CN108951503B - A vacuum cleaner - Google Patents

Abstract

The invention discloses a dust-absorption sweeper, which comprises a chassis carrier and a sweeper body shell arranged on the chassis carrier, and is characterized in that: the rear end of the chassis carrier is provided with a garbage can for collecting and cleaning garbage cleaned by the cleaning mechanism; and a dust suction device is arranged above the dustbin. The dust collection type sweeper disclosed by the invention is small in size, convenient and quick to use, simple in structure, low in production cost, good in dust removal effect and good in application prospect.

Description

A vacuum cleaner

technical field

The invention belongs to the technical field of environmental sanitation, and more particularly relates to a vacuuming type sweeper.

Background technique

More and more equipments are used for road cleaning, but most of them have defects such as complex structure, large volume, high cost and inconvenient use. In the prior art, the vacuuming and dust-reducing effect of the sweeper is not good, and needs to be further improved to better meet people's needs.

SUMMARY OF THE INVENTION

The purpose of the present invention is to solve the problems existing in the prior art, and to provide a dust-sweeping sweeper with a simple structure, good use reliability, and effective reduction of dust.

In order to achieve the above purpose, the technical solution adopted by the present invention is as follows: the provided dust-absorbing sweeper includes a chassis carrier and a body shell arranged on the chassis carrier, and is characterized in that: the rear end of the chassis carrier is provided with A garbage can for collecting and cleaning mechanism to clean garbage; a vacuuming device is arranged above the garbage can.

In order to make the above-mentioned technical solutions more detailed and concrete, the present invention also provides the following further preferred technical solutions to obtain satisfactory practical effects:

The dust suction device includes a dust suction box body, and a fume and dust passage connected to the dust suction box body is provided in the dust box.

A dust suction fan assembly is arranged above the dust suction box.

A plate filter is arranged in the dust suction box, and a dust-shock scraper assembly is arranged on the plate filter.

The dust-shock scraper assembly includes a scraper in contact with the plate filter, and the scraper can move back and forth along a scraper guide rail provided in the dust suction box.

The plate filter is provided with a plurality of the scrapers arranged at intervals, the upper ends of the scrapers are connected as a whole by a connecting plate, and a sliding plate sleeved on the scraper guide rail is arranged on the connecting plate. set.

One end of the dust-shock scraper assembly is connected to a cable, and the other end of the cable is connected to a dust-shock handle through a fixed pulley.

The dust-shock scraper assembly is provided with a return spring at the opposite end of the cable, one end of the return spring is connected to the dust-shock scraper assembly, and the other end is fixedly connected to the suction on the dust box.

The dust suction box is provided with a detachable upper cover of the box.

The dust suction fan assembly is covered with a fan upper cover, the fan upper cover is provided with a plurality of ventilation holes, and the fan upper cover is fixedly connected to the box upper cover by bolts.

Compared with the prior art, the dust-absorbing sweeper of the present invention has the following advantages: the dust-absorbing sweeper of the present invention has the advantages of small volume, convenient and quick use, simple structure, low production cost, good dust removal and dust reduction effect, and good application prospects. .

Description of drawings

The content expressed in the accompanying drawings of this specification and the symbols in the drawings are briefly described below:

Fig. 1 is the structure schematic diagram of the driving type sweeper of the present invention;

Fig. 2 is the structure schematic diagram of the driving type sweeper of the present invention;

Figure 3 is a schematic structural diagram of the front wheel steering assembly;

Figure 4 is a schematic structural diagram of the lifting system of the bilateral brush cleaning mechanism;

Figure 5 is a schematic structural diagram of the lifting system of the roller brush cleaning mechanism;

Figure 6 is a schematic diagram of the lifting control of the roller brush cleaning mechanism;

7 is a schematic structural diagram of a roller brush cleaning mechanism;

8 is a schematic structural diagram of a roller brush rotating shaft bearing protection device;

Figure 9 is a schematic diagram of the structure of the vacuum system;

Figure 10 is a front view of the vacuum cleaner;

Figure 11 is a top view of the vacuum cleaner;

Figure 12 is a schematic diagram of the internal structure of the vacuum cleaner.

The figures are marked as: 1, the ceiling, 2, the body shell;

3. Steering assembly, 31, steering wheel, 32, direction upper shaft, 33, driving gear, 34, driven gear, 35, direction lower shaft, 36, fixed sleeve, 37, limit block, 38, steering block, 39. Front wheel bracket;

4. Chassis carrier;

5. Bilateral brush cleaning mechanism, 51, side brush, 52, side brush motor, 53, connecting beam, 54, limit pin, 55, connecting seat, 56, gas spring; 500, bilateral brush lifting system, 501, side brush Lifting handle, 502, side brush lifting cable, 503, side brush lifting rod, 504, lifting pallet;

6. Roller brush motor,

7. Rolling brush cleaning mechanism, 71, rolling brush, 72, rolling brush shaft, 73, rolling brush end cover, 74, protective cover, 75, bearing seat, 76, bearing, 700, rolling brush lifting system, 701, rolling brush Lifting handle, 702, Lifting cam, 703, Rolling brush lifting cable, 704, Turning block fixing plate, 705, Lifting turning block, 706, Rolling brush lifting link, 707, Rolling brush lifting block, 708, Lifting shaft , 709, roller brush bracket;

8. Drive the rear wheel,

9. Dust collector, 91, vacuum fan assembly, 92, vacuum box, 93, scraper guide rail, 94, dust-shock scraper assembly, 941, scraper, 942, connecting plate, 943, sliding sleeve , 95, plate filter, 96, smoke channel, 97, fan upper cover, 98, dust handle, 99, return spring;

10, water tank, 11, trash can, 12, electric control box, 13, battery pack, 14, water pump, 15, spray nozzle, 16, front wheel.

Detailed ways

The specific embodiments of the present invention will be described in further detail below through the description of the embodiments with reference to the accompanying drawings.

As shown in FIG. 1 , the vacuum cleaner of the present invention includes a chassis carrier 4 and a body shell 2 disposed on the chassis carrier 4 . The rear end of the chassis carrier 4 is provided with a garbage box 11 for collecting the garbage cleaned by the cleaning mechanism, and a dust suction device 9 is provided above the garbage box 11 .

In the present invention, as shown in FIGS. 9 , 10 , 11 and 12 , the dust suction device 9 includes a dust suction box 92 , and the dust box 11 is provided with a smoke channel 96 which communicates with the dust suction box 92 . The preferred cover fume and dust passage 96 adopts a trapezoidal body structure whose cross section gradually changes from bottom to top, which can improve the effect of dust suction and diversion.

In the present invention, a dust suction fan assembly 91 is provided above the dust suction box 92 . It is used to drain the dust to the top, so as to better filter the dust and improve the dust removal effect.

In the present invention, the dust collecting box 92 is provided with a plate filter 95, and the plate filter 95 is provided with a dust shock scraper assembly 94. As shown in FIG. 12 , the dust shock scraper assembly 94 includes a scraper 941 in contact with the plate filter 95 , and the scraper 941 can move back and forth along the scraper guide rail 93 provided in the dust suction box 92 .

In the present invention, preferably, the plate filter 95 is provided with a plurality of scrapers 941 arranged at intervals to improve the dust-shock effect; the upper ends of the scrapers 941 are connected together by the connecting plate 942, which can realize the synchronization of movement and facilitate the Control; a sliding sleeve 943 sleeved on the scraper guide rail 93 is provided on the connecting plate 942 . One end of the dust-vibrating scraper assembly 94 is connected to a cable, and the other end of the cable is connected to a dust-vibrating handle 98 through the fixed pulley. By pulling the dust vibration handle 98, the cable drives the entire dust vibration scraper assembly 94 to move along the scraper guide rail 93, and the scraper 941 acts on the filter element of the plate filter 95 to shake off the dust attached to the filter element.

In the present invention, as shown in FIG. 11 , the dust-shock scraper assembly 94 is provided with a return spring 99 at the end opposite to the cable. One end of the return spring 99 is connected to the dust-shock scraper assembly 94, and the other end is It is fixedly connected to the dust suction box body 92 so as to control the automatic reset of the dust shock scraper assembly 94 .

In the present invention, preferably, the dust suction box is provided with a detachable upper cover of the box, which is convenient for disassembly and maintenance. The dust suction fan assembly 91 is covered with a fan upper cover 97, the fan upper cover 97 is provided with a plurality of ventilation holes, and the fan upper cover 97 is fixedly connected to the box upper cover by bolts.

The dust-absorbing sweeper of the present invention, the dust-absorbing device 9 includes a dust-absorbing fan assembly 91 , a dust-absorbing box 92 , a scraper guide rail 93 , a dust-shaking scraper assembly 94 , a plate filter 95 , and a dust channel 96 , Zhen dust handle 98, reset tension spring 99. In a specific embodiment, the dust suction fan assembly 91 is installed above the dust suction box 92 by bolts, and the box upper cover of the dust suction box 92 is detachable, which is convenient for the replacement and maintenance of wearing parts. The dust collecting box 2 is installed on the rear end of the chassis carrier 4 of the sweeper by bolts, facing the top of the dustbin 11, and there is an opening above the chassis carrier 4 of the sweeper, and the dust channel 96 passes through and connects the dustbin 11 and the dust collector. The box body 92, the dust collecting box body 92 and the garbage box 11 are all sealed with foam rubber strips when they are assembled with the chassis carrier 4. The plate filter 95 is installed in the cavity inside the dust suction box 92, and is pressed by the pressing plate. The dust-shock scraper assembly 94 is installed on the scraper guide rail 93 through the shaft hole of the sliding sleeve 943, the sliding sleeve 943 can reciprocate linearly along the scraper guide rail 93, and the scraper guide rail 93 is installed on the positive side of the plate filter 95 by bolts. above, and the scraper of the dust-shock scraper assembly 94 can penetrate into the folded filter paper of the plate filter 95 by 5mm. The left end of the dust-vibrating scraper assembly 94 is connected with a dust-vibrating handle 98, and the right end is connected with a reset tension spring 10.

Working principle: When the sweeper is working, press the vacuum button, the vacuum fan assembly 91 will be energized and rotated at a high speed, and the air in the vacuum box 92 will be sucked out to form a near-vacuum state of the cavity, and then pass through the negative pressure of atmospheric pressure. The action makes the garbage box 11 form an upward airflow, which drives the dust to flow to the inside of the dust suction box 92 through the dust channel 96, and is adsorbed on the filter paper by the action of the plate filter 95. When the sweeper works for a long time, the filter paper will be fully adsorbed. Affects the vacuuming effect of the vacuum fan assembly 91. At this time, it is necessary to turn off the vacuum fan assembly 91 to perform dust vibration work to remove the dust on the filter paper. The dust shaking process is as follows: manually lift the dust shaking handle 98 upward, and drive the dust shaking scraper assembly 94 to the left to move linearly along the scraper guide rail 93. When the dust shaking handle 98 is loosened, the dust shaking scraper assembly 94 will reset. The tension spring 99 returns to its original position, and through the linear reciprocating motion of the dust-vibrating scraper assembly 94, the polyurethane scraper repeatedly scrapes the filter paper of the plate filter 95 to form vibration, and the dust is shaken and dropped into the dustbin 11. , in order to complete the dust-shaking process, and then improve the vacuuming effect.

As shown in FIG. 1 , the vacuum cleaner of the present invention includes a chassis carrier 4 and a body shell 2 disposed on the chassis carrier 4 , and a ceiling 1 is provided above the body shell 2 . The front end of the chassis carrier 4 is provided with a steering assembly 3 that drives the front wheels to rotate, and the rear end of the chassis carrier 4 is provided with two driving rear wheels 8 , which are controlled and driven by the battery pack 13 arranged behind the chassis carrier 4 .

In the present invention, as shown in FIGS. 1 and 2 , a bilateral brush cleaning mechanism 5 is installed under the front part of the chassis carrier 4 , a rolling brush cleaning mechanism 7 is installed at the lower part of the middle part of the chassis carrier 4 , and the rear end of the chassis carrier 4 is provided with garbage The box 11 , the roller brush cleaning mechanism 7 is located behind the bilateral brush cleaning mechanism 5 , and the garbage box 11 is arranged behind the roller brush cleaning mechanism 7 .

As shown in FIG. 1 , a spray nozzle 15 is provided at the front end of the front wheel, the water tank 10 is arranged at the rear end position above the chassis carrier 4 , and the water pump 14 outputs the water in the water tank 10 to the spray nozzle 15 through a water pipe.

As shown in FIG. 1 , above the water tank 10 is arranged a dust collecting device 9 which is connected to the garbage box 11 to reduce dust and improve the effect of dust collection and dust reduction.

In the present invention, as shown in FIG. 2 , the sweeper is further provided with a bilateral brush lifting system 500 and a rolling brush lifting system 700 that respectively control the lifting and lowering of the bilateral brush cleaning mechanism 5 and the rolling brush cleaning mechanism 7 . The bilateral brush lifting system 500 and the rolling brush lifting system 700 respectively include a side brush lifting handle 501 and a rolling brush lifting handle 502 arranged at the front end of the cab, and the side brush lifting handle 501 and the rolling brush lifting handle 502 are connected to the bilateral Brush cleaning mechanism 5 and roller brush cleaning mechanism 7 .

In the present invention, as shown in FIG. 3 , the steering assembly 3 includes a steering wheel 31 , a driving gear 33 is connected under the steering wheel 31 through a directional shaft 32 , and the driving gear 33 is meshed with a driven gear 34 provided with gears on the inner wall surface for transmission. The moving gear 34 drives the lower shaft 35 connected to the front wheel 16 to rotate.

In the present invention, a fixed sleeve 36 is provided below the driven gear 34 , and two downward shafts 35 are arranged symmetrically on both sides of the front wheel 16 . The lower shaft 35 is supported and connected by an even pulley. The connecting pulley is provided with a steering block 38 to limit the rotation range of the front wheel, and the fixed sleeve 36 is provided with a limit block 37 to limit the rotation angle of the steering block 38 . The steering block 38 is provided with two welded on the symmetrical ends of the connecting plate, and the included angle is 100°. The limit block 37 is welded on the fixed sleeve 36. When the position requires the direction of the lower shaft 35 to rotate, when it turns to the steering block At the 38 position, the steering block 38 is blocked by the limit block 37 and cannot continue to rotate. The front wheel 16 is connected to the downward direction axle 35 by the front wheel bracket 39 .

As shown in Fig. 1, it includes a ceiling 1, a body shell 2, a steering assembly 3, a chassis carrier 4, a bilateral brush cleaning mechanism 5, a rolling brush motor 6, a rolling brush cleaning mechanism 7, a driving rear wheel 8, a garbage box 11, and a water tank 10. Dust collector 9, electric control box 12, battery pack 13, water pump 14, spray nozzle 15.

DETAILED DESCRIPTION: The ceiling 1 is mounted on the body shell 2, the body shell 2 is fixed on the chassis carrier 4 by bolts, the steering assembly 3 is mounted on the front end of the chassis carrier 4, and drives the rear wheel 8, the battery pack 13, the electric control box 12, The water tank 10 and the dust collection system 9 are distributed at the rear end of the chassis carrier 4, as shown in Figure 1; the bilateral brush cleaning mechanism 5 is fixed under the front part of the chassis carrier 4 by bolts, and the rolling brush cleaning mechanism 7 is installed under the middle of the chassis, It is located behind the bilateral brush cleaning mechanism 5, and the rolling brush motor 6 is installed in the middle of the chassis carrier 4, between the bilateral brush cleaning mechanism 5 and the rolling brush cleaning mechanism 7, and the front opening of the garbage box 11 is placed behind the rolling brush cleaning mechanism 7. The rear end is fixed on the rear end of the chassis carrier 4 through a buckle; the side brush lifting handle 501 and the rolling brush lifting handle 502 of the bilateral brush lifting system 500 and the rolling brush lifting system 700 are located at the front of the cab, which is convenient for hand-held operation. , the side brush lifting handle 501 and the rolling brush lifting handle 502 are connected to the bilateral brush cleaning mechanism 5 and the rolling brush cleaning mechanism 7 respectively through the transmission device, so as to achieve the purpose of controlling the lifting of the two mechanisms; The brush motor 6 is connected, the spray nozzle 15 and the water pump 14 are respectively installed on the front end and the middle and lower ends of the chassis carrier 4, the water channel is connected, and is connected to the water tank 10 through a water pipe.

Working principle: When the sweeper is working, the staff will quickly transfer the sweeper from the parking area to the working area (the driving speed of the dual-drive wheel reaches 25km/h, which is significantly faster than the 10km/h of the ordinary three-wheel sweeper, saving time. , the working radius is large), the operator puts down the bilateral brush cleaning mechanism 5 and the rolling brush cleaning mechanism 7 by operating the lifting handle to make it close to the working ground, press the start switch, the bilateral brush cleaning mechanism 5 rotates inward at 100r/min±10 The corner garbage is collected in the middle of the chassis carrier 4, and then the roller brush in the roller brush cleaning mechanism 7 rotates counterclockwise at a speed of 600r/min±10 to sweep the garbage and throw it into the rear garbage box 11. In order to avoid cleaning At the same time, the dust will cause secondary pollution. The dust collector 9 is installed at the rear end of the chassis carrier 4 to collect the dust rolled up by the brush cleaning mechanism 7. At the same time, through the water tank 10, the water system of the water pump 14 and the spray nozzle 16 can be Effectively prevent and control the dust rolled up by the bilateral brush cleaning mechanism 5 . The advantages of the electric sweeper are that the transition speed is fast, the working radius is large, the manual lifting and cleaning assembly is simple and reliable, and the production cost can be reduced at the same time.

As shown in Figures 7 and 8, the sweeper of the present invention is provided with a rolling brush cleaning mechanism 7 at the lower part of the middle of the chassis carrier 4, and the rear end of the chassis carrier 4 is provided with a garbage box 11 located behind the rolling brush cleaning mechanism 7; The brush cleaning mechanism 7 includes a rolling brush 71 and a rolling brush rotating shaft 72 penetrating through the center of the rolling brush 71 , and a protective cover 74 covering the bearing 76 is provided on the rolling brush rotating shaft 72 .

Both ends of the rolling brush rotating shaft 72 are provided with rolling brush brackets 709 for supporting the rolling brush 71 . A bearing 76 is provided between the bearing seat 75 and the roller brush rotating shaft 72 .

The roller brush rotating shaft 72 is provided with a roller brush end cover 73 which is attached to the end face of the roller brush.

In the present invention, the protective cover 74 is a U-shaped structure, which is arranged between the bearing 76 and the roller brush end cover 73 , and the U-shaped opening is arranged toward the inner end surface of the bearing 76 .

As shown in FIG. 8 , the inner end surface of the bearing seat 75 is provided with an inwardly protruding boss, and the protective cover 74 covers the boss to further improve the protection effect.

The inner diameter of the protective cover 74 is 2-3 mm larger than the outer diameter of the bearing seat 75, and the inner end surface of the protective cover 74 is 1-2 mm apart from the end surface of the bearing seat.

In the present invention, the roller brush rotating shaft bearing protection device of the sweeper, the roller brush bracket 709 is installed on the frame of the sweeper by bolts, the bearing seat 75 is welded on the roller brush bracket 709, and the bearing 76 is installed on the bearing seat inside the bearing seat 75. , the protective cover 74 is welded on the roller brush shaft 72, and one end of the roller brush shaft 72 is fixed on the bearing seat 75 through the bearing 76. According to the design requirements, the inner diameter of the protective cover 74 is larger than the outer diameter of the bearing seat 75 by 2-3mm, and The distance between the inner end face of the protective cover 74 and the outer end face of the bearing seat 75 is 1-2 mm, so that the rotation of the protective cover 74 will not interfere with the bearing seat 75 when the roller brush shaft 72 rotates, and at the same time, the bearing 76 is wrapped in the protective cover 74. In the inner cavity, the function of protecting the bearing 76 is achieved. The other end of the roller brush rotating shaft 72 is connected to the hole position of the roller brush end cover 73 , and then the main brush can be rotated through the bearing 76 .

When the sweeper is working, the brush motor 6 drives the brush shaft 72 to rotate at a high speed through the V-belt and the pulley, thereby driving the sweeper to rotate the brush. When cleaning the garbage on the working ground, the brush shaft 72 will inevitably be entangled with ropes. At the same time, due to the limitation of the roller brush end cover 73, the rope entanglement will accumulate in the gap between the roller brush rotating shaft 72 and the roller brush end cover 73. The more it is, the sealing ring of the bearing 76 will be damaged by friction quickly, which will cause the balls inside the bearing 76 to be worn out or get stuck by dust and sand particles. The use of the iron protective cover 74 can well protect the bearing 76, thereby reducing the replacement frequency of the roller brush bearing 76 of the sweeper, and improving the service life and work efficiency of the sweeper.

The sweeper of the present invention, as shown in Figures 5 and 6, is provided with a rolling brush cleaning mechanism 7 at the lower part of the middle of the chassis carrier 4, and the rear end of the chassis carrier 4 is provided with a garbage box 11 located behind the rolling brush cleaning mechanism 7; There is also a rolling brush lifting system 700 for controlling the lifting and lowering of the rolling brush cleaning mechanism 7. The rolling brush lifting system 700 includes a rolling brush lifting handle 701 arranged at the front end of the cab, and the rolling brush lifting handle 701 is connected to the rolling brush cleaning mechanism 7 through a transmission device. .

In the present invention, as shown in FIGS. 5 and 6 , the transmission device includes a lifting cam 702 arranged at one end of the rolling brush lifting handle 701 , and the lifting cam 702 is connected with a rolling brush lifting cable 703 that drives the rolling brush cleaning mechanism 7 to move up and down. .

The rolling brush cleaning mechanism 7 includes a rolling brush 71 and a rolling brush rotating shaft 72 which is penetrated at both ends of the center of the rolling brush 71. Both ends of the rolling brush rotating shaft 72 are provided with rolling brush brackets 709 supporting the rolling brush. The shaft 708 is connected.

A brush lifting block 707 is provided on the lifting shaft 708 . One end of the brush lifting block 707 is fixedly connected to the lifting shaft 708 , and the other end is connected to the brush lifting cable 703 through the brush lifting link 706 .

Preferably, the brush lift cable 703 is arranged in the vertical direction, and the brush lift link 706 is arranged in the horizontal direction. Easier and easier to upgrade.

In the present invention, the roller brush brackets 709 are inclined at a certain angle toward the direction of the roller brush lifting link 706, and the roller brush brackets 709 at both ends are arranged in parallel. The roller brush lifting block 707 on the lifting rotating shaft 708 and the lifting rotating block 705 are located in the same vertical plane.

The lifting and turning block 705 is an L-shaped corner block, and the corner of the L-shaped corner block is rotatably hinged on the turning block fixing plate 704 through a circlip. During manipulation, the connection point at the corner is used as the center of rotation, and the rolling brush is lifted and pulled up and down. The vertical tension of the cable 703 is converted into the horizontal tension of the brush lift link 706 . The rolling brush lifting block 707 is fixedly connected to the lifting shaft 708, and the rolling brush lifting block 707 is inclined at a certain angle toward the side of the rolling brush 71 in the vertical direction, which is convenient to be driven by the horizontal pulling force of the rolling brush lifting link 706. The roller brush rotates upward and lifts off the ground.

In the present invention, the roller brush lifting handle 701 is installed on the handle base provided at the front end of the cab, and the handle base is provided with a locking groove for locking the lifting cam.

The handle base and the swivel block fixing plate 704 are welded to the corresponding positions of the sweeper chassis carrier 4, respectively. The brush lift handle 701 passes through the handle base mounting hole, and one end is bolted to the lift cam 702 and limited. The lifting and rotating block 705 is fixed on the rotating block fixing plate 704 by a retaining spring and can be rotated 360°. Both ends of 706 are respectively connected with the lifting block 705 and the rolling brush lifting block 707 through split pins. The rolling brush lifting block 707 is welded on the lifting rotating shaft 708. The lifting rotating shaft 708 is installed on the floor of the sweeper through a copper sleeve and is located on the rolling brush. 71, and ensure that the lifting block 705 and the roller brush lifting block 707 are on the same plane. The roller brush bracket 709 is fixed on both ends of the lifting shaft 708 by keys and bolts, and the roller brush 71 is installed on the roller brush bracket 709 .

As shown in Figure 6, when the sweeper stops working, after turning off the cleaning switch, the operator manually rotates the brush lift handle 701 upward along the a direction, and then drives the lift cam 702 to move in the same direction, and the lift cam 702 makes the roller brush lift and pull The cable 703 is displaced along the b direction, and then drives the lifting block 705 to rotate along the c direction. The lifting block 705 also drives the rolling brush lifting link 706 to move along the d direction, so that the rolling brush lifting block 707 rotates along the e direction, and finally The roller brush bracket 709 drives the roller brush 71 to rotate and lift upward along the f direction. When the lifting cam 702 rotates past the apex of the arc trajectory, it will rely on the locking groove on the handle base to limit the position, and through gravity and the reverse of the entire mechanism Under the action of pulling force, self-locking is formed, so as to achieve the purpose of raising the main brush. When the sweeper is working, the operator manually reversely controls the roller brush lifting handle 701 to release the self-locking state of the lifting cam 702. At this time, the roller brush will automatically drop under the action of gravity, and adjust through the adjustable lower limit point. The pressure of the roller brush on the ground, and then the manual lowering work function of the roller brush is realized. The structure arrangement can reduce the production cost of the sweeper, improve the stability, safety and convenience, and is suitable for various small and medium-sized electric sweepers.

In the present invention, as shown in FIG. 4 , the lifting and lowering of the bilateral brush cleaning mechanism 5 is controlled by the bilateral brush lifting and lowering system 500 . The bilateral brush lifting system 500 includes a side brush lifting handle 501 disposed at the front end of the cab, one end of the side brush lifting cable 502 is connected to the side brush lifting handle 501, and one end is connected to the side brush lifting rod 503.

The front end of the side brush lift rod 503 is provided with a lift bracket 504 , and the lift bracket 504 is provided with a limit hole corresponding to the lift and clamped in the limit pin 54 below the connecting beam 53 . By controlling the side brush lifting handle 501 to drive the lifting support plate 504 to move upward, the limit pin 54 at the upper end is correspondingly clamped to drive the bilateral brush cleaning mechanism 5 to lift upward.

The bilateral brush cleaning mechanism includes side brushes 51 arranged on both sides. The side brushes 51 are driven to rotate by the side brush motors 52 , and the side brushes 51 are provided with connecting seats 55 for installing the side brush motors. The side brushes 51 on both sides are connected by a connecting beam 53. The connecting beam 53 includes a middle section beam and end beams arranged at both ends. the gas spring 56. This structure arrangement can prevent the side brushes from being damaged due to impact during the operation of the sweeper, and the side brushes 51 on both sides can effectively prevent the side brushes from being damaged due to the impact of hard objects under the support of the gas spring 56 .

The dust-absorbing type sweeper of the invention has the advantages of small volume, convenient and quick use, simple structure, low production cost, good dust removal and dust reduction effect, and has a good application prospect.

The present invention has been exemplarily described above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned manner, as long as various insubstantial improvements made by adopting the method idea and technical solution of the present invention or directly applied to other occasions, All fall within the protection scope of the present invention.

Claims (6)

1. The utility model provides a dust absorption type street sweeper, includes the chassis carrier and locates the automobile body shell on this chassis carrier, its characterized in that: the rear end of the chassis carrier is provided with a garbage can for collecting and cleaning garbage cleaned by the cleaning mechanism; a dust collection device is arranged above the dustbin and comprises a dust collection box body, a plate filter is arranged in the dust collection box body, a dust shaking scraper assembly is arranged on the plate filter, one end of the dust shaking scraper assembly is connected with a pull rope, and the other end of the pull rope penetrates through a fixed pulley and is connected with a dust shaking handle; a smoke channel communicated to the dust collection box body is arranged in the garbage can, and the smoke channel adopts a trapezoidal structure with the gradually-reduced section from bottom to top; a dust collection fan assembly is arranged above the dust collection box body; the sweeper is characterized in that a rolling brush cleaning mechanism is mounted at the lower position of the middle of a chassis carrier, a dustbin is arranged behind the rolling brush cleaning mechanism, a rolling brush lifting system for controlling the rolling brush cleaning mechanism to lift is further arranged on the sweeper, the rolling brush lifting system comprises a rolling brush lifting handle arranged at the front end of a cab, the rolling brush lifting handle is connected to the rolling brush cleaning mechanism through a transmission device, the transmission device comprises a lifting cam arranged at one end of the rolling brush lifting handle, a rolling brush lifting stay cable for driving the rolling brush cleaning mechanism to move up and down is connected to the lifting cam, rolling brush supports for supporting a rolling brush are arranged at two ends of a rolling brush rotating shaft, the rolling brush supports at the two ends are connected through a lifting rotating shaft, a rolling brush lifting pull block is arranged on the lifting rotating shaft, one end of the rolling brush lifting pull block is fixedly connected to the lifting rotating shaft, and the other end of; the rolling brush lifting stay cable is arranged in the vertical direction, the rolling brush lifting connecting rod is arranged in the horizontal direction, the rolling brush lifting stay cable and the rolling brush lifting connecting rod are in transitional connection through a lifting rotating block, the lifting rotating block is an L-shaped corner block, and a protective cover covering a bearing is arranged on a rolling brush rotating shaft; be connected with on the round brush support and locate the bearing frame of round brush pivot axle head, be equipped with the laminating in the round brush pivot and be in round brush end cover on the round brush terminal surface, the protective cover is located the bearing with between the round brush end cover, be equipped with the boss that inwards stretches out on the bearing frame medial surface, the protective cover with on the boss.

2. The suction sweeper of claim 1, wherein: the dust shaking scraper plate assembly comprises a scraper plate contacted with the plate type filter, and the scraper plate can move back and forth along a scraper plate guide rail arranged in the dust collection box body.

3. The suction sweeper of claim 2, wherein: the plate filter is provided with a plurality of scrapers which are arranged at intervals, the upper ends of the scrapers are connected into a whole through a connecting plate, and the connecting plate is provided with a sliding sleeve which is sleeved on the scraper guide rail.

4. A dust-collecting sweeper according to claim 3, wherein: and one end of the dust shaking scraper assembly, which is opposite to the end provided with the inhaul cable, is provided with a return spring, one end of the return spring is connected to the dust shaking scraper assembly, and the other end of the return spring is fixedly connected to the dust collection box body.

5. The suction sweeper of claim 4, wherein: the dust collection box body is provided with a detachable box body upper cover.

6. The suction sweeper of claim 5, wherein: the dust absorption fan assembly is covered with a fan upper cover, the fan upper cover is provided with a plurality of ventilation holes, and the fan upper cover is fixedly connected with the box upper cover through bolts.

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