A portable cleaning cart

Abstract

This invention discloses a convenient cleaning cart, belonging to the field of environmentally friendly cleaning equipment technology. A handle is provided at the rear of the cart, and wheels are installed at the rear end. A sweeping device is installed at the front end, with the wheels and sweeping device connected via a transmission mechanism. A dust collection box is located at the rear of the sweeping device. The sweeping device includes a roller with grooves evenly distributed around its circumference. Sliding strips are slidably installed in the grooves, and brush bristles are fixed to the outer surface of the sliding strips. An adjusting shaft is rotatably installed around the roller's axis. The middle of the adjusting shaft is connected to the inner surface of the sliding strips via a linkage mechanism. The brush assembly in this invention's sweeping device is telescopic and adjustable to suit more areas. During cleaning, the brush retracts for easy cleaning. A brush scraper is added to remove dust and debris adhering to the brush during operation. The brush scraper has multiple layers of plastic sleeves; when excessive dust accumulates, one layer can be peeled off, improving cleaning efficiency.

Description

Technical Field

[0001] This invention relates to the field of environmentally friendly cleaning equipment technology, specifically a convenient cleaning cart. Background Technology

[0002] In modern life, the continuous improvement of environmental conditions has led to increasingly higher demands for environmental hygiene. Robotic vacuum cleaners, a type of intelligent robot that has entered the market in recent years, can replace people in cleaning indoor spaces and are relatively convenient to use. However, robotic vacuum cleaners are expensive, have limited applicability, and require charging and routine maintenance. Therefore, their ease of use and portability are still not entirely satisfactory.

[0003] Chinese patent discloses a hand-operated sweeper (CN211256815U), including a frame. The front end of the frame is equipped with a walking wheel axle device and a sweeping roller device. The walking wheel axle device is connected to the sweeping roller device via a roller chain. The rear end of the frame has a dust drawer, which works in conjunction with the sweeping roller device to collect garbage into the drawer. This design mainly consists of three components: the walking wheel axle device, the sweeping roller device, and the dust drawer. In use, the operator holds the handle and pushes the vehicle, causing the walking wheel axle device to drive the sweeping roller device to sweep up garbage from the ground and collect it into the dust drawer.

[0004] The shortcomings of the existing technology are: the brush in the sweeping roller device is a fixed design and cannot be adjusted according to the site of use; during operation, the working brush is prone to accumulating dust and other debris, which will reduce the sweeping quality of the ground and make the brush cleaning troublesome. Summary of the Invention

[0005] To address the shortcomings of the prior art, the present invention provides a convenient cleaning cart.

[0006] The present invention adopts the following technical solution: a convenient cleaning cart, including a cart body, a handle at the rear of the cart body, a driving wheel installed at the rear of the cart body, and a sweeping device installed at the front of the cart body. The driving wheel and the sweeping device are connected by a transmission mechanism. A dust collection box is provided at the rear of the sweeping device. The sweeping device includes a roller, with grooves evenly distributed on the circumference of the roller. A slide bar is slidably installed in the grooves, and bristles are fixed on the outer surface of the slide bar. An adjusting shaft is rotatably installed at the axis of the roller. The middle part of the adjusting shaft is connected to the inner side of the slide bar through a linkage mechanism.

[0007] Preferably, the adjusting shaft includes an outer sleeve, a middle sleeve, and an inner rotating rod that are sequentially fitted together; the slide bars are divided into three groups evenly distributed around the axis of the drum, and the outer sleeve, the middle sleeve, and the inner rotating rod are connected to a corresponding group of slide bars through the linkage mechanism.

[0008] Preferably, the slide groove is a hollow fan-shaped structure with evenly distributed through holes on its outer side; the slide bar is located in the slide groove, and the bristles on the outer surface of the slide bar pass through the through holes on the outer side of the slide groove.

[0009] Preferably, the sweeping device has a channel at its rear that cooperates with it, and the dust collection box is inserted into the channel from the side of the vehicle body. The upper side of the dust collection box is open and communicates with the channel. A lower scraper that cooperates with the brush bristles is fixed at the upper front end of the dust collection box, and the surface of the lower scraper has protrusions that cooperate with the brush bristles. An upper scraper that cooperates with the brush bristles is fixed at the upper front end of the channel, and the surface of the upper scraper has protrusions that cooperate with the brush bristles.

[0010] Preferably, the surfaces of the lower scraper and the upper scraper are provided with multiple layers of plastic sleeves.

[0011] Preferably: a drive pulley is fixed to one end of the shaft of the walking wheel; end caps are fixed to both ends of the roller, and a driven pulley is fixed to the shaft of the end cap on the same side as the drive pulley; the drive pulley and the driven pulley are connected by a transmission belt; an outer cover is provided for the drive pulley, the driven pulley and the transmission belt.

[0012] The beneficial effects of this invention are as follows: the brush assembly in the sweeping device can be extended and retracted to adjust the brush density and working frequency, making it suitable for more areas; during cleaning, the brush is retracted, shortening the exposed part of the brush, thereby pushing out the dust and debris adhering to the brush, facilitating brush cleaning; a brush scraper is added, which can remove dust and debris adhering to the brush during operation, and the brush scraper is equipped with multiple layers of plastic sleeves, which can be peeled off when too much dust is collected, improving cleaning efficiency; the sweeping device uses the rear wheels for power, making control simple, and the dust collection box can be pulled out laterally for easy cleaning of accumulated dust. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a first-view perspective perspective view of the present invention;

[0015] Figure 2 for Figure 1 A schematic diagram of the structure after removing the outer cover;

[0016] Figure 3 This is a second-view perspective perspective view of the present invention;

[0017] Figure 4 for Figure 3 A schematic diagram of the structure after removing one side wall of the vehicle body;

[0018] Figure 5 This is a first-person view of the installation structure of the upper and lower scrapers;

[0019] Figure 6 This is a second-view installation structure diagram of the upper and lower scrapers;

[0020] Figure 7 This is a schematic diagram of the internal structure of the sweeping device;

[0021] Figure 8 This is a schematic diagram of one structure for adjusting the rotating shaft in an embodiment of the present invention.

[0022] Explanation of reference numerals in the attached drawings: 1. Vehicle body; 2. Handrail; 3. Wheel; 4. Sweeping device; 5. Transmission mechanism; 6. Roller; 7. Slide groove; 8. Slide bar; 9. Brush bristles; 10. Adjustment shaft; 1001. Outer sleeve; 1002. Middle sleeve; 1003. Inner rotating rod; 11. Linkage mechanism; 12. Channel; 13. Lower scraper; 14. Upper scraper; 15. End cover; 16. Driving pulley; 17. Driven pulley; 18. Transmission belt; 19. Outer cover; 20. Dust collection box. Implementation

[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] Combination Figures 1 to 4 As shown, a portable cleaning cart includes a cart body 1, with a handle 2 at the rear of the cart body 1. Wheels 3 are mounted at the rear of the cart body 1, and a sweeping device 4 is mounted at the front of the cart body 1.

[0025] Combined Figure 7As shown, the sweeping device 4 includes a roller 6, with both ends of the roller 6 rotatably connected to the vehicle body 1. End caps 15 are fixed to both ends of the roller 6. The roller 6 has evenly distributed grooves 7 on its circumference. Each groove 7 is a hollow, fan-shaped structure, and its outer surface has evenly distributed through holes. A slider 8 is located within the groove 7, and bristles 9 are fixed to its outer surface, passing through the through holes on the outer surface of the groove 7. An adjusting shaft 10 is located at the axis of the roller 6, and is rotatably connected to the end caps 15. The middle of the adjusting shaft 10 is connected to the inner surface of the slider 8 via a linkage mechanism 11. The linkage mechanism 11 is a two-bar structure, and a through slot is provided on the roller 6 to avoid the linkage mechanism 11. Rotating the adjusting shaft 10 can cause the slider 8 to extend and retract within the groove 7, thereby adjusting the extension length of the bristles 9. Preferably, a locking nut is provided at the end of the adjusting shaft 10 for easy locking after adjustment, improving the stability of the bristles 9.

[0026] Combined Figure 8 As shown, in this embodiment, the adjusting shaft 10 adopts a three-stage structure. The adjusting shaft 10 includes an outer sleeve 1001, a middle sleeve 1002, and an inner rotating rod 1003 of unequal lengths, which are sequentially fitted together. The outer sleeve 1001, the middle sleeve 1002, and the inner rotating rod 1003 can rotate relative to each other and operate independently. The slide bars 8 are divided into three groups that are evenly distributed around the axis of the roller 6. The outer sleeve 1001, the middle sleeve 1002, and the inner rotating rod 1003 are connected to a corresponding group of slide bars 8 through a linkage mechanism 11. In this way, the three groups of slide bars 8 can be adjusted independently through the outer sleeve 1001, the middle sleeve 1002, and the inner rotating rod 1003, and the density of the bristles 9 can be adjusted accordingly.

[0027] Combination Figures 4 to 6 As shown, a channel 12 is provided on the rear side of the sweeping device 4 to cooperate with the sweeping device 4. The dust collection box 20 is inserted into the channel 12 from the side of the vehicle body 1. The upper side of the dust collection box 20 is open and communicates with the channel 12. A lower scraper 13 that cooperates with the brush bristles 9 is fixed at the upper front end of the dust collection box 20. The surface of the lower scraper 13 has protrusions that cooperate with the brush bristles 9. An upper scraper 14 that cooperates with the brush bristles 9 is fixed at the upper front end of the channel 12. The surface of the upper scraper 14 has protrusions that cooperate with the brush bristles 9. Multiple layers of plastic sleeves are provided on the surfaces of the lower scraper 13 and the upper scraper 14. During operation, the upper and lower scrapers and protrusions can remove dust and other debris adhering to the brush. In addition, the multiple layers of plastic sleeves can be removed when too much dust is collected, which improves the convenience and efficiency of cleaning.

[0028] Combination Figure 1 and Figure 2As shown, the traveling wheel 3 is connected to the sweeping device 4 via a transmission mechanism 5. A drive pulley 16 is fixed to one end of the axle of the traveling wheel 3. A driven pulley 17 is fixed to the axis of the end cover 15 on the same side as the drive pulley 16. The drive pulley 16 and the driven pulley 17 are connected by a transmission belt 18. An outer cover 19 is provided around the drive pulley 16, the driven pulley 17, and the transmission belt 18.

[0029] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A portable cleaning cart, comprising a cart body (1), wherein a handle (2) is provided at the rear of the cart body (1), characterized in that: The vehicle body (1) is equipped with a walking wheel (3) at the rear end and a sweeping device (4) at the front end. The walking wheel (3) and the sweeping device (4) are connected by a transmission mechanism (5). A dust collection box (20) is provided on the rear side of the sweeping device (4). The sweeping device (4) includes a roller (6). The roller (6) is evenly distributed with grooves (7) on its circumference. A slide bar (8) is slidably installed in the groove (7). Brush bristles (9) are fixed on the outer side of the slide bar (8). An adjusting shaft (10) is rotatably installed on the axis of the roller (6). The middle part of the adjusting shaft (10) is connected to the inner side of the slide bar (8) through a linkage mechanism (11). The adjusting shaft (10) includes an outer sleeve (1001), a middle sleeve (1002), and an inner rotating rod (1003) that are sequentially fitted together; the slide bars (8) are divided into three groups evenly distributed around the axis of the roller (6), and the outer sleeve (1001), the middle sleeve (1002), and the inner rotating rod (1003) are connected to a group of slide bars (8) through the linkage mechanism (11); The groove (7) is a hollow fan-shaped structure with evenly distributed through holes on the outer side of the groove (7); the slide bar (8) is located in the groove (7), and the bristles (9) on the outer surface of the slide bar (8) pass through the through holes on the outer side of the groove (7).

2. The portable cleaning cart according to claim 1, characterized in that: The sweeping device (4) has a channel (12) for cooperating with it on the rear side. The dust collection box (20) is inserted into the channel (12) from the side of the vehicle body (1). The upper side of the dust collection box (20) is open and communicates with the channel (12). A lower scraper (13) for cooperating with the brush bristles (9) is fixed at the upper front end of the dust collection box (20). The surface of the lower scraper (13) has protrusions for cooperating with the brush bristles (9). An upper scraper (14) for cooperating with the brush bristles (9) is fixed at the upper front end of the channel (12). The surface of the upper scraper (14) has protrusions for cooperating with the brush bristles (9).

3. A portable cleaning cart according to claim 2, characterized in that: The surfaces of the lower scraper (13) and the upper scraper (14) are provided with multiple layers of plastic sleeves.

4. A portable cleaning cart according to claim 1, characterized in that: One end of the shaft of the walking wheel (3) is fixed with a drive pulley (16); both ends of the roller (6) are fixed with end caps (15), and the drive pulley (17) is fixed with the shaft of the end cap (15) on the same side as the drive pulley (16); the drive pulley (16) and the drive pulley (17) are connected by a transmission belt (18); an outer cover (19) is provided on the drive pulley (16), the drive pulley (17) and the transmission belt (18).

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