An unpowered sweeper

Abstract

The present application relates to the technical field of sweeper, in particular to a kind of unpowered sweeper, including shell, front wheel is installed in shell head, rear wheel is installed in shell tail, the garbage chamber with tail opening is formed in the shell, the transmission shaft is rotatably installed in the tail of the shell, multiple helical cleaning brushes of same rotation direction are installed on the transmission shaft, and helical surface is formed on the surface of helical cleaning brush, the transmission shaft end and the rear wheel between transmission assembly of the transmission shaft and the rear wheel rotation direction opposite are installed, the scraper of linear array arrangement is also installed in the shell and located in the top of the transmission shaft, and the helical cleaning brush and the scraper partially coincide;Garbage is swept into garbage chamber by rotating helical cleaning brush, and the garbage clamped on helical cleaning brush is scraped by scraper and falls on the helical surface of next helical cleaning brush, and the centrifugal force generated when helical cleaning brush rotates throws garbage on helical surface into garbage chamber.

Description

Technical Field

[0001] This invention relates to the field of sweeping machine technology, specifically to a non-powered sweeping machine. Background Technology

[0002] A non-powered sweeper is an environmentally friendly cleaning device that relies on human power to operate. Made of engineering plastics, it is corrosion-resistant and age-resistant. Its core structure includes a dual-brush system and adjustable-height brushes. The front and rear brushes rotate and collect waste through wheel friction. It is suitable for streets, residential areas, parks, and other locations where powered equipment is not suitable.

[0003] Currently, the rear brushes installed in sweepers are generally brush columns, which present two problems: First, once debris adheres, sticks, or gets stuck on the rear brushes, it becomes difficult to clean into the sweeper. Second, it can only sweep debris radially into the sweeper. When the debris is small, such as sand or dust, it will form a line of dust and debris at the sweeper's entrance. The sweeper can only sweep the top part of this line of debris into the sweeper, failing to simulate the action of manual sweeping where dust gathers together to form a larger volume of debris, thus preventing it from being cleaned into the sweeper.

[0004] The information disclosed in the background section is only intended to enhance the understanding of the background of this disclosure, and therefore may include information that does not constitute prior art known to those skilled in the art. Summary of the Invention

[0005] The purpose of this invention is to design a non-powered sweeper that can sweep garbage adhering to, attached to, or carried on the brush into the garbage truck, and can collect and clean up garbage that is not swept into the sweeper, so as to solve the above-mentioned shortcomings in the technology.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a non-powered sweeper, comprising a casing, a front wheel mounted on the head of the casing, a rear wheel mounted on the tail of the casing, a garbage chamber opening towards the tail of the casing, a drive shaft rotatably mounted on the tail of the casing, a plurality of spiral cleaning brushes arranged in a circular array with the same direction of rotation mounted on the drive shaft, the surface of the spiral cleaning brushes forming a spiral surface, a transmission component driving the drive shaft to rotate in the opposite direction to the rear wheel is installed between the end of the drive shaft and the rear wheel, and a scraper arranged in a linear array located at the top of the drive shaft is also installed inside the casing, the spiral cleaning brushes and the scraper partially overlapping;

[0007] The rotating spiral cleaning brush sweeps the garbage into the garbage chamber. At the same time, the garbage stuck on the spiral cleaning brush is scraped off by the scraper onto the spiral surface of the next spiral cleaning brush. The centrifugal force generated by the rotation of the spiral cleaning brush throws the garbage on the spiral surface into the garbage chamber.

[0008] Preferably, the spiral cleaning brush has three parts, which are arranged in a circumferential array on the outer circumferential surface of the drive shaft.

[0009] Preferably, the spiral cleaning brush has a thread helix angle of 45°-60°.

[0010] Preferably, the transmission assembly includes an external gear ring fixedly installed inside the rear wheel and a driven wheel fixedly installed at the end of the transmission shaft, the driven wheel meshing with the external gear ring.

[0011] Preferably, a trash can is detachably installed inside the housing, with openings at the top and near the rear wheel. A top cover is detachably installed on the top of the housing, and the space between the top cover, the trash can, and the housing forms the trash chamber.

[0012] Preferably, a stop bar is fixedly installed in the inner cavity of the garbage bin near the rear wheel, and the angle between the side of the stop bar near the rear wheel and the bottom surface of the inner cavity of the garbage bin is an obtuse angle.

[0013] Preferably, a rubber sheet is fixedly installed at the rear of the casing, with one end of the rubber sheet in contact with the ground and the other end facing the garbage chamber.

[0014] Preferably, the head of the frame is equipped with two symmetrically distributed connecting shafts, and a disc brush is rotatably mounted on the bottom of the connecting shaft. Both the disc brush and the rear wheel are equipped with transmission wheels, and transmission belts are mounted on the two transmission wheels.

[0015] Preferably, a positioning plate is fixedly installed on the frame, a knob is threadedly connected to the positioning plate, a connecting plate is provided between the knob and the positioning plate, and a telescopic handle is installed inside the connecting plate.

[0016] Preferably, both the disc brush and the spiral cleaning brush are bristle brushes, and the length of the spiral cleaning brush is greater than the distance between the drive shaft and the ground.

[0017] The technical effects and advantages provided by the present invention in the above technical solution are as follows:

[0018] 1. This invention sets the rear brush into multiple spiral cleaning brushes with the same direction of rotation, so that when the rear brush sweeps dust and other debris into the sweeper, it will gather the dust to one side, making it easier for dust, sand and other debris to be cleaned more thoroughly into the sweeper, thus improving the cleaning effect.

[0019] 2. This invention utilizes the cooperation between the spiral cleaning brush and the scraper to scrape off the debris stuck on the cleaning brush. The scraped debris falls onto the spiral surface of the next spiral cleaning brush, where it slides along the spiral surface to the cleaning brush side. The rotating spiral cleaning brush generates centrifugal force, which throws the debris on the spiral surface into the debris chamber, thus completing the cleaning of the debris on the cleaning brush.

[0020] 3. When the sweeper is moved slowly by the user and the sweeping brush rotates at a low speed, the resulting centrifugal force is insufficient to throw the garbage scraped off the spiral sweeping brush into the garbage chamber. Instead, the garbage will slide down the spiral surface and gather to one side, making it easier for the low-speed spiral sweeping brush to clean up the garbage. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 This is a schematic diagram of the bottom structure of the housing of the present invention;

[0024] Figure 3 This is a schematic diagram of the top cover opening according to the present invention;

[0025] Figure 4 This is a schematic diagram of the spiral cleaning brush connection of the present invention;

[0026] Figure 5 This is a schematic diagram showing the distribution of the scraper and spiral cleaning brush of the present invention;

[0027] Figure 6 This is a schematic diagram illustrating the movement of the spiral cleaning brush of the present invention as it sweeps garbage into the sweeper.

[0028] Figure 7 This is a schematic diagram of the cleaning motion after the spiral cleaning brush scrapes away the garbage according to the present invention.

[0029] Explanation of reference numerals in the attached figures:

[0030] 1. Housing; 2. Front wheel; 3. Rear wheel; 4. Waste chamber; 5. Drive shaft; 6. Spiral cleaning brush; 7. Transmission assembly; 701. External gear ring; 702. Driven wheel; 8. Scraper; 9. Waste box; 10. Top cover; 11. Stop lever; 12. Rubber sheet; 13. Connecting shaft; 14. Disc brush; 15. Drive wheel; 16. Drive belt; 17. Positioning plate; 18. Knob; 19. Connecting plate; 20. Telescopic handle. Detailed Implementation

[0031] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0032] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0033] This invention provides, for example Figure 1-7 The image shows a non-powered sweeper, such as Figures 1-3 As shown, the device includes a housing 1. A front wheel 2 is mounted on the head of the bottom surface of the housing 1, and two symmetrically distributed rear wheels 3 are rotatably mounted on the tail. A top cover 10 is detachably mounted on the top of the housing 1, and a waste container 9 is detachably mounted inside the housing 1. The waste container 9 has openings at the top and on the side near the rear wheels 3. A stop lever 11 is fixedly mounted inside the waste container 9. The cross-section of the stop lever 11 is triangular, and the side of the stop lever 11 near the rear wheels 3 forms an obtuse angle with the bottom surface of the inner cavity of the waste container 9. The top cover 10, the waste container 9, and the housing 1 are all connected. The space between them forms a garbage chamber 4 to hold the garbage. Multiple arrayed rubber sheets 12 are fixedly installed at the rear of the casing 1. One end of each rubber sheet 12 droops to the ground, while the other end faces the garbage chamber 4. When garbage is swept from the rear wheel 3 towards the garbage chamber 4, it flows along the inclined rubber sheets 12 from the ground into the casing 1. Due to inertia, it passes through the inclined surface of the baffle 11 and enters the garbage box 9, making it less likely to leak out of the casing 1 in the opposite direction. The garbage box 9 can be removed and the garbage emptied by opening the top cover 10. A positioning plate 17 is fixedly installed on the casing 1. A knob 18 is threaded onto the positioning plate 17. A connecting plate 19 is provided between the knob 18 and the positioning plate 17. A telescopic handle 20 is installed on the connecting plate 19. Loosening the knob 18 adjusts the relative rotation of the positioning plate 17 and the connecting plate 19, while tightening it adjusts the angle of the telescopic handle 20.

[0034] like Figures 3-5 As shown, a drive shaft 5 is rotatably mounted at the tail of the housing 1. Three spiral cleaning brushes 6, arranged in a circular array and rotating in the same direction, are fixed on the drive shaft 5. The spiral cleaning brushes 6 have a thread helix angle of 45°-60° and are bristle brushes with a spiral surface. Multiple linearly arrayed scrapers 8 are fixedly mounted on the top of the spiral cleaning brushes 6 and inside the housing 1. When the spiral cleaning brushes 6 pass over the scrapers 8, most of the debris adhering to or entrained on the spiral cleaning brushes 6 is blocked by the scrapers 8 and does not move with the spiral cleaning brushes 6 to the area between the tail of the housing 1 and the drive shaft 5. The debris blocked by the scrapers 8 falls onto the spiral surface of the next spiral cleaning brush 6. Figure 5As shown, because the helix angle of the thread is 45°-60°, the debris will slide along the spiral surface to one side of the housing 1. Since the spiral cleaning brush 6 generates centrifugal force when rotating, therefore... Figure 7 As shown, the garbage is thrown into the garbage chamber 4 under centrifugal force. Furthermore, because the spiral cleaning brush 6 is spiral-shaped, it is in constant contact with the bottom surface when sweeping the garbage, resulting in uniform resistance. Meanwhile, garbage that is not swept into the casing 1 along the rubber sheet 12 will gradually gather to one side along the spiral cleaning brush 6. As the volume of the gathered garbage increases, the contact height between the garbage and the brush of the spiral cleaning brush 6 increases, making it easier for the garbage at the top of the small pile to be swept into the garbage chamber 4 by the spiral cleaning brush 6.

[0035] like Figures 3-5 As shown, two symmetrically distributed connecting shafts 13 are installed at the head of the frame. A disc brush 14 is rotatably mounted on the bottom of the connecting shaft 13. Both the disc brush 14 and the rear wheel 3 are equipped with drive wheels 15. A drive belt 16 is mounted on both drive wheels 15. An external gear ring 701 is fixedly mounted on the rear wheel 3. A driven wheel 702, meshing with the external gear ring 701, is fixedly mounted at the end of the drive shaft 5. The external gear ring 701 and the driven wheel 702 constitute the transmission assembly 7 that drives the drive shaft 5 to rotate. The drive shaft 5 and the rear wheel 3 rotate in opposite directions. The transmission assembly 7 can also be replaced with a gear, toothed belt, chain, sprocket, or other transmission mechanism, as long as the rotation directions are opposite. When the housing 1 is pushed forward, the rotation of the rear wheel 3 will drive the external gear ring 701 and the drive wheels 15 to rotate. The drive wheels 15 and the drive belt 16 engage to drive the disc brush 14 to sweep the debris into the area below the housing 1. The external gear ring 701 will drive the drive shaft 5 to rotate through the driven wheel 702, thereby driving the spiral cleaning mechanism to rotate. Figure 6 As shown, the length of the spiral cleaning brush 6 is greater than the distance between the drive shaft 5 and the ground. This not only increases the contact area with the garbage and thus increases the friction, but also, when the spiral cleaning brush 6 separates from the ground, it has a spiral bending and lifting motion due to its own elasticity, which applies a thrust to the garbage at an angle upward. This not only makes it easier to throw the garbage on the spiral surface into the garbage chamber 4, but also applies a thrust to the garbage on the ground.

[0036] When using this sweeper, the user first adjusts the tilt angle and length of the telescopic handle 20, and then pushes the sweeper to move in a straight line. When the sweeper moves forward, the disc brush 14 will sweep the garbage into the bottom of the casing 1, and then the spiral cleaning brush 6 will sweep the garbage at the bottom of the casing 1 into the garbage chamber 4. Some of the garbage that is not swept into the casing will gradually converge along the spiral cleaning brush 6 to one side of the casing 1, making it easier to be swept into the garbage chamber 4. Some of the garbage that is attached, adhered, or stuck to the spiral cleaning brush 6 will be scraped off by the scraper 8 onto the spiral surface of the next spiral cleaning brush 6, and then thrown into the garbage chamber 4 by the spiral cleaning brush 6.

[0037] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), installation arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application.

Claims

1. A non-powered sweeper, comprising a housing (1), a front wheel (2) mounted on the head of the housing (1), and a rear wheel (3) mounted on the tail of the housing (1), characterized in that: The housing (1) has a garbage chamber (4) that opens to the tail. A drive shaft (5) is rotatably mounted at the tail of the housing (1). Multiple spiral cleaning brushes (6) with the same direction of rotation and arranged in a circular array are mounted on the drive shaft (5). The surface of the spiral cleaning brushes (6) forms a spiral surface. A transmission assembly (7) that drives the drive shaft (5) and the rear wheel (3) to rotate in opposite directions is installed between the end of the drive shaft (5) and the rear wheel (3). A scraper (8) arranged in a linear array is also installed in the housing (1) at the top of the drive shaft (5). The spiral cleaning brushes (6) and the scraper (8) partially overlap. The rotating spiral cleaning brush (6) sweeps the garbage into the garbage chamber (4). At the same time, the garbage stuck on the spiral cleaning brush (6) will be scraped off by the scraper (8) onto the spiral surface of the next spiral cleaning brush (6). The centrifugal force generated when the spiral cleaning brush (6) rotates throws the garbage on the spiral surface into the garbage chamber (4).

2. The non-powered sweeper according to claim 1, characterized in that: The spiral cleaning brush (6) has three parts, and the three spiral cleaning brushes (6) are mounted in a circumferential array on the outer circumferential surface of the drive shaft (5).

3. The non-powered sweeper according to claim 1, characterized in that: The spiral cleaning brush (6) has a thread helix angle of 45°-60°.

4. The non-powered sweeper according to claim 1, characterized in that: The transmission assembly (7) includes an external gear ring (701) fixedly installed inside the rear wheel (3) and a driven wheel (702) fixedly installed at the end of the transmission shaft (5), the driven wheel (702) meshing with the external gear ring (701).

5. The non-powered sweeper according to claim 1, characterized in that: A garbage bin (9) is detachably installed inside the housing (1). The top of the garbage bin (9) and the side near the rear wheel (3) are both open. A top cover (10) is detachably installed on the top of the housing (1). The space between the top cover (10), the garbage bin (9) and the housing (1) forms the garbage chamber (4).

6. The non-powered sweeper according to claim 5, characterized in that: A stop bar (11) is fixedly installed in the inner cavity of the garbage box (9) on the side near the rear wheel (3). The angle between the side of the stop bar (11) near the rear wheel (3) and the bottom surface of the inner cavity of the garbage box (9) is an obtuse angle.

7. The non-powered sweeper according to claim 1, characterized in that: A rubber sheet (12) is fixedly installed at the tail of the casing (1). One end of the rubber sheet (12) is in contact with the ground, and the other end of the rubber sheet (12) faces the garbage chamber (4).

8. The non-powered sweeper according to claim 1, characterized in that: The head of the frame is equipped with two symmetrically distributed connecting shafts (13). A disc brush (14) is rotatably mounted on the bottom of the connecting shaft (13). A transmission wheel (15) is mounted on both the disc brush (14) and the rear wheel (3). A transmission belt (16) is mounted on the two transmission wheels (15).

9. The non-powered sweeper according to claim 1, characterized in that: A positioning plate (17) is fixedly installed on the frame. A knob (18) is threaded onto the positioning plate (17). A connecting plate (19) is provided between the knob (18) and the positioning plate (17). A telescopic handle (20) is installed inside the connecting plate (19).

10. The non-powered sweeper according to claim 8, characterized in that: Both the disc brush (14) and the spiral cleaning brush (6) are bristle brushes, and the length of the spiral cleaning brush (6) is greater than the distance between the drive shaft (5) and the ground.

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