Manual and automatic cleaning mechanism and leaf sweeper

Abstract

The present invention discloses a manual-automatic cleaning mechanism, including a rotatable cleaning component, a driving component and a walking wheel component. The end of the cleaning component has a transmission shaft, and a clutch component is connected to the transmission shaft. The clutch component includes a first gear connected to the driving component and a second gear connected to the walking wheel component. A clutch plate is provided in the transmission shaft. The transmission shaft passes through the first gear and enters the second gear so that the clutch plate is correspondingly located in the first gear and the second gear. The transmission shaft is connected to the first gear or the second gear through the clutch plate to selectively enter the electric cleaning mode and the manual cleaning mode. A leaf sweeper, the frame of which is equipped with the above-mentioned cleaning mechanism. The manual-automatic cleaning mechanism and the leaf sweeper of the present invention can electrically drive the cleaning component to clean by a driving device, and can also drive the cleaning component to clean by the walking wheel assembly when manually pushed, thereby realizing manual and electric control methods.

Description

Technical Field

[0001] The invention relates to the field of cleaning equipment, and in particular to a manual and automatic cleaning mechanism and a leaf sweeper. Background Art

[0002] With the development of cities and the progress of society, urban sanitation equipment has also developed greatly. Many hand-pushed sweepers suitable for public places such as sidewalks, parks, factory areas, stations and docks, squares, residential areas, hospitals, etc. have appeared on the market.

[0003] However, in the existing hand-pushed sweeper, the wheels drive the rotation of the cleaning brush. Since the sweeper works under the push of manpower, the travel speed of the sweeper is the same as the speed of the person pushing it. The walking speed of the operator determines the cleaning effect. If the operator walks fast, the brush rotates at a high speed, and the operator will be more tired. If the operator walks slowly, the brush rotates slowly and the cleaning effect will be poor. It is difficult to clean the ground, so the sweeper needs to be pushed back and forth for multiple cleanings, which wastes manpower and time. Summary of the invention

[0004] The main technical problem solved by the present invention is to provide a manual and automatic cleaning mechanism and a leaf sweeper, which can electrically drive the cleaning component to clean through a driving device, and can also drive the cleaning component to clean through a walking wheel component when manually pushed, thereby realizing manual and electric control methods.

[0005] In order to solve the above technical problems, a technical solution adopted by the present invention is: to provide a manual-automatic cleaning mechanism, including a rotatable cleaning component, a driving component connected to the cleaning component by power transmission, and a walking wheel assembly, the end of the cleaning component has a transmission shaft, and a clutch component is connected to the transmission shaft, and the clutch component includes a first gear connected to the driving component and a second gear connected to the walking wheel assembly by power transmission, and a clutch plate is provided in the transmission shaft, and the transmission shaft passes through the first gear and enters the second gear so that the clutch plate is correspondingly located in the first gear and the second gear, and the transmission shaft is connected to the first gear or the second gear by power transmission through the clutch plate, so as to selectively enter the electric cleaning mode and the manual cleaning mode.

[0006] In a preferred embodiment of the present invention, a plurality of inwardly protruding clutch teeth are evenly spaced along the circumferential direction within the first gear and the second gear, and the clutch plate is movably arranged within the transmission shaft. Rotation of the first gear or the second gear causes the clutch teeth to rotate and push the clutch plate, thereby causing the clutch plate to drive the transmission shaft to rotate.

[0007] In a preferred embodiment of the present invention, the clutch tooth has a push surface A and a push surface B, and the clutch plate has a push surface C and a push surface D. The push surface A contacts with the push surface C so that the clutch tooth pushes the clutch plate to rotate, and the push surface B contacts with the push surface D so that the clutch tooth pushes the clutch plate to move in the transmission shaft.

[0008] In a preferred embodiment of the present invention, a sliding groove is provided on the transmission shaft, the clutch plate is movably arranged in the sliding groove, and the push surface B contacts the push surface D to push the clutch plate to slide back and forth in the sliding groove.

[0009] In a preferred embodiment of the present invention, a spacing is set between the transmission shaft and the first gear and the second gear, and the outermost ends of the push surface B and the push surface D are in contact so that the clutch plate is pushed to the outermost side.

[0010] In a preferred embodiment of the present invention, the push surface A and the push surface C are planar push surfaces, the push surface B is an arc-shaped push surface, and the push surface D is an inclined push surface.

[0011] In a preferred embodiment of the present invention, the first gear pushes the clutch plate to rotate so that the other clutch plate slides back and forth in the second gear, and the second gear pushes the clutch plate to rotate so that the other clutch plate slides back and forth in the first gear.

[0012] In a preferred embodiment of the present invention, the driving assembly is started and drives the first gear to rotate. The first gear pushes the push surface C of the clutch plate through the push surface A so that the transmission shaft drives the cleaning assembly to rotate. The push surface B of the other clutch plate contacts the push surface D to make it slide in the second gear. At this time, it is the electric cleaning mode.

[0013] In a preferred embodiment of the present invention, the driving assembly is closed, the walking wheel assembly rotates, the second gear pushes the push surface C of the clutch plate through the push surface A so that the transmission shaft drives the cleaning assembly to rotate, and the push surface B of the other clutch plate contacts the push surface D to make it slide in the first gear. This is the manual cleaning mode.

[0014] In order to solve the above technical problem, another technical solution adopted by the present invention is: to provide a leaf sweeper, including a frame, on which the above manual and automatic cleaning mechanism is installed.

[0015] The beneficial effects of the present invention are as follows: the manual-automatic cleaning mechanism and leaf sweeper of the present invention transmit power to the transmission shaft of the cleaning component through the driving component, so that the cleaning component can rotate and push the cleaning mechanism forward at the same time, thereby achieving rapid cleaning, avoiding the operator from being in a fast walking state all the time, and improving the cleaning effect.

[0016] The manual-automatic cleaning mechanism and leaf sweeper of the present invention can, in manual mode, drive the driving wheel assembly to transmit power to the transmission shaft of the cleaning assembly, and the operator pushes the cleaning mechanism forward to realize rotational cleaning of the cleaning assembly. The cleaning mechanism can be switched between electric mode and manual mode.

[0017] The manual-automatic cleaning mechanism and leaf sweeper of the present invention realize power transmission between the drive assembly, the travel wheel assembly and the transmission shaft through the clutch component and the clutch plate; in the electric mode, the drive assembly drives the transmission shaft to rotate without interfering with the normal rotation of the travel wheel assembly; in the manual mode, the travel wheel assembly drives the transmission shaft to rotate without transmitting power to the drive assembly, and the transmission structure is effectively optimized through the structural design of the clutch component and the clutch plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. 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 work, among which:

[0019] Figure 1 It is a structural schematic diagram of a preferred embodiment of the manual and automatic cleaning mechanism of the present invention;

[0020] Figure 2 yes Figure 1 Schematic diagram of the local structure;

[0021] Figure 3 It is a three-dimensional structural schematic diagram of the transmission shaft;

[0022] Figure 4 is a schematic diagram of the three-dimensional structure of the second gear;

[0023] Figure 5 is a schematic diagram of the connection state between the first gear and the transmission shaft;

[0024] Figure 6 It is a partial structural diagram of the transmission shaft and the driving assembly;

[0025] Figure 7 It is a schematic diagram of the structure of a leaf sweeper;

[0026] The markings of the components in the accompanying drawings are as follows: 1. Cleaning assembly, 11. Transmission shaft, 12. Clutch plate, 13. Sliding groove, 2. Driving assembly, 3. Travel wheel assembly, 4. Clutch component, 41. First gear, 42. Second gear, 43. Clutch tooth, push surface A, push surface B, push surface C, push surface D. DETAILED DESCRIPTION

[0027] The technical scheme in the embodiment of the present invention will be described clearly and completely below. The structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification, so that people familiar with this technology can understand and read them, and are not used to limit the limiting conditions that the present invention can implement, so they have no substantial technical significance. Any modification of the structure, change of the proportional relationship, or adjustment of the size should still fall within the scope that the technical content disclosed by the present invention can cover without affecting the effects that the present invention can produce and the purposes that can be achieved. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and so on quoted in this specification are only for the convenience of narration, and are not used to limit the scope that can be implemented. The change or adjustment of the relative relationship should also be regarded as the scope that the present invention can implement without substantially changing the technical content.

[0028] See also Figures 1 to 4 A manual and automatic cleaning mechanism includes a rotatable cleaning component 1, a driving component 2 connected to the cleaning component 1 by power transmission, and a walking wheel component 3. The end of the cleaning component 1 has a transmission shaft 11. A clutch component 4 is connected to the transmission shaft 11. The driving component 2 is composed of a motor and a gear reduction box. The driving component includes a driving gear, which is meshed with the output gear of the motor. The middle part of the driving gear is connected to a pinion through a bearing. The pinion is meshed and connected to the transmission belt, and the other side of the transmission belt is meshed with the second gear. The structure of the gear reduction box is not limited to the structure shown in the figure, and other gear reduction boxes can also be used. The cleaning component 1 includes a cleaning brush main body, and a transmission shaft 11 is installed at both ends of the cleaning brush main body. The walking wheel assembly 3 includes two symmetrical walking wheels, and both walking wheels are connected to the transmission shaft 11 through the clutch component 4.

[0029] The clutch component 4 includes a first gear 41 connected to the driving assembly 2 and a second gear connected to the running wheel assembly 3. A plurality of inwardly protruding clutch teeth 43 are evenly arranged in the circumferential direction in the first gear 41 and the second gear 42. A clutch plate 12 is arranged in the transmission shaft 11, and a sliding groove 13 is provided on the transmission shaft 11. The clutch plate 12 is movably arranged in the sliding groove 13. There is a spacing arrangement between the transmission shaft 11 and the first gear 41 and the second gear 42. There is a gap between the transmission shaft 11 and the first gear 41 and the second gear 42. This gap serves as a movement space for the clutch plate 12 in the first gear 41 and the second gear 42, so that the clutch plate 12 slides in the sliding groove 13 when being pushed by the clutch teeth 43. When the clutch plate 12 is pushed to the limit position, there is at least a certain gap between the clutch plate 12 and the first gear 41 and the second gear 42 to avoid mutual interference and friction between the two. The second gear 42 is meshed with the gear in the running wheel assembly 3, and the outer side of the second gear 42 is rotatably connected to the bearing. The first gear 41 is meshed with the output end of the gear reduction box.

[0030] The clutch plate 12 is movably arranged in the transmission shaft 11. The first gear 41 or the second gear 42 rotates to rotate the clutch tooth 43 and push the clutch plate 12, so that the clutch plate 12 drives the transmission shaft 11 to rotate. The clutch tooth 43 has a push surface A and a push surface B, and the clutch plate 12 has a push surface C and a push surface D. The push surface A contacts the push surface C so that the clutch tooth 43 pushes the clutch plate 12 to rotate, and the push surface B contacts the push surface D so that the clutch tooth 43 pushes the clutch plate 12 to move in the transmission shaft 11. The push surface B contacts the push surface D to push the clutch plate 12 to slide back and forth in the sliding groove 13. The outermost end parts of the push surface B and the push surface D contact so that the clutch plate 12 is pushed to the outermost side. The push surface A and the push surface C are plane push surfaces, the push surface B is an arc push surface, and the push surface D is an inclined push surface. Through the cooperation of the clutch plate 12 and the clutch tooth 43, the power transmission to the transmission shaft 11 is realized. The number of the clutch teeth 43 is three, and the clutch plate 12 is a centrally symmetrical structure.

[0031] See also Figure 5 and Figure 6 , when the first gear 41 rotates counterclockwise relative to the transmission shaft 11, the push surface A rotates close to the push surface C. After the push surface A and the push surface C come into contact, since both are planar push surfaces, the two will fit together, and the push surface C is pushed to start to rotate synchronously. At this time, the clutch plate 12 will not slide in the sliding groove 13, and the transmission shaft 11 is synchronously driven to rotate by the clutch plate 12, and the cleaning component 1 starts to rotate. In this case, since the transmission shaft 11 starts to rotate, the other clutch plate 12 on the transmission shaft 11 also starts to rotate relative to the second gear 42. At this time, the rotation direction of the clutch plate 12 is counterclockwise. Then when the clutch plate 12 rotates, its push surface D will approach the push surface B. Since the arc-shaped push surface B and the inclined push surface D will not be stuck together, at this time, under the action of the push surface B, the push surface D is pushed so that the clutch plate 12 is pushed along the sliding groove 13, and the two ends of the clutch plate 12 and all the clutch teeth 43 of the second gear repeat the above movement. During the rotation process, the push surface D of the clutch plate 12 is always in contact with the push surface B, so the power of the drive assembly 2 will not be transmitted to the running wheel through the transmission shaft 11 and the clutch plate 12. In this case, a clutch plate 12 and a gear achieve power transmission, and there is no power transmission between the other clutch plate 12 and another gear, and it will only slide back and forth in the sliding groove 13. Conversely, the second gear 42 rotates counterclockwise in the same way (the cross-sectional view of the connection part of the second gear 42 and the transmission shaft 11 is the same as Figure 5 ). That is, when any clutch plate 12 receives power transmission, the other clutch plate 12 repeats the sliding motion and does not transmit any power.

[0032] Therefore, the transmission shaft 11 passes through the first gear 41 and enters the second gear 42 so that the clutch plate 12 is correspondingly located in the first gear 41 and the second gear 42. The transmission shaft 11 is connected to the first gear 41 or the second gear 42 through the clutch plate 12 for power transmission, thereby selectively entering the electric cleaning mode and the manual cleaning mode.

[0033] When the leaf sweeper is in the electric cleaning mode, the driving assembly 2 starts and drives the first gear 41 to rotate. The first gear 41 pushes the push surface C of the clutch plate 12 through the push surface A to make the transmission shaft 11 drive the cleaning assembly 1 to rotate. The push surface B of the other clutch plate 12 contacts the push surface D to make it slide in the second gear 42. At this time, the walking wheel can be pushed. During the pushing process, due to the slow rotation speed of the walking wheel, the rotation speed of the second gear 42 is less than that of the first gear 41. In this case, the second gear 42 can be regarded as being stationary relative to the first gear 41. The counterclockwise rotation of the second gear 42 will not cause the push surface A of the clutch tooth 43 on the second gear 42 to contact the push surface C of the clutch plate 12. Only the first gear 41 provides power to the transmission shaft 11. When the cleaning assembly 1 rotates freely, the walking wheel assembly 3 can move forward normally (counterclockwise rotation), and the leaf sweeper can move forward. At this time, electric leaf sweeping is achieved.

[0034] When the leaf sweeper is in manual cleaning mode, the drive assembly 2 is closed, the travel wheel assembly 3 rotates, and the second gear 42 pushes the push surface C of the clutch plate 12 through the push surface A to make the transmission shaft 11 drive the cleaning assembly 1 to rotate. The push surface B of the other clutch plate 12 contacts the push surface D to make it slide in the first gear 41. This is the manual cleaning mode. The first gear 41 is stationary at this time, and the clutch plate 12 on the transmission shaft 11 rotates counterclockwise relative to the first gear 41. The clutch plate 12 will slide back and forth in the sliding groove 13 due to the action of the push surface B. Therefore, the leaf sweeper is pushed forward, and the travel wheel assembly 3 drives the cleaning assembly 1 to rotate while moving forward. At this time, the speed of the cleaning assembly 1 is determined by the travel speed. At the same time, the rotation of the travel wheel will not transmit power to the drive assembly 2, so that manual leaf sweeping is achieved.

[0035] In the electric cleaning mode and the manual cleaning mode, the transmission shaft 11 obtains a unique power input. Due to the existence of the clutch plate 12, the power inputs will not interfere with each other. In the electric mode, the driving component determines the rotation speed of the cleaning component 1. It does not matter whether the walking wheel component 3 is stationary or moving. At this time, the cleaning component 1 is always in a relatively ideal rotation speed state, so that the operator does not have to walk fast all the time, and the cleaning effect is always in the best state. By driving the brush after deceleration through the gear box, the brush can obtain a larger transmission torque and achieve a better cleaning effect. In the absence of power (manual mode), the walking wheel component 3 is pushed to rotate, and the cleaning component 1 will also rotate synchronously, thereby realizing the cleaning function, thereby realizing manual and automatic cleaning.

[0036] The gear reducer can also be reasonably replaced with existing conventional reduction components such as planetary gear reducers or belt reducers. A lithium battery is used as a power source to power the motor. At the same time, the gear reducer can be omitted, and a low-speed, high-torque motor can be used to directly drive the drive shaft to achieve electric drive.

[0037] Figure 7 The utility model is a leaf sweeper, wherein the cleaning assembly is located in a cleaning head of the leaf sweeper, the travel wheel assembly is located below the cleaning head, and the motor and the gear reduction box are located in a casing of the leaf sweeper.

[0038] Different from the prior art, the manual-automatic cleaning mechanism and leaf sweeper of the present invention can electrically drive the cleaning component to clean through a driving device, and can also drive the cleaning component to clean through a walking wheel assembly when manually pushed, thus realizing manual and electric control methods.

[0039] The present invention and its embodiments are described schematically above, and the description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. Therefore, if a person skilled in the art is inspired by it and designs a structural method and an embodiment similar to the technical solution without creativity without departing from the purpose of the invention, they shall all fall within the protection scope of the present invention.

Claims

1. A manual and automatic cleaning mechanism, comprising a rotatable cleaning assembly, a driving assembly connected to the cleaning assembly by power transmission, and a walking wheel assembly, characterized in that: The end of the cleaning assembly is provided with a transmission shaft, and a clutch component is connected to the transmission shaft. The clutch component includes a first gear transmission-connected to the driving assembly and a second gear transmission-connected to the walking wheel assembly. A clutch plate is provided in the transmission shaft, and the transmission shaft passes through the first gear and enters the second gear so that the clutch plate is correspondingly located in the first gear and the second gear. The transmission shaft is connected to the first gear or the second gear through the clutch plate for power transmission so as to selectively enter the electric cleaning mode and the manual cleaning mode. The first gear pushes the clutch plate to rotate so that the other clutch plate slides back and forth in the second gear, and the second gear pushes the clutch plate to rotate so that the other clutch plate slides back and forth in the first gear.

2. The manual and automatic cleaning mechanism according to claim 1, characterized in that: A plurality of inwardly protruding clutch teeth are evenly spaced in the circumferential direction inside the first gear and the second gear, and the clutch plate is movably arranged in the transmission shaft. The rotation of the first gear or the second gear causes the clutch teeth to rotate and push the clutch plate, thereby causing the clutch plate to drive the transmission shaft to rotate.

3. The manual and automatic cleaning mechanism according to claim 2, characterized in that: The clutch tooth has a push surface A and a push surface B, and the clutch plate has a push surface C and a push surface D. The push surface A contacts the push surface C so that the clutch tooth pushes the clutch plate to rotate, and the push surface B contacts the push surface D so that the clutch tooth pushes the clutch plate to move in the transmission shaft.

4. The manual and automatic cleaning mechanism according to claim 3, characterized in that: The transmission shaft is provided with a sliding groove, the clutch plate is movably arranged in the sliding groove, and the push surface B contacts the push surface D to push the clutch plate to slide back and forth in the sliding groove.

5. The manual and automatic cleaning mechanism according to claim 4, characterized in that: The transmission shaft is spaced apart from the first gear and the second gear, and the outermost ends of the push surface B and the push surface D are in contact with each other so that the clutch plate is pushed to the outermost side.

6. The manual and automatic cleaning mechanism according to claim 5, characterized in that: The push surface A and the push surface C are planar push surfaces, the push surface B is an arc-shaped push surface, and the push surface D is an inclined push surface.

7. The manual and automatic cleaning mechanism according to claim 1, characterized in that: The driving assembly starts and drives the first gear to rotate. The first gear pushes the push surface C of the clutch plate through the push surface A, so that the transmission shaft drives the cleaning assembly to rotate. The push surface B of the other clutch plate contacts the push surface D to make it slide in the second gear. At this time, it is the electric cleaning mode.

8. The manual and automatic cleaning mechanism according to claim 1, characterized in that: The driving assembly is closed, the walking wheel assembly rotates, the second gear pushes the push surface C of the clutch plate through the push surface A to make the transmission shaft drive the cleaning assembly to rotate, and the push surface B of the other clutch plate contacts the push surface D to make it slide in the first gear. This is the manual cleaning mode.

9. A leaf sweeper, comprising a frame, characterized in that: The frame is equipped with a manual-automatic cleaning mechanism as described in any one of claims 1-8.

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