A wheel-driven lawn mower

Abstract

The present invention provides a wheel-driven lawn mower, which belongs to the technical field of unpowered lawn mowers. It includes a tooth head wheel, a mounting frame, an eccentric shaft of an umbrella tooth head, a toothed cutter mounting member, a shield, an upper toothed cutter and a lower toothed cutter; the two ends of the mounting frame are respectively connected with a tooth head wheel and an eccentric shaft of an umbrella tooth head, and the second umbrella teeth on the eccentric shaft of the umbrella tooth head are meshed with the first umbrella teeth on the tooth head wheel; the lower part of the two ends of the mounting frame is respectively fixedly connected with a toothed cutter mounting member; the two ends of the upper toothed cutter and the lower toothed cutter are movably inserted between the two toothed cutter mounting members, and the lower end of an eccentric shaft of an umbrella tooth head is inserted into the first long hole at one end of the upper toothed cutter, and the lower part of the eccentric shaft of the other umbrella tooth head is inserted into the second long hole at one end of the lower toothed cutter after passing through the first long hole at the other end of the upper toothed cutter, and the shield is connected to the two ends of the inner side of the mounting frame. The present invention has a simple structure, low cost, smaller size and more reliable operation.

Description

Technical Field

[0001] The invention belongs to the technical field of unpowered lawn mowers, and in particular relates to a walking wheel driven lawn mower. Background Art

[0002] Currently, most lawnmowers require their own power unit or are connected to the vehicle's power mechanism via a transmission component, resulting in high costs and complex configurations or connections. While vehicles can pull plowshares to remove grass, they are not suitable for mowing.

[0003] Patent CN206314211U describes a push-type, non-powered lawnmower that uses two independent reciprocating blades driven by a motor. This patented technology eliminates the need for a built-in motor or other drive system, resulting in greater energy efficiency and quieter operation. The mowing process is less affected by turns, offering better reliability and higher work efficiency. However, it is also larger in size, has more transmission components, a more complex structure, higher cost, and less reliable operation. Summary of the Invention

[0004] The object of the present invention is to provide a wheel-driven lawn mower with a simple structure, low cost and smaller size in order to solve the above problems.

[0005] In order to achieve the above object, the present invention has the following technical solutions:

[0006] The present invention provides a wheel-driven lawn mower, comprising a tooth head wheel, a mounting frame, an eccentric shaft of an umbrella tooth head, a tooth cutter mounting member, a guard, an upper tooth cutter and a lower tooth cutter;

[0007] The mounting frame has a toothed wheel and a beveled eccentric shaft connected to each end via bearings. The second beveled tooth on the beveled eccentric shaft meshes with the first beveled tooth on the toothed wheel. A toothed blade mounting component is fixedly connected to the lower part of each end of the mounting frame. The upper and lower toothed blades are movably inserted between the two toothed blade mounting components. The lower end of one beveled eccentric shaft is inserted into the first elongated hole at one end of the upper toothed blade, and the lower part of the other beveled eccentric shaft passes through the first elongated hole at the other end of the upper toothed blade and is inserted into the second elongated hole at one end of the lower toothed blade. The protective cover is connected to both ends of the inner side of the mounting frame to prevent weeds and other foreign objects from entering between the first and second beveled teeth and to prevent weeds and other foreign objects from getting tangled on the beveled eccentric shaft.

[0008] Preferably, a connecting frame is further provided, one end or the middle of the connecting frame is fixedly connected to the mounting bracket.

[0009] Preferably, reinforcing ribs are further provided, and the reinforcing ribs are provided on the upper surface of the upper perforated cutter and on the lower surface of the lower perforated cutter.

[0010] Preferably, a universal wheel is further provided, and the universal wheel is connected to one end of the connecting frame.

[0011] Due to the adoption of the above technical solutions, the advantages of this invention are:

[0012] 1. The two toothed wheels of this invention can drive the moving tooth cutter simultaneously or independently, resulting in higher operational reliability;

[0013] 2. This invention uses a grass-cutting blade positioned below the axle, resulting in a smaller device size;

[0014] 3. This invention drives the bevel gear head eccentric shaft and then the gear cutter solely through the tooth head wheel, resulting in fewer transmission links, higher driving efficiency, and greater energy savings;

[0015] 4. When the present invention is used, it only needs to be connected to a driving device such as a vehicle through a connecting frame, or it can be pushed by manpower to cut grass, which is easy to operate. Attached Figure Description

[0016] Figure 1 This is a side view of an example 1 of the overall structure of this invention;

[0017] Figure 2 This invention Figure 1 A schematic diagram of direction A;

[0018] Figure 3 This invention Figure 2 Schematic top view of

[0019] Figure 4 Schematic diagram of a tooth head running wheel according to an embodiment of the present invention;

[0020] Figure 5 This is a schematic diagram of the eccentric shaft of the bevel gear head according to an embodiment of the present invention;

[0021] Figure 6 This is a schematic diagram of one end of the upper and lower toothed cutters of an embodiment of the present invention being inserted into a toothed cutter mounting component;

[0022] Figure 7 This is a schematic diagram of the toothed cutter mounting component according to an embodiment of the present invention;

[0023] Figure 8 This is a schematic diagram of the upper toothed cutter of the present invention;

[0024] Figure 9 Schematic diagram of the lower tooth cutter of the present invention;

[0025] Figure 10 This is a top view schematic diagram of the fixed-tooth cutter according to an embodiment of the present invention;

[0026] Figure 11 This is a side view of an example 2 of the overall structure of this invention;

[0027] Figure 12 This invention Figure 11A top-down view;

[0028] Figure 13 is a side view schematic diagram of the connection between the wheel-driven lawn mower of the present invention and the vehicle chassis;

[0029] Figure 14 This is a side view schematic diagram of the overall structure example 1 of the present invention, which is connected to the vehicle via a connecting frame.

[0030] In the diagram: 1. Teeth head wheel; 11. Wheel; 12. Axle; 13. First bevel tooth; 2. Mounting bracket; 3. Eccentric shaft of bevel tooth head; 31. Eccentric shaft; 32. Second bevel tooth; 4. Bearing; 5. Tooth blade mounting component; 51. Tooth blade insertion hole; 52. Screw hole; 6. Screw; 7. Upper tooth blade; 71. Upper tooth blade body; 72. First elongated hole; 8. Lower tooth blade; 81. Lower tooth blade body; 82. Second elongated hole; 9. Connecting bracket; 10. Caster wheel; 20. Protective cover; 100. Wheel-driven lawnmower; 200. Vehicle. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0032] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort shall fall within the scope of protection of the present invention.

[0033] In the description of the present invention, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the product of the invention is usually placed when in use. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be understood as a limitation on the present invention.

[0034] It should be noted that, in the absence of conflict, the features in the embodiments of the present invention may be combined with each other.

[0035] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 、 Figure 9 、 Figure 10 、 Figure 11 、 Figure 12 The present invention discloses a wheel-driven lawnmower 100, which includes a toothed wheel 1, a mounting frame 2, an umbrella toothed eccentric shaft 3, a toothed blade mounting component 5, a protective cover 20, an upper toothed blade 7, and a lower toothed blade 8.

[0036] The toothed wheel 1 is formed by fixing a first bevel tooth 13 and a wheel 11 to both ends of the axle 12 respectively; the bevel tooth eccentric shaft 3 is formed by fixing a second bevel tooth 32 to one end of the eccentric shaft 31; the two ends of the mounting bracket 2 are each connected to a toothed wheel 1 and a bevel tooth eccentric shaft 3 via bearings 4, wherein the second bevel tooth 32 on the bevel tooth eccentric shaft 3 meshes with the first bevel tooth 13 on the toothed wheel 1; the lower parts of both ends of the mounting bracket 2 are each fixedly connected to a toothed cutter mounting piece 5 by screws 6 or rivets, etc.; the upper toothed cutter body 71 of the upper toothed cutter 7 is provided with two first elongated holes 72, and one end of the lower toothed cutter body 81 of the lower toothed cutter 8 is provided with A second elongated hole 82; the two ends of the upper toothed cutter body 71 and the lower toothed cutter body 81 are movably inserted between the two toothed cutter mounting parts 5, and the lower end of the eccentric shaft 31 of one bevel tooth head eccentric shaft 3 is inserted into the first elongated hole 72 at one end of the upper toothed cutter body 71, and the lower part of the eccentric shaft 31 of the other bevel tooth head eccentric shaft 3 passes through the first elongated hole 72 at the other end of the upper toothed cutter body 71 and is inserted into the second elongated hole 82 on the lower toothed cutter body 81. The protective cover 20 is connected to the two ends of the inner side of the mounting bracket 2 to prevent weeds and other foreign objects from entering between the first bevel tooth 13 and the second bevel tooth 32, and to prevent weeds and other foreign objects from getting tangled on the eccentric shaft 31 of the bevel tooth head eccentric shaft 3.

[0037] The specific implementation method is described below:

[0038] I. See also Figure 1 、 Figure 2 、 Figure 3 、 Figure 11 、 Figure 12 One end or the middle of the connecting frame 9 of the present invention is fixedly connected to the mounting frame 2.

[0039] II. See Figure 2 、 Figure 6 、 Figure 8 The reinforcing ribs 30 of the present invention are provided on the upper surface of the upper toothed cutter body 71 and on the lower surface of the lower toothed cutter body 81.

[0040] III. See Figure 11 、 Figure 12 The universal wheel 10 of the present invention is connected to one end of the connecting frame 9.

[0041] IV. See Figure 1 、 Figure 2 、 Figure 5 、 Figure 6 、 Figure 11 、 Figure 12 The working process of this invention:

[0042] See also Figure 14 The present invention is connected to a vehicle or other driving equipment via a connecting frame 9, or one end of the connecting frame 9 is pushed by hand. When the wheel-driven lawnmower 100 of the present invention is pushed or pulled, the two toothed wheels 1 roll and drive the eccentric shafts 3 of the umbrella tooth heads that mesh with them to rotate. The eccentric shafts 31 of the two umbrella tooth head eccentric shafts 3 drive the upper tooth blade 7 and the lower tooth blade 8 to reciprocate between the two tooth blade mounting parts 5. When weeds enter between the teeth of the upper tooth blade 7 and the lower tooth blade 8, they will be cut off.

[0043] See also Figure 13 The present invention can also connect the mounting frame 2 to the chassis of the vehicle 200 by screws or welding, so that the present invention can be used as the front wheel or rear wheel of the vehicle 200, and the lawn mower 100 can be driven to perform lawn mowing operations when the vehicle 200 is moving.

[0044] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is impossible to exhaustively list all possible implementations here. All obvious variations or modifications derived from the technical solutions of the present invention are still within the protection scope of the present invention.

Claims

1. A wheel-driven lawn mower, characterized in that: It includes a gear head running wheel, a mounting frame, an eccentric shaft of a bevel gear head, a gear cutter mounting part, a guard, an upper gear cutter and a lower gear cutter; The two ends of the mounting frame are connected to a tooth head running wheel and a bevel gear head eccentric shaft through bearings, the tooth head running wheel is composed of a first bevel gear and a wheel respectively fixed at the two ends of the wheel shaft; the bevel gear head eccentric shaft is composed of a second bevel gear fixed at one end of the eccentric shaft, wherein the second bevel gear on the bevel gear head eccentric shaft meshes with the first bevel gear on the tooth head running wheel; the lower part of the two ends of the mounting frame is fixedly connected to a toothed cutter mounting piece; The upper toothed knife body of the upper toothed knife is provided with two first long holes, and one end of the lower toothed knife body of the lower toothed knife is provided with a second long hole, and the two ends of the upper toothed knife and the lower toothed knife are movably inserted between the two toothed knife mounting parts, and the lower end of an eccentric shaft of an umbrella tooth head is inserted into the first long hole at one end of the upper toothed knife, and the lower part of the eccentric shaft of the other umbrella tooth head passes through the first long hole at the other end of the upper toothed knife and is inserted into the second long hole at one end of the lower toothed knife, and the shield is connected to the two ends of the inner side of the mounting frame to prevent foreign matter from entering between the first umbrella tooth and the second umbrella tooth, and to prevent foreign matter from winding around the eccentric shaft of the umbrella tooth head; The wheel-driven lawn mower is also provided with a connecting frame, one end or the middle of which is fixedly connected to the mounting frame; The walking wheel driven lawn mower is also provided with reinforcing ribs, and the reinforcing ribs are arranged on the upper side of the upper tooth cutter and on the lower side of the lower tooth cutter; The walking wheel driven lawn mower is also provided with a universal wheel, and the universal wheel is connected to one end of the connecting frame.

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