Weeding machine capable of preventing grass winding and oil leakage

Abstract

The utility model relates to the field of mowers, in particular to a grass-winding-preventing and oil-leakage-preventing weed extractor which comprises an operating rod, a power transmission unit, a grass-winding-preventing protective disc and a blade. A power transmission unit is arranged in the operating rod, and oil seals are arranged on the two sides of the transmission part respectively. The grass winding prevention protection disc comprises a large protection disc body and a small protection disc body, the large protection disc body and the small protection disc body are arranged in a nested mode, the small protection disc body is arranged on the cutter, a gap with the opening direction being the vertical direction during implementation is formed, and grass winding is avoided. The equipment is more reasonable in structural configuration, the oil leakage prevention function of the transmission mechanism of the equipment and the grass winding prevention function of the cutting mechanism are achieved through a simple structure, the blade packaging structure of the equipment is optimized on the basis of the product in the prior art, grass winding on the bottom face of the equipment is avoided, the operation efficiency of the equipment is guaranteed, operation is smoother, and the equipment has higher market popularization value.

Description

Technical Field

[0001] The utility model relates to the field of weeders, in particular to a weeder which can prevent weed entanglement and oil leakage. Background Art

[0002] A lawn mower is a common gardening equipment. Its operating principle is to use a rotating cutting part to cut off the excess stems and leaves of flowers and plants. During the implementation process, a rotating machine is set at the end of the operating rod, and the assembly gap is prone to entanglement with grass, resulting in increased power consumption of the equipment. In serious cases, the equipment may even stop, affecting the normal use and service life of the equipment.

[0003] In order to solve the above problems, the applicant filed application number 201621135684 7, disclosing a tooth-guard type anti-grass entanglement device for garden machinery. After long-term market verification, the device can play a certain role in preventing grass entanglement, but the gap between the teeth still cannot prevent shorter stems and leaves from entering the gap 7. After long-term use, grass entanglement still occurs, and regular cleaning is required. In addition, the power connection structure of the equipment is not reasonable, and there is a certain amount of oil leakage. Finally, the outer end or the bottom blade part is not assembled reasonably, resulting in the locking mechanism being entangled with grass, affecting the operation of the equipment. Utility Model Content

[0004] The utility model aims to overcome the shortcomings of the prior art and provide a weeder with a more reasonable structure, which prevents grass from being entangled in gaps and has the function of preventing oil leakage and a more reasonable blade assembly structure.

[0005] The equipment includes an operating lever, a power transmission unit, an anti-grass protection disc and a blade;

[0006] The operating lever is the hand-held part of the mower in the prior art. A power transmission unit is arranged in the operating lever. The power transmission unit includes an input gear, which is rotatably encapsulated in the operating lever through a bearing and a sleeve; the input gear meshes with the output gear, and a transmission main shaft is arranged in the middle of the output gear; oil seals are arranged between the transmission main shaft and the operating lever, and between the input gear and the operating lever respectively;

[0007] The anti-grass entanglement protection plate includes a large protection plate and a small protection plate, wherein the large protection plate is fixedly arranged at the end of the operating rod; the large protection plate includes a protection plate base plate, and an outer annular shield is arranged on the edge of the protection plate base plate and extends outwards perpendicularly to the protection plate base plate;

[0008] A small protective disc is arranged inside the large protective disc, and the small protective disc is fixedly arranged on the blade; the small protective disc includes a protective disc substrate, and the edge of the protective disc substrate extends outwards vertically to the protective disc substrate, and an inner annular shield is arranged; the large protective disc and the small protective disc are nested, and the outer surface of the inner annular shield is arranged close to the outer annular shield;

[0009] The transmission main shaft is packaged with a blade via a flange.

[0010] The beneficial effects of the utility model are as follows: the structural configuration of the equipment is more reasonable, and the oil leakage prevention function of the transmission mechanism of the equipment and the anti-grass entanglement function of the cutting mechanism are realized through a simple structure. The blade packaging structure is optimized based on the existing technical products to avoid grass entanglement on the bottom surface of the equipment, thereby ensuring the operating efficiency of the equipment, making the operation smoother and having more market promotion value. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of a weeding machine that prevents grass entanglement and oil leakage according to the utility model;

[0012] Figure 2 This is an appearance diagram of a weeding machine that prevents weed entanglement and oil leakage described in the utility model;

[0013] Figure 3 It is a structural schematic diagram of the end protection plate;

[0014] Reference numerals:

[0015] 1-operating lever 2-oil seal 3-input gear 4-transmission main shaft 5-output gear 6-blade 7-end guard plate 8-blade holder 9-large guard plate 10-small guard plate

[0016] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0017] Reference Figure 1 , Figure 2 The utility model discloses an anti-grass entanglement and oil leakage preventing weeding machine, comprising an operating rod 1, a power transmission unit, an anti-grass entanglement protection plate and a blade 6;

[0018] The operating rod 1 is the hand-held part of the mower in the prior art. A power transmission unit is arranged in the operating rod 1. The power transmission unit includes an input gear 3. The input gear 3 is rotatably encapsulated in the operating rod 1 through a bearing and a sleeve; the input gear 3 meshes with an output gear 5, and a transmission main shaft 4 is arranged in the middle of the output gear 5; oil seals 2 are arranged between the transmission main shaft 4 and the operating rod 1, and between the input gear 3 and the operating rod 1 respectively;

[0019] The effect achieved by this is that the lubricating oil is retained in the meshing transmission part to avoid oil leakage.

[0020] The anti-grass entanglement protection plate includes a large protection plate 9 and a small protection plate 10. The large protection plate 9 is fixedly arranged at the end of the operating rod 1. The large protection plate 9 includes a protection plate base plate, and an outer annular shield is provided which extends outwardly and perpendicularly to the protection plate base plate from the edge of the protection plate base plate.

[0021] A small protective disc 10 is arranged inside the large protective disc 9, and the small protective disc 10 is fixedly arranged on the blade 6; the small protective disc 10 includes a protective disc substrate, and the edge of the protective disc substrate integrally extends toward the large protective disc 9 and perpendicular to the protective disc substrate, and is provided with an inner annular shield; the large protective disc 9 and the small protective disc 10 are nested, and the outer surface of the inner annular shield is close to the outer annular shield;

[0022] That is, the annular mask on the small protective plate 10 is partially embedded in the annular mask on the large protective plate 9, and the two masks are basically in contact with each other, forming a package between the large and small protective plates without affecting the rotation. In this case, the gap between the large and small protective plates is open in a vertical direction in terms of implementation, rather than towards the side, thereby achieving the anti-grass entanglement function.

[0023] The transmission main shaft 4 is encapsulated with a blade 6 via a flange.

[0024] The effect achieved in this way is that the two oil seals 2 can limit the lubricating oil within its transmission structure on the basis of avoiding oil leakage, thereby protecting the transmission equipment from overheating and increasing its service life; the large and small protective discs are interlocked with each other, so that the gap part is upward instead of toward the side during the implementation process, thereby achieving the effect of preventing grass entanglement.

[0025] In embodiment 1, the blade 6 is a multi-layer blade, and the multi-layer blade comprises a blade holder 8, on which the multi-layer blades are arranged in an array;

[0026] The tail end of the blade holder 8 is encapsulated on the transmission main shaft 4 through a flange, and an end protection plate 7 is fixedly arranged outside the flange.

[0027] The outside mentioned here refers to the bottom surface of the device in the implementation state, that is, the packaging mechanism between the blade 6 and the transmission main shaft 4 is protected by the end protection plate 7 to avoid grass entanglement.

[0028] In Example 2, the small protective plate 10 is fixed on the blade 6 by anchor nails.

[0029] Furthermore, the operating rod 1 is an aluminum tube.

[0030] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims.

[0031] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An anti-grass entanglement and oil leakage weeding machine, comprising an operating rod, a power transmission unit, an anti-grass entanglement protection disc and a blade; the power transmission unit is arranged in the operating rod, the power transmission unit comprises an input gear, the input gear is rotatably encapsulated in the operating rod through a bearing and a sleeve; the input gear meshes with the output gear, and a transmission main shaft is arranged in the middle of the output gear, characterized in that: Oil seals are respectively arranged between the transmission main shaft and the operating rod, and between the input gear and the operating rod; The anti-grass entanglement protection plate includes a large protection plate and a small protection plate, wherein the large protection plate is fixedly arranged at the end of the operating rod; the large protection plate includes a protection plate base plate, and an outer annular shield is arranged on the edge of the protection plate base plate and extends outwards perpendicularly to the protection plate base plate; A small protective disc is arranged inside the large protective disc, and the small protective disc is fixedly arranged on the blade; the small protective disc includes a protective disc substrate, and the edge of the protective disc substrate extends outwards vertically to the protective disc substrate, and an inner annular shield is arranged; the large protective disc and the small protective disc are nested, and the outer surface of the inner annular shield is arranged close to the outer annular shield; The transmission main shaft is packaged with a blade via a flange.

2. The anti-grass entanglement and oil leakage preventing weeding machine according to claim 1, characterized in that: The blade is a multi-layer blade, and the multi-layer blade comprises a blade rack, on which the multi-layer blades are arranged in an array; The tail end of the blade holder is encapsulated on the transmission main shaft through a flange plate, and an end protection plate is fixedly arranged outside the flange plate.

3. The anti-grass entanglement and oil leakage preventing weeding machine according to claim 1, characterized in that: The small protective disc is fixed on the blade by anchor nails.

4. The anti-grass entanglement and oil leakage preventing weeding machine according to claim 1, characterized in that: The operating rod is an aluminum tube.

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