A grass chopper anti-winding device
By designing staggered cutting blades and an arc-shaped outer cover structure in the grass shredder, the problem of grass tangling is solved, enabling the grass to be cut into short segments, reducing tangling, and improving the efficiency of equipment use.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG JIARUI MACHINERY CO LTD
- Filing Date
- 2025-07-09
- Publication Date
- 2026-06-09
Smart Images
Figure CN224329974U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of grass shredder technology, specifically to a grass shredder anti-tangle device. Background Technology
[0002] A lawn shredder is a device used to cut grass in wastelands or lawns. It is usually driven by a trolley that pulls the grass-shredding device. As the trolley moves, the grass-shredding device is pulled along and shredded.
[0003] The outer casing of the grass shredder contains a rotating shaft and a shredder blade. As the shaft and blade rotate, they cut the grass at the corresponding height when they come into contact with it.
[0004] The existing shredder cuts the grass, and the grass falls down. At this point, the cut grass is quite long and easily gets tangled on the shaft as the shredder rotates, affecting subsequent use. Utility Model Content
[0005] The purpose of this utility model is to provide a grass shredder anti-grass tangling device to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a grass shredder anti-tangling device, comprising:
[0007] Outer casing, rotating shaft, inner support frame, and cutting blade;
[0008] The outer cover is hollow and open at the bottom. The upper surface of the outer cover is arc-shaped. Bearings are provided at both ends of the inner part of the outer cover. Rotary shafts are rotatably mounted at both ends of the outer cover through the bearings. The inner support frame is fixedly installed between the rotating shafts at both ends.
[0009] The cutting blades are provided in multiple ways and are installed on the outer wall of the inner support frame. The cutting blades on the inner support frame are staggered with each other.
[0010] Preferably, the outer cover includes an upper protective cover, a left side plate, and a right side plate. The left side plate and the right side plate are fixedly connected to the left and right sides of the upper protective cover, and the bearings at both ends are respectively installed on the left side plate and the right side plate.
[0011] Preferably, the upper side end of the left side plate extends upward to form a connecting portion.
[0012] Preferably, the inner support frame includes two end plates and multiple support columns. The two end plates are respectively fixedly connected to the rotating shafts at both ends. The support columns are distributed and connected at the edges between the two end plates. The cutting blade is fixedly installed on the outer wall of the support column.
[0013] Preferably, the cutting blade includes three blades, with one end of the three blades welded together and the other end open, and the welded end of the three blades is fixedly connected to the support column.
[0014] Preferably, it also includes a middle plate, which is fixedly connected to the middle of the outer wall of the support column.
[0015] Compared with the prior art, the beneficial effects of this utility model are:
[0016] In this design, the cutting blades are staggered. While cutting the grass, the other cutting blades continue to cut the grass, resulting in short, shredded grass that is less likely to get tangled on the cutting blades or the inner support frame.
[0017] Meanwhile, the lower side of the outer cover is open, and the upper part of the outer cover is convex and arc-shaped, so that grass can be easily discharged from the rear side after entering the outer cover without being blocked. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the structure of this utility model;
[0019] Figure 2 This is a schematic diagram of the structure of this utility model after removing the left side panel;
[0020] Figure 3 This is a schematic diagram of the structure of the inner support frame and the cutting blade of this utility model.
[0021] In the diagram: 1. Left side plate; 2. Upper protective cover; 3. Right side plate; 4. Bearing; 5. Shaft; 6. Support column; 7. Cutting blade; 8. Middle plate; 9. End plate Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0024] Example 1:
[0025] Please see Figure 1-3 This utility model provides a technical solution: a grass shredder anti-grass tangling device, comprising: an outer cover, a rotating shaft 5, an inner support frame, and a cutting blade 7;
[0026] The outer cover is hollow and open at the bottom. The upper surface of the outer cover is arc-shaped. Bearings 4 are provided at both ends of the inner part of the outer cover. Rotating shafts 5 are rotatably mounted at both ends of the outer cover through the bearings 4. The inner support frame is fixedly installed between the rotating shafts 5 at both ends. Multiple cutting blades 7 are provided and are installed on the outer wall of the inner support frame. The cutting blades 7 on the inner support frame are staggered.
[0027] Analysis of the above content: The external drive structure is connected to one of the rotating shafts 5, which is used to drive the rotating shaft 5, the inner support frame, and the cutting blades 7 to rotate. The cutting blades 7 are staggered, which can cut the grass at different positions, so that the grass is cut into multiple segments, making the cut grass shorter and less likely to get tangled on the rotating shaft 5 and the cutting blades 7.
[0028] Example 2:
[0029] Please see Figure 1-3 The present invention provides a technical solution based on Embodiment 1: the outer cover includes an upper protective cover 2, a left side plate 1 and a right side plate 3. The left side plate 1 and the right side plate 3 are fixedly connected to the left and right sides of the upper protective cover 2. The bearings 4 at both ends are respectively installed on the left side plate 1 and the right side plate 3. The upper protective cover 2 is a convex arc plate.
[0030] Analysis of the above content: such as Figure 1 As shown, the upper protective cover 2, the left side plate 1 and the right side plate 3 are hollow and open on the lower, front and back sides. When grass enters the outer cover, it stays in the outer cover for a short time and is less likely to get tangled.
[0031] Example 3:
[0032] Please see Figure 1-3 Based on Embodiment 2, this utility model provides a technical solution: the upper side of the left side plate 1 extends upward to form a connecting part.
[0033] Analysis of the above content: such as Figure 1 As shown, the upper left end of the left side plate 1 protrudes upwards, which facilitates connection with other components.
[0034] Example 4:
[0035] Please see Figure 1-3This utility model provides a technical solution based on Embodiment 1: The inner support frame includes two end plates 9 and multiple support columns 6. The two end plates 9 are respectively fixedly connected to the rotating shafts 5 at both ends. The support columns 6 are distributed and connected at the edges between the two end plates 9. The cutting blade 7 is fixedly installed on the outer wall of the support column 6. The cutting blade 7 includes three blades, with one end of the three blades welded together and the other end open. The welded end of the three blades is fixedly connected to the support column 6.
[0036] Analysis of the above content: One end of the rotating shaft 5 is the drive shaft. The rotating shaft 5 is driven by an external drive structure, so that the rotating shaft 5 drives the inner support frame and the cutting blade 7 to rotate. There are three support columns 6, which are distributed in a triangular shape. The cutting blades 7 on the three support columns 6 are staggered with each other. In this way, when the three support columns 6 and the cutting blades 7 rotate, they cut the grass at different positions.
[0037] Example 5:
[0038] Please see Figure 1-3 The present invention provides a technical solution based on Embodiment 1: it further includes a middle plate 8, which is fixedly connected to the middle of the outer wall of the support column 6.
[0039] Analysis of the above content: The middle plate 8 supports the three pillars 6 from the middle, so that the pillars 6 remain stable and avoid deformation.
[0040] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It is obvious to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description. Therefore, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this utility model, and no reference numerals in the claims should be considered as limiting the scope of the claims.
[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A grass shredder anti-tangle device, characterized in that, include: Outer casing, rotating shaft (5), inner support frame and cutting blade (7); The outer cover is hollow and open at the bottom. The upper surface of the outer cover is arc-shaped. Bearings (4) are provided at both ends of the inner part of the outer cover. Rotary shafts (5) are rotatably installed at both ends of the outer cover through the bearings (4). The inner support frame is fixedly installed between the rotating shafts (5) at both ends. Multiple cutting blades (7) are provided, and the cutting blades (7) are installed on the outer wall of the inner support frame. The cutting blades (7) on the inner support frame are staggered.
2. The anti-tangling device for a grass shredder according to claim 1, characterized in that: The outer cover includes an upper protective cover (2), a left side plate (1) and a right side plate (3). The left side plate (1) and the right side plate (3) are fixedly connected to the left and right sides of the upper protective cover (2), and the bearings (4) at both ends are respectively installed on the left side plate (1) and the right side plate (3).
3. The anti-tangling device for a grass shredder according to claim 2, characterized in that: The upper side of the left side plate (1) extends upward to form a connecting part.
4. The anti-tangling device for a grass shredder according to claim 1, characterized in that: The inner support frame includes two end plates (9) and multiple support columns (6). The two end plates (9) are fixedly connected to the rotating shafts (5) at both ends respectively. The support columns (6) are distributed and connected at the edges between the two end plates (9). The cutting blade (7) is fixedly installed on the outer wall of the support column (6).
5. The anti-tangling device for a grass shredder according to claim 4, characterized in that: The cutting blade (7) includes three blades, with one end of the three blades welded together and the other end open. The welded end of the three blades is fixedly connected to the support column (6).
6. The anti-tangling device for a grass shredder according to claim 4, characterized in that: It also includes a middle plate (8), which is fixedly connected to the middle of the outer wall of the support column (6).