Lawn mower

Abstract

The utility model discloses a mower, through detachably hanging grass collecting box or lower discharge hopper with backplate, convenient mower switches grass discharging mode, the application of lower discharge hopper makes the mower can be directly discharged from the rear downwards, avoids the chassis downwards direct discharge, chassis side discharge and grass collecting box grass collecting these three conventional grass discharging mode respective shortage, can satisfy the grass that does not need to collect and turn over, avoid the grass that stays too long in chassis and the compound use demand that is not restricted by space topography, in addition, backplate detachable hanging structure is simple and efficient, and the grass collecting box structure is convenient for user instant grass turning over, and the shape of lower discharge hopper is favorable to improve the grass discharging efficiency.

Description

Technical Field

[0001] This utility model relates to the field of garden equipment technology, and in particular to lawn mowers. Background Technology

[0002] Existing lawnmowers typically have a rear-mounted grass collection box with a closable passage connecting it to the chassis. A side drain is also closable on one side of the chassis. During mowing, when the passage is open and the side drain is closed, the airflow generated by the rotating blades blows grass clippings into the collection box. This method collects the clippings, but requires frequent emptying during extended mowing sessions, indirectly affecting mowing efficiency. When the passage and side drain are closed, the airflow directly blows the clippings from an opening under the chassis onto the grass. This method eliminates the need for collection and emptying, but the clippings remain stagnant in the chassis for longer, becoming even finer due to repeated cutting by the blades, directly impacting mowing efficiency. When the passage is closed and the side outlet is open, the airflow generated by the rotating blades will blow the grass clippings from the side outlets to the ground. This method of grass discharge does not require grass collection and dumping, and also avoids grass clippings from staying in the chassis for too long. However, the blades generally only rotate in one direction to cut grass, and the side outlets are only opened on one side of the direction of blade rotation. The grass clippings can only be discharged from one side, which is limited by the spatial terrain, such as narrow spaces, low vegetation, hard ground, etc.

[0003] We are currently considering developing a lawnmower that can be used in different working scenarios, especially to meet the combined needs of eliminating the need for collecting and emptying grass, avoiding grass clippings from remaining in the chassis for too long, and not being restricted by space or terrain. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art, this utility model provides a lawnmower with multiple grass removal modes.

[0005] To achieve the above objectives, the technical solution adopted by this utility model to solve its technical problem is as follows: a lawnmower, including a frame and a mowing component and a grass-discharging component respectively disposed below and behind the frame. The mowing component includes a chassis, and a downward-opening grass-cutting chamber is formed inside the chassis. The grass-discharging component includes a back plate, a grass collection box, and a lower discharge bucket. The grass collection box or the lower discharge bucket is optionally mounted on the back plate. A front discharge port is provided on the chassis, and a rear discharge port is provided on the back plate. A grass discharge channel connects the front discharge port and the rear discharge port. The grass collection box is detachably mounted on the back plate and can form a closed grass collection chamber with the back plate. The rear discharge port leads into the grass collection chamber. The lower discharge bucket is detachably mounted on the back plate and can form a downward-opening grass discharge chamber with the back plate. The rear discharge port leads into the grass discharge chamber.

[0006] In some embodiments, a pair of hangers extend rearward from both sides of the rear outlet on the back plate, and the hangers are provided with hanging slots. Correspondingly, the hay collection box is provided with a first hanging rod for hanging in the pair of hanging slots, and the lower hopper is provided with a second hanging rod for hanging in the pair of hanging slots.

[0007] In some embodiments, the first hanging rod is located inside the grass collection box, the grass collection box opens forward, and the outer edge of the back plate extends backward to form a cover edge. The shape of the grass collection box opening edge and the cover edge are matched and can be inserted and fixed.

[0008] In some embodiments, the grass collection box is provided with a grass unloading component. The upper end of the grass unloading component forms a handle, and the middle part passes through the upper wall of the grass collection box and is fixedly connected to a first hanging rod. The handle is used to pull forward to drive the grass collection box to rotate upward around the first hanging rod until it is separated from the back plate and the opening faces downward to unload grass.

[0009] In some embodiments, the second hook is located outside the lower bucket, which is open to the front and down, and when the lower bucket is mounted on the back plate, the upper part of the lower bucket is located between a pair of hooks.

[0010] In some embodiments, the length and width of the lower hopper gradually increase from top to bottom, and its lower edge slopes downward from front to back.

[0011] In some embodiments, the back plate is provided with a micro switch for detecting whether the grass collection box or the lower discharge bucket is properly installed. Correspondingly, the grass collection box is provided with a first contact for triggering the micro switch, and the lower discharge bucket is provided with a second contact for triggering the micro switch.

[0012] In some embodiments, the rear exhaust outlet is located at the upper center of the back panel.

[0013] In some embodiments, the mowing assembly further includes a pair of mowing blades rotatably mounted in the chassis along the long axis of the chassis, with the front outlet located between the rotation centers of the pair of mowing blades.

[0014] In some embodiments, a plug is detachably provided at the front outlet.

[0015] Due to the application of the above technical solutions, this utility model has the following beneficial effects compared with the prior art: This utility model allows the mower to switch grass discharge modes by detachably mounting a grass collection box or a lower discharge bucket on the back panel. The application of the lower discharge bucket allows the mower to discharge grass directly from the rear downwards, avoiding the shortcomings of the three conventional grass discharge modes: direct discharge from the chassis downwards, side discharge from the chassis, and grass collection box. It can meet the combined needs of not needing to collect and empty grass, avoiding grass clippings from remaining in the chassis for too long, and not being restricted by space and terrain. In addition, the detachable mounting structure of the back panel is simple and efficient, the grass collection box structure allows users to empty grass immediately, and the shape of the lower discharge bucket is conducive to improving grass discharge efficiency. Attached Figure Description

[0016] Figure 1 This is a perspective view of the lower bucket of the lawnmower according to Embodiment 1 of this utility model.

[0017] Figure 2This is a perspective view of the grass collection box mounted on an embodiment of the lawnmower proposed in this utility model.

[0018] Figure 3 This is a perspective view of the chassis, grass discharge channel, and back plate in Embodiment 1 of the lawnmower proposed in this utility model.

[0019] Figure 4 This is a perspective view of the grass collection box in Embodiment 1 of the lawnmower proposed in this utility model.

[0020] Figure 5 This is a perspective view of the lower bucket in Embodiment 1 of the lawnmower proposed in this utility model.

[0021] Figure 6 This is a bottom view of the mowing component in Embodiment 1 of the lawnmower proposed in this utility model.

[0022] Figure 7 This is a schematic diagram of the structure of the lawnmower with the plugging component in Embodiment 1 of the present invention.

[0023] In the diagram: 1. Frame; 2. Chassis; 3. Backplate; 4. Hay collection box; 5. Lower discharge hopper; 6. Front discharge port; 7. Rear discharge port; 8. Hay discharge channel; 9. Hanging frame; 10. Hanging slot; 11. First hanging rod; 12. Second hanging rod; 13. Cover edge; 14. Hay unloading component; 15. Handle; 16. Micro switch; 17. First contact component; 18. Second contact component; 19. Grass cutter; 20. Sealing component. Detailed Implementation

[0024] The present invention will be further described in detail below with reference to specific embodiments.

[0025] Figures 1 to 7 This invention discloses one embodiment of the lawnmower proposed in this utility model. Embodiment one is a riding-type double-blade lawnmower, whose chassis 2 does not have a side exhaust port, and the side exhaust structure is existing technology, so it will not be mentioned below. It should be noted that this utility model is not limited to riding-type and hand-held self-propelled lawnmowers, nor is it limited to single-blade, double-blade, and triple-blade lawnmowers.

[0026] Combination Figures 1 to 6The implementation includes a frame 1 and a mowing assembly and a mowing and chaff removal assembly respectively located below and behind the frame 1. The mowing assembly includes a chassis 2 and a pair of mowing blades 19. The chassis 2 forms a downward-opening cutting chamber, and a front discharge port 6 is provided on the chassis 2. The pair of mowing blades 19 are rotatably mounted in the chassis 2 along the long axis of the chassis 2. The front discharge port 6 is located between the rotation centers of the pair of mowing blades 19. When the mowing assembly is working, the pair of mowing blades 19 rotate at the same speed and in the same direction. The cutting circular areas formed by the rotation of the two cutting blades intersect, and the grass clippings from both cutting circular areas can be discharged through the front discharge port 6. The components include a back plate 3, a grass collection box 4, and a lower discharge hopper 5. The back plate 3 has a rear discharge port 7, which is located in the upper center of the back plate 3. The upper arrangement of the rear discharge port 7 avoids the accumulation of grass shreds and blockage of the rear discharge port 7. A grass discharge channel 8 connects the front discharge port 6 and the rear discharge port 7. The grass discharge channel 8 has a curved tubular structure. A pair of hangers 9 extend backward from both sides of the rear discharge port 7 on the back plate 3. The hangers 9 have hanging slots 10. The back plate 3 has a micro switch 16 for detecting whether the grass collection box 4 or the lower discharge hopper 5 is properly installed. The back plate 3 can be used to selectively install either the grass collection box 4 or the lower discharge hopper 5.

[0027] in:

[0028] When the grass collection box 4 is detachably hung on the back plate 3 to form a closed grass collection chamber with the back plate 3, the rear outlet 7 leads into the grass collection chamber. The grass collection box 4 is provided with a first hanging rod 11, which is hung in a pair of hanging slots 10. The first hanging rod 11 is located inside the grass collection box 4. The grass collection box 4 opens forward, and the outer edge of the back plate 3 extends backward to form a cover edge 13. The shape of the opening edge of the grass collection box 4 and the cover edge 13 match and can be inserted and fixed. The grass collection box 4 is provided with a grass unloading part 14, and the upper end of the grass unloading part 14 forms a handle 15. The middle part passes through the upper wall of the grass collection box 4 and is fixedly connected to the first hanging rod 1. 1. The user can touch the handle 15 while sitting in the seat. Pulling the handle 15 forward will cause the grass collection box 4 to rotate upward around the first hanging rod 11 until it is detached from the back plate 3 and the opening is downward to unload grass. The grass collection box 4 is provided with a first contact 17 for triggering the micro switch 16. Since the micro switch 16 is located on the outer periphery of the back plate 3, the first contact 17 is one side rod that makes up the frame of the grass collection box 4. In addition, the grass collection box 4 is provided with handles at the front and rear of the upper part for easy gripping by the user. When the grass collection box 4 is hung on the back plate 3, the lawnmower is in the conventional grass collection mode of the grass collection box 4.

[0029] The lower bucket 5 is detachably mounted on the back plate 3, forming a downward-opening grass-discharging chamber. The rear outlet 7 leads into the grass-discharging chamber. The lower bucket 5 is equipped with a second hanging rod 12, which is hung in a pair of hanging slots 10. The second hanging rod 12 is located on the outside of the lower bucket 5. The lower bucket 5 opens forward and downward. When the lower bucket 5 is mounted on the back plate 3, the upper part of the lower bucket 5 is located between a pair of hanging brackets 9. The length and width of the lower bucket 5 gradually increase from top to bottom, and its lower edge slopes downward from front to back. This shape design facilitates the discharge of grass clippings. The lower bucket 5 is equipped with a second contact 18 for triggering the micro switch 16. The second contact 18 extends downward and outward from one side of the second hanging rod 12. When the lower bucket 5 is mounted on the back plate 3, the mower discharges grass directly downward from the rear, meeting the combined needs of not needing to collect and empty grass clippings, avoiding grass clippings from remaining in the chassis 2 for too long, and not being restricted by space or terrain.

[0030] Combined Figure 7 A detachable plug 20 is provided at the front outlet 6. The plug 20 is shaped like a shovel and includes a slender gripping part and a plate-shaped sealing part. The gripping part has a curved shape that fits the grass discharge channel 8, and the sealing part has a shape that fits the outer edge of the front outlet 6. The user holds the gripping part to control the sealing part to enter the rear outlet 7 and block the front outlet 6. The back plate 3 is also provided with a limiting device for fixing the plug 20. The limiting device is detachably fixed to the gripping part so that the sealing part can stably block the front outlet 6 without loosening or leakage. When the back plate 3 is inserted into the plug 20, the lawnmower is in the conventional mode where the chassis 2 directly faces downwards to discharge grass.

[0031] The above embodiments are only for illustrating the technical concept and features of this utility model. Their purpose is to enable those skilled in the art to understand the content of this utility model and implement it. They should not be used to limit the protection scope of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be covered within the protection scope of this utility model.

Claims

1. A lawnmower, characterized in that: Includes a frame (1) and mowing and mowing components respectively located below and behind the frame (1). The mowing assembly includes a chassis (2) with a downward-opening mowing chamber formed within the chassis (2). The grass discharge assembly includes a back plate (3), a grass collection box (4), and a lower discharge hopper (5). The back plate (3) is optionally fitted with either the grass collection box (4) or the lower discharge hopper (5). The chassis (2) has a front outlet (6), and the back plate (3) has a rear outlet (7). A grass discharge channel (8) connects the front outlet (6) and the rear outlet (7). The grass collection box (4) is detachably mounted on the back plate (3) to form a closed grass collection chamber with the back plate (3), and the rear outlet (7) leads into the grass collection chamber. The lower discharge hopper (5) is detachably mounted on the back plate (3) and can form a downward-opening grass discharge chamber with the back plate (3). The rear discharge port (7) leads into the grass discharge chamber.

2. The lawnmower according to claim 1, characterized in that: A pair of hangers (9) extend backward from both sides of the rear outlet (7) on the back plate (3). The hangers (9) are provided with hanging grooves (10). Correspondingly, the grass collection box (4) is provided with a first hanging rod (11) for hanging in the pair of hanging grooves (10), and the lower hopper (5) is provided with a second hanging rod (12) for hanging in the pair of hanging grooves (10).

3. The lawnmower according to claim 2, characterized in that: The first hanging rod (11) is located inside the grass collection box (4), the grass collection box (4) opens to the front, and the outer edge of the back plate (3) extends backward to form a cover edge (13). The shape of the opening edge of the grass collection box (4) and the cover edge (13) are matched and can be inserted and fixed.

4. The lawnmower according to claim 3, characterized in that: The grass collection box (4) is provided with a grass unloading component (14). The upper end of the grass unloading component (14) forms a handle (15). The middle part passes through the upper wall of the grass collection box (4) and is fixedly connected to the first hanging rod (11). It is used to pull the handle (15) forward to drive the grass collection box (4) to rotate upward around the first hanging rod (11) until it is separated from the back plate (3) and the opening faces downward to unload grass.

5. The lawnmower according to claim 2, characterized in that: The second hanging rod (12) is located outside the lower bucket (5), which is open to the front and downward. When the lower bucket (5) is hung on the back plate (3), the upper part of the lower bucket (5) is located between a pair of hanging brackets (9).

6. The lawnmower according to claim 1, characterized in that: The lower bucket (5) gradually increases in length and width from top to bottom, and its lower edge slopes downward from front to back.

7. The lawnmower according to claim 1, characterized in that: The back plate (3) is provided with a micro switch (16) for detecting whether the grass collection box (4) or the lower hopper (5) is properly installed. Correspondingly, the grass collection box (4) is provided with a first contact (17) for triggering the micro switch (16), and the lower hopper (5) is provided with a second contact (18) for triggering the micro switch (16).

8. The lawnmower according to claim 1, characterized in that: The rear outlet (7) is located at the upper center of the back plate (3).

9. The lawnmower according to claim 1, characterized in that: The mowing assembly also includes a pair of mowing blades (19), which are rotatably mounted in the chassis (2) along the long axis of the chassis (2), and the front outlet (6) is located between the rotation centers of the pair of mowing blades (19).

10. The lawnmower according to claim 1, characterized in that: A plug (20) is detachably provided at the front outlet (6).

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