Grass clippings conveying and guiding structure of mower
By designing the conveying channel structure of the guide groove and conveying shell in the lawn mower, the problem of poor grass cutting guidance is solved, effective collection of grass cuttings and cleaning of the lawn is achieved, and the lawn is prevented from rotting.
Patent Information
- Application Number
- CN202323477316.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-20
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2033-12-20
AI Technical Summary
The existing lawn mower grass clipping guide structure is difficult to effectively collect grass clippings during the guidance process, causing the grass clippings to fall back to the lawn, causing the lawn to become ill and rot.
A lawn mower grass clipping conveying guide structure is designed. By setting a guide groove and conveying shell on the mowing chassis, an open conveying channel on both sides is formed, and the grass clippings are guided outside the mowing chamber, and cleaning is set on the conveying shell. The port is easy to clean and prevents passages from being blocked.
It realizes effective guidance and collection of grass clips, preventing grass clips from falling back to the lawn, improves the cleanliness of the lawn, reduces the risk of lawn disease and rot, and ensures the cleanliness of the conveying channels.
Smart Images
Figure CN222263666U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of lawn mowers, in particular to a grass cuttings conveying and guiding structure for lawn mowers. Background Art
[0002] As a garden tool, riding lawn mowers are widely used in mowing lawns, vegetation and other areas. Compared with push lawn mowers, riding lawn mowers are more labor-saving and more efficient in mowing. Usually, there is an open hood structure in the mowing chassis, and the grass clippings cut by the rotation of the blade are discharged toward the opening of the mowing chamber through the conveying air. In order to better collect the grass clippings, a grass clipping guide structure is required.
[0003] After searching, the grass clippings conveying and guiding structure of the lawn mower mentioned in the Chinese invention patent with patent number CN102648677A includes a tool housing for accommodating a blade; the tool housing has a hollow volute disc shape, and the inner cavity forms a volute-shaped grass clippings conveying channel; it also includes a guide cover plate, which is arranged obliquely along the grass clippings conveying channel; the bottom plate shape of the guide cover plate matches the volute shape of the grass clippings conveying channel; the front end of the guide cover plate is fixed on the tool housing, and a boss is provided inside the tool housing, and the front end of the guide cover plate is fixedly mounted on the boss to form an entrance to the grass clippings rolling channel. Therefore, there is no need to stop the machine and invert it for cleaning operations, which saves labor and improves work efficiency.
[0004] In the prior art, guide covers are used to guide grass clippings. However, the guiding method using guide covers will cause more grass clippings to be difficult to collect and fall directly onto the grass. Excessive grass clippings left on the grass will cause the grass to become diseased and rot. Therefore, a structure that can better guide and collect grass clippings is needed. Utility Model Content
[0005] The utility model aims to solve the above problems and provides a grass clippings conveying and guiding structure for a lawn mower, which has the advantages of guiding and conveying grass clippings and preventing the grass clippings from falling back onto the lawn.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: it includes a frame, a mowing chassis is provided at the bottom of the frame, a mowing chamber with an opening downward is provided in the mowing chassis, a mowing assembly is installed in the mowing chamber, an upper end surface of the mowing chamber has a guide groove arranged along the edge of the mowing chassis, a side end of the mowing chassis has an opening connected to the mowing chamber, the guide groove extends to the opening of the mowing chassis, a conveying shell is hingedly installed in the mowing chamber, a conveying groove is provided in the conveying shell, the conveying groove and the guide groove form a conveying channel with two sides open, one end of the conveying channel is connected to the outside through the opening of the mowing chassis, and the other end of the conveying channel is connected to the mowing chamber, and grass clippings are guided and conveyed to the outside of the mowing chamber through the conveying channel.
[0007] Preferably, the mowing chassis has a first clamping strip located in the mowing cavity, the outer edge of the conveying shell has a second clamping strip matching the first clamping strip, and the second clamping strip on the conveying shell is installed by clamping and matching with the first clamping strip.
[0008] Preferably, the lower end of the first card strip and the upper end of the second card strip have corresponding slopes, so it is more convenient to install and cooperate with the first card strip and the second card strip. The upper end of the first card strip and the lower end of the second card strip are both flat, and the upper edge of the first card strip has a chamfer.
[0009] Preferably, a cleaning port is provided on the side wall of the conveying shell, and a swing plate for opening and closing the conveying trough is hingedly mounted on the cleaning port. When the second clamping bar on the conveying shell is disengaged from the first clamping bar, the conveying shell swings downward, and due to gravity, the swinging plate always remains vertical to the ground, so that the cleaning port is opened, and the residual garbage and grass clippings in the conveying trough are discharged through the cleaning port.
[0010] Preferably, the upper end surface of the guide groove and the lower end surface of the conveying groove both have a slope, the upper end surface of the guide groove extends obliquely upward on a side close to the opening of the mowing chassis, and the lower end surface of the conveying groove extends obliquely downward on a side close to the opening of the mowing chassis, so that the cross-sectional area of the conveying channel close to the side of the mowing chassis opening is larger than the cross-sectional area of the conveying channel away from the side of the mowing chassis opening.
[0011] Preferably, the lower limit position of the conveying shell will not exceed the bottom of the mowing chassis.
[0012] Preferably, a guide shell is hinged on the mowing chassis, a guide cavity is provided in the guide shell, the guide cavity is connected with the conveying channel through an opening of the mowing chassis, and the guide shell is used for receiving an external collecting device.
[0013] Preferably, rollers for assisting the movement of the mowing chassis are installed at opposite ends of the mowing chassis.
[0014] Compared with the prior art, the utility model has the following beneficial effects: a conveying channel is formed by the conveying groove and the guide groove in the conveying shell, so that the blade can bring grass clippings into the conveying channel when cutting, and the bottom of the conveying channel is the conveying shell, so the grass clippings will not fall back onto the lawn, preventing too many weeds from falling on the lawn, causing the lawn to become diseased and rotten, and the conveying shell is provided with a cleaning port to clean the conveying channel at any time to prevent the conveying channel from being blocked. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model lawn mower;
[0016] Figure 2 It is a schematic diagram of the three-dimensional structure of the conveying guide of the utility model;
[0017] Figure 3 It is a schematic diagram of the top view structure of the conveying guide of the utility model;
[0018] Figure 4 for Figure 3 Schematic diagram of the cross-sectional structure of AA;
[0019] Figure 5 for Figure 4 Schematic diagram of the enlarged structure of B.
[0020] Description of the drawings: 1. Frame; 2. Mowing chassis; 20. Mowing chamber; 201. Guide groove; 21. Roller; 22. Guide shell; 221. Guide chamber; 24. First clamping strip; 3. Mowing assembly; 31. Mowing element; 4. Conveying shell; 40. Conveying groove; 401. Cleaning port; 41. Swinging plate; 42. Second clamping strip. DETAILED DESCRIPTION
[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0022] like Figure 1-Figure 5As shown, a grass cutting conveying guide structure of a lawn mower comprises a frame 1, a mowing chassis 2 is provided at the bottom of the frame 1, a mowing chamber 20 with an opening downward is provided in the mowing chassis 2, a mowing assembly 3 is installed in the mowing chamber 20, an upper end surface of the mowing chamber 20 has a guide groove 201 arranged along the edge of the mowing chassis 2, a side end of the mowing chassis 2 has an opening connected to the mowing chamber 20, the guide groove 201 extends to the opening of the mowing chassis 2, a conveying shell 4 is hingedly installed in the mowing chamber 20, a conveying groove 40 is provided in the conveying shell 4, the conveying groove 40 and the guide groove 201 form a conveying channel with two sides open, and the conveying channel is The grass clippings are guided and transported to the outside of the grass clippings chamber 20 through the transport channel. The grass clippings are guided and transported to the outside of the grass clippings chamber 20 through the transport channel. The grass clippings assembly 3 has one or two grass clipping elements 31, and the grass clipping elements 31 are blades. If there are two grass clipping elements 31, the grass clipping elements 31 have the same rotation direction. The grass clipping elements 31 are arranged in the grass clippings chamber 20, and the outer edge of the grass clipping elements 31 rotates toward the opening of the transport channel close to the grass clippings chamber 20, so that the grass clippings can be driven into the transport channel, and the vortex airflow formed by the rotation of the blades can also assist the grass clippings to enter the transport channel as a transport wind.
[0023] A conveying shell 4 is provided at the bottom of the conveying channel, so that grass clippings will not fall back onto the lawn after entering the conveying channel.
[0024] The mowing chassis 2 has a first clamping strip 24 located in the mowing chamber 20, and the outer edge of the conveying shell 4 has a second clamping strip 42 that matches the first clamping strip 24. The second clamping strip 42 on the conveying shell 4 is installed by clamping and matching with the first clamping strip 24. The lower end of the first clamping strip 24 and the upper end of the second clamping strip 42 have corresponding slopes, so it is more convenient to install and match the first clamping strip 24 and the second clamping strip 42. The upper end of the first clamping strip 24 and the lower end of the second clamping strip 42 are both flat, so the first clamping strip 24 and the second clamping strip 42 will not be detached when they are installed together, and the upper edge of the first clamping strip 24 has a chamfer, so when the conveying shell 4 is manually pulled down, the chamfer can make the second clamping strip 42 more easily detached from the first clamping strip 24.
[0025] A cleaning port 401 is provided on the side wall of the conveying shell 4, and a swing plate 41 for opening and closing the conveying trough 40 is hingedly installed on the cleaning port 401. When the second clamping strip 42 on the conveying shell 4 is disengaged from the first clamping strip 24, the conveying shell 4 can swing downward. Due to gravity, the swinging plate 41 always remains vertical to the ground, so that the cleaning port 401 is opened, and the remaining garbage and grass clippings in the conveying trough 40 are discharged through the cleaning port 401, thereby preventing the accumulation of garbage in the conveying trough 40 and causing the conveying channel to be blocked. In addition, the conveying trough 40 has a slope on the side away from the cleaning port 401, so that the garbage and grass clippings in the conveying trough 40 can be more easily discharged from the cleaning port 401.
[0026] The upper end face of the guide groove 201 and the lower end face of the conveying groove 40 have a slope, and the upper end face of the guide groove 201 extends obliquely upward on the side close to the opening of the mowing chassis 2, and the lower end face of the conveying groove 40 extends obliquely downward on the side close to the opening of the mowing chassis 2. Therefore, the cross-sectional area of the conveying channel on the side close to the opening of the mowing chassis 2 is larger than the cross-sectional area of the conveying channel on the side away from the opening of the mowing chassis 2, that is, the conveying channel has a trumpet-shaped opening, and the lower end face of the conveying channel is inclined obliquely downward, so that grass clippings can be better conveyed to the opening of the mowing chassis 2, and the lower limit position of the conveying shell 4 will not exceed the bottom of the mowing chassis 2, so there will be no situation where the bottom of the conveying shell 4 touches the grass.
[0027] A guide shell 22 is hinged on the mowing chassis 2, and a guide cavity 221 is provided in the guide shell 22. The guide cavity 221 is connected with the conveying channel through the opening of the mowing chassis 2. The guide shell 22 is used for an external collecting device, and the conveying guide structure collects the cut grass clippings into the collecting device, thereby making it more convenient to collect the grass clippings.
[0028] Rollers 21 for assisting the movement of the mowing chassis 2 are installed at opposite ends of the mowing chassis 2, so that the rollers 21 on the mowing chassis 2 can move more smoothly when contacting the ground.
[0029] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.
[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A grass cutting conveying and guiding structure for a lawn mower, comprising a frame (1), a mowing chassis (2) being provided at the bottom of the frame (1), a mowing chamber (20) opening downwardly being provided in the mowing chassis (2), a mowing assembly (3) being installed in the mowing chamber (20), and characterized in that: The upper end surface of the mowing chamber (20) has a guide groove (201) arranged along the edge of the mowing chassis (2); the side end of the mowing chassis (2) has an opening connected to the mowing chamber (20); the guide groove (201) extends to the opening of the mowing chassis (2); a conveying shell (4) is hingedly installed in the mowing chamber (20); the conveying shell (4) has a conveying groove (40); the conveying groove (40) and the guide groove (201) form a conveying channel with two sides open; one end of the conveying channel is connected to the outside through the opening of the mowing chassis (2); the other end of the conveying channel is connected to the mowing chamber (20); grass clippings are guided and conveyed to the outside of the mowing chamber (20) through the conveying channel.
2. The grass cuttings conveying and guiding structure for a lawn mower according to claim 1, characterized in that: The mowing chassis (2) has a first clamping strip (24) located in the mowing chamber (20), and the outer edge of the conveying shell (4) has a second clamping strip (42) that matches the first clamping strip (24), and the second clamping strip (42) on the conveying shell (4) is mounted in a clamping and matching manner with the first clamping strip (24).
3. The grass cuttings conveying and guiding structure for a lawn mower according to claim 2, characterized in that: The lower end of the first clip strip (24) and the upper end of the second clip strip (42) have corresponding slopes, so that it is more convenient to install and cooperate with the first clip strip (24) and the second clip strip (42); the upper end of the first clip strip (24) and the lower end of the second clip strip (42) are both flat, and the upper edge of the first clip strip (24) has a chamfer.
4. The grass cuttings conveying and guiding structure for a lawn mower according to claim 3, characterized in that: The conveying shell (4) has a cleaning opening (401) on its side wall. A swing plate (41) for opening and closing the conveying trough (40) is hingedly mounted on the cleaning opening (401). When the second clamping strip (42) on the conveying shell (4) is disengaged from the first clamping strip (24), the conveying shell (4) swings downward. Due to gravity, the swinging plate (41) always remains vertical to the ground, so that the cleaning opening (401) is opened, and the garbage and grass clippings remaining in the conveying trough (40) are discharged through the cleaning opening (401).
5. The grass cutting conveying guide structure for a lawn mower according to claim 1, characterized in that: The upper end surface of the guide groove (201) and the lower end surface of the conveying groove (40) both have a slope. The upper end surface of the guide groove (201) extends obliquely upward on a side close to the opening of the mowing chassis (2), and the lower end surface of the conveying groove (40) extends obliquely downward on a side close to the opening of the mowing chassis (2). Therefore, the cross-sectional area of the conveying channel on the side close to the opening of the mowing chassis (2) is larger than the cross-sectional area of the conveying channel on the side away from the opening of the mowing chassis (2).
6. The grass cuttings conveying guide structure for a lawn mower according to claim 5, characterized in that: The lower limit position of the conveying shell (4) will not exceed the bottom of the mowing chassis (2).
7. The grass cuttings conveying and guiding structure for a lawn mower according to claim 1, characterized in that: A guide shell (22) is hingedly connected to the mowing chassis (2), a guide cavity (221) is provided in the guide shell (22), the guide cavity (221) is connected to the conveying channel through an opening of the mowing chassis (2), and the guide shell (22) is used for receiving an external collecting device.
8. The grass cuttings conveying and guiding structure for a lawn mower according to claim 1, characterized in that: Rollers (21) for assisting the movement of the mowing chassis (2) are installed at opposite ends of the mowing chassis (2).