Mowing machine and mowing system

Abstract

The utility model provides a mowing machine and a mowing system. The mowing machine comprises a machine frame, a header and a switching mechanism. The header is installed on the rack and comprises a grass collecting opening. The switching mechanism comprises a baffle and a handle, and the baffle is rotationally installed in the grass collecting opening; the handle is rotationally mounted on the baffle and moves between a first position and a second position so as to correspondingly drive the baffle to close or open the grass collecting opening; when the handle reaches the first position, the handle is matched with the first clamping structure, so that the baffle is kept at the closing position; and when the handle reaches the second position, the handle is matched with the second clamping structure so as to keep the baffle at the opening position. The technical problem that the mowing efficiency is low due to the fact that the mowing machine takes a long time to convert among working modes such as grass collecting, grass discharging or grass chopping can be solved.

Description

Technical Field

[0001] The utility model relates to the field of garden tools, in particular to a lawn mower and a lawn mowing system. Background Art

[0002] Most commonly used lawn mowers mow by rotating a cutting blade set in a cutting table. Such lawn mowers generally include two working modes: one is a grass collection mode in which the grass cut by the cutting blade is collected in a container such as a grass collection bag, and the other is a grass discharge mode in which the grass cut by the cutting blade is not collected, such as a grass shredding mode that can be discharged under the cutting table or a grass discharge mode that is discharged from a side discharge port. However, in actual operation, it is often necessary to selectively switch between different working modes due to different purposes.

[0003] Most of the lawn mowers currently on the market require users to set grass-chopping plugs and baffles at the grass collection port. When the lawn mower is in grass collection mode, the baffle needs to be opened and the grass-chopping plug needs to be removed to convert the lawn mower into grass collection mode. This conversion method requires opening the baffle and removing or installing the grass-chopping plug each time, which requires more operation steps and takes a long time, resulting in lower grass cutting efficiency of the lawn mower. Utility Model Content

[0004] In view of the above shortcomings of the prior art, the utility model provides a lawn mower and a lawn mowing system to improve the technical problem that the lawn mower takes a long time to switch between working modes such as grass collecting, grass discharging or grass chopping, resulting in low mowing efficiency.

[0005] To achieve the above-mentioned purpose and other related purposes, the utility model provides a lawn mower, which includes: a frame, a cutting table and a switching mechanism; the cutting table is installed on the frame and includes a grass collecting port; the switching mechanism includes: a baffle and a handle, the baffle is rotatably installed in the grass collecting port; the handle is rotatably installed on the baffle and moves between a first position and a second position to correspondingly drive the baffle to close or open the grass collecting port; wherein, when the handle reaches the first position, the handle cooperates with the first clamping structure to keep the baffle in the closed position; when the handle reaches the second position, the handle cooperates with the second clamping structure to keep the baffle in the open position.

[0006] In one example of the lawn mower of the utility model, a grass discharge pipe is provided on the outer wall of the cutting table, and the grass collection port is provided in the grass discharge pipe; the first clamping structure and / or the second clamping structure includes a protrusion and a slot, the protrusion is provided on one of the handle and the grass discharge pipe, and the slot is provided on the other of the handle and the grass discharge pipe, and the protrusion is matched and plugged into the slot.

[0007] In one example of the lawn mower of the utility model, the baffle is rotatably connected to the grass discharge pipe through a rotating shaft, and a support portion is provided at the position where the grass discharge pipe is connected to the mowing chamber of the cutting table. When the baffle is in a closed position, one end of the baffle away from the rotating shaft overlaps the support portion.

[0008] In one example of the lawn mower of the utility model, the second clamping structure includes a wedge-shaped groove arranged on the handle and a wedge-shaped block arranged on the grass discharge pipe. When the handle is in the first position, the wedge-shaped groove and the wedge-shaped block are matched and clamped.

[0009] In one example of the lawn mower of the present invention, an elastic member is provided on the baffle or the grass discharge pipe to prevent the handle from rotating at the first position or the second position.

[0010] In an example of the lawn mower of the utility model, the switching mechanism also includes a support seat, which is rotatably connected to the handle, and the elastic member is pressed between the support seat and the handle. The support seat is pressed against the baffle under the elastic force of the elastic member.

[0011] In one example of the lawn mower of the present utility model, a movable guide structure is provided between the support seat and the handle.

[0012] In an example of the lawn mower of the present invention, the movable guide structure includes a guide portion provided on one of the support seat and the handle and a guide groove provided on the other one, and the guide portion slides along the guide groove.

[0013] In an example of the lawn mower of the utility model, the baffle is provided with a supporting inclined surface, and under the elastic force of the elastic member, the supporting seat abuts against the supporting inclined surface.

[0014] In an example of the lawn mower of the utility model, a side discharge port and a side baffle are also provided on the cutting platform. The side baffle is connected to the cutting platform, and the side baffle can cover the side discharge port.

[0015] The utility model also provides a mowing system, which includes a mower and a grass collecting bag; the mower includes: a frame, a cutting table and a switching mechanism; the cutting table is installed on the frame and includes a grass collecting port; the switching mechanism includes: a baffle and a handle, the baffle is rotatably installed in the grass collecting port; the handle is rotatably installed on the baffle, and moves between a first position and a second position to correspondingly drive the baffle to close or open the grass collecting port; when the handle reaches the first position, the handle cooperates with the first clamping structure to keep the baffle in the closed position; when the handle reaches the second position, the handle cooperates with the second clamping structure to keep the baffle in the open position; wherein, the grass collecting bag is installed on the frame and connected to the grass collecting port, so that grass collecting operations can be performed after the grass collecting port is opened.

[0016] The utility model lawn mower is provided with a baffle installed on the grass collecting port and a handle connected to the baffle is rotated, and the handle moves between a first position and a second position relative to the grass collecting port to drive the baffle to close or open the grass collecting port. With such a configuration, the baffle can be driven to move in the grass collecting port by operating the handle, thereby realizing the opening or closing of the grass collecting port, thereby realizing the conversion between the grass collecting and non-grass collecting working modes of the lawn mower; the structure is simple and convenient to operate, and in the conversion process, since there is no need to disassemble and assemble the baffle and other parts back and forth, the conversion time between the grass collecting and non-grass collecting working modes can be saved, and the working efficiency of the lawn mower can be further improved. At the same time, when the handle reaches the first position, the handle cooperates with the first clamping structure to keep the baffle in the closed position; when the handle reaches the second position, the handle cooperates with the second clamping structure to keep the baffle in the open position; such a configuration can respectively realize the locking of the baffle relative to the grass collecting port in the closed and open positions, and ensure the stability of the baffle closing or opening the grass collecting port during the operation of the lawn mower, thereby improving the stability of the working efficiency of the lawn mower in different working modes. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model. For ordinary technicians in this field, other embodiments can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a three-dimensional overall structural schematic diagram of an embodiment of the mowing system of the utility model;

[0019] Figure 2 It is a structural schematic diagram of a lawn mower according to an embodiment of the utility model when the side outlet in the cutting table is opened;

[0020] Figure 3 It is a structural schematic diagram of a lawn mower according to an embodiment of the utility model when the side discharge port in the cutting table is closed;

[0021] Figure 4 It is a schematic diagram of the installation position between the baffle and the handle when the baffle is in an open state in one embodiment of the lawn mower of the utility model;

[0022] Figure 5 It is a partial cross-sectional view of an embodiment of the lawn mower of the utility model when the baffle is in a closed state;

[0023] Figure 6 for Figure 2 A partial enlarged view of the middle A area;

[0024] Figure 7It is a schematic diagram of the partial structure of the first clamping groove on the grass discharge pipe in one embodiment of the lawn mower of the utility model;

[0025] Figure 8 It is a partial structural schematic diagram of a handle in an embodiment of the lawn mower of the utility model;

[0026] Fig. 9 It is a partial cross-sectional view of an embodiment of the lawn mower of the utility model when the baffle is in an open state;

[0027] Fig.10 for Fig. 9 A partial enlarged view of the middle C area;

[0028] Fig.11 This is a schematic diagram of the installation position between the handle and the support base in one embodiment of the lawn mower of the utility model;

[0029] Fig.12 for Figure 4 A partial enlarged view of the middle B area;

[0030] Fig.13 It is a partial structural schematic diagram of a baffle plate provided with a supporting inclined surface in one embodiment of the utility model lawn mower;

[0031] Fig.14 It is a schematic diagram of another angle installation position between the handle and the support base in one embodiment of the lawn mower of the utility model;

[0032] Fig.15 The figure is a schematic diagram of the installation position of the side discharge port on the shell in one embodiment of the lawn mower of the utility model.

[0033] Component number description

[0034] 1000, mowing system; 100, mowing machine; 10, frame; 20, cutting table; 21, grass discharge pipe; 211, first mounting port; 212, first rotating shaft; 213, second mounting port; 214, second rotating shaft; 22, side discharge port; 23, side baffle; 24, housing; 241, grass collection port; 25, mowing chamber; 26, shielding cover; 30, switching mechanism; 31, baffle; 311, supporting inclined plane; 32, Handle; 321, guide part; 322, second supporting surface; 33, first clamping structure; 331, first protrusion; 332, first clamping slot; 34, second clamping structure; 341, second protrusion; 344, second clamping slot; 35, elastic member; 36, supporting seat; 361, guide slot; 362, first supporting surface; 37, movable guiding structure; 40, supporting part; 50, seat; 200, grass collecting bag; 300, grass transport pipe. DETAILED DESCRIPTION

[0035] The following describes the implementation of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the following embodiments and the features in the embodiments can be combined with each other without conflict. It should also be understood that the terms used in the embodiments of the present invention are intended to describe specific implementation schemes, rather than to limit the scope of protection of the present invention. The test methods for which specific conditions are not specified in the following examples are usually carried out under conventional conditions or under the conditions recommended by the manufacturers.

[0036] When numerical ranges are given in the embodiments, it should be understood that unless otherwise specified in the present invention, both endpoints of each numerical range and any value between the two endpoints can be selected. Unless otherwise defined, all technical and scientific terms used in the present invention are in accordance with the prior art mastery of those skilled in the art and the description of the present invention, and any prior art methods, equipment and materials similar or equivalent to the methods, equipment and materials in the embodiments of the present invention can also be used to implement the present invention.

[0037] It should be noted that the terms such as "upper", "lower", "left", "right", "middle" and "one" cited in this specification are only for the convenience of description and are not used to limit the scope of implementation of the present utility model. Changes or adjustments to their relative relationships should be regarded as the scope of implementation of the present utility model without substantially changing the technical content.

[0038] See also Figures 1 to 15 The utility model provides a lawn mower 100 and a lawn mowing system 1000. The lawn mower 100 is provided with a baffle 31 and a handle 32 at the position of the grass collecting port 241. By operating the handle 32, the baffle 31 can be opened or closed relative to the grass collecting port 241, thereby realizing the conversion of the lawn mower 100 between different working modes. Therefore, the time occupied when converting between the grass collecting mode and the non-grass collecting mode can be saved, and the working efficiency of the lawn mower 100 is improved. At the same time, because the first clamping structure 33 and the second clamping structure 34 are provided, the stability of the baffle 31 in the closed and opened states can be guaranteed.

[0039] See also Figure 1The utility model provides a mowing system 1000, which includes a mower 100 and a grass collecting bag 200. The grass collecting bag 200 is installed on the mower 100, and the grass collecting bag 200 is connected to the mower 100. The connection method can be that the grass collecting bag 200 itself has an interface connected to the mower 100, or an interface is extended from the mower 100 to connect the grass collecting bag 200, or an additional grass conveying pipe 300 is provided, so that one end of the grass conveying pipe 300 is connected to the grass collecting bag 200, and the other end of the grass conveying pipe 300 is connected to the mower 100, so that the grass clippings cut by the mower 100 are transported to the grass collecting bag 200 through the grass conveying pipe 300 for centralized processing. In this embodiment, a grass conveying pipe 300 is provided between the grass collecting bag 200 and the grass discharge pipe 21, and the two ends of the grass conveying pipe 300 are respectively connected to the grass collecting bag 200 and the grass discharge pipe 21. The mowing system 1000 integrates the mower 100 and the grass collecting bag 200 into one body, has a compact structure, and can automatically and timely process grass clippings generated during mowing, thereby reducing the workload of workers on site. It should be noted that the specific installation structure of the grass collecting bag 200 and the grass conveying pipe 300 on the frame 10 in the present application can refer to the existing structure, and will not be described in detail here.

[0040] See also Figure 1 to Figure 2 , further describing the lawn mower 100 in the above embodiment, the lawn mower 100 includes: a frame 10, a cutting table 20 and a switching mechanism 30. A walking mechanism is arranged on the frame 10, and a seat 50 may or may not be arranged on the frame 10; in this embodiment, in order to improve the driving comfort of the driver, a seat 50 is installed on the frame 10; the specific structural form of the frame 10 is not limited. The walking mechanism is installed on the frame 10, and is used to drive the frame 10 to walk. The walking mechanism may include components such as a driving part and a power supply part. The power supply part provides energy for the driving part. The power part may be a battery, or an engine such as a diesel engine, a gasoline engine or an oil-electric hybrid engine; the driving part provides power for the rotation of the walking wheel, and the driving part may be a motor, a motor + a reducer, a motor + a gear rack transmission mechanism, or a motor + a screw nut transmission mechanism, or any transmission mechanism that can meet the requirements; the walking mechanism controls the frame 10 to perform corresponding walking actions. The cutting table 20 is installed on the frame 10. The installation position of the cutting table 20 on the frame 10 is not limited. For example, it can be installed at the front end of the frame 10, or in the middle of the frame 10, or at the rear end of the frame 10, as long as it can meet the installation requirements of the mowing operation.

[0041] See also Figure 2 and Figure 3, the cutting table 20 is further described. The cutting table 20 includes a shell 24 and a cutting blade. A mowing chamber 25 is formed inside the shell 24. The shell 24 is connected to the bottom end of the frame 10. The shell 24 can be fixedly connected to the frame 10 in the height direction, or can be movably connected to the frame 10 in the height direction. The specific connection method needs to be determined according to the working conditions of the lawn mower 100. A grass collecting port 241 is provided on the side wall of the shell 24 to connect the inside and outside of the mowing chamber 25. The grass collecting port 241 can be an opening structure integrally formed on the side wall of the shell 24, or can be a connecting pipe additionally provided on the side wall of the shell 24, and the connecting pipe is provided with the grass collecting port 241. Preferably, in this embodiment, a grass discharge pipe 21 is connected to the outer wall of the shell 24, and the grass discharge pipe 21 is connected to the mowing chamber 25. The grass collecting port 241 is provided on the grass discharge pipe 21. The grass discharge pipe 21 can be arranged on the side wall of the mowing chamber 25, or on the top wall of the mowing chamber 25, without limitation. In the present embodiment, the grass discharge pipe 21 is installed on the top wall of the mowing chamber 25. The specific cross-sectional shape and area of ​​the grass discharge pipe 21 are not limited, as long as the grass clippings after cutting can be discharged. The cutter is rotatably mounted on the housing 24 and is located in the mowing chamber 25. The rotational mounting method is not limited, and can be installed by motor rotation, motor + reducer rotation, motor + gear transmission, etc. When the cutter rotates, it cuts the grass in the mowing chamber 25 to achieve mowing operation.

[0042] See also Figures 2 to 6 , further describing the switching mechanism 30, the switching mechanism 30 includes a baffle 31 and a handle 32. A first mounting port 211 is provided on the upper wall of the grass discharge pipe 21, and a first rotating shaft 212 is fixedly connected to the first mounting port 211. One end of the baffle 31 in the length direction is rotatably connected to the first rotating shaft 212, and the other end of the baffle 31 in the length direction extends into the grass discharge pipe 21. The baffle 31 rotates in the grass discharge pipe 21 with the first rotating shaft 212 as the rotating shaft, and opens or closes the grass discharge pipe 21. The handle 32 is rotatably mounted on the baffle 31, and is located on a side of the baffle 31 close to the first rotating shaft 212. In other embodiments, the first rotating shaft 212 can also be rotatably connected to the first mounting port 211, and the baffle 31 can be fixedly connected to the first rotating shaft 212. When the baffle 31 rotates relative to the grass discharge pipe 21, the first rotating shaft 212 rotates relative to the first mounting port 211.

[0043] Specifically, see Figures 4 to 10The upper wall of the grass discharge pipe 21 is provided with a second mounting opening 213 near the first mounting opening 211. One end of the handle 32 in the length direction is rotatably connected to the second rotary shaft 214, and the other end of the handle 32 in the length direction is inserted into the second mounting opening 213 and extends to the outside of the grass discharge pipe 21. The handle 32 rotates relative to the baffle 31 with the second rotary shaft 214 as the rotation axis. At the same time, the handle 32 also moves up and down relative to the second mounting opening 213, thereby driving the baffle 31 to rotate up and down in the grass discharge pipe 21 with the first rotary shaft 212 as the rotation axis. The handle 32 has at least a first position and a second position relative to the grass discharge pipe 21. When the handle 32 is in the first position, the baffle 31 closes the grass discharge pipe 21 to the greatest extent, blocking the connection between the grass discharge opening 241 and the outside of the mowing chamber 25. At the same time, the handle 32 cooperates with the first clamping structure 33 to keep the baffle 31 in the closed position, so that the baffle 31 is locked relative to the grass discharge pipe 21 in the closed position; when the handle 32 is in the second position, the baffle 31 opens the grass discharge pipe 21 to the maximum extent, and restores the connection between the grass discharge port 241 and the mowing chamber 25. At the same time, the handle 32 cooperates with the second clamping structure 34 to keep the baffle 31 in the open position, so that the baffle 31 is locked relative to the grass discharge pipe 21 in the open position.

[0044] The lawn mower 100 in the embodiment of the present application only needs to operate the handle 32 to drive the baffle 31 to move in the grass discharge pipe 21, thereby realizing the connection or closure between the grass collecting port 241 and the outside of the mowing chamber 25, thereby realizing the conversion of the lawn mower 100 between the grass collecting and non-grass collecting working modes; this structure is easy to operate and has a simple structure. During the working mode conversion process, since there is no need to disassemble and assemble components such as the baffle 31 back and forth, the conversion time between the grass collecting and non-grass collecting working modes can be saved, thereby further improving the working efficiency of the lawn mower 100. At the same time, when the handle 32 reaches the first position, the handle 32 cooperates with the first clamping structure 33 to keep the baffle 31 in the closed position; when the handle 32 reaches the second position, the handle 32 cooperates with the second clamping structure 34 to keep the baffle 31 in the open position; this arrangement can respectively realize the locking of the baffle 31 relative to the grass discharge pipe 21 in the closed and open positions, thereby ensuring the stability of the baffle 31 in closing or opening the grass discharge pipe 21 during the operation of the lawn mower 100, thereby improving the stability of the operating efficiency of the lawn mower 100 in different working modes.

[0045] In an example of the lawn mower 100 of the present utility model, the first clamping structure 33 and / or the second clamping structure 34 include a protrusion and a slot, the protrusion is arranged on one of the handle 32 and the grass discharge pipe 21, and the slot is arranged on the other of the handle 32 and the grass discharge pipe 21, and the protrusion is matched and plugged into the slot. Specifically, in one embodiment, please refer to Figures 4 to 8The first clamping structure 33 includes a first protrusion 331 and a first clamping groove 332. The first protrusion 331 is arranged on the handle 32, and the first clamping groove 332 is arranged on the upper wall of the grass removal pipe 21. When the handle 32 is in the first position, the first protrusion 331 is clamped with the first clamping groove 332. The shapes of the first protrusion 331 and the first clamping groove 332 are not limited. For example, they can be a rectangular protrusion and a rectangular clamping groove structure, or a semicircular protrusion and a semicircular clamping groove structure, etc.; the specific number of the first protrusion 331 and the first clamping groove 332 is also not limited. In this embodiment, please refer to Figures 6 to 8 , there are two first protrusions 331, and the two first protrusions 331 are symmetrically arranged on both sides of the width direction of the handle 32. Correspondingly, there are also two first slots 332, which are respectively matched and engaged with the two first protrusions 331. In other embodiments, the first protrusion 331 can also be arranged on the grass discharge pipe 21, and the first slot 332 can be arranged on the handle 32. The second engaging structure 34 includes a second protrusion 341 and a second slot 342, the second protrusion 341 is arranged on the upper wall of the grass discharge pipe 21, and the second slot 342 is arranged on the handle 32. When the handle 32 is in the second position, the second protrusion 341 is engaged with the second slot 342. Similarly, there is no specific restriction on the shape and number of the second protrusion 341 and the second slot 342; in this embodiment, the number of the second protrusion 341 and the second slot 342 is one. In other embodiments, the second protrusion 341 can also be arranged on the handle 32, and the second slot 342 can be arranged on the grass discharge pipe 21.

[0046] It should be noted that, in other embodiments, one of the first clamping structure 33 and the second clamping structure 34 may be a clamping structure of a protrusion and a slot, and the other may be a plug-in positioning structure such as a positioning pin and a positioning hole, or other existing locking structures, etc., as long as the locking requirements between the handle 32 in the first position and the second position relative to the grass discharge pipe 21 can be met.

[0047] See also Figure 5 and Figure 6In an example of the utility model lawn mower 100, a support portion 40 is provided at the connection position between the grass discharge pipe 21 and the shell 24. The support portion 40 extends toward the inside of the grass discharge pipe 21 and is located at the end of the baffle 31 away from the first rotating shaft 212. When the baffle 31 is in the closed position, along the length direction of the baffle 31, the end of the baffle 31 away from the first rotating shaft 212 is at least partially overlapped on the support portion 40. The support portion 40 can be integrally formed and connected with the shell 24, or integrally formed and connected with the wall of the grass discharge pipe 21, or a separate part fixedly connected to the shell 24 or the grass discharge pipe 21 by fasteners such as bolts. In this embodiment, the support portion 40 is integrally formed and connected with the shell 24. By providing the support portion 40, when the baffle 31 is in the closed position, the end of the baffle 31 can be stably supported, so that the force condition of the first clamping structure 33 can be improved, and the stability of the baffle 31 in the closed position can be improved.

[0048] See also Fig. 9 and Fig.10 In an example of the utility model lawn mower 100, the second clamping structure 34 includes a second clamping groove 342 provided on the handle 32 and a second protrusion 341 provided on the grass discharge pipe 21. The second clamping groove 342 is a wedge-shaped groove, and the second protrusion 341 is a wedge-shaped block. When the handle 32 is in the first position, the wedge-shaped groove matches and clamps with the wedge-shaped block. The wedge-shaped groove is located on the side of the handle 32 away from the first rotary shaft 212, and the notch of the wedge-shaped groove faces the side of the handle 32 close to the second rotary shaft 214. The wedge-shaped block is located on the upper wall of the grass discharge pipe 21, and the top of the wedge-shaped block extends toward the outside of the grass discharge pipe 21. The wedge angle of the wedge block matches the wedge angle of the wedge groove.

[0049] When the grass discharge pipe 21 needs to be connected to the grass cutting chamber 25, the handle 32 is first rotated to make the first protrusion 331 on the handle 32 disengage from the first slot 332, and then the handle 32 is pulled upward, and the handle 32 drives the baffle 31 to rotate toward the upper wall of the grass discharge pipe 21 until the baffle 31 and the upper wall of the grass discharge pipe 21 are close to the limit position. At this time, as the handle 32 is pulled upward, the wedge-shaped groove on the handle 32 moves upward from the inside of the grass discharge pipe 21 to the outside of the grass discharge pipe 21 and is located obliquely above the wedge block; then the handle 32 is rotated in the direction close to the wedge block so that the wedge groove on the handle 32 rotates to just above the wedge block; finally, the handle 32 is released, and under the action of gravity of the baffle 31, the handle 32 moves downward, thereby making the wedge groove and the wedge block snap-fit ​​and connected, realizing the snap-fit ​​fixation between the handle 32 and the grass discharge pipe 21, thereby fixing the baffle 31 in the open position. A clamping structure of a wedge groove and a wedge block is adopted. During the clamping process, due to the existence of the gravity of the baffle 31, the wedge groove always produces a downward pressing force on the wedge block, so the stability of the clamping connection between the handle 32 and the grass discharge pipe 21 can be improved, thereby improving the stability of the baffle 31 in the open position.

[0050] Of course, in other embodiments, a wedge block may be provided on the handle 32, and a wedge groove may be provided on the grass discharge pipe 21, and the wedge block and the wedge groove may be matched and snap-fitted, thereby also achieving the beneficial effects of the above-mentioned embodiments.

[0051] See also Figures 9 to 12In an example of the utility model lawn mower 100, an elastic member 35 is provided on the baffle 31 to prevent the handle 32 from rotating at the first position or the second position. The elastic member 35 can be a tension spring, a compression spring or a leaf spring, etc., as long as it can prevent the handle 32 from rotating relative to the baffle 31 at the first position or the second position. In this embodiment, the elastic member 35 is a spring sheet structure, and the elastic member 35 is bent around the second rotating shaft 214 to form two bent edges, and the two bent edges are respectively in contact with the side of the baffle 31 close to the first rotating shaft 212 and the side of the handle 32 facing the first rotating shaft 212. When the handle 32 is in the first position, the elastic member 35 generates a thrust on the handle 32 away from the first rotating shaft 212, so that the first protrusion 331 on the handle 32 is pressed tightly in the first slot 332. When the handle 32 moves from the first position to the second position, the handle 32 is rotated toward the direction close to the elastic member 35, the first protrusion 331 is disengaged from the first slot 332, the handle 32 is pulled upward, and at the same time continues to rotate toward the side close to the elastic member 35, the elastic member 35 is compressed, and when the handle 32 reaches the second position, a thrust is again generated on the handle 32 away from the first rotary axis 212, so that the second protrusion 341 on the handle 32 is pressed tightly in the second slot 342. By providing the elastic member 35, not only can the rotation of the handle 32 between the first position and the second position be blocked, and the stability of the baffle 31 in the closed and open positions be improved, but also the handle 32 can be freely switched between the first position and the second position, and the structure is simple and the procurement cost is low.

[0052] It should be noted that, in other embodiments, the elastic member 35 may also be abutted and connected to the grass removal pipe 21 at one end and abutted and connected to the handle 32 at the other end, which can also play a role in preventing the handle 32 from rotating relative to the baffle 31 at the first position or the second position.

[0053] See also Figures 9 to 12In an example of the utility model lawn mower 100, the switching mechanism 30 further includes a support seat 36, the support seat 36 is rotatably connected to the handle 32, the elastic member 35 is pressed and abutted between the support seat 36 and the handle 32, and the support seat 36 is pressed and abutted against the baffle 31 under the elastic force of the elastic member 35. One end of the support seat 36 in the length direction is rotatably connected to the second rotary shaft 214, and the other end of the support seat 36 in the length direction passes through the second mounting opening 213 and extends to the outside of the grass discharge pipe 21. The support seat 36 is located on the side of the handle 32 facing the first rotary shaft 212, and the support seat 36 has a first support surface 362 on the side facing the handle 32, and the handle 32 has a second support surface 322 on the side opposite to the support seat 36. In this embodiment, the elastic member 35 is sleeved on the second rotary shaft 214 and is rotatably connected to the second rotary shaft 214. One end of the elastic member 35 is connected to the first support surface 362, and the other end of the elastic member 35 is connected to the second support surface 322. By providing the support seat 36, the installation structure of the elastic member 35 can be simplified and stable support can be provided for the elastic member 35.

[0054] See also Fig. 9 In an example of the utility model lawn mower 100, a movable guide structure 37 for guiding the movement between the handle 32 and the support seat 36 is provided between the support seat 36 and the handle 32. The movable guide structure 37 can be of various types. For example, the movable guide structure 37 can be a slide rail provided on the support seat 36, and a slider provided at a position corresponding to the handle 32. When the handle 32 and the support seat 36 move relative to each other, the slider slides along the slide rail, thereby playing a guiding role; or a guide groove 361 can be machined on the support seat 36, and a guide block is installed at a position corresponding to the handle 32. When the handle 32 and the support seat 36 move relative to each other, the guide block slides along the guide groove 361, thereby playing a guiding role. By providing the movable guide structure 37, the probability of lateral deviation during the relative movement of the handle 32 and the support seat 36 can be reduced, thereby increasing the service life of the elastic member 35 provided between the handle 32 and the support seat 36.

[0055] See also Fig.11In one example of the utility model lawn mower 100, the movable guide structure 37 includes a guide groove 361 provided on the support seat 36 and a guide portion 321 provided on the handle 32, and the guide portion 321 slides along the guide groove 361. Specifically, a guide groove 361 of approximately U-shaped structure is formed on the side of the support seat 36 facing the handle 32, and the notch of the guide groove 361 faces the guide portion 321 of the handle 32; the width of the guide portion 321 matches the width of the guide groove 361, and when the handle 32 rotates relative to the support seat 36, the guide portion 321 slides along the guide groove 361. In other embodiments, the guide groove 361 may be provided on the handle 32, and the guide portion 321 may be provided on the support seat 36, and the guide portion 321 may slide along the guide groove 361, which may also play a guiding role.

[0056] See also Fig.12 and Fig.13 In an example of the utility model lawn mower 100, the baffle plate 31 is provided with a support slope 311, and under the elastic force of the elastic member 35, the support seat 36 abuts against the support slope 311. The support slope 311 is located on the side of the support seat 36 facing the first rotary shaft 212, and the support slope 311 is close to the rotary axis of the support seat 36. By providing the support slope 311, on the one hand, the rotation of the support seat 36 can be limited, and on the other hand, the abutment area between the support seat 36 and the baffle plate 31 can be increased, thereby improving the support strength of the support seat 36.

[0057] Generally, the mowing chamber 25 has an open structure below. During the mowing operation of the mower 100, the grass clippings can be directly discharged to the working ground through the open structure below the mowing chamber 25. However, preferably, please refer to Fig.15 In one example of the utility model lawn mower 100, a side discharge port 22 is also provided on the side wall of the housing 24, and the side discharge port 22 is connected to the mowing chamber 25. The size and specific shape of the side discharge port 22 are determined by the specific grass discharge requirements of the lawn mower 100, and are not specifically limited here; in this embodiment, the side discharge port 22 is provided on the housing 24 close to the grass discharge pipe 21, and in other embodiments, it can also be provided at other positions. Preferably, please refer to Figure 3 , Fig. 9 and Fig.15In this embodiment, a shielding cover 26 and a side baffle 23 are also provided at the position of the side discharge port 22. The shielding cover 26 is fixedly connected to the housing 24 above the side discharge port 22 by, but not limited to, bolts, and the shielding cover 26 extends in the direction away from the outer wall of the housing 24 to form a certain degree of shielding above the side discharge port 22, thereby reducing the probability of grass clippings and dust splashing during the discharge of grass clippings from the side discharge port 22, thereby reducing the dust phenomenon during the grass discharge process. The side baffle 23 is rotatably connected to the housing 24 above the side discharge port 22, and the side baffle 23 can open or close the side discharge port 22.

[0058] In the lawn mower 100 of the present invention, when the lawn mower 100 needs to perform non-grass collecting operations, such as grass chopping or side grass discharge, the baffle 31 is in the closed position, and the first protrusion 331 is engaged in the first slot 332; when the lawn mower 100 needs to perform grass collecting operations, the baffle 31 needs to be opened to connect the grass discharge pipe 21 with the mowing chamber 25; at this time, the handle 32 is first rotated to make the first protrusion 331 disengage from the first slot 332, and then the handle 32 is pulled upward to drive the baffle 31 to rotate from the closed position to the open position. When the baffle 31 reaches the open position, the handle 32 is rotated in the opposite direction to make the second slot 342 close to the second protrusion 341, and then the handle 32 is released. Under the action of gravity of the baffle 31, the second slot 342 is engaged with the second protrusion 341, so that the handle 32 is fixed in the second position, thereby fixing the baffle 31 in the open position, and realizing the rear grass collecting operation mode of the lawn mower 100. The lawn mower 100 only needs to operate the handle 32 to drive the baffle 31 to move in the grass discharge pipe 21, thereby realizing the opening or closing of the grass discharge pipe 21, thereby realizing the conversion of the grass collection and non-grass collection working modes of the lawn mower 100; the operation is convenient, the structure is simple, and the operation is convenient. In the conversion process, because there is no need to disassemble and assemble the baffle 31 and other parts back and forth, the conversion time between the grass collection and non-grass collection working modes can be saved; further improve the working efficiency of the lawn mower 100. Therefore, the utility model effectively overcomes some practical problems in the prior art and has a high utilization value and use significance. The above embodiments are only illustrative of the principles and effects of the utility model, and are not used to limit the utility model. Anyone familiar with this technology can modify or change the above embodiments without violating the spirit and scope of the utility model. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the relevant technical field without departing from the spirit and technical ideas disclosed by the utility model should still be covered by the claims of the utility model.

Claims

1. A lawn mower, characterized in that: include: frame; A cutting platform, which is mounted on the frame and includes a grass collecting port; A switching mechanism, the switching mechanism comprising: A baffle, rotatably mounted in the grass collecting opening; A handle, the handle is rotatably mounted on the baffle plate and moves between a first position and a second position to correspondingly drive the baffle plate to close or open the grass collecting port; When the handle reaches the first position, the handle cooperates with the first clamping structure to keep the baffle in the closed position; when the handle reaches the second position, the handle cooperates with the second clamping structure to keep the baffle in the open position.

2. The lawn mower according to claim 1, characterized in that A grass discharge pipe is arranged on the outer wall of the cutting table, and the grass collecting port is arranged on the grass discharge pipe; the first clamping structure and / or the second clamping structure include a protrusion and a slot, the protrusion is arranged on one of the handle and the grass discharge pipe, and the slot is arranged on the other of the handle and the grass discharge pipe, and the protrusion is matched and plugged into the slot.

3. The lawn mower according to claim 2, characterized in that The baffle is rotatably connected to the grass discharge pipe via a rotating shaft. A support portion is provided at the position where the grass discharge pipe is connected to the mowing chamber of the cutting table. When the baffle is in a closed position, one end of the baffle away from the rotating shaft overlaps the support portion.

4. The lawn mower according to claim 2, characterized in that The second clamping structure includes a wedge-shaped groove arranged on the handle and a wedge-shaped block arranged on the grass discharge pipe. When the handle is in the first position, the wedge-shaped groove and the wedge-shaped block are matched and clamped.

5. The lawn mower according to claim 2, characterized in that: An elastic member is provided on the baffle or the grass discharge pipe to prevent the handle from rotating at the first position or the second position.

6. The lawn mower according to claim 5, characterized in that The switching mechanism also includes a support seat, which is rotatably connected to the handle. The elastic member is pressed and abutted between the support seat and the handle. The support seat is pressed and abutted against the baffle under the elastic force of the elastic member.

7. The lawn mower according to claim 6, characterized in that A movable guiding structure is arranged between the supporting seat and the handle.

8. The lawn mower according to claim 7, characterized in that The movable guide structure includes a guide portion provided on one of the support seat and the handle and a guide groove provided on the other one thereof, and the guide portion slides along the guide groove.

9. The lawn mower according to claim 6, characterized in that The baffle is provided with a supporting inclined surface, and under the elastic force of the elastic member, the supporting seat abuts against the supporting inclined surface.

10. The lawn mower according to claim 1, characterized in that The cutting platform is also provided with a side discharge port and a side baffle, wherein the side baffle is connected to the cutting platform and can shield the side discharge port.

11. A mowing system, characterized in that: include: Grass collection bags; A lawn mower, comprising: frame; A cutting platform, which is mounted on the frame and includes a grass collecting port; A switching mechanism, the switching mechanism comprising: a baffle and a handle, the baffle being rotatably mounted in the grass collecting opening; the handle being rotatably mounted on the baffle and moving between a first position and a second position to correspondingly drive the baffle to close or open the grass collecting opening; when the handle reaches the first position, the handle cooperates with a first clamping structure to keep the baffle in the closed position; when the handle reaches the second position, the handle cooperates with a second clamping structure to keep the baffle in the open position; The grass collecting bag is installed on the frame and connected to the grass collecting port so as to perform grass collecting operation after the grass collecting port is opened.

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