Grass discharging mechanism and mower

Abstract

The invention discloses a grass discharging mechanism and a mower, and the grass discharging mechanism comprises a cutter head assembly which comprises a cutter head defined by a side plate and a top plate, and the top plate and the side plate are provided with openings; the first end of the first grass collecting channel at least covers the opening in the top plate, so that the first grass collecting channel is communicated with the interior of the cutter head; the grass collecting cover plate is movably arranged on the first grass collecting channel, and the movable grass collecting cover plate covers the opening in the side plate at a preset position and opens the opening in the side plate at other positions except the preset position; the side guide groove plate is arranged at the opening of the side plate and comprises a side guide groove communicated with the opening of the side plate, and the end part of the side guide groove plate extends towards the cutter head and at least covers the opening in the top plate; the grass chopping cover plate is arranged at the opening of the side plate and at least covers the opening of the top plate and the opening of the side plate. Various grass discharging functions are integrated, the functions can be flexibly and reliably switched, and a user can select a proper grass discharging mode according to specific requirements.

Description

Technical Field

[0001] This application relates to the technical field of lawn mowers, and particularly to a grass discharging mechanism and a lawn mower. Background Art

[0002] As a garden tool, lawn mowers are widely used in fields such as lawn trimming and vegetation trimming. Currently, there are roughly three ways to discharge grass after mowing by lawn mowers. One is the most common rear grass discharging method, where the cut grass is discharged from the rear of the grass discharging mechanism; the second is the side grass discharging method, where the cut grass is discharged from the side of the grass discharging mechanism; the third is the grass crushing method, in which the grass is crushed and then the grass clippings can be collected by a grass collection bag for subsequent processing.

[0003] The grass discharging mechanism of existing lawn mowers has a relatively single function and cannot integrate the above three grass discharging methods, resulting in users being unable to select a suitable grass discharging method according to specific needs.

[0004] Therefore, in view of the above technical problems, how to simultaneously satisfy the grass discharging methods of grass crushing, rear grass discharging, and side grass discharging is a technical problem that those skilled in the art need to solve. Summary of the Invention

[0005] The purpose of this application is to provide a grass discharging mechanism and a lawn mower. The grass discharging mechanism integrates multiple grass discharging functions, and the functions can be flexibly and reliably switched. Users can select a suitable grass discharging method according to specific needs.

[0006] To achieve the above purpose, this application provides a grass discharging mechanism, including:

[0007] A cutter head assembly, including a cutter head formed by enclosing a side plate and a top plate, and openings are provided on the top plate and the side plate;

[0008] A first grass collection channel, whose first end at least covers the opening on the top plate, so that the first grass collection channel is communicated with the inside of the cutter head;

[0009] A grass collection cover plate, which is movably arranged on the first grass collection channel. The movable grass collection cover plate covers the opening on the side plate at a preset position and opens the opening on the side plate at other positions except the preset position;

[0010] A side guide groove plate, which is arranged at the opening of the side plate, includes a side guide groove communicated with the opening of the side plate, and the end of the side guide groove plate extends towards the cutter head and at least covers the opening on the top plate;

[0011] A grass crushing cover plate, which is arranged at the opening of the side plate and at least covers the openings on the top plate and the side plate.

[0012] Preferably, the second end of the first grass collection channel is connected with a second grass collection channel, and the second grass collection channel is externally connected to a grass collection box.

[0013] Preferably, the second grass collection channel is arranged on the frame of the lawn mower through a limit bracket. The second grass collection channel is inserted into the first grass collection channel, and a plurality of tensioning devices for connecting the two are arranged on the outer peripheries of the first grass collection channel and the second channel.

[0014] Preferably, the tensioning device includes a first fixing member fixed on the first grass collection channel, a second fixing member fixed on the second grass collection channel, and a tensioning rubber strip connecting the first fixing member and the second fixing member. Limiting holes sleeved on the outer peripheries of the first fixing member and the second fixing member are arranged at both ends of the tensioning rubber strip, and the tensioning rubber strip has a tensioning force for making the first fixing member and the second fixing member approach each other.

[0015] Preferably, a rotating member for the grass collection cover plate to move is arranged on the outer wall of the first grass collection channel. The rotating member includes:

[0016] A fixed bracket, which is fixedly arranged on the first grass collection channel, and side brackets protruding towards the same side are arranged at both ends of the fixed bracket;

[0017] A support shaft, both ends of which are arranged on the two side brackets, and the grass collection cover plate is rotationally connected to the support shaft so that the grass collection cover plate rotates with the axis of the support shaft as the rotation axis;

[0018] A torsion spring, which is sleeved on the outer periphery of the support shaft. One end of the torsion spring is fixedly connected to the fixed bracket or the first grass collection channel, and the other end is connected to the grass collection cover plate. The torsion spring has an initial torsion force for providing a torsion force for the grass collection cover plate to rotate towards the opening on the side plate.

[0019] Preferably, an extension end extending towards the cutter disc is arranged at the first end of the first grass collection channel. The extension end abuts against the cutter disc, and a side opening corresponding to the opening on the side plate is opened on the extension end. The grass collection cover plate covers the side opening at the preset position.

[0020] Preferably, a clamping groove is arranged at one end of the side guide groove plate and / or the grass shredding cover plate covering the opening on the top plate, and a support ear matched with the clamping groove is arranged on the top plate.

[0021] Preferably, the grass collection cover plate abuts against the side guide groove plate or the grass shredding cover plate, and the grass collection cover plate with torsion force is used to provide a pressing force for pressing the side guide groove plate or the grass shredding cover plate on the cutter disc.

[0022] Preferably, a locking component is provided on the grass collecting cover plate. The locking component includes a locking tongue and a return spring connected to the locking tongue. The other end of the return spring abuts against the grass collecting cover plate. The locking tongue includes a hook-shaped portion extending into the side opening and engaging with the inner edge of the side opening to restrict the grass collecting cover plate from detaching from the extension end, and there is a position where the movable locking tongue can disengage the hook-shaped portion from the inner edge of the side opening.

[0023] A lawn mower includes the grass discharging mechanism described above.

[0024] Compared with the above background art, in the present application, openings are provided on the top plate and the side plate of the cutter head. The first end of the first grass collecting channel is arranged at the opening of the top plate, so that the first grass collecting channel communicates with the inside of the cutter head. When the rear grass discharging mode is selected, through the movable grass collecting cover plate, the grass collecting cover plate covers the opening on the side plate at a preset position, and the cut grass is discharged backward through the first grass collecting channel. When the side grass discharging mode is selected, the movable grass collecting cover plate can open the opening on the side plate. By providing a side guide groove plate at the opening of the side plate, the side guide groove of the side guide groove plate communicates with the opening of the side plate. At the same time, the end of the side guide groove plate can cover the opening on the top plate, thereby blocking the communication between the first grass collecting channel and the inside of the cutter head, so that the cut grass enters the side guide groove plate through the opening of the side plate to achieve side grass discharging. When the grass crushing mode is selected, the movable grass collecting cover plate opens the opening on the side plate, and the grass crushing cover plate is arranged at the opening of the side plate and can cover the openings on the top plate and the side plate, so that the openings on the cutter head are in a closed state to achieve grass crushing inside the cutter head. The present application integrates three grass discharging modes, and the switching between each mode is flexible and reliable, allowing users to select different grass discharging modes according to actual situations. Description of the Drawings

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to the provided drawings.

[0026] Figure 1 It is a schematic structural diagram of the grass discharging mechanism provided by the embodiment of the present application;

[0027] Figure 2 It is another state structural diagram of the grass discharging mechanism provided by the embodiment of the present application;

[0028] Figure 3 It is another perspective structural diagram of the grass discharging mechanism provided by the embodiment of the present application;

[0029] Figure 4Schematic diagram of the tensioning device provided by the embodiment of the present application;

[0030] Figure 5 Schematic diagram of the first implementation mode of the first and second fixing parts provided by the embodiment of the present application;

[0031] Figure 6 Schematic diagram of the fixing structure of the first implementation mode of the first and second fixing parts provided by the embodiment of the present application;

[0032] Figure 7 Schematic diagram of the second implementation mode of the first and second fixing parts provided by the embodiment of the present application;

[0033] Figure 8 Schematic diagram of the fixing structure of the second implementation mode of the first and second fixing parts provided by the embodiment of the present application;

[0034] Figure 9 Schematic diagram of the setting structure of the rotating part and the locking component provided by the embodiment of the present application;

[0035] Figure 10 Schematic diagram of the rotating part provided by the embodiment of the present application;

[0036] Figure 11 Schematic diagram of the locking component provided by the embodiment of the present application;

[0037] Figure 12 Schematic diagram of the internal structure of the locking component provided by the embodiment of the present application;

[0038] Figure 13 Schematic diagram of the cutter head provided by the embodiment of the present application;

[0039] Figure 14 Schematic diagram of the side guide groove plate provided by the embodiment of the present application;

[0040] Figure 15 Schematic diagram of the cooperation structure between the side guide groove plate and the cutter head provided by the embodiment of the present application;

[0041] Figure 16 Schematic diagram of the straw crushing cover plate provided by the embodiment of the present application;

[0042] Figure 17 Schematic diagram of the cooperation structure between the straw crushing cover plate and the cutter head provided by the embodiment of the present application.

[0043] In the figure: 01 - vehicle frame; 02 - limit bracket;

[0044] 1 - cutter head; 2 - first grass collecting channel; 3 - second grass collecting channel; 4 - grass collecting box; 5 - tensioning device; 6 - grass collecting cover plate; 7 - side guide groove plate; 8 - straw crushing cover plate;

[0045] 11 - Top plate; 12 - Side plate; 13 - Lugs;

[0046] 21 - Extension end; 22 - Side opening;

[0047] 51 - First fixing member; 52 - Second fixing member; 53 - Tension rubber strip; 54 - Limit hole; 511 - Spacer; 512 - Bushing; 513 - Cap nut; 514 - Screw; 521 - T - shaped screw; 522 - Locking nut;

[0048] 61 - Rotating member; 62 - Locking component; 611 - Fixed bracket; 612 - Side bracket; 613 - Support shaft; 614 - Torsion spring; 621 - Locking pressure plate; 622 - Lock tongue; 623 - Hook - shaped part; 624 - Return spring;

[0049] 71 - Card slot. Detailed implementation manners

[0050] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0051] It should be noted that in this embodiment, the orientation or positional relationship indicated by "up", "down", "front", "back", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application. In addition, "first", "second", "third", "fourth" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0052] In order to enable those skilled in the art of this technology to better understand the solution of the present application, the present application will be further described in detail below in conjunction with the accompanying drawings and specific implementation manners.

[0053] As Figure 1 shown, in this embodiment, a grass - discharging mechanism is provided. The mechanism includes a cutter head assembly, a first grass - collecting channel 2, a grass - collecting cover plate 6, a side guide groove plate 7, a grass - crushing cover plate 8, etc. The cutter head assembly includes a cutter head 1 formed by enclosing a side plate 12 and a top plate 11. Please refer to Figure 13 . The lower side of the cutter head 1 is open, allowing the grass to be trimmed to enter the inside of the cutter head 1 and cooperating with the blades in the cutter head assembly to achieve grass cutting. The blades can be arranged on the top plate 11 of the cutter head 1, and the cutting part of the blades is located inside the cutter head 1. Details are not described here and can be specifically referred to the prior art.

[0054] Please refer to Figure 13 , openings are provided on the top plate 11 and the side plate 12 of the cutter head 1. Among them, the openings can be a connected integral opening, or two openings separately provided on the top plate 11 and the side plate 12. There is no excessive limitation here, and both fall within the protection scope of this application. And the first end of the first grass collection channel 2 at least covers the opening on the top plate 11, so that the crushed grass in the cutter head 1 can enter the first grass collection channel 2 through the opening on the top plate 11, and then the grass is discharged backward by the first grass collection channel 2. Of course, the first end of the first grass collection channel 2 can also cover a part of the opening on the side plate 12, and the grass can be discharged backward through the openings on the top plate 11 and the side plate 12 together.

[0055] However, it should be noted that when the side grass discharge method is carried out, if the first end of the first grass collection channel 2 also covers a part of the opening on the side plate 12, then on the basis of covering the opening on the top plate 11, the side guide groove plate 7 also needs to cover a part of the opening on the side plate 12 corresponding to the first grass collection channel 2 to prevent the crushed grass from entering the first grass collection channel 2 through this part of the opening, and ensure that only the side grass discharge method is carried out.

[0056] The grass collection cover plate 6 is movably arranged on the first grass collection channel 2. The moving method can be rotation, sliding, etc. There is no excessive limitation here. Ensure that there is at least one preset position for the movable grass collection cover plate 6 so that the grass collection cover plate 6 can cover the opening on the side plate 12, so that the crushed grass cannot be discharged from the opening on the side plate 12. At this time, the inside of the cutter head 1 is only connected to the first grass collection channel 2, so as to realize the rear grass discharge method.

[0057] When the movable grass collection cover plate 6 moves to other positions except the above preset position, the grass collection cover plate 6 cannot cover the opening on the side plate 12. At this time, the opening on the side plate 12 is in an open state; in this case, different grass discharge functions can be realized by installing the side guide groove plate 7 or the crushed grass cover plate 8.

[0058] Specifically, when the opening on the side plate 12 is in an open state, a side guide groove plate 7 can be set at the opening on the side plate 12. Please refer to Figure 1 , the side guide groove plate 7 includes a side guide groove communicating with the opening on the side plate 12. When the side guide groove plate 7 is assembled in place, the side guide groove can communicate with the opening on the side plate 12, and the end of the side guide groove plate 7 can extend toward the cutter head 1, so that the end of the side guide groove plate 7 at least covers the opening on the top plate 11. Of course, the side guide groove plate 7 can also cover a part of the opening on the side plate 12, so as to completely block the connection between the first grass collection channel 2 and the inside of the cutter head 1. Thus, under the action of the side guide groove plate 7, only the side grass discharge method is realized.

[0059] Furthermore, when the opening on the side plate 12 is in an open state, a crushed grass cover plate 8 can also be set at the opening on the side plate 12, asFigure 2 and Figure 17 As shown in Figure 17 , the straw crushing cover plate 8 can cover the openings on the top plate 11 and the side plates 12, so that the inside of the cutter head 1 cannot communicate with the outside through the openings on the top plate 11 or the side plates 12, and thus the crushed straw is only located inside the cutter head 1, realizing the straw discharging method of the crushed straw.

[0060] In summary of the above embodiments, this application sets openings on the top plate 11 and the side plates 12 of the cutter head 1, and the first end of the first straw collecting channel 2 is arranged at the opening of the top plate 11, so that the first straw collecting channel 2 is communicated with the inside of the cutter head 1; when the rear straw discharging method is selected, through the movable straw collecting cover plate 6, the straw collecting cover plate 6 is closed with the opening on the side plate 12 at the preset position, and the cut grass is discharged backward through the first straw collecting channel 2; when the side straw discharging method is selected, the movable straw collecting cover plate 6 can open the opening on the side plate 12, and by arranging the side guide groove plate 7 at the opening of the side plate 12, the side guide groove of the side guide groove plate 7 is communicated with the opening of the side plate 12, and at the same time, the end of the side guide groove plate 7 can cover the opening on the top plate 11, so as to block the communication between the first straw collecting channel 2 and the inside of the cutter head 1, and make the cut grass enter the side guide groove plate 7 through the opening of the side plate 12 to realize side straw discharging; when the straw crushing method is selected, the movable straw collecting cover plate 6 can open the opening on the side plate 12, the straw crushing cover plate 8 is arranged at the opening of the side plate 12, and the straw crushing cover plate 8 can cover the openings on the top plate 11 and the side plates 12, so that the opening on the cutter head 1 is in a closed state, realizing straw crushing inside the cutter head 1. This application integrates three straw discharging methods, and the switching between each method is flexible and reliable, and users can select different straw discharging methods according to the actual situation.

[0061] In addition, please refer to Figures 1 to 3 , a second straw collecting channel 3 is connected to the second end of the first straw collecting channel 2, and the two are detachably connected, and the second straw collecting channel 3 can be externally connected to a straw collecting box 4. When the rear straw discharging method is carried out, the crushed straw can enter the straw collecting box 4 through the first straw collecting channel 2 and the second straw collecting channel 3.

[0062] In some embodiments, the second straw collecting channel 3 can be arranged on the frame 01 of the mower through a limiting bracket 02. Please refer to Figure 3 , the specific setting method between the frame 01 and the limit can refer to the prior art, which will not be elaborated here. It is only necessary to ensure that the first straw collecting channel 2 and the second straw collecting channel 3 will not interfere with the tires or other surrounding parts during movement.

[0063] The second straw collecting channel 3 can be communicated with the first straw collecting channel 2 in a plug-in manner, that is, one end of the second straw collecting channel 3 is plugged into the second end of the first straw collecting channel 2, and a plurality of tensioning devices 5 are arranged on the outer periphery at the plugging position, so that the first straw collecting channel 2 and the second straw collecting channel 3 can have a stable connection effect.

[0064] Further, the tensioning device 5 can be distributed around the first grass collecting channel 2 and the second grass collecting channel 3. Please refer to Figure 4 , the tensioning device 5 includes a first fixing member 51, a second fixing member 52 and a tensioning rubber strip 53. The first fixing member 51 is fixed on the first grass collecting channel 2, the second fixing member 52 is fixed on the second grass collecting channel 3, and the tensioning rubber strip 53 connects the first fixing member 51 and the second fixing member 52. By using the tensioning force of the tensioning rubber strip 53, the first grass collecting channel 2 and the second grass collecting channel 3 are tightly connected to ensure the connection stability. Simply put, the first fixing member 51 and the second fixing member 52 can provide connection points for the first grass collecting channel 2 and the second grass collecting channel 3, and the tensioning rubber strip 53 stably connects the first grass collecting channel 2 and the second grass collecting channel 3 through two connection points.

[0065] In addition, the first fixing member 51 and the second fixing member 52 can be the first type of screw fastener as shown in Figure 5 , or can be the second type of screw fastener as shown in Figure 7 . Among them, for both forms of screw fasteners, the head needs to be embedded in the channel walls of the first grass collecting channel 2 and the second grass collecting channel 3, and the rod part of the screw fastener protrudes from the channel wall, so as to provide a stable connection point for the tensioning rubber strip 53. In the first type of screw fastener, it includes a screw 514. The head of the screw 514 is provided with a double-layer gasket 511. Please refer to Figure 6 , the double-layer gasket 511 can be clamped on both sides of the channel wall. The rod part of the screw 514 is located outside the channel, and a bushing 512 is sleeved on the outer periphery of the rod part. Both ends of the tensioning rubber strip 53 are provided with limit holes 54 sleeved on the outer periphery of the bushing 512, so as to provide a tensioning force for the two fixing members to approach each other. A cap nut 513 is provided on the rod part of the screw 514 to prevent the tensioning rubber strip 53 from falling off the fixing member.

[0066] In the second type of screw fastener, it includes a T-shaped screw 521. Please refer to Figure 7 and Figure 8 , the head of the T-shaped screw 521 is embedded in the channel wall, so that the T-shaped screw 521 is fixedly arranged. A locking nut 522 is provided on the T-shaped screw 521 to prevent the tensioning rubber strip 53 from falling off the fixing member. Of course, a bushing 512 can also be provided on the rod part of the T-shaped screw 521 to prevent the tensioning rubber strip 53 from directly rubbing against the rod part of the T-shaped screw 521. It should be noted that for the setting methods of the first fixing member 51 and the second fixing member 52, including but not limited to the above two types of screw fasteners, as long as they can provide a stable connection point for the tensioning rubber strip 53, so that the first grass collecting channel 2 and the second grass collecting channel 3 can be stably and detachably connected, they all fall within the protection scope of this application.

[0067] In the embodiment of this application, a rotating member 61 for the grass collecting cover plate 6 to move is provided on the outer wall of the first grass collecting channel 2. Please refer to Figure 9 and Figure 10, the rotating member 61 includes a fixed bracket 611, a support shaft 613 and a torsion spring 614. The fixed bracket 611 is fixedly arranged on the first grass collecting channel 2, and side brackets 612 extending or protruding towards the same side are arranged at both ends of the fixed bracket 611. Both ends of the support shaft 613 are arranged on the two side brackets 612, which can be fixedly connected or rotatably connected, and there is no excessive limitation here. The grass collecting cover plate 6 can be rotatably connected to the support shaft 613, and an interference fit method can be adopted to reduce the rotational friction force between the grass collecting cover plate 6 and the support shaft 613, so as to ensure that the grass collecting cover plate 6 can rotate stably with the axis of the support shaft 613 as the rotation axis.

[0068] The torsion spring 614 is sleeved on the outer periphery of the support shaft 613. One end of the torsion spring 614 is fixedly connected to the fixed bracket 611 or the first grass collecting channel 2, and the other end is connected to the grass collecting cover plate 6. The torsion spring 614 has an initial torsion force for providing a torsion force for the grass collecting cover plate 6 to rotate towards the opening on the side plate 12; when the rear grass discharging method is adopted, under the action of the torsion spring 614, the grass collecting cover plate 6 has a pressing force for pressing against the opening of the side plate 12 to prevent the crushed grass from being accidentally discharged through the opening of the side plate 12. When the side grass discharging method is adopted, the grass collecting cover plate 6 can also be in contact with the side guide groove plate 7, and the grass collecting cover plate 6 with torsion force can provide a pressing force for pressing the side guide groove plate 7 against the cutter head 1 to improve the setting stability of the side guide groove plate 7; similarly, when the grass crushing method is adopted, the grass collecting cover plate 6 can also be in contact with the grass crushing cover plate 8, and the grass collecting cover plate 6 with torsion force can provide a pressing force for pressing the grass crushing cover plate 8 against the cutter head 1 to improve the setting stability of the grass crushing cover plate 8.

[0069] Please refer to Figure 2 , in some embodiments, the first end of the first grass collecting channel 2 is also provided with an extending end 21 extending towards the cutter head 1. The extending end 21 is in contact with the cutter head 1, and the extending end 21 has an inner contour adapted to the outer contour of the cutter head 1, so that the extending end 21 can be stably in contact with the cutter head 1 and has a certain sealing effect to prevent the crushed grass from being discharged through the gap between the first grass collecting channel 2 and the cutter head 1.

[0070] A side opening 22 corresponding to the opening on the side plate 12 is opened on the extending end 21, and the grass collecting cover plate 6 can cover the side opening 22 of the extending end 21 at the above-mentioned preset position, so as to close the opening on the side plate 12.

[0071] When using the side guide groove plate 7 and the grass crushing cover plate 8, it is necessary to cover the openings on the top plate 11 at the ends of the side guide groove plate 7 and the grass crushing cover plate 8 to prevent the crushed grass from entering the first grass collecting channel 2 through the openings on the top plate 11. To further improve the setting stability of the side guide groove plate 7 and the grass crushing cover plate 8, a clamping groove 71 can be provided at one end of the side guide groove plate 7 and / or the grass crushing cover plate 8 that covers the opening on the top plate 11. Please refer to Figure 14 and Figure 16, on the top plate 11, there are provided supporting lugs 13 that are engaged and clamped with the clamping grooves 71. Please refer to Figure 15 and Figure 17 , the side guide groove plate 7 and the straw crushing cover plate 8 can be hung on the supporting lugs 13, and with the pressing effect of the grass collecting cover plate 6, the side guide groove plate 7 and the straw crushing cover plate 8 are stably arranged.

[0072] Furthermore, on the grass collecting cover plate 6, there is also provided a lock assembly 62. The lock assembly 62 and the rotating member 61 are respectively arranged on both sides. Please refer to Figure 9 、 Figure 11 and Figure 12 , the lock assembly 62 includes a lock tongue 622 and a return spring 624 connected to the lock tongue 622. The lock tongue 622 can be embedded in the grass collecting cover plate 6. At the end of the lock tongue 622, there is a hook-shaped portion 623, and the hook-shaped portion 623 is exposed relative to the grass collecting cover plate 6. One end of the return spring 624 abuts against the grass collecting cover plate 6, and the other end abuts against the grass collecting cover plate 6, so as to provide an elastic force for the lock tongue 622 to extend outwards. When the movable grass collecting cover plate 6 rotates to the opening of the side plate 12, the hook-shaped portion 623 can extend into the side opening 22 of the extension end 21, and the hook-shaped portion 623 can be engaged with the inner edge of the side opening 22, thereby preventing the grass collecting cover plate 6 from detaching from the extension end 21 of the first grass collecting channel 2, and cooperating with the rotating assembly on the other side of the grass collecting cover plate 6 to form a stable connection structure between the grass collecting cover plate 6 and the extension end 21; and after the movable lock tongue 622 is compressed inwards, it can disengage from the inner edge of the side opening 22, thereby disengaging the engagement, so that the grass collecting cover plate 6 can move freely again. In addition, the lock assembly 62 further includes a lock buckle pressing plate 621 that covers the lock tongue 622 and the return spring 624, so that the lock tongue 622 and the return spring 624 have a relatively enclosed space to isolate the interference of external weeds.

[0073] This application also provides a lawn mower, which includes the above-mentioned grass discharging mechanism, and also includes components such as an engine, a traveling mechanism, a handrail, and a control part, etc. which will not be elaborated here and all fall within the protection scope of this application.

[0074] It should be noted that in this specification, relational terms such as first and second are only used to distinguish one entity from several other entities, and do not necessarily require or imply any such actual relationship or order between these entities.

[0075] In this article, specific examples are used to elaborate on the principle and implementation manner of this application. The description of the above embodiments is only used to help understand the method and its core idea of this application. It should be pointed out that for those of ordinary skill in the art in this technical field, without departing from the principle of this application, several improvements and modifications can still be made to this application, and these improvements and modifications also fall within the protection scope of the claims of this application.

Claims

1. A herb arranging mechanism, characterized in that, Comprising: A cutter head assembly, including a cutter head (1) formed by enclosing a side plate (12) and a top plate (11), and openings are provided on the top plate (11) and the side plate (12); A first grass collection channel (2), the first end of which at least covers the opening on the top plate (11), so that the first grass collection channel (2) is communicated with the inside of the cutter head (1); A grass collection cover plate (6), movably arranged on the first grass collection channel (2), and the movable grass collection cover plate (6) covers the opening on the side plate (12) at a preset position and opens the opening on the side plate (12) at other positions except the preset position; A side guide groove plate (7), arranged at the opening of the side plate (12), including a side guide groove communicated with the opening of the side plate (12), and the end of the side guide groove plate (7) extends towards the cutter head (1) and at least covers the opening on the top plate (11); A grass crushing cover plate (8), arranged at the opening of the side plate (12) and at least covering the openings of the top plate (11) and the side plate (12).

2. The herb arranging mechanism according to claim 1, wherein The second end of the first grass collection channel (2) is connected with a second grass collection channel (3), and the second grass collection channel (3) is externally connected with a grass collection box (4).

3. The herb arranging mechanism according to claim 2, characterized in that, The second grass collection channel (3) is arranged on the frame (01) of the mower through a limit bracket (02), the second grass collection channel (3) is inserted into the first grass collection channel (2), and a plurality of tensioning devices (5) for connecting the two are arranged on the outer circumferences of the first grass collection channel (2) and the second channel.

4. The herb arranging mechanism according to claim 3, characterized in that, The tensioning device (5) includes a first fixing member (51) fixed on the first grass collection channel (2), a second fixing member (52) fixed on the second grass collection channel (3), and a tensioning rubber strip (53) connecting the first fixing member (51) and the second fixing member (52). Limiting holes (54) sleeved on the outer circumferences of the first fixing member (51) and the second fixing member (52) are arranged at both ends of the tensioning rubber strip (53), and the tensioning rubber strip (53) has a tensioning force for making the first fixing member (51) and the second fixing member (52) approach each other.

5. The herb arranging mechanism according to claim 1, wherein A rotating member (61) for the movable grass collection cover plate (6) is arranged on the outer wall of the first grass collection channel (2), and the rotating member (61) includes: A fixed bracket (611), fixedly arranged on the first grass collection channel (2), and side brackets (612) protruding towards the same side are arranged at both ends of the fixed bracket (611); A support shaft (613), both ends of which are arranged on the two side brackets (612), and the grass collection cover plate (6) is rotationally connected with the support shaft (613), so that the grass collection cover plate (6) rotates with the axis of the support shaft (613) as the rotation axis; A torsion spring (614), sleeved on the outer circumference of the support shaft (613), one end of the torsion spring (614) is fixedly connected with the fixed bracket (611) or the first grass collection channel (2), and the other end is connected with the grass collection cover plate (6). The torsion spring (614) has an initial torsion force for providing a torsion force for the grass collection cover plate (6) to rotate towards the opening on the side plate (12).

6. The herb arranging mechanism according to claim 1, characterized in that The first end of the first grass collecting channel (2) is provided with an extension end (21) extending towards the cutter head (1). The extension end (21) abuts against the cutter head (1), and a side opening (22) corresponding to the opening on the side plate (12) is formed in the extension end (21). The grass collecting cover plate (6) covers the side opening (22) at the preset position.

7. The herb arranging mechanism according to claim 1, characterized in that, One end of the side guide groove plate (7) and / or the grass crushing cover plate (8) covering the opening on the top plate (11) is provided with a clamping groove (71), and the top plate (11) is provided with an ear (13) that is matched and clamped with the clamping groove (71).

8. The herb arranging mechanism according to claim 5, characterized in that The grass collecting cover plate (6) abuts against the side guide groove plate (7) or the grass crushing cover plate (8). The grass collecting cover plate (6) with torsion is used to provide a pressing force for pressing the side guide groove plate (7) or the grass crushing cover plate (8) on the cutter head (1).

9. The herb arranging mechanism according to claim 6, characterized in that, A lock assembly (62) is provided on the grass collecting cover plate (6). The lock assembly (62) includes a lock tongue (622) and a return spring (624) connected to the lock tongue (622). The other end of the return spring (624) abuts against the grass collecting cover plate (6). The lock tongue (622) includes a hook-shaped portion (623) that extends into the side opening (22) and is clamped with the inner edge of the side opening (22) to limit the grass collecting cover plate (6) from separating from the extension end (21), and there is a position where the movable lock tongue (622) makes the hook-shaped portion (623) disengage from the inner edge of the side opening (22).

10. A lawn mower, characterized in that, Including the grass discharging mechanism according to any one of claims 1-9.

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