Lawn mower with grass discharging structure

Abstract

The utility model discloses a hay mower with a grass discharging structure, which comprises a hay mower main body and a cover plate, a grass outlet is arranged at the rear part of the hay mower main body, the cover plate is hinged at the rear part of the hay mower main body and can open or close the grass outlet by turning over relative to the hay mower main body, and a supporting mechanism is arranged between the cover plate and the hay mower main body. The supporting mechanism comprises a jacking piece and one or more inserting parts arranged on the rear portion of the mower body, the jacking piece is inserted into the inserting parts in a pluggable mode, the cover plate is supported or covers the grass outlet, and a grass outlet gap communicated with the grass outlet is formed between the cover plate and the mower body when the cover plate is supported. After grass clippings cut by the mower main body are discharged from the grass outlet, the grass clippings are blocked by the cover plate to be discharged to the ground through the grass outlet gap, and use in a mode without a grass collecting box is achieved.

Description

Technical Field

[0001] The utility model relates to the field of lawn mowers, in particular to a lawn mower with a grass discharge structure. Background Art

[0002] A lawn mower is a commonly used garden power tool, generally used to trim lawns, vegetation, etc. It consists of a cutter disc, an engine, a traveling mechanism, a blade, a handrail, and a control part. The cutter disc is mounted on the traveling wheel, the engine is mounted on the cutter disc, and the blade is mounted on the output shaft of the engine. The blade uses the high-speed rotation of the engine to achieve the mowing function. An existing lawn mower is provided with an air duct, and a grass clipping discharge outlet connected to the air duct is provided at the rear. Grass clippings cut by the blade are discharged from the grass clipping discharge outlet at the tail. A grass collecting box opposite to the grass clipping discharge outlet is installed at the rear of the lawn mower. The cut grass is discharged through the air duct and collected by the grass collecting box and then dumped; when there is no grass collecting box, the cut grass is directly scattered on the lawn.

[0003] For example, the lawn mower disclosed in Chinese invention patent CN1689390A includes a power source, a shell and a cutting blade. The shell has an internal space. The power source is arranged on the shell for rotating and driving the output shaft. The cutting blade is arranged in the internal space of the shell and connected to the output shaft for facilitating its rotation. A grass clippings exhaust channel is provided in the shell and is connected to the internal space of the shell so that grass cut by the cutting blade and swirling in the internal space of the shell can be discharged through the grass clippings exhaust channel. The container cover is connected to the upper rear part of the shell in a swingable manner to open and close the grass clippings exhaust channel.

[0004] When the existing lawn mower is not equipped with a grass collecting box, the cover plate will cover the grass outlet, and the cut grass will be blocked by the cover plate, thereby blocking the grass outlet, so that the lawn mower body can only be used when the grass collecting box is installed. Utility Model Content

[0005] Based on the problem that when the above-mentioned lawn mower is in a state without a grass collecting box, the cover plate will cover the grass outlet, and the cut grass will be blocked by the cover plate, thereby blocking the grass outlet, making the existing lawn mower only able to be used with a grass collecting box installed, the utility model provides a lawn mower with a grass discharge structure.

[0006] The technical solution adopted by the utility model to solve the above technical problems is: a lawn mower with a grass discharge structure includes a lawn mower body and a cover plate, a grass outlet is opened at the rear of the lawn mower body, the cover plate is hinged at the rear of the lawn mower body, and can be opened or closed by flipping relative to the lawn mower body, a support mechanism is provided between the cover plate and the lawn mower body, the support mechanism includes a top support member, and a first plug-in portion and a second plug-in portion arranged at the rear of the lawn mower body, the top support member is pluggable and plugged into the first plug-in portion or the second plug-in portion, and when the top support member is plugged into the first plug-in portion, the height of the top of the top support member is higher than the height of the top of the top support member when the top support member is plugged into the second plug-in portion.

[0007] In state 1, the top support member is plugged into the first plug-in portion, and the top support member props up the cover plate, so that a grass outlet gap connected to the grass outlet is formed between the cover plate and the main body of the lawn mower for discharging grass;

[0008] In state two, the top support member is plugged into the second plug-in portion, and the cover plate covers the grass outlet.

[0009] A further preferred technical solution of the utility model is: the first plug-in part and the second plug-in part are a first plug-in slot and a second plug-in slot arranged on the rear part of the lawn mower body, the top support member includes a support body, and a first plug-in block fixed on the support body, the first plug-in block can be plugged in and out of the first plug-in slot or the second plug-in slot, a step is provided between the first plug-in block and the support body, when the first plug-in block is inserted into the first plug-in slot or the second plug-in slot, the step abuts against the edge of the slot, and the height of the slot of the first plug-in slot is higher than the height of the slot of the second plug-in slot.

[0010] A further preferred technical solution of the utility model is: the first plug-in portion and the second plug-in portion are a first plug-in slot and a second plug-in slot arranged on the rear part of the lawn mower body, the top support member includes a support body, and a first plug-in block fixed on the support body, the first plug-in block can be plugged in and out of the first plug-in slot or the second plug-in slot, the height of the first plug-in slot is equal to the height of the second plug-in slot, the depth of the first plug-in slot is less than the depth of the second plug-in slot, and the depth of the first plug-in slot is less than the length of the first plug-in block.

[0011] A further preferred technical solution of the utility model is: two bosses extending upward are provided at the rear of the lawn mower body, and the first plug-in slot and the second plug-in slot are respectively provided on the two bosses.

[0012] A further preferred technical solution of the utility model is: when the top support member is inserted into the first plug-in portion and props up the cover plate, the propped-up cover plate is arranged obliquely downward, and a grass outlet gap obliquely facing downward is formed between the cover plate and the lawn mower body.

[0013] Another subject: A lawn mower with a grass discharge structure, comprising a lawn mower body and a cover plate, a grass outlet is provided at the rear of the lawn mower body, the cover plate is hinged at the rear of the lawn mower body, and can be flipped over relative to the lawn mower body to open or close the grass outlet, a support mechanism is provided between the cover plate and the lawn mower body, the support mechanism comprises a top support member and a third plug-in portion provided at the rear of the lawn mower body, the two ends of the top support member respectively have a first matching portion and a second matching portion, the top support member can be plugged into the third plug-in portion through the first matching portion or the second matching portion, and the height of the top of the top support member when the first matching portion is plugged into the third plug-in portion is higher than the height of the top of the top support member when the second matching portion is plugged into the third plug-in portion,

[0014] In state 1, the top support member is plugged into the third plug-in portion through the first matching portion, and the top support member props up the cover plate upward, so that a grass outlet gap connected to the grass outlet is formed between the cover plate and the main body of the lawn mower for discharging grass;

[0015] In state two, the supporting member is plugged into the third plug-in portion through the second matching portion, and the cover plate covers the grass outlet.

[0016] A further preferred technical solution of the utility model is: the third plug-in portion is a third plug-in slot arranged on the rear part of the lawn mower body, the top support member includes a support body, the first matching portion and the second matching portion are a second plug-in block and a third plug-in block respectively fixed at two ends of the support body, the second plug-in block or the third plug-in block is pluggable in the third plug-in slot, and steps are provided between the second plug-in block and the third plug-in block and the support body, when the second plug-in block or the third plug-in block is inserted in the third plug-in slot, the step abuts against the edge of the slot, and the length of the second plug-in block is shorter than the length of the third plug-in block.

[0017] A further preferred technical solution of the utility model is: a boss extending upward is provided at the rear of the lawn mower body, and the third plug-in slot is arranged on the boss.

[0018] A further preferred technical solution of the utility model is: when the top support member is plugged into the third plug-in portion through the first matching portion and props up the cover plate, the propped-up cover plate is arranged obliquely downward, and a grass outlet gap obliquely facing downward is formed between the cover plate and the lawn mower body.

[0019] A further preferred technical solution of the utility model is: the third plug-in portion is arranged below the cover plate and adjacent to the hinge between the cover plate and the lawn mower body.

[0020] Compared with the prior art, the advantage of the present invention is that when a grass collection box is not installed at the rear of the lawn mower body, a top support piece can be inserted at the rear of the lawn mower body so that the top support piece props up the cover plate upwards, thereby forming a grass outlet gap connected to the grass outlet between the cover plate and the lawn mower body, so that grass clippings cut by the lawn mower body are discharged from the grass outlet and then blocked by the cover plate and discharged onto the ground through the grass outlet gap, thereby realizing the use of a grass collection box-free mode. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be described in further detail below in conjunction with the accompanying drawings and preferred embodiments, but those skilled in the art will appreciate that these drawings are drawn only for the purpose of explaining the preferred embodiments and therefore should not be used as a limitation on the scope of the present invention. In addition, unless otherwise specified, the drawings are only schematically representing the composition or structure of the described object and may contain exaggerated displays, and the drawings are not necessarily drawn to scale.

[0022] Figure 1It is a structural schematic diagram of the lawn mower when the cover plate of the first embodiment is opened;

[0023] Figure 2 for Figure 1 A local enlarged view of point A;

[0024] Figure 3 It is a structural schematic diagram of the top support member in the first embodiment;

[0025] Figure 4 It is a structural schematic diagram of the lawn mower when the top support member of the first embodiment is plugged into the second plug-in slot and the cover plate is opened;

[0026] Figure 5 It is a partial cross-sectional schematic diagram of the lawn mower when the top support member of the first embodiment is plugged into the second plug-in slot and the cover plate closes the grass outlet;

[0027] Figure 6 It is a structural schematic diagram of the lawn mower when the top support member of the first embodiment is plugged into the first plug-in slot and the cover plate is opened;

[0028] Figure 7 It is a partial cross-sectional schematic diagram of the lawn mower when the top support member of the first embodiment is inserted into the first insertion groove and a grass outlet gap is formed between the cover plate and the lawn mower body;

[0029] Figure 8 This is a schematic diagram of the structure of the lawn mower when the cover plate is opened in the second embodiment;

[0030] Fig. 9 for Figure 8 A partial enlarged view of point B;

[0031] Fig.10 It is a schematic plan view of the top support member in the second embodiment;

[0032] Fig.11 It is a partial cross-sectional schematic diagram of the lawn mower when the second matching portion of the top support member of the second embodiment is plugged into the third plugging groove and the cover plate closes the grass outlet;

[0033] Fig.12 It is a partial cross-sectional schematic diagram of the lawn mower when the first matching portion of the top support member of the second embodiment is inserted into the third insertion groove and a grass outlet gap is formed between the cover plate and the lawn mower body.

[0034] In the figure: 1. lawn mower body; 2. first plug-in slot; 3. second plug-in slot; 4. supporting body; 5. first plug-in block; 6. step; 7. cover plate; 8. grass outlet; 9. third plug-in slot; 10. second plug-in block; 11. boss; 12. top support; 13. third plug-in block; 14. grass outlet gap. DETAILED DESCRIPTION

[0035] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It will be appreciated by those skilled in the art that these descriptions are merely illustrative and exemplary and should not be construed as limiting the scope of protection of the present invention.

[0036] It should be noted that like reference numerals denote similar items in the following drawings, and thus, once an item is defined in one drawing, it may not be further defined or explained in subsequent drawings.

[0037] Embodiment 1

[0038] like Figure 1-Figure 7 As shown, the lawn mower with a grass discharge structure includes a lawn mower body 1 and a cover plate 7. A grass outlet 8 is provided at the rear of the lawn mower body 1. When the lawn mower is started, grass clippings cut by the lawn mower are discharged from the grass outlet 8 at the rear. The cover plate 7 is hinged at the rear of the lawn mower body 1. The cover plate 7 can be flipped relative to the lawn mower body 1 to open or close the grass outlet 8.

[0039] Figure 2 , Figure 3 As shown, a supporting mechanism is arranged between the cover plate 7 and the lawn mower body 1, and the supporting mechanism includes a top support member 12, and a first plug-in portion and a second plug-in portion arranged at the rear part of the lawn mower body 1, the top support member 12 is pluggable and plugged into the first plug-in portion or the second plug-in portion, and when the top support member 12 is plugged into the first plug-in portion, the height of the top of the top support member 12 is higher than the height of the top of the top support member 12 when the top support member 12 is plugged into the second plug-in portion, so that the lawn mower can present two states. In state one, the top support member 12 is plugged into the first plug-in portion, and the top support member 12 props up the cover plate 7, so that a grass outlet gap 14 connected to the grass outlet 8 is formed between the cover plate 7 and the lawn mower body 1, and the grass outlet gap 14 is used for discharging grass clippings cut by the lawn mower when the lawn mower is started. In state two, the top support member 12 is plugged into the second plug-in portion, and the cover plate 7 covers the grass outlet 8 to close the grass outlet 8.

[0040] When no grass collecting box is installed at the rear of the lawn mower body 1, a top support member 12 can be inserted at the rear of the lawn mower body 1 so that the top support member 12 can prop up the cover plate 7 upwards, and a grass outlet gap 14 connected to the grass outlet 8 is formed between the cover plate 7 and the lawn mower body 1, so that grass clippings cut by the lawn mower body 1 are discharged from the grass outlet 8 and then blocked by the cover plate 7 to be discharged to the ground through the grass outlet gap 14, thereby realizing the use of a grass collecting box-free mode, and the rows of grass clippings discharged to the ground can be conveniently cleaned or left in place as fertilizer.

[0041] In this patent, there are many specific ways to realize that the cover plate 7 supports or closes the grass outlet 8 by plugging the supporting member 12 into the first plug-in portion or the second plug-in portion, for example:

[0042] Figure 2-Figure 7As shown, a scheme is preferably, the first plug-in part and the second plug-in part are the first plug-in slot 2 and the second plug-in slot 3 arranged on the rear part of the lawn mower body 1, the top support member 12 includes a support body 4, and a first plug-in block 5 fixed on the support body 4, the top support member 12 is pluggable in the first plug-in slot 2 or the second plug-in slot 3 through the first plug-in block 5, a step 6 is provided between the first plug-in block 5 and the support body 4, when the first plug-in block 5 is inserted into the first plug-in slot 2 or the second plug-in slot 3, the step 6 abuts against the edge of the slot, the height of the slot of the first plug-in slot 2 is higher than the height of the slot of the second plug-in slot 3, and the above two states are realized by the height difference between the slot of the first plug-in slot 2 and the slot of the second plug-in slot 3. When the top support member 12 is inserted into the first plug-in slot 2 through the first plug-in block 5, the step 6 between the first plug-in block 5 and the support body 4 abuts against the edge of the slot of the first plug-in slot 2. At this time, the top of the support body 4 abuts on the cover plate 7 that is covered downward, propping up the cover plate 7, so that a grass outlet gap 14 for discharging grass is formed between the cover plate 7 and the lawn mower body 1; when the top support member 12 is inserted into the second plug-in slot 3 through the first plug-in block 5, the step 6 between the first plug-in block 5 and the support body 4 abuts against the edge of the slot of the second plug-in slot 3. Since the height of the slot of the second plug-in slot 3 is lower than the height of the slot of the first plug-in slot 2, the top of the support body 4 is not sufficient to support the cover plate 7 that is covered downward, and at this time the cover plate 7 closes the grass outlet 8.

[0043] Another solution, preferably, the first plug-in portion and the second plug-in portion are the first plug-in slot 2 and the second plug-in slot 3 arranged on the rear part of the lawn mower body 1, the top support member 12 includes a support body 4, and a first plug-in block 5 fixed on the support body 4, the top support member 12 is pluggable in the first plug-in slot 2 or the second plug-in slot 3 through the first plug-in block 5, the slot height of the first plug-in slot 2 is equal to the slot height of the second plug-in slot 3, the depth of the first plug-in slot 2 is less than the depth of the second plug-in slot 3, and the depth of the first plug-in slot 2 is less than the length of the first plug-in block 5, and the above two states are achieved by the different depths of the first plug-in slot 2 and the second plug-in slot 3. When the top support member 12 is inserted into the first plug-in slot 2 through the first plug-in block 5, since the length of the first plug-in block 5 is greater than the depth of the first plug-in slot 2, the first plug-in block 5 is at least partially exposed outside the first plug-in slot 2. At this time, the top of the support body 4 is on the cover plate 7 that is covered downward, and the cover plate 7 is propped up, so that a grass outlet gap 14 for discharging grass is formed between the cover plate 7 and the lawn mower body 1; when the top support member 12 is inserted into the second plug-in slot 3 through the first plug-in block 5, since the depth of the second plug-in slot 3 is greater than the depth of the first plug-in slot 2, the exposed portion of the first plug-in block 5 when inserted into the second plug-in slot 3 is smaller than the exposed portion of the first plug-in block 5 when inserted into the first plug-in slot 2, so that the top of the support body 4 is not sufficient to support the cover plate 7 that is covered downward, and at this time the cover plate 7 closes the grass outlet 8.

[0044] Preferably, two bosses 11 extending upward are provided at the rear of the lawn mower body 1 , and the first plugging slot 2 and the second plugging slot 3 are respectively arranged on the two bosses 11 .

[0045] Preferably, when the top support member 12 is plugged into the first plug-in portion and props up the cover plate 7, the propped-up cover plate 7 is arranged obliquely downward, and a grass outlet gap 14 obliquely downward is formed between the cover plate 7 and the lawn mower body 1, so that when the lawn mower is started, the grass discharged from the grass outlet 8 is blocked by the cover plate 7 and then guided obliquely downward to the ground through the grass outlet gap 14, so as to achieve a better grass discharge effect.

[0046] Preferably, the first plug-in portion and the second plug-in portion are disposed below the cover plate 7 and adjacent to the hinged connection between the cover plate 7 and the lawn mower body 1 .

[0047] Embodiment 2

[0048] Figure 8-Figure 12 As shown, the lawn mower with a grass discharge structure includes a lawn mower body 1 and a cover plate 7. A grass outlet 8 is provided at the rear of the lawn mower body 1. When the lawn mower is started, grass clippings cut by the lawn mower are discharged from the grass outlet 8 at the rear. The cover plate 7 is hinged at the rear of the lawn mower body 1. The cover plate 7 can be flipped relative to the lawn mower body 1 to open or close the grass outlet 8.

[0049] Fig. 9 , Fig.10 As shown, a support mechanism is arranged between the cover plate 7 and the lawn mower body 1, and the support mechanism includes a top support member 12 and a third plug-in portion arranged at the rear of the lawn mower body 1, and the two ends of the top support member 12 respectively have a first matching portion and a second matching portion that are plugged and matched with the third plug-in portion, and the top support member 12 can be plugged and unplugged on the third plug-in portion through the first matching portion or the second matching portion, and when the first matching portion is plugged with the third plug-in portion, the height of the top of the top support member 12 is higher than when the second matching portion is plugged with the third plug-in portion. Due to the height of the top of the support member 12, the lawn mower can be in two states. In state one, the top support member 12 is plugged into the third plug-in portion through the first matching portion, and the top support member 12 supports the cover plate 7 upward, so that a grass outlet gap 14 connected to the grass outlet 8 is formed between the cover plate 7 and the lawn mower body 1, and the grass outlet gap 14 is used to discharge grass clippings cut by the lawn mower when the lawn mower is started. In state two, the top support member 12 is plugged into the third plug-in portion through the second matching portion, and the cover plate 7 covers the grass outlet 8 to close the grass outlet 8.

[0050] When no grass collecting box is installed at the rear of the lawn mower body 1, a top support member 12 can be inserted at the rear of the lawn mower body 1 so that the top support member 12 can prop up the cover plate 7 upwards, and a grass outlet gap 14 connected to the grass outlet 8 is formed between the cover plate 7 and the lawn mower body 1, so that grass clippings cut by the lawn mower body 1 are discharged from the grass outlet 8 and then blocked by the cover plate 7 to be discharged to the ground through the grass outlet gap 14, thereby realizing the use of a grass collecting box-free mode, and the rows of grass clippings discharged to the ground can be conveniently cleaned or left in place as fertilizer.

[0051] Fig.10 As shown, preferably, the third plug-in portion is a third plug-in slot 9 arranged on the rear part of the lawn mower body 1, the top support member 12 includes a support body 4, the first matching portion and the second matching portion are a second plug-in block 10 and a third plug-in block 13 respectively fixed at both ends of the support body 4, the second plug-in block 10 or the third plug-in block 13 is pluggable in the third plug-in slot 9, and a step 6 is provided between the second plug-in block 10 and the third plug-in block 13 and the support body 4, when the second plug-in block 10 or the third plug-in block 13 is inserted into the third plug-in slot 9, the step 6 abuts against the edge of the slot, the length of the second plug-in block 10 is shorter than the length of the third plug-in block 13, and the above two states are achieved by having different lengths of the second plug-in block 10 and the third plug-in block 13 plugged into the third plug-in slot 9.

[0052] Fig.11 , Fig.12 As shown, when the top support member 12 is plugged into the third plug-in slot 9 through the second plug-in block 10, the step 6 between the second plug-in block 10 and the support body 4 abuts against the edge of the notch of the third plug-in slot 9. At this time, the third plug-in block 13 is located at the upper end of the support body 4. The top of the third plug-in block 13 serves as the top of the top support member 12 for supporting the cover plate 7. The top of the third plug-in block 13 is pressed against the cover plate 7 that is covered downward, propping up the cover plate 7, so that a grass discharge gap 14 for discharging grass is formed between the cover plate 7 and the lawn mower body 1; when the top support member 12 is plugged into the third plug-in slot through the third plug-in block 13 9, the step 6 between the third plug-in block 13 and the supporting body 4 abuts against the edge of the slot of the third plug-in slot 9. At this time, the second plug-in block 10 is located at the upper end of the supporting body 4, and the top of the second plug-in block 10 serves as the top of the top support member 12 to support the cover plate 7. Since the length of the second plug-in block 10 is shorter than the length of the third plug-in block 13, when the third plug-in block 13 is plugged into the third plug-in slot 9, the length of the top support member 12 exposed outside the third plug-in slot 9 becomes shorter, and the top of the top support member 12 is not enough to support the cover plate 7 that is closed downward. At this time, the cover plate 7 closes the grass outlet 8.

[0053] Preferably, a boss 11 extending upward is provided at the rear of the lawn mower body 1 , and the third plug-in slot 9 is arranged on the boss 11 .

[0054] Preferably, when the top support member 12 is plugged into the third plug-in portion through the first matching portion and props up the cover plate 7, the propped cover plate 7 is arranged obliquely downward, and a grass outlet gap 14 obliquely downward is formed between the cover plate 7 and the lawn mower body 1, so that when the lawn mower is started, the grass discharged from the grass outlet 8 is blocked by the cover plate 7 and then guided through the grass outlet gap 14 to be discharged obliquely downward to the ground, so as to achieve a better grass discharge effect.

[0055] Preferably, the third plug-in portion is located below the cover plate 7 and adjacent to the hinge between the cover plate 7 and the lawn mower body 1 .

[0056] The above is an introduction to the lawn mower with a grass discharge structure provided by the utility model. This article uses specific examples to illustrate the principle and implementation method of the utility model. The description of the above embodiments is only used to help understand the utility model and its core ideas. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified in a number of ways, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. A lawn mower with a grass discharge structure, comprising a lawn mower body and a cover plate, wherein a grass discharge port is provided at the rear of the lawn mower body, the cover plate is hinged to the rear of the lawn mower body, and can be turned over relative to the lawn mower body to open or close the grass discharge port, characterized in that: A support mechanism is provided between the cover plate and the main body of the lawn mower, and the support mechanism includes a top support member, and a first plug-in portion and a second plug-in portion provided at the rear of the main body of the lawn mower. The top support member is pluggable and plugged into the first plug-in portion or the second plug-in portion. When the top support member is plugged into the first plug-in portion, the height of the top of the top support member is higher than the height of the top of the top support member when the top support member is plugged into the second plug-in portion. In state 1, the top support member is plugged into the first plug-in portion, and the top support member props up the cover plate, so that a grass outlet gap connected to the grass outlet is formed between the cover plate and the main body of the lawn mower for discharging grass; In state two, the top support member is plugged into the second plug-in portion, and the cover plate covers the grass outlet.

2. The lawn mower with a grass discharge structure according to claim 1, characterized in that: The first plug-in portion and the second plug-in portion are the first plug-in slot and the second plug-in slot arranged on the rear part of the lawn mower body, the top support member includes a support body and a first plug-in block fixed on the support body, the first plug-in block can be plugged in and out of the first plug-in slot or the second plug-in slot, a step is provided between the first plug-in block and the support body, when the first plug-in block is inserted into the first plug-in slot or the second plug-in slot, the step abuts against the edge of the slot, and the height of the slot of the first plug-in slot is higher than the height of the slot of the second plug-in slot.

3. The lawn mower with a grass discharge structure according to claim 1, characterized in that: The first plug-in portion and the second plug-in portion are the first plug-in slot and the second plug-in slot arranged on the rear part of the lawn mower body, the top support member includes a support body and a first plug-in block fixed on the support body, the first plug-in block can be plugged in and out of the first plug-in slot or the second plug-in slot, the height of the first plug-in slot is equal to the height of the second plug-in slot, the depth of the first plug-in slot is less than the depth of the second plug-in slot, and the depth of the first plug-in slot is less than the length of the first plug-in block.

4. The lawn mower with a grass discharge structure according to claim 2 or 3, characterized in that: The rear part of the lawn mower body is provided with two bosses extending upwards, and the first plugging slot and the second plugging slot are respectively arranged on the two bosses.

5. The lawn mower with a grass discharge structure according to claim 1, characterized in that: When the top support member is plugged into the first plug-in portion and props up the cover plate, the propped-up cover plate is arranged obliquely downward, and a grass outlet gap obliquely facing downward is formed between the cover plate and the main body of the lawn mower.

6. A lawn mower with a grass discharge structure, comprising a lawn mower body and a cover plate, wherein a grass discharge port is provided at the rear of the lawn mower body, the cover plate is hinged to the rear of the lawn mower body and can be turned over relative to the lawn mower body to open or close the grass discharge port, characterized in that: A support mechanism is provided between the cover plate and the main body of the lawn mower, the support mechanism comprising a top support member and a third plug-in portion provided at the rear of the main body of the lawn mower, the two ends of the top support member respectively having a first matching portion and a second matching portion, the top support member can be plugged into the third plug-in portion through the first matching portion or the second matching portion, and the height of the top of the top support member when the first matching portion is plugged into the third plug-in portion is higher than the height of the top of the top support member when the second matching portion is plugged into the third plug-in portion. In state 1, the top support member is plugged into the third plug-in portion through the first matching portion, and the top support member props up the cover plate upward, so that a grass outlet gap connected to the grass outlet is formed between the cover plate and the main body of the lawn mower for discharging grass; In state two, the supporting member is plugged into the third plug-in portion through the second matching portion, and the cover plate covers the grass outlet.

7. The lawn mower with a grass discharge structure according to claim 6, characterized in that: The third plug-in portion is a third plug-in slot arranged on the rear part of the lawn mower body, the top support member includes a support body, the first matching portion and the second matching portion are a second plug-in block and a third plug-in block respectively fixed at two ends of the support body, the second plug-in block or the third plug-in block can be plugged in the third plug-in slot, and steps are provided between the second plug-in block and the third plug-in block and the support body, when the second plug-in block or the third plug-in block is inserted in the third plug-in slot, the step abuts against the edge of the slot, and the length of the second plug-in block is shorter than that of the third plug-in block.

8. The lawn mower with a grass discharge structure according to claim 7, characterized in that: A boss extending upward is provided at the rear of the lawn mower body, and the third plug-in slot is arranged on the boss.

9. The lawn mower with a grass discharge structure according to claim 6, characterized in that: When the top support member is plugged into the third plug-in portion through the first matching portion and props up the cover plate, the propped-up cover plate is arranged obliquely downward, and a grass outlet gap obliquely facing downward is formed between the cover plate and the main body of the lawn mower.

10. The lawn mower with a grass discharge structure according to claim 6, characterized in that: The third plug-in portion is disposed below the cover plate and adjacent to a hinged connection between the cover plate and the main body of the lawn mower.

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