Automatic chip collecting device of mower

Abstract

The automatic chip collecting device comprises a machine body, a weeding box and a weeding blade, a discharging port is formed in the side, located on the weeding blade, of the weeding box, a weed breaking blade is rotationally connected in the discharging port, and a partition plate is fixedly connected between the weed breaking blade and the weeding blade in the weeding box. A partition plate is arranged in the weeding box and divides the weeding box into a feeding cavity and a discharging cavity, fans are fixedly connected in the feeding cavity and the discharging cavity, when weeds are removed, the fans rotate to enable the pressure intensity in the feeding cavity to be smaller than the external pressure intensity, and at the moment, the weeds enter the feeding cavity due to the pressure intensity difference and enter the discharging cavity along the feeding cavity; at the moment, the weed breaking blades conduct secondary smashing on the weeds, so that the size of the weeds is reduced, and finally the smashed weeds are evenly laid on the ground along with movement of the mower under the influence of gravity, so that follow-up decay absorption is facilitated.

Description

Technical Field

[0001] The utility model belongs to the field of agricultural tools and relates to a lawn mower, in particular to an automatic chip collecting device of the lawn mower. Background Art

[0002] A lawn mower is also called a weed cutter, lawn mower, lawn trimmer, etc. A lawn mower is a mechanical tool used to mow lawns, vegetation, etc. It is composed of a cutter disc, an engine, running wheels, a traveling mechanism, a blade, an armrest, and a control part. The cutter disc is mounted on the running wheels, the cutter disc is equipped with an engine, and the output shaft of the engine is equipped with a blade. The blade uses the high-speed rotation of the engine to greatly increase the speed.

[0003] For example, a lawn mower with an existing publication number of CN213485741U comprises a lawn mower body and a push rod, wherein the push rod comprises a mounting portion connected to the lawn mower body; a positioning hole is provided on the mounting portion, and the lawn mower further comprises a fixing assembly, wherein the fixing assembly comprises a slot portion for inserting the mounting portion, a positioning convex portion matched with the positioning hole, and an elastic member for controlling the position change of the positioning convex portion, wherein the elastic member has an initial state and a compressed state; when the mounting portion is inserted into the slot portion and the elastic member is in the initial state, at least part of the positioning convex portion protrudes into the positioning hole to realize the assembly between the mounting portion and the slot portion, but the existing lawn mower only removes weeds, and the weeds after removal are only scattered on the ground in a disorderly manner, and the weeds have different volumes due to different degrees of cutting, which will affect the decay and absorption. Utility Model Content

[0004] The utility model provides an automatic cuttings collecting device of a lawn mower which can evenly crush grass cuttings and lay them on the ground.

[0005] The technical solution adopted by the utility model to solve the above-mentioned technical problems is: an automatic chip collection device of a lawn mower, comprising a machine body, a weeding box fixedly connected to the bottom surface of the machine body, and a weeding blade rotatably connected to the weeding box, the weeding box is provided with a discharge port located on one side of the weeding blade, a grass breaking blade is rotatably connected in the discharge port, a partition plate is fixedly connected between the grass breaking blade and the weeding blade in the weeding box, the partition plate divides the weeding box into a feed chamber and a discharge chamber, the discharge port is communicated with the discharge chamber and the grass breaking blade is installed in the discharge chamber, the feed chamber is communicated with the discharge chamber, and fans are fixedly connected in both the feed chamber and the discharge chamber.

[0006] A further preferred technical solution of the utility model is that there is a gap between the top end of the partition plate and the inner top surface of the weeding box.

[0007] A further preferred technical solution of the utility model is: the partition plate is arranged obliquely, and the top end of the partition plate is close to the feed cavity.

[0008] A further preferred technical solution of the utility model is: mounting grooves are provided on the top surface of the feed cavity and the two side walls of the discharge cavity, and the fan is fixedly connected in the mounting grooves.

[0009] A further preferred technical solution of the utility model is: a filter screen is fixedly connected to one side of the installation groove close to the feed cavity and the discharge cavity.

[0010] A further preferred technical solution of the utility model is: two rotating shafts are rotatably connected in the discharge port, and a plurality of the grass breaking blades are fixedly connected to the surface of the rotating shaft.

[0011] A further preferred technical solution of the utility model is that the grass-breaking blades on the two rotating shafts are staggered.

[0012] A further preferred technical solution of the utility model is that the top surface of the partition plate is provided with an arc surface.

[0013] A further preferred technical solution of the utility model is: the discharge cavity is located on one side of the grass breaking blade and is fixedly connected with a guide plate, the guide plate is arranged obliquely and there is a gap between the guide plate and the grass breaking blade.

[0014] Compared with the prior art, the advantage of the utility model is that when the weeds are removed, the fan rotates so that the pressure in the feed chamber is lower than the external pressure. At this time, the weeds enter the feed chamber due to the pressure difference and enter the discharge chamber along the feed chamber. At this time, the weed breaking blades crush the weeds for the second time, thereby reducing the volume of the weeds. Finally, the crushed weeds are evenly laid on the ground under the influence of gravity as the lawn mower moves, thereby facilitating subsequent decay and absorption. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] 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.

[0016] Figure 1 The overall structure of the utility model Figure 1 ;

[0017] Figure 2 The overall structure of the utility model Figure 2 ;

[0018] Figure 3 The utility model is a cross-sectional view Figure 1 ;

[0019] Figure 4The utility model is a cross-sectional view Figure 2 ;

[0020] Figure 5 For this utility model Figure 4 Enlarged view of point A in the middle.

[0021] In the figure: 1. weeding box; 2. fan; 3. engine; 4. motor; 5. weeding blade; 6. rotating shaft; 7. discharge port; 8. weeding blade; 9. discharge cavity; 10. partition plate; 11. filter screen; 12. feed cavity; 13. guide plate; 14. arc surface; 15. gap; 16. installation groove. DETAILED DESCRIPTION

[0022] 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.

[0023] 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.

[0024] Figure 1 and Figure 2 As shown, the automatic chip collection device of the lawn mower includes a body, a weeding box 1 fixedly connected to the bottom surface of the body, and a weeding blade 5 rotatably connected to the weeding box 1. An engine 3 for driving the weeding blade 5 to rotate is fixedly connected to the body. When weeding the lawn, the engine 3 is started, and the engine 3 drives the weeding blade 5 to rotate. During the rotation of the weeding blade 5, the lawn is trimmed, thereby improving the flatness of the lawn surface.

[0025] Figure 3 and Figure 4As shown, the weeding box 1 is provided with a discharge port 7 on one side of the weeding blade 5, and a weed breaking blade 8 is rotatably connected in the discharge port 7. A partition plate 10 is fixedly connected between the weed breaking blade 8 and the weeding blade 5 in the weeding box 1, and the partition plate 10 divides the weeding box 1 into a feed chamber 12 and a discharge chamber 9. The discharge port 7 is communicated with the discharge chamber 9 and the weed breaking blade 8 is installed in the discharge chamber 9. The feed chamber 12 is communicated with the discharge chamber 9, and a fan 2 is fixedly connected in both the feed chamber 12 and the discharge chamber 9. Therefore, after the weeding blade 5 removes excess weeds, the fan 2 is started. At this time, the fan 2 rotates rapidly to reduce the pressure in the feed chamber 12, and a pressure difference is generated inside and outside the weeding box 1. The removed weeds enter the feed chamber due to the pressure difference. The fan 2 in the feed chamber 12 is further closed and the fan 2 in the discharge chamber 9 is opened. At this time, the pressure in the discharge chamber 9 is reduced, and a pressure difference is generated between the feed chamber 12 and the discharge chamber 9. The weeds further enter the discharge chamber 9. Thereafter, the fan 2 in the discharge chamber 9 is closed. Due to gravity, the weeds fall between the grass breaking blades 8. As the grass breaking blades 8 rotate, the weeds are cut into smaller and faster fragments for a second time. Thereafter, the cut weed fragments are spread on the grass as the lawn mower moves, so that the fragments can be better rotted and absorbed. This design not only removes the weeds, but also performs a second treatment on the weeds while removing them, so that the removed weeds become nutrients that are easy to absorb.

[0026] Figure 3-Figure 5 As shown, there is a gap 15 between the top of the partition plate 10 and the top surface of the weeding box 1. Therefore, when the fan 2 in the feed chamber 12 is turned off and the fan 2 in the discharge chamber 9 is turned on, the weeds can enter the discharge chamber 9 from the feed chamber 12 through the gap 15. This design facilitates the weeds to enter the discharge chamber 9.

[0027] Figure 3 and Figure 4 As shown, the partition plate 10 is arranged at an angle, and the top of the partition plate 10 is close to the feed chamber 12. Since the partition plate 10 is arranged at an angle, the weeds slide into the discharge chamber 9 along the inclined surface under the influence of gravity. This design allows the weeds to enter the discharge chamber 9 more easily, and the top surface of the partition plate 10 is provided with an arc surface 14, which further improves the convenience of the weeds entering the discharge chamber 9, allowing the weeds to enter the discharge chamber 9 more easily.

[0028] Figure 3 and Figure 4 As shown, mounting grooves 16 are provided on the top surface of the feed chamber 12 and the two side walls of the discharge chamber 9, and the fan 2 is fixedly connected in the mounting groove 16. A filter screen 11 is fixedly connected to the mounting groove 16 near the feed chamber 12 and one side of the discharge chamber 9. This design can better install the fan 2, and by setting the filter screen 11, it can prevent weeds from being drawn into the fan 2 under the action of the fan 2 and affecting the normal operation of the fan 2. The filter screen 11 plays a role in protecting the fan 2.

[0029] Figure 3 and Figure 4 As shown, two rotating shafts 6 are rotatably connected in the discharge port 7, and a plurality of grass breaking blades 8 are fixedly connected to the surface of the rotating shaft 6. The grass breaking blades 8 on the two rotating shafts 6 are staggered. A motor 4 for driving the rotating shaft 6 is fixedly connected to the machine body. Therefore, when the weeds are crushed for the second time, the motor 4 is started. At this time, the motor 4 drives the rotating shaft 6 and the grass breaking blades 8 on the rotating shaft 6 to rotate, thereby chopping the weeds.

[0030] Figure 3 and Figure 4 As shown, the discharge chamber 9 is located on one side of the grass breaking blade 8 and is fixedly connected to a guide plate 13. The guide plate 13 is arranged obliquely and there is a gap between the guide plate 13 and the grass breaking blade 8. By setting the guide plate 13, the weeds can be accurately guided into the space between the two grass breaking blades 8 for crushing, thereby preventing the weeds from falling on both sides of the grass breaking blades 8. This design improves the accuracy of weed crushing.

[0031] The above is an introduction to the automatic debris collection device of the lawn mower 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, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. An automatic debris collection device for a lawn mower, comprising a machine body, a weeding box fixedly connected to the bottom surface of the machine body, and a weeding blade rotatably connected to the weeding box, characterized in that: The weeding box is provided with a discharge port on one side of the weeding blade, a grass breaking blade is rotatably connected in the discharge port, a partition plate is fixedly connected between the grass breaking blade and the weeding blade in the weeding box, the partition plate divides the weeding box into a feed chamber and a discharge chamber, the discharge port is communicated with the discharge chamber and the grass breaking blade is installed in the discharge chamber, the feed chamber is communicated with the discharge chamber, and fans are fixedly connected in both the feed chamber and the discharge chamber.

2. The automatic debris collection device for a lawn mower according to claim 1, characterized in that: There is a gap between the top of the partition plate and the inner top surface of the weeding box.

3. The automatic debris collection device for a lawn mower according to claim 1, characterized in that: The partition plate is arranged obliquely, and the top end of the partition plate is close to the feed cavity.

4. The automatic debris collection device for a lawn mower according to claim 1, characterized in that: The top surface of the feed cavity and the two side walls of the discharge cavity are both provided with mounting grooves, and the fan is fixedly connected in the mounting grooves.

5. The automatic debris collection device for a lawn mower according to claim 4, characterized in that: The installation groove is fixedly connected with a filter screen on one side close to the feed cavity and the discharge cavity.

6. The automatic debris collection device for a lawn mower according to claim 1, characterized in that: Two rotating shafts are rotatably connected in the discharge port, and a plurality of grass-breaking blades are fixedly connected to the surface of the rotating shafts.

7. The automatic debris collection device for a lawn mower according to claim 6, characterized in that: The grass-breaking blades on the two rotating shafts are arranged in a staggered manner.

8. The automatic debris collection device for a lawn mower according to claim 1, characterized in that: The top surface of the partition plate is provided with an arc surface.

9. The automatic debris collection device for a lawn mower according to claim 1, characterized in that: The discharge cavity is located at one side of the grass breaking blade and is fixedly connected with a guide plate, the guide plate is arranged obliquely and there is a gap between the guide plate and the grass breaking blade.

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