Adjustable mower

Abstract

The utility model discloses an adjustable mowing machine, including handle portion, cutting portion, driving device and connecting portion, the handle portion is provided with one end connected with the output end of driving device and the other end connected with the connecting portion, the cutting portion includes mounting seat and mounting cylinder, the bottom of mounting cylinder is connected with the mounting seat, and the mounting cylinder is connected with the mounting seat. The top of the mounting cylinder is detachably connected with the connecting part, a moving groove is formed in the side wall of the mounting cylinder, the cutter head sleeves the mounting cylinder through the mounting hole, the first screw rod is rotationally mounted in the mounting cylinder, an adjusting block rotationally connected with the mounting cylinder is arranged at the top of the first screw rod, and an adjusting hole is formed in the top of the adjusting block; the adjustable cutter head has the advantages that the position height of the cutter head can be adjusted, and therefore the height of the cutter head can be adjusted according to the actual situation of a lawn when the lawn mower works.

Description

Technical Field

[0001] The utility model relates to a lawn mower, in particular to an adjustable lawn mower. Background Art

[0002] A lawn mower is a gardening tool used to trim the lawn. It uses a rotating blade to cut the grass short, keeping it neat and flat. It is suitable for use in homes, gardens, sports fields, and other places. The working principle of a lawn mower usually relies on a rotating blade that can quickly cut the grass from the ground.

[0003] In the existing technology, for example, there is a plant mower with an edge-cutting function and a protective function, as disclosed in publication number CN218302281U. In this plant mower with an edge-cutting function, the position of the secondary cutting blade is adjusted by a rotating cutter disc, so that the adjusted secondary cutting blade can not only avoid contact with obstacles but also utilize the rotating airflow, so that the airflow drives the fan blade to rotate, so that the dust on the top of the cutter disc is sucked into the bottom, thereby preventing people from absorbing too much dust.

[0004] However, the height of the cutter disc cannot be adjusted when the lawn mower is working. In this case, the height of the cutter disc cannot be adjusted according to the actual situation of the lawn when the lawn mower is working, which limits the scope of use of the lawn mower. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide an adjustable lawn mower capable of adjusting the height of a cutter disc.

[0006] The technical solution adopted by the utility model to solve the above technical problems is as follows: an adjustable lawn mower comprises a handle portion and a cutting portion, one end of the handle portion is provided with a driving device, the other end of the handle portion is provided with a connecting portion rotatably connected to the cutting portion, a flexible shaft is provided in the handle portion, one end of the flexible shaft is connected to the output end of the driving device, and the other end of the flexible shaft is connected to the connecting portion, the cutting portion comprises a mounting seat, a mounting cylinder is provided on the mounting seat, a side wall of the mounting cylinder is provided with a movable groove communicating with the interior of the mounting cylinder, and the top of the mounting cylinder is detachably connected to the connecting portion; a blade disc is provided with a mounting hole, and the blade disc is sleeved on the mounting cylinder through the mounting hole; a first screw, the first screw is rotatably installed in the mounting cylinder, the top of the first screw is provided with an adjusting block rotatably connected to the mounting cylinder, and the top of the adjusting block is provided with an adjusting hole; a screw sleeve, the screw sleeve is screwed on the first screw, and a connecting block is provided on the outer wall of the screw sleeve, and the connecting block passes through the movable groove at one end away from the screw sleeve and is connected to the hole wall of the mounting hole.

[0007] A further preferred solution of the present invention is: a plurality of mounting grooves are provided on the cutter disc around the mounting hole, a cutting knife assembly is provided in each of the mounting grooves, and each of the cutting knife assemblies includes a telescopic device, which is installed in the mounting groove; a mounting plate, which is slidably installed in the mounting groove, and the mounting plate is connected to the telescopic end of the telescopic device; a blade, which is installed on the side wall of the mounting plate, and the blade is located in the mounting groove, and a through groove for the blade to extend out of the cutter disc is provided on the groove wall of the mounting groove close to the outer side of the cutter disc, and the through groove is in contact with the outer wall of the blade.

[0008] A further preferred solution of the present invention is that: four movable grooves are provided, and four connecting blocks are also provided.

[0009] A further preferred solution of the present invention is that a moving block is provided at the bottom of the mounting seat, and the bottom of the moving block is arranged in an arc shape.

[0010] A further preferred solution of the present utility model is: the connecting part includes a second screw, the second screws are provided with multiple pieces, and the second screws are circumferentially installed on the top of the mounting tube; a first connecting seat, the first connecting seat is provided with through holes with the same number as the second screws, the first connecting seat passes through the through holes and is installed on the top of the mounting tube, and a nut is threaded on the second screw; a connecting rod, the connecting rod is installed at the center of the top of the first connecting seat; a second connecting seat, the second connecting seat is sleeved on the connecting rod, the second connecting seat is rotatably connected to the connecting rod, the side wall of the second connecting seat is connected to the handle part, and the soft shaft in the handle part penetrates into the second connecting seat and is connected to the connecting rod.

[0011] A further preferred solution of the present invention is that a cleaning block is provided on a side of the through slot close to the blade edge, and a cleaning groove matching the blade edge is formed on the side of the cleaning block close to the blade edge.

[0012] A further preferred solution of the present invention is that a cover plate is provided on the top of each mounting groove, and each cover plate is connected to the cutter disc by bolts.

[0013] A further preferred solution of the present invention is that a sliding groove is provided on the side wall of the installation groove, and a sliding block slidably connected to the sliding groove is provided on the side wall of the installation plate.

[0014] A further preferred solution of the present invention is that a bearing is provided between the second connecting seat and the connecting rod.

[0015] Compared with the prior art, the advantage of the present invention is that when the position height of the cutter disc needs to be adjusted, the user uses an Allen wrench to insert it into the hexagonal adjustment hole, and then rotates the Allen wrench forward or reverse to rotate the adjustment block. As the adjustment block rotates, the first screw connected to the adjustment block also starts to rotate. When the first screw rotates, the screw sleeve threaded with the first screw can move up or down on the first screw. At the same time, the connecting block can also move up or down in the moving groove as the screw sleeve moves. Because the connecting block is connected to the mounting hole on the cutter disc, the movement of the screw sleeve can drive the mounting disc to move, thereby realizing the adjustment of the position height of the cutter disc. In this way, when the lawn mower is working, the height of the cutter disc can be adjusted according to the actual situation of the lawn, thereby improving the range of use of the lawn mower. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be described in further detail below with reference to the accompanying drawings and preferred embodiments. However, those skilled in the art will appreciate that these drawings are drawn only for the purpose of explaining the preferred embodiments and should not be construed as limiting the scope of the present invention. Furthermore, unless otherwise specified, the drawings are merely schematic representations of the composition or structure of the depicted objects and may contain exaggerated representations. Furthermore, the drawings are not necessarily drawn to scale.

[0017] Figure 1 It is a front view of the utility model;

[0018] Figure 2 It is a three-dimensional structural schematic diagram of the utility model;

[0019] Figure 3 This is a schematic diagram of the three-dimensional structure of the cutting part of the utility model;

[0020] Figure 4 This is a schematic diagram of the connection between the connecting portion and the mounting tube in the present invention;

[0021] Figure 5 This is a three-dimensional structural diagram of the cutter disc and cutter assembly in the utility model;

[0022] Figure 6 It is a cross-sectional view of the installation cylinder in the present utility model;

[0023] Figure 7 It is a schematic diagram of the three-dimensional structure of the cutter head in this utility model.

[0024] In the figure: 1. handle portion; 2. cutting portion; 21. mounting cylinder; 22. movable groove; 23. adjusting block; 231. adjusting hole; 24. connecting block; 25. cutter head; 251. blade; 252. through groove; 253. cleaning block; 254. mounting hole; 255. mounting groove; 2551. slide groove; 256. telescopic device; 257. mounting plate; 2571. slider; 26. first screw; 27. screw sleeve; 28. mounting seat; 3. driving device; 4. connecting portion; 41. first connecting seat; 411. through hole; 42. connecting rod; 43. second connecting seat; 44. bearing; 5. second screw; 51. nut; 6. cover plate; 7. flexible shaft; 8. movable block. DETAILED DESCRIPTION

[0025] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Those skilled in the art will appreciate that these descriptions are merely illustrative and exemplary and should not be construed as limiting the scope of protection of the present invention.

[0026] It should be noted that like reference numerals denote like 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.

[0027] This embodiment mainly describes the structure of an adjustable lawn mower, as follows:

[0028] like Figure 1-Figure 7As shown, an adjustable lawn mower includes a handle portion 1 and a cutting portion 2, and a driving device 3 is provided at one end of the handle portion 1, and a connecting portion 4 rotatably connected to the cutting portion 2 is provided at the other end. At the same time, a flexible shaft 7 is provided in the handle portion 1 with one end connected to the output end of the driving device 3 and the other end connected to the connecting portion 4. In this way, when the driving device 3 is started, the flexible shaft 7 connected to the output end of the driving device 3 can drive the cutting portion 2 to rotate through the connecting portion 4, thereby achieving the effect of mowing, wherein the cutting portion 2 includes a mounting seat 28 and a mounting cylinder 21 mounted on the mounting seat 28 and a blade disc 25 sleeved on the mounting cylinder 21. In order to sleeve the blade disc 25 on the mounting cylinder 21, a blade disc 25 is provided at the center thereof with a The mounting tube 21 passes through the mounting hole 254, and the top of the mounting tube 21 is detachably connected to the connecting portion 4, wherein at least four movable grooves 22 communicating with the interior of the mounting tube 21 are provided on the side wall of the mounting tube 21, and a first screw rod 26 is rotatably provided in the mounting tube 21, and an adjusting block 23 rotatably connected to the mounting tube 21 is provided on the top of the first screw rod 26, and a hexagonal adjusting hole 231 is provided on the top of the adjusting block 23, and then a screw sleeve 27 is screwed on the first screw rod 26, and at least four connecting blocks 24 are provided on the outer wall of the screw sleeve 27, and the connecting blocks 24 pass through the mounting tube 21 through the movable groove 22 and are connected to the hole wall of the mounting hole 254 on the cutter head 25;

[0029] In this way, when the height of the cutter head 25 needs to be adjusted, the user inserts an Allen wrench into the hexagonal adjustment hole 231, and then rotates the Allen wrench forward or reverse to rotate the adjustment block 23. As the adjustment block 23 rotates, the first screw 26 connected to the adjustment block 23 also starts to rotate. Because the screw sleeve 27 screwed to the first screw 26 has the connecting block 24 on its outer wall located in the movable groove 22, when the first screw 26 rotates, the screw sleeve 27 screwed to the first screw 26 can move upward or downward on the first screw 26. The connecting block 24 can also move upward or downward in the movable groove 22 as the screw sleeve 27 moves. Because the connecting block 24 is connected to the mounting hole 254 on the cutter disc 25, the mounting disc can be driven to move as the screw sleeve 27 moves, thereby realizing the adjustment of the position height of the cutter disc 25. In this way, when the lawn mower is working, the height of the cutter disc 25 can be adjusted according to the actual situation of the lawn, thereby improving the use range of the lawn mower. Providing four movable grooves 22 and connecting blocks 24 can improve the stability of the cutter disc 25 when moving.

[0030] Furthermore, in order to facilitate the movement of the lawn mower during use, a moving block 8 in contact with the ground is provided at the bottom of the mounting seat 28, and the bottom of the moving block 8 is arranged in an arc shape.

[0031] A plurality of mounting slots 255 are provided circumferentially around the mounting hole 254 on the cutter disc 25, and a cutter assembly is provided in each of the mounting slots 255. The cutter assembly includes a telescopic device 256 installed in the mounting slot 255, and a mounting plate 257 slidably connected to the mounting slot 255 is provided at the telescopic end of the telescopic device 256. A blade 251 for mowing grass is provided on a side wall of the mounting plate 257 near the outer side of the cutter disc 25. A through slot 252 is provided on the slot wall of the mounting slot 255 near the outer side of the cutter disc 25 for the blade 251 to extend out of the cutter disc 25, and the inner wall of the through slot 252 can fit the outer wall of the blade 251.

[0032] In this way, when the cutter assembly needs to work, the telescopic device 256 is started to extend the telescopic device 256, which can push the mounting plate 257 to move in the mounting groove 255 until the blade 251 extends out of the cutter disc 25 through the through groove 252. In this way, as the cutter disc 25 rotates, the blade 251 can cut the grass. When the cutter assembly does not need to work, the telescopic device 256 is started again to shorten the telescopic end of the telescopic device 256, which can retract the blade 251 from the through groove 252 into the mounting groove 255. Because the inner wall of the through groove 252 fits the outer wall of the blade 251, the grass leaves and other debris attached to the surface of the blade 251 can be scraped off by the groove wall of the through groove 252 as the blade 251 retracts from the through groove 252 into the mounting groove 255, which ensures The cleanliness of the blade 251 of the cutting knife assembly after work is improved, thereby reducing the problem of rust on the blade 251 and prolonging the service life of the blade 251. In order to clean the cutting edge of the blade 251, a cleaning block 253 is provided on the side of the through groove 252 close to the cutting edge of the blade 251, and a cleaning groove matching the cutting edge is provided on the side of the cleaning block 253 close to the cutting edge. In this way, the cutting edge can be cleaned as the blade 251 moves, thereby ensuring the cleaning effect of the blade 251. In order to improve the stability of the mounting plate 257 in the mounting groove 255, a sliding groove 2551 is provided on the side wall of the mounting groove 255, and a slider 2571 slidably connected to the sliding groove 2551 is provided on the side wall of the mounting plate 257.

[0033] Furthermore, in order to prevent debris from entering the installation slot 255 when the cutter disc 25 is working, a cover plate 6 is provided on the top of the installation slot 255, and in order to facilitate maintenance of the cutter assembly, the cover plate 6 is connected to the cutter disc 25 by bolts.

[0034] The connecting portion 4 includes a plurality of second screw rods 5 installed on the top of the mounting cylinder 21, and a first connecting seat 41 installed on the top of the mounting cylinder 21. At the same time, a through hole 411 with the same number as the second screw rod 5 is opened on the first connecting seat 41, and the first connecting seat 41 is installed on the top of the mounting cylinder 21 through the second screw rod 5 through the through hole 411, and then a nut 51 for fixing the first connecting seat 41 is screwed on the second screw rod 5, which facilitates the disassembly of the connecting portion 4 and the cutting portion 2. At the same time, a connecting rod 42 is provided at the center of the top of the first connecting seat 41, and a nut 51 for fixing the first connecting seat 41 is screwed on the second screw rod 5. A second connecting seat 43 is sleeved on 42, and the second connecting seat 43 is rotatably connected to the connecting rod 42, wherein the side wall of the second connecting seat 43 is connected to the handle part 1, and the soft shaft 7 in the handle part 1 is inserted into the second connecting seat 43 and connected to the connecting rod 42, so that when the driving device 3 is started, the soft shaft 7 can drive the connecting rod 42 to rotate, so that the first connecting seat 41 can drive the mounting cylinder 21 and the knife disc 25 to rotate, wherein, in order to improve the smoothness of the rotation of the second connecting seat 43 and the connecting rod 42, a bearing 44 is provided between the second connecting seat 43 and the connecting rod 42.

[0035] When the lawn mower is in use, the height of the cutter disc 25 is first adjusted according to the actual situation of the lawn to be processed. After adjustment, the second screw rod 5 installed on the top of the mounting cylinder 21 is inserted into the through hole 411 of the first connecting seat 41, and the nut 51 is screwed into the second screw rod 5 to fix the first connecting seat 41 on the mounting cylinder 21. Then, the driving device 3 is started to make the flexible shaft 7 drive the connecting rod 42 to drive the first connecting seat 41 to make the mounting cylinder 21 and the cutter disc 25 start to rotate, and at the same time, the telescopic device 256 is started to extend the telescopic end of the telescopic device 256, so that the blade 251 will extend, so that when the cutter disc 25 rotates, the blade 251 can cut the grass on the lawn.

[0036] The above describes in detail the adjustable lawn mower provided by the present invention. Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The above examples are intended only to facilitate understanding of the present invention and its core concepts. It should be noted that those skilled in the art may, without departing from the principles of the present invention, make various improvements and modifications to the present invention, and such improvements and modifications fall within the scope of protection of the claims of the present invention.

Claims

1. An adjustable lawn mower comprising a handle and a cutting unit, wherein one end of the handle is provided with a drive device, and the other end of the handle is provided with a connecting portion rotatably connected to the cutting unit, and a flexible shaft is provided in the handle, one end of the flexible shaft is connected to the output end of the drive device, and the other end of the flexible shaft is connected to the connecting portion, characterized in that: The cutting portion includes A mounting seat, wherein a mounting tube is provided on the mounting seat, a movable groove communicating with the interior of the mounting tube is provided on the side wall of the mounting tube, and the top of the mounting tube is detachably connected to the connecting portion; A cutter disc, wherein a mounting hole is formed on the cutter disc, and the cutter disc is sleeved on the mounting cylinder through the mounting hole; A first screw rod is rotatably mounted in the mounting barrel, an adjusting block rotatably connected to the mounting barrel is provided on the top of the first screw rod, and an adjusting hole is formed on the top of the adjusting block; The screw sleeve is screwed onto the first screw rod. A connecting block is provided on the outer wall of the screw sleeve. The connecting block passes through a movable groove at one end away from the screw sleeve and is connected to the hole wall of the mounting hole.

2. The adjustable lawn mower according to claim 1, characterized in that: The cutter disc is provided with a plurality of mounting grooves around the mounting hole, each of which is provided with a cutting knife assembly, each of which includes a telescopic device, and the telescopic device is installed in the mounting groove; A mounting plate, the mounting plate being slidably mounted in the mounting slot, the mounting plate being connected to the telescopic end of the telescopic device; The blade is mounted on the side wall of the mounting plate and is located in the mounting groove. A through groove for the blade to extend out of the cutter disc is provided on the groove wall of the mounting groove close to the outer side of the cutter disc, and the through groove is in contact with the outer wall of the blade.

3. The adjustable lawn mower according to claim 1, characterized in that: There are four movable slots and four connecting blocks.

4. The adjustable lawn mower according to claim 1, characterized in that: A moving block is provided at the bottom of the mounting seat, and the bottom of the moving block is arranged in an arc shape.

5. The adjustable lawn mower according to claim 1, characterized in that: The connecting portion includes A second screw, wherein a plurality of the second screws are provided and the second screws are circumferentially mounted on the top of the mounting cylinder; a first connecting seat, the first connecting seat being provided with through holes having the same number as the second screw rods, the first connecting seat being passed through the through holes and mounted on the top of the mounting cylinder by the second screw rods, the second screw rods being screwed with nuts; A connecting rod, the connecting rod being mounted at the center of the top of the first connecting seat; The second connecting seat is sleeved on the connecting rod, the second connecting seat is rotatably connected to the connecting rod, the side wall of the second connecting seat is connected to the handle part, and the soft shaft in the handle part penetrates into the second connecting seat and is connected to the connecting rod.

6. The adjustable lawn mower according to claim 2, characterized in that: A cleaning block is provided on a side of the through slot close to the blade edge, and a cleaning groove matching the blade edge is opened on the side of the cleaning block close to the blade edge.

7. The adjustable lawn mower according to claim 2, characterized in that: A cover plate is provided on the top of each mounting groove, and each cover plate is connected to the cutter disc via bolts.

8. The adjustable lawn mower according to claim 2, characterized in that: A sliding groove is provided on the side wall of the installation groove, and a sliding block slidably connected to the sliding groove is provided on the side wall of the installation plate.

9. The adjustable lawn mower according to claim 5, characterized in that: A bearing is provided between the second connecting seat and the connecting rod.

Images