Vertical output mower with cutter head convenient to replace

Abstract

The utility model relates to the technical field of mowing machines, and discloses a vertical output mowing machine convenient to replace a cutter head, which comprises a mounting seat and a cutting blade, universal wheels are arranged at the front and rear ends of the left and right sides of the bottom of the mounting seat, and a U-shaped frame is arranged at the top of the mounting seat. According to the vertical output mower convenient for replacing the cutter head, two positioning blocks are driven to move back to back by screwing two hand wheels, so that the two positioning blocks are respectively moved out from the interiors of two positioning grooves, the position limitation on a connecting block is relieved, at the moment, the connecting block can be pulled out from the interior of a connecting groove, so that a cutting blade is detached, and the cutter head can be conveniently replaced. The mowing machine has the advantages that the mowing machine is provided with the cutter head, the cutter head can be conveniently detached, the cutter head can be conveniently replaced, the cutting blade can be driven to move downwards by starting the double-shaft servo motor, accordingly, the height of the cutting blade can be adjusted according to actual use conditions, and the practicability of the mowing machine is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lawn mowers, in particular to a vertical output lawn mower which is convenient for replacing a cutter head. Background Art

[0002] A lawn mower, also known as a weed cutter, a lawn mower, and a lawn trimmer, is a mechanical tool used to trim lawns, vegetation, and the like. A vertical output lawn mower is a very common machine in life and is very convenient to use. However, during use, the existing vertical output lawn mowers have a cutter head that is mostly fixed by screws and nuts, which makes it inconvenient to disassemble the cutter head and, in turn, to replace the cutter head. Secondly, the installation position of the cutter head on the existing vertical output lawn mowers is mostly fixed, which makes it impossible to adjust the height of the cutter head according to actual usage. Therefore, a vertical output lawn mower that is easy to replace the cutter head is proposed. Utility Model Content

[0003] 1. Technical issues to be resolved

[0004] In view of the deficiencies in the prior art, the utility model provides a vertical output lawn mower with easy replacement of the cutter head, which has the advantages of easy disassembly of the cutter head and adjustable cutter head height, etc., and solves the problem that during use of the existing vertical output lawn mower, the cutter head of the lawn mower is mostly fixed by screws and nuts, which makes it inconvenient to disassemble the cutter head and thus inconvenient to replace the cutter head. Secondly, the installation position of the cutter head on the existing vertical output lawn mower is mostly fixed, which makes it impossible to adjust the height of the cutter head according to actual usage.

[0005] (II) Technical solution

[0006] In order to achieve the above-mentioned purpose of facilitating the disassembly of the cutter head and adjusting the height of the cutter head, the utility model provides the following technical solutions: a vertical output lawn mower which is easy to replace the cutter head, comprising a mounting seat and a cutting blade, wherein universal wheels are arranged at the front and rear ends on the left and right sides of the bottom of the mounting seat, a U-shaped frame is arranged on the top of the mounting seat, and first threaded rods with one end movably connected to the top of the mounting seat are arranged on the left and right sides of the inner top wall of the U-shaped frame, and sliding grooves are arranged on the left and right sides of the inner wall of the U-shaped frame, and a moving block threadedly connected to the outer sides of the two first threaded rods is arranged between the two sliding grooves, and a first driving assembly is arranged on the inner top wall of the U-shaped frame, and the left and right ends of the first driving assembly are respectively fixedly connected to the outer sides of the two first threaded rods, a U-shaped block located between the two first threaded rods is arranged at the bottom of the moving block, a mounting groove located between the universal wheels on the left and right sides is arranged at the bottom of the moving block, and a The cam is an angular channel that is formed on the sidewalls of the two guide rails and has a plurality of camshafts that are connected to the guide rails of the two guide rails. The cam is an angular channel that is formed on the sidewalls of the two guide rails and has a plurality of camshafts that are connected to the guide rails of the two guide rails. The cam is an angular channel that is formed on the sidewalls of the two guide rails and has a plurality of camshafts that are connected to the guide rails of the two guide rails.

[0007] Preferably, the first driving assembly includes a dual-axis servo motor, the inner top wall of the U-shaped frame is fixedly mounted with the dual-axis servo motor located between the two first threaded rods, the inner top wall of the U-shaped frame is fixedly mounted with two limit blocks located on the left and right sides of the dual-axis servo motor respectively, the left and right output shafts of the dual-axis servo motor are fixedly mounted with a rotating shaft having one end extending to the opposite sides of the two limit blocks respectively, the opposite sides of the two rotating shafts are fixedly mounted with driving bevel gears, and the outer sides of the two first threaded rods are fixedly mounted with driven bevel gears located above the moving block and one end of which is respectively meshed with the two driving bevel gears.

[0008] Preferably, the second drive assembly includes a drive motor, the drive motor is fixedly mounted on the right side of the U-shaped block, a drive gear is fixedly mounted on the output shaft of the drive motor, and a driven gear is fixedly mounted on the outer side of the mounting shaft and is located between the U-shaped block and the mounting seat and one end of which is meshed with the drive gear.

[0009] Preferably, the third drive assembly includes a worm gear, and the outer sides of the two second threaded rods are fixedly mounted with worm gears respectively located on the opposite sides of the two positioning blocks, and the inner top walls of the two rectangular grooves are movably mounted with a worm screw, one end of which is respectively meshed with the two worm gears and the other end extends to the bottom of the mounting block, and a handwheel is fixedly mounted on the bottom of the two worm screws.

[0010] Preferably, first bearings are fixedly mounted on the left and right sides of the inner top wall of the U-shaped frame and the left and right sides of the top of the mounting seat, and the first threaded rod is rotatably connected to the U-shaped frame and the mounting seat respectively through the first bearings.

[0011] Preferably, a second bearing located inside the U-shaped block is fixedly mounted on the bottom of the moving block, and the mounting shaft is rotatably connected to the bottom of the moving block via the second bearing.

[0012] (III) Beneficial effects

[0013] Compared with the prior art, the utility model provides a vertical output lawn mower that is easy to replace the cutter head, and has the following beneficial effects:

[0014] 1. The vertical output lawn mower which is easy to replace the cutter head drives two worms to rotate by turning two hand wheels, and then drives two second threaded rods to rotate by two worm wheels, and the two second threaded rods will drive two positioning blocks to move away from each other during the rotation, so that the two positioning blocks are respectively moved out from the inside of the two positioning grooves, thereby releasing the position restriction of the connecting block. At this time, the connecting block can be pulled out from the inside of the connecting groove to remove the cutting blade, thereby achieving the purpose of facilitating the disassembly of the cutter head and facilitating the replacement of the cutter head.

[0015] 2. The vertical output lawn mower which is easy to replace the cutter head starts the dual-axis servo motor to drive the two rotating shafts and the two driving bevel gears to rotate, and then drives the two first threaded rods to rotate through the two driven bevel gears. During the rotation process, the two first threaded rods drive the moving block, the mounting shaft, the mounting block and the cutting blade to move downward as a whole, so that the height of the cutting blade can be adjusted according to the actual use situation, thereby improving the practicality of the lawn mower. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the local structure of the connection between the mounting shaft and the mounting block of the utility model.

[0018] In the figure: 1 mounting seat, 2 universal wheel, 3 U-type frame, 4 first threaded rod, 5 slide groove, 6 moving block, 7 first driving assembly, 71 dual-axis servo motor, 72 limit block, 73 rotating shaft, 74 driving bevel gear, 75 driven bevel gear, 8 U-type block, 9 mounting groove, 10 mounting shaft, 11 second driving assembly, 111 driving motor, 112 driving gear, 113 driven gear, 12 mounting block, 13 connecting groove, 14 connecting block, 15 cutting blade, 16 rectangular groove, 17 second threaded rod, 18 positioning groove, 19 positioning block, 20 third driving assembly, 201 worm wheel, 202 worm, 203 handwheel. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-2 The utility model provides a technical solution: a vertical output lawn mower which is easy to replace the blade head, comprising a mounting seat 1 and a cutting blade 15, wherein universal wheels 2 are fixedly installed at the front and rear ends on the left and right sides of the bottom of the mounting seat 1, a U-shaped frame 3 is fixedly installed on the top of the mounting seat 1, and a push rod located on the right side of the U-shaped frame 3 is fixedly installed on the top of the mounting seat 1, and a first threaded rod 4 with one end movably connected to the top of the mounting seat 1 is movably installed on the left and right sides of the inner top wall of the U-shaped frame 3, and a first bearing is fixedly installed on the left and right sides of the inner top wall of the U-shaped frame 3 and the left and right sides of the top of the mounting seat 1, and the first threaded rod 4 is rotatably connected to the U-shaped frame 3 and the mounting seat 1 respectively through the first bearing, and a slide groove 5 is opened on the left and right sides of the inner wall of the U-shaped frame 3, and a moving block 6 threadedly connected to the outer sides of the two first threaded rods 4 is movably installed between the two slide grooves 5, and threaded holes respectively matched with the two first threaded rods 4 are opened on the left and right sides of the inside of the moving block 6.

[0021] A first driving assembly 7 is fixedly installed on the inner top wall of the U-shaped frame 3, and the left and right ends of the first driving assembly 7 are respectively fixedly connected to the outer sides of the two first threaded rods 4. The first driving assembly 7 includes a double-axis servo motor 71. The inner top wall of the U-shaped frame 3 is fixedly installed with a double-axis servo motor 71 located between the two first threaded rods 4. The model of the double-axis servo motor 71 can be HDMF2089050. Two limit blocks 72 are fixedly installed on the inner top wall of the U-shaped frame 3 and are respectively located on the left and right sides of the double-axis servo motor 71. The left and right output shafts of the double-axis servo motor 71 are fixedly installed with a rotating shaft 73, one end of which extends to the opposite sides of the two limit blocks 72 respectively. The insides of the two limit blocks 72 are provided with first mounting holes adapted to the rotating shaft 73. The opposite sides of the two rotating shafts 73 are fixedly installed with driving bevel gears 74. The outer sides of the two first threaded rods 4 are fixedly installed with driven bevel gears 75 located above the moving block 6 and one end of which is respectively meshed with the two driving bevel gears 74.

[0022] A U-shaped block 8 located between the two first threaded rods 4 is fixedly installed at the bottom of the moving block 6, a mounting groove 9 located between the left and right universal wheels 2 is opened at the bottom of the mounting seat 1, a mounting shaft 10 with one end penetrating the U-shaped block 8 and extending to the inside of the mounting groove 9 is movably installed at the bottom of the moving block 6, a second bearing located inside the U-shaped block 8 is fixedly installed at the bottom of the moving block 6, the mounting shaft 10 is rotatably connected to the bottom of the moving block 6 through the second bearing, a second mounting hole matched with the mounting shaft 10 is opened on the inner bottom wall of the U-shaped block 8, a through hole matched with the mounting shaft 10 is opened at the top of the mounting seat 1, and one end of the mounting shaft 10 extends through the through hole to the inside of the mounting groove 9.

[0023] A second drive assembly 11 is fixedly installed on the right side of the U-shaped block 8, one end of which is fixedly connected to the outer side of the mounting shaft 10. The second drive assembly 11 includes a drive motor 111. The drive motor 111 is fixedly installed on the right side of the U-shaped block 8. The model of the drive motor 111 may be Y355. A drive gear 112 is fixedly installed on the output shaft of the drive motor 111. A driven gear 113 is fixedly installed on the outer side of the mounting shaft 10, which is located between the U-shaped block 8 and the mounting seat 1 and has one end meshed with the drive gear 112.

[0024] A mounting block 12 located inside the mounting groove 9 is fixedly installed at the bottom of the mounting shaft 10, a connecting groove 13 is provided at the bottom of the mounting block 12, a connecting block 14 with one end extending to the bottom of the mounting block 12 is movably installed inside the connecting groove 13, the top of the connecting block 14 is in contact with the inner top wall of the connecting groove 13, a cutting blade 15 is fixedly installed at the bottom of the connecting block 14, the left and right sides of the inner wall of the connecting groove 13 are connected with rectangular grooves 16 provided on the mounting block 12, and second A threaded rod 17, a third bearing is fixedly installed on the inner walls of the opposite sides of the two rectangular grooves 16, the second threaded rod 17 is rotatably connected to the inner wall of the rectangular groove 16 through the third bearing, and positioning grooves 18 are provided on the tops of the left and right sides of the connecting block 14, and positioning blocks 19 are movably installed inside the two rectangular grooves 16, which are respectively threadedly connected to the outer sides of the two second threaded rods 17 and one end of which extends to the inside of the two positioning grooves 18 respectively, and threaded grooves respectively adapted to the two second threaded rods 17 are provided on the opposite sides of the two positioning blocks 19.

[0025] The outer sides of the two second threaded rods 17 are fixedly installed with one end movably connected to the inner top walls of the two rectangular grooves 16 and the other end extends to the bottom of the mounting block 12. The third drive assembly 20 includes a worm gear 201. The outer sides of the two second threaded rods 17 are fixedly installed with worm gears 201 respectively located on the opposite sides of the two positioning blocks 19. The inner top walls of the two rectangular grooves 16 are movably installed with a worm 202, one end of which is respectively meshed with the two worm gears 201 and the other end extends to the bottom of the mounting block 12. The inner top walls of the two rectangular grooves 16 are fixedly installed with a fourth bearing. The worm 202 is rotatably connected to the inner top wall of the rectangular groove 16 through the fourth bearing, and the bottoms of the two worm gears 202 are fixedly installed with a handwheel 203.

[0026] When in use, the dual-axis servo motor 71 can be started by an external controller to drive the two rotating shafts 73 and the two driving bevel gears 74 to rotate, and then the two first threaded rods 4 are driven to rotate through the two driven bevel gears 75. During the rotation process, the two first threaded rods 4 will drive the moving block 6, the mounting shaft 10, the mounting block 12 and the cutting blade 15 to move downward as a whole, so as to adjust the height of the cutting blade 15 according to the actual usage conditions (such as the type of grass, ground conditions, etc.). After the adjustment is completed, the driving motor 111 can be started to drive the driving gear 112 to rotate, and then the driven gear 113 can be used to drive the mounting shaft 10, the mounting block 12 and the cutting blade 15 to rotate as a whole, and then the push rod can be used to move the lawn mower to perform mowing operations. When the cutter head needs to be replaced, the two hand wheels 203 can be turned to drive the two worm gears 202 to rotate, and then the two worm gears 201 can be used to drive the two second worm gears 201 to move downward. The threaded rod 17 rotates, and the two second threaded rods 17 will drive the two positioning blocks 19 to move away from each other during the rotation process, so that the two positioning blocks 19 are respectively moved out of the inside of the two positioning grooves 18, thereby releasing the position restriction of the connecting block 14. At this time, the connecting block 14 can be pulled out from the inside of the connecting groove 13 to remove the cutting blade 15, and then the connecting block 14 on the new cutting blade 15 is inserted into the inside of the connecting groove 13 until the top of the connecting block 14 is in contact with the inner top wall of the connecting groove 13, and then the two hand wheels 203 are respectively turned in the opposite direction to drive the two second threaded rods 17 to rotate in the opposite direction. At this time, the two second threaded rods 17 will drive the two positioning blocks 19 to move relative to each other during the rotation process, so that the two positioning blocks 19 are respectively moved to the inside of the two positioning grooves 18, thereby fixing the connecting block 14 and the cutting blade 15, that is, completing the replacement of the cutter head, which is simple to operate and easy to replace, thereby facilitating the use of the user.

[0027] In summary, the vertical output lawn mower that is easy to replace the cutter head drives the two worms 202 to rotate by turning the two hand wheels 203, and then drives the two second threaded rods 17 to rotate through the two worm wheels 201, and the two second threaded rods 17 will drive the two positioning blocks 19 to move away from each other during the rotation, so that the two positioning blocks 19 are respectively moved out from the inside of the two positioning grooves 18, thereby releasing the position restriction of the connecting block 14. At this time, the connecting block 14 can be pulled out from the inside of the connecting groove 13, so as to remove the cutting blade 15, thereby achieving the purpose of facilitating the disassembly of the cutter head and facilitating the replacement of the cutter head. Secondly, the two shafts 73 and the two driving bevel gears are driven by starting the dual-axis servo motor 71. 74 rotates, and then drives the two first threaded rods 4 to rotate through the two driven bevel gears 75, and the two first threaded rods 4 will drive the moving block 6, the mounting shaft 10, the mounting block 12 and the cutting blade 15 to move downward as a whole during the rotation, so that the height of the cutting blade 15 can be adjusted according to actual usage conditions, thereby improving the practicability of the lawn mower, and solving the problem that during the use of the existing vertical output lawn mower, the blade of the lawn mower is mostly fixed by screws and nuts, which makes it inconvenient to disassemble the blade head and then to replace the blade head. Secondly, the installation position of the blade head on the existing vertical output lawn mower is mostly fixed, which makes it impossible to adjust the height of the blade head according to actual usage conditions.

[0028] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A vertical output lawn mower that is easy to replace a blade, comprising a mounting base (1) and a cutting blade (15), wherein the mounting base (1) is provided with universal wheels (2) at both the front and rear ends of the left and right sides of the bottom, and characterized in that: A U-shaped frame (3) is arranged on the top of the mounting seat (1), and first threaded rods (4) having one end movably connected to the top of the mounting seat (1) are arranged on both left and right sides of the inner top wall of the U-shaped frame (3), and sliding grooves (5) are arranged on both left and right sides of the inner wall of the U-shaped frame (3), and a moving block (6) threadedly connected to the outer sides of the two first threaded rods (4) is arranged between the two sliding grooves (5), and a first driving assembly (7) is arranged on the inner top wall of the U-shaped frame (3), and the left and right ends of the first driving assembly (7) are respectively connected to the two first threaded rods (4). The outer side of the first threaded rod (4) is fixedly connected, the bottom of the moving block (6) is provided with a U-shaped block (8) located between the two first threaded rods (4), the bottom of the mounting seat (1) is provided with a mounting groove (9) located between the left and right universal wheels (2), the bottom of the moving block (6) is provided with a mounting shaft (10) with one end penetrating the U-shaped block (8) and extending into the mounting groove (9), the right side of the U-shaped block (8) is provided with a second driving component (11) with one end fixedly connected to the outer side of the mounting shaft (10), The bottom of the mounting shaft (10) is provided with a mounting block (12) located inside the mounting groove (9), the bottom of the mounting block (12) is provided with a connecting groove (13), the inside of the connecting groove (13) is provided with a connecting block (14) with one end extending to the bottom of the mounting block (12), the cutting blade (15) is arranged at the bottom of the connecting block (14), the left and right sides of the inner wall of the connecting groove (13) are both connected with rectangular grooves (16) arranged on the mounting block (12), and the inner walls on opposite sides of the two rectangular grooves (16) are provided with a plurality of connecting pieces. A second threaded rod (17) is provided, and positioning grooves (18) are provided on the tops of the left and right sides of the connecting block (14). Positioning blocks (19) are provided inside the two rectangular grooves (16), which are respectively threadedly connected to the outer sides of the two second threaded rods (17) and one end of which extends to the inside of the two positioning grooves (18). A third driving component (20) is provided on the outer sides of the two second threaded rods (17), one end of which is movably connected to the inner top walls of the two rectangular grooves (16) and the other end of which extends to the bottom of the mounting block (12).

2. A vertical output lawn mower that is easy to replace the cutter head according to claim 1, characterized in that: The first driving assembly (7) comprises a double-axis servo motor (71), the inner top wall of the U-shaped frame (3) is fixedly mounted with the double-axis servo motor (71) located between the two first threaded rods (4), the inner top wall of the U-shaped frame (3) is fixedly mounted with two limit blocks (72) located respectively on the left and right sides of the double-axis servo motor (71), the left and right output shafts of the double-axis servo motor (71) are both fixedly mounted with a rotating shaft (73) with one end extending to the opposite sides of the two limit blocks (72), the opposite sides of the two rotating shafts (73) are both fixedly mounted with a driving bevel gear (74), and the outer sides of the two first threaded rods (4) are both fixedly mounted with a driven bevel gear (75) located above the moving block (6) and one end of which is respectively meshed with the two driving bevel gears (74).

3. The vertical output lawn mower with easy replacement of the cutter head according to claim 1, characterized in that: The second driving assembly (11) comprises a driving motor (111), the driving motor (111) being fixedly mounted on the right side of the U-shaped block (8), a driving gear (112) being fixedly mounted on the output shaft of the driving motor (111), and a driven gear (113) being located between the U-shaped block (8) and the mounting seat (1) and having one end meshing with the driving gear (112) being fixedly mounted on the outer side of the mounting shaft (10).

4. The vertical output lawn mower with easy replacement of the cutter head according to claim 1, characterized in that: The third driving assembly (20) comprises a worm wheel (201), the outer sides of the two second threaded rods (17) are fixedly mounted with worm wheels (201) respectively located on opposite sides of the two positioning blocks (19), the inner top walls of the two rectangular grooves (16) are movably mounted with worms (202) with one end respectively meshing with the two worm wheels (201) and the other end extending to the bottom of the mounting block (12), and the bottoms of the two worms (202) are fixedly mounted with hand wheels (203).

5. The vertical output lawn mower with easy replacement of the cutter head according to claim 1, characterized in that: First bearings are fixedly mounted on the left and right sides of the inner top wall of the U-shaped frame (3) and the left and right sides of the top of the mounting seat (1), and the first threaded rod (4) is rotatably connected to the U-shaped frame (3) and the mounting seat (1) respectively through the first bearings.

6. The vertical output lawn mower with easy replacement of the cutter head according to claim 1, characterized in that: A second bearing located inside the U-shaped block (8) is fixedly mounted on the bottom of the moving block (6), and the mounting shaft (10) is rotatably connected to the bottom of the moving block (6) via the second bearing.

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