CN113141876A - Grass mowing machine head with adjustable angle - Google Patents
Grass mowing machine head with adjustable angle Download PDFInfo
- Publication number
- CN113141876A CN113141876A CN202010013102.2A CN202010013102A CN113141876A CN 113141876 A CN113141876 A CN 113141876A CN 202010013102 A CN202010013102 A CN 202010013102A CN 113141876 A CN113141876 A CN 113141876A
- Authority
- CN
- China
- Prior art keywords
- gear
- bolt
- shell
- angle
- fixed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D69/00—Driving mechanisms or parts thereof for harvesters or mowers
- A01D69/06—Gearings
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D34/00—Mowers; Mowing apparatus of harvesters
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D69/00—Driving mechanisms or parts thereof for harvesters or mowers
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Harvester Elements (AREA)
Abstract
The invention relates to a grass trimmer head with an adjustable angle. The grass trimmer head comprises a shell, a power transmission mechanism and an angle adjusting mechanism, wherein the right side of the shell comprises an upper shell and a lower shell, the upper shell and the lower shell are both L-shaped pipes, the upper shell and the lower shell are movably fixed with each other and can freely rotate, the power transmission mechanism comprises a driving gear, a transmission gear and an output gear which are all sector gears, the driving gear is arranged in an upper shell vertical pipe, the transmission gear is arranged in a horizontal pipe which is movably fixed with the upper shell and the lower shell, the output gear is arranged in a lower shell vertical pipe, meanwhile, the driving gear is connected with a driving shaft in the handle rod and transmits power to the transmission gear and the output gear, because the sector gear is meshed, the connecting gear cannot be damaged, the output of power cannot be influenced, the angle adjusting mechanism is composed of a bolt and an adjusting sheet which is arranged on the upper shell and is fixed by a bolt seat arranged on the lower shell, and the bolt penetrates through a fixing part of the bolt seat and is inserted into an adjusting hole of the adjusting sheet.
Description
Technical Field
The invention relates to a grass trimmer head, in particular to a grass trimmer head of a gasoline power grass trimmer.
Background
The prior lawn mower for repairing lawns is generally divided into an electric lawn mower and a gasoline power lawn mower, wherein a power mechanism of the electric lawn mower is arranged in a head of the lawn mower, so that an angle adjusting mechanism arranged at the joint of the head and a handle rod does not influence the power output of the power mechanism, but the electric lawn mower has short service time and heavy head due to the capacity problem of a battery jar, and greatly influences the working efficiency, while the gasoline power lawn mower arranges a gasoline engine of the power mechanism at the rear end of the handle rod, an output shaft of the gasoline engine is connected with an output shaft of the head through a driving shaft arranged in the handle rod, and the output shaft of the head is connected and meshed with the driving shaft through two sector gears at a fixed angle, so that the existing gasoline power lawn mower has a 7-shaped integrated head, and if the bending part of the lawn mower is directly movably connected, the lawn mower head is used for adjusting the angle of the lawn mower and the handle rod, when the angle of the grass trimmer head is changed, the sector gear of the output shaft of the grass trimmer head and the sector gear of the driving shaft cannot be tightly meshed, so that the power output is influenced, and the gears are very easy to damage, therefore, the angle of the head of the existing gasoline-powered grass trimmer is not adjustable, and the working efficiency of workers and the effect of trimming lawns are influenced due to the fact that the angle cannot be adjusted.
Disclosure of Invention
In view of the defects of the grass trimmer head of the existing gasoline power grass trimmer, the invention aims to solve the technical problems that: provides a grass trimmer head which does not affect power output, does not damage a connecting gear and can adjust the angle.
In order to achieve the above object, according to one aspect of the present invention, the present invention is achieved by the following technical measures: an angle adjustable trimmer head comprising:
the shell consists of an upper shell and a lower shell, the upper shell and the lower shell are both L-shaped pipes, and the upper shell and the lower shell are movably fixed with each other through a transverse pipe, so that the upper shell and the lower shell can freely rotate;
the power transmission mechanism comprises a driving gear, a transmission gear and an output gear, wherein the driving gear, the transmission gear and the output gear are all sector gears, the driving gear is arranged in an upper shell vertical pipe, the transmission gear is arranged in a horizontal pipe which is movably fixed between an upper shell and a lower shell, the output gear is arranged in a lower shell vertical pipe, the driving gear is connected with a driving shaft in a handle rod and transmits power to the transmission gear and the output gear, and an output shaft is also fixed on the output gear;
the angle adjusting mechanism comprises an adjusting sheet, a bolt seat fixing part, a bolt and a spring, wherein the adjusting sheet is arranged on the upper shell, a row of adjusting holes are formed in the adjusting sheet, the bolt seat fixing part is arranged on the lower shell, the bolt penetrates through the bolt seat fixing part and is inserted into the adjusting holes, the bolt can be separated from the adjusting holes by pulling the bolt, and meanwhile, the bolt is prevented from being separated from the adjusting holes without external force action through the elasticity of the spring arranged on the bolt.
The grass trimmer head with the adjustable angle is movably fixed through the L-shaped upper shell and the L-shaped lower shell, and meanwhile, the driving gear and the output gear are connected between the transmission shaft and the transmission gear, so that the angle adjustment of the grass trimmer head with gasoline power can be realized, the meshing degree of each connecting gear cannot be changed, the connecting gears cannot be damaged, and the power output cannot be influenced.
Furthermore, the driving gear is fixed in the vertical pipe of the upper shell, the fan end of the driving gear extends into the horizontal pipe of the upper shell, the output gear is fixed in the vertical pipe of the lower shell, the fan end of the output gear extends into the horizontal pipe of the lower shell, and the two transmission gears are connected through the transmission shaft. The power transmission device is reasonable in design structure, convenient to install and stable in power transmission.
Further, bearings are arranged on the driving gear, the transmission gear and the output gear in the upper shell and the lower shell, wherein the bearings on the driving gear and the output gear are sleeved on the driving gear and the output gear and are in contact with the upper shell and the inner tube wall of the lower shell, and the bearing on the transmission gear is inserted into the transmission shaft. Above-mentioned design is in order to reduce the friction, and the gear is fixed comparatively firm also simultaneously, is difficult for rocking.
Furthermore, one side of the transverse pipe of the upper shell extends to form an insertion pipe, the insertion pipe is inserted into the transverse pipe of the lower shell to movably fix the upper shell and the lower shell, a bearing in the transmission shaft is inserted with a fastening bolt, two ends of the fastening bolt extend out of the transverse pipes of the upper shell and the lower shell, nuts are screwed on two ends of the fastening bolt, and the angle between the upper shell and the lower shell is fixed through the nuts. Above-mentioned project organization is simple reasonable, simultaneously because the aircraft nose torsion is great when using, increases the bolt life-span.
Furthermore, the upper shell and the lower shell are respectively provided with a bolt hole for screwing a fastening bolt. The design enables the fastening bolt to be directly fixed, the nut only has the functions of limiting and assisting locking, and the structure is firmer.
Furthermore, one side of the bolt inserted in the adjusting hole is a conical head, the diameter of the conical head is larger than that of the reset spring, one end of the spring can abut against the conical head, the other end of the spring abuts against the bolt seat fixing part, and the bolt far away from the conical head side penetrates through the bolt seat fixing part and is fixed with the pull handle. The structure is simple and reasonable.
Furthermore, a threaded central hole is formed in the center of the bolt seat fixing part, a bolt seat is screwed in the threaded central hole, one side, away from the adjusting hole, of the bolt seat extends out of the bolt seat fixing part to be fixed with the clamping plate, an inserting block fixed with the clamping plate is arranged on the pull handle, and the bolt penetrates through the bolt seat to be fixed with the pull handle. Above-mentioned design bolt is more stable when drawing outward, can not appear rocking the problem, and the follow-up reinsertion of being convenient for is inserted in the regulation hole again.
Compared with the prior art, the invention has the advantages that: the angle adjustment of the head of the gasoline-powered grass mower is realized, the meshing degree of each connecting gear is not changed, the connecting gears are not damaged, and the power output is not influenced.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic view of an angle-adjustable trimmer head according to the present invention.
Description of reference numerals: 1. an upper housing; 2. a lower housing; 3. a regulating sheet; 4. an adjustment hole; 5. inserting a pipe; 6. a bolt seat fixing part; 7. bolt holes; 8. a drive gear; 9. a transmission gear; 10. an output gear; 11. an output shaft; 12. an end cap; 13. fastening a bolt; 14. a nut; 15. a drive shaft; 16. a bearing; 17. a bolt; 18. a conical head; 19. a bolt seat; 20. a splint; 21. pulling a handle; 22. and (6) plugging the blocks.
Detailed Description
The invention will be described in detail hereinafter with reference to the accompanying drawings in conjunction with embodiments. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "bottom", "top", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
Example 1
Referring to fig. 1, the grass trimmer head with adjustable angle provided by this embodiment comprises an upper housing 1, a lower housing 2, an output shaft 11, an output gear 10, a transmission shaft 15, a transmission gear 9, a driving gear 8, a bearing 16, a fastening bolt 13, an end cap 12 and an angle adjusting device, wherein the upper housing 1 and the lower housing 2 are both L-shaped aluminum alloy circular tubes, an insertion tube 5 with a diameter smaller than that of a horizontal tube extends outwards from the tube opening of the horizontal tube of the upper housing 1, the upper housing 1 is inserted into the horizontal tube of the lower housing 2 through the insertion tube 5, so that the upper housing and the lower housing can rotate freely, the centers of the closed ends of the horizontal tubes of the upper housing 1 and the lower housing 2 are both provided with bolt holes 7, an arc-shaped adjusting piece 3 extends upwards from the step opening of the horizontal tube of the upper housing 1, a row of adjusting holes 4 are formed in the adjusting piece 3, and a bolt seat fixing portion 6 is fixed above the lower housing 2, the central hole of the bolt seat fixing part 6 is a threaded through hole, the driving gear 8, the transmission gear 9 and the output gear 10 are all sector gears, the driving gear 8 is fixed in the vertical tube of the upper casing 1 through a bearing 16, the sector end of the driving gear 8 extends into the horizontal tube of the upper casing 1, the rear end of the driving gear 8 is connected with the driving shaft in the handle rod, the output gear 10 is fixed in the vertical tube of the lower casing 2 through a bearing 16, the sector end of the output gear 10 extends into the horizontal tube of the lower casing 2, the lower end of the output gear 10 is fixed with an output shaft 11, the center of the end cover 12 is provided with a central hole, after the central hole of the end cover 12 passes through the output shaft 11, the end cover 12 is screwed on the lower casing 2 for sealing the lower casing 2, the fastening bolt 13 penetrates through the bolt hole 7 of the lower casing 2 and penetrates through the bolt hole of the upper casing 1, and a nut 14 is screwed at each end of the fastening bolt 13, the fastening bolt 13 is fixed with a bearing, the bearing is sleeved with a transmission shaft 15, two ends of the transmission shaft 15 are respectively fixed with a transmission gear 9, the two transmission gears 9 are respectively engaged with a driving gear 8 and an output gear 10, the angle adjusting device comprises a bolt seat 19, a bolt 17, a pull handle 21 and a reset spring besides a bolt seat fixing part 6 and an adjusting sheet 3, one end of the bolt seat 19 is a hollow threaded pipe, the other end of the bolt seat 19 is a hexagon nut, two parallel clamping plates 20 extend out of the hexagon nut, a hollow threaded pipe end of the bolt seat 19 is screwed in from the right end of the bolt seat fixing part 6 of the lower shell 2, the left end of the pull handle 21 extends to form an inserting block 22 inserted in the two clamping plates 20 of the bolt seat 19, the left end of the bolt 17 is a conical head 18, the right side diameter of the conical head 18 is larger than the diameter of the body of the bolt 17, the right end of the bolt 17 passes through the spring and the center of the bolt seat 19 and then is inserted in the pull handle 21, the conical head 18 of the bolt 17 is inserted into the adjusting hole 4 of the adjusting sheet 3 and is tightly pressed by the spring.
In the angle-adjustable grass trimmer head provided by the embodiment, when the angle needs to be adjusted, the nut 14 at one end of the fastening bolt 13 is firstly loosened, then the conical head 18 of the bolt 17 of the angle adjusting device is pulled out of the adjusting hole 4 of the adjusting sheet 3, then the lower shell 2 is rotated to enable the vertical pipe of the lower shell 2 to form a proper angle with the vertical pipe of the upper shell 1, then the pull handle 21 of the bolt 17 is released, the bolt 21 is reinserted into the other adjusting hole 4 of the adjusting sheet 3 under the action of the spring to enable the upper shell and the lower shell to be fixed, then the nut 14 at one end of the fastening bolt 13 is screwed, the output gear 10 rotates around the transmission gear 9 in the rotating process of the lower shell 2 around the upper shell 1, but the transmission gear 9 and the drive gear 8 do not move, so that the angle-adjustable grass trimmer head is connected with the drive gear 8 and the output gear 11 through the transmission shaft 15 and the two transmission gears 9, the angle adjustment of the head of the gasoline-powered grass mower can be realized, the meshing degree of each connecting gear cannot be changed, the connecting gears cannot be damaged, and the power output cannot be influenced.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various changes and modifications may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. An angle-adjustable grass trimmer head is characterized by comprising:
the shell consists of an upper shell and a lower shell, the upper shell and the lower shell are both L-shaped pipes, and the upper shell and the lower shell are movably fixed with each other through a transverse pipe, so that the upper shell and the lower shell can freely rotate;
the power transmission mechanism comprises a driving gear, a transmission gear and an output gear, wherein the driving gear, the transmission gear and the output gear are all sector gears, the driving gear is arranged in an upper shell vertical pipe, the transmission gear is arranged in a horizontal pipe which is movably fixed between an upper shell and a lower shell, the output gear is arranged in a lower shell vertical pipe, the driving gear is connected with a driving shaft in a handle rod and transmits power to the transmission gear and the output gear, and an output shaft is also fixed on the output gear;
the angle adjusting mechanism comprises an adjusting sheet, a bolt seat fixing part, a bolt and a spring, wherein the adjusting sheet is arranged on the upper shell, a row of adjusting holes are formed in the adjusting sheet, the bolt seat fixing part is arranged on the lower shell, the bolt penetrates through the bolt seat fixing part and is inserted into the adjusting holes, the bolt can be separated from the adjusting holes by pulling the bolt, and meanwhile, the bolt is prevented from being separated from the adjusting holes without external force action through the elasticity of the spring arranged on the bolt.
2. The adjustable-angle mower head as claimed in claim 1, wherein said driving gear is fixed in the vertical tube of the upper housing, and the fan end of the driving gear extends into the horizontal tube of the upper housing, said output gear is fixed in the vertical tube of the lower housing, and the fan end of the output gear extends into the horizontal tube of the lower housing, and said two transmission gears are connected by a transmission shaft.
3. An angle adjustable mower head as claimed in claim 1 or 2, wherein bearings are provided on the drive gear, the transmission gear and the output gear in said upper housing and said lower housing, wherein the bearings on the drive gear and the output gear are sleeved on the drive gear and the output gear and are in contact with the inner walls of the upper housing and said lower housing, and the bearing on the transmission gear is inserted into the transmission shaft.
4. A grass trimmer head with an adjustable angle as claimed in claim 3, characterized in that one side of the transverse pipe of the upper housing extends to form an insertion pipe, the insertion pipe is inserted into the transverse pipe of the lower housing to movably fix the upper housing and the lower housing, the bearing in the transmission shaft is inserted to form a fastening bolt, two ends of the fastening bolt extend out of the transverse pipes of the upper housing and the lower housing, and nuts are screwed on two ends of the fastening bolt to fix the angle between the upper housing and the lower housing.
5. An angle adjustable trimmer head according to claim 4, characterized in that the upper housing and the lower housing are provided with bolt holes for fastening bolts to be screwed.
6. The adjustable angle head as claimed in claim 1, wherein the pin has a tapered end at a side inserted into the adjustment hole, the tapered end has a diameter larger than that of the return spring, so that one end of the spring abuts against the tapered end and the other end abuts against the fixing portion of the pin holder, and the pin far from the tapered end passes through the fixing portion of the pin holder and is fixed to the handle.
7. The adjustable-angle mower head as claimed in claim 6, wherein said latch seat fixing portion has a threaded central hole at its center, a latch seat is rotatably connected in said threaded central hole, a side of said latch seat remote from said adjustment hole extends out of said latch seat fixing portion to be fixed to said clamping plate, said pull handle has a plug block fixed to said clamping plate, and said latch is fixed to said pull handle through said latch seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010013102.2A CN113141876A (en) | 2020-01-07 | 2020-01-07 | Grass mowing machine head with adjustable angle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010013102.2A CN113141876A (en) | 2020-01-07 | 2020-01-07 | Grass mowing machine head with adjustable angle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113141876A true CN113141876A (en) | 2021-07-23 |
Family
ID=76881416
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010013102.2A Pending CN113141876A (en) | 2020-01-07 | 2020-01-07 | Grass mowing machine head with adjustable angle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113141876A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115415500A (en) * | 2022-09-14 | 2022-12-02 | 金华市广硕机电有限公司 | But angle regulation's chain saw head of beating grass and processing equipment thereof |
-
2020
- 2020-01-07 CN CN202010013102.2A patent/CN113141876A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115415500A (en) * | 2022-09-14 | 2022-12-02 | 金华市广硕机电有限公司 | But angle regulation's chain saw head of beating grass and processing equipment thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN211861146U (en) | Grass mowing machine head with adjustable angle | |
| CN113141876A (en) | Grass mowing machine head with adjustable angle | |
| CN211908248U (en) | Liftable cable combination support frame of adjusting | |
| CN210616444U (en) | Split-assembling tool for large pump shell of engine | |
| CN216336500U (en) | Bottle cap rotating equipment | |
| CN110576413B (en) | Gearbox oil pipe clamp release tool | |
| CN201851483U (en) | Connecting rod mechanism of electrical appliance | |
| CN212479707U (en) | Agricultural machinery pump connection structure | |
| CN210476750U (en) | Bevel gear transmission multipurpose wrench | |
| CN203362751U (en) | Fast installation connector | |
| CN219504640U (en) | Internal structure of electric screwdriver | |
| CN213145549U (en) | Special opening device for underground butterfly valve | |
| CN208601413U (en) | A kind of self-locking spanner suitable for narrow space | |
| CN111276861A (en) | Automatic termination of electric power construction | |
| CN204860059U (en) | Portable mower | |
| CN204810974U (en) | Portable lawn mower | |
| CN215659987U (en) | Swift earth bar mounting tool | |
| CN218992104U (en) | Pneumatic main shaft | |
| CN112109027B (en) | Vertical electric wrench and using method | |
| CN219633066U (en) | Secondary disassembling tool for top cover closing bolt of hydropower plant | |
| CN220863903U (en) | Screw extracting tool that uses in narrow and small space on aircraft | |
| CN219911528U (en) | Bearing pedestal convenient for oiling | |
| CN214941107U (en) | Change rack extracting tool for node | |
| CN214946449U (en) | Turbine butterfly valve convenient to adjust | |
| CN219054219U (en) | Pneumatic control valve disk seat assembly and disassembly tools that nuclear power station was used |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |