CN214228924U

CN214228924U - Double-gear variable-pitch mower

Info

Publication number: CN214228924U
Application number: CN202022490324.1U
Authority: CN
Inventors: 陈垄钧; 颜君; 乔永刚; 张文辉
Original assignee: Xiuyi Fujian Landscape Engineering Co ltd
Current assignee: Xiuyi Fujian Landscape Engineering Co ltd
Priority date: 2020-11-02
Filing date: 2020-11-02
Publication date: 2021-09-21
Anticipated expiration: 2030-11-02

Abstract

The utility model relates to the technical field of garden engineering, in particular to a double-gear variable-pitch mower, which comprises a straight rod, a support rod, a power assembly and a working assembly; the supporting rod is fixedly connected to the top of the straight rod; the top end of the supporting rod is provided with a power assembly; a working assembly is arranged inside the straight rod; the power assembly comprises a power machine, a cover, a first rotating shaft, a first bevel gear, a second rotating shaft and a second bevel gear; the power machine is arranged at the end part of the support rod; a cover is arranged at the top of the power machine; the output end of the power machine is provided with a first rotating shaft; a first bevel gear is arranged at the end part of the first rotating shaft; a second rotating shaft is arranged inside the straight rod; a second bevel gear is arranged at the top of the second rotating shaft and is in a meshed state with the first bevel gear; so that the cutting mode of the mower can be selected according to the situation.

Description

Double-gear variable-pitch mower

Technical Field

The utility model relates to a garden engineering technical field specifically is a two-gear variable-pitch lawn mower.

Background

The maintenance of garden engineering needs to trim the lawn, and the flywheel type lawn mower is commonly used at present, and drives a flywheel to rotate through a gasoline engine, and blades or a grass mowing rope are connected to the flywheel to enlarge the mowing area for lawn trimming operation. At present, most of lawn mowing machines adopt cutting rope type flywheel lawn mowers, and the main reasons are that the lawn mowing machines are light in weight, easy to control, time-saving and labor-saving, and difficult to cut other nursery stocks and garden facilities. Because the specifications of the grass mowing ropes are different, frames are not installed on the outer edge of the flywheel when the grass mowing ropes are used for cutting generally, when the grass mowing ropes meet other nursery stocks or obstacles such as street lamps and electric poles, the grass mowing ropes strike the obstacles easily, the rotation number is reduced, grass around the obstacles cannot be cut, the grass can grow vigorously, and the overall impression quality of the lawn is damaged.

Disclosure of Invention

An object of the utility model is to provide a but two gear displacement lawn mowers to solve current lawn mower when meetting barriers such as other nursery stocks or street lamps, pole, beat the grass rope and strike the barrier easily, cause the technical problem that the revolution reduces the grass around the unable cutting barrier.

In order to achieve the above object, the utility model provides a following technical scheme:

a double-gear variable-pitch mower comprises a straight rod, a support rod, a power assembly and a working assembly; the supporting rod is fixedly connected to the top of the straight rod; the top end of the supporting rod is provided with a power assembly; a working assembly is arranged inside the straight rod; the power assembly comprises a power machine, a cover, a first rotating shaft, a first bevel gear, a second rotating shaft and a second bevel gear; the power machine is arranged at the end part of the support rod; a cover is arranged at the top of the power machine; the output end of the power machine is provided with a first rotating shaft; a first bevel gear is arranged at the end part of the first rotating shaft; a second rotating shaft is arranged inside the straight rod; and a second bevel gear is arranged at the top of the second rotating shaft and is in a meshed state with the first bevel gear.

Further, the working assembly comprises a driving gear, a gear retractor, an upper meshing gear, a grass mowing rope, a lower meshing gear and an annular blade; the driving gear is arranged on the side wall of the second rotating shaft; the upper meshing gear penetrates through the wall body of the straight rod; the grass beating rope is fixedly connected with the side wall of the upper meshing gear; the lower meshing gear penetrates through the wall body of the straight rod; the annular blade is fixedly connected with the side wall of the lower meshing gear; the gear telescopic device is arranged inside the straight rod.

Further, the gear expansion piece comprises a supporting plate, an air cylinder, a push rod and a spline sleeve; the supporting plate is fixedly connected to the inner wall of the straight rod; the cylinder is arranged at the bottom of the supporting plate; the output end of the cylinder is provided with a push rod; the spline housing is sleeved on the side wall of the second rotating shaft, and the outer side wall of the spline housing is connected to the driving gear in a sliding mode.

Further, the inner side wall of the driving gear is provided with a spline groove; and the upper meshing gear and the lower meshing gear are both internal meshing gears.

Further, a baffle is fixedly connected to the bottom of the straight rod; the top of the lower meshing gear is provided with a protective frame; the top of the support rod is provided with a handle; the top of baffle is provided with clearance mechanism.

Further, the cleaning mechanism comprises a sliding plate, an air bag, a piston rod and a push plate; the sliding plate is connected to the side wall of the straight rod through a spring; the air bag is arranged at the top of the baffle; the piston cylinder is fixedly connected to the top of the baffle plate and is communicated with the piston cylinder through an air duct; and the output end of the piston cylinder is provided with a push plate.

The utility model has the advantages that:

1. the utility model discloses in, through setting up power component and work subassembly, easily prune the lawn, simultaneously because the use of gear expansion bend for the cutting machine falls into two gears, when drive gear and last meshing gear meshing, can prune the lawn through the rope of beating the grass, when drive gear and meshing gear meshing down, can prune the lawn through annular blade, still set up the protection frame simultaneously, can protect barriers such as nursery stock, street lamp not hurt.

2. The utility model discloses in, set up clearance mechanism, use through the cooperation of slide, gasbag, piston rod and push pedal, can go out the disconnected grass clearance near annular blade, improved the whole result of use of this device.

Drawings

Fig. 1 is a schematic view of the overall structure of a dual-gear variable-pitch mower of the present invention;

FIG. 2 is a schematic view of a partial cross-sectional structure of a dual-range variable-pitch mower according to the present invention;

FIG. 3 is a schematic structural view of a spline housing of a double-gear variable-pitch mower of the present invention;

FIG. 4 is a schematic structural view of a driving gear of a dual-gear variable-pitch mower according to the present invention;

FIG. 5 is a schematic structural view of an upper engaging gear of a dual-gear variable-pitch mower according to the present invention;

FIG. 6 is a view showing the structure of the area A in FIG. 2;

illustration of the drawings: 1. a straight rod; 11. a baffle plate; 2. a strut; 21. a handle; 3. a power assembly; 31. a power machine; 32. a machine cover; 33. a first rotating shaft; 34. a first bevel gear; 35. a second rotating shaft; 36. a second bevel gear; 4. a working assembly; 41. a drive gear; 411. a spline groove; 42. a gear retractor; 421. a support plate; 422. a cylinder; 423. a push rod; 424. a spline housing; 43. an upper meshing gear; 44. beating a straw rope; 45. a lower meshing gear; 46. an annular blade; 5. protecting the frame; 6. a cleaning mechanism; 61. a slide plate; 62. an air bag; 63. a piston cylinder; 64. a push plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 6, the double-gear variable-pitch mower comprises a straight rod 1, a support rod 2, a power assembly 3 and a working assembly 4; the supporting rod 2 is fixedly connected to the top of the straight rod 1; the top end of the support rod 2 is provided with a power assembly 3; a working component 4 is arranged inside the straight rod 1; the power assembly 3 comprises a power machine 31, a cover 32, a first rotating shaft 33, a first bevel gear 34, a second rotating shaft 35 and a second bevel gear 36; the power machine 31 is arranged at the end part of the support rod 2; the top of the power machine 31 is provided with a cover 32; the output end of the power machine 31 is provided with a first rotating shaft 33; a first bevel gear 34 is arranged at the end part of the first rotating shaft 33; a second rotating shaft 35 is arranged inside the straight rod 1; a second bevel gear 36 is arranged at the top of the second rotating shaft 35, and the second bevel gear 36 is meshed with the first bevel gear 34; in operation, the power machine 31 rotates the first shaft 33, so that the first bevel gear 34 rotates, and the second bevel gear 36 engaged therewith also rotates, thereby rotating the second shaft 35.

As an embodiment of the present invention, the working assembly 4 includes a driving gear 41, a gear retractor 42, an upper meshing gear 43, a grass cutting rope 44, a lower meshing gear 45 and a ring blade 46; the driving gear 41 is arranged on the side wall of the second rotating shaft 35; the upper meshing gear 43 is arranged in the wall body of the straight rod 1 in a penetrating way; the grass beating rope 44 is fixedly connected with the side wall of the upper meshing gear 43; the lower meshing gear 45 is arranged in the wall body of the straight rod 1 in a penetrating manner; the annular blade 46 is fixedly connected with the side wall of the lower meshing gear 45; the gear expansion piece 42 is arranged inside the straight rod 1; the gear expansion and contraction device 42 comprises a supporting plate 421, a cylinder 422, a push rod 423 and a spline housing 424; the supporting plate 421 is fixedly connected to the inner wall of the straight rod 1; the cylinder 422 is arranged at the bottom of the supporting plate 421; a push rod 423 is arranged at the output end of the air cylinder 422; the spline sleeve 424 is sleeved on the side wall of the second rotating shaft 35, and the outer side wall of the spline sleeve 424 is slidably connected to the driving gear 41; the inner side wall of the driving gear 41 is provided with a spline groove 411; the upper meshing gear 43 and the lower meshing gear 45 are both internal meshing gears; in operation, when the second rotating shaft 35 rotates, the driving gear 41 can rotate under the action of the spline housing 424, so that the driving gear 41 can drive the upper meshing gear 43 to rotate, and the grass mowing rope 44 can trim the lawn, and when the lawn mower encounters an obstacle, the switch of the air cylinder 422 can be opened, so that the pushing rod 423 is pushed to move, and the driving gear 41 moves downwards along the outer side wall of the spline housing 424, so that the driving gear 41 starts to be meshed with the lower meshing gear 45, and the annular blade 46 rotates, and the lawn is trimmed.

As an embodiment of the present invention, a baffle 11 is fixedly connected to the bottom of the straight rod 1; the top of the lower meshing gear 45 is provided with a protective frame 5; the top of the support rod 2 is provided with a handle 21; the top of the baffle plate 11 is provided with a cleaning mechanism 6; when the lawn mower works, when obstacles such as nursery stocks, street lamps, fences and the like are encountered, the protective frame 5 can prevent the annular blade 46 from damaging the obstacles, so that weeds near the obstacles are trimmed, and the integral attractiveness of the lawn is kept.

As an embodiment of the present invention, the cleaning mechanism 6 includes a sliding plate 61, an air bag 62, a piston cylinder 63 and a push plate 64; the sliding plate 61 is connected to the side wall of the straight rod 1 through a spring; the air bag 62 is arranged on the top of the baffle plate 11; the piston cylinder 63 is fixedly connected to the top of the baffle plate 11 and is communicated with the piston cylinder 63 through an air duct; the output end of the piston cylinder 63 is provided with a push plate 64; during operation, because the second rotates at continuous rotation for slide 61 begins to slide under the effect of centrifugal force, and keeps away from the lateral wall of straight-bar 1, makes gasbag 62 receive the extrusion, and its inside gas flows into piston cylinder 63 through the air duct, and then promotes push pedal 64 and moves forward, can clear away the garrulous grass pushing and shoving at baffle 11 top.

The working principle is as follows: when the lawn mower works, the power machine 31 drives the first rotating shaft 33 to rotate, so that the first bevel gear 34 rotates, the second bevel gear 36 meshed with the first bevel gear rotates, the second rotating shaft 35 is further driven to rotate, the driving gear 41 can rotate under the action of the spline sleeve 424, the driving gear 41 can drive the upper meshed gear 43 to rotate, the grass mowing rope 44 can trim the lawn, when the lawn mower meets an obstacle, the switch of the air cylinder 422 can be opened, the air cylinder pushes the push rod 423 to move, the driving gear 41 can move downwards along the outer side wall of the spline sleeve 424, the driving gear 41 starts to be meshed with the lower meshed gear 45, the annular blade 46 rotates, and the lawn is trimmed; because the second rotates at continuous rotation for slide 61 begins to slide under the effect of centrifugal force, and keep away from the lateral wall of straight-bar 1, makes gasbag 62 receive the extrusion, and its inside gas flows into piston cylinder 63 through the air duct, and then promotes push pedal 64 and moves forward, can clear away the garrulous grass of pushing and shoving at baffle 11 top.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A double-gear variable-pitch mower is characterized by comprising a straight rod (1), a support rod (2), a power assembly (3) and a working assembly (4); the supporting rod (2) is fixedly connected to the top of the straight rod (1); the top end of the support rod (2) is provided with a power assembly (3); a working assembly (4) is arranged inside the straight rod (1); the power assembly (3) comprises a power machine (31), a cover (32), a first rotating shaft (33), a first bevel gear (34), a second rotating shaft (35) and a second bevel gear (36); the power machine (31) is arranged at the end part of the support rod (2); a cover (32) is arranged on the top of the power machine (31); the output end of the power machine (31) is provided with a first rotating shaft (33); a first bevel gear (34) is arranged at the end part of the first rotating shaft (33); a second rotating shaft (35) is arranged inside the straight rod (1); and a second bevel gear (36) is arranged at the top of the second rotating shaft (35), and the second bevel gear (36) is meshed with the first bevel gear (34).

2. A double-range variable-pitch mower as claimed in claim 1, wherein said working assembly (4) comprises a driving gear (41), a gear retractor (42), an upper meshing gear (43), a mowing cord (44), a lower meshing gear (45) and an annular blade (46); the driving gear (41) is arranged on the side wall of the second rotating shaft (35); the upper meshing gear (43) penetrates through the wall body of the straight rod (1); the grass beating rope (44) is fixedly connected with the side wall of the upper meshing gear (43); the lower meshing gear (45) penetrates through the wall body of the straight rod (1); the annular blade (46) is fixedly connected with the side wall of the lower meshing gear (45); the gear expansion piece (42) is arranged inside the straight rod (1).

3. A double-range variable-pitch mower according to claim 2, wherein the gear retractor (42) comprises a support plate (421), a cylinder (422), a push rod (423) and a spline housing (424); the supporting plate (421) is fixedly connected to the inner wall of the straight rod (1); the air cylinder (422) is arranged at the bottom of the supporting plate (421); a push rod (423) is arranged at the output end of the air cylinder (422); the spline sleeve (424) is sleeved on the side wall of the second rotating shaft (35), and the outer side wall of the spline sleeve (424) is connected to the driving gear (41) in a sliding mode.

4. A two-speed variable-pitch mower according to claim 3, wherein the inner side wall of the driving gear (41) is provided with spline grooves (411); the upper meshing gear (43) and the lower meshing gear (45) are both ring gears.

5. A double-gear variable-pitch mower according to claim 4, wherein a baffle (11) is fixedly connected to the bottom of the straight rod (1); a protective frame (5) is arranged at the top of the lower meshing gear (45); the top of the support rod (2) is provided with a handle (21); the top of the baffle (11) is provided with a cleaning mechanism (6).

6. A double-range variable-pitch mower according to claim 5, wherein the cleaning mechanism (6) comprises a slide plate (61), an air bag (62), a piston cylinder (63) and a push plate (64); the sliding plate (61) is connected to the side wall of the straight rod (1) through a spring; the air bag (62) is arranged on the top of the baffle plate (11); the piston cylinder (63) is fixedly connected to the top of the baffle plate (11) and is communicated with the piston cylinder (63) through an air duct; and the output end of the piston cylinder (63) is provided with a push plate (64).