CN214282186U

CN214282186U - Working head assembly of handheld mower

Info

Publication number: CN214282186U
Application number: CN202022455291.7U
Authority: CN
Inventors: 施龙海
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-10-29
Filing date: 2020-10-29
Publication date: 2021-09-28
Anticipated expiration: 2030-10-29

Abstract

The utility model provides a working head subassembly of hand-held mower, place in including the shell body in the motor of shell body, the transmission shaft that links to each other with the motor and with the blade disc that the transmission shaft links to each other, the blade disc include middle fixed disc and with two blades that fixed disc links to each other, transmission shaft one end with the motor links to each other, and it is fixed with the blade disc that relative other end runs through wear-resisting subassembly, wear-resisting subassembly is the metalwork, including integrated into one piece's annular lateral wall and top surface, annular the lateral wall is close to the diameter of top surface one end is less than the annular the lateral wall deviates from the diameter of top surface one end, be provided with the central hole that is used for installing the transmission shaft on the top surface and be used for restricting the screens evagination of fixed disc position. The utility model discloses a working head subassembly security performance of hand-held mower is strong, and is durable wear-resisting, and convenience of customers carries, is fit for using for a long time.

Description

Working head assembly of handheld mower

Technical Field

The utility model belongs to the technical field of the hand-held type lawn mower, especially, relate to a work head subassembly of hand-held type lawn mower.

Background

The mower is a mechanical tool for trimming lawns, vegetations and the like, a cutter head is arranged on a travelling wheel, an engine is arranged on the cutter head, a blade is arranged on an output shaft of the engine, the speed of the blade is greatly improved by utilizing the high-speed rotation of the engine, the operation time of weeding workers is saved, and a large amount of human resources are reduced.

The similar products on the market now cause personnel's injured accident easily when using, and the security is not high enough, and during operation, the working head rotates with current plastics wearing parts together, and plastics wearing parts wearing and tearing speed is fast, and the wear rate is high to unsuitable long-time the use, for this reason we propose a security performance strong, durable wear-resisting, convenience of customers carries, is fit for the long-time working head subassembly of hand-held mower.

SUMMERY OF THE UTILITY MODEL

The utility model provides a security performance is strong, and is durable wear-resisting, and convenience of customers carries, is fit for the working head subassembly of long-time hand-held mower, the effectual problem that exists of having solved among the prior art.

In order to solve the technical problem, the utility model discloses a technical scheme does:

the utility model provides a working head subassembly of hand-held mower, place in including the shell body the motor of shell body, the transmission shaft that links to each other with the motor and with the blade disc that the transmission shaft links to each other, the blade disc include middle fixed disc and with two blades that fixed disc links to each other, transmission shaft one end with the motor links to each other, and the relative other end runs through wear-resisting subassembly and passes through fixing bolt and the blade disc is fixed, wear-resisting subassembly is the metalwork, including integrated into one piece's annular lateral wall and top surface, annular the lateral wall is close to the diameter of top surface one end is less than the annular the lateral wall deviates from the diameter of top surface one end, be provided with the central hole that is used for installing the transmission shaft on the top surface and be used for restricting the screens evagination of fixed disc position. The fixed disc is provided with the arch that corresponds with screens evagination piece, and wear-resisting subassembly includes annular lateral wall and top surface for the metalwork, and big end down's annular lateral wall is at the high-speed rotatory during operation of working head subassembly, and the resistance is little, and the grass is difficult for gluing on the lateral wall, and the metalwork is durable wear-resisting, and the blade disc matching effect is better.

Further, the outer shell is connected with a protection disc used for protecting the cutter disc from being exposed, the protection disc is of an arc-surface structure, and the concave arc surface of the protection disc faces the cutter disc and is arranged. The installation of protection dish prevents that hand-held type lawn mower from hindering operating personnel by accident at the during operation, protects the blade disc position.

Furthermore, a cutter head gasket made of soft materials is arranged between the fixing bolt and the cutter head.

Furthermore, a plurality of knife wall notches are arranged on two sides of the blade, and a periodic fluctuation structure is formed by two adjacent knife wall notches. The notch of the knife wall of the periodic fluctuation structure has definite force transfer, and the stability of the blade during cutting is ensured, and the knife is high in strength and not easy to damage.

Furthermore, a small clamping convex part used for limiting the position of the fixed disc is further arranged on the top surface, and a positioning hole corresponding to the small clamping convex part is formed in the fixed disc. The double-limiting of the small clamping convex part and the outer clamping convex part ensures that the relative position of the blade does not deviate.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a perspective view of a working head assembly of a handheld mower of the present invention;

fig. 2 is a schematic structural view of a working head assembly of the handheld mower of the present invention;

fig. 3 is a schematic structural diagram (1) of a wear-resistant assembly in a working head assembly of a handheld mower according to the present invention;

fig. 4 is a schematic structural diagram (2) of a wear-resistant assembly in a working head assembly of the handheld mower of the present invention.

In the figure, 1-outer housing; 2-cutter head; 3-cutter head gasket; 4-fixing the bolt; 5-a transmission shaft; 6-protecting the disc; 7-a knife wall gap; 8-bulge; 9-a clamping convex part; 10-a motor; 11-a wear assembly; 12-a side wall; 13-a central hole; 14-small clamping convex parts; 15-top surface.

Detailed Description

The following describes the present invention with reference to the accompanying drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features related to the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

Referring to the perspective view and the structure schematic diagram of the working head assembly of a hand-held mower shown in fig. 1 and fig. 2, a working head assembly of a hand-held mower, including shell body 1, place in the motor 10 of shell body 1, the transmission shaft 5 that links to each other with motor 10 and with the blade disc 2 that transmission shaft 5 links to each other, blade disc 2 including middle fixed disc and with two blades that fixed disc links to each other, 5 one end of transmission shaft with motor 10 links to each other, and the relative other end runs through wear-resisting component 11 and is fixed with blade disc 2 through fixing bolt 4, shell body 1 is connected with and is used for protecting blade disc 2 exposed shield 6, and shield 6 is cambered surface structure, and the cambered surface of shield 6 indent sets up towards blade disc 2 installation. The protection disc 6 is arranged to prevent the handheld mower from accidentally injuring operators when in work, and protects and limits the position of the cutter disc 2. And a cutter head gasket 3 made of soft materials is arranged between the fixing bolt 4 and the cutter head 2. A plurality of knife wall notches 7 are arranged on two sides of the blade, and a periodic fluctuation structure is formed by the two adjacent knife wall notches 7. The knife wall gap 7 of the periodic fluctuation structure has definite force transfer, so that the stability of the blade during cutting is ensured, and the cutter head 2 is high in strength and not easy to damage.

Referring to fig. 3 and 4, a structural schematic diagram (1) and a structural schematic diagram (2) of a wear-resistant assembly in a working head assembly of a handheld mower are shown, the wear-resistant assembly 11 is a metal member and comprises an annular side wall 12 and a top surface 15 which are integrally formed, the diameter of one end, close to the top surface 15, of the annular side wall 12 is smaller than that of one end, away from the top surface 15, of the annular side wall 12, and a central hole 13 for mounting a transmission shaft 5 and a clamping convex part 9 for limiting the position of a fixed disc are arranged on the top surface 15. The fixed disc is provided with the arch 8 that corresponds with screens evagination 9, and wear-resisting subassembly 11 includes annular lateral wall 12 and top surface 15 for the metalwork, and big end down's annular lateral wall 12 is when the high-speed rotatory work of working head subassembly, and the resistance is little, and the grass is difficult for gluing on lateral wall 12, and the metalwork is durable wear-resisting, and it is better with blade disc 2 matching effect. The top surface 15 is further provided with a small clamping convex part 14 for limiting the position of the fixed disc, and the fixed disc is provided with a positioning hole corresponding to the small clamping convex part 14. The small clamping convex pieces 14 and the outer clamping convex pieces 9 are limited doubly, so that the relative position of the cutter head 2 is not deviated.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in the embodiments without departing from the principles and spirit of the invention, and the scope of the invention is to be accorded the full scope of the claims.

Claims

1. The utility model provides a working head subassembly of hand-held type lawn mower, places in including the shell body the motor of shell body, the transmission shaft that links to each other with the motor and with the blade disc that the transmission shaft links to each other, its characterized in that: the blade disc including middle fixed disc and with two blades that fixed disc links to each other, transmission shaft one end with the motor links to each other, and the relative other end runs through wear-resisting subassembly and passes through fixing bolt and the blade disc is fixed, wear-resisting subassembly is the metalwork, including integrated into one piece's annular lateral wall and top surface, the annular the lateral wall is close to the diameter of top surface one end is less than the annular the lateral wall deviates from the diameter of top surface one end, be provided with the screens evagination piece that is used for installing the central hole of transmission shaft and is used for restricting fixed disc position on the top surface.

2. The workhead assembly of a handheld lawnmower as claimed in claim 1, wherein: the outer shell is connected with a protection disc used for protecting the cutter disc from being exposed, the protection disc is of an arc surface structure, and the concave arc surface of the protection disc faces the cutter disc and is arranged.

3. A working head assembly for a handheld lawnmower according to claim 1 or claim 2, wherein: and a cutter head gasket made of soft materials is arranged between the fixing bolt and the cutter head.

4. The workhead assembly of a handheld lawnmower as claimed in claim 1, wherein: a plurality of knife wall notches are arranged on two sides of the blade, and a periodic fluctuation structure is formed by two adjacent knife wall notches.

5. The workhead assembly of a handheld lawnmower as claimed in claim 1, wherein: the top surface is also provided with a small clamping convex part for limiting the position of the fixed disc, and the fixed disc is provided with a positioning hole corresponding to the small clamping convex part.