CN201633001U

CN201633001U - Rotating structure of garden tool handle

Info

Publication number: CN201633001U
Application number: CN201020149844XU
Authority: CN
Inventors: 韩焕忠
Original assignee: Zhejiang YAT Electrical Appliance Co Ltd
Current assignee: Zhejiang YAT Electrical Appliance Co Ltd
Priority date: 2010-03-30
Filing date: 2010-03-30
Publication date: 2010-11-17
Anticipated expiration: 2020-03-30

Abstract

The utility model discloses a rotating structure of a garden tool handle, which comprises a machine rod and a handle assembly, wherein the handle assembly is sheathed and connected on the top of the machine rod and can rotate around the axial lead of the machine rod, a first gear ring is arranged on the machine rod, a second gear ring correspondingly engaged with the first gear ring is arranged in a case of the handle assembly for limiting the rotation of the handle assembly, and an elastic reset mechanism used for elastically tensioning and engaging the first gear ring and the second gear ring is also arranged between the case of the handle assembly and the machine rod. The rotating structure of the handle provided by the utility model can realize the convenient and fast rotation of the handle, and in addition, the handle can be fixed after the rotation, so a garden tool can have good stability when working in different function states. The utility model also has the advantages of compact structure, small vibration, low noise, comfortable holding and the like.

Description

A kind of rotational structure of garden instrument handle

Technical field

The utility model relates to the garden instrument field, refers to a kind of rotational structure that is used on the garden instrument handles such as grass-mowing machine, trimmer especially.

Background technology

The handle that is installed at present on the garden instrument has been improved to rotary, rotary type or telescopic mostly, with regard to with regard to rotary, be in order to allow the gardener can hold handle with oneself habitual posture when the tool using, allow single instrument can adapt to different operating personnel's use habit, improve the gardens operating efficiency with this, reduce labour intensity.But the shortcoming that can not locate after the existing rotary handle ubiquity rotation, because handle can not get fixing, relative deflection will take place with respect to the handle holding part in the working head of garden instrument, though the angle of rotating can be very not big, but be enough to have influence on the quality of gardens operation, also do not have suitable structure in the prior art and solve this technical problem.

Summary of the invention

Problem to be solved in the utility model just provides a kind of rotational structure of garden instrument handle, can also make handle obtain relative fixed after rotation when realizing the convenient, fast rotation of handle, makes the duty of garden instrument more stable.

For reaching above-mentioned purpose, the utility model adopts following technical scheme: a kind of rotational structure of garden instrument handle, comprise that machine bar and the active machine masthead portion that is socketed in also can be around the handle assemblies of machine bar axial line rotation, it is characterized in that: described machine bar is provided with gear ring I, the rotation that limits handle assembly with the gear ring II of the corresponding engagement of described gear ring I is set in the housing of handle assembly, also is provided with flexible restoring organ between the housing of described handle assembly and machine bar gear ring I and gear ring II elasticity tension engagement.

Further, described gear ring I and gear ring II together are installed on machine masthead portion, and described gear ring I and machine bar are affixed, and the housing of described gear ring II and handle assembly is affixed.Under gear ring I and gear ring II engagement, the upper surface of gear ring II is stretched out in the upper surface of machine bar.

Further, described flexible restoring organ is the return spring that is installed on the machine bar of gear ring I below, the bottom elasticity of described return spring is crimped on the housing of handle assembly and makes handle assembly and machine bar be in the elasticity tension, the corresponding engagement that is in gear ring II of described gear ring I.

Further, described machine masthead portion is provided with first shock-damping structure.

Further, described first shock-damping structure is the annular gap of reserving between the internal ring wall of gear ring I and gear ring II and machine bar outer wall.

Further, also be provided with second shock-damping structure in the housing of described handle assembly.

Further, described second shock-damping structure comprise along machine bar axial distribution in the handle assembly housing at least two annular grooves and be inlaid in elastic collar in the annular groove, described elastic collar has part to expose annular groove and closely be looped around on the machine bar outer wall.

Further, described annular groove is two and is located at handle assembly housing bottom opening part and machine masthead portion corresponding position respectively that the bottom elasticity of described return spring is crimped on to be located on the inwardly protruded step surface of opening part.

The vibrations that produce during tool operation can be passed on handle and the gear ring by the machine bar, this vibrations not only can influence the job stability of tool interior part, also make the operator hold handle the time do not feel well, the utility model combines the vibrations that can effectively weaken the machine bar by first shock-damping structure with second shock-damping structure, that tool work is stablized, held is comfortable, noise is little.

Further, also be provided with the position limiting structure that prevents that the machine bar from excessively rotating between the housing of described handle assembly and the machine bar.

Further, described position limiting structure comprises several protruding stuck points that are periphery in the handle assembly housing and is located at fixture block on the gear ring I outer wall, described fixture block gear ring I at random during bar pulling rotation with the be fastened rotation of restriction machine bar of corresponding protruding stuck point.

The beneficial effects of the utility model: handle rotational structure provided by the utility model can be realized the convenient, fast rotation of handle, and handle can obtain relative fixed after rotation, all have good stable when garden instrument is worked under the difference in functionality state, simultaneously the utility model possesses also that structure is little through gathering, shaking, noise is low, hold advantages such as comfortable.

Description of drawings

Below in conjunction with accompanying drawing the utility model is further described:

Fig. 1 is the syndeton schematic diagram of the utility model machine bar and handle assembly;

Fig. 2 is the enlarged drawing at A place among Fig. 1;

Fig. 3 is the schematic diagram of the utility model position limiting structure.

The specific embodiment

As Fig. 1, Fig. 2, shown in Figure 3, the utility model is a kind of rotational structure of garden instrument handle, comprise that machine bar 2 and active machine bar 2 tops that are socketed in also can be around the handle assemblies 1 of machine bar 2 axial lines rotation, described machine bar 2 is provided with gear ring I 21, the rotation that limits handle assemblies 1 with the gear ring II 12 of described gear ring I 21 corresponding engagements is set in the housing 11 of

handle assembly

1, and 2 on the housing 11 of described handle assembly 1 and machine bar also are provided with the flexible restoring organ with gear ring II 12 elasticity tension engagement with gear ring I 21.

As preferred structure: gear ring I 21 and gear ring II 12 together are installed on machine bar 2 tops, described gear ring I21 and machine bar 2 are affixed, described gear ring II 12 is affixed with the housing 11 of handle assembly 1, under gear ring I 21 and gear ring II 12 engagements, the upper surface of gear ring II 12 is stretched out in the upper surface of machine bar 2; Flexible restoring organ is the return spring 3 that is installed on the gear ring I 21 below machine bars 2, the bottom elasticity of described return spring 3 is crimped on and makes handle assembly 1 and machine bar 2 be in the elasticity tension, described gear ring I 21 and the gear ring II 12 corresponding engagements that are on the housing of handle assembly.Machine bar 2 tops are provided with first shock-damping structure, be provided with second shock-damping structure in the housing 11 of handle assembly 1, wherein first shock-damping structure is the annular gap of reserving between the internal ring wall of gear ring I 21 and gear ring II 12 and machine bar 2 outer walls 5, second shock-damping structure comprises along machine bar 2 axial distribution in handle assembly at least two annular grooves in 1 housing 11 and is inlaid in elastic collar 4 in the annular groove, and described elastic collar 4 has part to expose annular groove and closely be looped around on machine bar 2 outer walls; In the present embodiment, annular groove quantity is two and is located at handle assembly housing 11 bottom opening places 14 and corresponding position, machine bar 2 top 13 respectively that the bottom elasticity of described return bullet 3 springs is crimped on to be located on the opening part 14 inwardly protruded step surfaces 141; The vibrations that produce during because of tool operation can be passed on handle and the gear ring by machine bar 2, this vibrations not only can influence the job stability of tool interior part, do not feel well when making the operator hold handle yet, first shock-damping structure combines the vibrations that can effectively weaken machine bar 2 with second shock-damping structure, reduce noise, use first shock-damping structure or second shock-damping structure also can certainly separately.Also be provided with between the housing 11 of handle assembly and the machine bar 2 and prevent the excessively position limiting structures of rotation of machine bar 2, can prevent excessively rotation and cause connecting line torsional deformation in the machine bar 2 of machine bar 2; Described position limiting structure comprises several protruding stuck points 15 that are periphery in the handle assembly housing and is located at fixture block 211 on the gear ring I outer wall, described fixture block 211 gear ring I at random during bar pulling rotation with the be fastened rotation of restriction machine bar of corresponding protruding stuck point; Upward total number of teeth in engagement is corresponding with gear ring I for the quantity of projection stuck point, and the machine bar is when resetting, and gear ring I 21 and gear ring II 12 can mesh fast.

When using handle, pull down motivation bar 2, gear ring I 21 and gear ring II 12 break away from, whirler bar 2 (being equal to the handle rotation), the angle of rotation is decided according to the needs of user's operating habit and instrumental function conversion, as instrument beat the grass, the conversion of trimming function; Unclamp after machine bar 2 machines go to correspondence position, machine bar 2 is resetted, gear ring I 21 rotates with the restriction of gear ring II 12 mating engagement again.Engaging tooth on gear ring I 21 and the gear ring II 12 can be distributed on the field of conjugate action of gear ring by the equal angular spacer ring, and the rotation of handle just can obtain the control of a linearity like this, is more suitable for operation.

Claims

1. the rotational structure of a garden instrument handle, comprise that machine bar (2) and active machine bar (2) top that is socketed in also can be around the handle assemblies (1) of machine bar (2) axial line rotation, it is characterized in that: described machine bar (2) is provided with gear ring I (21), the rotation that limits handle assembly (1) with the gear ring II (12) of the corresponding engagement of described gear ring I (21) is set in the housing of handle assembly (1), also is provided with the flexible restoring organ with gear ring II (12) elasticity tension engagement between the housing (11) of described handle assembly (1) and machine bar (2) gear ring I (21).

2. the rotational structure of a kind of garden instrument handle according to claim 1, it is characterized in that: described gear ring I (21) and gear ring II (12) together are installed on machine bar (2) top, described gear ring I (21) is affixed with machine bar (2), and described gear ring II (12) is affixed with the housing (11) of handle assembly (1).

3. the rotational structure of a kind of garden instrument handle according to claim 2, it is characterized in that: described flexible restoring organ is for being installed on the return spring (3) on the machine bar (2) below the gear ring I (21), the bottom elasticity of described return spring (3) is crimped on and makes handle assembly (1) and machine bar (2) be in the elasticity tension, described gear ring I (21) and the corresponding engagement that is in of gear ring II (12) on the housing (11) of handle assembly.

4. the rotational structure of a kind of garden instrument handle according to claim 3 is characterized in that: described machine bar (2) top is provided with first shock-damping structure.

5. the rotational structure of a kind of garden instrument handle according to claim 4 is characterized in that: described first shock-damping structure is the annular gap of reserving between the internal ring wall of gear ring I (21) and gear ring II (12) and machine bar (2) outer wall (5).

6. the rotational structure of a kind of garden instrument handle according to claim 5 is characterized in that: also be provided with second shock-damping structure in the housing (11) of described handle assembly (1).

7. the rotational structure of a kind of garden instrument handle according to claim 6, it is characterized in that: described second shock-damping structure comprise along machine bar (2) axial distribution in handle assembly (1) housing (11) at least two annular grooves and be inlaid in elastic collar (4) in the annular groove, described elastic collar has part to expose annular groove and closely be looped around on machine bar (2) outer wall.

8. the rotational structure of a kind of garden instrument handle according to claim 7, it is characterized in that: described annular groove is two housing (11) bottom opening place (14) and machine bar (2) corresponding positions, top (13) of also being located at handle assembly respectively, and the bottom elasticity of described return spring (3) is crimped on to be located on the inwardly protruded step surface of opening part (14) (141).

9. according to the rotational structure of claim 3 or 4 or 6 described a kind of garden instrument handles, it is characterized in that: also be provided with between housing of described handle assembly (11) and the machine bar (2) and prevent the excessively position limiting structure of rotation of machine bar (2).

10. the rotational structure of a kind of garden instrument handle according to claim 9, it is characterized in that: described position limiting structure comprises several protruding stuck points (15) that are periphery in handle assembly housing (11) and is located at fixture block (211) on gear ring I (21) outer wall, described fixture block (211) gear ring I at random during bar (2) pulling rotation with the be fastened rotation of restriction machine bar (2) of corresponding protruding stuck point (15).