CN207252233U - A kind of handrail height adjusting mechanism for grass trimmer - Google Patents
A kind of handrail height adjusting mechanism for grass trimmer Download PDFInfo
- Publication number
- CN207252233U CN207252233U CN201721201433.9U CN201721201433U CN207252233U CN 207252233 U CN207252233 U CN 207252233U CN 201721201433 U CN201721201433 U CN 201721201433U CN 207252233 U CN207252233 U CN 207252233U
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- CN
- China
- Prior art keywords
- connecting chainring
- handrail
- chainring
- adjusting mechanism
- height adjusting
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Classifications
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D34/00—Mowers; Mowing apparatus of harvesters
- A01D34/01—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus
- A01D34/412—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters
- A01D34/63—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis
- A01D34/82—Other details
- A01D34/824—Handle arrangements
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- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Catching Or Destruction (AREA)
Abstract
The utility model discloses a kind of handrail height adjusting mechanism for grass trimmer, including upper handrail, lower handrail, further include the first connecting chainring, the second connecting chainring, locking device, first connecting chainring is arranged at handrail lower end inside, second connecting chainring is arranged on the outside of lower handrail upper end, and the first connecting chainring is horizontally through the first connecting chainring, the second connecting chainring with the second connecting chainring intermeshing locking device and the first connecting chainring, the second connecting chainring are locked or unlocked.The utility model sets the first connecting chainring, the second connecting chainring respectively on upper handrail, lower handrail, pass through the mutual adjusting for rotating and engaging the upper height between handrail, lower handrail of realization of the first connecting chainring, the second connecting chainring, so that the height of upper handrail, lower handrail can be according to the different Discussing Conveniences for carrying out height adjusting using situation, improving handrail operation.
Description
Technical field
It the utility model is related to armrest adjustment mechanism, more particularly to a kind of handrail height adjusting mechanism for grass trimmer.
Background technology
Grass trimmer using when need operating personnel to be held by handrail the direction of motion of grass trimmer is adjusted, and existing cut
The height of careless machine handrail is uncontrollable, and the operating personnel of different heights also differ the fitness of mower handrail height
Sample, the use to operating personnel brings inconvenience, while the difference of physical features height can also make operating personnel to mower handrail height
The demand of degree changes.Therefore at present on grass trimmer level altitude handrail to the use of operating personnel bring it is various not
Just, it would be highly desirable to which this is improved.
The content of the invention
The utility model exists for the highly unadjustable caused operating personnel of mower handrail existing in the prior art
Can not be according to itself height, the height of the high high adjustment mower handrail of physical features, so as to give user using mowing during use
Machine brings various inconvenience.
In order to solve the above-mentioned technical problem, the utility model is achieved through the following technical solutions：
A kind of handrail height adjusting mechanism for grass trimmer, including upper handrail, lower handrail, further include the first tooth connection
Disk, the second connecting chainring, locking device, first connecting chainring are arranged at the upper handrail lower end inside, and described second connects
Connect fluted disc to be arranged on the outside of the lower handrail upper end, first connecting chainring is intermeshed with the second connecting chainring, the lock
Tight device lateral through first connecting chainring, the second connecting chainring and locks the first connecting chainring, the second connecting chainring
Or unlock.
First connecting chainring is used to be intermeshed with the second connecting chainring, passes through the first connecting chainring and the second connecting chainring
The rotation of position adjusts upper height between handrail and lower handrail, and locking device is used for the first connecting chainring of connection and is connected with second
Fluted disc, and the first connecting chainring and the second connecting chainring are locked after the completion of handrail height adjusting, wherein the first connecting chainring is set
The effect being arranged on the outside of lower handrail upper end in upper handrail lower end inside and the second connecting chainring is put to be to make handrail, lower handrail
With the first connecting chainring, the second connecting chainring rotation and rotate, so as to play the upper height between handrail, lower handrail of adjusting
Effect, easily facilitate manipulation of the user to handrail.The utility model sets the first connection respectively on upper handrail, lower handrail
Fluted disc, the second connecting chainring, by the first connecting chainring, the second connecting chainring it is mutual rotate and engagement realize upper handrail, under
The adjusting of height between handrail, so that the height of upper handrail, lower handrail can carry out height tune according to different using situation
Section, improves the Discussing Convenience of handrail operation.
Preferably, a kind of handrail height adjusting mechanism for grass trimmer described above, first connecting chainring
On be additionally provided with limiting card groove portion, the limiting card being used cooperatively with the limiting card groove portion is provided with second connecting chainring
Conjunction portion, the spacing engaging portion is located in limiting card groove portion and limits the first connecting chainring by limiting card groove portion to be connected with second
Rotational angle between fluted disc.
By above structure, the adjusting of height between upper handrail, lower handrail can be set out multiple amplitudes of accommodation, favorably
The height of upper handrail, lower handrail is adjusted in user, while can be avoided between handrail, lower handrail again
Highly adjusting too influences subsequent operation.
Preferably, a kind of handrail height adjusting mechanism for grass trimmer described above, the spacing holding section are
Positive stop lug boss.
Positive stop lug boss can be closely connected in the second connecting chainring, while in the first connecting chainring and the second tooth connection
Rotated between disk when completing, what positive stop lug boss can more be stablized be limited card slot portion it is spacing, so as to ensure that spacing steady
It is qualitative.
Preferably, a kind of handrail height adjusting mechanism for grass trimmer described above, the limiting card groove portion with
The quantity of spacing holding section is 2 and is symmetrically arranged in the first connecting chainring, the second connecting chainring.
The quantity of limiting card groove portion and spacing holding section is arranged to symmetrical two, the first connection can be further improved
Stability when fluted disc is connected and rotates with the second connecting chainring, ensures that both turn in setting all the time in rotation process
In dynamic amplitude.
Preferably, a kind of handrail height adjusting mechanism for grass trimmer described above, the limiting card groove portion bag
Limit rib one, limit rib two are included, at least three grades are limited in the first connecting chainring between the limit rib one, limit rib two
Position tooth, the spacing engaging portion is between the limit rib one, limit rib two.
Limit rib one is set out in limiting card groove portion, the effect of limit rib two is that the rotation for limiting spacing holding section is empty
Between, prevent that spacing holding section from removing the setting scope of gear teeth, so as to be more advantageous to carrying out essence to the height of upper handrail, lower handrail
True adjustment control, the effect of gear teeth is to limit multiple upper handrails, the amplitude of accommodation of lower handrail height, so that in user
When height between upper handrail, lower handrail is adjusted, the selection space of user's bigger is given.
Preferably, a kind of handrail height adjusting mechanism for grass trimmer described above, first connecting chainring
Gear teeth corresponding position is being provided with the gear location division identical with gear teeth quantity, the second connecting chainring edge on edge
On spacing holding section corresponding position is being provided with gear prompting part, the gear prompting part is corresponding with gear location division.
The effect of gear location division is the position for going out gear teeth with the position instruction of gear location division, gear prompting part energy
Enough indicate the position of spacing holding section, pass through the mutual cooperation of gear location division and gear prompting part so that user can
Spacing holding section is caught in specific gear teeth by the position for observing gear location division and gear prompting part, is more advantageous to making
The position of spacing holding section and gear teeth is identified in user, so as to accurately be adjusted to the height of upper handrail, lower handrail
Section.
Preferably, a kind of handrail height adjusting mechanism for grass trimmer described above, the locking device include
Connector, knob, the knob are located on the inside of lower handrail upper end, and the connector lower end connects through the first connecting chainring, second
Connect fluted disc and mutually screwed with knob, the connector upper end is exposed outside the first connecting chainring.
Connector is used for through the first connecting chainring, the second connecting chainring and by the first connecting chainring, the second connecting chainring
Link together, knob is used for the end for being tightened in connector, and the first connection is realized by connector and being used cooperatively for knob
The connection of fluted disc and the second connecting chainring.
Preferably, a kind of handrail height adjusting mechanism for grass trimmer described above, further includes quick-release handle, institute
State quick-release handle to be hinged with connector upper end, the quick-release handle with connector upper end by relatively rotating the first tooth connection
Disk, the locking of the second connecting chainring or unlock.
Quick-release handle be articulated with connector upper end effect be by the rotation of quick-release handle by the first connecting chainring with
Second connecting chainring quick locking or unlock, so as to fulfill the relative rotation and rotation of the first connecting chainring, the second connecting chainring
After the completion of tightly engage.
Brief description of the drawings
Fig. 1 is the structure diagram of the utility model；
Fig. 2 is the structure diagram of the first connecting chainring of the utility model；
Fig. 3 is the structure diagram of the second connecting chainring of the utility model；
Fig. 4 is the explosive view of the utility model.
Embodiment
1-4 and embodiment are described in further detail the utility model below in conjunction with the accompanying drawings, but they are not
Limitation to the utility model：
Embodiment 1
A kind of handrail height adjusting mechanism for grass trimmer, including upper handrail 1, lower handrail 6, further include the first tooth connection
Disk 2, the second connecting chainring 5, locking device 4, first connecting chainring 2 are arranged at 1 lower end inside of upper handrail, and described
Two connecting chainrings 5 are arranged on the outside of 6 upper end of lower handrail, and first connecting chainring 2 is mutually nibbled with the second connecting chainring 5
Close, the locking device 4 is horizontally through first connecting chainring 2, the second connecting chainring 5 and by the first connecting chainring 2, second
Connecting chainring 5 is locked or unlocked.
In use, opening locking device 4, make no longer to lock between handrail 1, lower handrail 6, handrail 1 makes to help in rotation
First connecting chainring 2 of 1 lower end inside of hand is relatively rotated with the second connecting chainring 5 on lower handrail 6, observes the first connecting chainring
2 and second connecting chainring 5 rotation situation, when between upper handrail 1 and lower handrail 6 height adjust to suitable position after, will
Locking device 4 is transformed into locking state so that makes to be locked and can not relatively rotate again between handrail 1, lower handrail 6, from
And realize the adjusting of upper height between handrail 1 and lower handrail 6.
Preferably, limiting card groove portion 23 is additionally provided with first connecting chainring 2, in second connecting chainring 5
The spacing holding section 52 being used cooperatively with the limiting card groove portion 23 is provided with, the spacing holding section 52 is located at limiting card groove portion
The rotational angle between the first connecting chainring 2 and the second connecting chainring 5 is limited in 23 and by limiting card groove portion 23.
Preferably, the spacing holding section 52 is positive stop lug boss.
Preferably, the quantity of the limiting card groove portion 23 and spacing holding section 52 is 2 and is symmetrically arranged in the
In one connecting chainring 2, the second connecting chainring 5.
Preferably, the limiting card groove portion 23 includes limit rib 1, limit rib 2 25, the limit rib 1, limit
At least three gear teeths 22 are limited between the muscle 2 25 of position in the first connecting chainring 2, the spacing holding section 52 is positioned at described
Between limit rib 1, limit rib 2 25.
Preferably, counted on 2 edge of the first connecting chainring with gear teeth 22 being provided with 22 corresponding position of gear teeth
Identical gear location division 21 is measured, spacing 52 corresponding position of holding section is being provided with gear on 5 edge of the second connecting chainring
Prompting part 51, the gear prompting part 51 are corresponding with gear location division 21.
In use, user is by observing the position of gear location division 21, gear prompting part 51, can be according to different height
Spacing holding section 52 is caught in corresponding gear teeth 22 by degree regulatory demand exactly, then the first connecting chainring 2, second is connected
Fluted disc 5 is locked, so as to easily and accurately complete the adjusting of upper height between handrail 1, lower handrail 6.
Preferably, the locking device 4 includes connector 42, knob 41, the knob 41 is located in lower 6 upper end of handrail
Side, 42 lower end of connector is through the first connecting chainring 2, the second connecting chainring 5 and is screwed with 41 phase of knob, the connector
Expose outside the first connecting chainring 2 42 upper ends.
Preferably, further including quick-release handle 3, the quick-release handle 3 is hinged with 42 upper end of connector, the Quick Release hand
First connecting chainring 2, the second connecting chainring 5 are locked or unlocked by being relatively rotated with 42 upper end of connector by handle 3.
Specifically, when needing to adjust the height of handrail 1, quick-release handle 3 is turned out, at this time connector 42 and rotation
Button 41 no longer locks the first connecting chainring 2, the second connecting chainring 5, and then rotating upper handrail 1 makes the of 1 lower end inside of handrail
One connecting chainring 2 is relatively rotated with the second connecting chainring 5 on lower handrail 6, in upper 1 rotation process of handrail, the first tooth connection
The rotational angle of disk 2 is limited card slot portion 23 and spacing holding section 52 and is limited so that the first connecting chainring 2 can only be spacing
Switching is rotated between the gear teeth 22 limited between muscle 1, limit rib 2 25, gear teeth 22 can be arranged as required to out
Three gears, or four, five gears are set, so that convenient for users to highly fine-tuning.During adjusting,
By the mutual cooperation of gear location division 21 and gear prompting part 51 user can be allowed quickly and easily to judge to help at present
Hand 1 is in the gear teeth 22 in which shelves.After the height of upper handrail 1 is adjusted, by the inside rotation of quick-release handle 3 and again
The first connecting chainring 2 of secondary locking, the second connecting chainring 5, tightly engage between the first connecting chainring 2, the second connecting chainring 5 at this time
And can not rotate, so as to complete the height adjustment operation of handrail 1.
In short, the above is only the preferred embodiment of the present invention, all scopes according to present utility model application patent
The equivalent changes and modifications made, should all belong to the covering scope of the utility model.
Claims (8)
1. a kind of handrail height adjusting mechanism for grass trimmer, including upper handrail（1）, lower handrail（6）, it is characterised in that：Also
Including the first connecting chainring（2）, the second connecting chainring（5）, locking device（4）, first connecting chainring（2）It is arranged at described
Upper handrail（1）Lower end inside, second connecting chainring（5）It is arranged at the lower handrail（6）On the outside of upper end, first connection
Fluted disc（2）With the second connecting chainring（5）Intermeshing, the locking device（4）It is horizontally through first connecting chainring（2）、
Second connecting chainring（5）And by the first connecting chainring（2）, the second connecting chainring（5）Locking or unlock.
A kind of 2. handrail height adjusting mechanism for grass trimmer according to claim 1, it is characterised in that：Described first
Connecting chainring（2）On be additionally provided with limiting card groove portion（23）, second connecting chainring（5）On be provided with and the limit card slot
Portion（23）The spacing holding section being used cooperatively（52）, the spacing holding section（52）Positioned at limiting card groove portion（23）It is interior and pass through limit
Position card slot portion（23）Limit the first connecting chainring（2）With the second connecting chainring（5）Between rotational angle.
A kind of 3. handrail height adjusting mechanism for grass trimmer according to claim 2, it is characterised in that：It is described spacing
Holding section（52）For positive stop lug boss.
A kind of 4. handrail height adjusting mechanism for grass trimmer according to claim 2, it is characterised in that：It is described spacing
Card slot portion（23）With spacing holding section（52）Quantity 2 and to be symmetrically arranged in the first connecting chainring（2）, second connection
Fluted disc（5）On.
A kind of 5. handrail height adjusting mechanism for grass trimmer according to claim 2, it is characterised in that：It is described spacing
Card slot portion（23）Including limit rib one（24）, limit rib two（25）, the limit rib one（24）, limit rib two（25）Between
One connecting chainring（2）On limit at least three gear teeths（22）, the spacing holding section（52）Positioned at the limit rib one
（24）, limit rib two（25）Between.
A kind of 6. handrail height adjusting mechanism for grass trimmer according to claim 5, it is characterised in that：Described first
Connecting chainring（2）On edge with gear teeth（22）Corresponding position is provided with and gear teeth（22）The identical gear location division of quantity
（21）, second connecting chainring（5）On edge with spacing holding section（52）Corresponding position is provided with gear prompting part（51）, institute
State gear prompting part（51）With gear location division（21）It is corresponding.
A kind of 7. handrail height adjusting mechanism for grass trimmer according to claim 1, it is characterised in that：The locking
Device（4）Including connector（42）, knob（41）, the knob（41）Positioned at lower handrail（6）On the inside of upper end, the connector
（42）Lower end passes through the first connecting chainring（2）, the second connecting chainring（5）And and knob（41）Mutually screw, the connector（42）
Expose the first connecting chainring in upper end（2）Outside.
A kind of 8. handrail height adjusting mechanism for grass trimmer according to claim 7, it is characterised in that：Further include fast
Tear handle open（3）, the quick-release handle（3）With connector（42）Upper end is hinged, the quick-release handle（3）By with connector
（42）Upper end is relatively rotated the first connecting chainring（2）, the second connecting chainring（5）Locking or unlock.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721201433.9U CN207252233U (en) | 2017-09-19 | 2017-09-19 | A kind of handrail height adjusting mechanism for grass trimmer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721201433.9U CN207252233U (en) | 2017-09-19 | 2017-09-19 | A kind of handrail height adjusting mechanism for grass trimmer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207252233U true CN207252233U (en) | 2018-04-20 |
Family
ID=61921408
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721201433.9U Active CN207252233U (en) | 2017-09-19 | 2017-09-19 | A kind of handrail height adjusting mechanism for grass trimmer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207252233U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021113306A1 (en) * | 2019-12-02 | 2021-06-10 | Mtd Products Inc | Adjustable handle assembly for a walk-behind mower |
| WO2021232954A1 (en) * | 2020-05-21 | 2021-11-25 | 炬星科技（深圳）有限公司 | Handrail and robot comprising said handrail |
-
2017
- 2017-09-19 CN CN201721201433.9U patent/CN207252233U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021113306A1 (en) * | 2019-12-02 | 2021-06-10 | Mtd Products Inc | Adjustable handle assembly for a walk-behind mower |
| US11707018B2 (en) | 2019-12-02 | 2023-07-25 | Mtd Products Inc | Adjustable handle assembly for a walk-behind mower |
| WO2021232954A1 (en) * | 2020-05-21 | 2021-11-25 | 炬星科技（深圳）有限公司 | Handrail and robot comprising said handrail |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |