CN203590716U - Step-less telescopic push rod mechanism - Google Patents
Step-less telescopic push rod mechanism Download PDFInfo
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- CN203590716U CN203590716U CN201320384196.XU CN201320384196U CN203590716U CN 203590716 U CN203590716 U CN 203590716U CN 201320384196 U CN201320384196 U CN 201320384196U CN 203590716 U CN203590716 U CN 203590716U
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- rod
- push
- push rod
- cam
- bar mechanism
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Abstract
The utility model discloses a step-less telescopic pusher mechanism, which comprises an upper push rod and a lower rod that can extend relatively, and a locking device, wherein the locking device comprises a pressing rod and a rotatable cam; the upper push rod and the lower push rod can be extended mutually when the cam and the pressing rod are separated; the pressing rod and the upper push rod or the lower push rod are compressed to each other when the cam is matched with the pressing rod. Therefore, the height of the push rod can be adjusted freely and be locked tight easily within the range of the push rod length, and people of different height can use conveniently. Meanwhile, the push rod can be contracted and folded directly without dismounting when being stored or packaged. The step-less telescopic push rod mechanism in the utility model has creative structure, powerful functions and excellent practical use effects.
Description
Technical field
The present invention relates to a kind of stepless retractable transfer bar mechanism of garden tool set.
Background technology
In part garden instrument, such as mower, grass rake mechine, loosenning tiller etc. arrange transfer bar mechanism conventionally, and it is generally used for controlling opening or closing of the traffic direction of machine and machine etc.Transfer bar mechanism comprises can carry out upper and lower flexible upper push-rod and lower push-rod to meet different users's height requirement.And the simple old stuff of push rod stretching structure on existing market is that simple profit is screwed between upper and lower push rod.When needs regulate when height, the screw that need to first get loose, also wants hold-down screw after mixing up height, and this class action seems not convenient; And in the time of storage or packing, also need push rod to pull down.Comprehensive the problems referred to above, find present technical transfer bar mechanism, have brought numerous inconvenience to actual use.
Summary of the invention
The object of the invention is to for above-mentioned defect of the prior art, a kind of novel structure is provided, functional strong, the stepless retractable transfer bar mechanism that practical effect is good, it is any height the locking of regulating pushing rod easily, meanwhile, and in the time of storage or packing, push rod can be dismantled, and directly shrinks folding.
For achieving the above object, the present invention has adopted following technical scheme: a kind of stepless retractable transfer bar mechanism, comprise upper push-rod and lower push-rod and the locking device that can relatively stretch, it is characterized in that: described locking device comprises depression bar and rotatable cam, in the time that described cam and described depression bar are separated, described upper and lower push rod can stretch mutually; And when described cam and described depression bar are when matched, described depression bar and described upper push-rod or lower push-rod compress mutually.
In addition, the present invention also provides following attached technical scheme:
Described locking device also comprises knob, and described knob and cam are matched.
Described locking device also comprises upper cover and lower cover, and described knob is arranged on and covers, and described depression bar and described cam are housed between upper cover and lower cover.
The end of described lower cover arranges the locating dowel of hollow, and described upper and lower push rod can partly be housed in described locating dowel.
Described depression bar end arranges compressed part, and described compressed part is made and can mutually be compressed with described upper push-rod or lower push-rod by having flexible plastic material.
Described locking device also comprises limiting component, and described limiting component comprises the first locating part and second locating part that can mutually connect, and described first, second locating part is installed on respectively in described upper and lower push rod.
Described upper push-rod is contained in described lower push-rod together with described the first locating part.
Described the second locating part arranges opening, and described compressed part can and compress with described upper push-rod or lower push-rod mutually through described opening.
Described stepless retractable transfer bar mechanism is roughly the symmetrical structure in center.
Described stepless retractable transfer bar mechanism is applied to garden tool set, especially on mower.
Than prior art, advantage of the present invention is: transfer bar mechanism is provided with locking device, and it mainly comprises depression bar and rotatable cam, and when cam and depression bar are separated, upper and lower push rod can stretch mutually; And when cam and depression bar are when matched, described depression bar and described upper push-rod or lower push-rod compress mutually.So by rotating cam arbitrary height the locking of regulating pushing rod easily, meanwhile, in the time of storage or packing, push rod can be dismantled, and directly shrinks folding.
Accompanying drawing explanation
Fig. 1 is the parts exploded view corresponding to the stepless retractable transfer bar mechanism of preferred embodiment of the present invention.
Fig. 2 is the cutaway view after the transfer bar mechanism of Fig. 1 assembles.
Fig. 3 is the cutaway view of the transfer bar mechanism of Fig. 1 while being positioned at released state.
Fig. 4 is the cutaway view of the transfer bar mechanism of Fig. 1 while being positioned at locking state.
Embodiment
Below in conjunction with preferred embodiment and accompanying drawing thereof, technical solution of the present invention is further non-limitingly described in detail.
See figures.1.and.2, corresponding to the stepless retractable transfer bar mechanism parts exploded view of preferred embodiment of the present invention, it is mainly used in push-and-pull machine, and comprises upper push-rod 1 and the lower push-rod 5 that can relatively stretch and upper and lower push rod 1,5 can be carried out to the flexible also locking device 15 of locking positioning mutually.This transfer bar mechanism is roughly the symmetrical structure in center on the whole.
Particularly, locking device 15 mainly comprises a pair of depression bar 4, is arranged on upper cover 7 and the lower cover 10 of this cam 8, containing depression bar 4 and cam 8 to depression bar 4 centres and is arranged on upper cover 7 and the knob 6 matched with cam 8.Wherein, be provided with through hole 12 on upper cover 7, knob 6 is through through hole 12 and adopt screw connecting mode to be fixedly connected with cam 8.Lower cover 10 is provided with groove 34, bearing 33 and locating dowel 25 is set in end.Above-mentioned a pair of depression bar 4 is arranged in groove 34, and its end is stretched in locating dowel 25 from the side.And cam 8 global shape ovalizes, it is supported in bearing 33, and comprises pair of short edges 34 and a pair of long limit 35.Locating dowel 25 is hollow form, contains a part for upper push-rod 1 and lower push-rod 5.These two ends to depression bar 4 are respectively arranged with square compressed part 9, and its most preferred embodiment is to be made up of plastic material.
With further reference to Fig. 3 to Fig. 4, it is matched with upper push-rod 1 that compressed part 9 can be passed opening 28 on square hole 27 and second locating part 3 of locating dowel 25, lower push-rod 5 successively.Actual mechanical process is roughly as follows: rotate above-mentioned knob 6, the minor face 36 of cam 8 is rotated to depression bar 4 to be aligned and is separated from each other, now depression bar 4 is in free state, so and do not produce any thrust between upper push-rod 1, so upper push-rod 1 can stretch freely in lower push-rod 5, also this locking device 15 is positioned at released state; In the time being adjusted to correct position, rotation knob 6 nine ten degree angles, the long limit 35 of cam 8 can be pushed depression bar 4 and outwards moved, make compressed part 9 and upper push-rod 1 mutually compress and produce enough large frictional force, limit the relative flexible of upper push-rod 1 and lower push-rod 2, also this locking device 15 has returned to locking state.
Certainly, it is evident that, also can be arranged to lower push-rod 5 to be housed in upper push-rod 1, accordingly in the time of locking state, compressed part 9 also can limit the flexible of upper and lower push rod by compressing lower push-rod 5.
It is pointed out that above-mentioned preferred embodiment is only explanation technical conceive of the present invention and feature, its object is to allow person skilled in the art can understand content of the present invention and implement according to this, can not limit the scope of the invention with this.All equivalences that Spirit Essence is done according to the present invention change or modify, within all should being encompassed in protection scope of the present invention.
Claims (9)
1. a stepless retractable transfer bar mechanism, comprise upper push-rod and lower push-rod and the locking device that can relatively stretch, it is characterized in that: described locking device comprises depression bar and rotatable cam, in the time that described cam and described depression bar are separated, described upper and lower push rod can stretch mutually; And when described cam and described depression bar are when matched, described depression bar and described upper push-rod or lower push-rod compress mutually.
2. stepless retractable transfer bar mechanism according to claim 1, is characterized in that: described locking device also comprises knob, described knob and cam are matched.
3. stepless retractable transfer bar mechanism according to claim 2, is characterized in that: described locking device also comprises upper cover and lower cover, described knob is arranged on and covers, and described depression bar and described cam are housed between upper cover and lower cover.
4. stepless retractable transfer bar mechanism according to claim 3, is characterized in that: the end of described lower cover arranges the locating dowel of hollow, and described upper and lower push rod can partly be housed in described locating dowel.
5. stepless retractable transfer bar mechanism according to claim 1, is characterized in that: described depression bar end arranges compressed part, and described compressed part is made and can mutually be compressed with described upper push-rod or lower push-rod by having plastic material.
6. stepless retractable transfer bar mechanism according to claim 5, it is characterized in that: described locking device also comprises limiting component, described limiting component comprises the first locating part and second locating part that can mutually connect, and described first, second locating part is installed on respectively in described upper and lower push rod.
7. stepless retractable transfer bar mechanism according to claim 6, is characterized in that: described upper push-rod is contained in described lower push-rod together with described the first locating part.
8. stepless retractable transfer bar mechanism according to claim 6, is characterized in that: described the second locating part arranges opening, and described compressed part can and compress with described upper push-rod or lower push-rod mutually through described opening.
9. according to the stepless retractable transfer bar mechanism described in claim 1 to 8 any one, it is characterized in that it is roughly the symmetrical structure in center.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320384196.XU CN203590716U (en) | 2013-07-01 | 2013-07-01 | Step-less telescopic push rod mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320384196.XU CN203590716U (en) | 2013-07-01 | 2013-07-01 | Step-less telescopic push rod mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203590716U true CN203590716U (en) | 2014-05-14 |
Family
ID=50671678
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320384196.XU Withdrawn - After Issue CN203590716U (en) | 2013-07-01 | 2013-07-01 | Step-less telescopic push rod mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203590716U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103299756A (en) * | 2013-07-01 | 2013-09-18 | 天佑电器（苏州）有限公司 | Stepless telescopic push rod mechanism |
-
2013
- 2013-07-01 CN CN201320384196.XU patent/CN203590716U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103299756A (en) * | 2013-07-01 | 2013-09-18 | 天佑电器（苏州）有限公司 | Stepless telescopic push rod mechanism |
| CN103299756B (en) * | 2013-07-01 | 2016-02-03 | 天佑电器（苏州）有限公司 | Stepless retractable transfer bar mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140514 Effective date of abandoning: 20160203 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20140514 Effective date of abandoning: 20160203 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |