CN203387957U - Locked rotor prevention mechanism of garden tool - Google Patents
Locked rotor prevention mechanism of garden tool Download PDFInfo
- Publication number
- CN203387957U CN203387957U CN201320405045.8U CN201320405045U CN203387957U CN 203387957 U CN203387957 U CN 203387957U CN 201320405045 U CN201320405045 U CN 201320405045U CN 203387957 U CN203387957 U CN 203387957U
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- garden tool
- rotation mechanism
- blocking rotation
- tool set
- gear
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Abstract
The utility model discloses a locked rotor prevention mechanism of a garden tool. The garden tool comprises a motor assembly and a knife bar assembly, and the locked rotor prevention mechanism comprises a gear component which is driven by the motor assembly, an inner support sleeve which is fixedly mounted at the knife bar assembly and is connected with the gear component in a matching way and a buffering piece which is arranged between the gear component and the inner support sleeve. Therefore, when a locked rotor condition occurs on the garden tool, the gear component presses the buffering piece, severe deformation happens on the buffering piece, the kinetic energy of the gear component is converted into the potential energy, and the garden tool is effectively protected; the locked rotor prevention mechanism of the garden tool can be used under alternating current and direct current; the application range is wide; the structure is simple; the occupied space is small.
Description
Technical field
The utility model relates to a kind of blocking rotation mechanism of garden tool set.
Background technology
Part garden instrument in the market, such as shrub and hedge trimmer, all possess parts such as having motor, gear and tool section.Conventionally, such garden tool set arranges blocking rotation mechanism, easily causes the damage of the strength members such as tool section cutting teeth, gear and motor when preventing from cutting to the hard objects such as rod iron when machine.At present, on shrub and hedge trimmer, utilize the more stall mechanism of putting to mainly contain two kinds, the first is: electronics blocking rotation mechanism, mainly to utilize circuit to control, when stall occurs, when current of electric is excessive, circuit control system starts, make motor power-off, but this type of blocking rotation mechanism is mainly used in direct current shrub and hedge trimmer, shortcoming is that range of application is narrower.The second is: mechanical torsion spring blocking rotation mechanism, primary structure is in gear centre position, to stretch out an axle, this axle and gear are one-body molded, and torsion spring inserts this axle, and then matched with tool section assembly, utilize frictional force driving knife bar assembly, when stall occurs, between gear and torsion spring, skid, avoided gear stuck, but this type of blocking rotation mechanism structure is complicated, and the space taking is larger.Comprehensive above-mentioned Liang Zhong blocking rotation mechanism, finds that prior art Shang blocking rotation mechanism exists more problem, gives actual use and industry manufacture has been brought numerous inconvenience.
Utility model content
The purpose of this utility model is, for above-mentioned defect of the prior art, to provide a kind of applied range, the blocking rotation mechanism of the simple in structure and little garden tool set that takes up room.
For realizing above-mentioned utility model object, the utility model has adopted following technical scheme: a kind of blocking rotation mechanism of garden tool set, wherein garden tool set comprises electric machine assembly and tool section assembly, it is characterized in that: described blocking rotation mechanism comprises the geared parts that driven by electric machine assembly, be fixedly mounted on tool section assembly and and the matched interior support set of described geared parts and be arranged on geared parts and interior support set between bolster.
In addition, the utility model also provides following attached technical scheme:
Described geared parts comprises gear and fixes with described gear the outer support ring connecting.
Described inner support cover arranges convex shoulder, and described outer support ring arranges respective bump, and described bolster connects between convex shoulder and projection.
Described gear arranges through hole, and described outer support ring arranges boss, and described boss and described through hole are matched.
Described interior support set and described tool section assembly adopt rivet connected mode to be fixedly connected.
Described interior support set and described tool section assembly arrange through hole, in described through hole, bearing are set.
Described gear and described outer support ring can be one-body molded.
Described bolster is made by plastic material.
Described garden tool set is shrub and hedge trimmer.
Than prior art, advantage of the present utility model is: the blocking rotation mechanism of garden tool set comprises geared parts, interior support set and bolster, when there is stall phenomenon in garden tool set, geared parts compresses bolster, there is the deformation of large degree in bolster, by the kinetic transformation of geared parts, is potential energy.And the blocking rotation mechanism of this garden tool set can be used for alternating current and also can be used for direct current, have wide range of applications, the while is simple in structure and take up room little.
Accompanying drawing explanation
Fig. 1 is the part parts exploded view corresponding to the utility model preferred embodiment garden tool set.
Fig. 2 is the assembling plan view of Fig. 1.
Fig. 3 is the sectional arrangement drawing of Fig. 1.
Embodiment
Below in conjunction with preferred embodiment and accompanying drawing thereof, technical solutions of the utility model are further non-limitingly described in detail.
With reference to Fig. 1, corresponding to the garden tool set of the utility model preferred embodiment, be shrub and hedge trimmer, it mainly comprises electric machine assembly 7, tool section assembly 24 and anti-jamming mechanism.This anti-jamming mechanism comprises geared parts 8 that electric machine assembly 7 drives, be fixedly mounted on tool section assembly 24 and and the matched interior support set 15 of geared parts 8 and be arranged on geared parts 8 and interior support set 15 between bolster 14.
Particularly, tool section assembly 24 mainly comprise prune branch upper and lower blade 22, be arranged on eccentric wheel 25, spacer 26 and anti-attrition sheet 28 on each blade 22.Geared parts 8 comprises gear 3 and outer support ring 10, and wherein, gear 3 arranges the first through hole 27, and outer support ring 10 arranges boss 11, and boss 11 and the first through hole 27 are matched, and in most preferred embodiment, gear 3 adopts screw connecting mode to be fixedly connected with outer support ring 10.In addition, gear 3 also can be one-body molded with outer support ring 10.Interior support set 15 arranges a pair of depressed part 16 and a pair of convex shoulder 21.In most preferred embodiment, interior support set 15 is installed in the boss 11 of outer support ring 10.Meanwhile, through hole 19 is set respectively to be fixedly connected by rivet 17 on interior support set 15, eccentric wheel 25, spacer 26 and anti-attrition sheet 28.
With further reference to Fig. 2 to Fig. 3, gear 3 is meshed with motor gear 20, directly to be driven by motor gear 20.A pair of projection 29 is set the boss 11 of above-mentioned outer support ring 10 is interior, this projection 29 is housed in respective recesses portion 16 together with bolster 14, and makes bolster 14 between convex shoulder 21 and respective bump 29.The second through hole 30 is set respectively on interior support set 15, eccentric wheel 25 and spacer 26, and then matched by bearing 31 and the second through hole 30, like this, interior support set 15, eccentric wheel 25 and spacer 26 can rotate around bearing 31.
Like this, while working when machine startup, when motor gear 20 driven gears 3 and outer support ring 10, rotate together, now the projection 29 of outer support ring 10 can drive interior support set 15 and bolster 14 rotations, finally by interior support set 15, drive eccentric wheel 25 rotations that are fixedly connected with it, thereby upper and lower blade 22 is produced, do relatively reciprocating motion to branch is pruned.Under this normal operating conditions, because bolster 14 is made by plastic material, need to there is micro-distortion in it, just can make interior support set 15 normal rotation, is then with movable eccentric wheel 25 and spacer 26 rotations.And when there is stall, tool section assembly 24 and interior support set 15 stop operating, but electric machine assembly 7 is output torque still, the projection 29 of outer support ring 10 just can seriously push bolster 14, bolster 14 deflections increase, by a large amount of kinetic transformations, be potential energy, make motor gear 20 have partial buffer, prevented the damage of electric machine assembly 7 and other important spare parts.And the blocking rotation mechanism of this garden tool set can be used for alternating current and also can be used for direct current, have wide range of applications, the while is simple in structure and take up room little.
It is to be noted; above-mentioned preferred embodiment is only explanation technical conceive of the present utility model and feature; its object is to allow person skilled in the art can understand content of the present utility model and implement according to this, can not limit protection domain of the present utility model with this.All equivalences of doing according to the utility model Spirit Essence change or modify, within all should being encompassed in protection domain of the present utility model.
Claims (10)
1. the blocking rotation mechanism of a garden tool set, wherein garden tool set comprises electric machine assembly and tool section assembly, it is characterized in that: described blocking rotation mechanism comprises the geared parts that driven by electric machine assembly, be fixedly mounted on tool section assembly and and the matched interior support set of described geared parts and be arranged on geared parts and interior support set between bolster.
2. the blocking rotation mechanism of garden tool set according to claim 1, is characterized in that: described geared parts comprises gear and fixes with described gear the outer support ring connecting.
3. the blocking rotation mechanism of garden tool set according to claim 2, is characterized in that: described gear is intermeshing with the motor gear being arranged on electric machine assembly.
4. the blocking rotation mechanism of garden tool set according to claim 2, is characterized in that: described inner support cover arranges convex shoulder, and described outer support ring arranges corresponding projection, and described bolster connects between convex shoulder and projection.
5. the blocking rotation mechanism of garden tool set according to claim 2, is characterized in that: described gear arranges through hole, and described outer support ring arranges boss, and described boss and described through hole are matched.
6. the blocking rotation mechanism of garden tool set according to claim 2, is characterized in that: described interior support set and described tool section assembly adopt rivet connected mode to be fixedly connected.
7. the blocking rotation mechanism of garden tool set according to claim 2, is characterized in that: described interior support set and described tool section assembly arrange through hole, in described through hole, bearing are set.
8. the blocking rotation mechanism of garden tool set according to claim 2, is characterized in that: described gear and described outer support ring can be one-body molded.
9. the blocking rotation mechanism of garden tool set according to claim 1, is characterized in that: described bolster is made by plastic material.
10. according to the blocking rotation mechanism of garden tool set described in claim 1 to 9 any one, it is characterized in that: described garden tool set is shrub and hedge trimmer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320405045.8U CN203387957U (en) | 2013-07-09 | 2013-07-09 | Locked rotor prevention mechanism of garden tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320405045.8U CN203387957U (en) | 2013-07-09 | 2013-07-09 | Locked rotor prevention mechanism of garden tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203387957U true CN203387957U (en) | 2014-01-15 |
Family
ID=49899527
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320405045.8U Withdrawn - After Issue CN203387957U (en) | 2013-07-09 | 2013-07-09 | Locked rotor prevention mechanism of garden tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203387957U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103299837A (en) * | 2013-07-09 | 2013-09-18 | 天佑电器（苏州）有限公司 | Rotation-clogging prevention mechanism for gardening tool |
-
2013
- 2013-07-09 CN CN201320405045.8U patent/CN203387957U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103299837A (en) * | 2013-07-09 | 2013-09-18 | 天佑电器（苏州）有限公司 | Rotation-clogging prevention mechanism for gardening tool |
| CN103299837B (en) * | 2013-07-09 | 2015-08-12 | 天佑电器（苏州）有限公司 | The blocking rotation mechanism of garden tool set |
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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: 20140115 Effective date of abandoning: 20150812 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20140115 Effective date of abandoning: 20150812 |
|
| RGAV | Abandon patent right to avoid regrant |