CN208734822U - A kind of chain saw tension wheel structure - Google Patents
A kind of chain saw tension wheel structure Download PDFInfo
- Publication number
- CN208734822U CN208734822U CN201821233862.9U CN201821233862U CN208734822U CN 208734822 U CN208734822 U CN 208734822U CN 201821233862 U CN201821233862 U CN 201821233862U CN 208734822 U CN208734822 U CN 208734822U
- Authority
- CN
- China
- Prior art keywords
- ratchet
- translation
- tensioning wheel
- guide plate
- chain saw
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Sawing (AREA)
Abstract
The utility model discloses a kind of chain saw tension wheel structures, including side cover plate, tensioning wheel is provided on the outside of the side cover plate, the cam being fixedly connected with tensioning wheel is provided on the inside of the side cover plate, the cam edge is contacted with raised drive block, the first ratchet structure is provided on the outside of the side cover plate, first ratchet structure is angularly disposed toward the clockwise direction, translation ratchet mounting groove is provided in the tensioning wheel, it further include translation ratchet, the translation ratchet be mounted on translation ratchet mounting groove in and can translation ratchet mounting groove in horizontal movement, the second ratchet structure engaged with the first ratchet structure is provided on the inside of the translation ratchet, tensioning wheel is stretched out in the translation ratchet side, it is additionally provided in the translation ratchet mounting groove so that the second ratchet structure of the first ratchet structure engagement keeps the elastic construction of engagement, further including will The locking knob structure that guide plate compresses, the tension structure of this structure is convenient when in use, and stability is higher.
Description
Technical field
The utility model relates to a kind of tension wheel structure, in particular to a kind of chain saw tension wheel structure.
Background technique
Chain saw is that a kind of chain using band blade by power drives chain high speed rotation to cut timber or branch
Garden instrument, if chain is not tensioned suitably, pine, which may jump out of guide plate, excessively causes operator to injure, the chain of tension
High temperature failure may be caused due to chain and the direct excessive friction of guide plate, equally during use, due to the mill of chain
Damage, the tension of chain can change, and after a period of use, the length of chain gradually increases, and rate of tension can reduce.And current chain
Strainer on item directly cannot realize tensioning operation by rotation using complicated, and after tensioning operation it is easy to appear
Rebound, so that tensioning is unstable.
Utility model content
The technical issues of the utility model solves is to provide a kind of chain saw tension wheel structure of stable structure easy to operate.
The technical scheme adopted by the utility model to solve the technical problem is as follows: a kind of chain saw tension wheel structure, including peace
Sprocket wheel and guide plate on chain saw body, the guide plate can be moved forward and backward in chain saw body, further include be looped around sprocket wheel and
The chain of guide plate periphery is fixed with guide plate pressing plate on the guide plate, is provided with raised drive block, feature on the guide plate pressing plate
It is: further includes side cover plate, tensioning wheel is provided on the outside of the side cover plate, is provided on the inside of the side cover plate and is fixed with tensioning wheel
The cam of connection, the cam edge are contacted with raised drive block, are provided with the first ratchet structure on the outside of the side cover plate, described
First ratchet structure is angularly disposed toward the clockwise direction, and translation ratchet mounting groove is provided in the tensioning wheel, further includes translation
Ratchet, the translation ratchet be mounted in translation ratchet mounting groove and can the horizontal movement in translation ratchet mounting groove, it is described flat
The second ratchet structure engaged with the first ratchet structure is provided on the inside of dynamic ratchet, tensioning wheel is stretched out in the translation ratchet side,
It is additionally provided in the translation ratchet mounting groove so that the second ratchet structure of the first ratchet structure engagement keeps the elasticity of engagement
Structure further includes the locking knob structure for compressing guide plate.
Further, the elastic construction is reset spring, the other side of described reset spring one end and translation ratchet
Contact, the other end of the reset spring and is resisted against on the inside of tensioning wheel.
Further, the elastic construction is the arc spring lamination for being mounted on translation ratchet two sides, the tensioning wheel inside
It is additionally provided with the block that barrier effect is played to arc spring lamination, so that translation ratchet is by elastic force.
Further, first ratchet structure includes the inner ring ratchet and outer ring ratchet being arranged concentrically, described second
Ratchet structure include with the third ratchet of inner ring ratchet engagement and with the 4th ratchet of outer ring ratchet engagement.
The beneficial effects of the utility model are: the chain saw tension wheel structure of the utility model rotates clockwise tensioning wheel
Realize chain tension effect, and under the action of oblique ratchet structure tension wheel structure will not reversed turning, ensure that chain
When being tensioned stability, and needing loose chain, translation ratchet only need to be pressed, so that the second ratchet structure of the first ratchet structure engagement
It disengages, tensioning wheel can be rotated counterclockwise, play the effect of pine, convenient and efficient, stability in use is high.
Detailed description of the invention
Fig. 1 is a kind of chain saw tension wheel structure schematic diagram.
Fig. 2 is tension structure schematic diagram.
Fig. 3 is tension structure side view.
In the figure, it is marked as sprocket wheel 1, guide plate 2, chain 3, guide plate pressing plate 4, raised drive block 5, side cover plate 6, tensioning wheel 7, convex
Take turns the 8, first ratchet structure 9, translation ratchet 10, the second ratchet structure 11, reset spring 12, locking knob structure 13.
Specific embodiment
The present invention will be further described below with reference to the accompanying drawings and specific embodiments.
A kind of chain saw tension wheel structure as shown in Figure 1 to Figure 3, including the sprocket wheel 1 being mounted on chain saw body and guide plate
2, the guide plate 2 can be moved forward and backward in chain saw body, further include the chain 3 for being looped around 2 periphery of sprocket wheel 1 and guide plate, described to lead
It is fixed with guide plate pressing plate 4 on plate 2, raised drive block 5 is provided on the guide plate pressing plate 4, further includes side cover plate 6, the side cover
It is provided with tensioning wheel 7 on the outside of plate 6, the cam 8 being fixedly connected with tensioning wheel 7, the cam 8 are provided on the inside of the side cover plate 6
Edge is contacted with raised drive block 5, and the first ratchet structure 9,9 court of the first ratchet structure are provided on the outside of the side cover plate 6
It is angularly disposed clockwise, it is provided with translation ratchet mounting groove in the tensioning wheel 7, further includes translation ratchet 10, it is described flat
Dynamic ratchet 10 be mounted in translation ratchet mounting groove and can the horizontal movement in translation ratchet mounting groove, the translation ratchet 10
Inside is provided with the second ratchet structure 11 engaged with the first ratchet structure 9, and tensioning wheel 7 is stretched out in 10 side of translation ratchet,
It is additionally provided in the translation ratchet mounting groove so that the second ratchet structure 11 of the first ratchet structure 9 engagement keeps the bullet of engagement
Property structure, further include the locking knob for compressing guide plate 2, when need to chain 3 carry out locking operation when, rotate clockwise tensioning
Wheel 7, so that translation ratchet 10 be driven to rotate, translation ratchet 10 is in helical teeth direction elasticity of compression structure, so that translation ratchet 10 is flat
Dynamic, the first ratchet structure 9 and the second ratchet structure 11 disengage, when moving to second tooth, and due to the elasticity of elastic construction
Effect makes translation ratchet 10 automatically reset, the first ratchet structure 9 and the engagement of the second ratchet structure 11, to realize gear adjusting
Function, while in adjustment tensioning wheel 7 clockwise, can be pushed with the cam 8 that is fixed on tensioning wheel 7 guide plate pressing plate 4 to
It drives guide plate 2 to move, reaches the function of tightening chain 3, rotated when rotating counterclockwise tensioning wheel 7 with translation ratchet 10, due to
Tooth form is perpendicular to rotation direction to translation ratchet 10 in the counterclockwise direction, so that elasticity of compression structure is unable to reach, to make
Obtaining the first ratchet structure 9 and the second ratchet structure 11 can not disengage, and only translation ratchet 10 be pushed manual, so that the first spine
Toothing 9 and the second ratchet structure 11 disengage, and can just rotate counterclockwise tensioning wheel 7, reach the function of loose chain 3, when having adjusted
Cheng Hou, then locking knob structure 13 play pressuring action to guide plate 2, so that tensioning wheel 7 is more convenient when elastic, and stablize
Property is higher.
On the basis of the above, the elastic construction is reset spring 12, described 12 one end of reset spring and translation ratchet 10
Another side contacts, the other end of the reset spring 12 and the inside of tensioning wheel 7 is resisted against, in addition, the elastic construction may be used also
For the arc spring lamination for being mounted on translation 10 two sides of ratchet, it is additionally provided on the inside of the tensioning wheel 7 and barrier effect is risen to arc spring lamination
Block so that translation ratchet 10 by elastic force, elastic construction can also be other structures.
On the basis of the above, first ratchet structure 9 includes the inner ring ratchet and outer ring ratchet that are arranged concentrically, and described the
Two ratchet structures 11 include with the third ratchet of inner ring ratchet engagement and with the 4th ratchet of outer ring ratchet engagement, the inner ring spine
Two layers of ratchet structure of tooth and outer ring ratchet further enhances the stability of tension structure.
Particular embodiments described above has carried out into one the purpose of this utility model, technical scheme and beneficial effects
Step is described in detail, it should be understood that being not limited to this foregoing is merely specific embodiment of the utility model
Utility model, within the spirit and principle of the utility model, any modification, equivalent substitution, improvement and etc. done should all wrap
Containing being within the protection scope of the utility model.
Claims (4)
1. a kind of chain saw tension wheel structure, including the sprocket wheel (1) and guide plate (2) being mounted on chain saw body, the guide plate (2) can
It is moved forward and backward in chain saw body, further includes the chain (3) for being looped around sprocket wheel (1) and guide plate (2) periphery, on the guide plate (2)
It is fixed with guide plate pressing plate (4), is provided with raised drive block (5) on the guide plate pressing plate (4), it is characterised in that: further include side cover
Plate (6), side cover plate (6) outside are provided with tensioning wheel (7), are provided on the inside of the side cover plate (6) fixed with tensioning wheel (7)
The cam (8) of connection, cam (8) edge are contacted with raised drive block (5), are provided with first on the outside of the side cover plate (6)
Ratchet structure (9), first ratchet structure (9) is angularly disposed toward the clockwise direction, is provided with translation in the tensioning wheel (7)
Ratchet mounting groove, further includes translation ratchet (10), and the translation ratchet (10) is mounted in translation ratchet mounting groove and can be flat
Horizontal movement in dynamic ratchet mounting groove, translation ratchet (10) inside are provided with second engaged with the first ratchet structure (9)
Tensioning wheel (7) are stretched out in ratchet structure (11), the translation ratchet (10) side, and being additionally provided in the translation ratchet mounting groove makes
The second ratchet structure (11) for obtaining the first ratchet structure (9) engagement keeps the elastic construction of engagement, further includes compressing guide plate (2)
Locking knob structure (13).
2. a kind of chain saw tension wheel structure as described in claim 1, it is characterised in that: the elastic construction is reset spring
(12), another side contacts of described reset spring (12) one end and translation ratchet (10), the other end of the reset spring (12)
Be resisted against on the inside of tensioning wheel (7).
3. a kind of chain saw tension wheel structure as described in claim 1, it is characterised in that: the elastic construction is to be mounted on translation
The arc spring lamination of ratchet (10) two sides, tensioning wheel (7) inside are additionally provided with the block for playing barrier effect to arc spring lamination, make
Ratchet (10) must be translatable by elastic force.
4. a kind of chain saw tension wheel structure as described in claim 1, it is characterised in that: first ratchet structure (9) includes
The inner ring ratchet and outer ring ratchet being arranged concentrically, second ratchet structure (11) include the third ratchet with inner ring ratchet engagement
With the 4th ratchet with outer ring ratchet engagement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821233862.9U CN208734822U (en) | 2018-08-01 | 2018-08-01 | A kind of chain saw tension wheel structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821233862.9U CN208734822U (en) | 2018-08-01 | 2018-08-01 | A kind of chain saw tension wheel structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208734822U true CN208734822U (en) | 2019-04-12 |
Family
ID=66029290
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821233862.9U Active CN208734822U (en) | 2018-08-01 | 2018-08-01 | A kind of chain saw tension wheel structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208734822U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111109040A (en) * | 2020-01-21 | 2020-05-08 | 浙江三锋实业股份有限公司 | Chain saw adjusting device |
| US12053832B2 (en) | 2021-02-03 | 2024-08-06 | Techtronic Cordless Gp | Chainsaws |
-
2018
- 2018-08-01 CN CN201821233862.9U patent/CN208734822U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111109040A (en) * | 2020-01-21 | 2020-05-08 | 浙江三锋实业股份有限公司 | Chain saw adjusting device |
| CN111109040B (en) * | 2020-01-21 | 2024-05-14 | 浙江三锋实业股份有限公司 | Chain saw adjusting device |
| US12053832B2 (en) | 2021-02-03 | 2024-08-06 | Techtronic Cordless Gp | Chainsaws |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208734822U (en) | A kind of chain saw tension wheel structure | |
| CN106428400B (en) | Bicycle chain puller | |
| CN112957655A (en) | Force-disengaging protection auxiliary device for arm force rod | |
| CN201587545U (en) | Automatic band-retracting tensioner | |
| CN203130848U (en) | Safe on-off device on door closer | |
| CN202280732U (en) | One-way bearing | |
| CN207966631U (en) | A kind of transformer grounding device | |
| CN201110359Y (en) | Gear overload protection mechanism | |
| CN208615016U (en) | It is a kind of to prevent that the edge bonding belt pulled back walks band structure | |
| CN209943844U (en) | Clamping device | |
| CN208197011U (en) | A kind of electric chain saw voluntarily adjusting chain | |
| CN111658049A (en) | Disposable negative pressure haemorrhoids ligation device | |
| CN208256382U (en) | Cable stamp device | |
| CN207434388U (en) | A kind of conveyer for domestic waste swelling device | |
| CN112761453A (en) | Sliding door safety protection device based on centrifugal rotation principle and use method thereof | |
| CN209749920U (en) | Head lock and head-mounted helmet body | |
| CN207168642U (en) | A kind of pressure hemostatic adhesive bandage | |
| CN202120588U (en) | Guitar convenient for string-adjusting | |
| CN212123589U (en) | Chain saw chain tensioning mechanism | |
| TWM507663U (en) | Safeguard helmet | |
| CN109723775B (en) | Synchronous belt tensioning and loosening structure | |
| CN221569331U (en) | Chain tensioning and compacting wheel mechanism | |
| CN209781589U (en) | Synchronous belt tensioning and releasing structure | |
| CN108598988B (en) | A kind of outgoing line managing device for power construction | |
| CN208822170U (en) | A kind of sound equipment showing stand with defencive function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |