CN212123589U - Chain saw chain tensioning mechanism - Google Patents
Chain saw chain tensioning mechanism Download PDFInfo
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- CN212123589U CN212123589U CN202020336691.3U CN202020336691U CN212123589U CN 212123589 U CN212123589 U CN 212123589U CN 202020336691 U CN202020336691 U CN 202020336691U CN 212123589 U CN212123589 U CN 212123589U
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- chain
- gear
- tensioning mechanism
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Abstract
The utility model discloses a chain saw chain tensioning mechanism, including the link joint body, the inside rotation of link joint body is connected with the chain, the inside one side fixedly connected with reset spring of link joint body, one side fixedly connected with chain support piece of reset spring, the positive one side swing joint of link joint body has the gear back shaft, the first gear of one end fixedly connected with of gear back shaft. The utility model discloses a reset spring can reduce its impact force that receives, can make the chain resume the normal position rapidly after losing pressure, thereby prevent the saw chain because of the too violent emergence of atress from damaging, thereby can avoid the saw chain atress too violent to make it loosen from the staff hand to take off simultaneously, leads to the emergence of potential safety hazard.
Description
Technical Field
The utility model relates to a chain saw technical field especially relates to a chain saw chain rises and tightly constructs.
Background
A chain saw is a gardening tool for cutting wood or branches by using a chain with blades to drive the chain to rotate at a high speed through power. If the chain is not properly tensioned, too loose may jump off the guide plate causing injury to the operator, and too tight a chain may cause high temperature failure due to excessive friction between the chain and the guide plate. Also during use, the tension of the chain changes considerably due to wear of the chain, which gradually increases over time and decreases.
In the prior art, a worker needs to adjust the tension degree of a chain, but in the adjusting process, the saw chain is easy to loosen due to improper operation, the chain saw is damaged, and even the personal safety is damaged.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the problem that the chain saw is easy to loosen due to improper operation in the prior art, and the chain saw is damaged or even the personal safety is damaged, and providing a chain saw chain tensioning mechanism.
In order to achieve the above purpose, the utility model adopts the following technical scheme: the chain saw chain tensioning mechanism comprises a chain plate body, wherein a chain is rotatably connected inside the chain plate body, a reset spring is fixedly connected to one side of the inside of the chain plate body, a chain supporting piece is fixedly connected to one side of the reset spring, a gear supporting shaft is movably connected to one side of the front surface of the chain plate body, a first gear is fixedly connected to one end of the gear supporting shaft, and the first gear is meshed with the chain supporting piece.
Preferably, the chain plate body is internally provided with a chain wheel, and one side of the front surface of the chain plate body is provided with a gear sliding rod.
Preferably, the sliding grooves are formed in two sides of the gear sliding rod, and the gear sliding rod is arranged inside the rack.
Preferably, the number of the sliding grooves is two, a sliding rod rotating shaft is connected inside one of the sliding grooves in a sliding mode, and a gear supporting shaft is connected inside the other sliding groove in a sliding mode.
Preferably, one end of the rotating shaft of the sliding rod is fixedly connected with a rotating handle, and the outer surface of the rotating handle is sleeved with an anti-slip sleeve.
Preferably, a limiting groove is formed in one side of the chain plate body, and the chain supporting piece is arranged inside the limiting groove.
Compared with the prior art, the utility model provides a chain saw chain rises and tightly constructs possesses following beneficial effect:
1. the utility model discloses, through first gear, the link joint body, the cooperation of chain support piece and chain is used, the staff accessible makes first gear rotate, can drive chain support piece and stretch out and draw back, can adjust the elasticity of chain, it is fixed to make the gear back shaft lock through locking bolt after the regulation is accomplished, and the staff can adjust it according to the length of chain, the staff of being convenient for installs this chain, whole operation is not only simple convenient, time saving and labor saving, and simple structure is compact, the cost of manufacture is lower, very big improvement the device's practicality.
2. The utility model discloses, use through the cooperation of chain support piece, reset spring and chain, the staff is when using this chain saw, and the chain receives external force to influence and can make chain support piece reset, can reduce its impact force that receives through reset spring, can make the chain resume the normal position rapidly after losing pressure, thereby prevent that the saw chain from taking place to damage because of the atress is too violent, thereby can avoid the saw chain atress too violent simultaneously to make it loosen from the staff hand and take off, lead to the emergence of potential safety hazard.
The part that does not relate to among the device all is the same with prior art or can adopt prior art to realize, the utility model discloses can adjust the elasticity of chain, it is fixed to make gear support shaft lock through the locking bolt after the regulation is accomplished, and the staff can adjust it according to the length of chain, and the staff of being convenient for installs this chain, and whole operation is not only simple convenient, labour saving and time saving, and simple structure is compact, the cost of manufacture is lower, very big improvement the device's practicality.
Drawings
FIG. 1 is a schematic front view of the present invention;
FIG. 2 is a side view of the gear supporting shaft of the present invention;
FIG. 3 is a schematic view of the front cross-sectional structure of the chain support of the present invention;
fig. 4 is a schematic view of the front sectional structure of the gear sliding rod of the present invention.
In the figure: 1. a chain plate body; 2. a chain; 3. a return spring; 4. a chain support; 5. a gear support shaft; 6. a first gear; 7. a gear slide bar; 8. a chute; 9. a slide lever rotating shaft; 10. the handle is rotated.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Referring to fig. 1-4, a chain saw chain tensioning mechanism, including link joint body 1, link joint body 1's inside rotation is connected with chain 2, one side fixedly connected with reset spring 3 of link joint body 1 inside, one side fixedly connected with chain support piece 4 of reset spring 3, chain 2 is when operation, receive external force and influence and can make chain support piece 4 reset, can reduce the impact force that it received through reset spring 3, can make chain 2 resume the normal position rapidly after losing pressure, thereby prevent that the saw chain from taking place to damage because of the atress is too violent, thereby can avoid the saw chain atress too violent simultaneously to make it loosen from staff's hand and take off, lead to the emergence of potential safety hazard.
Openly one side swing joint of link joint body 1 has gear back shaft 5, and the one end fixedly connected with first gear 6 of gear back shaft 5, first gear 6 and chain support piece 4 meshing are connected, can drive first gear 6 after gear back shaft 5 rotates and make chain support piece 4 stretch out and draw back, and one side of gear back shaft 5 is provided with the locking bolt, can lock it through the locking bolt, avoids gear back shaft 5 to rotate.
The inside of link joint body 1 is provided with the sprocket, 1 positive one side of link joint body is provided with gear slide bar 7, spout 8 has all been seted up to gear slide bar 7's both sides, gear slide bar 7 sets up the inside in the frame, the quantity of spout 8 is two, the inside sliding connection of one of them spout 8 has slide bar axis of rotation 9, the inside sliding connection of another spout 8 has gear back shaft 5, can make gear slide bar 7 drive gear back shaft 5 rotate through slide bar axis of rotation 9, the rotatory handle 10 of one end fixedly connected with of slide bar axis of rotation 9, the antiskid cover has been cup jointed to the surface of rotatory handle 10, can drive slide bar axis of rotation 9 and rotate through twisting rotatory handle 10, the spacing groove has been seted up to one side of link joint body 1, chain support piece 4 sets up the inside of spacing groove.
In the utility model, through the cooperation of the first gear 6, the chain plate body 1, the chain support piece 4 and the chain 2, the worker can drive the chain support piece 4 to extend and contract by rotating the first gear 6, thereby adjusting the tightness of the chain 2, the gear support shaft 5 is locked and fixed by the locking bolt after the adjustment is finished, and the worker can adjust the chain 2 according to the length of the chain, thereby being convenient for the worker to install the chain 2, the whole operation is simple, convenient, time-saving and labor-saving, the structure is simple and compact, the manufacturing cost is lower, the practicability of the device is greatly improved, through the cooperation of the chain support piece 4, the reset spring 3 and the chain 2, when the worker uses the chain saw, the chain 2 can reset the chain support piece 4 under the influence of external force, the impact force received by the reset spring 3 can be reduced, the chain 2 can be quickly restored after pressure is lost, so that the saw chain is prevented from being damaged due to over-violent stress, and the saw chain can be prevented from being loosened from the hands of workers due to over-violent stress, and potential safety hazards are caused.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (6)
1. The utility model provides a chain saw chain tensioning mechanism, includes link joint body (1), its characterized in that, the inside rotation of link joint body (1) is connected with chain (2), inside one side fixedly connected with reset spring (3) of link joint body (1), one side fixedly connected with chain support piece (4) of reset spring (3), positive one side swing joint of link joint body (1) has gear back shaft (5), the first gear (6) of one end fixedly connected with of gear back shaft (5), first gear (6) are connected with chain support piece (4) meshing.
2. The chain saw chain tensioning mechanism as recited in claim 1, characterized in that the chain plate body (1) is provided with a sprocket inside, and one side of the front face of the chain plate body (1) is provided with a gear sliding bar (7).
3. The chain saw chain tensioning mechanism as recited in claim 2, characterized in that the gear sliding bar (7) has sliding grooves (8) on both sides, and the gear sliding bar (7) is disposed inside the frame.
4. A chainsaw chain tensioning mechanism according to claim 3, wherein the number of the slide grooves (8) is two, one of the slide grooves (8) is slidably connected with a slide bar rotating shaft (9) inside, and the other slide groove (8) is slidably connected with a gear supporting shaft (5) inside.
5. The chain saw chain tensioning mechanism as recited in claim 4, characterized in that a rotating handle (10) is fixedly connected to one end of the sliding bar rotating shaft (9), and an anti-slip sleeve is sleeved on the outer surface of the rotating handle (10).
6. The chain saw chain tensioning mechanism as recited in claim 1, wherein one side of the chain plate body (1) is provided with a limiting groove, and the chain support member (4) is provided inside the limiting groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020336691.3U CN212123589U (en) | 2020-03-17 | 2020-03-17 | Chain saw chain tensioning mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020336691.3U CN212123589U (en) | 2020-03-17 | 2020-03-17 | Chain saw chain tensioning mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212123589U true CN212123589U (en) | 2020-12-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020336691.3U Active CN212123589U (en) | 2020-03-17 | 2020-03-17 | Chain saw chain tensioning mechanism |
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| CN (1) | CN212123589U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113475258A (en) * | 2021-07-21 | 2021-10-08 | 濮阳市林业科学院 | Walnut tree pruning device and method |
-
2020
- 2020-03-17 CN CN202020336691.3U patent/CN212123589U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113475258A (en) * | 2021-07-21 | 2021-10-08 | 濮阳市林业科学院 | Walnut tree pruning device and method |
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