CN213352740U - Hand-pulling saw chain - Google Patents
Hand-pulling saw chain Download PDFInfo
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- CN213352740U CN213352740U CN202021862924.XU CN202021862924U CN213352740U CN 213352740 U CN213352740 U CN 213352740U CN 202021862924 U CN202021862924 U CN 202021862924U CN 213352740 U CN213352740 U CN 213352740U
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- hand
- saw chain
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Abstract
The utility model discloses a hand-pulling type saw chain, which comprises a tool bit component, an anti-collision component and an inner connecting sheet; an anti-collision component is arranged between every two adjacent cutter head components; the cutter head component comprises a cutter head unit, wherein the cutter head unit comprises a first connecting body positioned on one side of the inner connecting sheet and a cutter head part positioned on the outer side of the first connecting body; the anti-collision assembly comprises an anti-collision unit, the anti-collision unit comprises a second connecting body positioned on one side of the inner connecting sheet and an anti-collision part positioned on the outer side of the second connecting body; the anti-collision part and the cutter head part are positioned on the same direction side, and the outer edge of the anti-collision part extending outwards exceeds the outer edge of the inner connecting piece and does not exceed the outer edge of the cutter head part; this anticollision portion can avoid the timber card after the cutting to go into between two tool bit subassemblies, influences ligneous normal saw cutting.
Description
Technical Field
The utility model relates to a chain saw especially relates to a hand-pulling type saw chain for sawing timber.
Background
The handheld saw chain comprises a left cutting chain link, a right cutting chain link and a connecting chain link, wherein the left cutting chain link and the right cutting chain link are arranged in turn, and at least one connecting chain link is arranged between the adjacent left cutting chain link and the right cutting chain link.
A felling saw chain blade with the publication number of CN2332551Y is characterized in that the lower part of the blade is a connecting plate, two round holes are formed in the connecting plate, and a semicircular notch is formed above one round hole.
Saw chain of felling saw with publication number CN 107371843A.
In the felling saw chain, the cutter heads are obviously higher than the connecting sheet, so that a sunken area is formed between every two adjacent cutter heads, when wood is cut, the wood is possibly clamped between the sunken areas of the cutter heads, and the felling efficiency is further influenced; serious possibility of saw chain breakage; especially when sawing branches at high positions, the saw chain can be clamped on the branches and cannot be easily taken down.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a good reliability's hand-pulling type saw chain is provided.
The utility model provides a technical scheme that above-mentioned technical problem adopted does: the hand-pulling type saw chain is characterized by comprising a cutter head assembly, an anti-collision assembly and an inner connecting sheet; at least one anti-collision assembly is arranged between every two adjacent cutter head assemblies; the cutter head assembly comprises at least one cutter head unit, and the cutter head unit comprises a first connecting body positioned on one side of the inner connecting sheet and a cutter head part positioned on the outer side of the first connecting body;
the anti-collision assembly comprises at least one anti-collision unit, and the anti-collision unit comprises a second connecting body positioned on one side of the inner connecting sheet and an anti-collision part positioned on the outer side of the second connecting body;
the anti-collision part and the cutter head part are positioned on the same direction side, and the outer edge of the anti-collision part extending outwards exceeds the outer edge of the inner connecting piece and does not exceed the outer edge of the cutter head part.
The utility model discloses further preferred technical scheme does: the cutter head component is connected with the anti-collision component through the inner connecting piece.
The utility model discloses further preferred technical scheme does: and the adjacent anti-collision assemblies are connected through the inner connecting sheets.
The utility model discloses further preferred technical scheme does: one side of the first coupling body is also provided with a guide part, and the guide part is provided with an inclined guide surface.
The utility model discloses further preferred technical scheme does: the height difference between the outer edge of the anti-collision part and the vertex of the inclined guide surface is less than 2 mm.
The utility model discloses further preferred technical scheme does: the cutter head assembly comprises a connecting piece on the other side of the inner connecting piece, and the chain shaft sequentially penetrates through the outer connecting piece, the inner connecting piece and the cutter head unit to be connected.
The utility model discloses further preferred technical scheme does: the tool bit subassembly includes forward tool bit unit and reverse tool bit unit, and the chain axle passes forward tool bit unit, interconnection splicing and reverse tool bit unit in proper order and connects.
The utility model discloses further preferred technical scheme does: the anticollision subassembly including being located the first anticollision unit and the second anticollision unit of interconnection splicing both sides respectively, the chain axle passes first anticollision unit, interconnection splicing and second anticollision unit in proper order and connects.
The utility model discloses further preferred technical scheme does: the anti-collision assembly comprises a forward anti-collision unit and a reverse anti-collision unit, and the chain shaft sequentially penetrates through the forward anti-collision unit, the inner connecting sheet and the reverse anti-collision unit to be connected.
The utility model discloses further preferred technical scheme does: the anti-collision unit is trapezoidal.
Compared with the prior art, the utility model has the advantages that be equipped with at least one anticollision subassembly between two adjacent tool bit subassemblies, anticollision portion with tool bit portion be located same direction side, and the outer edge that anticollision portion extends to the outside exceeds the outer edge of in-connection splicing, and does not exceed the outer edge of tool bit portion. This anticollision portion can avoid the timber card after the cutting to go into between two tool bit subassemblies, influences ligneous normal saw cutting.
Drawings
The present invention will be described in further detail below with reference to the drawings and preferred embodiments, but those skilled in the art will appreciate that the drawings are only drawn for the purpose of explaining the preferred embodiments, and therefore should not be taken as limiting the scope of the present invention. Furthermore, unless specifically stated otherwise, the drawings are intended to be conceptual in nature or configuration of the described objects and may contain exaggerated displays and are not necessarily drawn to scale.
FIG. 1 is a schematic view of a chain saw according to an embodiment;
FIG. 2 is an exploded view of the hand-pulled type saw chain according to the first embodiment;
FIG. 3 is a schematic view of a chain saw according to an embodiment;
FIG. 4 is a schematic structural diagram of a hand-pulled type saw chain according to the second embodiment;
FIG. 5 is a schematic view of the structure of the hand-pulled type saw chain in the second embodiment;
FIG. 6 is a schematic view of the chain saw according to the second embodiment;
FIG. 7 is a schematic structural view of a hand-pulled type saw chain in the third embodiment;
FIG. 8 is a schematic structural view of a hand-pulled type saw chain in the third embodiment;
fig. 9 is an overall schematic view of the hand-pulled type saw chain in the third embodiment.
Detailed Description
Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Those skilled in the art will appreciate that the description is illustrative only, and is not to be construed as limiting the scope of the invention.
It should be noted that: like reference numerals refer to like items in the following figures, and thus, once an item is defined in one figure, it may not be further defined and explained in subsequent figures.
The first embodiment is as follows:
as shown in fig. 1 to fig. 3, are schematic structural views of the hand-pull type saw chain in this embodiment, specifically:
the hand-pull type saw chain 100 comprises a cutter head assembly 101, an anti-collision assembly 201 and an inner connecting piece 90; an anti-collision assembly 201 is arranged between two adjacent cutter head assemblies 101;
the cutter head assembly 101 comprises a cutter head unit 10, wherein the cutter head unit 10 comprises a first coupling body 11 positioned on one side of the inner connecting sheet 90 and a cutter head part 12 positioned on the outer side of the first coupling body 11;
the bumper assembly 201 comprises a bumper unit 20, wherein the bumper unit 20 comprises a second coupling body 21 positioned on one side of the inner connecting sheet 90 and a bumper portion 22 positioned on the outer side of the second coupling body 21; in actual installation, the collision-prevention units 20 and the cutter head units 10 are located on the same side, and the collision-prevention unit 20 between two cutter head units 10 plays a role in preventing cut wood from being clamped between two adjacent cutter head parts 12; of course, the crash unit 20 may be mounted on both sides of the inner connecting sheet 90, or a common connecting sheet may be mounted only on the opposite side of the crash unit 20.
It should be noted that the collision avoidance unit 20 of the present embodiment is generally a one-piece structure, and the second coupling body 21 and the collision avoidance portion 22 are described by adopting the above structure, only for the purpose of highlighting that the collision avoidance unit 20 has a collision avoidance portion 22 compared to the conventional coupling body, and the collision avoidance portion 22 can achieve the collision avoidance effect that the conventional coupling body does not have. And preferably, the second coupling body 21 extends outward to form a convex bump guard 22; a connection hole for connecting the inner connection piece 90 of the bump guard unit 20 is opened in the second coupling body 21.
The bump guard 22 is located on the same direction side as the bit portion 12, and an outer edge of the bump guard 22 extending outward exceeds an outer edge of the inner connecting piece 90 and does not exceed an outer edge of the bit portion 12. The outer edge of the bump stopper 22 does not extend beyond the outer edge of the bit portion 12, so that the bump stopper 22 is protected from being worn when cutting wood.
The cutter head assembly 101 is connected with the anti-collision assembly 201 through the inner connecting piece 90.
The first coupling body 11 is further provided at one side thereof with a guide portion 30, and the guide portion 30 has an inclined guide surface 30 s. In actual design, it is preferable that the difference in height between the outer edge of the bump guard 22 and the apex of the inclined guide surface 30s be less than 2 mm.
The cutter head assembly 101 includes an outer connecting piece 40 at the other side of the inner connecting piece 90, and the link shaft 50 is connected through the outer connecting piece 40, the inner connecting piece 90 and the cutter head unit 20 in sequence.
An anti-collision assembly 201 is arranged between the two cutter head assemblies 101, the anti-collision part 22 and the cutter head part 12 are positioned on the same direction side, and the outer edge of the anti-collision part 22 extending outwards exceeds the outer edge of the inner connecting piece 90 and does not exceed the outer edge of the cutter head part 12. The anti-collision part 22 can prevent the cut wood from being clamped between the two cutter head assemblies 101 and affecting the normal sawing of the wood.
The overall structure of the crash unit 20 is trapezoidal. The bump guard portion 22 of the trapezoidal-shaped bump guard unit 20 includes a transition guide surface 22s, the transition guide surface 22s cooperates with a sloped guide surface 30s on the guide portion 30 to reduce the hard friction between the two when they contact each other, and both guide surfaces are smooth arc-shaped slopes, further making the two smoothly transition when cutting work is performed.
Preferably, in the present embodiment, the crash module 201 includes a first crash unit 21a and a second crash unit 22b respectively located at both sides of the inner connecting piece 90, and the chain axle 50 is connected through the first crash unit 21a, the inner connecting piece 90 and the second crash unit 22b in sequence.
Preferably, as shown in fig. 1 and 2, the two cutter head assemblies 101 are separated by one collision prevention assembly 201, and one of the two cutter head assemblies 101 is located on the front surface of the inner connecting plate 90, and the other cutter head assembly 101 is located on the back surface of the inner connecting plate 90; so that the hand-pulling type saw chain 100 can cut the wood on both sides of the front surface when cutting the wood.
Example two:
as shown in fig. 4 to 6, are schematic structural views of the hand-pull type saw chain in this embodiment, specifically:
the hand-pull type saw chain 100 comprises a cutter head assembly 101, an anti-collision assembly 201 and an inner connecting piece 90; two anti-collision assemblies 20 are arranged between two adjacent cutter head assemblies 101;
the cutter head assembly 101 comprises a cutter head unit 10, wherein the cutter head unit 10 comprises a first coupling body 11 positioned on one side of the inner connecting sheet 90 and a cutter head part 12 positioned on the outer side of the first coupling body 11;
the bumper assembly 201 comprises a bumper unit 20, wherein the bumper unit 20 comprises a second coupling body 21 positioned on one side of the inner connecting sheet 90 and a bumper portion 22 positioned on the outer side of the second coupling body 21; in actual installation, the collision-prevention units 20 and the cutter head units 10 are located on the same side, and the collision-prevention unit 20 between two cutter head units 10 plays a role in preventing cut wood from being clamped between two adjacent cutter head parts 12; of course, the crash unit 20 may be mounted on both sides of the inner connecting sheet 90, or a common connecting sheet may be mounted only on the opposite side of the crash unit 20.
In this embodiment, the adjacent bumper assemblies 201 are connected by the inner connecting piece 90. The adjacent bumper assembly 201 and the cutter head assembly 101 are also connected by the inner connecting piece 90.
Unlike the first embodiment, two anti-collision assemblies 201 are disposed between the two cutter head assemblies 101 in this embodiment to further match the need of the hand-pulled saw chain 100 to cut thicker wood. Specifically, when cutting thicker lumber, the curvature of the curve contacted by the two cutter assemblies 101 will tend to be larger, and therefore the two bumper assemblies 201 are employed to better transition the two cutter assemblies 101. Of course, one skilled in the art may also configure the bumper assembly 201 as a whole to a wider size; it should be noted, however, that two bumper assemblies 201 connected in a segmented fashion are preferred because they can be bent to match different curved surfaces.
Preferably, as shown in fig. 3 and 4, the two cutter head assemblies 101 are spaced apart by two anti-collision assemblies 201, and one of the two cutter head assemblies 101 is located on the front surface of the inner connecting plate 90, and the other cutter head assembly 101 is located on the back surface of the inner connecting plate 90; so that the hand-pulling type saw chain 100 can cut the wood on both sides of the front surface when cutting the wood.
Example three:
as shown in fig. 7 and 9, a schematic structural diagram of a hand-pulled type saw chain in the third embodiment is shown, specifically:
the hand-pull type saw chain 100 comprises a cutter head assembly 101, an anti-collision assembly 201 and an inner connecting piece 90; an anti-collision component 20 is arranged between the two cutter head components 101;
the cutter head assembly 101 comprises a cutter head unit 10, wherein the cutter head unit 10 comprises a first coupling body 11 positioned on one side of the inner connecting sheet 90 and a cutter head part 12 positioned on the outer side of the first coupling body 11;
the bumper assembly 201 comprises a bumper unit 20, wherein the bumper unit 20 comprises a second coupling body 21 positioned on one side of the inner connecting sheet 90 and a bumper portion 22 positioned on the outer side of the second coupling body 21; in actual installation, the collision prevention unit 20 is located on the same side as the cutter head units 10, and the collision prevention unit 20 between two cutter head units 10 plays a role in preventing cut wood from being caught between two adjacent cutter head portions 12.
In this embodiment, the bumper assembly 201 is connected to the cutter head assembly 101 through the inner connecting plate 90.
Different from the two embodiments, the collision avoidance module 201 in the embodiment includes a forward collision avoidance unit a and a reverse collision avoidance unit B, and the chain shaft 50 sequentially passes through the forward collision avoidance unit, the inner connecting piece 90 and the reverse collision avoidance unit to be connected.
Correspondingly, the cutter head assembly 101 comprises a forward cutter head unit 10a and a reverse cutter head unit 10b, and the chain axle 50 is connected through the forward cutter head unit 10a, the inner connecting piece 90 and the reverse cutter head unit 10b in sequence.
In this embodiment, the front and back contact surfaces of the hand-pull saw chain 100 are both provided with the cutter head units 10, so that the front and back surfaces can both cut wood.
For the forward and reverse anti-collision assemblies 201 corresponding to the forward and reverse cutter head units 10, the directions correspond to each other, that is, the forward anti-collision unit a is located on the same side as the forward cutter head unit 10a, and the reverse anti-collision unit B is located on the same side as the reverse cutter head unit 10B. So that the transition guide surface 22s of the adjacent bump guard unit 20 and the inclined guide surface 30s of the guide portion 30 can match each other when the hand-pull type saw chain 100 is cutting wood, so as to reduce the hard friction between the bump guard unit 20 and the cutter head unit 10 when they are in contact, and both guide surfaces are smooth arc-shaped inclined surfaces, further making the two smoothly transition when cutting work is performed.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "front", "rear", "inner", "outer", etc. are the directions or positional relationships that are usually placed when the product of the present invention is used, and are based on the directions or positional relationships shown in the drawings, or the directions or positional relationships shown in the drawings, only for convenience of describing the present invention and simplifying the description, but not for indicating or implying that the indicated device or element must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the present invention.
It is right above the utility model provides a hand-pulling type saw chain has carried out detailed introduction, and it is right to have used specific individual example herein the utility model discloses a principle and embodiment have explained, and the explanation of above embodiment is only used for helping to understand the utility model discloses and core thought. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.
Claims (10)
1. The hand-pulling type saw chain is characterized by comprising a cutter head assembly, an anti-collision assembly and an inner connecting sheet; at least one anti-collision assembly is arranged between every two adjacent cutter head assemblies;
the cutter head assembly comprises at least one cutter head unit, and the cutter head unit comprises a first connecting body positioned on one side of the inner connecting sheet and a cutter head part positioned on the outer side of the first connecting body;
the anti-collision assembly comprises at least one anti-collision unit, and the anti-collision unit comprises a second connecting body positioned on one side of the inner connecting sheet and an anti-collision part positioned on the outer side of the second connecting body;
the anti-collision part and the cutter head part are positioned on the same direction side, and the outer edge of the anti-collision part extending outwards exceeds the outer edge of the inner connecting piece and does not exceed the outer edge of the cutter head part.
2. The hand-pull saw chain of claim 1, wherein the cutter head assembly is connected to the bump guard assembly by the inner connecting piece.
3. The hand-pulled saw chain of claim 1, wherein adjacent bumper modules are connected by the inner connecting piece.
4. A hand saw chain according to claim 1, wherein the first coupling body is further provided with a guide portion on one side thereof, the guide portion having an inclined guide surface.
5. A hand saw chain according to claim 4, wherein the outer edge of the bump guard has a height difference of less than 2 mm from the apex of the inclined guide surface.
6. The hand-pull saw chain of claim 1, wherein the cutter head assembly comprises an outer connecting piece at the other side of the inner connecting piece, and the chain shaft is connected through the outer connecting piece, the inner connecting piece and the cutter head unit in sequence.
7. The hand-pull saw chain of claim 1, wherein the cutter head assembly comprises a forward cutter head unit and a reverse cutter head unit, and the chain shaft sequentially passes through the forward cutter head unit, the inner connecting piece and the reverse cutter head unit to be connected.
8. The hand-pulling type saw chain of claim 6, wherein the anti-collision assembly comprises a first anti-collision unit and a second anti-collision unit respectively located at two sides of the inner connection piece, and the chain shaft is connected through the first anti-collision unit, the inner connection piece and the second anti-collision unit in sequence.
9. The hand-pull saw chain according to claim 7, wherein the collision avoidance assembly comprises a forward collision avoidance unit and a reverse collision avoidance unit, and the chain shaft is connected to the forward collision avoidance unit, the inner connection plate and the reverse collision avoidance unit in sequence.
10. The hand-pull saw chain of claim 1, wherein the collision avoidance unit is trapezoidal in shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021862924.XU CN213352740U (en) | 2020-08-31 | 2020-08-31 | Hand-pulling saw chain |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021862924.XU CN213352740U (en) | 2020-08-31 | 2020-08-31 | Hand-pulling saw chain |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213352740U true CN213352740U (en) | 2021-06-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021862924.XU Active CN213352740U (en) | 2020-08-31 | 2020-08-31 | Hand-pulling saw chain |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213352740U (en) |
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2020
- 2020-08-31 CN CN202021862924.XU patent/CN213352740U/en active Active
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