CN219685953U - Thermal insulation board tensile structure of chain saw - Google Patents
Thermal insulation board tensile structure of chain saw Download PDFInfo
- Publication number
- CN219685953U CN219685953U CN202320663738.0U CN202320663738U CN219685953U CN 219685953 U CN219685953 U CN 219685953U CN 202320663738 U CN202320663738 U CN 202320663738U CN 219685953 U CN219685953 U CN 219685953U
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- Prior art keywords
- heat insulation
- oil tank
- connecting hole
- screw
- tensile
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- 238000009413 insulation Methods 0.000 title claims abstract description 49
- 239000002184 metal Substances 0.000 claims description 20
- 229910052751 metal Inorganic materials 0.000 claims description 20
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 239000003921 oil Substances 0.000 description 28
- 238000010586 diagram Methods 0.000 description 2
- 238000004512 die casting Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
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- Sawing (AREA)
Abstract
The utility model discloses a heat insulation board tensile structure of a chain saw, which comprises: the engine is embedded in the middle of the oil tank, two sides of the oil tank are provided with heat insulation boards, and the heat insulation boards are provided with first connecting holes; the handle is positioned at the rear of the oil tank and is provided with an integrated collet which extends to the lower part of the oil tank, and the collet is provided with a second connecting hole which corresponds to the first connecting hole; the tensile piece comprises an embedded part and an annular piece positioned at one end of the embedded part, the embedded part is plugged into the first connecting hole of the heat insulation board and the second connecting hole of the bottom bracket, the annular piece is positioned at the outer side of the first connecting hole, the annular piece leans against the heat insulation board, and the middle of the tensile piece passes through the screw. The utility model adds the heat insulation board of the oil tank as the connecting piece, and a certain distance is arranged between the heat insulation board and the engine, so that heat transfer is reduced. The heat insulating plate and the handle are used as an intermediate medium through the tensile member, and the tensile member is sleeved on the heat insulating plate to increase the contact area, so that the change of the attaching amplitude after thermal deformation is small.
Description
Technical Field
The utility model belongs to the field of gasoline chain saws, relates to a connecting structure of a chain saw handle, and particularly relates to a tensile structure of a heat insulation board of a chain saw.
Background
Chain saws are short for "gasoline chain saws" or "gasoline powered saws". The sawing mechanism of the power saw for felling and making timber is a saw chain, and the power part is a gasoline engine.
The chain saw comprises an oil tank, an engine is positioned in the middle of the oil tank, and a handle is arranged at the tail part of the oil tank. The engine is fully enclosed in the casing, and the heat dissipation performance of the engine is limited.
The existing problem lies in that the handle and the shell, the oil tank and the engine are connected by screws, once the engine is overloaded and operates, the heat is overlarge, so that the handle, the shell and the oil tank made of plastic materials are softened to a certain extent, the screws become overheated, the connection tensile strength of the screws to the handle, the shell and the oil tank is reduced, the connection gap is loosened when the screws are light, and the screws fall off when the screws are heavy.
Disclosure of Invention
In order to overcome the defects in the prior art, the utility model provides a heat insulation plate tensile structure of a chain saw.
In order to solve the technical problems, the utility model provides the following technical scheme: a thermal shield tensile structure for a chain saw, comprising:
the engine is embedded in the middle of the oil tank, the two sides of the oil tank are provided with heat insulation boards, the heat insulation boards and the oil tank are integrally formed, the heat insulation boards are blocked on the two sides of the engine, and the heat insulation boards are provided with first connecting holes;
the handle is positioned at the rear of the oil tank and is provided with an integrated bottom bracket, the bottom bracket extends to the lower part of the oil tank, the bottom bracket is provided with a second connecting hole, the heat insulation plates are overlapped on the two sides of the bottom bracket, and the second connecting hole corresponds to the first connecting hole;
the tensile member comprises an embedded part and an annular piece positioned at one end of the embedded part, the embedded part is plugged into a first connecting hole of the heat insulation board and a second connecting hole of the collet, the annular piece is positioned at the outer side of the first connecting hole and leans against the heat insulation board, the tensile member passes through a screw in the middle, the big end of the screw is limited on the embedded part, and the threaded part of the screw is connected with the collet.
Further, the tensile member is of a metal cap structure, the annular piece is of a cap peak portion of the metal cap, the embedded portion and the annular piece are integrally formed in a die-casting mode, a hole is formed in the middle of the metal cap, and the diameter of the hole is larger than that of a stud of a screw and smaller than that of a large head of the screw.
Further, the diameter of the annular piece is larger than that of the first connecting hole;
or a step is arranged in the first connecting hole, and the annular sheet is clamped on the step.
Another technical scheme, the heat insulating board tensile structure of chain saw, its characterized in that includes:
the engine is embedded in the middle of the oil tank, the two sides of the oil tank are provided with heat insulation boards, the heat insulation boards and the oil tank are integrally formed, the heat insulation boards are blocked on the two sides of the engine, and the heat insulation boards are provided with first connecting holes;
the handle is positioned at the rear of the oil tank and is provided with an integrated collet which extends to the lower part of the oil tank, the heat insulation plates are overlapped on two sides of the collet, and the connecting holes are correspondingly arranged on two sides of the collet;
the tensile member comprises an embedded part and an annular piece positioned at one end of the embedded part, the embedded part is plugged into a first connecting hole of the heat insulation board, the annular piece is positioned at the outer side of the first connecting hole and leans against the heat insulation board, the tensile member passes through a screw in the middle, the big end of the screw is limited on the embedded part, and the threaded part of the screw is connected with the bottom bracket.
Further, the tensile member is of a metal cap structure, the annular piece is of a cap peak portion of the metal cap, the embedded portion and the annular piece are integrally formed in a die-casting mode, a hole is formed in the middle of the metal cap, and the diameter of the hole is larger than that of a stud of a screw and smaller than that of a large head of the screw.
Further, the diameter of the annular piece is larger than that of the first connecting hole;
or a step is arranged in the first connecting hole, and the annular sheet is clamped on the step.
Compared with the prior art, the utility model is additionally provided with the heat insulation plate of the oil tank as the connecting piece, a certain distance is arranged between the heat insulation plate and the engine, heat transfer is reduced, and the heat insulation plate is used as a part for connecting the handle.
The heat insulating plate and the handle are used as an intermediate medium through the tensile member, and the contact area is increased by sleeving the tensile member on the heat insulating plate, and the bonding amplitude is changed slightly after thermal deformation, so that better tensile property is provided between the handle and the connecting part when the handle is stressed.
Drawings
The present utility model will be described in further detail below in conjunction with the drawings and the preferred embodiments, but it will be appreciated by those skilled in the art that these drawings are drawn merely for the purpose of illustrating the preferred embodiments and should not therefore be taken as limiting the scope of the utility model, and furthermore, unless specifically indicated, the drawings are merely schematic in nature to conceptually illustrate the composition or construction of the objects described and may contain exaggerated representations, and the drawings are not necessarily drawn to scale.
FIG. 1 is a schematic diagram of the entire structure of a chain saw according to the present utility model;
FIG. 2 is a schematic diagram of a connection structure according to the present utility model;
FIG. 3 is a schematic view of a shoe position according to the present utility model;
FIG. 4 is a schematic view showing the combination and disassembly of the shoe and the heat shield of the present utility model;
FIG. 5 is a second schematic view showing the combination and disassembly of the shoe and the heat shield of the present utility model;
FIG. 6 is a schematic view of a tensile member according to the present utility model;
fig. 7 is a second schematic view of the tensile member of the present utility model.
The machine shell is shown in the figure 1; 2, chain saw; 3, an oil tank; 4, an engine; 5, insulating boards; 6, a handle; 6-1 underwire; 7, a tensile member; 7-1 annular sheets; 7-2 embedding parts; 7-3 holes; 8, connecting the first hole; 9, a screw; 10 screw holes.
Description of the embodiments
The preferred embodiments of the present utility model will be described in detail below with reference to the drawings, and those skilled in the art will appreciate that the descriptions are merely illustrative, exemplary, and should not be construed as limiting the scope of the present utility model.
It should be noted that: like reference numerals denote 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 the following figures.
The utility model shown in fig. 1 is arranged on a chain saw 2, and solves the problem that the handle 6 has tensile property when the engine 4 is overheated, so that the handle 6 is prevented from loosening to meet the safety standards.
The engine 4 of the utility model shown in fig. 2 is embedded in the middle of the plastic oil tank 3, the oil tank 3 shown in fig. 5 is in a longer shape, the upper half part of the engine 4 is exposed, the lower half part of the engine 4 is embedded in the oil tank 3, a groove is arranged in the middle of the oil tank 3 and is used for embedding the engine 4, the exposed engine 4 is also wrapped in the shell 1, and the front and the rear parts of the engine 4 are respectively provided with a fixing part which is fixed with the oil tank 3 and a part which is fixed with a part on a handle at the rear part, so that the engine is in the prior art.
The two sides of the oil tank 3 shown in fig. 4 and 5 are provided with heat insulation boards 5, the heat insulation boards 5 and the oil tank 3 are integrally formed, specifically, the two sides of the oil tank 3 are not shielded, the grooves are formed with the crude oil tank 3 after the heat insulation boards 5 are arranged for installing the engine 4, and the heat insulation boards 5 are also blocked at the two sides of the engine 4.
The heat insulating plate 5 has certain heat insulating effect, the heat insulating plate 5 is larger, the heat insulating plate 5 is provided with a first connecting hole 8, the first connecting hole 8 is far away from a heat source formed by the engine 4, and more preferably, the first connecting hole 8 is close to the lower part of the heat insulating plate 5.
The handle 6 of the chain saw shown in fig. 3 is located behind the oil tank 3, and the handle 6 is provided with an integral shoe 6-1, the shoe 6-1 extending below the oil tank 3, the shoe 6-1 being intended to hold the whole machine.
In the first scheme, the first connecting hole 8 shown in fig. 3 is located at two sides of the bottom bracket 6-1, and is provided with a tensile member 7, which is inserted into the first connecting hole 8, so that the tensile member 7 increases the contact area with the heat insulation board 5, and generally, the tensile member 7 is made of metal, such as a copper member or a stainless steel member, and the bonding amplitude after thermal deformation is less changed.
The tension member 7 shown in fig. 6 to 7 includes an embedded portion 7-2 and an annular piece 7-1 located at one end of the embedded portion 7-2, and can be regarded as the tension member 7 being a metal cap structure, the annular piece 7-1 being a cap peak portion of the metal cap, the embedded portion 7-2 and the annular piece 7-1 being integrally die-cast, and a hole 7-3 being provided in the middle of the metal cap.
The embedded part 7-2 is plugged into the first connecting hole 8 of the heat insulating plate 5, the annular piece 7-1 is positioned outside the first connecting hole 8, the annular piece 7-1 is abutted against the heat insulating plate 5, and the hole 7-3 in the middle of the metal cap penetrates through the screw 9. The diameter of the annular sheet 7-1 is larger than that of the first connecting hole 8; or the inside of the first connecting hole 8 is provided with a step, and the annular piece 7-1 is clamped on the step.
The large end of the screw 9 is limited on the embedded part 7-2, the threaded part of the screw 9 is directly connected with the collet 6-1 in a threaded way, and a screw hole 10 is arranged on the side edge of the collet 6-1.
The diameter of the hole 7-3 is larger than the diameter of the stud of the screw 9 and smaller than the diameter of the big head of the screw 9. The tensile principle is that the contact area is enlarged by the metal cap and the annular piece 7-1, the stress of the machine body and the handle 6 is not caused to generate clearance or deformation between the tensile piece 7 and the first connecting hole 8 when the machine body is used, the screw 9 directly acts on the tensile piece 7, the tensile piece 7 is made of metal, clearance change is difficult to generate between the screw 9 and the tensile piece 7, the collet 6-1 of the handle 6 is far away from a heat source, and the threaded connection between the screw 9 and the collet 6-1 is relatively stable, so that the tensile property is integrally embodied.
The second scheme is as follows:
a second connecting hole (not shown in the figure) may be formed in the bottom support 6-1, and the heat insulation boards 5 are stacked on two sides of the bottom support 6-1, where the second connecting hole corresponds to the first connecting hole 8. The first connecting hole 8 is a penetrating type.
The embedded part 7-2 of the tensile member 7 is plugged into the first connecting hole 8 of the heat insulating plate 5 and the second connecting hole of the bottom support 6-1, so that the connection between the heat insulating plate 5 and the bottom support 6-1 is increased through the tensile member 7, and the contact area is increased.
The annular piece 7-1 is positioned on the outer side of the first connecting hole 8, the annular piece 7-1 is abutted against the heat insulation plate 5, the middle of the tensile piece 7 passes through the screw 9, the large end of the screw 9 is limited on the embedded part 7-2, and the threaded part of the screw 9 is connected with the bottom bracket 6-1.
The tensile principle is that the tensile member 7 enlarges the contact area, the stress of the machine body and the handle 6 is not caused to cause the tensile member 7 to generate clearance or deformation shake with the first connecting hole 8 and the second connecting hole, the screw 9 directly acts on the tensile member 7, the tensile member 7 is made of metal, the clearance between the screw 9 and the tensile member 7 is difficult to change, the collet 6-1 of the handle 6 is far away from the heat source, the threaded connection between the screw 9 and the collet 6-1 is relatively stable, and therefore, the whole body shows stronger tensile property.
In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "upper", "lower", "front", "rear", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or those that are conventionally put in use of the inventive product, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific direction, be configured and operated in a specific direction, and thus should not be construed as limiting the present utility model.
While the foregoing has been provided to illustrate the principles and embodiments of the present utility model, and while specific embodiments have been described herein, it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the principles and embodiments of the utility model, the utility model is defined in the appended claims.
Claims (6)
1. A thermal shield tensile structure for a chain saw, comprising:
the engine is embedded in the middle of the oil tank, the two sides of the oil tank are provided with heat insulation boards, the heat insulation boards and the oil tank are integrally formed, the heat insulation boards are blocked on the two sides of the engine, the heat insulation boards are provided with connecting holes I, and the connecting holes I are penetrating;
the handle is positioned at the rear of the oil tank and is provided with an integrated bottom bracket, the bottom bracket extends to the lower part of the oil tank, the bottom bracket is provided with a second connecting hole, the heat insulation plates are overlapped on the two sides of the bottom bracket, and the second connecting hole corresponds to the first connecting hole;
the tensile member comprises an embedded part and an annular piece positioned at one end of the embedded part, the embedded part is plugged into a first connecting hole of the heat insulation board and a second connecting hole of the collet, the annular piece is positioned at the outer side of the first connecting hole and leans against the heat insulation board, the tensile member passes through a screw in the middle, the big end of the screw is limited on the embedded part, and the threaded part of the screw is connected with the collet.
2. The heat shield tension structure of claim 1, wherein the tension member is a metal cap structure, the ring-shaped piece is a cap peak portion of the metal cap, the embedded portion and the ring-shaped piece are integrally die-cast, and a hole is arranged in the middle of the metal cap, and the diameter of the hole is larger than the diameter of a stud of the screw and smaller than the diameter of a large end of the screw.
3. The heat shield tensile structure of a chain saw of claim 2, wherein said annular plate has a diameter greater than a diameter of said first attachment hole;
or a step is arranged in the first connecting hole, and the annular sheet is clamped on the step.
4. A thermal shield tensile structure for a chain saw, comprising:
the engine is embedded in the middle of the oil tank, the two sides of the oil tank are provided with heat insulation boards, the heat insulation boards and the oil tank are integrally formed, the heat insulation boards are blocked on the two sides of the engine, and the heat insulation boards are provided with first connecting holes;
the handle is positioned at the rear of the oil tank and is provided with an integrated collet which extends to the lower part of the oil tank, the heat insulation plates are overlapped on two sides of the collet, and the connecting holes are correspondingly arranged on two sides of the collet;
the tensile member comprises an embedded part and an annular piece positioned at one end of the embedded part, the embedded part is plugged into a first connecting hole of the heat insulation board, the annular piece is positioned at the outer side of the first connecting hole and leans against the heat insulation board, the tensile member passes through a screw in the middle, the big end of the screw is limited on the embedded part, and the threaded part of the screw is connected with the bottom bracket.
5. The heat shield tension structure of claim 4, wherein the tension member is a metal cap structure, the ring-shaped piece is a cap peak portion of the metal cap, the embedded portion and the ring-shaped piece are integrally die-cast, and a hole is arranged in the middle of the metal cap, and the diameter of the hole is larger than the diameter of a stud of the screw and smaller than the diameter of a large end of the screw.
6. The heat shield tensile structure of a chain saw of claim 5, wherein said annular plate has a diameter greater than a diameter of said first attachment hole;
or a step is arranged in the first connecting hole, and the annular sheet is clamped on the step.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320663738.0U CN219685953U (en) | 2023-03-24 | 2023-03-24 | Thermal insulation board tensile structure of chain saw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320663738.0U CN219685953U (en) | 2023-03-24 | 2023-03-24 | Thermal insulation board tensile structure of chain saw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219685953U true CN219685953U (en) | 2023-09-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320663738.0U Active CN219685953U (en) | 2023-03-24 | 2023-03-24 | Thermal insulation board tensile structure of chain saw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219685953U (en) |
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2023
- 2023-03-24 CN CN202320663738.0U patent/CN219685953U/en active Active
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