CN217814974U - Sealing diaphragm structure of fuel pump of carburetor - Google Patents
Sealing diaphragm structure of fuel pump of carburetor Download PDFInfo
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- CN217814974U CN217814974U CN202221236436.7U CN202221236436U CN217814974U CN 217814974 U CN217814974 U CN 217814974U CN 202221236436 U CN202221236436 U CN 202221236436U CN 217814974 U CN217814974 U CN 217814974U
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- fuel pump
- diaphragm
- main body
- diaphragm structure
- carburetor
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Abstract
The utility model relates to the field of motorcycle carburetors, in particular to a fuel pump sealing diaphragm structure of a carburetor, which comprises a support column and a diaphragm main body; the support column is clamped and matched with the membrane main body; a carbon fiber core column is embedded in the support column along the axis; the FRP composite material belt is embedded in the diaphragm main body along the circumferential direction. The utility model provides a sealed diaphragm structure of carburetor fuel pump can avoid sealed diaphragm structure to take place ageing deformation after long-term the use and lead to the sealing capacity to descend, guarantees the working property of fuel pump.
Description
Technical Field
The utility model relates to a motorcycle carburetor field especially relates to a sealed diaphragm structure of carburetor fuel pump.
Background
The sealing diaphragm is one of important component parts for realizing the one-way oil circuit structure of fuel pump, and the sealing diaphragm includes the diaphragm and is used for fixing the reference column on pump body baffle, and concrete structure can refer to the chinese utility model patent that application number is 201820102609.3, the name is motorcycle, fuel pump and sealing diaphragm thereof. The traditional fuel pump sealing diaphragm structure can be aged and deformed after long-term use, so that the sealing capability is reduced, and the working performance of a fuel pump is adversely affected.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the present invention provides an aging-resistant and deformation-resistant sealing diaphragm structure for a fuel pump of a carburetor.
In order to solve the technical problem, the utility model discloses a technical scheme be: a sealing diaphragm structure of a fuel pump of a carburetor comprises a support column and a diaphragm main body;
the support column is clamped and matched with the membrane main body;
a carbon fiber core column is embedded in the support column along the axis;
the FRP composite material belt is embedded in the diaphragm main body along the circumferential direction.
Furthermore, one end of the supporting column is provided with a limiting boss, the middle of the diaphragm main body is provided with a positioning hole for the other end of the supporting column to penetrate through, and the inner diameter of the positioning hole is smaller than the outer diameter of the limiting boss.
Furthermore, the outer wall of the supporting column and the inner wall of the positioning hole are both provided with a modified epoxy wear-resistant layer.
Further, the outer wall of the diaphragm main body is provided with a modified polypropylene anti-aging layer.
Furthermore, the limiting boss is provided with a hollow groove.
The beneficial effects of the utility model reside in that: the utility model provides a carburetor fuel pump seals diaphragm structure, inlays at the inside carbon fiber stem of establishing of support column, inlays at the inside annular FRP combined material area of establishing of diaphragm main part, can avoid sealed diaphragm structure to take place ageing deformation after long-term the use like this and lead to the sealing capacity to descend, guarantees the working property of fuel pump.
Drawings
Fig. 1 is a schematic structural view illustrating a sealing diaphragm structure of a fuel pump of a carburetor according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view of a carburetor fuel pump sealing diaphragm arrangement according to an embodiment of the present invention;
description of the reference symbols:
1. a support column; 11. a carbon fiber core column; 12. a limiting boss; 121. hollowing out the grooves; 2. a diaphragm main body; 21. a FRP composite tape; 22. and (6) positioning the holes.
Detailed Description
In order to explain the technical contents, the objects and the effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.
The utility model provides a sealed diaphragm structure of carburetor fuel pump uses in carburetor fuel pump structure.
Referring to fig. 1 to 2, the fuel pump sealing diaphragm structure of carburetor of the present invention includes a support pillar 1 and a diaphragm main body 2;
the support column 1 is matched with the diaphragm main body 2 in a clamping manner;
a carbon fiber core column 11 is embedded in the support column 1 along the axis;
an FRP composite material tape 21 is embedded in the diaphragm main body 2 in the circumferential direction.
From the above description, the beneficial effects of the present invention are: the utility model provides a carburetor fuel pump seals diaphragm structure, inlays at support column 1 inside and establishes carbon fiber stem 11, inlays at diaphragm main part 2 inside and establishes annular FRP combined material area 21, can avoid sealing diaphragm structure to take place ageing deformation after long-term the use like this and lead to the sealing capacity to descend, guarantees the working property of fuel pump.
In an alternative embodiment, one end of the supporting column 1 is provided with a limiting boss 12, the middle part of the diaphragm main body 2 is provided with a positioning hole 22 for the other end of the supporting column 1 to pass through, and the inner diameter of the positioning hole 22 is smaller than the outer diameter of the limiting boss 12.
As can be seen from the above description, the limiting boss 12 is used to fix the diaphragm main body 2 to block the oil hole.
In an alternative embodiment, the outer wall of the supporting column 1 and the inner wall of the positioning hole 22 are both provided with a modified epoxy wear-resistant layer.
From the above description, the modified epoxy wear-resistant layer plays a role in wear resistance and aging resistance.
In an alternative embodiment, the outer wall of the diaphragm body 2 is provided with a modified polypropylene ageing resistance layer.
From the above description, the modified polypropylene anti-aging layer plays the role of corrosion resistance and aging resistance.
In an alternative embodiment, the limiting boss 12 is provided with a hollow-out groove 121.
As can be seen from the above description, the hollow-out grooves 121 serve to save material and reduce weight.
Referring to fig. 1 and fig. 2, a first embodiment of the present invention is: a carburetor fuel pump sealing diaphragm structure comprises a support pillar 1 and a diaphragm main body 2;
the support column 1 is matched with the diaphragm main body 2 in a clamping manner;
a carbon fiber core column 11 is embedded in the support column 1 along the axis;
an FRP composite material tape 21 is embedded in the diaphragm main body 2 in the circumferential direction.
One end of the support column 1 is provided with a limit boss 12, the middle part of the membrane main body 2 is provided with a positioning hole 22 for the other end of the support column 1 to pass through, and the inner diameter of the positioning hole 22 is smaller than the outer diameter of the limit boss 12. The outer wall of the support column 1 and the inner wall of the positioning hole 22 are both provided with modified epoxy wear-resistant layers. The outer wall of the diaphragm main body 2 is provided with a modified polypropylene anti-aging layer. The limiting boss 12 is provided with a hollow groove 121.
To sum up, the utility model provides a carburetor fuel pump seals diaphragm structure establishes the carbon fiber stem at the inside embedding of support column, establishes annular FRP combined material area at the inside embedding of diaphragm main part, can avoid sealed diaphragm structure to take place ageing deformation after long-term the use like this and lead to the sealing capacity to descend, guarantees the working property of fuel pump.
The above mentioned is only the embodiment of the present invention, and the patent scope of the present invention is not limited thereby, and all the equivalent transformations made by the contents of the specification and the drawings, or the direct or indirect application in the related technical field, are included in the patent protection scope of the present invention.
Claims (5)
1. A carburetor fuel pump sealing diaphragm structure is characterized by comprising a support column and a diaphragm main body; the support column is clamped and matched with the diaphragm main body; a carbon fiber core column is embedded in the support column along the axis; the FRP composite material belt is embedded in the diaphragm main body along the circumferential direction.
2. The carburetor fuel pump sealing diaphragm structure of claim 1, wherein one end of the support post is provided with a limit boss, the middle portion of the diaphragm body is provided with a positioning hole for the other end of the support post to pass through, and the inner diameter of the positioning hole is smaller than the outer diameter of the limit boss.
3. The carburetor fuel pump seal diaphragm structure of claim 2, wherein the outer wall of the support post and the inner wall of the locating hole are both provided with a modified epoxy wear layer.
4. The carburetor fuel pump sealing diaphragm structure of claim 1, wherein the outer wall of the diaphragm body is provided with a modified polypropylene anti-aging layer.
5. The carburetor fuel pump seal diaphragm structure of claim 2, wherein the limit boss is provided with a hollowed-out groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221236436.7U CN217814974U (en) | 2022-05-23 | 2022-05-23 | Sealing diaphragm structure of fuel pump of carburetor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221236436.7U CN217814974U (en) | 2022-05-23 | 2022-05-23 | Sealing diaphragm structure of fuel pump of carburetor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217814974U true CN217814974U (en) | 2022-11-15 |
Family
ID=83985379
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221236436.7U Active CN217814974U (en) | 2022-05-23 | 2022-05-23 | Sealing diaphragm structure of fuel pump of carburetor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217814974U (en) |
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2022
- 2022-05-23 CN CN202221236436.7U patent/CN217814974U/en active Active
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