CN208041125U - Motorcycle, fuel pump and its sealing diaphragm - Google Patents
Motorcycle, fuel pump and its sealing diaphragm Download PDFInfo
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- CN208041125U CN208041125U CN201820102609.3U CN201820102609U CN208041125U CN 208041125 U CN208041125 U CN 208041125U CN 201820102609 U CN201820102609 U CN 201820102609U CN 208041125 U CN208041125 U CN 208041125U
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- strengthening layer
- sealing diaphragm
- bearing surface
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Abstract
The utility model discloses a kind of motorcycle, fuel pump and its sealing diaphragms, the sealing diaphragm includes elastic sealed body and strengthening layer, the elastic sealed body includes the pressure-bearing surface being oppositely arranged and compresses face, the elastic sealed body is equipped with through the pressure-bearing surface and the installation through-hole for compressing face setting, and the strengthening layer is located in the pressure-bearing surface and described compresses between face；It is equipped between the first sealant and/or the strengthening layer and the lateral wall of the elastic sealed body between the strengthening layer and the madial wall of the installation through-hole and is equipped with the second sealant.The sealing diaphragm can effectively avoid fuel oil from being in direct contact with strengthening layer and cause permeability phenomenon, improve the reliability of fuel pump and the vehicle that rubs.
Description
Technical field
The utility model is related to fuel pump technical field of sealing technology, more particularly to a kind of motorcycle, fuel pump and its sealing
Diaphragm.
Background technology
The sealing diaphragm that the sealing structure of fuel pump need to often be used at present, the sealing diaphragm are to improve intensity and durability,
Generally it can increase base fabric structure in elastic layer middle layer.
The through-hole passed through for support column is offered in the middle part of the fuel pump sealing diaphragm of transmission, fixed plate fixing seal is used in combination
Diaphragm, this structure have the following problems：If support column and fixed plate cooperation precision controlling are bad, between support column and fixed plate just
Gap is will produce, the fuel oil in cavity will be contacted by the base fabric of gap and diaphragm middle layer, and base fabric does not have sealing and makees
With fuel oil will be penetrated by base fabric outside cavity, and permeability phenomenon is caused；It penetrates into base fabric when fuel oil simultaneously, rubber can be made
Piece and the cementability of base fabric decline, resistance to that sheet rubber may long afterwards removed with base fabric and causes sheet rubber damaged.
Invention content
Based on this, it is necessary to which providing a kind of motorcycle, fuel pump and its sealing diaphragm, the sealing diaphragm can effectively avoid
Fuel oil is in direct contact with strengthening layer and causes permeability phenomenon, improves the reliability of fuel pump and the vehicle that rubs.
Its technical solution is as follows：
On the one hand, a kind of sealing diaphragm, including elastic sealed body and strengthening layer are provided in the present embodiment, the elasticity is close
Envelope body includes the pressure-bearing surface being oppositely arranged and compresses face, and the elastic sealed body is equipped with through the pressure-bearing surface and described compresses face
The installation through-hole of setting, the strengthening layer are located in the pressure-bearing surface and described compress between face；The madial wall of the strengthening layer
Lateral wall and the elasticity that the first sealant and/or the strengthening layer are equipped between the madial wall of the installation through-hole are close
It seals between the lateral wall of body equipped with the second sealant.
When above-mentioned sealing diaphragm is applied in fuel pump, the sealing diaphragm is installed by the installation through-hole in the branch
On the dagger and face that compresses offsets with the support column, and the fixed plate is interference fitted with the support column and the fixation
Plate offsets with the pressure-bearing surface；Simultaneously by the way that the first sealant and/or the second sealant is arranged, even if support column and fixed plate are matched
It is bad to close precision controlling, gap is just will produce between support column and fixed plate, the fuel oil in cavity will not be past by strengthening layer
Outer permeability.Specifically, the madial wall (strengthening layer is equipped with through-hole at this time) and installation through-hole in strengthening layer is arranged in the first sealant
Madial wall between, fuel oil can also be avoided to penetrate into strengthening layer, make the cementability between elastic sealed body and strengthening layer
Decline, and then the service life of sealing diaphragm can be improved.
Technical solution is illustrated further below：
The elastic sealed body is elastic rubbery body in one of the embodiments, and the strengthening layer is base cloth layer.It is convenient for
Manufacture reduces production cost
First sealant is the first sealed colloid in one of the embodiments, and/or second sealant is
Second sealed colloid.And then using the first sealed colloid or and the second sealed colloid can not only prevent fuel oil from exosmosing, but also can make
Enhance the bonding strength of elastic sealed body for connector (when manufacture, can be with elastic packing body by integral forming), improves diaphragm seal
The service life of piece.
In one of the embodiments, the strengthening layer be equipped with it is multiple outwardly protrude raised and/or multiple set to the concave
Recess portion.And then the external surface area of strengthening layer can be expanded by the way that multiple protrusions or recess portion is arranged, and then in limited size
In range, increases the contact area of strengthening layer and elastic sealed body, keep strengthening layer bonding with elastic sealing layer more firm.
The face that compresses is equipped with the annular groove to be formed that sets to the concave in one of the embodiments,.
The installation through-hole includes first through hole and the second through-hole in one of the embodiments, and the first through hole is leaned on
The nearly pressure-bearing surface setting, second through-hole compress face setting close to described, and the diameter of the first through hole is less than described the
The diameter of two through-holes.
The end of the madial wall of second through-hole is equipped with introduction part in one of the embodiments,.And then it is led using this
Enter portion, installation is imported on the support columns convenient for sealing diaphragm.
On the other hand, the present embodiment additionally provides a kind of fuel pump, including above-mentioned sealing diaphragm, further include support column and
Fixed plate, the sealing diaphragm are installed by the installation through-hole on the support column and described compressing face and the support
Column offsets, and the fixed plate is interference fitted with the support column and the fixed plate offsets with the pressure-bearing surface.
Above-mentioned sealing diaphragm is utilized in the fuel pump, can effectively reduce permeability phenomenon, improves the workability of fuel pump
Energy and reliability.
Yet another aspect, the present embodiment additionally provide a kind of motorcycle, including above-mentioned fuel pump.The motorcycle uses
Fuel pump is stated, the reliability of motorcycle is further improved, reduces the failure rate of motorcycle.
Description of the drawings
Fig. 1 is the half-section diagram that diaphragm is sealed in one embodiment of the utility model；
Fig. 2 is the half-section diagram that diaphragm is sealed in another embodiment of the utility model；
Fig. 3 is the half-section diagram that diaphragm is sealed in the utility model another embodiment；
Fig. 4 is the partial schematic sectional view of one embodiment intermediate fuel oil of the utility model pump.
Reference sign：
100, diaphragm is sealed, 110, elastic sealed body, 111, pressure-bearing surface, 112, compress face, 113, installation through-hole, 102, the
One through-hole, the 104, second through-hole, 106, introduction part, the 114, first sealant, the 115, second sealant, 116, annular groove,
120, strengthening layer, 200, support column, 300, fixed plate.
Specific implementation mode
It is below in conjunction with attached drawing and specifically real to make the purpose of this utility model, technical solution and advantage be more clearly understood
Mode is applied, the utility model is described in further detail.It should be understood that the specific embodiments described herein
Only to explain the utility model, the scope of protection of the utility model is not limited.
It should be noted that when element is referred to as " being fixed on ", " install in " another element, it can be directly another
On a element or there may also be elements placed in the middle.When an element is considered as " connection " another element, it can be
It is directly connected to another element or may be simultaneously present centering elements.Term as used herein " vertically ", " level
", "left", "right" and similar statement for illustrative purposes only, be not offered as being unique embodiment.
Unless otherwise defined, all of technologies and scientific terms used here by the article is led with the technology for belonging to the utility model
The normally understood meaning of technical staff in domain is identical.Terminology used in the description of the utility model herein only be
The purpose of description specific embodiment, it is not intended that in limitation the utility model.Term " and or " used herein packet
Include any and all combinations of one or more relevant Listed Items.
" first " described in the utility model, " second " do not represent specific quantity and sequence, are only used for title
It distinguishes.
As shown in Figure 1, in an embodiment of the utility model, the sealing diaphragm 100 is including elastic sealed body 110 and by force
Change layer 120, elastic sealed body 110 includes the pressure-bearing surface 111 being oppositely arranged and compresses face 112, and elastic sealed body 110, which is equipped with, to be run through
Pressure-bearing surface 111 and compress face 112 setting installation through-hole 113, strengthening layer 120 be located in pressure-bearing surface 111 and compress face 112 it
Between；120 madial wall of strengthening layer (strengthening layer is equipped with through-hole at this time) is equipped with the first sealant between the madial wall of installation through-hole 113
114。
When above-mentioned sealing diaphragm 100 is applied in fuel pump, sealing diaphragm 100 is installed by installation through-hole 113 in support
On column 200 and compress face 112 and offset with support column 200, fixed plate 300 be interference fitted with support column 200 and fixed plate 300 with
Pressure-bearing surface 111 offsets；Simultaneously by the way that the first sealant 114 is arranged, even if support column 200 and fixed plate 300 coordinate precision controlling
It is bad, gap is just will produce between support column 200 and fixed plate 300, fuel oil can also be avoided to be contacted with strengthening layer 120, prevented
Fuel oil in cavity passes through the permeability outward of strengthening layer 120；Also fuel oil is avoided to penetrate into base fabric simultaneously, makes elastic sealed body 110
Cementability between strengthening layer 120 declines, and then the service life of sealing diaphragm 100 can be improved.
As shown in Fig. 2, in another embodiment of the utility model, the sealing diaphragm 100 include elastic sealed body 110 and
Strengthening layer 120, elastic sealed body 110 include the pressure-bearing surface 111 being oppositely arranged and compress face 112, and elastic sealed body 110 is equipped with and passes through
Wear pressure-bearing surface 111 and compress face 112 setting installation through-hole 113, strengthening layer 120 be located in pressure-bearing surface 111 and compress face 112 it
Between；The second sealant 115 is equipped between the lateral wall and the lateral wall of elastic sealed body 110 of strengthening layer 120.
When above-mentioned sealing diaphragm 100 is applied in fuel pump, sealing diaphragm 100 is installed by installation through-hole 113 in support
On column 200 and compress face 112 and offset with support column 200, fixed plate 300 be interference fitted with support column 200 and fixed plate 300 with
Pressure-bearing surface 111 offsets；Simultaneously by the way that the second sealant 115 is arranged, even if support column 200 and fixed plate 300 coordinate precision controlling
It is bad, gap is just will produce between support column 200 and fixed plate 300, the fuel oil in cavity will not be by strengthening layer 120 outward
Permeability.
As shown in figure 3, in the another embodiment of the utility model, the sealing diaphragm 100 include elastic sealed body 110 with
And strengthening layer 120, elastic sealed body 110 include the pressure-bearing surface 111 being oppositely arranged and compress face 112, elastic sealed body 110 is equipped with
Through pressure-bearing surface 111 and the installation through-hole 113 of the setting of face 112 is compressed, strengthening layer 120, which is located in, pressure-bearing surface 111 and compresses face 112
Between；120 madial wall of strengthening layer (strengthening layer is equipped with through-hole at this time) is equipped with the first sealing between the madial wall of installation through-hole 113
Layer 114, and the second sealant 115 is equipped between strengthening layer 120 and the lateral wall of elastic sealed body 110.
When above-mentioned sealing diaphragm 100 is applied in fuel pump, sealing diaphragm 100 is installed by installation through-hole 113 in support
On column 200 and compress face 112 and offset with support column 200, fixed plate 300 be interference fitted with support column 200 and fixed plate 300 with
Pressure-bearing surface 111 offsets；Simultaneously by the way that the first sealant 114 and the second sealant 115 is arranged, even if support column 200 and fixed plate
300 cooperation precision controllings are bad, gap just will produce between support column 200 and fixed plate 300, the fuel oil in cavity will not lead to
Cross the permeability outward of strengthening layer 120；First sealant 114 setting simultaneously can also avoid fuel oil from penetrating into strengthening layer, make bullet
Property seal 110 and strengthening layer 120 between cementability decline, and then can be improved sealing diaphragm 100 service life.
Based on any of the above embodiments, elastic sealed body 110 is elastic rubbery body, and strengthening layer 120 is base cloth layer；
Convenient for manufacture, production cost is reduced.Further, the first sealant 114 is the first sealed colloid and/or the second sealant 115
For the second sealed colloid.And then using the first sealed colloid or and the second sealed colloid can not only prevent fuel oil from exosmosing, but also can be with
Enhance the bonding strength of elastic sealed body 110 as connector (when manufacture, can be with elastic packing body by integral forming), improves close
The service life of sealer piece 100.
In one embodiment, strengthening layer 120 be equipped with it is multiple outwardly protrude it is raised and/or multiple set to the concave it is recessed
Portion；And then the external surface area of strengthening layer 120 can be expanded by the way that multiple protrusions or recess portion is arranged, and then in limited size model
In enclosing, increases the contact area of strengthening layer 120 and elastic sealed body 110, keep strengthening layer 120 bonding with elastic sealing layer more
It is firm.
In another embodiment, the outer surface of strengthening layer 120 is equipped with multiple overhead structures.And then by the way that barb knot is arranged
Structure can also be such that strengthening layer 120 is connect with elastic sealed body 110 reliably, be not easy to take off even if fuel oil penetrates into strengthening layer 120
From.
Based on any of the above embodiments, it compresses face 112 and is equipped with the annular groove 116 to be formed that sets to the concave.
Based on any of the above embodiments, installation through-hole 113 include first through hole 102 and the second through-hole 104, first
Through-hole 102 is arranged close to pressure-bearing surface 111, and for the second through-hole 104 close to compressing the setting of face 112, the diameter of first through hole 102 is less than the
The diameter of two through-holes 104；And then coordinate convenient for being installed with support column 200, it forms stepped hole cooperation and combines, fuel oil can be reduced and oozed
Enter rate.Further, the end of the madial wall of the second through-hole 104 is equipped with introduction part 106.And then the introduction part 106 is utilized, it is convenient for
Diaphragm 100 is sealed to import on support column 200.
As shown in figure 4, the present embodiment additionally provides a kind of fuel pump, including above-mentioned sealing diaphragm 100, further include support
Column 200 and fixed plate 300, sealing diaphragm 100 by installation through-hole 113 install on support column 200 and compress face 112 with branch
Dagger 200 offsets, and fixed plate 300 is interference fitted with support column 200 and fixed plate 300 offsets with pressure-bearing surface 111.
Above-mentioned sealing diaphragm 100 is utilized in the fuel pump, can effectively reduce permeability phenomenon, improves the work of fuel pump
Performance and reliability.
The present embodiment additionally provides a kind of motorcycle, including above-mentioned fuel pump.The motorcycle uses above-mentioned fuel pump, into
One step improves the reliability of motorcycle, reduces the failure rate of motorcycle.
In addition, additionally providing a kind of manufacturing technique method of sealing diaphragm in another embodiment, include the following steps：
(1) the first elastic layer for offering first through hole is set to the first predeterminated position；
(2) strengthening layer is installed on the first elastic layer, then the second elastic layer for offering the second through-hole is set to institute
It states on strengthening layer, and second through-hole is opposite with the first through hole forms installation through-hole, makes the inside of the installation through-hole
Wall protrude the strengthening layer madial wall setting and/or the lateral wall of first elastic layer and second elastic layer it is convex
Go out the lateral wall setting of the strengthening layer；
(3) first elastic layer fixed, the strengthening layer and second elastic layer are subjected to vulcanizing treatment, made
First elastic layer and second elastic layer form elastic sealed body, the strengthening layer is located in the elastic sealed body
It is interior；And the first sealant and/or the reinforcing are formed between the madial wall of the strengthening layer and the madial wall of the installation through-hole
The second sealant is formed between the lateral wall and the lateral wall of the elastic sealed body of layer.
And then in the way of above-mentioned production technology, the manufacturing of above-mentioned sealing diaphragm is realized, when the sealing diaphragm
When applied in fuel pump, even if support column and fixed plate cooperation precision controlling are bad, it will be produced between support column and fixed plate
Raw gap, fuel oil in cavity will not pass through strengthening layer permeability outward；And then it can effectively avoid fuel oil direct with strengthening layer
It contacts and causes permeability phenomenon, improve the service life of sealing diaphragm.
Wherein in step (2), which is base cloth layer, and pre-fixed by way of bonding in the first elastic layer with
Between second elastic layer；Further, in step (3), when carrying out vulcanizing treatment, first elastic layer and the second elastic layer by
Heat mutually melts to form elastic sealed body.
Each technical characteristic of embodiment described above can be combined arbitrarily, to keep description succinct, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, it is all considered to be the range of this specification record.
Above-described embodiments merely represent several embodiments of the utility model, the description thereof is more specific and detailed,
But therefore it can not be interpreted as the limitation to utility model patent range.It should be pointed out that for the common skill of this field
For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to
The scope of protection of the utility model.Therefore, the protection domain of the utility model patent should be determined by the appended claims.
Claims (9)
1. a kind of sealing diaphragm of fuel pump, which is characterized in that including elastic sealed body and strengthening layer, the elastic sealed body
Including the pressure-bearing surface being oppositely arranged and face is compressed, the elastic sealed body is equipped with to be arranged through the pressure-bearing surface and the face that compresses
Installation through-hole, the strengthening layer is located in the pressure-bearing surface and described compresses between face；The madial wall of the strengthening layer and institute
State the lateral wall between the madial wall of installation through-hole equipped with the first sealant and/or the strengthening layer and the elastic sealed body
Lateral wall between be equipped with the second sealant.
2. sealing diaphragm according to claim 1, which is characterized in that the elastic sealed body is elastic rubbery body, described
Strengthening layer is base cloth layer.
3. sealing diaphragm according to claim 2, which is characterized in that first sealant is the first sealed colloid, or/
And second sealant is the second sealed colloid.
4. sealing diaphragm according to claim 1, which is characterized in that the strengthening layer is equipped with multiple protrusions outwardly protruded
And/or multiple recess portions to set to the concave.
5. sealing diaphragm according to claim 1, which is characterized in that the face that compresses is equipped with the annular to be formed that sets to the concave
Groove.
6. sealing diaphragm according to any one of claims 1 to 5, which is characterized in that the installation through-hole includes first logical
Hole and the second through-hole, the first through hole are arranged close to the pressure-bearing surface, and second through-hole compresses face setting, institute close to described
The diameter for stating first through hole is less than the diameter of second through-hole.
7. sealing diaphragm according to claim 6, which is characterized in that the end of the madial wall of second through-hole is equipped with and leads
Enter portion.
8. a kind of fuel pump, which is characterized in that further include support including sealing diaphragm as described in any one of claim 1 to 7
Column and fixed plate, the sealing diaphragm by the installation through-hole install on the support column and it is described compress face with it is described
Support column offsets, and the fixed plate is interference fitted with the support column and the fixed plate offsets with the pressure-bearing surface.
9. a kind of motorcycle, which is characterized in that including fuel pump as claimed in claim 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820102609.3U CN208041125U (en) | 2018-01-22 | 2018-01-22 | Motorcycle, fuel pump and its sealing diaphragm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820102609.3U CN208041125U (en) | 2018-01-22 | 2018-01-22 | Motorcycle, fuel pump and its sealing diaphragm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208041125U true CN208041125U (en) | 2018-11-02 |
Family
ID=63953844
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820102609.3U Active CN208041125U (en) | 2018-01-22 | 2018-01-22 | Motorcycle, fuel pump and its sealing diaphragm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208041125U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108061159A (en) * | 2018-01-22 | 2018-05-22 | 江门市大长江集团有限公司 | The sealing diaphragm and its manufacturing technique method of fuel pump |
-
2018
- 2018-01-22 CN CN201820102609.3U patent/CN208041125U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108061159A (en) * | 2018-01-22 | 2018-05-22 | 江门市大长江集团有限公司 | The sealing diaphragm and its manufacturing technique method of fuel pump |
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