CN109737206B - O-shaped sealing ring of automobile fuel pump and preparation method thereof - Google Patents
O-shaped sealing ring of automobile fuel pump and preparation method thereof Download PDFInfo
- Publication number
- CN109737206B CN109737206B CN201910140012.7A CN201910140012A CN109737206B CN 109737206 B CN109737206 B CN 109737206B CN 201910140012 A CN201910140012 A CN 201910140012A CN 109737206 B CN109737206 B CN 109737206B
- Authority
- CN
- China
- Prior art keywords
- fuel pump
- dust
- sealing ring
- rubber inner
- sealing washer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Fuel-Injection Apparatus (AREA)
Abstract
The invention discloses an O-shaped sealing ring of an automobile fuel pump in the technical field of fuel pumps, which comprises a sealing ring body and a dustproof strip, wherein the dustproof strip is fixedly connected to the rear side of the sealing ring body, and the preparation method of the O-shaped sealing ring of the automobile fuel pump comprises the following steps: rubber inner circle shaping, fixed elasticity holder, injection moulding, fixed dust strip, this car fuel pump O type sealing washer, be equipped with the dust strip, can block outside dust to get into O type sealing washer installation department when the installation is used, avoid the dust to get into the wearing and tearing of O type sealing washer with higher speed of O type sealing washer, the sealing washer body adopts the multilayer design, cold-resistant oversheath has, the cold resistance of O type sealing washer has been improved greatly, make it use under cold condition, inside hoop is equipped with a plurality of elasticity holders, better resilience has, when long-term use receives the extrusion, be difficult for producing permanent deformation, can make it keep good leakproofness all the time.
Description
Technical Field
The invention relates to the technical field of fuel pumps, in particular to an O-shaped sealing ring of an automobile fuel pump and a preparation method thereof.
Background
Fuel pumps are usually composed of an electric motor, which actually works in the fuel in the pump housing, without any fear of ignition because there is nothing in the housing, the fuel lubricates and cools the fuel motor, a pressure limiter, which is located on the pressure side of the pump housing and has a passage to the inlet, and an inspection valve, which is mounted at the outlet.
The fuel pump requires a large number of seals to be installed, the most common of which is the O-ring, which is the most common mechanical design for sealing because of its low cost, simplicity of manufacture, reliable function, and simplicity of installation requirements.
When present fuel pump adopted common O type sealing washer to seal, because it does not have corresponding dustproof design, long-time back of using, outside dust gets into O type circle sealing department easily, with higher speed the wearing and tearing of O type circle, cold resistance is relatively poor simultaneously, is unsuitable to use under cold condition, and O type circle easily produces permanent deformation after using extrusion for a long time in addition, and elasticity variation influences the sealing performance in later stage.
Disclosure of Invention
The invention aims to provide an O-shaped sealing ring of an automobile fuel pump and a preparation method thereof, and aims to solve the problems that the conventional O-shaped sealing ring of the fuel pump in the background art is poor in dust resistance, poor in cold resistance and easy to generate permanent deformation.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides an automobile fuel pump O type sealing washer, includes sealing washer body and dust excluder, dust excluder fixed connection in the rear side of sealing washer body, the inboard and the outside homogeneous body shaping of dust excluder have the card strip, the sealing washer body includes the rubber inner circle, the outer wall of rubber inner circle has cup jointed and has supported the cover, evenly pegs graft in the support cover and have the elasticity holder, and the outer wall that supports the cover has cup jointed cold-resistant oversheath.
Preferably, the elastic retainer is circumferentially and equidistantly inserted into the support sleeve, and the elastic retainer is a polyamide retainer.
Preferably, the outer wall of the cold-resistant outer sheath is provided with an oil-dredging layer, and the oil-dredging layer is a Teflon oil-dredging layer.
The invention also provides a preparation method of the O-shaped sealing ring of the automobile fuel pump, which comprises the following steps:
s1: forming a rubber inner ring, mixing the fluoroether rubber raw material, extruding, vulcanizing and forming in a vulcanizing tank, and cooling and then carrying out next processing;
s2: fixing the elastic retainer, placing the rubber inner ring and the elastic retainers in an injection mold together, injecting molten polyurethane into the mold, and cooling to form a support sleeve on the outer wall of the rubber inner ring;
s3: injection molding, namely putting the rubber inner ring with the support sleeve into an injection molding die, closing the die, mixing butadiene rubber raw materials, injecting the mixed materials into a cavity of the molding die, then pressurizing and vulcanizing the mixture to form a cold-resistant outer sheath, and finally performing injection molding on the outer wall of the cold-resistant outer sheath to form a Teflon oil drainage layer in the same way;
s4: fixing the dust-proof strip, forming the dust-proof strip by adopting silicone rubber compression molding, uniformly coating a layer of cold vulcanization glue on the dust-proof strip, then pressing and attaching the dust-proof strip on the molded sealing ring body, and standing for 1-2 hours to obtain the O-shaped sealing ring of the automobile fuel pump.
Preferably, in the step S1, after the rubber inner ring is molded, a layer of p-phenylenediamine coating is coated on the outer wall of the rubber inner ring, and after the rubber inner ring is cooled and solidified, the next operation is performed.
Preferably, the temperature of the injection molding in the step S3 is controlled within the range of 220-230 ℃, and the temperature is kept for 20-40 minutes after the molding.
Compared with the prior art, the invention has the beneficial effects that: this automobile fuel pump O type sealing washer, be equipped with the dust excluder, can block outside dust and get into O type sealing washer installation department when the installation is used, avoid the dust to get into O type sealing washer with higher speed the wearing and tearing of O type sealing washer, the sealing washer body adopts the multilayer design, cold-resistant oversheath has, the cold resistance of O type sealing washer has been improved greatly, make it use under cold condition, inside hoop is equipped with a plurality of elastic retainer, better resilience has, when long-term use receives the extrusion, be difficult for producing permanent deformation, can make it keep good leakproofness all the time.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a left side cross-sectional view of the present invention;
fig. 3 is a partially enlarged view of a portion a in fig. 2.
In the figure: 100-a sealing ring body, 110-a rubber inner ring, 120-a support sleeve, 130-an elastic retainer, 140-a cold-resistant outer sheath, 150-an oil drainage layer, 200-a dust-proof strip and 210-a clamping strip.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides an O-shaped sealing ring of an automobile fuel pump and a preparation method thereof, which can prevent dust from entering the O-shaped ring to accelerate the abrasion of the O-shaped ring, have good cold resistance and are not easy to generate permanent deformation, and please refer to fig. 1 and fig. 2, wherein the O-shaped sealing ring comprises a sealing ring body 100 and a dust strip 200;
referring to fig. 3, the seal ring body 100 includes a rubber inner ring 110, a support sleeve 120 is sleeved on an outer wall of the rubber inner ring 110, an elastic retainer 130 is uniformly inserted into the support sleeve 120, a cold-resistant outer sheath 140 is sleeved on an outer wall of the support sleeve 120, the seal ring body 100 is used for being installed at a fuel pump seal position, and can be filled in a gap when being extruded during installation to play a role in sealing, the rubber inner ring 110 has good resilience, the seal ring body 100 can be attached to the seal position when being extruded, the support sleeve 120 is used for fixing the elastic retainer 130, the elastic retainer 130 is annularly fixed on the outer wall of the rubber inner ring 110, the elastic retainer 130 is a polyamide retainer, has good toughness and bending resistance, is used for keeping the overall integrity of an O-shaped seal ring, and avoiding permanent deformation when being used for a long time, the cold-resistant outer sheath 140 is made of, the cold-proof effect is achieved;
referring to fig. 1 and 2, the dust-proof strip 200 is adhered to the rear side of the seal ring body 100, the inner side and the outer side of the dust-proof strip 200 are integrally formed with a clamping strip 210, the dust-proof strip 200 is made of silicon rubber and is located on the outer side of a sealing position during installation to prevent dust from entering the sealing position, the clamping strip 210 is used for being matched with a fuel pump shell, and the clamping strip 210 is buckled in a clamping groove corresponding to the fuel pump shell and can be used for tightly pressing and fixing the body of the dust-proof strip 200 to keep tightness;
referring to fig. 3, the elastic retainers 130 are inserted into the support sleeve 120 at equal intervals in a circumferential direction, the elastic retainers 130 are polyamide retainers, the elastic retainers 130 can support the O-ring, and the polyamide retainers have good toughness and resilience.
Referring to fig. 3 again, an oil-repellent layer 150 is disposed on the outer wall of the cold-resistant outer sheath 140, the oil-repellent layer 150 is a teflon oil-repellent layer, and the oil-repellent layer 150 has oil repellency and can prevent the O-ring from being contaminated by oil stains.
The invention also provides a preparation method of the O-shaped sealing ring of the automobile fuel pump, which is characterized by comprising the following steps: the preparation method of the O-shaped sealing ring of the automobile fuel pump comprises the following steps:
s1: forming a rubber inner ring, mixing the fluoroether rubber raw material, extruding, vulcanizing and forming in a vulcanizing tank, and cooling and then carrying out next processing;
s2: fixing the elastic retainer, placing the rubber inner ring and the elastic retainers in an injection mold together, injecting molten polyurethane into the mold, and cooling to form a support sleeve on the outer wall of the rubber inner ring;
s3: injection molding, namely putting the rubber inner ring with the support sleeve into an injection molding die, closing the die, mixing butadiene rubber raw materials, injecting the mixed materials into a cavity of the molding die, then pressurizing and vulcanizing the mixture to form a cold-resistant outer sheath, and finally performing injection molding on the outer wall of the cold-resistant outer sheath to form a Teflon oil drainage layer in the same way;
s4: fixing the dust-proof strip, forming the dust-proof strip by adopting silicone rubber compression molding, uniformly coating a layer of cold vulcanization glue on the dust-proof strip, then pressing and attaching the dust-proof strip on the molded sealing ring body, and standing for 1-2 hours to obtain the O-shaped sealing ring of the automobile fuel pump.
And step S1, coating a p-phenylenediamine coating on the outer wall of the rubber inner ring after the rubber inner ring is molded, cooling and solidifying the rubber inner ring, and then carrying out the next operation, wherein the p-phenylenediamine coating is an anti-aging agent and is used for preventing the rubber inner ring from aging, the injection molding temperature in step S3 is controlled within the range of 220-230 ℃, the temperature is kept for 20-40 minutes after molding, and the molding temperature is controlled to prevent the material from being damaged and denatured at high temperature.
While the invention has been described above with reference to an embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, the various features of the embodiments disclosed herein may be used in any combination, provided that there is no structural conflict, and the combinations are not exhaustively described in this specification merely for the sake of brevity and conservation of resources. Therefore, it is intended that the invention not be limited to the particular embodiments disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.
Claims (6)
1. The utility model provides an automobile fuel pump O type sealing washer which characterized in that: including sealing washer body (100) and dust excluder (200), dust excluder (200) fixed connection in the rear side of sealing washer body (100), the inboard and the equal integrated into one piece in the outside of dust excluder (200) have card strip (210), sealing washer body (100) are including rubber inner circle (110), the outer wall of rubber inner circle (110) has cup jointed and has supported cover (120), evenly pegs graft in supporting cover (120) and have elastic holder (130), and the outer wall of supporting cover (120) has cup jointed cold-resistant oversheath (140).
2. The O-ring seal of an automotive fuel pump of claim 1, wherein: the elastic retainer (130) is inserted into the support sleeve (120) in an annular and equidistant mode, and the elastic retainer (130) is a polyamide retainer.
3. The O-ring seal of an automotive fuel pump of claim 1, wherein: the outer wall of the cold-resistant outer sheath (140) is provided with an oil-dredging layer (150), and the oil-dredging layer (150) is a Teflon oil-dredging layer.
4. The preparation method of the O-shaped sealing ring of the automobile fuel pump is characterized by comprising the following steps of: the preparation method of the O-shaped sealing ring of the automobile fuel pump comprises the following steps:
s1: forming a rubber inner ring, mixing the fluoroether rubber raw material, extruding, vulcanizing and forming in a vulcanizing tank, and cooling and then carrying out next processing;
s2: fixing the elastic retainer, placing the rubber inner ring and the elastic retainers in an injection mold together, injecting molten polyurethane into the mold, and cooling to form a support sleeve on the outer wall of the rubber inner ring;
s3: injection molding, namely putting the rubber inner ring with the support sleeve into an injection molding die, closing the die, mixing butadiene rubber raw materials, injecting the mixed materials into a cavity of the molding die, then pressurizing and vulcanizing the mixture to form a cold-resistant outer sheath, and finally performing injection molding on the outer wall of the cold-resistant outer sheath to form a Teflon oil drainage layer in the same way;
s4: fixing the dust-proof strip, forming the dust-proof strip by adopting silicone rubber compression molding, uniformly coating a layer of cold vulcanization glue on the dust-proof strip, then pressing and attaching the dust-proof strip on the molded sealing ring body, and standing for 1-2 hours to obtain the O-shaped sealing ring of the automobile fuel pump.
5. The method for preparing the O-shaped sealing ring of the automobile fuel pump according to claim 4, wherein the method comprises the following steps: and in the step S1, after the rubber inner ring is molded, a layer of p-phenylenediamine coating is coated on the outer wall of the rubber inner ring, and the next operation is carried out after the rubber inner ring is cooled and solidified.
6. The method for preparing the O-shaped sealing ring of the automobile fuel pump according to claim 4, wherein the method comprises the following steps: the temperature of the injection molding in the step S3 is controlled within the range of 220-230 ℃, and the temperature is kept for 20-40 minutes after the molding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910140012.7A CN109737206B (en) | 2019-02-26 | 2019-02-26 | O-shaped sealing ring of automobile fuel pump and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910140012.7A CN109737206B (en) | 2019-02-26 | 2019-02-26 | O-shaped sealing ring of automobile fuel pump and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109737206A CN109737206A (en) | 2019-05-10 |
| CN109737206B true CN109737206B (en) | 2020-02-11 |
Family
ID=66368375
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910140012.7A Active CN109737206B (en) | 2019-02-26 | 2019-02-26 | O-shaped sealing ring of automobile fuel pump and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109737206B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110497578A (en) * | 2019-07-05 | 2019-11-26 | 上海唯万密封科技有限公司 | A kind of combination process of polyurethane and polytetrafluoroethylene (PTFE) |
| CN111673954B (en) * | 2020-06-18 | 2022-12-16 | 北京通嘉鼎元科技有限公司 | Machining method of sealing element, sealing element and vacuum pump |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201078471Y (en) * | 2007-07-21 | 2008-06-25 | 倪静丰 | Composite O-shaped ring |
| CN202176711U (en) * | 2011-09-06 | 2012-03-28 | 金坛市德博密封技术有限公司 | O-type sealing ring |
| CN103511627A (en) * | 2013-09-29 | 2014-01-15 | 无锡市晋业航空安全设备有限公司 | High-temperature resistant fabric reinforcing layer rubber seal ring for helicopter and manufacturing process thereof |
| CN103867717A (en) * | 2014-04-09 | 2014-06-18 | 苏州市相城区明达复合材料厂 | Extensible hollow sealing ring |
| CN206221117U (en) * | 2016-11-28 | 2017-06-06 | 江门市大长江集团有限公司 | Fuel oil pump packing structure and cart |
| CN206816822U (en) * | 2017-03-28 | 2017-12-29 | 咸阳海龙密封复合材料有限公司 | The O-shaped composite sealing ring of embedded with spring for axial Butt Assembling |
| CN107850214A (en) * | 2015-07-07 | 2018-03-27 | W.L.戈尔有限公司 | Lip ring |
-
2019
- 2019-02-26 CN CN201910140012.7A patent/CN109737206B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201078471Y (en) * | 2007-07-21 | 2008-06-25 | 倪静丰 | Composite O-shaped ring |
| CN202176711U (en) * | 2011-09-06 | 2012-03-28 | 金坛市德博密封技术有限公司 | O-type sealing ring |
| CN103511627A (en) * | 2013-09-29 | 2014-01-15 | 无锡市晋业航空安全设备有限公司 | High-temperature resistant fabric reinforcing layer rubber seal ring for helicopter and manufacturing process thereof |
| CN103867717A (en) * | 2014-04-09 | 2014-06-18 | 苏州市相城区明达复合材料厂 | Extensible hollow sealing ring |
| CN107850214A (en) * | 2015-07-07 | 2018-03-27 | W.L.戈尔有限公司 | Lip ring |
| CN206221117U (en) * | 2016-11-28 | 2017-06-06 | 江门市大长江集团有限公司 | Fuel oil pump packing structure and cart |
| CN206816822U (en) * | 2017-03-28 | 2017-12-29 | 咸阳海龙密封复合材料有限公司 | The O-shaped composite sealing ring of embedded with spring for axial Butt Assembling |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109737206A (en) | 2019-05-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109737206B (en) | O-shaped sealing ring of automobile fuel pump and preparation method thereof | |
| US4839122A (en) | Reaction injection molding of window gasket | |
| CA1259090A (en) | Preformed window assembly and method of making the same | |
| US6660206B1 (en) | Method of manufacturing a sealing device | |
| KR101923790B1 (en) | Method for manufacturing vehicle window component and vehicle window component | |
| US10293531B2 (en) | Method for manufacturing sealing device | |
| CN104995034A (en) | Tire, tire manufacturing device, and tire manufacturing method | |
| JP2010012829A (en) | Tire-rim assembly of pneumatic tire | |
| CN107989920B (en) | Clutch master cylinder | |
| CN110168261A (en) | The compression vulcanization forming metal mold of rolling bearing sealing element and the manufacturing method of rolling bearing sealing element | |
| CN105189142A (en) | Tire | |
| JP2931009B2 (en) | Sealing device and method of manufacturing sealing device | |
| CN111806567B (en) | Roof connection system and method | |
| TW201827875A (en) | Lens structure and method of manufacturing the same | |
| CN112123803B (en) | Sensor cover and manufacturing method thereof | |
| JPH0469487B2 (en) | ||
| CN103624944B (en) | Cooling jacket | |
| SE2050687A1 (en) | Dust proof sleeve | |
| CN209839149U (en) | Combined type sealing washer | |
| CN221880227U (en) | Anti-drop axial seal assembly | |
| CN218326791U (en) | Water collecting and distributing device water pipe connecting piece formed by sealing metal piece and plastic piece | |
| CN214605423U (en) | Portable silica gel cover | |
| CN213768216U (en) | Outer end cover of vehicle object shielding curtain | |
| CN210132793U (en) | Base die for processing pattern blocks | |
| CN210014010U (en) | Lip-shaped sealing ring taking thermoplastic material as support |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 233100 south of Fengxiang Avenue, Linhuaiguan, Fengyang County, Chuzhou City, Anhui Province Patentee after: Anhui Walding Sealing Industry Co.,Ltd. Address before: 233100 south of Fengxiang Avenue, Linhuaiguan, Fengyang County, Chuzhou City, Anhui Province Patentee before: ANHUI WOERDING SEALING INDUSTRY Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |