CN209305348U - A kind of plastic fuel tank - Google Patents
A kind of plastic fuel tank Download PDFInfo
- Publication number
- CN209305348U CN209305348U CN201822188073.4U CN201822188073U CN209305348U CN 209305348 U CN209305348 U CN 209305348U CN 201822188073 U CN201822188073 U CN 201822188073U CN 209305348 U CN209305348 U CN 209305348U
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- China
- Prior art keywords
- plastic
- mounting seat
- rubber bush
- screw thread
- fuel tank
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Abstract
The utility model relates to technical field of automobile parts, disclose a kind of plastic fuel tank, the oil tank body including plastics, and oil tank body is equipped with pouring orifice, oil-feed port and sewage draining exit；Plastic mounting seat is equipped at sewage draining exit, plastic mounting seat is equipped with internal screw thread, it is connected with Plastic cap on the plastic mounting seat, the outer wall of the Plastic cap bar portion is equipped with rubber bush, which is equipped with the external screw thread being interference fitted with internal screw thread on plastic mounting seat；Plastic cap is connect by the external screw thread on rubber bush with the internal screw thread on plastic mounting seat.Mounting base and plug are made of plastics in the utility model, at low cost and will not get rusty；And Plastic cap is connect by the external screw thread on rubber bush with the internal screw thread on plastic mounting seat, and the sealing of sewage draining exit is realized by rubber bush, and rubber bush has certain deformability, and sealing effect is good；It is good that furthermore rubber bush with plastic mounting seat is threadedly coupled self-locking effect.
Description
Technical field
The utility model relates to technical field of automobile parts, and in particular to a kind of plastic fuel tank.
Background technique
In automobile industry, fuel tank need to be used to contain the fuel oils such as diesel oil or gasoline.Due to diesel oil and some vapour inferior
Some impurity can be contained in oil, after fuel tank long-time use, need for the impurity of tank bottoms to be discharged.
With the development of the times, plastic fuel tank because it is light-weight, be not easy to get rusty, the development cycle is short the advantages that, and it can have
Effect prevents oily infiltration, can prevent fuel tank explosion in fuel tank high temperature, have the advantages that better security and stability, thus plastic oil
Case gradually replaces metallic oil tank.Metal installation base is welded at the sewage draining exit of oil tank body lower part by metallic oil tank, then in metal
Metal plug is threadedly coupled in mounting base, the sewage draining exit on fuel tank can be opened by screwing out metal plug, and impurity is discharged.But
Such metal installation base is directly welded at the mode on oil tank body not to be suitable for plastic fuel tank, welding also will appear oil reluctantly
The phenomenon that bavin Water Oil Or Gas in case is infiltrated by weld seam.
Utility model content
The utility model is intended to provide a kind of plastic fuel tank, using the connection type of plastic mounting seat and Plastic cap, at
This is low and will not get rusty.
In order to achieve the above objectives, the utility model adopts the following technical solution: a kind of plastic fuel tank, the fuel tank including plastics
Ontology, oil tank body are equipped with pouring orifice, oil-feed port and sewage draining exit；Plastic mounting seat is equipped at sewage draining exit, on plastic mounting seat
Equipped with internal screw thread, internal screw thread on plastic mounting seat and oil tank body integrated injection molding and plastic mounting seat also with oil tank body
Integrated injection molding；Be connected with Plastic cap on the plastic mounting seat, which includes head and bar portion, bar portion it is outer
Wall is equipped with rubber bush, which is equipped with the external screw thread being interference fitted with internal screw thread on plastic mounting seat；Plastics are stifled
Head is connect by the external screw thread on rubber bush with the internal screw thread on plastic mounting seat.
In above-mentioned technical proposal, pouring orifice is used for fuel up, such as gasoline or diesel oil；Oil-feed port is used for fuel tank sheet
Intracorporal fuel oil is conveyed to engine；Sewage draining exit is used to for the impurity in oil tank body being discharged.Mounting base and plug are by plastics
It is made, it is at low cost and will not get rusty；And Plastic cap passes through the interior spiral shell on the external screw thread and plastic mounting seat on rubber bush
The sealing of sewage draining exit is realized in line connection by rubber bush, and rubber bush has certain deformability, and sealing effect is good.Modeling
Expect that fuel oil is housed in fuel tank, fuel oil has sewage draining exit certain hydraulic coupling, passes through unthreaded hole compared to rubber bush and plastic mounting seat
The interference connection type of light wall, it is good that rubber bush with plastic mounting seat is threadedly coupled self-locking effect.Contain the plastics of vehicle fuel
Fuel tank volume is larger, and machine adds internal screw thread difficulty larger on plastic mounting seat, although the precision of integrally formed internal screw thread
It is poor, but it cooperates with rubber bush, and the tolerance of rubber bush is good, the sealing effect between Plastic cap and plastic mounting seat
It is good.
Further, the connection type of rubber bush and Plastic cap is glue sticking, is bolted or connects and fixes.Gluing
It is stronger to connect fixation；It is bolted, is clamped easy to disassemble, after rubber bush ageing failure, be conveniently replaceable rubber bush.
Further, rubber bush is connected and fixed with Plastic cap, and the inner wall of rubber bush is equipped with several axial card slots,
The outer wall of Plastic cap bar portion is equipped with several pillars with card slot interference fit.Rubber bush passes through card slot and Plastic cap
On pillar connect and fix.
Further, annular groove there are two being set on the outer wall of Plastic cap bar portion；Rubber bush is equipped with to be distinguished with two annular grooves
The first rib and the second rib of cooperation, the first rib and the second rib are fastened on respectively in two annular grooves.
First rib is set and the second rib is fastened on respectively in two annular grooves, so as to improve rubber bush and Plastic cap
Axial restraint effect, avoid precession, screw out Plastic cap during, rubber bush axial float.
Further, the annular groove with the cooperation of the second rib is located at the head of Plastic cap and the junction of bar portion, the second rib
Positioned at rubber bush end and radially extend outwardly, have extension, the extension be pressed on plastic mounting seat with
Between Plastic cap head.The sealing effect of the Plastic cap Yu plastic mounting seat is further increased with this.
Further, the height of oil-feed port is higher than the height of sewage draining exit.Thus it when giving engine oil, will not will be deposited in
The impurity of oil tank body bottom transfers out.
Further, rubber bush is made of corrosion resistant rubber.Long service life.
The beneficial effects of the utility model are as follows:
(1) mounting base and plug are made of plastics；Zinc-plated metal installation base and metal plug can be because of multiple precession, rotation
So that zinc coat is fallen off out causes to get rusty, and can avoid such problem using plastic mounting seat and Plastic cap；Compared to stainless steel
Metal installation base and stainless steel metal plug, plastic mounting seat and Plastic cap can reduce cost.
(2) Plastic cap is connect by the external screw thread on rubber bush with the internal screw thread on plastic mounting seat, by rubber sleeve
Cylinder realizes the sealing at sewage draining exit, and rubber has certain deformability, so that the sealing structure effect is good；And rubber bush
It is threadedly coupled with plastic mounting seat, multiple precession screws out Plastic cap, and the internal screw thread abrasion on plastic mounting seat is small, uses the longevity
Life length；It is good that furthermore rubber bush with plastic mounting seat is threadedly coupled self-locking effect.
(3) internal screw thread on plastic mounting seat and oil tank body integrated injection molding, contain the plastic fuel tank of vehicle fuel
Volume is larger, and machine adds internal screw thread difficulty larger on plastic mounting seat, although the precision of integrally formed internal screw thread is poor, its
Cooperate with rubber bush, the tolerance of rubber bush is good, and the sealing effect between Plastic cap and plastic mounting seat is good.
Detailed description of the invention
Fig. 1 is the external structure schematic diagram of the utility model embodiment.
Fig. 2 is partial section enlarged view at the A in Fig. 1.
Specific embodiment
The utility model is described in further detail below by specific embodiment:
Appended drawing reference in Figure of description includes: oil tank body 1, oil-feed port 2, pouring orifice 3, sewage draining exit 4, plastic mounting
Seat 5, Plastic cap 6, rubber bush 7, the first rib 71, the second rib 72, extension 73.
Embodiment one
The present embodiment is basic as shown in Figure 1, a kind of plastic fuel tank, the oil tank body 1 including plastics, sets on oil tank body 1
There are pouring orifice 3, oil-feed port 2 and sewage draining exit 4.Pouring orifice 3 is located at the top of oil tank body 1, and oil-feed port 2 and sewage draining exit 4 are located at oil
On the side wall of case ontology 1, and the height of oil-feed port 2 is higher than the height of sewage draining exit 4.The specific structure and fuel tank of oil tank body 1
The devices such as the air cleaner, the liquid level sensor that set on ontology 1 are not the inventive points of the utility model, and details are not described herein.
In conjunction with Fig. 2 it is found that being equipped with and the integrally formed plastic mounting seat 5 of oil tank body 1, the plastic mounting at sewage draining exit 4
Seat 5 is equipped with internal screw thread, which can also be used mach mode and be processed into 1 integrated injection molding of oil tank body
Type.Plastic cap 6 is connected on plastic mounting seat 5, which includes head and bar portion, and the outer wall of bar portion is equipped with
Corrosion resistant rubber bush 7, the connection type of rubber bush 7 and Plastic cap 6 can be bolted, glue sticking or clamping
Fixed, the present embodiment preferably connects and fixes.The specific snap fit of rubber bush 7 and Plastic cap 6 are as follows: rubber bush 7 it is interior
Wall is equipped with several axial card slots, and the outer wall of Plastic cap 6 is equipped with several pillars with card slot interference fit, rubber sleeve
Cylinder 7 is connected and fixed by card slot and the pillar on Plastic cap 6.The rubber bush 7 is equipped with and internal screw thread on plastic mounting seat 5
The external screw thread of interference fit；Plastic cap 6 is removable by the external screw thread on rubber bush 7 and the internal screw thread on plastic mounting seat 5
Unload connection.The end (being located at one end inside oil tank body) of the rubber bush 7 is additionally provided with chamfering, convenient for screwing in Plastic cap
6。
As shown in Fig. 2, setting on the outer wall of 6 bar portion of Plastic cap, there are two annular grooves；Rubber bush 7 is equipped with and two annular grooves
The first rib 71 and the second rib 72 being respectively cooperating with, the first rib 71 and the second rib 72 are fastened on respectively in two annular grooves.
First rib 71 is set and the second rib 72 improves the axial restraint effect of rubber bush 7 and Plastic cap 6, avoids precession, rotation
Out during Plastic cap 6,7 axial float of rubber bush.It is located at the head of Plastic cap 6 with the annular groove of the second rib 72 cooperation
With the junction of bar portion, the second rib 72 is located at the end of rubber bush 7 and radially extends outwardly, and has extension
73, which is pressed between 6 head of plastic mounting seat 5 and Plastic cap；The Plastic cap 6 is further increased with this
Sealing effect.It is preferred that the first rib 71 and the second rib 72 and 7 integrated injection molding of rubber bush.
Embodiment two
The present embodiment with embodiment one the difference is that: plastic mounting seat 5 it is seperated with oil tank body 1 design, plastics
The affixed mode that seals that sweat soldering can be used in mounting base 5 links together with oil tank body 1.Such mode heating time
It is long, and there is the risk of leakage in the commissure of sweat soldering, once leakage is difficult to sweat soldering again.
Above-described is only preferred embodiments of the present invention, it is noted that for those skilled in the art
For, without departing from the concept of the premise utility, several modifications and improvements can also be made, these also should be considered as this
The protection scope of utility model, these all will not influence the effect and patent practicability of the utility model implementation.This is practical new
Technology, shape, the construction portion of the omitted description of type are well-known technique.
Claims (7)
1. a kind of plastic fuel tank, the oil tank body including plastics, oil tank body are equipped with pouring orifice, oil-feed port and sewage draining exit；Its
It is characterized in that: being equipped with plastic mounting seat at the sewage draining exit, plastic mounting seat is equipped with internal screw thread, the plastic mounting seat and oil
Internal screw thread on case ontology integrated injection molding and plastic mounting seat also with oil tank body integrated injection molding；The plastic mounting seat
On be connected with Plastic cap, which includes head and bar portion, and the outer wall of bar portion is equipped with rubber bush, the rubber sleeve
Cylinder is equipped with the external screw thread being interference fitted with internal screw thread on plastic mounting seat；Plastic cap by external screw thread on rubber bush with
Internal screw thread connection on plastic mounting seat.
2. a kind of plastic fuel tank according to claim 1, it is characterised in that: the connection of the rubber bush and Plastic cap
Mode is glue sticking, is bolted or connects and fixes.
3. a kind of plastic fuel tank according to claim 2, it is characterised in that: the rubber bush and Plastic cap clamping are solid
Fixed, the inner wall of rubber bush is equipped with several axial card slots, and the outer wall of Plastic cap bar portion is equipped with several and card slot mistake
It is full of the pillar of cooperation.
4. a kind of plastic fuel tank according to claim 3, it is characterised in that: the outer wall of the Plastic cap bar portion is equipped with
Two annular grooves；The rubber bush is equipped with the first rib and the second rib that are respectively cooperating with two annular grooves, the first rib and
Second rib is fastened on respectively in two annular grooves.
5. a kind of plastic fuel tank according to claim 4, it is characterised in that: the annular groove with second rib cooperation
Positioned at the head of the Plastic cap and the junction of bar portion, second rib is located at the end of rubber bush and radially side
To extending outwardly, there is extension, which is pressed between the plastic mounting seat and Plastic cap head.
6. a kind of plastic fuel tank according to any one of claims 1 to 5, it is characterised in that: the height of the oil-feed port
Higher than the height of the sewage draining exit.
7. a kind of plastic fuel tank according to any one of claims 1 to 5, it is characterised in that: the rubber bush is by resistance to
The rubber of corrosion is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822188073.4U CN209305348U (en) | 2018-12-25 | 2018-12-25 | A kind of plastic fuel tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822188073.4U CN209305348U (en) | 2018-12-25 | 2018-12-25 | A kind of plastic fuel tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209305348U true CN209305348U (en) | 2019-08-27 |
Family
ID=67678726
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822188073.4U Active CN209305348U (en) | 2018-12-25 | 2018-12-25 | A kind of plastic fuel tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209305348U (en) |
-
2018
- 2018-12-25 CN CN201822188073.4U patent/CN209305348U/en active Active
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| GR01 | Patent grant |