阅读说明：本技术 一种用于塑料加油管的无盖加油盖 (a uncovered oil filler cap for plastics add oil pipe ) 是由 徐元斌 宋立佳 李春 刘鹏 于 2019-10-15 设计创作，主要内容包括：本发明公开了一种用于塑料加油管的无盖加油盖,包括塑料加油管和加油盖；加油盖包括壳体、容置在壳体内且用于引导加油枪插入壳体内部的导向机构以及设置在壳体的一端且用于引导油液进入塑料加油管内部的导流机构；壳体相对导流机构的另一端设置为开口,壳体在开口位置安装有外罩；加油盖嵌入进塑料加油管内,外罩卡扣安装在塑料加油管的外壁上；壳体在开口位置安装有堵头,通过加油枪的插拔完成堵头的打开或关闭。本发明在加油盖的开口位置通过扭簧设置有堵头,加油枪插入时挤压堵头使得堵头绕着扭簧中心旋转以打开,加油枪拔出后,扭簧复位使得堵头回到初始状态以关闭,无需拆卸加油口盖,简化加油操作,节省加油时间,方便实用。(the invention discloses a capless oil filling cover for a plastic oil filling pipe, which comprises the plastic oil filling pipe and an oil filling cover; the oil filling cover comprises a shell, a guide mechanism and a flow guide mechanism, wherein the guide mechanism is accommodated in the shell and used for guiding an oil filling gun to be inserted into the shell, and the flow guide mechanism is arranged at one end of the shell and used for guiding oil liquid to enter the plastic oil filling pipe; the other end of the shell, which is opposite to the flow guide mechanism, is provided with an opening, and the shell is provided with an outer cover at the opening position; the oil filling cover is embedded into the plastic oil filling pipe, and the outer cover is installed on the outer wall of the plastic oil filling pipe in a buckling mode; the shell is provided with a plug at the opening position, and the plug is opened or closed by plugging and unplugging the oil filling gun. According to the invention, the plug is arranged at the opening position of the oil filling cover through the torsional spring, the plug is extruded when the oil filling gun is inserted so that the plug rotates around the center of the torsional spring to be opened, and after the oil filling gun is pulled out, the torsional spring resets so that the plug returns to the initial state to be closed, so that the oil filling cover does not need to be detached, the oil filling operation is simplified, the oil filling time is saved, and the oil filling device is convenient.)

1. The utility model provides a uncovered oil filler cap for plastics oil filler pipe which characterized in that: the plastic oil filling pipe comprises a plastic oil filling pipe and an oil filling cover connected with the plastic oil filling pipe;

The oil filling cover comprises a shell, a guide mechanism and a flow guide mechanism, wherein the guide mechanism is accommodated in the shell and used for guiding an oil filling gun to be inserted into the shell, and the flow guide mechanism is arranged at one end of the shell and used for guiding oil liquid to enter the plastic oil filling pipe;

The other end of the shell, which is opposite to the flow guide mechanism, is provided with an opening, an outer cover is arranged at the opening of the shell, and a fuel gun socket is arranged on the outer cover;

The oil filling cover is embedded into the plastic oil filling pipe, and the outer cover is installed on the outer wall of the plastic oil filling pipe in a buckling mode;

The shell is provided with a plug at the opening position, and the plug is opened or closed by plugging and unplugging the oil filling gun.

2. a capless filler cap for a plastic filler tube as claimed in claim 1, wherein: the guide mechanism comprises a guide groove and a guide hole, the two ends of the guide groove are open, one end of the guide groove is open and connected with the opening of the shell, the other end of the guide groove is open and connected with the guide hole, and the guide hole is connected with the flow guide mechanism in a through mode.

3. a capless filler cap for a plastic filler tube as claimed in claim 2, wherein: the inside wall of guide way is provided with the direction muscle of axial distribution.

4. a capless filler cap for a plastic filler tube as claimed in claim 2, wherein: the flow guide mechanism comprises a flow guide pipe, the general structure of the flow guide pipe is funnel-shaped, the big end of the flow guide pipe of the funnel structure is communicated with the guide hole contained by the guide mechanism, and the small end of the flow guide pipe extends deep into the plastic oil filling pipe.

5. A capless filler cap for a plastic filler tube as claimed in claim 1, wherein: the plug is installed at the opening position of the shell through a torsion spring, and rotates around the center of the torsion spring to open or close the opening of the shell.

6. A capless filler cap for a plastic filler tube as claimed in claim 5, wherein: the end part of torsional spring is connected to one side of end cap, and the relative casing of opposite side of end cap is rotatory in order to open or close the casing, and extrusion when inserting through the nozzle makes the end cap rotatory in order to open around the torsional spring center, and after the nozzle was extracted, the torsional spring reset makes the end cap get back to initial condition in order to close.

7. a capless filler cap for a plastic filler tube as claimed in claim 1, wherein: the outer wall of the outer cover is annularly provided with a plurality of bulges, the inner side wall of each bulge is provided with a clamping groove, and the outer side wall of the plastic oil filling pipe is annularly provided with a plurality of salient points matched with the clamping grooves.

8. a capless filler cap for a plastic filler tube as claimed in claim 7, wherein: the two sides of the single salient point are symmetrically provided with a pair of limiting inclined planes, and the inner side wall of the clamping groove is symmetrically provided with a pair of limiting inclined planes matched with the limiting inclined planes.

9. a capless filler cap for a plastic filler tube as claimed in claim 1, wherein: a plurality of inner sealing rings are arranged between the plastic oil filling pipe and the oil filling cover, and an outer sealing ring is arranged between the plastic oil filling pipe and the outer cover.

Technical Field

The invention relates to the technical field of oil filling caps, in particular to a capless oil filling cap for a plastic oil filling pipe.

background

At present, the so-called detachable oil filler cap on the market needs to be separated from an oil filling pipe during oil filling, and the oil filler cap in the form has the following disadvantages: 1. the disassembly and assembly operation is required during refueling, so that the operation is inconvenient; 2. the six national regulations increasingly tighten the emission of automobiles, and when the oil filling cover is detached for filling oil, a large amount of fuel steam can be leaked into the air.

accordingly, to overcome the deficiencies and drawbacks of the background art, the present invention provides a capless filler cap for a plastic filler tube,

Disclosure of Invention

it is an object of the present invention to provide a capless filler cap for a plastic filler tube.

the invention is realized by the following technical scheme:

A capless fuel filler cap for a plastic fuel filler tube comprising a plastic fuel filler tube and a fuel filler cap connected to said plastic fuel filler tube;

the oil filling cover comprises a shell, a guide mechanism and a flow guide mechanism, wherein the guide mechanism is accommodated in the shell and used for guiding an oil filling gun to be inserted into the shell, and the flow guide mechanism is arranged at one end of the shell and used for guiding oil liquid to enter the plastic oil filling pipe;

the other end of the shell, which is opposite to the flow guide mechanism, is provided with an opening, an outer cover is arranged at the opening of the shell, and a fuel gun socket is arranged on the outer cover;

The oil filling cover is embedded into the plastic oil filling pipe, and the outer cover is installed on the outer wall of the plastic oil filling pipe in a buckling mode;

The shell is provided with a plug at the opening position, and the plug is opened or closed by plugging and unplugging the oil filling gun.

Technical scheme more than adopting, guiding mechanism includes guide way and guiding hole, the both ends opening of guide way, wherein the opening of casing is connected to the one end opening of guide way, and the other end opening through connection guiding hole of guide way, guiding hole and water conservancy diversion mechanism through connection.

Technical scheme more than adopting, the inside wall of guide way is provided with the direction muscle of axial distribution.

technical scheme more than adopting, guiding mechanism includes the honeycomb duct, the macrostructure of honeycomb duct is hourglass hopper-shaped, and the major part end through connection guiding mechanism of the honeycomb duct of funnel structure contains the guide hole, and the microcephaly end of honeycomb duct is deepened to in the plastics refuel pipe.

Technical scheme more than adopting, the end cap passes through the torsional spring and installs the open position at the casing, and the end cap is rotatory in order to open or close the opening of casing around the torsional spring center.

Technical scheme more than adopting, the tip of torsional spring is connected to one side of end cap, and the relative casing of opposite side of end cap is rotatory in order to open or close the casing, and extrusion when inserting through the nozzle makes the end cap rotatory in order to open around the torsional spring center, and after the nozzle was extracted, the torsional spring resets and makes the end cap get back to initial condition in order to close.

Technical scheme more than adopting, the outer wall annular of dustcoat is provided with a plurality of archs, singly bellied inside wall is provided with a draw-in groove, the lateral wall annular of plastics oil pipe is provided with a plurality of bumps with draw-in groove looks adaptation.

according to the technical scheme, the two sides of the single convex point are symmetrically provided with the pair of limiting inclined planes, and the inner side wall of the clamping groove is symmetrically provided with the pair of limiting inclined planes matched with the limiting inclined planes.

according to the technical scheme, a plurality of inner sealing rings are arranged between the plastic oil filling pipe and the oil filling cover, and an outer sealing ring is arranged between the plastic oil filling pipe and the outer cover.

the invention has the beneficial effects that:

1. According to the invention, the plug is arranged at the opening position of the oil filling cover through the torsional spring, when the oil filling gun is inserted, the plug is extruded to rotate around the center of the torsional spring so as to be opened, and after the oil filling gun is pulled out, the torsional spring is reset so as to enable the plug to return to the initial state so as to be closed, so that the oil filling cover does not need to be detached, the oil filling operation is simplified, the oil filling time is saved, and;

2. the plugging and unplugging of the refueling gun and the opening and closing of the plug are simultaneously performed instantly, so that compared with the prior art, the fuel steam leakage caused by the fact that the cover is opened and then the refueling gun is inserted or the reinforcing gun is pulled out and then the cover is closed can be effectively avoided, and the fuel steam amount leaked into the air during refueling is greatly reduced;

3. The plastic oil filling pipe is suitable for plastic oil filling pipes, production line production and assembly are easy to achieve, the oil filling cover is provided with the guide mechanism to guide the oil filling gun to be plugged and pulled, the guide mechanism is further arranged to guide oil to flow into the plastic oil filling pipe, and the plastic oil filling pipe is convenient and practical.

drawings

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a front view of fig. 1.

fig. 3 is a top view of fig. 1.

Fig. 4 is a schematic cross-sectional view taken along line a-a of fig. 3.

fig. 5 is an exploded view of fig. 4.

fig. 6 is a partially enlarged schematic view of the plug of the present invention.

wherein:

1. a plastic filler tube;

11. Salient points;

111. a limiting inclined plane;

2. an oil filling cap;

21. A housing;

22. a guide mechanism;

221. A guide groove;

222. A guide hole;

223. A guide rib;

23. Flow guide pipe

3. a housing;

31. a fueling gun socket;

32. a protrusion;

33. A card slot;

331. a limiting bevel edge;

4. a plug;

5. A torsion spring;

6. an inner seal ring;

7. and an outer seal ring.

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.

examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

A capless filler cap for a plastic filler tube as shown in fig. 1 to 6 comprises a plastic filler tube 1 and a filler cap 2 connected to the plastic filler tube 1;

In the present embodiment, the oil filler cap 2 includes a housing 21, a guide mechanism 22 accommodated in the housing 21 for guiding the oil filler gun to be inserted into the housing 21, and a guide mechanism provided at one end of the housing 21 for guiding oil into the interior of the plastic oil filler pipe 1;

on one hand, the guiding mechanism 22 comprises a guiding groove 221 and a guiding hole 222, wherein two ends of the guiding groove 221 are open, wherein one end of the guiding groove 221 is open and connected with the opening of the shell 21, the other end of the guiding groove 221 is open and connected with the guiding hole 222, and the guiding hole 222 is connected with the guiding mechanism;

more specifically, the guide ribs 223 axially distributed are arranged on the inner side wall of the guide groove 221, so that a better guide effect is achieved when the fuel nozzle is inserted and pulled out;

When in oil filling, the oil filling gun is inserted into the guide groove 221 from the opening of the shell 21, and the oil filling gun is inserted deeper through the guide of the guide ribs 223 axially distributed on the guide groove 221 until the gun head of the oil filling gun extends into the guide hole 222;

after the refueling is finished, an outward pulling force is applied to the refueling gun, so that the refueling gun is pulled out of the shell 21 through the guiding action of the guide rib 223 on the guide groove 221;

on the other hand, the flow guide mechanism comprises a flow guide pipe 23, the general structure of the flow guide pipe 23 is funnel-shaped, the big end of the flow guide pipe 23 with a funnel structure is communicated with a guide hole 222 contained in the guide mechanism 22, and the small end of the flow guide pipe 23 extends into the plastic oil filling pipe 1;

More specifically, the flow guide pipe 23 is arranged in a funnel shape, so that the oil is gathered to the small end of the flow guide pipe 23 for concentrated drainage, and the flow velocity of the oil can be remarkably increased.

in the embodiment, the other end of the shell 21 opposite to the flow guiding mechanism is provided with an opening, the shell is provided with an outer cover 3 at the opening position, and the outer cover 3 is provided with a fuel gun socket 31;

the oil filling cover 2 is embedded into the plastic oil filling pipe 1, and the outer cover 3 is installed on the outer wall of the plastic oil filling pipe 1 in a buckling mode;

More specifically, the outer wall of the outer cover 3 is annularly provided with a plurality of protrusions 32, the inner side wall of each protrusion 32 is provided with a clamping groove 33, the outer side wall of the plastic oil filling pipe 1 is annularly provided with a plurality of salient points 11 matched with the clamping grooves 33, and the salient points 11 of the plastic oil filling pipe 1 are clamped and fixed in the clamping grooves 33 of the outer cover 3;

Moreover, the bilateral symmetry of single bump 11 is provided with a pair of spacing inclined plane 111, and the inside wall symmetry of draw-in groove 33 is provided with a pair of spacing hypotenuse 331 with spacing inclined plane 111 looks adaptation, can have better spacing effect to draw-in groove 33 and bump 11 that are in the screens state through the cooperation of spacing inclined plane 111 and spacing hypotenuse 331, can effectively reduce the problem that draw-in groove 33 breaks away from bump 11, convenient and practical.

In the embodiment, the plug 4 is installed at the opening position of the shell 21, and the opening or closing of the plug 4 is completed by inserting and pulling the fuel gun;

More specifically, the plug 4 is installed at an opening position of the housing 21 by the torsion spring 5, and the plug 4 rotates around the center of the torsion spring 5 to open or close the opening of the housing 21;

Moreover, one side of the plug 4 is connected with the end part of the torsion spring 5, the other side of the plug 4 rotates relative to the shell 21 to open or close the shell 21, the plug 4 rotates around the center of the torsion spring 5 to open through extrusion when the fuel gun is inserted, and after the fuel gun is pulled out, the torsion spring 5 resets to enable the plug 4 to return to the initial state to close;

When in oil filling, an oil gun is inserted from an oil gun socket 31 on the outer cover 3, the oil gun extrudes the plug 4, the plug 4 rotates around the center of the torsion spring 5 to open the plug 4, the oil gun is inserted into the guide groove 221 through the opening of the shell 21 and is inserted deeper under the guidance of the guide rib 222 until the gun head of the oil gun extends into the guide hole 222, and then oil filling is started;

After oiling is finished, an outward pulling force is given to the oiling gun, so that the oiling gun is pulled out of the shell 21 under the guiding action of the guide rib 223 on the guide groove 221, and after the stress of the plug 4 disappears, the oiling gun returns to the initial state under the action of the torsion spring 5 to be closed;

Need not to dismantle the filler cap among the whole refueling process, simplify the refueling operation, save refueling time, convenient and practical, the plug of nozzle and end cap 4's switching take place simultaneously in the twinkling of an eye moreover, compare in prior art, can effectively avoid revealing because of opening the lid earlier and then inserting the nozzle or extract earlier and strengthen the rifle and then close the fuel steam that the lid leads to earlier, the fuel steam volume in the air is revealed in the significantly reduced when refueling.

In the embodiment, a plurality of inner sealing rings 6 are arranged between the plastic oil filling pipe 1 and the oil filling cover 2, an outer sealing ring 7 is arranged between the plastic oil filling pipe 1 and the outer cover 3, and the inner sealing rings 6 and the outer sealing rings 7 are arranged, so that the oil filling device has a good sealing effect.

The invention has the beneficial effects that: the plastic oil filling pipe is suitable for plastic oil filling pipes, production line production and assembly are easy to achieve, the oil filling cover is provided with the guide mechanism to guide the oil filling gun to be plugged and pulled, the guide mechanism is further arranged to guide oil to flow into the plastic oil filling pipe, and the plastic oil filling pipe is convenient and practical.

the above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.