CN212529302U

CN212529302U - Automobile fuel tank cap

Info

Publication number: CN212529302U
Application number: CN202020863243.9U
Authority: CN
Inventors: 不公告发明人
Original assignee: Zhou Xiaolian
Current assignee: Jiangsu Pusheng Automotive Parts Co.,Ltd.
Priority date: 2020-05-21
Filing date: 2020-05-21
Publication date: 2021-02-12
Anticipated expiration: 2030-05-21

Abstract

The utility model relates to the technical field of automobile accessories, and discloses an automobile fuel tank cap, which comprises a cap and a lug, wherein the lug is fixedly connected at the middle position of the bottom surface of the cap, the bottom surface of the lug is provided with a mounting groove, the opening part of the mounting groove is provided with a fixed plate, the fixed plate is connected with the bottom surface of the lug through a fixing bolt, an air pump is arranged on the fixed plate in the mounting groove, the annular groove is arranged on the surface of the lug, an annular air bag is vulcanized and connected in the annular groove, the annular air bag generates compressed air through the air pump, so that the air bag is expanded, the volume of the expanded air bag is increased, the inner side friction force of a fuel tank nozzle is increased, the gas pumped by the air pump is the gas in the fuel tank, at the moment, the inside of the fuel tank is in a negative pressure state, suction force, avoiding economic loss to the vehicle owner.

Description

Automobile fuel tank cap

Technical Field

The utility model relates to the technical field of auto-parts, specifically be an automobile fuel tank cap.

Background

The fuel tank refers to a tank for storing gasoline on an automobile. The shape is square, and the sealing performance is good because the sealing ring is made of stainless steel. There is only a small circular inlet, which is just as large as the cap of the bottle, for storage, and the tank cap is an essential accessory for closing the tank.

The oil tank of present heavy goods vehicle generally is naked setting, and the tank cap need just can be opened through the car key, and heavy goods vehicle often needs long-distance transport, and the driver parks the freight train beside the road when having a rest, and often there is lawless persons to steal the oil in the oil tank, and the oil tank cap that needs to adopt the key to open is in the same place of the face of lawless persons equipment of unblanking to bring very big economic loss to the freight car owner.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides a car fuel tank cap possesses the theftproof performance that improves petrol in the car oil tank, avoids bringing advantages such as economic loss for the car owner, has solved the problem that the background art provided.

(II) technical scheme

For the theftproof performance of the interior petrol of realization above-mentioned improvement car oil tank, avoid bringing economic loss's purpose for the car owner, the utility model provides a following technical scheme: the utility model provides an automobile fuel tank cap, includes block and lug, lug fixed connection is in the bottom surface intermediate position of block, the mounting groove has been seted up to the bottom surface of lug, the opening part of mounting groove is provided with the fixed plate, the fixed plate is connected with lug underrun fixing bolt, is located the mounting groove be provided with the air pump on the fixed plate, the gas outlet department of air pump is connected with the gas-supply pipe, the ring channel has been seted up to the week side of lug, be provided with annular air bag in the ring channel, the annular air chamber has been seted up in the annular air bag, annular air bag's inboard and ring channel inner wall vulcanize into an organic whole, the gas transmission way with the mounting groove intercommunication is seted up to the inner wall of ring.

Preferably, the outer side of the annular air bag is provided with a rubber layer, and the rubber layer and the surface of the annular air bag are vulcanized into a whole.

Preferably, a groove is formed in the middle of the upper surface of the cap, a rotating shaft is arranged in the groove, two ends of the rotating shaft are rotatably connected with the side wall of the groove, a pull ring is arranged in the groove, and the rotating shaft penetrates through the lower end of the pull ring.

Preferably, the inner side of the pull ring is provided with a buffer layer, the buffer layer is made of soft rubber materials, and the buffer layer and the inner wall of the pull ring are vulcanized into a whole.

Preferably, an electromagnetic control valve is arranged in the gas transmission channel.

Preferably, the fixing plate is provided with a plurality of vent holes penetrating up and down.

(III) advantageous effects

Compared with the prior art, the utility model discloses possess following beneficial effect:

1. this kind of car fuel tank cap, set up the ring channel through the surface at the lug, annular gasbag is connected in the ring channel vulcanization, annular gasbag passes through the air pump and produces compressed air, make the gasbag inflation, gasbag volume increase after the inflation and the inboard frictional force increase of oil tank mouth, the gas through the air pump suction is the gas in the oil tank, be the negative pressure state in the oil tank this moment, produce suction, make the fuel tank cap closely firm with being connected of oil tank, improve the security of oil tank, avoid causing economic loss for the car owner.

2. This kind of car fuel tank cap, through seting up the recess on the surface at the block, the pull ring is connected to the recess internal rotation, and the setting of pull ring is when refueling the oil tank, and the fuel tank cap of being convenient for is extracted from the oil tank mouth.

Drawings

FIG. 1 is a schematic structural view of a section of an automobile fuel tank cap according to the present invention;

fig. 2 is a schematic structural diagram at a in fig. 1.

In the figure: 1. the air pump comprises a cover cap, 2 convex blocks, 3 annular air bags, 4 electromagnetic control valves, 5 air pipes, 6 annular air cavities, 7 mounting grooves, 8 air pumps, 9 fixing plates, 10 grooves, 11 rotating shafts, 12 buffer layers, 13 pull rings, 14 annular grooves, 15 air conveying pipes and 16 rubber layers.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1

Referring to fig. 1-2, an automobile fuel tank cap includes a cap 1 and a protrusion 2, a groove 10 is formed in a middle position of an upper surface of the cap 1, a rotating shaft 11 is disposed in the groove 10, two ends of the rotating shaft 11 are rotatably connected with sidewalls of the groove 10, a pull ring 13 is disposed in the groove 10, a buffer layer 12 is disposed on an inner side of the pull ring 13, the buffer layer 12 is made of a soft rubber material, and the buffer layer 12 and an inner wall of the pull ring 13 are vulcanized into an integral piece, the buffer layer 12 is disposed such that a buffering force is provided between a hand and the pull ring 13 when the pull ring 13 is pulled, the pull ring 13 is conveniently used, the rotating shaft 11 penetrates through a lower end of the pull ring 13, the pull ring 13 is conveniently pulled out of the fuel tank cap, the protrusion 2 is fixedly connected to a middle position of a bottom surface of the cap 1, a mounting groove 7 is, the arrangement of the vent hole is convenient for the air pump 8 to pump the air in the oil tank into the annular air bag 3, the bottom surfaces of the fixing plate and the lug 2 are connected through the fixing bolt, the air pump 8 is arranged on the fixing plate 9 positioned in the mounting groove 7, the air outlet of the air pump 8 is connected with the air delivery pipe 5, the circumferential side of the lug 2 is provided with the annular groove 14, the annular air bag 3 is arranged in the annular groove 14, the outer side of the annular air bag 3 is provided with the rubber layer 16, the rubber layer 16 and the surface of the annular air bag 3 are vulcanized into an integral piece, the arrangement of the rubber layer 16 improves the friction force between the annular air bag 3 and the inner wall of the nozzle of the oil tank, simultaneously improves the wear resistance of the annular air bag 3, avoids the short service life of the annular air bag 3, the annular air chamber 6 is arranged in the annular, one end of the air delivery passage 15 is communicated with the interior of the annular air bag 3, and it should be noted that the air pump 8 and the electromagnetic control valve 4 are both electrically connected with a control key in the vehicle.

The working principle is as follows: when the automobile fuel tank cap is used, the fuel tank cap is arranged at the position of the fuel tank nozzle, the convex block 2 is inserted into the inner side of the fuel tank nozzle at the moment, the air pump 8 is started to work by controlling a control key inside the automobile, the air pump 8 generates compressed air which enters the air conveying passage 15 through the air conveying pipe 5, the compressed air in the air conveying passage 15 enters the annular air cavity 6, the annular air bag 3 expands along with the increase of the compressed air in the air cavity 6, the volume is increased, the friction force between the annular air bag 3 and the inner wall of the fuel tank nozzle is increased, meanwhile, the air pumped in the fuel tank is communicated with the air in the fuel tank, the air in the fuel tank is reduced, the interior of the fuel tank is in a negative pressure state, the suction force is generated on the fuel tank cap, the fuel tank cap is not easy to pull out from the fuel tank nozzle, the electromagnetic control valve 4 is in a closed state at the moment, the electromagnetic control valve 4 is started, at the moment, compressed air in the annular air bag 3 enters the oil tank from the leakage, the oil pressure in the oil tank rises, and meanwhile, the annular air bag 3 contracts, so that the oil tank cover is conveniently pulled out from the oil tank nozzle to refuel.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an automobile fuel tank cap, includes bonnet (1) and lug (2), its characterized in that, lug (2) fixed connection is in the bottom surface intermediate position of bonnet (1), mounting groove (7) have been seted up to the bottom surface of lug (2), the opening part of mounting groove (7) is provided with fixed plate (9), the fixed plate is connected through fixing bolt with lug (2) bottom surface, is located mounting groove (7) be provided with air pump (8) on fixed plate (9), the gas outlet department of air pump (8) is connected with gas-supply pipe (5), ring channel (14) have been seted up to the week side of lug (2), be provided with annular gasbag (3) in ring channel (14), set up annular air cavity (6) in annular gasbag (3), the inboard of annular gasbag (3) vulcanizes into an organic piece with ring channel (14) inner wall, the inner wall of the annular groove (14) is provided with an air conveying passage (15) communicated with the mounting groove (7), and one end of the air conveying passage (15) is communicated with the inside of the annular air bag (3).

2. The vehicle tank cap according to claim 1, characterized in that a rubber layer (16) is arranged on the outside of the annular gas bag (3), and the rubber layer (16) is surface-vulcanized with the annular gas bag (3) in one piece.

3. The automobile fuel tank cap according to claim 1, characterized in that a groove (10) is formed in a middle position of the upper surface of the cap (1), a rotating shaft (11) is disposed in the groove (10), two ends of the rotating shaft (11) are rotatably connected with side walls of the groove (10), a pull ring (13) is disposed in the groove (10), and the rotating shaft (11) penetrates through a lower end of the pull ring (13).

4. The vehicle tank cap according to claim 3, characterized in that a buffer layer (12) is arranged on the inner side of the pull ring (13), the buffer layer (12) is made of soft rubber material, and the buffer layer (12) and the inner wall of the pull ring (13) are vulcanized into a whole.

5. The tank cap according to claim 1, characterized in that an electromagnetic control valve (4) is arranged in the gas duct (15).

6. The fuel tank cap according to claim 1, wherein the fixing plate (9) has a plurality of vent holes formed therethrough.