CN211054916U

CN211054916U - Locking structure of fuel tank cap

Info

Publication number: CN211054916U
Application number: CN201921566552.3U
Authority: CN
Inventors: 廖江正; 刘剑; 宾旭洲; 何旺; 苏永志; 王新富
Original assignee: Guangxi Liugong Machinery Co Ltd; Liugong Changzhou Machinery Co Ltd; Liuzhou Liugong Excavators Co Ltd
Current assignee: Guangxi Liugong Machinery Co Ltd; Liugong Changzhou Machinery Co Ltd; Liuzhou Liugong Excavators Co Ltd
Priority date: 2019-09-20
Filing date: 2019-09-20
Publication date: 2020-07-21
Anticipated expiration: 2029-09-20

Abstract

The utility model relates to a fuel tank cap locking structure, for solving the complicated problem of current fuel tank cap inner structure, the utility model discloses construct a fuel tank cap locking structure, including setting up on the oil tank and be provided with the oil receiving extension pipe of oil filler hole, screw-in install at the intraoral fuel tank cap of oil filler hole, install down the opening on the oil receiving extension pipe and can follow the oil receiving extension pipe axial gliding U-shaped leading truck from top to bottom, the fuel tank cap is located in the leading truck and the top of fuel tank cap is rotated through round pin axle and leading truck top and is connected, is provided with fixed lockhole seat on the leading truck, is provided with on the fuel tank cap and moves lockhole seat with fixed lockhole seat pairing. The utility model discloses in, through fixed lockhole seat and removal lockhole seat cooperation and use the padlock to pin the back to the locking of the circumferencial direction of fuel tank cap has been realized through the leading truck, realizes the locking of fuel tank cap, and this locking simple structure is reliable.

Description

Locking structure of fuel tank cap

Technical Field

The utility model relates to a fuel tank cap, more specifically say, relate to a fuel tank cap locking structure.

Background

The fuel tank cover of the diesel tank on the engineering machinery generally adopts a screw-in type and is provided with a lock cylinder, the fuel tank cover generally comprises a cover body, the lock cylinder and a sealing ring, after the cover body is screwed to a proper angle and fastened with a groove on a fuel filler, the lock cylinder is rotated by inserting a key, an eccentric shaft on the lock cylinder radially pushes out a lock pin and is inserted into a limiting groove on the fuel filler, so that the cover body cannot rotate, and the aim of locking the cover body and the fuel filler is fulfilled.

The diesel tank cover with the lock cylinder can prevent leakage, dust and the like, and the sealing medium is diesel. The diesel tank cover with the lock cylinder is simple in appearance and strong in environment adaptability.

However, although the diesel tank cover with the lock cylinder is convenient to use, the anti-theft performance is poor, the lock cylinder cannot be maintained basically under the conditions of being blocked and damaged, and only can be replaced in a whole set; the internal structure is complex, the processing is not easy, and rainwater is easy to leak into the oil tank; the fuel tank cap is not connected with the fuel filler opening and is easy to lose.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is the complicated problem of fuel tank cap inner structure, and provide a fuel tank cap locking structure of simple structure, reliability height, use padlock locking.

The utility model discloses a realize that the technical scheme of its purpose is like: the utility model provides a structure tank cap locking structure, including set up on the oil tank and be provided with the oily extension pipe of oil filler hole, screw in formula install the tank cap in the oil filler hole, its characterized in that still includes that the opening is installed down on the oily extension pipe and can follow the U-shaped leading truck that receives oily extension pipe axial gliding from top to bottom, the tank cap is located in the leading truck and the top of tank cap through the round pin axle with the leading truck top is rotated and is connected, be provided with fixed keyhole seat on the leading truck, be provided with on the tank cap with the removal keyhole seat that fixed keyhole seat pairs. The utility model discloses in, through fixed lockhole seat and removal lockhole seat cooperation and use the padlock to pin the back to the locking of the circumferencial direction of fuel tank cap has been realized through the leading truck, realizes the locking of fuel tank cap.

Furthermore, in the above oil tank cap locking structure, the vertical parts on both sides of the guide frame are provided with vertical guide grooves, and the outer side wall of the oil receiving extension pipe is provided with a slide block correspondingly embedded in the guide grooves on the guide frame. Furthermore, the sliding block is cylindrical, and the axis of the sliding block is perpendicular to the axis of the oil filling port. Furthermore, the guide groove is a through groove transversely penetrating through the guide frame, the tail end of the sliding block is a limiting end which is positioned outside the guide groove and is in contact with the outer side surface of the guide frame, and a sliding block inlet which is communicated with the guide groove and allows the sliding block to slide into the guide groove is formed in the guide frame. When opening the fuel tank cap, open behind the padlock rotate the axial spacing back of fuel tank cap contact fuel tank cap and wholly lift fuel tank cap and leading truck, realize opening completely of fuel tank cap, after the fuel tank cap is opened completely, fuel tank cap accessible leading truck is hung and is being received oily extension pipe, avoids the fuel tank cap to lose.

Further, in the above-described tank cap locking structure, the slider inlet port is connected to and communicated with the lower end of the guide groove such that the guide groove and the slider inlet port have a shape of "L", or the slider inlet port is connected to and communicated with the guide groove at a position above the lower end of the guide groove such that the guide groove and the slider inlet port have a shape of "T".

Further, in the above-mentioned tank cap locking structure, when the tank cap is in a screwed state, the movable keyhole seat is attached to the fixed keyhole seat and the keyhole of the movable keyhole seat is coaxially communicated with the keyhole of the fixed keyhole seat.

Further, in the above-mentioned tank cap locking structure, a connecting line of the two sliders on the outer side wall of the oil receiving extension pipe intersects with an axial line of the oil filler opening.

Compared with the prior art, the utility model discloses a fuel tank cap inner structure is simple reliable, can carry out fine locking through the leading truck and combination padlock.

Drawings

Fig. 1 is a schematic structural view of a tank cap locking structure.

Fig. 2 is a sectional view taken along the direction a in fig. 1.

Fig. 3 is a bottom view of the tank cap.

Fig. 4 is a plan view of the tank cap.

Fig. 5 is a schematic structural view of an oil receiving extension pipe.

Fig. 6 is a schematic view showing a locked state of the tank cap.

Fig. 7 is a schematic view showing an opened state of the tank cap.

Fig. 8 is a schematic view of the tank cap hanging on the oil receiving extension pipe after being opened.

Part names and serial numbers in the figure:

the oil-receiving device comprises an elastic cushion 1, a sealing gasket 2, an outer shell 3, a pin shaft 4, a movable lockhole seat 5, a fixed lockhole seat 6, a sealing ring 7, a rivet 8, a clamping plate 9, an elastic inner shell 10, a partition plate 11, a guide rail 12, a sliding block 13 and an oil-receiving extension pipe 14.

Detailed Description

The following description of the embodiments refers to the accompanying drawings.

In this embodiment, the fuel cap locking structure further includes an oil receiving extension pipe 14, a guide frame 12, and a fuel cap.

As shown in fig. 1 to 6, the fuel tank cap comprises an elastic cushion 1, a sealing gasket 2, an outer shell 3, a sealing gasket 7, a rivet 8, a clamping plate 9, an elastic inner shell 10, a partition plate 11 and the like, wherein the partition plate 11 is fixed in the outer shell 3, and the elastic cushion 1 is arranged between the outer shell 3 and the partition plate 11; the elastic inner shell 10 is fixed on the partition plate, and a sealing gasket is arranged between the elastic inner shell 10 and the partition plate 11. And a sealing ring is arranged in the groove of the elastic inner shell and is used for contacting and sealing the oil filling port of the oil receiving extension pipe. The cardboard 9 passes through rivet 8 to be fixed on elasticity inner shell 10, and when the fuel tank cap was with in the screw in oil filler hole, the outer fringe embedding of cardboard 9 realized adding oil cap's axial spacing in the recess in the oil filler hole.

The oil receiving extension pipe 14 is fixed to the oil tank, and its end portion is a filler opening and is closed by being fitted with a tank cap. Two sliding blocks 13 are arranged on the outer side surface of the side wall of the oil receiving extension pipe 14, the sliding blocks are cylindrical, and the axis of the sliding blocks is perpendicular to and intersected with the axis of the oil filling port.

The guide frame 12 is U-shaped and formed by bending a steel plate, the opening of the guide frame is downwards arranged on the oil receiving extension pipe 14, the vertical parts at the two sides of the guide frame 12 are both provided with vertical guide grooves 121, the guide grooves 121 are through grooves which transversely penetrate through the guide frame 12,

the slider 13 has a cap-shaped end, which is a stopper end located outside the guide groove 121 and contacting the outer side of the guide frame 12, and the guide frame 12 has a slider inlet 122 communicating with the guide groove 121 for the slider 13 to slide into the guide groove 12. the slider inlet 122 communicates with the lower end of the guide groove 121, so that the slider inlet 122 and the guide groove 121 are L-shaped.

The tank cap is located in the guide frame 12 and the housing is pivotally connected at its centre to the guide frame 12 by means of a pin 4. Be provided with fixed lockhole seat 5 on leading truck 12, be provided with on the tank cap with fixed lockhole seat 5 paired removal lockhole seat 6, all be provided with the lockhole on fixed lockhole seat 5 and removal lockhole seat 6. After the oil tank cover is screwed at the oil filling opening, the fixed lockhole seat and the movable lockhole seat are close to each other, and the lockholes arranged on the lockhole seats are coaxially aligned and communicated.

In this embodiment, the guide frame 12 inserts the slider 13 on the side of the oil receiving extension pipe 14 into the guide groove 121 of the guide frame 12 through the slider inlet 122, then the guide frame 12 moves downward along the slider 3 until the oil tank cap is inserted into the oil filler hole, the oil tank cap is rotated to make the movable keyhole seat on the oil tank cap fit with the fixed keyhole seat on the guide frame, the keyhole is coaxially communicated, and then the movable keyhole seat and the fixed keyhole seat are locked together by the lock ring of the padlock passing through the keyhole, thereby locking the oil tank cap. When the oil tank is refueled, the padlock is opened, the oil tank cover is rotated, then the guide frame is lifted, as shown in fig. 7, the guide frame is rotated around the sliding block, the guide frame is hung on the sliding block, the connection between the oil tank cover and the oil receiving extension pipe is realized, and the oil tank cover is prevented from being lost in the refueling process, as shown in fig. 8.

Claims

1. The utility model provides a fuel tank cap locking structure, is including setting up on the oil tank and be provided with the oily extension pipe of oil filler hole, screw in formula and install the fuel tank cap in the oil filler hole, its characterized in that still includes that the opening is installed down on the oily extension pipe and can follow the gliding U-shaped leading truck from top to bottom of oily extension pipe axial, the fuel tank cap is located in the leading truck and the top of fuel tank cap through the round pin axle with the leading truck top is rotated and is connected, be provided with fixed keyhole seat on the leading truck, be provided with on the fuel tank cap with the removal keyhole seat that fixed keyhole seat pairs.

2. The tank cap locking structure according to claim 1, wherein vertical portions of both sides of the guide frame are provided with vertical guide grooves, and a slider is provided on an outer sidewall of the oil receiving extension pipe to be inserted into the guide grooves of the guide frame.

3. The tank cap locking structure according to claim 2, wherein the slider has a cylindrical shape with an axis perpendicular to an axis of the filler neck.

4. The tank cap locking structure according to claim 3, wherein the guide groove is a through groove extending transversely through the guide frame, the end of the slider is a stopper located outside the guide groove and contacting an outer surface of the guide frame, and the guide frame has a slider inlet communicating with the guide groove for the slider to slide into the guide groove.

5. The tank cap locking structure according to claim 4, wherein the slider inlet is connected to and communicated with a lower end of the guide groove.

6. The tank cap locking structure according to claim 4, wherein the slider inlet communicates with the guide groove at a position above a lower end thereof.

7. The tank cap locking structure according to any one of claims 1 to 6, wherein the movable locking hole seat is attached to the fixed locking hole seat and the locking hole of the movable locking hole seat is coaxially communicated with the locking hole of the fixed locking hole seat when the tank cap is in a screwed state.

8. The tank cap locking structure according to any one of claims 1 to 6, wherein a line connecting the two sliders on the outer side wall of the oil receiving extension pipe intersects with an axial line of the filler neck.