Modular output structure for automobile fuel tank

Abstract

The invention relates to a modular output structure for an automobile fuel tank, which is applied to the field of automobile fuel tanks and comprises an output structure, the output structure comprises an output end and an input end, an inner sealing structure is arranged in one end of the input end, and the inner sealing structure comprises an annular plate and a butt joint cylinder coaxially fixed with the annular plate; a ring groove coaxial with the ring plate is formed in the ring face of the ring plate, and a second sealing ring is embedded in the ring groove. The sleeve is arranged on the butt joint cylinder in a sleeving mode through the extrusion structure, the sleeve extrudes the second sealing ring, the second sealing ring is made of rubber and is tightly attached to the sleeve, so that sealing is completed, a flexible sealing mode is adopted, high-accuracy accessories are not needed, friction damage can be reduced through an extrusion sealing mode, and the service life of the butt joint cylinder is prolonged. The fuel oil flows out through the butt joint cylinder, only a small part of the fuel oil washes the second sealing ring, the washout damage of the second sealing ring is reduced, and therefore the service life of the whole output structure is prolonged.

Description

Technical Field

[0001] The present invention relates to the field of automobile fuel tanks, and in particular to a modular output structure for automobile fuel tanks applied in the field of automobile fuel tanks. Background Art

[0002] A car fuel tank is a closed container that is used to store the fuel needed for driving. This container is located at the bottom or side of the car and is usually designed to be sturdy and sealed to prevent fuel leakage or external impurities from entering. The capacity of the fuel tank varies depending on the model and purpose, ranging from dozens of liters to hundreds of liters, ensuring that the car can continue to travel over different distances and road conditions.

[0003] The invention patent CN200610157646.6 discloses a vehicle fuel tank. The invention can effectively increase the volume of the fuel tank by setting a main fuel tank body and a secondary fuel tank body to meet the volume requirement of the vehicle fuel; through the first and second ventilation pipes, the oil gas and air in the fuel tank body can be discharged into the atmosphere during fuel filling; through the first and second control valves, the fuel filling amount of the main and secondary fuel tank bodies can be controlled, and the fuel can be prevented from entering the ventilation pipe.

[0004] In the above invention, the setting of main and auxiliary oil tanks is adopted to achieve the purpose of increasing the effective volume of the oil tank. However, in actual use, there are connecting devices between the main and auxiliary oil tanks. These connecting devices may be excessively worn or blocked as the use time increases. The existing integrated equipment is difficult to replace and maintain. Summary of the invention

[0005] In view of the above-mentioned prior art, the technical problem to be solved by the present invention is that the connecting equipment between the main and auxiliary oil tanks in the prior art may be excessively worn or blocked as the usage time increases, and the integrated equipment is difficult to replace and maintain.

[0006] In order to solve the above problems, the present invention provides a modular output structure for an automobile oil tank, comprising an output structure fixedly connected in the automobile oil tank, the output structure comprising an output end and an input end, an inner sealing structure is arranged inside one end of the input end, the inner sealing structure comprises a circular ring plate and a docking sleeve coaxially fixed with the circular ring plate, the annular surface of the circular ring plate is provided with an annular groove coaxially arranged with the circular ring plate, and a second sealing ring is embedded in the annular groove, one end of the input end is installed in the output end through a thread, and the end is in contact with the circular ring plate, a movable sealing structure is arranged inside the output end, the movable sealing structure comprises a sleeve, a force-bearing plate is fixed inside the sleeve, an extrusion structure for sleeve sleeved on the docking sleeve is arranged inside the output end, a contact ring coaxially arranged with the circular ring plate is fixed on the outer side of the sleeve, and a plurality of through holes are arranged on the surface of the contact ring;

[0007] The annular surface of the circular ring plate is provided with a plurality of chute grooves which are equidistantly distributed in annular shapes around its central axis. A reset structure is arranged inside the chute, and a fan-shaped petal which is coaxially arranged with the circular ring plate is installed on the reset structure.

[0008] In the above invention, the sleeve is sleeved on the docking sleeve through an extrusion structure. The sleeve squeezes the second sealing ring. Since the second sealing ring is made of rubber, the second sealing ring fits tightly with the sleeve to complete the sealing. A flexible sealing method is adopted, and no high-precision accessories are required. The friction damage can be reduced by extrusion sealing. The fuel flows out through the docking sleeve, and only a small part of the fuel flushes the second sealing ring, reducing the flushing damage of the second sealing ring, thereby increasing the service life of the entire output structure. At the same time, the output structure adopts a modular design, which is convenient for replacement and maintenance when excessive wear or blockage occurs.

[0009] As a further supplement to the present application, the extrusion structure includes an inner guide tube and a first return spring. The inner guide tube is located inside the output end, and the output end is coaxially fixed with the inner guide tube. The two ends of the first return spring are respectively mounted on the docking tube and the inner guide tube.

[0010] As another improvement of the present application, a first inclined block is fixed to the outer side of the fan-shaped petal, and a plurality of second inclined blocks are fixed to the outer side of the docking sleeve.

[0011] As another improvement supplement of the present application, the reset structure includes a plurality of second sliders respectively arranged in each slide groove, a guide rod is fixed to both ends of the slide groove, and the second slider is slidably sleeved on the guide rod, a second reset spring is sleeved on the outer side of the guide rod, and the second slider is fixed to the fan-shaped petal.

[0012] As another improvement of the present application, an external sealing structure is provided on the outer side of one end where the output end and the input end are in contact with each other, and the external sealing structure includes a first pressure ring, a second pressure ring and a first sealing ring. The first pressure ring is coaxially fixed to the input end, the second pressure ring is coaxially fixed to the output end, and the first sealing ring is fixed to the outer side of the first pressure ring.

[0013] As another improvement of the present application, the outer side of the output end is provided with a plurality of annular grooves equidistantly distributed around its central axis, a compaction structure is rotatably installed inside the groove, the cross-section of the compaction structure is concave, one of the corners of the compaction structure is rotatably installed in the groove, and one end of the other corner of the groove is bent toward the first pressure ring.

[0014] As another improvement supplement of the present application, the output end and the input end that are away from each other are both provided with an anti-loosening component, the anti-loosening component includes an arc plate, a first slider, an adjusting bolt and a contact block, the two arc plates are respectively coaxially fixed with the output end and the input end, the outer side of the arc plate is provided with an arc groove coaxially arranged therewith, the inside of the arc groove is slidably provided with a first slider, both sides of the first slider are provided, the first slider slides into the arc groove through the sliding groove, a threaded hole is provided on the outer side of the first slider, and the adjusting bolt is installed in the threaded hole through a thread, one end of the adjusting bolt is rotatably installed on the contact block, and an angle groove is provided on the outer side of the contact block.

[0015] In summary, after adopting the above structure, the present invention has the following advantages compared with the prior art:

[0016] 1. The sleeve is sleeved on the docking sleeve through an extrusion structure. The sleeve squeezes the second sealing ring. Because the second sealing ring is made of rubber, the second sealing ring fits tightly with the sleeve to complete the sealing. The flexible sealing method is adopted, and no high-precision accessories are required. The extrusion sealing method can reduce friction damage. The fuel flows out through the docking sleeve, and only a small part of the fuel flushes the second sealing ring, reducing the flushing damage of the second sealing ring, thereby increasing the service life of the entire output structure. At the same time, the output structure adopts a modular design, which is convenient for replacement and maintenance when excessive wear or blockage occurs;

[0017] 2. The fuel pushes the movable sealing structure away from the docking tube, and the second return spring pushes the second slider, so that the second slider drives the fan-shaped petals to move toward the docking tube until the fan-shaped petals fit together to form a ring and cover the second sealing ring at the same time, thereby preventing the fuel from scouring and further improving the service life of the second sealing ring;

[0018] 3. When the output end and the input end are connected by threads, the input end pushes one end of the compacting structure, and the compacting structure rotates in the notch. The bent end of the compacting structure squeezes the first pressing ring, thereby increasing the bonding strength between the first pressing ring and the second pressing ring and further improving the sealing performance.

[0019] 4. After the hexagonal screw joint of the fuel pipe is connected to the output end and the input end, the first slider moves along the arc groove so that the angle groove on the contact block on the first slider is aligned with one corner of the hexagonal screw joint of the fuel pipe. The adjusting bolt is rotated so that the contact block on the adjusting bolt is stuck on the hexagonal corner of the fuel pipe. If looseness occurs, it will be limited by the arc groove to prevent loosening. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0021] Figure 2 It is a schematic diagram of the internal three-dimensional structure of the present invention;

[0022] Figure 3 for Figure 2 A magnified schematic diagram of point A;

[0023] Figure 4 for Figure 2 A front view of

[0024] Figure 5 for Figure 4 An enlarged schematic diagram of point B and a working schematic diagram;

[0025] Figure 6 It is a schematic diagram of the three-dimensional structure of the inner sealing structure in the present invention;

[0026] Figure 7 It is a cross-sectional view of the movable sealing structure in the present invention;

[0027] Figure 8 It is a schematic diagram of the three-dimensional structure of the anti-loosening component in the present invention;

[0028] Fig. 9 It is a working schematic diagram of the entire output structure in the present invention;

[0029] Fig.10 It is a schematic diagram of the working of the anti-loosening component in the present invention.

[0030] Description of the numbers in the figure:

[0031] 1. Output end; 2. Input end; 3. Anti-loosening assembly; 4. External sealing structure; 5. Inner guide tube; 6. First reset spring; 7. Internal sealing structure; 8. Movable sealing structure; 301. Arc plate; 302. First slider; 303. Adjusting bolt; 304. Contact block; 306. Angle groove; 307. Arc groove; 401. First pressure ring; 402. First sealing ring; 403. Second pressure ring; 404. Compacting structure; 701. Circular ring plate; 702. Guide rod; 703. Slide groove; 704. Fan-shaped petal; 705. First inclined block; 706. Docking tube; 707. Second reset spring; 708. Second slider; 709. Second sealing ring; 801. Sleeve; 802. Force plate; 803. Second inclined block; 804. Contact ring; 9. Automobile fuel tank. DETAILED DESCRIPTION

[0032] An implementation method of the present application is described in detail below with reference to the accompanying drawings.

[0033] The present invention provides a modular output structure for automobile fuel tanks. Figure 1 - Fig.10, including an output structure fixedly connected to the automobile fuel tank 9, the output structure including an output end 1 and an input end 2, the output end 1 and the input end 2 are both provided with threads at one end thereof for connection with the hexagonal screw joint of the fuel pipe, an inner sealing structure 7 is provided inside one end of the input end 2, the inner sealing structure 7 includes a circular ring plate 701 and a docking sleeve 706 coaxially fixed to the circular ring plate 701, the annular surface of the circular ring plate 701 is provided with an annular groove coaxially arranged therewith, and a second sealing ring 709 is embedded in the annular groove, one end of the input end 2 It is installed in the output end 1 through a thread, and the end is in contact with the circular ring plate 701. The output end 1 is provided with a movable sealing structure 8 inside. The movable sealing structure 8 includes a sleeve 801. The sleeve 801 has a force-bearing plate 802 fixed inside. The output end 1 is provided with an extrusion structure that allows the sleeve 801 to be sleeved on the docking sleeve 706. The outer side of the sleeve 801 is fixed with a contact ring 804 coaxially arranged therewith. The surface of the contact ring 804 is provided with a plurality of through holes. The outer side of the contact ring 804 is in contact with the inner side wall of the output end 1.

[0034] The annular surface of the annular plate 701 is provided with a plurality of chute grooves 703 equidistantly distributed in an annular pattern around its central axis. A reset structure is provided inside the chute 703 , and a fan-shaped petal 704 coaxially arranged with the annular plate 701 is installed on the reset structure.

[0035] In the above invention, the sleeve 801 is sleeved on the docking sleeve 706 through an extrusion structure. The sleeve 801 squeezes the second sealing ring 709. Since the second sealing ring 709 is made of rubber, the second sealing ring 709 fits tightly with the sleeve 801 to complete the sealing. A flexible sealing method is adopted, and no high-precision accessories are required. The friction damage can be reduced by extrusion sealing. The fuel flows out through the docking sleeve 706, and only a small part of the fuel flushes the second sealing ring 709, thereby reducing the flushing damage of the second sealing ring 709, thereby increasing the service life of the entire output structure.

[0036] Specifically, the extrusion structure includes a flow guiding inner tube 5 and a first return spring 6. The flow guiding inner tube 5 is located inside the output end 1, and the output end 1 is coaxially fixed with the flow guiding inner tube 5. The two ends of the first return spring 6 are respectively sleeved on the docking tube 706 and the flow guiding inner tube 5.

[0037] In the present invention, combined with the Figure 2 As shown, in the absence of external force, the first return spring 6 applies force to the contact ring 804 so that the sleeve 801 on the contact ring 804 is sleeved on the docking sleeve 706 , and one end of the sleeve 801 is pressed against the second sealing ring 709 on the annular plate 701 .

[0038] Specifically, a first inclined block 705 is fixed on the outer side of the fan-shaped petal 704, a plurality of second inclined blocks 803 are fixed on the outer side of the docking tube 706, and the reset structure includes a plurality of second sliders 708 respectively arranged in each slide groove 703, a guide rod 702 is fixed to both ends of the slide groove 703, and the second slider 708 is slidably sleeved on the guide rod 702, a second reset spring 707 is sleeved on the outer side of the guide rod 702, and the second slider 708 is fixed to the fan-shaped petal 704;

[0039] In the present invention, combined with Figure 6 as well as Fig. 9 As shown, the fuel pushes the movable sealing structure 8 away from the docking tube 706, and the second return spring 707 pushes the second slider 708, so that the second slider 708 drives the fan-shaped petals 704 to push toward the docking tube 706 until the fan-shaped petals 704 fit together to form a ring and cover the second sealing ring 709 at the same time, thereby preventing fuel from scouring and further increasing the service life of the second sealing ring 709.

[0040] Specifically, an outer sealing structure 4 is provided on the outer side of one end where the output end 1 and the input end 2 are bonded to each other, and the outer sealing structure 4 includes a first pressure ring 401, a second pressure ring 403 and a first sealing ring 402. The first pressure ring 401 is coaxially fixed to the input end 2, the second pressure ring 403 is coaxially fixed to the output end 1, and the first sealing ring 402 is fixed on the outer side of the first pressure ring 401;

[0041] In the present invention, combined with Figure 4 as well as Figure 5 As shown, the first pressing ring 401 and the second pressing ring 403 press the first sealing ring 402 against each other, so that both of them fit tightly with the first sealing ring 402 to achieve sealing.

[0042] Specifically, the outer side of the output end 1 is provided with a plurality of grooves equidistantly distributed in an annular manner around its central axis, and a compacting structure 404 is rotatably installed inside the groove. The cross section of the compacting structure 404 is concave, and one corner of the compacting structure 404 is rotatably installed in the groove, and one end of the other corner of the groove is bent toward the first pressure ring 401;

[0043] In the present invention, combined with Figure 4 as well as Figure 5 As shown, when the output end 1 and the input end are connected by threads, the input end 2 pushes one end of the compacting structure 404, and the compacting structure 404 rotates in the recess. The bent end of the compacting structure 404 squeezes the first pressing ring 401, thereby increasing the bonding strength between the first pressing ring 401 and the second pressing ring 403 and further improving the sealing performance.

[0044] Specifically, the output end 1 and the input end 2 are both provided with an anti-loosening component 3 at one end away from each other, and the anti-loosening component 3 includes an arc plate 301, a first slider 302, an adjusting bolt 303 and a contact block 304. The two arc plates 301 are coaxially fixed to the output end 1 and the input end 2 respectively, and an arc groove 307 coaxially arranged therewith is provided on the outer side of the arc plate 301, and the first slider 302 is slidably arranged inside the arc groove 307, and both sides of the first slider 302 are provided, and the first slider 302 is slidably inserted into the arc groove 307 through the sliding groove, and a threaded hole is provided on the outer side of the first slider 302, and the adjusting bolt 303 is installed in the threaded hole through a thread, and one end of the adjusting bolt 303 is rotatably installed on the contact block 304, and an angle groove 306 is provided on the outer side of the contact block 304;

[0045] In the present invention, combined with Figure 8 as well as Fig.10 As shown, after the hexagonal screw joint of the fuel pipe is connected to the output end 1 and the input end 2, the first slider 302 moves along the arc groove 307, so that the angle groove 306 on the contact block 304 on the first slider 302 is aligned with one corner of the hexagonal screw joint of the fuel pipe, and the adjusting bolt 303 is rotated so that the contact block 304 on the adjusting bolt 303 is stuck on the hexagonal corner of the fuel pipe. If looseness occurs, it will be limited by the arc groove 307, thereby preventing loosening.

[0046] In summary: in the absence of external force, the first return spring 6 applies force to the contact ring 804, so that the sleeve 801 on the contact ring 804 is sleeved on the docking sleeve 706, and one end of the sleeve 801 is squeezed on the second sealing ring 709 on the annular plate 701. Because the second sealing ring 709 is made of rubber, the second sealing ring 709 fits tightly with the sleeve 801, thereby completing the seal. The flexible sealing method is adopted, and no high-precision accessories are required. The friction damage can be reduced by the extrusion sealing method. The fuel flows out through the docking sleeve 706, and only a small part of the fuel flushes the second sealing ring 709, reducing the flushing damage of the second sealing ring 709, thereby increasing the service life of the entire output structure. At the same time, the output structure adopts a modular design, which is convenient for replacement and maintenance when excessive wear or blockage occurs.

[0047] The fuel pushes the movable sealing structure 8 away from the docking tube 706, and the second return spring 707 pushes the second slider 708, so that the second slider 708 drives the fan-shaped petals 704 to push toward the docking tube 706, until the fan-shaped petals 704 fit together to form a ring and cover the second sealing ring 709 at the same time, thereby preventing the fuel from eroding and further improving the service life of the second sealing ring 709; when the output end 1 and the input end are connected by threads, the input end 2 pushes one end of the compacting structure 404, and the compacting structure 404 rotates in the recess, and the compacting structure 404 is bent. One end is squeezed on the first pressure ring 401 to improve the bonding strength between the first pressure ring 401 and the second pressure ring 403, and further improve the sealing performance; after the hexagonal screw joint of the fuel pipe is connected to the output end 1 and the input end 2, the first slider 302 moves along the arc groove 307 to align the angle groove 306 on the contact block 304 on the first slider 302 with one angle of the hexagonal screw joint of the fuel pipe, and the adjusting bolt 303 is rotated to make the contact block 304 on the adjusting bolt 303 clamped and aligned with the hexagonal angle of the fuel pipe. If loosening occurs, it will be limited by the arc groove 307, thereby preventing loosening.

[0048] In view of current practical needs, the above-mentioned implementation mode adopted in this application is not limited to the scope of protection. Various changes made within the knowledge scope of technical personnel in this field without departing from the concept of this application still fall within the scope of protection of the present invention.

Claims

1. A modular output structure for a vehicle fuel tank, comprising an output structure fixedly connected to the vehicle fuel tank (9), characterized in that: The output structure comprises an output end (1) and an input end (2), one end of the input end (2) is provided with an internal sealing structure (7), the internal sealing structure (7) comprises a circular ring plate (701) and a docking sleeve (706) coaxially fixed to the circular ring plate (701), the annular surface of the circular ring plate (701) is provided with an annular groove coaxially arranged therewith, and a second sealing ring (709) is embedded in the annular groove, one end of the input end (2) is installed in the output end (1) by means of a thread, and the end is connected to the circular ring plate (701) The output end (1) is in contact with a plate (701), a movable sealing structure (8) is arranged inside the output end (1), the movable sealing structure (8) comprises a sleeve (801), a force-bearing plate (802) is fixed inside the sleeve (801), an extrusion structure is arranged inside the output end (1) to enable the sleeve (801) to be sleeved on the docking sleeve (706), a contact ring (804) coaxially arranged therewith is fixed on the outer side of the sleeve (801), and a plurality of through holes are provided on the surface of the contact ring (804); The annular surface of the circular ring plate (701) is provided with a plurality of slide grooves (703) distributed in an annular pattern at equal distances around its central axis, a reset structure is provided inside the slide groove (703), and a fan-shaped petal (704) coaxially arranged with the circular ring plate (701) is installed on the reset structure.

2. A modular output structure for an automobile fuel tank according to claim 1, characterized in that: The extrusion structure comprises a flow-guiding inner tube (5) and a first return spring (6); the flow-guiding inner tube (5) is located inside the output end (1), and the output end (1) and the flow-guiding inner tube (5) are coaxially fixed; and two ends of the first return spring (6) are respectively sleeved on the docking sleeve (706) and the flow-guiding inner tube (5).

3. The modular output structure for automobile fuel tank according to claim 1, characterized in that: A first inclined block (705) is fixed on the outer side of the fan-shaped petal (704), and a plurality of second inclined blocks (803) are fixed on the outer side of the docking tube (706).

4. The modular output structure for automobile fuel tank according to claim 3, characterized in that: The reset structure comprises a plurality of second sliders (708) respectively arranged in respective slide grooves (703); a guide rod (702) is fixed to both ends of the slide groove (703); the second slider (708) is slidably sleeved on the guide rod (702); a second reset spring (707) is sleeved on the outer side of the guide rod (702); and the second slider (708) is fixed to the fan-shaped petal (704).

5. The modular output structure for automobile fuel tank according to claim 1, characterized in that: An external sealing structure (4) is provided on the outer sides of the ends of the output end (1) and the input end (2) that are in contact with each other. The external sealing structure (4) comprises a first pressure ring (401), a second pressure ring (403) and a first sealing ring (402). The first pressure ring (401) is coaxially fixed to the input end (2), the second pressure ring (403) is coaxially fixed to the output end (1), and the first sealing ring (402) is fixed on the outer side of the first pressure ring (401).

6. A modular output structure for an automobile fuel tank according to claim 5, characterized in that: The outer side of the output end (1) is provided with a plurality of grooves distributed in an annular manner at equal intervals around its central axis, a compacting structure (404) is rotatably mounted inside the groove, the cross section of the compacting structure (404) is concave, one corner of the compacting structure (404) is rotatably mounted in the groove, and one end of the other corner of the groove is bent toward the first pressure ring (401).

7. A modular output structure for an automobile fuel tank according to claim 6, characterized in that: The output end (1) and the input end (2) are both provided with an anti-loosening component (3) at one end away from each other. The anti-loosening component (3) comprises an arc plate (301), a first slider (302), an adjusting bolt (303) and a contact block (304). The two arc plates (301) are coaxially fixed to the output end (1) and the input end (2), respectively. An arc groove (307) coaxially arranged therewith is provided on the outer side of the arc plate (301). A first slider (302) is slidably arranged inside the arc groove (307). Both sides of the first slider (302) are provided. The first slider (302) is slidably inserted into the arc groove (307) through the sliding groove. A threaded hole is provided on the outer side of the first slider (302), and the adjusting bolt (303) is installed in the threaded hole through a thread. One end of the adjusting bolt (303) is rotatably installed on the contact block (304). An angle groove (306) is provided on the outer side of the contact block (304).

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