An oil tank and a sealing cover thereof

Abstract

The utility model relates to the technical field of oil tank structure discloses an oil tank and sealing cover, include: open pipe fitting, the top fixed connection of open pipe fitting has the connecting pipe fitting, the outer wall of connecting pipe fitting is fixed and is covered with fin ring, convenient dismounting mechanism, convenient dismounting mechanism sets up at the top of connecting pipe fitting, convenient dismounting mechanism is used for improving the efficiency of dismounting, pressure relief mechanism, pressure relief mechanism sets up on convenient dismounting mechanism, the utility model discloses the design of convenient dismounting mechanism whole, when dismounting, the lever will drive rotating arm to rotate in the inside of protruding block, makes the fastener move away from the position of cover body, then can implement the function of dismounting, when installing, after loosening the lever, through the elastic force of no.

Description

Technical Field

[0001] This utility model relates to the field of fuel tank structure technology, specifically to a fuel tank and its sealing cover. Background Technology

[0002] Fuel tanks are containers used to store liquid fuels, commonly found in vehicles such as automobiles, airplanes, and ships, as well as industrial equipment. They are typically made of metal or high-strength plastics, possessing corrosion-resistant and high-pressure-resistant properties. Furthermore, some fuel tanks integrate fuel pumps and filters to ensure clean fuel delivery. Depending on their application, fuel tanks can be classified as built-in or external, with capacities ranging from tens of liters to tens of thousands of liters.

[0003] A fuel tank sealing cap, commonly known as a fuel tank cover or fuel filler cap, is a cover installed at the opening of a fuel tank to cover and seal the fuel tank inlet.

[0004] Traditional fuel tank sealing caps are mostly installed on the fuel tank by threaded connection. During the process of installation and removal, the sealing cap needs to be rotated multiple times, which is inefficient and prone to misalignment during installation, resulting in poor sealing performance. Utility Model Content

[0005] The purpose of this utility model is to provide an oil tank and its sealing cover, which solves the problem of low efficiency in the assembly and disassembly process of the prior art by means of threads.

[0006] This utility model provides the following technical solution: a sealing cap, comprising:

[0007] An open pipe fitting, wherein a connecting pipe fitting is fixedly connected to the top of the open pipe fitting, and a finned ring is fixedly sleeved on the outer wall of the connecting pipe fitting;

[0008] A convenient disassembly and assembly mechanism is provided on the top of the connecting pipe fitting, and the convenient disassembly and assembly mechanism is used to improve the efficiency of disassembly and assembly;

[0009] A pressure relief mechanism is mounted on a convenient disassembly and assembly mechanism, and the pressure relief mechanism is used to realize the function of automatic pressure relief.

[0010] The convenient disassembly and assembly mechanism includes a cover, a protrusion fixedly connected to the outer wall of the cover, a rotating arm rotatably connected to the inner wall of the protrusion, a fastener fixedly connected to the end of the rotating arm, a lever fixedly connected to the top of the rotating arm, a first elastic element fixedly connected to the side wall of the lever, the end of the first elastic element away from the lever fixedly connected to the outer wall of the cover, the bottom of the cover in movable contact with the top of the connecting pipe, and the top of the fastener in movable contact with the bottom of the wing ring.

[0011] As a preferred embodiment of the above technical solution, a handle is fixedly connected to the top of the cover, and a plug is fixedly connected to the bottom of the cover, the plug being movably inserted into the inner cavity of the connecting pipe.

[0012] As a preferred embodiment of the above technical solution, a rubber ring is fixedly sleeved on the outer wall of the plug, and a reinforcing member is fixedly connected to the inner wall of the plug.

[0013] As a preferred embodiment of the above technical solution, the pressure relief mechanism includes a cross support block, which is fixedly installed on the inner wall of the cover near the top. A second elastic element is fixedly connected to the bottom of the cross support block, a circular plate is fixedly connected to the bottom of the second elastic element, and a rubber plate is fixedly connected to the bottom of the circular plate.

[0014] As a preferred embodiment of the above technical solution, a sliding rod is fixedly connected to the top of the circular plate, and the sliding rod is slidably connected to the inner wall of the cross support block.

[0015] As a preferred embodiment of the above technical solution, the top of the cross support block is threadedly connected to a threaded rod, and the threaded end of the threaded rod extends to the bottom of the cross support block and is rotatably connected to a pressure block.

[0016] An oil tank, comprising the aforementioned sealing cover.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] This utility model features a convenient disassembly and assembly mechanism. During disassembly and assembly, pushing the lever towards the cover causes the rotating arm to rotate inside the protrusion, moving the fastener away from the cover and enabling disassembly and assembly. During installation, releasing the lever allows the lever and rotating arm to reset due to the elastic force of the first elastic element, securing the fastener at the bottom of the wing ring. This enables quick disassembly and assembly, improving efficiency and avoiding insufficient sealing caused by incomplete rotation during threaded installation. Attached Figure Description

[0019] Figure 1 This is a perspective view of the present utility model;

[0020] Figure 2 This is a schematic diagram of the separation structure of the connecting pipe fitting and the convenient disassembly and assembly mechanism of this utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the cover of this utility model;

[0022] Figure 4 This is a schematic diagram of the bottom structure of the plug component of this utility model;

[0023] Figure 5This is a schematic diagram of the pressure relief mechanism of this utility model.

[0024] In the diagram: 1. Open pipe fitting; 11. Connecting pipe fitting; 12. Wing ring; 2. Convenient disassembly and assembly mechanism; 21. Cover; 22. Handle; 23. Protrusion; 24. Rotating arm; 25. Fastener; 26. Lever; 27. Elastic element No. 1; 28. Plug; 281. Rubber ring; 282. Reinforcing element; 3. Pressure relief mechanism; 31. Cross support block; 32. Slide rod; 33. Round plate; 34. Rubber plate; 35. Elastic element No. 2; 36. Threaded rod; 37. Pressure block. Detailed Implementation

[0025] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0026] Example 1

[0027] like Figures 1-5 As shown, this utility model provides a technical solution: a sealing cap, comprising:

[0028] An open pipe fitting 1 is fixedly connected to the top of the open pipe fitting 1, and a winged ring 12 is fixedly sleeved on the outer wall of the connecting pipe fitting 11.

[0029] Easy disassembly and assembly mechanism 2 is set on the top of the connecting pipe fitting 11. Easy disassembly and assembly mechanism 2 is used to improve the efficiency of disassembly and assembly.

[0030] Pressure relief mechanism 3 is installed on the easy disassembly and assembly mechanism 2, and is used to realize the function of automatic pressure relief.

[0031] The convenient disassembly and assembly mechanism 2 includes a cover 21. A protrusion 23 is fixedly connected to the outer wall of the cover 21. A rotating arm 24 is rotatably connected to the inner wall of the protrusion 23. A fastener 25 is fixedly connected to the end of the rotating arm 24. A lever 26 is fixedly connected to the top of the rotating arm 24. A first elastic element 27 is fixedly connected to the side wall of the lever 26. The end of the first elastic element 27 away from the lever 26 is fixedly connected to the outer wall of the cover 21. The bottom of the cover 21 is in movable contact with the top of the connecting pipe 11. The top of the fastener 25 is in movable contact with the bottom of the wing ring 12. When disassembling the cover 21 on the connecting pipe 11, the lever 26 is pushed towards the cover 21. The lever 26 will drive the rotating arm 24 to rotate inside the protrusion 23, causing the fastener 25 to move away from the cover. The position of the cover 21 is moved, and the fastener 25 and the wing ring 12 do not overlap in the vertical direction. Then the cover 21 can be removed and disassembled. When installing the cover 21 on the connecting pipe 11, push the lever 26 towards the cover 21. The lever 26 will drive the rotating arm 24 to rotate inside the protrusion 23, causing the fastener 25 to move away from the cover 21. At the same time, it will compress the first elastic element 27. Then the cover 21 is inserted into the connecting pipe 11. Then release the lever 26. Through the elastic force of the first elastic element 27, the lever 26 and the rotating arm 24 can be reset as a whole, causing the fastener 25 to be locked at the bottom of the wing ring 12 to complete the installation. The surface of the open pipe 1 has an installation hole, from which the open pipe 1 can be installed on the oil tank.

[0032] As one implementation method in this embodiment, such as Figure 4 As shown, a handle 22 is fixedly connected to the top of the cover 21, and a plug 28 is fixedly connected to the bottom of the cover 21. The plug 28 is movably inserted into the inner cavity of the connecting tube 11. The design of the handle 22 makes it convenient for the user to hold the cover 21 as a whole. The plug 28 is an extension structure of the cover 21. When installing the cover 21, the plug 28 is inserted into the connecting tube 11.

[0033] As one implementation method in this embodiment, such as Figure 4 As shown, a rubber ring 281 is fixedly sleeved on the outer wall of the plug 28, and a reinforcing member 282 is fixedly connected to the inner wall of the plug 28. The number of rubber rings 281 is set to two. Through the design of the rubber rings 281, the connection between the plug 28 and the connecting pipe 11 can be double sealed. Through the design of the reinforcing member 282, the plug 28 can be reinforced, thereby ensuring the sealing effect of the rubber rings 281.

[0034] As one implementation method in this embodiment, such as Figure 5As shown, the pressure relief mechanism 3 includes a cross support block 31, which is fixedly installed on the inner wall of the cover 21 near the top. A second elastic element 35 is fixedly connected to the bottom of the cross support block 31, and a circular plate 33 is fixedly connected to the bottom of the second elastic element 35. A rubber plate 34 is fixedly connected to the bottom of the circular plate 33. In the initial state, the elastic force of the second elastic element 35 can drive the rubber plate 34 to press against the bottom of the inner wall of the cover 21 through the circular plate 33, thus sealing the opening of the cover 21. When the pressure inside the oil tank is too high, the air pressure can push the rubber plate 34 to move upward to achieve the function of automatic pressure relief and improve safety.

[0035] As one implementation method in this embodiment, such as Figure 5 As shown, a slide rod 32 is fixedly connected to the top of the circular plate 33. The slide rod 32 is slidably connected to the inner wall of the cross support block 31. Through the design of the slide rod 32, the circular plate 33 can be limited to move relative to the cross support block 31, which facilitates the automatic pressure relief operation.

[0036] As one implementation method in this embodiment, such as Figure 5 As shown, the top of the cross support block 31 is threadedly connected to a threaded rod 36. The threaded end of the threaded rod 36 extends to the bottom of the cross support block 31 and is rotatably connected to a pressure block 37. If the automatic pressure relief function is not required, the threaded rod 36 can be manually rotated to move the pressure block 37 down and press it against the top of the circular plate 33 to limit the circular plate 33.

[0037] Working principle: In use, the open pipe fitting 1 is pre-installed at the opening of the oil tank. When disassembling the cover 21 on the connecting pipe fitting 11, the lever 26 is pushed towards the cover 21. The fastener 25 and the wing ring 12 do not overlap in the vertical direction, and then the cover 21 can be pulled out and removed. When installing the cover 21 on the connecting pipe fitting 11, the lever 26 is pushed towards the cover 21, causing the fastener 25 to move away from the cover 21. At the same time, the first elastic element 27 is compressed. Insert the cover 21 into the connecting pipe 11, then release the lever 26. Through the elastic force of the first elastic element 27, the lever 26 and the rotating arm 24 can be reset as a whole, causing the fastener 25 to be locked at the bottom of the wing ring 12 to complete the installation. When the pressure inside the oil tank is too high, the air pressure can push the rubber plate 34 to move upward to achieve the function of automatic pressure relief. If the automatic pressure relief function is not required, manually rotate the threaded rod 36 to drive the pressure block 37 to move downward and press against the top of the circular plate 33 to limit the circular plate 33.

[0038] Example 2

[0039] The second embodiment of this application proposes an oil tank, which includes the aforementioned sealing cover.

[0040] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.

Claims

1. A sealing cap, characterized in that, include: An open pipe fitting (1) is fixedly connected to a connecting pipe fitting (11) at its top, and a winged ring (12) is fixedly sleeved on the outer wall of the connecting pipe fitting (11). Easy disassembly and assembly mechanism (2), which is set on the top of the connecting pipe fitting (11), is used to improve the efficiency of disassembly and assembly; Pressure relief mechanism (3), which is installed on the convenient disassembly mechanism (2), is used to realize the function of automatic pressure relief; The convenient disassembly and assembly mechanism (2) includes a cover (21), a protrusion (23) is fixedly connected to the outer wall of the cover (21), a rotating arm (24) is rotatably connected to the inner wall of the protrusion (23), a fastener (25) is fixedly connected to the end of the rotating arm (24), a lever (26) is fixedly connected to the top of the rotating arm (24), a first elastic element (27) is fixedly connected to the side wall of the lever (26), the end of the first elastic element (27) away from the lever (26) is fixedly connected to the outer wall of the cover (21), the bottom of the cover (21) is in movable contact with the top of the connecting pipe (11), and the top of the fastener (25) is in movable contact with the bottom of the wing ring (12).

2. A sealing cap according to claim 1, characterized in that: A handle (22) is fixedly connected to the top of the cover (21), and a plug (28) is fixedly connected to the bottom of the cover (21). The plug (28) is movably inserted into the inner cavity of the connecting pipe (11).

3. A sealing cap according to claim 2, characterized in that: A rubber ring (281) is fixedly sleeved on the outer wall of the plug (28), and a reinforcing member (282) is fixedly connected to the inner wall of the plug (28).

4. A sealing cap according to claim 1, characterized in that: The pressure relief mechanism (3) includes a cross support block (31), which is fixedly installed on the inner wall of the cover (21) near the top. A second elastic element (35) is fixedly connected to the bottom of the cross support block (31), and a circular plate (33) is fixedly connected to the bottom of the second elastic element (35). A rubber plate (34) is fixedly connected to the bottom of the circular plate (33).

5. A sealing cap according to claim 4, characterized in that: A slide rod (32) is fixedly connected to the top of the circular plate (33), and the slide rod (32) is slidably connected to the inner wall of the cross support block (31).

6. A sealing cap according to claim 4, characterized in that: The top of the cross support block (31) is threadedly connected to a threaded rod (36), the threaded end of which extends to the bottom of the cross support block (31) and is rotatably connected to a pressure block (37).

7. A fuel tank, characterized in that, Includes a sealing cap as described in any one of claims 1 to 6.

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