Fuel tank cap

Abstract

The utility model relates to the technical field of hydraulic oil tanks, in particular to an oil tank cap which comprises a cap body, a first hole site and a second hole site are arranged on the cap body, the first hole site is used for being fixedly connected with an oil tank through bolts, and a second mounting hole is used for being matched and assembled with an oil pump oil delivery pipe. The sealing rubber mat is fixedly installed on the cover body, and after the cover body is assembled on the oil tank, the sealing rubber mat is located between the cover body and the oil tank in a sealed mode. By means of the arrangement, the sealing rubber mat is fixedly installed on the cover body to form an integrated structure, the cover body and the sealing rubber mat can be assembled on an oil tank at the same time in the assembling process, the cover body and the sealing rubber mat can be disassembled from the oil tank at the same time in the disassembling process, and assembling and disassembling are more convenient; therefore, the filtering device can be very conveniently taken out from the oil tank, maintained and cleaned, and then reassembled or replaced with a new filtering device.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic oil tank technology, and specifically to an oil tank cover. Background Technology

[0002] Hydraulic equipment typically uses hydraulic oil, which is stored in an oil tank. The tank is equipped with a filter, and the filtered hydraulic oil is then pumped into the equipment. However, after prolonged use, various impurities accumulate on the filter, so it needs to be removed from the oil tank periodically for maintenance and cleaning to ensure the quality of the hydraulic oil.

[0003] Traditional fuel tank caps are directly bolted to the fuel tank during installation. This structure results in poor sealing after assembly. To solve this technical problem, a separate sealing ring is usually placed on the fuel tank before installing the fuel tank cap. However, this structure is relatively cumbersome to install and remove.

[0004] Therefore, there is still room for improvement and development in existing technologies. Utility Model Content

[0005] To address the problems in the existing technology, this utility model proposes a fuel tank cover with a simple structure and convenient assembly and disassembly.

[0006] To achieve the above objectives, the technical solution applied in this utility model is as follows:

[0007] A fuel tank cover includes a cover body with a first hole and a second hole. The first hole is used to fix the cover body to the fuel tank with bolts, and the second hole is used to assemble with an oil pump pipeline. A sealing gasket is fixedly installed on the cover body. When the cover body is assembled on the fuel tank, the sealing gasket is located between the cover body and the fuel tank.

[0008] According to the above scheme, the cover includes a first mounting seat, and a second mounting seat is provided on the first mounting seat, the second mounting seat being correspondingly provided with the opening of the oil tank; the first mounting seat is provided with a first hole at each end, and the second mounting seat is provided with a second hole.

[0009] According to the above scheme, the sealing gasket is set close to the bottom end face of the first mounting base, and the two ends of the sealing gasket are respectively provided with buckles, which cooperate with the first hole or the outer edge of the first mounting base.

[0010] According to the above scheme, when the buckle is engaged with the first hole, the buckle is provided with a third hole for assembly with a bolt.

[0011] According to the above scheme, the outer edge of the sealing gasket is provided with multiple notches. When the cover is assembled on the oil tank, the notches are located between the bottom of the outer edge of the cover and the oil tank.

[0012] According to the above scheme, the second mounting base protrudes from the middle of the first mounting base, and the sealing gasket is provided with a clearance hole corresponding to the second mounting base. When the cover is assembled on the oil tank, the clearance hole is corresponding to the opening of the oil tank.

[0013] According to the above scheme, a sealing ring is fixedly installed in the second hole, and the sealing ring is provided with an oil delivery connection hole that seals with the oil pump's oil delivery pipe.

[0014] According to the above scheme, the sealing ring is provided with a positioning groove, which is engaged with the second hole. When the sealing ring is assembled on the second hole, the two ends of the sealing ring are respectively clamped on the bottom end face and the top end face of the second mounting base.

[0015] According to the above scheme, the first hole is a slotted hole or a countersunk hole. When the first hole is a slotted hole, the buckle passes through the slotted hole through the bottom of the first mounting base and is then clamped on the top end face of the first mounting base. When the first hole is a countersunk hole, the buckle passes through the countersunk hole through the bottom of the first mounting base and is then clamped on the countersunk platform of the countersunk hole.

[0016] According to the above scheme, multiple protrusions are provided at both ends of the first mounting base.

[0017] The beneficial effects of this utility model are:

[0018] This utility model is designed such that the sealing gasket is fixedly installed on the cover to form an integrated structure. During assembly, the cover and the sealing gasket can be assembled on the oil tank at the same time. During disassembly, the cover and the sealing gasket can be removed from the oil tank at the same time, making assembly and disassembly more convenient. This allows the filter device to be easily removed from the oil tank for maintenance and cleaning before reassembly or replacement with a new filter device. Attached Figure Description

[0019] Figure 1 This is a top view of the overall structure of this utility model;

[0020] Figure 2 This is a bottom view of the overall structure of this utility model;

[0021] Figure 3 This is an exploded view of the overall structure of this utility model.

[0022] In the picture:

[0023] 1. Cover; 11. First mounting base; 12. First hole; 13. Second mounting base; 14. Second hole; 15. Protrusion; 2. Sealing gasket; 21. Buckle; 22. Notch; 23. Third hole; 24. Clearance hole; 3. Sealing ring; 31. Oil connection hole; 32. Positioning groove. Detailed Implementation

[0024] To make the objectives, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model are described in detail below with reference to the accompanying drawings. Several embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein.

[0025] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances. The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature.

[0026] In this invention, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" of the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature. The terms "vertical," "horizontal," "left," "right," "above," "below," and similar expressions are for illustrative purposes only and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed or operated in a specific orientation, and therefore should not be construed as limiting the invention.

[0027] The technical solution of this utility model will be described below with reference to the accompanying drawings and embodiments.

[0028] like Figures 1 to 3As shown, the present invention provides a fuel tank cover, comprising a cover body 1, wherein the cover body 1 has a first hole 12 and a second hole 14. The first hole 12 is used for fixed connection with the fuel tank by bolts, and the second mounting hole 14 is used for assembly with the fuel pump's oil delivery pipe. A sealing gasket 2 is fixedly installed on the cover body 1. When the cover body 1 is assembled on the fuel tank, the sealing gasket 2 is positioned between the cover body 1 and the fuel tank. This configuration forms an integral structure by fixing the sealing gasket 2 to the cover body 1. During assembly, the cover body 1 and the sealing gasket 2 can be assembled on the fuel tank simultaneously. During disassembly, the cover body 1 and the sealing gasket 2 can be removed from the fuel tank simultaneously, making assembly and disassembly more convenient. This allows for easy removal of the filter device from the fuel tank for maintenance and cleaning before reassembly or replacement with a new filter device.

[0029] Furthermore, the cover 1 includes a first mounting base 11, on which a second mounting base 13 is provided, the second mounting base 13 being correspondingly arranged with respect to the opening of the fuel tank; the first mounting base 11 has first holes 12 at both ends, and the second mounting base 13 has second holes 14. This arrangement, with the first holes 12 and second holes 14 respectively located on the first mounting base 11 and the second mounting base 13, makes efficient use of the installation space, and the first holes 12 at both ends of the first mounting base 11 ensure a more reliable fixation after assembly with the holes on the fuel tank.

[0030] Furthermore, the sealing gasket 2 is set tightly against the bottom end face of the first mounting base 11, and each end of the sealing gasket 2 has a protruding buckle 21, which engages with the first hole 12 or the outer edge of the first mounting base 11. This arrangement, through a snap-fit ​​connection, securely mounts the sealing gasket 2 and the cover 1 into an integrated structure, facilitating assembly. Furthermore, the sealing gasket 2's tight fit against the bottom end face of the first mounting base 11 ensures better sealing after assembly, with the bottom and top ends of the sealing gasket 2 tightly against the cover 1 and the oil tank, respectively. This also prevents misalignment of the sealing gasket 2, guaranteeing its sealing effect.

[0031] In practical applications, the main body of the sealing gasket 2 is a planar structure, and its main body has the same shape as the bottom end face of the first mounting base 11. It can fit tightly against the bottom end face of the first mounting base 11, so it will not deform under long-term pressure and has a long service life. Traditional sealing rings will undergo irreversible deformation under long-term pressure, resulting in a short service life and affecting the sealing effect. When the buckle 21 is engaged with the first hole 12, the shapes of the buckle 21 and the first hole 12 are adapted. When the buckle 21 is engaged with the outer edge of the first mounting base 11, the buckle 21 has a hook-shaped structure.

[0032] Furthermore, when the buckle 21 engages with the first hole 12, the buckle 21 has a third hole 23 for assembly with the bolt. With this arrangement, during assembly, the bolt passes through the third hole 23 and is fixed to the screw hole on the oil tank. The buckle 21, to a certain extent, acts as a washer with the bolt, resulting in a better locking effect. Specifically, during tightening, the bolt interferes with the buckle 21, creating a compression effect.

[0033] Furthermore, the outer edge of the sealing gasket 2 is provided with multiple notches 22. When the cover 1 is assembled onto the oil tank, the notches 22 are located between the bottom of the outer edge of the cover 1 and the oil tank. This design makes it easy to pry open the sealing gasket 2 with a tool when it is stuck to the hydraulic oil; traditional sealing rings are stuck to the hydraulic oil and are not easy to remove.

[0034] Furthermore, the second mounting base 13 protrudes from the center of the first mounting base 11, and the sealing gasket 2 is provided with a clearance hole 24 corresponding to the second mounting base 13. When the cover 1 is assembled on the oil tank, the clearance hole 24 is aligned with the opening of the oil tank. With this arrangement, after assembly, the sealing gasket 2 is positioned around the outer periphery of the opening of the oil tank, resulting in a more reliable sealing effect.

[0035] Furthermore, a sealing ring 3 is fixedly installed inside the second hole 14, and the sealing ring 3 has an oil delivery connection hole 31 that seals with the oil pump's oil delivery pipe. This arrangement allows the sealing ring 3 to easily seal with the oil pump's oil delivery pipe, resulting in a more stable oil delivery effect.

[0036] Furthermore, the sealing ring 3 is provided with a positioning groove 32, which engages with the second hole 14. When the sealing ring 3 is assembled onto the second hole 14, both ends of the sealing ring 3 are respectively clamped onto the bottom and top end faces of the second mounting base 13. This arrangement, through the engagement of the positioning groove 32 with the second hole 14, securely mounts the sealing ring 3 within the second hole 14, facilitating assembly and ensuring reliable fixation.

[0037] Furthermore, the first hole 12 is either an oblong hole or a countersunk hole. When the first hole 12 is an oblong hole, the buckle 21 passes through the bottom of the first mounting base 11 through the oblong hole and is then secured to the top end face of the first mounting base 11. When the first hole 12 is a countersunk hole, the buckle 21 passes through the bottom of the first mounting base 11 through the countersunk hole and is then secured to the countersunk platform of the countersunk hole. This design allows for convenient adjustment of the assembly angle of the cover 1 when the first hole 12 is an oblong hole; and provides good protection for the end of the buckle 21 when the first hole 12 is a countersunk hole, preventing the end of the buckle 21 from protruding above the surface of the cover 1 and causing damage.

[0038] Furthermore, the first mounting base 11 has multiple protrusions 15 at both ends. This design increases the overall rigidity of the cover 1, making it less prone to deformation.

[0039] In practical applications, the cover 1 is made of metal, and its second mounting base 13 is formed by stamping or die casting on the first mounting base 11.

[0040] The embodiments of the present utility model have been described above with reference to the accompanying drawings. However, the present utility model is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the present utility model without departing from the spirit and scope of the claims. All of these forms are within the scope of protection of the present utility model.

Claims

1. A filler cap for an oil tank, characterised in that The utility model relates to a sealing structure of oil tank, which comprises the following: A cover (1) is provided with a first hole position (12) and a second hole position (14), the first hole position (12) is used for fixed connection with the oil tank through bolts, and the second hole position (14) is used for cooperating with the oil pump oil delivery pipe; A sealing rubber (2) is fixedly installed on the cover (1), and when the cover (1) is assembled on the oil tank, the sealing rubber (2) seals between the cover (1) and the oil tank.

2. A filler cap as claimed in claim 1, wherein: The cover (1) comprises a first mounting seat (11), the first mounting seat (11) is provided with a second mounting seat (13), the second mounting seat (13) is correspondingly arranged with the opening of the oil tank; the two ends of the first mounting seat (11) are respectively provided with the first hole position (12), and the second mounting seat (13) is provided with the second hole position (14).

3. A filler cap as claimed in claim 2, wherein: The sealing rubber (2) is arranged in close contact with the bottom end face of the first mounting seat (11), the two ends of the sealing rubber (2) are respectively provided with buckles (21), and the buckles (21) are matched with the outer edges of the first hole position (12) or the first mounting seat (11).

4. A filler cap as claimed in claim 3, wherein: When the buckles (21) are matched with the first hole position (12), the buckles (21) are provided with third hole positions (23) matched with the bolts.

5. A filler cap as claimed in claim 2, wherein: The outer edge of the sealing rubber (2) is provided with a plurality of notches (22), when the cover (1) is assembled on the oil tank, the notches (22) are located between the bottom of the outer edge of the cover (1) and the oil tank.

6. A filler cap as claimed in claim 2, wherein: The second mounting seat (13) is arranged in the middle of the first mounting seat (11), the sealing rubber (2) is provided with an avoiding hole (24) correspondingly arranged with the second mounting seat (13), and when the cover (1) is assembled on the oil tank, the avoiding hole (24) is correspondingly arranged with the opening of the oil tank.

7. A filler cap as claimed in claim 2, wherein: The second hole position (14) is fixedly installed with a sealing rubber ring (3), and the sealing rubber ring (3) is provided with an oil delivery connecting hole (31) matched with the oil pump oil delivery pipe.

8. A filler cap as claimed in claim 7, wherein: The sealing rubber ring (3) is provided with a positioning groove (32), the positioning groove (32) is matched with the second hole position (14), and when the sealing rubber ring (3) is assembled on the second hole position (14), the two ends of the sealing rubber ring (3) are respectively clamped on the bottom end face and the top end face of the second mounting seat (13).

9. A filler cap as claimed in claim 3, wherein: The first hole position (12) is a waist-shaped hole or a counterbore, when the first hole position (12) is a waist-shaped hole, the buckle (21) passes through the waist-shaped hole from the bottom of the first mounting seat (11) and is clamped on the top end face of the first mounting seat (11); when the first hole position (12) is a counterbore, the buckle (21) passes through the counterbore from the bottom of the first mounting seat (11) and is clamped on the sink of the counterbore.

10. A filler cap as claimed in claim 2, wherein: The two ends of the first mounting seat (11) are respectively provided with a plurality of protrusions (15).

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