Magnetic oil tank cover

Abstract

The utility model relates to the technical field of oil tank cover, especially to a magnetic oil tank cover, the detachable sealing connection of magnetic oil tank cover and oil tank mouth, the magnetic oil tank cover includes end cover, clamping assembly and magnetic attraction subassembly, clamping assembly includes clamping part and sealing ring, and the clamping part extends out along the one end surface of end cover and is set in the oil tank mouth, and the sealing ring sets up in one end surface out of clamping part, and the detachable sealing connection of clamping part through sealing ring and oil tank mouth, and the magnetic attraction subassembly includes fixed part and magnet body, and the fixed part extends out along the first end surface of end cover and sets up in clamping part, and the magnet body is detachably connected with fixed part. Adopt the utility model, through setting clamping assembly and magnetic attraction subassembly, clamping assembly is sealedly connected with oil tank mouth through sealing ring, and the magnetic attraction subassembly provides the magnetic attraction force and adsorbs the magnetic oil tank cover on the car body, simultaneously, the separation of magnetic oil tank cover and oil tank mouth can be realized through the simple end cover of pulling, and the service life is long.

Description

Technical Field

[0001] This utility model relates to the field of fuel tank cap technology, and in particular to a magnetic fuel tank cap. Background Technology

[0002] Currently, the mainstream traditional fuel tank caps on the market mainly adopt the following structures, all of which have certain limitations: 1. Threaded screw-on oil tank cover This is the most common traditional structure. Its basic working principle is that mating threads are machined on the inner wall of the fuel tank filler neck and the body of the fuel tank cap. The user achieves sealing and fixation by rotating the fuel tank cap and utilizing the engagement of the threaded pair.

[0003] Existing technical problems: Inconvenient to operate: Each time oil is added, it requires multiple rotations to tighten or loosen, making the operation cumbersome and inefficient.

[0004] Thread wear and stripping: After long-term use, the threads are prone to wear, impact, or damage from crossed threads, resulting in poor sealing or even inability to tighten.

[0005] The sealing effect relies mainly on the compression between a single rubber sealing ring and the end face. If the sealing ring ages or is damaged, it will directly lead to fuel vapor leakage.

[0006] 2. Snap-on quick-release fuel tank cap Another common structure uses a combination of a snap-fit ​​and a slot for fixation. The user can lock the snap-fit ​​on the fuel tank cap and the slot inside the filling port by pressing or rotating it at a specific angle.

[0007] Existing technical problems: Insufficient connection strength: Buckle structures, especially plastic buckles, are prone to fatigue fracture or deformation under long-term cyclic use or external impact, resulting in loosening of the cover.

[0008] Poor sealing reliability: Snap-fit ​​connections are generally less tight than threaded connections and are difficult to provide continuous and uniform clamping force. Under vehicle vibration or temperature changes, slight seal failures can easily occur, leading to the escape of fuel vapor.

[0009] Unclear tactile feedback: Users sometimes find it difficult to accurately determine whether the latch has been fully locked by touch, which poses a safety hazard due to incomplete locking.

[0010] Therefore, there is an urgent need for a magnetic oil tank cover that can ensure a good seal while being easy to operate and having a long service life. Utility Model Content

[0011] In view of this, the technical problem to be solved by this utility model is to provide a magnetic oil tank cover to solve the problems of poor sealing, inconvenient operation and short service life of existing oil tank covers.

[0012] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: According to one aspect of the present invention, a magnetic oil tank cover is provided, wherein the magnetic oil tank cover is detachably and sealingly connected to the oil tank opening, characterized in that the magnetic oil tank cover includes an end cap, a locking assembly, and a magnetic assembly; the locking assembly includes a locking portion and a sealing ring; the locking portion extends along a first end face of the end cap and is fitted inside the oil tank opening; the sealing ring is fitted outside a second end face of the locking portion; the locking portion is detachably and sealingly connected to the oil tank opening through the sealing ring; the magnetic assembly includes a fixing portion and a magnet body; the fixing portion extends along the first end face of the end cap and is disposed within the area enclosed by the locking portion; the magnet body is detachably connected to the fixing portion.

[0013] Preferably, the engaging portion has a hollow tubular structure.

[0014] Preferably, the sealing ring is an O-ring rubber sealing ring.

[0015] Preferably, the fixing part includes a fixing part body, a fixing base and a screw, the fixing base covers the cross-section of the fixing part body and is provided with threads, and the magnet body is fixed to the fixing part body by the screw and the threads.

[0016] Preferably, the fixing part body is tubular and located in the middle of the end cap.

[0017] Preferably, the fixing part and the engaging part are on the same central axis.

[0018] Preferably, the axial length of the fixed part body is the same as the axial length of the engaging part.

[0019] Preferably, the side end face of the end cap is provided with a toothed structure and / or annular groove arranged along the axial direction.

[0020] Preferably, the end cap has a circular cross-section, and the diameter of the end cap is larger than the diameter of the tank opening.

[0021] Preferably, the magnetic oil tank cover is made of aluminum.

[0022] Compared with the prior art, the magnetic oil tank cover provided by this utility model has a locking component and a magnetic component. The locking component is sealed to the oil tank opening through a sealing ring, and the magnetic component provides an attraction between the magnetic oil tank cover and the oil tank opening. While ensuring a good seal, the magnetic oil tank cover can be easily separated from the oil tank opening by simply pulling off the end cover. It is easy to operate and has a long service life. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of a magnetic oil tank cover provided in Embodiment 1 of this utility model.

[0024] Figure 2 The diagram below shows the structure of a magnetic oil tank cover according to Embodiment 1 of this utility model.

[0025] Figure 3 This is a cross-sectional structural diagram of a magnetic oil tank cover provided in Embodiment 1 of this utility model. Detailed Implementation

[0026] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0027] like Figures 1 to 3 As shown, Figure 1 This is a schematic diagram of the structure of a magnetic oil tank cover provided in Embodiment 1 of this utility model. Figure 2 The diagram below shows the structure of a magnetic oil tank cover according to Embodiment 1 of this utility model. Figure 3 This is a cross-sectional structural diagram of a magnetic oil tank cover provided in Embodiment 1 of this utility model.

[0028] In this embodiment, the magnetic fuel tank cover is detachably and sealed to the fuel tank opening. The magnetic fuel tank cover includes an end cover 10, a locking assembly 20, and a magnetic assembly 30. The locking assembly 20 includes a locking part 21 and a sealing ring 22. The locking part 21 extends along the first end face 101 of the end cover 10 and is fitted inside the fuel tank opening. The sealing ring 22 is fitted outside the second end face 211 of the locking part 21. The locking part 21 is detachably and sealed to the fuel tank opening through the sealing ring 22. The magnetic assembly 30 includes a fixing part and a magnet body 32. The fixing part extends along the first end face 101 of the end cover 10 and is disposed in the area enclosed by the locking part 21. The magnet body 32 is detachably connected to the fixing part.

[0029] In this embodiment, the end cap 10 is cylindrical with a circular cross-section. The side end face of the end cap 10 is provided with an axially oriented toothed structure 102, and the cross-section of two adjacent end faces of the toothed structure 102 is V-shaped. It can be understood that, in addition to the aforementioned toothed structure, the side end face of the end cap 10 may also have an annular groove along its circumference. Both the toothed structure and the annular groove are intended to increase the friction force when a person's hand contacts the end cap 10. Other conventionally shaped gear structures or grooves are considered simple variations of this invention. In some other embodiments, the cross-section of the end cap 10 may also be square or rectangular.

[0030] The engaging portion 21 is a tubular structure extending from the first end face 101 of the end cap 10. An annular groove is provided on the outer end face of the second end face 211 of the engaging portion 21, and the sealing ring 22 engages within this annular groove. As shown in the attached drawings, the cross-sectional diameter of the end cap 10 is larger than the cross-sectional diameter of the engaging portion 21 and also larger than the diameter of the fuel tank opening. Because the engaging portion 21 engages with the inner end face of the fuel tank opening, the annular portion of the end cap 10 extending radially from one end of the engaging portion 21 facilitates gripping and increases torque, making it easier to remove the magnetic fuel tank cap. In this embodiment, the sealing ring 22 is an O-ring rubber seal. When the engaging portion 21 extends into the fuel tank opening, the O-ring rubber seal, through its elastic sealing properties, is pressed between the engaging portion 21 and the inner end face of the fuel tank opening, achieving a sealed connection between the magnetic fuel tank cap and the fuel tank opening. In this embodiment, the central axis of the end cap 10 coincides with the central axis of the engaging portion 21, which can improve the user's sense of force exertion.

[0031] In this embodiment, the fixing part includes a fixing part body 311, a fixing base 313, and a screw 312. The fixing part body 311 has a tubular structure extending from the first end face 101 of the end cover 10. This tubular structure has a fixing base 313 covering the cross-section of the fixing part body 311, dividing the fixing part body 311 into front and rear chambers. The fixing base 313 is located at the end offset from the first end face 101. The fixing base 313 has a threaded through hole in its middle. The screw 312 passes through the middle through hole of the magnet body 32 and is threadedly connected to the threaded through hole of the fixing base 313, thereby detachably fixing the magnet body 32 to the fixing part body 311 and the fixing base 313.

[0032] In some embodiments, the fixing body 311 and the engaging part 21 are coaxial. Thus, the magnet body 32, fixedly placed on the fixing base 313, is also coaxial with the engaging part 21. This results in a more uniform magnetic attraction between the magnet body 32 and the inner wall of the fuel tank opening. Consequently, the O-ring rubber seal experiences a more uniform compressive force, resulting in a better sealing effect and a longer lifespan.

[0033] In some embodiments, the length of the fixing body 311 is the same as the length of the engaging part 21. As shown in the figure, both the fixing body 311 and the engaging part 21 extend to the same side away from the first end face 101 and have the same length. This causes the magnet body 32, which is fixed to the fixing base 313, to be located at the end of the fixing body 311. When the vehicle is refueling, the detached magnetic fuel tank cap can be directly attached to the vehicle body, thus preventing the magnetic fuel tank cap from being contaminated during refueling.

[0034] In some embodiments, the magnetic oil tank cover is made of aluminum, which greatly increases the service life of the magnetic oil tank cover without disrupting the direction of the magnetic force.

[0035] The following describes the steps for using the magnetic oil tank cap: 1. When it is necessary to close the magnetic oil tank cover, align the side of the magnetic oil tank cover away from the first end face 101 of the end cover 10 with the oil tank opening; 2. Insert the magnetic oil tank cover into the oil tank opening. Specifically, insert the engaging part 21 into the oil tank opening and seal it with an O-ring. 3. When it is necessary to remove the magnetic fuel tank cap, simply grasp the toothed structure 102 of the end cap 10 and pull it away from the fuel tank opening. After pulling it out, the magnetic fuel tank cap can be directly attached to the vehicle body by the magnet body 32.

[0036] This utility model provides a magnetic fuel tank cap, which is configured with a locking component 20 and a magnetic component 30. The locking component 20 is sealed to the fuel tank opening through a sealing ring 22, and the magnetic component 30 provides magnetic attraction to attach the magnetic fuel tank cap to the vehicle body. While ensuring a good seal, the magnetic fuel tank cap can be easily separated from the fuel tank opening by simply pulling off the end cap. After being pulled out, the magnetic fuel tank cap can be directly attached to the vehicle body. The entire refueling process is convenient and has a long service life.

[0037] The preferred embodiments of the present invention have been described above with reference to the accompanying drawings, but this does not limit the scope of the present invention. Those skilled in the art can implement the present invention in various modifications without departing from its scope and essence; for example, a feature of one embodiment can be used in another embodiment to obtain yet another embodiment. Any modifications, equivalent substitutions, and improvements made within the scope of the present invention's technical concept should be within the scope of the present invention.

Claims

1. A magnetic oil tank cover, wherein the magnetic oil tank cover is detachably and sealingly connected to the oil tank opening, characterized in that, The magnetic oil tank cover includes an end cap, a locking assembly, and a magnetic suction assembly. The locking assembly includes a locking portion and a sealing ring. The locking portion extends along the first end face of the end cap and is fitted inside the oil tank opening. The sealing ring is fitted outside the second end face of the locking portion. The locking portion is detachably and sealingly connected to the oil tank opening through the sealing ring. The magnetic suction assembly includes a fixing portion and a magnet body. The fixing portion extends along the first end face of the end cap and is disposed within the area enclosed by the locking portion. The magnet body is detachably connected to the fixing portion.

2. The magnetic oil tank cover according to claim 1, characterized in that, The engaging part has a hollow tubular structure.

3. The magnetic oil tank cover according to claim 1, characterized in that, The sealing ring is an O-ring rubber sealing ring.

4. The magnetic oil tank cover according to claim 1, characterized in that, The fixing part includes a fixing part body, a fixing base and a screw. The fixing base covers the cross-section of the fixing part body and is provided with threads. The magnet body is fixed to the fixing part body by the screw and the threads.

5. The magnetic oil tank cover according to claim 4, characterized in that, The fixing part is tubular and located in the middle of the end cap.

6. The magnetic oil tank cover according to claim 1, characterized in that, The fixing part and the engaging part are on the same central axis.

7. The magnetic oil tank cover according to claim 4, characterized in that, The axial length of the fixed part body is the same as the axial length of the engaging part.

8. The magnetic oil tank cover according to claim 1, characterized in that, The side end face of the end cap is provided with a toothed structure and / or annular groove arranged along the axial direction.

9. The magnetic oil tank cover according to claim 1, characterized in that, The end cap has a circular cross-section, and its diameter is larger than that of the fuel tank opening.

10. The magnetic oil tank cover according to claim 1, characterized in that, The magnetic oil tank cover is made of aluminum.

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