Automobile fuel tank cap with dustproof and waterproof functions
By incorporating double-layer sealing strips, arc-shaped drainage plates, and limiting plates, the design solves the problem of insufficient dust and water protection performance of traditional fuel tank caps, achieving the sealing and stability of the fuel tank, protecting fuel quality, and preventing corrosion.
Patent Information
- Application Number
- CN202423204836.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-25
- Publication Date
- 2025-10-24
- Estimated Expiration
- 2034-12-25
AI Technical Summary
Traditional car fuel tank caps have limitations in dust and water protection, and their insufficient sealing performance leads to fuel contamination and fuel tank corrosion, affecting engine efficiency.
The double-layer sealing strip structure is combined with the sealing extrusion surface of the hinged cover, along with the arc-shaped plate drainage design and the limiting plate structure, to ensure the sealing and waterproof performance of the fuel tank cover, and to drain accumulated water through the drainage channel.
It effectively prevents dust and moisture from entering the fuel tank, protects fuel quality, prevents fuel tank corrosion, ensures the fuel tank cap closes securely, and reminds users to use it correctly.
Smart Images
Figure CN223467001U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of automobile parts design and manufacture, concretely relates to a car fuel tank cap with dustproof and waterproof function. BACKGROUND
[0002] The car fuel tank cap as the key component of fuel system undertakes the important duty of sealing fuel tank, preventing fuel leakage and preventing external impurity invasion, however, in practical application, the traditional type fuel tank cap exposes several deficiencies, such as the limitation in dustproof and waterproof efficiency and the unsatisfactory sealing effect, etc., these problems can cause fuel to be contaminated, fuel tank to be corroded and the normal operation of vehicle to be adversely affected.
[0003] The sealing ring material and design used by the traditional fuel tank cap often lack advancement, and can easily age and deform after long-term use, thereby reducing its sealing performance, which provides an opportunity for dust and moisture to enter the fuel tank and pollute the fuel, thereby interfering with the working efficiency of the engine, and in severe cases, can also accelerate the corrosion process of the fuel tank, therefore, we propose a car fuel tank cap with dustproof and waterproof function to overcome the above-mentioned defects. SUMMARY
[0004] In order to overcome the shortcomings of the prior art, the utility model provides a car fuel tank cap with dustproof and waterproof function, which improves the dustproof and waterproof performance of the traditional fuel tank cap.
[0005] The technical scheme is as follows: a car fuel tank cap with dustproof and waterproof functions, comprising a fuel tank port shell and a hinged cap, the fuel tank port shell is a mounting carrier of the fuel tank cap, the fuel tank port shell is a whole rectangular shell, the front side of the fuel tank port shell is a groove of a circular fuel port, the groove edge of the front side of the fuel tank port shell is provided with a shallow clamping groove, the hinged cap is rotatably mounted on one side of the front of the fuel tank port shell, and the hinged cap is provided with a sealing extrusion surface matched with the clamping groove on the side close to the fuel tank port shell; further comprising a locking assembly, a lock hole, a sealing rubber strip one, a sealing rubber strip two and a fuel tank cap, the locking assembly is arranged in the groove on the front side of the fuel tank port shell, the hinged cap is provided with the lock hole, the locking assembly cooperates with the lock hole to enable the hinged cap to be stably closed on the shell of the fuel tank port, the clamping groove on the front side of the fuel tank port shell is provided with the sealing rubber strip one and the sealing rubber strip two, the sealing rubber strip one and the sealing rubber strip two are arranged in two circles and fixed on the clamping groove of the fuel tank port shell, the circular fuel port in the groove on the front side of the fuel tank port shell is provided with the fuel tank cap, the fuel tank cap is used for closing the fuel port of the fuel tank port shell, the hinged cap is rotatably closed on the front side of the fuel tank cap to provide protection, the sealing extrusion surface on the hinged cap extrudes on the sealing rubber strip one and the sealing rubber strip two, the locking assembly is inserted into the lock hole to be locked, and the fuel tank port shell and the hinged cap can be sealed and closed, so that the dustproof and waterproof effects of the fuel tank cap are achieved.
[0006] As an improvement of the above scheme, the fuel tank port shell is provided with an anti-loss rope in the groove at the fuel tank cap, the anti-loss rope is arranged between the fuel tank port shell and the cap of the fuel tank cap, and the anti-loss rope is used to reduce the loss of the fuel tank cap.
[0007] As an improvement of the above scheme, the fuel tank port shell is provided with an identification at the oil inlet of the fuel tank cap, the identification is used to prompt whether the fuel tank cap is screwed in place at the fuel tank port shell, and the fuel tank cap is provided with an arrow for switching the screwing direction.
[0008] As an improvement of the above scheme, the top of the sealing extrusion surface of the hinged cap is provided with an arc-shaped plate, the arc-shaped plate is a plate body recessed from both ends to the middle, the middle of the arc-shaped plate is provided with a plurality of drain pipes, the drain pipes are connected to the bottom surface of the sealing extrusion surface after penetrating through the arc-shaped plate, and the arc-shaped plate is used to guide the water flow that may appear on the hinged cap and discharge the water flow to the outside of the hinged cap through the drain pipes.
[0009] As an improvement of the above scheme, the groove edge at the bottom of the clamping groove on the front side of the fuel tank port shell is provided with a drain groove matched with the water outlet of the drain pipe, and the drain groove facilitates the drain pipe to guide the water flow that may fall on the arc-shaped plate to the outside of the fuel tank port shell.
[0010] As an improvement of the above scheme, further comprising a limiting plate, the side of the hinged cover corresponds to the position of the fuel tank cover, and the limiting plate is fixed, the limiting plate is composed of parallel and spaced support plates, the limiting plate can be fitted and clamped into the knob protrusion of the fuel tank cover, so that the correctly closed fuel tank cover can be stably clamped by the limiting plate, and the stability of the fuel tank cover on the fuel tank port shell is improved, when the fuel tank cover is not closed in place, the limiting plate will be pressed on the knob protrusion of the fuel tank cover, so that the hinged cover cannot be correctly closed on the fuel tank port shell.
[0011] The beneficial effects of the present application are as follows:
[0012] 1、The present application adopts double-layer sealing structure of sealing rubber strip one and sealing rubber strip two to cooperate with the sealing extrusion surface on the hinged cover, ensures the close fit between the fuel tank port shell and the hinged cover, effectively prevents impurities such as dust and moisture from entering the fuel tank, and protects the fuel quality.
[0013] 2、The hinged cover top of the present application is provided with an arc-shaped plate with a drain pipe, which can effectively guide the water flow falling on the hinged cover and discharge the water flow, prevent water accumulation from causing pressure or corrosion to the fuel tank cover, and at the same time, a drain groove is formed at the edge of the bottom of the fuel tank port shell, which further assists the drainage process and ensures that the fuel tank cover area is dry and clean.
[0014] 3、The present application can also stably clamp the correctly closed fuel tank cover through the design of the limiting plate, increase the stability of the fuel tank cover on the fuel tank port shell, and when the fuel tank cover is not completely closed, the limiting plate will prevent the hinged cover from being completely closed, thereby reminding the user to check and re-close the fuel tank cover, and ensuring the correct use state of the fuel tank cover. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the present application.
[0016] Figure 2 It is a schematic diagram of the fuel tank port shell, locking assembly and fuel tank cover of the present application.
[0017] Figure 3 It is a schematic diagram of the hinged cover, locking hole, drain pipe and limiting plate of the present application.
[0018] Figure 4 It is a connection relationship diagram of the arc-shaped plate and the drain pipe of the present application.
[0019] Label name in the figure: 1, fuel tank port shell, 2, hinged cover, 3, locking assembly, 4, locking hole, 5, sealing rubber strip one, 6, sealing rubber strip two, 7, fuel tank cover, 8, anti-loss rope, 9, identification, 10, arc-shaped plate, 11, drain pipe, 111, drain groove, 12, limiting plate. DETAILED DESCRIPTION
[0020] The above scheme is further described in conjunction with specific examples. It should be understood that these examples are used to illustrate the present application and are not intended to limit the scope of the present application. The implementation conditions used in the examples can be further adjusted according to the specific conditions of the manufacturer, and the implementation conditions not mentioned are usually the conditions in the conventional experiments.
[0021] A car fuel tank cap with dustproof and waterproof functions, as shown in Figures 1-4 , comprises a fuel tank port shell 1 and a hinged cover 2, the fuel tank port shell 1 is the assembly carrier of the present fuel tank cap 7, the fuel tank port shell 1 is a whole rectangular shell, the front side of the fuel tank port shell 1 is a circular recess for a fueling port, the edge of the recess on the front side of the fuel tank port shell 1 is provided with a shallow clamping groove, the hinged cover 2 is rotatably installed on one side of the front part of the fuel tank port shell, and a sealing extrusion surface matching the clamping groove is provided on the side of the hinged cover 2 close to the fuel tank port shell 1; further comprising a locking assembly 3, a lock hole 4, a sealing rubber strip 1 5, a sealing rubber strip 2 6 and a fuel tank cap 7, the locking assembly 3 is arranged in the recess on the front side of the fuel tank port shell 1, the lock hole 4 is arranged on the hinged cover 2, the locking assembly 3 cooperates with the lock hole 4 to enable the hinged cover 2 to be stably closed on the fuel tank port shell, the sealing rubber strip 1 5 and the sealing rubber strip 2 6 are arranged on the clamping groove of the front side of the fuel tank port shell 1, the sealing rubber strip 1 5 and the sealing rubber strip 2 6 are arranged in two circles and fixed on the clamping groove of the fuel tank port shell 1, the fuel tank cap 7 is arranged on the circular fueling port in the recess on the front side of the fuel tank port shell 1, the fuel tank cap 7 is used to close the fueling port of the fuel tank port shell 1, the hinged cover 2 is rotatably closed on the front side of the fuel tank cap 7 to provide protection, the sealing extrusion surface on the hinged cover 2 extrudes on the sealing rubber strip 1 5 and the sealing rubber strip 2 6, the locking assembly 3 is inserted into the lock hole 4 to be locked, and the fuel tank port shell 1 and the hinged cover 2 can be sealed and closed, thereby achieving the dustproof and waterproof effects of the fuel tank cap 7.
[0022] As shown in Figure 1 and Figure 2 , the fuel tank port shell 1 is provided with an anti-loss rope 8 in the recess at the fuel tank cap 7, the anti-loss rope 8 is arranged between the fuel tank port shell 1 and the cap body of the fuel tank cap 7, and the anti-loss rope 8 is used to reduce the loss of the fuel tank cap 7; the fuel tank port shell 1 is provided with an identification 9 at the oil inlet of the fuel tank cap 7, the identification 9 is used to prompt whether the fuel tank cap 7 is tightened in place at the fuel tank port shell 1, and the fuel tank cap 7 is provided with an arrow indicating the turning direction of the switch.
[0023] As shown in Figure 1 , Figure 3 and Figure 4As shown, the top of the sealing extrusion surface of the hinged cover 2 is provided with an arc-shaped plate 10, which is a plate body recessed from both ends to the middle. The middle of the arc-shaped plate 10 is provided with a plurality of drain pipes 11, which are connected to the bottom surface of the sealing extrusion surface after penetrating through the arc-shaped plate 10. The arc-shaped plate 10 is used to guide the water flow that may appear on the hinged cover 2 and discharge it to the outside of the hinged cover 2 through the drain pipes 11. The bottom edge of the clamping groove of the front side of the oil tank port shell body 1 is provided with a drain groove 111 adapted to the water outlet of the drain pipe 11, which facilitates the drain pipe 11 to guide the water flow that may fall on the arc-shaped plate 10 to the outside of the oil tank port shell body 1.
[0024] As shown in Figure 1 and Figure 3 Further comprising a limiting plate 12, which is fixed at the position corresponding to the oil tank cover 7 on the side of the hinged cover 2. The limiting plate 12 is composed of parallel and spaced support plates. The limiting plate 12 can be fitted and clamped into the knob protrusion of the oil tank cover 7, so that the correctly closed oil tank cover 7 can be stably clamped by the limiting plate 12, improving the stability of the oil tank cover 7 on the oil tank port shell body 1. When the oil tank cover 7 is not closed in place, the limiting plate 12 will press on the knob protrusion of the oil tank cover 7, so that the hinged cover 2 cannot be correctly closed on the oil tank port shell body 1.
[0025] When the user needs to refuel, first unlock the locking assembly 3 at the lock hole 4. After the locking assembly 3 is unlocked, the hinged cover 2 can be opened by rotating around the hinge between it and the oil tank port shell body 1, exposing the internal circular refueling port. At this time, the oil tank cover 7 is removed by unscrewing. Since the anti-loss rope 8 is provided between the oil tank cover 7 and the oil tank port shell body 1, the oil tank cover 7 will not be easily lost even if it is removed. After refueling is completed, reinstall and screw back the oil tank cover 7, and ensure that it is tightened in place according to the direction indicated by the arrow on the identification 9. The switch turning direction arrow designed on the oil tank cover 7 and the identification 9 circumferentially provided at the oil inlet of the oil tank port shell body 1 can help the user to confirm whether the oil tank cover 7 has been correctly tightened. If the oil tank cover 7 is not completely closed, the limiting plate 12 will press on the knob protrusion of the oil tank cover 7, preventing the hinged cover 2 from being completely closed, thereby prompting the user to further tighten the oil tank cover 7. After the oil tank cover 7 is completely closed, the hinged cover 2 is closed smoothly. The sealing extrusion surface on the hinged cover 2 will tightly fit into the clamping groove of the recessed edge on the front side of the oil tank port shell body 1. The double sealing of the sealing rubber strip one 5 and the sealing rubber strip two 6 can effectively prevent dust and water from entering the oil tank. At the same time, the drain pipes 11 on the top of the arc-shaped plate 10 can guide any water flow that may accumulate on the hinged cover 2, and discharge the water to the outside through the drain groove 111, avoiding water penetration into the oil tank port shell body 1. Finally, the locking assembly 3 is used to stably lock the hinged cover 2 on the oil tank port shell body 1, thereby completing the entire closing process.
[0026] While the disclosure has been illustrated and described with reference to certain exemplary embodiments thereof, it will be understood by those skilled in the art that various changes in form and details can be made therein without departing from the spirit and scope of the disclosure as defined by the appended claims and their equivalents. Therefore, the scope of the disclosure should not be limited to the embodiments described herein but should be accorded the full scope of the appended claims and their equivalents.
Claims
1. An automobile fuel tank cap with dustproof and waterproof functions, comprising a fuel tank port shell (1) and a hinged cap (2), the fuel tank port shell (1) is a whole rectangular shell, the front side of the fuel tank port shell (1) is a circular refueling port groove, the front side groove edge of the fuel tank port shell (1) is provided with a shallow clamping groove, the hinged cap (2) is rotatably installed on one side of the front of the fuel tank port shell, and a sealing extrusion surface matching the clamping groove is arranged on the side of the hinged cap (2) close to the fuel tank port shell (1). characterized in that Further comprising a locking assembly (3), a lock hole (4), a sealing rubber strip (5), a sealing rubber strip (6) and a fuel tank cap (7), the locking assembly (3) is arranged in the groove on the front side of the fuel tank port shell (1), the lock hole (4) is arranged on the hinged cap (2), the locking assembly (3) cooperates with the lock hole (4) to enable the hinged cap (2) to be stably closed on the fuel tank port shell, the sealing rubber strip (5) and the sealing rubber strip (6) are arranged on the clamping groove of the front side of the fuel tank port shell (1), the sealing rubber strip (5) and the sealing rubber strip (6) are arranged in two circles and fixed on the clamping groove of the fuel tank port shell (1), and the fuel tank cap (7) is installed at the circular refueling port in the groove of the fuel tank port shell (1), and the fuel tank cap (7) is used to close the refueling port of the fuel tank port shell (1).
2. The automobile fuel tank cap with dustproof and waterproof function according to claim 1, characterized in that, The fuel tank port shell (1) is provided with an anti-loss rope (8) in the groove at the fuel tank cap (7), and the anti-loss rope (8) is arranged between the fuel tank port shell (1) and the cap of the fuel tank cap (7).
3. The automobile fuel tank cap with dustproof and waterproof function according to claim 2, characterized in that, The fuel tank port shell (1) is provided with an identification (9) at the oil inlet of the fuel tank cap (7), and the fuel tank cap (7) is provided with an arrow indicating the turning direction of the switch.
4. The automobile fuel tank cap with dustproof and waterproof function according to claim 3, characterized in that, The top of the sealing extrusion surface of the hinged cap (2) is provided with an arc-shaped plate (10), the arc-shaped plate (10) is a plate body recessed from both ends to the middle, a plurality of drain pipes (11) are arranged in the middle of the arc-shaped plate (10), and the drain pipes (11) are connected to the bottom surface of the sealing extrusion surface after penetrating through the arc-shaped plate (10).
5. The automobile fuel tank cap with dustproof and waterproof function according to claim 4, characterized in that, The fuel tank port shell (1) is provided with a drain groove (111) matching the water outlet of the drain pipe (11) at the edge of the clamping groove of the front side.
6. The automobile fuel tank cap with dustproof and waterproof function according to claim 5, characterized in that, Further comprising a limiting plate (12), the limiting plate (12) is fixed on the side of the hinged cap (2) corresponding to the position of the fuel tank cap (7), the limiting plate (12) is composed of parallel and spaced support plates, and the limiting plate (12) can be matched and clamped into the knob protrusion of the fuel tank cap (7).