Oil filling port capable of preventing foreign matter from invading

Abstract

The utility model discloses an oil filling port capable of preventing foreign matters from invading, which comprises an oil filling port main body, a filter cartridge, a sealing ring, a cleaning ring and a positioning cylinder are arranged in the oil filling port main body, the inner wall of the oil filling port main body is fixedly connected with a carrying ring, the top end of the filter cartridge is lapped on the top of the carrying ring, the surface of the filter cartridge is provided with impurity filtering holes, and the impurity filtering holes are communicated with the sealing ring. The sealing ring is lapped at the top of the filter cartridge, a first rubber sealing lip is fixedly connected to the inner wall of the sealing ring, the cleaning ring is lapped at the top of the sealing ring, and cleaning bristles are fixedly connected to the inner wall of the cleaning ring. Through mutual cooperation of the filter cylinder, the sealing ring, the cleaning ring and the positioning cylinder, cleaning of the surface of the oil gun is achieved, dust and particulate matter on the oil gun are effectively removed, the foreign matter is prevented from entering an oil tank along with fuel oil, the fuel oil entering the oil tank can be filtered, the impurity particles are further intercepted, and the service life of the oil gun is prolonged. And foreign matters are prevented from entering the fuel tank, so that the purity and the quality of fuel are ensured.

Description

Technical Field

[0001] This utility model relates to the technical field of fuel tank accessories, specifically to a fuel inlet that can prevent foreign objects from entering. Background Technology

[0002] As a crucial component of the fuel tank, the fuel filler cap plays a vital role in safely and efficiently injecting fuel into the tank. However, in practical use, the fuel filler cap often faces several challenges, the most prominent being how to prevent foreign objects from entering the fuel tank. Traditional fuel filler cap designs are often quite simple, lacking necessary filtration and protection mechanisms. This allows foreign objects such as dust, impurities, and particulate matter adhering to refueling tools to easily enter the fuel tank along with the fuel during refueling. Once these foreign objects enter the fuel tank, they not only contaminate the fuel, affecting its purity and quality, but may also cause wear and damage to critical components inside the fuel system and engine, leading to a series of malfunctions and safety hazards.

[0003] The patented CN208069403U discloses a dustproof, capless oil filling port. When using this port, the oil gun is inserted from the outside, pushing open the first and second sealing plates to insert into the guide tube for oil filling. When the oil gun is removed, both the first and second sealing plates are hinged together by round pins, and under the action of a spring-loaded locking spring, the two sealing plates return to their original positions to seal the channel, thus completing the work of sealing the guide tube after oil filling. The first sealing plate serves to prevent dust and protect the internal structure, while the second sealing plate has the functions of preventing leakage and protecting the internal structure. The two sealing plates constitute a dustproof, capless structure, which is reasonable in design. Oil can be filled simply by inserting the oil gun, and the double caps spring back to seal the dustproof seal when the oil gun is pulled out, making it very convenient to use.

[0004] Although the dustproof, capless refill port is designed with two layers of sealing covers, which can prevent dust and particulate matter from entering to some extent, its protective ability against dust and particulate matter already contaminated on the surface of the refill nozzle is relatively weak. During the refilling process, the refill nozzle needs to be inserted into the refill port. If the surface of the refill nozzle is not clean enough, foreign objects can easily be brought into the fuel tank.

[0005] Therefore, it is necessary to invent an oil inlet that can prevent foreign objects from entering in order to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to provide an oil inlet that can prevent foreign objects from entering, thereby solving the problems in the aforementioned technology.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an oil inlet that prevents foreign matter from entering, comprising an oil inlet body, wherein a filter cylinder, a sealing ring, a cleaning ring, and a positioning cylinder are disposed inside the oil inlet body, a mounting ring is fixedly connected to the inner wall of the oil inlet body, the top of the filter cylinder rests on the top of the mounting ring, the surface of the filter cylinder has filter holes, the sealing ring rests on the top of the filter cylinder, a first rubber sealing lip is fixedly connected to the inner wall of the sealing ring, the cleaning ring rests on the top of the sealing ring, cleaning bristles are fixedly connected to the inner wall of the cleaning ring, the top of the positioning cylinder is threadedly connected to the outer side of the oil inlet body, the bottom of the positioning cylinder abuts against the top of the cleaning ring, and a through hole is provided in the middle of the positioning cylinder.

[0008] By integrating components such as filter cartridges, sealing rings, cleaning rings, and positioning cylinders, foreign objects are effectively prevented from entering, ensuring the cleanliness and safety of the oil filling port.

[0009] Preferably, the number of filter holes is set to multiple, and the multiple filter holes are evenly distributed on the surface of the filter cylinder.

[0010] During oil filling, the oil can pass through the filter holes and flow into the oil tank, while impurities and foreign objects will be trapped inside the filter cartridge.

[0011] Preferably, the number of the first rubber sealing lips is set to multiple, and the multiple first rubber sealing lips are distributed in a straight line array from top to bottom.

[0012] Multiple No. 1 rubber sealing lips are arranged in a straight line from top to bottom, which enhances the sealing effect and reduces the possibility of oil leakage during the oil injection process.

[0013] Preferably, the cleaning bristles are provided in multiple groups, and the multiple groups of cleaning bristles are arranged in a circular array. Each group of cleaning bristles contains multiple bristles, and the multiple cleaning bristles are arranged in a straight array from top to bottom.

[0014] When the nozzle of the oil gun passes through the cleaning ring, the cleaning bristles will brush and clean the surface of the nozzle, effectively removing dust and particles from the surface of the oil gun.

[0015] Preferably, a loading plate is fixedly connected to the outer side of the oil inlet body, and mounting holes are provided at the four corners of the surface of the loading plate.

[0016] By setting up a loading plate, it is easy to fix the oil filling port on the surface of the oil tank.

[0017] Preferably, a sealing cap is threadedly connected to the top of the oil inlet body, and a handle is fixedly connected to the top of the sealing cap.

[0018] The sealing cap is designed to seal the oil inlet, preventing external impurities from entering. The handle makes opening and closing the sealing cap more convenient.

[0019] Preferably, a sealing plug is fixedly connected to the inner top surface of the sealing cover, and a second rubber sealing lip is fixedly connected to the outer side of the sealing plug. The second rubber sealing lip is interference-fitted with the inner wall of the positioning cylinder.

[0020] The combination of the sealing plug and the No. 2 rubber sealing lip further enhances the sealing performance of the sealing cap to the oil inlet, ensuring that the oil will not leak.

[0021] Preferably, the number of the second rubber sealing lips is set to multiple, and the multiple second rubber sealing lips are distributed in a straight line array from top to bottom.

[0022] Multiple No. 2 rubber sealing lips are arranged in a straight line from top to bottom, which helps to enhance the sealing effect.

[0023] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0024] 1. Through the coordinated operation of the filter cartridge, sealing ring, cleaning ring, and positioning cylinder, not only is the surface of the fuel nozzle cleaned, effectively removing dust and particulate matter and preventing these foreign objects from entering the fuel tank with the fuel, but the fuel entering the fuel tank is also filtered, further intercepting impurity particles. This ensures the purity and quality of the fuel, avoids wear and damage to key components such as the fuel system and engine inside the fuel tank caused by foreign objects, and extends the service life of the equipment.

[0025] 2. The loading plate facilitates the installation and fixation of the entire oil filling port. At the same time, the sealing cap, sealing plug, and No. 2 rubber sealing lip enhance the sealing performance of the oil filling port and improve the safety and reliability of the equipment. Attached Figure Description

[0026] Figure 1 This is a cross-sectional view of the structure of this utility model;

[0027] Figure 2 This is a schematic diagram of the overall structure of this utility model;

[0028] Figure 3 This is an exploded view of the structure of this utility model;

[0029] Figure 4 This is a schematic diagram of the structure of the filter cartridge of this utility model;

[0030] Figure 5 This is a schematic diagram of the sealing ring of this utility model;

[0031] Figure 6 This is a schematic diagram of the structure of the cleaning ring of this utility model;

[0032] Figure 7This is a schematic diagram of the positioning cylinder of this utility model;

[0033] Figure 8 This is a cross-sectional view of the sealing cap of this utility model.

[0034] Explanation of reference numerals in the attached figures:

[0035] 1. Oil inlet body; 2. Filter cartridge; 3. Sealing ring; 4. Cleaning ring; 5. Positioning cylinder; 6. Mounting ring; 7. Filter hole; 8. No. 1 rubber sealing lip; 9. Cleaning bristles; 10. Through hole; 11. Loading plate; 12. Sealing cover; 13. Handle; 14. Sealing plug; 15. No. 2 rubber sealing lip. Detailed Implementation

[0036] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0037] This utility model provides, for example Figure 1-8 The oil inlet shown is a type of oil inlet that prevents foreign matter from entering. It includes an oil inlet body 1, inside which are arranged a filter cylinder 2, a sealing ring 3, a cleaning ring 4, and a positioning cylinder 5. A mounting ring 6 is fixedly connected to the inner wall of the oil inlet body 1. The top of the filter cylinder 2 rests on the top of the mounting ring 6. The surface of the filter cylinder 2 has filter holes 7. The sealing ring 3 rests on the top of the filter cylinder 2. A rubber sealing lip 8 is fixedly connected to the inner wall of the sealing ring 3. The cleaning ring 4 rests on the top of the sealing ring 3. Cleaning bristles 9 are fixedly connected to the inner wall of the cleaning ring 4. The top of the positioning cylinder 5 is threaded to the outer side of the oil inlet body 1. The bottom of the positioning cylinder 5 abuts against the top of the cleaning ring 4. A through hole 10 is opened in the middle of the positioning cylinder 5.

[0038] In one aspect of this embodiment, the number of filter holes 7 is set to multiple, and the multiple filter holes 7 are evenly distributed on the surface of the filter cylinder 2. The number of first rubber sealing lips 8 is set to multiple, and the multiple first rubber sealing lips 8 are arranged in a straight array from top to bottom. The number of cleaning bristles 9 is set to multiple, and the multiple sets of cleaning bristles 9 are arranged in a ring array. The number of cleaning bristles 9 in each set is set to multiple, and the multiple cleaning bristles 9 are arranged in a straight array from top to bottom. A loading plate 11 is fixedly connected to the outside of the oil inlet body 1. The loading plate 11 has mounting holes at the four corners of its surface. A sealing cap 12 is threadedly connected to the top of the oil inlet body 1. A handle 13 is fixedly connected to the top of the sealing cap 12. A sealing plug 14 is fixedly connected to the inner top surface of the sealing cap 12. A second rubber sealing lip 15 is fixedly connected to the outside of the sealing plug 14. The second rubber sealing lip 15 is interference-fitted with the inner wall of the positioning cylinder 5. The number of second rubber sealing lips 15 is set to multiple, and the multiple second rubber sealing lips 15 are arranged in a straight array from top to bottom.

[0039] Working principle of this utility model:

[0040] Refer to the instruction manual appendix Figure 1-8 When using this utility model, first open the sealing cover 12 by screwing the handle 13, and then insert the oil gun into the oil inlet body 1. During the insertion process, the oil gun nozzle passes through the through hole 10, cleaning ring 4 and sealing ring 3 in the middle of the positioning cylinder 5 from top to bottom, and finally extends into the filter cylinder 2.

[0041] At this time, the cleaning bristles 9 on the inner wall of the cleaning ring 4 will brush and clean the surface of the fuel nozzle, effectively removing dust and particles from the surface of the fuel nozzle and preventing these foreign objects from entering the fuel tank with the fuel. When the fuel nozzle passes through the sealing ring 3, the No. 1 rubber sealing lip 8 on the inner wall of the sealing ring 3 forms an interference connection with the surface of the fuel nozzle, thereby playing a sealing role and preventing fuel leakage during the fuel filling process.

[0042] When the fuel is started to be filled, the fuel will pass through the inside of the filter cartridge 2 and then be discharged into the fuel tank through the impurity filter hole 7. The filter cartridge 2 filters and intercepts impurity particles, effectively preventing dust and impurities from entering the fuel tank and ensuring the purity and quality of the fuel.

[0043] When cleaning the internal components of the oil inlet, first unscrew the positioning cylinder 5 and remove it from the oil inlet body 1. Since the bottom of the positioning cylinder 5 is pressed against the top of the cleaning ring 4, the cleaning ring 4, sealing ring 3 and filter cylinder 2 can be easily removed after the positioning cylinder 5 is removed. After cleaning and drying these components, they can be reassembled in order.

Claims

1. An oil inlet that prevents foreign matter from entering, comprising an oil inlet body (1), characterized in that: The oil inlet body (1) is equipped with a filter cylinder (2), a sealing ring (3), a cleaning ring (4) and a positioning cylinder (5). The inner wall of the oil inlet body (1) is fixedly connected to a mounting ring (6). The top of the filter cylinder (2) rests on the top of the mounting ring (6). The surface of the filter cylinder (2) is provided with a filter hole (7). The sealing ring (3) rests on the top of the filter cylinder (2). A rubber sealing lip (8) is fixedly connected to the inner wall of the sealing ring (3). The cleaning ring (4) rests on the top of the sealing ring (3). A cleaning brush bristle (9) is fixedly connected to the inner wall of the cleaning ring (4). The top of the positioning cylinder (5) is threaded to the outer side of the oil inlet body (1). The bottom of the positioning cylinder (5) abuts against the top of the cleaning ring (4). A through hole (10) is provided in the middle of the positioning cylinder (5).

2. The oil inlet port for preventing foreign matter intrusion according to claim 1, characterized in that: The number of the filter holes (7) is set to multiple, and the multiple filter holes (7) are evenly distributed on the surface of the filter cylinder (2).

3. The oil inlet port for preventing foreign matter intrusion according to claim 1, characterized in that: The number of the first rubber sealing lip (8) is set to multiple, and the multiple first rubber sealing lips (8) are distributed in a straight line array from top to bottom.

4. The oil inlet port for preventing foreign matter intrusion according to claim 1, characterized in that: The cleaning bristles (9) are provided in multiple groups, and the multiple groups of cleaning bristles (9) are arranged in a ring array. The number of cleaning bristles (9) in each group is set to multiple, and the multiple cleaning bristles (9) are arranged in a straight array from top to bottom.

5. The oil inlet port for preventing foreign matter intrusion according to claim 1, characterized in that: The oil inlet body (1) is fixedly connected to a loading plate (11) on the outside, and the loading plate (11) has mounting holes at all four corners.

6. The oil inlet port for preventing foreign matter intrusion according to claim 1, characterized in that: The top of the oil inlet body (1) is threaded with a sealing cap (12), and the top of the sealing cap (12) is fixedly connected with a handle (13).

7. An oil inlet port for preventing foreign matter intrusion according to claim 6, characterized in that: A sealing plug (14) is fixedly connected to the inner top surface of the sealing cap (12), and a second rubber sealing lip (15) is fixedly connected to the outer side of the sealing plug (14). The second rubber sealing lip (15) is interference-fitted to the inner wall of the positioning cylinder (5).

8. An oil inlet port for preventing foreign matter intrusion according to claim 7, characterized in that: The number of the second rubber sealing lip (15) is set to multiple, and the multiple second rubber sealing lips (15) are distributed in a straight line array from top to bottom.

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