A kind of ash filter structure directly connected with oil tank diagnosis system

Abstract

This utility model relates to the technical field of automotive fuel tank accessories, specifically a filter structure for direct connection to a fuel tank diagnostic system. It includes a filter structure body and a fuel tank diagnostic system. The filter structure body has a sealing cover at its upper end, and a first connecting pipe is integrally mounted on the cover. A fixing member is located at the end of the first connecting pipe, and the fixing member has a pipe fitting seat integrally formed with the first connecting pipe. Symmetrically, integrally formed snap-fit ​​positioning seats are also provided between the pipe fitting seat and the fixing member. A fastening hook is also integrally mounted on the upper end of the fixing member. This filter structure for direct connection to the fuel tank diagnostic system reduces the number of intermediate pipes, joints, clamps, and other parts connecting the filter and the diagnostic system, achieving cost reduction and efficiency improvement. It also saves production steps and processes, and the connection between the filter and the diagnostic system is more stable and reliable.

Description

Technical Field

[0001] This utility model relates to the technical field of automotive fuel tank accessories, specifically a ash filter structure that is directly connected to a fuel tank diagnostic system. Background Technology

[0002] A fuel tank diagnostic system typically refers to a suite of tools and technologies used to detect and monitor the condition of a vehicle's fuel system, ensuring its proper functioning. It can identify various fuel supply-related problems, such as fuel leaks, fuel pump malfunctions, and sensor errors. The carbon canister, part of the vehicle's fuel evaporation control system, is primarily used to capture and store fuel vapors evaporating from the fuel tank, preventing these vapors from being directly released into the atmosphere and thus reducing environmental pollution. By connecting the fuel tank diagnostic system to the carbon canister, effective monitoring and maintenance can ensure effective control of fuel vapors. The fuel tank diagnostic system may also connect to an ash filter structure for further filtration of the gases emitted from the carbon canister, purifying impurities from the fuel or air.

[0003] Existing fuel tank diagnostic systems typically require a section of piping, connectors, clamps, and other components for connection to the ash filter. This wastes some of the development and application of these components, failing to achieve the goals of cost savings and reduced development. Therefore, it is essential to develop an ash filter structure that directly connects to the fuel tank diagnostic system. Utility Model Content

[0004] The purpose of this utility model is to provide a ash filter structure that can be directly connected to a fuel tank diagnostic system, so as to solve the problem mentioned in the background art that the fuel tank diagnostic system and the ash filter on the market usually require a section of pipeline with connectors, clamps and other parts for connection, which to a certain extent wastes the development and application of parts and fails to achieve the purpose of saving costs and reducing development.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a ash filter structure directly connected to a fuel tank diagnostic system, comprising an ash filter structure body and a fuel tank diagnostic system. The upper end of the ash filter structure body is provided with a sealing cover, and the upper cover is integrally provided with a first connecting pipe. The end of the first connecting pipe is provided with a fixing member. The fixing member is provided with a pipe fitting snap-fit ​​seat integrally formed with the first connecting pipe. A snap-fit ​​positioning seat integrally formed is also symmetrically provided between the pipe fitting snap-fit ​​seat and the fixing member. The upper end of the fixing member is also integrally provided with a fastening hook. The side of the fuel tank diagnostic system is integrally provided with a second connecting pipe corresponding to the position of the pipe fitting snap-fit ​​seat. The outer ring of the fuel tank diagnostic system is integrally provided with a positioning frustum. The bottom of the fuel tank diagnostic system is provided with a carbon canister connector, and the other side of the fuel tank diagnostic system is connected to a positioning member.

[0006] Preferably, a reinforcing rib is integrally provided between the top cover and the first connecting pipe, and the reinforcing rib has a triangular structure.

[0007] Preferably, the first connecting pipe has an L-shaped structure, and the first connecting pipe is sealed and snapped together with the second connecting pipe.

[0008] Preferably, the fixing member is securely sleeved on the outside of the second connecting pipe, and anti-slip protrusions are integrally provided on the left and right outer sides of the fixing member.

[0009] Preferably, the fastening hook is L-shaped and is fastened to the upper surface of the positioning platform.

[0010] Preferably, the snap-fit ​​positioning seat is located at the upper and lower ends of the fixing member, and the inner side of the snap-fit ​​positioning seat is in close contact with the outside of the second connecting pipe.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. The ash filter structure that directly connects to the fuel tank diagnostic system reduces the number of intermediate pipes, joints, clamps and other parts connecting the ash filter and the diagnostic system, achieving the goal of cost reduction and efficiency improvement. It also saves production steps and processes, and the connection between the ash filter and the diagnostic system is more stable and reliable.

[0013] 2. The ash filter structure that directly connects to the fuel tank diagnostic system has an integral fixing component on the top cover. The fixing component is snapped into contact with the fuel tank diagnostic system and locked in place by fastening hooks. This ensures the stability of the direct connection between the ash filter and the diagnostic system. The structure is relatively simple, easy to manufacture, and effectively reduces production costs. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of an existing ash filter structure;

[0015] Figure 2 This is a side view of a ash filter structure that is directly connected to a fuel tank diagnostic system according to this utility model.

[0016] Figure 3 This is a schematic diagram of the fastener structure of the ash filter structure that is directly connected to the fuel tank diagnostic system according to this utility model;

[0017] Figure 4 This is a schematic diagram showing the position of the fastening hook relative to the fixing component of the ash filter structure that directly connects to the fuel tank diagnostic system according to this utility model.

[0018] In the diagram: 1. Main body of the ash filter structure; 2. Top cover; 3. First connecting pipe fitting; 4. Reinforcing rib; 5. Oil tank diagnostic system; 501. Positioning component; 502. Positioning frustum; 503. Second connecting pipe fitting; 504. Carbon canister connecting component; 6. Fixing component; 601. Anti-slip protrusion; 602. Fastening hook; 603. Snap-fit ​​positioning seat; 604. Pipe fitting snap-fit ​​seat. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1-4This utility model provides a technical solution: a filter structure for direct connection to a fuel tank diagnostic system, comprising a filter structure body 1 and a fuel tank diagnostic system 5. The filter structure body 1 has a sealing cover 2 at its upper end, and a first connecting pipe 3 is integrally formed on the cover 2. A fixing member 6 is provided at the end of the first connecting pipe 3, and a pipe fitting seat 604 integrally formed with the first connecting pipe 3 is provided on the fixing member 6. A reinforcing rib 4 is integrally formed between the cover 2 and the first connecting pipe 3, and the reinforcing rib 4 has a triangular structure. This structure, by integrally forming the cover 2, the first connecting pipe 3, and the fixing member 6, allows for direct connection between the filter structure body 1 and the fuel tank diagnostic system 5. The connecting and reinforcing ribs 4 are used to improve the stability of the first connecting pipe fitting 3, thereby ensuring the stability of the structure of the fixing member 6. A snap-fit ​​positioning seat 603, integrally formed, is also symmetrically provided between the pipe fitting snap-fit ​​seat 604 and the fixing member 6. Furthermore, a fastening hook 602 is integrally provided at the upper end of the fixing member 6. A second connecting pipe fitting 503, corresponding to the position of the pipe fitting snap-fit ​​seat 604, is integrally provided on the side of the fuel tank diagnostic system 5. The first connecting pipe fitting 3 has an L-shaped structure, and the first connecting pipe fitting 3 and the second connecting pipe fitting 503 are sealed and snap-fitted together. This structure, through the butt joint treatment of the first connecting pipe fitting 3 and the second connecting pipe fitting 503, allows the main body 1 of the ash filter structure to be connected to the fuel tank diagnostic system 5. The fastener 6 secures the second connecting pipe 503, ensuring the stability and reliability of the direct connection. The fastener 6 is tightly fitted onto the outside of the second connecting pipe 503, and anti-slip protrusions 601 are integrally provided on the left and right sides of the fastener 6. This structure allows for easy pushing and tightening of the fastener 6 relative to the second connecting pipe 503 through the anti-slip protrusions 601. The outer ring of the fuel tank diagnostic system 5 is integrally provided with a positioning frustum 502, and the fastening hook 602 is L-shaped and tightly overlaps the upper surface of the positioning frustum 502. This structure ensures that when the fastener 6 is tightly fitted onto the outside of the second connecting pipe 503, the fastening hook 602 engages. The positioning frustum 502 ensures the stability of the connection between the fixing part 6 and the housing of the fuel tank diagnostic system 5. The bottom of the fuel tank diagnostic system 5 is provided with a carbon canister connector 504, which is used for the connection between the fuel tank diagnostic system 5 and the carbon canister. On the other side of the fuel tank diagnostic system 5, a positioning part 501 is connected to ensure the stable installation of the fuel tank diagnostic system 5. The snap-fit ​​positioning seat 603 is located at the upper and lower ends of the fixing part 6, and the inner side of the snap-fit ​​positioning seat 603 is tightly fitted with the outer side of the second connecting pipe 503. This structure can use the snap-fit ​​positioning seat 603 to limit the snap-fit ​​between the fixing part 6 and the second connecting pipe 503, ensuring the accuracy of the connection positioning.

[0021] Working principle: When using the ash filter structure that directly connects to the fuel tank diagnostic system, the top cover 2, the first connecting pipe 3, the reinforcing rib 4, and the fixing part 6 are first integrally injection molded. After the top cover 2 is assembled onto the main body 1 of the ash filter structure, the fixing part 6 is fitted onto the second connecting pipe 503 on the side of the fuel tank diagnostic system 5. The anti-slip protrusion 601 allows the fixing part 6 to be easily pushed. As the second connecting pipe 503 is engaged with the pipe engagement seat 604, the fastening hook 602 is engaged onto the positioning frustum 502. The engagement positioning seat 603 holds the two sides of the second connecting pipe 503, ensuring the fastness of the fixing part 6 and the fuel tank diagnostic system 5, thereby realizing the direct connection between the main body 1 of the ash filter structure and the fuel tank diagnostic system 5. After the fuel tank diagnostic system 5 is assembled with the carbon canister through the carbon canister connecting part 504, the positioning part 501 is used to install the fuel tank diagnostic system 5, thus completing a series of tasks.

[0022] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A dust filter structure directly connected to a fuel tank diagnostic system, comprising a dust filter structure body (1) and a fuel tank diagnostic system (5), characterized in that: The upper end of the main body (1) of the ash filter structure is provided with a sealed upper cover (2), and the upper cover (2) is integrally provided with a first connecting pipe (3), and the end of the first connecting pipe (3) is provided with a fixing member (6). The fixing member (6) is provided with a pipe fitting snap seat (604) integrally formed with the first connecting pipe (3), and a snap positioning seat (603) integrally formed is also symmetrically provided between the pipe fitting snap seat (604) and the fixing member (6). The upper end of the fixing member (6) is also integrally provided with a fastening hook (602). The side of the fuel tank diagnostic system (5) is integrally provided with a second connecting pipe (503) corresponding to the position of the pipe fitting snap seat (604), and the outer ring of the fuel tank diagnostic system (5) is integrally provided with a positioning frustum (502). The bottom of the fuel tank diagnostic system (5) is provided with a carbon canister connecting member (504), and the other side of the fuel tank diagnostic system (5) is connected with a positioning member (501).

2. The ash filter structure of claim 1, wherein: The upper cover (2) and the first connecting pipe (3) are integrally provided with a reinforcing rib (4), and the reinforcing rib (4) is a triangular structure.

3. The ash filter structure of claim 1, wherein: The first connecting pipe (3) has an L-shaped structure, and the first connecting pipe (3) and the second connecting pipe (503) are sealed and snapped together.

4. The ash filter structure of claim 1, wherein: The fastener (6) is securely sleeved on the outside of the second connecting pipe (503), and anti-slip protrusions (601) are integrally provided on the left and right sides of the fastener (6).

5. The ash filter structure of claim 1, wherein: The fastening hook (602) is L-shaped and is fastened to the upper surface of the positioning frustum (502).

6. The ash filter structure of claim 1, wherein: The snap-fit ​​positioning seat (603) is located at the upper and lower ends of the fixing member (6), and the inner side of the snap-fit ​​positioning seat (603) is in close contact with the outside of the second connecting pipe (503).

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