A sealing structure of an air cleaner

Abstract

The utility model discloses a kind of sealing structure of air cleaner, including cylinder, cylinder cover, the top of the cylinder is provided with annular groove, detachable fixedly connected with assembly seat in the inside of annular groove, the top and bottom of the assembly seat are fixedly embedded with sealing elastic rubber membrane, the top of the assembly seat is fixedly interconnected with connecting pipe;The top of the assembly seat is equipped with filter core by limiting frame;Multiple snap components are jointly installed between the cylinder cover and the cylinder.The utility model in, adopt inflatable dynamic sealing structure, sealing elastic rubber membrane is inflated and deformed by air pressure effect, respectively, and filter core installation ring and annular groove inner wall are pressed tightly, form double seal, significantly improve the sealing reliability;While setting air pressure detection component real-time monitoring sealing cavity pressure, can find leakage anomaly and alarm in time, greatly improve the protection level and system operation safety of engine.

Description

Technical Field

[0001] This utility model relates to the field of air filter technology, and in particular to a sealing structure for an air filter. Background Technology

[0002] An air filter is a device used to filter impurities from the air entering an engine or other equipment, ensuring that the air entering the system is clean. It mainly consists of two parts: a housing and a filter element. The filter element removes dust, sand, and other impurities from the air, reducing the amount of harmful contaminants entering the engine or equipment. This protects the engine or equipment components from wear and contamination, extending their service life. Air filters play a crucial role in the engine's intake system, and their performance and design directly affect the engine's performance and reliability.

[0003] A search revealed that patent CN222641494U discloses an air filter that can be installed without the need for auxiliary tools or bolts. The installation operation is simple and quick, making it easy to disassemble and replace the air filter body later, thus achieving the purpose of facilitating the disassembly and assembly of the air filter body.

[0004] However, the aforementioned device has the following drawbacks: it still uses a traditional press-fit sealing structure, but this structure has a significant flaw—it's difficult to detect leaks in a timely manner. Once a leak occurs, unfiltered air will be directly drawn into the engine through the leak point. If not addressed promptly, this will cause abnormal wear on critical components such as pistons, cylinders, and bearings, and may even lead to serious malfunctions like cylinder scoring. Therefore, further improvements are needed. To this end, we propose a sealing structure for an air filter. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a sealing structure for an air filter.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a sealing structure for an air filter, comprising a cylinder and a cylinder cover, wherein an annular groove is provided at the top of the cylinder, and an assembly base is detachably and fixedly connected inside the annular groove, wherein a sealing elastic rubber membrane is fixedly embedded at the top and bottom of the assembly base, and a connecting pipe is fixedly connected to the top of the assembly base.

[0007] The top limiting frame of the assembly base is equipped with a filter element;

[0008] Multiple fastening assemblies are installed between the cylinder cover and the cylinder body;

[0009] Multiple pressure blocks are fixedly connected to the bottom of the inner surface of the cylinder cover, and the pressure blocks are matched with the filter element;

[0010] The outer surface of the cylinder cover is evenly provided with multiple air holes that penetrate into the interior;

[0011] The top of the cylinder cover is threadedly connected to an air nozzle assembly, and the bottom of the air nozzle assembly is threadedly connected to a tee with the connecting pipe. The remaining port of the tee is fixedly connected to an air pressure detection assembly.

[0012] Furthermore, the bottom and inner wall of the mounting base are fixedly connected with multiple reinforcing rods, which can increase the strength of the mounting base and ensure its performance.

[0013] Furthermore, the connecting pipe includes a first flexible hose, which is fixedly connected to the mounting base. A first connector is fixedly connected to the top of the first flexible hose, and the first connector is connected to the tee with a sealing thread. The first connector facilitates the connection between the first flexible hose and the tee.

[0014] Furthermore, the filter element includes an installation ring, which is mounted on the mounting base and abuts against the pressure block. The bottom of the installation ring is fixedly connected to the filter element body, and the installation ring serves as the mounting base for the filter element body, facilitating the connection between the filter element body and the mounting base.

[0015] Furthermore, each of the aforementioned latching components includes a lock body and a hook body, with the lock body fixedly connected to the cylinder cap and the hook body fixedly connected to the cylinder body, enabling rapid assembly of the cylinder cap and the cylinder body.

[0016] Furthermore, the nozzle assembly includes a nozzle body, which is disposed above the cylinder cover. An installation tube is fixedly connected to the bottom of the nozzle body, and the installation tube passes through the cylinder cover and is threadedly connected to the cylinder cover. A second flexible tube is fixedly connected to the bottom of the installation tube, and a second connector is fixedly connected to the bottom of the second flexible tube. The second connector is threadedly connected to a tee. The second connector facilitates the connection between the nozzle body and the tee.

[0017] Furthermore, the air pressure detection component includes a third connector, which is connected to a tee with a sealed thread. One end of the third connector is fixedly connected to a third flexible hose, and one end of the third flexible hose is fixedly connected to an air pressure sensor. The third connector facilitates the connection between the air pressure sensor and the tee.

[0018] Furthermore, an exhaust pipe is fixedly connected to one side of the outer surface of the cylinder to facilitate the discharge of filtered gas.

[0019] The beneficial effects of this utility model are:

[0020] In use, this utility model adopts an inflatable dynamic sealing structure. The air pressure causes the sealing elastic rubber membrane to expand and deform, pressing the filter element mounting ring and the inner wall of the annular groove respectively to form a double seal, which significantly improves the sealing reliability. At the same time, an air pressure detection component is set up to monitor the pressure of the sealing cavity in real time, which can detect leakage abnormalities in time and alarm, greatly improving the protection level of the engine and the safety of system operation. Attached Figure Description

[0021] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the specific embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0023] Figure 2 This is a schematic cross-sectional view of the overall structure of this utility model;

[0024] Figure 3 For the present utility model Figure 2 Enlarged view of point A in the middle;

[0025] Figure 4 For the present utility model Figure 2 Enlarged view of point B in the middle.

[0026] The attached figures are labeled as follows:

[0027] 1. Cylinder body; 2. Hook body; 3. Lock body; 4. Mounting tube; 5. Nozzle body; 6. Cylinder cover; 7. Air hole; 8. Exhaust pipe; 9. Air pressure sensor; 10. Filter element body; 11. Second hose; 12. Second connector; 13. T-joint; 14. First connector; 15. First hose; 16. Third hose; 17. Third connector; 18. Mounting ring; 19. Pressure block; 20. Sealing elastic rubber diaphragm; 21. Annular groove; 22. Assembly base; 23. Reinforcing rod. Detailed Implementation

[0028] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0029] like Figures 1-4As shown, a sealing structure for an air filter is disclosed, comprising a cylinder 1 and a cylinder cover 6. An exhaust pipe 8 is fixedly connected to one side of the outer surface of the cylinder 1. An annular groove 21 is formed at the top of the cylinder 1. An assembly seat 22 is detachably fixedly connected inside the annular groove 21. The assembly seat 22 is fixed to the inner wall of the annular groove 21 by screws, facilitating the replacement of the assembly seat 22. A sealing elastic rubber membrane 20 is fixedly embedded at the top and bottom of the assembly seat 22. Multiple reinforcing rods 23 are fixedly connected to the bottom and inner wall of the assembly seat 22. The reinforcing rods 23 ensure the overall strength of the assembly seat 22 to guarantee its performance. A connecting pipe is fixedly connected to the top of the assembly seat 22. The connecting pipe includes a first flexible hose 15, which is fixedly connected to the assembly seat 22. A first connector 14 is fixedly connected to the top of the first flexible hose 15.

[0030] The top of the mounting base 22 is fitted with a filter element, which includes a mounting ring 18. The mounting ring 18 is fitted on the mounting base 22 and the bottom of the mounting ring 18 is fixedly connected to the filter element body 10.

[0031] Multiple latching assemblies are installed between the cylinder cover 6 and the cylinder body 1. Each latching assembly includes a lock body 3 and a hook body 2. The lock body 3 is fixedly connected to the cylinder cover 6, and the hook body 2 is fixedly connected to the cylinder body 1.

[0032] Multiple pressure blocks 19 are fixedly connected to the bottom of the inner surface of the cylinder cover 6, and the pressure blocks 19 abut against the top of the mounting ring 18.

[0033] The outer surface of the cylinder cover 6 is evenly provided with multiple air holes 7 that penetrate into the interior. In actual use, an air inlet pipe can be set up to replace the air holes 7 for air intake as needed, without affecting the implementation and innovation of the technical solution of this application.

[0034] The top of the cylinder cover 6 is threaded with an air valve assembly. The bottom of the air valve assembly and the connecting pipe are threaded together with a tee 13, and the first connector 14 is threadedly connected to the tee 13. The remaining interface of the tee 13 is fixedly connected to an air pressure detection component. The air valve assembly includes an air valve body 5, which is a key channel connecting the inside and outside of the tire. Its main function is to inflate and deflate the tire and maintain the sealing after inflation. It is a one-way valve, allowing only one-way gas flow to prevent internal gas leakage. It is applicable to this application. The air valve body 5 is located above the cylinder cover 6, and the bottom of the air valve body 5 is fixedly connected to an installation pipe 4. The mounting tube 4 passes through the cylinder cover 6 and is threadedly connected to the cylinder cover 6. A second flexible tube 11 is fixedly connected to the bottom of the mounting tube 4. A second connector 12 is fixedly connected to the bottom of the second flexible tube 11. The second connector 12 is sealed and threadedly connected to the tee 13. The air pressure detection component includes a third connector 17, which is sealed and threadedly connected to the tee 13. A third flexible tube 16 is fixedly connected to one end of the third connector 17. An air pressure sensor 9 is fixedly connected to one end of the third flexible tube 16. The air pressure sensor 9 can be a piezoresistive MEMS pressure sensor, which is electrically connected to the vehicle control system to facilitate signal transmission.

[0035] Working principle: First, the mounting ring 18 is placed on the mounting base 22, then the cylinder cover 6 is placed on top. The cylinder cover 6 is connected to the cylinder body 1 by the locking body 3 and the hook body 2. The pressure block 19 is pressed on the mounting ring 18. Then, the inflation device cooperates with the air nozzle body 5 to inject gas at a certain pressure into the system. The airflow passes through the second hose 11, the tee 13 and the first hose 15 and finally enters the cavity at the top of the mounting base 22. The sealing elastic rubber membranes 20 embedded on the upper and lower surfaces of the mounting base 22 expand and deform outward under the action of air pressure. The upper sealing elastic rubber membrane 20 tightly presses the mounting ring 18 of the filter element, while the lower sealing elastic rubber membrane 20 tightly adheres to the inner wall of the annular groove 21, thus forming two reliable inflatable dynamic sealing rings, with a sealing effect far superior to the traditional static compression method.

[0036] During use, outside air enters through the air hole 7 on the cylinder cover 6, is filtered by the filter element body 10, and then flows downward and is discharged through the exhaust pipe 8.

[0037] Meanwhile, the air pressure detection component connected to the three-way valve 13 monitors the pressure inside the inflation-sealed cavity in real time. The air pressure sensor 9 transmits the pressure data to an external monitoring system. This design serves a dual purpose: firstly, to ensure the inflation pressure is always maintained within the optimal sealing range; secondly, if a leak occurs in the sealing system, such as a ruptured elastic diaphragm, the pressure inside the cavity will drop abnormally, and the air pressure sensor 9 will immediately issue an alarm, prompting the user to perform maintenance. This timely maintenance significantly improves the engine's protection level and the system's reliability.

[0038] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A sealing structure for an air filter, comprising a cylinder (1) and a cylinder cover (6), characterized in that: The top of the cylinder (1) is provided with an annular groove (21), and an assembly base (22) is detachably fixedly connected inside the annular groove (21). A sealing elastic rubber membrane (20) is fixedly embedded at the top and bottom of the assembly base (22), and a connecting pipe is fixedly connected to the top of the assembly base (22). The top limiting frame of the mounting base (22) is equipped with a filter element; Multiple fastener assemblies are installed between the cap (6) and the body (1); The inner surface of the cylinder cover (6) is fixedly connected with a plurality of pressure blocks (19), and the pressure blocks (19) are matched with the filter element; The outer surface of the cylinder cover (6) is evenly provided with a plurality of air holes (7) that penetrate into the interior; The top of the cylinder cover (6) is threaded with an air nozzle assembly, and the bottom of the air nozzle assembly is threaded with a tee (13) together with the connecting pipe. The remaining interface of the tee (13) is fixedly connected to an air pressure detection assembly.

2. The sealing structure of an air filter according to claim 1, characterized in that: The bottom of the mounting base (22) and the inner wall are fixedly connected to a number of reinforcing rods (23).

3. The sealing structure of an air filter according to claim 1, characterized in that: The connecting pipe includes a first flexible tube (15), and the first flexible tube (15) is fixedly connected to the mounting base (22). The top of the first flexible tube (15) is fixedly connected to a first connector (14), and the first connector (14) is sealed and threadedly connected to a tee (13).

4. The sealing structure of an air filter according to claim 1, characterized in that: The filter element includes an installation ring (18), which is mounted on the mounting base (22) and abuts against the pressure block (19). The bottom of the installation ring (18) is fixedly connected to the filter element body (10).

5. The sealing structure of an air filter according to claim 1, characterized in that: Each of the aforementioned latch components includes a lock body (3) and a hook body (2), with the lock body (3) fixedly connected to the cylinder cover (6) and the hook body (2) fixedly connected to the cylinder body (1).

6. The sealing structure of an air filter according to claim 1, characterized in that: The nozzle assembly includes a nozzle body (5), which is positioned above the cylinder cover (6). The bottom of the nozzle body (5) is fixedly connected to an installation tube (4), which passes through the cylinder cover (6) and is threadedly connected to it. The bottom of the installation tube (4) is fixedly connected to a second flexible hose (11), and the bottom of the second flexible hose (11) is fixedly connected to a second connector (12), which is threadedly connected to a tee (13).

7. The sealing structure of an air filter according to claim 1, characterized in that: The air pressure detection assembly includes a third connector (17), and the third connector (17) is connected to the tee (13) by a sealed thread. One end of the third connector (17) is fixedly connected to a third hose (16), and one end of the third hose (16) is fixedly connected to an air pressure sensor (9).

8. The sealing structure of an air filter according to claim 1, characterized in that: An exhaust pipe (8) is fixedly connected to one side of the outer surface of the cylinder (1).

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