Self-locking anti-vibration and anti-falling filter element for automobile

Abstract

The utility model discloses a self -locking formula anti -shock anti -drop car filter core, including the barrel body and respectively being equipped with flange cover and shell cover in the upper and lower both ends of barrel body, the barrel body is from the inside to the outside and is equipped with the main filter core and safety filter core in proper order, the safety filter core and main filter core between the sleeve joint lock, the head of safety filter core still is equipped with the outer sealing ring, and the head of safety filter core is connected and is equipped with the inner sealing ring, the bottom wall of flange cover still is provided with the double -layer track convex ring of filling in the installation gap outward convex, when flange cover and barrel body install, the bottom wall of flange cover respectively with the top wall of outer sealing ring and inner sealing ring abuts, and the outer wall of double -layer track convex ring abuts with the inner wall of outer sealing ring, and the inner wall of double -layer track convex ring abuts with the outer wall of inner sealing ring, the utility model discloses compared with prior art's advantage lies in: provide a kind of self -locking structure with, prevent jolt slip, enhance the installation stability of filter core in vibrating environment a kind of self -locking formula anti -shock anti -drop car filter core.

Description

Technical Field

[0001] This utility model relates to the field of automotive filter technology, specifically to a self-locking, shock-resistant, and anti-detachment automotive filter. Background Technology

[0002] The car air filter is a core component of the engine intake system. Its function is to filter impurities in the air and ensure that the engine intake air is clean.

[0003] In areas with poor road conditions, trucks and other commercial vehicles often have to travel on bumpy, potholed roads, resulting in severe vehicle vibrations.

[0004] Traditional filter cartridges mostly use a single main filter cartridge structure, which is fixed to the tank body by simple snap-fit ​​or interference fit.

[0005] Long-term vibration can easily cause the filter element to loosen or even slip off the filter body, resulting in air intake short circuit or insufficient air intake of the engine, which seriously affects engine performance and vehicle operation safety.

[0006] In addition, traditional filter elements have insufficient sealing reliability and are prone to sealing failure under vibration, causing unfiltered air to directly enter the engine and aggravating wear. Utility Model Content

[0007] (I) Problems to be solved

[0008] The technical problem to be solved by this utility model is to overcome the above-mentioned technical defects and provide a self-locking anti-vibration and anti-detachment automotive filter element with a self-locking structure to prevent slippage due to bumps and enhance the installation stability of the filter element in a vibration environment.

[0009] (II) Technical Solution

[0010] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows: a self-locking shockproof and anti-detachment automotive filter element, including a barrel body and a flange cover and a shell cover respectively disposed at the upper and lower ends of the barrel body, wherein a main filter element and a safety filter element are sequentially sleeved inside the barrel body from the outside to the inside, and the safety filter element and the main filter element are sleeved and locked together.

[0011] The safety filter head is also provided with an outer sealing ring, and the head of the safety filter is connected with an inner sealing ring. The inner wall of the outer sealing ring protrudes outward toward the bottom wall of the inner sealing ring with a limit protrusion ring, and an installation gap is formed between the outer wall of the inner sealing ring and the inner wall of the outer sealing ring.

[0012] The bottom wall of the flange cover is also provided with a double-layer track ring that fills the installation gap;

[0013] When the flange cover is installed with the barrel body, the bottom wall of the flange cover abuts against the top walls of the outer sealing ring and the inner sealing ring, respectively. The outer wall of the double-layer track convex ring abuts against the inner wall of the outer sealing ring, and the inner wall of the double-layer track convex ring abuts against the outer wall of the inner sealing ring.

[0014] As an improvement, the rear end of the main filter element is further recessed with an annular groove, and the inner wall of the cover is provided with a positioning protrusion to fit the annular groove.

[0015] As an improvement, a ventilation port one is provided on the barrel near the shell cover, and a second ventilation port is formed between the flange cover and the safety filter element.

[0016] As an improvement, the outer wall of the outer sealing ring forms an expanding diameter structure from top to bottom, which deforms against the inner wall of the double-layer track convex ring. The inner wall of the double-layer track convex ring is provided with several convex feet, and the outer wall of the outer sealing ring is provided with several recessed grooves along its circumference to match the recessed feet.

[0017] As an improvement, the top wall of the limiting protrusion ring is further provided with a locking ring, and the lower wall of the inner sealing ring is provided with a locking groove to cooperate with the locking ring.

[0018] As an improvement, the inner diameter of the locking groove gradually increases from top to bottom, and a second groove is provided inwardly on one side wall of the locking groove, and a second locking foot is provided outwardly on the side wall of the locking ring in cooperation with the second groove.

[0019] As an improvement, the shell cover and the barrel body are fastened together by a snap-fit ​​mechanism.

[0020] (III) Beneficial Effects

[0021] The advantages of this utility model compared with the prior art are as follows: In this application, the installation gap is filled by a double-layer track convex ring, which, together with the expansion deformation of the outer sealing ring and the engagement of the first locking foot and the first locking groove, restricts the axial movement of the safety filter element. The locking ring and the locking groove are engaged, and the second locking foot and the second locking groove are engaged to prevent the main filter element and the safety filter element from slipping relative to each other, thus forming a relatively fixed flange, safety filter element and main filter element, thereby preventing slippage, rotational friction and other situations that affect airtightness. Attached Figure Description

[0022] Figure 1 This is a structural schematic diagram of a cross-section of a self-locking, shock-resistant, and anti-detachment automotive filter element.

[0023] Figure 2 This is a structural diagram of a safety filter element.

[0024] Figure 3 This is a top view of the safety filter element.

[0025] Figure 4 This is a structural schematic diagram of a safety filter element from below.

[0026] As shown in the figure: 1. Barrel body; 2. Flange cover; 3. Shell cover; 4. Main filter element; 5. Safety filter element; 6. Outer sealing ring; 7. Inner sealing ring; 8. Limiting convex ring; 9. Installation gap; 10. Double-layer track convex ring; 11. Annular groove; 12. Positioning convex ring; 13. Ventilation port one; 14. Ventilation port two; 15. Expansion structure; 16. Slot one; 17. Locking ring; 18. Locking groove; 19. Slot two; 20. Buckle. Detailed Implementation

[0027] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. Identical components are indicated by the same reference numerals.

[0028] It should be noted that the terms “front,” “back,” “left,” “right,” “up,” and “down” used in the following description refer to the directions shown in the attached diagram, while the terms “inside” and “outside” refer to the directions toward or away from the geometric center of a specific component, respectively.

[0029] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly associated with those skilled in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0031] To make the content of this utility model easier to understand, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0032] Please refer to the appendix carefully. Figure 1-4 A self-locking, shock-resistant, and anti-detachment automotive filter element includes a barrel body 1 and a flange cover 2 and a shell cover 3 respectively located at the upper and lower ends of the barrel body 1. A main filter element 4 and a safety filter element 5 are sequentially sleeved inside the barrel body 1 from the outside to the inside, and the safety filter element 5 and the main filter element 4 are sleeved and locked together.

[0033] In use, the head of the safety filter element 5 is also provided with an outer sealing ring 6, and the head of the safety filter element 5 is connected with an inner sealing ring 7. The inner wall of the outer sealing ring 6 protrudes outward toward the bottom wall of the inner sealing ring 7 with a limiting protrusion ring 8. An installation gap 9 is formed between the outer wall of the inner sealing ring 7 and the inner wall of the outer sealing ring 6. The bottom wall of the flange cover 2 is also provided with a double-layer track protrusion ring 10 that fills the installation gap 9.

[0034] During installation and use, when the flange cover 2 is installed with the barrel body 1, the bottom wall of the flange cover 2 abuts against the top walls of the outer sealing ring 6 and the inner sealing ring 7 respectively, the outer wall of the double-layer track convex ring 10 abuts against the inner wall of the outer sealing ring 6, and the inner wall of the double-layer track convex ring 10 abuts against the outer wall of the inner sealing ring 7.

[0035] In one embodiment:

[0036] The rear end of the main filter element 4 is also recessed with an annular groove 11, and the inner wall of the shell cover 3 is provided with a positioning protrusion ring 12 to match the annular groove 11, which, together with the flange cover 2, completes the installation of the main filter element.

[0037] During use, a ventilation port 13 is provided on the barrel 1 near the shell cover 3, and a second ventilation port 14 is formed between the flange cover 2 and the safety filter element 5. The safety filter element serves as secondary protection and can still ensure the normal operation of the device after the main filter element is damaged.

[0038] In one embodiment:

[0039] The outer wall of the outer sealing ring 6 forms an expansion structure 15 from top to bottom, which abuts against the inner wall of the double-layer track convex ring 10 and deforms. The inner wall of the double-layer track convex ring 10 is provided with several locking feet. The outer wall of the outer sealing ring 6 is provided with several locking grooves 16 that are recessed along its circumference. The expansion structure allows the double-layer track convex ring to be fixed by abutting against the double-layer track convex ring during installation. At the same time, the locking grooves 16 are added to engage with the locking feet to prevent the filter element from shaking or rotating due to vibration.

[0040] To further enhance the fixing effect, the top wall of the limiting convex ring 8 is also provided with a locking ring 17. The lower wall of the inner sealing ring 7 is provided with a locking groove 18 that cooperates with the locking ring 17. The inner diameter of the locking groove 18 gradually increases from top to bottom. The inner side wall of the locking groove 18 is also provided with a second groove 19 that is recessed. The side wall of the locking ring 17 is provided with a second foot that cooperates with the second groove 19. The locking ring 17 is inserted into the locking groove 18 to further compress the inner sealing ring 7, thereby increasing the assembly pressing effect between the main filter element and the safety filter element, the safety filter element and the double-layer track convex ring 10, and forming a relative fixation between the flange, the safety filter element and the main filter element.

[0041] In one embodiment:

[0042] The cover 3 and the barrel 1 are fastened together by a buckle 20, which facilitates subsequent maintenance, disassembly and separation.

[0043] Working Principle: The main and safety filter elements are nested inside the barrel. An installation gap is provided between the outer and inner sealing rings at the head of the safety filter element. The double-layered track convex rings on the flange cover fill the gap and abut against the two sealing rings, restricting axial movement of the safety filter element. The expanded diameter structure of the outer sealing ring fits snugly against the track convex ring, supplemented by a locking foot and a locking groove to prevent rotation. The locking ring at the top of the limiting convex ring is embedded in the locking groove of the inner sealing ring, and the second locking groove on the side of the groove engages with the locking foot of the locking ring to prevent relative slippage of the main and auxiliary filter elements. The annular groove at the rear end of the main filter element is reinforced with a positioning convex ring on the shell cover. The shell cover and barrel are snap-fitted together for easy maintenance. Air exchange ports one and two balance airflow. Through multiple structural collaborations, the filter element remains stable and reliably sealed under vibration conditions, preventing slippage and failure.

[0044] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0045] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0046] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A self-locking, shock-resistant, and anti-detachment automotive filter element, comprising a barrel body (1) and flange covers (2) and shell covers (3) respectively disposed at the upper and lower ends of the barrel body (1), characterized in that: The barrel (1) is provided with a main filter element (4) and a safety filter element (5) sequentially from the outside to the inside, and the safety filter element (5) and the main filter element (4) are locked together. The head of the safety filter element (5) is also provided with an outer sealing ring (6), and the head of the safety filter element (5) is connected with an inner sealing ring (7). The inner wall of the outer sealing ring (6) protrudes outward toward the bottom wall of the inner sealing ring (7) with a limiting protrusion ring (8). An installation gap (9) is formed between the outer wall of the inner sealing ring (7) and the inner wall of the outer sealing ring (6). The bottom wall of the flange cover (2) is also provided with a double-layer track ring (10) that fills the installation gap (9); When the flange cover (2) is installed with the barrel body (1), the bottom wall of the flange cover (2) abuts against the top walls of the outer sealing ring (6) and the inner sealing ring (7) respectively, the outer wall of the double-layer track convex ring (10) abuts against the inner wall of the outer sealing ring (6), and the inner wall of the double-layer track convex ring (10) abuts against the outer wall of the inner sealing ring (7).

2. The self-locking, shock-resistant, and anti-detachment automotive filter element according to claim 1, characterized in that: The rear end of the main filter element (4) is also provided with an annular groove (11), and the inner wall of the cover (3) is provided with a positioning protrusion (12) in conjunction with the annular groove (11).

3. The self-locking, shock-resistant, and anti-detachment automotive filter element according to claim 1, characterized in that: The barrel (1) has a ventilation port one (13) near the shell cover (3), and a ventilation port two (14) is formed between the flange cover (2) and the safety filter element (5).

4. The self-locking, shock-resistant, and anti-detachment automotive filter element according to claim 1, characterized in that: The outer wall of the outer sealing ring (6) forms an expansion structure (15) from top to bottom, which abuts against the inner wall of the double-layer track convex ring (10) and deforms. The inner wall of the double-layer track convex ring (10) is provided with a number of locking feet, and the outer wall of the outer sealing ring (6) is provided with a number of locking grooves (16) that are recessed along its circumference.

5. A self-locking, shock-resistant, and anti-detachment automotive filter element according to claim 1 or 4, characterized in that: The top wall of the limiting protrusion ring (8) is also provided with a locking ring (17), and the lower wall of the inner sealing ring (7) is provided with a locking groove (18) in cooperation with the locking ring (17).

6. A self-locking, shock-resistant, and anti-detachment automotive filter element according to claim 5, characterized in that: The inner diameter of the locking groove (18) gradually increases from top to bottom. The inner side wall of the locking groove (18) is also recessed with a second groove (19). The side wall of the locking ring (17) is provided with a second foot that bulges outward in cooperation with the second groove (19).

7. A self-locking, shock-resistant, and anti-detachment automotive filter element according to claim 2, characterized in that: The cover (3) and the barrel (1) are fastened together by a buckle (20).

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