Air filter gasket
By combining the main gasket, rubber sleeve, and elastic rubber ring, the problem of reduced sealing effect caused by enlarged gaps in the air filter gasket is solved, achieving a tight seal at the connection between the air filter and the engine intake manifold, thus improving the performance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TAIZHOU SHUANGLIAN RUBBER PLASTIC CO LTD
- Filing Date
- 2025-07-09
- Publication Date
- 2026-05-08
AI Technical Summary
Existing air filter gaskets have larger gaps due to their splicing and assembly methods, resulting in reduced sealing performance.
It adopts a combination structure of main washer, rubber sleeve, spring, secondary washer and sealing ring, combined with the design of elastic rubber ring and screw piston, to ensure the tightness of the connection through elastic push and expansion sealing.
The overall sealing performance of the air filter gasket has been improved, ensuring a complete seal at the connection between the air filter outlet and the engine intake pipe, thus enhancing the performance.
Smart Images

Figure CN224214277U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of gasket technology, specifically to an air filter gasket. Background Technology
[0002] An air filter removes dust, sand, and other impurities suspended in the air, preventing them from entering the engine and providing it with clean and sufficient air. A gasket is needed at the connection between the air filter's outlet and the engine's intake manifold to seal the gap between the two, preventing unfiltered air from mixing into the intake manifold through the interface gap and avoiding impurities from entering the engine block.
[0003] Chinese patent publication number "CN117307715A" discloses "a rubber gasket, comprising two half-rubber gaskets, wherein the two half-rubber gaskets are fitted together side-by-side, and a snap-fit mechanism is provided between the two half-rubber gaskets. The top of the left half-rubber gasket has grooves near both the front and rear sides, and an opening groove is provided on the right side of the groove." This patent facilitates the assembly and disassembly of the two half-rubber gaskets through the cooperation between the grooves, opening grooves, rubber balls, and connecting rods. This allows for the replacement of one half-rubber gasket when it is severely worn, reducing usage costs. Furthermore, the detachable design between the two half-rubber gaskets improves the ease of installation and efficiency. However, because the aforementioned patent uses a splicing assembly method to form a complete gasket, gaps exist at the joints. This makes the gasket prone to deformation during use, increasing the gaps and reducing the sealing effect. Therefore, we propose an air filter gasket. Utility Model Content
[0004] The purpose of this utility model is to provide an air filter gasket to solve the problem mentioned in the background art. However, the above-mentioned patents use a splicing and assembly method to form a complete gasket, which results in gaps at the splicing points of the gasket. Consequently, the gasket is prone to deformation during use, which increases the gaps and reduces the sealing effect of the rubber gasket.
[0005] To achieve the above objectives, this utility model provides the following technical solution: an air filter gasket, comprising a main gasket and a rubber sleeve, wherein the rubber sleeve is fixedly connected to the outer side wall of the main gasket, a spring is fixedly connected to the bottom of the inner cavity of the main gasket, a miniature damping rod is sleeved in the inner cavity of the spring, a connecting ring is fixedly connected to the end of the spring, a sealing ring is integrally formed on the lower side of the outer side wall and the lower side of the inner side wall of the connecting ring, and a secondary gasket is fixedly connected to the top of the connecting ring.
[0006] As a further description of the above technical solution:
[0007] A first elastic rubber ring is fixedly connected to the upper side of the inner wall of the rubber sleeve, and a first small cylinder is fixedly connected to the left side wall of the rubber sleeve.
[0008] As a further description of the above technical solution:
[0009] The top of the first small cylinder is fixedly connected to a first connecting pipe, the end of the first connecting pipe passes through the rubber sleeve and extends into the inner cavity of the rubber sleeve, and the end of the first connecting pipe is fixedly connected to the left side wall of the first elastic rubber ring.
[0010] As a further description of the above technical solution:
[0011] The inner cavity of the first small cylinder is slidably connected to a first piston, the bottom of the first piston is rotatably connected to a first screw, the end of the first screw is connected to the first small cylinder and extends to the bottom of the first small cylinder, and the end of the first screw is fixedly connected to a first knob.
[0012] As a further description of the above technical solution:
[0013] A second elastic rubber ring is fixedly connected to the lower side of the inner wall of the rubber sleeve, and a second small cylinder is fixedly connected to the right side wall of the rubber sleeve.
[0014] As a further description of the above technical solution:
[0015] The bottom of the second small cylinder is fixedly connected to a second connecting pipe. The end of the second connecting pipe passes through the rubber sleeve and extends into the inner cavity of the rubber sleeve. The end of the second connecting pipe is fixedly connected to the right side wall of the second elastic rubber ring.
[0016] As a further description of the above technical solution:
[0017] The inner cavity of the second small cylinder is slidably connected to a second piston, the top of the second piston is rotatably connected to a second screw, the end of the second screw is connected to the second small cylinder and extends to the top of the second small cylinder, and the end of the second screw is fixedly connected to a second knob.
[0018] Compared with the prior art, the beneficial effects of this utility model are:
[0019] 1. This air filter gasket works by installing the main gasket at the connection between the air filter outlet and the engine intake pipe, so that the main gasket fits against one side of the connection. Then, the elasticity of the spring pushes the secondary gasket outward, so that the secondary gasket fits tightly against the other side of the connection. Finally, the sealing ring seals the gap between the connecting ring and the main gasket, thereby further improving the overall sealing performance of the gasket and enhancing its overall sealing function and performance.
[0020] 2. This air filter gasket works by fitting the air filter outlet and the engine intake pipe end onto the two sides of a rubber sleeve, respectively. The rubber sleeve completely encloses the connection between the air filter outlet and the engine intake pipe. Rotating the first and second knobs causes the first and second screws to rotate, which in turn moves the first and second pistons. The first and second pistons then compress the air inside the first and second small cylinders into the first and second elastic rubber rings, causing them to expand and seal the gap. This ensures the gasket completely seals the connection between the air filter outlet and the engine intake pipe, improving the air filter's performance. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the overall structure of an air filter gasket proposed in this utility model;
[0022] Figure 2 This is a schematic diagram of the main sectional view of an air filter gasket proposed in this utility model;
[0023] Figure 3 This is a schematic diagram of the main gasket structure of an air filter gasket proposed in this utility model;
[0024] Figure 4 This is a schematic diagram of the connecting ring structure of an air filter gasket proposed in this utility model;
[0025] Figure 5 This is a cross-sectional view of the connecting ring of an air filter gasket proposed in this utility model.
[0026] In the diagram: 100, main washer; 110, spring; 120, miniature damping rod; 130, connecting ring; 131, sealing ring; 140, secondary washer; 200, rubber sleeve; 210, first elastic rubber ring; 220, first small cylinder; 221, first connecting pipe; 230, first piston; 240, first screw; 241, first knob; 250, second elastic rubber ring; 260, second small cylinder; 261, second connecting pipe; 270, second piston; 280, second screw; 281, second knob. Detailed Implementation
[0027] 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.
[0028] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.
[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0030] This utility model provides an air filter gasket that can better improve the sealing function and gasket performance, and can completely seal the connection between the air filter outlet and the engine intake manifold, thereby improving the air filter's performance. Please refer to [link / reference]. Figure 1-5 This includes the main washer 100 and the rubber sleeve 200;
[0031] Please see Figure 2-5A spring 110 is fixedly connected to the bottom of the inner cavity of the main washer 100. A miniature damping rod 120 is sleeved in the inner cavity of the spring 110. A connecting ring 130 is fixedly connected to the end of the spring 110. A sealing ring 131 is integrally formed on the lower side of the outer side wall and the lower side of the inner side wall of the connecting ring 130. A secondary washer 140 is fixedly connected to the top of the connecting ring 130. By installing the main washer 100 at the connection between the air outlet of the air filter and the air intake pipe of the engine, the main washer 100 is fitted to one side of the connection. Then, through the elasticity of the spring 110, the spring 110 pushes the secondary washer 140 outward, thereby making the secondary washer 140 tightly fit to the other side of the connection. Finally, the sealing ring 131 seals the gap between the connecting ring 130 and the main washer 100, thereby further improving the overall sealing performance of the washer.
[0032] In summary, this allows the gasket to better improve its sealing function and overall performance.
[0033] Please see Figure 1-2A rubber sleeve 200 is fixedly connected to the outer wall of the main washer 100. A first elastic rubber ring 210 is fixedly connected to the upper side of the inner wall of the rubber sleeve 200. A first small cylinder 220 is fixedly connected to the left side wall of the rubber sleeve 200. A first connecting pipe 221 is fixedly connected to the top of the first small cylinder 220. The end of the first connecting pipe 221 passes through the rubber sleeve 200 and extends into the inner cavity of the rubber sleeve 200. The end of the first connecting pipe 221 is fixedly connected to the left side wall of the first elastic rubber ring 210. A first piston 2 is slidably connected to the inner cavity of the first small cylinder 220. 30. A first screw 240 is rotatably connected to the bottom of the first piston 230. The end of the first screw 240 is connected to a first small cylinder 220 and extends to the bottom of the first small cylinder 220. A first knob 241 is fixedly connected to the end of the first screw 240. A second elastic rubber ring 250 is fixedly connected to the lower side of the inner wall of the rubber sleeve 200. A second small cylinder 260 is fixedly connected to the right side wall of the rubber sleeve 200. A second connecting pipe 261 is fixedly connected to the bottom of the second small cylinder 260. The end of the second connecting pipe 261 passes through the rubber sleeve 200 and extends to the bottom of the rubber sleeve. The inner cavity of the second sleeve 200 is connected to the second small cylinder 260, and the end of the second connecting pipe 261 is fixedly connected to the right side wall of the second elastic rubber ring 250. The inner cavity of the second small cylinder 260 is slidably connected to the second piston 270. The top of the second piston 270 is rotatably connected to the second screw 280. The end of the second screw 280 is connected to the second small cylinder 260 and extends to the top of the second small cylinder 260. The end of the second screw 280 is fixedly connected to the second knob 281. By fitting the air outlet of the air filter and the end of the engine intake pipe onto both sides of the rubber sleeve 200, the rubber sleeve 200 can hold the air filter. The connection between the air outlet and the engine intake pipe is wrapped. Then, by rotating the first knob 241 and the second knob 281, the first screw 240 and the second screw 280 are rotated respectively, which in turn causes the first piston 230 and the second piston 270 to move. Subsequently, the first piston 230 and the second piston 270 squeeze the air inside the first small cylinder 220 and the second small cylinder 260 into the first elastic rubber ring 210 and the second elastic rubber ring 250 respectively, thereby causing the first elastic rubber ring 210 and the second elastic rubber ring 250 to expand and seal the gap.
[0034] In summary, this ensures that the gasket can completely seal the connection between the air filter outlet and the engine intake manifold, thereby improving the air filter's performance.
[0035] In practical use, those skilled in the art first place the air filter outlet and the engine intake pipe end onto the rubber sleeve 200 on both sides, respectively, so that the rubber sleeve 200 covers the connection between the air filter outlet and the engine intake pipe. Simultaneously, the air filter outlet rests against the main washer 100, and the engine intake pipe end rests against the auxiliary washer 140. Then, through the elasticity of the spring 110, the main washer 100 and the auxiliary washer 140 are tightly fitted to the air filter outlet and the engine intake pipe end, respectively. Finally, the sealing ring 131 seals the gap between the connecting ring 130 and the main washer 100, thus... To improve sealing, the first knob 241 and the second knob 281 are rotated to drive the first screw 240 and the second screw 280 to rotate, which in turn causes the first piston 230 and the second piston 270 to move. Subsequently, the first piston 230 and the second piston 270 compress the air inside the first small cylinder 220 and the second small cylinder 260 into the first elastic rubber ring 210 and the second elastic rubber ring 250, respectively, thereby causing the first elastic rubber ring 210 and the second elastic rubber ring 250 to expand, thereby sealing the gap between the rubber sleeve 200 and the air outlet of the air filter and the engine intake pipe.
[0036] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0037] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.
Claims
1. An air filter gasket, characterized in that: The device includes a main washer (100) and a rubber sleeve (200). The rubber sleeve (200) is fixedly connected to the outer wall of the main washer (100). A spring (110) is fixedly connected to the bottom of the inner cavity of the main washer (100). A miniature damping rod (120) is sleeved in the inner cavity of the spring (110). A connecting ring (130) is fixedly connected to the end of the spring (110). A sealing ring (131) is integrally formed on the lower side of the outer wall and the lower side of the inner wall of the connecting ring (130). A secondary washer (140) is fixedly connected to the top of the connecting ring (130).
2. The air filter gasket according to claim 1, characterized in that: The upper inner wall of the rubber sleeve (200) is fixedly connected to a first elastic rubber ring (210), and the left side wall of the rubber sleeve (200) is fixedly connected to a first small cylinder (220).
3. The air filter gasket according to claim 2, characterized in that: The top of the first small cylinder (220) is fixedly connected to a first connecting pipe (221), the end of the first connecting pipe (221) passes through the rubber sleeve (200) and extends into the inner cavity of the rubber sleeve (200), and the end of the first connecting pipe (221) is fixedly connected to the left side wall of the first elastic rubber ring (210).
4. The air filter gasket according to claim 2, characterized in that: The inner cavity of the first small cylinder (220) is slidably connected to a first piston (230), the bottom of the first piston (230) is rotatably connected to a first screw (240), the end of the first screw (240) is connected to the first small cylinder (220) and extends to the bottom of the first small cylinder (220), and the end of the first screw (240) is fixedly connected to a first knob (241).
5. The air filter gasket according to claim 1, characterized in that: A second elastic rubber ring (250) is fixedly connected to the lower side of the inner wall of the rubber sleeve (200), and a second small cylinder (260) is fixedly connected to the right side wall of the rubber sleeve (200).
6. The air filter gasket according to claim 5, characterized in that: The bottom of the second small cylinder (260) is fixedly connected to a second connecting pipe (261). The end of the second connecting pipe (261) passes through the rubber sleeve (200) and extends into the inner cavity of the rubber sleeve (200). The end of the second connecting pipe (261) is fixedly connected to the right side wall of the second elastic rubber ring (250).
7. The air filter gasket according to claim 5, characterized in that: The inner cavity of the second small cylinder (260) is slidably connected to a second piston (270), the top of the second piston (270) is rotatably connected to a second screw (280), the end of the second screw (280) is connected to the second small cylinder (260) and extends to the top of the second small cylinder (260), and the end of the second screw (280) is fixedly connected to a second knob (281).
Citation Information
Patent Citations
Rubber gasket
CN117307715A