An air cleaner housing
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 常州恒勃滤清器有限公司
- Filing Date
- 2025-06-24
- Publication Date
- 2026-07-14
AI Technical Summary
Traditional air filter housings require multiple bolts to connect the upper and lower shells, which makes replacement time-consuming and labor-intensive, and the threaded connection may strip, leading to instability.
The locking assembly uses a slider and a fixed post. The upper and lower housings are connected and separated by the slider sliding in the groove and through groove. Combined with the design of spring and ball, tool disassembly is eliminated and threaded connection is avoided.
It simplifies the air filter replacement process, reduces labor intensity, avoids connection instability caused by stripped threads, and improves replacement efficiency and sealing performance.
Smart Images

Figure CN224496598U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of filter housings, specifically relating to an air filter housing. Background Technology
[0002] The air filter housing is a protective device for the filter element. It is installed in the engine compartment of the vehicle and can effectively secure the filter element.
[0003] However, in traditional designs, the upper and lower housings of an air filter are connected by multiple bolts. When replacing the air filter, users need to use disassembly tools to remove these bolts one by one. This process is time-consuming and labor-intensive, and long-term operation may cause the bolt threads to strip, affecting the stability of the connection between the upper and lower housings.
[0004] Therefore, in view of the above-mentioned technical problems, it is necessary to provide an air filter housing.
[0005] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content
[0006] The purpose of this invention is to provide an air filter housing that can solve the above-mentioned problems.
[0007] To achieve the above objectives, a specific embodiment of this utility model provides an air filter housing, including a lower housing with an air outlet pipe integrally formed thereon. An upper housing is fitted over the lower housing, and an air inlet pipe is integrally formed on the upper housing. The air filter housing also includes a locking assembly, which includes multiple sliders and fixing posts. The number of fixing posts matches the number of sliders. The sliders are slidably connected to the lower housing. The fixing posts are fixedly connected to the upper housing, and each fixing post has a second through groove that matches the slider. The slider is inserted into the second through groove.
[0008] In one or more embodiments of this utility model, a first fixing block matching the slider is fixedly connected to the lower housing, and a first sliding groove is provided on the first fixing block, and the slider is slidably connected in the first sliding groove.
[0009] In one or more embodiments of this utility model, the first fixing block is provided with a first through groove that matches the fixing post, the fixing post passes through the first through groove, and when the upper shell is covered on the lower shell, the second through groove is located in the first sliding groove.
[0010] In one or more embodiments of this utility model, a second fixing block is fixedly connected to the slider, and a second groove matching the second fixing block is opened on the first fixing block, and the second fixing block is slidably connected in the second groove.
[0011] In one or more embodiments of this utility model, a dustproof ring is fixedly connected to the upper housing, a first wedge-shaped surface is provided on the slider, and a second wedge-shaped surface matching the first wedge-shaped surface is provided on the bottom wall of the second through groove.
[0012] In one or more embodiments of this utility model, the dustproof ring is a rubber ring.
[0013] In one or more embodiments of this utility model, an insert plate is integrally formed on the upper housing, and a slot matching the insert plate is provided on the lower housing, wherein the depth of the slot is greater than the height of the insert plate.
[0014] In one or more embodiments of this utility model, the locking assembly further includes a sleeve integrally formed on the second fixing block, a sliding post slidably connected inside the sleeve, a spring fixedly connected to one end of the sliding post inside the sleeve, the spring being fixedly connected to the second fixing block away from the sliding post, and a fixing plate fixedly connected to the lower housing, the fixing plate having a through hole matching the sliding post.
[0015] In one or more embodiments of this utility model, the end of the sliding column away from the spring is slidably connected to the lower plate of the fixed plate.
[0016] In one or more embodiments of this utility model, a ball bearing is rolledly connected to the side of the sliding column away from the spring.
[0017] Compared with the prior art, the air filter housing of this utility model can save time in replacing air filters, reduce the labor intensity of users, and eliminate the need for disassembly tools. Furthermore, since it does not rely on threaded connections, it avoids the problem of unstable connection caused by stripped threads. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0019] Figure 1 This is a schematic diagram of the structure of an air filter housing in one embodiment of the present invention. Figure 1 ;
[0020] Figure 2 This is a cross-sectional view of an air filter housing according to one embodiment of the present invention;
[0021] Figure 3 Figure 2 Schematic diagram of the structure at point A;
[0022] Figure 4 This is a schematic diagram of the structure of the first fixing block and the slider of an air filter housing in one embodiment of the present invention;
[0023] Figure 5 This is a cross-sectional view of the sleeve and sliding column of an air filter housing according to one embodiment of the present invention;
[0024] Figure 6 This is a schematic diagram of the structure of an air filter housing in one embodiment of the present invention. Figure 2 .
[0025] Explanation of key figure labels:
[0026] 1. Lower housing; 11. Air outlet pipe; 12. Slot; 2. Upper housing; 21. Air inlet pipe; 22. Dustproof ring; 23. Insert plate; 3. First fixing block; 301. First through groove; 302. First sliding groove; 303. Second sliding groove; 31. Slider; 311. First wedge-shaped surface; 32. Second fixing block; 33. Sleeve; 34. Spring; 35. Sliding column; 351. Ball bearing; 36. Fixing plate; 361. Through hole; 37. Fixing column; 371. Second through groove; 3711. Second wedge-shaped surface. Detailed Implementation
[0027] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.
[0028] like Figures 1 to 5 As shown, an air filter housing according to one embodiment of the present invention includes a lower housing 1, an air outlet pipe 11 integrally formed on the lower housing 1, an upper housing 2 covering the lower housing 1, and an air inlet pipe 21 integrally formed on the upper housing 2. The air filter is installed inside the lower housing 1 and the upper housing 2, and the air outlet pipe 11 is connected to the air intake system of the vehicle engine. This is prior art and will not be described in detail further.
[0029] To facilitate the disassembly of the lower housing 1 and the upper housing 2, the air filter housing also includes a locking assembly, which comprises multiple sliders 31 and fixing posts 37. The sliders 31 are slidably connected to the lower housing 1, and the fixing posts 37 are welded to the upper housing 2. Each fixing post 37 has a second through groove 371 that matches the slider 31. When the upper housing 2 is placed on top of the lower housing 1, the sliders 31 are slid towards the fixing posts 37. When the sliders 31 are inserted into the second through groove 371, the upper housing 2 is secured to the lower housing 1.
[0030] When replacing the air filter, slide the slider 31 so that it slides out of the second through groove 371. At this time, the upper housing 2 on the lower housing 1 can be removed, which makes it easier to replace and fix the air filter.
[0031] like Figures 2 to 5 As shown, a first fixing block 3, matching the slider 31, is welded onto the lower housing 1. A first sliding groove 302 is formed on the first fixing block 3, and the slider 31 is slidably connected within the first sliding groove 302. A first through groove 301, matching the fixing post 37, is formed on the first fixing block 3, and the fixing post 37 passes through the first through groove 301. When the upper housing 2 is closed onto the lower housing 1, the second through groove 371 is located within the first sliding groove 302. A second fixing block 32 is integrally formed on the slider 31. A second sliding groove 303, matching the second fixing block 32, is formed on the first fixing block 3, and the second fixing block 32 is slidably connected within the second sliding groove 303.
[0032] When the air filter needs to be replaced, pull the second fixing block 32 away from the fixing post 37. The slider 31 can then slide out of the second through groove 371. When multiple sliders 31 have slid out of the second through groove 371, lift the upper housing 2 upwards. When the fixing post 37 disengages from the first through groove 301, the upper housing 2 on the lower housing 1 can be removed. Replacing a new air filter is the reverse process; no screws need to be tightened, saving time and effort and requiring no special tools.
[0033] In order to lock the slider 31 sliding in the first slide groove 302, the locking assembly also includes a sleeve 33. The sleeve 33 is integrally formed on the second fixed block 32. A sliding post 35 is slidably connected inside the sleeve 33. A spring 34 is welded to one end of the sliding post 35 inside the sleeve 33. The spring 34 is welded to the second fixed block 32 away from the sliding post 35. A fixing plate 36 is welded to the lower housing 1. A through hole 361 matching the sliding post 35 is opened on the fixing plate 36.
[0034] Specifically, the end of the sliding post 35 away from the spring 34 is slidably connected to the lower plate of the fixed plate 36. The second fixed block 32 slides towards the fixed post 37. When the sliding post 35 and the through hole 361 coincide, the spring 34 elastically extends and pushes the sliding post 35 into the through hole 361. This locks the slider 31 in the first groove 302, enhancing the fixing effect of the slider 31 on the fixed post 37.
[0035] When the air filter needs to be replaced, pinch the sliding post 35 with your hand and press it down to disengage the sliding post 35 from the through hole 361. Then you can pull the sliding post 35 away from the fixed post 37, and the slider 31 will disengage from the second through groove 371.
[0036] Furthermore, a ball bearing 351 is rolledly connected to the side of the sliding column 35 away from the spring 34. The ball bearing 351 transforms the sliding friction between the sliding column 35 and the fixed plate 36 into rolling friction, making it easier to slide the sliding column 35.
[0037] like Figure 5 As shown, a dustproof ring 22 is bonded to the upper housing 2, a first wedge-shaped surface 311 is provided on the slider 31, and a second wedge-shaped surface 3711 matching the first wedge-shaped surface 311 is provided on the bottom wall of the second through groove 371.
[0038] Specifically, the dustproof ring 22 is a rubber ring with a certain elasticity. During the process of the slider 31 being inserted into the second through groove 371, the first wedge surface 311 and the second wedge surface 3711 cooperate to press down the fixing post 37. At this time, the fixing post 37 drives the upper housing 2 to squeeze the dustproof ring 22 downward, thereby improving the sealing between the lower housing 1 and the upper housing 2.
[0039] Furthermore, the upper housing 2 has an integrally formed insert plate 23, and the lower housing 1 has a slot 12 that matches the insert plate 23. When the upper housing 2 is closed on the lower housing 1, the insert plate 23 is inserted into the slot 12. Even if some dust passes through the dustproof ring 22, it will be blocked by the insert plate 23, further ensuring the cleanliness of the air entering the vehicle engine.
[0040] It should be noted that the depth of the slot 12 is greater than the height of the insert plate 23. That is to say, when the upper housing 2 is covered on the lower housing 1, there is a certain distance between the insert plate 23 and the bottom wall of the slot 12, so that the dustproof ring 22 can be compressed downward by the slider 31 inserted into the second through slot 371.
[0041] When using, such as Figures 1 to 6As shown, pinch the sliding post 35 and press it down to disengage the sliding post 35 from the through hole 361. Then pull the sliding post 35 away from the fixed post 37 to disengage the slider 31 from the second through groove 371. At this time, the upper housing 2 on the lower housing 1 can be removed, so that the air filter in the lower housing 1 can be replaced.
[0042] After replacement, the upper housing 2 is placed on the lower housing 1, the fixing post 37 passes through the first through groove 301, and then the second fixing block 32 is pushed in the direction of the fixing post 37. When the sliding post 35 and the through hole 361 are aligned, the spring 34 elastically extends and pushes the sliding post 35 into the through hole 361. At this time, the slider 31 also passes through the second through groove 371, thus fixing the upper housing 2.
[0043] Compared with the prior art, the air filter housing of this utility model can save time in replacing air filters, reduce the labor intensity of users, and eliminate the need for disassembly tools. Furthermore, since it does not rely on threaded connections, it avoids the problem of unstable connection caused by stripped threads.
[0044] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0045] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. An air filter housing, comprising a lower housing, an air outlet pipe integrally formed on the lower housing, an upper housing covering the lower housing, and an air inlet pipe integrally formed on the upper housing, characterized in that, The air filter housing also includes a locking assembly, which includes: Multiple sliders are slidably connected to the lower housing; Multiple fixed posts are provided, the number of which matches the number of sliders. The fixed posts are fixedly connected to the upper housing. A second through groove matching the slider is provided on the fixed post, and the slider is inserted into the second through groove.
2. The air filter housing according to claim 1, characterized in that, A first fixing block matching the slider is fixedly connected to the lower housing. A first sliding groove is provided on the first fixing block, and the slider is slidably connected in the first sliding groove.
3. An air filter housing according to claim 2, characterized in that, The first fixing block has a first through groove that matches the fixing post. The fixing post passes through the first through groove. When the upper shell is covered by the lower shell, the second through groove is located in the first sliding groove.
4. An air filter housing according to claim 3, characterized in that, A second fixing block is fixedly connected to the slider. The first fixing block has a second sliding groove that matches the second fixing block. The second fixing block is slidably connected in the second sliding groove.
5. An air filter housing according to claim 4, characterized in that, A dustproof ring is fixedly connected to the upper housing, a first wedge-shaped surface is provided on the slider, and a second wedge-shaped surface matching the first wedge-shaped surface is provided on the bottom wall of the second through groove.
6. An air filter housing according to claim 5, characterized in that, The dustproof ring is a rubber ring.
7. An air filter housing according to claim 5, characterized in that, The upper housing has an integrally formed insert plate, and the lower housing has a slot that matches the insert plate. The depth of the slot is greater than the height of the insert plate.
8. An air filter housing according to claim 4, characterized in that, The locking assembly also includes a sleeve integrally formed on the second fixing block. A sliding post is slidably connected inside the sleeve. A spring is fixedly connected to one end of the sliding post inside the sleeve. The end of the spring away from the sliding post is fixedly connected to the second fixing block. A fixing plate is fixedly connected to the lower housing. A through hole matching the sliding post is opened on the fixing plate.
9. An air filter housing according to claim 8, characterized in that, The end of the sliding column away from the spring is slidably connected to the lower plate of the fixed plate.
10. An air filter housing according to claim 9, characterized in that, A ball bearing is rolled on the side of the sliding column away from the spring.