An air cleaner structure

By designing the air filter structure, the disassembly and installation process of the air filter is simplified by using locking and lifting mechanisms, solving the problem of difficult operation in confined spaces, and improving the service life and working stability of the engine.

CN120120156BActive Publication Date: 2025-12-09JIANGXI ARROW CROWN TECH CO LTD
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Patent Information

Application Number
CN202510405190.3
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-04-02
Publication Date
2025-12-09
Estimated Expiration
2045-04-02

AI Technical Summary

Technical Problem

Existing air filters are complex to disassemble and install in the confined space of the engine compartment, making operation difficult and affecting their service life and performance.

Method used

An air filter structure was designed, including a cover, a locking mechanism, a fixing mechanism, and a lifting mechanism. Through the cooperation of a rotating shaft, a diagonal rod, and a spring, the air filter can be horizontally fixed and tilted for removal, simplifying the disassembly process.

Benefits of technology

It enables convenient removal and installation of the air filter in the engine compartment, improving operational efficiency, extending service life, and ensuring normal engine operation.

✦ Generated by Eureka AI based on patent content.

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    Figure CN120120156B_ABST
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Abstract

The application relates to an air filter structure which comprises a cover body, air inlet pipes and air outlet pipes arranged on the upper and lower sides of the cover body respectively, an air filter arranged in the cover body between the air inlet pipes and the air outlet pipes, an upper shell and a lower shell assembled to form the cover body, a rectangular frame arranged in the lower shell to support the air filter, a rotating shaft arranged at the middle of the rectangular frame and embedded into the side wall of the lower shell, locking mechanisms arranged on the two sides of the rectangular frame to fix the rectangular frame, fixing mechanisms arranged on the two sides of the rectangular frame to fix the rectangular frame and the air filter, a pushing mechanism arranged in the fixing mechanism and abutting against one end of the air filter, mounting openings arranged on the side wall of the bottom of the upper shell and on the same side of the locking mechanisms, a surrounding edge arranged in the upper shell to seal the mounting openings, and a lifting mechanism arranged to drive the surrounding edge. The application is convenient for disassembling and replacing the filter body.
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Description

TECHNICAL FIELD

[0001] The present application relates to the field of filter, in particular to an air filter structure. BACKGROUND

[0002] The air filter has a great influence on the service life of the automobile (especially the engine). On the one hand, if there is no filtering effect of the air filter, the engine will suck a large amount of air containing dust and particles, resulting in serious wear of the engine cylinder; on the other hand, if the air filter is not maintained for a long time during use, the filter element of the air filter will be full of dust in the air, which not only reduces the filtering capacity, but also hinders the circulation of air, resulting in too thick mixture and abnormal operation of the engine.

[0003] However, due to the small engine room, when normally disassembling the air filter, first, an opening is opened between the upper cover body and the lower cover body of the air filter cover, then the air filter cover is taken out from the lower cover body from horizontal to inclined state to avoid the interference of surrounding parts, which is complex and has certain difficulty in actual operation due to space problems. SUMMARY

[0004] The purpose of the present application is to provide an air filter structure.

[0005] The technical problem of the present application is mainly solved by the following technical scheme:

[0006] An air filter structure, comprising a cover body, the cover body is provided with an air inlet pipe and an air outlet pipe on the upper and lower sides respectively, and an air filter is arranged in the cover body between the air inlet pipe and the air outlet pipe:

[0007] The cover body is assembled by an upper shell and a lower shell, the lower shell is provided with a rectangular frame supporting the air filter, a rotating shaft with the end embedded in the side wall of the lower shell is arranged at the middle of the rectangular frame, the two sides of the rectangular frame are respectively provided with a locking mechanism fixing the rectangular frame and a fixing mechanism fixing the rectangular frame and the air filter, the fixing mechanism is further provided with a pushing mechanism abutting against one end of the air filter, the bottom side wall of the upper shell is provided with a mounting opening on the same side as the locking mechanism, the upper shell is provided with a surrounding edge sealing the mounting opening, and the surrounding edge is driven by a lifting mechanism;

[0008] The locking mechanism comprises a mounting shaft longitudinally arranged in the lower shell, the mounting shaft is located below the rectangular frame, the mounting shaft is provided with an inclined rod, the lower shell side wall is screwed with a bolt I abutting the bottom end face of the inclined rod, the other side end face of the top of the inclined rod is provided with a spring I connected with the inner bottom wall of the lower shell, the inner side wall of the rectangular frame is provided with a clamping groove corresponding to the inclined rod, the top end of the inclined rod extends into the opening of the rectangular frame and is provided with a clamping block located in the clamping groove.

[0009] The fixing mechanism comprises a pressing strip on the inner side wall of the upper shell, the bottom end face of the pressing strip abuts the top end face of the air filter, and the bottom end face of the rectangular frame directly below the pressing strip is provided with a spring II connected with the inner bottom wall of the lower shell.

[0010] Preferably, the pushing mechanism comprises a limiting strip arranged at the top of the rectangular frame and abutting one end of the air filter, wherein the end face of the limiting strip on the same side of the air filter is provided with a fixing channel, the side wall of the fixing channel is axially provided with a sliding groove, the sliding groove is provided with a sliding block, the sliding block is connected with a jack in the fixing channel, one end of the jack abuts the corresponding end face of the air filter, and the other end of the jack is connected with the corresponding inner wall of the fixing channel through a spring III.

[0011] Preferably, the bottom end face of the rectangular frame is uniformly provided with a magnetic rod made of electromagnet material, one end of the air inlet pipe extends into the lower shell, and the bottom wall of the lower shell outside the air inlet pipe is provided with a blowdown pipe.

[0012] Preferably, the bottom of the upper shell and the top of the lower shell are outwardly bent with a bent edge, wherein a sealing layer is arranged between the two groups of bent edges, and the two groups of bent edges are fixed through a bolt II.

[0013] Preferably, the bottom end of the surrounding edge is provided with an inclined surface, the bottom end of the inclined surface of the surrounding edge is arranged on the same side of the mounting opening, the bottom end of the inclined surface of the surrounding edge abuts the corresponding top end face of the rectangular frame, and the top end of the inclined surface of the surrounding edge is located above the fixing mechanism.

[0014] Preferably, the lifting mechanism comprises a driving rod transversely arranged above the surrounding edge, one end of the driving rod extends to the outside of the upper shell, a plurality of gears are arranged on the driving rod in the upper shell, a vertical gear rack is arranged on the gear, the bottom end of the gear rack is fixedly connected with the side wall of the surrounding edge through a fixed rod, and the end of the driving rod is provided with a force applying block located outside the upper shell, a skirt is arranged on the outer wall of the upper shell to enclose the force applying block, and a protective cover is buckled on the skirt to cover the force applying block.

[0015] Preferably, the bottom end of the inclined rod is arranged on the same side of the bolt I, and the spring I is arranged at the bottom of the top end of the inclined rod.

[0016] The beneficial effects of the present application are: the air filter and the rectangular frame are fixed in a horizontal state by the locking mechanism, the surrounding edge, the rotating shaft and the fixing mechanism to filter the air flowing in the cover body, when the air filter needs to be taken out, the surrounding edge is moved upward by the lifting mechanism to open the installation opening, the clamping block in the locking mechanism is slid out of the clamping groove to separate the rectangular frame, under the influence of the pulling force of the spring II in the fixing mechanism, the rectangular frame and the air filter rotate around the rotating shaft and tilt, and the spring III and the push rod in the pushing mechanism push the air filter to slide out of the installation opening, thereby facilitating the taking out of the air filter and the like. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a structural schematic diagram of the present application;

[0018] Figure 2 is Figure 1 a structural schematic diagram when the air filter is disassembled;

[0019] Figure 3 is Figure 1 an enlarged view of A in

[0020] Figure 4 is Figure 2 an enlarged view of B in

[0021] Figure 5 is a top view of the rectangular frame in the present application.

[0022] In the figure: 1, cover body, 101, upper shell, 102, lower shell, 2, air inlet pipe, 3, air outlet pipe, 4, air filter, 5, rectangular frame, 6, rotating shaft, 7, locking mechanism, 71, mounting shaft, 72, inclined rod, 73, bolt I, 74, spring I, 75, clamping groove, 76, clamping block, 8, fixing mechanism, 81, pressing strip, 82, spring II, 9, pushing mechanism, 91, limiting strip, 92, fixed channel, 93, sliding groove, 94, sliding block, 95, push rod, 96, spring III, 10, installation opening, 11, surrounding edge, 12, lifting mechanism, 121, driving rod, 122, gear, 123, rack, 124, fixed rod, 125, force applying block, 126, protective cover, 13, magnetic rod, 14, pollution discharge pipe. DETAILED DESCRIPTION

[0023] The technical solutions of the present application will be further specifically described below by examples in combination with the drawings.

[0024] An air filter structure includes a cover body 1, the cover body 1 is provided with an air inlet pipe 2 and an air outlet pipe 3 on the upper and lower sides respectively, and an air filter 4 is arranged in the cover body 1 between the air inlet pipe 2 and the air outlet pipe 3:

[0025] The cover body 1 is assembled by the upper shell 101 and the lower shell 102, the rectangular frame 5 supporting the air filter 4 is arranged in the lower shell 102, the rotating shaft 6 embedded in the side wall of the lower shell 102 is arranged at the middle of the rectangular frame 5, the locking mechanism 7 fixing the rectangular frame 5 and the fixing mechanism 8 fixing the rectangular frame 5 and the air filter 4 are arranged at both sides of the rectangular frame 5 respectively, the pushing mechanism 9 abutting against one end of the air filter 4 is further arranged in the fixing mechanism 8, the mounting opening 10 is arranged on the side wall of the bottom of the upper shell 101 and is on the same side of the locking mechanism 7, the surrounding edge 11 sealing the mounting opening 10 is arranged in the upper shell 101, and the surrounding edge 11 is driven by the lifting mechanism 12.

[0026] The locking mechanism 7 comprises the mounting shaft 71 arranged longitudinally in the lower shell 102, the mounting shaft 71 is located below the rectangular frame 5, the inclined rod 72 is arranged on the mounting shaft 71, the bolt I 73 abutting against the bottom end face of the inclined rod 72 is screwed on the side wall of the lower shell 102, the spring I 74 connected with the inner bottom wall of the lower shell 102 is arranged on the top side end face of the inclined rod 72 and is arranged obliquely downward, the spring I 74 is arranged on the bottom of the top end of the inclined rod 72, the clamping groove 75 corresponding to the inclined rod 74 is arranged on the inner side wall of the rectangular frame 5, the clamping block 76 located in the clamping groove 75 is arranged on the top end of the inclined rod 74 extending into the opening of the rectangular frame 5.

[0027] The fixing mechanism 8 comprises the pressing strip 81 arranged on the inner side wall of the upper shell 101, the bottom end face of the pressing strip 81 abutting against the top end face of the air filter 4, the spring II 82 connected with the inner bottom wall of the lower shell 102 is arranged on the bottom end face of the rectangular frame 5 below the pressing strip 81.

[0028] The pushing mechanism 9 comprises the limiting strip 91 abutting against one end of the air filter 4 arranged on the top of the rectangular frame 5, the fixing channel 92 is arranged on the end face of the limiting strip 91 on the same side of the air filter 4, the sliding groove 93 is arranged axially on the side wall of the fixing channel 92, the sliding block 94 is arranged in the sliding groove 93, the sliding block 94 is connected with the top rod 95 in the fixing channel 92, the top rod 95 abutting against the corresponding end face of the air filter 4 is arranged on one end of the top rod 95, and the top rod 95 is connected with the corresponding inner wall of the fixing channel 92 through the spring III 96 on the other end.

[0029] The magnetic rod 13 made of electromagnet is arranged on the bottom end face of the rectangular frame 5 uniformly in the embodiment, one end of the air inlet pipe 2 extends into the lower shell 102, and the blowdown pipe 14 is arranged on the bottom wall of the lower shell 102 outside the air inlet pipe 2.

[0030] The bottom of the upper shell 101 and the top of the lower shell 102 are both outwardly bent with a bent edge, wherein a sealing layer is arranged between the two groups of bent edges, and the two groups of bent edges are fixed through the bolts II.

[0031] The bottom end of the surrounding edge 11 is provided with a slope, the bottommost end of the bottom slope of the surrounding edge 11 is arranged on the same side of the mounting opening 10, the bottommost end of the bottom slope of the surrounding edge 11 is in abutment with the corresponding top end surface of the rectangular frame 5, and the topmost end of the bottom slope of the surrounding edge 11 is located above the fixing mechanism 8. The surrounding edge 11 can be fixed by extruding the left end of the air filter 4, and it will not be lifted by the fixing mechanism 8.

[0032] The lifting mechanism 12 comprises a driving rod 121 horizontally arranged above the surrounding edge 11, one end of the driving rod 121 extends to the outside of the upper shell 101, a plurality of gears 122 are arranged on the driving rod 121 in the upper shell 101, a rack 123 vertically arranged on the gear 122 is engaged with the gear 122, the bottom end of the rack 123 is fixedly connected with the side wall of the surrounding edge 11 through a fixing rod 124, a force applying block 125 is arranged at the end of the driving rod 121 and located outside the upper shell 101, a skirt is arranged on the outer wall of the upper shell 101 and surrounds the force applying block 125, and a protective cover 126 is buckled on the skirt and covers the force applying block 125.

[0033] The use method of the air filter is as follows: when in use, the gas enters the cover body 1 through the air inlet pipe 2, is filtered by the air filter 4, and is then discharged through the air outlet pipe 3. Meanwhile, the metal impurities possibly mixed in the air can be separated and attracted by the electromagnetic iron material magnetic rod 13, and the metal impurities fall into the bottom of the lower shell 102 and are accumulated when the electromagnetic iron material magnetic rod 13 is powered off. When the accumulated metal impurities reach a certain amount, the blowdown pipe 14 can be opened to discharge the metal impurities during maintenance.

[0034] When it is necessary to take out the air filter 4 for maintenance or replacement, the electromagnetic iron material magnetic rod 13 is powered off, the lifting mechanism 12 is driven to drive the surrounding edge 11 to move upwards, the air filter 4 is lifted and separated from the surrounding edge 11, and then the air filter 4 can be taken out. Figure 2As shown, pull out the protective cover 126, turn the force block 125 drive rod 121 and gear 122 rotation, gear 122 drive rack 123 and fixed rod 124 to drive the edge 11 up, and then open the installation opening 10, the edge 11 and air filter 4 left end separation, followed by rotating outward bolt I73, then gradually lose the bolt I73 extrusion, spring I74 contraction pull rod 72 to install the shaft 71 as the center of the clockwise rotation, so as to pull out the block 76 from the card slot 75, at this time in the loss of the edge 11 extrusion force, and the loss of the rod 72 and block 76 pull the rectangular frame 5 card slot 75 force, spring II82 contraction pull rectangular frame 5 to the shaft 6 as the center of the clockwise rotation, and then make the rectangular frame 5 and air filter 4 in the left high right low tilt state, and when the air filter 4 in the tilt state, it will lose the upper shell 101 left wall caused by the extrusion force, at this time the spring III96 expansion push rod 95 from the fixed channel 92 slip out, and then push the air filter 4 in the rectangular frame 5 in this tilt state under the left slide, and then make its left end from the installation opening 10 slip out, so as to facilitate people through the installation opening 10 from the cover 1 air filter 4 out of the maintenance or replacement work, etc.;

[0035] And when installing the air filter 4, just need to install the opening 10 from the air filter 4 into the cover 1 and placed on the rectangular frame 5 above, then extrude the rod 95 make it compression spring III96 and then completely into the fixed channel 92, while pressing down the air filter 4 and rectangular frame 5 left end, in the process of rectangular frame 5 with shaft 6 as the center of the counterclockwise rotation, so that both in the horizontal state, at this time the air filter 4 in the horizontal state, its left end will be the cover 1 left wall stop, through the cover 1 left wall and limiting strip 91 will air filter clamping fixed to prevent its skew, when the rectangular frame 5 and air filter 4 in the horizontal state, the rectangular frame 5 right end stretch spring II82, pressure strip 91 stop air filter 4 right end top indirectly prevent the rectangular frame 5 with shaft 6 as the center of the counterclockwise rotation, further rotate the bolt I73 right move extrusion rod 72 to install the shaft 71 as the center of the counterclockwise rotation, at this time the rod 72 stretch spring I74 and pull block 75 into the card slot 76, and then pull the rectangular frame 5 to fix its left end, at this time through the locking mechanism 7 and fixed mechanism 8 on the rectangular frame 5 and air filter 4 locking effect, prevent the rectangular frame 5 and air filter 4 continue to rotate, so that both will cover 1 into two parts, the next step rotate the drive rod 121 drive gear 122, rack 123 and fixed rod 124 drive edge 11 down, so that the edge 11 will install the opening 10 sealed at the same time, its left end extrusion fixed air filter 4 left end top.

[0036] The application has been described in detail, but the content described is only the preferred embodiment of the application, and cannot be considered as limiting the scope of the application. Any equivalent changes and improvements made according to the scope of the application should still belong to the patent coverage of the application.

Claims

1. An air filter structure, comprising a housing, wherein an air inlet pipe and an air outlet pipe are respectively disposed on the upper and lower sides of the housing, and an air filter is disposed inside the housing between the air inlet pipe and the air outlet pipe, characterized in that: The cover is assembled from an upper shell and a lower shell. A rectangular frame supporting the air filter is provided inside the lower shell. A pivot is provided in the middle of the rectangular frame, with its end embedded in the side wall of the lower shell. A locking mechanism for fixing the rectangular frame and a fixing mechanism for fixing the rectangular frame and the air filter are respectively provided on both sides of the rectangular frame. A pushing mechanism that abuts against one end of the air filter is also provided in the fixing mechanism. An installation opening is provided on the bottom side wall of the upper shell on the same side as the locking mechanism. A perimeter is provided inside the upper shell to seal the installation opening. The perimeter is driven by a lifting mechanism. The locking mechanism includes a mounting shaft arranged longitudinally inside the lower housing, the mounting shaft being located below the rectangular frame, a diagonal rod being provided on the mounting shaft, a bolt I being screwed onto the side wall of the lower housing and abutting one end face of the bottom of the diagonal rod, a spring I being inclined downward on the other end face of the top of the diagonal rod and connected to the bottom wall of the lower housing, a corresponding slot being provided on the inner side wall of the rectangular frame, and a locking block being provided at the top of the diagonal rod extending into the opening of the rectangular frame and located in the slot; The fixing mechanism includes a pressure strip located on the inner wall of the upper housing, the bottom end of the pressure strip abutting against the top end of the air filter, and a spring II connected to the inner bottom wall of the lower housing is provided on the bottom end of the rectangular frame directly below the pressure strip.

2. The air filter structure according to claim 1, characterized in that: The pushing mechanism includes a limiting strip disposed at the top of the rectangular frame and abutting against one end of the air filter. A fixed channel is provided on the end face of the limiting strip on the same side as the air filter. A sliding groove is axially provided on the side wall of the fixed channel. A slider is disposed in the sliding groove. The slider is connected to a push rod in the fixed channel. One end of the push rod abuts against the corresponding end face of the air filter. The other end of the push rod is connected to the corresponding inner wall of the fixed channel by a spring III.

3. The air filter structure according to claim 1, characterized in that: The rectangular frame has a magnetic rod made of electromagnet material evenly arranged on its bottom surface. One end of the air intake pipe extends into the lower housing. A drain pipe is provided on the bottom wall of the lower housing outside the air intake pipe.

4. The air filter structure according to claim 1, characterized in that: The bottom of the upper shell and the top of the lower shell are both bent outwards with folded edges. A sealing layer is provided between the two sets of folded edges, and the two sets of folded edges are fixed together by bolt II.

5. The air filter structure according to claim 1, characterized in that: The bottom end of the edging is provided with a slope, the bottommost end of the bottom slope of the edging is on the same side as the installation opening, the bottommost end of the bottom slope of the edging abuts against the corresponding top surface of the rectangular frame, and the topmost end of the bottom slope of the edging is located above the fixing mechanism.

6. The air filter structure according to claim 1, characterized in that: The lifting mechanism includes a drive rod horizontally positioned above the perimeter. One end of the drive rod extends to the outside of the upper housing. Multiple sets of gears are mounted on the drive rod inside the upper housing. A rack is vertically mounted on each gear and meshes with it. The bottom end of the rack is fixedly connected to the perimeter sidewall via a fixing rod. A force-applying block is located at the end of the drive rod outside the upper housing. A skirt is provided on the outer wall of the upper housing to enclose the force-applying block. A protective cover is fastened to the skirt to cover the force-applying block.

7. The air filter structure according to claim 1, characterized in that: The bottom end of the diagonal rod is located on the same side as bolt I, and spring I is located at the bottom of the top end of the diagonal rod.

Citation Information

Patent Citations

  • Make things convenient for air filter ware of dismouting

    CN207513711U

  • Air filter convenient to disassemble

    CN215672490U