Air filter structure

Abstract

The invention relates to an air filter structure which comprises a cover body, an air inlet pipe and an air outlet pipe are arranged on the upper side and the lower side of the cover body respectively, an air filter located between the air inlet pipe and the air outlet pipe is arranged in the cover body, the cover body is formed by assembling an upper shell and a lower shell, and a rectangular frame for supporting the air filter is arranged in the lower shell. A rotating shaft with the tail end embedded into the side wall of the lower shell is arranged in the middle of the rectangular frame, a locking mechanism for fixing the rectangular frame and a fixing mechanism for fixing the rectangular frame and the air filter are arranged on the two sides of the rectangular frame respectively, and a pushing mechanism abutting against one end of the air filter is further arranged in the fixing mechanism. A mounting opening on the same side as the locking mechanism is formed in the side wall of the bottom of the upper shell, a circle of surrounding edge for sealing the mounting opening is arranged in the upper shell, and the surrounding edge is driven by a lifting mechanism. The filter body is convenient to disassemble and replace.

Description

Technical Field

[0001] The present invention relates to the field of filters, and particularly to an air filter structure. Background Art

[0002] The air filter has a great influence on the service life of an automobile (especially the engine). On the one hand, without the filtering effect of the air filter, the engine will inhale a large amount of air containing dust and particles, resulting in serious wear of the engine cylinders. 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 covered with dust in the air, which will not only reduce the filtering ability, but also hinder the air circulation, resulting in an overly rich air-fuel mixture and abnormal engine operation.

[0003] However, due to the narrow engine compartment, when normally disassembling the air filter, first open an opening between the upper cover and the lower cover of the air filter protection cover, then remove the air filter protection cover from the lower cover, and take it out obliquely from the horizontal state to avoid interference with surrounding components. This process is complex and there are certain difficulties in actual operation due to space problems. Summary of the Invention

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

[0005] The technical problems of the present invention are mainly solved by the following technical solutions:

[0006] An air filter structure includes a cover body. An air inlet pipe and an air outlet pipe are respectively arranged on the upper and lower sides of the cover body. An air filter located between the air inlet pipe and the air outlet pipe is arranged inside the cover body:

[0007] The cover body is assembled by an upper shell and a lower shell. A rectangular frame for supporting the air filter is arranged inside the lower shell. A rotating shaft with its end embedded in the side wall of the lower shell is arranged in the middle of the rectangular frame. Locking mechanisms for fixing the rectangular frame and fixing mechanisms for fixing the rectangular frame and the air filter are respectively arranged on both sides of the rectangular frame. A pushing mechanism that abuts against one end of the air filter is also arranged inside the fixing mechanism. An installation opening on the same side as the locking mechanism is arranged on the bottom side wall of the upper shell. A surrounding edge for sealing the installation opening is arranged inside the upper shell. The surrounding edge is driven by a lifting mechanism;

[0008] The locking mechanism includes a mounting shaft longitudinally arranged inside the lower housing. The mounting shaft is located below the rectangular frame. An inclined rod is arranged on the mounting shaft. A bolt I that abuts against one end face of the bottom of the inclined rod is screwed on the side wall of the lower housing. A spring I connected to the inner bottom wall of the lower housing is inclined downwardly arranged on the other end face of the top of the inclined rod. A card slot corresponding to the inclined rod is arranged on the inner side wall of the rectangular frame. The top end of the inclined rod extends into the opening of the rectangular frame and is provided with a card block located in the card slot.

[0009] The fixing mechanism includes a pressing strip on the inner side wall of the upper housing. The bottom end face of the pressing strip abuts against the top end face of the air filter. A spring II connected to the inner bottom wall of the lower housing is arranged on the bottom end face of the rectangular frame directly below the pressing strip.

[0010] Preferably, the pushing mechanism includes a limiting strip arranged on the top of the rectangular frame and abutting against one end of the air filter. A fixing channel is arranged on the end face of the limiting strip on the same side as the air filter. A sliding groove is axially arranged on the side wall of the fixing channel. A sliding block is arranged in the sliding groove. The sliding block is connected to a push rod in the fixing 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 fixing channel through a spring III.

[0011] Preferably, magnetic rods made of electromagnet material are uniformly arranged on the bottom end face of the rectangular frame. One end of the air inlet pipe extends into the lower housing. A sewage pipe is arranged on the bottom wall of the lower housing outside the air inlet pipe.

[0012] Preferably, the bottom of the upper housing and the top of the lower housing are both bent outwardly to form flanges. A sealing layer is arranged between the upper and lower groups of flanges. And the two groups of flanges are fixed by bolts II.

[0013] Preferably, the bottom end of the surrounding edge is provided with an inclined surface. The lowermost end of the inclined surface at the bottom of the surrounding edge is arranged on the same side as the installation opening. The lowermost end of the inclined surface at the bottom of the surrounding edge abuts against the corresponding top end face of the rectangular frame. The uppermost end of the inclined surface at the bottom of the surrounding edge is located above the fixing mechanism.

[0014] Preferably, the lifting mechanism includes a driving rod horizontally arranged above the surrounding edge. One end of the driving rod extends outside the upper housing. Multiple groups of gears are arranged on the driving rod inside the upper housing. A rack meshing with the gear is vertically arranged on the gear. The bottom end of the rack is fixedly connected to the side wall of the surrounding edge through a fixing rod. A force-applying block located outside the upper housing is arranged at the end of the driving rod. A skirt surrounding the force-applying block is arranged on the outer wall of the upper housing. A protective cover covering the force-applying block is buckled on the skirt.

[0015] Preferably, the lowermost end of the inclined rod is arranged on the same side as the bolt I. The spring I is arranged at the bottom of the topmost end of the inclined rod.

[0016] The beneficial effects of the present invention are as follows: The present invention fixes the air filter and the rectangular frame through the locking mechanism, the surrounding edge, the rotating shaft and the fixing mechanism, so that it is in a horizontal state to filter the air flowing through the cover body. At the same time, when the air filter needs to be taken out, only the surrounding edge needs to be lifted by the lifting mechanism to open the installation opening, and the clamping block in the locking mechanism is slid out of the clamping groove to separate it from the rectangular frame. Then, 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 at the same time, the spring III and the ejector rod in the pushing mechanism push the air filter to slide out of the installation opening, thereby facilitating the removal of the air filter and other operations. BRIEF DESCRIPTION OF THE DRAWINGS

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

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

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

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

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

[0022] In the figure: 1. Cover body, 101. Upper shell, 102. Lower shell, 2. Inlet pipe, 3. 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. Slider, 95. Ejector 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. Drain pipe. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The technical solution of the present invention will be further specifically described below through embodiments and in combination with the drawings.

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

[0025] The cover body 1 is assembled by an upper shell 101 and a lower shell 102. A rectangular frame 5 for supporting the air filter 4 is arranged in the lower shell 102. A rotating shaft 6 with its end embedded in the side wall of the lower shell 102 is arranged in the middle of the rectangular frame 5. A locking mechanism 7 for fixing the rectangular frame 5 and a fixing mechanism 8 for fixing the rectangular frame 5 and the air filter 4 are respectively arranged on both sides of the rectangular frame 5. A pushing mechanism 9 that abuts against one end of the air filter 4 is also arranged in the fixing mechanism 8. An installation opening 10 on the same side as the locking mechanism 7 is arranged on the bottom side wall of the upper shell 101. A surrounding edge 11 for sealing the installation opening 10 is arranged in the upper shell 101. The surrounding edge 11 is driven by a lifting mechanism 12;

[0026] The locking mechanism 7 includes an installation shaft 71 longitudinally arranged in the lower shell 102. The installation shaft 71 is located below the rectangular frame 5. An inclined rod 72 is arranged on the installation shaft 71. A bolt I73 that abuts against the bottom end face of the inclined rod 72 is screwed on the side wall of the lower shell 102. A spring I74 connected to the inner bottom wall of the lower shell 102 is inclined downwardly arranged on the other end face at the top of the inclined rod 72. The lowermost end of the inclined rod 72 is arranged on the same side as the bolt I73. The spring I74 is arranged at the bottom of the topmost end of the inclined rod 72. A clamping groove 75 corresponding to the inclined rod 74 is arranged on the inner side wall of the rectangular frame 5. The top end of the inclined rod 74 extends into the opening of the rectangular frame 5 and a clamping block 76 located in the clamping groove 75 is arranged;

[0027] The fixing mechanism 8 includes a pressing strip 81 on the inner side wall of the upper shell 101. The bottom end face of the pressing strip 81 abuts against the top end face of the air filter 4. A spring II82 connected to the inner bottom wall of the lower shell 102 is arranged on the bottom end face of the rectangular frame 5 directly below the pressing strip 81.

[0028] The pushing mechanism 9 includes a limiting strip 91 arranged on the top of the rectangular frame 5 and abutting against one end of the air filter 4. A fixing channel 92 is arranged on the end face of the limiting strip 91 on the same side as the air filter 4. A sliding groove 93 is axially arranged on the side wall of the fixing channel 92. A sliding block 94 is arranged in the sliding groove 93. The sliding block 94 is connected to a top rod 95 in the fixing channel 92. One end of the top rod 95 abuts against the corresponding end face of the air filter 4. The other end of the top rod 95 is connected to the corresponding inner wall of the fixing channel 92 through a spring III96.

[0029] In this embodiment, magnetic rods 13 made of electromagnet material are uniformly arranged on the bottom end face of the rectangular frame 5. One end of the air inlet pipe 2 extends into the lower shell 102. A sewage discharge pipe 14 is arranged on the bottom wall of the lower shell 102 outside the air inlet pipe 2.

[0030] In this embodiment, the bottom of the upper housing 101 and the top of the lower housing 102 are both bent outward to form flanges. A sealing layer is provided between the upper and lower sets of flanges, and the two sets of flanges are fixed by bolts II.

[0031] The bottom end of the surrounding edge 11 is provided with an inclined surface. The lowermost end of the inclined surface at the bottom of the surrounding edge 11 is arranged on the same side as the installation opening 10. The lowermost end of the inclined surface at the bottom of the surrounding edge 11 abuts against the corresponding top surface of the rectangular frame 5. The uppermost end of the inclined surface at the bottom of the surrounding edge 11 is located above the fixing mechanism 8. This enables the surrounding edge 11 to squeeze and fix the left end of the air filter 4 while not being lifted and suspended by the fixing mechanism 8.

[0032] The lifting mechanism 12 includes a driving rod 121 horizontally arranged above the surrounding edge 11. One end of the driving rod 121 extends outside the upper housing 101. A plurality of groups of gears 122 are arranged on the driving rod 121 inside the upper housing 101. A rack 123 meshing with the gears 122 is vertically arranged on the gears 122. The bottom end of the rack 123 is fixedly connected to the side wall of the surrounding edge 11 through a fixing rod 124. The end of the driving rod 121 is provided with a force-applying block 125 located outside the upper housing 101. A skirt surrounding the force-applying block 125 is arranged on the outer wall of the upper housing 101, and a protective cover 126 covering the force-applying block 125 is buckled on the skirt.

[0033] The usage method of the present invention: When in use, the gas enters the housing 1 through the intake pipe 2 and is filtered by the air filter 4, and then the gas is discharged through the outlet pipe 3. At the same time, the working electromagnetic material magnetic rod 13 can magnetically separate the metal impurities that may be mixed in the air. After it is powered off, the metal impurities fall and accumulate at the bottom of the lower housing 102. When the accumulation reaches a certain amount, the drain pipe 14 can be opened during maintenance to discharge the metal impurities.

[0034] When it is necessary to take out the air filter 4 for maintenance or replacement work, such as Figure 2As shown, the protective cover 126 is pulled out, and the force block 125 is rotated to drive the driving rod 121 and the gear 122 to rotate. The gear 122 drives the rack 123 and the fixing rod 124 to drive the surrounding edge 11 to move upward, thereby opening the installation opening 10, and the surrounding edge 11 is separated from the left end of the air filter 4. Then, the bolt I73 is rotated outward. Then, under the gradual loss of the squeeze of the bolt I73, the spring I74 contracts and pulls the inclined rod 72 to rotate clockwise with the installation shaft 71 as the center, thereby pulling the block 76 out of the slot 75. At this time, under the loss of the squeezing force of the surrounding edge 11, and the loss of the inclined rod 72 and the block 76 pulling the slot 75 on the rectangular frame 5 , the spring II82 contracts and pulls the rectangular frame 5 to rotate clockwise with the rotating shaft 6 as the center, so that the rectangular frame 5 and the air filter 4 are in an inclined state with the left side higher and the right side lower. When the air filter 4 is in an inclined state, it will lose the squeezing force caused by the left side wall of the upper shell 101. At this time, the spring III96 stretches and pushes the push rod 95 to slide out of the fixed channel 92, and then pushes the air filter 4 to slide to the left on the rectangular frame 5 in the inclined state at this time, so that its left end slides out from the installation opening 10, so that people can easily pull the air filter 4 out of the cover body 1 through the installation opening 10 for maintenance or replacement.

[0035] When installing the air filter 4, it is only necessary to insert the air filter 4 into the cover body 1 from the installation opening 10 and place it above the rectangular frame 5, then squeeze the push rod 95 to compress the spring III96 and then completely slide it into the fixed channel 92, and at the same time press the air filter 4 and the left end of the rectangular frame 5 downward. During this process, the rectangular frame 5 rotates counterclockwise with the rotating shaft 6 as the center, so that the two are in a horizontal state. At this time, the air filter 4 is in a horizontal state and its left end will be supported by the left side wall of the cover body 1. The air filter is clamped and fixed by the left side wall of the cover body 1 and the limit strip 91 to prevent it from tilting. When the rectangular frame 5 and the air filter 4 are in a horizontal state, the right end of the rectangular frame 5 stretches the spring II82, and the pressure strip 91 presses against the top of the right end of the air filter 4 to indirectly prevent the rectangular frame 5 from tilting. Continue to rotate counterclockwise with the rotating shaft 6 as the center, further turn the bolt I73 to move right to squeeze the inclined rod 72 to rotate counterclockwise with the installation shaft 71 as the center. At this time, the inclined rod 72 stretches the spring I74 and drives the block 75 to slide into the slot 76, thereby pulling the rectangular frame 5 to fix its left end. At this time, the locking mechanism 7 and the fixing mechanism 8 lock and fix the rectangular frame 5 and the air filter 4 to prevent the rectangular frame 5 and the air filter 4 from continuing to rotate, so that the two separate the cover body 1 into two parts. In the next step, rotate the driving rod 121 to drive the gear 122, the rack 123 and the fixing rod 124 to drive the surrounding edge 11 to move downward, so that the surrounding edge 11 seals the installation opening 10 while the bottom of its left end squeezes and fixes the top of the left end of the air filter 4.

[0036] The above has described the present invention in detail, but the above content is only a preferred embodiment of the present invention and cannot be considered as defining the scope of implementation of the present invention. All equivalent changes and improvements made in accordance with the scope of the application of the present invention shall still fall within the scope covered by the patent of the present invention.

Claims

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

2. An air filter structure according to claim 1, characterized in that: The pushing mechanism includes a limit bar arranged on the top of the rectangular frame and abutting against one end of the air filter, wherein a fixed channel is arranged on the end face of the limit bar on the same side as the air filter, a slide groove is axially arranged on the side wall of the fixed channel, a slider is arranged in the slide groove, the slider is connected to the push rod in the fixed channel, one end of the push rod is abutted against the corresponding end face of the air filter, and the other end of the push rod is connected to the corresponding inner wall of the fixed channel through a spring III.

3. An air filter structure according to claim 1, characterized in that: Magnetic bars made of electromagnet material are evenly arranged on the bottom end surface of the rectangular frame, one end of the air intake pipe extends into the lower shell body, and a sewage pipe is arranged on the bottom wall of the lower shell body outside the air intake pipe.

4. An 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 outward to form folded edges, wherein a sealing layer is provided between the upper and lower groups of folded edges, and the two groups of folded edges are fixed by bolts II.

5. The air filter structure according to claim 1, characterized in that: The bottom end of the surround is provided with an inclined surface, the bottom end of the inclined surface at the bottom of the surround is arranged on the same side as the installation opening, the bottom end of the inclined surface at the bottom of the surround is against the corresponding top end surface of the rectangular frame, and the top end of the inclined surface at the bottom of the surround is located above the fixing mechanism.

6. An air filter structure according to claim 1, characterized in that: The lifting mechanism includes a driving rod laterally arranged above the surrounding edge, one end of the driving rod extends to the outside of the upper shell body, a plurality of gears are arranged on the driving rod in the upper shell body, a rack meshing with the gear is vertically arranged on the gear, the bottom end of the rack is fixedly connected to the side wall of the surrounding edge through a fixing rod, a force block located on the outside of the upper shell body is arranged at the end of the driving rod, a skirt encircling the force block is arranged on the outer wall of the upper shell body, and a protective cover covering the force block is buckled on the skirt.

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

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