Air filter

Abstract

The utility model provides an air filter, which is used for mounting a filter element and comprises a shell, an air inlet, an air outlet and an air outlet, the fixed shell is provided with an air outlet used for discharging air, the outer shell is buckled to the fixed shell so as to form a cavity used for installing the filter element, and the air inlet, the cavity and the air outlet form a through airflow channel; the fixing part comprises a fixing frame fixedly arranged on the outer shell and a rotating frame rotationally arranged on the fixing frame, and the rotating frame is connected with the fixing shell so that the outer shell can be detachably connected with the fixing shell. After a new filter element is installed on the outer shell, the outer shell can be directly buckled on the fixed shell, and the rotating frame rotates on the fixed frame and is connected to the fixed shell, so that the outer shell is rapidly installed on the fixed shell, tools such as a screwdriver or a wrench are not needed any more, the use of bolts is reduced, extra cost caused by thread damage is avoided, and the practicability is high. And a lot of downtime can be saved through higher replacement speed of the filter element.

Description

Technical Field

[0001] The utility model relates to the technical field of engines, in particular to an air filter. Background Art

[0002] On an engine, in order to make the intake air of the engine cleaner, an air filter is generally arranged at the intake port of the engine. The external air is filtered by the air filter and then enters the engine to participate in combustion, reducing the wear and damage of the engine caused by impurities in the air. However, at present, the air filter is basically fixed and assembled by bolts. When replacing the internal filter element, tools such as a screwdriver or a wrench are required to loosen the fixing screws. This not only takes time and effort, but also easily causes the thread holes to become stripped, indirectly increasing the cost. Summary of the Utility Model

[0003] Aiming at the deficiencies in the prior art, the utility model provides an air filter, which solves the problems that the disassembly of the air filter in the prior art is not only time-consuming and laborious, but also easily causes the thread holes to become stripped, indirectly increasing the cost.

[0004] According to the embodiments of the utility model, the following technical solutions are adopted:

[0005] An air filter for installing a filter element, comprising:

[0006] A housing provided with an air inlet for air intake;

[0007] A fixed housing provided with an air outlet for air outlet. The housing is buckled on the fixed housing to form a chamber for installing the filter element, and the air inlet, the chamber and the air outlet form a through air flow channel; and

[0008] A fixing member, including a fixing frame fixedly arranged on the housing and a rotating frame rotatably arranged on the fixing frame. The rotating frame is connected to the fixed housing so that the housing and the fixed housing are detachably connected.

[0009] Compared with the prior art, the utility model has the following beneficial effects:

[0010] In this solution, with the cooperation of the fixing member, when separating the housing and the fixed housing to take out the filter element, only need to rotate the rotating frame in the fixing member to separate the rotating frame from the fixed housing, thereby releasing the restriction of the housing on the fixed housing, and directly taking out the housing to disassemble the internal filter element; at the same time, after installing a new filter element into the housing, the housing can be directly buckled on the fixed housing, and the rotating frame can be rotated on the fixing frame and connected to the fixed housing, so as to quickly install the housing on the fixed housing. Tools such as a screwdriver or a wrench are no longer needed, and the use of bolts is also reduced, avoiding the additional cost caused by thread damage. Through the faster replacement speed of the filter element, a large amount of downtime can be saved.

[0011] Preferably, the end of the rotating frame is bent to form a fixing part, and the fixing part is clamped to the fixing shell.

[0012] Preferably, the fixing shell is provided with a limiting protrusion, and the fixing part is clamped to the side of the limiting protrusion.

[0013] Preferably, the filter element is provided with a limiting ring, and the limiting ring is clamped between the outer shell and the fixing shell.

[0014] Preferably, the opening edge of the outer shell extends outward to form a positioning protrusion, and the opening edge of the fixing shell is provided with a positioning block. When the fixing shell is buckled to the outer shell, the positioning block is clamped to the inner side of the positioning protrusion.

[0015] Preferably, the fixing shell is provided with a mounting seat coaxial with the air outlet, and the mounting seat is provided with a mounting hole for a bolt to pass through.

[0016] Preferably, the mounting seat has a groove for mounting a sealing ring.

[0017] Preferably, it further includes a cover plate, which is arranged at the air inlet and is provided with a plurality of through holes whose axes are parallel to the axis of the air inlet.

[0018] Preferably, a plurality of mounting blocks are provided on the cover plate. Description of the Drawings

[0019] Figure 1 It is a schematic three-dimensional structure diagram of the air filter in the embodiment of the present invention.

[0020] Figure 2 It is Figure 1 a schematic side structure diagram of

[0021] Figure 3 It is Figure 1 a schematic cross-sectional structure diagram of one of

[0022] Figure 4 It is Figure 1 another schematic cross-sectional structure diagram of

[0023] Figure 5 It is a schematic exploded structure diagram of the air filter in the embodiment of the present invention.

[0024] In the above-mentioned drawings: 1. Outer shell; 101. Air inlet; 2. Fixing shell; 201. Limiting protrusion; 3. Air outlet; 301. Mounting seat; 302. Mounting hole; 303. Groove; 4. Fixing piece; 401. Fixing frame; 402. Rotating frame; 403. Fixing part; 5. Filter element; 501. Limiting ring; 6. Cover plate; 601. Mounting block; 7. Positioning protrusion; 8. Positioning block. Detailed Embodiments

[0025] The technical solutions in the present utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0026] As Figures 1 to 5 shown, an embodiment of the present utility model provides an air filter for installing a filter element 5, including:

[0027] A housing 1 having an air inlet 101 for intake air;

[0028] A fixed housing 2 having an air outlet 3 for outlet air. The housing 1 is snapped onto the fixed housing 2 to form a chamber for installing the filter element 5, and the air inlet 101, the chamber, and the air outlet 3 form a continuous air flow channel; and

[0029] A fixing member 4 including a fixing frame 401 fixedly provided on the housing 1 and a rotating frame 402 rotatably provided on the fixing frame 401. The rotating frame 402 is connected to the fixed housing 2 to detachably connect the housing 1 and the fixed housing 2.

[0030] In the embodiment of the present utility model, under the assembly of the fixing member 4, by fixedly clamping the fixing frame 401 on the side of the housing 1 and rotatably arranging one end of the rotating frame 402 on the fixing frame 401, when assembling the housing 1 onto the fixed housing 2, the rotating frames 402 on both sides of the housing 1 are opened. When the housing 1 is snapped onto the fixed housing 2, the rotating frames 402 on both sides of the housing 1 can be rotated to be snapped onto the side of the fixed housing 2, thus quickly completing the assembly.

[0031] Secondly, when separating the housing 1 and the fixed housing 2 to take out the filter element 5, only need to rotate the rotating frame 402 in the fixing member 4 to separate the rotating frame 402 from the fixed housing 2, thereby releasing the restriction of the housing 1 on the fixed housing 2. The housing 1 can be directly taken out to disassemble the internal filter element 5; at the same time, after installing a new filter element 5 into the housing 1, the housing 1 can be directly snapped onto the fixed housing 2, and the rotating frame 402 can be rotated on the fixing frame 401 and connected to the fixed housing 2, so that the housing 1 can be quickly installed on the fixed housing 2. Tools such as screwdrivers or wrenches are no longer needed, and the use of bolts is also reduced, avoiding the additional cost caused by thread damage. Through the faster replacement speed of the filter element 5, a large amount of downtime can be saved.

[0032] Based on the above solution, as Figure 5As shown, the end of the rotating frame 402 is bent to form a fixing portion 403, and the fixing portion 403 is clamped to the fixed shell 2; specifically, when the rotating frame 402 is clamped with the fixed shell 2, because the rotating frame 402 itself is elastic and has an arc shape as a whole, and the fixing portion 403 is bent in the arc bending direction of the rotating frame 402, when the outer shell 1 and the fixed shell 2 are buckled with each other, the rotating frame 402 is pulled to cause a certain deformation, so that the fixing portion 403 of the rotating frame 402 is pressed on the surface of the fixed shell 2, and after the rotating frame 402 is released, the fixing portion 403 increases the force of pressing on the surface of the fixed shell 2 under the elastic force of the rotating frame 402, thereby ensuring the stability of the connection between the fixed shell 2 and the outer shell 1.

[0033] Specifically, Figure 1 As shown, the fixed shell 2 is provided with a limiting protrusion 201, and the fixing part 403 is clamped on the side of the limiting protrusion 201; the position of the limiting protrusion 201 corresponds to the fixing part 403, and the limiting protrusion 201 forms a groove structure on the surface of the fixed shell 2. When the fixing part 403 is clamped on the surface of the fixed shell 2, the fixing part 403 can be limited by the limiting protrusion 201, so as to prevent the fixing part 403 from detaching from the fixed shell 2, and further ensure the stability of the connection between the fixed shell 2 and the outer shell 1.

[0034] Specifically, Figure 3 and Figure 4 As shown, the filter element 5 is provided with a limiting ring 501, and the limiting ring 501 is clamped between the outer shell 1 and the fixed shell 2; the limiting ring 501 provides a positioning function for the installation of the filter element 5. When installing it, the limiting ring 501 is clamped on the mouth of the outer shell 1, and the outer shell 1 is buckled on the fixed shell 2, so that the limiting ring 501 is just clamped on the mouth of the fixed shell 2, ensuring that the filter element 5 is firmly installed between the outer shell 1 and the fixed shell 2, thereby improving the air filtration effect.

[0035] Specifically, Figure 5 As shown, the opening edge of the shell 1 extends outward to form a positioning protrusion 7, and the opening edge of the fixed shell 2 is provided with a positioning block 8. When the fixed shell 2 is buckled into the shell 1, the positioning block 8 is clamped on the inner side of the positioning protrusion 7; under the action of the positioning block 8 and the positioning protrusion 7, the installation of the shell 1 and the fixed shell 2 can be positioned, so that when the shell 1 and the fixed shell 2 are docked, the mouths of the two are just corresponding, and no offset will occur, which is convenient for the assembly of the two.

[0036] Specifically, Figure 1As shown, the fixed housing 2 is provided with a mounting seat 301 coaxial with the air outlet 3, and the mounting seat 301 is provided with mounting holes 302 for bolts to pass through; when installing the fixed housing 2, the fixed housing 2 can be docked at the intake position of the engine through the mounting seat 301, and the bolts are passed through the mounting holes 302 and fastened at the intake position of the engine. When replacing the filter element 5 later, the position of the fixed housing 2 will not be affected, and only the outer housing 1 needs to be disassembled.

[0037] Moreover, the mounting seat 301 has a groove 303 for installing a sealing ring, and the sealing ring can be installed in the groove 303 so that the other side of the sealing ring abuts against the intake position of the engine, ensuring the sealing of the connection between the two.

[0038] Based on the above solution, as Figure 5 shown, it further includes a cover plate 6, which is arranged at the air inlet 101 and is provided with a plurality of through holes whose axes are parallel to the axis of the air inlet 101; by buckling the cover plate 6 at the position of the air inlet 101 to block the air inlet 101, but the cover plate 6 is provided with a plurality of through holes. After the air flow enters the air inlet 101, the air flow is shunted through the plurality of through holes, making the air flow entering the chamber more uniform and improving the filtering effect. Moreover, the cover plate 6 is provided with a plurality of mounting blocks 601, which facilitates the fixing and installation of the cover plate 6 by screwing the screws through the respective mounting blocks 601.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered by the scope of the claims of the present invention.

Claims

1. An air filter for installing a filter element (5), characterized in that, Comprising: A housing (1) provided with an air inlet (101) for air intake; A fixed housing (2) provided with an air outlet (3) for air outlet. The housing (1) is snapped onto the fixed housing (2) to form a chamber for installing the filter element (5), and the air inlet (101), the chamber, and the air outlet (3) form a through air flow channel; and A fixing member (4) comprising a fixing bracket (401) fixedly provided on the housing (1) and a rotating bracket (402) rotatably provided on the fixing bracket (401). The rotating bracket (402) is connected to the fixed housing (2) so that the housing (1) and the fixed housing (2) are detachably connected.

2. The air filter according to claim 1, wherein, An end of the rotating bracket (402) is bent to form a fixing portion (403), and the fixing portion (403) is snap-fitted to the fixed housing (2).

3. The air filter according to claim 2, characterized in that, The fixed housing (2) is provided with a limiting protrusion (201), and the fixing portion (403) is snap-fitted to the side of the limiting protrusion (201).

4. The air filter according to claim 1, wherein, The filter element (5) is provided with a limiting ring (501), and the limiting ring (501) is snap-fitted between the housing (1) and the fixed housing (2).

5. An air filter according to claim 1, characterized in that, An opening edge of the housing (1) extends outward to form a positioning protrusion (7), and the opening edge of the fixed housing (2) is provided with a positioning block (8). When the fixed housing (2) is snapped onto the housing (1), the positioning block (8) is snap-fitted inside the positioning protrusion (7).

6. The air filter according to claim 1, characterized in that, The fixed housing (2) is provided with a mounting seat (301) coaxial with the air outlet (3), and the mounting seat (301) is provided with mounting holes (302) for bolts to pass through.

7. The air filter according to claim 6, characterized in that, The mounting seat (301) has a groove (303) for installing a sealing ring.

8. An air filter according to claim 1, characterized in that, It further includes a cover plate (6) provided at the air inlet (101) and provided with a plurality of through holes whose axes are parallel to the axis of the air inlet (101).

9. The air filter according to claim 8, characterized in that, A plurality of mounting blocks (601) are provided on the cover plate (6).

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