Refrigerator filter element convenient to replace

Abstract

The invention relates to the technical field of refrigerator filter elements, in particular to a refrigerator filter element convenient to replace, which comprises a filter element shell, a fixing ring is fixed on the inner wall of the filter element shell, an inclined plane is arranged on the fixing ring, a first guide rail is arranged on the inclined plane, and an annular guide groove is formed in the inner wall of the first guide rail. A first sliding block is arranged on the inner wall of the annular guide groove in a sliding mode, a first guide rod is arranged on the inner wall of the first sliding block in a sliding mode, a ball is rotationally arranged at the end of the first guide rod, and the ball slides in the first guide rail. According to the refrigerator filter element convenient to replace, after the filter element shell is installed at an air inlet of a refrigerator, when air enters the air inlet of the refrigerator and airflow passes through, turbine transmission fan blades are driven to rotate, so that a second guide rod can knock the surface of a filter screen of the air filter element in a reciprocating mode, and dust accumulated on the surface of the filter screen of the air filter element is promoted to shake and fall off.

Description

Technical Field

[0001] The invention relates to the technical field of refrigerator filter elements, in particular to a refrigerator filter element which is easy to replace. Background Art

[0002] When the refrigerator is in use, the compressor needs to draw in outside air for air compression and refrigeration. Therefore, it is usually necessary to install a filter element at the air inlet of the refrigerator to filter the dust in the outside air before drawing it into the refrigerator.

[0003] During the use of the existing refrigerator filter elements on the market, the dust screen inside the filter element is usually easily clogged with impurities and dust every once in a while. Therefore, the dust screen at the end of the filter element needs to be cleaned every once in a while, and the filter element needs to be replaced or cleaned regularly. Therefore, there is a need for a filter element that can automatically clean the clogged filter element end without frequent disassembly. Summary of the invention

[0004] The present invention provides a refrigerator filter element that is easy to replace, which has the beneficial effects of preventing clogging and evenly filtering dust, and solves the problem mentioned in the above background technology that the dust screen in the filter element is easily clogged by impurities and dust every once in a while, so the dust screen at the end of the filter element needs to be cleaned every once in a while, and the filter element needs to be replaced or cleaned regularly. In order to achieve the above purpose, the present invention provides the following technical solutions: a refrigerator filter element that is easy to replace, including a filter element housing, the inner wall of the filter element housing is fixed with a fixing ring, the fixing ring is provided with an inclined surface, the inclined surface is provided with a first guide rail, the inner wall of the first guide rail is provided with an annular guide groove, the inner wall of the annular guide groove is slidably provided with a first slider, the inner wall of the first slider is slidably provided with a first guide rod, the end of the first guide rod is rotatably provided with a ball, and the ball slides in the first guide rail;

[0005] A fixed plate is fixed to one end of the first guide rod, a first return spring is sleeved on the outer wall of the first guide rod, one end of the first return spring is fixed to the outer wall of the first sliding block, the other end of the first return spring is fixed to the outer wall of the fixed plate, a second guide rod for knocking the movable plate is fixed to the outer wall of the fixed plate, a first fixed frame is rotatably provided on the end of the second guide rod, and the movable plate is slidably provided on the inner wall of the filter element housing.

[0006] As an optional solution for an easily replaceable refrigerator filter element described in the present invention, an air inlet is provided on the outer wall of the filter element housing, a first rotating ring is rotatably provided on the inner wall of the air inlet, a fixing rod is fixed on the first rotating ring, a turbine transmission blade is provided on the fixing rod, a connecting rod is fixed on the outer wall of the turbine transmission blade, and a rotating ball is fixed on one end of the connecting rod.

[0007] As an optional solution for an easily replaceable refrigerator filter element described in the present invention, a first fixed frame is fixed to the outer wall of the fixed plate, a groove for limiting the moving direction of the rotating ball is opened on the inner wall of the first fixed frame, and the outer contour of the connecting rod is matched with the inner contour of the first fixed frame.

[0008] As an optional solution for an easily replaceable refrigerator filter element described in the present invention, a plurality of evenly distributed protrusions for abutting against balls are fixed to the inner wall of the first guide track, and the protrusions are arranged in a hemispherical shape.

[0009] As an optional solution for a refrigerator filter element that is easy to replace according to the present invention, wherein: a third guide rod is fixed on the fixed rod, a second rotating ring is fixed on one end of the third guide rod, the second rotating ring is rotatably arranged on the inner wall of the movable plate, a fourth guide rod is slidably arranged on the inner wall of the second rotating ring, and both ends of the fourth guide rod are fixed with a resistance block, and the end of the resistance block is arranged in an arc shape;

[0010] A second guide rod is fixed on the second rotating ring, the resistance block slides on the outer wall of the second guide rod, a second return spring is sleeved on the second guide rod, one end of the second return spring is fixed to the outer wall of the fourth guide rod, and the other end of the second return spring is fixed to the outer wall of the second rotating ring.

[0011] As an optional solution for an easily replaceable refrigerator filter element described in the present invention, a second fixed frame is fixed on the movable plate, and the abutment block abuts against an inner wall of the second fixed frame.

[0012] As an optional solution for an easily replaceable refrigerator filter element described in the present invention, the movable plate is provided with a first air outlet, two second fixed blocks are fixed on the movable plate, the outer walls of the two second fixed blocks are rotatably provided with a rotating rod, the outer wall of the rotating rod is fixed with a third fixed block, the outer wall of the third fixed block is fixed with an air induced baffle, and the outer contour of the air induced baffle is matched with the inner contour of the first air outlet.

[0013] As an optional solution for an easily replaceable refrigerator filter element described in the present invention, a torsion spring is sleeved on the rotating rod, and two ends of the torsion spring are respectively fixed to the outer walls of the third fixed block and the second fixed block.

[0014] As an optional solution for an easily replaceable refrigerator filter element described in the present invention, an air filter element filter screen is installed inside the filter element housing, and a second air outlet is opened at the end of the filter element housing.

[0015] As an optional solution for an easily replaceable refrigerator filter element described in the present invention, a first fixing block is fixed on the filter element housing, and a fixing bolt is threadedly connected to the inner wall of the first fixing block.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] In the present invention, the filter element housing is installed at the air inlet of the refrigerator. When air enters the air inlet of the refrigerator, the airflow drives the turbine transmission blades to rotate, so that the second guide rod can reciprocately knock on the surface of the air filter element filter screen, causing the dust accumulated on the surface of the air filter element filter screen to vibrate and fall off.

[0018] In the present invention, through the rotation of the turbine transmission fan blade, the second guide rod can continuously change the knocking position during the process of knocking the air filter element filter screen in a circular trajectory, so that the area of ​​the air filter element filter screen surface that is knocked is increased, and further knocking shakes off the dust accumulated on the surface of the air filter element filter screen.

[0019] In the present invention, the rotation of the turbine drive blades causes the rotation direction angle of the air inlet baffle to be changed reciprocally, thereby changing the angle and range of the wind entering from the air inlet blowing toward the surface of the air filter element filter screen, so that the air entering from the air inlet can be blown more evenly to every place on the surface of the air filter element filter screen, making the air filter element filter screen more uniform in filtering the incoming air. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the main structure of the present invention;

[0021] Figure 2 It is a schematic diagram of the cross-sectional structure of the main body of the present invention from top view;

[0022] Figure 3 It is a partial enlarged structural schematic diagram of the present invention;

[0023] Figure 4 For the present invention Figure 3 The enlarged structural diagram at B in the middle;

[0024] Figure 5 It is a schematic diagram of the top view structure of the fixing ring and its surroundings of the present invention;

[0025] Figure 6 It is a schematic diagram of the front view structure of the fixing ring and its surroundings of the present invention;

[0026] Figure 7 For the present invention Figure 6 The enlarged structural diagram at A in the middle;

[0027] Figure 8 It is a schematic diagram of the front cross-sectional structure of the fixing ring and its surroundings of the present invention;

[0028] Fig. 9 It is a schematic diagram of the enlarged structure of the movable plate and its surroundings of the present invention.

[0029] Figure numerals: 1, filter housing; 2, first fixing block; 3, fixing bolt; 4, air inlet; 5, first rotating ring; 6, fixing rod; 7, turbine transmission fan blade; 8, connecting rod; 9, rotating ball; 10, fixing ring; 11, inclined plane; 12, first guide rail; 13, protrusion; 14, annular guide groove; 15, first slider; 16, first guide rod; 17, ball; 18, first return spring; 19, fixing plate; 20, second guide rod ; 21. first fixed frame; 22. groove; 23. third guide rod; 24. movable plate; 25. second rotating ring; 26. second fixed block; 27. rotating rod; 28. third fixed block; 29. ​​torsion spring; 30. air baffle; 31. first air outlet; 36. second fixed frame; 37. fourth guide rod; 38. second guide rod; 39. resistance block; 40. second return spring; 41. air filter element; 42. second air outlet. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] Embodiment 1: This embodiment is intended to promote the solution of the problem that during the use of the existing refrigerator filter element on the market, the dust screen in the filter element is usually easily blocked by impurities and dust every once in a while. Therefore, the dust screen position at the end of the filter element needs to be cleaned every once in a while, and the filter element needs to be replaced or cleaned regularly. Therefore, a filter element that can automatically clean the blocked filter element end without frequent disassembly is needed. Please refer to Figure 1-Figure 9 A refrigerator filter element that is easy to replace includes a filter element housing 1, a fixing ring 10 is fixed to the inner wall of the filter element housing 1, a slope 11 is provided on the fixing ring 10, a first guide track 12 is provided on the slope 11, an annular guide groove 14 is provided on the inner wall of the first guide track 12, a first slider 15 is slidably provided on the inner wall of the annular guide groove 14, a first guide rod 16 is slidably provided on the inner wall of the first slider 15, a ball 17 is rotatably provided on the end of the first guide rod 16, and the ball 17 slides in the first guide track 12;

[0032] A fixed plate 19 is fixed to one end of the first guide rod 16, a first return spring 18 is sleeved on the outer wall of the first guide rod 16, one end of the first return spring 18 is fixed to the outer wall of the first slider 15, the other end of the first return spring 18 is fixed to the outer wall of the fixed plate 19, a second guide rod 20 for knocking the movable plate 24 is fixed to the outer wall of the fixed plate 19, a first fixed frame 21 is rotatably provided at the end of the second guide rod 20, and the movable plate 24 is slidably provided on the inner wall of the filter element housing 1;

[0033] An air inlet 4 is provided on the outer wall of the filter housing 1, a first rotating ring 5 is rotatably provided on the inner wall of the air inlet 4, a fixing rod 6 is fixed on the first rotating ring 5, a turbine transmission blade 7 is provided on the fixing rod 6, a connecting rod 8 is fixed on the outer wall of the turbine transmission blade 7, a rotating ball 9 is fixed on one end of the connecting rod 8;

[0034] A first fixing frame 21 is fixed to the outer wall of the fixing plate 19, and a groove 22 for limiting the moving direction of the rotating ball 9 is formed on the inner wall of the first fixing frame 21. The outer contour of the connecting rod 8 matches the inner contour of the first fixing frame 21.

[0035] The inner wall of the first guide track 12 is fixed with a plurality of evenly distributed protrusions 13 for contacting the balls 17, and the protrusions 13 are set to be hemispherical;

[0036] An air filter screen 41 is installed inside the filter housing 1, and a second air outlet 42 is opened at the end of the filter housing 1;

[0037] A first fixing block 2 is fixed on the filter element housing 1, and a fixing bolt 3 is threadedly connected to the inner wall of the first fixing block 2;

[0038] Therefore, in the process of using the filter element, the filter element housing 1 needs to be inserted into the air inlet of the refrigerator first, and then the fixing bolt 3 is screwed into the first fixing block 2, and then the fixing bolt 3 is screwed through the first fixing block 2 into the threaded hole reserved outside the refrigerator air inlet, so as to complete the fixing and installation of the filter element housing 1;

[0039] Then, during the operation of the refrigerator, when the compressor starts to draw air from the outside, the airflow will drive the turbine drive blade 7 to rotate when it reaches the compressor port. After the turbine drive blade 7 rotates, it will drive the connecting rod 8 to rotate synchronously. The connecting rod 8 is set as a square rod, and the outer contour of the connecting rod 8 matches the inner contour of the first fixed frame 21. Therefore, when the turbine drive blade 7 drives the connecting rod 8 to rotate, it will drive the first fixed frame 21 and the fixed plate 19 to rotate in a circle.

[0040] During the rotation of the fixed plate 19, the first guide rod 16 moves synchronously with it. When the first guide rod 16 moves, it will bring the ball 17 to slide along the first guide track 12. Since the first guide track 12 is provided with a plurality of evenly distributed protrusions 13, and the protrusions 13 are set as hemispherical protrusions, when the ball 17 moves and contacts the protrusions 13, the ball 17 will slide and contact along the contour of the protrusions 13, prompting the ball 17 to slide along the first slider 15 with the first guide rod 16 and move in the direction away from the first guide track 12. During the sliding process, the fixed plate 19 moves synchronously with it. The movement of the fixed plate 19 will stretch the first return spring 18 to facilitate subsequent reset. The movement of the fixed plate 19 will bring the second guide rod 20 to move synchronously. When the ball 17 slides completely through the surface of the protrusion 13, the first return spring 18 rebounds from the compressed state and resets the fixed plate 19 and the first guide rod 16.

[0041] Therefore, when the ball 17 slides through a plurality of evenly distributed protrusions 13, it will cause the second guide rod 20 to strike the surface of the air filter element filter screen 41 in a reciprocating circular motion trajectory, causing the dust in the gap blocked at the end of the air filter element filter screen 4 to vibrate and then fall to the outside, thereby increasing the area of ​​the air filter element filter screen 41 through which air can pass, thereby preventing excessive dust blockage from causing poor ventilation of the air filter element filter screen 41;

[0042] The air filtered by the air filter element 41 enters the refrigerator through the second air outlet 42 for recycling;

[0043] The use time of the single cleaning air filter element 41 can be increased to the greatest extent, and the air filter element 41 needs to be disassembled and cleaned at longer intervals. When disassembling, the filter element housing 1 can be quickly removed as a whole by screwing out the bolt 3.

[0044] In this embodiment: by installing the filter element housing 1 at the air inlet of the refrigerator, when air enters the air inlet of the refrigerator, the airflow drives the turbine drive blades 7 to rotate, so that the second guide rod 20 can reciprocately knock on the surface of the air filter element filter screen 41, causing the dust accumulated on the surface of the air filter element filter screen 41 to vibrate and fall off.

[0045] Embodiment 2: This embodiment is intended to promote the solution of the problem of further increasing the range of knocking the surface of the air filter element filter screen 41 on the basis of embodiment 1, and further removing the dust accumulated outside the air filter element filter screen 41. Please refer to Figure 1-Figure 9 , a refrigerator filter that is easy to replace;

[0046] When the turbine drive blade 7 rotates and drives the first slider 15 to slide along the annular guide groove 14, since the first guide track 12 is provided on the inclined surface 11, and the inclined surface 11 is the inclined surface of the surface of the fixed ring 10, the annular guide groove 14 provided in the first guide track 12 is an inclined groove, which will cause the first slider 15 to change along the annular guide groove 14 as the inclination angle of the inclined surface 11 changes. The first guide track 12 is also provided with an inclined groove on the inclined surface 11. At this time, when the ball 17 drives the first guide rod 16 to slide along the inner wall of the first slider 15 in the direction away from the first guide track 12, the sliding of the first guide rod 16 drives the fixed plate 19 and the first fixed frame 21 to deflect by a certain angle along the outer wall of the rotating ball 9, as shown in the attached figure. Figure 6 The status shown in;

[0047] When the first fixed frame 21 and the fixed plate 19 are deflected, the second guide rod 20 will be deflected synchronously with it, and the direction of the second guide rod 20 will be changed. Therefore, in the process of the ball 17 sliding along the inclined first guide rail 12, the second guide rod 20 will be prompted to continuously change its direction. Combined with the second guide rod 20 in Example 1 knocking on the surface of the air filter element filter screen 41 when moving in a circle, the second guide rod 20 will also continuously change the knocking position on this basis to achieve a knocking effect on a larger area of ​​the air filter element filter screen 41.

[0048] In this embodiment: through the rotation of the turbine transmission blade 7, the second guide rod 20 can continuously change the knocking position during the process of knocking the air filter element filter 41 in a circular trajectory, so that the area of ​​the air filter element filter 41 surface being knocked is increased, and further knocking shakes off the dust accumulated on the surface of the air filter element filter 41.

[0049] Embodiment 3: This embodiment is intended to promote the solution of the problem that the air inlet area of ​​the air inlet 4 is smaller than the cross-sectional area of ​​the air filter element filter 41, which easily leads to the surface of the air filter element filter 41 being larger than the area of ​​the air inlet 4 and cannot be effectively filtered by the air drawn in by the air inlet 4. The air will be concentrated at the position where the area of ​​the air inlet 4 overlaps, resulting in uneven utilization of the filtering position of the air filter element filter 41, which is easy to cause blockage at a single position. Please refer to Figure 1-Figure 9 A refrigerator filter element that is easy to replace, a third guide rod 23 is fixed on the fixed rod 6, a second rotating ring 25 is fixed on one end of the third guide rod 23, the second rotating ring 25 is rotatably arranged on the inner wall of the movable plate 24, a fourth guide rod 37 is slidably arranged on the inner wall of the second rotating ring 25, both ends of the fourth guide rod 27 are fixed with a resistance block 39, and the end of the resistance block 39 is set in an arc shape;

[0050] A second guide rod 38 is fixed on the second rotating ring 25, and the abutment block 39 slides on the outer wall of the second guide rod 38. A second return spring 40 is sleeved on the second guide rod 38, and one end of the second return spring 40 is fixed to the outer wall of the fourth guide rod 37, and the other end of the second return spring 40 is fixed to the outer wall of the second rotating ring 25;

[0051] The second fixed frame 36 is fixed on the movable plate 24, and the abutment block 39 abuts against the inner wall of the second fixed frame 36;

[0052] The movable plate 24 is provided with a first air outlet 31, and two second fixed blocks 26 are fixed on the movable plate 24. The outer walls of the two second fixed blocks 26 are rotatably provided with a rotating rod 27, and the outer wall of the rotating rod 27 is fixed with a third fixed block 28. The outer wall of the third fixed block 28 is fixed with an air induction baffle 30, and the outer contour of the air induction baffle 30 matches the inner contour of the first air outlet 31.

[0053] The rotating rod 27 is sleeved with a torsion spring 29, and the two ends of the torsion spring 29 are respectively fixed to the outer walls of the third fixing block 28 and the second fixing block 26;

[0054] During the rotation of the turbine transmission blade 7, the fixed rod 6 will rotate synchronously, and during the rotation of the fixed rod 6, the third guide rod 23 will rotate in a circular manner, and one end of the third guide rod 23 is connected to the second rotating ring 25, so the circumferential movement of the third guide rod 23 will drive the second rotating ring 25 to rotate along the movable plate 24, and the rotation of the second rotating ring 25 will drive the fourth guide rod 37 to move in a circular manner;

[0055] The fourth guide rod 37 will be urged to slide along the inner contour of the second fixed frame 36 during the circular movement of the fourth guide rod 37. When the fourth guide rod 37 moves to both sides of the vertical inner wall of the inner contour of the second fixed frame 36, the friction block 39 will contact the inner wall of the second fixed frame 36, and the friction will cause the fourth guide rod 37 to slide along the second rotating ring 25 toward the position close to the air induction baffle 30. When sliding, the second reset spring 40 is stretched to facilitate subsequent reset. The sliding of the fourth guide rod 37 causes the friction block 39 at the other end to gradually contact the air induction baffle The air baffle plate 30 is rotated to the outer wall of the plate 30, and gradually pushes the air induced baffle plate 30 to rotate. When the air induced baffle plate 30 rotates, it rotates with the third fixed block 28. When the third fixed block 28 rotates, it rotates with the rotating rod 27 along the outer wall rotation connection of the second fixed block 26. During the rotation of the third fixed block 28, the torsion spring 29 is twisted to facilitate subsequent reset. The rotation of the air induced baffle plate 30 can change the angle at which the wind entering from the air inlet 4 blows to the surface of the air filter element filter screen 41. When the fourth guide rod 37 moves with the resistance block 39 to resist the other horizontal edges of the inner wall of the second fixed frame 36, as shown in the attached Fig. 9 As shown in FIG. 1 , at this time, the length of the fourth guide rod 37 is not enough to contact the air baffle 30 .

[0056] In this embodiment: through the rotation of the turbine drive blades 7, the rotation direction angle of the air inlet baffle 30 is changed reciprocally, so that the angle and range of the wind entering from the air inlet 4 blowing toward the surface of the air filter element filter 41 are changed, so that the air entering from the air inlet 4 can be blown more evenly to every place on the surface of the air filter element filter 41, so that the air filter element filter 41 can filter the incoming air more evenly.

[0057] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0058] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A refrigerator filter element that is easy to replace, comprising a filter element housing (1), characterized in that: A fixing ring (10) is fixed on the inner wall of the filter element housing (1), an inclined surface (11) is provided on the fixing ring (10), a first guide track (12) is provided on the inclined surface (11), an annular guide groove (14) is provided on the inner wall of the first guide track (12), a first slider (15) is slidably provided on the inner wall of the annular guide groove (14), a first guide rod (16) is slidably provided on the inner wall of the first slider (15), a ball (17) is rotatably provided on the end of the first guide rod (16), and the ball (17) slides in the first guide track (12); A fixed plate (19) is fixed to one end of the first guide rod (16); a first return spring (18) is sleeved on the outer wall of the first guide rod (16); one end of the first return spring (18) is fixed to the outer wall of the first sliding block (15); the other end of the first return spring (18) is fixed to the outer wall of the fixed plate (19); a second guide rod (20) for striking a movable plate (24) is fixed to the outer wall of the fixed plate (19); a first fixed frame (21) is rotatably provided at the end of the second guide rod (20); and the movable plate (24) is slidably provided on the inner wall of the filter element housing (1).

2. The easily replaceable refrigerator filter according to claim 1, characterized in that: The outer wall of the filter element housing (1) is provided with an air inlet (4), the inner wall of the air inlet (4) is rotatably provided with a first rotating ring (5), a fixing rod (6) is fixed on the first rotating ring (5), a turbine transmission blade (7) is provided on the fixing rod (6), a connecting rod (8) is fixed on the outer wall of the turbine transmission blade (7), and a rotating ball (9) is fixed at one end of the connecting rod (8).

3. The easily replaceable refrigerator filter according to claim 2, characterized in that: A first fixing frame (21) is fixed to the outer wall of the fixing plate (19), a groove (22) is provided on the inner wall of the first fixing frame (21) for limiting the moving direction of the rotating ball (9), and the outer contour of the connecting rod (8) matches the inner contour of the first fixing frame (21).

4. The easily replaceable refrigerator filter according to claim 1, characterized in that: A plurality of evenly distributed protrusions (13) for contacting the balls (17) are fixed to the inner wall of the first guide track (12), and the protrusions (13) are arranged in a hemispherical shape.

5. The easily replaceable refrigerator filter according to claim 2, characterized in that: A third guide rod (23) is fixed on the fixed rod (6), a second rotating ring (25) is fixed to one end of the third guide rod (23), the second rotating ring (25) is rotatably arranged on the inner wall of the movable plate (24), a fourth guide rod (37) is slidably arranged on the inner wall of the second rotating ring (25), both ends of the fourth guide rod (27) are fixed with a resistance block (39), and the end of the resistance block (39) is arranged in an arc shape; A second guide rod (38) is fixed on the second rotating ring (25), the abutment block (39) slides on the outer wall of the second guide rod (38), a second return spring (40) is sleeved on the second guide rod (38), one end of the second return spring (40) is fixed to the outer wall of the fourth guide rod (37), and the other end of the second return spring (40) is fixed to the outer wall of the second rotating ring (25).

6. The easily replaceable refrigerator filter according to claim 5, characterized in that: A second fixed frame (36) is fixed on the movable plate (24), and the abutment block (39) abuts against an inner wall of the second fixed frame (36).

7. The easily replaceable refrigerator filter according to claim 6, characterized in that: The movable plate (24) is provided with a first air outlet (31), and two second fixed blocks (26) are fixed on the movable plate (24). The outer walls of the two second fixed blocks (26) are rotatably provided with a rotating rod (27), the outer wall of the rotating rod (27) is fixed with a third fixed block (28), and the outer wall of the third fixed block (28) is fixed with an air induction baffle (30), and the outer contour of the air induction baffle (30) matches the inner contour of the first air outlet (31).

8. The easily replaceable refrigerator filter according to claim 7, characterized in that: The rotating rod (27) is sleeved with a torsion spring (29), and two ends of the torsion spring (29) are respectively fixed to the outer walls of the third fixing block (28) and the second fixing block (26).

9. The easily replaceable refrigerator filter according to claim 1, characterized in that: An air filter screen (41) is installed inside the filter element housing (1), and a second air outlet (42) is provided at the end of the filter element housing (1).

10. The easily replaceable refrigerator filter according to claim 1, characterized in that: A first fixing block (2) is fixed on the filter element housing (1), and a fixing bolt (3) is threadedly connected to the inner wall of the first fixing block (2).

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