Multi-layer combined range hood filter screen

Abstract

The utility model discloses a multi-layer combined range hood filter screen which comprises a first outer filter screen and a second outer filter screen, the second outer filter screen is detachably connected to the first outer filter screen, an installation cavity is defined by the second outer filter screen and the first outer filter screen, an inner filter screen is arranged in the installation cavity, a plurality of first outer filter screen holes are formed in the first outer filter screen, and a plurality of second outer filter screen holes are formed in the second outer filter screen. A plurality of first outer filter screen holes are formed in the first outer filter screen, a plurality of second outer filter screen holes are formed in the second outer filter screen, a plurality of inner filter screen holes are formed in the inner filter screen, a plurality of first positioning blocks abutting against one side of the inner filter screen are arranged on the edge portions of the inner sides of the first outer filter screen holes, and a plurality of second positioning blocks abutting against the other side of the inner filter screen are arranged on the edge portions of the inner sides of the second outer filter screen holes. The inner filter screen is clamped by the first positioning block and the second positioning block, and a locking device capable of locking the first outer filter screen and the second outer filter screen is arranged between the first outer filter screen and the second outer filter screen. The integral structure is simple, and the inner filter screen is firmly fixed.

Description

[Technical field]

[0001] The utility model relates to a multi-layer combined range hood filter. [Background technology]

[0002] In order to improve the problem of kitchen fume and create a good kitchen environment, people often install range hoods in the kitchen to collect or discharge the harmful exhaust gas and fume generated during cooking to the outside. A filter is usually set at the air inlet of the range hood to filter the fume so that the grease can adhere to the filter. At present, in order to improve the fume filtration effect, some manufacturers will combine multiple layers of filters together, thereby greatly increasing the contact area of ​​the fume, so that the fume can adhere to the filter to the greatest extent and improve the grease separation. In this type of combined filter, the inner filter needs to be easily disassembled, and there is often a gap between the edge of the inner filter and the inner wall of the outer filter, and it is difficult to achieve precise matching of the layers of filters in the front and back directions. However, the existing multi-layer combined filter cannot fix the inner filter well, so the inner filter is prone to vibrate under the operation of the fan and the impact of high-speed airflow, and collide with the outer filter, generating noise, affecting the overall service life and the user experience of the range hood.

[0003] Therefore, the present invention is just produced based on the above shortcomings. [Contents of the utility model]

[0004] The utility model aims to overcome the shortcomings of the prior art and provide a multi-layer combined range hood filter with a simple structure and firm fixation.

[0005] The utility model is realized by the following technical solutions:

[0006] A multi-layer combined range hood filter, characterized in that it includes a first outer filter 1 and a second outer filter 2 detachably connected to the first outer filter 1 and surrounding an installation cavity 11 with the first outer filter 1, an inner filter 3 is arranged in the installation cavity 11, the first outer filter 1 is provided with a plurality of first outer filter holes 12, the second outer filter 2 is provided with a plurality of second outer filter holes 21, the inner filter 3 is provided with a plurality of inner filter holes 31, the inner side edges of the first outer filter holes 12 are provided with a plurality of first positioning blocks 13 abutting against one side of the inner filter 3, the inner side edges of the second outer filter holes 21 abut against the second positioning blocks 22 on the other side of the inner filter 3, the first positioning blocks 13 and the second positioning blocks 22 clamp the inner filter 3, and a locking device 4 capable of locking the first outer filter 1 and the second outer filter 2 is provided between the first outer filter 1 and the second outer filter 2.

[0007] The multi-layer combined range hood filter as described above is characterized in that: the first outer filter hole 12 and the second outer filter hole 21 are strip holes and the edges protrude toward one side of the inner filter 3 to form a first convex edge and a second convex edge respectively, the first positioning block 13 is arranged on the first convex edge, and the second positioning block 22 is arranged on the second convex edge.

[0008] The multi-layer combined range hood filter as described above is characterized in that: the inner filter hole 31 is a strip hole and the edge protrudes toward the second outer filter 2 to form a third convex edge, the first positioning blocks 13 are relatively spaced apart and arranged on adjacent first convex edges, and the second positioning blocks 22 are relatively spaced apart and arranged on adjacent second convex edges and are located on both sides of the third convex edge.

[0009] The multi-layer combined range hood filter as described above is characterized in that: the two inner ends of the first outer filter 1 are provided with a first clamping block 14 that can abut against one side of the inner filter 3, and the two inner ends of the second outer filter 2 are provided with a second clamping block 23 that can abut against the other side of the inner filter 3 and cooperate with the first clamping block 14 to clamp the inner filter 3 between the first outer filter 1 and the second outer filter 2.

[0010] The multi-layer combined range hood filter as described above is characterized in that: the first clamping blocks 14 are respectively provided with a plurality of them at both ends of the first outer filter 1 and are spaced apart along the length direction of the first outer filter 1, and the second clamping blocks 23 are respectively provided with a plurality of them at both ends of the second outer filter 2 and are spaced apart along the length direction of the second outer filter 2.

[0011] The multi-layer combined range hood filter as described above is characterized in that: the locking device 4 includes a first positioning hole 41 provided on one end of the first outer filter 1, a second positioning hole 42 on the other end of the first outer filter 1, a first clamping block 43 provided on one end of the second outer filter 2 and capable of being inserted into the first positioning hole 41, and a second clamping block 44 provided on the other end of the second outer filter 2 and capable of being inserted into the second positioning hole 42. The second outer filter 2 or the first outer filter 1 is provided with a spring-pressing member 45 which can press the second outer filter 2 to move so that the second clamping block 44 is engaged with the second positioning hole 42 when the first clamping block 43 is engaged with the first positioning hole 41.

[0012] The multi-layer combined range hood filter as described above is characterized in that: a mounting hole 26 is provided on the second outer filter 2, the mounting hole 26 is on the same side as the first clamping block 43, and the spring-pressing member 45 is an elastic pin which is telescopically arranged in the mounting hole 26 and one end of which can press the inner wall of the first outer filter 1 to move the second outer filter 2 on the first outer filter 1.

[0013] The multi-layer combined range hood filter as described above is characterized in that: the second outer filter 2 is provided with a toggle block 27 for driving the second outer filter 2 to compress the elastic pin into the mounting hole 26 to separate the second clamping block 44 from the second positioning hole 42 .

[0014] The multi-layer combined range hood filter as described above is characterized in that: the first positioning hole 41 and the second positioning hole 42 are provided in plurality and are spaced apart along the length direction of the first outer filter 1, the first clamping block 43 and the second clamping block 44 are provided in plurality and are spaced apart along the length direction of the second outer filter 2, the mounting holes 26 are provided in plurality and are spaced apart along the length direction of the second outer filter 2, and the spring-pressing members 45 are provided in plurality corresponding to the mounting holes 26.

[0015] Compared with the prior art, the utility model has the following advantages:

[0016] 1. The utility model has three layers of filter screens. When the first outer filter screen, the inner filter screen and the second outer filter screen are assembled together, the first positioning block cooperates with the second positioning block to clamp the inner filter screen between the first outer filter screen and the second outer filter screen, so that the inner filter screen will not move back and forth. The overall structure is simple, the inner filter screen is firmly fixed, and the inner filter screen will not collide with the first outer filter screen and the second outer filter screen on the outside during operation, which can extend the overall service life and avoid noise during operation.

[0017] 2. When assembling the utility model, first install the inner filter into the installation cavity of the first outer filter, then align and snap-fit ​​the first clamping block of the second outer filter with the first positioning hole of the first outer filter, then press the second outer filter to compress the spring-pressing part, and when the spring-pressing part recovers, it will spring-press the second outer filter to move so that the second clamping block is snap-fitted with the second positioning hole; when the filter needs to be removed, the second outer filter can be pushed to separate the second clamping block from the second positioning hole, so that the second outer filter can be removed, and finally the inner filter is taken out from the first outer filter to realize the disassembly of the filter assembly. The overall structure is simple, and the assembly and disassembly are convenient and quick, which is convenient for daily maintenance and cleaning.

Brief Description of the Drawings

[0018] Figure 1 It is a three-dimensional diagram of the utility model;

[0019] Figure 2 It is an exploded view of the utility model;

[0020] Figure 3 It is an exploded view of the utility model from another direction;

[0021] Figure 4 It is a cross-sectional view of the utility model;

[0022] Figure 5 yes Figure 4 Enlarged view of point A in the middle. [Specific implementation method]

[0023] The utility model is further described below in conjunction with the accompanying drawings:

[0024] like Figures 1 to 5 As shown, a multi-layer combined range hood filter comprises a first outer filter 1 and a second outer filter 2 which is detachably connected to the first outer filter 1 and forms an installation cavity 11 with the first outer filter 1, an inner filter 3 is arranged in the installation cavity 11, a plurality of first outer filter holes 12 are arranged on the first outer filter 1, a plurality of second outer filter holes 21 are arranged on the second outer filter 2, a plurality of inner filter holes 31 are arranged on the inner filter 3, a plurality of first positioning blocks 13 which abut against one side of the inner filter 3 are arranged on the inner side edge of the first outer filter hole 12, a second positioning block 22 which abuts against the other side of the inner filter 3 is arranged on the inner side edge of the second outer filter hole 21, the first positioning block 13 and the second positioning block 22 clamp the inner filter 3, and a locking device 4 which can lock the first outer filter 1 and the second outer filter 2 is arranged between the first outer filter 1 and the second outer filter 2. The multi-layer combined range hood filter has three layers of filters, wherein the first outer filter 1, the second outer filter 2 and the inner filter 3 are all in the shape of square covers, and the middle part of them is the filter surface, and each filter surface is respectively provided with a plurality of first outer filter holes 12, a plurality of second outer filter holes 21 and a plurality of inner filter holes 31.

[0025] Specifically, the first outer filter hole 12 and the second outer filter hole 21 are strip holes and their edges protrude toward one side of the inner filter 3 to form a first convex edge and a second convex edge respectively. The first positioning block 13 is arranged on the first convex edge, and the second positioning block 22 is arranged on the second convex edge.

[0026] Specifically, the inner filter holes 31 are staggered with the first outer filter holes 12 and the second outer filter holes 21 in the horizontal direction, the inner filter holes 31 are strip holes and the edges protrude toward the second outer filter 2 to form a third convex edge, the first positioning blocks 13 are relatively spaced apart and arranged on the adjacent first convex edges, and the second positioning blocks 22 are relatively spaced apart and arranged on the adjacent second convex edges and are located on both sides of the third convex edge.

[0027] When the first outer filter 1, the inner filter 3 and the second outer filter 2 are assembled together, the first positioning block 13 cooperates with the second positioning block 22 to clamp the inner filter 3 between the first outer filter 1 and the second outer filter 2, so that the inner filter 3 will not move forward and backward. At the same time, since the two second positioning blocks 22 are respectively arranged on the outside of the third convex edge, the inner filter 3 will not move left and right. The overall structure is simple, the inner filter 3 is firmly fixed, and the inner filter 3 will not collide with the first outer filter 1 and the second outer filter 2 on the outside during operation, which can extend the overall service life and avoid noise during operation.

[0028] Furthermore, if Figure 2As shown, the inner ends of the first outer filter screen 1 are provided with first clamping blocks 14 that can abut against one side of the inner filter screen 3, as shown in FIG. Figure 3 As shown, the inner ends of the second outer filter screen 2 are provided with second clamping blocks 23 which can abut against the other side of the inner filter screen 3 and cooperate with the first clamping block 14 to clamp the inner filter screen 3 between the first outer filter screen 1 and the second outer filter screen 2 .

[0029] Specifically, a plurality of first clamping blocks 14 are respectively provided at both ends of the first outer filter screen 1 and are spaced apart along the length direction of the first outer filter screen 1 , and a plurality of second clamping blocks 23 are respectively provided at both ends of the second outer filter screen 2 and are spaced apart along the length direction of the second outer filter screen 2 .

[0030] In the utility model, the locking device 4 includes a first positioning hole 41 provided on one end of the first outer filter 1, a second positioning hole 42 provided on the other end of the first outer filter 1, a first clamping block 43 provided on one end of the second outer filter 2 and capable of being inserted into the first positioning hole 41, and a second clamping block 44 provided on the other end of the second outer filter 2 and capable of being inserted into the second positioning hole 42. The second outer filter 2 or the first outer filter 1 is provided with a spring-pressing member 45 which can press the second outer filter 2 to move so that the second clamping block 44 is inserted into the second positioning hole 42 after the first clamping block 43 is inserted into the first positioning hole 41. Specifically, the first positioning hole 41 and the second positioning hole 42 are provided in plurality and are spaced apart along the length direction of the first outer filter 1, and correspondingly, the first clamping block 43 and the second clamping block 44 are provided in plurality and are spaced apart along the length direction of the second outer filter 2, so that the multi-layer combined range hood filter can be installed firmly and reliably. When assembling the utility model, the inner filter 3 is first installed into the installation cavity 11 of the first outer filter 1, and then the first clamping block 43 on the second outer filter 2 is aligned and clamped with the first positioning hole 41 on the first outer filter 1, and then the second outer filter 2 is pressed to compress the spring-pressing member 45, and when the spring-pressing member 45 is restored, it will press the second outer filter 2 to move so that the second clamping block 44 is clamped with the second positioning hole 42; when the filter needs to be removed, the second outer filter 2 can be pushed to separate the second clamping block 44 from the second positioning hole 42, so that the second outer filter 2 can be removed, and finally the inner filter 3 is taken out from the installation cavity 11 to realize the disassembly of the filter assembly. The overall structure is simple, and the assembly and disassembly are convenient and quick, which is convenient for daily maintenance and cleaning.

[0031] like Figure 2 and Figure 3As shown, the second outer filter 2 is provided with a mounting hole 26, and the mounting hole 26 is on the same side as the first clamping block 43. The elastic member 45 is an elastic pin which is telescopically arranged in the mounting hole 26 and one end of which can elastically press the inner wall of the first outer filter 1 to move the second outer filter 2 on the first outer filter 1. Specifically, there are a plurality of mounting holes 26 and they are arranged at intervals along the length direction of the second outer filter 2. There are a plurality of elastic members 45 corresponding to the mounting holes 26. When the second outer filter 2 is installed in the first outer filter 1, one end of the elastic pin abuts against the inner wall of the first outer filter 1, and the elastic pin is compressed, which always gives the second outer filter 2 a reaction force, so that one end of the second clamping block 44 abuts against the inner wall of the second positioning hole 42, so as to prevent the second clamping block 44 from separating from the second positioning hole 42. Specifically, the elastic pin includes a pin sleeve, a positioning pin, a spring, a retaining ring, etc.

[0032] In order to facilitate disassembly, the second outer filter screen 2 is provided with a toggle block 27 for driving the second outer filter screen 2 to compress the elastic pin into the mounting hole 26 so that the second clamping block 44 is separated from the second positioning hole 42. After the installer grasps the toggle block 27 by hand and moves the second outer filter screen 2 toward the first positioning hole 41 against the elastic force of the elastic pin, the second clamping block 44 is separated from the second positioning hole 42, and then pulls outward to separate the first clamping block 43 from the first positioning hole 41, so that the second outer filter screen 2 can be disassembled.

[0033] like Figure 1 As shown, an oil leakage port 5 is provided between the first outer filter 1 and the second outer filter 2, which is connected to the installation cavity 11 and allows the oil in the installation cavity 11 to flow out. The oil leakage port 5 is surrounded by the first outer filter 1 and the second outer filter 2 and is arranged on the side of the multi-layer combined range hood filter close to the ground. The oil accumulated in the installation cavity after the oil smoke is filtered by the first outer filter 1, the inner filter 3 and the second outer filter 2 can fall from the oil leakage port 5 into the oil cup under the action of gravity. The setting of the oil leakage port can reduce the accumulation of oil in the installation cavity 11, making the first outer filter 1, the second outer filter 2 and the inner filter 3 easier to clean.

[0034] In order to facilitate the installation of the multi-layer combined range hood filter into or removal from the range hood, a handle 15 for grasping is provided on the outer side of the first outer filter 1, and the user can grasp the handle 17 to move the multi-layer combined range hood filter.

Claims

1. A multi-layer combined range hood filter, characterized in that: The invention comprises a first outer filter (1) and a second outer filter (2) which is detachably connected to the first outer filter (1) and forms a mounting cavity (11) with the first outer filter (1), wherein an inner filter (3) is arranged in the mounting cavity (11), the first outer filter (1) is provided with a plurality of first outer filter holes (12), the second outer filter (2) is provided with a plurality of second outer filter holes (21), the inner filter (3) is provided with a plurality of inner filter holes (31), and the first outer filter The inner side edge of the hole (12) is provided with a plurality of first positioning blocks (13) abutting against one side of the inner filter (3); the inner side edge of the second outer filter hole (21) abuts against the second positioning block (22) on the other side of the inner filter (3); the first positioning blocks (13) and the second positioning blocks (22) clamp the inner filter (3); and a locking device (4) capable of locking the first outer filter (1) and the second outer filter (2) is provided between the first outer filter (1) and the second outer filter (2).

2. The multi-layer combined range hood filter according to claim 1, characterized in that: The first outer filter screen hole (12) and the second outer filter screen hole (21) are strip-shaped holes and their edges protrude toward one side of the inner filter screen (3) to form a first convex edge and a second convex edge respectively; the first positioning block (13) is arranged on the first convex edge, and the second positioning block (22) is arranged on the second convex edge.

3. The multi-layer combined range hood filter according to claim 2, characterized in that: The inner filter screen hole (31) is a strip-shaped hole and the edge thereof protrudes toward one side of the second outer filter screen (2) to form a third convex edge. The first positioning blocks (13) are relatively spaced apart and arranged on adjacent first convex edges. The second positioning blocks (22) are relatively spaced apart and arranged on adjacent second convex edges and are located on both sides of the third convex edge.

4. The multi-layer combined range hood filter according to claim 1, characterized in that: The first outer filter (1) has two inner ends provided with first clamping blocks (14) capable of abutting against one side of the inner filter (3), and the second outer filter (2) has two inner ends provided with second clamping blocks (23) capable of abutting against the other side of the inner filter (3) and cooperating with the first clamping blocks (14) to clamp the inner filter (3) between the first outer filter (1) and the second outer filter (2).

5. The multi-layer combined range hood filter according to claim 4, characterized in that: The first clamping blocks (14) are provided in plurality at both ends of the first outer filter (1) and are spaced apart along the length direction of the first outer filter (1); the second clamping blocks (23) are provided in plurality at both ends of the second outer filter (2) and are spaced apart along the length direction of the second outer filter (2).

6. The multi-layer combined range hood filter according to claim 1, characterized in that: The locking device (4) comprises a first positioning hole (41) provided on one end of the first outer filter (1), a second positioning hole (42) provided on the other end of the first outer filter (1), a first clamping block (43) provided on one end of the second outer filter (2) and capable of being inserted into the first positioning hole (41), and a second clamping block (44) provided on the other end of the second outer filter (2) and capable of being inserted into the second positioning hole (42). The second outer filter (2) or the first outer filter (1) is provided with a spring-pressing member (45) which can press the second outer filter (2) to move so that the second clamping block (44) is inserted into the second positioning hole (42) when the first clamping block (43) is inserted into the first positioning hole (41).

7. The multi-layer combined range hood filter according to claim 6, characterized in that: The second outer filter (2) is provided with a mounting hole (26), the mounting hole (26) being on the same side as the first clamping block (43), and the spring-pressing member (45) being an elastic pin which is telescopically arranged in the mounting hole (26) and has one end capable of spring-pressing the inner wall of the first outer filter (1) to move the second outer filter (2) on the first outer filter (1).

8. The multi-layer combined range hood filter according to claim 7, characterized in that: The second outer filter (2) is provided with a toggle block (27) for driving the second outer filter (2) to compress the elastic pin into the mounting hole (26) so as to separate the second clamping block (44) from the second positioning hole (42).

9. The multi-layer combined range hood filter according to claim 7, characterized in that: The first positioning hole (41) and the second positioning hole (42) are provided in plurality and are spaced apart along the length direction of the first outer filter (1); the first clamping block (43) and the second clamping block (44) are provided in plurality and are spaced apart along the length direction of the second outer filter (2); the mounting holes (26) are provided in plurality and are spaced apart along the length direction of the second outer filter (2); and the spring-pressing members (45) are provided in plurality in a one-to-one correspondence with the mounting holes (26).

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