Range hood with strong suction and exhaust power

By introducing adjustment components, slip adjustment frame and partition rod into the range hood, and adjusting the filter mesh aperture in real time, the problem that existing range hoods cannot adapt to different cooking conditions is solved, and the fume filtration effect and scope of application are improved.

CN119468275APending Publication Date: 2025-02-18SHAOXING PULING ELECTRIC APPLIANCE CO LTD
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Patent Information

Application Number
CN202411729707.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-11-29
Publication Date
2025-02-18

AI Technical Summary

Technical Problem

The existing range hood cannot adjust the filter oil mesh aperture in real time according to different cooking conditions, resulting in poor filtration effect and cannot meet the needs of different cooking scenarios.

Method used

A strong suction and discharge power range hood is designed, using adjustment components including adjustment frames, partition rods and positioning members. By sliding the position of the adjustment frames and partition rods, the aperture of the filter mesh is adjusted in real time to adapt to the cooking of light and heavy fume. Condition.

Benefits of technology

It realizes dynamic adjustment of the filter mesh aperture according to the cooking conditions, improves the effect and scope of application of the fume filtration, and enhances the user's operating flexibility for the range hood.

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Abstract

The invention relates to a strong suction and exhaust power range hood which comprises a range hood body, a filter screen and an adjusting assembly, the filter screen is arranged on the range hood body, a plurality of through holes are evenly distributed in the filter screen, the adjusting assembly comprises an adjusting frame, a plurality of partition rods and a positioning piece, the adjusting frame is slidably connected to the filter screen, and the partition rods are arranged on the adjusting frame. The length of the separation rods is perpendicular to the sliding direction of the adjusting frame, and the separation rods are evenly distributed on the adjusting frame. When the range hood is in a cooking condition with light oil smoke amount, the through hole is divided into two filtering holes through which the oil smoke passes by by the separation rod, and when the range hood is in a cooking condition with heavy oil smoke amount, the separation rod and the through hole are in a staggered distribution state, and the oil smoke directly enters the range hood body through the through hole. And the positioning piece is used for keeping the separation rod in a state required by one cooking condition. The oil filter screen has the effect that a user can adjust the aperture of the oil filter screen in time according to own cooking requirements.
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Description

Technical Field

[0001] The present application relates to the field of range hoods, and in particular to a range hood with strong suction and exhaust power. Background Art

[0002] With the development of society and the improvement of living standards, various electrical appliances are widely used in the kitchens of every family, bringing great convenience to people's lives and significantly improving people's quality of life. As an indispensable electrical equipment in the kitchen, the range hood has the main function of sucking away the fumes generated during cooking, keeping the kitchen air fresh, and significantly reducing the impact of fumes on the health of users.

[0003] Current range hoods have strong suction and exhaust power, and the suction power of the range hood can be adjusted in time according to different cooking scenes. The mesh size of the oil filter of the range hood will affect the filtering effect of the oil fumes. When the mesh size of the through holes of the oil filter is small, the through holes are easy to be blocked, but the filtering effect is better and it is more suitable for filtering cooking with light oil fumes; when the mesh size of the oil filter is large, the oil fume filtering effect is not good, but the through holes are not easy to be blocked, and it is suitable for cooking with heavy oil fumes. Users cannot adjust the aperture of the oil filter according to the cooking situation in real time. Summary of the invention

[0004] In order to allow users to adjust the aperture of the oil filter in time according to their own cooking needs, the present application provides a powerful suction and exhaust power range hood.

[0005] The present application provides a powerful suction and exhaust power range hood, which adopts the following technical solution: A powerful suction and exhaust range hood comprises a range hood body, a filter and an adjustment component, wherein the filter is arranged on the range hood body, the filter is evenly distributed with a plurality of through holes, the adjustment component comprises an adjustment frame, a plurality of dividing rods and a positioning member, the adjustment frame is slidably connected to the filter, the length of the dividing rod is perpendicular to the sliding direction of the adjusting frame, and the dividing rods are evenly distributed on the adjusting frame; when the cooking is in a light amount of oil smoke, the dividing rod divides the through hole into two filter holes for the oil smoke to pass through, and when the cooking is in a heavy amount of oil smoke, the dividing rod and the through hole are in a staggered distribution state, and the oil smoke directly enters the range hood body through the through hole, and the positioning member is used to keep the dividing rod in a state required for one of the cooking conditions.

[0006] By adopting the above technical scheme, the user can adjust the oil fume filtering effect of the filter through the adjustment component during the use of the range hood. When the cooking amount of oil fume is small, the user can drive the sliding frame to move so that the dividing rod blocks the through hole, so that the through hole is divided into two filter holes. The number of filter holes is doubled compared with the through hole, and the cross-sectional area of ​​the filter hole is smaller than the cross-sectional area of ​​the through hole. The oil fume filtration is more delicate, and the oil fume separation effect is greatly improved; when the cooking amount of oil fume is heavy, the user can drive the sliding block to move to the situation where the dividing rod and the through hole are staggered, so that the through hole is not blocked, and the oil fume directly enters the range hood body through the through hole, which greatly increases the rate at which the oil fume enters the range hood and reduces the situation where the oil fume remains in the kitchen. The adjustment component enables the user to adjust the size of the filter aperture according to their own needs, thereby improving the applicability of the filter to different cooking situations.

[0007] Optionally, the positioning member includes a positioning bead and a positioning spring, the positioning bead is slidably connected to the side of the adjusting frame facing the filter net along the thickness direction of the adjusting frame, and two positioning grooves are provided on the side of the filter net facing the adjusting frame, the two positioning grooves are suitable for different cooking situations, and the positioning spring is used to keep the positioning bead located in the positioning groove.

[0008] By adopting the above technical solution, when the user needs to adjust the position of the adjustment frame, the staff can directly push the adjustment frame, and the positioning bead overcomes the elastic force of the positioning spring and moves in the direction away from the filter screen until the positioning bead corresponds to the positioning groove. The positioning bead enters the positioning groove under the action of the positioning spring to complete the position adjustment of the adjustment frame. The positioning piece has a simple structure and is easy to operate.

[0009] Optionally, the positioning member also includes a positioning sleeve, which is threadedly connected to the side of the adjustment frame facing the filter screen, and the positioning sleeve is provided with a receiving groove along the thickness direction of the adjustment frame, the positioning bead and the spring are both located in the receiving groove, and the positioning sleeve is provided with a mating groove for facilitating screwing by a screwdriver.

[0010] By adopting the above technical solution, after long-term use, the adjustment frame will also be contaminated with oil smoke, and the oil smoke will cause the positioning beads to slide poorly and be unable to be connected to the positioning groove; the user needs to replace the positioning parts in time, first remove the adjustment frame from the filter net, then use a screwdriver to connect it to the matching groove, remove the positioning sleeve from the adjustment frame, and replace it with a new positioning part. The detachable positioning part increases the service life of the adjustment component.

[0011] Optionally, a disassembly assembly for disassembling and assembling the filter is further provided on the range hood body, the disassembly assembly comprising a rotating bar, a locking piece and a sealing frame, the rotating bar is rotatably connected to the range hood body along the width direction of the range hood body, the rotating bar is provided with a plug-in groove for plugging one end of the filter, the sealing frame is provided on the range hood body, and the locking piece is used to keep the filter against the sealing frame.

[0012] By adopting the above technical solution, the filter needs to be cleaned when the range hood is used for a long time. When the filter is cleaned, the user first aligns one end of the filter with the plug-in slot of the rotating bar, and then holds the filter to drive the rotating bar to rotate, so that the filter abuts against the sealing frame, reducing the passage of oil smoke between the filter and the range hood body. Finally, the filter is kept abutting against the sealing frame by the locking piece. The disassembly assembly structure is simple and easy for users to operate.

[0013] Optionally, the rotating bar is provided with a guiding slope for guiding the filter to be inserted into the insertion groove.

[0014] By adopting the above technical solution, since the range hood body is relatively high during installation, people generally need to tilt their heads upward to install it, which makes it difficult to plug the filter into the plug-in slot. By guiding the inclined surface, the fault tolerance rate during filter installation is improved, making it easier for users to perform installation operations alone.

[0015] Optionally, the locking member includes a locking rod, a sliding block, a connecting rod, a matching rod and a locking spring, the locking rod being slidably connected to the filter net along the thickness direction of the filter net, a penetration hole for the locking rod to pass through is provided on the range hood body, the sliding block is slidably connected to the locking rod along the radial direction of the locking rod, the sliding block passes through the penetration hole and abuts against the range hood body, the matching rod is slidably connected to the locking rod along the length direction of the locking rod, one end of the connecting rod is rotatably connected to the matching rod, and the other end of the connecting rod is rotatably connected to the sliding block, and the locking spring is used to keep the sliding block away from the axial direction of the locking rod.

[0016] By adopting the above technical solution, when the filter needs to be kept in contact with the sealing frame, the user first contacts the filter against the sealing frame, and then slides the locking rod. One end of the locking rod is inserted into the penetration hole of the range hood body, and the locking rod drives the sliding block to enter the penetration hole of the range hood body until the sliding block passes through the penetration hole. At this time, the locking spring drives the matching rod to slide, the matching rod drives the connecting rod to rotate, the connecting rod drives the sliding block to move, and the sliding block moves in the axial direction away from the locking rod. The sliding block restricts the locking rod from detaching from the range hood body.

[0017] Optionally, the locking member further includes a handle and a drive disk, wherein the handle is disposed on one end of the locking rod, the drive disk is located between the handle and the filter screen, and the drive disk is disposed on the matching rod.

[0018] By adopting the above technical solution, when installing the filter through the locking piece, the user holds the handle to push the locking rod to move, so that the sliding block passes through the hole; when the user needs to remove the filter from the range hood body, the user holds the driving disk while holding the handle, so that the driving disk is close to the handle, and the driving disk drives the matching rod to overcome the elastic force of the locking spring and move, and the matching rod drives the connecting rod to rotate, and the connecting rod drives the sliding block to move in the direction close to the axis of the locking rod, and then the user can disengage the locking rod from the hole of the range hood body to complete the disassembly; the handle and the driving disk are more in line with the user's actual operation method during use, and are ergonomically designed.

[0019] Optionally, an annular groove is formed on the outer side wall of the locking rod, and the diameter of the through hole is larger than the diameter of the annular groove.

[0020] By adopting the above technical solution, the diameter of the penetration hole is larger than the diameter of the ring groove, so that the locking rod cannot be separated from the filter screen. When the user pulls the locking rod out of the penetration hole, there is no need to consider the amount of force. The structure is more reasonable and easy for users to operate.

[0021] Optionally, a guiding inclined surface for entering the through hole is provided at one end of the locking rod facing the range hood body.

[0022] By adopting the above technical solution, since one end of the filter is inserted into the plug-in slot when the filter is installed, the plug-in slot only has a limiting function and has no actual fixing effect. Therefore, when the filter drives the rotating bar to rotate, the filter is easy to separate from the bottom of the plug-in slot. The guiding inclined surface of the locking rod can provide an error for the locking rod to enter the through-hole. When the locking rod is plugged and positioned with the through-hole, one end of the filter remains in contact with the bottom of the plug-in slot.

[0023] Optionally, the adjustment frame is provided with a handle for easy holding by hand.

[0024] By adopting the above technical solution, the gripping handle makes it convenient for the user to adjust the position of the adjustment frame.

[0025] In summary, the present application includes at least one of the following beneficial technical effects: 1. The adjustment component can be used to separate the through holes on the filter, so that the filter can be used in different cooking situations; 2. The positioning member is used to position the partition rod, so that the partition rod is in a position required for one of the cooking conditions; 3. The disassembly component is used to remove the filter from the range hood body so that the user can clean it in time. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a range hood with strong suction and exhaust power.

[0027] Figure 2 yes Figure 1 The exploded view of the middle filter and adjustment assembly is used to show the internal structure of the range hood body.

[0028] Figure 3 This is the matching relationship between the 2 filters and the disassembly components.

[0029] Figure 4 yes Figure 2 A cross-sectional view of the middle filter and adjustment assembly, used to illustrate the structure of the locking piece.

[0030] Figure 5 It is a schematic diagram of the state in which the partition rod and the filter screen through hole are staggered.

[0031] Figure 6 This is an exploded view of the positioning parts.

[0032] 1. range hood body; 11. mounting cavity; 12. mounting opening; 13. fan; 14. through hole; 2. filter; 21. through hole; 22. positioning groove; 3. adjustment component; 31. adjustment frame; 32. partition rod; 33. positioning piece; 331. positioning bead; 332. positioning spring; 333. positioning sleeve; 334. matching groove; 335. accommodating groove; 34. sliding frame; 35. gripping handle; 4. disassembly component; 41. rotating bar; 411. plug-in groove; 412. guiding slope; 42. locking piece; 421. locking rod; 422. sliding block; 423. connecting rod; 424. matching rod; 425. locking spring; 426. gripping handle; 427. driving disk; 428. ring groove; 429. guiding slope; 43. sealing frame; 44. placement cavity; 5. panel. DETAILED DESCRIPTION

[0033] The following is combined with Figure 1-6 This application is described in further detail.

[0034] The present application discloses a powerful suction and exhaust range hood. Figure 1 and Figure 2A powerful suction and exhaust power range hood comprises a range hood body 1, a filter 2, an adjustment component 3, a disassembly component 4 and a panel 5. An installation cavity 11 is provided in the range hood body 1, and an installation port 12 is provided in the range hood body 1. The installation port 12 is communicated with the installation cavity 11. A fan 13 is fixedly arranged in the installation cavity 11. The disassembly component 4 is arranged on the range hood body 1, and the disassembly component 4 is used to install the filter 2 on the range hood body 1. The adjustment component 3 is arranged on the filter 2, and the adjustment component 3 is used to change the rate at which oil smoke passes through the filter 2. The panel 5 is rotatably connected to the range hood body 1, and the panel 5 is used to cover the filter 2 when the range hood body 1 is not working.

[0035] Reference Figure 2 and Figure 3 The disassembly assembly 4 includes a rotating bar 41, two locking pieces 42 and a sealing frame 43. The length direction of the rotating bar 41 is parallel to the width direction of the range hood body 1. The rotating bar 41 is located between the panel 5 and the range hood body 1. The rotating bar 41 is rotatably connected to the range hood body 1. A plug-in slot 411 is provided on the rotating bar 41. The length direction of the plug-in slot 411 is parallel to the length direction of the rotating bar 41. A guiding inclined surface 412 is provided between one end of the plug-in slot 411 along the length direction of the plug-in slot 411 and the side wall of the rotating bar 41. The plug-in slot 411 is used to accommodate one end of the filter 2. The sealing frame 43 is located between the filter 2 of the range hood body 1. The sealing frame 43 is fixedly arranged on the range hood body 1. The sealing frame 43 is located outside the mounting opening 12.

[0036] Reference Figure 2 and Figure 4 , the locking piece 42 is used to keep the filter 2 against the sealing frame 43 when the filter 2 is installed to the range hood body 1. The two locking pieces 42 are distributed along the length direction of the filter 2. The locking piece 42 includes a locking rod 421, four sliding blocks 422, four connecting rods 423, a matching rod 424, a locking spring 425, a handle 426 and a driving disk 427. The length direction of the locking rod 421 is parallel to the thickness direction of the filter 2. The locking rod 421 is provided with an annular groove 428. The locking rod 421 is slidably connected to the filter 2 along the length direction of the locking rod 421 through the annular groove 428. A guiding inclined surface 429 is provided between one end of the locking rod 421 facing the range hood body 1 and the side wall of the locking rod 421. Two through holes 14 are provided on the range hood body 1. The two through holes 14 correspond to the two locking pieces 42. The diameter of the through hole 14 is larger than the diameter at the annular groove 428. The through hole 14 is for the locking rod 421 to pass through.

[0037] Reference Figure 2 and Figure 4, a placement cavity 44 is formed in the locking rod 421. The mating rod 424 is coaxially arranged with the locking rod 421. The mating rod 424 is located in the placement cavity 44 and is slidably connected to the locking rod 421. The four sliding blocks 422 are evenly distributed circumferentially along the axis of the locking rod 421. The sliding blocks 422 are slidably connected to the locking rod 421 in the radial direction of the locking rod 421. The sliding blocks 422 penetrate through the guiding inclined surface 429 of the locking rod 421. The four connecting rods 423 correspond to the four sliding blocks 422 one by one. The connecting rods 423 are located in the placement cavity 44. One end of the connecting rod 423 is rotatably connected to the mating rod 424, and the other end of the connecting rod 423 is rotatably connected to the sliding block 422. The locking spring 425 is located in the placement cavity 44 and is sleeved on the mating rod 424. One end of the locking spring 425 is fixedly arranged on the mating rod 424, and the other end of the locking spring 425 is fixedly arranged on the inner side wall of the placement cavity 44. The grip 426 is fixedly arranged on the side of the locking rod 421 away from the range hood body 1. The driving disk 427 is coaxially arranged with the locking rod 421. The driving disk 427 is located between the grip 426 and the filter net 2 and is slidably connected to the locking rod 421 along the length direction of the locking rod 421. The driving disk 427 is fixedly arranged on the mating rod 424.

[0038] Referring to Figure 2 and Figure 5 , a plurality of through holes 21 are formed in the filter net 2. The plurality of through holes 21 are staggered and evenly distributed on the filter net 2. The adjusting assembly 3 includes an adjusting frame 31, a plurality of partition rods 32, a positioning member 33 and a sliding frame 34. The sliding frame 34 is in a U shape and is fixedly arranged on the side wall of the filter net 2 facing away from the range hood body 1. The adjusting frame 31 is slidably connected to the sliding frame 34 along the width direction of the filter net 2. The plurality of partition rods 32 are evenly distributed along the width direction of the adjusting frame 31. The length direction of the partition rods 32 is parallel to the length direction of the adjusting frame 31. Both ends of the partition rods 32 are fixedly arranged on the inner side wall of the adjusting frame 31. The partition rods 32 are in a zigzag shape. A holding handle 35 is fixedly arranged on the adjusting frame 31, and the holding handle 35 facilitates the user to push the adjusting frame 31 to move.

[0039] Referring to Figure 5 and Figure 6The positioning member 33 is used to stagger the partition rod 32 and the through hole 21 or to divide the partition rod 32 and the through hole 21 into two filter holes for oil smoke to pass through. The positioning member 33 includes a positioning bead 331, a positioning spring 332 and a positioning sleeve 333. The length direction of the positioning sleeve 333 is parallel to the thickness direction of the adjustment frame 31. The positioning sleeve 333 is threadedly connected to the side wall of the adjustment frame 31 facing the filter screen 2. A matching groove 334 is provided at one end of the positioning sleeve 333 facing the filter screen 2. The matching groove 334 facilitates the user to remove the positioning sleeve 333 from the adjustment frame 31 using a screwdriver. 3 is provided with a receiving groove 335, the positioning bead 331 and the positioning spring 332 are both located in the receiving groove 335, the positioning bead 331 is slidably connected in the receiving groove 335 along the length direction of the positioning sleeve 333, the length of the positioning spring 332 is parallel to the sliding direction of the positioning bead 331, one end of the positioning spring 332 is fixedly arranged on the positioning bead 331, and the other end of the positioning spring 332 is fixedly arranged on the inner bottom wall of the receiving groove 335, the filter screen 2 is provided with two positioning grooves 22, the two positioning grooves 22 are distributed along the width direction of the filter screen 2, and the positioning grooves 22 are used to clamp the positioning bead 331.

[0040] The implementation principle of a powerful suction and exhaust power range hood in the embodiment of the present application is as follows: the user can adjust the position of the adjustment frame 31 according to the cooking fume situation, and drive the adjustment frame 31 to move by holding the handle 35, and the adjustment frame 31 drives the dividing rod 32 to move. When the cooking is in a situation where the oil smoke is heavy, the dividing rod 32 can be staggered with the through hole 21, and the oil smoke can directly enter the range hood body 1 through the through hole 21, reducing the retention time of the oil smoke in the kitchen. When the oil smoke during cooking is less, the dividing rod 32 can divide the through hole 21 into two filtering holes for the oil smoke to enter the range hood body 1, thereby improving the oil fume filtration effect.

[0041] When the range hood is used for a long time, a lot of oil will be left on the filter 2 and the adjustment assembly 3, which need to be disassembled for cleaning. The user holds the handle 426 and the drive disk 427 together. When the user pulls the handle 426 outward, the user holds the drive disk 427 tightly, and the drive disk 427 moves toward the handle 426. The drive disk 427 drives the matching rod 424 to overcome the elastic force of the locking spring 425 and move. The matching rod 424 drives the connecting rod 423 to rotate, and the connecting rod 423 drives the sliding block 422 to move. , the sliding block 422 enters the locking rod 421, and the user can smoothly pull the locking rod 421 out of the penetration hole 14. At this time, the filter 2 can be separated from the rotating bar 41, and the filter 2 can be cleaned. When the locking component on the filter 2 also needs to be cleaned or replaced, the adjustment frame 31 can be slid out of the sliding frame 34 so that the adjustment frame 31 can be cleaned, and the positioning sleeve 333 on the adjustment frame 31 can be unscrewed from the adjustment frame 31 by a screwdriver so that the positioning member 33 can be replaced in time.

[0042] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A powerful suction and exhaust range hood, characterized in that: The range hood comprises a range hood body (1), a filter screen (2) and an adjustment assembly (3), wherein the filter screen (2) is arranged on the range hood body (1), the filter screen (2) is evenly distributed with a plurality of through holes (21), the adjustment assembly (3) comprises an adjustment frame (31), a plurality of partition rods (32) and a positioning member (33), the adjustment frame (31) is slidably connected to the filter screen (2), the length of the partition rods (32) is perpendicular to the sliding direction of the adjustment frame (31), and the partition rods (32) are arranged to be perpendicular to the sliding direction of the adjustment frame (31). (32) are evenly distributed on the adjustment frame (31); when the cooking condition is a light amount of oil smoke, the partition rod (32) divides the through hole (21) into two filter holes for oil smoke to pass through; when the cooking condition is a heavy amount of oil smoke, the partition rod (32) and the through hole (21) are in a staggered distribution state, and the oil smoke directly enters the range hood body (1) through the through hole (21); the positioning member (33) is used to keep the partition rod (32) in a state required for one of the cooking conditions.

2. The powerful suction and exhaust power range hood according to claim 1, characterized in that: The positioning member (33) comprises a positioning bead (331) and a positioning spring (332); the positioning bead (331) is slidably connected to a side of the adjusting frame (31) facing the filter screen (2) along the thickness direction of the adjusting frame (31); two positioning grooves (22) are provided on a side of the filter screen (2) facing the adjusting frame (31); the two positioning grooves (22) are suitable for different cooking conditions; the positioning spring (332) is used to keep the positioning bead (331) located in the positioning groove (22).

3. A powerful suction and exhaust power range hood according to claim 2, characterized in that: The positioning member (33) further comprises a positioning sleeve (333), the positioning sleeve (333) being threadedly connected to a side of the adjusting frame (31) facing the filter screen (2), the positioning sleeve (333) being provided with a receiving groove (335) along the thickness direction of the adjusting frame (31), the positioning bead (331) and the positioning spring (332) being both located in the receiving groove (335), and the positioning sleeve (333) being provided with a matching groove (334) for facilitating screwing with a screwdriver.

4. The powerful suction and exhaust power range hood according to claim 1, characterized in that: The range hood body (1) is also provided with a disassembly assembly (4) for disassembling and assembling the filter (2); the disassembly assembly (4) comprises a rotating bar (41), a locking member (42) and a sealing frame (43); the rotating bar (41) is connected to the range hood body (1) in a rotatable manner along the width direction of the range hood body (1); the rotating bar (41) is provided with a plug-in slot (411) for plugging one end of the filter (2); the sealing frame (43) is provided on the range hood body (1); and the locking member (42) is used to keep the filter (2) in contact with the sealing frame (43).

5. The powerful suction and exhaust power range hood according to claim 4, characterized in that: The rotating bar (41) is provided with a guiding inclined surface (412) for facilitating the insertion of the filter screen (2) into the insertion groove (411).

6. The powerful suction and exhaust power range hood according to claim 4, characterized in that: The locking member (42) comprises a locking rod (421), a sliding block (422), a connecting rod (423), a matching rod (424) and a locking spring (425); the locking rod (421) is slidably connected to the filter screen (2) along the thickness direction of the filter screen (2); a penetration hole (14) for the locking rod (421) to penetrate is provided on the range hood body (1); the sliding block (422) is slidably connected to the locking rod (421) along the radial direction of the locking rod (421); the sliding block (422) is slidably connected to the locking rod (421) along the radial direction of the locking rod (421); The block (422) passes through the through hole (14) and abuts against the range hood body (1); the matching rod (424) is slidably connected to the locking rod (421) along the length direction of the locking rod (421); one end of the connecting rod (423) is rotatably connected to the matching rod (424); the other end of the connecting rod (423) is rotatably connected to the sliding block (422); and the locking spring (425) is used to keep the sliding block (422) away from the axial direction of the locking rod (421).

7. The powerful suction and exhaust power range hood according to claim 6, characterized in that: The locking member (42) further comprises a handle (426) and a drive disk (427); the handle (426) is arranged on one end of the locking rod (421); the drive disk (427) is located between the handle (426) and the filter screen (2); and the drive disk (427) is arranged on the matching rod (424).

8. The powerful suction and exhaust power range hood according to claim 6, characterized in that: An annular groove (428) is formed on the outer side wall of the locking rod (421), and the diameter of the penetration hole (14) is larger than the diameter of the annular groove (428).

9. The powerful suction and exhaust power range hood according to claim 6, characterized in that: One end of the locking rod (421) facing the range hood body (1) is provided with a guiding inclined surface (429) for entering the penetration hole (14).

10. The powerful suction and exhaust power range hood according to claim 1, characterized in that: The adjustment frame (31) is provided with a gripping handle (35) that is convenient for a person to hold.