Low-noise range hood

Abstract

The utility model relates to the technical field of range hoods, in particular to a low-noise range hood which comprises a supporting plate, a pipeline fixedly connected to the top of the supporting plate, a fan frame arranged in the pipeline, sliding plates fixedly connected to the outer walls of the two sides of the fan frame, sliding grooves formed in the inner walls of the two sides of the fan frame, the sliding plates located in the multiple sliding grooves, and shock pads fixedly connected to the inner wall of the fan frame. The inner wall of the fan body is fixedly connected with a motor, the output end of the motor is fixedly connected with a driving shaft, the outer wall of the driving shaft is fixedly connected with a wind wheel, a locking groove is formed in the edge of the bottom of the inner wall of the fan body, the inner wall of the locking groove is movably connected with a locking lead screw, and the outer wall of the locking lead screw is in threaded connection with a moving block. The bottoms of the inner walls of the spring grooves are fixedly connected with two springs, and the tops of the two springs are fixedly connected with a locking block. According to the fan, noise generated by vibration during operation of the fan body is reduced, meanwhile, the fan body is convenient to disassemble and assemble, and the process is simple.

Description

Technical Field

[0001] The utility model relates to the field of range hoods, in particular to a low-noise range hood. Background Art

[0002] A range hood, also known as a smoke extractor, is a kitchen appliance that purifies the kitchen environment. Installed above the kitchen stove, it quickly extracts stovetop waste and harmful cooking fumes, exhausting them outdoors.

[0003] Range hoods mainly rely on motors to drive the fan wheel to discharge oil smoke outdoors. In existing range hoods, the motor is often installed directly inside the pipe. The vibration generated by the motor causes the pipe to vibrate together, which will produce noise and affect the user experience. At the same time, when the entire fan is running, it is often fixed inside the pipe with bolts. Disassembly and assembly require tools, and the process is cumbersome. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a low-noise range hood.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a low-noise range hood, comprising a support plate, the top of the support plate is fixedly connected to a pipe, a fan frame is arranged inside the pipe, the outer walls of both sides of the fan frame are fixedly connected to slide plates, and the number of slide plates is two, the inner walls of both sides of the fan frame are provided with slide grooves, and the number of slide grooves is two, a plurality of slide plates are respectively located inside a plurality of slide grooves, the inner wall of the fan frame is fixedly connected to a shock-absorbing pad, and the number of shock-absorbing pads is multiple, the inner wall of the fan frame is fixedly connected to a rubber pad, the fan body is installed inside the fan frame, the fan The outer wall of the machine body fits together with the outer walls of multiple shock-absorbing pads. The inner wall of the fan body is fixedly connected to the motor, the output end of the motor is fixedly connected to the drive shaft, the outer wall of the drive shaft is fixedly connected to the wind wheel, and a locking groove is provided at the bottom edge of the inner wall of the fan body. The inner wall of the locking groove is movably connected to a locking screw, and the outer wall of the locking screw is threadedly connected to a moving block. A spring groove is provided at the top of the moving block, and a spring is fixedly connected to the bottom of the inner wall of the spring groove. There are two springs, and the tops of the two springs are fixedly connected to locking blocks. The locking screw extends to one end outside the fan body and is fixedly connected to a knob.

[0006] As a further description of the above technical solution:

[0007] An air inlet is provided at the bottom of the fan body, and a connecting groove is provided at the bottom of the fan frame. The connecting groove corresponds to the position of the air inlet.

[0008] As a further description of the above technical solution:

[0009] The inner wall of the pipe is fixedly connected with sound-absorbing cotton, and a U-shaped plate is provided inside the pipe. The outer walls on both sides of the U-shaped plate are fixedly connected with limiting strips, and there are two limiting strips on each side. The inner wall of the U-shaped plate is provided with U-shaped plate sound-absorbing holes, and there are multiple U-shaped plate sound-absorbing holes. The inner walls on both sides of the pipe are provided with limiting grooves, and there are two limiting grooves on each side. The multiple limiting strips are respectively located inside the multiple limiting grooves.

[0010] As a further description of the above technical solution:

[0011] The front of the pipe is connected to a cover plate by multiple bolts, the inner wall of the cover plate is provided with a pressure plate groove, a pressure plate is installed inside the pressure plate groove, and a side of the pressure plate located inside the pressure plate groove is movably connected to a tightening screw, the outer wall of the cover plate is provided with a threaded hole, the threaded hole is connected to the pressure plate groove, and the outer wall of the tightening screw passes through the threaded hole and is fixedly connected to a turning handle at one end.

[0012] As a further description of the above technical solution:

[0013] A hollow groove is provided at the bottom of the pressing plate, and the position of the hollow groove corresponds to the position of the knob.

[0014] As a further description of the above technical solution:

[0015] The outer wall of the compression screw is threadedly connected to the inner wall of the threaded hole. The lower end of the inner wall of the cover plate is provided with a cover plate sound-absorbing hole, and the number of the cover plate sound-absorbing holes is multiple.

[0016] The utility model has the following beneficial effects:

[0017] 1. When installing the fan body, first install the entire fan body into the fan rack. When the fan body enters the fan rack, press the locking block into the spring groove. At this time, the two springs are in a compressed state. After the fan body completely enters the fan rack, the two springs rebound and the locking block moves up and returns to its position. Then turn the knob to drive the locking screw to rotate, so that the moving block approaches the fan body until the locking block in the moving block presses the fan body tightly. The multiple shock-absorbing pads in the fan rack form support for the outer wall of the fan body. At the same time, after the fan body is pressed by the locking block, the side of the fan body located inside the fan rack is close to the rubber pad connected to the inner wall of the fan rack. The rubber pad and the shock-absorbing pad work together to reduce The noise generated by the vibration of the low-pressure fan body during operation is reduced. At the same time, the two slides connected to the outer walls on both sides of the fan frame are inserted into the corresponding slide grooves. At this time, the entire fan body is installed. The fan frame can be taken out according to the same principle, which is convenient for disassembly and assembly of the fan body. In existing range hoods, the motor is often directly installed inside the pipe. The vibration generated by the motor operation causes the pipe to vibrate together, which will generate noise and affect the user experience. At the same time, when the entire fan is running, it is often fixed inside the pipe with bolts. Disassembly and assembly require tools, and the process is cumbersome. The range hood reduces the noise generated by the vibration of the fan body during operation. At the same time, the fan body is easy to disassemble and assemble, and the process is simple.

[0018] 2. Install a U-shaped plate inside the pipe. Multiple U-shaped sound-absorbing holes are opened on the inner wall of the U-shaped plate to absorb the noise generated by the operation of the fan body and reduce the noise again. A pressure plate groove is opened on the inner wall of the cover plate. When the cover plate is connected to the pipe with bolts, turn the handle to drive the tightening screw to rotate, and then move the pressure plate outward from the pressure plate groove, pressing the fan frame inward to make the fan frame more stable. At the same time, multiple cover plate sound-absorbing holes are opened at the lower end of the inner wall of the cover plate. The cover plate sound-absorbing holes correspond to the position of the U-shaped plate and work together with the U-shaped plate to absorb noise. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of a low-noise range hood proposed by the utility model from a first perspective;

[0020] Figure 2 This is a schematic diagram of the pipeline structure of a low-noise range hood proposed in the utility model;

[0021] Figure 3 This is a schematic diagram of the fan frame structure of a low-noise range hood proposed in the utility model;

[0022] Figure 4 This is a schematic diagram of the main structure of the fan of a low-noise range hood proposed by the utility model;

[0023] Figure 5 This is a schematic diagram of the locking block structure of a low-noise range hood proposed by the utility model;

[0024] Figure 6 This is a schematic diagram of the U-shaped plate structure of a low-noise range hood proposed in the utility model;

[0025] Figure 7 This is a schematic diagram of the inner wall structure of a cover plate of a low-noise range hood proposed by the present invention;

[0026] Figure 8 This is a schematic diagram of the pressure plate structure of a low-noise range hood proposed by the utility model.

[0027] Legend:

[0028] 1. Support plate; 2. Pipe; 3. Fan frame; 4. Slide plate; 5. Slide groove; 6. Shock-absorbing pad; 7. Rubber pad; 8. Fan body; 9. Motor; 10. Drive shaft; 11. Wind wheel; 12. Locking groove; 13. Locking screw; 14. Moving block; 15. Spring groove; 16. Spring; 17. Locking block; 18. Knob; 19. Air inlet; 20. Connecting groove; 21. Sound-absorbing cotton; 22. U-shaped plate; 23. Limiting strip; 24. Sound-absorbing hole of U-shaped plate; 25. Limiting groove; 26. Cover plate; 27. Pressure plate groove; 28. Pressure plate; 29. ​​Hollow groove; 30. Threaded hole; 31. Pressure screw; 32. Turning handle; 33. Sound-absorbing hole of cover plate. DETAILED DESCRIPTION

[0029] Reference Figure 1-8 The utility model provides a low-noise range hood: it includes a support plate 1, the top of the support plate 1 is fixedly connected to a pipe 2, a fan frame 3 is arranged inside the pipe 2, the outer walls of both sides of the fan frame 3 are fixedly connected with slide plates 4, and the number of slide plates 4 is two, the inner walls of both sides of the fan frame 3 are provided with slide grooves 5, and the number of slide grooves 5 is two, a plurality of slide plates 4 are respectively located inside the plurality of slide grooves 5, the inner wall of the fan frame 3 is fixedly connected with a shock-absorbing pad 6, and the number of shock-absorbing pads 6 is multiple, the inner wall of the fan frame 3 is fixedly connected with a rubber pad 7, a fan body 8 is installed inside the fan frame 3, and the outer wall of the fan body 8 and the outer wall of the plurality of shock-absorbing pads 6 The motor 9 is fixedly connected to the inner wall of the fan body 8, the output end of the motor 9 is fixedly connected to the drive shaft 10, the outer wall of the drive shaft 10 is fixedly connected to the wind wheel 11, and a locking groove 12 is provided at the bottom edge of the inner wall of the fan body 8. The inner wall of the locking groove 12 is movably connected to the locking screw 13, and the outer wall of the locking screw 13 is threadedly connected to the moving block 14. The top of the moving block 14 is provided with a spring groove 15, and the bottom of the inner wall of the spring groove 15 is fixedly connected to a spring 16, and there are two springs 16. The tops of the two springs 16 are fixedly connected to the locking block 17, and the locking screw 13 extends to one end outside the fan body 8 and is fixedly connected to a knob 18.

[0030] When installing the fan body 8, first install the fan body 8 into the fan frame 3. When the fan body 8 enters the fan frame 3, press the locking block 17 into the spring groove 15. At this time, the two springs 16 are in a compressed state. After the fan body 8 completely enters the fan frame 3, the two springs 16 rebound, and the locking block 17 moves up and returns to its position. Then turn the knob 18 to drive the locking screw 13 to rotate, so that the moving block 14 approaches the fan body 8 until the locking block 17 in the moving block 14 presses the fan body 8 tightly, and the fan frame The multiple shock-absorbing pads 6 in 3 form support for the outer wall of the fan body 8. At the same time, after the fan body 8 is pressed by the locking block 17, the side of the fan body 8 located inside the fan frame 3 is close to the rubber pad 7 connected to the inner wall of the fan frame 3. The rubber pad 7 and the shock-absorbing pad 6 work together to reduce the noise generated by the vibration of the fan body 8 during operation. At the same time, the two slides 4 connected to the outer walls on both sides of the fan frame 3 are inserted into the corresponding slide grooves 5. At this time, the entire fan body 8 is installed. The fan frame 3 can be taken out using the same principle.

[0031] An air inlet 19 is provided at the bottom of the fan body 8 , and a connecting groove 20 is provided at the bottom of the fan frame 3 . The connecting groove 20 corresponds to the position of the air inlet 19 .

[0032] The inner wall of the pipe 2 is fixedly connected with sound-absorbing cotton 21, which can absorb the noise generated when the fan body 8 inside the fan frame 3 is running. A U-shaped plate 22 is provided inside the pipe 2, and the outer walls on both sides of the U-shaped plate 22 are fixedly connected with limiting strips 23, and there are two limiting strips 23. The inner wall of the U-shaped plate 22 is provided with U-shaped plate sound-absorbing holes 24, and there are multiple U-shaped plate sound-absorbing holes 24 to absorb the noise inside the pipe 2. The inner walls on both sides of the pipe 2 are provided with limiting grooves 25, and there are two limiting grooves 25. Multiple limiting strips 23 are respectively located inside the multiple limiting grooves 25, which is convenient for disassembly and cleaning of the U-shaped plate.

[0033] The front of the pipe 2 is connected to a cover plate 26 by multiple bolts. The inner wall of the cover plate 26 is provided with a pressure plate groove 27, and a pressure plate 28 is installed inside the pressure plate groove 27. The pressure plate 28 is located inside the pressure plate groove 27. One side of the pressure plate 28 is movably connected to a tightening screw 31. The outer wall of the cover plate 26 is provided with a threaded hole 30, and the threaded hole 30 is communicated with the pressure plate groove 27. The outer wall of the tightening screw 31 passes through the threaded hole 30 and is fixedly connected to a turning handle 32 at one end. The bottom of the pressure plate 28 is provided with a hollow groove 29, and the position of the hollow groove 29 corresponds to the position of the knob 18. The outer wall of the tightening screw 31 is threadedly connected to the inner wall of the threaded hole 30. The lower end of the inner wall of the cover plate 26 is provided with a cover sound-absorbing hole 33, and there are multiple cover sound-absorbing holes 33.

[0034] A plurality of U-shaped sound-absorbing holes 24 are provided on the inner wall of the U-shaped plate 22, which can absorb the noise generated by the operation of the fan body 8 and further reduce the noise. A pressure plate groove 27 is provided on the inner wall of the cover plate 26. When the cover plate 26 is connected to the pipe 2 by bolts, the turning handle 32 is turned to drive the pressing screw 31 to rotate, thereby causing the pressure plate 28 to move outward from the pressure plate groove 27, pressing the fan frame 3 inward to make the fan frame 3 more stable. At the same time, a plurality of cover plate sound-absorbing holes 33 are provided on the lower end of the inner wall of the cover plate 26. The cover plate sound-absorbing holes 33 correspond to the position of the U-shaped plate 22 and work together with the U-shaped plate 22 to absorb noise.

[0035] Working principle: When installing the fan body 8, first install the entire fan body 8 into the fan frame 3. During the process of the fan body 8 entering the fan frame 3, the locking block 17 is pressed into the spring groove 15. At this time, the two springs 16 are in a compressed state. After the fan body 8 completely enters the fan frame 3, the two springs 16 rebound, and the locking block 17 moves up and returns to its position. Then, turn the knob 18 to drive the locking screw 13 to rotate, so that the moving block 14 approaches the fan body 8 until the locking block 17 in the moving block 14 presses the fan body 8. The multiple shock-absorbing pads 6 in the fan frame 3 support the outer wall of the fan body 8. At the same time, after the fan body 8 is pressed by the locking block 17, the side of the fan body 8 located inside the fan frame 3 is close to the rubber pad 7 connected to the inner wall of the fan frame 3. The rubber pad 7 and the shock-absorbing pad 6 work together to lower the fan body 8. The noise generated by the vibration during operation is reduced. At the same time, the two slides 4 connected to the outer walls on both sides of the fan frame 3 are inserted into the corresponding slide grooves 5. At this time, the entire fan body 8 is installed. The fan frame 3 can be taken out according to the same principle. A plurality of U-shaped plate sound-absorbing holes 24 are opened on the inner wall of the U-shaped plate 22, which can absorb the noise generated by the operation of the fan body 8 and reduce the noise again. A pressure plate groove 27 is opened on the inner wall of the cover plate 26. When the cover plate 26 is connected to the pipe 2 by bolts, the handle 32 is turned to drive the tightening screw 31 to rotate, thereby causing the pressure plate 28 to move outward from the pressure plate groove 27, pressing the fan frame 3 inward, making the fan frame 3 more stable. At the same time, a plurality of cover plate sound-absorbing holes 33 are opened at the lower end of the inner wall of the cover plate 26. The cover plate sound-absorbing holes 33 correspond to the position of the U-shaped plate 22, and work together with the U-shaped plate 22 to absorb noise.

[0036] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A low-noise range hood, comprising a support plate (1), characterized in that: The top of the support plate (1) is fixedly connected to a pipe (2), a fan frame (3) is arranged inside the pipe (2), both outer walls of the fan frame (3) are fixedly connected to slide plates (4), and the number of the slide plates (4) is two, both inner walls of the fan frame (3) are provided with slide grooves (5), and the number of the slide grooves (5) is two, and the plurality of slide plates (4) are respectively located inside the plurality of slide grooves (5), the inner wall of the fan frame (3) is fixedly connected to a shock-absorbing pad (6), and the number of the shock-absorbing pads (6) is multiple, the inner wall of the fan frame (3) is fixedly connected to a rubber pad (7), a fan body (8) is installed inside the fan frame (3), the outer wall of the fan body (8) is in contact with the outer walls of the plurality of shock-absorbing pads (6), and the inner wall of the fan body (8) is A motor (9) is fixedly connected to the wall, an output end of the motor (9) is fixedly connected to a drive shaft (10), an outer wall of the drive shaft (10) is fixedly connected to a wind wheel (11), a locking groove (12) is provided at the bottom edge of the inner wall of the fan body (8), a locking screw (13) is movably connected to the inner wall of the locking groove (12), a moving block (14) is threadedly connected to the outer wall of the locking screw (13), a spring groove (15) is provided at the top of the moving block (14), a spring (16) is fixedly connected to the bottom of the inner wall of the spring groove (15), and there are two springs (16), the tops of the two springs (16) are fixedly connected to a locking block (17), and one end of the locking screw (13) extending to the outside of the fan body (8) is fixedly connected to a knob (18).

2. A low-noise range hood according to claim 1, characterized in that: An air inlet (19) is provided at the bottom of the fan body (8), and a connecting groove (20) is provided at the bottom of the fan frame (3), wherein the connecting groove (20) corresponds to the position of the air inlet (19).

3. The low-noise range hood according to claim 1, characterized in that: The inner wall of the pipe (2) is fixedly connected with a sound-absorbing cotton (21), the interior of the pipe (2) is provided with a U-shaped plate (22), the outer walls on both sides of the U-shaped plate (22) are fixedly connected with limit strips (23), and the number of limit strips (23) is two, the inner wall of the U-shaped plate (22) is provided with a U-shaped plate sound-absorbing hole (24), and the number of U-shaped plate sound-absorbing holes (24) is multiple, the inner walls on both sides of the pipe (2) are provided with limit grooves (25), and the number of limit grooves (25) is two, and the multiple limit strips (23) are respectively located inside the multiple limit grooves (25).

4. The low-noise range hood according to claim 1, characterized in that: The front side of the pipe (2) is connected to a cover plate (26) via a plurality of bolts; the inner wall of the cover plate (26) is provided with a pressure plate groove (27); a pressure plate (28) is installed inside the pressure plate groove (27); a surface of the pressure plate (28) located inside the pressure plate groove (27) is movably connected to a compression screw rod (31); the outer wall of the cover plate (26) is provided with a threaded hole (30); the threaded hole (30) is connected to the pressure plate groove (27); and the outer wall of the compression screw rod (31) passes through the threaded hole (30) and is fixedly connected to a turning handle (32) at one end thereof.

5. The low-noise range hood according to claim 4, characterized in that: A hollow groove (29) is provided at the bottom of the pressing plate (28), and the position of the hollow groove (29) corresponds to the position of the knob (18).

6. The low-noise range hood according to claim 4, characterized in that: The outer wall of the compression screw rod (31) is threadedly connected to the inner wall of the threaded hole (30); a cover plate sound absorbing hole (33) is provided at the lower end of the inner wall of the cover plate (26); and the cover plate sound absorbing holes (33) are provided in a plurality.

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