Multi-physics-field coupled wide-frequency-domain impedance silencing device

Abstract

The invention discloses a multi-physics-field coupled wide-frequency-domain impedance silencing device, and belongs to the field of range hoods. Comprising a wall-mounted shell, an exhaust pipe is integrally formed at the top of the wall-mounted shell, an exhaust fan is fixedly mounted in the exhaust pipe, and a control panel is fixedly mounted on the front surface of the wall-mounted shell; a filter screen plate is arranged on the inner side of the wall-mounted shell, fixing blocks are symmetrically and fixedly connected to the two sides of the rear surface of the filter screen plate, a sliding column is jointly and fixedly connected between every two adjacent fixing blocks, and a sliding sleeve is slidably connected to the outer side of each sliding column; the wall-mounted oil fume device is composed of the wall-mounted shell, the exhaust pipe, the exhaust fan, the control panel and the filter screen plate, the exhaust pipe and the exhaust fan are used in cooperation to achieve the oil fume exhaust effect, the control panel is used for controlling the device to be started, and the filter screen plate is used for preliminarily filtering the extracted oil fume.

Description

Technical Field

[0001] The present invention relates to the field of range hoods, and in particular to a wide-frequency impedance silencing device coupled with multiple physical fields. Background Art

[0002] Range hoods can be divided into two categories based on their appearance: European and Chinese styles. European range hoods are mainly wall-mounted, and there are also some high-end island-style products; Chinese range hoods are mainly wall-mounted, with deep hoods and shallow hoods. Based on the number of motors and impellers, they can be divided into: dual-machine and single-machine (i.e., dual-tube and single-tube). Based on the oil storage and drainage method, they can be divided into dual-oil circuits and triple-oil circuits (air chamber drainage, protective cover drainage, and wind-transported drainage). Based on the smoke collection chamber structure, they can be divided into single-layer (three oil circuits), double-layer inner-layer (dual oil circuits), multi-layer collection network (multi-oil circuits), etc. Based on the functional structure, they can be divided into multimedia range hoods, embedded range hoods, wall-suction range hoods, side-suction range hoods, solid wood range hoods, etc.

[0003] There are various problems in the use of existing range hoods. For example, the initial air intake filter plate of the existing range hood is not easy to disassemble and open, which makes cleaning inconvenient. The mesh is easily clogged by oil stains after long-term use, thereby affecting the air intake effect. In addition, the existing range hood usually requires a strip-shaped receiving box to collect oil stains when in use. However, the receiving box in the prior art is inconvenient to disassemble and install, and after the existing receiving box is disassembled, the bottom of the range hood is in an open state. The oil stains remaining inside the shell are easy to drip directly from the bottom onto the stove, and the stove needs to be cleaned. Improvements are needed. For this reason, we propose a wide-frequency domain impedance silencer with multi-physical field coupling. Summary of the Invention

[0004] Purpose of the invention: The purpose of the present invention is to provide a filter screen that is easy to disassemble; another purpose of the present invention is to provide an oil receiving box that is easy to disassemble and can prevent the problem of oil dripping.

[0005] Technical solution: A wide-band impedance silencing device coupled with multiple physical fields, comprising a wall-mounted shell, an exhaust pipe integrally formed on the top of the wall-mounted shell, an exhaust fan fixedly installed inside the exhaust pipe, and a control panel fixedly installed on the front surface of the wall-mounted shell; a filter screen is provided on the inner side of the wall-mounted shell, and fixed blocks are symmetrically fixedly connected to both sides of the rear surface of the filter screen, and a sliding column is fixedly connected between two adjacent fixed blocks, the outer side of the sliding column is slidably connected to a sliding sleeve, and the inner side of the sliding sleeve is rotatably connected to a shaft column through a rotating shaft, and the opposite ends of the two shaft columns opposite to each other on the left and right are fixedly connected to mounting plates, and the opposite sides of the two mounting plates are respectively disassembled and mounted on the inner sides of the wall-mounted shell by bolts; an oil drain chamber is integrally formed on the bottom of the wall-mounted shell; a receiving box is provided at the bottom of the oil drain chamber.

[0006] Furthermore, inclined bayonet holes are integrally formed on the upper sides of both sides of the filter screen plate, and clamping cylinders are fixedly connected to the inner sides of the two inclined bayonet holes on both sides of the interior of the wall-mounted shell.

[0007] Furthermore, the upper surface of the fixed block and the lower surface of the sliding sleeve located below the rear surface of the filter plate, and the outer side wall of the shaft column are commonly fixedly connected with a spring 1.

[0008] Furthermore, an inclined guide plate is integrally formed on the bottom of the rear surface of the filter screen plate, and one end of the inclined guide plate away from the filter screen plate extends to the inner side of the oil drain cavity.

[0009] Furthermore, two inclined baffles are integrally formed at the bottom of the oil drain chamber, a triangular sealing plate is provided on the inner side of the oil drain chamber above the inclined baffle, a fixed plate is fixedly connected to the inner side of the oil drain chamber and below the triangular sealing plate, a guide column is fixedly connected to the lower surface of the triangular sealing plate, and the bottom end of the guide column extends to the bottom of the fixed plate.

[0010] Furthermore, a plurality of springs 2 are fixedly connected to the opposite sides of the triangular sealing plate and the fixing plate and are located on the outsides of the plurality of guide pillars.

[0011] Furthermore, vertical grooves are provided on the lower sides of the inner side of the wall-mounted shell, and the two sides of the triangular sealing plate are located on the inner sides of the two vertical grooves and are fixedly connected with lifting columns, and the lifting columns are slidably connected to the vertical grooves. The opposite ends of the two lifting columns are located on both sides of the wall-mounted shell and are fixedly connected with sealing strips, and a pulling plate is provided on the side of the sealing strip away from the wall-mounted shell, and the side of the pulling plate close to the sealing strip is fixedly connected with a limit stop column and a positioning column from top to bottom in sequence, and the side of the limit stop column away from the pulling plate passes through the sealing strip and extends to the inner side of the vertical groove, and the outer side wall of the limit stop column is in contact with the lower inner side of the vertical groove.

[0012] Furthermore, positioning holes are provided on both sides of the receiving box, and the side of the positioning post away from the pulling plate passes through the sealing strip and is inserted into the inner side of the positioning hole.

[0013] Furthermore, springs three are fixedly connected to the opposite sides of the pulling plate and the sealing strip, and to the outer side walls of the positioning column and the limiting column.

[0014] Beneficial effects: The device is composed of a wall-mounted oil fume device through a wall-mounted shell, an exhaust pipe, an exhaust fan, a control panel and a filter plate. The exhaust pipe and the exhaust fan are used in conjunction to achieve the effect of extracting and discharging oil fume. The control panel is used to control the start of the device, and the filter plate is used to preliminarily filter the extracted oil fume.

[0015] The bottom of the filter screen is assembled with the wall-mounted housing through the mounting plate by bolts, and the clamping cylinder is clamped in the inclined bayonet. Since the filter screen can slide along the outer wall of the sliding column through the sliding sleeve, the spring has a tendency to pull the filter screen downward obliquely, so that the clamping cylinder can be stably clamped in the inclined bayonet, ensuring the stability of the filter screen installation.

[0016] By holding the front surface of the filter screen with your hand and dragging it upward, the filter screen is subjected to the force of being dragged upward, so that the sliding sleeve slides upward along the outer wall of the sliding column, thereby facilitating the disengagement of the clamping cylinder from the inner part of the inclined bayonet. Then, the sliding sleeve can be used to rotate along the outer wall of the shaft column, and the filter screen can be opened by rotating the sliding sleeve along the outer wall of the shaft column, thereby facilitating the cleaning of the rear surface of the filter screen, that is, the inner part of the wall-mounted shell, and avoiding the problem that the mesh of the filter screen is easily clogged after long-term use, thereby affecting the air intake effect. At the same time, after the filter screen is opened, the inner part of the wall-mounted shell can be tilted;

[0017] The handheld pulling plate is pulled toward the side away from the wall-mounted shell to disengage the positioning column from the positioning hole. At this time, the receiving box is removed, which makes it convenient to pour out the oil stored inside for cleaning. After removing the receiving box, since the positioning column is not limited, the spring 2 that was previously stretched by the pull can shrink, and then the spring 2 is pulled to guide the column to drive the triangular sealing plate down along the fixed plate. At this time, the bottom of the triangular sealing plate is fit with the upper surface of the inclined baffle, so that the triangular sealing plate can be blocked at the bottom of the oil drain chamber. This method can effectively avoid the problem that after the receiving box for collecting oil stains in the prior art is removed, some residual oil stains will directly flow from the base of the oil drain chamber to the surface of the stove, requiring additional cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a front view structural schematic diagram of the present invention;

[0019] Figure 2 It is a side structural schematic diagram of the present invention;

[0020] Figure 3 The present invention Figure 2 Schematic diagram of the cross-sectional structure;

[0021] Figure 4 2 is a schematic diagram of the rear structure of the filter screen plate of the present invention;

[0022] Figure 5 It is a side structural schematic diagram of the receiving box of the present invention;

[0023] Figure 6 This is a schematic diagram of the connection structure of the triangular sealing plate and the fixing plate of the present invention;

[0024] Figure 7 The present invention Figure 4 A schematic diagram of the enlarged structure at point A;

[0025] Figure 8 The present invention Figure 3 A schematic diagram of the enlarged structure at point B;

[0026] Figure 9 The present invention Figure 2 Schematic diagram of the enlarged structure at C;

[0027] Figure 10 The present invention Figure 3 A schematic diagram of the structure at D of FIG.

[0028] Figure 11 The present invention Figure 6 A schematic diagram of the structure at E is enlarged;

[0029] Figure 12 The present invention Figure 1 Enlarged structural diagram of F.

[0030] In the figure: 1. Wall-mounted shell; 2. Exhaust pipe; 3. Exhaust fan; 4. Control panel; 5. Filter plate; 6. Fixed block; 7. Sliding column; 8. Sliding sleeve; 9. Shaft column; 10. Mounting plate; 11. Oil drain chamber; 12. Socket box; 13. Inclined bayonet; 14. Snap-on cylinder; 15. Spring 1; 16. Inclined guide plate; 17. Inclined baffle; 18. Triangular sealing plate; 19. Fixed plate; 20. Guide column; 21. Spring 2; 22. Vertical slot; 23. Lifting column; 24. Sealing strip; 25. Pull plate; 26. Limiting column; 27. Positioning column; 28. Positioning hole; 29. ​​Spring 3. DETAILED DESCRIPTION

[0031] In order to make the technical solution of the present invention clearer, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0032] Example 1

[0033] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 7 and Figure 8As shown, a wide-band impedance silencing device with multi-physical field coupling is provided, comprising a wall-mounted shell 1, an exhaust pipe 2 is integrally formed on the top of the wall-mounted shell 1, an exhaust fan 3 is fixedly installed inside the exhaust pipe 2, and a control panel 4 is fixedly installed on the front surface of the wall-mounted shell 1; a filter screen 5 is provided on the inner side of the wall-mounted shell 1, and fixed blocks 6 are symmetrically fixedly connected to the two sides of the rear surface of the filter screen 5, and a sliding column 7 is fixedly connected between two adjacent fixed blocks 6, and a sliding sleeve 8 is slidably connected to the outer side of the sliding column 7, and a shaft column 9 is rotatably connected to the inner side of the sliding sleeve 8 through a rotating shaft, and the opposite ends of the two shaft columns 9 opposite to each other are fixedly connected with mounting plates 10, and the opposite sides of the two mounting plates 10 are respectively disassembled and mounted on the inner sides of the wall-mounted shell 1 by bolts; an oil drain chamber 11 is integrally formed on the bottom of the wall-mounted shell 1; a receiving box 12 is provided at the bottom of the oil drain chamber 11;

[0034] The filter screen plate 5 is integrally formed with an inclined bayonet 13 on both sides, and a clamping cylinder 14 is fixedly connected to the inner side of the two inclined bayonet 13 on both sides of the interior of the wall-mounted housing 1;

[0035] The upper surface of the fixed block 6 and the lower surface of the sliding sleeve 8 below the rear surface of the filter plate 5, and the outer side wall of the shaft column 9 are fixedly connected with a spring 15;

[0036] An inclined guide plate 16 is integrally formed on the bottom of the rear surface of the filter screen plate 5. The end of the inclined guide plate 16 away from the filter screen plate 5 extends to the inner side of the oil drain chamber 11.

[0037] The device is composed of a wall-mounted oil fume device, which is composed of a wall-mounted shell 1, an exhaust pipe 2, an exhaust fan 3, a control panel 4 and a filter plate 5. The exhaust pipe 2 and the exhaust fan 3 are used in conjunction with each other to achieve the effect of extracting and discharging oil fume. The control panel 4 is used to control the start-up of the device, and the filter plate 5 is used to perform preliminary filtering on the extracted oil fume.

[0038] Under normal conditions, the bottom of the filter screen panel 5 is assembled with the wall-mounted housing 1 by means of the mounting piece 10, and the clamping cylinder 14 is clamped in the inclined bayonet 13. Since the filter screen panel 5 can slide obliquely along the outer wall of the sliding column 7 through the sliding sleeve 8, the spring 15 has a tendency to pull the filter screen panel 5 obliquely downward, so that the clamping cylinder 14 can be stably clamped in the inclined bayonet 13, ensuring the stability of the installation of the filter screen panel 5.

[0039] There is a gap between the top of the filter plate 5 and the upper inner side of the wall-mounted housing 1;

[0040] When the device is used for a long time and the inside of the wall-mounted shell 1 and the filter screen plate 5 need to be cleaned, the user can press the front surface of the filter screen plate 5 with his hand and drag it obliquely upward. At this time, the filter screen plate 5 is subjected to the force of the oblique upward drag, so that the sliding sleeve 8 slides obliquely upward along the outer wall of the sliding column 7, thereby facilitating the disengagement of the clamping cylinder 14 from the inside of the inclined bayonet 13. Then, the sliding sleeve 8 can be rotated along the outer wall of the shaft column 9 to open the filter screen plate 5, thereby facilitating the cleaning of the rear surface of the filter screen plate 5, that is, the part inside the wall-mounted shell 1, and avoiding the problem that the mesh of the filter screen plate 5 is easily clogged after long-term use, which affects the air intake effect. At the same time, after the filter screen plate 5 is opened, the inside of the wall-mounted shell 1 can be tilted.

[0041] The device can guide the oil stains adhering to the surface of the filter plate 5 to the inner side of the oil drain chamber 11 through the inclined guide plate 16, and discharge them into the receiving box 12 through the oil drain chamber 11 for collection, and the oil stains on the inner wall of the wall-mounted shell 1 will also be discharged into the receiving box 12 through the oil drain chamber 11 for collection and storage.

[0042] like Figure 6 、 Figure 9 、 Figure 10 、 Figure 11 and Figure 12 As shown, two inclined baffles 17 are integrally formed at the bottom of the oil drain chamber 11. A triangular sealing plate 18 is provided on the inner side of the oil drain chamber 11 above the inclined baffles 17. A fixing plate 19 is fixedly connected to the inner side of the oil drain chamber 11 and below the triangular sealing plate 18. A guide post 20 is fixedly connected to the lower surface of the triangular sealing plate 18. The bottom end of the guide post 20 extends to the bottom of the fixing plate 19.

[0043] A plurality of springs 21 are fixedly connected to the opposite sides of the triangular sealing plate 18 and the fixing plate 19 and located outside the plurality of guide pillars 20;

[0044] Vertical grooves 22 are provided at the lower sides of the interior of the wall-mounted shell 1. Lifting columns 23 are fixedly connected to the inner sides of the two vertical grooves 22 on both sides of the triangular sealing plate 18. The lifting columns 23 are slidably connected to the vertical grooves 22. The opposite ends of the two lifting columns 23 are fixedly connected to sealing strips 24 on both sides of the wall-mounted shell 1. A pulling plate 25 is provided on the side of the sealing strip 24 away from the wall-mounted shell 1. The side of the pulling plate 25 close to the sealing strip 24 is fixedly connected to a limit stop column 26 and a positioning column 27 from top to bottom. The side of the limit stop column 26 away from the pulling plate 25 passes through the sealing strip 24 and extends to the inner side of the vertical groove 22. The outer wall of the limit stop column 26 fits in with the lower inner side of the vertical groove 22.

[0045] Positioning holes 28 are provided on both sides of the receiving box 12. The side of the positioning post 27 away from the pulling plate 25 passes through the sealing strip 24 and is inserted into the inner side of the positioning hole 28.

[0046] On the opposite side of the pulling plate 25 and the sealing strip 24, and on the outer side walls of the positioning column 27 and the limiting column 26, spring three 29 is fixedly connected;

[0047] After the receiving box 12 is installed to the bottom of the wall-mounted shell 1 and connected to the oil drain chamber 11, under the pull of the spring three 29, the positioning post 27 is inserted into the positioning hole 28 for positioning, and the limiting stop post 26 is clamped into the vertical groove 22 for limiting, so that the top of the receiving box 12 is tightly fitted to the bottom of the wall-mounted shell 1, and at this time the bottom of the triangular sealing plate 18 is away from the inclined baffle 17, and at this time the spring two 21 is pulled, so that the guide post 20 rises along the fixing plate 19 and is in a state of pushing the triangular sealing plate 18 upward. At this time, there is a gap between the triangular sealing plate 18 and the oil drain chamber 11, so that the oil stains inside the wall-mounted shell 1 and the oil stains inside the filter plate 5 can be discharged into the receiving box 12 through the gap between the triangular sealing plate 18 and the oil drain chamber 11 and collected. And because the top of the triangular sealing plate 18 is pointed, the oil stains dripping to the top of the triangular sealing plate 18 can be guided to the inside of the receiving box 12 for collection.

[0048] When it is necessary to disassemble the receiving box 12 to deal with the oil stains collected inside, the hand-held pulling plate 25 is pulled toward the side away from the wall-mounted shell 1, so that the positioning column 27 is disengaged from the positioning hole 28. At this time, the receiving box 12 is removed, which is convenient for pouring out the internal stored oil stains for cleaning. After removing the receiving box 12, since the positioning column 27 is not limited, the spring 21 that was previously stretched by the pull can shrink, and then the spring 21 pulls, the guide column 20 can drive the triangular sealing plate 18 down along the fixed plate 19. At this time, the bottom of the triangular sealing plate 18 is in contact with the upper surface of the inclined baffle 17, so that the triangular sealing plate 18 can be blocked at the bottom of the oil drain chamber 11. This method can effectively avoid the problem in the prior art that after the receiving box 12 for collecting oil stains is removed, some residual oil stains will directly flow from the base of the oil drain chamber 11 to the surface of the stove, requiring additional cleaning.

[0049] The above-described embodiments merely illustrate several implementations of the present invention, and while their descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A multi-physics field coupled wide-band impedance silencing device, comprising a wall-mounted housing (1), characterized in that: The top of the wall-mounted shell (1) is integrally formed with an exhaust pipe (2), an exhaust fan (3) is fixedly installed inside the exhaust pipe (2), and a control panel (4) is fixedly installed on the front surface of the wall-mounted shell (1); a filter screen (5) is provided on the inner side of the wall-mounted shell (1), and both sides of the rear surface of the filter screen (5) are symmetrically fixedly connected with fixed blocks (6); a sliding column (7) is fixedly connected between two adjacent fixed blocks (6), the outer side of the sliding column (7) is slidably connected with a sliding sleeve (8), the inner side of the sliding sleeve (8) is rotatably connected to a shaft column (9) through a rotating shaft, and the opposite ends of the two opposite shaft columns (9) are fixedly connected with mounting plates (10), and the opposite sides of the two mounting plates (10) are respectively disassembled and installed with the inner sides of the wall-mounted shell (1) by bolts; the bottom of the wall-mounted shell (1) is integrally formed with an oil drain chamber (11); the bottom of the oil drain chamber (11) is provided with a receiving box (12).

2. The multi-physics field coupled wide-band impedance silencing device according to claim 1, characterized in that: Inclined bayonet holes (13) are integrally formed above both sides of the filter screen plate (5), and clamping cylinders (14) are fixedly connected to the inner sides of the two inclined bayonet holes (13) on both sides of the interior of the wall-mounted housing (1).

3. The multi-physics field coupled wide-band impedance silencing device according to claim 1, characterized in that: A spring 1 (15) is fixedly connected to the upper surface of the fixed block (6) and the lower surface of the sliding sleeve (8) located below the rear surface of the filter screen plate (5), and to the outer side wall of the shaft column (9).

4. The multi-physics field coupled wide-band impedance silencing device according to claim 1, characterized in that: An inclined guide plate (16) is integrally formed at the bottom of the rear surface of the filter screen plate (5), and one end of the inclined guide plate (16) away from the filter screen plate (5) extends to the inner side of the oil drain cavity (11).

5. The multi-physics field coupled wide-band impedance silencing device according to claim 1, characterized in that: Two inclined baffles (17) are integrally formed at the bottom of the oil drain chamber (11); a triangular sealing plate (18) is provided on the inner side of the oil drain chamber (11) and above the inclined baffle (17); a fixed plate (19) is fixedly connected to the inner side of the oil drain chamber (11) and below the triangular sealing plate (18); a guide column (20) is fixedly connected to the lower surface of the triangular sealing plate (18); and the bottom end of the guide column (20) extends to the bottom of the fixed plate (19).

6. The multi-physics field coupled wide-band impedance silencing device according to claim 5, characterized in that: A plurality of springs 2 (21) are fixedly connected to the opposite sides of the triangular sealing plate (18) and the fixing plate (19) and located outside the plurality of guide pillars (20).

7. The multi-physics field coupled wide-band impedance silencing device according to claim 5, characterized in that: Vertical grooves (22) are provided at the lower sides of the interior of the wall-mounted shell (1), and lifting columns (23) are fixedly connected to the inner sides of the two vertical grooves (22) on both sides of the triangular sealing plate (18), and the lifting columns (23) are slidably connected to the vertical grooves (22). The opposite ends of the two lifting columns (23) are fixedly connected to sealing strips (24) on both sides of the wall-mounted shell (1), and a pulling plate (25) is provided on the side of the sealing strip (24) away from the wall-mounted shell (1). The side of the pulling plate (25) close to the sealing strip (24) is fixedly connected to a limiting block column (26) and a positioning column (27) in sequence from top to bottom. The side of the limiting block column (26) away from the pulling plate (25) passes through the sealing strip (24) and extends to the inner side of the vertical groove (22), and the outer side wall of the limiting block column (26) is in contact with the lower inner side of the vertical groove (22).

8. The multi-physics field coupled wide-band impedance silencing device according to claim 7, characterized in that: Positioning holes (28) are provided on both sides of the receiving box (12), and the side of the positioning column (27) away from the pulling plate (25) passes through the sealing strip (24) and is inserted into the inner side of the positioning hole (28).

9. The multi-physics field coupled wide-band impedance silencing device according to claim 8, characterized in that: Spring three (29) is fixedly connected to the opposite sides of the pulling plate (25) and the sealing strip (24), and to the outer side walls of the positioning column (27) and the limiting column (26).

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