A range hood with a rotatable oil mesh

Abstract

The present invention provides a range hood with a rotatable oil mesh, which includes an oil mesh, a deflector, a lead screw motor assembly, a sliding assembly and a range hood body. The upper end of the oil mesh is movably connected to the sliding assembly, and the lower end is movably connected to the front end of the deflector. The rear end of the deflector is movably connected to the rear edge of the bottom of the range hood body. Both the lead screw motor assembly and the sliding assembly are fixed on the front wall of the range hood body, and the lead screw motor assembly is connected to the upper end of the oil mesh; the lead screw motor assembly drives the oil mesh to turn down along the sliding assembly and drives the deflector to turn down together. The present invention makes the oil mesh extend downward, and the negative pressure area below the oil mesh moves downward, making the smoke collection cavity formed by the oil mesh and the deflector closer to the cooking stove. The cooking fumes generated by the cooking stove are sucked away by the range hood in the first time, avoiding the diffusion of the cooking fumes during the rising process and achieving a better fume collection effect.

Description

Technical Field

[0001] The present invention belongs to the technical field of range hoods, and particularly relates to a range hood with a rotatable oil mesh. Background Art

[0002] At present, European-style range hoods have increasingly replaced Chinese-style range hoods and become the first choice of users. European-style top-suction range hoods have a large smoke-gathering cavity and the characteristic that oil fumes are not easily diffused, thus occupying a large proportion in the market. The main function of the oil mesh is to prevent large objects from being sucked into the range hood. Secondly, the flanging structure of the oil mesh can effectively guide oil. The installation position also most directly controls the effective smoke-sucking area of a range hood. In the prior art, the position of the oil mesh is relatively high relative to the stove top. During the actual cooking process, due to the thermal reason generated by the heating in the pot, the oil fumes will quickly diffuse during the rising process, and the smoke-gathering effect is not ideal. Summary of the Invention

[0003] In order to solve some problems existing in the above prior art, the main purpose of the present invention is to provide a range hood with a rotatable oil mesh, which can lower the oil mesh close to the stove top to enhance the smoke-gathering effect.

[0004] In order to achieve the above purpose, the present invention provides a range hood with a rotatable oil mesh, which includes an oil mesh, a deflector, a lead screw motor assembly, a sliding assembly and a range hood body. The upper end of the oil mesh is movably connected to the sliding assembly, the lower end is movably connected to the front end of the deflector, the rear end of the deflector is movably connected to the rear side of the bottom of the range hood body, the lead screw motor assembly and the sliding assembly are both fixed on the front wall of the range hood body, and the lead screw motor assembly is connected to the upper end of the oil mesh; the lead screw motor assembly drives the oil mesh to turn down along the sliding assembly and drives the deflector to turn down together to move the smoke inlet cavity downward to increase the depth of the smoke inlet cavity, or drives the oil mesh to turn upward to fold the oil mesh into the range hood body.

[0005] Further, the lead screw motor assembly includes a lead screw motor, a lead screw slider and a cross bar. The lead screw slider is movably connected to the lead screw of the lead screw motor and is fixedly connected to the middle of the cross bar. The two ends of the cross bar are slidably connected to the sliding assembly, and the upper ends of the oil mesh are connected to the two ends of the cross bar.

[0006] Further, it further includes a lead screw motor bracket, which is fixed on the front wall of the range hood body, and the lead screw motor is installed in the lead screw motor bracket.

[0007] Further, it further includes a first link assembly. The first link assembly includes a first oil screen link, a first deflector link, and a first auxiliary link. The middle of the first deflector link is connected to the middle of the first side of the deflector. The front end of the first oil screen link is slidably connected to the sliding assembly and is simultaneously connected to the upper end of the oil screen. The rear end of the first oil screen link and the front end of the first deflector link are connected to a first rivet. The lower end of the oil screen is provided with a tongue, and the tongue is snap-connected to a first tongue groove at the rear end of the first oil screen link. The rear end of the first deflector link is connected to the front end of the first auxiliary link, and the rear end of the first auxiliary link is movably connected to the first side wall of the range hood body.

[0008] Further, it further includes a second link assembly. The second link assembly includes a second oil screen link, a second deflector link, and a second auxiliary link. The middle of the second deflector link is connected to the middle of the second side of the deflector. The front end of the second oil screen link is slidably connected to the sliding assembly and is simultaneously connected to the upper end of the oil screen. The rear end of the second oil screen link and the front end of the second deflector link are connected to a second rivet. The tongue is snap-connected to a second tongue groove at the rear end of the second oil screen link. The rear end of the second deflector link is connected to the front end of the second auxiliary link, and the rear end of the second auxiliary link is movably connected to the second side wall of the range hood body.

[0009] Further, the cross-section of the oil screen is arc-shaped, the radius of the arc is 250 - 350 mm, and a plurality of smoke inlet holes are provided on the oil screen.

[0010] Further, it further includes an oil screen side plate. The oil screen side plate is fixed on the side of the oil screen. When the oil screen is turned downwards, the oil screen side plate, the oil screen, and the deflector form a smoke collecting cavity.

[0011] Further, it further includes a diversion groove and a diversion ring. The diversion groove is arranged at the front end of the deflector, and the diversion ring is arranged around the smoke inlet at the bottom of the range hood body.

[0012] Further, it further includes an oil cup. The oil cup is connected to the rear end of the deflector. The oil cup is a cuboid or a cylinder and is fixed at the rear of the bottom of the range hood body. The oil cup is communicated with the diversion groove.

[0013] Further, the lead screw motor assembly is replaced by a gear motor assembly. The gear motor assembly includes a gear motor, a sliding cross bar, and a rack. The gear motor is fixed on the sliding cross bar, the rack is fixed on the front wall of the range hood body, a gear is provided on the transmission shaft of the gear motor, the gear meshes with the rack, both ends of the sliding cross bar are slidably connected to the sliding assembly, and the upper end of the oil screen is connected to both ends of the sliding cross bar.

[0014] Compared with the prior art, the beneficial effects of the oil fume exhaust machine with a rotatable oil net according to the present invention are as follows: The oil net is driven by a lead screw motor assembly to turn down along the sliding assembly, and then drives the deflector plate to turn down together. The oil net extends downward, and the negative pressure area below the oil net moves downward, making the smoke collecting cavity formed by the oil net and the deflector plate closer to the stove top. The oil fume generated by the stove top is sucked away by the oil fume exhaust machine in a timely manner, avoiding the diffusion of oil fume during the rising process, and having a better fume gathering effect than the traditional oil fume exhaust machine with a fixed oil net. At the same time, when the oil fume exhaust machine is not working, the lead screw motor assembly drives the oil net and the deflector plate to turn up and retract into the main body of the smoke machine, making the overall appearance of the oil fume exhaust machine more generous and beautiful. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 FIG. 6 is a schematic structural diagram of the oil fume exhaust machine with a rotatable oil net according to Embodiment 1 of the present invention;

[0016] Figure 2 FIG. 10 is an external view of the closed state of the oil net and the deflector plate according to Embodiment 1 of the present invention;

[0017] Figure 3 FIG. 14 is an external view of the opened state of the oil net and the deflector plate according to Embodiment 1 of the present invention;

[0018] Figure 4 FIG. 18 is a cross-sectional view of the closed state of the oil net and the deflector plate according to Embodiment 1 of the present invention;

[0019] Figure 5 FIG. 22 is a cross-sectional view of the opened state of the oil net and the deflector plate according to Embodiment 1 of the present invention;

[0020] Figure 6 FIG. 26 is an exploded combination view of the connecting rod assembly according to Embodiment 1 of the present invention Figure 1 ;

[0021] Figure 7 FIG. 32 is an exploded combination view of the lead screw motor assembly according to Embodiment 1 of the present invention;

[0022] Figure 8 FIG. 36 is an exploded combination view of the connecting rod assembly according to Embodiment 1 of the present invention Figure 2 ;

[0023] Figure 9 FIG. 42 is a schematic structural diagram of the gear motor assembly according to Embodiment 2 of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0025] Embodiment 1:

[0026] Embodiment 1 of the present invention provides a range hood with a rotatable oil net, as Figures 1-5 shown, which includes an oil net 1, a deflector 2, a lead screw motor assembly 3, a sliding assembly 5, and a range hood body 7. The upper end of the oil net 1 is movably connected to the sliding assembly 5, and the lower end is movably connected to the front end of the deflector 2. The rear end of the deflector 2 is movably connected to the rear edge 74 of the bottom of the range hood body 7. The lead screw motor assembly 3 and the sliding assembly 5 are fixed on the front wall 73 of the range hood body 7, and the lead screw motor assembly 3 is connected to the upper end of the oil net 1.

[0027] With the above structure, the lead screw motor assembly 3 drives the oil net 1 to turn down along the sliding assembly 5, and then drives the deflector 2 to turn down together. The oil net 1 extends downward, and the negative pressure area below the oil net 1 moves downward, making the smoke collection cavity formed by the oil net 1 and the deflector 2 closer to the stove top. The cooking fumes generated by the stove are sucked away by the range hood in the first time, avoiding the diffusion of cooking fumes during the rising process and enhancing the smoke collection effect. When the range hood is not working, the lead screw motor assembly 3 drives the oil net 1 and the deflector 2 to turn up and retract into the interior of the range hood body 7, making the appearance of the range hood beautiful and tidy.

[0028] As Figure 6 and 7 shown, the lead screw motor assembly 3 includes a lead screw motor 31, a lead screw slider 32, a lead screw motor bracket 33, and a cross bar 34. The lead screw motor bracket 33 is fixed on the front wall 73. The lead screw motor 31 is installed in the lead screw motor bracket 33. The lead screw slider 32 is movably connected to the lead screw of the lead screw motor 31 and is fixedly connected to the middle of the cross bar 34. The two ends of the cross bar 34 are slidably connected to the sliding assembly 5, and the upper end of the oil net 1 is connected to the two ends of the cross bar 34;

[0029] In this way, when the lead screw of the lead screw motor 31 rotates, the lead screw slider 32 moves on the lead screw, driving the cross bar 34 to slide on the sliding assembly 5, and then making the oil net 1 turn up and down along the sliding assembly 5.

[0030] The lead screw motor assembly 3 of this embodiment has high stability, is easy to disassemble and assemble, operates smoothly, has a small motor load, a low failure rate, and a long service life.

[0031] This embodiment further includes a connecting rod assembly. The connecting rod assembly includes a first connecting rod assembly 41 and a second connecting rod assembly 42, as Figures 6-8 shown,

[0032] The first link assembly 41 includes a first oil screen link 411, a first deflector link 412, and a first auxiliary link 413. The middle part of the first deflector link 412 is connected to the middle part of the first side 21 of the deflector 2. The front end of the first oil screen link 411 is movably connected to the sliding assembly 5 and is simultaneously connected to the upper end of the oil screen 1. The rear end of the first oil screen link 411 and the front end of the first deflector link 412 are connected to the first rivet 43. The lower end of the oil screen 1 is provided with a tongue 14, and the tongue 14 is snap-connected to the first tongue groove 414 at the rear end of the first oil screen link 411. The rear end of the first deflector link 412 is connected to the front end of the first auxiliary link 413, and the rear end of the first auxiliary link 413 is connected to the first side wall 71 of the range hood body 7.

[0033] The second link assembly 42 includes a second oil screen link 421, a second deflector link 422, and a second auxiliary link 423. The middle part of the second deflector link 422 is connected to the middle part of the second side 22 of the deflector 2. The front end of the second oil screen link 421 is slidably connected to the sliding assembly 5 and is simultaneously connected to the upper end of the oil screen 1. The rear end of the second oil screen link 421 and the front end of the second deflector link 422 are connected to the second rivet 44. The tongue 14 is snap-connected to the second tongue groove 424 at the rear end of the second oil screen link 421. The rear end of the second deflector link 422 is connected to the front end of the second auxiliary link 423, and the rear end of the second auxiliary link 423 is connected to the second side wall 72 of the range hood body 7;

[0034] The snap connection between the tongue 14 and the first tongue groove 414 and the second tongue groove 424 can make the disassembly and assembly of the oil screen 1 more convenient and fast;

[0035] In this way, the lead screw motor assembly 3 drives the first oil screen link 411 and the second oil screen link 421 to move on the sliding assembly, and through the linkage of the first deflector link 412, the first auxiliary link 413, the second deflector link 422, and the second auxiliary link 423, the oil screen 1 and the deflector 2 are driven to flip.

[0036] The cross-section of the oil screen 1 is circular arc-shaped, and the radius of the circular arc is 250 - 350 mm, preferably 300 mm in this embodiment; a plurality of smoke inlet holes are opened on the oil screen; this can increase the contact area between the oil screen 1 and the oil fume, and at the same time, when the oil screen 1 is upright, the grease on it can flow down better along the arc; a plurality of smoke inlet holes are opened on the oil screen to preliminarily filter the oil fume.

[0037] As Figures 1-3 shown, this embodiment further includes an oil screen side plate 13, a diversion groove 23, a diversion ring 24, and an oil cup 6;

[0038] The oil screen side plate 13 is fixed to the side edge of the oil screen 1. When the oil screen 1 is turned downwards, the oil screen side plate 13, the oil screen 1 and the deflector 2 form a smoke collecting cavity, which enables the smoke collecting cavity to be closer to the cooking range, so that the oil fume generated in the pot can be sucked away in the first time.

[0039] The diversion groove 23 is arranged at the front end of the deflector 2. When the oil screen 1 and the deflector 2 are opened and the range hood is working, the oil drops on the oil screen 1 and the deflector 2 smoothly slide into the diversion groove 23, preventing the oil drops from falling into the pot.

[0040] The oil cup 6 is connected to the rear end of the deflector 2. The oil cup 6 is in the shape of a cuboid or a cylinder, and preferably a cuboid in this embodiment, and is fixed to the rear side at the bottom of the range hood body 7.

[0041] The diversion ring 24 is arranged around the smoke inlet at the bottom of the range hood body 7. When the deflector 2 is closed, it surrounds the deflector 2. The diversion ring 24 is communicated with the oil cup 6, and the oil drops on the oil screen 1 and the deflector 2 flow into the diversion ring 24 and then flow into the oil cup 6 along the diversion ring 24.

[0042] The oil cup 6 is fixed to the rear side at the bottom of the range hood body 7, which solves the problem that oil in the middle of the oil cup is likely to drip into the pot and is also conducive to the oil stains on the oil screen 1 and the deflector 2 flowing into the oil cup 6.

[0043] When the range hood in this embodiment is working, the oil screen 1 and the deflector 2 are turned downwards, causing the oil screen 1 to extend downward, enhancing the smoke gathering effect; when it is not working, the oil screen 1 and the deflector 2 are retracted into the interior of the range hood body 7, with an aesthetic and technological appearance.

[0044] Embodiment Two:

[0045] On the basis of Embodiment One, Embodiment Two of the present invention provides a range hood with a rotatable oil screen, as Figure 8 shown. The screw rod motor assembly 3 is replaced with a gear motor assembly 8. The gear motor assembly 8 includes a gear motor 81, a sliding cross bar 82 and a rack 83. The gear motor 81 is fixed on the sliding cross bar 82, the rack 83 is fixed on the front wall 73 of the range hood body, a gear 811 is arranged on the transmission shaft of the gear motor 81, the gear 811 meshes with the rack 83, both ends of the sliding cross bar 82 are slidably connected with the sliding assembly 5, and the upper end of the oil screen 1 is connected to both ends of the sliding cross bar 52; the rack 83 is vertically arranged and located in the exact middle of the sliding assembly 5, so that the sliding cross bar 82 is evenly stressed and moves more smoothly.

[0046] The gear motor 81 rotates the gear 811, generates a driving force through meshing with the rack 83, makes the sliding cross bar 82 move on the sliding assembly 5, and drives the oil screen 1 to flip up and down.

[0047] The technical effect of the second embodiment of the present invention is the same as that of the first embodiment. The gear motor assembly 8 drives the oil mesh 1 to turn down along the sliding assembly 5, and then drives the deflector 2 to turn down together. The oil mesh 1 extends downward, and the negative pressure area below the oil mesh 1 moves downward, making the smoke collection cavity formed by the oil mesh 1 and the deflector 2 closer to the cooking range. The cooking fumes generated by the cooking range are sucked away by the range hood in the first time, avoiding the diffusion of the cooking fumes during the rising process and enhancing the smoke gathering effect. When the range hood is not working, the gear motor assembly 8 drives the oil mesh 1 and the deflector 2 to turn up and retract into the interior of the range hood body 7, making the appearance of the range hood beautiful and full of a sense of technology.

[0048] The above are only the preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present invention should be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. An oil mesh reversible range hood, characterized in that, It includes an oil net, a deflector, a lead screw motor assembly, a sliding assembly and a range hood body. The upper end of the oil net is movably connected to the sliding assembly, and the lower end is movably connected to the front end of the deflector. The rear end of the deflector is movably connected to the rear edge of the bottom of the range hood body. The lead screw motor assembly and the sliding assembly are both fixed on the inner front wall of the range hood body, and the lead screw motor assembly is connected to the upper end of the oil net. The lead screw motor assembly drives the oil net to turn down along the sliding assembly, and drives the deflector to turn down together to move the smoke inlet cavity downward to increase the depth of the smoke collection cavity, or drives the oil net to turn upward to fold the oil net into the range hood body. The lead screw motor assembly includes a lead screw motor, a lead screw slider and a cross bar. The lead screw slider is movably connected to the lead screw of the lead screw motor and is fixedly connected to the middle of the cross bar. The two ends of the cross bar are slidably connected to the sliding assembly, and the upper end of the oil net is connected to the two ends of the cross bar. The cross section of the oil net is circular arc-shaped, the radius of the circular arc is 250-350 mm, and a plurality of smoke inlet holes are provided on the oil net.

2. The range hood with a rotatable oil screen according to claim 1, wherein, It also includes a lead screw motor bracket fixed on the front wall of the range hood body, and the lead screw motor is installed in the lead screw motor bracket.

3. The range hood with a rotatable oil screen according to claim 1, characterized in that, It also includes a first connecting rod assembly. The first connecting rod assembly includes a first oil net connecting rod, a first deflector connecting rod and a first auxiliary connecting rod. The middle of the first deflector connecting rod is connected to the middle of the first side of the deflector. The front end of the first oil net connecting rod is slidably connected to the sliding assembly and is simultaneously connected to the upper end of the oil net. The rear end of the first oil net connecting rod and the front end of the first deflector connecting rod are connected to a first rivet. The lower end of the oil net is provided with a tongue, and the tongue is snap-connected to a first tongue slot at the rear end of the first oil net connecting rod. The rear end of the first deflector connecting rod is connected to the front end of the first auxiliary connecting rod, and the rear end of the first auxiliary connecting rod is movably connected to the first side wall of the range hood body.

4. The range hood with a turnable oil screen according to claim 3, wherein, It also includes a second connecting rod assembly. The second connecting rod assembly includes a second oil net connecting rod, a second deflector connecting rod and a second auxiliary connecting rod. The middle of the second deflector connecting rod is connected to the middle of the second side of the deflector. The front end of the second oil net connecting rod is slidably connected to the sliding assembly and is simultaneously connected to the upper end of the oil net. The rear end of the second oil net connecting rod and the front end of the second deflector connecting rod are connected to a second rivet. The tongue is snap-connected to a second tongue slot at the rear end of the second oil net connecting rod. The rear end of the second deflector connecting rod is connected to the front end of the second auxiliary connecting rod, and the rear end of the second auxiliary connecting rod is connected to the second side wall of the range hood body.

5. The range hood with a rotatable oil screen according to claim 1, wherein It also includes oil net side plates fixed on the sides of the oil net. When the oil net turns down, the oil net side plates, the oil net and the deflector form a smoke collection cavity.

6. The range hood with a rotatable oil screen according to claim 1, wherein, It also includes a diversion groove and a diversion ring. The diversion groove is arranged at the front end of the deflector, and the diversion ring is arranged around the smoke inlet of the bottom of the range hood body.

7. The range hood with a rotatable oil mesh according to claim 6, characterized in that, It further includes an oil cup which is connected to the rear end of the deflector. The oil cup is a cuboid or a cylinder and is fixed to the rear of the bottom of the range hood body. The oil cup is communicated with the deflector ring.

8. The oil fume range hood with a reversible oil mesh according to any one of claims 1-7, characterized in that, The screw rod motor assembly is replaced by a gear motor assembly. The gear motor assembly includes a gear motor, a sliding cross bar and a rack. The gear motor is fixed on the sliding cross bar. The rack is fixed on the front wall of the range hood body. A gear is provided on the transmission shaft of the gear motor. The gear meshes with the rack. Both ends of the sliding cross bar are slidably connected to the sliding assembly. The upper end of the oil net is connected to both ends of the sliding cross bar.

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