CN212585028U

CN212585028U - Fume exhaust fan

Info

Publication number: CN212585028U
Application number: CN202021168353.XU
Authority: CN
Inventors: 胡克吉; 龙慎文
Original assignee: Hisense Guangdong Kitchen and Bath System Co Ltd
Current assignee: Hisense Guangdong Kitchen and Bath System Co Ltd
Priority date: 2020-06-22
Filing date: 2020-06-22
Publication date: 2021-02-23
Anticipated expiration: 2030-06-22

Abstract

The utility model discloses a range hood can make things convenient for the dismantlement of smoke deflector. The range hood comprises a fume collecting hood, a fume guide plate and a pressing lock catch. The smoke guide plate is hinged at the opening of the smoke collecting cover. The press lock catch comprises a buckle and a clamping seat, and the clamping seat is positioned on a rotating track of the buckle. The cassette includes support, jack catch subassembly, first piece and the locking subassembly that resets. The jaw assembly is connected with the support in a sliding mode and comprises a rotatable jaw and a second reset piece connected with the jaw. When the claw is positioned outside the bracket, the claw is in an opening state under the action of the second resetting piece. When the buckle extrudes the jaw assembly into the bracket, the jaw can be folded and the buckle is clamped. The locking assembly is capable of locking the jaw assembly when the jaw assembly is squeezed to the first position. When the claw assembly located at the first position is squeezed again, the locking assembly is unlocked, the claw can slide out of the support under the action of the first reset piece, and the claw can be in an opening state under the action of the second reset piece.

Description

Fume exhaust fan

Technical Field

The utility model relates to a range hood technical field especially relates to a range hood.

Background

At present, in order to improve range hood's smoking and filter effect, range hood collection petticoat pipe's below sets up the smoke guide plate to for the convenience of smoke guide plate's cleanness, generally with a tip of smoke guide plate articulated with collection petticoat pipe, connect the mode detachably that another tip of smoke guide plate passes through magnet steel connection or buckle and connects on collection petticoat pipe.

However, when the mode that adopts magnet steel connection or buckle connection to couple together smoke deflector and collection petticoat pipe, in order to guarantee the reliability of being connected between smoke deflector and the collection petticoat pipe, magnetic force between the magnet steel or the joint power between the buckle structure need be greater than the gravity of smoke deflector, consequently, when dismantling smoke deflector, the user need apply the effort that is greater than the gravity of smoke deflector to smoke deflector and just can dismantle smoke deflector from collection petticoat pipe, lead to the great degree of difficulty that will smoke deflector follow collection petticoat pipe and dismantle.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a range hood can make things convenient for the dismantlement of smoke deflector.

In order to achieve the purpose, the utility model provides a range hood. The range hood comprises a fume collecting hood, a fume guide plate and a pressing lock catch. Wherein, the smoke guide plate is hinged at the opening of the smoke collecting cover. The press lock catch comprises a buckle and a clamping seat. The buckle is arranged on the smoke guide plate, the clamping seat is arranged on the smoke collection cover, and the clamping seat is positioned on the rotating track of the buckle. The cassette includes support, jack catch subassembly, first piece and the locking subassembly that resets. The jaw assembly is connected with the support in a sliding mode and comprises a rotatable jaw and a second reset piece connected with the jaw. When the clamping jaws are positioned outside the bracket, the second resetting piece is used for enabling the clamping jaws to be in an open state.

When the buckle extrudes the jaw assembly into the support, the jaw is folded under the limiting effect of the support and clamps the buckle, and when the jaw assembly is extruded to a first position, the jaw is positioned in the support, and the locking assembly can lock the jaw assembly. When the claw assembly located at the first position is squeezed again, the locking assembly is unlocked, and the claw assembly can slide out of the support under the action of the second reset piece.

Compared with the prior art, the utility model provides an among the range hood, when the buckle extrudees the jack catch subassembly in to the support, the jack catch can draw in and block the buckle under the limiting displacement of support. And when jaw assembly was extruded to the primary importance, the locking subassembly can pin jaw assembly for after removing the buckle to jaw assembly's extrusion force, the locking subassembly carries on spacingly to jaw assembly, prevents that jaw assembly from sliding out the support under the effect of first elasticity piece that resets, makes jaw assembly keep at the primary importance. Therefore, when the smoke guide plate is installed, the smoke guide plate is only required to be pushed to rotate, so that the clamping jaw assembly is extruded by the clamping buckle to move to the first position, the smoke guide plate can be installed on the smoke collection cover, and the smoke guide plate is easy and convenient to operate.

When the jack catch subassembly that the extrusion is located the primary importance once more, locking subassembly unblock, jack catch subassembly can slide out the support under the effect of the first piece that resets, and the jack catch can be in the open mode under the effect that the second reset simultaneously for the buckle can break away from the restriction of jack catch, thereby makes the smoke deflector can follow the collection petticoat pipe and dismantle. Therefore, when the smoke guide plate is detached from the smoke collecting cover, only the smoke guide plate needs to be pushed, so that the buckle extrusion jaw component can be operated conveniently and simply.

Simultaneously, promote the smoke deflector for when the buckle extrudeed jack catch subassembly, only need overcome the effort of first piece that resets can. And the effort of the first piece that resets is far less than the gravity of leading cigarette board, consequently, the effort that promotes leading cigarette board is far less than the gravity of leading cigarette board to can make things convenient for leading the installation of cigarette board.

Drawings

The accompanying drawings, which are described herein, serve to provide a further understanding of the invention and constitute a part of this specification, and the exemplary embodiments and descriptions thereof are provided for explaining the invention without unduly limiting it. In the drawings:

fig. 1 is a schematic structural diagram of a range hood in the prior art;

fig. 2 is a schematic structural diagram of a range hood provided by an embodiment of the present invention;

fig. 3 is a schematic structural view of the range hood provided by the present invention when the smoke guide plate is detached from the smoke collecting hood;

fig. 4 is a schematic structural view of the pressing latch when the clamping jaw clamps the buckle in the range hood provided by the present invention;

fig. 5 is a schematic structural view of the pressing latch when the claw is in an open state in the range hood provided by the embodiment of the present invention;

fig. 6 is an exploded schematic view of the pressing latch in the range hood provided by the embodiment of the present invention;

fig. 7 is a schematic view of a hinge mechanism in the range hood according to the embodiment of the present invention;

fig. 8 is an exploded schematic view of an articulated mechanism in the range hood provided by the embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; the specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

The range hood is an electric appliance for kitchen for purifying kitchen environment. The exhaust ventilator is arranged above a kitchen range, can rapidly exhaust the waste gas burnt by the range and the oil fume harmful to human bodies generated in the cooking process, reduces indoor air pollution, purifies air, and has the safety guarantee effects of gas defense and explosion prevention.

The process of the range hood for sucking the oil smoke completely follows the principle of air hydrodynamics: in two adjacent space regions, as long as there is a pressure difference, the gas flows from a place where the pressure is high to a place where the pressure is low. When the range hood is in a working state, air in the rack is exhausted to the outside, so that a negative pressure area with a large pressure difference with the surrounding area is formed in the rack. At this time, the cooking fumes are sucked into the rack by the negative pressure region and discharged to the outside while rising.

Based on this, as shown in fig. 1, the range hood includes a frame 600, a fan assembly 500, and a smoke outlet assembly.

The housing 600 has a rectangular parallelepiped shape, and one sidewall of the housing 600 is connected to a wall of a kitchen so that the housing 600 can be mounted on the wall of the kitchen.

The fan assembly 500 includes a volute 510, an impeller 520 disposed in the volute 510, and a motor 530 for driving the impeller to rotate relative to the volute 520, the volute is fixed on the inner wall of the frame 600, the volute has an air outlet and two air inlets, the two air inlets are disposed oppositely, and the two air inlets are located at two ends of an axial lead of the impeller.

The cigarette subassembly of going out includes connector and tobacco pipe. On the up end of frame 600 was located to the connector, the lower extreme of connector was located the frame, and the lower extreme of connector and the air outlet intercommunication of spiral case 510. The upper end of the connector is positioned outside the frame, and the upper end of the connector is connected with the smoke tube. One end of the smoke tube is connected with the connector, and the other end of the smoke tube can extend out of the kitchen from the wall of the kitchen, so that the air outlet of the volute can be communicated with the outside.

In the process of extracting oil smoke, the control motor 530 drives the impeller 520 to rotate. At this time, the impeller 520 rotates to discharge the air in the housing 600 to the outside through the smoke discharge unit, thereby generating a negative pressure region in the housing 600. The oil smoke can be sucked into the rack 600 by the negative pressure area, then oil-gas separation is carried out under the centrifugal action force of the impeller 520, oil drops are condensed by grease particles and then collected through an oil way, and the purified smoke is discharged outdoors through the smoke outlet assembly.

When the impeller rotates at a high speed, in order to accommodate cooking fumes which cannot be exhausted, referring to fig. 2, a fume collecting hood 100 is generally disposed below the frame 100. The appearance of collection petticoat pipe is the infundibulate, and the less one end of area of collection petticoat pipe 100 is connected with the inlet flue of frame 600, and the great one end of collection petticoat pipe 100 area has the opening for the oil smoke can get into and hold in collection petticoat pipe 100. At this time, the oil smoke can be contained in the smoke collecting cover 100 under the negative pressure, and the phenomenon that a large amount of oil smoke overflows and diffuses is prevented.

Meanwhile, in order to ensure a smoke-caging effect at the opening of the smoke collecting cover, the smoke guide plate 200 is provided at the opening of the smoke collecting cover 100.

Also, in order to facilitate the cleaning of the smoke guide 200, the smoke guide 200 is detachably coupled to the smoke collecting cover 100. At present, the smoke guide plate 200 is detachably connected with the smoke collecting cover 100 mainly through a magnetic steel connection or a snap connection. However, in order to ensure the reliability of the connection between the smoke guide plate 200 and the smoke collecting hood 100, the magnetic force between the magnetic steels or the clamping force between the clamping structures needs to be greater than the gravity of the smoke guide plate 200, and therefore, when the smoke guide plate 200 is disassembled, a user needs to apply an acting force greater than the gravity of the smoke guide plate 200 to disassemble the smoke guide plate 200 from the smoke collecting hood 100, which results in a great difficulty in disassembling the smoke guide plate 200 from the smoke collecting hood 100.

In order to facilitate the disassembly of the smoke guide plate, the utility model provides a range hood. The structure of the range hood is shown in fig. 2-6, and comprises a smoke collecting hood 100, a smoke guide plate 200 and a pressing lock catch.

The smoke guide 200 is hinged to an opening of the smoke collecting hood 100 such that the smoke guide 200 can rotate with respect to the smoke collecting hood 100. It should be understood that the opening of the smoke collecting cover 100 described above should be opposite to the smoke inlet of the frame 600.

The pressing lock catch is used for detachably connecting the smoke guide plate to the smoke collection cover. The press-lock fastener includes a buckle 300 and a card socket 400. The card seat 400 is provided on the fume collecting cover 100. The buckle 300 is arranged on the smoke guide plate 200, so that the smoke guide plate 200 can drive the buckle 300 to rotate synchronously when rotating, and the clamping seat 400 is arranged on the rotating track of the buckle 300, so that the buckle 300 can be clamped with the clamping seat 400 in a matching way when the buckle 300 rotates towards the direction close to the smoke collecting cover 100.

When the clamping seat 400 is matched and clamped with the buckle 300, the smoke guide plate 200 can be installed on the smoke collecting hood 100. When the card holder 400 and the buckle 300 are separated from each other, the smoke guide 200 can be detached from the smoke collecting cover 100.

It should be noted that the buckle 300 is disposed on the side of the smoke guide 200 close to the smoke collecting cover 100. And, in order to ensure the stability of the connection between the smoke guide 200 and the smoke collecting cover 100, one end of the smoke guide 200 is hinged with the smoke collecting cover 100, and the buckle 300 is located at the other end of the smoke guide 200. Of course, the end of the smoke guide plate 200 hinged to the smoke collecting hood 100 and the end of the smoke guide plate 200 provided with the buckle 300 may be adjacent to or opposite to each other. Also, when the end of the smoke guide 200 hinged to the smoke collecting hood 100 is opposite to the end of the smoke guide 200 provided with the buckle 300, the connection between the smoke guide 200 and the smoke collecting hood 100 is most stable.

Specifically, the number of the press locks may be selected according to actual conditions as long as the smoke guide plate 200 can be mounted on the smoke collecting hood 100. For example, the number of the above-mentioned pressing latches is two, and the two pressing latches may be located at the same end portion of the smoke guide plate 200, or may be located at different end portions of the smoke guide plate 200, as long as the smoke guide plate 200 can be stably mounted on the smoke collecting hood 100.

Referring to fig. 2 to 6, the card socket 400 includes a bracket 410, a jaw assembly 420, a first restoring member 430, and a locking assembly 440. Wherein, the bracket 410 is fixed on the fume collecting hood 100, and the bracket 410 is a hollow structure. The jaw assembly 420 is slidably coupled to the bracket 410, and the jaw assembly 420 includes a rotatable jaw 421 and a second restoring member 422 coupled to the jaw 421.

When the jaws 421 are located outside the bracket 410, the second restoring member 422 is used to make the jaws 421 in an open state.

When the buckle 300 presses the jaw assembly 420 into the bracket 410, the jaws 421 are drawn together under the limiting action of the bracket 410 and clamp the buckle 300, so that the buckle and the jaws are clamped with each other. When jaw assembly 420 is squeezed to the first position, the jaws are positioned within the cartridge and locking assembly 440 is able to lock jaw assembly 420. At this time, the locking assembly 440 can limit the jaw assembly 420, and after the pressing force of the buckle 300 is removed, the jaw 421 is prevented from sliding out of the bracket 410 under the action of the first restoring member 430, so that the jaw assembly 420 is kept at the first position. At this time, the jaws 421 maintain the closed state so that the smoke guide panel 200 can be mounted on the smoke collecting cover 100.

When the jaw assembly 420 located at the first position is pressed again, the locking assembly 440 is unlocked, the jaws 421 can be slid out of the bracket 410 by the first restoring member 430, and the jaws 421 can be in an opened state by the second restoring member 422. At this time, the catch 300 can be disengaged from the catch 421, so that the smoke guide plate 200 is detached from the smoke collecting cover 100. It should be noted that, the structures of the locking assembly 440, the first resetting member 430 and the second resetting member 422 can be selected according to actual situations, as long as the locking assembly 440 can lock the latch assembly 420 when the latch assembly 420 moves to the first position, and can unlock the latch assembly when the buckle 300 presses the latch assembly 420 located at the first position again. The first restoring member 430 may be configured to apply a restoring force to the jaw assembly 420 to slide the jaw assembly 420 outward from the bracket 410 when the jaw assembly 420 is in the first position. The second restoring member 422 may be configured to open the latch 421 when the latch 421 is outside the bracket.

When the smoke guide plate 200 of the range hood is installed, one end of the smoke guide plate 200 is hinged to the smoke collecting cover 100, and then the smoke guide plate 200 is pushed to rotate towards the direction close to the smoke collecting cover 100, so that the clamping buckle 300 extrudes the clamping jaw assembly 420 towards the support 410. When the latch assembly 420 moves to the first position under the pressing action of the buckle 300, the force pushing the smoke guide plate 200 is removed. At this moment, the claw 421 is drawn in and blocks the buckle 300 under the effect of the bracket 410, the locking assembly 440 locks the claw assembly 420, and the claw assembly 420 is prevented from sliding out of the bracket 410 under the effect of the first resetting member 430, so that the smoke guide plate 200 is installed on the smoke collecting hood 100, and the operation is simple and convenient.

When the smoke guide 200 needs to be detached from the smoke collecting cover 100, the smoke guide 200 only needs to be pushed again, so that the buckle 300 presses the card seat 400 again. At this time, the locking assembly 440 is unlocked, the jaw assembly 420 can slide out of the bracket 410 under the action of the first resetting piece 430, and the jaw 421 can be in an open state under the action of the second resetting piece 422, so that the buckle 300 can be separated from the jaw 421, and the smoke guide plate 200 can be detached from the smoke collecting hood 100, and the operation is simple.

By the structure of above-mentioned range hood and the dismantlement and the installation of smoke deflector 200 among the range hood, the embodiment of the utility model provides an on the smoke deflector 200 was located to buckle 300, on collection petticoat pipe 100 was located to cassette 400, and cassette 400 was located the rotation orbit of buckle 300 for buckle 300 can extrude cassette 400 when smoke deflector 200 was rotatory. When the latch 300 presses the jaw assembly 420 into the bracket 410, the latch 300 is folded under the action of the position-limiting assembly of the bracket 410 and locks the latch 300, and when the jaw assembly 420 is pressed to the first position, the locking assembly 440 can lock the jaw assembly 420. Therefore, the smoke guide plate 200 can be installed on the smoke collecting cover 100 only by pushing the smoke guide plate 200, so that the buckle 300 extrudes the jaw assembly 420 to move the jaw assembly 420 to the first position, and the operation is simple and convenient.

When the latch 300 presses the jaw assembly 420 located at the first position again, the locking assembly 440 is unlocked, so that the jaw 421 slides out of the bracket 410 under the action of the first restoring member 430, and the jaw 421 is in an open state under the action of the second restoring member 422. Therefore, the smoke guide plate 200 can be detached from the smoke collecting hood 100 only by pushing the smoke guide plate 200 again and pressing the jaw assembly 420 again by the buckle 300, and the operation is simple.

Meanwhile, when the buckle 300 extrudes the jaw assembly 420 located at the first position, only the reset force of the first elastic member needs to be overcome, so that the force required when the buckle 300 extrudes the jaw assembly 420 again is far less than the gravity of the smoke guide plate 200 by pushing the smoke guide plate 200, and the smoke guide plate 200 can be conveniently detached.

As a possible implementation manner, referring to fig. 2 to 6, the card socket 400 further includes a sliding block 450 slidably disposed in the bracket 410, and the claw 421 is hinged to the sliding block 450.

The locking assembly 440 includes a connecting rod 441 and a sliding slot 442 formed in the sliding block 450. A first end of the link 441 is hinged to the bracket 410, and a second end of the link 441 is slidably engaged with the sliding groove 442.

The sliding slot 442 includes a first slot segment 442A, a second slot segment 442B and a third slot segment 442C that are sequentially connected to form a closed loop, and when the buckle 300 presses the slider 450 to slide into the bracket 410, the second end of the connecting rod 441 slides relative to the first slot segment 442A, and the pawl 421 rotates relative to the slider 450 under the action of the bracket 410 to be in the buckling state. When the sliding block 450 slides to the first position, the second end of the connecting rod 441 is engaged with the second slot segment 442B, and the second slot segment 442B can prevent the sliding block 450 from sliding outward of the bracket 410. When the slider 450 located at the first position is pressed again, the second end of the link 441 is engaged with the third slot 442C, which allows the slider 450 to slide outward of the bracket 410. It should be understood that the configurations of the first, second and

third slot segments

442A, 442B, 442C described above may be selected according to the actual circumstances, as long as the second end of the connecting rod 441 is able to slide relative to the first slot segment 442A when the catch 300 squeezes the pawl assembly 420. When the sliding block 450 moves to the first position, the second slot segment 442B can prevent the sliding block 450 from sliding out of the bracket 410; when the slider 450 located at the first position is pressed again, the second end of the connecting rod 441 can allow the slider 450 to move outward from the bracket 410.

At this time, when the latch 300 presses the latch assembly 420, the second end of the connecting rod 441 slides relative to the first slot 442A, so that the slider 450 can slide into the bracket 410 under the pressing of the latch 300, and thus the latch 421 can be driven to move into the bracket 410, so that the latch 421 can be folded to latch the latch 300.

When the slider 450 moves to the first position, the second end of the connecting rod 441 is engaged with the second slot 442B, so that the second slot 442B can prevent the slider 450 from sliding out of the bracket 410, and after the pressing force of the clip 300 is removed, the slider 450 can still be kept at the first position, so that the jaws 421 can be kept at the folded state to clamp the clip 300.

When the sliding block 450 located at the first position is pressed again, the second end of the connecting rod 441 is engaged with the third slot 442C, and the third slot 442C allows the sliding block 450 to slide outward of the bracket 410, so that the sliding block 450 can slide outward of the bracket 410 under the action of the first limiting member. So that the jaws 421 can slide with the slider 450 outward of the bracket 410. When the latch 421 slides out of the bracket 410, the latch 421 is in an open state under the action of the second restoring member 422, so that the clip 300 and the clip seat 400 are disengaged from each other.

Specifically, referring to fig. 5, the upper end of the link 441 is connected to the upper end of the bracket 410, and the lower end of the link 441 is slidably connected to the sliding groove 442.

The first slot segment 442A and the third slot segment 442C both extend from the upper end of the slider 450 to the lower end of the slider 450, one end of the second slot segment 442B is connected with the lower end of the first slot segment 442A, the other end of the second slot segment 442B is connected with the lower end of the third slot segment 442C, and the middle of the second slot segment 442B is recessed in a direction away from the pawl 421.

At this time, when the buckle 300 presses the slider 450 into the bracket 410, the lower end of the link 441 can move from the upper end of the first slot 442A to the lower end of the first slot 442A. When the pressing force of the buckle 300 is removed, the lower end of the connecting rod 441 can move to the middle of the second slot segment 442B along one end of the second slot segment 442B by the first restoring member 430. At this time, since the middle portion of the second groove segment 442B is recessed in a direction away from the jaw 421, the middle portion of the second groove segment 442B can prevent the lower end of the connecting rod 441 from moving relative to the slider 450, so that the second groove segment 442B can prevent the slider 450 from sliding outward of the bracket 410. When the slider 450 located at the first position is pressed again, the connecting rod 441 can move to the other end of the second groove section 442B by the pressing force. At this time, after the pressing force of the clip 300 is removed, the lower end of the link 441 moves from the lower end of the third slot 442C to the upper end of the third slot 442C by the first restoring member 430, so that the slider 450 can slide outward of the bracket 410.

In order to ensure that the sliding block 450 can move towards the bracket 410 under the squeezing action of the buckle 300, a guide groove is arranged in the bracket 410, the guide groove extends along the direction perpendicular to the rotation axis of the claw 421, and the sliding block 450 is in sliding fit with the guide groove, so that the sliding block 450 can extend along the direction perpendicular to the rotation axis of the claw 421 under the squeezing action of the buckle 300, and the claw 421 can be conveniently folded by the bracket 410.

Illustratively, referring to fig. 4 to 6, the structure of the latch 421 can be selected according to actual situations. For example, the latch 421 includes a first rotating arm and a second rotating arm, and one end of the first rotating arm and one end of the second rotating arm are both hinged to the slider 450; the first and second rotating arms are opened to place the jaw 421 in an opened state; the first and second rotating arms are closed to put the jaw 421 in a closed state. At this time, the first rotating arm and the second rotating arm can clamp the buckle 300, and simultaneously, the structure of the claw 421 can be simplified, and the production cost is saved.

Specifically, referring to fig. 6, in order to facilitate the installation of the first rotating arm, the second rotating arm and the second restoring member 422, the second restoring member 422 includes a first torsion spring and a second torsion spring, and the slider 450 is provided with a first rotating shaft and a second rotating shaft.

One end of the first rotating arm is sleeved on the first rotating shaft, the wire spool of the first torsion spring is sleeved on the first rotating shaft, one end of the first torsion spring is abutted against the sliding block 450, and the other end of the first torsion spring is fixedly connected with the first rotating arm.

One end of the second rotating arm is also sleeved on the second rotating shaft, the wire spool of the second torsion spring is sleeved on the second rotating shaft, one end of the second torsion spring is abutted against the sliding block 450, and the other end of the second torsion spring is fixedly connected with the second rotating arm.

At this time, when the buckle 300 presses the slider 450 into the bracket 410, the first rotating arm can press the first torsion spring to rotate in a direction close to the second rotating arm under the action of the bracket 410, and the second rotating arm can press the second torsion spring to rotate in a direction close to the first rotating arm under the action of the bracket 410, so that the first rotating arm and the second rotating arm can be buckled. When the slider 450 is moved to the first position, the first torsion spring applies an acting force to the first rotating arm away from the second rotating arm, and the second torsion spring applies an acting force to the second rotating arm away from the first rotating arm. After the sliding block 450 moves out of the bracket 410, the first rotating arm can be reset under the action of the first torsion spring, and the second rotating arm can be reset under the action of the second torsion spring, so that the first rotating arm and the second rotating arm are in an open state.

As an embodiment, referring to fig. 5 and 6, the first reset element 430 is a spring, the spring is parallel to the moving direction of the latch 421, one end of the spring is fixedly connected to the bracket 410, and the other end of the spring is fixedly connected to the slider 450. At this time, when the jaw 421 moves inward into the bracket 410 by the catch 300, the spring can be compressed, so that the spring can apply a first elastic restoring force to the slider 450. After the locking assembly 440 is unlocked, the latch arms in the latch 421 can move out of the bracket 410 under the action of the first elastic restoring force.

And, because range hood's operating condition generally is high temperature state, and the utility model discloses the high temperature resistance performance of the spring that the embodiment adopted is higher, and range hood uses the back for a long time, and first piece 430 that resets still can apply to jack catch assembly 420 outside gliding reset force to support 410.

Illustratively, referring to fig. 6, the bracket 410 includes a bracket body 411 and a cover plate 412, and the cover plate 412 is elastically connected to the bracket body 411. At this time, the cover plate 412 can move relative to the holder body 411, and can provide a relief space for the rotation of the second end of the connecting rod 441 between the first and

second groove segments

442A and 442B, the second and third groove segments 442B and 442C, and the third and first groove segments 442C and 442A, and facilitate the movement of the second end of the connecting rod 441 between the first and

second groove segments

442A and 442B, the second and third groove segments 442B and 442C, and the third and first groove segments 442C and 442A.

As a possible implementation, referring to fig. 5, the support 410 includes a support body 411 and a guide cylinder 413, the guide cylinder 413 is located between the support body 411 and the jaws 421, the axis of the guide cylinder 413 is parallel to the rotation axis of the jaws 421, and the guide cylinder 413 is rotatable relative to the support 410. When the latch 421 moves into the bracket 410 under the action of the buckle 300, the latch 421 can be folded under the limit action of the guide cylinder 413. When the guide cylinder 413 is used for collecting the clamping jaw 421, rolling friction is formed between the guide cylinder 413 and the clamping jaw 421, so that the friction force of the rolling friction between the guide cylinder 413 and the clamping jaw 421 is reduced, the loss between the clamping jaw 421 and the guide cylinder 413 can be reduced, the service life of the pressing lock catch is prolonged, and the connection stability of the smoke guide plate 200 and the smoke collecting cover 100 in the range hood is improved.

Specifically, referring to fig. 5, the bracket body 411 has an opening, and the latch 421 extends out of the bracket 410 through the opening. The guide cylinder 413 is located at the opening.

As an embodiment, referring to fig. 6, the latch 300 includes a connecting seat 310, a connecting rod 320 and a latch protrusion 330, the connecting seat 310 is fixed on the smoke guide plate 200, the connecting rod 320 is connected between the latch protrusion 330 and the connecting seat 310, and when the latch 421 is in the first position, the latch 421 latches the latch protrusion 330.

Specifically, the connecting seat 310 is a hollow structure.

Meanwhile, referring to fig. 2, 7 and 8, the above-mentioned smoke guide plate 200 is hinged with the smoke collecting cover 100 by a hinge mechanism 500; the hinge mechanism 500 comprises a shaft hole 510 arranged on the smoke collecting cover 100 and a rotating shaft 520 arranged on the smoke guide plate 200, and the rotating shaft 520 is parallel to the smoke guide plate 200; the rotating shaft 520 is disposed in the shaft hole 510, and the rotating shaft 520 is rotatable with respect to the shaft hole 510. At this time, when the smoke guide plate 200 is hinged to the smoke collecting cover 100, the rotating shaft 520 is only required to be installed in the shaft hole 510.

For example, referring to fig. 8, in order to ensure that the difficulty of processing the smoke collecting cover 100 is reduced, the hinge mechanism 500 further includes a hinge support 530, and the shaft hole 510 is opened on the hinge support 530. At this time, the shaft hole 510 does not need to be formed on the smoke collecting cover 100, and only the hinged support 530 with the shaft hole 510 needs to be fixed on the smoke collecting cover 100, so that the processing difficulty of the smoke collecting cover 100 can be greatly reduced.

Specifically, the hinge support 530 is provided with a long opening, the long opening extends along the extending direction of the shaft hole 510, and the long opening is communicated with the shaft hole 510 and faces the smoke collecting hood 100. At this time, the rotating shaft 520 is extended into the shaft hole 510 from the long opening, that is, the rotating shaft is matched with the shaft hole 510, so that the smoke guide plate 200 can rotate relative to the smoke collecting cover 100. When the smoke guide plate 200 needs to be detached from the smoke collecting hood 100, the smoke guide plate 200 can be detached from the smoke collecting hood 100 only by taking the rotating shaft 520 out of the long opening.

In the foregoing description of embodiments, the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A range hood, comprising:

a smoke collecting hood;

the smoke guide plate is hinged to the opening of the smoke collecting cover;

the pressing lock catch comprises a buckle and a clamping seat; the buckle is arranged on the smoke guide plate; the clamping seat is arranged on the smoke collection cover and is positioned on the rotating track of the buckle; the clamping seat comprises a support, a jaw assembly, a first resetting piece and a locking assembly, the jaw assembly is connected with the support in a sliding mode, and the jaw assembly comprises a rotatable jaw and a second resetting piece connected with the jaw; when the claw is positioned outside the bracket, the claw is in an open state;

when the buckle extrudes the jaw assembly into the bracket, the jaw is folded under the limiting action of the bracket and clamps the buckle, and when the jaw assembly is extruded to a first position, the jaw is positioned in the bracket, and the locking assembly can lock the jaw assembly; when the claw assembly located at the first position is squeezed again, the locking assembly is unlocked, the claw can slide out of the support under the action of the first reset piece, and the claw can be in an opening state under the action of the second reset piece.

2. The range hood of claim 1, wherein the clamping seat further comprises a sliding block, the sliding block is slidably disposed in the bracket, and the clamping jaw is hinged to the sliding block;

the locking component comprises a connecting rod and a sliding groove arranged on the sliding block, the first end of the connecting rod is hinged with the bracket, the second end of the connecting rod is in sliding fit with the sliding groove,

the sliding groove comprises a first groove section, a second groove section and a third groove section which are sequentially connected to form a closed ring, and when the sliding block slides to the first position, the second end of the connecting rod slides relative to the first groove section; when the sliding block slides to the first position, the second end of the connecting rod is matched with the second groove section, and the second groove section can prevent the sliding block from sliding outwards the bracket; when the slider in the first position is squeezed again, the second end of the link engages with the third channel section, which allows the slider to slide out of the bracket.

3. The range hood of claim 2, wherein the upper end of the connecting rod is connected with the upper end of the bracket, and the lower end of the connecting rod is slidably connected with the chute;

the first groove section and the third groove section are extended from the upper end of the sliding block to the lower end of the sliding block, one end of the second groove section is connected with the lower end of the first groove section, the other end of the second groove section is connected with the lower end of the third groove section, and the middle of the second groove section is sunken towards the direction far away from the clamping jaw.

4. The range hood of claim 2, wherein a guide slot is provided in the bracket, the guide slot extends in a direction perpendicular to the axis of rotation of the pawl, and the slider is in sliding engagement with the guide slot.

5. The range hood of claim 2, wherein the jaw comprises a first rotating arm and a second rotating arm, and one end of the first rotating arm and one end of the second rotating arm are both hinged to the sliding block; the first rotating arm and the second rotating arm are opened to make the clamping jaws in an opened state; the first and second rotating arms are closed to place the jaws in a closed state.

6. The range hood of claim 5, wherein the second restoring member comprises a first torsion spring and a second torsion spring;

a first rotating shaft and a second rotating shaft are arranged on the sliding block, and one end of the first rotating arm is sleeved on the first rotating shaft; the wire spool of the first torsion spring is sleeved on the first rotating shaft, one end of the first torsion spring is abutted against the sliding block, and the other end of the first torsion spring is fixedly connected with the first rotating arm;

one end of the second rotating arm is sleeved on the second rotating shaft, the wire spool of the second torsion spring is sleeved on the second rotating shaft, one end of the second torsion spring is abutted to the sliding block, and the other end of the second torsion spring is fixedly connected with the second rotating arm.

7. The range hood according to any one of claims 2 to 6, wherein the first returning member is a spring, the spring is parallel to the moving direction of the slider, one end of the spring is fixedly connected to the bracket, and the other end of the spring is fixedly connected to the slider.

8. The range hood of any one of claims 2 to 6, wherein the bracket comprises a bracket body and a cover plate, and the cover plate is elastically connected with the bracket body.

9. The range hood according to any one of claims 1 to 6, wherein the bracket comprises a bracket body and a guide cylinder, the guide cylinder is located between the bracket body and the clamping jaw, the axis of the guide cylinder is parallel to the rotation axis of the clamping jaw, and the guide cylinder can rotate relative to the bracket.

10. The range hood of any one of claims 1 to 6, wherein the buckle comprises a connecting seat, a connecting rod and a clamping protrusion, the connecting seat is fixed on the smoke guide plate, the connecting rod is connected between the clamping protrusion and the connecting seat, and when the clamping jaw is located at the first position, the clamping protrusion is clamped by the clamping jaw.