CN111536565B

CN111536565B - Smoke guide plate mounting device and range hood with same

Info

Publication number: CN111536565B
Application number: CN202010398801.3A
Authority: CN
Inventors: 陈源; 叶丰
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2020-05-12
Filing date: 2020-05-12
Publication date: 2021-08-20
Anticipated expiration: 2040-05-12
Also published as: CN111536565A

Abstract

The invention discloses a smoke guide plate mounting device which comprises a smoke guide plate and a first connecting assembly arranged on the smoke guide plate, wherein the first connecting assembly comprises a hanger assembly arranged on the smoke guide plate and a hook assembly arranged on an external mounting base, the hook assembly comprises a hook fixing box used for being fixed with the external mounting base and a hook with one end rotatably connected with the hook fixing box, a bolt is arranged at the other end of the hook and can be matched with the hanger assembly to be inserted into the corresponding end part of the hook fixing box to lock the hook and the hook fixing box, the hook keeps a trend of rotating into the hook fixing box so as to be hidden in the hook fixing box, and the bolt keeps a trend of leaving the hook fixing box so as to unlock the hook and the hook fixing box. Also discloses a range hood applying the smoke guide plate mounting device.

Description

Smoke guide plate mounting device and range hood with same

Technical Field

The invention relates to an oil fume purification device, in particular to a smoke guide plate installation device and a range hood applying the smoke guide plate installation device.

Background

The range hood has become one of the indispensable kitchen household electrical appliances in modern families. The range hood works by utilizing the fluid dynamics principle, sucks and exhausts oil smoke through a centrifugal fan arranged in the range hood, and filters partial grease particles by using a filter screen. The centrifugal fan comprises a volute, an impeller arranged in the volute and a motor driving the impeller to rotate. When the impeller rotates, negative pressure suction is generated in the center of the fan, oil smoke below the range hood is sucked into the fan, accelerated by the fan and then collected and guided by the volute to be discharged out of a room.

The top-suction type range hood adopts an oil smoke rising principle, a negative pressure area is generated right above a cooking bench to suck and exhaust naturally rising oil smoke generated during cooking, and the range hood has the advantages of fashionable and concise appearance, larger air volume, larger space and capability of capturing the oil smoke far away from the cooking bench, and has the defects that the installation height is far away from the cooking bench, and the oil smoke above a pot is easy to be disturbed by ambient air to cause the escape of the oil smoke to the periphery under the cooking state with small oil smoke volume, so that the oil smoke suction effect is poor.

Therefore, a smoke guide plate is generally arranged below an air inlet of the top-suction range hood to form an annular suction structure, and the oil smoke suction effect is improved by utilizing the coanda effect. The top suction type range hood with the smoke guide plate disclosed in the chinese patent with the application number of 201410419676.4 comprises a body, a smoke collecting hood and the smoke guide plate, wherein the smoke collecting hood is connected with the body, a fan is arranged in the body, an air inlet is arranged on the smoke collecting hood, the smoke guide plate is arranged right opposite to the air inlet of the smoke collecting hood and fixed on the smoke collecting hood through a bracket or a buckle, and a distance exists between the smoke guide plate and the smoke collecting hood to form a smoke channel.

The existing range hood has the structure that the smoke guide plate is mostly fixed in the smoke collection cavity through two rotatable hooks and two buckles, and components such as a hanging rack latch of a fixed structure of the smoke guide plate are hung on the smoke collection cavity and cannot be disassembled. The user needs to bypass these four parts when cleaning the smoke collection chamber, resulting in inconvenience in cleaning and easy oil deposit in corners.

In addition, still have one kind and lead the scheme that the cigarette board rear side card leaned on the wall downside at the collection smoke chamber, reduce two with fixed clean barrier in the collection smoke chamber, nevertheless the cigarette board of this kind of scheme can't hang under the collection smoke chamber, and the distance requirement of cigarette board rear side and wall is very little when fixed, and the wind channel design is limited.

Disclosure of Invention

The first technical problem to be solved by the present invention is to provide a smoke guide plate installation device, which is convenient for disposing the smoke guide plate during cleaning, in view of the above-mentioned shortcomings of the prior art.

The second technical problem to be solved by the invention is to provide a range hood with the installation device, which is convenient for cleaning the smoke collection cavity.

The technical scheme adopted by the invention for solving the first technical problem is as follows: the utility model provides a smoke deflector installation device, includes smoke deflector and sets up the first coupling assembly on smoke deflector, first coupling assembly is including setting up the couple subassembly on the rack subassembly on smoke deflector and setting up the installation basis outside, its characterized in that: the couple subassembly including be used for with the fixed box of couple and one end of outside installation basis fixed and the couple of hook of being connected with the fixed box rotation of couple, be provided with the bolt on the other end of couple, the bolt can with the cooperation of hanger subassembly and insert the fixed box locking of couple and couple in the corresponding tip of the fixed box of couple, the couple keeps rotatory to the fixed box of couple in to hide the trend in the fixed box of couple, thereby the bolt keeps leaving the fixed box of couple and makes the trend of couple and the fixed box unblock of couple.

Preferably, in order to facilitate the cooperation between the hanger assembly and the bolt, a first pin hole is formed in the other end of the hook, a partition plate is further arranged in the hook, a hanging hole communicated with the outside is defined between the side walls of the partition plate and the hook, a space is formed between the partition plate and the first pin hole, a second pin hole is formed in the position, close to the first pin hole, of the partition plate, a third pin hole is formed in the position, corresponding to the first pin hole, of the hook fixing box, when the hanger assembly is hung in the hanging hole and applies force to the bolt, the bolt can simultaneously penetrate through the first pin hole, the second pin hole and the third pin hole to lock the hook and the hook fixing box, and when the hanger assembly leaves the bolt, the bolt can move in the hanging hole to separate from the third pin hole to unlock the hook and the hook fixing box.

In order to keep the bolt in the unlocking trend, a pressure spring which keeps the bolt away from the third pin hole and tends to move towards the hanging hole is sleeved on the periphery of the bolt.

In order to facilitate the arrangement of a pressure spring, a flange is formed on the peripheral wall of the plug pin and is located between the first pin hole and the second pin hole, and the pressure spring is abutted between the flange and the side wall of the hook, wherein the first pin hole is formed in the side wall.

Preferably, the compression spring force of the compression spring is Ft, the maximum friction force borne by the latch is Fm, and 1.2 Fm < Ft < 2 Fm is satisfied.

Preferably, be convenient for the connection of hanger subassembly and smoke deflector and the cooperation of couple subassembly, hanger subassembly includes the stores pylon of being connected with the smoke deflector and sets up the first pivot of keeping away from smoke deflector one end at the stores pylon, first pivot can insert in the hanging hole with the bolt cooperation.

Preferably, in order to facilitate the hook to be hidden in the hook fixing box, the hook is rotatably connected with the hook fixing box through a second rotating shaft, and a torsion spring is arranged on the second rotating shaft, so that the hook keeps the trend of rotating towards the inside of the hook fixing box.

Preferably, the torsion moment of the torsion spring is M0, the friction moment of the second rotating shaft is M1, the moment of the hook gravity acting on the second rotating shaft is M2, and 1.2 × (M1+ M2) < M0 ≦ M1+2 ≦ M2 is satisfied.

The technical scheme adopted by the invention for solving the second technical problem is as follows: the utility model provides an be applied as above range hood of leading cigarette board installation device, includes the collection petticoat pipe as outside installation basis, be formed with the air intake on the collection petticoat pipe, lead the cigarette board and set up in the air intake below, its characterized in that: the exhaust fume collecting hood is located at the peripheral position of the air inlet and is provided with a mounting hole, and the hook assembly upwards penetrates through the mounting hole and is hidden in the exhaust fume collecting hood.

Preferably, the smoke guide plate mounting device further comprises a second connecting piece, the second connecting piece is located on the front side of the first connecting piece, the front end of the hook is connected with the hook fixing box, and the rear end of the hook is provided with a bolt.

Compared with the prior art, the invention has the advantages that: by arranging the hook fixing box and the hook capable of rotating relative to the hook fixing box, the fixing can be realized by locking the hook and the hook fixing box when the smoke guide plate is installed, and the smoke guide plate can be in a hanging state when being cleaned, so that the cleaning of a user is facilitated, and the problem that the greasy smoke guide plate is not placed everywhere is solved; the couple adopts hidden design, and the smoke deflector is pulled down and is all hidden in collection petticoat pipe and roof clearance when installing well, and former state keeps hiding through torsional spring elasticity, and latter state keeps hiding through the bolt chucking, and the couple is fixed the box and can be hidden in collection petticoat pipe again for in the collection petticoat pipe of collection petticoat pipe the collection flue chamber, after the smoke deflector is demolishd completely, the inboard is levelly and smoothly not have the arch, and convenience of customers cleans collection petticoat pipe.

Drawings

Fig. 1 is a schematic view of a smoke guide plate of a range hood according to an embodiment of the present invention;

fig. 2 is a sectional view showing a state in which a smoke guide plate of the range hood according to the embodiment of the present invention is installed;

fig. 3 is a schematic view of a smoke guide plate mounting device of the range hood according to the embodiment of the invention;

fig. 4 is a sectional view of a smoke guide plate mounting device of the range hood according to the embodiment of the present invention;

fig. 5 is an exploded view of the hook assembly of the smoke guide plate mounting device of the range hood according to the embodiment of the present invention;

fig. 6 is a schematic view of a suspended state of a smoke guide plate of the range hood according to the embodiment of the invention;

FIG. 7 is a schematic view of the smoke deflector mounting apparatus of FIG. 6;

FIG. 8 is a cross-sectional view of the smoke deflector mounting arrangement of FIG. 6;

fig. 9 is a schematic view of a state that a smoke guide plate of the range hood of the embodiment of the invention is removed;

fig. 10 is a cross-sectional view of the hook assembly of the smoke guide mounting apparatus of fig. 9.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar functions.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present invention and to simplify the description, but are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and that the directional terms are used for purposes of illustration and are not to be construed as limiting, for example, because the disclosed embodiments of the present invention may be oriented in different directions, "lower" is not necessarily limited to a direction opposite to or coincident with the direction of gravity. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

Referring to fig. 1 and 2, a range hood, which is a top-suction range hood, includes a smoke collecting hood 1, and a fan frame 2 disposed above the smoke collecting hood 1, wherein a fan system (not shown) can be disposed in the fan frame 2. An air inlet 11 is formed on the smoke collecting cover 1, and is used for enabling the oil smoke to enter the fan frame 2 through the air inlet 11 and then to be discharged to a public flue or a room through a fan system. An upwards sunken smoke collecting cavity 12 is formed on the inner side of the smoke collecting cover 1, and the air inlet 11 is positioned at the top of the smoke collecting cavity 12.

The lower part of the air inlet 11 is provided with a smoke guide plate 3, and the smoke guide plate 3 is detachably connected with the smoke collecting cover 1 through a mounting device. The mounting device comprises a first connection member 4 and a first connection member 5. First connecting elements 4 adopts the mode realization connection that articulates, and it has two sets ofly, sets up respectively in the left and right sides of leading cigarette board 3, can hang leading cigarette board 3. The first connecting members 5 may be snap-fit connections commonly used in the art, and have two sets, respectively disposed at the left and right sides of the smoke guide 3. The first connecting member 4 is located at the rear side of the second connecting member 5, preferably, the first connecting member 4 is located near the rear end of the smoke guide plate 3, and the first connecting member 5 is located near the front end of the smoke guide plate 3. The first connecting assembly 4 and the second connecting assembly 5 are connected to the fume collecting hood 1 at the position around the air inlet 11.

The first connecting assembly 4 comprises a hanger assembly 41 arranged on the smoke guide plate 3 and a hook assembly 42 arranged on the smoke collecting cover 1, the smoke collecting cover 1 is arranged at the peripheral position of the air inlet 11 and is provided with a mounting hole 13, and the hook assembly 42 can upwards penetrate through the mounting hole 13 so as to be hidden in the smoke collecting cover 1.

Referring to fig. 3 to 5, the hanger assembly 41 includes a hanger 411 and a first rotating shaft 412, wherein the hanger 411 is connected to the smoke guide plate 3, the first rotating shaft 412 is disposed at an end of the hanger 411 away from the smoke guide plate 3, and when the smoke guide plate 3 is in an installation state, the first rotating shaft 412 extends in a left-right direction.

The hook assembly 42 includes a hook fixing box 421, a hook 422, a torsion spring 423, a second rotation shaft 424, a hook cover 425, a latch 426, and a compression spring 427. The front and rear sides of the hook fixing box 421 are respectively connected and fixed with the smoke collecting hood 1 through screws 4211. The hook fixing case 41 is opened toward one side of the smoke guide 3 (downward side in the attached state), and corresponds to the attachment hole 13. One end of the hook 422 is rotatably connected to the hook fixing box 421 via a second rotating shaft 424, and the extending direction of the second rotating shaft 424 is the same as that of the first rotating shaft 412. The torsion spring 423 is provided on the second rotating shaft 424, and applies a force to the second rotating shaft 424, so that the hook 422 is away from the other end connected with the second rotating shaft 424, and keeps rotating towards the hook fixing box 421 when the smoke guide plate 3 is not hung, thereby hiding the trend in the hook fixing box 421.

The other end of the hook 422 far away from the second rotating shaft 424 is provided with a first pin hole 4221, a partition plate 4224 is arranged in the hook 422 and located between the second rotating shaft 424 and the first pin hole 4221, a hanging hole 4222 is defined between the partition plate 4224 and the bottom of the hook 422, and the bottom of the hook 422 is provided with an inlet 4226, so that the hanging hole 4222 is communicated with the outside of the hook 422, and the first rotating shaft 412 enters the hanging hole 4222 from the inlet 4226. In the installed state of the smoke guide 3, in this embodiment, the second shaft 424 is located at the front end of the hook 422, and the first pin hole 4221 is opened at the rear end of the hook 422. The hanging hole 4222 is used for matching with the first rotating shaft 412 of the hanger assembly 41, and in order to facilitate the installation and removal of the first rotating shaft 412, a guide surface 4223 is formed by extending one end of the hanging hole 4222 facing the installation hole 13 into the hook 422 and gradually inclining towards the first pin hole 4221. The partition plate 4224 is spaced from the first pin hole 4221, and a second pin hole 4225 is formed in the partition plate 4224 at a position close to the first pin hole 4221. A third pin hole 4212 is formed at a position corresponding to the first pin hole 4221 at the rear end (rear end in the mounted state) of the hook fixing box 421. The centers of the first, second and

third pin holes

4221, 4225 and 4212 are preferably located on the same line so that the latch 426 can pass through the three pin holes simultaneously. The latch 426 passes through the second pin hole 4225, the first pin hole 4221 and the third pin hole 4212, thereby enabling to lock the hook 422 and the hook fixing box 421. The compression spring 427 is sleeved on the second bolt 4212, a flange 4261 is further formed on the outer peripheral wall of the second bolt 4212, the flange 4261 is located between the first pin hole 4221 and the second pin hole 4225, the compression spring 427 abuts between the flange 4261 and the side wall of the hook 422, wherein the side wall is provided with the first pin hole 4221, the bolt 426 tends to penetrate into the hanging hole 4222, the end portion of the bolt 426 can be retracted into the hook fixing box 421, and therefore the hook 422 and the hook fixing box 421 can be unlocked. The hook cover 425 covers the side surface of the hook 422, is left or right in the mounted state, and is fixed to the hook 422 by a buckle and a screw to restrict the positions of the latch 426 and the compression spring 427.

The elasticity of the torsion spring 423 needs to satisfy the requirement of overcoming the gravity moment of the whole hook assembly 42 and the friction moment of the rotating position, so that the hook 422 can be retracted into the hook fixing box 421 by the torsion spring 423 when no smoke guide plate 3 exists. The rebound velocity is kept as small as possible under the condition that the condition is met so as to avoid collision caused by too high rebound velocity. This force is much less than the weight of the smoke guide 3, both in terms of physical mass and material considerations, ensuring that the hook 422 hangs substantially vertically when the smoke guide 3 is suspended.

The output of the torsion spring 423 is a torque, assuming that M0, the friction torque measured on the second rotating shaft 424 is M1, and the torque exerted by the gravity of the hook 422 on the second rotating shaft 424 is M2, so the torque range of the torsion spring is suggested as follows: 1.2 (M1+ M2) < M0 ≤ M1+ 2M 2, which ensures that the torque can retract the hook 422 (setting a safety factor of 1.2), and the retraction speed of the hook 422 is not so high that the hook 422 impacts other parts to generate abnormal sound.

The spring force of the compression spring 427 is relatively small, so long as it is sufficient to overcome the friction of the latch 426 and ensure that the latch 426 is retracted in the hook 422 in the state without the smoke guide 3. As small as possible to satisfy this condition. In the state of installing the smoke guide plate 3, the compression of the compression spring 427 is realized by the pushing force during installation, and if the force of the compression spring 427 is too large, the hand feeling of installing the smoke guide plate 3 is poor.

The pressure spring force is assumed to be Ft, and the maximum friction force exerted on the plug 426 in the moving process is measured to be Fm, so that the range of the force of the pressure spring 427 is suggested to be 1.2 & ltFm & lt, Ft & lt, 2 & ltFm, and the range ensures that the plug 426 can be retracted under the action of the pressure spring 427 force, and the poor hand feeling is avoided when the smoke guide plate 3 is installed due to too tight pressure.

When the smoke guide plate 3 is installed, the connection of the second connecting piece 5 on the front side is firstly completed, then the rear side of the smoke guide plate 3 is connected, in the process that the rear side of the smoke guide plate 3 is turned upwards, the first rotating shaft 412 on the smoke guide plate 3 slides into the hanging hole 4222 along the guide surface 4223 and pushes the bolt 426 backwards, and the bolt 426 compresses the pressure spring 427, moves backwards to penetrate into the third pin hole 4212 of the hook fixing box 421, locks the hook 422 and the hook fixing box 421, so that the hook 422 cannot rotate downwards to bear the weight of the smoke guide plate 3. When the smoke guide plate 3 is detached, the second connecting assembly 5 on the front side is detached first, so that the smoke guide plate 3 can move forward, the latch 426 moves forward under the action of the compression spring 427 to be away from the third pin hole 4212 of the hook fixing box 421, so that the hook 422 is no longer locked with the hook fixing box 421, until the elasticity of the torsion spring 423 is insufficient to support the smoke guide plate 3, the hook 422 swings out of the hook fixing box 421 downwards around the second rotating shaft 424, and the suspension of the smoke guide plate 3 is realized, see fig. 6 to 8.

If the smoke guide plate 3 is completely removed, the hook 422 is retracted into the hook fixing box 421 by the action of the torsion spring 423, see fig. 9 and 10, so that the surface of the smoke collection chamber 12 is as flat as possible to ensure the convenience of cleaning the smoke collection chamber 12.

Claims

1. The utility model provides a smoke deflector installation device, includes smoke deflector (3) and sets up first connecting assembly (4) on smoke deflector (3), first connecting assembly (4) are including setting up hanging frame subassembly (41) on smoke deflector (3) and setting up couple subassembly (42) on the installation basis of outside, its characterized in that: the hook component (42) comprises a hook fixing box (421) used for being fixed with an external installation base and a hook (422) with one end rotatably connected with the hook fixing box (421), a plug pin (426) is arranged at the other end of the hook (422), the plug pin (426) can be matched with the hook component (41) and inserted into the corresponding end of the hook fixing box (421) to lock the hook (422) and the hook fixing box (421), the hook (422) keeps a trend of rotating into the hook fixing box (421) and hiding in the hook fixing box (421) under an installation state and a complete disassembly state of the smoke guide plate (3), and the plug pin (426) keeps a trend of leaving the hook fixing box (421) and unlocking the hook (422) and the hook fixing box (421).

2. The smoke guide plate mounting apparatus of claim 1 wherein: a first pin hole (4221) is formed in the other end of the hook (422), a partition plate (4224) is further arranged in the hook (422), a hanging hole (4222) communicated with the outside is defined between the partition plate (4224) and the side wall of the hook (422), a space is formed between the partition plate (4224) and the first pin hole (4221), a second pin hole (4225) is formed in the partition plate (4224) and is close to the first pin hole (4221), a third pin hole (4212) is formed in the hook fixing box (421) and corresponds to the first pin hole (4221), when the hanging frame component (41) is hung in the hanging hole (4222) to apply force to the bolt (426), the bolt (426) can simultaneously penetrate through the first pin hole (4221), the second pin hole (4225) and the third pin hole (4212) to lock the hook (422) and the hook fixing box (421), and when the hanging frame component (41) leaves the bolt (426), the bolt (426) can move towards the hanging hole (4222) to be separated from the third pin hole (4212) so as to unlock the hook (422) and the hook fixing box (421).

3. The smoke guide plate mounting apparatus of claim 2 wherein: and a pressure spring (427) for keeping the bolt (426) away from the third pin hole (4212) and moving towards the hanging hole (4222) is sleeved on the periphery of the bolt (426).

4. The smoke guide plate mounting apparatus of claim 3 wherein: a flange (4261) is formed on the outer peripheral wall of the plug pin (426), the flange (4261) is positioned between the first pin hole (4221) and the second pin hole (4225), and the pressure spring (427) is abutted between the flange (4261) and the side wall of the hook (422) provided with the first pin hole (4221).

5. The smoke guide plate mounting apparatus of claim 3 wherein: the compression spring force of the compression spring (427) is Ft, the maximum friction force borne by the latch (426) is Fm, and 1.2 & ltFt & lt 2 & ltFm is satisfied.

6. The smoke guide plate mounting apparatus of claim 2 wherein: the hanging rack assembly (41) comprises a hanging rack (411) connected with the smoke guide plate (3) and a first rotating shaft (412) arranged at one end, far away from the smoke guide plate (3), of the hanging rack (411), and the first rotating shaft (412) can be inserted into the hanging hole (4222) to be matched with the bolt (426).

7. The smoke guide plate mounting apparatus of claim 1 wherein: the hook (422) is rotatably connected with the hook fixing box (421) through a second rotating shaft (424), and a torsion spring (423) is arranged on the second rotating shaft (424), so that the hook (422) keeps the trend of rotating towards the hook fixing box (421).

8. The smoke guide plate mounting apparatus of claim 7 wherein: the torsion moment of the torsion spring (423) is M0, the friction moment of the second rotating shaft (424) is M1, the moment of the gravity of the hook (422) acting on the second rotating shaft (424) is M2, and the condition that 1.2 x (M1+ M2) < M0 ≦ M1+2 x M2 is met.

9. A range hood applying the smoke guide plate installation device according to any one of claims 1-8, comprising a smoke collecting hood (1) as an external installation base, wherein an air inlet (11) is formed on the smoke collecting hood (1), the smoke guide plate (3) is arranged below the air inlet (11), and the range hood is characterized in that: the exhaust fume collecting hood (1) is located at the peripheral position of the air inlet (11) and is provided with a mounting hole (13), and the hook assembly (42) upwards penetrates through the mounting hole (13) and is hidden in the exhaust fume collecting hood (1).

10. The range hood of claim 9, wherein: the smoke guide plate mounting device further comprises a second connecting piece (5), the second connecting piece (5) is located on the front side of the first connecting piece (4), the front end of the hook (422) is connected with the hook fixing box (421), and the rear end of the hook (422) is provided with a bolt (426).