CN111006271B

CN111006271B - Fume exhaust fan

Info

Publication number: CN111006271B
Application number: CN202010006586.8A
Authority: CN
Inventors: 朱逸; 袁柯铭
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2020-01-03
Filing date: 2020-01-03
Publication date: 2022-03-18
Anticipated expiration: 2040-01-03
Also published as: CN111006271A

Abstract

The invention discloses a hook component, which comprises a hanging plate and a hook for hanging an object, and is characterized in that: the hook is rotatably connected with the hanging plate, and the hook assembly further comprises a driving mechanism which can drive the hook to rotate the hanging plate so as to lift or reduce the hanging object. Also discloses a range hood applying the hook assembly. Compared with the prior art, the invention has the advantages that: the hook has the function of automatic turning, so that the hooked object can be lifted during installation, the gap between the hooked object and the installation foundation can be eliminated during the lifting process, and seamless installation is realized; the roller is arranged on the hanging hole of the rear plate of the range hood body, so that the roller is limited in a space enclosed by the rear plate, the hook and the supporting seat in an on-hook state, the displacement of the range hood is limited, a good anti-vibration effect is achieved, and the whole range hood body can be prevented from falling off.

Description

Fume exhaust fan

Technical Field

The invention relates to a mechanical connecting piece, in particular to a hook component and a range hood applying the hook component.

Background

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 up-draft range hood is usually installed right above a kitchen range, and most of the on-hook structures of the range hoods on the market at present adopt a traditional mode, namely a hook is installed on a wall body, and an on-hook hole is designed on the whole machine, so that the range hood can be stably hung on the wall body. The utility model discloses a range hood stores pylon like that application number is 200920052014.2's chinese utility model patent discloses possesses high security anti-tear couple structure, but the mounting means of this type of couple exists and lifts the process of hanging down again, makes to have a space between lampblack absorber and the wall cabinet, influences the matching of range hood and cupboard, installs and use inconvenient and not pleasing to the eye.

In order to eliminate the gap, a common solution is to install the range hood first, and then match the wall cabinet according to the installation height of the range hood, so as to ensure seamless installation between the wall cabinet and the range hood. However, in this installation method, once the range hood fails or is cleaned, the range hood needs to be disassembled, and because the range hood and the cabinet are installed seamlessly, and the range hood needs to be disassembled by an upward lifting process, people are forced to disassemble the wall cupboard, which causes unnecessary waste of manpower and material resources. In order to solve the problem, the Chinese patent with the application number of 20171020834.X discloses an adjustable range hood hook, and the height can be freely adjusted by arranging an adjusting module sliding groove to connect a fixing frame, so that the trouble in use caused by improper installation of the range hood is avoided. However, such a hook has the defects of complex structure and inconvenient operation, and the hook is not provided with an unhooking prevention structure, so that if the range hood is lifted up by mistake during cleaning, the range hood can be separated from the hook, and the potential safety hazard that the range hood falls off exists.

Disclosure of Invention

The first technical problem to be solved by the invention is to provide a hook assembly which is simple in structure and convenient and fast to install, aiming at the defects existing in the prior art.

The second technical problem to be solved by the invention is to provide a range hood with the hook assembly, which can realize seamless installation with a cabinet, can realize self-locking after being hung and is not easy to fall off, and ensures stable hanging.

The technical scheme adopted by the invention for solving the first technical problem is as follows: the utility model provides a hook component, includes link plate and the couple that is used for articulating the object, its characterized in that: the hook is rotatably connected with the hanging plate, and the hook assembly further comprises a driving mechanism which can drive the hook to rotate the hanging plate so as to lift or reduce the hanging object.

Preferably, the hook is rotatably connected with the hanging plate through a rotating shaft, and the output end of the driving mechanism is connected with the rotating shaft. Alternatively, other rotational connections, such as hinges, etc., may be used.

Preferably, the driving mechanism comprises a motor, a transmission shaft driven by the motor to rotate around the axis of the transmission shaft, a driving wheel arranged on the transmission shaft and a driven wheel arranged on the rotating shaft, the driving wheel is meshed with the driven wheel, and the transmission shaft and the rotating shaft extend in the same direction.

In order to avoid the hook from rotating unnecessarily after being turned up in place and ensure the stability of connection, according to one aspect of the invention, the hook further comprises a braking mechanism for braking the hook, wherein the braking mechanism comprises a braking disc arranged on the transmission shaft, and a first braking disc and a second braking disc which can be close to each other and clamp the braking disc so as to realize the braking of the transmission shaft or be far away from each other, and the first braking disc and the second braking disc are arranged on two opposite sides of the braking disc.

In order to avoid the hook from rotating unnecessarily after being turned up in place and ensure the stability of connection, according to another aspect of the invention, the hook further comprises a braking mechanism for braking the hook, the transmission shaft is provided with a lock hole, and the braking mechanism comprises a lock pin which can be inserted into the lock hole so as to realize the braking of the transmission shaft or be separated from the transmission shaft.

Preferably, the brake mechanism further comprises a solenoid valve for driving the first brake block and the second brake block to act or for driving the lock pin to act.

In order to facilitate the hook to be arranged, a supporting seat is arranged on the hanging plate, one side of the supporting seat, which is far away from the hanging plate, is sunken towards the direction of the hanging plate to form a connecting groove, and two ends of the rotating shaft penetrate out of the hook and are respectively rotatably connected with two opposite sides of the connecting groove.

The technical scheme adopted by the invention for solving the second technical problem is as follows: the utility model provides an be applied to the range hood that has just been said couple subassembly, includes the range hood body as articulating the object, the range hood body includes the fan frame, the fan frame is including as the back plate, its characterized in that: and the rear plate is provided with a hanging hole matched with the hook.

For the auto-lock of realizing couple subassembly and range hood body, prevent to drop, work as when being provided with the supporting seat on the link plate, the upper end of hanging hole is provided with the gyro wheel, the gyro wheel is located the one side that the link plate was kept away from to the back plate, the axis of rotation of gyro wheel and the axis of rotation syntropy extension of couple, under the on-hook state, the gyro wheel restriction is in the space that the top surface and the couple of the supporting seat on back plate, link plate enclosed jointly, and the gyro wheel supports on the top surface of supporting seat, the couple is kept away from and is the H with the distance between the one end of link plate connection and the back plate, the diameter of gyro wheel is D to satisfy: h is less than D.

Preferably, for realizing the location of installation initial state, and the auto-lock after the installation is accomplished, the couple includes first hook portion and relative first hook portion buckle and extend the second hook portion that forms, the one end that second hook portion was kept away from to first hook portion rotates with the link plate to be connected, the one end that first hook portion was kept away from to second hook portion is buckled and is formed with the arch, protruding and first hook portion syntropy extend.

Compared with the prior art, the invention has the advantages that: the hook has the function of automatic turning, so that the hooked object can be lifted during installation, the gap between the hooked object and the installation foundation can be eliminated during the lifting process, and seamless installation is realized; the stability of the hook position can be ensured by arranging the braking mechanism; the roller is arranged on the hanging hole of the rear plate of the range hood body, and in an on-hook state, the roller is limited in a space enclosed by the rear plate, the hook and the supporting seat, so that the displacement of the range hood is limited, a good anti-vibration effect is achieved, and the whole range hood body can be prevented from falling off; the supporting seat is arranged to support the whole weight of the range hood body, and the supporting seat has good long-term stress conditions, so that the whole connection is stable; the hook is provided with the bulge, so that the hook has the function of initial positioning in a vertical downward state.

Drawings

FIG. 1 is a schematic view of a range hood according to a first embodiment of the present invention;

FIG. 2 is an enlarged view of a portion I of FIG. 1;

FIG. 3 is a schematic view of the hidden hook of FIG. 2;

fig. 4 is a front schematic view of a hanger and hook assembly of a first embodiment of the range hood of the present invention;

fig. 5 is a rear view of the hanger and hook assembly of the first embodiment of the range hood of the present invention;

FIG. 6 is an enlarged view of portion II of FIG. 5;

fig. 7 is an exploded view of the hanger and hook assembly of the first embodiment of the range hood of the present invention;

FIG. 8 is a cross-sectional view of a range hood in accordance with a first embodiment of the present invention;

fig. 9 is a partial sectional view (initial state) of the installation of the first embodiment of the range hood and the installation base of the present invention;

FIG. 10 is a first step partial cross-sectional view of the first embodiment of the range hood of the present invention installed with a mounting base;

FIG. 11 is a second partial sectional view of the first embodiment of the range hood of the present invention and the mounting base;

FIG. 12 is a third step partial cross sectional view of the first embodiment of the range hood of the present invention installed with a mounting base;

fig. 13 is a partial sectional view of the fourth step of mounting the first embodiment of the range hood and the mounting base of the present invention;

FIG. 14 is a partial cross-sectional view of a range hood in accordance with a first embodiment of the present invention, as installed with a mounting base;

fig. 15 is a partial sectional view of the range hood according to the first embodiment of the present invention and a mounting base in another state after the mounting;

fig. 16 is a schematic view of a hanger and hook assembly of a second embodiment of a range hood of the present invention;

FIG. 17 is an enlarged view of a portion III of FIG. 16;

fig. 18 is an exploded view of fig. 17.

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.

Example one

Referring to fig. 1, a range hood includes a range hood body and a hook assembly.

Referring to fig. 1, 2, 4 to 7, the hook assembly is used for being connected and fixed with an external installation base, such as a wall surface 100 (which will be shown in fig. 9 to 14), and includes a hanging plate 11, a hook 12 disposed on the hanging plate 11, a driving mechanism, and a braking mechanism. The peg board 11 may be elongate and, when installed, extends laterally from side to side. In order to stabilize the installation, in the present embodiment, two hooks 12 are provided on the hanging plate 11 at a left-right interval. The hanging plate 11 is provided with a supporting seat 15, and one end of the hook 12 is rotatably connected with the supporting seat 15 through a rotating shaft 16. In order to facilitate the connection between the hook 12 and the supporting seat 15, one side of the supporting seat 15 away from the hanging plate 11 is recessed towards the hanging plate 11 to form a connecting groove 151, and two ends of the rotating shaft 16 are rotatably connected with two opposite sides of the connecting groove 151 respectively. Each hook 12 is substantially L-shaped, and includes a first hook 121 connected to the rotating shaft 16 and a second hook 122 connected to the first hook 121, the second hook 122 is integrally formed with the first hook 121, and the second hook 122 is formed by bending and extending the first hook 121 away from the end connected to the rotating shaft 16. Preferably, the first hook 121 and the second hook 122 are perpendicular to each other. One end of the first hook 121 is used for two ends of the rotating shaft 16 to pass through and is fixedly connected with each other, so that the hook 12 can synchronously rotate through the rotation of the rotating shaft 16. One end of the second hook 122 away from the first hook 121 is bent to form a protrusion 123, and the protrusion 123 extends in the same direction as the first hook 121 and is located on the same side of the second hook 122. The drive mechanism and the brake mechanism will be described in detail below.

Referring to fig. 1 and 3, the range hood body includes a fan frame 2, the fan frame 2 has a rear plate 21 located at the rear side, and the top of the rear plate 21 is used for being mounted with a hook assembly. Hanging hole 211 is formed in rear plate 21, idler wheel 212 is arranged at the upper end of hanging hole 211, idler wheel 212 is located on one side, away from hanging plate 11, of rear plate 21, and two ends of idler wheel 212 are rotatably connected with rear plate 21. The axis of rotation of the roller 212 extends co-directionally with, and preferably parallel to, the axis of rotation of the shaft 16 (the axis of rotation of the hook 12).

The driving mechanism is used for driving the hook 12 to rotate relative to the hanging plate 11 and comprises a motor 131, a transmission shaft 132, a driving wheel 133 and a driven wheel 134, the motor 131 is fixedly arranged on the hanging plate 11, and the motor 131 and the supporting seat 15 are positioned on two sides of the hanging plate 11. The transmission shaft 132 extends in the same direction as the rotation shaft 16, preferably in parallel, and the transmission shaft 132 is directly or indirectly connected to the output shaft of the motor 131, as long as the motor 131 can drive the transmission shaft 132 to rotate around the axis thereof. The two ends of the transmission shaft 132 are rotatably connected with the hanging plate 11. The two driving wheels 133 and the two driven wheels 134 are respectively provided, one group of driving wheel 133 and one group of driven wheel 134 correspond to one hook 12, the driving wheel 133 is arranged on the transmission shaft 132 and rotates along with the transmission shaft 132, the driven wheel 134 is arranged on the rotating shaft 16, and the driving wheel 133 is meshed with the driven wheel 134. Therefore, the driven wheel 134 is connected to the rotating shaft 16 as an output end of the driving mechanism, and when the motor 131 drives the transmission shaft 132 to rotate, the driving wheel 133 can be driven to rotate synchronously, so as to drive the driven wheel 134 to rotate, thereby driving the hook 12 to rotate through the rotating shaft 16. A notch 111 may be formed in the hanging plate 11 at a position adjacent to the supporting seat 15 (in this embodiment, at a position below the supporting seat 15) to allow a portion of the driving wheel 133 to pass through, so that the driving wheel 133 is partially located below the connecting groove 151 of the supporting seat 15 to engage with the driven wheel 134 on the rotating shaft 16.

The brake mechanism is arranged on the hanging plate 11 and positioned on the same side of the driving mechanism, and comprises an electromagnetic valve 141, a brake disc 142, a first brake disc 143 and a second brake disc 144, wherein the brake disc 142 is in a hollow cylindrical shape and is sleeved on the periphery of the transmission shaft 132. The solenoid valve 141 is externally provided with a first holder 145 and a second holder 146, wherein the first brake pad 143 is disposed on the first holder 145, the second brake pad 144 is disposed on the second holder 146, and the first brake pad 143 and the second brake pad 144 are disposed on opposite sides of the brake disc 142, in this embodiment, both have a circular arc shape, and are adapted to the outer peripheral shape of the brake disc 142. The first holder 145 and the second holder 146 are connected to the output of the solenoid valve 141 and are movable toward and away from each other (a transmission mechanism may be provided at the output of the solenoid valve 141 such that the two holders move in opposite directions, or the solenoid valve 141 may have two outputs). Thus, when the solenoid valve 141 is activated, the first and

second holders

145 and 146 are moved close to each other, so that the first and

second brake pads

143 and 144 clamp the brake disc 142, thereby making the transmission shaft 132 unable to rotate. Alternatively, other mechanisms for driving the first holder 145 and the second holder 146 to move may be used, such as a conventional linear driving module.

Since the side of the hanging plate 11 where the driving mechanism and the braking mechanism are arranged needs to be installed on the wall surface 100, the hanging plate 11 is integrally in a convex shape in a direction away from the wall surface 100, so that after the hanging plate 11 is installed on the wall surface 100, a sufficient space is provided between the hanging plate 11 and the wall surface 100 for installing the driving mechanism and the braking mechanism, as shown in fig. 9 to 15.

Referring to fig. 9, in an initial state, the hanger 1 is mounted to the wall surface 100 at a proper height, wherein the supporting seat 15 is located at a side away from the wall surface 100, and at this time, the hook 12 is adjusted such that the first hook 121 extends longitudinally downward (preferably, vertically downward) from the connection with the rotating shaft 16, the second hook 122 extends laterally forward, and the protrusion 123 extends upward.

Referring to fig. 10, the rear plate 21 of the fan frame 2 is hung on the hook 12, and at this time, the roller 212 is positioned at the inner side of the protrusion 123 of the hook 12 facing the rear plate 21, so that the roller 212 is prevented from falling off. The protrusion 123 plays a role in initial positioning, and primary hanging is achieved.

Referring to fig. 11, the driving mechanism drives the hook 12 to turn up counterclockwise (in the direction indicated by the arrow), so as to lift the whole range hood body, and at this time, the roller 212 is located at the connection position of the first hook 121 and the second hook 122 of the hook 12.

Referring to fig. 12, the driving mechanism continues to drive the hook 12 to turn up counterclockwise (in the direction indicated by the arrow), and the roller 212 changes position along with the turning of the hook 12 and slides relatively to the upper surface of the first hook 121 of the hook 12.

Referring to fig. 13, the hook 12 is turned to the top, and the roller 212 is limited in a V-shaped groove, the V-shaped groove is formed by the rear plate 21, the top surface of the support seat 15 and the hook 12, the roller 212 is supported on the support seat 15, at this time, the distance between one end of the hook 12 (the protrusion 123 in this embodiment) far away from the rotating shaft 16 and the rear plate 21 is H, the diameter of the roller 212 is D, H is less than D, so that the displacement of the roller 212 is limited, a good vibration-proof effect is achieved (self-excited vibration exists in the operating process of the range hood), and the support seat 15 has a good long-term stress condition; in addition, even if the range hood body is lifted up by mistake, the range hood body can not be unhooked and fall off. The form has better general type, can be suitable for the rollers 212 with different sizes of different range hoods, and can realize secondary on-hook as long as H is less than D.

Referring to fig. 8 and 14, the braking mechanism is started to lock the transmission shaft 132, that is, the position of the hook 12 is ensured to be unchanged, and self-locking and anti-falling are completed.

Referring to fig. 15, in another locking state, the end of the hook 12 away from the rotating shaft 16 abuts against the back plate 21, and the back plate 21, the top surface of the support 15 and the hook 12 together form a closed annular space, i.e. H is 0. This form is more easily implemented in control, when the hanger 12 is in contact with the rear plate 21, the motor 131 is locked and the current is increased, and whether the hanger 12 is hung in place can be judged by recognizing the change of the current.

In the process that the hook 12 is turned upwards, the range hood body is lifted upwards, so that the seamless installation with a cabinet can be realized. When the range hood body needs to be disassembled, the assembling process is opposite to the assembling process.

The braking mechanism of the embodiment can realize braking when the hook 12 is turned up to any position. More preferably, in order to hang the range hood body, the braking mechanism may be activated to brake the transmission shaft 132 before the hook 12 is turned up, and the braking mechanism is released when the hook 12 needs to be turned up, and then the braking mechanism is activated to brake when the hook 12 is turned up.

Example two

Referring to fig. 16 to 18, in the present embodiment, the difference from the first embodiment is that the braking mechanism includes a solenoid valve 141 and a lock pin 147, a lock hole 1321 is opened on the transmission shaft 132, and the lock pin 147 is disposed on the output end of the solenoid valve 141 and can be inserted into the lock hole 1321 or disengaged from the lock hole 1321. When the hook 12 needs to be ensured to be turned up to the self-locking and anti-disengaging position, the lock pin 147 and the lock hole 1321 on the transmission shaft 132 are enabled, and at this time, the solenoid valve 141 can be started, so that the lock pin 147 is inserted into the lock hole 1321 to realize locking, and the transmission shaft 132 is locked.

The braking mechanism of this embodiment needs to brake when the hook 12 is turned up.

Claims

1. The utility model provides a range hood, includes couple subassembly and range hood body, the couple subassembly includes link plate (11) and couple (12) that are used for articulating the range hood body, the range hood body includes fan frame (2), fan frame (2) include back plate (21), its characterized in that: the rear plate (21) is provided with a hanging hole (211) matched with the hook (12), the hook (12) is rotatably connected with the hanging plate (11), and the hook assembly further comprises a driving mechanism capable of driving the hook (12) to rotate relative to the hanging plate (11) so as to lift or lower a hanging object; (ii) a Be provided with supporting seat (15) on link plate (11), the upper end of hanging hole (211) is provided with gyro wheel (212), gyro wheel (212) are located back plate (21) and keep away from one side of link plate (11), the axis of rotation of gyro wheel (212) and the axis of rotation syntropy extension of couple (12), under the on-hook state, in the space that top surface and couple (12) of supporting seat (15) on back plate (21), link plate (11) enclose jointly of gyro wheel (212), and gyro wheel (212) support on the top surface of supporting seat (15), the distance between one end of keeping away from and being connected with link plate (11) and back plate (21) of couple (12) is H, the diameter of gyro wheel (212) is D to satisfy: h is less than D.

2. The range hood of claim 1, wherein: couple (12) include first hook portion (121) and relative first hook portion (121) second hook portion (122) that extend formation of buckling, the one end that second hook portion (122) were kept away from in first hook portion (121) is rotated with link plate (11) and is connected, the one end that first hook portion (121) were kept away from in second hook portion (122) is buckled and is formed with arch (123), arch (123) and first hook portion (121) syntropy extend.

3. The range hood of claim 1, wherein: the hook (12) is rotatably connected with the hanging plate (11) through a rotating shaft (16), and the output end of the driving mechanism is connected with the rotating shaft (16).

4. The range hood of claim 3, wherein: the driving mechanism comprises a motor (131), a transmission shaft (132) driven by the motor (131) to rotate around the axis of the driving mechanism, a driving wheel (133) arranged on the transmission shaft (132) and a driven wheel (134) arranged on the rotating shaft (16), the driving wheel (133) is meshed with the driven wheel (134), and the transmission shaft (132) and the rotating shaft (16) extend in the same direction.

5. The range hood of claim 4, wherein: the hook assembly further comprises a brake mechanism for braking the hook (12), the brake mechanism comprises a brake disc (142) arranged on the transmission shaft (132), and a first brake plate (143) and a second brake plate (144) which can be close to each other to clamp the brake disc (142) so as to realize braking of the transmission shaft (132) or far away from each other, and the first brake plate (143) and the second brake plate (144) are arranged on two opposite sides of the brake disc (142).

6. The range hood of claim 4, wherein: the hook assembly further comprises a braking mechanism for braking the hook (12), a lock hole (1321) is formed in the transmission shaft (132), and the braking mechanism comprises a lock pin (147) which can be inserted into the lock hole (1321) to brake the transmission shaft (132) or be separated from the transmission shaft (132).

7. The range hood of claim 5 or 6, wherein: the brake mechanism further comprises a solenoid valve (141) for driving the first brake block (143) and the second brake block (144) to act or driving the lock pin (147) to act.

8. The range hood according to any one of claims 3 to 6, wherein: one side of the supporting seat (15) far away from the hanging plate (11) is sunken towards the hanging plate (11) to form a connecting groove (151), and two ends of the rotating shaft (16) penetrate out of the hook (12) and are respectively connected with two opposite sides of the connecting groove (151) in a rotating mode.