Range hood

Abstract

The utility model relates to a range hood, which comprises a shell, an air inlet, an air outlet and a fan, the smoke baffle is restrained in front of the air inlet in a manner of rotating relative to the shell; the smoke barrier bracket is connected with the smoke barrier; the movement mechanism comprises a driving mechanism which is in driving connection with the smoke barrier bracket; the locking mechanism comprises a lock pin which can be restrained on the smoke barrier in the mode of being close to or away from the smoke barrier support. The driving source is in driving connection with the lock pin; the locking mechanism has the following two states that in the first state, the driving source drives the lock pin to move to the first position, the lock pin can lock the smoke barrier support and the driving mechanism, and then connection of the smoke barrier support and the driving mechanism is achieved; in the second state, the driving source drives the lock pin to move to the second position, the lock pin can unlock the smoke barrier support and the driving mechanism, and then the smoke barrier support is separated from the driving mechanism. The driving source drives the lock pin to move, the smoke barrier is quickly disassembled, and therefore maintenance is convenient.

Description

Technical Field

[0001] This utility model relates to the field of oil fume purification technology, and in particular to an oil fume extractor. Background Technology

[0002] Range hoods have become an indispensable kitchen appliance in modern homes. Current technology commonly uses the principle of vortex air pressure to absorb most of the cooking fumes close to the stove in an arc shape, thus reducing their adverse effects on human health.

[0003] Current range hoods include a housing with an air inlet on the front, a baffle plate that is constrained in front of the air inlet by means of flipping relative to the housing, and a motion mechanism for driving the movement of the baffle plate. There are many types of motion mechanisms for driving the movement of the baffle plate in the prior art. For example, Chinese utility model patent with patent number ZL202323073983.5 (authorization announcement number CN221424937U) discloses a baffle plate motion mechanism and a range hood. This motion mechanism provides power through a drive device, so that the linkage mechanism can automatically drive the rocker arm to rotate, thereby realizing the opening and closing movement of the baffle plate. Another example is Chinese invention patent with patent number ZL202110357159.9 (authorization announcement number CN115164243B), which discloses a baffle plate motion mechanism and a range hood using the motion mechanism. This motion mechanism, by setting a double hinge structure, allows the baffle plate to perform a composite movement of translation and rotation.

[0004] Although the aforementioned motion mechanism can automatically open and close the smoke baffle, since the motion mechanism is located inside the range hood housing and the connection between the smoke baffle and the motion mechanism is fixed, it is difficult to disassemble the smoke baffle for repair if the motion mechanism malfunctions when the smoke baffle is closed. Therefore, further improvements to the existing technology are needed. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a range hood with a convenient smoke baffle plate for easy maintenance, in contrast to the above-mentioned prior art.

[0006] The technical solution adopted by this utility model to solve the above-mentioned technical problems is: a range hood, comprising:

[0007] The casing has an air inlet on its front side;

[0008] The smoke baffle is constrained in front of the air inlet in a manner that allows it to rotate relative to the housing, thereby opening or closing the air inlet;

[0009] Smoke baffle bracket, connected to the smoke baffle;

[0010] The motion mechanism includes a drive mechanism that is connected to the smoke baffle bracket drive;

[0011] Its characteristic is that it further includes a locking mechanism, the locking mechanism comprising:

[0012] Locking pins are used to secure the smoke baffle plate in a manner that allows it to be close to or far from the smoke baffle plate bracket;

[0013] The driving source is connected to the locking pin drive;

[0014] The locking mechanism has the following two states:

[0015] In the first state, the drive source drives the locking pin to move to the first position, and the locking pin can lock the smoke baffle bracket and the drive mechanism, thereby realizing the connection between the smoke baffle bracket and the drive mechanism;

[0016] In the second state, the drive source drives the locking pin to move to the second position, and the locking pin can unlock the smoke baffle bracket and the drive mechanism, thereby realizing the disengagement of the smoke baffle bracket from the drive mechanism.

[0017] To enable the installation of the locking pin, the locking mechanism further includes a lock housing connected to the smoke baffle plate. The locking pin is movably constrained within the lock housing. The locking pin has a first end capable of locking the smoke baffle plate bracket and the drive mechanism. The lock housing has a through hole for the first end of the locking pin to extend outward.

[0018] The preferred first method of the above-mentioned driving source is as follows: the locking pin is magnetic, and the driving source includes an electromagnetic component disposed in the lock housing. The electromagnetic component is configured such that: in the energized state, the electromagnetic component can generate a magnetic force that attracts the locking pin, thereby causing the locking pin to move away from the smoke baffle bracket; in the second state, the electromagnetic component is energized, and the locking pin can be in a second position under the magnetic force of the electromagnetic component.

[0019] Furthermore, the driving source also includes an elastic element disposed within the lock housing. The elastic element acts between the electromagnetic element and the locking pin, causing the locking pin to always tend to move toward the smoke baffle bracket. In the first state, the electromagnetic element is de-energized, and the locking pin can be in the first position under the action of the elastic element.

[0020] Preferably, the electromagnetic component is an electromagnetic coil, and the locking pin is at least partially inserted into the electromagnetic coil.

[0021] The preferred second method of the above-mentioned driving source is: the driving source is a drive motor.

[0022] To enable locking and unlocking of the smoke baffle bracket and the drive mechanism, preferably, the motion mechanism further includes a rocker arm connected to the drive mechanism. The rocker arm has a first locking hole, and the smoke baffle bracket has a second locking hole corresponding to the first locking hole. In a first state, the smoke baffle bracket and the drive mechanism are locked by a locking pin passing through the first and second locking holes. In a second state, the smoke baffle bracket and the drive mechanism are unlocked by the locking pin exiting the first and second locking holes.

[0023] Preferably, the smoke baffle bracket includes a first bracket that fits against the smoke baffle and a second bracket formed by bending relative to the first bracket. The second bracket extends in a direction that gradually moves away from the smoke baffle. The second bracket and the rocker arm are arranged side by side and fitted together. The second locking hole is opened on the second bracket, and the first locking hole is opened on the wall surface of the rocker arm that fits against the second bracket.

[0024] To facilitate the maintenance of the motion mechanism, a window is provided on the front side of the housing to expose the drive mechanism. A cover plate is detachably connected to the window, and an opening is provided in the center of the cover plate to expose at least part of the drive mechanism.

[0025] Preferably, the front surface of the housing has a recessed profile from front to back, the window is opened within the profile, and the surface of the cover plate is lower than or substantially flush with the profile.

[0026] Compared with the prior art, the advantages of this utility model are as follows: by setting a locking pin and a driving source, the locking pin can be driven to move by the driving source, thereby locking or unlocking the smoke baffle bracket and the driving mechanism through the locking pin. This range hood replaces the fixed connection method in the prior art by using the method of driving the locking pin to move through the driving source, which facilitates the disassembly and assembly of the smoke baffle. Therefore, when the smoke baffle is closed, the locking pin can be driven to move through the driving source to quickly disassemble the smoke baffle, thereby facilitating the maintenance of the range hood by the staff. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the range hood in Embodiment 1 of this utility model;

[0028] Figure 2 This is a cross-sectional view of the locking mechanism in Embodiment 1 of this utility model;

[0029] Figure 3 This is an exploded view of the locking mechanism in Embodiment 1 of this utility model;

[0030] Figure 4 This is another structural schematic diagram of the range hood in Embodiment 1 of this utility model (cover plate omitted). Detailed Implementation

[0031] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0032] Example 1:

[0033] like Figures 1-4 As shown, the range hood in this embodiment includes a housing 1, a smoke baffle 2, a smoke baffle bracket 3, a moving mechanism 4, and a locking mechanism 5.

[0034] The housing 1 has an air inlet 10 on its front side; a smoke baffle 2 is constrained in front of the air inlet 10 in a manner that allows it to rotate relative to the housing 1, thereby opening or closing the air inlet 10; a smoke baffle bracket 3 is connected to the smoke baffle 2; such as Figure 1 As shown, the smoke baffle bracket 3 includes a first bracket 31 that fits against the smoke baffle 2 and a second bracket 32 ​​formed by bending relative to the first bracket 31. The second bracket 32 ​​extends in a direction that gradually moves away from the smoke baffle 2. The motion mechanism 4 includes a drive mechanism (not shown in the figure) that is driven and connected to the smoke baffle bracket 3 and a rocker arm 41 that is driven and connected to the drive mechanism. The motion mechanism 4 in this embodiment is prior art and can be referred to.

[0035] The aforementioned locking mechanism 5 includes a lock housing 53, a locking pin 51, and a drive source 52. The lock housing 53 is connected to the smoke baffle 2, and the locking pin 51 is constrained to the smoke baffle 2 in a manner that allows it to move closer to or further away from the smoke baffle bracket 3. Figure 2 As shown, the locking pin 51 is movably constrained within the lock housing 53. The locking pin 51 has a first end 511 capable of locking the smoke baffle bracket 3 and the drive mechanism. The lock housing 53 has a through hole 531 for the first end 511 of the locking pin 51 to extend outward. The drive source 52 is driven and connected to the locking pin 51 to drive the locking pin 51 to move. The locking mechanism 5 has the following two states: In the first state, the drive source 52 drives the locking pin 51 to move to the first position, and the locking pin 51 can lock the smoke baffle bracket 3 and the drive mechanism, thereby realizing the connection between the smoke baffle bracket 3 and the drive mechanism; In the second state, the drive source 52 drives the locking pin 51 to move to the second position, and the locking pin 51 can unlock the smoke baffle bracket 3 and the drive mechanism, thereby realizing the disengagement between the smoke baffle bracket 3 and the drive mechanism.

[0036] In this embodiment, the locking pin 51 is magnetic. The driving source 52 includes an electromagnetic element 521 and an elastic element 522, both disposed within the lock housing 53. The electromagnetic element 521 is configured such that, in the energized state, it generates a magnetic force attracting the locking pin 51, causing the locking pin 51 to move away from the smoke baffle bracket 3. The elastic element 522 acts between the electromagnetic element 521 and the locking pin 51, ensuring that the locking pin 51 always tends to move closer to the smoke baffle bracket 3. In the second state, the electromagnetic element 521 is energized, and the locking pin 51 is in a second position under the magnetic force of the electromagnetic element 521. In the first state, the electromagnetic element 521 is de-energized, and the locking pin 51 is in a first position under the action of the elastic element 522. Figure 2 and Figure 3 As shown, the electromagnetic component 521 is an electromagnetic coil, and the locking pin 51 is at least partially inserted into the electromagnetic coil. The aforementioned elastic component 522 is a spring.

[0037] The rocker arm 41 has a first locking hole (not shown in the figure), and the smoke baffle bracket 3 has a second locking hole (not shown in the figure) corresponding to the first locking hole. In the first state, the smoke baffle bracket 3 and the drive mechanism are locked by the locking pin 51 passing through the first and second locking holes; in the second state, the smoke baffle bracket 3 and the drive mechanism are unlocked by the locking pin 51 being disengaged from the first and second locking holes. Figure 1 As shown, the second bracket 32 ​​and the rocker arm 41 are arranged side by side and attached together. The second locking hole is opened on the second bracket 32, and the first locking hole is opened on the wall surface of the rocker arm 41 that is attached to the second bracket 32.

[0038] In addition, to facilitate maintenance of the motion mechanism, a window 11 is provided on the front side of the housing 1 to expose the drive mechanism. A cover plate 12 is detachably connected to the window 11, and an opening 121 is provided in the center of the cover plate 12 to expose at least part of the drive mechanism. Figure 4 As shown, the front surface of the housing 1 has a recessed profile 13 from front to back, and a window 11 is opened within the profile 13. The surface of the cover plate 12 is lower than or basically flush with the profile 13. The profile 13 can maximize the flatness, integrity, and aesthetics of the front side of the housing 1; in addition, the window 11 can facilitate the maintenance of the moving mechanism by the staff, reducing the difficulty and complexity of maintenance.

[0039] In this embodiment, when the range hood is working normally, the control electromagnetic component 521 is always in a de-energized state, so the locking pin 51 can be in the first position under the elastic force of the elastic component 522 (e.g., Figure 1As shown, at this time, the locking pin 51 passes through the first locking hole and the second locking hole to lock the smoke baffle bracket 3 and the rocker arm 41. When the smoke baffle needs to be disassembled, the electromagnetic component 521 is energized, and the locking pin 51 can move away from the smoke baffle bracket 3 under the magnetic force of the electromagnetic component 521, so that the locking pin 51 is in the second position. At this time, the locking pin 51 is disengaged from the first locking hole and the second locking hole, thereby unlocking the smoke baffle bracket 3 and the rocker arm 41, which makes it convenient for the staff to disassemble the smoke baffle.

[0040] Example 2:

[0041] Unlike Embodiment 1, the driving source 52 in this embodiment is a drive motor (not shown in the figure). That is, the lock pin 51 can be moved by the drive motor, so that the lock pin 51 can move closer to or away from the smoke baffle bracket 3. The connection method between the drive motor and the lock pin 51 is existing technology and will not be described in detail here.

[0042] In the specification and claims of this utility model, terms indicating direction, such as "front," "rear," "upper," "lower," "left," "right," "side," "top," and "bottom," are used to describe various exemplary structural parts and elements of this utility model. However, the use of these terms is merely for the purpose of explanation and is based on the exemplary orientations shown in the accompanying drawings. Since the embodiments disclosed in this utility model can be arranged in different orientations, these terms indicating direction are for illustrative purposes only and should not be regarded as limitations. For example, "upper" and "lower" are not necessarily limited to directions opposite to or consistent with the direction of gravity.

Claims

1. A range hood, comprising: a housing (1) having an air inlet (10) formed in a front side thereof; a baffle plate (2) rotatably constrained in front of the air inlet (10) of the housing (1) to open or close the air inlet (10); a baffle plate support (3) connected to the baffle plate (2); a movement mechanism (4) including a driving mechanism drivingly connected to the baffle plate support (3); characterized in that it further comprises a locking mechanism (5) including: a locking pin (51) movably constrained to the baffle plate (2) in a manner of approaching or moving away from the baffle plate support (3); a driving source (52) drivingly connected to the locking pin (51); the locking mechanism (5) having two states as follows: in a first state, the driving source (52) drives the locking pin (51) to move to a first position, the locking pin (51) being capable of locking the baffle plate support (3) and the driving mechanism, thereby realizing the connection of the baffle plate support (3) and the driving mechanism; in a second state, the driving source (52) drives the locking pin (51) to move to a second position, the locking pin (51) being capable of unlocking the baffle plate support (3) and the driving mechanism, thereby realizing the disconnection of the baffle plate support (3) and the driving mechanism.

2. The hood according to claim 1, characterized in that: the locking mechanism (5) further comprises a lock housing (53) connected to the baffle plate (2), the locking pin (51) being movably constrained in the lock housing (53), the locking pin (51) having a first end portion (511) capable of locking the baffle plate support (3) and the driving mechanism, the lock housing (53) being provided with a through hole (531) for the first end portion (511) of the locking pin (51) to extend out of.

3. The hood according to claim 2, characterized in that: the locking pin (51) has magnetism, the driving source (52) including an electromagnetic member (521) arranged in the lock housing (53), the electromagnetic member (521) being configured to generate a magnetic force attracting the locking pin (51) in a powered state, thereby causing the locking pin (51) to move towards a direction away from the baffle plate support (3); in the second state, the electromagnetic member (521) is in the powered state, and the locking pin (51) is in the second position under the action of the magnetic force of the electromagnetic member (521).

4. The hood according to claim 3, characterized in that: the driving source (52) further includes a resilient member (522) arranged in the lock housing (53) and acting between the electromagnetic member (521) and the locking pin (51), so that the locking pin (51) always has a tendency to move towards a direction close to the baffle plate support (3); in the first state, the electromagnetic member (521) is in a de-energized state, and the locking pin (51) is in the first position under the action of the resilient member (522).

5. The hood according to claim 4, characterized in that: the electromagnetic member (521) is an electromagnetic coil, and the locking pin (51) is at least partially arranged in the electromagnetic coil.

6. The hood according to claim 1, characterized in that: the driving source (52) is a driving motor.

7. The hood according to any one of claims 1-6, characterized in that: The movement mechanism (4) further comprises a rocker arm (41) connected with the driving mechanism, the rocker arm (41) is provided with a first locking hole, the smoke baffle support (3) is provided with a second locking hole corresponding to the first locking hole, in the first state, the smoke baffle support (3) and the driving mechanism are locked by the locking pin (51) penetrating the first locking hole and the second locking hole; in the second state, the smoke baffle support (3) and the driving mechanism are unlocked by the locking pin (51) exiting the first locking hole and the second locking hole.

8. The hood according to claim 7, characterized in that: The smoke baffle support (3) comprises a first support (31) abutting the smoke baffle (2) and a second support (32) bent relative to the first support (31), the second support (32) extends towards a direction gradually away from the smoke baffle (2), the second support (32) and the rocker arm (41) are arranged side by side, the second locking hole is provided on the second support (32), and the first locking hole is provided on the wall surface of the rocker arm (41) abutting the second support (32).

9. The hood according to any one of claims 1-6, characterized in that: The front side of the shell (1) is provided with a window (11) for exposing the driving mechanism, the window (11) is detachably connected with a cover plate (12), and the center of the cover plate (12) is provided with an opening (121) for exposing the driving mechanism at least partially.

10. The hood according to claim 9, characterized in that: The front surface of the shell (1) is provided with a concave profile (13) from front to back, the window (11) is provided in the profile (13), and the surface of the cover plate (12) is lower than the profile (13) or substantially flush with the profile (13).

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