Smoke barrier opening and closing mechanism and range hood with same

Abstract

A smoke barrier opening and closing mechanism is characterized by comprising a mounting plate, a motor, a connecting cylinder, a telescopic rod, a connecting sleeve, a connecting rod and a smoke barrier, and the motor is arranged on the mounting plate and provided with a driving output shaft; the connecting cylinder is axially provided with a telescopic cavity; the telescopic rod is telescopically arranged in the telescopic cavity of the connecting cylinder and can rotate; the connecting sleeve is arranged on the outer side of the connecting cylinder and can position the telescopic rod on the connecting cylinder; one end of the connecting rod is connected with the driving output shaft; the other end is connected with the connecting cylinder; the upper end of the smoke barrier is rotatably connected with the mounting plate, and a connector is movably arranged at the lower end of the smoke barrier and is rotatably connected with the telescopic rod. The utility model further relates to a range hood. The range hood smoke barrier has the advantages that the opening angle of the smoke barrier can be automatically adjusted according to specific requirements, and the problems that the angle of the range hood smoke barrier is fixed and the smoke barrier viewing angle of users with different heights exists are solved.

Description

Technical Field

[0001] This utility model relates to a driving structure for a smoke baffle of a range hood, and also to a range hood, belonging to the field of oil fume purification technology. Background Technology

[0002] Range hoods have become an indispensable kitchen appliance in modern homes. They operate on the principles of fluid dynamics, using a centrifugal fan inside to draw in cooking fumes and a filter to remove some grease particles. The centrifugal fan consists of a casing, an impeller housed within the casing, and a motor that drives the impeller. As the impeller rotates, a negative pressure is generated at the center of the fan, drawing in the cooking fumes from below. After being accelerated by the fan, the fumes are collected by the casing and guided outdoors.

[0003] Range hoods mainly include top-mounted and side-mounted types. Side-mounted range hoods, with their low air inlet and high smoke extraction rate, are gradually becoming the first choice for many kitchens. In side-mounted range hoods, the baffle plate plays a crucial role in capturing smoke.

[0004] Most range hoods use a motor-driven four-bar linkage mechanism to open the smoke baffle, but the opening angle is fixed and limited, which can obstruct the view or result in poor smoke extraction. Some range hoods have an electric push rod mechanism that can control the smoke baffle to open to two fixed positions, but this requires multiple electrically controlled limit switches, which is more expensive, and the opening angle is also limited, which can also easily obstruct the view or result in poor smoke extraction. Utility Model Content

[0005] The first technical problem to be solved by this utility model is to provide a smoke baffle opening and closing mechanism with a large adjustment range and high precision, in view of the above-mentioned technical status.

[0006] The second technical problem to be solved by this utility model is to provide a range hood with a large adjustment range and high precision, in view of the above-mentioned technical status.

[0007] The technical solution adopted by this utility model to solve the first technical problem mentioned above is: a smoke baffle opening and closing mechanism, characterized in that it includes...

[0008] Mounting plate;

[0009] The motor is mounted on the aforementioned mounting plate and has a drive output shaft;

[0010] The connecting cylinder has an axially expandable cavity;

[0011] The telescopic rod is telescopically installed within the telescopic cavity of the aforementioned connecting cylinder and is rotatable;

[0012] A connecting sleeve is provided on the outside of the aforementioned connecting cylinder and can position the telescopic rod on the connecting cylinder;

[0013] The connecting rod has one end connected to the aforementioned active output shaft and the other end connected to the aforementioned connecting cylinder; and

[0014] The smoke baffle is rotatably connected to the aforementioned mounting plate at its upper end, and has a movably connected connector at its lower end, which is rotatably connected to the aforementioned telescopic rod.

[0015] The preferred fit between the connecting sleeve, the telescopic rod, and the connecting cylinder is as follows: the telescopic rod has multiple positioning grooves or positioning holes spaced apart along its length; the connecting cylinder has a through hole; and the inner ring of the connecting sleeve has an elastic snap-fit ​​connector that passes through the aforementioned through hole and engages with the positioning groove or positioning hole for positioning.

[0016] The preferred configuration for the rotatable engagement between the connector and the telescopic rod is as follows: the connector forms a connecting cavity, and the end of the telescopic rod extends into the connecting cavity of the connector and achieves rotatable engagement through ball bearings.

[0017] The preferred assembly structure of the connecting sleeve and the connecting cylinder is as follows: the inner side of the connecting sleeve is provided with a connecting part, which is adapted to the connecting hole of the connecting cylinder.

[0018] The snap-fit ​​connector preferably adopts the following structure: the connecting sleeve has a built-in groove, in which a spring piece is provided, and the snap-fit ​​connector is formed on the outer side of the spring piece.

[0019] Furthermore, a support plate is provided on the inner side of the smoke baffle. The upper end of the support plate is rotatably connected to the mounting plate, and the lower end is connected to the connector.

[0020] The technical solution adopted by this utility model to solve the second technical problem mentioned above is: a range hood, characterized in that it includes a body and a smoke baffle opening and closing mechanism provided on the body, the front end of the aforementioned body has an air inlet, and the smoke baffle is rotatably provided on the upper end of the air inlet.

[0021] Furthermore, an oil cup is provided at the lower end of the machine body.

[0022] Furthermore, the air outlet of the machine body is equipped with a one-way air guide hood.

[0023] Furthermore, the air inlet face of the unit is arranged at an angle, preferably a near-suction range hood.

[0024] Compared with the prior art, the advantages of this utility model are: the opening angle of the baffle can be adjusted according to specific requirements, which solves the problems of fixed baffle angle and baffle blocking the viewing angle for users of different heights. At the same time, when cleaning, the back of the baffle and the oil mesh and other parts covered by the baffle can be cleaned without bending over. The overall manufacturing cost is low and the operation is simple. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of an embodiment.

[0026] Figure 2 This is an enlarged schematic diagram of the smoke baffle opening and closing mechanism in the embodiment.

[0027] Figure 3 for Figure 2 Another perspective on the structure.

[0028] Figure 4 This is an enlarged view of the assembly of the connector, telescopic rod, connecting sleeve, and connecting cylinder.

[0029] Figure 5 for Figure 4 The exploded diagram.

[0030] Figure 6 for Figure 5 A magnified view of the connecting sleeve from another perspective.

[0031] Figure 7 This is a diagram showing the state when the smoke baffle is opened at a large angle.

[0032] Figure 8 This is a diagram showing the state when the smoke baffle is opened at a small angle. Detailed Implementation

[0033] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0034] like Figure 1 As shown, the range hood in this embodiment is a near-suction type range hood, and the air inlet face of the body 10 is arranged at an angle. The range hood includes a body 10 and a smoke baffle opening and closing mechanism provided on the body 10. The front end of the body 10 has an air inlet 12, and the smoke baffle 1 is rotatably disposed on the upper end of the air inlet 12. An oil cup 11 is provided at the lower end of the body 10. The air outlet of the body 10 is provided with a one-way air guide hood 13.

[0035] Combination Figures 2-5 As shown, the smoke baffle opening and closing mechanism in this embodiment includes a mounting plate 6, a bracket plate 5, a motor 7, a connecting cylinder 2, a telescopic rod 4, a connecting sleeve 3, a connecting rod 8, and a smoke baffle 1.

[0036] The smoke baffle opening and closing mechanism is mounted on the body 10 via the mounting plate 6, and the motor 7 is mounted on the mounting plate 6 and has an active output shaft 71.

[0037] The connecting cylinder 2 has an axial telescopic cavity, and a through hole 21 is provided on the connecting cylinder 2. The telescopic rod 4 is telescopically located in the telescopic cavity of the connecting cylinder 2 and can rotate. The telescopic rod 4 has multiple positioning holes 42 arranged at intervals along its length.

[0038] The connecting sleeve 3 is located on the outside of the connecting cylinder 2 and can position the telescopic rod 4 on the connecting cylinder 2; one end of the connecting rod 8 is connected to the active output shaft 71; the other end is connected to the connecting cylinder 2.

[0039] The upper end of the smoke baffle 1 is rotatably connected to the mounting plate 6, and the lower end is movably provided with a connector 41 via a bracket plate 5. The connector 41 is rotatably connected to the telescopic rod 4. The connector 41 forms a connecting cavity, and the end of the telescopic rod 4 extends into the connecting cavity of the connector 41 and is rotated through a ball bearing 43.

[0040] Combination Figure 6 As shown, the inner side of the connecting sleeve 3 has a protruding connecting part 31, which is adapted to the connecting hole (not shown in the figure) of the connecting cylinder 2. The connecting sleeve 3 has an internal groove 32, in which a spring piece 9 is provided, and a snap-fit ​​connector 91 is formed on the outer side of the spring piece 9. The snap-fit ​​connector 91 passes through the through hole 21 and is snapped into position with the positioning groove or positioning hole 42.

[0041] The bracket plate 5 is located inside the smoke baffle plate 1. The upper end of the bracket plate 5 is rotatably connected to the mounting plate 6, and the lower end is connected to the connector 41.

[0042] When the range hood is powered on, the motor drives the connecting rod, and the smoke baffle opens to angle A. Figure 1 As shown. At this point, the user can manually rotate the telescopic rod according to their height, the fume extraction effect, and cleaning needs. The connecting sleeve will then slide out along the positioning hole of the telescopic rod. The user can then manually push the smoke baffle to the desired position and rotate the telescopic rod until the spring clip returns to the corresponding positioning hole. At this point, the smoke baffle expands and is fixed at angle B (e.g., ...). Figure 7 (as shown); or reduced to angle C (as shown). Figure 8 (As shown).

[0043] The telescopic rod is designed with multiple positioning holes, which users can adjust to different positions according to their needs to meet the requirements of opening at multiple angles. It can be opened to the maximum extent that the smoke baffle is flush with the top plate.

[0044] The baffle opening and closing mechanism is installed on the top plate, which can raise the rotation center to the top of the range hood. Using a fixed-point rotation method, the baffle can be opened at multiple angles without interfering with the cabinet. This range hood can automatically adjust the opening angle of the baffle according to height, smoke extraction effect, and cleaning experience, solving the problems of fixed baffle angle and baffle obstructing the view for users of different heights. At the same time, during cleaning, the back of the baffle and the oil filter and other parts covered by the baffle can be cleaned without bending over. The overall manufacturing cost is low and the operation is simple.

Claims

1. A smoke baffle opening and closing mechanism, characterized in that... include Mounting plate (6); The motor (7) is mounted on the aforementioned mounting plate (6) and has an active output shaft (71); The connecting cylinder (2) has an axial telescopic cavity; The telescopic rod (4) is telescopically installed in the telescopic cavity of the aforementioned connecting cylinder (2) and can rotate; A connecting sleeve (3) is provided on the outside of the aforementioned connecting cylinder (2) and can position the telescopic rod (4) on the connecting cylinder (2); The connecting rod (8) is connected at one end to the aforementioned active output shaft (71); and at the other end to the aforementioned connecting cylinder (2); and The smoke baffle (1) is rotatably connected to the aforementioned mounting plate (6) at its upper end, and is movably provided with a connector (41) at its lower end, which is rotatably connected to the aforementioned telescopic rod (4).

2. The smoke baffle opening and closing mechanism according to claim 1, characterized in that... The connector (41) forms a connecting cavity, and the end of the telescopic rod (4) extends into the connecting cavity of the connector (41) and achieves rotational engagement through the ball bearing (43).

3. The smoke baffle opening and closing mechanism according to claim 1, characterized in that... The telescopic rod (4) has multiple positioning grooves or positioning holes (42) spaced apart along its length. The connecting cylinder (2) has a through hole (21). The inner ring of the connecting sleeve (3) has an elastic snap-fit ​​connector (91). The snap-fit ​​connector (91) passes through the aforementioned through hole (21) and engages with the positioning groove or positioning hole (42) for positioning.

4. The smoke baffle opening and closing mechanism according to claim 3, characterized in that... The inner side of the connecting sleeve (3) is provided with a connecting part (31), which is adapted to the connecting hole of the connecting cylinder (2).

5. The smoke baffle opening and closing mechanism according to claim 3, characterized in that... The connecting sleeve (3) has a built-in groove (32) in which a spring piece (9) is provided, and the outer side of the spring piece (9) forms the snap connector (91).

6. The smoke baffle opening and closing mechanism according to claim 1, characterized in that... The smoke baffle (1) has a support plate (5) on its inner side. The upper end of the support plate (5) is rotatably connected to the mounting plate (6), and the lower end is connected to the connector (41).

7. A range hood having the smoke baffle opening and closing mechanism according to any one of claims 1 to 6, characterized in that... Includes a body (10) and a smoke baffle opening and closing mechanism provided on the body (10). The front end of the aforementioned body (10) has an air inlet (12), and the smoke baffle (1) is rotatably provided on the upper end of the air inlet (12).

8. The range hood according to claim 7, characterized in that... The lower end of the body (10) is provided with an oil cup (11).

9. The range hood according to claim 7, characterized in that... The air outlet of the body (10) is equipped with a one-way air guide hood (13).

10. The range hood according to claim 7, characterized in that... The air inlet face of the body (10) is arranged at an angle.

Images