Smoke deflector opening and closing structure of range hood

Abstract

A smoke deflector opening and closing structure of a range hood comprises a range hood body, the front end of the range hood body is concavely provided with a smoke collecting cavity, the lower portion of the smoke collecting cavity is covered with a fixed panel, the space between the top of the fixed panel and the top of the smoke collecting cavity is hollowed out to form a smoke inlet, and guide grooves are symmetrically formed in the two sides of the smoke inlet; guide mechanisms are arranged on the two sides of the movable panel and extend into the guide grooves; the range hood further comprises a power mechanism, the power mechanism is connected between the range hood body and the movable panel, and the power mechanism drives the movable panel to move up and down, so that the smoke inlet is opened or closed. The utility model has the beneficial effects that the movable panel can be flatly aligned with the fixed panel after being closed, so that the common problem of panel dislocation in the traditional sliding design is solved, and the overall attractiveness of the product is improved.

Description

Technical Field

[0001] The utility model relates to a range hood, in particular to an opening and closing structure of a smoke guide plate of the range hood. Background Art

[0002] As one of the core appliances in the kitchen, the main function of the range hood is to absorb and filter the fumes generated during cooking to reduce indoor air pollution and improve the comfort of the kitchen environment. To achieve this function, the range hood usually includes a smoke collection chamber and one or more operable movable panels, the latter of which is crucial to achieve efficient smoke extraction.

[0003] In the existing range hood designs, the operation modes of the movable panel are mainly divided into two types: flip-up type and sliding type, and each mode has its inherent advantages and problems.

[0004] Flip-top movable panel: Advantages: easy to operate; intuitive, users can quickly understand how to use it.

[0005] However, it has the following problems: 1. Structural complexity: multiple hinges and support mechanisms are required to realize the flip function. These additional components not only increase the manufacturing cost, but also may affect the internal space utilization and aesthetics of the device. 2. Safety hazards: when the flip cover is opened, the panel protrudes from the outside of the body, which is easy to cause collisions during cooking, especially in kitchens with limited space. 3. Maintenance difficulty: hinges and mechanical arms are prone to grease accumulation, which is relatively difficult to clean and maintain, and may need to be replaced due to wear and tear during long-term use.

[0006] Sliding movable panel: Advantages: relatively simple structure, fewer parts, relatively easy maintenance and operation. However, it has the following problems: 1. Poor aesthetics: when the movable panel is closed, it is often not completely flush with the fixed panel, resulting in inconsistent appearance and visual untidiness. 2. Sealing problem: it is difficult to form a perfect alignment between the movable panel and the fixed panel, which affects its sealing performance and reduces smoking efficiency. Therefore, it is necessary to make further improvements. Utility Model Content

[0007] The purpose of the utility model is to overcome the shortcomings of the existing technology and provide a range hood smoke guide plate opening and closing structure that is simple in structure, easy to use, can simplify mechanical design, reduce costs and maintenance problems caused by complex structure, and at the same time improve safety of use and neatness of appearance.

[0008] The utility model aims to achieve the following objectives: a smoke guide plate opening and closing structure for a range hood, comprising a range hood body, a smoke collecting chamber is concavely arranged at the front end of the range hood body, a fixed panel is installed below the smoke collecting chamber, a smoke inlet is formed by hollowing out between the top of the fixed panel and the top of the smoke collecting chamber, guide grooves are symmetrically arranged on both sides of the smoke inlet, and guide mechanisms are arranged on both sides of the movable panel to extend into the guide grooves;

[0009] It also includes a power mechanism, which is connected between the range hood body and the movable panel. The power mechanism drives the movable panel to move up and down to open or close the smoke inlet.

[0010] Furthermore, the guide groove comprises an upper guide groove and a lower guide groove which are spaced apart from each other, and the guide mechanisms located on both sides of the movable panel extend into the upper guide groove and the lower guide groove respectively to slide.

[0011] Furthermore: the upper guide groove is in a concave arc shape with high sides and low middle.

[0012] Furthermore: the main body of the lower guide groove is in a straight line shape, and an upper convex portion extends obliquely upward from the top.

[0013] Furthermore: the guide mechanism is an upper guide pulley and a lower guide pulley symmetrically installed on both sides of the smoke guide plate, the upper guide pulley extends into the upper guide groove to slide, and the lower guide pulley extends into the lower guide groove to slide.

[0014] Furthermore: the upper guide pulley or the lower guide pulley is sleeved on the hinge shaft, the hinge shaft is connected with a base, and the base is fixedly connected to the side end surface of the movable panel.

[0015] Furthermore, the power mechanism is an electric push rod, the main body of the electric push rod is fixed in the range hood body, and the movable rod part of the electric push rod is connected to the movable panel.

[0016] Furthermore: a bottom plate is installed at the bottom of the smoke collecting chamber, a sliding chamber is formed between the bottom plate and the fixed panel, a pulley is slidably installed in the sliding chamber, the middle part of the pulley is connected to the movable rod part of the electric push rod, and the top of the pulley is hinged to the movable panel through a hinge seat.

[0017] Furthermore: a plurality of rollers are arranged on both sides of the pulley, the diameter of the rollers is greater than the thickness of the pulley, and the rollers are located between the bottom plate and the fixed panel and slide.

[0018] Furthermore, a clearance groove is provided on the bottom plate, the electric push rod is installed at the bottom of the bottom plate, and the movable rod part of the electric push rod is connected with a connecting seat passing through the clearance groove and connected with the pulley.

[0019] The beneficial effects of the utility model are: 1. Simple structure, low production cost and improved market competitiveness.

[0020] 2. The utility model simplifies the moving mechanism of the movable panel by using a guide groove and a matching pulley system. Compared with the traditional flip-type or complex sliding system, the present structure reduces the number of parts and mechanical complexity. This simplification not only reduces manufacturing costs, but also reduces maintenance workload, because fewer moving parts mean lower wear and failure rates.

[0021] 3. Since the movement of the movable panel is completely carried out in the guide groove without the need for external structural support, the movable panel will not protrude from the body, thereby significantly reducing the risk of accidental impact on the user during use.

[0022] 4. The movable panel can be aligned with the fixed panel when closed, which solves the common panel misalignment problem in traditional sliding designs and improves the overall appearance of the product.

[0023] 5. The addition of the power mechanism makes it easier to open and close the movable panel. Users can quickly open and close it through simple control operations without manual intervention. This provides great convenience for users, especially in a busy kitchen working environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1-3 It is a schematic diagram of the opening process of the movable panel in the utility model.

[0025] Figure 4 , 5 It is a schematic diagram of the structure after the hidden fixed panel in the utility model.

[0026] Figure 6 It is an assembly diagram of the movable panel and the power mechanism in the utility model.

[0027] Figure 7 , 8 This is a cross-sectional view of the guide mechanism structure when the movable panel is in a closed state in the utility model.

[0028] Fig. 9 , 10 It is a cross-sectional view of the structure of the guide mechanism when the movable panel in the utility model is in a closed state. DETAILED DESCRIPTION

[0029] The present invention will be further described below in conjunction with the accompanying drawings. Figure 1-3As shown, a smoke guide plate opening and closing structure of a range hood comprises a range hood body 1, a smoke collecting chamber 2 is concavely arranged at the front end of the range hood body 1, a fixed panel 3 is installed and covered below the smoke collecting chamber 2, a smoke inlet 4 is hollowed out between the top of the fixed panel 3 and the top of the smoke collecting chamber 2, guide grooves 5 are symmetrically arranged on both sides of the smoke inlet 4, and guide mechanisms are arranged on both sides of the movable panel 6 to extend into the guide grooves 5;

[0030] The range hood further comprises a power mechanism, which is connected between the range hood body 1 and the movable panel 6 , and drives the movable panel 6 to move up and down to open or close the smoke inlet 4 .

[0031] Specific: such as Figure 7-10 As shown, the guide groove 5 includes an upper guide groove 51 and a lower guide groove 52 which are spaced apart from each other. The guide mechanisms located on both sides of the movable panel 6 extend into the upper guide groove 51 and the lower guide groove 52 to slide respectively.

[0032] Specifically, the upper guide groove 51 is in a concave arc shape with high sides and low middle. Specifically, the horizontal gap between the two ends of the upper guide groove and the fixed panel is small, while the gap in the middle is large, so that when the movable panel slides in the upper guide groove, the horizontal gap distance between it and the fixed panel changes in a parabolic manner.

[0033] Specifically, the main body of the lower guide groove 52 is in a straight line shape, and an upper convex portion 53 extends obliquely upward from the top thereof. The upper convex portion 53 is provided so that when the movable panel is closed, the upper convex portion is used to lift the bottom of the movable panel outward, so that the movable panel is flush with the fixed panel.

[0034] Specifically, the guide mechanism is an upper guide pulley 7 and a lower guide pulley 71 symmetrically installed on both sides of the smoke guide plate. The upper guide pulley 7 extends into the upper guide groove 51 to slide, and the lower guide pulley 71 extends into the lower guide groove 52 to slide.

[0035] Specifically, the upper guide pulley 7 or the lower guide pulley 71 is sleeved on the hinge shaft 72 , and the hinge shaft 72 is connected to a base 73 , and the base 73 is fixedly connected to the side end surface of the movable panel 6 .

[0036] Specifically, the power mechanism is an electric push rod 8 , the main body of the electric push rod 8 is fixed in the range hood body 1 , and the movable rod part of the electric push rod 8 is connected to the movable panel 6 .

[0037] Specifically: a bottom plate 9 is installed at the bottom of the smoke collecting chamber 2, a sliding cavity is formed between the bottom plate 9 and the fixed panel 3, a pulley 10 is slidably installed in the sliding cavity, the middle part of the pulley 10 is connected to the movable rod part of the electric push rod 8, and the top of the pulley 10 is hinged to the movable panel 6 through a hinge seat 11.

[0038] Specifically, a plurality of rollers 12 are arranged on both sides of the pulley 10 , the diameter of the rollers 12 is greater than the thickness of the pulley 10 , and the rollers 12 are located between the bottom plate 9 and the fixed panel 3 to slide.

[0039] Specifically: a clearance groove 91 is opened on the bottom plate 9 , and the electric push rod 8 is installed at the bottom of the bottom plate 9 . The movable rod part of the electric push rod 8 is connected with a connecting seat 92 which passes through the clearance groove 91 and is connected with the pulley 10 .

[0040] Working principle: The smoke guide plate opening and closing structure of the range hood of the utility model is composed of a range hood body 1, wherein the front end of the range hood body is concavely provided with a smoke collecting chamber 2. A fixed panel 3 is installed below the smoke collecting chamber, and a smoke inlet 4 is formed by hollowing out the top of the fixed panel and the top of the smoke collecting chamber. This design utilizes the structure of the range hood itself to improve the overall smoke extraction efficiency, while providing necessary structural support to ensure stable operation of the equipment.

[0041] In particular, in the present invention, guide grooves 5 are symmetrically arranged on both sides of the smoke inlet 4, and guide mechanisms are arranged on both sides of the movable panel 6 to extend into the guide grooves. The guide grooves are designed as an upper guide groove 51 and a lower guide groove 52, wherein the upper guide groove 51 is a concave arc shape with high sides and low middle.

[0042] The main body of the lower guide groove 52 is in a straight line shape, and an upper convex portion 53 extends obliquely upward from the top thereof. This allows the upper guide pulley to synchronously run to the highest point of the upper guide groove 51 when the lower guide pulley of the movable panel runs into the upper convex portion 53. Under the unique trajectory guiding effect of the upper convex portion 53 and the upper guide groove 51, the movable panel moves outward as a whole to be flush with the fixed panel, and at the same time closes the smoke inlet.

[0043] When the user needs to open the smoke inlet, the power mechanism pulls the movable panel downward. Under the action of the upper and lower guide grooves, the movable panel will first sink downward in the initial opening stage, forming an upper and lower error with the fixed panel. Then the movable panel continues to move downward and overlaps the back of the fixed panel, thereby achieving the purpose of opening the smoke inlet.

[0044] The double guide groove design makes the movable panel more stable when opening and closing, reduces friction and wear, and thus extends the service life of the equipment. This structure not only ensures the smooth movement of the movable panel, but also ensures precise alignment during the opening and closing operation, avoiding the misalignment problem in traditional sliding designs.

[0045] Further: The power mechanism in this case plays a core role in the utility model, and the mechanism is connected between the range hood body and the movable panel. The power mechanism is an electric push rod 8, the main body of which is fixed in the range hood body, and the movable rod part is connected to the movable panel. The introduction of the electric push rod not only simplifies the user's operation process, and the precise opening and closing of the movable panel can be achieved through simple button control, but also enhances the safety of the whole machine. Since the opening and closing of the movable panel is completely carried out by the embedded mechanical device, the safety risk during the operation is greatly reduced.

[0046] Compared with the traditional complex structure with multiple parts, the utility model significantly simplifies the internal structure, reduces failure points, and reduces production and maintenance costs by integrating the electric push rod and the guide groove mechanism.

[0047] Further: In order to make the power transmission between the movable panel and the electric push rod more stable and efficient, a bottom plate 9 is installed at the bottom of the smoke collecting chamber 2 in this case, and a sliding chamber is formed between the bottom plate 9 and the fixed panel 3. A pulley 10 is slidably installed in the sliding chamber, and the middle part of the pulley 10 is connected to the movable rod part of the electric push rod 8. The top of the pulley 10 is hinged to the movable panel 6 through a hinge seat 11, and a plurality of rollers 12 are arranged on both sides of the pulley 10. The diameter of the roller 12 is greater than the thickness of the pulley 10, and the roller 12 is located between the bottom plate 9 and the fixed panel 3 to slide. Therefore, when the electric push rod pushes the pulley to move, the pulley pushes the movable panel to move through the hinge seat, and the swing of the hinge seat is used to make up for the angle difference between the movable panel and the pulley. At the same time, the movable panel and the pulley are subjected to force at two points, which can effectively ensure that the two sides of the panel can be subjected to force synchronously, thereby avoiding the occurrence of jamming between the guide mechanism and the guide groove on both sides of the movable panel, and ensuring the smooth and stable operation of the movable panel.

[0048] Furthermore, since the bottom plate 9 is provided with a clearance groove 91, the electric push rod 8 is installed at the bottom of the bottom plate 9, and the movable rod portion of the electric push rod 8 is connected with a connecting seat 92 passing through the clearance groove 91 to be connected with the pulley 10. The bottom plate plays a role in protecting and isolating the electric push rod, preventing oil stains from entering the electric push rod during the use of the range hood and affecting its normal operation, effectively ensuring its long-term stable and efficient operation, so it can be widely promoted and used.

Claims

1. A smoke guide plate opening and closing structure for a range hood, comprising a range hood body (1), a smoke collecting chamber (2) being concavely arranged at the front end of the range hood body (1), a fixed panel (3) being installed and covered below the smoke collecting chamber (2), a smoke inlet (4) being hollowed out between the top of the fixed panel (3) and the top of the smoke collecting chamber (2), and characterized in that: The smoke inlet (4) is symmetrically provided with guide grooves (5), and the movable panel (6) is provided with guide mechanisms extending into the guide grooves (5); It also includes a power mechanism, which is connected between the range hood body (1) and the movable panel (6), and the power mechanism drives the movable panel (6) to move up and down, thereby opening or closing the smoke inlet (4).

2. The smoke guide plate opening and closing structure of a range hood according to claim 1, characterized in that: The guide groove (5) comprises an upper guide groove (51) and a lower guide groove (52) which are spaced apart from each other. The guide mechanisms located on both sides of the movable panel (6) extend into the upper guide groove (51) and the lower guide groove (52) respectively to slide.

3. The smoke guide plate opening and closing structure of a range hood according to claim 2, characterized in that: The upper guide groove (51) is in the shape of a concave arc with high sides and a low middle.

4. The smoke guide plate opening and closing structure of a range hood according to claim 2, characterized in that: The main body of the lower guide groove (52) is in a straight line shape, and an upper convex portion (53) extends obliquely upward from the top thereof.

5. The smoke guide plate opening and closing structure of a range hood according to claim 2, characterized in that: The guide mechanism comprises an upper guide pulley (7) and a lower guide pulley (71) symmetrically mounted on both sides of the smoke guide plate. The upper guide pulley (7) extends into the upper guide groove (51) to slide, and the lower guide pulley (71) extends into the lower guide groove (52) to slide.

6. The smoke guide plate opening and closing structure of a range hood according to claim 5, characterized in that: The upper guide pulley (7) or the lower guide pulley (71) is sleeved on the hinge shaft (72), the hinge shaft (72) is connected to a base (73), and the base (73) is fixedly connected to the side end surface of the movable panel (6).

7. The smoke guide plate opening and closing structure of a range hood according to claim 1, characterized in that: The power mechanism is an electric push rod (8), the main body of the electric push rod (8) is fixed in the range hood body (1), and the movable rod part of the electric push rod (8) is connected to the movable panel (6).

8. The smoke guide plate opening and closing structure of a range hood according to claim 7, characterized in that: A bottom plate (9) is installed at the bottom of the smoke collecting chamber (2), a sliding chamber is formed between the bottom plate (9) and the fixed panel (3), a pulley (10) is slidably installed in the sliding chamber, the middle part of the pulley (10) is connected to the movable rod part of the electric push rod (8), and the top of the pulley (10) is hinged to the movable panel (6) via a hinge seat (11).

9. The smoke guide plate opening and closing structure of a range hood according to claim 8, characterized in that: A plurality of rollers (12) are arranged on both sides of the pulley (10); the diameter of the rollers (12) is greater than the thickness of the pulley (10); and the rollers (12) are located between the bottom plate (9) and the fixed panel (3) for sliding.

10. The smoke guide plate opening and closing structure of a range hood according to claim 8, characterized in that: The base plate (9) is provided with a clearance groove (91), the electric push rod (8) is mounted at the bottom of the base plate (9), and the movable rod portion of the electric push rod (8) is connected to a connecting seat (92) passing through the clearance groove (91) to be connected to the pulley (10).

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