Oil filter screen lock catch structure of range hood

Abstract

A lock catch structure of an oil filter screen of a range hood comprises a first screen plate and a second screen plate, the edge of the first screen plate is folded towards the reverse direction of the first screen plate to form a first frame, and the edge of the second screen plate is folded towards the direction of the first screen plate to form a second frame; a lock catch hole is formed in the first screen plate, the edge of the lock catch hole is turned inwards to form a positioning table, and the positioning table is higher than the inner surface of the first screen plate. A sliding groove is formed in the middle of the card locking buckle, the positioning table is sleeved with the sliding groove, and the sliding groove slides in the direction of the positioning table. A spring bolt is arranged at the top of the card locking buckle and extends out of the first frame and the second frame; and an elastic device is arranged between the card locking buckle and the first screen plate or the second screen plate and pushes the card locking buckle to move towards the spring bolt, so that the spring bolt is always ejected outwards.

Description

Technical Field

[0001] This utility model relates to a range hood accessory, specifically a range hood oil filter screen locking structure. Background Technology

[0002] With the improvement of people's living standards, the use of kitchen appliances has become increasingly popular. Range hoods, as important smoke extraction devices in kitchens, are widely used in homes and the catering industry. The grease filter in a range hood is one of the key components, mainly used to filter oil fumes and prevent grease from entering the exhaust duct and causing blockages or contamination. However, the cleanliness and aesthetics of the grease filter have always been a focus for users.

[0003] In existing technologies, oil filter screens are typically fixed using a snap-lock mechanism. To install the snap-lock, multiple mounting holes need to be drilled in the screen plate, and the snap-lock is then secured to the screen plate using screws or clips. This structure has the following disadvantages:

[0004] 1. Accumulation of dirt and grime: Due to the multiple installation holes on the front of the filter screen, grease and dirt from cooking fumes easily accumulate in these holes during use, forming unsanitary corners that are difficult to clean and affect the filtration effect and service life of the oil filter screen.

[0005] 2. Difficult to clean: The grease inside the holes is not easily removed by detergents or cleaning tools. Long-term accumulation will produce odors, breed bacteria, and affect the hygiene of the kitchen environment.

[0006] 3. Poor aesthetics: Multiple holes on the front of the screen disrupt the overall flatness and aesthetics of the oil filter, affecting the user's sensory experience of the product and failing to meet the aesthetic requirements of modern homes.

[0007] 4. Complex structure: Precise drilling is required on the mesh panel, increasing the complexity of the manufacturing process and production costs. Furthermore, the installation and removal of the locking tag are cumbersome, hindering daily maintenance and cleaning for users.

[0008] In conclusion, the existing oil filter locking structure suffers from problems such as difficulty in cleaning, poor hygiene, insufficient aesthetics, and high manufacturing costs, failing to meet users' demands for high-quality kitchen appliances. Therefore, further improvements are necessary. Utility Model Content

[0009] The purpose of this utility model is to overcome the shortcomings of existing technologies and provide a simple, easy-to-use, neat and beautiful, and easy-to-clean oil filter screen locking structure for range hoods.

[0010] The purpose of this utility model is achieved through the following means: a range hood filter screen locking structure, which includes a first screen plate and a second screen plate, the edge of the first screen plate is folded back towards the first screen plate to form a first frame, and the edge of the second screen plate is folded back towards the first screen plate to form a second frame;

[0011] The first mesh plate and the second mesh plate are fastened and overlapped, the second frame is covered inside the first frame, and the second frame is supported on the inner surface of the first mesh plate.

[0012] The first mesh plate has a locking hole, and the edge of the locking hole is turned inward to form a positioning platform, which is set higher than the inner surface of the first mesh plate.

[0013] It also includes a locking buckle, which has a groove in the middle, and a positioning platform is fitted inside the groove and slides along the direction of the positioning platform;

[0014] The lock buckle is provided with a locking tongue at the top, which extends beyond the first and second borders;

[0015] An elastic device is provided between the lock buckle and the first or second mesh plate. The elastic device pushes the lock buckle toward the locking tongue, so that the locking tongue always pops outward.

[0016] Furthermore, the positioning platform is perpendicular to the inner surface of the first mesh plate, and a positioning pressure plate extends laterally on the positioning platform, covering the surface of the lock buckle.

[0017] Furthermore, the positioning platform and slide are rectangular in shape.

[0018] Furthermore, the positioning platform is formed by stamping the first mesh plate body material.

[0019] Furthermore: the elastic device is a tension spring, a fixed tension spring seat is provided on the first mesh plate, and a movable tension spring seat is provided on the lock buckle. The two ends of the tension spring are respectively fixed on the fixed tension spring seat and the movable tension spring seat, and the tension spring pushes the lock buckle to move in the locking direction.

[0020] Furthermore, two tension springs are provided, symmetrically distributed on both sides of the lock buckle.

[0021] Furthermore, the lock buckle is provided with a handle plate that extends into the lock hole.

[0022] The beneficial effects of this utility model are: 1. Simple structure, low production cost, and improved market competitiveness.

[0023] 2. The locking buckle in this utility model is slidably connected to the positioning platform via a sliding groove, and achieves automatic locking under the action of an elastic device. Users can easily install and remove the oil filter screen, reducing the difficulty of use and improving the user experience.

[0024] 3. By setting up an elastic device, the locking buckle is always subjected to elastic force, and the locking tongue always pops outward, ensuring that the oil filter screen is stable and reliable during operation, and is not easy to loosen or fall off, thus enhancing the safety and durability of the product.

[0025] 4. The positioning platform is formed by stamping the material at the locking hole position of the first mesh plate, so there is no need to add extra parts or stamping plates, making the surface of the mesh plate complete and beautiful, and easy to clean and maintain later. Attached Figure Description

[0026] Figure 1 , 2 This is a rendering of the final assembly of this utility model.

[0027] Figure 3 This is an exploded view of the structure of this utility model.

[0028] Figure 4 This is a schematic diagram of the structure after the second mesh plate is hidden in this utility model.

[0029] Figure 5 In this utility model Figure 4 Enlarged view of the structure of part A.

[0030] Figure 6 This is an assembly drawing of the locking plate and the first mesh plate in this utility model.

[0031] Figure 7 This is a schematic diagram of the locking tag structure in this utility model. Detailed Implementation

[0032] The present invention will be further described in detail below with reference to the accompanying drawings. A range hood oil filter mesh locking structure includes a first mesh plate 1 and a second mesh plate 2. The edge of the first mesh plate 1 is folded back towards the first mesh plate 1 to form a first frame 3, and the edge of the second mesh plate 2 is folded back towards the first mesh plate 1 to form a second frame 4.

[0033] The first mesh plate 1 and the second mesh plate 2 are fastened and overlapped, the second frame 4 is covered inside the first frame 3, and the second frame 4 is supported on the inner surface of the first mesh plate 1.

[0034] The first mesh plate 1 has a locking hole 5, and the edge of the locking hole 5 is turned inward to form a positioning platform 6. The positioning platform 6 is set higher than the inner surface of the first mesh plate 1.

[0035] It also includes a locking buckle 7, which has a sliding groove 71 in the middle, and the sliding groove 71 is fitted with a positioning platform 6 and slides along the direction of the positioning platform 6;

[0036] The lock buckle 7 is provided with a locking tongue 72 at the top, and the locking tongue 72 extends out of the first frame 3 and the second frame 4;

[0037] An elastic device is provided between the lock buckle 7 and the first mesh plate 1 or the second mesh plate. The elastic device pushes the lock buckle 7 to move towards the locking tongue 72, so that the locking tongue 72 always pops outward.

[0038] In one embodiment: the positioning platform 6 is arranged perpendicularly to the inner surface of the first mesh plate 1, and a positioning pressure plate 61 extends laterally on the positioning platform 6, covering the surface of the lock buckle 7.

[0039] In one embodiment, the positioning platform 6 and the slide 71 are arranged in a rectangular shape.

[0040] In one embodiment: the positioning platform 6 is formed by stamping the body material of the first mesh plate 1.

[0041] In one embodiment: the elastic device is a tension spring 8, a fixed tension spring seat 81 is provided on the first mesh plate 1, and a movable tension spring seat 82 is provided on the lock buckle 7. The two ends of the tension spring 8 are respectively fixed on the fixed tension spring seat 81 and the movable tension spring seat 82, and the tension spring 8 pushes the lock buckle 7 to move in the locking direction.

[0042] In one embodiment: two tension springs 8 are provided, symmetrically distributed on both sides of the lock buckle 7.

[0043] In one embodiment: the lock buckle 7 is provided with a handle plate 73, which extends into the lock hole 5.

[0044] Working principle: This utility model provides a novel oil filter mesh locking structure for range hoods, comprising a first mesh plate 1 and a first frame 3: the edge of the first mesh plate 1 is folded in the opposite direction to form the first frame 3. This folded first frame 3 is located on the back of the first mesh plate 1, increasing the strength and thickness of the mesh plate.

[0045] It also includes a second mesh panel 2 and a second frame 4: the edge of the second mesh panel 2 is folded towards the first mesh panel 1 to form the second frame 4. The second mesh panel 2 is fastened and overlapped with the first mesh panel 1, and the second frame 4 is covered inside the first frame 3, and the second frame 4 is supported on the inner surface of the first mesh panel 1. This design helps to increase the strength of the mesh panels and achieves a tight connection between the mesh panels, ensuring the overall flatness and aesthetics.

[0046] Furthermore, to facilitate the installation and removal of the filter screen from the range hood body, a locking hole 5 is provided on the first mesh plate 1. The edge of the locking hole 5 is turned inward to form a positioning platform 6. The positioning platform 6 is set higher than the inner surface of the first mesh plate 1 to facilitate the installation and sliding of the locking buckle 7.

[0047] The locking buckle 7 has a sliding groove 71 in the middle, which is fitted onto the positioning platform 6, allowing the locking buckle 7 to slide along the positioning platform 6. The positioning platform 6 and the sliding groove 71 are rectangularly arranged, which ensures the stability of the sliding of the locking buckle 7 and limits its sliding stroke.

[0048] Furthermore, a latch 72 is provided at the top of the lock buckle 7, extending beyond the first frame 3 and the second frame 4. A handle plate 73 is provided on the lock buckle 7, extending into the lock hole 5 for easy manual operation by the user.

[0049] To maintain the locking effect on the latch, an elastic device is provided between the lock buckle 7 and the first mesh plate 1. The first mesh plate 1 has a fixed spring seat 81, and the lock buckle 7 has a movable spring seat 82. The two ends of the spring 8 are fixed to the fixed spring seat 81 and the movable spring seat 82, respectively. The spring 8 provides continuous elastic force, pushing the lock buckle 7 towards the latch 72, ensuring the latch 72 is always extended outwards. When unlocking is required, the user can pull the lock buckle 7 using the handle plate 73 to overcome the elastic force of the spring 8, causing the latch 72 to retract. When the oil filter is installed, the entire filter is installed onto the range hood, and the latch 72 engages with the corresponding mounting hole or slot on the range hood, securing the filter. When the user removes the oil filter, they pull the handle plate 73, causing the lock buckle 7 to slide in the opposite direction, and the latch 72 retracts back into the frame. Once the oil filter is released from its locked position on the range hood, the user can remove it for cleaning or replacement.

[0050] Compared to traditional technologies, in this case, the positioning platform and positioning pressure plate used for positioning and guiding the latch are both stamped inward from the material at the latch hole 5 position. Therefore, there is no need to stamp additional connecting parts on the mesh panel body, maintaining the integrity and aesthetics of the mesh panel's shape. This avoids the problem of oil accumulating in the holes of traditional oil filter screens, making it easy to clean and maintaining the hygiene of the oil filter screen. At the same time, the front of the mesh panel is flat and smooth, without excess holes, and its appearance is simple and elegant, meeting the requirements of modern home aesthetics.

[0051] In summary, this utility model, through its ingenious structural design, overcomes the shortcomings of existing oil filter screen locking structures, achieving holeless installation of the oil filter screen and improving aesthetics and ease of cleaning. The sliding engagement between the locking buckle 7 and the positioning platform 6, combined with the elastic device, makes the locking operation simple and highly reliable. This structure not only improves the user experience but also reduces production costs, thus it can be widely promoted and used.

[0052] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A locking structure for an oil filter screen in a range hood, characterized in that: It includes a first mesh plate (1) and a second mesh plate (2). The edge of the first mesh plate (1) is folded back towards the first mesh plate (1) and has a first frame (3). The edge of the second mesh plate (2) is folded back towards the first mesh plate (1) and has a second frame (4). The first mesh plate (1) and the second mesh plate (2) are fastened and overlapped, the second frame (4) is covered inside the first frame (3), and the second frame (4) is supported on the inner surface of the first mesh plate (1); The first mesh plate (1) is provided with a locking hole (5), and the edge of the locking hole (5) is turned inward to form a positioning platform (6). The positioning platform (6) is set higher than the inner surface of the first mesh plate (1). It also includes a lock tag (7), with a groove (71) in the middle of the lock tag (7), and the groove (71) fits the positioning platform (6) inside it and slides along the direction of the positioning platform (6); The lock buckle (7) is provided with a locking tongue (72) at the top, and the locking tongue (72) extends out of the first frame (3) and the second frame (4); An elastic device is provided between the lock buckle (7) and the first mesh plate (1) or the second mesh plate. The elastic device pushes the lock buckle (7) to move towards the lock tongue (72), so that the lock tongue (72) always pops outward.

2. The oil filter screen locking structure for a range hood according to claim 1, characterized in that: The positioning platform (6) is set perpendicular to the inner surface of the first mesh plate (1), and a positioning pressure plate (61) extends laterally on the positioning platform (6), which covers the surface of the lock buckle (7).

3. The oil filter mesh locking structure for a range hood according to claim 1 or 2, characterized in that: The positioning platform (6) and the slide (71) are rectangular in shape.

4. The oil filter screen locking structure for a range hood according to claim 1 or 2, characterized in that: The positioning platform (6) is formed by stamping the body material of the first mesh plate (1).

5. The oil filter mesh locking structure for a range hood according to claim 1, characterized in that: The elastic device is a tension spring (8). A fixed tension spring seat (81) is provided on the first mesh plate (1), and a movable tension spring seat (82) is provided on the lock buckle (7). The two ends of the tension spring (8) are fixed on the fixed tension spring seat (81) and the movable tension spring seat (82) respectively. The tension spring (8) pushes the lock buckle (7) to move in the locking direction.

6. The oil filter screen locking structure for a range hood according to claim 5, characterized in that: The tension spring (8) is provided in two parts, symmetrically distributed on both sides of the lock buckle (7).

7. The oil filter mesh locking structure for a range hood according to claim 1, characterized in that: The lock buckle (7) is provided with a buckle plate (73), which extends into the lock hole (5).

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