Lock catch board for oil filter screen of range hood

Abstract

A lock catch plate for an oil filter screen of a range hood comprises a bottom cover and an upper cover which are buckled with each other, a containing area is defined between the bottom cover and the upper cover, a sliding plate is installed in the containing area in a sliding mode, and the front end of the sliding plate extends outwards to form a spring bolt plate; a first mounting groove is formed in the middle of the upper cover, a hinge seat is arranged on the sliding plate corresponding to the position of the first mounting groove, the buckle plate is mounted in the first mounting groove and hinged to the sliding plate through the hinge seat, the buckle plate is swung to push the sliding plate to slide in the containing area, and the spring bolt plate is indirectly driven to move. Compared with the prior art, the lock catch plate for the oil filter screen has the advantages that a plurality of matching mechanisms such as the bottom cover, the upper cover, the sliding plate, the buckle plate and the spring bolt plate are arranged in the lock catch plate for the oil filter screen, a large connecting contact surface is achieved, and therefore a larger contact surface is formed between the oil filter screen body and the lock catch plate, the firmness of overall fixing is greatly improved, and the service life of the oil filter screen is prolonged. And the loosening problem caused by a too small contact surface is avoided.

Description

Technical Field

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

[0002] As an essential kitchen appliance, the range hood's filter screen is primarily used to capture cooking fumes and grease, thus maintaining a clean kitchen environment. However, because cooking fumes contain a large amount of grease, the filter screen easily accumulates grease after prolonged use. Therefore, the installation, disassembly, and cleaning of the filter screen have become pressing issues in its design and use. To address this, existing technologies commonly employ locking clips as the connection device between the filter screen and the range hood, aiming to facilitate the fixing and replacement of the filter screen.

[0003] Existing range hood filter clips typically employ a simple, small design, primarily consisting of a basic locking mechanism and matching connecting components. Due to their small size, the connection area between the locking mechanism and the filter body is relatively limited. In actual use, vibration, temperature changes, and repeated disassembly and assembly can cause insufficient stability in the friction and locking force between the locking mechanism and the filter body, resulting in inadequate connection strength. This design flaw makes the locking mechanism prone to loosening over time, affecting the filter's fixation and potentially leading to displacement or detachment, thus reducing the overall safety and cleaning effectiveness of the range hood.

[0004] Furthermore, the existing locking mechanism design typically fails to adequately consider the force distribution and dynamic response of the range hood during use, lacking effective anti-loosening structures and reset mechanisms. This significantly reduces the product's stability under harsh environments such as high temperature and high humidity. Due to the small contact area and simple connection mechanism between the oil filter and the locking mechanism, it is difficult to maintain a tight fit under various external forces, further increasing the difficulty of installing and removing the oil filter and the burden on users. Therefore, further improvements are necessary. Utility Model Content

[0005] The purpose of this utility model is to overcome the shortcomings of existing technologies and provide a locking tag for oil filter screens of range hoods that is simple in structure, easy to use, can effectively prevent loosening during long-term use, and improves the installation firmness and safety of the filter screen.

[0006] The purpose of this utility model is achieved in the following way: a locking plate for a range hood oil filter screen, which includes a bottom cover and a top cover that interlock with each other, and the bottom cover and the top cover together form a receiving area. A sliding plate is slidably installed in the receiving area, and a locking tongue plate extends outward from the front end of the sliding plate. A first mounting groove is opened in the middle of the top cover. A hinge seat is provided on the sliding plate corresponding to the position of the first mounting groove. A handle plate is installed in the first mounting groove and is hinged to the sliding plate through the hinge seat. Swinging the handle plate pushes the sliding plate to slide in the receiving area, indirectly driving the locking tongue plate to move.

[0007] Furthermore: a connecting frame extends from the bottom of the upper cover toward the bottom cover, the bottom cover covers the connecting frame, and several buckles are provided on the bottom cover. The buckles engage with the connecting frame to fix the bottom cover and the upper cover together.

[0008] Furthermore: a clamping area is formed by hollowing out the outer contour of the connecting frame and the top cover. The clamping area clamps and fixes the oil filter screen body, thereby realizing the connection between the locking plate and the oil filter screen body.

[0009] Furthermore, the bottom cover and the top cover have connecting seats extending outward from the end facing the locking tongue plate, and the connecting seats extend into the mounting groove of the oil filter screen body frame.

[0010] Furthermore, the latch plate is provided with at least two latches, which are symmetrically distributed on the latch plate from left to right.

[0011] Furthermore: the skateboard is provided with a hinge seat, which is located below the first mounting groove of the upper cover. Hinges are provided on both sides of the handle plate, extending into the hinge seat and hinged thereto. Furthermore: the surface of the handle plate is provided with anti-slip texture.

[0012] Furthermore, a handle groove is provided on the inner end face of the handle plate. Furthermore, a return spring is provided between the sliding plate and the receiving area, and the return spring pushes the locking tongue outwards at all times via the sliding plate.

[0013] Furthermore: a spring seat is provided in the accommodating area, a spring groove is provided on the sliding plate, and a reset push spring is installed between the spring seat and the spring groove.

[0014] The beneficial effects of this utility model are: 1. Simple structure, low production cost, and improved market competitiveness.

[0015] 2. This utility model achieves a larger connection contact surface by incorporating multiple cooperating mechanisms, such as a bottom cover, top cover, sliding plate, handle plate, and locking tongue plate, into the locking plate of the oil filter screen. The connecting frame extending from the bottom of the top cover engages with the buckle on the bottom cover, fixing the bottom cover and top cover as a single unit. This creates a larger contact surface between the oil filter screen body and the locking plate, significantly improving the overall stability and preventing loosening caused by an insufficient contact surface.

[0016] 3. The use of a sliding plate and hinge structure enables the latch plate and the sliding plate to be linked and linked. The swing of the latch plate can push the sliding plate to slide within the receiving area, thereby causing the latch to separate from the range hood and realizing the removal of the filter. Compared with the push-pull type, the lever-type operation is more convenient and faster.

[0017] 4. Anti-slip texture and grooves are provided on the handle plate, which not only improves the feel during operation and enhances the anti-slip performance, but also makes it more convenient and safer for users to install or remove the oil filter screen, effectively reducing the risk of loosening caused by improper operation. Attached Figure Description

[0018] Figure 1 This is a rendering of the final assembly of this utility model.

[0019] Figure 2 This is a schematic diagram of the handle plate in the open state in this utility model.

[0020] Figure 3 , 4 This is an exploded view of the structure of this utility model.

[0021] Figure 5 This is a cross-sectional view of the structure of this utility model.

[0022] Figure 6 This is an assembly drawing of the handle plate and the slide plate in this utility model. Detailed Implementation

[0023] The present invention will be further described in detail below with reference to the accompanying drawings. A locking plate for an oil filter screen of a range hood includes a bottom cover 1 and a top cover 2 that interlock with each other. The bottom cover 1 and the top cover 2 together form a receiving area 3. A sliding plate 4 is slidably installed in the receiving area 3. A locking tongue plate 41 extends outward from the front end of the sliding plate 4. A first mounting groove 21 is provided in the middle of the top cover 2. A hinge seat 42 is provided on the sliding plate 4 corresponding to the position of the first mounting groove 21. A handle plate 5 is installed in the first mounting groove 21 and is hinged to the sliding plate 4 through the hinge seat 42. Swinging the handle plate 5 pushes the sliding plate 4 to slide in the receiving area 3, indirectly driving the locking tongue plate 41 to move.

[0024] In one embodiment: the bottom of the upper cover 2 extends towards the bottom cover 1 with a connecting frame 22, the bottom cover 1 covers the connecting frame 22, and the bottom cover 1 is provided with a plurality of buckles 11, which are fastened to the connecting frame 22 to fix the bottom cover 1 and the upper cover 2 into one piece.

[0025] In one embodiment: a clamping area 12 is formed by hollowing out the outer contour of the connecting frame 22 and the upper cover 2. The clamping area 12 clamps and fixes the oil filter screen body, thereby realizing the connection between the locking plate and the oil filter screen body.

[0026] In one embodiment: the bottom cover 1 and the top cover 2 have a connecting seat 6 extending outward from one end facing the locking tongue plate 41, and the connecting seat 6 extends into the mounting groove of the oil filter screen body frame.

[0027] In one embodiment: at least two latches 43 are provided on the latch plate 41, which are symmetrically distributed on the latch plate 41.

[0028] In one embodiment: the slide plate 4 is provided with a hinge seat 42, which is located below the first mounting groove 21 of the upper cover 2. The handle plate 5 has hinge pins 51 on both sides, which extend into the hinge seat 42 and are hinged thereto. In one embodiment: the surface of the handle plate 5 is provided with anti-slip texture 52.

[0029] In one embodiment, a handle groove 53 is provided on the inner end face of the handle plate 5. In one embodiment, a reset spring 7 is provided between the slide plate 4 and the receiving area 3, and the reset spring 7 pushes the locking tongue 43 to always extend outward through the slide plate 4.

[0030] In one embodiment: a spring seat 31 is provided in the accommodating area 3, a spring groove 44 is provided on the slide plate 4, and a reset push spring 7 is installed between the spring seat 31 and the spring groove 44.

[0031] Working principle

[0032] Initial Fixing State: In this case, the bottom cover 1 and the top cover 2 are interlocked by a connecting frame 22 extending from the bottom of the top cover towards the bottom cover and a buckle 11 on the bottom cover, forming an integrated structure. Simultaneously, a receiving area 3 is formed between the top cover and the bottom cover. The oil filter screen body is tightly clamped by the connecting frame 22 and the clamping area 12 formed by the outer contour of the top cover. Furthermore, the connecting seat 6 is inserted into the mounting groove of the oil filter screen frame, creating a large contact surface between the oil filter screen and the locking plate, thus ensuring a secure and reliable initial fixing state.

[0033] Reset and automatic locking of the locking mechanism: In this case, the slide plate 4 is slidably installed in the receiving area 3, with a locking tongue plate 41 extending from its front end, on which at least two locking tongues 43 are provided symmetrically distributed. A reset push spring 7 is provided between the slide plate 4 and the receiving area 3. With the cooperation of the spring seat 31 and the spring groove 45 on the slide plate, the slide plate 4 is always in the reset state when no external force is applied, ensuring that the locking tongue plate 41 and locking tongues 43 extend stably outward, thereby providing a continuous locking effect on the oil filter screen. This design not only expands the locking contact surface but also effectively prevents loosening caused by long-term use.

[0034] When it is necessary to remove or install the oil filter screen, the user can operate the handle plate 5 located in the first mounting groove 21 in the middle of the upper cover 2. The handle plate 5 is hinged to the slide plate 4 through the hinge seat located on the slide plate 4, and the hinge pins 51 on both sides of the handle plate 5 enter the hinge seat to form a rotation pivot. When the user swings the handle plate 5, it will directly push the slide plate 4 to slide within the receiving area 3, thereby causing the originally extended locking tongue plate 41 to displace and retract its locking contact with the oil filter screen body, thus realizing the removal of the oil filter screen. After the removal or replacement of the oil filter screen is completed, the handle plate 5 resets, and the reset push spring 7 pushes the slide plate 4 back to its original position, causing the locking tongue plate 41 to extend outward again and firmly lock the oil filter screen again.

[0035] Compared with traditional technologies, this structure has the following technical advantages:

[0036] 1. Through the connecting frame and buckle structure between the bottom cover and the top cover, a large contact area is formed between the oil filter screen and the locking plate, which effectively solves the problem of loosening caused by the small size of the locking plate and insufficient connection surface in traditional technology.

[0037] 2. The reset push spring 7 ensures that the slide plate 4 can always automatically reset after disassembly and assembly operations, keeping the locking tongue 43 in the extended state, which enhances the reliability of locking and can work stably even under harsh conditions such as vibration or temperature changes.

[0038] 3. In this utility model, both the bottom cover and the top cover are made of plastic material. Plastic material has excellent corrosion resistance, is easy to mold, and has low production cost, making it suitable for mass production. It also meets the requirements of the overall structure of the range hood's oil filter for aesthetics and sealing. The sliding plate 4 and the handle plate 5 are made of metal, which has high mechanical strength and durability, and can withstand the vibrations, temperature changes, and other external forces generated during repeated disassembly and use, ensuring long-term stable and reliable operation of the structure.

[0039] This combination of materials can fully leverage the functional advantages of each component, while also effectively controlling production costs and enhancing the product's market competitiveness while ensuring normal product use.

[0040] In summary, this utility model, through the coordinated work of multiple structural units, achieves a firm connection and convenient disassembly / reassembly between the oil filter and the range hood while maintaining a compact overall structure. This significantly improves safety and reliability during use, and effectively overcomes the shortcomings of existing technologies where the locking plate is prone to loosening due to its small contact surface.

[0041] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of the claims of this utility model.

Claims

1. A locking plate for an oil fume filter screen, characterized in that: It includes mutually buckled bottom cover (1) and upper cover (2), bottom cover (1) and upper cover (2) between the enclosed formation containing area (3), sliding plate (4) is slidably installed in containing area (3), the front end of the sliding plate (4) extends out the lock tongue plate (41) outside;The upper cover (2) middle part is provided with the first installation slot (21), corresponding the first installation slot (21) position, the hinged seat (42) is arranged on the sliding plate (4), the buckle hand plate (5) is installed in the first installation slot (21), and is hinged with the sliding plate (4) through the hinged seat (42), the swing buckle hand plate (5) pushes the sliding plate (4) and slides in containing area (3), indirectly drives the lock tongue plate (41) movement.

2. The locking plate for the filter screen of the range hood according to claim 1, characterized in that: The bottom of the upper cover (2) extends in the direction of the bottom cover (1) and has a connecting frame (22), the bottom cover (1) covers the connecting frame (22), the bottom cover (1) is provided with a plurality of buckles (11), the buckle (11) is buckled with the connecting frame (22), the bottom cover (1) and the upper cover (2) are fixed as a whole.

3. The locking plate for the filter screen of the range hood according to claim 2, characterized in that: The connecting frame (22) and the outer contour of the upper cover (2) are hollowed out to form a clamping area (12), the clamping area (12) clamps and fixes the oil filter screen body, realizing the connection of the lock plate and the oil filter screen body.

4. The locking plate for the filter screen of the range hood according to claim 1, characterized in that: The bottom cover (1) and the upper cover (2) extend outwardly from one end towards the lock tongue plate (41), and the connecting seat (6) extends into the installation slot of the oil filter screen body frame.

5. The locking plate for the filter screen of the range hood according to claim 1, characterized in that: The lock tongue plate (41) is provided with at least two lock tongues (43), which are symmetrically distributed on the lock tongue plate (41).

6. The locking plate for the filter screen of the range hood according to claim 1, characterized in that: The sliding plate (4) is provided with a hinged seat (42), and the hinged seat (42) is located below the first installation slot (21) of the upper cover (2), and the hinged shaft (51) is provided on both sides of the buckle hand plate (5) and extends into the hinged seat (42) and is hinged therewith.

7. The locking plate for the filter screen of the range hood according to claim 1 or 6, characterized in that: The surface of the buckle hand plate (5) is provided with anti-skid lines (52).

8. The locking plate for the filter screen of the range hood according to claim 1 or 6, characterized in that: The inner end surface of the buckle hand plate (5) is provided with a buckle hand groove (53).

9. The locking plate for the filter screen of the range hood according to claim 1, characterized in that: The sliding plate (4) and the containing area (3) are provided with a reset push spring (7), the reset push spring (7) pushes the lock tongue (43) to always extend outwardly through the sliding plate (4).

10. The locking plate for the filter screen of the range hood according to claim 1 or 9, characterized in that: The containing area (3) is provided with a spring seat (31), and the sliding plate (4) is provided with a spring groove (44), and the reset push spring (7) is installed between the spring seat (31) and the spring groove (44).

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