Range hood filter screen assembly

Abstract

The utility model discloses a range hood filter screen assembly, which relates to the technical field of range hood filter screens, and comprises two connecting pieces which are oppositely arranged in a smoke exhaust pipeline of a range hood, the opposite sides of the two connecting pieces are in bolted connection with a center rod, the surface of the center rod is provided with a mounting sliding groove, and a spiral filter screen is slidably connected in the mounting sliding groove. The two ends of the spiral filter screen abut against the two connecting pieces, limiting grooves are formed in the sides, close to the spiral filter screen, of the connecting pieces, and it can be guaranteed that the connecting pieces can be separated from the center rod when needed in the mode that the two connecting pieces and the center rod are connected through bolts; at the moment, one end, corresponding to the mounting sliding groove, of the surface of the center rod is exposed and loses coverage, the spiral filter screen can be pulled out along the mounting sliding groove to be cleaned or an independent spiral filter screen can be replaced, cleaning is more thorough, meanwhile, only a single damaged spiral filter screen can be replaced, the whole structure does not need to be replaced, and the maintenance cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of range hood filter technology, and in particular to a range hood filter assembly. Background Technology

[0002] Range hoods typically contain multiple filters, each with different functions, but their main purpose is to filter cooking fumes, protect the internal structure of the range hood, and improve air quality. Multiple filters are involved in the process of filtering cooking fumes.

[0003] It is roughly located at the smoke inlet of the range hood, used to initially absorb and filter grease in the fumes and protect the range hood. It is also located at the connection between the range hood and the exhaust pipe, used to absorb and filter grease in the fumes again, to prevent excessive grease from accumulating in the exhaust pipe and flowing back into the range hood, causing malfunctions.

[0004] However, during long-term use, range hoods need to be cleaned regularly to ensure their effectiveness. During the cleaning process, it is especially important to clean the filter. There are various types of filters, among which the spiral filter structure has a high oil-blocking rate and low noise during operation, and does not affect the smoke exhaust volume of the range hood, so it is widely used. However, the spiral filter has a complex structure with small internal spacing, making it difficult for users to completely clean the internal surface during the cleaning process. This results in incomplete cleaning, and long-term accumulation of oil stains may lead to poor smoke exhaust effect and reduced oil blocking effect. Utility Model Content

[0005] To overcome the shortcomings of existing technologies, the purpose of this utility model is to solve the problem that in the existing technology, the spiral filter screen is difficult for operators to clean thoroughly due to the small spacing between the internal structures, resulting in incomplete tilting, continuous accumulation of oil stains, and affecting the performance.

[0006] To solve the problems of the prior art, the technical solution of this utility model is as follows: it includes two connecting parts arranged in opposite directions in the exhaust pipe of a range hood, a central rod is bolted to one side of the two connecting parts, an installation groove is opened on the surface of the central rod, a spiral filter screen is slidably connected inside the installation groove, the two ends of the spiral filter screen abut against the two connecting parts, and a limit groove is opened on the side of the connecting parts near the spiral filter screen.

[0007] Furthermore, the connector is a parallel circular plate structure with perforations arranged in a circular array on its surface. This perforation can cover the inside of the range hood's exhaust pipe, ensuring that all fumes must pass through the connector before they can continue to move.

[0008] Furthermore, the two ends of the central rod abut against two connecting parts, and bolts pass through the connecting parts and are threadedly connected to the central rod, ensuring that the central rod can be stably connected to the two connecting parts and form a cylindrical I-shaped structure with the connecting parts.

[0009] Furthermore, there are several mounting grooves, each of which is a spiral shape adapted to the spiral filter screen. The mounting grooves are arranged in a circular array with the center point of the central rod as the center, ensuring that the spiral filter screen can gradually move along one end of the mounting groove until it is completely inserted into the mounting groove, and will not come into contact with other spiral filters screens during the movement.

[0010] Furthermore, the spiral filter screen has a spiral shape structure. The spiral filter screen is made of metal and coated with an anti-rust and anti-oil coating. A limiting frame is set at the four edges of the spiral filter screen. The limiting frame supports the spiral filter screen and ensures that the spiral filter screen always maintains its shape.

[0011] Furthermore, the spiral filter screen is slidably installed into the mounting groove on the surface of the central rod through the limiting frame around it, and the limiting frame extends into the limiting groove on the surface of the connector and engages with the connector. The limiting grooves on the surfaces of the two connectors engage with the same spiral filter screen, further limiting the position of the spiral filter screen from changing.

[0012] Compared with the prior art, the advantages of this utility model are as follows:

[0013] This invention uses bolts to connect two connectors to a central rod, ensuring that the connectors can be separated from the central rod when needed. If one end of the central rod loses its connection to the connector, the corresponding end of the mounting groove on the surface of the central rod will be exposed and uncovered. At the same time, the corresponding end of the spiral filter screen in the mounting groove will be freed from the constraint of the limiting groove on the surface of the connector and can move. At this time, the spiral filter screen can be pulled out along the mounting groove for cleaning or a single spiral filter screen can be replaced, making cleaning more thorough. If the spiral filter screen is damaged, only the damaged spiral filter screen can be replaced without replacing the entire structure, reducing maintenance costs. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0015] Figure 2 This is a schematic diagram of the central rod structure of this utility model.

[0016] Reference numerals: 1. Connector; 2. Center rod; 3. Mounting groove; 4. Spiral filter screen; 5. Limiting groove. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0018] like Figure 1-2 As shown, a range hood filter assembly includes two connectors 1 arranged facing each other inside the range hood exhaust pipe. The connectors 1 are circular plate-shaped structures that are parallel to each other, and the surface is provided with perforations in a circular array. They can cover the inside of the range hood exhaust pipe to ensure that all the oil fumes must pass through the connectors 1 before they can continue to move.

[0019] Two connecting parts 1 are bolted to a central rod 2 on opposite sides. The two ends of the central rod 2 abut against the two connecting parts 1. The bolts pass through the connecting parts 1 and are threaded to the central rod 2, ensuring that the central rod 2 can stably connect the two connecting parts 1 and form a cylindrical I-shaped structure with the connecting parts 1. The surface of the central rod 2 is provided with an installation groove 3.

[0020] The mounting groove 3 is internally connected to a spiral filter screen 4. There are several mounting grooves 3, each of which is spirally designed to fit the spiral filter screen 4. The mounting grooves 3 are arranged in a circular array with the center point of the central rod 2 as the center, ensuring that the spiral filter screen 4 can gradually move along one end of the mounting groove 3 until it is completely inside the mounting groove 3, and will not come into contact with other spiral filter screens 4 during the movement. The spiral filter screen 4 has a spiral shape structure and is made of metal with a rust-proof and oil-proof coating. A limiting frame is set at the four edges of the spiral filter screen 4. The limiting frame supports the spiral filter screen 4 and ensures that the spiral filter screen 4 always maintains its shape.

[0021] The spiral filter screen 4 is abutted at both ends by two connectors 1. A limiting groove 5 is opened on the side of the connector 1 near the spiral filter screen 4. The spiral filter screen 4 is slidably installed into the mounting groove 3 on the surface of the central rod 2 through the limiting frame around it. The limiting frame extends into the limiting groove 5 on the surface of the connector 1 and engages with the connector 1. The limiting grooves 5 on the surfaces of the two connectors 1 engage with the same spiral filter screen 4, further limiting the position of the spiral filter screen 4 so that it does not change.

[0022] Working principle description: When cleaning or maintenance is required, disconnect the connection with the range hood exhaust pipe through connector 1, then select one side of connector 1 and loosen the bolts to separate the connection between connector 1 on this side and the center rod 2. Then the operator pulls out the spiral filter screen 4 along the installation slide 3. After the spiral filter screen 4 is pulled out, it can be cleaned or replaced at the same time as connector 1 and center rod 2.

[0023] After cleaning or replacement, the operator first installs connector 1 as a support part at one end of the central rod 2 using bolts. Then, the spiral filter 4 is inserted along the mounting groove 3 on the surface of the central rod 2, ensuring that the bottom of the spiral filter 4 enters the limiting groove 5 on the surface of connector 1, which serves as the support part. After the spiral filter 4 is fully installed and reset, another connector 1 is installed as a covering part on the other end of the central rod 2. During the installation process, it is ensured that the top of the spiral filter 4 enters the limiting groove 5 on the surface of connector 1, which serves as the covering part. Finally, the entire structure is installed into the exhaust pipe of the range hood using connector 1.

[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A range hood filter assembly, comprising two connectors (1) arranged facing each other within the range hood exhaust pipe, characterized in that: The two connecting parts (1) are bolted to a central rod (2) on opposite sides. The surface of the central rod (2) is provided with an installation groove (3). A spiral filter screen (4) is slidably connected inside the installation groove (3). The two ends of the spiral filter screen (4) abut against the two connecting parts (1). A limiting groove (5) is provided on the side of the connecting part (1) near the spiral filter screen (4).

2. The range hood filter assembly according to claim 1, characterized in that: The connector (1) is a circular plate structure that is parallel to each other, and the surface is provided with perforations in a circular array.

3. The range hood filter assembly according to claim 1, characterized in that: The two ends of the central rod (2) abut against two connecting parts (1), and the bolts pass through the connecting parts (1) and are threadedly connected to the central rod (2).

4. The range hood filter assembly according to claim 1, characterized in that: There are several mounting grooves (3), each mounting groove (3) is a spiral arrangement adapted to the spiral filter screen (4), and several mounting grooves (3) are arranged in a ring array with the center point of the central rod (2) as the center.

5. The range hood filter assembly according to claim 1, characterized in that: The spiral filter (4) has a spiral shape structure. The spiral filter (4) is made of metal and coated with an anti-rust and anti-oil coating. A limiting frame is set at the four edges of the spiral filter (4).

6. The range hood filter assembly according to claim 5, characterized in that: The spiral filter (4) is slidably installed into the mounting groove (3) on the surface of the central rod (2) by the limiting frame around it, and the limiting frame extends into the limiting groove (5) on the surface of the connector (1) and engages with the connector (1).

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