Smoke hood with oil fume purification function

Abstract

The utility model discloses a fume hood with oil fume purification function, concretely relates to fume hood technical field, including cover body, the top center of cover body is fixedly connected with connecting ring, and the outer wall of connecting ring's top is installed with fixed ring, and the outer wall slidingly connected with mobile ring of fixed ring, and the outer wall edge of cover body is fixedly connected with collection ring, the bottom of cover body is provided with adsorption net, and the bottom of adsorption net is installed with collection cover, and the top and bottom of adsorption net all have gap, the outer wall top of connecting ring is installed with a plurality of clamping blocks, and the bottom of fixed ring is provided with the clamping groove corresponding with clamping block, the outer wall of fixed ring is fixedly installed with a plurality of slide rails, and fixed ring is connected with mobile ring slidingly through slide rail, and the inner wall of mobile ring is installed with inclined toothed plate in the corresponding position of clamping groove, the utility model has the advantages of convenient fume hood assembly disassembly, avoid falling off, convenient to the advantage that the oil fume is purified.

Description

Technical Field

[0001] This utility model relates to the field of fume hood technology, specifically to a fume hood with oil fume purification function. Background Technology

[0002] A range hood is a common kitchen appliance. When cooking Chinese food or grilling, a lot of oil fumes are produced. Therefore, it is necessary to use a range hood to extract and exhaust these fumes, thereby reducing oil fume pollution in the kitchen or restaurant and providing a more comfortable cooking and dining environment. Common range hoods are equipped with range hoods near the source of oil fumes to facilitate the collection and gathering of oil fumes.

[0003] An existing fume purifier fume collection hood with publication number CN220152822U has a retaining ring at the top of the hood body. The retaining ring has a retaining groove inside, and a connecting ring is located at the top of the retaining groove. The retaining ring has fixing holes on its periphery, and fixing bolts are installed in the fixing holes on the periphery of the retaining ring. After the fixing bolts are loosened and removed from the fixing holes, the connecting ring can be removed from the retaining ring groove, thus separating the connecting ring from the fume hood body. After cleaning, the worker aligns the connecting ring with the retaining ring groove and snaps it into the groove. The fixing bolt is then screwed into the corresponding fixing hole, with its other end pressed against the groove of the connecting ring. The flat surface of the groove increases the contact area between the connecting ring and the fixing bolt, increasing the stability of the connecting ring, thereby completing the quick disassembly and assembly process.

[0004] The aforementioned existing technology has some defects in practical use. During installation and disassembly, it is necessary to twist the fixing bolts separately to remove and take it off, which is not quick enough. Moreover, the fixing bolts are prone to loosening during long-term use, which may cause accidental detachment. In addition, the structure of the fume hood is simple and lacks a purification treatment structure when collecting oil fumes, which can easily lead to oil fumes being directly transported into the pipes, causing pipe blockage. Furthermore, oil fumes can adhere to the surface of the fume hood and stick to dust, resulting in oil dripping, which affects the kitchen and dining environment. Utility Model Content

[0005] The purpose of this invention is to provide a fume hood with oil fume purification function, which solves the problems of existing fume hoods being inconvenient to install and disassemble and lacking oil fume purification function.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a fume hood with oil fume purification function, comprising a hood body, a connecting ring fixedly connected to the top center of the hood body, a fixing ring installed on the top outer wall of the connecting ring, a movable ring slidably connected to the outer wall of the fixing ring, and a collection ring fixedly connected to the outer edge of the hood body.

[0007] The bottom of the cover is provided with an adsorption net, and a collection cover is installed at the bottom of the adsorption net. There are gaps at both the top and bottom of the adsorption net.

[0008] The top of the outer wall of the connecting ring is equipped with multiple locking blocks, and the bottom of the fixing ring is provided with a locking groove corresponding to the locking blocks.

[0009] The outer wall of the fixed ring is fixedly installed with multiple slide rails, and the fixed ring is slidably connected to the moving ring through the slide rails. The inner wall of the moving ring is equipped with a helical tooth plate at the corresponding position of the slot.

[0010] Preferably, a groove is provided at the center of the collection ring, a filter ring is fixedly connected inside the groove of the collection ring, the side wall of the filter ring is fitted and fixed to the edge of the adsorption net and the outer wall of the collection cover, and the bottom of the outer wall of the collection cover is fixedly connected to the inside of the groove of the collection ring.

[0011] Preferably, the center of the collection hood is inclined upwards, and a through hole is provided at the center of the collection hood; the center of the adsorption net is inclined upwards, and the top center of the adsorption net is closed.

[0012] Preferably, the teeth of the locking block on the outer wall of the connecting ring are tilted to one side, and the teeth of the inclined tooth plate are engaged with the teeth of the locking block.

[0013] Preferably, the top of the card slot is bent to one side, the width of the card slot corresponds to the outer wall size of the card block, and the cross-section of the card block is square.

[0014] Preferably, a compression spring is installed on the top of the movable ring, and the top of the compression spring is fixedly connected to the top of the outer wall of the fixed ring. A groove corresponding to the slide rail is opened on the inner wall of the movable ring.

[0015] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0016] 1. This allows the locking block to move into the slot, enabling the teeth on the side wall of the locking block to mesh with the teeth on the helical toothed plate on the side of the moving ring. The teeth on the side of the locking block and the helical toothed plate form a ratchet structure. The helical toothed plate prevents the teeth on the side of the locking block from disengaging from the teeth on the side of the helical toothed plate, thus preventing the locking block from moving in the opposite direction and preventing the connecting ring from disengaging. At the same time, when disassembly is required, the moving ring can be easily pushed upwards, causing it to move upwards along the slide rail. This causes the moving ring to move upwards, thus moving the helical toothed plate upwards. The helical toothed plate then releases its engagement with the helical teeth on the side wall of the locking block, thereby releasing the restriction on the locking block. The connecting ring can then be easily rotated to move the locking block in the opposite direction, thus easily disengaging the locking block from the slot and releasing the connection between the connecting ring and the fixed ring. This makes it convenient to disassemble, clean, or replace the cover.

[0017] 2. The fumes can easily move upwards through the central hole of the collection hood. Simultaneously, the adsorption mesh effectively blocks and filters the fumes. Furthermore, the fumes can move along the surface of the adsorption mesh towards the edge of the collection hood, passing through the filter ring to the other side of the adsorption mesh. They then move along the adsorption mesh towards the center of the hood, eventually reaching the interior of the connecting ring, thus achieving the extraction of the fumes. The adsorption mesh and filter ring effectively filter the fumes, achieving effective fume purification. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the bottom structure of the cover of this utility model;

[0021] Figure 3 This is a schematic diagram of the internal structure of the cover of this utility model;

[0022] Figure 4 This is a schematic diagram of the connection structure between the connecting ring and the fixing ring of this utility model;

[0023] Figure 5 This is a schematic diagram of the external structure of the fixing ring of this utility model.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Cover body; 101. Adsorption net; 102. Collection cover; 2. Connecting ring; 201. Locking block; 3. Fixing ring; 301. Locking groove; 302. Slide rail; 4. Moving ring; 401. Slanted toothed plate; 402. Compression spring; 5. Collection ring; 501. Filter ring. Detailed Implementation

[0026] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0027] This utility model provides, for example Figure 1-5The fume hood shown includes a hood body 1. A connecting ring 2 is fixedly connected to the top center of the hood body 1. A fixing ring 3 is installed on the top outer wall of the connecting ring 2. A movable ring 4 is slidably connected to the outer wall of the fixing ring 3. A collection ring 5 is fixedly connected to the outer edge of the hood body 1. An adsorption net 101 is provided at the bottom of the hood body 1. A collection cover 102 is installed at the bottom of the adsorption net 101. There are gaps at the top and bottom of the adsorption net 101. Multiple locking blocks 201 are installed on the top of the outer wall of the connecting ring 2. A locking groove 301 corresponding to the locking block 201 is opened at the bottom of the fixing ring 3. Multiple slide rails 302 are fixedly installed on the outer wall of the fixing ring 3. The fixing ring 3 is slidably connected to the movable ring 4 through the slide rails 302. A beveled tooth plate 401 is installed on the inner wall of the movable ring 4 at the position corresponding to the locking groove 301.

[0028] The locking block 201 moves into the slot 301, allowing the teeth on the side wall of the locking block 201 to mesh with the teeth on the helical toothed plate 401 on the side of the moving ring 4. The helical teeth on the side of the locking block 201 and the helical toothed plate 401 form a ratchet structure, which prevents the locking block 201 from sliding backward and avoids the teeth on the side of the locking block 201 from disengaging from the teeth on the side of the helical toothed plate 401. This prevents the locking block 201 from moving backward and avoids it from disengaging from the slot 301, thus maintaining the stable connection between the connecting ring 2 and the fixed ring 3. Furthermore, this prevents the locking block 201 from disengaging from the slot 301, ensuring the connection is stable and allowing for disassembly when necessary. During disassembly, the moving ring 4 can be easily pushed upwards, causing it to move along the slide rail 302 upwards. This causes the moving ring 4 to move the helical tooth plate 401 upwards, releasing the helical tooth plate 401 from its engagement with the helical teeth on the side wall of the locking block 201. This releases the locking block 201 from its constraint, allowing the connecting ring 2 to be easily rotated to move the locking block 201 in the opposite direction. This facilitates the removal of the locking block 201 from the inside of the slot 301, thus releasing the connection between the connecting ring 2 and the fixing ring 3. This makes it convenient to disassemble, clean, or replace the cover 1.

[0029] The oil fumes move upward through the central hole of the collection hood 102. Simultaneously, due to the blocking effect of the adsorption net 101, the oil fumes are easily blocked and filtered. Furthermore, the oil fumes can move along the surface of the adsorption net 101 towards the bottom edge of the collection hood 102, thereby reaching the other side of the adsorption net 101 through the filter ring 501, and then moving along the adsorption net 101 towards the center of the hood 1. Finally, they move through the center of the hood 1 into the interior of the connecting ring 2, thus achieving the extraction of the fumes. The oil fumes can be effectively filtered through the adsorption net 101 and the filter ring 501, effectively purifying the oil fumes.

[0030] like Figure 2 , Figure 3As shown, a groove is formed at the center of the collecting ring 5, and a filter ring 501 is fixedly connected inside the groove of the collecting ring 5. The sidewall of the filter ring 501 is fitted and fixed to the outer edge of the adsorption net 101 and the collecting cover 102. The bottom of the outer wall of the collecting cover 102 is fixedly connected to the groove of the collecting ring 5. The center of the collecting cover 102 is inclined upwards, and a through hole is formed at the center of the collecting cover 102. The center of the adsorption net 101 is inclined upwards, and the top center of the adsorption net 101 is closed. Due to the obstruction of the adsorption net 101, This device allows for convenient blocking and simultaneous filtration and adsorption of oil fumes. The oil fumes can also move along the surface of the adsorption net 101 to the bottom edge of the collection hood 102, thereby passing through the filter ring 501 to the other side of the adsorption net 101, and then moving along the adsorption net 101 towards the center of the hood 1. Finally, it moves through the center of the hood 1 to the inside of the connecting ring 2, thus achieving the extraction of flue gas. It can effectively filter oil fumes through the adsorption net 101 and the filter ring 501, effectively purifying oil fumes.

[0031] like Figure 4 , Figure 5 As shown, the teeth of the locking block 201 on the outer wall of the connecting ring 2 are tilted to one side, and the teeth of the helical tooth plate 401 are engaged with the teeth of the locking block 201. The top of the slot 301 is bent to one side, and the width of the slot 301 corresponds to the outer wall dimension of the locking block 201. A compression spring 402 is installed on the top of the moving ring 4, and the top of the compression spring 402 is fixedly connected to the top of the outer wall of the fixed ring 3. A groove corresponding to the slide rail 302 is opened on the inner wall of the moving ring 4. The helical teeth on the side of the locking block 201 move in the tilting direction, thereby realizing... The helical teeth push and compress the helical tooth plate 401 to move. The moving ring 4 can easily deform to make the locking block 201 and the helical tooth plate 401 misaligned, thus facilitating the rotation of the locking block 201. When the locking block 201 rotates in the opposite direction and disengages from the slot 301, the blocking of the helical tooth plate 401 prevents the teeth on the side of the locking block 201 from disengaging from the teeth on the side of the helical tooth plate 401, thereby preventing the locking block 201 from moving in the opposite direction. The locking block 201 is prevented from disengaging from the slot 301, thus maintaining the stable connection between the connecting ring 2 and the fixed ring 3.

[0032] In use, by connecting and fixing the fixing ring 3 to the air inlet of the corresponding suction device, the connecting ring 2 at the top of the cover 1 can be easily moved toward the fixing ring 3, so that the position of the locking block 201 corresponds to the position of the locking groove 301 of the fixing ring 3. This allows the locking block 201 to move into the groove 301, and the teeth on the side wall of the locking block 201 can mesh with the teeth of the inclined tooth plate 401 on the side of the moving ring 4. The inclined teeth on the side of the locking block 201 and the inclined tooth plate 401 form a ratchet structure, which can prevent the locking block 201 from sliding in the opposite direction. Then, by rotating the connecting ring 2, the locking block 201 is rotated and moved toward the inside of the groove 301, so that the inclined teeth on the side of the locking block 201 move in its inclined direction, thereby realizing that the inclined teeth push and squeeze the inclined tooth plate 401 to move. The moving ring 4 can easily deform to make the locking block 201 and the inclined tooth plate 401 misaligned, thus facilitating the rotation of the locking block 201. When the locking block 201 rotates in the opposite direction... When the block 201 disengages from the slot 301, the obstruction of the helical toothed plate 401 prevents the teeth on the side of the block 201 from disengaging from the teeth on the side of the helical toothed plate 401, thus preventing the block 201 from moving in the opposite direction and preventing it from disengaging from the slot 301. This maintains the stable connection between the connecting ring 2 and the fixing ring 3. When disassembly is required, the moving ring 4 can be easily pushed upwards, causing it to move upwards along the slide rail 302. This causes the moving ring 4 to move the helical toothed plate 401 upwards, releasing the helical toothed plate 401 from engaging with the helical teeth on the side wall of the block 201. This releases the block 201 from its restraints, allowing the connecting ring 2 to be easily rotated to move the block 201 in the opposite direction. This facilitates the disengagement of the block 201 from the slot 301, thus releasing the connection between the connecting ring 2 and the fixing ring 3. This makes it convenient to disassemble, clean, or replace the cover 1.

[0033] During use, the fumes can easily move upwards through the central hole of the collection hood 102. Simultaneously, due to the blocking effect of the adsorption net 101, the fumes are easily blocked and filtered. Furthermore, the fumes can move along the surface of the adsorption net 101 towards the bottom edge of the collection hood 102, thus passing through the filter ring 501 to the other side of the adsorption net 101, and then moving along the adsorption net 101 towards the center of the hood 1. Finally, they move through the center of the hood 1 into the connecting ring 2, achieving the extraction of fumes. The adsorption net 101 and filter ring 501 effectively filter the fumes, allowing them to move upwards through the central hole of the collection hood 102. The adsorption net 101 also effectively blocks the fumes from reaching the bottom edge of the collection hood 102, allowing them to pass through the filter ring 501 and reach the other side of the adsorption net 101. This allows the oil fumes to be blocked and filtered simultaneously. The oil fumes can also move along the surface of the adsorption net 101 to the bottom edge of the collection hood 102, thereby reaching the other side of the adsorption net 101 through the filter ring 501, and then moving along the adsorption net 101 to the center of the hood 1, and then moving through the center of the hood 1 to the inside of the connecting ring 2, thus achieving the extraction of the fumes. The adsorption net 101 and filter ring 501 can effectively filter the oil fumes, effectively purifying them. Furthermore, the inclined collection hood 102 and hood 1 allow the oil fumes to move towards the bottom edge when they adhere, so that the grease can fall into the groove in the collection ring 5, preventing it from dripping onto the table or other equipment and maintaining a clean environment.

[0034] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A fume hood with oil fume purification function, comprising a hood body (1), characterized in that: A connecting ring (2) is fixedly connected to the top center of the cover (1), a fixing ring (3) is installed on the top outer wall of the connecting ring (2), a moving ring (4) is slidably connected to the outer wall of the fixing ring (3), and a collecting ring (5) is fixedly connected to the outer edge of the cover (1). The bottom of the cover (1) is provided with an adsorption net (101), and a collection cover (102) is installed at the bottom of the adsorption net (101). There are gaps at the top and bottom of the adsorption net (101). The top of the outer wall of the connecting ring (2) is equipped with multiple locking blocks (201), and the bottom of the fixing ring (3) is provided with a locking groove (301) corresponding to the locking blocks (201); The outer wall of the fixed ring (3) is fixedly installed with multiple slide rails (302). The fixed ring (3) is slidably connected to the moving ring (4) through the slide rails (302). The inner wall of the moving ring (4) is equipped with a helical tooth plate (401) at the corresponding position of the slot (301).

2. The smoke hood with oil fume purification function according to claim 1, characterized in that: The collection ring (5) has a groove at its center. A filter ring (501) is fixedly connected inside the groove of the collection ring (5). The side wall of the filter ring (501) is attached and fixed to the edge of the outer wall of the adsorption net (101) and the collection cover (102). The bottom of the outer wall of the collection cover (102) is fixedly connected to the inside of the groove of the collection ring (5).

3. The smoke hood with oil fume purification function according to claim 1, characterized in that: The center of the collection hood (102) is inclined to the top, and a through hole is provided at the center of the collection hood (102). The center of the adsorption net (101) is inclined to the top, and the top center of the adsorption net (101) is closed.

4. The smoke hood with oil fume purification function according to claim 1, characterized in that: The teeth of the locking block (201) on the outer wall of the connecting ring (2) are tilted to one side, and the teeth of the inclined tooth plate (401) are engaged with the teeth of the locking block (201).

5. The smoke hood with oil fume purification function according to claim 1, characterized in that: The top of the card slot (301) is bent to one side, and the width of the card slot (301) corresponds to the outer wall dimension of the card block (201).

6. The smoke hood with oil fume purification function according to claim 1, characterized in that: A compression spring (402) is installed on the top of the moving ring (4). The top of the compression spring (402) is fixedly connected to the top of the outer wall of the fixed ring (3). A groove corresponding to the slide rail (302) is opened on the inner wall of the moving ring (4).

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