Drainage structure of range hood

Abstract

The utility model relates to the technical field of range hoods, in particular to a range hood drainage structure which comprises a drainage groove, the drainage groove is formed in the bottom of a range hood and is of a hollow structure, a drainage pipe is vertically arranged at the bottom of the drainage groove, and the drainage pipe is communicated to an inner cavity of the drainage groove. A dirt collecting hopper is slidably arranged on the inner side wall of the drainage pipe in the height direction of the drainage pipe and is of a tubular structure with the top end and the bottom end closed, a flange is fixedly arranged on the side wall of the top end of the dirt collecting hopper, and the bottom of the flange is attached to the inner bottom wall of the drainage groove in a sealed mode. The dirt collecting hopper extending into the drainage pipe is arranged at the drainage port, oil dirt impurities in the drainage groove can only enter the dirt collecting hopper to be collected through the dirt collecting hopper with the flange, when drainage is needed, the dirt collecting hopper is controlled to move upwards to the outer side of the drainage pipe, and the drainage port and the drainage pipe are prevented from being blocked by oil dirt. The drainage efficiency is influenced.

Description

Technical Field

[0001] This utility model relates to the field of range hood technology, specifically to a range hood drainage structure. Background Technology

[0002] With a significant increase in environmental awareness, the government has imposed stringent requirements on air quality standards. This has spurred the development of the range hood industry and provided a safeguard for people's healthy lives.

[0003] As an important appliance in the kitchen, the main function of a range hood is to remove the fumes and steam generated during cooking. It draws in the fumes and steam, purifies them, and finally discharges the gas outdoors, thus protecting the health of users and being more environmentally friendly.

[0004] As range hoods are used over time, oil droplets and moisture gradually accumulate in the grease trap, forming wastewater. When this wastewater reaches a certain level, it needs to be drained through the drain outlet. However, existing drain outlets are typically located at the bottom of the grease trap, connected to a drain pipe to discharge the wastewater. But grease buildup in the grease trap over time can eventually clog the drain outlet or cause excessive grease buildup in the drain pipe, hindering wastewater discharge and affecting efficiency. Therefore, we propose a new range hood drainage structure to effectively address these shortcomings. Utility Model Content

[0005] The purpose of this utility model is to provide a drainage structure for a range hood to solve the problems mentioned in the background art.

[0006] This utility model is achieved through the following technical solution: a range hood drainage structure, including a drainage trough, the drainage trough being disposed at the bottom of the range hood, the drainage trough having an internal hollow structure, a drainage pipe being provided vertically at the bottom of the drainage trough, the drainage pipe being connected to the inner cavity of the drainage trough, a sludge collection hopper being slidably provided on the inner side wall of the drainage pipe along the height direction of the drainage pipe, the sludge collection hopper having a tubular structure with a closed top and bottom, a flange being fixedly provided on the top side wall of the sludge collection hopper, the bottom of the flange being sealed and fitted to the inner bottom wall of the drainage trough.

[0007] Optionally, a drive assembly is provided in the inner cavity of the drainage trough; the drive assembly is used to drive the sludge collection hopper to move.

[0008] Optionally, the drive assembly includes a lifting rod, which is vertically disposed within the drainage trough. The bottom end of the lifting rod is detachably connected to the inner bottom wall of the sludge collection hopper, and the top end of the lifting rod is fixedly provided with a drive plate along the length of the drainage trough. One end of the drive plate extends to the outside of the drainage trough.

[0009] Optionally, the side wall of the drainage trough is provided with a sliding groove for the drive plate to slide and connect, and the height of the sliding groove is greater than the height of the sludge collection hopper.

[0010] Optionally, the drive assembly further includes a fixing plate, which is fixedly connected to the inner wall of the drainage channel along the length of the drainage channel. The fixing plate has a through groove, and a slider is slidably disposed in the through groove along the length of the drainage channel. The lifting rod slides vertically through the slider.

[0011] Optionally, a limiting ring is fixedly sleeved on the outer side of the lifting rod, the limiting ring is located below the slider, and a limiting groove is opened at the bottom of the slider for the limiting ring to be inserted.

[0012] Optionally, the bottom wall of the drainage channel is provided with a circular hole, the diameter of which is not less than the diameter of the flange, and a sealing cap is sealed inside the circular hole.

[0013] Compared with the prior art, this utility model provides a range hood drainage structure, which has the following beneficial effects:

[0014] This invention features a sludge collection hopper extending into the drain pipe at the drain outlet. The flanged hopper ensures that oil and impurities in the drain trough can only enter and be collected within it. When drainage is needed, the sludge collection hopper can be moved upwards to the outside of the drain pipe, preventing the drain outlet and drain pipe from being blocked by oil and affecting drainage efficiency. Furthermore, the sludge collection hopper carries away the oil clogging the drain pipe, preventing the oil from being flushed back into the drain pipe during drainage, thus further improving the anti-clogging capability of the drain pipe. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a side sectional view of the range hood of this utility model;

[0017] Figure 3 This is a front sectional view of the drainage channel of this utility model;

[0018] Figure 4 for Figure 2 Enlarged structural diagram at point A in the middle;

[0019] Figure 5 for Figure 3 Enlarged structural diagram at point B;

[0020] Figure 6 for Figure 3 Enlarged structural diagram at point C.

[0021] In the diagram: 1. Drainage trough; 101. Drainage pipe; 102. Slide groove; 103. Circular hole; 2. Sludge collection hopper; 201. Flange; 3. Drive assembly; 301. Lifting rod; 302. Drive plate; 303. Fixing plate; 304. Through groove; 305. Slider; 306. Limiting ring; 307. Limiting groove; 4. Sealing cover. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1 - Figure 6 A range hood drainage structure includes a drainage trough 1, which is located at the bottom of the range hood and has an internal hollow structure. A drain pipe 101 is vertically arranged at the bottom of the drainage trough 1, which connects to the inner cavity of the drainage trough 1. A valve is installed inside the drain pipe 101. When drainage is not needed, the valve is closed so that the drainage trough 1 can store sewage. When the sewage reaches a certain amount, the valve can be opened to allow the sewage to be discharged through the drain pipe 101.

[0024] A sludge collection hopper 2 is slidably provided on the inner side wall of the drain pipe 101 along the height direction of the drain pipe 101. The sludge collection hopper 2 is a tubular structure with a closed top and bottom. A flange 201 is fixedly provided on the top side wall of the sludge collection hopper 2. The bottom of the flange 201 is sealed and fitted to the inner bottom wall of the drain trough 1, so that sewage and oil stains and other impurities in the drain trough 1 can only enter the sludge collection hopper 2 and not enter the drain pipe 101. When drainage is required, the sludge collection hopper 2 is controlled to slide upward and move out to the outside of the drain pipe 101, so that oil stains and other impurities can be carried out. This can not only prevent oil stains from clogging the drain outlet and the drain pipe 101, but also prevent the cleaned oil stains from being carried back into the drain pipe 101 by sewage, thereby further improving the anti-clogging ability of the drain pipe 101.

[0025] Furthermore, a drive assembly 3 is provided in the inner cavity of the drainage trough 1; the drive assembly 3 is used to drive the sludge collection hopper 2 to move, so that the user can more conveniently control the movement of the sludge collection hopper 2.

[0026] The following is a detailed description of driver component 3:

[0027] The drive assembly 3 includes a lifting rod 301, which is vertically positioned within the drain trough 1. The bottom end of the lifting rod 301 is detachably connected to the inner bottom wall of the sludge collection hopper 2, allowing the sludge collection hopper 2 to be removed from the bottom of the lifting rod 301 for easy cleaning of the collected grease. A drive plate 302 is fixedly mounted on the top end of the lifting rod 301 along the length of the drain trough 1, with one end of the drive plate 302 extending to the outside of the drain trough 1, allowing the user to control the movement of the sludge collection hopper 2 from outside the range hood.

[0028] Furthermore, the side wall of the drainage trough 1 is provided with a slid groove 102 for the drive plate 302 to slide. The height of the slid groove 102 is greater than the height of the sludge collection hopper 2, so that when the drive plate 302 moves from the bottom end of the slid groove 102 to the top end of the slid groove 102, the sludge collection hopper 2 can be completely disengaged from the drainage pipe 101, so that the sewage can smoothly enter the drainage pipe 101 and be discharged.

[0029] In this embodiment, the drive assembly 3 also includes a fixing plate 303, which is fixedly connected to the inner wall of the drainage trough 1 along the length of the drainage trough 1. A through groove 304 is provided on the fixing plate 303, and a slider 305 is slidably provided in the through groove 304 along the length of the drainage trough 1. The lifting rod 301 slides vertically through the slider 305 so that the lifting rod 301 can move up and down vertically and can also move left and right along the length of the drainage trough 1. This makes the movement of the lifting rod 301 more stable and prevents the sludge collection hopper 2 from not accurately entering the drain pipe 101 due to the shaking of the lifting rod 301.

[0030] To ensure that the sludge collection hopper 2 can be fixed after it is moved outside the drain pipe 101, in this application, a limiting ring 306 is fixedly sleeved on the outside of the lifting rod 301. The limiting ring 306 is located below the slider 305. The bottom of the slider 305 has a limiting groove 307 for the limiting ring 306 to be inserted into. When the drive plate 302 controls the lifting rod 301 to move the sludge collection hopper 2 upward, the limiting ring 306 will move toward the limiting groove 307 and eventually enter the limiting groove 307. In this embodiment, the side of the limiting ring 306 has a spring ball, and the limiting groove 307 has a groove for the spring ball to be inserted into, so that the limiting ring 306 can be fixed after entering the limiting groove 307, preventing the sludge collection hopper 2 from falling and avoiding affecting the discharge of sewage.

[0031] In order to enable users to clean the oil and impurities collected in the sludge collection hopper 2, the bottom wall of the drainage trough 1 in this application is provided with a circular hole 103. The diameter of the circular hole 103 is not less than the diameter of the flange 201. A sealing cover 4 is sealed inside the circular hole 103 so that when the sludge collection hopper 2 moves above the circular hole 103, it can move downwards, so that the sludge collection hopper 2 can extend to the outside of the drainage trough 1. At this time, the sludge collection hopper 2 can be unscrewed from the bottom of the lifting rod 301 to clean the sludge collection hopper 2.

[0032] The working principle and usage process of this utility model are as follows: When the drain pipe 101 is closed, the sludge collection hopper 2 is located inside the drain pipe 101, and the bottom wall of the flange 201 and the inner bottom wall of the drain trough 1 are sealed together. At this time, oil and impurities can only enter the inside of the sludge collection hopper 2 and cannot enter the drain pipe 101, so the oil and impurities will not block the drain outlet and the drain pipe 101. When drainage is required, the drive plate 302 is moved from the bottom end of the slide trough 102 to the top end of the slide trough 102. At this time, the lifting rod 301 will drive the sludge collection hopper 2 to move out to the outside of the drain pipe 101. The sludge collection hopper 2 will carry out the oil and impurities, so that the sewage can be discharged smoothly through the drain pipe 101. The oil and impurities are stored in the sludge collection hopper 2, so that the sewage cannot carry the oil and impurities into the drain pipe 101.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0034] 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 drainage structure of a range hood, comprising a drainage groove (1) arranged at the bottom of the range hood, characterized in that: The drain tank (1) is internally hollow, the bottom of the drain tank (1) is vertically provided with a drain pipe (101) which is communicated to the inner cavity of the drain tank (1), a sewage collecting bucket (2) is slidably arranged on the inner side wall of the drain pipe (101) along the height direction of the drain pipe (101), the sewage collecting bucket (2) is a tubular structure with closed top and bottom, a flange (201) is fixedly arranged on the top side wall of the sewage collecting bucket (2), and the bottom of the flange (201) is sealingly attached to the inner bottom wall of the drain tank (1).

2. The oil fume extractor drainage structure according to claim 1, characterized in that: The inner cavity of the drain tank (1) is provided with a driving assembly (3), and the driving assembly (3) is used to drive the sewage collecting bucket (2) to move.

3. The oil fume extractor drainage structure according to claim 2, characterized in that: The driving assembly (3) comprises a lifting rod (301) which is vertically arranged in the drain tank (1), the bottom end of the lifting rod (301) is detachably connected to the inner bottom wall of the sewage collecting bucket (2), and the top end of the lifting rod (301) is fixedly provided with a driving plate (302) along the length direction of the drain tank (1), one end of the driving plate (302) extends to the outside of the drain tank (1).

4. The oil fume extractor drainage structure according to claim 3, characterized in that: The side wall of the drain tank (1) is provided with a sliding groove (102) for sliding connection of the driving plate (302), and the height of the sliding groove (102) is greater than the height of the sewage collecting bucket (2).

5. The oil fume extractor drainage structure according to claim 3, characterized in that: The driving assembly (3) further comprises a fixed plate (303) which is fixedly connected to the inner side wall of the drain tank (1) along the length direction of the drain tank (1), a through groove (304) is formed in the fixed plate (303), a sliding block (305) is slidably arranged in the through groove (304) along the length direction of the drain tank (1), and the lifting rod (301) vertically slides through the sliding block (305).

6. The oil fume extractor drainage structure according to claim 5, characterized in that: A limiting ring (306) is fixedly arranged on the outside of the lifting rod (301), the limiting ring (306) is located below the sliding block (305), and a limiting groove (307) is formed in the bottom of the sliding block (305) for embedding the limiting ring (306).

7. The oil fume extractor drainage structure according to claim 5, characterized in that: A circular hole (103) is formed in the bottom wall of the drain tank (1), the diameter of the circular hole (103) is not less than the diameter of the flange (201), and a sealing cover (4) is sealingly connected in the circular hole (103).

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