Residual water circulating device and cooking equipment

Abstract

The utility model relates to a residual water circulation device and cooking equipment, the cooking equipment comprises a heating disc, the bottom of the heating disc is provided with a water outlet, the residual water circulation device comprises a water storage tank; two ends of the drainage pipe are respectively communicated with the drainage port and the water storage tank; the drainage assembly is arranged at the end, communicated with the drainage opening, of the drainage pipe and can open or block the drainage opening; the filtering assembly is arranged in the drainage pipe, and the outer peripheral wall of the filtering assembly is attached to the inner peripheral wall of the drainage pipe. The drainage assembly opens the drainage opening, residual water on the heating disc can enter the drainage pipe through the drainage opening, the water in the drainage pipe is filtered by the filtering assembly and then flows into the water storage tank to be collected, and therefore the residual water on the heating disc can be conveniently removed, manual wiping by a user is not needed, and the residual water is prevented from generating scale on the heating disc; and the filtering assembly can remove impurities, part of harmful substances and the like in the residual water, so that recycling of the residual water is realized, and waste of water resources is reduced.

Description

Technical Field

[0001] This utility model relates to the field of cooking utensil technology, and in particular to a waste water circulation device and cooking equipment. Background Technology

[0002] Steam ovens and other cooking appliances with steaming functions usually have a heating plate at the bottom of the inner cavity for heating water to generate steam.

[0003] However, after using the steam function, there is usually residual water on the heating plate, which requires manual wiping. This operation is quite cumbersome, and when there is a lot of residual water, it is not only easy to produce limescale, but also waste water resources. Utility Model Content

[0004] Therefore, it is necessary to provide a waste water recycling device and cooking equipment to address the above problems, so as to remove the waste water on the heating plate and reduce water waste.

[0005] This utility model provides a residual water circulation device for cooking equipment. The cooking equipment includes a heating plate with a drain outlet at the bottom. The device includes: a water storage tank; a drain pipe with both ends connected to the drain outlet and the water storage tank respectively; a drain assembly disposed at the end of the drain pipe connected to the drain outlet and capable of opening / closing the drain outlet; and a filter assembly disposed inside the drain pipe, with the outer peripheral wall of the filter assembly fitting against the inner peripheral wall of the drain pipe.

[0006] In the aforementioned residual water circulation device, after the heating plate is used, the control drainage component opens the drain outlet, allowing the residual water on the heating plate to enter the drain pipe through the drain outlet. The water in the drain pipe is filtered by the filter component and then flows into the water storage tank for collection. This conveniently removes the residual water from the heating plate without requiring manual wiping by the user, preventing scale buildup on the heating plate. Furthermore, the filter component removes impurities and some harmful substances from the residual water, enabling the recycling and reuse of the residual water, reducing water waste, and lowering operating costs.

[0007] In one embodiment, the filtration assembly includes a first filter element, which has a cavity and an inlet and an outlet communicating with the cavity. The cavity is filled with a filter cartridge, the inlet faces the drainage assembly, and the outlet faces the water storage tank.

[0008] With this setup, the filter assembly has a simple structure and can ensure that all residual water entering the drain pipe can be filtered through the filter element.

[0009] In one embodiment, the filter assembly further includes a first pipe disposed in the cavity and extending axially along the first filter element, one end of the first pipe being connected to the water inlet, and the outer peripheral wall of the first pipe being provided with a plurality of first communication ports communicating with the cavity.

[0010] This design improves the efficiency of residual water entering the cavity of the first filter element and allows the residual water to fully contact the filter element, thereby improving filtration efficiency and effect.

[0011] In one embodiment, the outer peripheral wall of the first pipeline is provided with multiple sets of first communication ports, and the multiple sets of first communication ports are arranged at intervals along the axial direction of the first pipeline; each set of first communication ports includes multiple first communication ports, and the multiple first communication ports in the same set are arranged at intervals along the circumferential direction of the first pipeline.

[0012] With this configuration, the first connecting ports on the first pipeline are arranged neatly to facilitate the processing of the filter components; the residual water in the first pipeline can enter each area of ​​the cavity of the first filter element evenly through each first connecting port to make full use of the filter element and further improve the filtration efficiency and filtration effect.

[0013] In one embodiment, the filter assembly further includes a second pipe disposed in the cavity and extending along the axial direction of the first filter element. One end of the second pipe is connected to the water outlet. The outer peripheral wall of the second pipe is provided with a plurality of second communication ports communicating with the cavity. The plurality of second communication ports are arranged at circumferential intervals along the second pipe.

[0014] This design improves the efficiency of draining residual water from the first filter element, thereby increasing the filtration efficiency. It also ensures that residual water in each area of ​​the first filter element's cavity can be drained through each of the second connecting ports, preventing residual water from remaining in the first filter element's cavity.

[0015] In one embodiment, the filter element is configured as polypropylene and / or activated carbon.

[0016] This setup allows for the effective removal of organic matter and some harmful substances from the waste water, resulting in excellent filtration.

[0017] In one embodiment, the drainage assembly includes a drainage component, a baffle, and a movable component. The drainage component has a drainage channel with both ends communicating with the drain outlet and the drain pipe, respectively. The baffle is disposed on the inner wall of the drainage channel and has a drainage hole. The movable component is disposed in the drainage channel and can move relative to the baffle to open / block the drainage hole.

[0018] This design results in a simple structure for the drainage components, lower costs, and ease of operation for users.

[0019] In one embodiment, the residual water circulation device further includes a second filter element, which is detachably disposed in the drainage channel and located above the baffle, and the second filter element is provided with filter holes.

[0020] With this setup, residual water on the heating plate can pass through the filter holes on the second filter element. Food residue is filtered by the filter holes and remains above the second filter element, thus providing a primary filtration effect for the residual water and preventing large food particles from clogging the drain hole, drain pipe, or filter assembly. After drainage is complete, the user can remove the second filter element and empty the food residue on it for easy cleaning.

[0021] In one embodiment, the second filter element includes a bottom wall, and the residual water circulation device further includes a third filter element stacked on the upper surface of the bottom wall, the third filter element being configured to filter an oil film.

[0022] With this setup, when the residual water comes into contact with the third filter element, the third filter element can adsorb the grease in the residual water, thus also filtering the residual water and preventing the grease from entering the water storage tank with the residual water and affecting the water quality.

[0023] This utility model also provides a cooking device, including a heating plate and a residual water circulation device as described above, wherein the bottom of the heating plate is provided with a drain outlet. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a three-dimensional structural diagram of a waste water circulation device according to one embodiment of the present invention.

[0026] Figure 2 Provided by this utility model Figure 1 A schematic diagram of the cross-sectional structure;

[0027] Figure 3 Provided by this utility model Figure 2 Enlarged structural diagram at point A;

[0028] Figure 4 Provided by this utility model Figure 2 A schematic diagram of the internal structure of the filter component;

[0029] Figure 5 for Figure 1 A cross-sectional view of the drainage component, showing the drainage hole in the open position;

[0030] Figure 6 for Figure 5 A partial three-dimensional cross-sectional structural diagram of the drainage component;

[0031] Figure 7 for Figure 1 A cross-sectional view of the drainage component, showing the drainage holes in a blocked state;

[0032] Figure 8 This is a partial three-dimensional structural diagram of a cooking device according to one embodiment of the present invention.

[0033] Reference numerals: 1. Water storage tank; 2. Drainage pipe; 3. Drainage assembly; 31. Drainage component; 311. Drainage channel; 312. Groove; 313. Support; 32. Stop; 321. Drainage hole; 33. Movable part; 331. Sealing part; 332. Connecting part; 34. Fixing part; 35. Slide groove; 351. First limiting section; 352. Sliding section; 3521. First section; 3522. Second section; 353. Second limiting section; 36. Sliding block; 37. Elastic element; 4. Filter assembly Components; 41. First filter element; 411. Filter element; 412. Inlet; 413. Outlet; 42. First pipeline; 421. First connecting port; 43. Second pipeline; 431. Second connecting port; 5. Second filter element; 51. Filter hole; 511. First filter hole; 512. Second filter hole; 52. Body; 521. Bottom wall; 522. Side wall; 53. Fitting part; 54. Handle; 55. Overlapping part; 6. Third filter element; 7. Heating plate; 71. Drain outlet; 8. Inner tank. Detailed Implementation

[0034] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0035] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application's specification are for illustrative purposes only and do not represent the only possible implementation.

[0036] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0037] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0038] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used in this application includes any and all combinations of one or more of the associated listed items.

[0039] Steam ovens and other cooking appliances with steaming functions typically have a heating plate at the bottom of the inner cavity for heating water to generate steam. However, after steaming, water usually remains on the heating plate, requiring manual wiping, which is tedious. Furthermore, excessive water not only easily leads to limescale buildup but also wastes water.

[0040] To solve the above problems, such as Figures 1 to 8 As shown, this utility model provides a residual water circulation device to remove residual water from the heating plate and reduce water waste.

[0041] like Figure 1 , Figure 2 and Figure 8 As shown, specifically, the waste water circulation device is used in cooking equipment, which includes a heating plate 7. The bottom of the heating plate 7 is provided with a drain outlet 71. The waste water circulation device includes a water storage tank 1, a drain pipe 2, a drain assembly 3, and a filter assembly 4. The two ends of the drain pipe 2 are respectively connected to the drain outlet 71 and the water storage tank 1. The drain assembly 3 is located at the end of the drain pipe 2 that is connected to the drain outlet 71 and can open or block the drain outlet 71. The filter assembly 4 is located inside the drain pipe 2, and the outer peripheral wall of the filter assembly 4 is attached to the inner peripheral wall of the drain pipe 2.

[0042] In the residual water circulation device provided in this embodiment of the utility model, after the heating plate 7 is used, the control drainage component 3 opens the drain outlet 71, so that the residual water on the heating plate 7 can enter the drain pipe 2 through the drain outlet 71. The water in the drain pipe 2 flows into the water storage tank 1 for collection after being filtered by the filter component 4. This can conveniently remove the residual water on the heating plate 7 without the need for manual wiping by the user, thus avoiding the formation of scale on the heating plate 7. In addition, the filter component 4 can remove impurities and some harmful substances in the residual water, so as to realize the recycling and reuse of residual water, reduce the waste of water resources, and reduce the cost of use.

[0043] like Figures 3 to 4 As shown, the filter assembly 4 includes a first filter element 41. The first filter element 41 has a cavity and an inlet 412 and an outlet 413 communicating with the cavity. The cavity is filled with a filter cartridge 411. The inlet 412 faces the drain assembly 3, and the outlet 413 faces the water storage tank 1. After the residual water enters the drain pipe 2 from the drain outlet 71, it enters the cavity of the first filter element 41 through the inlet 412. The filter cartridge 411 in the cavity can filter the residual water to remove impurities and some harmful substances. The filtered residual water flows into the water storage tank 1 through the outlet 413 for collection. In this way, the filter assembly 4 has a simple structure and can ensure that all residual water entering the drain pipe 2 can be filtered by the filter cartridge 411.

[0044] The filter element 411 is made of polypropylene and activated carbon. This effectively removes organic matter and some harmful substances from the residual water, resulting in good filtration. Of course, the filter element 411 can also be made of polypropylene, activated carbon, or other materials alone, as long as it effectively filters the residual water and allows for its reuse. This embodiment of the invention does not impose specific limitations on these materials.

[0045] like Figures 3 to 4As shown, the filter assembly 4 also includes a first pipe 42 disposed within the cavity and extending axially along the first filter element 41. One end of the first pipe 42 is connected to the inlet 412, and the outer peripheral wall of the first pipe 42 is provided with multiple first connecting ports 421 communicating with the cavity. After the residual water enters the drain pipe 2 from the drain outlet 71, it enters the first pipe 42 through the inlet 412, and then enters the cavity of the first filter element 41 through each of the first connecting ports 421. This improves the efficiency of residual water entering the cavity of the first filter element 41 and allows the residual water to fully contact the filter element 411, thereby improving the filtration efficiency and filtration effect.

[0046] In the illustrated embodiment, the outer peripheral wall of the first pipe 42 is provided with multiple sets of first connecting ports 421, which are arranged at intervals along the axial direction of the first pipe 42. Each set of first connecting ports 421 includes multiple first connecting ports 421, which are arranged at intervals along the circumference of the first pipe 42. The first connecting ports 421 on the first pipe 42 are arranged neatly to facilitate the processing of the filter assembly 4. Furthermore, residual water in the first pipe 42 can enter each area of ​​the cavity of the first filter element 41 evenly through each first connecting port 421 to fully utilize the filter element 411 and further improve the filtration efficiency and filtration effect. Of course, in other embodiments, the multiple first connecting ports 421 can also be arbitrarily arranged on the outer peripheral wall of the first pipe 42, as long as it is ensured that all residual water in the first pipe 42 can enter the cavity of the first filter element 41 through the first connecting ports 421. This embodiment of the present invention does not impose specific limitations here.

[0047] like Figures 3 to 4 As shown, the filter assembly 4 also includes a second pipe 43 disposed within the cavity and extending axially along the first filter element 41. One end of the second pipe 43 is connected to the outlet 413. The outer peripheral wall of the second pipe 43 is provided with a plurality of second connecting ports 431 communicating with the cavity. The plurality of second connecting ports 431 are arranged at intervals along the circumference of the second pipe 43. The residual water in the cavity of the first filter element 41, after being filtered by the filter element 411, enters the second pipe 43 through each of the second connecting ports 431 and flows into the water storage tank 1 through the outlet 413. The plurality of second connecting ports 431 can improve the efficiency of residual water discharge from the first filter element 41, thereby improving the filtration efficiency. It also allows residual water in each area of ​​the cavity of the first filter element 41 to be discharged through each of the second connecting ports 431, avoiding residual water residue in the cavity of the first filter element 41.

[0048] Preferably, the length of the first pipe 42 is greater than the length of the second pipe 43. The first pipe 42 and the second pipe 43 can be separate structures, meaning that the opposite ends of both pipes are sealed to prevent residual water in the first pipe 42 from flowing directly to the second pipe 43 without being filtered by the filter element 411. Alternatively, the first pipe 42 and the second pipe 43 can be an integrated structure, separated by a partition.

[0049] like Figure 2 and Figure 5 As shown, the drainage assembly 3 includes a drainage component 31, a baffle 32, and a movable component 33. The drainage component 31 has a drainage channel 311 with both ends connected to the drain outlet 71 and the drain pipe 2, respectively. The baffle 32 is disposed on the inner wall of the drainage channel 311 and has a drain hole 321. The movable component 33 is disposed within the drainage channel 311 and can move relative to the baffle 32 to open or block the drain hole 321. During operation, the movable component 33 is controlled to move relative to the baffle 32 to the blocking state, so that the movable component 33 blocks the drain hole 321, preventing water on the heating plate 7 from flowing out through the drain hole 321. After operation, the movable component 33 is controlled to move relative to the baffle 32 to the open state, so that the movable component 33 opens the drain hole 321, and the remaining water on the heating plate 7 enters the drain pipe 2 through the drain outlet 71 and the drain hole 321. The drainage assembly 3 has a simple structure, low cost, and is easy for users to operate.

[0050] like Figure 5 As shown, the residual water circulation device also includes a second filter element 5, which is detachably installed in the drain channel 311 and located above the baffle 32. The second filter element 5 has filter holes 51. When the movable part 33 opens the drain hole 321, the residual water on the heating plate 7 can sequentially enter the drain pipe 2 through the drain outlet 71, the filter holes 51 on the second filter element 5, and the drain hole 321. Food residue remains above the second filter element 5 under the filtering effect of the filter holes 51, thus providing a primary filtration effect for the residual water and preventing large food residue from clogging the drain hole 321, the drain pipe 2, or the filter assembly 4. After drainage, the user can remove the second filter element 5 and pour out the food residue on the second filter element 5 for easy cleaning.

[0051] like Figure 5As shown, the second filter element 5 includes a body portion 52 and a handle 54 disposed on the body portion 52. The bottom of the handle 54 is provided with a mating portion 53 that can engage with the movable member 33. The handle 54 facilitates the user's removal or placement of the second filter element 5. When the second filter element 5 is placed on the stop member 32, the mating portion 53 engages with the movable member 33, thereby allowing the user to control the movement of the second filter element 5 through the handle 54. The engagement of the mating portion 53 with the movable member 33 drives the movable member 33 to move relative to the stop member 32. The second filter element 5 does not need to be removed when controlling the movable member 33, making it convenient for the user to operate.

[0052] like Figure 5 As shown, in one embodiment, the body portion 52 includes a bottom wall 521 and a side wall 522. The filter hole 51 includes a plurality of first filter holes 511 disposed on the bottom wall 521, which are spaced apart. The filter hole 51 also includes a plurality of second filter holes 512 disposed on the side wall 522, which are spaced apart circumferentially along the side wall 522. The simultaneous provision of first filter holes 511 and second filter holes 512 can improve drainage efficiency and shorten drainage time. The first filter holes 511 can be configured as small circular through holes to prevent food residue above the bottom wall 521 from falling onto the baffle 32 through the first filter holes 511. Each second filter hole 512 can be a strip-shaped hole extending along the height direction of the side wall 522 to further improve drainage efficiency.

[0053] Of course, it is also possible to have only the first filter hole 511 on the bottom wall 521, or only the second filter hole 512 on the side wall 522, as long as it is ensured that when the second filter element 5 is open, the residual water above the second filter element 5 can flow through the filter hole 51 to the drain hole 321, and the food residue always remains above the second filter element 5.

[0054] like Figure 5 As shown, the waste water circulation device also includes a third filter element 6 stacked on the upper surface of the bottom wall 521. The third filter element 6 is configured to filter oil film. When the waste water comes into contact with the third filter element 6, the third filter element 6 can adsorb the oil in the waste water, thus also performing a primary filtration effect on the waste water, preventing oil from entering the water storage tank 1 with the waste water and affecting the water quality. In this way, the waste water can be filtered three times, further improving the filtration effect. Since the second filter element 5 is detachable, placing the third filter element 6 on the upper surface of the bottom wall 521 also makes it convenient for the user to replace the third filter element 6.

[0055] In the illustrated implementation, such as Figure 5 and Figure 7As shown, the drainage assembly 3 also includes a fixing member 34 disposed on the inner wall of the drainage member 31 and located below the baffle member 32. A movable member 33 is disposed on the fixing member 34 and can move up and down relative to the fixing member 34. The movable member 33 includes a blocking portion 331 that can pass through the drainage hole 321. In the blocked state, the outer peripheral wall of the blocking portion 331 is in contact with the inner peripheral wall of the drainage hole 321. The fixing member 34 being located below the baffle member 32 avoids increasing the width of the drainage device and does not affect the normal drainage of the drainage device. The blocking portion 331 can descend to the blocked state relative to the baffle member 32 and can rise to the open state relative to the baffle member 32. In the open state, the blocking portion 331 separates from the baffle member 32. The movement of the movable member 33 and the second filter member 5 is simple and easy to control. The movable part 33 also includes a connecting part 332 connected to the sealing part 331. The cross-sectional dimension of the connecting part 332 is smaller than that of the drain hole 321, so that in the open state, the connecting part 332 will not affect the flow of water through the drain hole 321. Furthermore, the baffle 32 can be configured as a waterproof gasket. In the sealed state, the bottom wall 521 of the second filter element 5 is attached to the upper surface of the baffle 32 to seal the first filter hole 511, thereby preventing water leakage at the first filter hole 511 and the drain hole 321.

[0056] Furthermore, a waterproof layer is provided on the outer peripheral wall of the sealing part 331 and the inner peripheral wall of the drainage hole 321. This waterproof layer can be a waterproof coating, a waterproof gasket, or the like. In the sealed state, the waterproof layer further improves the sealing performance between the outer peripheral wall of the sealing part 331 and the inner peripheral wall of the drainage hole 321, preventing water leakage at the drainage hole 321, and also providing odor prevention.

[0057] like Figure 5 and Figure 7 As shown, the second filter element 5 also includes an overlapping portion 55 disposed at the end of the side wall 522 away from the bottom wall 521, and the drain element 31 is provided with a groove 312. When the blocking portion 331 descends to the blocking state relative to the stop member 32 and rises to the open state relative to the stop member 32, in the blocking state, the overlapping portion 55 overlaps in the groove 312 to support the second filter element 5 and restrict the position of the second filter element 5.

[0058] like Figure 5 and Figure 7 As shown, the drainage component 31 also includes a support portion 313 disposed on the inner wall of the drainage channel 311. The support portion 313 is located below the stop member 32. The fixing member 34 can be detachably connected to the support portion 313 by means of threads, plugs, snaps, etc., so as to facilitate the user to disassemble or replace the drainage component 3. The support portion 313 can be configured as a support rod or other structure to ensure that water in the drainage channel 311 can be quickly discharged through the gap between the support portion 313 and the inner wall of the drainage channel 311.

[0059] like Figures 5 to 7 As shown, one of the fixing member 34 and the connecting part 332 is provided with a groove 35, and the other is provided with a slider 36 that can slide within the groove 35. The groove 35 includes a first limiting section 351, a sliding section 352, and a second limiting section 353 connected in sequence. In the blocked state, the slider 36 engages with the first limiting section 351, and in the open state, the slider 36 engages with the second limiting section 353. When it is necessary to control the movable member 33 to move from the blocked state to the open state, first control the slider 36 to disengage from the first limiting section 351, then control the movable member 33 to rise relative to the fixing member 34. The slider 36 slides along the sliding section 352 toward the second limiting section 353. After the movable member 33 moves to the open state, control the slider 36 to engage with the second limiting section 353 to stabilize the movable member 33 in the open state and prevent the movable member 33 from accidentally falling relative to the fixing member 34. When it is necessary to control the movable member 33 to move from the open state to the blocked state... In the blocked state, first, control the slider 36 to disengage from the second limiting section 353, then control the movable part 33 to descend relative to the fixed part 34. The slider 36 slides along the sliding section 352 toward the first limiting section 351. After the movable part 33 moves to the blocked state, control the slider 36 to cooperate with the first limiting section 351 to stabilize the movable part 33 in the blocked state, preventing the movable part 33 from accidentally rising relative to the fixed part 34. This improves the stability and reliability of the movable part 33 and the second filter 5 in the blocked and open states. Specifically, along the lifting direction of the movable part 33, the distance between the position of the movable part 33 in the open state and the position of the movable part 33 in the blocked state is equal to the distance between the first limiting section 351 and the second limiting section 353.

[0060] Specifically, the sliding section 352 includes a first section 3521 connected to the first limiting section 351 and a second section 3522 connected to the second limiting section 353. When the slider 36 slides from the first section 3521 to the second section 3522, the movable member 33 descends and then rises relative to the fixed member 34. When the movable member 33 moves from the blocked state to the open state, the slider 36 slides from the first limiting section 351 through the first section 3521 and the second section 3522 to the second limiting section 353. When the slider 36 slides within the first section 3521, the movable member 33 descends relative to the fixed member 34. When the slider 36 slides within the second section 3522, the movable member 33 rises relative to the fixed member 34. Thus, the first section 3521 can further prevent the movable member 33 from accidentally rising relative to the fixed member 34, improving the stability and reliability of the movable member 33 and the second filter 5 in the blocked state. Conversely, when the movable part 33 moves from the open state to the closed state, the slider 36 slides from the second limiting segment 353 through the second segment 3522 and the first segment 3521 to the first limiting segment 351. When the slider 36 slides within the second segment 3522, the movable part 33 rises relative to the fixed part 34; when the slider 36 slides within the first segment 3521, the movable part 33 descends relative to the fixed part 34. The length of the first segment 3521 is much shorter than the length of the second segment 3522.

[0061] The sliding segment 352 can be two, symmetrically arranged on both sides of the first limiting segment 351 and the second limiting segment 353. The movable member 33 can slide from the first limiting segment 351 along either sliding segment 352 to the second limiting segment 353, and similarly, the movable member 33 can also slide from the second limiting segment 353 along either sliding segment 352 to the first limiting segment 351. Of course, the sliding segment 352 can also be only one.

[0062] like Figures 5 to 7As shown, the drainage assembly 3 also includes an elastic member 37 disposed between the fixing member 34 and the connecting portion 332. When the movable member 33 descends, the elastic member 37 is compressed. When the elastic member 37 is compressed, it can apply a force toward the second filter member 5 to the movable member 33, so that the movable member 33 has an upward tendency. When it is necessary to control the movable member 33 to move from the blocked state to the open state, the second filter member 5 first applies a downward force to the movable member 33, causing the movable member 33 to descend a short distance. The slider 36 slides from the first limiting section 351 to the first section 3521, and the elastic member 37 is compressed. After the force applied to the second filter member 5 and the movable member 33 is removed, the movable member 33 can automatically rise to the open state under the action of the elastic force of the elastic member 37. The slider 36 slides from the first section 3521 through the second section 3522 to the second limiting section 353, and the elastic member 37 can also stabilize the movable member 33 in the open state. When it is necessary to control the movement of the movable part 33 from the open state to the blocked state, the second filter 5 applies a downward force to the movable part 33, causing the movable part 33 to descend. The slider 36 slides from the second limit section 353 to the second section 3522, and the elastic element 37 is compressed. After the force applied to the second filter 5 and the movable part 33 is removed, the movable part 33 can automatically rise a short distance to the blocked state under the elastic force of the elastic element 37. The slider 36 slides from the second section 3522 through the first section 3521 to the first limit section 351. Under the condition of no external force, the elastic element 37 can prevent the slider 36 from sliding from the first limit section 351 to the first section 3521, thereby preventing the movable part 33 from accidentally rising relative to the fixed part 34, and improving the stability and reliability of the movable part 33 and the second filter 5 in the blocked state.

[0063] like Figures 5 to 7 As shown, when it is necessary to control the movable part 33 to move from the blocked state to the open state, since it is necessary to first control the movable part 33 to descend a small distance, the mating part 53 is elastic when the bottom wall 521 of the second filter element 5 is in contact with the stop 32 in the blocked state. Therefore, when the handle 54 is pressed, the mating part 53 deforms and applies a downward force to the movable part 33, causing the movable part 33 to descend a small distance. After the force applied to the mating part 53 is removed, the mating part 53 can automatically return to its original position. In the illustrated embodiment, the mating part 53 is provided with a mating groove. When the second filter element 5 is placed on the stop 32, part of the blocked part 331 is located in the mating groove, which increases the deformability of the mating part 53. The second filter element 5 can be made of ABS plastic, which has the characteristics of being compression-resistant, easy to recover, and having good high-temperature resistance.

[0064] Of course, in other embodiments, the drainage component 3 can also be configured as a pull-up drain, a rotating pop-up drain, a flip-up drain, or other drainage structures, as long as it can block the drain outlet 71 when the heating plate 7 is working and open the drain outlet 71 after the heating plate 7 has finished working. This utility model embodiment does not impose specific limitations here.

[0065] like Figure 8 As shown, this embodiment of the present invention also provides a cooking device, including a heating plate 7 and the aforementioned residual water circulation device. The bottom of the heating plate 7 is provided with a drain outlet 71. Specifically, the cooking device also includes an inner liner 8, with the heating plate 7 disposed at the bottom of the inner liner 8. The heating plate 7 can heat the water inside the heating plate 7 and generate steam to realize the steaming function of the cooking device. It is understood that the height of the top surface of the drain component 31 needs to be equal to or lower than the height of the bottom surface of the heating plate 7 to ensure that the residual water in the heating plate 7 can flow normally into the drain channel 311. This cooking device can be a steam oven, steam oven, or other equipment with a steaming function; this embodiment of the present invention does not impose specific limitations here.

[0066] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0067] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the scope of protection of this application. Therefore, the patent protection scope of this application should be determined by the appended claims.

Claims

1. A residual water circulation device for use in cooking equipment, the cooking equipment including a heating plate (7), the bottom of the heating plate (7) being provided with a drain outlet (71), characterized in that, include: Water storage tank (1); The drain pipe (2) is connected at both ends to the drain outlet (71) and the water storage tank (1), respectively. A drainage assembly (3) is disposed at one end of the drain pipe (2) that communicates with the drain outlet (71), and is capable of opening / closing the drain outlet (71); and, A filter assembly (4) is disposed inside the drain pipe (2), and the outer peripheral wall of the filter assembly (4) is in contact with the inner peripheral wall of the drain pipe (2).

2. The waste water circulation device according to claim 1, characterized in that, The filter assembly (4) includes a first filter element (41), which has a cavity and an inlet (412) and an outlet (413) communicating with the cavity. The cavity is filled with a filter element (411), the inlet (412) faces the drain assembly (3), and the outlet (413) faces the water storage tank (1).

3. The waste water circulation device according to claim 2, characterized in that, The filter assembly (4) further includes a first pipe (42) disposed in the cavity and extending along the axial direction of the first filter element (41). One end of the first pipe (42) is connected to the water inlet (412), and the outer peripheral wall of the first pipe (42) is provided with a plurality of first communication ports (421) connected to the cavity.

4. The waste water circulation device according to claim 3, characterized in that, The outer peripheral wall of the first pipeline (42) is provided with multiple sets of first communication ports (421), and the multiple sets of first communication ports (421) are arranged at intervals along the axial direction of the first pipeline (42). Each group of first connection ports (421) includes multiple first connection ports (421), and the multiple first connection ports (421) in the same group are arranged at intervals along the circumference of the first pipeline (42).

5. The waste water circulation device according to claim 2, characterized in that, The filter assembly (4) further includes a second pipe (43) disposed in the cavity and extending along the axial direction of the first filter element (41). One end of the second pipe (43) is connected to the water outlet (413). The outer peripheral wall of the second pipe (43) is provided with a plurality of second communication ports (431) communicating with the cavity. The plurality of second communication ports (431) are arranged at intervals along the circumference of the second pipe (43).

6. The waste water circulation device according to claim 2, characterized in that, The filter element (411) is made of polypropylene and / or activated carbon.

7. The waste water circulation device according to claim 1, characterized in that, The drainage assembly (3) includes a drainage component (31), a baffle (32), and a movable component (33). The drainage component (31) has a drainage channel (311) with both ends connected to the drain outlet (71) and the drain pipe (2), respectively. The baffle (32) is disposed on the inner wall of the drainage channel (311) and has a drainage hole (321). The movable component (33) is disposed in the drainage channel (311) and can move relative to the baffle (32) to open / block the drainage hole (321).

8. The waste water circulation device according to claim 7, characterized in that, The residual water circulation device further includes a second filter element (5), which is detachably disposed in the drainage channel (311) and located above the baffle (32). The second filter element (5) is provided with filter holes (51).

9. The waste water circulation device according to claim 8, characterized in that, The second filter element (5) includes a bottom wall (521), and the residual water circulation device further includes a third filter element (6) stacked on the upper surface of the bottom wall (521), the third filter element (6) being configured to filter oil film.

10. A cooking device, characterized in that, It includes a heating plate (7) and a residual water circulation device as described in any one of claims 1-9, wherein the bottom of the heating plate (7) is provided with a drain outlet (71).

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