Drying and deodorizing device for pedestal pan

Abstract

The drying and deodorizing device comprises a shell, an air channel, a first air inlet, a second air inlet, a first air outlet and a second air outlet are formed in the shell, and the first air inlet, the second air inlet, the first air outlet and the second air outlet are communicated with the air channel. The air supply device is mounted in the air duct and is configured to be capable of supplying air in the forward direction and / or the reverse direction; the heating device is mounted in the air duct and located between the air supply device and the first air outlet; the deodorization device is mounted in the air duct and located between the air supply device and the second air outlet; the first cover plate, the second cover plate and the third cover plate cover the first air inlet, the second air inlet and the first air outlet respectively and are configured to open or close the first air inlet, the second air inlet or the first air outlet respectively according to the air supply direction of the air supply device; according to the utility model, the drying function and the deodorizing function can be quickly switched in the same air duct, the structure is simple, the switching efficiency is high, the manufacturing cost and the failure rate are reduced, the structure is compact, and the space utilization rate is high.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of toilet bowl accessories, especially to a drying and deodorizing device for toilet bowl. BACKGROUND

[0002] In modern home life, as the core equipment of the bathroom, the functionality and user experience of the toilet bowl are increasingly valued by consumers. With the progress of science and technology and the improvement of living standards, the toilet bowl not only meets the basic functions but also integrates more humanized design elements. The warm air drying and deodorizing functions have become key elements to improve the use experience of the toilet bowl. However, the drying and deodorizing functions of most toilet bowls on the market are independent systems, that is, each function is equipped with a special fan and air duct system, which has the problems of large space occupation and high production cost.

[0003] In order to solve the above problems, the utility model patent with publication number CN116517081A proposes a deodorizing and drying device and a toilet bowl, which integrates the drying and deodorizing functions on the same system by using a common fan and air duct. Although it solves the problems of space occupation and production cost, it still has some shortcomings: the existing technology uses a complex mechanical structure such as a slidingly connected first and second housings, a valve assembly, and a transmission member to control the opening and closing of each air inlet and outlet to realize the switching of the deodorizing and drying working modes. The manufacturing and maintenance are difficult, the structure is complex, and an additional power source is needed to drive the mechanical structures to move, resulting in high energy consumption and high production cost. In addition, the switching process of the drying and deodorizing working modes is relatively complicated, which affects the switching efficiency. At the same time, the sliding design of the first and second housings requires sufficient expansion space, making it difficult to further reduce the overall volume and resulting in poor space utilization. SUMMARY

[0004] The utility model aims to provide a drying and deodorizing device for toilet bowl to solve the problem that the drying and deodorizing functions are integrated on the same system in the prior art, but the structure is complex, the manufacturing and maintenance are difficult, the energy consumption is high, the production cost is high, the switching efficiency is low, and the space utilization is poor.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions:

[0006] A drying and deodorizing device for toilet bowl, comprising:

[0007] a housing, the housing is formed with an air duct, and a first air inlet, a second air inlet, a first air outlet, and a second air outlet connected with the air duct;

[0008] The air supply device is installed in the air duct and is configured to be capable of forward air supply to make external air enter from the first air inlet and blow out through the first air outlet and / or reverse air supply to make external air enter from the second air inlet and blow out through the second air outlet;

[0009] The heating device is installed in the air duct and located between the air supply device and the first air outlet, and is used for heating the air flowing therethrough;

[0010] The deodorizing device is installed in the air duct and located between the air supply device and the second air outlet, and is used for deodorizing the air flowing therethrough, and is configured to be capable of unidirectional passing of the air;

[0011] The first cover plate, the second cover plate and the third cover plate are respectively arranged on the first air inlet, the second air inlet and the first air outlet, and are configured to be capable of opening or closing the first air inlet, the second air inlet or the first air outlet according to the air supply direction of the air supply device.

[0012] According to the above technical means, through the forward and reverse air supply of the air supply device and in combination with the deodorizing device, the first cover plate, the second cover plate and the third cover plate, the rapid switching of the drying function and the deodorizing function in the same air duct is realized, the structure is simple, the switching efficiency is high, the manufacturing cost and the failure rate are reduced, wherein the deodorizing device is configured to have the function of unidirectional passing of the air, so that the air can smoothly flow through the deodorizing device when blown out from the air duct to the second air outlet, and the deodorizing device has a large air resistance to the air flowing therethrough when the air is blown into the air duct from the second air outlet, so as to prevent the backflow of the non-deodorized air and guarantee the deodorizing effect; and the first cover plate, the second cover plate and the third cover plate control the opening or closing of the first air inlet, the second air inlet and the first air outlet through the air force generated by the air supply device and the gravity thereof respectively, without the need of an additional power source for driving, which not only has low energy consumption, but also prevents water from splashing into the air duct to ensure the hygiene and safety of the air duct, prolongs the service life of the whole device, ensures the overall appearance beauty, and has a compact structure and high space utilization rate.

[0013] Specifically, the second air inlet and the first air outlet are respectively located at one end of the air duct, and the first air inlet and the second air outlet are respectively located at the other end of the air duct; in actual application, the shell is installed on the toilet bowl, so that the second air inlet corresponds to the inner cavity of the toilet bowl; the air supply device can be an axial flow fan capable of forward blowing and reverse suction; the heating device can be a mica heater; and the deodorizing device can be a unidirectional filtering material for absorbing odor

[0014] When the drying function is needed, the air supply device blows air forward, at this time the second cover plate keeps the second air inlet closed, and the external air cannot enter the air duct from the second air outlet under the block of the deodorizing device, so that the forward air flow pressure generated by the air duct overcomes the gravity of the first cover plate and the third cover plate, respectively opens the first air inlet and the first air outlet, so that the external air enters the air duct from the first air inlet, and then flows through the heating device and is blown out from the first air outlet after being heated, to perform the drying work, after the drying work is completed, the first cover plate and the third cover plate are reset under the action of their own gravity, and the first air inlet and the first air outlet are closed, to prevent the water in the toilet from splashing into the air duct to ensure the hygiene and safety of the air duct, prolong the service life of the whole device, and ensure the overall appearance beauty, it can be understood that;

[0015] When the deodorizing function is needed, the air supply device blows air backward, at this time the first cover plate and the third cover plate keep the first air inlet and the first air outlet closed respectively, so that the backward air flow pressure generated in the air duct opens the second air inlet, and the air in the cavity region of the toilet enters the air duct from the second air inlet, and then flows through the deodorizing device and is blown out from the second air outlet after being deodorized, to perform the deodorizing work;

[0016] Among them, those skilled in the art can understand that when the air supply device blows air forward, the air flow pressure generated by blowing air on one side of the air supply device overcomes the gravity of the third cover plate to open the first air outlet, and the air flow pressure generated by sucking air on the other side overcomes the gravity of the first cover plate to open the first air inlet; when the air supply device blows air backward, the air flow pressure generated by sucking air on one side of the air supply device overcomes the gravity of the third cover plate to open the first air outlet, and the air flow pressure generated by blowing air on the other side makes the air flow blow out from the second air outlet;

[0017] Further, the air duct comprises a first channel, a second channel and a third channel, one end of the first channel is connected with the first air outlet, the other end thereof is connected with one end of the second channel, the other end of the second channel is connected with one end of the third channel, and the other end of the third channel is connected with the second air outlet;

[0018] The first air inlet is connected with the third channel and located between the deodorizing device and the second channel, and the second air inlet is connected with the first channel and located between the second channel and the first air outlet.

[0019] According to the above technical means, by dividing the air duct into independent and interconnected first channel, second channel and third channel, not only the manufacturing and installation convenience is improved, but also the individual maintenance of each channel and component is facilitated, the maintenance cost and time are reduced, the air flow path is clear, the structure is more compact, and the space utilization is improved.

[0020] Further, the cross-sectional area of the first channel gradually decreases in the direction from the second channel to the first air outlet.

[0021] According to the above technical means, since the cross-sectional area of the first channel gradually decreases in the direction of the positive air supply, when the air supply device is positively supplied, according to the principle of fluid mechanics, the airflow gradually accelerates in the first channel, thereby enhancing the intensity and speed of the airflow blown out of the first air outlet, and the airflow is gradually compressed during the flow process, the energy is more concentrated, which can provide sufficient temperature while maintaining low energy consumption to meet the drying demand, thereby improving the drying efficiency and the space utilization rate is high.

[0022] Specifically, in actual application, when the air supply device is positively supplied, the external air enters the first channel after being heated by the heating device. Due to the gradual decrease of the cross-sectional area, the airflow starts to accelerate and is compressed, so that the airflow has higher speed and energy density when reaching the first air outlet, thereby being able to more effectively perform the drying work on the toilet area, and the working efficiency is high.

[0023] Further, the third channel includes an arc-shaped transition section and a vertical flow guide section, one end of the arc-shaped transition section is in communication with one end of the second channel, the other end of the arc-shaped transition section is in communication with one end of the vertical flow guide section, the other end of the vertical flow guide section is in communication with the second air outlet, the deodorizing device is installed in the vertical flow guide section, and the first air inlet is formed on the side wall of the arc-shaped transition section and is opposite to the second channel.

[0024] According to the above technical means, the third channel composed of the arc-shaped transition section and the vertical flow guide section makes the second air outlet and the first air inlet in different planes, which not only avoids the air that is not completely deodorized due to damage of the deodorizing device and other factors from entering the air duct through the first air inlet, avoids mutual interference, and ensures the cleanliness of the air in the first air inlet area, but also makes the third channel more flexible, facilitates the interface with the toilet or other equipment, and has a simple structure, convenient installation and maintenance.

[0025] Specifically, in actual application, the arc-shaped transition section can be a 90-degree turning structure, and the first air inlet is formed at the turning place of the structure, which is just opposite to the second channel, not only reducing the path of air entering the second channel from the first air inlet, but also making the first air inlet and the second air outlet in different planes to avoid mutual interference.

[0026] Further, a first rotating shaft is rotatably installed on the first air inlet, the first cover plate is connected with the first rotating shaft, and the first cover plate is configured to rotate around the central axis of the first rotating shaft to open the first air inlet when the air supply device is positively supplied, or to close the first air inlet when the air supply device is reversely supplied.

[0027] According to the above technical means, the first cover plate is rotatably installed on the first air inlet through the first rotating shaft, the first rotating shaft serves as the fulcrum of rotation of the first cover plate, ensuring that the first cover plate can stably and reliably rotate around the central axis, thereby realizing the opening and closing operation of the first air inlet, and the structure is simple and convenient to install.

[0028] Specifically, in actual application, when the air supply device is forward air supply, the airflow pressure generated by air suction on one side of the air supply device overcomes the gravity of the first cover plate, pulls the first cover plate to rotate around the first rotating shaft into the air duct, thereby opening the first air inlet; on the contrary, when the air supply device is reverse air supply, due to the change of airflow direction, the airflow pressure generated by air blowing on one side of the air supply device makes the first cover plate keep the first air inlet closed under the action of its own gravity and the reverse pressure of the airflow; when the air supply device is not working, the first cover plate keeps the first air inlet closed under its own gravity.

[0029] Further, it further comprises a weight block, the weight block is fixed at the lower end of the first cover plate, the first rotating shaft is connected to the axis at the center of the first cover plate and located above the weight block, the upper end of the first cover plate is located in the third channel and can abut against the inner wall thereof, and the lower end of the first cover plate is located outside the third channel and can abut against the outer wall thereof; the first cover plate is configured such that when the air supply device is forward air supply, the upper end of the first cover plate can overcome the gravity of the weight block and rotate around the first rotating shaft in the third channel to open the first air inlet; when the air supply device is reverse air supply, the weight block drives the first cover plate to reset to close the first air inlet.

[0030] According to the above technical means, the first cover plate is rotatably installed on the first air inlet through the first rotating shaft, the first rotating shaft divides the first cover plate into two parts with the same area, the weight block is fixed at the lower part of the first cover plate, providing a stable gravity center for the first cover plate, so that the first cover plate can automatically reset after rotation to close the first air inlet, and the upper part of the first cover plate is close to the second channel, facilitating the airflow pressure generated in the second channel to act on the first cover plate;

[0031] Specifically, when the air supply device is forward air supply, the airflow pressure generated by air suction on one side of the air supply device overcomes the gravity of the first cover plate and the weight block, pulls the upper part of the first cover plate to rotate around the first rotating shaft into the air duct, the upper part of the first cover plate rotates out of the air duct, thereby opening the first air inlet; when the air supply device is not working, the first cover plate resets to close the first air inlet under the action of the gravity of the weight block and the first cover plate; when the air supply device is reverse air supply, the airflow pressure generated by air blowing on one side of the air supply device makes the first cover plate and the shell fit more closely, ensuring that the first air inlet is in a closed state.

[0032] Furthermore, the second cover plate includes at least one louver, each of which is spaced apart along the air supply direction and installed in the second air inlet. Each of the louvers is inclined and configured such that when the air supply device supplies air in the forward direction, each of the louvers can guide the flowing air to the first air outlet; when the air supply device supplies air in the reverse direction, outside air can pass through the gaps between the louvers and enter the air duct.

[0033] Based on the aforementioned technical means, louvers are used as the main component of the second cover plate. Through their inclined arrangement and spacing, when the air supply device supplies air in the forward direction, according to Bernoulli's principle, the inclined louvers guide the airflow toward the first air outlet, thereby reducing or preventing the airflow in the duct from passing through the gaps between the louvers and blowing out from the second air inlet. This allows the second air inlet to be in a closed state. Although a small amount of airflow blown out from the second air inlet does not affect the airflow of the first air outlet, it can be ignored. When the air supply device supplies air in the reverse direction, under the action of suction, outside air passes through the gaps between the louvers and enters the duct through the second air inlet. The structure is simple and compact, reducing space occupation.

[0034] Furthermore, it also includes a second rotating shaft, which is rotatably mounted on the first air outlet. Two connecting blocks are slidably sleeved on the second rotating shaft, and the two connecting blocks are fixed on the third cover plate. The third cover plate is configured to rotate about the central axis of the second rotating shaft to open the first air outlet when the air supply device supplies air in the forward direction, or to close the first air outlet when the air supply device supplies air in the reverse direction.

[0035] According to the above technical means, the third cover plate is rotatably installed on the first air outlet through the second rotating shaft. The second rotating shaft serves as the fulcrum for the rotation of the third cover plate, ensuring that the first cover plate can rotate smoothly and reliably around its central axis, thereby realizing the opening and closing operation of the first air outlet. The structure is simple and easy to install. At the same time, the third cover plate can also slide on the second rotating shaft through two connecting blocks to adjust its position. The structure is compact, flexible, and easy to maintain and clean.

[0036] Specifically, when the air supply device blows air in the forward direction, the airflow pressure generated by the airflow on one side of the air supply device overcomes the weight of the third cover plate itself, pushing the third cover plate to rotate outward around the second rotating axis, thereby opening the first air outlet; when the air supply device is not working, the third cover plate returns to its original position and closes the first air outlet under the action of its own weight; when the air supply device blows air in the reverse direction, the airflow pressure generated by the suction on one side of the air supply device makes the third cover plate fit more tightly with the shell, ensuring that the first air outlet is in the closed state; when it is necessary to adjust the position of the third cover plate for cleaning and maintenance or to keep the first air outlet open, the third cover plate is adjusted to the required position by pushing the two connecting blocks to slide on the second rotating axis.

[0037] Further, the fastening ring and the stopper are sleeved on the second rotating shaft, the stopper is fixed on the third cover plate, the fastening ring is located between the stopper and one of the connecting blocks, and the fastening ring is used for limiting the third cover plate.

[0038] According to the technical means, the fastening ring is sleeved on the second rotating shaft and located between the stopper and one of the connecting blocks, so that friction is provided, the third cover plate is limited, and the third cover plate is prevented from moving at unnecessary times.

[0039] Specifically, when it is necessary to adjust the position of the third cover plate, the third cover plate is manually pushed, the fastening ring is pushed to a required position of the third cover plate under the action of the stopper and one of the connecting blocks, and good stability and convenient adjustment are achieved.

[0040] Further, the shell comprises an upper shell and a lower shell, the upper shell is covered on the lower shell, the first clamping piece is mounted on the upper shell, the second clamping piece is mounted on the lower shell, and the first clamping piece and the second clamping piece can be clamped.

[0041] According to the technical means, the shell is divided into the upper shell and the lower shell, assembly and maintenance are facilitated, the structural strength of the shell is improved through clamping of the first clamping piece and the second clamping piece, good stability is achieved, and convenient disassembly and assembly are achieved, and the first clamping piece can be a protruding buckle and the second clamping piece can be a groove.

[0042] The utility model realizes the beneficial effect that:

[0043] 1. The air supply device of the utility model is provided with positive and reverse air supply, and is combined with the deodorization device, the first cover plate, the second cover plate and the third cover plate, so that the drying function and the deodorization function in the same air duct can be quickly switched, the structure is simple, the switching efficiency is high, and the manufacturing cost and the failure rate are reduced.

[0044] 2. The deodorization device in the utility model is configured to have the function of allowing air to pass in one direction, so that when air is blown out from the air duct to the second air outlet, the air can smoothly flow through the deodorization device, and when air is blown into the air duct from the second air outlet, the deodorization device has a large air resistance to the air flowing therethrough, so as to prevent the backflow of air that has not been deodorized, and the deodorization effect is guaranteed.

[0045] 3. The first cover plate, the second cover plate and the third cover plate in the utility model are controlled to be opened or closed by the wind power generated by the air supply device and the self-gravity, respectively, so as to be driven without an additional power source, which not only has low energy consumption, but also prevents water from splashing into the air duct to ensure the hygiene and safety of the air duct, prolongs the service life of the whole device, guarantees the appearance beauty of the whole device, and has a compact structure and high space utilization rate. BRIEF DESCRIPTION OF DRAWINGS

[0046] Figure 1 is an overall exploded view of the utility model;

[0047] Figure 2 is an overall sectional view of the utility model;

[0048] Figure 3 is a structure schematic view of the first channel and the first air outlet of the utility model;

[0049] Figure 4 is a structure schematic view of the third channel of the utility model;

[0050] Figure 5 is a structure schematic view of the third cover plate of the utility model.

[0051] 1 - shell, 11 - air duct, 111 - first channel, 112 - second channel, 113 - third channel, 12 - first air inlet, 13 - second air inlet, 14 - first air outlet, 15 - second air outlet, 16 - upper shell, 161 - first clamping piece, 17 - lower shell, 171 - second clamping piece, 2 - air supply device, 3 - heating device, 4 - deodorizing device, 5 - first cover plate, 51 - first rotating shaft, 52 - weight block, 6 - second cover plate, 7 - third cover plate, 71 - second rotating shaft, 72 - connecting block, 73 - fastening ring, 74 - stop block.

[0052] The drawings are only used for illustrative description, and should not be understood as a limitation of the patent; in order to better illustrate the embodiment, some components in the drawings are omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings can be omitted; the same or similar reference numerals correspond to the same or similar components; the terms used to describe the positional relationship in the drawings are only used for illustrative description, and should not be understood as a limitation of the patent. DETAILED DESCRIPTION

[0053] It should be noted that the embodiments and technical features in the present application can be combined with each other without conflict, and the detailed description in the specific embodiments should be understood as an explanation of the purpose of the present application, and should not be regarded as an improper limitation of the present application.

[0054] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the specific technical scheme of the present application will be further described in detail below in combination with the drawings in the embodiments of the present application. The following embodiments are used to illustrate the present application, but not to limit the scope of the present application.

[0055] In the embodiments of the present application, the terms "first", "second" are used only for descriptive purposes, and cannot be construed as indicating or implying relative importance or implying the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the embodiments of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0056] In the embodiments of the present application, unless otherwise explicitly specified and limited, the term "connection" should be understood broadly, for example, "connection" can be fixed connection, or detachable connection, or integral; can be directly connected, or indirectly connected through intermediate medium.

[0057] In the embodiments of the present application, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or includes elements inherent to such process, method, article or device. Without more limitations, the element defined by the sentence "including a" does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0058] In the embodiments of the present application, the words such as "exemplary" or "for example" are used to represent as an example, illustration or description. Any embodiment or design scheme described as "exemplary" or "for example" in the embodiments of the present application should not be interpreted as more preferred or more advantageous than other embodiments or design schemes. Rather, the words such as "exemplary" or "for example" are intended to present the relevant concept in a specific manner.

[0059] The technical solutions of the present application will be described in detail below in combination with specific drawings.

[0060] The present embodiment relates to a drying and deodorizing device for a toilet bowl, such as Figure 1 and Figure 2As shown, a toilet drying and deodorizing device includes: a housing 1, in which an air duct 11 is formed, and a first air inlet 12, a second air inlet 13, a first air outlet 14, and a second air outlet 15 communicating with the air duct 11; an air supply device 2, installed in the air duct 11, configured to supply air in a forward direction so that external air enters from the first air inlet 12 and is blown out through the first air outlet 14; and / or supply air in a reverse direction so that external air enters from the second air inlet 13 and is blown out through the second air outlet 15; and a heating device 3, installed in the air duct 11 and located in the air supply device. Between the air supply device 2 and the first air outlet 14, the air is heated; the deodorizing device 4 is installed in the air duct 11 and located between the air supply device 2 and the second air outlet 15, and is used to deodorize the air flowing through it. The deodorizing device 4 is configured to allow air to pass through in one direction; the first cover plate 5, the second cover plate 6 and the third cover plate 7 are respectively covered on the first air inlet 12, the second air inlet 13 and the first air outlet 14, and are configured to open or close the first air inlet 12, the second air inlet 13 or the first air outlet 14 according to the air supply direction of the air supply device 2.

[0061] This embodiment achieves rapid switching between drying and deodorizing functions within the same air duct 11 by combining forward and reverse air supply of the air supply device 2 with the deodorizing device 4, the first cover plate 5, the second cover plate 6 and the third cover plate 7. The structure is simple, the switching efficiency is high, and the manufacturing cost and failure rate are reduced.

[0062] Specifically, the deodorizing device 4 is configured to allow unidirectional airflow, so that air can flow smoothly through the deodorizing device 4 when it is blown out from the air duct 11 to the second air outlet 15, while the deodorizing device 4 has a large air resistance when air is blown into the air duct 11 from the second air outlet 15. The second air inlet 13 and the first air outlet 14 are located at one end of the air duct 11, and the first air inlet 12 and the second air outlet 15 are located at the other end of the air duct 11. In practical application, the housing 1 is installed on the toilet so that the second air inlet 13 corresponds to the inner cavity of the toilet. The air supply device 2 can be an axial flow fan that can blow air in the forward direction and draw air in the reverse direction. It can be understood that the axial flow fan blows air from one side and draws air from the other side when it is working. The heating device 3 can be a mica heater. The deodorizing device 4 can be a unidirectional filter material that absorbs odors, such as a deodorizing block.

[0063] When the drying function is needed, the air supply device 2 blows air forward, at this time the second cover plate 6 keeps the second air inlet 13 closed, and the external air cannot enter the air duct 11 from the second air outlet 15 under the blockage of the deodorization device 4, so that the forward air flow pressure generated in the air duct 11 overcomes the gravity of the first cover plate 5 and the third cover plate 7, respectively opens the first air inlet 12 and the first air outlet 14, so that the external air enters the air duct 11 from the first air inlet 12, then flows through the heating device 3 and is blown out from the first air outlet 14 after being heated, to perform the drying work, after the drying work is completed, the first cover plate 5 and the third cover plate 7 are reset under the action of their own gravity, respectively closing the first air inlet 12 and the first air outlet 14, to prevent the water in the toilet from splashing into the air duct 11 to ensure the hygiene and safety of the air duct 11, prolong the service life of the overall device, and ensure the overall appearance beauty;

[0064] When the deodorization function is needed, the air supply device 2 blows air backward, at this time the first cover plate 5 and the third cover plate 7 keep the first air inlet 12 and the first air outlet 14 closed respectively, so that the backward air flow pressure generated in the air duct 11 opens the second air inlet 13 by the second cover plate 6, the air in the cavity region of the toilet enters the air duct 11 from the second air inlet 13, then flows through the deodorization device 4 and is blown out from the second air outlet 15 after being deodorized, to perform the deodorization work;

[0065] Among them, those skilled in the art can understand that when the air supply device 2 blows air forward, the air flow pressure generated by blowing air on one side of the air supply device 2 overcomes the gravity of the third cover plate 7 to open the first air outlet 14, and the air flow pressure generated by sucking air on the other side overcomes the gravity of the first cover plate 5 to open the first air inlet 12; when the air supply device 2 blows air backward, the air flow pressure generated by sucking air on one side of the air supply device 2 overcomes the gravity of the third cover plate 7 to open the first air outlet 14, and the air flow pressure generated by blowing air on the other side makes the air flow blow out from the second air outlet 15;

[0066] In this embodiment, the air duct 11 includes a first channel 111, a second channel 112 and a third channel 113, one end of the first channel 111 is connected with the first air outlet 14, the other end thereof is connected with one end of the second channel 112, the other end of the second channel 112 is connected with one end of the third channel 113, and the other end of the third channel 113 is connected with the second air outlet 15; the first air inlet 12 is connected with the third channel 113 and located between the deodorization device 4 and the second channel 112, and the second air inlet 13 is connected with the first channel 111 and located between the second channel 112 and the first air outlet 14.

[0067] As Figure 2As shown, the embodiment divides the air duct 11 into the first channel 111, the second channel 112 and the third channel 113, which are independent and interconnected. This not only improves the convenience of manufacturing and installation, but also facilitates the individual maintenance of each channel and component, reduces the maintenance cost and time, and makes the airflow path clear, making the structure more compact and improving the space utilization.

[0068] Further, as a preferred embodiment of the present embodiment, the cross-sectional area of the first channel 111 gradually decreases in the direction from the second channel 112 to the first air outlet 14; as Figure 2 As shown in FIG. 3, in actual application, when the air supply device 2 is positively air supplied, the external air enters the first channel 111 after being heated by the heating device 3. Due to the gradual decrease of the cross-sectional area, the airflow starts to accelerate and is compressed, so that the airflow has a higher speed and energy density when reaching the first air outlet 14, thereby being able to more effectively dry the toilet area, with high work efficiency.

[0069] Further, as a preferred embodiment of the present embodiment, the third channel 113 includes an arc-shaped transition section and a vertical flow guide section, one end of the arc-shaped transition section is in communication with one end of the second channel 112, the other end of the arc-shaped transition section is in communication with one end of the vertical flow guide section, the other end of the vertical flow guide section is in communication with the second air outlet 15, the deodorizing device 4 is installed in the vertical flow guide section, and the first air inlet 12 is arranged on the side wall of the arc-shaped transition section and opposite to the second channel 112; as Figure 2 and Figure 4 As shown, specifically, in actual application, the arc-shaped transition section can be a structure with a 90-degree turn, and the first air inlet 12 is arranged at the turn of the structure, which is just opposite to the second channel 112, not only reducing the path of air entering the second channel 112 from the first air inlet 12, but also enabling the first air inlet 12 and the second air outlet 15 to be in different planes, avoiding mutual interference.

[0070] In the present embodiment, a first rotating shaft 51 is further included, the first rotating shaft 51 is rotatably installed on the first air inlet 12, the first cover plate 5 is connected with the first rotating shaft 51, and the first cover plate 5 is configured to rotate around the central axis of the first rotating shaft 51 to open the first air inlet 12 when the air supply device 2 is positively air supplied, or to close the first air inlet 12 when the air supply device 2 is reversely air supplied.

[0071] As shown in FIG. 4, in actual application, when the air supply device 2 is reversely air supplied, the first cover plate 5 is rotated around the first rotating shaft 51 to close the first air inlet 12, so that the air in the first channel 111 cannot enter the second channel 112, and the air in the second channel 112 cannot enter the third channel 113, thereby preventing the air from entering the second air outlet 15 and avoiding the interference between the first air inlet 12 and the second air outlet 15. Figure 1 and Figure 4As shown, in actual application, when the air supply device 2 is forwardly air supplying, the air flow pressure generated by air suction on one side of the air supply device 2 overcomes the gravity of the first cover plate 5, and pulls the first cover plate 5 to rotate inwardly around the first rotating shaft 51 into the air duct 11, so as to open the first air inlet 12; on the contrary, when the air supply device 2 is reversely air supplying, due to the change of air flow direction, the air flow pressure generated by air blowing on one side of the air supply device 2 makes the first cover plate 5 keep the first air inlet 12 closed under the action of its own gravity and the reverse pressure of the air flow; when the air supply device 2 is not working, the first cover plate 5 keeps the first air inlet 12 closed under its own gravity.

[0072] In the embodiment, the first cover plate 5 is divided into two parts with the same area by the first rotating shaft 51, and the weight block 52 is fixed to the lower part of the first cover plate 5, the first rotating shaft 51 is connected to the axis at the center of the first cover plate 5 and located above the weight block 52, the upper end of the first cover plate 5 is located in the third channel 113 and can abut against the inner wall thereof, and the lower end of the first cover plate 5 is located outside the third channel 113 and can abut against the outer wall thereof; the first cover plate 5 is configured to, when the air supply device 2 is forwardly air supplying, the upper end of the first cover plate 5 can overcome the gravity of the weight block 52 and rotate in the third channel 113 around the first rotating shaft 51 to open the first air inlet 12; when the air supply device 2 is reversely air supplying, the weight block 52 drives the first cover plate 5 to reset to close the first air inlet 12.

[0073] As shown in Figure 1 and Figure 4 In the embodiment, the first cover plate 5 is divided into two parts with the same area by the first rotating shaft 51, and the weight block 52 is fixed to the lower part of the first cover plate 5, the first rotating shaft 51 is connected to the axis at the center of the first cover plate 5 and located above the weight block 52, the upper end of the first cover plate 5 is located in the third channel 113 and can abut against the inner wall thereof, and the lower end of the first cover plate 5 is located outside the third channel 113 and can abut against the outer wall thereof; the first cover plate 5 is configured to, when the air supply device 2 is forwardly air supplying, the upper end of the first cover plate 5 can overcome the gravity of the weight block 52 and rotate in the third channel 113 around the first rotating shaft 51 to open the first air inlet 12; when the air supply device 2 is reversely air supplying, the weight block 52 drives the first cover plate 5 to reset to close the first air inlet 12.

[0074] In this embodiment, the second cover plate 6 includes at least one louvered plate. Each louvered plate is spaced apart along the air supply direction and installed in the second air inlet 13. Each louvered plate is inclined and configured such that when the air supply device 2 supplies air in the forward direction, each louvered plate can guide the flowing air to the first air outlet 14; when the air supply device 2 supplies air in the reverse direction, outside air can pass through the gaps between each louvered plate and enter the air duct 11.

[0075] like Figure 3 As shown, in this embodiment, louvers are used as the main component of the second cover plate 6. Through their inclined arrangement and spacing, when the air supply device 2 supplies air in the forward direction, according to Bernoulli's principle, the inclined louvers guide the airflow toward the first air outlet 14, thereby reducing or preventing the airflow in the duct 11 from passing through the gaps between the louvers and blowing out from the second air inlet 13, so that the second air inlet 13 can be closed. Although a small amount of airflow blown out from the second air inlet 13 will not affect the airflow of the first air outlet 12, it can be ignored. When the air supply device 2 supplies air in the reverse direction, under the action of suction, the outside air passes through the gaps between the louvers and enters the duct 11 from the second air inlet 13. The structure is simple and compact, reducing space occupation.

[0076] In this embodiment, a second rotating shaft 71 is also included. The second rotating shaft 71 is rotatably mounted on the first air outlet 14. Two connecting blocks 72 are slidably sleeved on the second rotating shaft 71. The two connecting blocks 72 are fixed on the third cover plate 7. The third cover plate 7 is configured to rotate around the central axis of the second rotating shaft 71 to open the first air outlet 14 when the air supply device 2 supplies air in the forward direction, or to close the first air outlet 14 when the air supply device 2 supplies air in the reverse direction.

[0077] like Figure 1 As shown, in practical application, when the air supply device 2 supplies air in the forward direction, the air pressure generated by the air supply device 2 overcomes the weight of the third cover plate 7, pushing the third cover plate 7 to rotate outward around the second rotating shaft 71, thereby opening the first air outlet 14. When the air supply device 2 is not working, the third cover plate 7 returns to its original position and closes the first air outlet 14 under the action of its own weight. When the air supply device 2 supplies air in the reverse direction, the air pressure generated by the suction on one side of the air supply device 2 makes the third cover plate 7 fit more tightly with the housing 1, ensuring that the first air outlet 14 is in a closed state. When it is necessary to adjust the position of the third cover plate 7 for cleaning and maintenance or to keep the first air outlet 14 open, the third cover plate 7 is adjusted to the required position by pushing the two connecting blocks 72 to slide on the second rotating shaft 71.

[0078] In the embodiment, the fastening ring 73 and the stopper 74 are sleeved on the second rotating shaft 71, the stopper 74 is fixed on the third cover plate 7, and the fastening ring 73 is located between the stopper 74 and one of the connecting blocks 72, and the fastening ring 73 is used for limiting the third cover plate 7.

[0079] As shown in Figure 1 and Figure 5 , the fastening ring 73 of the embodiment provides friction to limit the third cover plate 7, so as to prevent the third cover plate 7 from moving when it is not needed; specifically, when it is needed to adjust the position of the third cover plate 7, the third cover plate 7 is manually pushed, the fastening ring 73 is pushed to the required position of the third cover plate 7 under the action of the stopper 74 and one of the connecting blocks 72, and the stability is good and the adjustment is convenient.

[0080] In the embodiment, the shell 1 includes an upper shell 16 and a lower shell 17, the upper shell 16 is covered on the lower shell 17, the first clamping member 161 is installed on the upper shell 16, the second clamping member 171 is installed on the lower shell 17, and the first clamping member 161 and the second clamping member 171 can be clamped.

[0081] As shown in Figure 1 , the shell 1 is divided into the upper shell 16 and the lower shell 17 in the embodiment, so that the assembly and maintenance are facilitated, the structural strength of the shell is improved through the clamping of the first clamping member 161 and the second clamping member 171, the stability is good, and the disassembly and assembly are convenient, wherein the first clamping member 161 can be a protruding buckle, and the second clamping member 171 can be a groove.

[0082] The serial numbers of the embodiments of the application are only for description, and do not represent the advantages and disadvantages of the embodiments. The above is only the preferred embodiment of the application, and does not limit the patent scope of the application, and any equivalent structure or equivalent process transformation, direct or indirect application in other related technical fields, is also included in the patent protection scope of the application.

Claims

1. A drying and deodorizing device for a toilet, characterized in that, The application relates to a ventilation device, comprising: a shell (1) in which a wind channel (11) and a first air inlet (12), a second air inlet (13), a first air outlet (14) and a second air outlet (15) are formed; an air supply device (2) installed in the wind channel (11), which is configured to supply air in a forward direction so that external air enters from the first air inlet (12) and is blown out through the first air outlet (14), and / or in a reverse direction so that external air enters from the second air inlet (13) and is blown out through the second air outlet (15); a heating device (3) installed in the wind channel (11) and located between the air supply device (2) and the first air outlet (14) for heating air flowing therethrough; a deodorizing device (4) installed in the wind channel (11) and located between the air supply device (2) and the second air outlet (15) for deodorizing air flowing therethrough, which is configured to allow air to pass through in one direction; a first cover plate (5), a second cover plate (6) and a third cover plate (7) covering the first air inlet (12), the second air inlet (13) and the first air outlet (14) respectively, and configured to open or close the first air inlet (12), the second air inlet (13) or the first air outlet (14) according to the air supply direction of the air supply device (2).

2. The drying and deodorizing device for toilet bowl according to claim 1, characterized in that, The wind channel (11) comprises a first channel (111), a second channel (112) and a third channel (113), one end of the first channel (111) is connected with the first air outlet (14), the other end of the first channel (111) is connected with one end of the second channel (112), the other end of the second channel (112) is connected with one end of the third channel (113), and the other end of the third channel (113) is connected with the second air outlet (15); The first air inlet (12) is connected with the third channel (113) and located between the deodorizing device (4) and the second channel (112), and the second air inlet (13) is connected with the first channel (111) and located between the second channel (112) and the first air outlet (14).

3. The drying and deodorizing device for toilet bowl according to claim 2, characterized in that, The cross-sectional area of the first channel (111) gradually decreases in the direction from the second channel (112) to the first air outlet (14).

4. The drying and deodorizing device for toilet bowl according to claim 2, characterized in that, The third channel (113) comprises an arc-shaped transition section and a vertical flow guide section, one end of the arc-shaped transition section is connected with one end of the second channel (112), the other end of the arc-shaped transition section is connected with one end of the vertical flow guide section, the other end of the vertical flow guide section is connected with the second air outlet (15), the deodorizing device (4) is installed in the vertical flow guide section, and the first air inlet (12) is arranged on the side wall of the arc-shaped transition section and opposite to the second channel (112).

5. The drying and deodorizing device for toilet bowl according to claim 4, characterized in that, The first rotating shaft (51) is rotatably installed on the first air inlet (12), and the first cover plate (5) is connected with the first rotating shaft (51), and the first cover plate (5) is configured to rotate around the central axis of the first rotating shaft (51) to open the first air inlet (12) when the air supply device (2) is in forward air supply, or to close the first air inlet (12) when the air supply device (2) is in reverse air supply.

6. The drying and deodorizing device for toilet bowl according to claim 5, wherein The first rotating shaft (51) is rotatably installed on the first air inlet (12), and the first cover plate (5) is connected with the first rotating shaft (51), and the first cover plate (5) is configured to rotate around the central axis of the first rotating shaft (51) to open the first air inlet (12) when the air supply device (2) is in forward air supply, or to close the first air inlet (12) when the air supply device (2) is in reverse air supply.

7. The drying and deodorizing device for toilet bowl according to claim 2, characterized in that, The second cover plate (6) comprises at least one louver plate, each of the louver plates is spaced apart along the air supply direction and is installed in the second air inlet (13), each of the louver plates is inclined and configured to guide the air flowing therethrough to the first air outlet (14) when the air supply device (2) is in forward air supply, and the external air can enter the air duct (11) through the gap between each of the louver plates when the air supply device (2) is in reverse air supply.

8. The drying and deodorizing device for toilet bowl according to claim 2, characterized in that, The second rotating shaft (71) is rotatably installed on the first air outlet (14), and two connecting blocks (72) are slidably sleeved on the second rotating shaft (71), and the third cover plate (7) is fixed on the two connecting blocks (72), and the third cover plate (7) is configured to rotate around the central axis of the second rotating shaft (71) to open the first air outlet (14) when the air supply device (2) is in forward air supply, or to close the first air outlet (14) when the air supply device (2) is in reverse air supply.

9. The drying and deodorizing device for toilet bowl according to claim 8, characterized in that, The fastening ring (73) and the stop block (74) are sleeved on the second rotating shaft (71), the stop block (74) is fixed on the third cover plate (7), and the fastening ring (73) is located between the stop block (74) and one of the connecting blocks (72), and the fastening ring (73) is used for limiting the third cover plate (7).

10. The drying and deodorizing device for toilet bowl according to claim 1, characterized in that, The shell (1) comprises an upper shell (16) and a lower shell (17), the upper shell (16) covers the lower shell (17), the first clamping piece (161) is installed on the upper shell (16), the second clamping piece (171) is installed on the lower shell (17), and the first clamping piece (161) and the second clamping piece (171) can be clamped.

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