Sanitary odor treatment device and control method

Abstract

This invention discloses a sanitary odor treatment device and control method, relating to the field of sanitary cleaning equipment technology. The device includes an enclosing and guiding component and an odor treatment unit. The enclosing and guiding component has a split and integrated structure, and the mating parts have an airtight sealing structure to maintain negative pressure. An airflow driving device is installed inside. The shell encloses and forms a closed negative pressure gas collection space, which is suitable for multiple scenarios such as toilet chairs, nursing beds, and pet excretion equipment. It is equipped with manual control as standard and has a reserved standardized quick-release sensor upgrade interface. The odor treatment unit (20) has a built-in deformable activated carbon adsorption device (24), which is composed of multiple basic adsorption units. It supports folding, bending or rolling to adapt to irregularly shaped equipment. The odor treatment unit includes a multi-stage adsorption filtration structure and an optional UVC ultraviolet sterilization layer. The device supports direct discharge and purification dual modes, which can block the spread of odors at the source. The structure is flexible and the purification is stable, solving the technical problems of easy odor spread, single treatment mode and poor scene adaptability of existing sanitary excretion equipment.

Description

Technical Field

[0001] This invention belongs to the field of odor source control technology for sanitary excretion equipment, specifically involving an odor collection and treatment device and control method adapted to commode chairs, nursing beds and pet excretion equipment; this invention focuses on the physical isolation and exhaustion of odor generation points in the excretion area, which is different from general air purifiers, central deodorization systems and other space environment management technologies. Background Technology

[0002] Currently, household and medical commode chairs, nursing beds, pet toilets, and other hygiene and excretion devices produce irritating gases such as hydrogen sulfide and ammonia during use, which not only reduces user comfort but also pollutes the indoor air environment. Existing odor control solutions have many technical shortcomings.

[0003] The main shortcomings of existing technologies are as follows: First, the structural form is simple, mostly adopting an integrated structure, which cannot flexibly select direct discharge or purification mode according to the usage scenario, resulting in poor scenario adaptability and high user cost; Second, the odor collection effect is poor, failing to form an effective local negative pressure space in the excretion area, making it easy for odors to spread and failing to block them at the source; Third, the control mode is simple, only supporting manual control or mandatory standard sensor control, resulting in insufficient flexibility in use; Fourth, odor purification is incomplete, with short airflow residence time, and most technologies lack sterilization function, posing hygiene risks such as bacterial growth and cross-infection. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the defects of the existing technology, such as simple structure, poor odor blocking effect, rigid control mode and incomplete purification, and to provide a hygienic odor treatment device and control method with flexible structure, adaptability to multiple scenarios, odor blocking at the source and stable purification effect.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: It provides an enclosing flow guide component (10) for sanitary excretion devices such as commode chairs, nursing beds, and pet excretion devices. The enclosing flow guide component (10) includes a shell (11) and an airflow driving device (12). The shell (11) is divided into a split structure and an integrated structure. The split structure refers to the enclosing flow guide component (10) being set independently of the sanitary excretion device, while the integrated structure refers to the enclosing flow guide component (10) being integrally formed with the sanitary excretion device. The shell (11) encloses and forms an air collection cavity. The opening of the gas collection chamber faces the discharge area of ​​the sanitary excretion device, and the housing (11) is provided with an air outlet (14); the cooperating part of the enclosing guide member (10) and the sanitary excretion device is provided with a structure for achieving airtight sealing, maintaining negative pressure in the gas collection chamber and preventing odor leakage in the working state; the airflow drive device (12) is used to form negative pressure in the gas collection chamber and export the odor gas generated in the discharge area from the air outlet (14); in scenarios such as portable commode chairs and nursing beds that need to receive excrement, a waste collection bucket (18) or waste collection bag can be placed inside the enclosing guide member (10). Beneficial effects

[0006] Compared with the prior art, the present invention has the following beneficial effects: (1) Flexible structure and strong scene adaptability: Due to the adoption of split / integrated enclosed flow guiding components and optional direct discharge / purification dual mode design, users can switch freely according to actual needs and installation conditions, avoiding functional redundancy and reducing usage costs; (2) High efficiency in blocking odor sources: Due to the formation of a local negative pressure gas collection chamber in the excretion area and the airtight sealing structure, it can effectively prevent the spread of odors and achieve immediate collection from the point of generation, which is significantly better than open exhaust or post-exhaust space purification. (3) Stable and reliable purification effect: Due to the adoption of a multi-level collaborative purification architecture, even in a deformable structure that is not completely sealed, it can ensure that odorous gases fully contact the adsorption material and are intercepted by the terminal filter structure (26). Combined with UVC ultraviolet light for simultaneous sterilization, the purification efficiency and hygiene safety are significantly improved. (4) Flexible and intelligent control mode: Since it is equipped with manual control as standard and has reserved a standardized quick-release interface to support the plug-and-play use of the sensing module, it can meet the automation control needs of different scenarios such as the elderly, patients, and pets. It is easy to operate and has strong expandability. (5) Easy to maintain and controllable cost: Since the odor treatment unit (20) adopts a detachable design and the deformable adsorption structure can be adapted to irregular equipment, it is easy to replace consumables, does not require customized development, and is conducive to large-scale promotion.

[0007] Furthermore, the split structure is connected to the sanitary excretion equipment through an assembly mechanism (15), which includes at least one of Velcro, buckle, clamp, strap, magnetic component, suction cup, adhesive component, clamp, bolt, screw or pin; the sealing structure (13) is selected from one or more combinations of flexible or active airtight sealing materials / structures such as silicone sealing strip, rubber sealing strip, foam sealing strip, inflatable sealing component or air curtain sealing structure.

[0008] Furthermore, the airflow drive device (12) is selected from drive components that can generate stable negative pressure airflow, such as DC brushless fan, AC fan, diaphragm pump, jet pump or vacuum generator. It can be installed inside the housing (11) or set on the airflow path between the air outlet (14) and the odor treatment unit (20).

[0009] The enclosed flow guide component (10) can be equipped with a power supply module, including a rechargeable lithium battery or an external DC power adapter, which is suitable for the power supply needs of different usage scenarios such as home, medical, and outdoor portable, and provides stable power supply for electrical components such as airflow drive device (12) and controller (17).

[0010] Furthermore, the outlet end (14) of the enclosing guide component (10) can be directly connected to the exhaust pipe (19) to directly discharge the odor gas to the outside, or it can be connected to the odor treatment unit (20) to purify the odor gas before discharging it.

[0011] In terms of scene adaptation, the toilet chair, nursing bed and pet excretion equipment are all equipped with manual control unit as standard to realize basic start and stop control. At the same time, a standardized quick-release adapter interface is reserved. The interface conforms to the general electrical connection standard and supports plug-and-play sensors. The human body or live body sensing module (16) is a general upgrade configuration and can be plugged and plugged into the controller (17) through the interface. Among them, the pet excretion equipment scene is preferred to be equipped with a live body sensing module to take into account the automatic control needs of the human and pet shared scene.

[0012] The present invention also provides an odor treatment unit (20) that can be used in conjunction with the above-mentioned enclosing flow guiding member (10). The odor treatment unit (20) includes a shell (21), the shell (21) is provided with a gas inlet end (22) and a gas outlet end (23), the gas inlet end (22) is adapted to communicate with the gas outlet end (14) of the enclosing flow guiding member (10); the shell (21) is provided with an odor treatment component containing porous adsorption material, the porous adsorption material including at least one of activated carbon substrate, zeolite, metal-organic framework (MOFs) or ion exchange resin, and the odor gas is discharged from the gas outlet end (23) after being purified by the component.

[0013] Furthermore, the odor treatment component includes a deformable activated carbon adsorption device (24), which is composed of multiple basic adsorption units encapsulated with activated carbon substrate. Adjacent units can be connected by flexible sealing connectors or non-sealing connection structures. This structure allows the device to adapt to the deformation requirements of different installation spaces, while ensuring that the airflow preferentially flows through the activated carbon adsorption layer. Even if there are small gaps in some areas, pollutants are efficiently intercepted due to the double-sided adsorption capacity of activated carbon and the bottom-line effect of the downstream end filter structure (26).

[0014] Furthermore, the shell (21) is provided with a UVC ultraviolet sterilization layer (25, i.e., an ultraviolet sterilization module with a wavelength of 200–280 nm), which is located between the deformable activated carbon adsorption device (24) and the gas inlet end (22), or on the airflow path between the deformable activated carbon adsorption device (24) and the gas outlet end (23); the UVC ultraviolet sterilization layer (25) is electrically connected to the controller (17) of the enclosing flow guide component (10) to realize synchronous start and stop; the connection between the gas inlet end (22) and the gas outlet end (14) is sealed by a connection sealing structure (27), and the odor treatment unit (20) and the enclosing flow guide component (10) are detachably assembled by a unit assembly mechanism (28); the enclosing flow guide component (10) and the odor treatment unit (20) can be connected by a sealed connection, which includes a detachable connection or a non-detachable connection. Attached Figure Description

[0015] Figure 1 Schematic diagram of the enclosed flow guiding component structure; Figure 2 Schematic diagram of the internal structure of the open-type odor treatment unit; Figure 3 Schematic diagram of a split-type odor control device; Figure 4 Schematic diagram of the purification mode of the upper and lower assembly of the sanitary odor treatment device; Figure 5 A schematic diagram of the upper and lower assembly of the enclosed flow guiding component and the open structure odor treatment unit; Figure 6 Schematic diagram of the airflow path inside the open-structure odor treatment unit; Figure 7 Schematic diagram of airflow path for odor control methods; Figure 8 Schematic diagram of the direct discharge mode of the enclosed airflow guide component of the toilet seat; Figure 9 A schematic diagram of the odor treatment device assembled in the upper and lower parts of the toilet seat with its open sanitary structure.

[0016] Reference numerals: 10 – Enclosing and guiding component; 11 – Enclosing and guiding component shell; 12 – Airflow driving device; 13 – Sealing structure; 14 – Air outlet; 15 – Assembly mechanism; 16 – Human body or living body sensing module; 17 – Controller; 18 – Toilet container; 19 – Exhaust pipe; 20 – Odor treatment unit; 21 – Odor treatment unit shell; 22 – Gas inlet; 23 – Gas outlet; 24 – Deformable activated carbon adsorption device; 25 – UVC ultraviolet sterilization layer; 26 – Terminal filter structure; 27 – Connecting and sealing structure; 28 – Unit assembly mechanism.

[0017] Example 1: Odor treatment device suitable for toilet chairs.

[0018] This embodiment is applicable to household and medical commode chairs. The enclosing flow guide component (10) includes two structures: split type and integrated type. Both support direct discharge and purification dual modes. It is equipped with a manual control unit as standard and has a reserved interface for adding human body or live body sensing module (16) to achieve automatic control.

[0019] The split-type enclosed flow guide component (10) is an independent shell (11), which is assembled with the toilet seat by Velcro. The assembly surface is provided with a silicone sealing strip as a sealing structure (13) to achieve airtight sealing. After assembly, the shell (11) encloses to form an air collection chamber with the opening facing the toilet seat's excretion area. A DC brushless fan is installed inside the shell (11) as an airflow driving device (12).

[0020] For portable commode chairs, the bottom of the enclosed flow guide component (10) has a reserved interface for placing a waste collection bucket (18) or a disposable waste collection bag, so as to realize the simultaneous collection of excrement and odor.

[0021] The shell (11) of the integrated enclosed flow guide component (10) is integrally injection molded and directly fits under the seat ring of the toilet chair. It achieves airtight sealing through the sealing structure (13) and encloses to form an air collection chamber. A DC brushless fan is provided on the airflow path of the air outlet (14).

[0022] In the direct exhaust mode, the airflow drive device (12) is started and stopped manually or by sensor control, and the odor is directly discharged to the outside through the exhaust pipe (19). In the upper and lower assembly purification mode, the gas inlet end (22) of the odor treatment unit (20) is located at its top and is constructed as an open structure, that is, there is no closed cover plate at the top, directly forming a gas inlet. This open structure and the gas outlet end (14) at the bottom of the enclosing guide component (10) are tightly connected through the unit assembly mechanism (28) and the docking sealing structure (27) to form an integrated upper and lower assembly. The odor is adsorbed in multiple stages by the deformable activated carbon adsorption device (24) and the terminal filter structure (26), and is discharged after being sterilized by the UVC ultraviolet sterilization layer (25). After the operation is completed, the airflow drive device (12) and the UVC ultraviolet sterilization layer (25) are turned off after a delay.

[0023] The deformable activated carbon adsorption device (24) is composed of multiple basic adsorption units encapsulated with activated carbon substrates, and adjacent units can be connected by flexible connectors. The device is configured to guide the airflow to mainly flow through the activated carbon substrate in a folded or rolled state. Even if there are local gaps between units, due to the double-sided adsorption characteristics of activated carbon and the presence of the end filter structure (26), the escaping pollutants can still be effectively intercepted, resulting in high purification efficiency.

[0024] Example 2 provides an odor treatment device for a nursing bed.

[0025] This embodiment is applicable to home care beds and medical beds. The enclosing and guiding component (10) adopts a split structure and is assembled with the care bed by buckle. The assembly surface is provided with a foam sealing strip as a sealing structure (13). The shell (11) encloses and forms an air collection chamber. The air outlet (14) is connected to the exhaust pipe (19). An AC fan is provided on the pipe as an airflow driving device (12).

[0026] For the use of nursing beds, a stool collection bucket (18) or stool collection bag can be placed inside the enclosed flow guide component (10) to facilitate the collection of excrement and odor treatment.

[0027] This embodiment also supports both direct discharge and purification modes. Start-stop control can be achieved through manual control or by adding a human body or living body sensing module (16). The controller (17) can be equipped with a wired control switch to meet the operating needs of nursing bed users. The power supply module provides stable power supply for the entire device.

[0028] Example 3 provides an odor treatment device for pet excrement equipment.

[0029] This embodiment is applicable to pet toilets and pet excretion boxes. The enclosing and guiding component (10) adopts an integral molding or foldable structure. The shell (11) is made of waterproof, moisture-resistant, dirt-resistant and wear-resistant material. It is equipped with a silent DC brushless fan inside. It is preferred to install a human body or live body sensing module (16) to realize automatic start and stop when pets enter and exit without manual intervention.

[0030] The odor treatment unit (20) and the enclosing flow guide component (10) are designed as a single unit with detachable internal assembly; the deformable activated carbon adsorption device (24) inside the shell (21) is coiled into a spiral shape to maximize the extension of the adsorption path; combined with the end filter structure (26) and the UVC ultraviolet sterilization layer (25), it achieves efficient purification; the device is equipped with a rechargeable lithium battery, and its deployment location is flexible and not limited by external power supply.

[0031] Example 4 provides a method for operating a sanitary odor treatment device.

[0032] The method in this embodiment is applicable to all the above application scenarios; under the basic configuration, the airflow drive device (12) and the UVC ultraviolet sterilization layer (25) are started and stopped by the manual control unit; after adding the human body or living body sensing module (16), the living body recognition is automatically started and the system is delayed after the living body leaves, thus thoroughly dealing with residual odors.

[0033] The direct exhaust mode is suitable for scenarios with good indoor ventilation, directly exhausting odors to the outside; the purification mode is suitable for scenarios with no indoor ventilation, or for scenarios that pursue overall aesthetics and do not require exposed exhaust pipes (19); the odors are absorbed, filtered, and sterilized before being discharged indoors, with no odor diffusion throughout the process, making it convenient and hygienic to use.

[0034] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention; any modifications or equivalent changes made to the above embodiments based on the technical essence of the present invention shall fall within the protection scope of the technical solution of the present invention.

Claims

1. A confining and guiding component (10) for sanitary excretion equipment such as commode chairs, nursing beds, and pet defecation devices, characterized in that, The enclosing guide component (10) includes a shell (11) and an airflow driving device (12). The shell (11) is a split structure or an integrated structure. The split structure means that the enclosing guide component (10) is set independently of the sanitary excretion equipment, and the integrated structure means that the enclosing guide component (10) is integrally formed with the sanitary excretion equipment. The shell (11) encloses and forms an air collection chamber. The opening of the air collection chamber faces the excretion area of ​​the sanitary excretion equipment. The shell (11) is provided with an air outlet (14). The mating part of the shell (11) and the sanitary excretion equipment is provided with a structure for achieving airtight sealing, maintaining negative pressure in the air collection chamber and preventing odor leakage in the working state. The airflow driving device (12) is used to form negative pressure in the air collection chamber and to discharge the odor gas generated in the excretion area from the air outlet (14).

2. The enclosure and flow guiding component (10) according to claim 1 is characterized in that: the shell (11) is a rigid structure, a flexible structure or a soft-hard composite structure; the shell (11) is a cover, a barrier or a discrete baffle array; an assembly mechanism (15) is provided between the split structure and the sanitary excretion equipment, the assembly mechanism (15) includes at least one of Velcro, buckle, clamp, strap, magnetic component, suction cup, adhesive component, clamp, bolt, screw or pin; the structure for achieving airtight sealing is a sealing structure (13), the sealing structure (13) is at least one of silicone sealing strip, rubber sealing strip, foam sealing strip, inflatable sealing component, air curtain sealing structure or other flexible airtight sealing material; when applied to commode chairs or nursing beds, a stool collection bucket (18) or stool collection bag can be placed inside the enclosure and flow guiding component (10).

3. The enclosed flow guide component (10) according to claim 1 is characterized in that: the airflow driving device (12) is a DC brushless fan, AC fan, diaphragm pump, jet pump, vacuum generator or other driving component capable of generating stable negative pressure airflow; the airflow driving device (12) is located inside the housing (11) or outside the housing (11) and on the airflow path connected to the air outlet (14).

4. The enclosed flow guide component (10) according to claim 1 is characterized in that: the enclosed flow guide component (10) further includes a controller (17), the controller (17) is installed on the enclosed flow guide component (10); the controller (17) is electrically connected to the manual control unit, and is used to receive manual operation instructions from the user to control the start and stop of the airflow drive device (12) and the UVC ultraviolet sterilization layer (25); when the enclosed flow guide component (10) is applied to the sanitary excretion device, the controller (17) has a reserved standardized quick-release adapter interface, and the human body or living body sensing module (16) is a universal upgrade configuration that can be plugged and plugged into the controller (17) through the interface; when the human body or living body sensing module (16) senses a living body using it, the controller (17) automatically turns on the airflow drive device (12) and the UVC ultraviolet sterilization layer (25), and turns off the airflow drive device (12) and the UVC ultraviolet sterilization layer (25) after a preset delay after the living body leaves.

5. The enclosing guide member (10) according to claim 1 is characterized in that: the air outlet (14) of the enclosing guide member (10) can be directly connected to the exhaust pipe (19) to discharge the odor gas to the outside, or it can be connected to the odor treatment unit (20) to purify the odor gas before discharge.

6. An odor treatment unit (20), characterized in that: it includes a housing (21), the housing (21) having a gas inlet end (22) and a gas outlet end (23); the gas inlet end (22) is used to seal and connect with the gas outlet end (14) of the enclosing flow guiding member (10) according to any one of claims 1-5; the housing (21) is provided with an odor treatment component inside, the odor treatment component comprising a porous adsorption material, the porous adsorption material comprising at least one of activated carbon, zeolite, metal-organic frameworks (MOFs), and ion exchange resin, the odor gas being purified by the odor treatment component and then discharged from the gas outlet end (23).

7. The odor treatment unit (20) according to claim 6, characterized in that: the odor treatment component includes a deformable activated carbon adsorption device (24), the deformable activated carbon adsorption device (24) is composed of multiple basic adsorption units spliced ​​together, each basic adsorption unit encapsulates an activated carbon substrate as an adsorption core, adjacent basic adsorption units are connected by a flexible sealing connector or a non-sealing connection structure, the deformable activated carbon adsorption device (24) is configured to guide the airflow mainly through the activated carbon substrate in a folded, bent or rolled state; the gas exhaust The outlet (23) is provided with an end filter structure (26) for capturing escaped pollutants, which together with the deformable activated carbon adsorption device (24) constitute a multi-stage purification system; the shell (21) may be provided with a UVC ultraviolet sterilization layer (25, i.e., an ultraviolet sterilization module with a wavelength of 200–280nm), which is located in the airflow path between the deformable activated carbon adsorption device (24) and the gas inlet (22), or between the deformable activated carbon adsorption device (24) and the gas outlet (23), to sterilize the odor gas that flows through.

8. The odor treatment unit (20) according to claim 6 is characterized in that: the gas inlet end (22) is a top open structure or a connection end with a sealing interface; the gas inlet end (22) is provided with a docking sealing structure (27) and a unit assembly mechanism (28), the docking sealing structure (27) adopts a flexible sealing element, and the material is at least one of silicone sealing strip, rubber sealing strip, foam sealing strip or other flexible airtight sealing material; the unit assembly mechanism (28) includes at least one of Velcro, buckle, clamp, strap, magnetic suction, suction cup, adhesive, clamp, bolt, screw or pin, to realize the detachable sealed assembly of the odor treatment unit (20) and the enclosing guide component (10).

9. A sanitary odor treatment device, characterized in that it includes an enclosing flow guide member (10) as described in any one of claims 1-5 and an odor treatment unit (20) as described in any one of claims 6-8; the air outlet (14) of the enclosing flow guide member (10) is sealed and connected to the gas inlet (22) of the odor treatment unit (20) to form a continuous odor collection-purification airflow path, so that the odor gas completes multi-stage adsorption and optional sterilization treatment before being discharged.

10. A method for treating unpleasant odors, characterized by comprising the following steps: In the area where the sanitary excretion equipment is used, a sealed gas collection chamber is formed by the enclosing and guiding component (10) as described in any of claims 1-5. The airflow drive device (12) is activated to form a negative pressure in the gas collection chamber, blocking the spread of odors from the source. The control mode is selected according to the usage scenario. The basic manual control start and stop component is adopted. The human body or living body sensing module (16) as described in claim 4 can be selected to realize automatic start when a living body enters and preset delay to shut down the airflow drive device (12) and UVC ultraviolet sterilization layer (25) after the living body leaves. Then, the working mode is selected. In the direct discharge mode, the odor gas is directly discharged to the outside. In the purification mode, the odor gas is introduced into the odor treatment unit and discharged after adsorption by the deformable activated carbon adsorption device in the odor treatment unit, terminal filtration and optional UVC ultraviolet sterilization treatment. The human body or living body sensing module (16) is plugged and unplugged through the standardized quick-release adapter interface reserved by the controller (17) of claim 4, so as to realize the plug-and-play upgrade of the human body or living body sensing module.

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