Manual washing machine with an air intake structure at one side end

The manual washing device with a side-end air inlet and check valves addresses clogging and leakage issues, ensuring reliable dispensing and hygiene through balanced pressure and ergonomic design, reducing costs and improving user experience.

DE202026100185U1Active Publication Date: 2026-03-12LI XINGHONG SHENZHEN
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Patent Information

Authority / Receiving Office
DE · DE
Patent Type
Utility models
Current Assignee / Owner
Filing Date
2026-01-14
Publication Date
2026-03-12

AI Technical Summary

Technical Problem

Existing manual rinsing devices suffer from clogging and leakage issues due to poorly positioned air inlets, particularly when stored horizontally or submerged, leading to contamination and waste of cleaning solution.

Method used

A manual washing device with an air inlet structure at a side end, featuring a silicone bottle body, rinsing nozzle, and connecting tube, equipped with check valves at the air and liquid outlets to prevent backflow and leakage, ensuring balanced pressure and ergonomic design.

Benefits of technology

The side-end air inlet with check valves maintains unobstructed ventilation and prevents leakage, ensuring reliable dispensing and hygiene, reducing production and operating costs while enhancing user experience.

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Abstract

Manual washing device with an air inlet structure at a lateral end, characterized in that it comprises: a silicone bottle body, a rinsing nozzle and a connecting tube; wherein the silicone bottle body is provided with a liquid outlet and an air inlet; wherein one end of the connecting tube is connected to the liquid outlet on the silicone bottle body and the other end is connected to the rinsing nozzle, thereby establishing a connecting line between the silicone bottle body and the rinsing nozzle; furthermore, a nozzle check valve is provided at one position of the liquid outlet of the silicone bottle body to prevent backflow of liquid through the connecting tube; wherein the air inlet of the silicone bottle body is provided at a side section at an upper end of the silicone bottle body, and wherein an air inlet check valve is provided in the air inlet to prevent liquid from escaping the silicone bottle body.
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Description

Technical field

[0001] The present utility model relates to the technical field of washing appliances, in particular a manual washing appliance with an air inlet structure at a lateral end. State of the art

[0002] Manual irrigation devices, meaning devices that introduce and flush liquids through manual operation, are widely used in healthcare and personal care. They play an important role in oral, anal, and vaginal hygiene, for example. They typically consist of a silicone container and a flushing nozzle and must be manually filled with warm water or other liquids. The liquid is then directed through the nozzle to perform the cleaning process.

[0003] However, the air inlet design of existing manual rinsing devices is generally poorly positioned. The main flaw lies in the common practice of placing the air inlet at the bottom of the bottle body. When stored horizontally, the bottom air inlet is highly susceptible to clogging by residual liquid in the bottle. This not only prevents proper pressure equalization but can also cause liquid to leak through the air inlet, contaminating storage areas or wasting cleaning solution. Even with some products where attempts have been made to optimize the bottom air inlet design, problems such as clogging and leakage during horizontal storage are difficult to avoid. Furthermore, when used at an angle, the bottom air inlet is completely submerged in liquid, significantly exacerbating the leakage problem. Disclosure of the registration

[0004] To solve the above problem technically, the present invention uses the following technical solutions: A manual washing device with an air inlet structure at one side end, comprising the following: a silicone bottle body, a rinsing nozzle and a connecting tube; wherein the silicone bottle body is provided with a liquid outlet and an air inlet; wherein one end of the connecting tube is connected to the liquid outlet on the silicone bottle body and the other end is connected to the rinsing nozzle, thereby creating a connecting line between the silicone bottle body and the rinsing nozzle; furthermore, a nozzle check valve is provided at one position of the liquid outlet of the silicone bottle body to prevent backflow of liquid through the connecting tube; wherein the air inlet of the silicone bottle body is provided at a side section at an upper end of the silicone bottle body, and wherein an air inlet check valve is provided in the air inlet to prevent liquid from escaping the silicone bottle body.

[0005] Furthermore, the air inlet check valve comprises an air inlet valve seat and an air inlet valve core that is provided inside the air inlet valve seat.

[0006] Furthermore, the nozzle check valve comprises a shut-off valve seat and a shut-off valve core, which is provided within the shut-off valve seat.

[0007] Furthermore, the shut-off valve core of the nozzle check valve is a watertight compression plug, wherein a limiting cap is provided at the upper end of the shut-off valve seat, wherein a connecting end of the watertight compression plug is provided on the limiting cap, and wherein a plug section extends in a direction towards a liquid inlet of the shut-off valve seat to achieve a seal.

[0008] Furthermore, the shut-off valve core of the nozzle check valve is provided at the upper end with a valve core magnet and a valve core connecting element to limit the valve core magnet; wherein a valve seat cover is provided at the upper end of the shut-off valve seat, wherein a lower end of the valve seat cover is provided with a valve seat magnet and a valve seat connecting element for limiting the valve seat magnet; wherein the valve core magnet and the valve seat magnet are arranged opposite each other with like poles in order to form a mutually repulsive magnetic interaction.

[0009] The advantageous effects of this utility model are as follows: The arrangement of the air inlet on a side section of the upper end of the silicone bottle body, in combination with an air inlet check valve, ensures unobstructed ventilation during horizontal storage. This maintains balanced internal and external pressure and prevents stalled pouring and collapse of the bottle body. Consequently, leakage is precisely prevented when the bottle is tilted. Simultaneously, the nozzle check valve at the liquid outlet prevents backflow, thus providing double protection for the hygiene and safety of the cleaning solution. This arrangement requires no complex components and features a streamlined, ergonomic structure, which reduces both production and operating costs while simultaneously increasing ease of use.It addresses numerous shortcomings of existing designs with an air inlet on the underside and meets both storage and usage requirements to optimize the overall cleaning experience. Drawings of the disclosure Fig. Figure 1 shows a cross-sectional view of the structure of the present utility model. Fig. Figure 2 shows a schematic representation of the structure of an air inlet check valve with a conical valve core of the present utility model. Fig. Figure 3 shows another schematic representation of the structure of the air inlet check valve with a conical valve core of the present utility model. Fig. Figure 4 shows another schematic representation of the structure of an air inlet check valve with a diaphragm valve core of the present utility model. Fig. Figure 5 shows a schematic representation of the structure of an air inlet check valve with a steel ball valve core of the present utility model. Fig. Figure 6 shows a schematic representation of the structure of a nozzle check valve with a watertight compression plug of the present utility model. Fig. Figure 7 shows another schematic representation of the structure of a magnetic nozzle check valve of the present utility model. Fig. Figure 8 shows a schematic representation of the external structure of the present utility model. Specific embodiments

[0010] The technical solutions in the embodiments disclosed herein are clearly and completely described below in conjunction with the accompanying drawings. It is clear that the described embodiments represent only a part of the embodiments disclosed herein and not all of them. It is understood that the present application is not limited to the exemplary embodiments disclosed herein. Based on the embodiments disclosed herein, all other embodiments that could be obtained by a person skilled in the art without inventive step fall within the scope of protection of the present application.

[0011] In the description of the present utility model, it is understood that the terms, e.g., "length", "width", "thickness", "top", "bottom", "front", "back", "left", "right", "vertical", "horizontal", "above", "below", "inside", "outside", which indicate the orientation or positional relationship, are based on the orientation or positional relationship shown in the attached drawings, serve only for the sake of simplicity and to simplify the description of the present utility model, and do not indicate or imply that the device or element referred to must have a particular orientation or be designed and operated with a particular orientation, and are therefore not to be understood as a limitation of the present utility model.

[0012] Furthermore, terms such as "first," "second," etc., serve only to describe the purpose and are not to be understood as indicating their relative importance or implicitly defining the number of specified technical features. Consequently, features designated as "first" or "second" may expressly or implicitly include one or more of these features. In the description of this utility model, "a plurality of" means two or more, unless expressly defined otherwise.

[0013] In the description of this utility model, it should be noted that the terms, e.g., "mounted," "connected," "fastened," are to be understood broadly, unless expressly stated otherwise and limited, e.g., as either a permanent connection, a detachable connection, or a connection in one piece; a mechanical connection or an electrical connection; a direct connection or an indirect connection via an intermediate medium, or a connection within two elements. The specific meaning of the aforementioned terms in this utility model is clear to a person competent in the field.

[0014] As in Fig. As shown in Figures 1 to 8, the present utility model provides a manual washing device with an air inlet structure at a lateral end, comprising the following: a silicone bottle body 7 and an insertion section 9 for insertion into the cleaning area in order to carry out cleaning operations; wherein the inlet section 9 comprises a flushing nozzle 1 and a connecting pipe 2; wherein the silicone bottle body 7 is provided with a liquid outlet 8 and an air inlet 5; wherein one end of the connecting tube 2 is connected to the liquid outlet 8 on the silicone bottle body 7 and the other end is connected to the rinsing nozzle 1, thereby creating a connecting line between the silicone bottle body 7 and the rinsing nozzle 1, forming a bottle neck structure that can penetrate into the cleaning area.

[0015] During use, the insertion section 9 is inserted into the anal cavity. By squeezing the silicone bottle body 7, the user allows air to flow in through the air inlet 5, causing liquid to flow through the connecting tube 2 and out of the rinsing nozzle 1, thus achieving a cleansing effect on the anal area.

[0016] To prevent backflow of the cleaning solution, a nozzle check valve 6 is provided at the liquid outlet 8 of the silicone bottle body 7 to prevent backflow of liquid through the connecting tube. This prevents residual liquid in the connecting tube 2 from flowing back into the bottle body, thus preventing contamination of the cleaning solution in the silicone bottle body 7 and ensuring its cleanliness and hygiene.

[0017] To ensure that the silicone bottle body 7 can dispense liquid when squeezed while preventing leakage, an air inlet check valve is provided in the air inlet 5 to prevent liquid from escaping the silicone bottle body 7. The air inlet 5 is located on a side section at the upper end of the silicone bottle body 7. In this configuration, the air inlet 5 remains open when the bottle is in a horizontal position to maintain continuous venting and equalize internal and external pressure. This prevents interruptions in liquid dispensing or collapse of the bottle body due to negative pressure. When tilted at a specific angle, the valve core closes automatically, thus precisely preventing liquid from escaping.This arrangement ensures even ventilation and reliable leakage protection and is suitable for both horizontal storage and inclined use.

[0018] Furthermore, the air inlet check valve 9 comprises an air inlet valve seat 91 and an air inlet valve core 92, which is provided within the air inlet valve seat 91;

[0019] The air inlet valve core 92 can have one of the following designs: a conical valve core (as in Fig. 10 to 11), a diaphragm valve core (as shown in Fig. 12) or a steel ball valve core (as shown in Fig. (13 shown). During operation, it seals the inlet valve seat 91 to prevent the cleaning solution from escaping the silicone bottle. When air enters, it lifts the air inlet valve core 92, thereby opening the air inlet valve seat 91 and enabling the air inlet function. Furthermore, an air inlet filter seat 93 is provided at the air inlet point of the air inlet valve seat 91 to prevent foreign particles from entering the silicone bottle body 7 along with the air.

[0020] Furthermore, the nozzle check valve 6 comprises a shut-off valve seat 61 and a shut-off valve core 62, which is provided within the shut-off valve seat 61. The shut-off valve core can have one of the following common designs: duckbill valve core, cross valve core, or diaphragm valve core.

[0021] To meet different operational requirements, such as in Fig. As shown in Figure 6, the shut-off valve core 62 of the nozzle check valve 6 is further a watertight compression plug 62, wherein a limiting cap 64 (the limiting cap 64 is provided with a through-hole) is provided at the upper end of the shut-off valve seat 61, wherein a connecting end of the watertight compression plug 62 is provided on the limiting cap 64, and a plug section extends in a direction towards a liquid inlet of the shut-off valve seat 61 to achieve a seal. Furthermore, the limiting cap 64 is provided with a guide pillar 65 that prevents displacement or misalignment of the watertight compression plug 62.

[0022] Furthermore, the nozzle check valve 6, as described in Fig.7 shown, also having a magnetic check valve structure, the shut-off valve core 62 is provided at the upper end with a valve core magnet 612 and a valve core connecting element 610 for limiting the valve core magnet 612;

[0023] At the upper end of the shut-off valve seat 61, a valve seat cap 67 (the valve seat cap 67 is provided with a through-hole) is provided, wherein a lower end of the valve seat cap 67 is provided with a valve seat magnet 68 and a valve seat connecting element 68 for limiting the valve seat magnet 68; wherein the valve core magnet 612 and the valve seat magnet 68 are arranged opposite each other with like poles to form a mutually repulsive magnetic interaction. When the nozzle check valve 6 is not in use, the repulsive force acts on the movable valve core magnet 612, causing the shut-off valve core 62 to close the nozzle check valve 6.

[0024] To ensure that the shut-off valve core 62 does not shift during opening and closing, a guide groove 613 is formed on an inner end face of the shut-off valve seat 61, extending in the vertical direction. The valve core connecting element 610 is further provided on one side with a guide rod 611, which is embedded in the guide groove 613.

[0025] Furthermore, the connecting tube 2 features a silicone hose structure that allows for any bending without breakage; in addition, a serpentine tube 3 is attached to the connecting tube 2 to create pre-formed bends. The user can bend the serpentine tube 3 into any angle or shape according to practical requirements, thus complementing the multi-nozzle structure to meet comprehensive cleaning needs; moreover, the serpentine tube 3 also serves to protect the connecting tube 2.

[0026] Furthermore, the insertion section 9 (the rinsing nozzle 1, the connecting tube 2, and the serpentine tube 3) of the washer is coated with an outer silicone layer 4. This makes the entire surface of the insertion section 9 smoother, facilitating handling and cleaning. Contact with sensitive areas is non-irritating and hypoallergenic, significantly improving the overall user experience.

[0027] Finally, it should be noted that in this document, relationships such as "first" and "second," etc., are among the terms used solely to distinguish one entity or process from another, without necessarily requiring or implying the existence of any such actual relationship or sequence between those entities or processes. Furthermore, the terms "have," "include," or any other variant are intended to cover their exclusive inclusion, such that a process, procedure, object, or device comprising a set of elements includes not only those elements but also other elements not expressly listed or belonging to such process, procedure, object, or device. Without further limitation, the fact that an element is described as "with a..."“defined does not exclude the existence of another identical element in the process, method, object or apparatus that includes this element.

[0028] The above description of the disclosed embodiments enables a person skilled in the art to implement or use the present application. Various modifications of this embodiment will be obvious to a person skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Accordingly, the present application is not limited to the embodiments shown herein but is subject to the broadest scope of application compatible with the principles and novel features disclosed herein.

Claims

[1] Manual washing device with an air inlet structure at a lateral end, characterized in that it comprises: a silicone bottle body, a rinsing nozzle and a connecting tube; wherein the silicone bottle body is provided with a liquid outlet and an air inlet; wherein one end of the connecting tube is connected to the liquid outlet on the silicone bottle body and the other end is connected to the rinsing nozzle, thereby creating a connecting line between the silicone bottle body and the rinsing nozzle; furthermore, a nozzle check valve is provided at one position of the liquid outlet of the silicone bottle body to prevent backflow of liquid through the connecting tube; wherein the air inlet of the silicone bottle body is provided at a side section at an upper end of the silicone bottle body, and wherein an air inlet check valve is provided in the air inlet to prevent liquid from escaping the silicone bottle body. [2] Manual washing machine with an air inlet structure at a lateral end according to claim 1, characterized by that the air inlet check valve comprises an air inlet valve seat and an air inlet valve core provided within the air inlet valve seat. [3] Manual washing machine with an air inlet structure at a side end according to claim 1, characterized by that the nozzle check valve comprises a shut-off valve seat and a shut-off valve core provided within the shut-off valve seat. [4] Manual washing machine with an air inlet structure at a lateral end according to claim 3, characterized by, that the shut-off valve core of the nozzle check valve is a watertight compression plug, wherein a limiting cap is provided at the upper end of the shut-off valve seat, wherein a connecting end of the watertight compression plug is provided on the limiting cap, and wherein a plug section extends in a direction towards a liquid inlet of the shut-off valve seat to achieve a seal. [5] Manual washing machine with an air inlet structure at a lateral end according to claim 3, characterized by, that the shut-off valve core of the nozzle check valve is provided at its upper end with a valve core magnet and a valve core connecting element for limiting the valve core magnet; wherein a valve seat cap is provided at the upper end of the shut-off valve seat, wherein a lower end of the valve seat cap is provided with a valve seat magnet and a valve seat connecting element for limiting the valve seat magnet; wherein the valve core magnet and the valve seat magnet are arranged opposite each other with like poles in order to form a mutually repulsive magnetic interaction.