Double-layer horn cover

Abstract

The utility model provides a double-layer horn cover, which relates to the technical field of breast pumps and comprises a flexible horn cover body and a rigid connecting piece. The horn cover body comprises a funnel-shaped attaching fixing layer and a funnel-shaped negative pressure positioning layer. The negative pressure positioning layer is arranged on the outer side of the attaching fixing layer. A small funnel opening of the attaching and fixing layer is hermetically connected with a small funnel opening of the negative pressure positioning layer; a gap is reserved between the funnel outer wall of the attaching and fixing layer and the funnel inner wall of the negative pressure positioning layer; the connecting piece comprises a funnel-shaped supporting piece and a connecting pipe; a pipe opening in one side of the connecting pipe is hermetically communicated with the small funnel opening of the supporting piece; the funnel of the supporting piece is fixed on the outer side of the funnel small opening of the negative pressure positioning layer; the funnel inner wall of the supporting piece is attached to and fixed to the funnel outer wall of the negative pressure positioning layer. The double-layer horn cover provided by the utility model solves the problem that the breast pump is easy to leak air in the use process, and can be used as a breast pump accessory to enhance the air tightness of the connection between the breast pump and the breast so as to reduce the air leakage.

Description

Technical Field

[0001] The utility model relates to the technical field of breast pumps, specifically a double-layer breast shield. Background Art

[0002] A breast pump is a commonly used tool for lactating mothers. Air leakage is a common problem with breast pumps. When a breast pump leaks air, it will affect the normal operation of the breast pump, and working under air leakage conditions may cause damage to other components of the breast pump (such as at the negative pressure device that provides suction, abnormal deformation of the flexible membrane causes damage to the negative pressure device); there are many reasons for air leakage in breast pumps. Some are air leakage inside the structure of the breast pump itself, which means the breast pump is damaged and needs repair. Another part is that the breast shield of the breast pump does not fit tightly with the mother's breast normally, resulting in a gap between the breast shield and the mother's breast and air leakage.

[0003] In the prior art, such as a breast pump with a leakage detection function disclosed in Chinese Patent Application No. 202023078223.X, it provides a breast pump that can monitor whether the breast pump leaks air, thus facilitating the mother to detect whether the breast pump is assembled incorrectly or is damaged and needs repair.

[0004] However, the method given in the above comparative document cannot solve the problem of air leakage between the breast shield and the mother's breast. Summary of the Utility Model

[0005] In view of the above technical problems, the double-layer breast shield provided by the utility model can enhance the airtightness of the connection between the breast pump and the mother's breast and reduce the occurrence of air leakage.

[0006] To achieve the above object, the technical solution adopted by the utility model is as follows:

[0007] The double-layer breast shield provided by the utility model includes a flexible breast shield body and a rigid connecting piece; the breast shield body includes a funnel-shaped fitting and fixing layer and a funnel-shaped negative pressure positioning layer; the negative pressure positioning layer is arranged outside the fitting and fixing layer; the small funnel opening of the fitting and fixing layer is hermetically connected to the small funnel opening of the negative pressure positioning layer; the large funnel openings of the fitting and fixing layer and the negative pressure positioning layer face the same direction; there is a gap between the outer wall of the funnel of the fitting and fixing layer and the inner wall of the funnel of the negative pressure positioning layer; the connecting piece includes a funnel-shaped support piece and a connecting pipe; one side pipe opening of the connecting pipe is hermetically communicated with the small funnel opening of the support piece; the funnel of the support piece is fixed outside the small funnel opening of the negative pressure positioning layer; the outer wall of the funnel of the support piece is fixedly attached to the outer wall of the funnel of the negative pressure positioning layer.

[0008] The double-layer horn cover provided by the present utility model, preferably, a funnel-shaped groove is formed on the outer wall of the funnel of the negative pressure positioning layer; the shape of the groove matches the shape of the inner wall of the funnel of the support member; the thickness of the groove is consistent with the wall thickness of the funnel of the support member; the inner wall of the funnel of the support member is smoothly connected to the outer wall of the funnel of the negative pressure positioning layer.

[0009] The double-layer horn cover provided by the present utility model, preferably, the support member is a plastic part; the horn cover body is made of silica gel; the support member and the horn cover body are integrally formed by injection molding and encapsulation.

[0010] The above technical solution has the following advantages or beneficial effects:

[0011] The present utility model provides a double-layer horn cover, which relates to the technical field of breast pumps and includes a flexible horn cover body and a rigid connecting member; the horn cover body includes a funnel-shaped fitting and fixing layer and a funnel-shaped negative pressure positioning layer; the negative pressure positioning layer is arranged outside the fitting and fixing layer; the small opening of the funnel of the fitting and fixing layer is hermetically connected to the small opening of the funnel of the negative pressure positioning layer; the large opening of the funnel of the fitting and fixing layer and the large opening of the funnel of the negative pressure positioning layer face in the same direction; a gap is left between the outer wall of the funnel of the fitting and fixing layer and the inner wall of the funnel of the negative pressure positioning layer; the connecting member includes a funnel-shaped support member and a connecting pipe; one side opening of the connecting pipe is hermetically communicated with the small opening of the funnel of the support member; the funnel of the support member is fixed outside the small opening of the funnel of the negative pressure positioning layer; the inner wall of the funnel of the support member is fixedly attached to the outer wall of the funnel of the negative pressure positioning layer. The double-layer horn cover provided by the present utility model solves the problem of easy air leakage during the use of breast pumps and can be used as a breast pump accessory to enhance the airtightness of the connection with the breast in the breast pump, thereby reducing air leakage. Description of the Drawings

[0012] By reading the detailed description of the non-restrictive embodiments with reference to the following drawings, the present utility model and its features, appearance and advantages will become more obvious. The same reference numerals indicate the same parts in all the drawings. The drawings are not deliberately drawn to scale, and the focus is on showing the gist of the present utility model.

[0013] Figure 1 It is a schematic cross-sectional structure diagram of the double-layer horn cover provided by Embodiment 1 of the present utility model.

[0014] Figure 2 It is a schematic cross-sectional structure diagram of the double-layer horn cover fixed to a breast pump provided by Embodiment 1 of the present utility model.

[0015] Figure 3It is a schematic explosion structure diagram when the bell cover body of the breast pump with close fit provided in Embodiment 1 of the present utility model is separated after being connected to the connecting piece fixed on the three-way component 01 of the breast pump. Detailed implementation manners

[0016] The following describes the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. Therefore, the detailed descriptions provided in the accompanying drawings of the embodiments of the present utility model below are not intended to limit the scope of the present utility model to be protected, but only represent the selected embodiments of the present utility model. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present utility model.

[0017] Embodiment 1: The breast pump in the prior art is prone to air leakage during use. There are many reasons for air leakage, and the most important one is the air leakage caused by the lack of close fit between the bell cover of the breast pump and the breast. To solve this problem, the double-layer bell cover provided in Embodiment 1 of the present utility model is as Figures 1 to 3 shown, including a flexible bell cover body 1 and a rigid connecting piece 2; the bell cover body 1 includes a funnel-shaped fitting and fixing layer 11 and a funnel-shaped negative pressure positioning layer 12 (the positional relationship between the fitting and fixing layer and the negative pressure positioning layer is the prior art. For example, a nipple protector provided in Chinese Patent Application No. 202020699514.1 discloses the connection relationship between the fitting and fixing layer and the negative pressure positioning layer); the negative pressure positioning layer 12 is arranged outside the fitting and fixing layer 11; the funnel small mouth of the fitting and fixing layer 11 is hermetically connected to the funnel small mouth of the negative pressure positioning layer 12; the funnel large mouth of the fitting and fixing layer 11 and the funnel large mouth of the negative pressure positioning layer 12 face the same direction (the expressions of the funnel large mouth and the funnel small mouth are the prior art. In a fertilizer packaging machine funnel disclosed in Chinese Patent Application No. 201420632194.2, the large mouth of the funnel cone is the funnel large mouth in this embodiment, and the small mouth of the funnel cone is the funnel small mouth in this embodiment. The funnel large mouth direction is along the axis of the funnel, from the funnel small mouth towards the funnel large mouth direction); there is a gap between the funnel outer wall of the fitting and fixing layer 11 and the funnel inner wall of the negative pressure positioning layer 12; the connecting piece 2 includes a funnel-shaped support member 21 and a connecting pipe 22; one side pipe orifice of the connecting pipe 22 is hermetically communicated with the funnel small mouth of the support member 21; the funnel of the support member 21 is fixed outside the funnel small mouth of the negative pressure positioning layer 12; the funnel inner wall of the support member 21 is closely attached and fixed to the funnel outer wall of the negative pressure positioning layer 12.

[0018] When the double-layer horn cover provided in Embodiment 1 of the present utility model is in use, it needs to be used in conjunction with the other components of the breast pump in the prior art. Specifically, the connecting pipe 22 of the device provided in this embodiment is hermetically connected to the milk inlet of the three-way assembly 01 (the specific structure of the breast pump is the prior art, such as a three-way assembly of a breast pump with replaceable cups disclosed in Chinese Patent Application No. 202120041016.2. The connecting pipe 22 of the device provided in this embodiment has the same structure as the small-diameter pipe of its insertion pipe for connecting to the three-way housing). During specific use, the mother's breast is close to the bilateral horn covers 1, the funnel inner walls of the fitting and fixing layer 11 and the negative pressure positioning layer 12 are both tightly attached to the breast, and the nipple is aligned with the small funnel opening of the fitting and fixing layer 11. When negative pressure is generated in the three-way assembly (the principle of generating negative pressure in the three-way assembly is the prior art in the field of breast pumps and will not be elaborated here), in order to maintain the air pressure balance between the inside of the three-way assembly and the mother's breast, the milk in the mother's breast will flow into the three-way assembly and be transported to the milk bottle of the breast pump through the three-way assembly; compared with the prior art that uses a single-layer horn cover as the component that abuts against the mother's breast, in this embodiment, first, the funnel inner walls of the fitting and fixing layer 11 and the negative pressure positioning layer 12 of the flexible horn cover body 1 will both tightly adhere to the breast surface. This means that when there is a gap between one of the fitting and fixing layer 11 and the negative pressure positioning layer 12 and the mother's breast, the other one can still ensure the sealed abutment between the horn cover body 1 and the mother's breast, thus providing one more layer of guarantee for avoiding air leakage compared with the existing single-layer horn cover; second, since the horn cover body 1 is overall flexible (the existing horn covers are all made of flexible silicone), when the air pressure in the three-way assembly changes, if the overall deformation degree of the double-layer horn cover is large, the deformation of the negative pressure positioning layer 12 of the horn cover body 1 may cause the deformation of the fitting and fixing layer 11. When there is air leakage at the abutment between the fitting and fixing layer 11 and the breast, the flexible fitting and fixing layer 11 may re-abut against the mother's breast and seal after a period of air leakage. However, during this period, the negative pressure affects the negative pressure positioning layer 12, causing the deformation of the negative pressure positioning layer 12. The overall flexible structure may cause the deformation of the negative pressure positioning layer 12 to drive the deformation of the fitting and fixing layer 11, resulting in the re-deformation of the fitting and fixing layer 11 that has re-abutted against the breast and air leakage. In this embodiment, due to the rigid, funnel-shaped structure provided by the support member 21 on the outer wall of the negative pressure positioning layer 12, part of the structure of the negative pressure positioning layer 12 is fixed, thereby defining the positions of deformation and non-deformation of the negative pressure positioning layer 12 (only the large funnel opening of the negative pressure positioning layer 12 is completely flexible and can be deformed without being restricted), so as to better make the double-layer horn cover tightly sealed against the breast.

[0019] The double-layer horn cover provided in Embodiment 1 of the present utility model solves the problem that the breast pump is prone to air leakage during use, and can be used as a breast pump accessory to enhance the airtightness of the connection with the breast in the breast pump, thereby reducing air leakage.

[0020] As a preferred solution, in this embodiment, a funnel-shaped groove 121 is provided on the outer wall of the funnel of the negative pressure positioning layer 12; the shape of the groove 121 matches the shape of the inner wall of the funnel of the support member 21; the thickness of the groove 121 is the same as the wall thickness of the funnel of the support member 21; the outer wall of the funnel of the support member 21 is smoothly connected to the outer wall of the funnel of the negative pressure positioning layer 12. By providing the groove 121, the outer wall of the funnel of the negative pressure positioning layer 12 directly exposed to the outside is smoothly connected to the outer wall of the support member 21, thereby preventing the support member 21 from protruding on the outer wall of the negative pressure positioning layer 11 and affecting the aesthetics of the entire breast pump. Moreover, the smooth outer wall of the bell cover is easier to clean than the outer wall of the bell cover with height differences, avoiding the generation of stain-containing places due to the height difference at the fixing position between the outer wall of the funnel of the negative pressure positioning layer 12 and the support 21, which hinders the cleaning of the double-layer bell cover.

[0021] As a preferred solution, in this embodiment, the support member 21 is a plastic part; the bell cover body 1 is made of silicone; the support member 21 and the bell cover body 1 are integrally formed by injection molding with encapsulation. Injection molding with encapsulation is a common method in the prior art for producing the bell cover of a breast pump. The combination of flexible silicone and rigid plastic allows the mother to use the bell cover more comfortably (in the prior art, for example, a breast pump three-way component with replaceable cups disclosed in Chinese Patent Application No. 202120041016.2 has its bell cover integrally formed by injection molding with encapsulation).

[0022] In summary, the present invention provides a double-layer bell cover, which relates to the technical field of breast pumps and includes a flexible bell cover body and a rigid connecting member; the bell cover body includes a funnel-shaped fitting and fixing layer and a funnel-shaped negative pressure positioning layer; the negative pressure positioning layer is arranged outside the fitting and fixing layer; the small opening of the funnel of the fitting and fixing layer is hermetically connected to the small opening of the funnel of the negative pressure positioning layer; the large opening of the funnel of the fitting and fixing layer and the large opening of the funnel of the negative pressure positioning layer face the same direction; there is a gap between the outer wall of the funnel of the fitting and fixing layer and the inner wall of the funnel of the negative pressure positioning layer; the connecting member includes a funnel-shaped support member and a connecting pipe; one side opening of the connecting pipe is hermetically communicated with the small opening of the funnel of the support member; the funnel of the support member is fixed outside the small opening of the funnel of the negative pressure positioning layer; the inner wall of the funnel of the support member is abutted and fixed to the outer wall of the funnel of the negative pressure positioning layer. The double-layer bell cover provided by the present invention solves the problem of easy air leakage during the use of the breast pump and can be used as a breast pump accessory to enhance the airtightness of the connection with the breast in the breast pump, thereby reducing air leakage.

[0023] The above are only the preferred embodiments of the present utility model, and thus do not limit the patent scope of the present utility model. Any equivalent structural transformation made by using the content of the specification and drawings of the present utility model, or directly or indirectly applied in other related technical fields, shall similarly be included within the patent protection scope of the present utility model.

Claims

1. A double-layer speaker cover, characterized in that: It includes a flexible horn cover body and a rigid connecting piece; The horn cover body comprises a funnel-shaped fitting fixing layer and a funnel-shaped negative pressure positioning layer; the negative pressure positioning layer is arranged outside the fitting fixing layer; the small funnel opening of the fitting fixing layer is tightly connected with the small funnel opening of the negative pressure positioning layer; the large funnel opening of the fitting fixing layer is in the same direction as the large funnel opening of the negative pressure positioning layer; a gap is left between the outer wall of the funnel of the fitting fixing layer and the inner wall of the funnel of the negative pressure positioning layer; The connecting piece includes a funnel-shaped supporting piece and a connecting pipe; a pipe opening on one side of the connecting pipe is in sealed communication with the small funnel opening of the supporting piece; The funnel of the support member is fixed outside the small opening of the funnel of the negative pressure positioning layer; the inner wall of the funnel of the support member is fixed against the outer wall of the funnel of the negative pressure positioning layer.

2. The double-layer speaker cover according to claim 1, characterized in that: The outer wall of the funnel of the negative pressure positioning layer is provided with a funnel-shaped groove; the shape of the groove matches the shape of the inner wall of the funnel of the support member; the thickness of the groove is consistent with the thickness of the funnel wall of the support member; The outer wall of the funnel of the support member is smoothly connected with the outer wall of the funnel of the negative pressure positioning layer.

3. The double-layer speaker cover according to claim 2, characterized in that: The support member is a plastic part; the speaker cover body is silicone; the support member and the speaker cover body are integrally formed by injection molding.

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