Nipple sealing structure for breast pump

Abstract

The utility model provides a nipple sealing structure for a breast pump, which relates to the technical field of breast pumps and comprises a mounting sleeve, an annular clamping groove is arranged between the inner walls of the mounting sleeve, a silicon rubber sleeve is clamped in the annular clamping groove, two silicon rubber rings are fixed on the inner wall of the silicon rubber sleeve, a restraint ring is fixed on the inner wall of the mounting sleeve, and the restraint ring is fixed on the inner wall of the mounting sleeve. The nipple body is provided with a mounting sleeve and a restraining ring, the bottom of the restraining ring extends towards the lower portion of the mounting sleeve in an inclined mode, and an annular opening is formed in the inner wall of the restraining ring. When the nipple body is mounted, firstly, the mounting sleeve is fixed to a breast pump, and then a butt joint pipe at the bottom of the nipple body is inserted into the mounting sleeve; during insertion, the outer surface of the silica gel ring is attached to the outer surface of the butt-joint pipe, so that a gap between the outer surface of the butt-joint pipe and the inner wall of the silica gel sleeve is sealed, leakage is prevented, meanwhile, when the butt-joint pipe is inserted, the rubber ring is clamped in the annular opening, the butt-joint pipe can be clamped, restrained and prevented from falling off, and meanwhile the sealing performance is enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of breast pumps, in particular to a nipple sealing structure for a breast pump. Background Art

[0002] A breast pump is a device used to hold milk, usually for babies. The breast pump itself does not contain a nipple, but only the bottle. However, manufacturers of baby breast pumps generally give a nipple with the bottle. In terms of raw materials, the baby bottles in the breast pump can be divided into: glass bottles, plastic bottles and silicone bottles. Among them, the materials of plastic bottles are generally PC, PP, PES, PPSU, and silicone.

[0003] At present, when using a breast pump, a nipple needs to be installed on it to facilitate the baby to suck milk. Most existing nipples are made of silicone. When installing, the silicone is directly snapped onto the breast pump. Since silicone has the ability of elastic deformation, when the silicone nipple is pulled, leakage is likely to occur at the joint.

[0004] Therefore, a sealing structure for a nipple of a breast pump is provided to solve the above-mentioned problem. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] The utility model aims to solve the problems existing in the prior art and proposes a nipple sealing structure for a breast pump.

[0007] (II) Technical solution

[0008] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a sealing structure for a nipple of a breast pump, comprising a mounting sleeve, an annular groove is provided between the inner walls of the mounting sleeve, a silicone sleeve is clamped inside the annular groove, and two silicone rings are fixed to the inner wall of the silicone sleeve;

[0009] A restraining ring is fixed on the inner wall of the installation sleeve, the bottom of the restraining ring extends obliquely toward the bottom of the installation sleeve, an annular opening is opened on the inner wall of the restraining ring, and the restraining ring is located below the silicone sleeve.

[0010] Preferably, a butt joint tube is provided between the inner walls of the mounting sleeve, a rubber ring is fixed to the outer surface of the butt joint tube, and the rubber ring is engaged in the inside of the annular opening.

[0011] Preferably, a gasket is fixed on the outer surface of the mounting sleeve near the top edge, and a nipple body is fixed on the top of the butt joint tube.

[0012] Preferably, the nipple body and the docking tube are interconnected, and the silicone ring is sealingly fitted to the outer surface of the docking tube.

[0013] Preferably, an annular limiting groove is provided on the inner bottom surface of the annular clamping groove, and the bottom of the silicone sleeve extends to the inside of the annular limiting groove.

[0014] Preferably, a wedge ring is fixed to the inner bottom surface of the annular groove near the inner edge of the mounting sleeve, and a wedge groove is formed at the bottom of the silicone sleeve.

[0015] Preferably, the wedge ring is engaged inside the wedge groove.

[0016] (III) Beneficial effects

[0017] 1. In the utility model, when installing the nipple body, first fix the installation sleeve on the breast pump, and then insert the docking tube at the bottom of the nipple body into the interior of the installation sleeve. When inserting, the outer surface of the silicone ring and the outer surface of the docking tube fit each other, so that the gap between the outer surface of the docking tube and the inner wall of the silicone sleeve is sealed to prevent leakage. At the same time, when the docking tube is inserted, the rubber ring is clamped inside the annular opening, so that the docking tube can be clamped and restrained to prevent falling off, and the sealing performance is enhanced.

[0018] 2. In the utility model, when it is necessary to clean it, it is only necessary to remove the silicone sleeve from the inside of the annular groove. In actual use, a wedge-shaped groove is opened at the bottom of the silicone sleeve, and a wedge-shaped ring is fixed to the inner bottom surface of the annular groove, so that the wedge-shaped ring is engaged with the inside of the wedge-shaped groove. Therefore, when the silicone sleeve is engaged with the inside of the annular groove, the silicone sleeve is pre-positioned and engaged, which is convenient for fixing the silicone sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the main three-dimensional structure of a nipple sealing structure for a breast pump proposed by the utility model;

[0020] Figure 2 The utility model provides a cross-sectional three-dimensional structural diagram of a nipple body in a nipple sealing structure for a breast pump;

[0021] Figure 3 The utility model provides a schematic cross-sectional three-dimensional structure diagram of a mounting sleeve in a sealing structure of a nipple for a breast pump;

[0022] Figure 4 For this utility model Figure 3 Magnified view at A in the middle.

[0023] In the figure:

[0024] 1. Installation sleeve; 2. Gasket; 3. Butt tube; 4. Rubber ring; 5. Nipple body; 6. Annular groove; 7. Silicone sleeve; 8. Silicone ring; 9. Restraint ring; 10. Annular mouth; 11. Annular limit groove; 12. Wedge groove; 13. Wedge ring. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] like Figure 1-4 As shown, a sealing structure for a nipple of a breast pump comprises a mounting sleeve 1, an annular groove 6 is formed between the inner walls of the mounting sleeve 1, a silicone sleeve 7 is engaged inside the annular groove 6, and two silicone rings 8 are fixed to the inner wall of the silicone sleeve 7;

[0027] A restraining ring 9 is fixed to the inner wall of the installation sleeve 1. The bottom of the restraining ring 9 extends obliquely downward from the installation sleeve 1. An annular opening 10 is formed on the inner wall of the restraining ring 9. The restraining ring 9 is located below the silicone sleeve 7.

[0028] When installing the nipple body 5, first fix the installation sleeve 1 on the breast pump, and then insert the docking tube 3 at the bottom of the nipple body 5 into the interior of the installation sleeve 1. When inserting, the outer surface of the silicone ring 8 and the outer surface of the docking tube 3 fit each other, so that the gap between the outer surface of the docking tube 3 and the inner wall of the silicone sleeve 7 is sealed to prevent leakage. At the same time, when the docking tube 3 is inserted, the rubber ring 4 is engaged with the inside of the annular opening 10, so that the docking tube 3 can be engaged and restrained to prevent it from falling off, while enhancing the sealing performance.

[0029] Furthermore, a butt joint tube 3 is provided between the inner walls of the mounting sleeve 1, a rubber ring 4 is fixed to the outer surface of the butt joint tube 3, and the rubber ring 4 is engaged in the inside of the annular opening 10. By engaging the rubber ring 4 in the inside of the annular opening 10, the sealing of the butt joint can be enhanced.

[0030] In order to prevent the mounting sleeve 1 from slipping when mounted on the breast pump, a gasket ring 2 is fixed to the outer surface of the mounting sleeve 1 near the top edge, and a nipple body 5 is fixed to the top of the butt tube 3.

[0031] like Figure 1-4 As shown, the nipple body 5 is connected to the docking tube 3, the silicone ring 8 is sealed and fitted with the outer surface of the docking tube 3, the inner bottom surface of the annular groove 6 is provided with an annular limiting groove 11, the bottom of the silicone sleeve 7 extends to the inside of the annular limiting groove 11, and a wedge ring 13 is fixed to the inner bottom surface of the annular groove 6 near the inner edge of the mounting sleeve 1, and a wedge groove 12 is provided at the bottom of the silicone sleeve 7, and the wedge ring 13 is engaged with the inside of the wedge groove 12.

[0032] When it is necessary to clean it, it is only necessary to remove the silicone sleeve 7 from the inside of the annular groove 6. In actual use, a wedge-shaped groove 12 is opened at the bottom of the silicone sleeve 7, and a wedge-shaped ring 13 is fixed to the inner bottom surface of the annular groove 6, so that the wedge-shaped ring 13 is engaged with the inside of the wedge-shaped groove 12, so that when the silicone sleeve 7 is engaged with the inside of the annular groove 6, the silicone sleeve 7 is pre-positioned and engaged, which is convenient for fixing the silicone sleeve 7.

[0033] Working principle: when installing the nipple body 5, first fix the installation sleeve 1 on the breast pump, and then insert the docking tube 3 at the bottom of the nipple body 5 into the interior of the installation sleeve 1. When inserting, the outer surface of the silicone ring 8 fits with the outer surface of the docking tube 3, so that the gap between the outer surface of the docking tube 3 and the inner wall of the silicone sleeve 7 is sealed to prevent leakage. At the same time, when the docking tube 3 is inserted, the rubber ring 4 is engaged with the inside of the annular opening 10, so that the docking tube 3 can be engaged and restrained to prevent it from falling off, and the sealing performance is enhanced. When it needs to be cleaned, it is only necessary to remove the silicone sleeve 7 from the inside of the annular groove 6. When actually in use, a wedge-shaped groove 12 is opened at the bottom of the silicone sleeve 7, and a wedge-shaped ring 13 is fixed on the inner bottom surface of the annular groove 6, so that the wedge-shaped ring 13 is engaged with the inside of the wedge-shaped groove 12, so that when the silicone sleeve 7 is engaged in the inside of the annular groove 6, the silicone sleeve 7 is pre-positioned and engaged, which is convenient for fixing the silicone sleeve 7.

[0034] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A nipple sealing structure for a breast pump, comprising a mounting sleeve (1), characterized in that: An annular groove (6) is provided between the inner walls of the installation sleeve (1), a silicone sleeve (7) is engaged inside the annular groove (6), and two silicone rings (8) are fixed to the inner wall of the silicone sleeve (7); A restraining ring (9) is fixed to the inner wall of the installation sleeve (1), the bottom of the restraining ring (9) extends obliquely toward the bottom of the installation sleeve (1), the inner wall of the restraining ring (9) is provided with an annular opening (10), and the restraining ring (9) is located below the silicone sleeve (7).

2. A nipple sealing structure for a breast pump according to claim 1, characterized in that: A butt joint pipe (3) is arranged between the inner walls of the installation sleeve (1), a rubber ring (4) is fixed to the outer surface of the butt joint pipe (3), and the rubber ring (4) is engaged inside the annular opening (10).

3. A nipple sealing structure for a breast pump according to claim 2, characterized in that: A gasket ring (2) is fixed on the outer surface of the installation sleeve (1) near the top edge, and a nipple body (5) is fixed on the top of the butt joint tube (3).

4. A nipple sealing structure for a breast pump according to claim 3, characterized in that: The nipple body (5) and the butt joint tube (3) are in communication with each other, and the silicone ring (8) is in sealing contact with the outer surface of the butt joint tube (3).

5. A nipple sealing structure for a breast pump according to claim 4, characterized in that: An annular limiting groove (11) is provided on the inner bottom surface of the annular clamping groove (6), and the bottom of the silicone sleeve (7) extends to the inside of the annular limiting groove (11).

6. A nipple sealing structure for a breast pump according to claim 5, characterized in that: A wedge-shaped ring (13) is fixed to the inner bottom surface of the annular groove (6) near the inner edge of the mounting sleeve (1), and a wedge-shaped groove (12) is provided at the bottom of the silicone sleeve (7).

7. A nipple sealing structure for a breast pump according to claim 6, characterized in that: The wedge-shaped ring (13) is engaged inside the wedge-shaped groove (12).

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