Feeding bottle with PP wrapped by silica gel

Through the combination of LSR silicone and PP material, injection and adhesive wrapping technology and threaded connection are adopted, the production cost of the bottle is reduced, high safety is maintained, and the problem of high cost of existing bottles is solved.

CN223143817UActive Publication Date: 2025-07-25中山市立科硅胶制品有限公司
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Patent Information

Application Number
CN202421305700.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-07
Publication Date
2025-07-25
Estimated Expiration
2034-06-07

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    Figure CN223143817U_ABST
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Abstract

The utility model relates to a silica gel coated PP (polypropylene) feeding bottle, which is technically characterized by comprising a bottle body made of LSR silica gel and a nipple made of LSR silica gel, the bottle body is a hollow bottle body with an opening at the upper end, a connecting ring made of PP is arranged at the upper end of the bottle body, and the edge of the lower end of the connecting ring is embedded into the upper end of the bottle body through injection rubber coating to enable the connecting ring and the bottle body to be connected into a whole. An upper cover made of PP is arranged at the lower end of the nipple, the upper cover is an annular cover with openings in the upper end and the lower end, the upper end of the upper cover is embedded into the nipple through injection rubber coating so that the upper cover and the nipple can be connected into a whole, a positioning step is arranged in the upper cover, the lower end of the nipple is provided with an annular positioning edge extending into the nipple to be attached to the positioning step, and the upper cover is provided with internal threads. And the connecting ring is provided with an external thread in threaded connection with the upper cover. The utility model has a simple structure, and reduces the cost through the combination of PP and silica gel.
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Description

Technical Field

[0001] The utility model relates to a feeding bottle.

Background Art

[0002] Existing feeding bottles generally include a bottle body, a lid is provided on the bottle body, and a detachable nipple is provided on the lid. Currently, common feeding bottles generally have a bottle body made of all PPSU material, the lid is generally made of PP, and the nipple is made of liquid silicone (LSR). Although PP, PPSU, and liquid are all food safety grades, relatively speaking, silicone is the safest, followed by PPSU, and finally PP. However, in terms of price, silicone is the most expensive, followed by PPSU, and finally PP. Since silicone is the safest, silicone material is the most desired material to use and is the first choice of consumers. However, considering its cost, it also discourages consumers. If PP and silicone can be combined to reduce production costs, then the product will be more competitive.

Content of the Utility Model

[0003] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a feeding bottle with low production cost, which is made of silicone wrapped around PP.

[0004] To solve the above problems, the utility model adopts the following technical solutions:

[0005] A feeding bottle made of silicone wrapped around PP, characterized in that: it includes a bottle body made of LSR silicone and a nipple made of LSR silicone. The bottle body is a hollow bottle body with an open upper end. A connecting ring made of PP is provided at the upper end of the bottle body. The lower edge of the connecting ring is embedded into the upper end of the bottle body by injection overmolding, so that the connecting ring and the bottle body are connected into one body. A top cover made of PP is provided at the lower end of the nipple. The top cover is an annular cover with open upper and lower ends. The upper end of the top cover is embedded into the nipple by injection overmolding, so that the top cover and the nipple are connected into one body. A positioning step is provided inside the top cover. An annular positioning edge that extends into the nipple and abuts against the positioning step is provided at the lower end of the nipple. Internal threads are provided on the top cover, and external threads that are threadedly connected to the top cover are provided on the connecting ring.

[0006] For a feeding bottle made of silicone wrapped around PP as described above, characterized in that: an annular insertion end is provided at the upper end of the top cover. The diameter of the annular opening of the annular insertion end gradually decreases from bottom to top. An annular opening groove for inserting the annular insertion end is provided at the lower end of the nipple. The outer side edge of the annular opening groove abuts against the outer wall of the annular insertion end, and the inner side edge of the annular opening groove abuts against the inner wall of the annular insertion end. The positioning step is provided at the lower end of the inner wall of the annular insertion end, and the annular positioning edge is provided at the lower end of the inner side edge.

[0007] A silicone-coated PP baby bottle as described above, characterized in that: an adhesive is coated on the annular insertion end and bonded to the annular opening groove.

[0008] A silicone-coated PP baby bottle as described above, characterized in that: a plugging edge embedded in the bottle body is provided at the lower end of the connecting ring, and a caulking hole for filling LSR silicone during bottle body injection is provided on the plugging edge.

[0009] A silicone-coated PP baby bottle as described above, characterized in that: an adhesive is coated on the plugging edge and bonded to the bottle body.

[0010] A silicone-coated PP baby bottle as described above, characterized in that: after the connecting ring is threadedly connected to the upper cover, the connecting ring presses against the annular positioning edge.

[0011] The beneficial effects of the present invention are as follows: The nipple is an integrated nipple of LSR silicone and PP, and the bottle body is also an integrated body of LSR silicone and PP. In this way, the combination of LSR silicone and PP reduces the production cost. The connecting ring and the upper cover made of PP material are threadedly connected, which makes the production and installation of the baby bottle convenient. The main body mostly uses LSR silicone, which is highly safe and reduces the material cost; the inner side and the outer side of the lower end of the nipple are wrapped on the annular insertion end, and a positioning step is provided at the bottom of the inner side to be used for positioning and installation, so that the nipple and the upper cover are firmly connected; a caulking hole is provided on the connecting ring, so that LSR silicone can be filled into the caulking hole during bottle body injection molding, making the connection between the connecting ring and the bottle body firm.

Description of the Drawings

[0012] Figure 1 is a perspective view of the present invention;

[0013] Figure 2 is a cross-sectional view of the present invention;

[0014] Figure 3 is an exploded view of the present invention.

Detailed Embodiment

[0015] The present invention will be further described in detail below in conjunction with the drawings and the specific embodiments:

[0016] As Figures 1 to 3As shown in the figure, a baby bottle with a PP core wrapped in silicone includes a bottle body 1 made of LSR silicone and a nipple 2 made of LSR silicone. The bottle body 1 is a hollow cylindrical bottle body with an open upper end. A connecting ring 3 made of PP is provided at the upper end of the bottle body 1, and the connecting ring 3 can be formed by injection molding. The lower edge of the connecting ring 3 is embedded in the upper end of the bottle body 1 by injection overmolding to connect the connecting ring 3 and the bottle body 1 into one body. When injecting the bottle body 1, the connecting ring 3 is placed in the injection mold, and then LSR silicone is added to the injection mold to inject the edge of the connecting ring 3, so that the lower end of the connecting ring 3 is embedded in the bottle body 1, thereby enabling the lower end of the connecting ring 3 to be overmolded (with LSR silicone). A top cover 4 made of PP is provided at the lower end of the nipple 2. The top cover 4 is an annular cover with open upper and lower ends. The upper end of the top cover 4 is embedded in the nipple 2 by injection overmolding to connect the top cover 4 and the nipple 2 into one body. The top cover 4 is formed by injection molding. When injecting the overmolding (LSR silicone), the top cover 4 is placed in the cavity of the injection machine, and then LSR silicone is added to the injection mold to inject and form the nipple 2. Part of the nipple 2 will cover the edge of the top cover 4, enabling the edge of the top cover 4 to be overmolded. A positioning step 41 is provided inside the top cover 4, and an annular positioning edge 21 extending into the nipple 2 and abutting against the positioning step 41 is provided at the lower end of the nipple 2. When the nipple 2 is pulled upward, it is positioned by pressing the annular positioning edge 21 against the positioning step 41, and when pressed downward, it is positioned by the embedding edge. An internal thread is provided on the top cover 4, and an external thread threadedly connected to the top cover 4 is provided on the connecting ring 3. After the connecting ring 3 and the top cover 4 are threadedly connected, the connecting ring 3 presses against the annular positioning edge 21.

[0017] Specifically, an annular insertion end 42 is provided at the upper end of the top cover 4. The top cover 4 is in a circular ring shape. The diameter of the annular opening of the annular insertion end 42 gradually decreases from bottom to top, and the cross-section of the annular insertion end 42 is arc-shaped. An annular opening groove 22 for inserting the annular insertion end 42 is provided at the lower end of the nipple 2. The annular opening groove 22 has an open lower end. The outer side 23 of the annular opening groove 22 abuts against the outer wall of the annular insertion end 42, and the inner side 24 of the annular opening groove 22 abuts against the inner wall of the annular insertion end 42. The positioning step 41 is provided at the lower end of the inner wall of the annular insertion end 42, and the annular positioning edge 21 is provided at the lower end of the inner side 24. The outer side 23 and the inner side 24 clamp the annular insertion end 42, thereby enabling the annular insertion end 42 to be overmolded. For firm connection, an adhesive is coated on the annular insertion end 42 and bonded to the annular opening groove 22. The adhesive can be RTV silicone glue. Before injecting the LSR silicone, the adhesive is first coated on the surface of the annular insertion end 42, so that the top cover 4 and the nipple 2 are firmly connected.

[0018] In order to firmly connect the connecting ring 3 to the bottle body 1, a plugging edge 31 that is embedded into the bottle body 1 is provided at the lower end of the connecting ring 3. A glue filling hole 32 for filling LSR silicone during the injection of the bottle body 1 is provided on the plugging edge 31. In this way, when the glue filling hole 32 is encapsulated, it can be filled with LSR silicone, making the connection between the connecting ring 3 and the bottle body 1 firm. The glue filling hole 32 can be shaped. The LSR silicone is transparent, so that the shape of the glue filling hole 32 can be seen, making the whole feeding bottle more beautiful. An adhesive is coated on the surface of the plugging edge 31 to bond with the bottle body 1. The adhesive can be RTV silicone glue. Before injecting the LSR silicone, the adhesive is first coated on the surface of the plugging edge 31, so that the bottle body 1 and the connecting ring 3 are firmly connected.

Claims

1. A silicone-coated PP baby bottle, characterized in that: It includes a bottle body (1) made of LSR silicone and a nipple (2) made of LSR silicone. The bottle body (1) is a hollow bottle body with an open upper end. A connecting ring (3) made of PP is provided at the upper end of the bottle body (1). The lower edge of the connecting ring (3) is embedded into the upper end of the bottle body (1) by injection overmolding, so that the connecting ring (3) and the bottle body (1) are connected as a whole. A top cover (4) made of PP is provided at the lower end of the nipple (2). The top cover (4) is an annular cover with open upper and lower ends. The upper end of the top cover (4) is embedded into the nipple (2) by injection overmolding, so that the top cover (4) and the nipple (2) are connected as a whole. A positioning step (41) is provided inside the top cover (4). An annular positioning edge (21) that extends into the nipple (2) and abuts against the positioning step (41) is provided at the lower end of the nipple (2). Internal threads are provided on the top cover (4), and external threads that are threadedly connected to the top cover (4) are provided on the connecting ring (3).

2. The silicone-coated PP feeding bottle according to claim 1, wherein: An annular insertion end (42) is provided at the upper end of the top cover (4). The diameter of the annular opening of the annular insertion end (42) gradually decreases from bottom to top. An annular opening groove (22) for inserting the annular insertion end (42) is provided at the lower end of the nipple (2). The outer side edge (23) of the annular opening groove (22) abuts against the outer wall of the annular insertion end (42), and the inner side edge (24) of the annular opening groove (22) abuts against the inner wall of the annular insertion end (42). The positioning step (41) is provided at the lower end of the inner wall of the annular insertion end (42), and the annular positioning edge (21) is provided at the lower end of the inner side edge (24).

3. The silicone-coated PP feeding bottle according to claim 2, characterized in that: An adhesive is coated on the annular insertion end (42) and bonded to the annular opening groove (22).

4. A silicone - wrapped PP baby bottle according to claim 1, characterized in that: A plug-in edge (31) that is embedded into the bottle body (1) is provided at the lower end of the connecting ring (3). A filling hole (32) for filling LSR silicone during the injection of the bottle body (1) is provided on the plug-in edge (31).

5. The silicone-coated PP feeding bottle according to claim 4, wherein: An adhesive is coated on the plug-in edge (31) and bonded to the bottle body (1).

6. The silicone-coated PP feeding bottle according to claim 1, characterized in that: After the connecting ring (3) and the top cover (4) are threadedly connected, the connecting ring (3) presses against the annular positioning edge (21).