Self-sealing nozzle and cosmetic packaging bottle

Abstract

The utility model discloses a self-sealing type sprayer and a cosmetic packaging bottle, the self-sealing type sprayer comprises a head cap, a nozzle, a plug and an elastic element, the head cap comprises a liquid inlet hole, a liquid accumulation cavity and a liquid outlet hole which are connected in sequence, and the nozzle is connected with the liquid outlet hole. The self-sealing nozzle further comprises a plug which is connected with the elastic element. A plug cavity is formed in the liquid accumulation cavity, the elastic element is installed in the plug cavity, and the plug is matched with the nozzle to form sealing. According to the self-sealing spray head and the cosmetic packaging bottle, the self-sealing plug and the elastic element are separately arranged and are made of different materials, and the problem that the plug and the elastic element are made of the same material and cannot meet the respective function and quality requirements of two parts is avoided. When the head cap is not used, the nozzle and the plug are in an attached sealing state, so that contents in the head cap can be effectively protected from being in contact with air, and the contents are prevented from being oxidized and breeding bacteria.

Description

Technical Field

[0001] This utility model relates to the field of daily chemical product packaging technology, and in particular to a spray nozzle, a self-sealing spray nozzle, and a cosmetic packaging bottle. Background Technology

[0002] Cosmetic packaging often uses spray nozzles to pump out liquid contents. For example, in the case of lotion-type cosmetics, the pump head uses air pressure to force the lotion out, which is then discharged through the spray nozzle. Traditional spray nozzles lack a self-sealing function, causing liquid residue to remain inside the nozzle, resulting in waste and contamination. Currently, cosmetic packaging using self-sealing spray nozzles is relatively rare. Due to structural limitations, such products either have more components and a more complex structure, or they sacrifice aesthetic appeal.

[0003] For newly emerging self-sealing nozzle technologies, such as the Chinese utility model patent with publication number CN217658576U, the plug and elastic element are integrated and therefore made of the same material. However, during use, it was found that because the components (mainly the plug) need to be in contact with the contents, prolonged chemical reactions lead to instability in the size and function of the components. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a self-sealing nozzle and cosmetic packaging bottle, wherein the self-sealing nozzle and cosmetic packaging bottle components are not easily affected by chemical reactions, have a stable structure, and a long service life.

[0005] To achieve the above-mentioned objectives, this utility model adopts the following technical solution:

[0006] A self-sealing nozzle includes a cap and a nozzle. The cap includes a connected inlet and outlet port, and the nozzle is connected to the outlet port. The self-sealing nozzle also includes a plug and a resilient element connected together and installed within the outlet port. The plug cooperates with the nozzle to form a seal.

[0007] Furthermore, the plug and the elastic element are made of different materials.

[0008] Furthermore, the plug is made of one of the following materials: PP, PET, PE, PBT, POK, POM, PA6, PA66, PC, PCTA, PETG, PCTG, and Salin.

[0009] Another improvement is that the elastic element is made of one of the following materials: PP, PE, TPEE, TPO, TPAE, TPU, EVA, POK, POM, PA6 / PA66, IIR, CR, NBR, and EPR.

[0010] Furthermore, the elastic element includes an inner hole, and the plug includes a plug tail that is inserted into the inner hole of the elastic element.

[0011] Furthermore, the elastic element includes a bottom surface, the liquid outlet includes a bottom surface, and the bottom surface of the elastic element and the bottom surface of the liquid outlet are interference-fitted.

[0012] A cosmetic packaging bottle with the aforementioned self-sealing nozzle includes an outer bottle, a pump core installed inside the outer bottle, and the aforementioned self-sealing nozzle installed at the outlet of the pump core.

[0013] This utility model discloses a self-sealing nozzle and cosmetic packaging bottle. The self-sealing plug and elastic element are separately designed and made of different materials. For example, the plug is made of a material that is more corrosion-resistant, permeability-resistant, oil-resistant, friction-resistant, and has better stability, while the elastic element is made of a material with better elasticity and toughness. This avoids the situation where using the same material for both the plug and the elastic element would fail to meet the separate functional and quality requirements of the two components. When the nozzle cap is not pressed down, the plug and elastic element return to their original positions, ensuring a tight seal between the nozzle and the plug. This effectively protects the contents of the nozzle cap from contact with air, preventing oxidation and bacterial growth. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the liquid flow direction in a self-sealing nozzle according to one embodiment of the present invention;

[0015] Figure 2 This is an exploded view of the self-sealing nozzle structure in one embodiment of the present invention;

[0016] Figure 3 This is a cross-sectional view of the headgear in one embodiment of the present invention;

[0017] Figure 4 This is a cross-sectional view of the blockage in one embodiment of the present invention;

[0018] Figure 5 This is a schematic diagram of the elastic element structure in one embodiment of the present invention;

[0019] Figure 6 This is a schematic diagram of another elastic element structure in one embodiment of the present invention;

[0020] Figure 7 This is a schematic diagram of another elastic element structure in one embodiment of the present invention;

[0021] Figure 8 This is a schematic diagram of another elastic element structure in one embodiment of the present invention;

[0022] Figure 9This is a schematic diagram of the nozzle structure in one embodiment of the present invention;

[0023] Figure 10 This is a cross-sectional view of the nozzle in one embodiment of the present invention;

[0024] Figure 11 This is a cross-sectional view of a daily chemical product packaging bottle in one embodiment of the present invention. Detailed Implementation

[0025] The following detailed description, in conjunction with the accompanying drawings, provides a self-sealing spray nozzle and cosmetic packaging bottle according to this utility model. In the description of this utility model, it should be understood that the terms "left side," "right side," "upper part," "lower part," and "bottom," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Terms such as "first" and "second" do not indicate the importance of the components and therefore should not be construed as limitations on this utility model. The specific dimensions used in this embodiment are only for illustrating the technical solution and do not limit the scope of protection of this utility model.

[0026] like Figure 1 and 2 As shown, the self-sealing nozzle disclosed in this utility model includes a cap 3, a nozzle 1, a plug 2, and an elastic element 4. For example... Figure 3 As shown, the cap 3 includes an inlet hole 31, an outlet hole 32, and a bottom 321 of the outlet hole. A plug 2 and an elastic element 4 are installed inside the outlet hole 32, and the plug 2 and the elastic element 4 are connected. Figure 4 As shown, the plug 2 includes a plug top 21, a plug sealing surface 22, and a plug tail 23. (As...) Figure 5 As shown, the elastic element 4 includes an inner hole 41 and a bottom 42. The shape of the elastic element is not limited to... Figure 5 As shown, it can take many forms, such as Figures 6 to 8 As shown; the inner hole of the elastic element can be either a through hole or a blind hole.

[0027] The plug tail 23 is inserted into the inner hole 41 of the elastic element, so that the plug 2 and the elastic element 4 are connected. The bottom 42 of the elastic element and the bottom 321 of the liquid outlet are pressed together with an interference fit, so that the elastic element 4 will not easily detach from the bottom of the liquid outlet and move completely freely.

[0028] The plug 2 and the elastic element 4 can also be made of different materials. The plug 2 and the elastic element 4 are set independently, and each has a wide range of material choices. They can be made of the same material or different materials and the structure of the elastic element can be combined to better meet various functional requirements. For example, the blockage 2 can be made of materials such as PP (polypropylene), PE (polyethylene), POM (polyoxymethylene), POK (polyketone resin), PBT (polybutylene terephthalate), PET (polyethylene terephthalate), PETG (polyethylene terephthalate-1,4-cyclohexanediol ester), PCTG (amorphous copolyester), PCTA (cyclohexanediol and terephthalic acid), and PC (polycarbonate). The elastic element 4 can be made of materials such as PP (polypropylene), PE (polyethylene), POM (polyoxymethylene), POK (polyketone resin), TPE (polyethylene terephthalate), TPU (thermoplastic polyurethane elastomer), PA6 (polyamide 6), PA66 (polyamide 66), and EVA (ethylene-vinyl acetate copolymer).

[0029] like Figure 9 and 10 As shown, nozzle 1 includes a nozzle orifice 11 and a nozzle gap 12. The working process of the self-sealing nozzle of this utility model is as follows:

[0030] like Figure 1 As shown, when the cap 3 is pressed, due to internal pressure, the contents (such as liquid cosmetics) enter the cap 3 through the inlet hole 31. The contents then enter the outlet hole 32 of the cap 3 through the gap 12 on the side of the nozzle 1. The contents compress the sealing surface 22 of the middle section of the plug 2, causing the elastic element 4 to compress and move backward. At this time, the plug 2 separates from the nozzle hole 11 (the self-blocking part opens), and the contents are discharged from the gap, completing the discharge. When not in use, the cap 3 is not pressed down, and the plug 2 and the elastic element 4 return to their original positions (the elastic element resets under the action of rebound force). The sealing surface 21 of the plug head of the plug 2 fits against the sealing surface of the nozzle hole 11, and the plug 2 and the nozzle 1 are always in a sealed state, which can effectively protect the contents inside the cap from contact with air and prevent the contents from oxidation and bacterial growth.

[0031] like Figure 11 As shown, this utility model also discloses a cosmetic packaging bottle with the aforementioned self-sealing nozzle, including an outer bottle 10, a pump core assembly 9 installed inside the outer bottle 10, and a nozzle installed at the outlet of the pump core assembly 9. The nozzle is the aforementioned self-sealing nozzle. The self-sealing nozzle includes a nozzle 1, a plug 2, a cap 3, and an elastic element 4. A bottom cover 12 is installed at the bottom of the outer bottle 10, and a large piston 11 is installed inside the outer bottle 10 near the bottom cover 12. An outer cover 5 covers the upper part of the outer bottle 10, and a large ring 7 and a middle ring 6 are installed sequentially outside the pump core assembly 9. A gasket 8 is placed between the large ring 7 and the pump core assembly 9.

[0032] Based on the description of the preferred embodiments of the present invention, it should be clear that the present invention as defined by the appended claims is not limited to the specific details set forth in the above description, and many obvious changes to the present invention without departing from the spirit or scope of the present invention may also achieve the purpose of the present invention.

Claims

1. A self-sealing nozzle, comprising a cap and a nozzle, the cap including a connected inlet and an outlet, the nozzle being connected to the outlet, characterized in that, The self-sealing nozzle also includes a plug and an elastic element, which are connected and installed inside the liquid outlet hole. The plug cooperates with the nozzle to form a seal.

2. The self-sealing spout of claim 1, wherein, The plug and the elastic element are made of different materials.

3. The self-sealing spout of claim 1, wherein, The plug is made of one of the following materials: PP, PET, PE, PBT, POK, POM, PA6, PA66, PC, PCTA, PETG, and PCTG.

4. The self-sealing spout of claim 1, wherein, The elastic element is made of one of the following materials: PP, PE, TPEE, TPO, TPAE, TPU, EVA, POK, POM, PA6 / PA66, IIR, CR, NBR, and EPR.

5. The self-sealing spout of claim 1, wherein, The elastic element includes an elastic element and an inner hole, and the plug includes a plug tail that is inserted into the inner hole of the elastic element.

6. The self-sealing spout of claim 1, wherein, The elastic element includes a bottom surface, and the liquid outlet includes a bottom surface; the bottom surface of the elastic element and the bottom surface of the liquid outlet are interference-fitted.

7. A cosmetic product packaging bottle with the self-sealing spout according to any one of claims 1 to 6, characterized in that, It includes an outer bottle, a pump core is installed inside the outer bottle, and the self-sealing nozzle is installed at the outlet of the pump core.

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