CN114287729A - Self-sealing type spray head and daily chemical product packaging bottle - Google Patents

Abstract

The invention discloses a self-sealing sprayer and a daily chemical product packaging bottle. The head cap comprises a liquid inlet hole, a liquid accumulation cavity and a liquid outlet hole which are sequentially connected, and a blocking cavity is arranged in the liquid accumulation cavity. The nozzle is connected with the liquid outlet hole, the rear section of the elastic plug is installed in the plug cavity, and the front section of the elastic plug is matched with the nozzle to form sealing. The elastic plug further comprises a plug pressure surface, and the plug pressure surface is in contact with liquid in the liquid accumulation cavity. The self-sealing type sprayer and the daily chemical product packaging bottle disclosed by the invention have self-sealing structures, and the elastic plug is attached and sealed with the nozzle in a state that the sprayer is not pressed, so that the contents can be effectively protected from contacting air, and the contents are prevented from being oxidized or breeding bacteria. The residue of the content in the nozzle can be avoided, and the pollution is avoided. The self-sealing spray head can be widely applied to the packaging of liquid daily chemical articles, and can also be applied to other packages for containing liquid, such as cleaning articles like small sprayers.

Description

A self-sealing nozzle and packaging bottle for daily chemical products

technical field

The invention relates to the technical field of daily chemical product packaging, in particular to a spray head, a self-sealing spray head and a daily chemical product packaging bottle.

Background technique

In the packaging of daily chemical products, a nozzle is often used to pump out the liquid contents in the packaging. For example, for cosmetics in the form of emulsion, the emulsion is squeezed out through the pump head using the principle of air pressure, and the emulsion is discharged through the pump nozzle. The traditional nozzle does not have the function of self-sealing, which leads to the residual liquid in the nozzle, causing waste and pollution.

In recent years, some nozzles with self-sealing function have appeared, such as the Chinese invention patent with publication number CN109747964A, which describes a self-sealing nozzle with anti-ultraviolet and high rigidity and its preparation method. The patent discloses a nozzle and container with self-sealing function. However, there are still relatively few cosmetic packaging using self-sealing nozzles at present. Due to structural limitations, this type of product either has many components and a complex structure, or sacrifices the aesthetic appearance.

SUMMARY OF THE INVENTION

The technical problem to be solved by the present invention is to provide a self-sealing spray head and a packaging bottle for daily chemicals, which have simple structures, hardly affect the appearance, and achieve good self-sealing performance.

In order to realize the above-mentioned purpose of the invention, the present invention adopts the following technical solutions:

A self-sealing spray head includes a head cap, a nozzle and an elastic plug. The head cap includes a liquid inlet hole, a liquid accumulation cavity and a liquid outlet hole which are connected in sequence, and a blocking cavity is arranged in the liquid accumulation cavity. The nozzle is connected with the liquid outlet hole, the rear section of the elastic blocking is installed in the blocking cavity, and the front section cooperates with the nozzle to form a seal. The elastic blocking further includes a blocking pressure surface, and the blocking pressure surface is in contact with the liquid in the fluid accumulation chamber.

Further, the elastic blocking further includes a pressure step, the pressure step has an upper bottom surface and a lower bottom surface in the axial direction, the upper bottom surface of the pressure step is the pressure surface, and the lower bottom surface of the pressure step is located in the blocking cavity.

Furthermore, the pressure surface is provided with grooves.

Further, the end surface of the rear section of the elastic blocking is in an interference fit with the bottom surface of the blocking cavity.

Further, the elastic blocking front section includes a blocking sealing surface, the nozzle includes a nozzle liquid outlet channel and a nozzle sealing surface, the blocking sealing surface cooperates with the nozzle sealing surface to form a seal, and liquid cannot be discharged from the nozzle liquid outlet channel.

Furthermore, the nozzle sealing surface is close to the outlet of the nozzle liquid outlet, the elastic plug extends into the nozzle liquid outlet, and a gap is left between the side surface of the elastic block and the nozzle liquid outlet.

Another improvement is that the nozzle sealing surface is close to the inlet of the nozzle liquid outlet.

Further, the elastic blocking rear section is an elastic structure.

Further, the elastic structure is S-shaped or 8-shaped, circular, O-shaped or prismatic.

A packaging bottle for daily chemical products, comprising an outer bottle, a pump core is installed in the outer bottle, a spray head is installed at the outlet of the pump core, and the spray head is the self-sealing spray head of any one of claims 1 to 9.

The invention discloses a self-sealing sprinkler head and a packaging bottle for daily chemical products, which have a self-sealing structure. When the sprinkler head is not pressed, the elastic plug is fitted and sealed with the nozzle, which can effectively protect the contents from contacting the air and prevent the contents from being oxidized or damaged. Bacteria breed. It can also prevent the contents from remaining in the nozzle and causing pollution. The self-sealing nozzle disclosed in the present invention can be widely used in the packaging of liquid daily chemical products, and can also be applied in other packagings containing liquids, such as the packaging of cleaning products such as small sprayers.

Description of drawings

1 is a schematic diagram of the flow direction of liquid in a self-sealing nozzle in an embodiment of the present invention;

2 is a cross-sectional view of a headgear in an embodiment of the present invention;

3 is a schematic diagram of an elastic blocking structure in an embodiment of the present invention;

4 is a schematic diagram of an S-shaped elastic structure in an embodiment of the present invention;

5 is a schematic diagram of a figure-8 elastic structure in an embodiment of the present invention;

6 is a schematic diagram of a nozzle structure in an embodiment of the present invention;

7 is a sectional view of a nozzle in an embodiment of the present invention;

8 is a cross-sectional view of a packaging bottle for daily chemical products in an embodiment of the present invention.

Detailed ways

A self-sealing nozzle and a packaging bottle for daily chemical products proposed by the present invention will be described in detail below with reference to the accompanying drawings. In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "left", "right", "upper", "lower", "bottom", etc. are based on the orientation shown in the drawings or The positional relationship is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, "first", "second", etc. The importance of the components is not indicated, and therefore should not be construed as limiting the present invention. The specific dimensions used in this embodiment are only for illustrating the technical solution, and do not limit the protection scope of the present invention.

As shown in FIG. 1 , a self-sealing spray head disclosed in the present invention includes a head cap 3 , a nozzle 1 and an elastic plug 2 . As shown in FIG. 2 , the head cap 3 includes a liquid inlet hole 301 , a liquid accumulation cavity 304 and a liquid outlet hole 305 which are connected in sequence, and a blocking cavity 303 is arranged in the liquid accumulation cavity 304 . In this embodiment, the tail of the blocking cavity 303 is connected to the inner wall of the head cap, and there is a gap between the side surface and the wall of the liquid accumulation cavity 304 , and the liquid can enter the liquid accumulation cavity 304 after entering from the liquid inlet hole 301 . The blocking cavity 303 can also be fixed in the liquid accumulation cavity through other parts, as long as it does not prevent the liquid from entering the liquid accumulation cavity 304 . The shape of the liquid accumulation cavity 304 is generally cylindrical, and the liquid can flow more smoothly. It is also possible to design the external shape of the fluid accumulation chamber 304 to other shapes.

As shown in FIG. 3 , the elastic plug 2 further includes a pressure step 203 , the pressure step 203 has an upper bottom surface and a lower bottom surface in the axial direction, the upper bottom surface of the pressure step is the plugging pressure surface 204 , and the lower bottom surface 202 of the pressure step is located in the plugging cavity 303 . The blocking pressure surface 204 contacts the liquid in the liquid accumulation chamber 304 in various ways, such as leaving a gap between the blocking pressure surface 204 and the nozzle 1, the blocking pressure surface 204 having an area larger than the end face of the nozzle 1, and so on. The pressure step 203 can be arranged at any suitable position on the elastic plug 2, such as an intermediate position. If the bottom surface 202 of the pressure step is located on the left side of the opening of the plugging chamber 303, the pressure step 203 is under liquid pressure on both sides, and the elastic plug 2 may not be able to compress to the right as expected. Preferably, a blocking sealing cavity 307 is provided at the opening of the blocking cavity 303 , the side surface of the pressure step 203 is in an interference fit with the inner wall of the blocking sealing cavity 307 , and the blocking pressure surface 204 is flush with the opening end surface of the blocking cavity 303 .

In order to increase the contact area between the blocking pressure surface 204 and the liquid in the liquid accumulation chamber 304, the blocking pressure surface 204 is provided with a groove, which is generally an annular groove. In order to make the installation stability better, the end surface of the rear section 201 of the elastic blocking is in an interference fit with the bottom surface 302 of the blocking cavity.

As shown in Figures 1, 2, 3 and 6, the nozzle 1 is connected to the liquid outlet hole 305. Preferably, the nozzle buckle 102 on the nozzle 1 is buckled and sealed with the head cap buckle 306, and the sealing step 103 on the nozzle 1 is sealed with The inner wall of the fluid accumulation chamber 304 is in an interference fit. The rear section 201 of the elastic plug 2 is installed in the plug cavity 303, and the front section 205 of the elastic plug 2 cooperates with the nozzle 1 to form a closure. As shown in FIG. 3 , the forward section 205 of the elastic plug 2 includes a plug sealing surface 206 . As shown in FIGS. 6 and 7 , the nozzle 1 includes a nozzle outlet channel 104 and a nozzle sealing surface 101 . The blocking sealing surface 206 cooperates with the nozzle sealing surface 101 to form a seal, and the liquid cannot be discharged from the nozzle liquid outlet 104 . The clogging sealing surface 206 and the nozzle sealing surface 101 may preferably be inclined surfaces, the contact area is large, and the sealing effect is better. The nozzle sealing surface 101 may be located at the outlet or the inlet of the nozzle liquid outlet 104 , or may be located in the nozzle liquid outlet 104 . If the nozzle sealing surface 101 is close to the outlet of the nozzle liquid outlet 104 , the elastic plug 2 extends into the nozzle liquid outlet 104 , leaving a gap between the side of the elastic plug 2 and the nozzle liquid outlet 104 . If the nozzle sealing surface 101 is located at the inlet of the nozzle liquid outlet 104, the elastic plug 2 does not need to extend into the nozzle liquid outlet 104. When the elastic plug 2 is separated from the nozzle 1, the liquid directly enters the nozzle from the liquid outlet hole 305, which is more suitable for Nozzle with high liquid output.

In the present invention, the elastic plug 2 may be made of elastic material as a whole, or the front section 205 may be made of elastic material, and the rear section 201 may be an elastic structure. Preferably, as shown in FIGS. 4 and 5 , the elastic structure in this embodiment is S-shaped or 8-shaped. Of course, elastic structures such as common springs are also included in the scope of the elastic structures in this embodiment, such as circular, O-shaped, prismatic, and the like.

Take Fig. 1 as an example to illustrate the working principle of the self-sealing nozzle disclosed in the present invention:

When the head cap is pressed, due to the pressure in the packaging bottle, the content (such as lotion) enters the liquid accumulation chamber from the liquid inlet hole, the content applies pressure to the blocking sealing surface, the elastic blocking is compressed to the right, and the blocking sealing surface is separated from the nozzle sealing surface. The contents flow out of the gap between the plug sealing surface and the nozzle sealing surface. When the head cap is loosened, the elastic block will return to the right under the elastic force of the elastic structure, the blocking sealing surface will fit with the nozzle sealing surface, and the nozzle outlet will be sealed, that is, the nozzle is in a self-sealing state. When the nozzle is not in use, the nozzle is in a self-sealing state.

The invention also discloses a daily chemical product packaging bottle, as shown in FIG. 8 , comprising an outer bottle 9, a pump core 8 is installed in the outer bottle 9, and a spray head is installed at the outlet of the pump core 8, and the spray head is the above-mentioned self-sealing spray head. The self-sealing spray head includes a nozzle 1 , an elastic plug 2 and a head cap 3 . A bottom cover 11 is installed at the bottom of the outer bottle 9 , a large piston is installed inside the outer bottle 9 near the bottom cover 11 , and the outer cover 4 covers the upper part of the outer bottle 9 . Install the large ring 6 and the middle ring 5 on the outside of the pump core 8 in sequence, and place the gasket 7 between the large ring 6 and the pump core 8 .

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 foregoing specification, and that there are many variations of the present invention that do not depart from the spirit or scope of the present invention. Obvious modifications are also possible to achieve the objects of the present invention.

Claims (10)

1. A self-sealing spray head, comprising a head cap and a nozzle; the head cap comprises a liquid inlet hole, a liquid accumulation chamber and a liquid outlet hole that are connected in turn; it is characterized in that, the self-sealing spray head also includes elastic blocking; the described A blocking cavity is arranged in the liquid accumulation cavity, the nozzle is connected with the liquid outlet, the rear section of the elastic blocking is installed in the blocking cavity, and the front section cooperates with the nozzle to form a closure; the elastic blocking also includes a blocking pressure surface, and the blocking pressure The surface is in contact with the fluid in the effusion chamber. 2 . The self-sealing spray head according to claim 1 , wherein the elastic plug further comprises a pressure step, the pressure step has an upper bottom surface and a lower bottom surface in the axial direction, and the upper bottom surface of the pressure step is the pressure step. 3 . The bottom surface of the pressure step is located in the blocking cavity. 3 . The self-sealing spray head according to claim 2 , wherein a groove is formed on the pressure surface. 4 . 4 . The self-sealing spray head according to claim 1 , wherein the end surface of the rear section of the elastic blocking is in an interference fit with the bottom surface of the blocking cavity. 5 . 5 . The self-sealing spray head according to claim 1 , wherein the elastic blocking front section comprises a blocking sealing surface, the nozzle comprises a nozzle liquid outlet channel and a nozzle sealing surface, and the blocking sealing surface cooperates with the nozzle sealing surface. 6 . A closure is formed, and the liquid cannot be discharged from the outlet channel of the nozzle. 6 . The self-sealing nozzle according to claim 5 , wherein the nozzle sealing surface is close to the outlet of the nozzle liquid outlet, the elastic plug extends into the nozzle liquid outlet, and the side of the elastic plug is connected to the nozzle outlet. 7 . There are gaps between the fluid passages. 7 . The self-sealing nozzle according to claim 5 , wherein the nozzle sealing surface is close to the inlet of the nozzle liquid outlet. 8 . 8 . The self-sealing spray head according to claim 1 , wherein the rear section of the elastic blocking is an elastic structure. 9 . 9 . The self-sealing spray head according to claim 8 , wherein the elastic structure is an S shape, a figure 8 shape, a circle shape, an O shape or a prismatic shape. 10 . 10. A packaging bottle for daily chemical products, comprising an outer bottle, a pump core is installed in the outer bottle, and a spray head is installed at the outlet of the pump core; it is characterized in that, the spray head is described in any one of claims 1 to 9 of self-sealing sprinklers.

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