Packaging bottle with improved sealing performance

Abstract

The packaging bottle comprises an outer bottle body, an inner bottle body, a shoulder sleeve, a pump base and a vacuum pump, the inner bottle body is arranged in the outer bottle body, the top of the outer bottle body is connected with the bottom of the shoulder sleeve, the shoulder sleeve surrounds the pump base and is connected with the pump base in a clamped mode, a hole column for installing the vacuum pump is arranged in the center of the pump base, and the vacuum pump is arranged in the hole column. The pump seat comprises an annular wall and a transition portion extending between the annular wall and the bore log, a sealing ring is installed at the position, close to the annular wall, of the transition portion, and the inner bottle is in threaded connection with the inner side face of the annular wall and abuts against the sealing ring to deform. According to the packaging bottle capable of improving the sealing performance, the sealing ring is arranged, the inner bottle is in threaded connection with the inner side face of the annular wall of the pump base and abuts against the sealing ring to deform, the deformed sealing ring can be tightly attached to the inner bottle to fill a small gap, and compared with the prior art, the overall sealing effect is better.

Description

Technical Field

[0001] The present application relates to the field of cosmetic packaging, and in particular to a packaging bottle with improved sealing performance. Background Art

[0002] Existing cosmetic packaging bottles generally include a bottle body and a pump head, wherein the bottle body is used to contain liquid cream cosmetics, and the cosmetics flow out of the container by pressing the pump head. For example, the document with publication number CN201539388U discloses a vacuum pump and a vacuum cosmetic container using the vacuum pump, wherein the vacuum cosmetic container includes a bottle body, a sealing sleeve and a pressing nozzle, wherein an isolation piston is provided in the bottle body, and the isolation piston separates the bottle body into a containing chamber and a gas chamber, and the sealing sleeve is arranged on the upper end of the bottle body and has a hole in the middle that is connected to the containing chamber.

[0003] Although the above-mentioned sealing sleeve can cooperate with the bottle body to seal, the overall sealing performance is poor and needs to be further improved. Utility Model Content

[0004] In order to solve the above problems, the utility model provides a packaging bottle with improved sealing performance, including an outer bottle, an inner bottle, a shoulder sleeve, a pump seat and a vacuum pump, the inner bottle is placed in the outer bottle, the top of the outer bottle is connected to the bottom of the shoulder sleeve, the shoulder sleeve surrounds the pump seat and is clamped with the pump seat, a hole column for installing the vacuum pump is arranged at the center of the pump seat, the pump seat includes an annular wall and a transition portion extending between the annular wall and the hole column, a sealing ring is installed at a position of the transition portion adjacent to the annular wall, the inner bottle is threadedly connected to the inner side surface of the annular wall, and presses the sealing ring to deform.

[0005] Several optional methods are also provided below, but they are not intended to be additional limitations on the above-mentioned overall solution, but are merely further supplements or preferences. Under the premise that there are no technical or logical contradictions, each optional method can be combined with the above-mentioned overall solution separately, and multiple optional methods can also be combined.

[0006] Optionally, the transition portion is provided with an annular groove for mounting the sealing ring.

[0007] Optionally, the sealing ring has a wider base and a narrower extension portion, and a gap is provided between the extension portion and the annular wall to allow the top of the inner bottle to extend therein.

[0008] Optionally, a piston is provided in the inner bottle.

[0009] Optionally, the bottom end of the hole column has a protrusion extending into the inner bottle.

[0010] Optionally, the piston has a sunken area that avoids the protrusion.

[0011] Optionally, a pressing cap is included which is gap-matched with the annular wall, and the pressing cap has a liquid outlet hole aligned with the vacuum pump.

[0012] Optionally, there is an anti-drop structure between the shoulder sleeve and the pressing cap.

[0013] Optionally, the pressing cap has a liquid conducting channel connected to the vacuum pump.

[0014] Optionally, the outer bottle and the inner side surface of the shoulder sleeve are snap-fitted to each other.

[0015] The packaging bottle for improving the sealing performance of the present application is provided with a sealing ring, the inner bottle is threadedly connected to the inner side surface of the annular wall of the pump seat and presses against the sealing ring to deform, and the deformed sealing ring can fit tightly with the inner bottle to fill the tiny gap. Compared with the prior art, the overall sealing effect is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the structure of a packaging bottle according to an embodiment of the present application;

[0017] Figure 2 for Figure 1 Enlarged view of part A in the middle;

[0018] Figure 3 It is a schematic diagram of the structure of the pump seat and the sealing ring;

[0019] Figure 4 It is a structural schematic diagram of the sealing ring;

[0020] Figure 5 is a schematic diagram of the structure of a packaging bottle in one embodiment;

[0021] Figure 6a It is a schematic diagram of the structure of the shoulder cover;

[0022] Figure 6b It is a schematic diagram of the structure of the shoulder cover from another perspective;

[0023] Figure 7 It is a schematic diagram of the structure of the outer bottle.

[0024] The reference numerals in the figures are described as follows:

[0025] 110, outer bottle; 111, clamping block; 112, positioning groove; 120, shoulder sleeve; 123, second clamping groove; 124, notch; 125, protrusion; 128, inner flange; 130, inner bottle; 131, piston; 132, sinking area; 133, accommodating chamber; 134, gas chamber;

[0026] 200, vacuum pump; 210, piston; 220, pump body;

[0027] 300, pump seat; 301, annular wall; 305, transition part; 306, annular groove; 307, limiting ring; 311, hole column; 312, raised part; 321, sealing ring; 322, base; 323, extension part; 324, limiting groove; 400, pressing cap; 410, liquid outlet; 411, liquid guide channel; 412, sealing piece; 413, outer flange. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0029] It should be noted that when a component is referred to as being "connected" to another component, it may be directly connected to the other component or there may be a central component. When a component is referred to as being "disposed on" another component, it may be directly disposed on the other component or there may be a central component at the same time.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0031] In this application, the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number or order of the indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0032] In this application, the terms "comprises" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a system, product or device comprising a series of units is not necessarily limited to those units explicitly listed, but may include other units not explicitly listed or inherent to these products or devices.

[0033] See also Figure 1 to Figure 7 An embodiment of the present application provides a packaging bottle with improved sealing performance, including an outer bottle 110, an inner bottle 130, a shoulder sleeve 120, a pump seat 300 and a vacuum pump 200.

[0034] The inner bottle 130 is used to contain liquid cream cosmetics. The inner bottle 130 is placed in the outer bottle 110. The top of the outer bottle 110 is connected to the bottom of the shoulder sleeve 120. The shoulder sleeve 120 surrounds the pump seat 300 and is clamped with the pump seat 300. The center of the pump seat 300 is provided with a hole column 311 for installing the vacuum pump 200.

[0035] When it is needed, the cosmetics can be pumped out by simply pressing the vacuum pump 200 , wherein the vacuum pump 200 can adopt the existing technology, which will not be described in detail in this embodiment.

[0036] The sealing performance of existing packaging bottles is poor. In order to solve this problem, in the packaging bottle of the present application, the pump seat 300 includes an annular wall 301 and a transition portion 305 extending between the annular wall 301 and the hole column 311. A sealing ring 321 is installed at a position of the transition portion 305 adjacent to the annular wall 301. The inner bottle 130 is threadedly connected to the inner side surface of the annular wall 301 and presses against the sealing ring 321 to deform.

[0037] The packaging bottle of the present application is provided with a sealing ring 321, which threadably connects the inner bottle 130 with the inner side surface of the annular wall 301 of the pump seat 300 and presses the sealing ring 321 to deform. The deformed sealing ring 321 can fit tightly with the inner bottle 130 (to fill a small gap), thereby improving the sealing effect of the inner bottle 130 compared to the prior art.

[0038] To facilitate installation of sealing ring 321, see Figure 2 and Figure 4 , the transition portion 305 is provided with an annular groove 306 for installing the sealing ring 321. Specifically, the annular groove 306 is formed by the transition portion 305 protruding upward. Further, the sealing ring 321 has a wider base 322 and a narrower extension portion 323. There is a gap between the extension portion 323 and the annular wall 301 to allow the top of the inner bottle 130 to extend into. When the top of the inner bottle 130 extends into the gap, the base 322 and the extension portion 323 are squeezed at the same time, so that the sealing ring 321 can fit tightly against the inner bottle 130 and the transition portion 305, and has a better sealing effect. Of course, in order to prevent the sealing ring 321 from falling off from the transition portion 305, an axial limiting mechanism is provided between the annular groove 306 and the sealing ring 321. For example, refer to Figure 2 A limiting ring 307 is disposed on the side wall of the annular groove 306, and correspondingly, a limiting groove 324 matching the limiting ring 307 is disposed on the sealing ring 321. Further, the surface of the sealing ring 321 (extension portion 323) is flush with the lower surface of the transition portion 305.

[0039] See also Figure 1 and Figure 3, a piston 131 is provided in the inner bottle 130, and the piston 131 divides the inner bottle 130 into a receiving chamber 133 (for placing cosmetics) and a gas chamber 134. As the cosmetics are used, the piston 131 rises continuously (the volume of the receiving chamber 133 decreases), and the bottom end of the hole column 311 of the present application has a protrusion 312 extending into the inner bottle 130 (specifically, the receiving chamber 133). In order to make full use of the cosmetics in the receiving chamber 133, the piston 131 has a sinking area 132 to avoid the protrusion 312, wherein the sinking area 132 is adapted to the shape of the protrusion 312, so that the piston 131 can be completely attached to the lower surface of the transition part 305, and at this time, the cosmetics can be completely pumped out for use, thereby improving the utilization rate.

[0040] Taking environmental protection into consideration, the packaging bottle involved in this embodiment is a packaging bottle with a replaceable inner bottle 130. When the inner bottle 130 is replaced, the sealing ring 321 also has the function of preventing the cosmetics from spilling out.

[0041] See also Figure 1 to Figure 5 The packaging bottle of the present application also includes a pressing cap 400 that is in gap fit with the annular wall 301 (in order to reset the pressing cap 400, a reset spring is also provided in the packaging bottle of the present application, which is not shown in the figure). The pressing cap 400 can cooperate with the shoulder sleeve 120 to cover the pump seat 300, making the whole more beautiful. In order to smoothly pump out the cosmetics, the pressing cap 400 has a liquid outlet 410 aligned with the vacuum pump 200. Of course, considering the problem of buffering the discharge and sealing the liquid outlet 410, a sealing sheet 412 is also provided in the liquid outlet 410.

[0042] In one embodiment, there is an anti-drop structure between the shoulder cover 120 and the pressing cap 400. Figure 1 , Figure 6a and Figure 6b The top of the shoulder sleeve 120 has an inner flange 128, and the bottom of the pressing cap 400 has an outer flange 413. The outer diameter of the outer flange 413 is larger than the inner diameter of the inner flange 128. When the pressing cap 400 is reset under the action of the reset spring, the anti-detachment structure is used to limit the pressing cap 400 from detaching from the shoulder sleeve 120.

[0043] Furthermore, the pressing cap 400 has a liquid conducting channel 411 (the top of the liquid conducting channel 411 is the liquid outlet 410) connected to the vacuum pump 200. The vacuum pump 200 includes a piston 210 and a pump body 220. The piston 210 is sleeved on the outer periphery of the liquid conducting channel 411 and is linked to the pressing cap 400. When it is needed, the pressing cap 400 is pressed down, and the cosmetics in the inner bottle 130 are pumped out from the liquid outlet 410 through the liquid conducting channel 411.

[0044] In one embodiment, the inner side of the outer bottle 110 and the shoulder sleeve 120 are snap-fitted. Figure 6a to Figure 7, one of the shoulder sleeve 120 and the outer bottle 110 is provided with a block 111, and the other is provided with a second slot 123 arranged along the circumference and cooperating with the block 111 and a notch 124 allowing the block 111 to enter the second slot 123, and the two cooperate to achieve axial positioning. Preferably, in this embodiment, the second slot 123 is provided on the inner wall of the shoulder sleeve 120, and the block 111 is provided on the outer periphery of the outer bottle 110. After the two cooperate, the top of the outer bottle 110 is hidden in the shoulder sleeve 120, so that the overall appearance is more beautiful. In this embodiment, the number of the second slot 123 and the block 111 is multiple, and they are evenly distributed along the circumference.

[0045] In order to achieve circumferential limitation of the two, a positioning mechanism for limiting the relative rotation of the shoulder sleeve 120 and the outer bottle 110 is provided between the second slot 123 and the block 111. Specifically, the positioning mechanism includes a protrusion 125 provided in the second slot 123 and a positioning groove 112 provided on the block 111.

[0046] When the shoulder sleeve 120 is assembled with the outer bottle 110, it is only necessary to insert the block 111 on the outer bottle 110 into the notch 124 of the shoulder sleeve 120, and then rotate the block 111 in the direction of the second slot 123 until the protrusion 125 is engaged with the positioning groove 112, and the assembly of the two is completed.

[0047] The technical features of the above-mentioned embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification. When the technical features in different embodiments are embodied in the same figure, it can be regarded that the figure also discloses the combination examples of the various embodiments involved.

[0048] The above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent application. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application.

Claims

1. A packaging bottle with improved sealing performance, comprising an outer bottle, an inner bottle, a shoulder sleeve, a pump seat and a vacuum pump, wherein the inner bottle is placed in the outer bottle, the top of the outer bottle is connected to the bottom of the shoulder sleeve, the shoulder sleeve surrounds the pump seat and is clamped with the pump seat, and a hole column for installing the vacuum pump is arranged at the center of the pump seat, characterized in that: The pump seat includes an annular wall and a transition portion extending between the annular wall and the hole column, a sealing ring is installed on the transition portion near the annular wall, and the inner bottle is threadedly connected to the inner side surface of the annular wall and presses against the sealing ring to deform.

2. The packaging bottle according to claim 1, characterized in that: The transition portion is provided with an annular groove for mounting the sealing ring.

3. The packaging bottle according to claim 2, characterized in that: The sealing ring has a wider base and a narrower extension, and a gap is provided between the extension and the annular wall to allow the top of the inner bottle to extend therein.

4. The packaging bottle according to claim 1, characterized in that: A piston is arranged in the inner bottle.

5. The packaging bottle according to claim 4, characterized in that: The bottom end of the hole column is provided with a protrusion extending into the inner bottle.

6. The packaging bottle according to claim 5, characterized in that: The piston has a depression area that avoids the protrusion.

7. The packaging bottle according to claim 1, characterized in that: It comprises a pressing cap which is in gap fit with the annular wall, and the pressing cap has a liquid outlet hole which is aligned with the vacuum pump.

8. The packaging bottle according to claim 7, characterized in that: An anti-drop structure is arranged between the shoulder cover and the pressing cap.

9. The packaging bottle according to claim 7, characterized in that: The pressing cap has a liquid conducting channel connected to the vacuum pump.

10. The packaging bottle according to claim 1, characterized in that: The outer bottle and the inner side surface of the shoulder sleeve are snap-connected.

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