Liquid leakage-proof plastic emulsion pump and emulsion bottle

Abstract

The application discloses a liquid-leakage-proof full-plastic emulsion pump emulsion bottle. The emulsion pump comprises a mounting base, which is arranged on a bottle body and is provided with a first liquid outlet communicated with the bottle body; an upper shell arranged at the upper end of the mounting base; an elastic air bag arranged in the upper shell; an air inlet channel defined among the elastic air bag, the upper shell and the mounting base and communicated with the outside and the bottle body, the elastic air bag being capable of closing the air inlet channel when being in an expansion state or opening the air inlet channel when being in a deformation state; a liquid storage cavity defined in the mounting base and / or the elastic air bag and communicated with the first liquid outlet; and a pump head arranged in the upper shell and the elastic air bag and connected with the elastic air bag, the pump head being provided with a liquid outlet communicated with the liquid storage cavity. The structure can seal the air inlet channel and the first liquid outlet at the same time when the pump head is in a sealed state, completely avoids the outflow of a small amount of emulsion when the pump head is converted from the sealed state to an open state, and reduces the production cost and assembly difficulty.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of lotion pumps, in particular to a leak-proof full-plastic lotion pump and a lotion bottle. BACKGROUND

[0002] Lotion bottles are common containers, such as shower gel, shampoo, hand cream, etc. used in daily life are mostly packed in lotion bottles; a lotion bottle comprises a bottle body, a lotion pump is arranged on the bottle body, and the lotion in the bottle body is pumped out of the bottle body by pressing the lotion pump; the existing lotion pump is designed with a sealing structure, the pump head can be rotated down when not in use, so that the air outlet (liquid outlet) is closed, but the air inlet is not closed, when the pump head changes from the sealed state to the open state, especially when the lotion bottle is upside down during transportation, part of the lotion will flow out, resulting in a poor user experience; and the existing lotion pump is composed of plastic parts and metal parts, which makes the lotion pump not only difficult to process and assemble, but also high in cost and with more control points, further increasing the production cost; therefore, there is an urgent need for a leak-proof full-plastic lotion pump and a lotion bottle to solve the above problems. SUMMARY

[0003] The present application aims to at least solve one of the technical problems existing in the prior art. To this end, the present application proposes a leak-proof full-plastic lotion pump and a lotion bottle.

[0004] An embodiment of the present application adopts the technical solution to solve its technical problems: a leak-proof full-plastic lotion pump, comprising:

[0005] A mounting seat is arranged on the bottle body, and a first liquid outlet is arranged on the mounting seat and communicates with the bottle body;

[0006] An upper shell is arranged at the upper end of the mounting seat;

[0007] An elastic air bag is arranged in the upper shell;

[0008] An air inlet is defined between the elastic air bag, the upper shell and the mounting seat and communicates with the outside and the bottle body, the elastic air bag can close the air inlet when in an expanded state, or open the air inlet when in a deformed state;

[0009] A liquid storage cavity is defined in the mounting seat and / or the elastic air bag and communicates with the first liquid outlet;

[0010] A pump head is arranged in the upper shell and the elastic air bag and connected with the elastic air bag, the pump head is provided with a liquid outlet communicating with the liquid storage cavity, and the pump head can deform the elastic air bag when in an open state, or close the first liquid outlet when in a sealed state;

[0011] The mounting seat, the upper shell, the elastic air bag and the pump head are injection molded.

[0012] Further, the inner wall of the upper shell is provided with a first annular protrusion, which is in abutment with the outer wall of the elastic air bag when the elastic air bag is in the relaxed state to close the air inlet, or is separated from the elastic air bag when the elastic air bag is in the deformed state to open the air inlet.

[0013] Further, the liquid leakage prevention full-plastic emulsion pump further comprises a connecting piece having one end connected with the elastic air bag and the other end inserted into the elastic air bag, and the pump head is provided with a first threaded portion, and the inner wall of the connecting piece is provided with a second threaded portion threadedly connected with the first threaded portion.

[0014] Further, the connecting piece is connected with the mounting seat through a guide structure.

[0015] Further, the guide structure comprises a plurality of guide blocks arranged on the outer wall of the connecting piece in a circumferential direction and a plurality of guide grooves arranged on the inner wall of the mounting seat in a circumferential direction, the guide blocks and the guide grooves are arranged along the movement direction of the pump head, and the guide blocks are inserted into the guide grooves.

[0016] Further, the mounting seat is provided with a second liquid outlet communicated with the bottle body and a first sealing cavity communicated with the first liquid outlet and the second liquid outlet, and the first sealing cavity is provided with a first guide through piece.

[0017] Further, the pump head is provided with a second sealing cavity communicated with the outside and the liquid outlet, and the second sealing cavity is provided with a second guide through piece.

[0018] Further, the upper shell is provided with a second annular protrusion, which is in abutment with the pump head when the pump head is in the sealed state to close the outside, the pump head and the upper shell, or is separated from the pump head when the pump head is in the open state to open the outside, the pump head and the upper shell.

[0019] An emulsion bottle comprising the emulsion pump.

[0020] The beneficial effects of the present application: a liquid leakage prevention full-plastic emulsion pump emulsion bottle, the emulsion pump comprises: a mounting seat, which can be installed on the bottle body, the mounting seat is provided with a first liquid outlet communicated with the bottle body; an upper shell arranged at the upper end of the mounting seat; an elastic air bag arranged in the upper shell; an air inlet defined between the elastic air bag, the upper shell and the mounting seat and communicated with the outside and the bottle body, the elastic air bag can close the air inlet when in the relaxed state, or open the air inlet when in the deformed state; a liquid storage cavity defined in the mounting seat and / or the elastic air bag and communicated with the first liquid outlet; a pump head arranged in the upper shell and the elastic air bag and connected with the elastic air bag, the pump head is provided with a liquid outlet communicated with the liquid storage cavity, the pump head can drive the elastic air bag to deform when in the open state, or close the first liquid outlet when in the sealed state; the mounting seat, the upper shell, the elastic air bag and the pump head are injection molded; through the above structure, the pump head can be sealed at the same time when the air inlet and the first liquid outlet are closed, completely avoiding the outflow of a small amount of emulsion when the pump head is converted from the sealed state to the open state, and reducing the production cost and assembly difficulty. BRIEF DESCRIPTION OF DRAWINGS

[0021] The above and / or additional aspects and advantages of the present application will become apparent and be readily appreciated from the following description, including the accompanying drawings, of embodiments of the present application.

[0022] Figure 1 It is a structural schematic diagram of a liquid leakage prevention full-plastic emulsion pump;

[0023] Figure 2 It is a sectional view of a liquid leakage prevention full-plastic emulsion pump in an open state;

[0024] Figure 3 It is a sectional view of a liquid leakage prevention full-plastic emulsion pump in a sealed state;

[0025] Figure 4 It is an exploded view of a liquid leakage prevention full-plastic emulsion pump. DETAILED DESCRIPTION

[0026] This part will describe the specific embodiments of the present application in detail, the preferred embodiments of the present application are shown in the accompanying drawings, the role of the drawings is to supplement the description of the text part with figures, so that people can intuitively and visually understand each technical feature and the overall technical scheme of the present application, but it cannot be understood as a limitation on the protection scope of the present application.

[0027] In the description of the present application, the meaning of multiple is two or more, greater than, less than, more than, etc. are not included in the number, above, below, etc. are included in the number. If it is described as first, second, it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the sequence of indicated technical features.

[0028] In the description of the present application, it should be understood that the orientation description, such as the orientation or position relationship indicated by the upper, lower, front, rear, left, right and the like, is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0029] In the present application, unless otherwise explicitly limited, the words "arranged", "mounted", "connected" and the like should be understood broadly, for example, they can be directly connected or indirectly connected through an intermediate medium; they can be fixedly connected or detachably connected, or they can be integrally formed; they can be mechanically connected; they can be the internal communication of two elements or the interaction relationship between two elements. The skilled in the art can reasonably determine the specific meaning of the above words in the present application in combination with the specific content of the technical solution.

[0030] Referring to Figures 1 to 4 , a liquid leakage prevention full-plastic emulsion pump, comprising:

[0031] A mounting seat 10 can be installed on a bottle body, and a first liquid outlet 11 in communication with the bottle body is arranged on the mounting seat 10;

[0032] An upper shell 20 is arranged at the upper end of the mounting seat 10;

[0033] An elastic air bag 30 is arranged in the upper shell 20;

[0034] An air inlet 41 is defined between the elastic air bag 30, the upper shell 20 and the mounting seat 10 and is in communication with the outside and the bottle body, and the elastic air bag 30 can close the air inlet 41 when in an expanded state or open the air inlet 41 when in a deformed state;

[0035] A liquid storage cavity 42 is defined in the mounting seat 10 and / or the elastic air bag 30 and is in communication with the first liquid outlet 11;

[0036] A pump head 50 is arranged in the upper shell 20 and the elastic air bag 30 and is connected with the elastic air bag 30, and the pump head 50 is arranged with a liquid outlet 43 in communication with the liquid storage cavity 42, and the pump head 50 can drive the elastic air bag 30 to deform when in an open state or close the first liquid outlet 11 when in a sealed state.

[0037] In the present application, referring to Figures 1-3 , Figure 1 and 2 is a structural view of the emulsion pump in an open state, Figure 3 is a structural view of the emulsion pump in a sealed state, wherein, referring to Figure 2 , the arrow indicates the flow direction of the gas, and when in use:

[0038] 1. When the pump head 50 is pressed for the first time, the pump head 50 and the connector 70 are subjected to the action of the first thread 71 and the second thread 72, which causes the pump head 50 to move together with the connector 70, thereby causing the elastic air bag 30 to deform. This causes the gas in the elastic air bag 30 to be discharged through the liquid storage chamber 42 and the liquid outlet 43. After the pump head 50 is released, the emulsion in the bottle is squeezed out under the action of the pressure difference. Specifically, the first guide 91 is pushed open, so that the emulsion enters the liquid storage chamber 42 through the second liquid outlet 12, the first sealing chamber 13, and the first liquid outlet 11.

[0039] 2. When the pump head 50 is pressed for the second time, the elastic air bag 30 is also deformed, allowing the gas in the elastic air bag 30 to enter the liquid storage chamber 42, pushing the emulsion in the liquid storage chamber 42 to be discharged through the liquid outlet 43, thus realizing the pumping out of the emulsion.

[0040] 3. The principle of gas replenishment in the bottle is as follows: Each time the pump head 50 is released, the pump head 50 and the connector 70 will reset under the action of the elastic deformation recovery force of the elastic airbag 30. After the elastic airbag 30 is reset (i.e., in the expanded state), the outer wall of the elastic airbag 30 will abut against the first annular protrusion 61 on the inner wall of the upper shell 20, thereby sealing the air inlet 41. The air inlet 41 is the channel for replenishing gas from the outside into the bottle, preventing the emulsion from being pumped out due to lack of gas. When the pump head 50 is pressed, the elastic airbag 30 will be driven, causing the outer wall of the elastic airbag 30 to separate from the first annular protrusion 61, thereby opening the air inlet 41.

[0041] 4. The advantages of the present invention are: the above structure enables the pump head 50 to be in a sealed state while simultaneously sealing the air inlet 41 and the first liquid outlet 11, completely avoiding the outflow of a small amount of emulsion when the pump head 50 is switched from a sealed state to an open state, and also reducing production costs and assembly difficulty.

[0042] As a preferred embodiment for opening and closing the air intake 41, a first annular protrusion 61 is provided on the inner wall of the upper shell 20. The first annular protrusion 61 can abut against the outer wall of the elastic airbag 30 when the elastic airbag 30 is in the extended state to close the air intake 41; or it can separate from the elastic airbag 30 when the elastic airbag 30 is in the deformed state to open the air intake 41.

[0043] A leak-proof all-plastic emulsion pump also includes a connector 70, one end of which is connected to an elastic airbag 30 and the other end of which is inserted into the elastic airbag 30. The pump head 50 is provided with a first threaded portion 71, and the inner wall of the connector 70 is provided with a second threaded portion 72 that is threaded to the first threaded portion 71. The connector 70 not only serves to connect the elastic airbag 30 and the pump head 50, but also serves to guide the pump head 50 during the pressing and resetting process.

[0044] The connecting piece 70 is connected with the mounting base 10 through a guide structure 80; as a preferred embodiment of the guide structure 80, the guide structure 80 comprises a plurality of guide blocks 81 which are circumferentially spaced on the outer wall of the connecting piece 70 and a plurality of guide grooves 82 which are circumferentially spaced on the inner wall of the mounting base 10, the guide blocks 81 and the guide grooves 82 are arranged along the movement direction of the pump head 50, and the guide blocks 81 are inserted into the guide grooves 82.

[0045] The mounting base 10 is provided with a second liquid outlet 12 which is communicated with the bottle body and a first sealing cavity 13 which is communicated with the first liquid outlet 11 and the second liquid outlet 12, and the first sealing cavity 13 is provided with a first guide through piece 91; the pump head 50 is provided with a second sealing cavity 14 which is communicated with the outside and the liquid outlet 43, and the second sealing cavity 14 is provided with a second guide through piece 92; wherein the first guide through piece 91 and the second guide through piece 92 are preferably balls, and the first guide through piece 91 is larger than the second guide through piece 92, and similarly, the liquid outlet 43 on the pump head 50 is smaller than the second liquid outlet 12, so that more emulsion can enter the liquid storage cavity 42 each time the emulsion is drawn, and a greater pressure can be used to pump out the emulsion.

[0046] The upper shell 20 is provided with a second annular protrusion 62, which can abut against the pump head 50 when the pump head 50 is in a sealed state, so as to close the outside, the pump head 50 and the upper shell 20; or can be separated from the pump head 50 when the pump head 50 is in an open state, so as to open the outside, the pump head 50 and the upper shell 20; when the pump head 50 is in a sealed state, the second annular protrusion 62 and the pump head 50 form a first sealing structure of the air inlet 41, and the first annular protrusion 61 and the outer wall of the elastic air bag 30 form a second sealing structure, which can greatly reduce the risk of liquid leakage in the sealed state.

[0047] The mounting base 10, the upper shell 20, the elastic air bag 30 and the pump head 50 are injection molded; which can greatly reduce the number of control points during the production of the emulsion pump, reduce the production cost, and at the same time improve the assembly efficiency.

[0048] An emulsion bottle comprising the emulsion pump.

[0049] Of course, the present application is not limited to the above-mentioned embodiments, and those skilled in the art can make equivalent modifications or replacements without departing from the spirit of the present application, and these equivalent modifications and replacements are all included in the scope defined by the claims of the present application.

Claims

1. A leak-proof all-plastic emulsion pump, characterized in that, include: The mounting base (10) can be installed on the bottle body, and the mounting base (10) is provided with a first liquid outlet (11) communicating with the bottle body. The upper shell (20) is disposed at the upper end of the mounting base (10); An elastic airbag (30) is disposed inside the upper shell (20); An air intake (41) is defined between the elastic airbag (30), the upper shell (20) and the mounting base (10) and communicates with the outside and the bottle body. The elastic airbag (30) can close the air intake (41) when it is in an extended state or open the air intake (41) when it is in a deformed state. The liquid storage chamber (42) is defined within the mounting base (10) and / or the elastic air bladder (30) and communicates with the first liquid outlet (11); The pump head (50) is inserted into the upper shell (20) and the elastic air bag (30) and connected to the elastic air bag (30). The pump head (50) is provided with a liquid outlet channel (43) that communicates with the liquid storage chamber (42). The pump head (50) can drive the elastic air bag (30) to deform when it is in the open state, or close the first liquid outlet (11) when it is in the sealed state. The mounting base (10), upper shell (20), elastic airbag (30) and pump head (50) are injection molded; The inner wall of the upper shell (20) is provided with a first annular protrusion (61). The first annular protrusion (61) can abut against the outer wall of the elastic airbag (30) when the elastic airbag (30) is in the extended state to close the air intake (41); or it can separate from the elastic airbag (30) when the elastic airbag (30) is in the deformed state to open the air intake (41). It also includes a connector (70) with one end connected to the elastic airbag (30) and the other end inserted into the elastic airbag (30). The pump head (50) is provided with a first threaded part (71), and the inner wall of the connector (70) is provided with a second threaded part (72) that is threaded to the first threaded part (71).

2. The leak-proof all-plastic emulsion pump according to claim 1, characterized in that: The connector (70) is connected to the mounting base (10) via a guide structure (80).

3. The leak-proof all-plastic emulsion pump according to claim 2, characterized in that: The guide structure (80) includes a plurality of guide blocks (81) spaced circumferentially on the outer wall of the connector (70) and a plurality of guide grooves (82) spaced circumferentially on the inner wall of the mounting base (10). The guide blocks (81) and guide grooves (82) are arranged along the movement direction of the pump head (50), and the guide blocks (81) are inserted into the guide grooves (82).

4. The leak-proof all-plastic emulsion pump according to claim 1, characterized in that: The mounting base (10) is provided with a second liquid outlet (12) communicating with the bottle body and a first sealing cavity (13) communicating with the first liquid outlet (11) and the second liquid outlet (12). A first guide and connecting component (91) is provided in the first sealing cavity (13).

5. The leak-proof all-plastic emulsion pump according to claim 1, characterized in that: The pump head (50) is provided with a second sealing cavity (14) that communicates with the outside and the liquid outlet (43), and a second guide conductor (92) is provided in the second sealing cavity (14).

6. The leak-proof all-plastic emulsion pump according to claim 1, characterized in that: The upper shell (20) is provided with a second annular protrusion (62), which can abut against the pump head (50) when the pump head (50) is in a sealed state, so as to close the space between the outside, the pump head (50) and the upper shell (20); or it can separate from the pump head (50) when the pump head (50) is in an open state, so as to open the space between the outside, the pump head (50) and the upper shell (20).

7. A lotion bottle, characterized in that: Includes the emulsion pump according to any one of claims 1-6.

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