A three-way squeeze pump and squeeze bottle thereof

Abstract

The utility model relates to the field of press pump especially three -way press pump, a kind of including: pump body, it is equipped with pump cavity and first check valve structure in it, press structure, it includes press head and press assembly, one end of the press assembly is connected in the press head, and the press assembly is arranged in the pump cavity;Bypass pipe is equipped with first passage and second passage, the first passage is communicated with the pump cavity;Second check valve structure is equipped at the connection of the second passage and the first passage, the second check valve limits content from the first passage flows into the second passage;Liquid outlet nozzle is sealingly connected with the second passage, and it is communicated with the second passage.The advantage is that the overall length of pump is very short, can be adapted to a variety of bottle body, improves user experience.

Description

Technical Field

[0001] This utility model belongs to the field of push pumps, and specifically relates to a three-way push pump and its push bottle. Background Technology

[0002] Existing push-pump pumps have a relatively simple internal structure, typically with only one simple channel, and the valve system is not precise enough. This results in the liquid in the pump chamber not being completely discharged, with some flowing back into the bottle. During this backflow, liquid that may have been contaminated at the pump head can easily be carried back into the bottle, thus contaminating the contents of the entire bottle. Utility Model Content

[0003] To solve the above-mentioned technical problems, the purpose of this utility model is to provide a three-way push pump and its push bottle, which avoids contamination of the contents inside the bottle.

[0004] A three-way push-button pump includes: a pump body having a pump chamber and a first one-way valve structure therein, with a suction hole at the lower end of the pump chamber, the first one-way valve structure being disposed at the suction hole and limiting the contents to enter the pump chamber unidirectionally from the suction hole; a push-button structure including a push-button head and a push-button assembly, one end of the push-button assembly being connected to the push-button head and disposed within the pump chamber; a bypass pipe having a first passage and a second passage, the first passage communicating with the pump chamber; a second one-way valve structure being disposed at the connection between the second passage and the first passage, the second one-way valve limiting the contents to flow from the first passage to the second passage; and a dispensing nozzle that is sealed to and communicates with the second passage.

[0005] As a further improvement to the above technical solution, the pressing assembly includes a connector and a piston connected to the connector. The connector protrudes from the pump chamber and the pressing head is disposed on the pressing assembly through the connector. The piston is disposed in the pump chamber and has a piston cavity. An elastic structural member is disposed in the piston cavity. The piston cavity communicates with the pump chamber.

[0006] As a further improvement to the above technical solution, the first one-way valve structure includes a first ball and a first one-way valve seat, the first one-way valve seat is disposed above the liquid suction hole, and the first ball is located on the first one-way valve seat.

[0007] As a further improvement to the above technical solution, the first one-way valve seat has an inverted conical structure.

[0008] As a further improvement to the above technical solution, the second one-way valve structure includes a second ball and a second one-way valve seat. The second one-way valve seat is disposed at the connection between the second passage and the first passage, and the second ball is located on the second one-way valve seat.

[0009] As a further improvement to the above technical solution, the second one-way valve seat has an inverted conical structure.

[0010] The beneficial effects of this utility model are as follows: This utility model discloses a three-way push-button pump. Initially, when the push-button is pressed, the push-button assembly moves downwards, compressing the gas in the pump chamber. The pressure generated by this compression is simultaneously transmitted downwards, tightly pressing the first one-way valve structure onto the suction hole. Since the first passage is connected to the pump chamber, the gas in the pump chamber enters the first passage. At this time, the gas pushes the second one-way valve structure upwards, and the second one-way valve structure is in an open state. When the push-button is released, the push-button assembly moves upwards, and the pump chamber is in a negative pressure state. Therefore, the contents of the bottle are sucked in. Inside the pump chamber, since the pump chamber is connected to the first passage, the contents will also enter the first passage. Since the second passage is connected to the outside, the second one-way valve structure moves downward under atmospheric pressure. At this time, the second one-way valve structure is in the closed state. Therefore, by repeatedly pressing the press head, the contents can be discharged from the dispensing nozzle. The amount of contents discharged each time is the volume of the first passage. As can be seen from the above, the contents only flow in the channel that is in contact with the pump body and hardly come into contact with the air, effectively preventing bacteria and contaminants from entering the bottle, protecting the product from spoilage. Moreover, the amount of liquid discharged each time is fixed, avoiding waste and making it easy to control the cost of use.

[0011] This utility model also provides a press bottle, which includes any of the three-way press pumps described above, a bottle body, and a screw cap, wherein the bottle body and the three-way press pump are sealed together by the screw cap.

[0012] As a further improvement to the above technical solution, the threaded cover is provided with a first through hole and a second through hole. The pump body is sealed and fixed on the threaded cover through the first through hole, and the second passage is sealed and fixed on the threaded cover through the second through hole.

[0013] As a further improvement to the above technical solution, the press bottle also includes a dust cover, which is rotatably connected to the bottle body.

[0014] As a further improvement to the above technical solution, the dust cover includes a dustproof cavity that accommodates the liquid outlet.

[0015] The beneficial effects of this utility model are as follows: The press bottle provided by this utility model adopts the above-mentioned three-way press pump. The overall length of the pump is very short, which can be adapted to various bottle bodies and improve the user experience. Attached Figure Description

[0016] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments.

[0017] Figure 1 This is a cross-sectional view of the three-way push pump described in this utility model; Figure 2 This is a cross-sectional view of the press bottle described in this utility model.

[0018] Figure 3 This is a schematic diagram of the structure of the press bottle described in this utility model; Figure 4 This is an exploded view of the press bottle described in this utility model; Figure 5 This is a three-dimensional view of the three-way push pump described in the new type after the dust cover is rotated and opened.

[0019] In the diagram: Pump chamber - 100, suction hole - 110, first ball - 121, first one-way valve seat - 122, pressing head - 200, connector - 210, piston - 220, elastic structural component - 230, first passage - 310, second passage - 320, second ball - 321, second one-way valve seat - 322, dispensing nozzle - 400, bottle body - 500, threaded cap - 600, dust cover - 700, dustproof chamber - 710. Detailed Implementation

[0020] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0021] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0022] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0023] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0024] Reference Figures 1-5 A three-way push-button pump includes: a pump body having a pump chamber 100 and a first one-way valve structure therein; a suction hole 110 is provided at the lower end of the pump chamber 100; the first one-way valve structure is disposed at the suction hole 110 and limits the contents to enter the pump chamber 100 unidirectionally from the suction hole 110; a push-button structure including a push-button head 200 and a push-button assembly; one end of the push-button assembly is connected to the push-button head 200 and the push-button assembly is disposed within the pump chamber 100; a bypass pipe having a first passage 310 and a second passage 320; the first passage 310 communicating with the pump chamber 100; a second one-way valve structure is provided at the connection between the second passage 320 and the first passage 310; the second one-way valve limits the contents to flow from the first passage 310 to the second passage 320; and a dispensing nozzle 400, which is sealed to and communicates with the second passage 320.

[0025] In this embodiment, the pressing assembly includes a connector 210 and a piston 220 connected to the connector 210. The connector 210 protrudes from the pump chamber 100, and the pressing head 200 is disposed on the pressing assembly through the connector 210. The piston 220 is disposed within the pump chamber 100, and a piston cavity is provided within the piston 220. An elastic structural member 230 is provided within the piston cavity. The piston cavity communicates with the pump chamber 100. In this embodiment, the elastic structural member 230 is a spring.

[0026] In this embodiment, the first one-way valve structure includes a first ball 121 and a first one-way valve seat 122. The first one-way valve seat 122 is disposed above the liquid suction hole 110, and the first ball 121 is located on the first one-way valve seat 122. In this embodiment, the first ball 121 is a glass ball.

[0027] In this embodiment, the first one-way valve seat 122 is an inverted conical structure. The advantages of this structure are: when the inverted conical structure contacts the first ball 121, it forms an annular linear contact. Compared with the surface contact of the planar valve seat, the linear contact has a greater pressure under the same pressing pressure, which can press the first ball 121 into the first one-way valve seat 122 more quickly and tightly, forming an effective seal and preventing liquid from flowing back when pressed.

[0028] In this embodiment, the second one-way valve structure includes a second ball 321 and a second one-way valve seat 322. The second one-way valve seat 322 is disposed at the connection between the second passage 320 and the first passage 310, and the second ball 321 is located on the second one-way valve seat 322. In this embodiment, the second ball 321 is a glass ball.

[0029] In this embodiment, the second one-way valve seat 322 has an inverted conical structure. The advantages of this structure are: when the inverted conical structure contacts the second ball 321, it forms an annular linear contact. Compared with the surface contact of the planar valve seat, the linear contact has a greater pressure under the same pressing pressure, which can press the second ball 321 into the second one-way valve seat 322 more quickly and tightly, forming an effective seal and preventing liquid from flowing back when pressed.

[0030] This embodiment discloses a three-way push-button pump. Initially, when the push-button head 200 is pressed, the push-button assembly moves downwards, compressing the gas inside the pump chamber 100. The pressure generated by this compression is simultaneously transmitted downwards, pressing the first one-way valve structure tightly against the suction hole 110. Since the first passage 310 is connected to the pump chamber 100, the gas inside the pump chamber 100 enters the first passage 310. At this time, the gas pushes the second one-way valve structure upwards, putting the second one-way valve structure in an open state. When the push-button head 200 is released, the push-button assembly moves upwards, and the pump chamber 100 is in a negative pressure state. Therefore, the contents of the bottle are drawn into the pump chamber 100. Within the pump chamber 100, since the pump chamber 100 is connected to the first passage 310, the contents will also enter the first passage 310. Since the second passage 320 is connected to the outside, the second one-way valve structure moves downward under atmospheric pressure. At this time, the second one-way valve structure is in a closed state. Therefore, by repeatedly pressing the pressing head 200, the contents can be discharged from the dispensing nozzle 400. The amount of contents discharged each time is the volume of the first passage 310. As can be seen from the above, the contents only flow in the channel that is in contact with the pump body and hardly come into contact with the air, effectively preventing bacteria and contaminants from entering the bottle, protecting the product from spoilage, and the amount of liquid discharged each time is fixed, avoiding waste and making it easy to control the cost of use.

[0031] This embodiment also provides a press bottle, which includes any of the three-way press pumps described above, a bottle body 500, and a threaded cap 600, wherein the bottle body 500 and the three-way press pump are sealed together by the threaded cap 600.

[0032] In this embodiment, the threaded cover 600 is provided with a first through hole and a second through hole. The pump body is sealed and fixed on the threaded cover 600 through the first through hole, and the second passage 320 is sealed and fixed on the threaded cover 600 through the second through hole.

[0033] In this embodiment, the press bottle also includes a dust cover 700, which is rotatably connected to the bottle body 500.

[0034] As a further improvement to the above technical solution, the dust cover 700 includes a dustproof cavity 710, which accommodates the liquid outlet 400.

[0035] The press bottle described in this embodiment uses the aforementioned three-way press pump, which makes it convenient for customers to use, provides a comfortable user experience, and improves the overall user experience.

[0036] The above are merely preferred embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural transformations made based on the inventive concept of this utility model and the contents of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are included within the patent protection scope of this utility model.

Claims

1. A three-way push-button pump, characterized in that, include: The pump body has a pump chamber (100) and a first one-way valve structure inside. A suction hole (110) is provided at the lower end of the pump chamber (100). The first one-way valve structure is located at the suction hole (110) and limits the contents to enter the pump chamber (100) unidirectionally from the suction hole (110). The pressing structure includes a pressing head (200) and a pressing assembly, one end of which is connected to the pressing head (200) and the pressing assembly is disposed within the pump chamber (100); A bypass pipe is provided with a first passage (310) and a second passage (320). The first passage (310) is connected to the pump chamber (100). A second one-way valve structure is provided at the connection between the second passage (320) and the first passage (310). The second one-way valve restricts the contents from flowing from the first passage (310) to entering the second passage (320). The liquid outlet (400) is sealed to and connected to the second passage (320).

2. A three-way push pump as described in claim 1, characterized in that: The pressing assembly includes a connector (210) and a piston (220) connected to the connector (210). The connector (210) protrudes from the pump chamber (100) and the pressing head (200) is disposed on the pressing assembly through the connector (210). The piston (220) is disposed inside the pump chamber (100) and has a piston cavity inside. An elastic structural member (230) is disposed inside the piston cavity. The piston cavity communicates with the pump chamber (100).

3. A three-way push pump as described in claim 1, characterized in that: The first one-way valve structure includes a first ball (121) and a first one-way valve seat (122). The first one-way valve seat (122) is disposed above the liquid suction hole (110), and the first ball (121) is located on the first one-way valve seat (122).

4. A three-way push pump as described in claim 3, characterized in that: The first one-way valve seat (122) has an inverted conical structure.

5. A three-way push pump as described in claim 1, characterized in that: The second one-way valve structure includes a second ball (321) and a second one-way valve seat (322). The second one-way valve seat (322) is disposed at the connection between the second passage (320) and the first passage (310), and the second ball (321) is located on the second one-way valve seat (322).

6. A three-way push pump as described in claim 5, characterized in that: The second one-way valve seat (322) has an inverted conical structure.

7. A press-type bottle, characterized in that: It includes a three-way push pump as described in any one of claims 1 to 6, a bottle body (500), and a threaded cap (600), wherein the bottle body (500) and the three-way push pump are sealed together by the threaded cap (600).

8. A press-type bottle as described in claim 7, characterized in that, The threaded cap (600) is provided with a first through hole and a second through hole. The pump body is sealed and fixed on the threaded cap (600) through the first through hole, and the second passage (320) is sealed and fixed on the threaded cap (600) through the second through hole.

9. A press-type bottle as described in claim 7, characterized in that, The press bottle also includes a dust cover (700), which is rotatably connected to the bottle body (500).

10. A press-type bottle as described in claim 9, characterized in that, The dust cover (700) includes a dust chamber (710) that accommodates the liquid outlet (400).

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