WO2024027249A1 - 按压泵及液体容器 - Google Patents

按压泵及液体容器 Download PDF

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Publication number
WO2024027249A1
WO2024027249A1 PCT/CN2023/092524 CN2023092524W WO2024027249A1 WO 2024027249 A1 WO2024027249 A1 WO 2024027249A1 CN 2023092524 W CN2023092524 W CN 2023092524W WO 2024027249 A1 WO2024027249 A1 WO 2024027249A1
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WO
WIPO (PCT)
Prior art keywords
channel
valve stem
piston
stem assembly
pump body
Prior art date
Application number
PCT/CN2023/092524
Other languages
English (en)
French (fr)
Inventor
林添大
莫恒进
Original Assignee
中山市联昌喷雾泵有限公司
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Filing date
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Application filed by 中山市联昌喷雾泵有限公司 filed Critical 中山市联昌喷雾泵有限公司
Publication of WO2024027249A1 publication Critical patent/WO2024027249A1/zh

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D51/00—Closures not otherwise provided for
    • B65D51/24—Closures not otherwise provided for combined or co-operating with auxiliary devices for non-closing purposes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D55/00—Accessories for container closures not otherwise provided for
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D83/00—Containers or packages with special means for dispensing contents
    • B65D83/0005—Containers or packages provided with a piston or with a movable bottom or partition having approximately the same section as the container

Definitions

  • the present invention relates to the technical field of liquid pumps, and in particular to a pressure pump and a liquid container.
  • a push pump is used to squeeze out liquid from a container. It usually includes a pump body and a valve stem assembly that is movably inserted into the pump body. There is a liquid inlet at the bottom of the pump body, and a one-way valve is installed at the liquid inlet.
  • a negative pressure is formed in the liquid storage chamber at the bottom of the pump body so that the liquid storage chamber sucks liquid from the liquid inlet.
  • the valve stem assembly moves closer to the liquid inlet, the liquid is stored The liquid in the cavity is squeezed into the liquid outlet channel in the valve stem assembly.
  • the air outside the container usually enters the pump body through the gap between the pump body and the valve stem assembly and then enters the container through the ventilation hole on the pump body.
  • This air supply method is designed Unreasonable, external moisture can easily enter the pump body through the gap between the pump body and the valve stem assembly, and the waterproof performance needs to be improved.
  • the present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a push pump that can reduce external moisture from entering the inside of the pump body and improve waterproof performance.
  • the present invention also provides a liquid container with the above-mentioned pressing pump.
  • a pressing pump includes a pump body, a one-way valve, a valve stem assembly, a pressing head and an annular portion.
  • the pump body is provided with an accommodation chamber, and the bottom of the accommodation chamber is provided with an inlet. liquid port; the one-way valve is arranged at the liquid inlet; the valve stem assembly is movably arranged in the accommodation cavity, the valve stem assembly is equipped with a piston, and the piston is located in the accommodation cavity, so The periphery of the piston is in close contact with the inner wall of the accommodation cavity.
  • the valve stem assembly is provided with a liquid outlet channel connected with the accommodation cavity. The valve stem assembly and the piston can be relative to the liquid inlet.
  • the press head is located outside the pump body and connected to one end of the valve stem assembly, and the press head is provided with a liquid outlet connected to the liquid outlet channel;
  • the annular portion is provided on the The outer periphery of one end of the valve stem assembly is connected to the side wall of the press head close to the pump body, the annular portion is inserted into the accommodating cavity, and the outer periphery of the annular portion is sealed with the inner wall of the accommodating cavity.
  • the annular portion is provided with a first channel communicating with the accommodating cavity or a first channel communicating with the accommodating cavity is provided between the annular portion and the valve stem assembly, so
  • the press head is provided with a second channel connected with the first channel, the second channel has a first opening, and the first opening is provided on a side wall of the press head close to the pump body and located at the The outer side of the annular part, the outer circumference of the pump body
  • a ventilation hole is provided that can communicate with the accommodation chamber.
  • the ventilation hole is located between the annular portion and an end surface of the piston close to the liquid inlet.
  • the piston is close to the liquid inlet. , the ventilation hole and the accommodation cavity are in a communicating state.
  • the push pump according to the embodiment of the present invention at least has the following beneficial effects: since the annular portion and the inner wall of the accommodating cavity are in contact and closed, it is difficult for external air and moisture to enter from between the annular portion and the inner wall of the accommodating cavity during the air supply process.
  • the external air needs to enter the first channel through the second channel and then enter the accommodation cavity, and finally enter the container through the ventilation hole.
  • the direction of the air entering the second channel from the first opening is consistent with the direction of the air in the second channel.
  • the direction of flow in the channel is different, and the direction of air flow in the second channel is also different from the direction of air flow in the first channel.
  • the length of the air supply path can be increased and the air supply path can be made tortuous, and the external moisture will not be absorbed. It is easy to enter the first channel from the second channel and then into the accommodation cavity of the pump body, which reduces the situation of external moisture entering the inside of the pump body and improves the waterproof performance.
  • the second channel has a second opening located on a side wall of the press head close to the pump body and inside the annular portion, and the second opening is connected to the The first channel is connected.
  • the pressing head is provided with a first through hole along the axial direction of the valve stem assembly, and a closing cover is installed on an end of the first through hole away from the valve stem assembly, and the The closing cover and the side wall of the first through hole enclose to form the second channel.
  • the closing cover is provided with an annular brim
  • a side wall of the pressing head away from the pump body is provided with an annular slot
  • the first through hole is located at the Inside the card slot, the brim is embedded in the card slot.
  • the pump body includes a tubular body and a locking piece embedded in the upper end of the body.
  • a liquid storage chamber is formed inside the body below the locking piece.
  • the liquid inlet is connected to the locking piece.
  • the lower part of the liquid storage chamber is connected, and the locking member is provided with an installation cavity.
  • the installation cavity and the liquid storage cavity are connected through a second through hole.
  • the accommodation cavity includes the liquid storage cavity, the liquid storage cavity, and the liquid storage cavity. Installation cavity and the second through hole, the piston is located in the liquid storage cavity.
  • the ventilation hole is located on the upper side of the lower end surface of the locking piece and communicates with the second gap.
  • the upper end of the piston when the piston is away from the liquid inlet, the upper end of the piston can block the second gap.
  • a first pushing part and an annular second pushing part are provided on the outer periphery of the valve stem assembly, and the piston is movably located between the first pushing part and the second pushing part.
  • the second pushing part is located below the piston, the inlet of the liquid outlet channel is located between the first channel part and the second pushing part, and the lower end surface of the piston can communicate with the second pushing part.
  • the parts are far apart or close together, so that the liquid outlet channel and the liquid storage chamber are connected to each other or disconnect.
  • a liquid container according to a second embodiment of the present invention includes the above-described pressure pump.
  • the liquid container according to the embodiment of the present invention has at least the following beneficial effects: by using the above-mentioned press pump, the situation of external moisture entering the container from the press pump and causing contamination can be reduced, and the waterproof performance can be improved.
  • Figure 1 is an internal schematic diagram of a compression pump according to an embodiment of the present invention
  • Figure 2 is an enlarged view of point A in Figure 1;
  • Figure 3 is an enlarged view of B in Figure 1;
  • Figure 4 is an enlarged view of C in Figure 1;
  • FIG 5 is a schematic diagram of the valve stem assembly and the pressing head of the pressing pump shown in Figure 1;
  • FIG. 6 is an external schematic diagram of the compression pump shown in FIG. 1 .
  • Pump body 100 main body 100a, locking piece 100b, installation cavity 112, second through hole 113, liquid storage cavity 111, accommodation cavity 110.
  • orientation descriptions such as up, down, front, back, left, right, etc., are based on the orientation or position relationships shown in the drawings and are only In order to facilitate the description of the present invention and simplify the description, it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, Therefore, it should not be construed as a limitation of the present invention.
  • a compression pump according to a first embodiment of the present invention includes a pump body 100, a one-way valve 200, a valve stem assembly 300, a press head 400 and an annular portion 500.
  • the pump body 100 is provided with an accommodating Cavity 110, a liquid inlet 120 is provided at the bottom of the accommodation cavity 110; a one-way valve 200 is arranged at the liquid inlet 120; the valve stem assembly 300 is movably arranged in the accommodation cavity 110, and the valve stem assembly 300 is equipped with a piston 700, and the piston 700 is located at In the accommodation cavity 110 , the periphery of the piston 700 is in close contact with the inner wall of the accommodation cavity 110 .
  • the valve stem assembly 300 is provided with a liquid outlet channel 310 that communicates with the accommodation cavity 110 .
  • the valve stem assembly 300 and the piston 700 can face the liquid inlet 120 Lift and lower; the button head 400 is located outside the pump body 100 and connected to one end of the valve stem assembly 300.
  • the button head 400 is provided with a liquid outlet 410 connected to the liquid outlet channel 310; the annular portion 500 is provided on the outer periphery of one end of the valve stem assembly 300.
  • the annular portion 500 is inserted into the accommodating cavity 110, and the outer periphery of the annular portion 500 is in sealing contact with the inner wall of the accommodating cavity 110; wherein, the annular portion 500 is provided with The first channel 510 communicating with the accommodation cavity 110 or the annular portion 500 and the valve stem assembly 300 is provided with a first channel 510 communicating with the accommodation cavity 110 , and the press head 400 is provided with a second channel 420 communicating with the first channel 510 , the second channel 420 has a first opening 421.
  • the first opening 421 is provided on a side wall of the press head 400 close to the pump body 100 and located outside the annular portion 500.
  • the ventilation hole 130 is located between the annular portion 500 and the end surface of the piston 700 close to the liquid inlet 120. When the piston 700 is close to the liquid inlet 120, the ventilation hole 130 is in communication with the accommodation chamber 110.
  • the second channel 420 enters the first channel 510 and then enters the accommodation cavity 110, and finally enters the container through the ventilation hole 130.
  • the direction in which the air enters the second channel 420 from the first opening 421 is consistent with the air in the second channel 420.
  • the direction of the air flow in the second channel 420 is also different from the direction of the air flow in the first channel 510.
  • the length of the air supply path (refer to the dotted line shown in Figure 2) can be increased, and By making the air supply path tortuous, it is difficult for external moisture to enter the first channel 510 from the second channel 420 and then into the accommodation cavity 110 of the pump body 100, thereby reducing the situation of external moisture entering the inside of the pump body 100 and improving the waterproof performance.
  • air needs to enter from the first opening 421 along the direction from the pump body 100 to the pressing head 400. Entering the second channel 420, the air needs to flow in the first channel 510 in the direction from the press head 400 to the pump body 100. Therefore, the process of external air from the first opening 421, the second channel 420 to the first channel 510 , the outside air needs to go through at least two turns before it can enter the first channel 510, while it is difficult for the outside moisture to enter the first channel 510 after two turns.
  • the second channel 420 essentially blocks the passage of moisture. , thereby reducing external moisture entering the interior of the pump body 100 .
  • the compression pump provided by the present invention can replenish air smoothly, operate easily, and have good waterproof performance.
  • the one-way valve 200 closes the liquid inlet 120, so the liquid at the bottom of the accommodation chamber 110 is input into the liquid outlet channel 310.
  • the ventilation hole 130 is connected with the accommodating cavity 110, so the air outside the container flows through the second channel 420, the first channel 510, the accommodating cavity 110 and the ventilation hole 130 in sequence and enters the container to realize air supplementation; the valve stem assembly 300 and the piston 700 thereon
  • the ventilation hole 130 is located between the annular portion 500 and the end surface of the piston 700 close to the liquid inlet 120 , that is, the piston 700 is at least partially located on the side of the ventilation hole 130 close to the liquid inlet 120 , thereby ensuring that a negative pressure is formed between the piston 700 and the liquid inlet 120.
  • the one-way valve 200 opens the liquid inlet 120, allowing the bottom of the accommodation chamber 110 to suck in the liquid in the container.
  • the second channel 420 has a second opening 422 located on a side wall of the pressing head 400 close to the pump body 100 and located inside the annular portion 500,
  • the second opening 422 communicates with the first passage 510 . Therefore, the path of the air entering the second channel 420 from the first opening 421 is at an angle with the path of the air in the second channel 420, and the flow path of the air in the second channel 420 is consistent with the flow path of the air in the first channel 510.
  • the included angle is to increase the resistance of water turning and further reduce the situation of water entering the first channel 510 from the second channel 420 .
  • the pressing head 400 has a first through hole 420a along the axial direction of the valve stem assembly 300, and the first through hole 420a is away from the valve stem assembly 300.
  • a closing cover 600 is installed on one end.
  • the closing cover 600 and the side wall of the first through hole 420a are enclosed to form the second passage 420. That is, after the closing cover 600 closes the end of the first through hole 420a away from the valve stem assembly 300, the first passage 420 is formed.
  • the hole 420a forms the above-mentioned second channel 420, wherein the annular portion 500 separates an end of the first through hole 420a close to the pump body 100 to form a first opening 421 and a second opening 422.
  • the closing cover 600 is provided with an annular brim 610
  • the pressing head 400 is provided with an annular slot on the side wall away from the pump body 100.
  • the first through hole 420a is located inside the slot 430
  • the brim 610 is embedded in the slot 430.
  • the second channel 420 can also be installed with sponges, activated carbon and other water-absorbing components or breathing membranes, which can facilitate the disassembly, assembly and replacement of the water-absorbing components or breathing membranes.
  • the pump body 100 includes a tubular body 100a and a locking piece 100b embedded in the upper end of the body 100a.
  • a liquid storage chamber 111 is formed inside the body 100a below the locking piece 100b.
  • the liquid inlet 120 is connected with the lower part of the liquid storage chamber 111
  • the locking member 100b is provided with an installation cavity 112
  • the installation cavity 112 and the liquid storage cavity 111 are connected through the second through hole 113
  • the accommodation cavity 110 includes the liquid storage cavity 111
  • the installation cavity 112 and the second through hole 113 are installed
  • the piston 700 is located in the liquid storage cavity 111 .
  • the ventilation hole 130 is located on the upper side of the lower end of the locking member 100b and is in contact with the inner wall of the body 100a.
  • the second gap 140 is connected, so that the length of the air supply path can be further increased and the air supply path can be made more tortuous, effectively reducing moisture from entering the inside of the container through the ventilation hole 130 from the inside of the pump body 100 .
  • the valve stem assembly 300 is inserted through the installation cavity 112, the communication hole, and the liquid storage cavity 111 in sequence.
  • the valve stem assembly 300 is provided with a first pushing part 320 and an annular second pushing part 330 on the periphery, and the piston 700 is movably located on the first pushing part 320 . Between the pushing part 320 and the second pushing part 330, the second pushing part 330 is located below the piston 700. The inlet 311 of the liquid outlet channel 310 is located between the first channel 510 and the second pushing part 330. The lower end surface of the piston 700 can The second pushing part 330 is spaced apart or close together.
  • the valve stem assembly 300 moves away from the liquid inlet 120, the lower end surface of the piston 700 is in contact with the second pushing part 330, so that the liquid outlet channel 310 is disconnected from the liquid storage chamber 111. At the same time, the second pushing part 330 pushes the piston 700 to move away.
  • the liquid inlet 120 forms a negative pressure in the liquid storage chamber 111; when the valve stem assembly 300 moves close to the liquid inlet 120, the first pushing part 320 pushes the piston 700 to move close to the liquid inlet 120.
  • the piston 700 can control the connection between the liquid outlet channel 310 and the liquid storage chamber 111 .
  • a ball valve is provided in the liquid outlet channel 310, and the valve stem assembly 300 moves close to the inlet.
  • the ball valve opens the liquid outlet channel 310.
  • the valve stem assembly 300 moves away from the liquid inlet, the ball valve closes the liquid outlet channel 310.
  • a spring 800 is provided between the button head 400 and the pump body 100 , and the spring 800 is used to reset the button head 400 .
  • the spring 800 is sleeved on the valve stem assembly 300, and one end of the spring 800 is located in the installation cavity 112, and the other end is located in the first channel 510.
  • a liquid container provided by a second embodiment of the present invention includes the above-mentioned pressure pump.
  • the above-mentioned push pump it is possible to reduce external moisture entering the container from the push pump and causing contamination, and improve the waterproof performance.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Reciprocating Pumps (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Closures For Containers (AREA)

Abstract

一种按压泵及液体容器，其中按压泵包括泵体（100）、单向阀（200）、阀杆组件（300）、按头（400）及环状部（500），泵体（100）设置有容纳腔（110），阀杆组件（300）活动设置于容纳腔（110），阀杆组件（300）安装有活塞（700），活塞（700）位于容纳腔（110）内；按头（400）位于泵体（100）外部并与阀杆组件（300）一端连接；环状部（500）设置于阀杆组件（300）一端外周并与按头（400）靠近泵体（100）的一侧壁连接，环状部（500）插设于容纳腔（110）且环状部（500）外周与容纳腔（110）的内壁密封抵接；环状部（500）设置有与容纳腔（110）连通的第一通道或者环状部（500）与阀杆组件（300）之间设置有与容纳腔连通的第一通道（510），按头（400）设置有与第一通道（510）连通的第二通道（420），第二通道（420）具有设置于按头（400）靠近泵体（100）的一侧壁并位于环状部（500）的外侧的第一开口（421）。本按压泵能够减少外部的水分进入泵体（100）内部的情况，提高防水性能。

Description

按压泵及液体容器 技术领域
本发明涉及液体泵技术领域，特别涉及一种按压泵及液体容器。
背景技术
按压泵用于从容器中挤出液体，其通常包括泵体及活动插设于泵体内的阀杆组件，泵体的底端开设有进液口，进液口处设置有单向阀，阀杆组件活动远离泵体的底端的进液口时，在泵体底端的储液腔内形成负压以使储液腔从进液口吸入液体，阀杆组件活动靠近进液口时，储液腔内的液体被挤入阀杆组件内的出液通道。现有的按压泵，在吸入液体的过程中，容器外部的空气通常从泵体与阀杆组件之间的缝隙进入泵体内然后从泵体上的换气孔进入容器，这种补气方式设计不合理，外部的水分容易从泵体与阀杆组件之间的缝隙进入泵体，防水性能有待提高。
发明内容
本发明旨在至少解决现有技术中存在的技术问题之一。为此，本发明提出一种按压泵，能够减少外部的水分进入泵体内部的情况，提高防水性能。
本发明还提出一种具有上述按压泵的液体容器。
根据本发明的第一方面实施例的按压泵，包括泵体、单向阀、阀杆组件、按头及环状部，所述泵体设置有容纳腔，所述容纳腔的底部设置有进液口；所述单向阀设置于所述进液口处；所述阀杆组件活动设置于所述容纳腔，所述阀杆组件安装有活塞，所述活塞位于所述容纳腔内，所述活塞的周缘与所述容纳腔的内壁贴合抵接，所述阀杆组件设置有与所述容纳腔连通的出液通道，所述阀杆组件及所述活塞可相对所述进液口升降；所述按头位于所述泵体外部并与所述阀杆组件一端连接，所述按头设置有与所述出液通道相连通的出液嘴；所述环状部，设置于所述阀杆组件一端外周并与所述按头靠近所述泵体的一侧壁连接，所述环状部插设于所述容纳腔且所述环状部外周与所述容纳腔的内壁密封抵接；其中，所述环状部设置有与所述容纳腔连通的第一通道或者所述环状部与所述阀杆组件之间设置有与所述容纳腔连通的第一通道，所述按头设置有与所述第一通道连通的第二通道，所述第二通道具有第一开口，所述第一开口设置于所述按头靠近所述泵体的一侧壁并位于所述环状部的外侧，所述泵体外周 设置有能够与所述容纳腔连通的换气孔，所述换气孔位于所述环状部与所述活塞靠近所述进液口的一端面之间，所述活塞靠近所述进液口时，所述换气孔与所述容纳腔处于连通状态。
根据本发明实施例的按压泵，至少具有如下有益效果：由于环状部与容纳腔的内壁抵接闭合，补气过程中，外部空气、水分难以从环状部与容纳腔的内壁之间进入容纳腔，外部空气需要通过第二通道进入第一通道然后再进入容纳腔，最后通过换气孔进入容器，其中，采用上述设置，空气从第一开口进入第二通道的方向与空气在第二通道内流动的方向不同，空气在第二通道内流动的方向也与空气在第一通道内流动的方向不同，如此，可以增加补气路径的长度，并使补气路径曲折，外部的水分不容易从第二通道进入第一通道进而进入泵体的容纳腔内，减少外部的水分进入泵体内部的情况，提高防水性能。
根据本发明的一些实施例，所述环状部与所述阀杆组件之间具有第一间隙，所述第一通道为所述第一间隙。
根据本发明的一些实施例，所述第二通道具有位于所述按头靠近所述泵体的一侧壁并位于所述环状部的内侧的第二开口，所述第二开口与所述第一通道连通。
根据本发明的一些实施例，所述按头沿着所述阀杆组件的轴向开设有第一通孔，所述第一通孔远离所述阀杆组件的一端安装有封闭盖，所述封闭盖与所述第一通孔的侧壁围合形成所述第二通道。
根据本发明的一些实施例，所述封闭盖设置有呈环状的帽沿，所述按头远离所述泵体的一侧壁开设有呈环形的卡槽，所述第一通孔位于所述卡槽内侧，所述帽沿嵌装于所述卡槽。
根据本发明的一些实施例，所述泵体包括呈管状的本体及嵌装于所述本体上端的锁定件，所述本体内部于所述锁定件下方形成储液腔，所述进液口与所述储液腔的下部连通，所述锁定件开设有安装腔，所述安装腔与所述储液腔之间通过第二通孔连通，所述容纳腔包括所述储液腔、所述安装腔及所述第二通孔，所述活塞位于所述储液腔。
根据本发明的一些实施例，所述锁定件下端与所述本体内壁之间存在第二间隙，所述换气孔位于所述锁定件下端面的上侧并与所述第二间隙连通。
根据本发明的一些实施例，所述活塞远离所述进液口时，所述活塞的上端能够封堵所述第二间隙。
根据本发明的一些实施例，所述阀杆组件外周设置有第一推动部及呈环状的第二推动部，所述活塞可活动地位于所述第一推动部及第二推动部之间，所述第二推动部位于所述活塞下方，所述出液通道的入口位于所述第一通道部与所述第二推动部之间，所述活塞的下端面能够与所述第二推动部远离分开或者靠拢贴合，以使所述出液通道与所述储液腔相互连通或者 断开。
根据本发明的第二方面实施例的液体容器，包括上述的按压泵。
根据本发明实施例的液体容器，至少具有如下有益效果：通过采用上述的按压泵，可以减少外部的水分从按压泵进入容器内造成污染的情况，提高防水性能。
本发明的附加方面和优点将在下面的描述中部分给出，部分将从下面的描述中变得明显，或通过本发明的实践了解到。
附图说明
本发明的上述和/或附加的方面和优点从结合下面附图对实施例的描述中将变得明显和容易理解，其中：
图1为本发明实施例的按压泵的内部示意图；
图2为图1中A处的放大图；
图3为图1中B处的放大图；
图4为图1中C处的放大图；
图5为图1示出的按压泵的阀杆组件与按头的示意图；
图6为图1示出的按压泵的外部示意图。
附图标记：
泵体100、本体100a、锁定件100b、安装腔112、第二通孔113、储液腔111、容纳腔
110、进液口120、换气孔130、第二间隙140、单向阀200、阀杆组件300、出液通道310、入口311、第一推动部320、第二推动部330、按头400、出液嘴410、第二通道420、第一通孔420a、第一开口421、第二开口422、卡槽430、环状部500、第一通道510、封闭盖600、帽沿610、活塞700、弹簧800。
具体实施方式
下面详细描述本发明的实施例，所述实施例的示例在附图中示出，其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施例是示例性的，仅用于解释本发明，而不能理解为对本发明的限制。
在本发明的描述中，需要理解的是，涉及到方位描述，例如上、下、前、后、左、右等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作， 因此不能理解为对本发明的限制。
在本发明的描述中，若干的含义是一个或者多个，多个的含义是两个以上，大于、小于、超过等理解为不包括本数，以上、以下、以内等理解为包括本数。如果有描述到第一、第二只是用于区分技术特征为目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量或者隐含指明所指示的技术特征的先后关系。
本发明的描述中，除非另有明确的限定，设置、安装、连接等词语应做广义理解，所属技术领域技术人员可以结合技术方案的具体内容合理确定上述词语在本发明中的具体含义。
参照图1至图3，根据本发明的第一方面实施例的按压泵，包括泵体100、单向阀200、阀杆组件300、按头400及环状部500，泵体100设置有容纳腔110，容纳腔110的底部设置有进液口120；单向阀200设置于进液口120处；阀杆组件300活动设置于容纳腔110，阀杆组件300安装有活塞700，活塞700位于容纳腔110内，活塞700的周缘与容纳腔110的内壁贴合抵接，阀杆组件300设置有与容纳腔110连通的出液通道310，阀杆组件300及活塞700可相对进液口120升降；按头400位于泵体100外部并与阀杆组件300一端连接，按头400设置有与出液通道310相连通的出液嘴410；环状部500，设置于阀杆组件300一端外周并与按头400靠近泵体100的一侧壁连接，环状部500插设于容纳腔110且环状部500外周与容纳腔110的内壁密封抵接；其中，环状部500设置有与容纳腔110连通的第一通道510或者环状部500与阀杆组件300之间设置有与容纳腔110连通的第一通道510，按头400设置有与第一通道510连通的第二通道420，第二通道420具有第一开口421，第一开口421设置于按头400靠近泵体100的一侧壁并位于环状部500的外侧，泵体100外周设置有能够与容纳腔110连通的换气孔130，换气孔130位于环状部500与活塞700靠近进液口120的一端面之间，活塞700靠近进液口120时，换气孔130与容纳腔110处于连通状态。
由于环状部500与容纳腔110的内壁抵接闭合，补气过程中，外部的空气、水分难以从环状部500与容纳腔110的内壁之间进入容纳腔110，外部的空气需要通过第二通道420进入第一通道510然后再进入容纳腔110，最后通过换气孔130进入容器，其中，采用上述设置，空气从第一开口421进入第二通道420的方向与空气在第二通道420内流动的方向不同，空气在第二通道420内流动的方向也与空气在第一通道510内流动的方向不同，如此，可以增加补气路径(参照图2示出的虚线)的长度，并使补气路径曲折，外部的水分不容易从第二通道420进入第一通道510进而进入泵体100的容纳腔110内，减少外部的水分进入泵体100内部的情况，提高防水性能。
参照图2，具体而言，空气需要沿着从泵体100靠近按头400的方向从第一开口421进 入第二通道420，空气需要沿着从按头400靠近泵体100的方向在第一通道510内流动，因此，外部的空气从第一开口421、第二通道420至第一通道510的过程中，外部的空气需要经过至少两次转向后才能进入第一通道510，而外部的水分则很难经过两次转向后进入第一通道510，第二通道420实质上起到了阻碍水分通过的作用，从而实现减少外部的水分进入泵体100内部的情况。
此外，通过上述设置，可以无需将第一开口421做得较小以限制水分进入第一通道510，第一开口421的大小在满足补气需求的同时也不会导致水分容易进入第一通道510，如此，可以使本发明提供的按压泵补气顺畅、操作轻松，同时防水性能好。
具体而言，阀杆组件300及其上的活塞700移动靠近进液口120时，单向阀200关闭进液口120，于是容纳腔110底部的液体输入出液通道310，此时换气孔130与容纳腔110连通，于是容器外部的空气依次流经第二通道420、第一通道510、容纳腔110以及换气孔130进入容器，实现补气；阀杆组件300及其上的活塞700远离进液口120的过程中，换气孔130位于环状部500与活塞700靠近进液口120的一端面之间，即活塞700至少部分位于换气孔130靠近进液口120的一侧，从而保证活塞700与进液口120之间形成负压，此时单向阀200开启进液口120，使得容纳腔110底部吸入容器内的液体。
需要说明的是，图2及图3中的虚线指示出上述的补气路径的一部分，图2及图3中的箭头指示补气过程中空气的流道方向。
参照图1及图2，可以想象得到的是，在一些实施例中，环状部500与阀杆组件300之间具有第一间隙，第一通道510为第一间隙，此时，环状部500套设于阀杆组件300，通过上述设置，第一通道510加工容易，也方便第二通道420于第一通道510连通。
参照图1及图2，可以想象得到的是，在一些实施例中，第二通道420具有位于按头400靠近泵体100的一侧壁并位于环状部500的内侧的第二开口422，第二开口422与第一通道510连通。于是，空气从第一开口421进入第二通道420的路径与空气在第二通道420内的路径呈夹角，空气在第二通道420内的流动路径与空气在第一通道510内的流动路径呈夹角，以增加水分转向的阻力，进一步减少水分从第二通道420进入第一通道510内的情况。
参照图2及图5，可以想象得到的是，在一些实施例中，按头400沿着阀杆组件300的轴向开设有第一通孔420a，第一通孔420a远离阀杆组件300的一端安装有封闭盖600，封闭盖600与第一通孔420a的侧壁围合形成第二通道420，即封闭盖600将第一通孔420a远离阀杆组件300的一端封闭后，第一通孔420a形成上述的第二通道420，其中，环状部500将第一通孔420a靠近泵体100的一端分隔形成第一开口421及第二开口422。通过上述设置，可 以方便加工第二通道420。
参照图2及图5，可以想象得到的是，在一些实施例中，封闭盖600设置有呈环状的帽沿610，按头400远离泵体100的一侧壁开设有呈环形的卡槽430，第一通孔420a位于卡槽430内侧，帽沿610嵌装于卡槽430，如此，既可以保证封闭盖600与按头400之间的密封效果，也使封闭盖600可拆装，第二通道420内也可以安装有海绵、活性炭等吸水部件或者呼吸膜，可以方便吸水部件或呼吸膜拆装、更换。
参照图1，可以想象得到的是，在一些实施例中，泵体100包括呈管状的本体100a及嵌装于本体100a上端的锁定件100b，本体100a内部于锁定件100b下方形成储液腔111，进液口120与储液腔111的下部连通，锁定件100b开设有安装腔112，安装腔112与储液腔111之间通过第二通孔113连通，容纳腔110包括储液腔111、安装腔112及第二通孔113，活塞700位于储液腔111。通过上述设置，可以通过锁定件100b将活塞700限制储液腔111内，并方便活塞700及阀杆组件300安装。
参照图1及图3，可以想象得到的是，在一些实施例中，锁定件100b下端与本体100a内壁之间存在第二间隙140，换气孔130位于锁定件100b下端面的上侧并与第二间隙140连通，如此，可以进一步增加补气路径的长度，并使补气路径更曲折，有效减少水分从泵体100内部通过换气孔130进入容器内部的情况。具体而言，阀杆组件300依次穿设于安装腔112、连通孔及储液腔111，阀杆组件300与连通孔的侧壁之间存在供空气经过的第三间隙，于是，外部的空气依次流经第二通道420、第一通道510、安装腔112、第三间隙、储液腔111、第二间隙140及换气孔130，然后进入容器内，此时，若外部的水分进入到泵体100内，水分很难从储液腔111往上流入第二间隙140，从而减少水分从泵体100内部通过换气孔130进入容器内部的情况。
参照图1及图4，可以想象得到的是，在一些实施例中，活塞700远离进液口120时，活塞700的上端能够封堵第二间隙140，以使换气孔130与储液腔111之间的连通断开，如此，无需从容器中挤出液体时，即活塞700远离进液口120时，容器内部与外部断开连通，外部的空气不会进入容器内，有利于容器内的液体长时间存放。具体而言，活塞700远离进液口120时，活塞700上端的周缘可以嵌入到第二间隙140内并将第二间隙140封堵。
参照图1及图5，可以想象得到的是，在一些实施例中，阀杆组件300外周设置有第一推动部320及呈环状的第二推动部330，活塞700可活动地位于第一推动部320及第二推动部330之间，第二推动部330位于活塞700下方，出液通道310的入口311位于第一通道510部与第二推动部330之间，活塞700的下端面能够与第二推动部330远离分开或者靠拢贴合。 阀杆组件300移动远离进液口120时，活塞700的下端面与第二推动部330贴合，使出液通道310与储液腔111断开，同时第二推动部330推动活塞700移动远离进液口120，从而在储液腔111内形成负压；阀杆组件300移动靠近进液口120时，第一推动部320推动活塞700移动靠近进液口120，此时第二推动部330与活塞700下端面远离分开，出液通道310与储液腔111连通，储液腔111内的液体输入出液通道310并从出液嘴410喷出。通过上述设置，活塞700可以控制出液通道310与储液腔111之间的通断。
需要说明的是，在本领域中，也可以采用其他设置方式控制出液通道310与储液腔111之间的通断，例如，出液通道310内设置有球阀，阀杆组件300移动靠近进液口时，球阀打开出液通道310，阀杆组件300移动远离进液口时，球阀关闭出液通道310。
参照图1，可以想象得到的是，在一些实施例中，按头400与泵体100之间设置有弹簧800，弹簧800用于使按头400复位。具体而言，弹簧800套设于阀杆组件300，且弹簧800一端位于安装腔112内，另一端位于第一通道510内。
本发明的第二方面实施例提供的液体容器，包括上述的按压泵。通过采用上述的按压泵，可以减少外部的水分从按压泵进入容器内造成污染的情况，提高防水性能。
以上所述实施例的各技术特征可以进行任意的组合，为使描述简洁，未对上述实施例中的各个技术特征所有可能的组合都进行描述，然而，只要这些技术特征的组合不存在矛盾，都应当认为是本说明书记载的范围。
上面结合附图对本发明实施例作了详细说明，但是本发明不限于上述实施例，在所述技术领域普通技术人员所具备的知识范围内，还可以在不脱离本发明宗旨的前提下作出各种变化。

Claims (10)

  1. 一种按压泵，其特征在于，包括：
    泵体(100)，设置有容纳腔(110)，所述容纳腔(110)的底部设置有进液口(120)；
    单向阀(200)，设置于所述进液口(120)处；
    阀杆组件(300)，活动设置于所述容纳腔(110)，所述阀杆组件(300)安装有活塞(700)，所述活塞(700)位于所述容纳腔(110)内，所述活塞(700)的周缘与所述容纳腔(110)的内壁贴合抵接，所述阀杆组件(300)设置有与所述容纳腔(110)连通的出液通道(310)，所述阀杆组件(300)及所述活塞(700)可相对所述进液口(120)升降；
    按头(400)，位于所述泵体(100)外部并与所述阀杆组件(300)一端连接，所述按头(400)设置有与所述出液通道(310)相连通的出液嘴(410)；
    环状部(500)，设置于所述阀杆组件(300)一端外周并与所述按头(400)靠近所述泵体(100)的一侧壁连接，所述环状部(500)插设于所述容纳腔(110)且所述环状部(500)外周与所述容纳腔(110)的内壁密封抵接；
    其中，所述环状部(500)设置有与所述容纳腔(110)连通的第一通道(510)或者所述环状部(500)与所述阀杆组件(300)之间设置有与所述容纳腔(110)连通的第一通道(510)，所述按头(400)设置有与所述第一通道(510)连通的第二通道(420)，所述第二通道(420)具有第一开口(421)，所述第一开口(421)设置于所述按头(400)靠近所述泵体(100)的一侧壁并位于所述环状部(500)的外侧，所述泵体(100)外周设置有能够与所述容纳腔(110)连通的换气孔(130)，所述换气孔(130)位于所述环状部(500)与所述活塞(700)靠近所述进液口(120)的一端面之间，所述活塞(700)靠近所述进液口(120)时，所述换气孔(130)与所述容纳腔(110)处于连通状态。
  2. 根据权利要求1所述的按压泵，其特征在于，所述环状部(500)与所述阀杆组件(300)之间具有第一间隙，所述第一通道(510)为所述第一间隙。
  3. 根据权利要求1所述的按压泵，其特征在于，所述第二通道(420)具有位于所述按头(400)靠近所述泵体(100)的一侧壁并位于所述环状部(500)的内侧的第二开口(422)，所述第二开口(422)与所述第一通道(510)连通。
  4. 根据权利要求3所述的按压泵，其特征在于，所述按头(400)沿着所述阀杆组件(300)的轴向开设有第一通孔(420a)，所述第一通孔(420a)远离所述阀杆组件(300)的一端安装有封闭盖(600)，所述封闭盖(600)与所述第一通孔(420a)的侧壁围合形成所述第二通道(420)。
  5. 根据权利要求4所述的按压泵，其特征在于，所述封闭盖(600)设置有呈环状的帽沿(610)，所述按头(400)远离所述泵体(100)的一侧壁开设有呈环形的卡槽(430)，所述第一通孔(420a)位于所述卡槽(430)内侧，所述帽沿(610)嵌装于所述卡槽(430)。
  6. 根据权利要求1所述的按压泵，其特征在于，所述泵体(100)包括呈管状的本体(100a)及嵌装于所述本体(100a)上端的锁定件(100b)，所述本体(100a)内部于所述锁定件(100b)下方形成储液腔(111)，所述进液口(120)与所述储液腔(111)的下部连通，所述锁定件(100b)开设有安装腔(112)，所述安装腔(112)与所述储液腔(111)之间通过第二通孔(113)连通，所述容纳腔(110)包括所述储液腔(111)、所述安装腔(112)及所述第二通孔(113)，所述活塞(700)位于所述储液腔(111)。
  7. 根据权利要求6所述的按压泵，其特征在于，所述锁定件(100b)下端与所述本体(100a)内壁之间存在第二间隙(140)，所述换气孔(130)位于所述锁定件(100b)下端面的上侧并与所述第二间隙(140)连通。
  8. 根据权利要求7所述的按压泵，其特征在于，所述活塞(700)远离所述进液口(120)时，所述活塞(700)的上端能够封堵所述第二间隙(140)。
  9. 根据权利要求6所述的按压泵，其特征在于，所述阀杆组件(300)外周设置有第一推动部(320)及呈环状的第二推动部(330)，所述活塞(700)可活动地位于所述第一推动部(320)及所述第二推动部(330)之间，所述第二推动部(330)位于所述活塞(700)下方，所述出液通道(310)的入口(311)位于所述第一通道(510)与所述第二推动部(330)之间，所述活塞(700)的下端面能够与所述第二推动部(330)远离分开或者靠拢贴合。
  10. 一种液体容器，其特征在于，包括如权利要求1至9任一项所述的按压泵。
PCT/CN2023/092524 2022-08-05 2023-05-06 按压泵及液体容器 WO2024027249A1 (zh)

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