A squeeze pump

Abstract

The application discloses a press pump, which comprises a base connected to a container mouth, a connecting piece connected to the base and capable of inflating the container and making the container discharge outward when sliding relative to the base, a first accommodating cavity arranged on the connecting piece and used for accommodating the discharged material, a cavity formed between the connecting piece and the base and capable of inflating the first accommodating cavity when the connecting piece moves, a press piece arranged on the base and capable of pressing the connecting piece to slide, a liquid outlet arranged on the press piece and communicated with the first accommodating cavity and used for discharging liquid, and a reset piece arranged between the connecting piece and the base and capable of driving the connecting piece to reset. The press pump has the advantages of compact structure, few parts, convenient assembly, unified material of each part, convenient processing and production, low cost, convenient recycling and environmental protection.

Description

[Technical Field]

[0002] This invention relates to container assemblies, and more particularly to a press pump. [Background Technology]

[0004] Existing push pumps have many parts and complex structures during production. The assembly process is complicated, resulting in low worker efficiency and high production costs. Furthermore, the materials used for the parts are diverse. Therefore, after use, the push pumps need to be disassembled and recycled according to the materials, which is troublesome and not conducive to environmental protection.

[0005] When the pump needs to dispense foam, the container must be shaken before pressing to mix or react with the air inside, which is inconvenient. In addition, many existing pumps use metal elastic components to provide a reset function. However, after prolonged use, these metal elastic components are prone to fatigue, resulting in decreased or lost elasticity, making them unable to reset or function. At the same time, the metal elastic components are also prone to corrosion and oxidation, producing rust spots that contaminate the contents of the container.

[0006] This invention was developed precisely because of the aforementioned shortcomings. [Summary of the Invention]

[0008] The purpose of this invention is to overcome the shortcomings of existing technologies and provide a push-button pump with a compact and simple structure, few parts, and no need for additional valve accessories. It can pump out foam or other forms of substances without shaking during use. Furthermore, the push-button pump of this invention uses an air spring structure, which also has the advantages of good rebound effect and will not contaminate the substances inside the container. This avoids the defects of using traditional metal, plastic, or soft rubber springs, which result in complex assembly structures, high manufacturing costs, easy fatigue damage, and pollution. Therefore, the structure of this invention can be used to make a push-button pump that is easy to recycle and more environmentally friendly.

[0009] This invention is achieved through the following technical solution:

[0010] A press pump, characterized in that: it includes a base 1 connected to the mouth of a container, a connector 2 connected to the base 1 that can pump air into the container when sliding relative to it, thereby causing the container to discharge liquid outward, the connector 2 having a first receiving cavity 200 for receiving the discharged substance, and a cavity 300 formed between the connector 2 and the base 1, which can pump air into the first receiving cavity 200 when the connector 2 moves, the base 1 also having a pressing member 4 that can move relative to it and press against the sliding connector 2, the pressing member 4 having a liquid outlet 41 communicating with the first receiving cavity 200 and for discharging liquid, and a reset member 5 that can drive the connector 2 to reset between the connector 2 and the base 1.

[0011] The press pump described above is characterized in that: the connecting member 2 includes a first connecting cylinder 21 slidably connected to the base 1 and used for squeezing out liquid; a second connecting cylinder 22 is movably connected to the first connecting cylinder 21, which can pump air into the container when moving downward and suck out the substance in the container when moving upward; the second connecting cylinder 22, the first connecting cylinder 21 and the base cooperate to form a second receiving cavity 600 for storing the discharged substance; and an infusion channel 700 is provided between the second connecting cylinder 22 and the first connecting cylinder 21 to connect the second receiving cavity 600 and the first receiving cavity 200.

[0012] The press pump described above is characterized in that: the second connecting cylinder 22 is provided with a connecting hole 221, and the first connecting cylinder 21 is provided with a sealing element 211 that closes the connecting hole 221 in the initial state and opens the connecting hole 221 when the first connecting cylinder 21 moves relative to the second connecting cylinder 22, thereby connecting the infusion channel 700 and the first receiving cavity 200.

[0013] The press pump described above is characterized in that: the second connecting cylinder 22 is provided with a transport channel 222 which can pump air into the container when it slides downward and suck out the material in the container when the second connecting cylinder 22 moves upward; the second connecting cylinder 22 is also provided with a drain hole 223 which can connect the second receiving cavity 600 and the transport channel 222.

[0014] The press pump described above is characterized in that: the first connecting cylinder 21 is further provided with a sealing part 212 that can close the drain hole 223 when sliding relative to the second connecting cylinder 22.

[0015] The press pump described above is characterized in that: the first connecting cylinder 21 can cooperate with the base 1 to form an air chamber 11 communicating with the atmosphere when sliding relative to the base 1; the first connecting cylinder 21 is provided with a first positioning hole 213; the second connecting cylinder 22 is provided with a first insertion part 224 that can slide in the first positioning hole 213 to pump air from the cavity 300 into the first receiving cavity 200; and the first insertion part 224 is provided with a first misalignment port 225 that connects the air chamber 11 and the cavity 300 in the initial state and can close the first positioning hole 213 when the first connecting cylinder 21 slides.

[0016] The press pump described above is characterized in that: the first connecting cylinder 21 is further provided with a second positioning hole 214, the second connecting cylinder 22 is provided with a second insertion part 226 that can slide in the second positioning hole 214, and the second insertion part 226 is provided with a second misalignment port 227 that initially closes the second positioning hole 214 and can connect the cavity 300 with the infusion channel 700 when the first connecting cylinder 21 slides.

[0017] The press pump described above is characterized in that: the reset member 5 includes a closed cavity 51 provided on the base 1, and the first connecting cylinder 21 is provided with a pressing part 52 that can move within the closed cavity 51 to change the volume of the closed cavity 51. The volume of the closed cavity 51 increases or decreases, thereby generating a pressure difference between the closed cavity 51 and the external atmosphere, which allows the pressing part 52 to slide and reset when the external force is removed.

[0018] The press pump described above is characterized in that: the press member 4 is provided with a first pressing part 42 for pressing the first connecting cylinder 21 and a second pressing part 43 for pressing the second connecting cylinder 22.

[0019] The press pump described above is characterized in that: in the initial state, the distance between the first pressing part 42 and the first connecting cylinder 21 is less than the distance between the second pressing part 43 and the second connecting cylinder 22.

[0020] The press pump described above is characterized in that: the press member 4 is further provided with a liquid outlet channel 400 that can connect the first receiving cavity 200 and the liquid outlet 41, and the top of the second connecting cylinder 22 is further connected with a mesh plate 8, and the mesh plate 8 is provided with a plurality of wall holes 81 for connecting the first receiving cavity 200 and the liquid outlet channel 400.

[0021] The press pump described above is characterized in that: the base 1 is further provided with a positioning groove 12, and the pressing member 4 is provided with a protrusion 44 that allows the pressing member 4 to abut against the base 1 and be fixed when it is inserted into the positioning groove 12, and allows the pressing member 4 to slide relative to the base 1 when it is misaligned with the positioning groove 12.

[0022] The press pump described above is characterized in that: the lower end of the second connecting cylinder 22 is provided with a tube body 228, the transport channel 222 and the drain hole 223 are provided on the tube body 228, and the base 1 is also provided with a guide channel 13 for guiding the tube body 228.

[0023] Compared with the prior art, the present invention has the following advantages:

[0024] 1. When using the press pump of this invention, firstly, operate the pressing component. The pressing component moves downward and presses against the connecting component. At this time, the connecting component pumps air into the interior of the container, increasing the air pressure inside the container. When the connecting component resets, the substance is discharged into the first receiving cavity. Then, operate the pressing component again, and the air in the empty cavity is pumped into the first receiving cavity. When foam needs to be generated, a substance that can mix with air to generate foam is used. This substance is mixed with air to generate foam, which is then pumped out from the outlet. It is very convenient to use, and when using this substance… Simply operate the pressing component, and the substance inside the container can mix with air to continuously generate foam. Foam can be pumped out without shaking the container, making it very convenient to use. Continuous operation of the pressing component can also discharge the substance inside the container into the first receiving chamber, where it mixes with air to continuously generate foam and pump it out. A reset component is also provided to spring back the pressing component. The press pump can also be used to press and pump out substances of corresponding forms. The substance can form foam or other corresponding forms by mixing with air and then pumped out, thus expanding its application range.

[0025] 2. The components of the push pump can be manufactured using a variety of materials, or they can be made of a single material, which reduces costs and facilitates manufacturing. Due to the uniformity of the materials used, the push pump is also easier to recycle and is more environmentally friendly. This push pump has fewer parts, making it easier for workers to assemble.

[0026] 3. This invention has a simple structure and is easy to operate. The substance stored in the container can be a solution, colloid, or other substances. [Attached Image Description]

[0028] Figure 1 This is one of the cross-sectional views of the press pump of the present invention;

[0029] Figure 2 This is a second cross-sectional view of the press pump of the present invention;

[0030] Figure 3 This is the third cross-sectional view of the press pump of the present invention;

[0031] Figure 4 This is a cross-sectional view of the press pump of the present invention from another direction;

[0032] Figure 5 This is the fourth cross-sectional view of the press pump of the present invention;

[0033] Figure 6 This is a cross-sectional view of the infusion channel of the press pump of the present invention;

[0034] Figure 7 This is a cross-sectional view of the base in the press pump of the present invention;

[0035] Figure 8This is a perspective view of the base in the press pump of the present invention;

[0036] Figure 9 This is a cross-sectional view of the first connecting cylinder in the press pump of the present invention;

[0037] Figure 10 This is a perspective view of the first connecting cylinder in the press pump of the present invention;

[0038] Figure 11 This is a cross-sectional view of the pressing component in the pressing pump of the present invention;

[0039] Figure 12 This is a perspective view of the pressing component in the pressing pump of the present invention;

[0040] Figure 13 This is a cross-sectional view of the second connecting cylinder in the press pump of the present invention;

[0041] Figure 14 This is one of the perspective views of the second connecting cylinder in the press pump of the present invention;

[0042] Figure 15 This is the second perspective view of the second connecting cylinder in the press pump of the present invention.

Detailed Implementation Methods

[0044] The present invention will now be further described with reference to the accompanying drawings:

[0045] like Figures 1 to 15 As shown, the present invention provides a press pump, including a base 1 connected to the mouth of a container. A connector 2 is connected to the base 1, which can pump air into the container when sliding relative to it, thereby causing the container to discharge liquid. The connector 2 is provided with a first receiving cavity 200 for receiving the discharged substance, and a cavity 300 is formed between the connector 2 and the base 1, which can pump air into the first receiving cavity 200 when the connector 2 moves. The base 1 is also provided with a pressing member 4 that can move relative to it and press against the sliding connector 2. The pressing member 4 is provided with a liquid outlet 41 that communicates with the first receiving cavity 200 and is used for discharging liquid. A reset member 5 that can drive the connector 2 to reset is also provided between the connector 2 and the base 1.

[0046] When using the press pump, first operate the pressing component 4. The pressing component 4 moves downward and presses against the connecting component 2. At this time, the connecting component 2 forces air into the container, increasing the air pressure inside the container. When the connecting component 2 resets, the substance is discharged into the first receiving cavity 200. Then, operate the pressing component 4 again. This time, the air in the cavity 300 is forced into the first receiving cavity 200, mixing the substance with the air to generate foam, which is then pumped out from the outlet 41. It is very convenient to use. Simply operate the pressing component 4, and the substance in the container can mix with air to continuously generate foam. There is no need to shake the container to pump out foam. It is very convenient to use, and continuous operation of the pressing component can pump out the foam. The substance inside the container is discharged into the first receiving cavity 200 and mixes with air to continuously generate foam, which is then pumped out. A reset component is provided to rebound the pressing component. The press pump can also be used to pump out substances in corresponding forms, such as foam or water mist, after mixing with air, thus broadening its application range. Furthermore, the components of the press pump can be manufactured using different materials or made from a single material, reducing costs and facilitating manufacturing. Due to the uniformity of materials, recycling is also easier and more environmentally friendly. The press pump has fewer parts, making assembly easier for workers. This invention has a simple structure and is easy to operate. The substance stored in the container can be a solution, colloid, or other similar substance.

[0047] like Figures 1 to 15 As shown, the connecting member 2 includes a first connecting cylinder 21 slidably connected to the base 1 for squeezing out liquid. A second connecting cylinder 22 is movably connected to the first connecting cylinder 21, which can pump air into the container when moving downwards and suck out the substance in the container when moving upwards. The second connecting cylinder 22, the first connecting cylinder 21, and the base cooperate to form a second receiving cavity 600 for storing the discharged substance. An infusion channel 700 connecting the second connecting cylinder 22 and the first connecting cylinder 21 is provided to connect the second receiving cavity 600 and the first receiving cavity 200. When the second connecting cylinder 22 moves upwards, the substance in the container is discharged outwards into the second receiving cavity 600. Then, the pressing member 4 is operated again, and the pressing member 4 pushes the first connecting cylinder 21 downwards. At this time, the substance in the second receiving cavity 600 is squeezed and enters the first receiving cavity 200 through the infusion channel 700.

[0048] like Figures 1 to 5As shown, the second connecting cylinder 22 is provided with a communicating hole 221, and the first connecting cylinder 21 is provided with a sealing element 211 that closes the communicating hole 221 in the initial state and opens the communicating hole 221 when the first connecting cylinder 21 moves relative to the second connecting cylinder 22, thereby connecting the infusion channel 700 and the first receiving cavity 200. When the first connecting cylinder 21 moves relative to the second connecting cylinder 22, it can open the communicating hole 221. At this time, the infusion channel 700 and the first receiving cavity 200 are connected, and the substance in the second receiving cavity 600 can enter the first receiving cavity 200 through the infusion channel 700. When the first connecting cylinder 21 and the second connecting cylinder 22 are restored, the sealing element 211 closes the communicating hole 221. At this time, the infusion channel 700 and the first receiving cavity 200 are closed, and the substance in the second receiving cavity 600 cannot be discharged into the first receiving cavity 200. In addition, existing push pumps are equipped with valves to prevent liquid backflow. These valves can be glass beads or plastic beads, ensuring that the liquid does not flow back into the container when the object is ejected, or preventing vacuuming when the object is being pulled upwards. This push pump, however, uses a connecting hole 221 on the second connecting cylinder 22, which, in conjunction with the sealing element 211 of the first connecting cylinder 21, allows for opening and closing, thus replacing existing valves and preventing backflow. Furthermore, this push pump eliminates the need for valves, reducing structural components and facilitating assembly. Both the sealing element 211 and the connecting hole 221 are simple structures that can be machined during the forming of the first and second connecting cylinders 21 and 22, eliminating additional processing steps and reducing production costs.

[0049] like Figures 1 to 15 As shown, the second connecting cylinder 22 is provided with a transport channel 222 that can pump air into the container when it slides downwards and suck out the substance in the container when the second connecting cylinder 22 moves upwards. The second connecting cylinder 22 is also provided with a drain hole 223 that can connect the second receiving cavity 600 and the transport channel 222. Moreover, when the second connecting cylinder 22 slides downwards relative to the first connecting cylinder 21, the transport channel 222 can penetrate into the container, so that the substance can flow into the second receiving cavity 600 quickly. Furthermore, there is still some residue in the substance in the second receiving cavity 600 after it is discharged into the first receiving cavity 200. Therefore, when discharging the substance again, the liquid can be discharged by gently pressing the pressing part 4, making the discharging process more convenient.

[0050] like Figures 2 to 6 As shown, the first connecting cylinder 21 is also provided with a sealing part 212 that can close the drain hole 223 when sliding relative to the second connecting cylinder 22. The sealing part 212 is not a complete circle; it is a protrusion that can block the drain hole 223. In the initial state, the sealing part 212 does not block the drain hole 223. When the first connecting cylinder 21 moves downward, it blocks the drain hole 223, thereby forcing the air in the transport channel 222 into the container.

[0051] like Figures 1 to 5 and Figure 9 As shown, the first connecting cylinder 21 can cooperate with the base 1 to form an air chamber 11 that is connected to the atmosphere when it slides relative to the base 1. The first connecting cylinder 21 is provided with a first positioning hole 213. The second connecting cylinder 22 is provided with a first insertion part 224 that can slide in the first positioning hole 213 to pump air from the cavity 300 into the first receiving cavity 200. The first insertion part 224 is provided with a first misalignment port 225 that connects the air chamber 11 and the cavity 300 in the initial state and can close the first positioning hole 213 when the first connecting cylinder 21 slides.

[0052] When the second connecting cylinder 22 moves down a certain position relative to the first connecting cylinder 21, the first insertion part 224 engages with the wall of the first positioning hole 213 to seal the first positioning hole 213. When the second connecting cylinder 22 and the first connecting cylinder 21 descend simultaneously, the cavity 300 is compressed. The air in the cavity 300 is forced into the first receiving cavity 200 and mixes with the substance to generate foam. When the first connecting cylinder 21 moves up relative to the second connecting cylinder 22, the first misalignment port 225 connects the inflation cavity 11 and the cavity 300. At this time, the cavity 300 is connected to the outside atmosphere through the inflation cavity 11, thereby replenishing the cavity 300 with air.

[0053] like Figures 1 to 5 and Figure 9 As shown, the first connecting cylinder 21 is also provided with a second positioning hole 214, and the second connecting cylinder 22 is provided with a second insertion part 226 that can slide in the second positioning hole 214. The second insertion part 226 is provided with a second misalignment port 227 that initially closes the second positioning hole 214 and can connect the cavity 300 with the infusion channel 700 when the first connecting cylinder 21 slides.

[0054] When the second connecting cylinder 22 moves downward relative to the first connecting cylinder 21, the second misalignment port 227 cooperates with the second positioning hole 214 to connect the cavity 300 with the infusion channel 700. At this time, the air compressed by the second connecting cylinder 22 and the first connecting cylinder 21 can be pushed into the infusion channel 700 from the cavity 300 through the second misalignment port 227 and the second positioning hole 214. After mixing with the substance, it is discharged from the connecting hole 221 into the first receiving cavity 200. When the first connecting cylinder 21 moves upward relative to the second connecting cylinder 22, the second insertion part 226 can close the second positioning hole 214 to prevent foam and substance from entering the cavity 300 from the second positioning hole 214.

[0055] like Figures 1 to 5As shown, the reset component 5 includes a closed cavity 51 disposed on the base 1. The first connecting cylinder 21 has a pressing part 52 that can move within the closed cavity 51 to change its volume. The increase or decrease in the volume of the closed cavity 51 creates a pressure difference between the closed cavity 51 and the external atmosphere, allowing the pressing part 52 to slide back to its original position when the external force is removed. When the pressing component 4 is operated, the first connecting cylinder 21 moves downwards, causing the pressing part 52 to compress the closed cavity 51. The space of the closed cavity 51 decreases and the pressure increases. When the external force is removed, the pressure within the closed cavity 51 can push the pressing part 52 upwards, thereby resetting the first connecting cylinder 21. Because the reset component 5 uses compressed air rebound, fatigue of the metal spring can be avoided, and rust will not appear, thus preventing contamination of the contents of the container.

[0056] The pressing member 4 is provided with a first pressing part 42 for pressing the first connecting cylinder 21 and a second pressing part 43 for pressing the second connecting cylinder 22. In the initial state, the distance between the first pressing part 42 and the first connecting cylinder 21 is less than the distance between the second pressing part 43 and the second connecting cylinder 22. In the initial state, the connecting hole 221 and the sealing member 211 are abutting each other, thus closing the infusion channel 700 and the first receiving cavity 200. At this time, liquid cannot be discharged. Therefore, it is necessary to separate the connecting hole 221 and the sealing member 211. When the distance between the first pressing part 42 and the first connecting cylinder 21 is less than the distance between the second pressing part 43 and the second connecting cylinder 22, the pressing member 4 first presses the first connecting cylinder 21 downward, thereby causing the sealing member 211 to disengage from the connecting hole 221 and opening the connecting hole 221.

[0057] like Figures 1 to 5 and Figures 13 to 14 As shown, the pressing member 4 is also provided with a liquid outlet channel 400 that connects the first receiving cavity 200 and the liquid outlet 41. The top of the second connecting cylinder 22 is also connected to a mesh plate 8, and the mesh plate 8 is provided with multiple wall holes 81 for connecting the first receiving cavity 200 and the liquid outlet channel 400. When the substance passes through the wall holes 81, it is restricted and further compressed by the air, thus mixing and making the pumped foam more uniform.

[0058] like Figures 1 to 5 and Figure 7 and Figure 11As shown, the base 1 is also provided with a positioning groove 12, and the pressing member 4 is provided with a protrusion 44 that allows the pressing member 4 to abut against the base 1 and be fixed when it is engaged in the positioning groove 12, and allows the pressing member 4 to slide relative to the base 1 when it is misaligned with the positioning groove 12. When the protrusion 44 is engaged in the positioning groove 12, the pressing member 4 and the base 1 abut against each other, and the pressing member 4 cannot slide relative to the base 1 to release liquid. Therefore, it can prevent the pressing member 4 from being accidentally pressed down during transportation, thus preventing the pumping out of substances and foam. When liquid needs to be released, the pressing member 4 is rotated to misalign the protrusion 44 with the positioning groove 12. At this time, the pressing member 4 can slide relative to the base 1, thereby releasing liquid.

[0059] like Figures 1 to 5 and Figure 7 As shown, the lower end of the second connecting cylinder 22 is provided with a tube body 228, the conveying channel 222 and the drain hole 223 are provided on the tube body 228, and the base 1 is also provided with a guide channel 13 for guiding the tube body 228. The guide channel 13 is used to guide the tube body 228 to slide inside.

[0060] Working principle:

[0061] When using the press pump, first rotate the protrusion 44 on the press member 4 until it is misaligned with the positioning groove 12 on the base 1, and then press down the press member 4. At this time, due to the abutment of the first pressing part 42, the first connecting cylinder 21 moves downward first, and during the movement, the sealing part 211 on the first connecting cylinder 21 disengages from the communicating hole 221 on the second connecting cylinder 22, thereby allowing the second receiving cavity 600, the first receiving cavity 200, and the infusion channel 700 to communicate with each other through the communicating hole 221. Furthermore, the sealing part 212 on the first connecting cylinder 21 seals the drain hole 223 on the second connecting cylinder 22. When the press member 4 continues to move downward, the second pressing part 43 presses against the second... When the connecting cylinder 22 is connected, the pressing member 4 simultaneously presses the second connecting cylinder 22 and the first connecting cylinder 21 downwards, thereby forcing the air in the transport channel 222 on the second connecting cylinder 22 into the interior of the container, thus increasing the pressure inside the container. When the first connecting cylinder 21 moves downwards relative to the second connecting cylinder 22, the first positioning hole 213 is closed by the first insertion part 224, thereby sealing the cavity 300. The second positioning hole 214 and the second misalignment port 227 cooperate to connect the cavity 300 with the infusion channel 700. The air in the cavity 300 can be forced into the infusion channel 700 with the cooperation of the first connecting cylinder 21 and the first insertion part 224.

[0062] After the pressure of the pressing member 4 is released, the first connecting cylinder 21 moves upward by being reset by the reset member 5. When the first connecting cylinder 21 moves upward, the sealing part 212 opens the drain hole 223. At this time, the substance in the container can be discharged from the drain hole 223 through the transport channel 222 and stored in the second receiving cavity 600. The first connecting cylinder 21 continues to move upward until the sealing member 211 abuts against the connecting hole 221, causing the first connecting cylinder 21 to push the second connecting cylinder 22 to reset. At this time, the connecting hole 221 is closed, and the first receiving cavity... When the first connecting cylinder 21 moves upward, the second positioning hole 214 is closed by the second insertion part 226, so the air in the cavity 300 cannot enter the infusion channel 700. The first positioning hole 213 cooperates with the first misalignment port 225 on the first insertion part 224, so that the cavity 300 is connected to the outside atmosphere through the inflation chamber 11, thereby replenishing the cavity 300 with air. The first pressing part 42 on the pressing member 4 is reset by the pressure of the first connecting cylinder 21.

[0063] When the pressing member 4 is pressed down again, the sealing member 211 separates from the connecting hole 221, thus connecting the first receiving cavity 200, the infusion channel 700, the drain hole 223, and the transport channel 222. Before the sealing part 212 completely seals the drain hole 223, air is replenished to the transport channel 222. Furthermore, as the first connecting cylinder 21 moves downward, it compresses the substance stored in the second receiving cavity 600, causing the substance to be transported from the connecting hole 221 to the first receiving cavity 200 after passing through the infusion channel 700. During the process of the substance passing through the infusion channel 700, the air in the cavity 300 is injected into the infusion channel 700 and mixed with the substance to generate foam. After being transported through the connecting hole 221 to the first receiving cavity 200, it is pumped out from the outlet 41 through the outlet channel 400. When the foam enters the outlet channel 400 from the first receiving cavity 200, the substance is compressed by the air in the cavity 300 and compressed twice by the wall hole 81 of the connecting hole 221, so that it is mixed with the air more thoroughly and the pumped foam is finer.

Claims

1. A squeeze pump characterized by: The container includes a base (1) connected to the opening of the container. A connector (2) is connected to the base (1) and can pump air into the container when sliding relative to it, so that the container can discharge liquid outward. The connector (2) is provided with a first receiving cavity (200) for receiving the discharged substance. A cavity (300) is formed between the connector (2) and the base (1) so that air can be pumped into the first receiving cavity (200) when the connector (2) moves. The base (1) is also provided with a pressing member (4) that can move relative to it and press against the connector (2) to slide. The pressing member (4) is provided with a liquid outlet (41) that communicates with the first receiving cavity (200) and is used for discharging liquid. A reset member (5) that can drive the connector (2) to reset is also provided between the connector (2) and the base (1). The connector (2) includes a first connecting cylinder (21) slidably connected to the base (1) and used for squeezing out liquid. A second connecting cylinder (22) is movably connected to the first connecting cylinder (21) to pump air into the container when it moves down and to suck out the substance in the container when it moves up. The second connecting cylinder (22), the first connecting cylinder (21) and the base cooperate to form a second receiving cavity (600) that can store the discharged substance. An infusion channel (700) is provided between the second connecting cylinder (22) and the first connecting cylinder (21) to connect the second receiving cavity (600) and the first receiving cavity (200).

2. The squeeze pump of claim 1, wherein: The second connecting cylinder (22) is provided with a connecting hole (221), and the first connecting cylinder (21) is provided with a sealing element (211) that closes the connecting hole (221) in the initial state and opens the connecting hole (221) when the first connecting cylinder (21) moves relative to the second connecting cylinder (22) to connect the infusion channel (700) and the first receiving cavity (200).

3. The squeeze pump of claim 1, wherein: The second connecting cylinder (22) is provided with a transport channel (222) that can pump air into the container when it slides downward and suck out the contents of the container when it moves upward. The second connecting cylinder (22) is also provided with a drain hole (223) that can connect the second receiving cavity (600) and the transport channel (222).

4. The squeeze pump of claim 1, wherein: The first connecting cylinder (21) is also provided with a sealing part (212) that can close the drain hole (223) when sliding relative to the second connecting cylinder (22).

5. The squeeze pump of claim 1, wherein: When the first connecting cylinder (21) slides relative to the base (1), it can cooperate with the base (1) to form an air chamber (11) that is connected to the atmosphere. The first connecting cylinder (21) is provided with a first positioning hole (213). The second connecting cylinder (22) is provided with a first insertion part (224) that can slide in the first positioning hole (213) to pump the air in the cavity (300) into the first receiving cavity (200). The first insertion part (224) is provided with a first misalignment port (225) that connects the air chamber (11) and the cavity (300) in the initial state and can close the first positioning hole (213) when the first connecting cylinder (21) slides.

6. The squeeze pump of claim 1, wherein: The first connecting cylinder (21) is also provided with a second positioning hole (214), and the second connecting cylinder (22) is provided with a second insertion part (226) that can slide in the second positioning hole (214). The second insertion part (226) is provided with a second misalignment port (227) that initially closes the second positioning hole (214) and can connect the cavity (300) with the infusion channel (700) when the first connecting cylinder (21) slides.

7. The squeeze pump of claim 1, wherein: The reset component (5) includes a closed cavity (51) provided on the base (1). The first connecting cylinder (21) is provided with a pressing part (52) that can move within the closed cavity (51) to change the volume of the closed cavity (51). The increase or decrease in the volume of the closed cavity (51) causes a pressure difference between the closed cavity (51) and the external atmosphere, which enables the pressing part (52) to slide and reset when the external force is removed.

8. The squeeze pump of claim 1, wherein: The pressing member (4) is provided with a first pressing part (42) for pressing the first connecting cylinder (21) and a second pressing part (43) for pressing the second connecting cylinder (22).

9. The squeeze pump of claim 8, wherein: In the initial state, the distance between the first pressing part (42) and the first connecting cylinder (21) is less than the distance between the second pressing part (43) and the second connecting cylinder (22).

10. The squeeze pump of claim 1, wherein: The pressing member (4) is also provided with a liquid outlet channel (400) that can connect the first receiving cavity (200) and the liquid outlet (41). The top of the second connecting cylinder (22) is also connected with a mesh plate (8), and the mesh plate (8) is provided with a plurality of wall holes (81) for connecting the first receiving cavity (200) and the liquid outlet channel (400).

11. The squeeze pump of claim 1, wherein: The base (1) is also provided with a positioning groove (12), and the pressing member (4) is provided with a protrusion (44) that allows the pressing member (4) to abut against the base (1) and be fixed when it is inserted into the positioning groove (12), and allows the pressing member (4) to slide relative to the base (1) when it is misaligned with the positioning groove (12).

12. The squeeze pump of claim 3, wherein: The lower end of the second connecting cylinder (22) is provided with a tube body (228), the conveying channel (222) and the drain hole (223) are provided on the tube body (228), and the base (1) is also provided with a guide channel (13) for guiding the tube body (228).

Images