CN115013366A

CN115013366A - Pressing pump

Info

Publication number: CN115013366A
Application number: CN202110238935.3A
Authority: CN
Inventors: 李红彪
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-03-04
Filing date: 2021-03-04
Publication date: 2022-09-06

Abstract

The invention discloses a pressing pump, which comprises a base connected to the opening part of a container, wherein a connecting piece capable of inflating the interior of the container to enable the container to discharge liquid outwards when the connecting piece slides relative to the base is connected to the base, a first accommodating cavity for accommodating discharged substances is arranged on the connecting piece, a cavity capable of inflating the first accommodating cavity when the connecting piece moves is enclosed between the connecting piece and the base, a pressing piece capable of moving relative to the base and pressing the connecting piece to slide is further arranged on the base, a liquid outlet communicated with the first accommodating cavity and used for discharging liquid is formed in the pressing piece, and a resetting piece capable of driving the connecting piece to reset is further arranged between the connecting piece and the base. The pressing pump has the advantages of compact and simple structure, fewer parts and components, convenience in assembly, convenience in processing and production and lower cost, and all the parts can be made of uniform materials; because of the unification of processing materials, the recycling is more convenient and the environment is more protected.

Description

Pressing pump

[ technical field ] A method for producing a semiconductor device

The present invention relates to container assemblies, and more particularly to a push-on pump.

[ background of the invention ]

Present press the pump, when production, the part of its equipment is more, and the structure is comparatively complicated moreover, and the procedure is more when the equipment, and workman's packaging efficiency is lower, and it is higher to produce, and the material of the spare part that uses is multiple appearance moreover, consequently when using up the back and retrieving according to the pump, need carry out the split, then retrieve according to the material, and is more troublesome, is unfavorable for the environmental protection.

When the pressing pump needs to pump out foam, the container needs to be shaken before being pressed, so that air in the container is mixed with or reacts with substances, and the defect of inconvenient use exists; meanwhile, the metal elastic part is also easily corroded and oxidized to generate rusty spots, and further the substances in the container are polluted.

The present invention is based on the above-described disadvantages.

[ summary of the invention ]

The invention aims to overcome the defects of the prior art, and provides a pressing pump which is compact and simple in structure, has few parts, can be used without additionally mounting valve parts, and can pump out foam or substances in other forms without shaking in use; the pressing pump of the invention adopts an air spring structure, has the advantages of good rebound effect and no pollution to substances in the container, and avoids the defects of complex assembly structure, high manufacturing cost, easy fatigue damage and pollution caused by using the traditional metal, plastic or soft rubber spring; therefore, the structure of the invention can be used for manufacturing the pressing pump which is easy to recycle and more environment-friendly.

The invention is realized by the following technical scheme:

a push pump, characterized in that: the liquid discharging device comprises a base 1 connected to the opening of a container, wherein a connecting piece 2 capable of inflating the container to discharge liquid outwards when sliding relative to the base 1 is connected to the base 1, a first accommodating cavity 200 for accommodating discharged substances is formed in the connecting piece 2, a cavity 300 capable of inflating the connecting piece 2 into the first accommodating cavity 200 during activity is defined between the connecting piece 2 and the base 1, a pressing piece 4 capable of pressing the connecting piece 2 to slide relative to the base 1 in a pressing mode is further arranged on the pressing piece 4, a liquid outlet 41 communicated with the first accommodating cavity 200 and used for discharging liquid is formed in the pressing piece 4, and a resetting piece 5 capable of driving the connecting piece 2 to reset is further arranged between the connecting piece 2 and the base 1.

The pressing pump as described above is characterized in that: the connecting piece 2 comprises a first connecting cylinder 21 which is connected to the base 1 in a sliding mode and used for extruding liquid, a second connecting cylinder 22 which can inflate the interior of the container when moving downwards and suck out substances in the container when moving upwards is movably connected to the first connecting cylinder 21, a second accommodating cavity 600 which can store the discharged substances is formed among the second connecting cylinder 22, the first connecting cylinder 21 and the base in a matching mode, and a liquid conveying channel 700 which can communicate the second accommodating cavity 600 with the first accommodating cavity 200 is arranged between the second connecting cylinder 22 and the first connecting cylinder 21.

The pressing pump as described above is characterized in that: the second connecting cylinder 22 is provided with a communication hole 221, and the first connecting cylinder 21 is provided with a sealing member 211 which closes the communication hole 221 in an initial state and opens the communication hole 221 to communicate the fluid introduction passage 700 with the first receiving chamber 200 when the first connecting cylinder 21 moves relative to the second connecting cylinder 22.

The pressing pump as described above is characterized in that: the second connecting cylinder 22 is provided with a delivery passage 222 which can pump air into the container when the second connecting cylinder 22 slides downwards and suck out the contents of the container when the second connecting cylinder 22 moves upwards, and the second connecting cylinder 22 is also provided with a drain hole 223 which can communicate the second accommodating cavity 600 with the delivery passage 222.

The pressing pump as described above is characterized in that: the first connecting cylinder 21 is further provided with a closing portion 212 capable of closing the drain hole 223 when sliding with respect to the second connecting cylinder 22.

The pressing pump as described above is characterized in that: first connecting cylinder 21 can form the plenum chamber 11 with the atmosphere intercommunication with the cooperation of base 1 when sliding relative to base 1, first connecting cylinder 21 on be equipped with first locating hole 213, second connecting cylinder 22 on be equipped with and to slide in first locating hole 213 and squeeze into the first grafting portion 224 that holds in the chamber 200 with the air in cavity 300, just first grafting portion 224 on be equipped with and to inflate chamber 11 and cavity 300 intercommunication and can be with first locating hole 213 confined first dislocation mouth 225 when first connecting cylinder 21 slides when initial condition.

The pressing pump as 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 inserting portion 226 capable of sliding in the second positioning hole 214, and the second inserting portion 226 is provided with a second dislocation port 227 capable of sealing the second positioning hole 214 initially and communicating the cavity 300 with the infusion channel 700 when the first connecting cylinder 21 slides.

The pressing pump as described above is characterized in that: the reset piece 5 comprises a closed cavity 51 arranged on the base 1, a pressing part 52 which can move in the closed cavity 51 to change the volume of the closed cavity 51 is arranged in the first connecting cylinder 21, the volume of the closed cavity 51 is increased or decreased, and then pressure difference which can enable the pressing part 52 to slide and reset when external force is removed is generated between the closed cavity 51 and external atmosphere.

The pressing pump as described above is characterized in that: the pressing piece 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.

The pressing pump as 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 smaller than the distance between the second pressing part 43 and the second connecting cylinder 22.

The pressing pump as described above is characterized in that: the pressing piece 4 is further provided with a liquid outlet channel 400 capable of communicating the first accommodating cavity 200 with the liquid outlet 41, the top of the second connecting cylinder 22 is further connected with a grid sheet 8, and the grid sheet 8 is provided with a plurality of wall holes 81 for communicating the first accommodating cavity 200 with the liquid outlet channel 400.

The pressing pump as described above is characterized in that: the base 1 is further provided with a positioning groove 12, and the pressing piece 4 is provided with a convex block 44 which enables the pressing piece 4 to be mutually abutted and fixed with the base 1 when being clamped into the positioning groove 12 and enables the pressing piece 4 to slide relative to the base 1 when being dislocated with the positioning groove 12.

The pressing pump as described above is characterized in that: the second connecting tube 22 has a tube 228 at a lower end thereof, the carrying passage 222 and the drain hole 223 are formed in the tube 228, and the base 1 is further provided with a guide passage 13 for guiding the tube 228.

Compared with the prior art, the invention has the following advantages:

1. when the pressing pump is used, the pressing piece is operated firstly, the pressing piece moves downwards and presses the connecting piece, at the moment, the connecting piece drives air into the container to enable the air pressure in the container to be increased, the substance is discharged into the first accommodating cavity when the connecting piece is reset, the pressing piece is operated again, at the moment, the air in the cavity is driven into the first accommodating cavity, when foam is required to be generated, the substance capable of being mixed with the air to generate the foam is adopted, at the moment, the substance is mixed with the air to generate the foam and then is pumped out from the liquid outlet, the use is very convenient, and when the substance is adopted, the substance in the container can be mixed with the air to continuously generate the foam only by operating the pressing piece, the foam can be pumped out without shaking the container, the use is convenient, and the substance in the container can be discharged out into the first accommodating cavity and mixed with the air to continuously generate the foam by continuously operating the pressing piece, the material can be pumped out outwards, the resetting piece is arranged, the pressing piece is rebounded through the resetting piece, the pressing pump can also be used for pressing and pumping out the material in the corresponding form, the material can be mixed with air to form foam or other corresponding forms to be pumped out, and the application range is wider;

2. according to each part of pump can use multiple material to process production, also can adopt unified material to make, the low price more of cost is convenient for process production moreover, owing to processing material's unity, it is also more convenient to retrieve according to the pump, and more environmental protection, this spare part according to the pump still less, and the workman of being convenient for assembles.

3. The invention has simple structure and convenient operation. The container may hold a substance that is a solution, gel or other.

[ description of the drawings ]

FIG. 1 is one of the cross-sectional views of the push pump of the present invention;

FIG. 2 is a second cross-sectional view of the push pump of the present invention;

FIG. 3 is a third cross-sectional view of the push pump of the present invention;

FIG. 4 is a cross-sectional view of the pump according to the present invention in another direction;

FIG. 5 is a fourth sectional view of the push pump of the present invention;

FIG. 6 is a cross-sectional view of the infusion path of the push pump of the present invention;

FIG. 7 is a cross-sectional view of a base of the push pump of the present invention;

FIG. 8 is a perspective view of a base of the push pump of the present invention;

FIG. 9 is a cross-sectional view of a first connecting cylinder of the push pump of the present invention;

FIG. 10 is a perspective view of a first connecting cylinder of the push pump of the present invention;

FIG. 11 is a cross-sectional view of a pressing member of the pressing pump according to the present invention;

FIG. 12 is a perspective view of a pressing member of the pressing pump according to the present invention;

FIG. 13 is a cross-sectional view of a second connector barrel of the compression pump of the present invention;

FIG. 14 is one of the perspective views of a second connector barrel of the push pump of the present invention;

fig. 15 is a second perspective view of the second connecting cylinder of the push pump according to the present invention.

[ detailed description ] embodiments

The invention is further described below with reference to the accompanying drawings:

as shown in fig. 1 to 15, the present invention provides a pressing pump, which comprises a base 1 connected to a mouth portion of a container, wherein the base 1 is connected with a connecting member 2 capable of inflating the interior of the container when sliding relative to the base to discharge the liquid to the outside, the connecting member 2 is provided with a first accommodating cavity 200 for accommodating the discharged material, a cavity 300 capable of inflating the first accommodating cavity 200 when the connecting member 2 moves is enclosed between the connecting member 2 and the base 1, the base 1 is further provided with a pressing member 4 capable of pressing the connecting member 2 to slide relative to the base, the pressing member 4 is provided with a liquid outlet 41 communicated with the first accommodating cavity 200 for discharging the liquid, and a resetting member 5 capable of resetting the connecting member 2 is further arranged between the connecting member 2 and the base 1.

When the pressing pump is used, firstly, the pressing piece 4 is operated, the pressing piece 4 moves downwards and presses the connecting piece 2, at the moment, the connecting piece 2 drives air into the container, so that the air pressure in the container is increased, substances are discharged into the first accommodating cavity 200 when the connecting piece 2 is reset, the pressing piece 4 is operated again, at the moment, the air in the cavity 300 is driven into the first accommodating cavity 200, the substances and the air are mixed to generate foam, and then the foam is pumped out from the liquid outlet 41, the use is very convenient, only by operating the pressing piece 4, the substances in the container can be mixed with the air to continuously generate the foam, the foam can be pumped out without shaking the container, the use is very convenient, and by continuously operating the pressing piece, the substances in the container can be discharged out into the first accommodating cavity 200 and can be continuously mixed with the air to generate the foam and can be pumped out, and the resetting piece is arranged, the pressing piece is rebounded through the resetting piece, the pressing pump can also be used for pumping out substances in corresponding forms, namely the substances can be mixed with air to form foam or water mist and other corresponding forms for pumping out, and the application range is wider; moreover, each part of the pressing pump can be processed and produced by using different materials and can also be made of uniform materials, so that the cost is lower, and the processing and the production are convenient; because the processing material is unified, it is also more convenient to retrieve according to the pressure pump, and more environmental protection, this spare part according to the pressure pump still less, and the workman of being convenient for assembles. The invention has simple structure and convenient operation. The substance stored in the container can be solution, colloid and the like.

As shown in fig. 1 to 15, the connector 2 includes a first connecting cylinder 21 slidably connected to the base 1 and used for extruding liquid, a second connecting cylinder 22 capable of inflating the container when moving downwards and sucking out the substance in the container when moving upwards is movably connected to the first connecting cylinder 21, a second accommodating cavity 600 capable of storing the discharged substance is formed between the second connecting cylinder 22, the first connecting cylinder 21 and the base in a matching manner, and a liquid conveying passage 700 capable of communicating the second accommodating cavity 600 with the first accommodating cavity 200 is formed between the second connecting cylinder 22 and the first connecting cylinder 21. When the second connecting cylinder 22 moves upwards, the substance in the container is discharged outwards into the second accommodating cavity 600, then the pressing piece 4 is operated again, the pressing piece 4 pushes the first connecting cylinder 21 to slide downwards, and at this time, the substance in the second accommodating cavity 600 enters the first accommodating cavity 200 from the infusion channel 700 after being squeezed.

As shown in fig. 1 to 5, the second connector barrel 22 is provided with a communication hole 221, and the first connector barrel 21 is provided with a sealing member 211 which closes the communication hole 221 in an initial state and opens the communication hole 221 to communicate the fluid introduction path 700 with the first receiving chamber 200 when the first connector barrel 21 moves relative to the second connector barrel 22. When the first connecting cylinder 21 moves relative to the second connecting cylinder 22, the communication hole 221 can be opened, the infusion channel 700 is communicated with the first accommodating cavity 200, the substance in the second accommodating cavity 600 can enter the first accommodating cavity 200 through the infusion channel 700, and when the first connecting cylinder 21 and the second connecting cylinder 22 are restored, the communication hole 221 is closed by the sealing member 211, at the moment, the infusion channel 700 and the first accommodating cavity 200 are closed, and the substance in the second accommodating cavity 600 cannot be discharged into the first accommodating cavity 200. In addition, a valve for preventing liquid from flowing back is arranged in the conventional pressing pump, and the valve can be glass beads or plastic beads, so that the object cannot flow back into the container when coming out, or vacuum cannot be pumped when the object is upwards pumped. The second connecting cylinder 22 is provided with the communicating hole 221, the first connecting cylinder 21 is matched with the sealing piece 211 to realize opening and closing, the existing valve can be replaced, backflow of materials is prevented, the valve is not used in the pressing pump, structural components are reduced, assembly by workers is facilitated, the sealing piece 211 and the communicating hole 221 are simple structures, the sealing piece can be machined when the first connecting cylinder 21 and the second connecting cylinder 22 are molded, and therefore no additional machining step is needed, and production cost is reduced.

As shown in fig. 1 to 15, the second connecting cylinder 22 is provided with a carrying passage 222 which can pump air into the container when the second connecting cylinder 22 slides downward and suck out the contents of the container when the second connecting cylinder 22 moves upward, and the second connecting cylinder 22 is further provided with a drain hole 223 which can communicate the second receiving chamber 600 with the carrying passage 222. And when the second connecting cylinder 22 slides downwards relative to the first connecting cylinder 21, the conveying channel 222 can penetrate into the container, so that the substances can rapidly flow into the second accommodating cavity 600, and the substances in the second accommodating cavity 600 are remained after being discharged into the first accommodating cavity 200, so that the liquid can be discharged by slightly pressing the pressing piece 4 during the next liquid discharging, and the liquid discharging is more convenient.

As shown in fig. 2 to 6, the first connecting cylinder 21 is further provided with a closing portion 212 capable of closing the drain hole 223 when sliding with respect to the second connecting cylinder 22. The closing portion 212 is not a complete turn, and the closing portion 212 is a convex strip capable of closing the drain hole 223, so that the closing portion 212 does not close the drain hole 223 in the initial state, and closes the drain hole 223 when the first connecting cylinder 21 moves downward, and the air in the conveyance path 222 is pushed into the container.

As shown in fig. 1 to 5 and 9, the first connecting tube 21 can cooperate with the base 1 to form an air inflation cavity 11 communicated with the atmosphere when sliding relative to the base 1, the first connecting tube 21 is provided with a first positioning hole 213, the second connecting tube 22 is provided with a first insertion portion 224 capable of sliding in the first positioning hole 213 to drive the air in the cavity 300 into the first accommodating cavity 200, and the first insertion portion 224 is provided with a first dislocation port 225 which communicates the air inflation cavity 11 with the cavity 300 in an initial state and can seal the first positioning hole 213 when the first connecting tube 21 slides.

When the second connecting cylinder 22 moves downwards relative to the first connecting cylinder 21 by a certain position, the first inserting portion 224 is matched with the hole wall of the first positioning hole 213 so as to seal the first positioning hole 213, and the cavity 300 is extruded when the second connecting cylinder 22 and the first connecting cylinder 21 simultaneously descend, air in the cavity 300 is pumped into the first accommodating cavity 200 when being extruded and is mixed with substances so as to generate foam, when the first connecting cylinder 21 moves upwards relative to the second connecting cylinder 22, the first dislocation port 225 communicates the inflating cavity 11 with the cavity 300, and at the moment, the cavity 300 is communicated with the external atmosphere through the inflating cavity 11, so that air is replenished to the cavity 300.

As shown in fig. 1 to 5 and 9, 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 portion 226 capable of sliding in the second positioning hole 214, and the second insertion portion 226 is provided with a second displacement port 227 capable of initially closing the second positioning hole 214 and communicating the cavity 300 with the infusion channel 700 when the first connecting cylinder 21 slides.

When the second connecting cylinder 22 moves downwards relative to the first connecting cylinder 21, the second displacement port 227 is matched with the second positioning hole 214 to communicate the cavity 300 with the infusion channel 700, at the moment, air compressed by the second connecting cylinder 22 and the first connecting cylinder 21 can be driven into the infusion channel 700 from the cavity 300 through the second displacement port 227 and the second positioning hole 214, and is discharged into the first accommodating cavity 200 from the communication hole 221 after being mixed with substances, and when the first connecting cylinder 21 moves upwards relative to the second connecting cylinder 22, the second insertion part 226 can seal the second positioning hole 214, so that foam and substances are prevented from entering the cavity 300 from the second positioning hole 214.

As shown in fig. 1 to 5, the reset member 5 includes a closed cavity 51 disposed on the base 1, a pressing portion 52 is disposed in the first connecting cylinder 21 and is movable in the closed cavity 51 to change a volume of the closed cavity 51, and the volume of the closed cavity 51 is increased or decreased so as to generate a pressure difference between the closed cavity 51 and the external atmosphere, where the pressure difference enables the pressing portion 52 to slide and reset when the external force is removed. When the pressing member 4 is operated, the first connecting cylinder 21 moves downwards, so that the pressing portion 52 presses the closed cavity 51, the space of the closed cavity 51 is reduced, the pressure is increased, and the pressure in the closed cavity 51 can press the pressing portion 52 to move upwards when the external force is removed, so that the first connecting cylinder 21 is reset. Because the piece that resets 5 adopts the way that compressed air kick-backs, can avoid metal spring's fatigue, can not appear rust moreover, and then the material in the pollution container.

The pressing piece 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 smaller than the distance between the second pressing part 43 and the second connecting cylinder 22. In the initial state, the communication hole 221 and the sealing member 211 are pressed against each other to close the fluid infusion channel 700 and the first receiving cavity 200, and fluid cannot be discharged at this time, so that the communication hole 221 and the sealing member 211 need to be separated, and when the distance between the first pressing part 42 and the first connecting cylinder 21 is smaller than the distance between the second pressing part 43 and the second connecting cylinder 22, the pressing member 4 firstly presses the first connecting cylinder 21 downwards to separate the sealing member 211 from the communication hole 221 and open the communication hole 221.

As shown in fig. 1 to 5 and 13 to 14, the pressing member 4 is further provided with a liquid outlet channel 400 capable of communicating the first accommodating cavity 200 with the liquid outlet 41, the top of the second connecting cylinder 22 is further connected with a mesh sheet 8, and the mesh sheet 8 is provided with a plurality of wall holes 81 for communicating the first accommodating cavity 200 with the liquid outlet channel 400. The substance is restricted from further mixing by compression of the air as it passes through the wall holes 81 and the pumped foam is made more uniform.

As shown in fig. 1 to 5, fig. 7 and fig. 11, the base 1 is further provided with a positioning groove 12, and the pressing member 4 is provided with a projection 44 which enables the pressing member 4 to be mutually abutted and fixed with the base 1 when being clamped into the positioning groove 12 and enables the pressing member 4 to slide relative to the base 1 when being dislocated from the positioning groove 12. When the projection 44 is clamped in the positioning groove 12, the pressing piece 4 and the base 1 are abutted against each other, and at the moment, the pressing piece 4 cannot slide relative to the base 1 to discharge liquid, so that the pressing piece 4 can be prevented from being pressed down by mistake in the transportation process to pump out substances and foams. When liquid is required to be discharged, the pressing piece 4 is rotated to cause the convex block 44 to be dislocated with the positioning groove 12, and at the moment, the pressing piece 4 can slide relative to the base 1, so that the liquid is discharged.

As shown in fig. 1 to 5 and 7, a tube 228 is provided at a lower end of the second connector 22, the delivery passage 222 and the drain hole 223 are provided on the tube 228, and the base 1 is further provided with a guide passage 13 for guiding the tube 228. The guide passage 13 serves to guide the pipe body 228 to slide therein.

The working principle is as follows:

when the pressing pump is used, firstly the convex block 44 on the pressing piece 4 is rotated to be dislocated with the positioning groove 12 on the base 1, then the pressing piece 4 is pressed downwards, at this time, due to the abutting of the first pressing part 42, the first connecting cylinder 21 moves downwards, and the sealing piece 211 on the first connecting cylinder 21 is separated from the communication hole 221 on the second connecting cylinder 22 during the movement, so that the second accommodating cavity 600, the first accommodating cavity 200 and the infusion channel 700 are communicated with each other through the communication hole 221, and the liquid discharge hole 223 on the second connecting cylinder 22 is sealed by the sealing part 212 on the first connecting cylinder 21, when the pressing piece 4 moves downwards continuously, the second pressing part 43 presses the second connecting cylinder 22, at this time, the pressing piece 4 presses the second connecting cylinder 22 and the first connecting cylinder 21 simultaneously, so as to press the air in the conveying channel 222 on the second connecting cylinder 22 into the interior of the container, so as to raise the pressure in 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 inserting-connecting part 224, so that the cavity 300 is closed, the second positioning hole 214 is matched with the second dislocation port 227 to communicate the cavity 300 with the infusion channel 700, and air in the cavity 300 can be pressed into the infusion channel 700 under the matching of the first connecting cylinder 21 and the first inserting-connecting part 224.

After the pressure of the pressing member 4 is removed, the first connecting cylinder 21 is reset by the reset member 5 and moves upwards, the sealing part 212 opens the liquid discharge hole 223 when the first connecting cylinder 21 moves upwards, at this time, the substance in the container can be discharged from the liquid discharge hole 223 to the second accommodating chamber 600 through the conveying passage 222 and stored, the first connecting cylinder 21 continues to move upwards until the sealing part 211 abuts against the communication hole 221 so that the first connecting cylinder 21 pushes against the second connecting cylinder 22 to reset, at this time, the communication hole 221 is sealed, the first accommodating chamber 200 and the liquid conveying passage 700 cannot be communicated, and when the first connecting cylinder 21 moves upwards, the second positioning hole 214 is closed by the second inserting part 226, so that the air in the cavity 300 cannot enter the liquid conveying passage 700, and the first positioning hole 213 is matched with the first dislocation hole 225 on the first inserting part 224 so that the cavity 300 is communicated with the external atmosphere through the air charging cavity 11 to replenish the cavity 300, the first pressing portion 42 of the pressing member 4 is pressed by the first connecting cylinder 21 and is reset.

When the pressing piece 4 is pressed down again, the sealing piece 211 is separated from the communication hole 221 to conduct the first accommodation chamber 200, the liquid feeding passage 700, the liquid discharge hole 223 and the carrying passage 222, and make up air to the carrying passage 222 before the liquid discharge hole 223 is completely closed by the closing part 212, and the first connecting cylinder 21 presses the substance stored in the second accommodation chamber 600 while moving down, so that the substance is fed from the communication hole 221 into the first accommodation chamber 200 after passing through the liquid feeding passage 700, and in the process of passing through the liquid feeding passage 700, the air in the cavity 300 is driven into the liquid feeding passage 700 to be mixed with the substance to generate foam, and then is pumped out from the liquid outlet 41 via the liquid discharge passage 400 after being fed from the communication hole 221 into the first accommodation chamber 200 to be foamed, and when the foam enters from the first accommodation chamber 200 into the liquid discharge passage 400, the substance is compressed twice by the pressing of the air in the cavity 300 and the wall hole 81 of the communication hole 221, and the mixing with air is more thorough, and the pumped foam is finer.

Claims

1. A push pump, characterized in that: the liquid discharging device comprises a base (1) connected to a mouth of a container, a connecting piece (2) capable of inflating the container to enable the container to discharge liquid outwards when sliding relative to the base is connected to the base (1), a first accommodating cavity (200) used for accommodating discharged substances is formed in the connecting piece (2), a cavity (300) capable of inflating the first accommodating cavity (200) when the connecting piece (2) moves is defined between the connecting piece (2) and the base (1), a pressing piece (4) capable of pressing the connecting piece (2) to slide relative to the base (1) is further arranged on the base (1), a liquid outlet (41) communicated with the first accommodating cavity (200) and used for discharging liquid is formed in the pressing piece (4), and a resetting piece (5) capable of driving the connecting piece (2) to reset is further arranged between the connecting piece (2) and the base (1).

2. The push pump according to claim 1, wherein: connecting piece (2) including connect on base (1) slidable and be used for the first connecting cylinder (21) of extrusion play liquid, first connecting cylinder (21) go up movably to be connected with can inflate in the container when moving down and can hold chamber (600) are held to the second that the cooperation was formed with the second that can store discharged material when moving up in the container (22), first connecting cylinder (21) and base, just second connecting cylinder (22) and first connecting cylinder (21) between be equipped with infusion passageway (700) that can communicate second and hold chamber (600) and first chamber (200) of holding.

3. The push pump according to claim 2, wherein: the second connecting cylinder (22) is provided with a communicating hole (221), the first connecting cylinder (21) is provided with a sealing member (211) which closes the communicating hole (221) in the initial state and opens the communicating hole (221) to communicate the transfusion channel (700) with the first accommodating cavity (200) when the first connecting cylinder (21) moves relative to the second connecting cylinder (22).

4. The push pump according to claim 2, wherein: the second connecting cylinder (22) is provided with a conveying channel (222) which can pump air into the container when the second connecting cylinder (22) slides downwards and suck out substances in the container when the second connecting cylinder (22) moves upwards, and the second connecting cylinder (22) is also provided with a liquid discharge hole (223) which can communicate the second accommodating cavity (600) with the conveying channel (222).

5. The push pump according to claim 2, wherein: the first connecting cylinder (21) is further provided with a sealing part (212) which can seal the drain hole (223) when sliding relative to the second connecting cylinder (22).

6. The push pump according to claim 2, wherein: first connecting cylinder (21) can form gas chamber (11) with atmosphere intercommunication with base (1) cooperation when sliding relative base (1), first connecting cylinder (21) on be equipped with first locating hole (213), second connecting cylinder (22) on be equipped with and to slide in first locating hole (213) and squeeze into first grafting portion (224) that hold in the chamber (200) with the air in cavity (300), just first grafting portion (224) on be equipped with and to inflate chamber (11) and cavity (300) intercommunication and can be with first locating hole (213) confined first dislocation mouth (225) when first connecting cylinder (21) slides when initial condition.

7. The push pump according to claim 2, wherein: the first connecting cylinder (21) is further provided with a second positioning hole (214), the second connecting cylinder (22) is provided with a second inserting part (226) capable of sliding in the second positioning hole (214), and the second inserting part (226) is provided with a second dislocation port (227) which seals the second positioning hole (214) at the beginning and can communicate the cavity (300) with the infusion channel (700) when the first connecting cylinder (21) slides.

8. The push pump according to claim 2, wherein: the reset piece (5) comprises a closed cavity (51) arranged on the base (1), a pressing part (52) capable of moving in the closed cavity (51) to change the volume of the closed cavity (51) is arranged in the first connecting tube (21), the volume of the closed cavity (51) is increased or reduced, and then a pressure difference capable of enabling the pressing part (52) to slide and reset when external force is removed is generated between the closed cavity (51) and external atmosphere.

9. The push pump according to claim 2, wherein: the pressing piece (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).

10. The push pump according to claim 9, wherein: in the initial state, the distance between the first pressing part (42) and the first connecting cylinder (21) is smaller than the distance between the second pressing part (43) and the second connecting cylinder (22).

11. The push pump according to claim 1, wherein: the pressing piece (4) is further provided with a liquid outlet channel (400) capable of communicating the first accommodating cavity (200) with the liquid outlet (41), the top of the second connecting cylinder (22) is further connected with a grid sheet (8), and the grid sheet (8) is provided with a plurality of wall holes (81) used for communicating the first accommodating cavity (200) with the liquid outlet channel (400).

12. The push pump according to claim 1, wherein: the base (1) on still be equipped with constant head tank (12), pressing piece (4) on be equipped with make pressing piece (4) can mutually support when going into in constant head tank (12) and lean on and fix with base (1) and make pressing piece (4) gliding lug (44) relative base (1) when misplacing with constant head tank (12).

13. The push pump according to claim 4, wherein: the lower end of the second connecting cylinder (22) is provided with a pipe body (228), the conveying channel (222) and the liquid discharge hole (223) are arranged on the pipe body (228), and the base (1) is also provided with a guide channel (13) for guiding the pipe body (228).