CN220949320U

CN220949320U - Valve and foam pump

Info

Publication number: CN220949320U
Application number: CN202322615844.4U
Authority: CN
Inventors: 林添大; 戴海春; 何超胜
Original assignee: Zhongshan Luencheong Dispensing Pump Ltd
Current assignee: Zhongshan Luencheong Dispensing Pump Ltd
Priority date: 2023-09-25
Filing date: 2023-09-25
Publication date: 2024-05-14
Anticipated expiration: 2033-09-25

Abstract

The utility model relates to the field of a pressing pump, in particular to a foam pump. The foam pump comprises a valve, the valve is including being annular valve body, the valve body top is equipped with the upper mounting ring that makes progress bellied, and the valve body bottom is equipped with the lower mounting ring that makes progress bellied, the outward flange of valve body is equipped with outer blade, and the inward flange of valve body is equipped with interior blade, the edge of outer blade and interior blade all bends downwards, the valve is formed by thermoplastic elastomer moulding plastics, the top of valve body is equipped with big piston, be equipped with a plurality of second inlet ports that are annular array and distribute on the big piston, second inlet port, first inlet port and breach intercommunication and formation inlet channel, go up collar and big piston sealing connection. The foam pump provided by the utility model has the advantages that the inner and outer blades of the valve can be sealed downwards by means of gravity, so that the inner and outer blades can be made of soft materials, and the opening and closing are flexible.

Description

Valve and foam pump

Technical Field

The utility model relates to the field of a pressing pump, in particular to a valve and a foam pump.

Background

The existing part of daily chemical products are pumped by a foam pump, and the daily chemical products are taken out from the packaging bottles in a foam form by pressing the foam pump.

For example, patent document CN115231125A discloses an all plastic foam pump with a double plastic spring. The outer leaf and the inner leaf of the valve adopted by the valve are opposite in direction, and referring to fig. 6 of the valve, the valve in the prior art cannot be produced by adopting soft materials because the valve needs to keep the shape of the valve stable, otherwise, the outer leaf which is completely oriented is easy to deform due to gravity. The hard material is adopted for production, so that larger air pressure or external force is required to cause the valve to be opened or closed, and influence such as incomplete rebound or heavy pressing hand feeling is caused to a certain extent.

Therefore, a valve and a foam pump are provided to solve the technical problems.

Disclosure of utility model

In order to solve the technical problems, the utility model aims to: the foam pump can be sealed downwards by means of gravity, so that the inner and outer blades can be made of soft materials and are flexible to open and close.

The utility model adopts the technical scheme that: the utility model provides a valve, is annular valve body including being, the valve body top is equipped with the bellied last collar that makes progress, and the valve body bottom is equipped with the bellied lower collar that makes progress, the outward flange of valve body is equipped with outer blade, and the inward flange of valve body is equipped with interior blade, the edge of outer blade and interior blade all bends downwards, the valve is moulded plastics by thermoplastic elastomer and is formed.

As a further improvement of the technical scheme, the valve is made of silica gel, rubber or elastomer.

As a further improvement of the technical scheme, a plurality of first air inlets distributed in an annular array are formed in the valve body, the number of the lower mounting rings is two, and a plurality of notches are formed in the bottom of a circle of lower mounting rings which are arranged outside; the number of the upper mounting rings is two, and the first air inlet holes are arranged between the two upper mounting rings.

The foam pump comprises a valve body, a large piston is arranged at the top of the valve body, a plurality of second air inlets distributed in an annular array are arranged on the large piston, the second air inlets, the first air inlets and the gaps are communicated and form an air inlet channel, and an upper mounting ring is connected with the large piston in a sealing mode.

As a further improvement of the technical scheme, the device further comprises a piston rod, wherein the outer wall of the piston rod is provided with a mounting seat, and an inner ring groove and a U-shaped groove are formed in the mounting seat from inside to outside; the two lower mounting rings extend into the inner ring groove and the U-shaped groove respectively; the mounting seat is provided with a plurality of vent holes which are distributed in an annular shape, and the vent holes are arranged below the inner blades; the outer blade and the inner blade are downwards and hermetically lapped on the mounting seat.

As a further improvement of the technical scheme, the second air inlet holes are arc-shaped.

As the further improvement of above-mentioned technical scheme, still include the screw shell, the top slidable mounting of screw shell has presses the head, be equipped with the spring between pressing head and the screw shell, be equipped with the net in pressing the head and lead to, the bottom of screw shell is equipped with the pump core, and piston rod slidable mounting is in the pump core, the piston rod is connected with pressing the head transmission, be located the mount pad below department in the pump core and be the air cavity, the bottom of piston rod is equipped with little piston, the below department that is located little piston in the pump core is the liquid chamber.

And one side of the pump core is provided with a through hole.

The bottom of the pump core is provided with a suction pipe, and a one-way valve is arranged between the suction pipe and the pump core.

The beneficial effects of the utility model are as follows: the inner and outer blades are downwards arranged and the air inlet and exhaust channels matched with the inner and outer blades are arranged, so that the inner and outer blades can be downwards sealed by means of gravity, and the inner and outer blades can be made of soft materials and are flexibly opened and closed.

Drawings

The utility model is further illustrated by the following description and examples of the embodiments in conjunction with the accompanying drawings.

FIG. 1 is a schematic diagram of a valve according to the present utility model;

FIG. 2 is a cross-sectional view of the device shown in FIG. 1;

FIG. 3 is a schematic diagram of a foam pump according to the present utility model;

FIG. 4 is an exploded view of the device shown in FIG. 3;

FIG. 5 is a schematic view of the piston rod and the mounting base in FIG. 3;

FIG. 6 is a cross-sectional view of a foam pump provided by the present utility model prior to compression;

FIG. 7 is an enlarged schematic view of the portion A of FIG. 6;

FIG. 8 is a cross-sectional view of the foam pump provided by the present utility model after being pressed;

Fig. 9 is an enlarged view of a portion B of fig. 8.

In the figure: 1. a screw shell; 2. pressing the head; 3. a spring; 4. a network is communicated; 5. a piston rod; 51. an exhaust hole; 52. a U-shaped groove; 53. an inner ring groove; 6. a valve body; 61. an outer blade; 62. an inner blade; 63. a first air inlet hole; 64. a notch; 65. a lower mounting ring; 66. an upper mounting ring; 7. a large piston; 71. a second air inlet hole; 8. a pump core; 81. an air cavity; 82. a liquid chamber; 83. a through hole; 9. a small piston.

Detailed Description

Reference will now be made in detail to the present embodiments of the present utility model, examples of which are illustrated in the accompanying drawings, wherein the accompanying drawings are used to supplement the description of the written description so that one can intuitively and intuitively understand each technical feature and overall technical scheme of the present utility model, but not to limit the scope of the present utility model.

In the description of the present utility model, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present utility model and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, a number means one or more, a number means two or more, and greater than, less than, exceeding, etc. are understood to not include the present number, and above, below, within, etc. are understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present utility model, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present utility model can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.

Referring to fig. 1 to 2, a valve comprises a valve body 6 in a ring shape, an upward protruding upper mounting ring 66 is arranged at the top of the valve body 6, a downward protruding lower mounting ring 65 is arranged at the bottom of the valve body 6, an outer blade 61 is arranged at the outer edge of the valve body 6, an inner blade 62 is arranged at the inner edge of the valve body 6, the edges of the outer blade 61 and the inner blade 62 are bent downwards, and the valve is formed by injection molding of a thermoplastic elastomer. Since the outer blades 61 and the inner blades 62 are inclined downward, the production of soft materials can be realized, sealing can be realized only by means of self gravity, and the opened air pressure difference is reduced.

The valve is made of silica gel, rubber or elastomer.

The valve body 6 is provided with a plurality of first air inlets 63 distributed in an annular array, the number of the lower mounting rings is two, and the bottom of a circle of lower mounting rings 65 arranged outside is provided with a plurality of notches 64; the number of the upper mounting rings 66 is two, and the first air inlet holes 63 are arranged between the two upper mounting rings 66.

Referring to fig. 3 to 9, a foam pump comprises a valve body 6, a large piston 7 is arranged at the top of the valve body 6, a plurality of second air inlets 71 distributed in an annular array are arranged on the large piston 7, the second air inlets 71, the first air inlets 63 and the gaps 64 are communicated and form an air inlet channel, and an upper mounting ring 66 is connected with the large piston 7 in a sealing manner.

The piston rod further comprises a piston rod 5, wherein an installation seat is arranged on the outer wall of the piston rod 5, and an inner ring groove 53 and a U-shaped groove 52 are arranged on the installation seat from inside to outside; two of said lower mounting rings 65 extend into the inner annular groove 53 and the U-shaped groove 52, respectively; the mounting seat is provided with a plurality of annularly distributed exhaust holes 51, and the exhaust holes 51 are arranged below the inner blades 62; the outer blade 61 and the inner blade 62 are both in sealing engagement with the mounting base downwardly. Can effectively reduce and pour into the air cavity inside because of the inlet channel water inlet, reduce the risk that pump core 8 does not kick-back.

The second air inlet hole 71 is arc-shaped. The intake air amount and intake speed can be increased, causing the outer vane 61 of the valve body 6 to open quickly.

Still include screw shell 1, screw shell 1's top slidable mounting has presses first 2, be equipped with spring 3 between pressing first 2 and the screw shell 1, be equipped with in pressing first 2 and lead to 4 in the net, screw shell 1's bottom is equipped with pump core 8, piston rod 5 slidable mounting is in the pump core 8, piston rod 5 is connected with pressing first 2 transmission, be located the mount pad below department in pump core 8 and be air cavity 81, the bottom of piston rod 5 is equipped with little piston 9, be located the below department of little piston 9 in the pump core 8 and be liquid chamber 82. When the push head 2 moves upwards, external air pushes the outer blade 61 upwards through the second air inlet hole 71, the first air inlet hole 63 and the notch 64, so that the outer blade 61 moves upwards to be separated from the mounting seat, and the air enters the air cavity 81, when the push head 2 is pressed downwards, the liquid product moves upwards to the net through 4 through the liquid cavity, the air in the air cavity 81 pushes the inner blade 62 upwards through the air outlet hole 51, so that the inner blade 62 moves upwards to be separated from the mounting seat, and the air in the air cavity 81 enters the net through 4 to be mixed with the liquid product to form foam and is discharged through the push head 2.

A through hole 83 is provided on one side of the pump core 8. At the time of air intake, a part of the air can enter the bottle through the through hole 83, so that the liquid in the bottle is pushed into the liquid cavity by the air pressure and moves upwards.

The bottom of the pump core 8 is provided with a suction pipe, and a one-way valve is arranged between the suction pipe and the pump core 8.

The foregoing description of the preferred embodiments of the present utility model should not be construed as limiting the scope of the utility model, but rather should be understood to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the utility model as defined by the following description and drawings or any application directly or indirectly to other relevant art(s).

Claims

1. A valve for a foam pump, characterized by:

Including being annular valve body (6), valve body (6) top is equipped with bellied last collar (66) that makes progress, and valve body (6) bottom is equipped with bellied lower collar (65) down, the outward flange of valve body (6) is equipped with outer blade (61), and the inward flange of valve body (6) is equipped with interior blade (62), the edge of outer blade (61) and interior blade (62) is all crooked down, the valve is formed by thermoplastic elastomer moulding plastics.

2. A valve as defined in claim 1, wherein:

The valve is made of silica gel, rubber or elastomer.

3. A valve as claimed in claim 1 or claim 2, wherein:

The valve body (6) is provided with a plurality of first air inlets (63) distributed in an annular array, the number of the lower mounting rings is two, and the bottom of a circle of lower mounting rings (65) arranged outside is provided with a plurality of notches (64); the number of the upper mounting rings (66) is two, and the first air inlet holes (63) are arranged between the two upper mounting rings (66).

4. A foam pump comprising the valve body (6) as claimed in claim 3, characterized in that:

The top of valve body (6) is equipped with big piston (7), be equipped with a plurality of second inlet port (71) that are annular array and distribute on big piston (7), second inlet port (71), first inlet port (63) and breach (64) intercommunication and form the air inlet channel, go up collar (66) and big piston (7) sealing connection.

5. A foam pump as defined in claim 4, wherein:

The piston rod also comprises a piston rod (5), wherein an installation seat is arranged on the outer wall of the piston rod (5), and an inner ring groove (53) and a U-shaped groove (52) are arranged on the installation seat from inside to outside;

two of the lower mounting rings (65) extend into the inner ring groove (53) and the U-shaped groove (52), respectively;

The mounting seat is provided with a plurality of vent holes (51) which are distributed in an annular shape, and the vent holes (51) are arranged below the inner blades (62);

the outer blade (61) and the inner blade (62) are in downward sealing lap joint with the mounting seat.

6. A foam pump as defined in claim 5, wherein:

the second air inlet hole (71) is arc-shaped.

7. A foam pump as defined in claim 5, wherein:

The novel screw tooth socket is characterized by further comprising a screw tooth socket (1), wherein the top of the screw tooth socket (1) is slidably provided with a pressing head (2), a spring (3) is arranged between the pressing head (2) and the screw tooth socket (1), a net through (4) is arranged in the pressing head (2), the bottom of the screw tooth socket (1) is provided with a pump core (8), a piston rod (5) is slidably arranged in the pump core (8), the piston rod (5) is in transmission connection with the pressing head (2),

The pump core (8) is internally provided with an air cavity (81) below the mounting seat, the bottom end of the piston rod (5) is provided with a small piston (9), and the pump core (8) is internally provided with a liquid cavity (82) below the small piston (9).

8. A foam pump as defined in claim 7, wherein:

A through hole (83) is formed in one side of the pump core (8).

9. A foam pump as defined in claim 7, wherein:

The bottom of the pump core (8) is provided with a suction pipe, and a one-way valve is arranged between the suction pipe and the pump core (8).