CN216547297U - Emulsion pump with air exchange structure - Google Patents

Emulsion pump with air exchange structure Download PDF

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Publication number
CN216547297U
CN216547297U CN202123305543.9U CN202123305543U CN216547297U CN 216547297 U CN216547297 U CN 216547297U CN 202123305543 U CN202123305543 U CN 202123305543U CN 216547297 U CN216547297 U CN 216547297U
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CN
China
Prior art keywords
pump
piston
ventilation
rod
wall
Prior art date
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Active
Application number
CN202123305543.9U
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Chinese (zh)
Inventor
梁配辉
朱茂勇
张永雷
梁金考
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangdong Meijieshi Holdings Co ltd
Original Assignee
Zhongshan Majesty Packaging Systems Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zhongshan Majesty Packaging Systems Co Ltd filed Critical Zhongshan Majesty Packaging Systems Co Ltd
Priority to CN202123305543.9U priority Critical patent/CN216547297U/en
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Publication of CN216547297U publication Critical patent/CN216547297U/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1001—Piston pumps
    • B05B11/1023—Piston pumps having an outlet valve opened by deformation or displacement of the piston relative to its actuating stem
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1042—Components or details
    • B05B11/1073—Springs
    • B05B11/1074—Springs located outside pump chambers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1042—Components or details
    • B05B11/1043—Sealing or attachment arrangements between pump and container
    • B05B11/1046—Sealing or attachment arrangements between pump and container the pump chamber being arranged substantially coaxially to the neck of the container
    • B05B11/1047—Sealing or attachment arrangements between pump and container the pump chamber being arranged substantially coaxially to the neck of the container the pump being preassembled as an independent unit before being mounted on the container
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1042—Components or details
    • B05B11/105—Sealing arrangements around pump actuating stem
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1042—Components or details
    • B05B11/1059—Means for locking a pump or its actuation means in a fixed position
    • B05B11/106—Means for locking a pump or its actuation means in a fixed position in a retracted position, e.g. in an end-of-dispensing-stroke position

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  • Reciprocating Pumps (AREA)

Abstract

The utility model discloses an emulsion pump with a ventilation structure, which comprises a pump body provided with a pump chamber, wherein a screw tooth cover is fixed at the upper end of the pump body through a lock cover, a pump rod inserted into the lock cover and the pump chamber is arranged on the pump body, the upper end of the pump rod is connected with a bent nozzle, a spring is sleeved on the pump rod in the lock cover, the lower end of the pump rod is connected with a piston assembly, a pump ball is arranged at a liquid inlet at the lower end of the pump chamber, a ventilation opening is formed in the middle of the pump chamber, a ventilation piston capable of sliding up and down in the pump chamber is further arranged in the pump chamber, an upper limiting step is arranged above the ventilation opening in the inner wall of the pump chamber, and the ventilation piston is provided with a sealing outer wall matched with the inner wall of the pump chamber so as to seal and open the ventilation opening. The utility model can effectively prevent liquid in the bottle from entering the inner cavity of the pump body, can prevent the liquid from contacting with the spring to cause pollution, can prevent the leakage problem of the extruded finished product, and has simple structure and good ventilation effect.

Description

Emulsion pump with air exchange structure
[ technical field ] A
The utility model relates to an emulsion pump with a ventilation structure.
[ background ] A method for producing a semiconductor device
The emulsion pump is also called as a press type emulsion pump, and is a liquid distributor which utilizes the principle of atmospheric balance, pumps out feed liquid in a bottle by pressing and supplements external atmosphere into the bottle.
The emulsion pump is a daily article commonly used in life, for example, the emulsion pump is arranged on a shampoo bottle, a shower gel bottle and a liquid detergent bottle, and the emulsion pump pumps out the internal emulsion by directly pressing, so that the emulsion pump is convenient and practical and has wide application.
However, the existing emulsion pump has many parts, complex structure, great manufacturing difficulty and high production cost, and the air exchange is not smooth due to the defects of the design of the existing emulsion pump, thereby seriously affecting the use effect of the emulsion pump. Sometimes, leakage occurs. The user's demand cannot be satisfied.
Therefore, the existing emulsion pump is to be further improved.
[ summary of the utility model ]
The utility model aims to overcome the defects of the prior art and provides the lotion pump with the ventilation structure, which has a simple structure and a good ventilation effect and can effectively prevent the leakage problem of a finished product after being extruded.
The purpose of the utility model is realized as follows:
a lotion pump with a ventilation structure is characterized by comprising a pump body provided with a pump chamber, wherein a screw tooth cover is fixed at the upper end of the pump body through a lock cover, a pump rod inserted into the lock cover and the pump chamber is arranged on the pump body, the upper end of the pump rod is connected with a bent nozzle, a spring is sleeved on the pump rod in the lock cover, the lower end of the pump rod is connected with a piston assembly, a pump ball is arranged at a liquid inlet at the lower end of the pump chamber, a ventilation port is arranged in the middle of the pump chamber, the pump chamber is also internally provided with a ventilation piston which can slide up and down in the pump chamber, an upper limit step is arranged above a ventilation opening on the inner wall of the pump chamber, the ventilation piston is provided with a sealing outer wall which is matched with the inner wall of the pump chamber so as to seal and open the ventilation opening, the ventilation piston is provided with an annular convex edge which is matched and sealed with the upper limit step, the outer wall of the pump rod is provided with a pump rod convex ring, the air exchange piston is provided with an inner ring sleeve matched with the pump rod convex ring, and the air exchange piston is provided with an air exchange piston groove for inserting the locking cover.
The lotion pump with the air exchange structure is characterized in that the lower part of the inner ring sleeve of the air exchange piston is provided with a conical groove.
The lotion pump with the ventilation structure is characterized in that the bottom of the inner ring sleeve of the ventilation piston extends outwards to form a bottom wall of a groove of the ventilation piston, the outer side of the bottom wall of the groove of the ventilation piston extends upwards to form an outer ring sleeve, the inner ring sleeve, the bottom wall of the groove of the ventilation piston and the outer ring sleeve form a groove of the ventilation piston, the upper part of the outer ring sleeve extends outwards to form a step, the outer edge of the step extends upwards to form a sealing outer wall, and the annular convex edge is arranged on the upper part of the sealing outer wall.
The lotion pump with the air exchange structure is characterized in that the piston assembly comprises a sealing ring fixed at the lower part of the outer wall of the pump rod and a piston inserted into the outlet of the pump rod.
The lotion pump with the ventilation structure is characterized in that the sealing ring comprises an inner plug body, the inner plug body is sleeved on the pump rod, and an outer plug body capable of forming a seal with the inner wall of the pump chamber is arranged outside the inner plug body through an annular connecting piece.
The lotion pump with the ventilation structure is characterized in that the piston comprises a piston rod inserted into the pump rod, a piston groove is formed in the piston rod, the lower portion of the piston rod is connected with the conical connecting portion, and the lower portion of the conical connecting portion is connected with the sealing cover.
The emulsion pump with the ventilation structure is characterized in that the upper part of the pump rod is provided with the pump rod outer sleeve, the lower end of the lock cover is provided with the lock cover inner step, and the lower end of the pump rod outer sleeve is abutted to the lock cover inner step; the spring is arranged between the pump rod and the pump rod outer sleeve, and the lower part of the spring is propped against the step in the lock cover.
The lotion pump with the ventilation structure is characterized in that the lower end of the lock cover is provided with a lock cover lower connecting pipe inserted into the ventilation piston groove of the ventilation piston, the diameter of the lock cover lower connecting pipe is smaller than that of the lock cover, and the lock cover lower connecting pipe are of an integrated structure.
The utility model has the beneficial effects that:
in the locking state, the pump rod convex ring of the pump rod pushes against the inner ring sleeve of the air exchange piston, so that the air exchange piston is driven to move downwards until the annular convex edge of the air exchange piston is lower than the upper limiting step of the inner wall of the pump chamber, at the moment, the piston assembly seals the liquid inlet, the air exchange piston seals the air exchange port, liquid in a bottle can be effectively prevented from entering the inner cavity of the pump body, the pollution caused by the contact of the liquid and the spring can be avoided, and the problem of leakage of a finished product after extrusion can be prevented. Under the open state, the pump rod drives the piston assembly to move upwards, the piston assembly pushes the air exchange piston to move upwards, the air exchange piston does not seal the air exchange port any more, the air exchange port is opened to realize air exchange, the structure is simple, and the air exchange effect is good.
[ description of the drawings ]
FIG. 1 is a perspective view of the present invention;
FIG. 2 is an exploded view of the structure of the present invention;
FIG. 3 is a cross-sectional view of the present invention in a locked condition;
FIG. 4 is a cross-sectional view in another orientation of the present invention in a locked condition;
FIG. 5 is a cross-sectional view of the present invention in an open state;
FIG. 6 is a cross-sectional view in another orientation of the present invention in an open condition;
FIG. 7 is a perspective view of the scavenging piston of the present invention;
fig. 8 is a cross-sectional view of the scavenging piston of the present invention.
[ detailed description ] embodiments
The utility model will be further described with reference to the accompanying drawings in which:
a lotion pump with a ventilation structure comprises a pump body 1 provided with a pump chamber 10, the upper end of the pump body 1 is fixed with a screw tooth cover 11 through a lock cover 2, the pump body 1 is provided with a pump rod 3 inserted into the lock cover 2 and the pump chamber 10, the upper end of the pump rod 3 is connected with a bent nozzle 31, the pump rod 3 in the lock cover 2 is sleeved with a spring 32, the lower end of the pump rod 3 is connected with a piston assembly 4, a liquid inlet 12 at the lower end of the pump chamber 10 is provided with a pump bead 13, the middle part of the pump chamber 10 is provided with a ventilation port 5, the pump rod 3 is internally provided with a channel, the upper end of the channel is communicated with the bent nozzle 31, the lower end of the channel is communicated with the pump chamber 10, a ventilation piston 6 capable of sliding up and down in the pump chamber is also arranged in the pump chamber, an upper limit step 14 is arranged above a ventilation port on the inner wall of the pump chamber 10, the ventilation piston 6 is provided with an annular convex edge 61 matched and sealed with the upper limit step 14, the ventilation piston 6 is provided with a sealing outer wall 60 matched with the inner wall of the pump chamber so as to seal and open the ventilation port, the outer wall of the pump rod 3 is provided with a pump rod convex ring 33, the air exchange piston 6 is provided with an inner ring sleeve 62 matched with the pump rod convex ring 33, and the air exchange piston 6 is provided with an air exchange piston groove 63 for inserting the locking cover 2. As shown in fig. 3 and 4, in the locked state, the pump rod protruding ring 33 of the pump rod 3 pushes against the inner ring sleeve 62 of the scavenging piston 6, so as to drive the scavenging piston 6 to move downward until the annular protruding edge 61 of the scavenging piston 6 is lower than the upper limit step 14 of the inner wall of the pump chamber 10, at this time, the upper and lower collars of the piston assembly 4 seal the liquid inlet 12, and the scavenging piston 6 seals the scavenging port 5 at this time, so that the liquid in the bottle can be effectively prevented from entering the inner cavity of the pump body, thereby preventing the leakage problem after the finished product is squeezed. In the open state, as shown in fig. 4 and 5, the pump rod 3 drives the piston assembly 4 to move upward, the piston assembly 4 pushes the ventilation piston 6 to move upward, the ventilation piston 6 no longer seals the ventilation opening 5, and the ventilation opening 5 is opened to realize ventilation.
The lower part of the inner ring 62 of the scavenging piston 6 of the present invention is provided with a tapered groove 64. The bottom of the inner ring sleeve 62 of the scavenging piston 6 extends outwards to form a scavenging piston groove bottom wall 621, the outer side of the scavenging piston groove bottom wall 621 extends upwards to form an outer ring sleeve 622, the inner ring sleeve 62, the scavenging piston groove bottom wall 621 and the outer ring sleeve 622 form a scavenging piston groove 63, the upper part of the outer ring sleeve 622 extends outwards to form a step 623, the outer edge of the step 623 extends upwards to form a sealing outer wall 60, and the annular convex edge 61 is arranged on the upper part of the sealing outer wall 60.
The piston assembly 4 of the present invention includes a packing 42 fixed to a lower portion of an outer wall of the pump rod and a piston 43 inserted into an outlet of the pump rod 3. The sealing ring 42 comprises an inner plug body 421, the inner plug body 421 is sleeved on the pump rod 3, and an outer plug body 423 capable of forming sealing with the inner wall of the pump chamber is arranged outside the inner plug body 421 through an annular connecting piece 422.
The piston 43 of the present invention includes a piston rod 431 inserted into the pump rod 3, a piston groove 432 is provided on the piston rod 431, a tapered connection portion 433 is connected to a lower portion of the piston rod 431, and a sealing cover 434 is connected to a lower portion of the tapered connection portion 433.
The upper part of a pump rod 3 is provided with a pump rod outer sleeve 34, the lower end of a lock cover 2 is provided with a lock cover inner step 21, and the lower end of the pump rod outer sleeve 34 is abutted against the lock cover inner step 21; the spring 32 is provided between the pump rod 3 and the pump rod outer sleeve 34, and the lower portion thereof abuts against the lock cover inner step 21.
The lower end of the locking cap 2 of the utility model is provided with a locking cap lower connecting pipe 22 inserted into the ventilation piston groove 63 of the ventilation piston, and the diameter of the locking cap lower connecting pipe 22 is smaller than that of the locking cap. The locking cap 2 and the locking cap lower connecting pipe 22 are of an integral structure.

Claims (8)

1. The lotion pump with the ventilation structure is characterized by comprising a pump body (1) provided with a pump chamber (10), wherein a thread cover (11) is fixed at the upper end of the pump body (1) through a lock cover (2), a pump rod (3) inserted into the lock cover (2) and the pump chamber (10) is arranged on the pump body (1), the upper end of the pump rod (3) is connected with a bent nozzle (31), a spring (32) is sleeved on the pump rod (3) in the lock cover (2), the lower end of the pump rod (3) is connected with a piston assembly (4), a pump bead (13) is arranged on a liquid inlet (12) at the lower end of the pump chamber (10), a ventilation opening (5) is arranged in the middle of the pump chamber (10), a ventilation piston (6) capable of sliding up and down in the pump chamber is further arranged in the pump chamber, an upper limit step (14) is arranged above the ventilation opening on the inner wall of the pump chamber (10), the ventilation piston (6) is provided with a seal (60) which can be matched with the inner wall of the pump chamber so as to seal and open the ventilation opening, piston (6) take a breath is equipped with last spacing step (14) cooperation sealed annular chimb (61), pump pole (3) outer wall is equipped with pump pole bulge loop (33), and piston (6) take a breath is equipped with pump pole bulge loop (33) complex inner ring cover (62), and piston (6) take a breath is equipped with and supplies locking closure (2) male piston recess (63) take a breath.
2. A lotion pump with a ventilating structure according to claim 1, characterized in that the lower part of the inner ring sleeve (62) of the ventilating piston (6) is provided with a tapered groove (64).
3. The lotion pump with the ventilation structure as claimed in claim 1, wherein the bottom of the inner ring sleeve (62) of the ventilation piston (6) extends outwards to form a ventilation piston groove bottom wall (621), the outer side of the ventilation piston groove bottom wall (621) extends upwards to form an outer ring sleeve (622), the inner ring sleeve (62), the ventilation piston groove bottom wall (621) and the outer ring sleeve (622) form a ventilation piston groove (63), the upper part of the outer ring sleeve (622) extends outwards to form a step (623), the outer edge of the step (623) extends upwards to form a sealing outer wall (60), and the annular convex edge (61) is arranged on the upper part of the sealing outer wall (60).
4. A lotion pump with air exchange structure according to claim 1, wherein the piston assembly (4) comprises a sealing ring (42) fixed to the lower portion of the outer wall of the pump rod and a piston (43) inserted into the outlet of the pump rod (3).
5. A lotion pump with a ventilation structure according to claim 4, characterized in that the sealing ring (42) comprises an inner plug body (421), the inner plug body (421) is sleeved on the pump rod (3), and an outer plug body (423) capable of forming a seal with the inner wall of the pump chamber is arranged outside the inner plug body (421) through an annular connecting member (422).
6. An emulsion pump with a ventilation structure as claimed in claim 4, wherein the piston (43) comprises a piston rod (431) inserted into the pump rod (3), the piston rod (431) is provided with a piston groove (432), the lower part of the piston rod (431) is connected with a conical connecting part (433), and the lower part of the conical connecting part (433) is connected with a sealing cover (434).
7. An emulsion pump with a ventilation structure as claimed in claim 1, wherein the upper part of the pump rod (3) is provided with a pump rod outer sleeve (34), the lower end of the lock cover (2) is provided with a lock cover inner step (21), and the lower end of the pump rod outer sleeve (34) is abutted against the lock cover inner step (21); the spring (32) is arranged between the pump rod (3) and the pump rod outer sleeve (34), and the lower part of the spring is abutted against the inner step (21) of the lock cover.
8. A lotion pump with ventilation structure according to claim 1, wherein the lower end of the locking cap (2) is provided with a locking cap lower connecting tube (22) inserted into the ventilation piston groove (63) of the ventilation piston, the diameter of the locking cap lower connecting tube (22) is smaller than that of the locking cap, and the locking cap (2) and the locking cap lower connecting tube (22) are of an integral structure.
CN202123305543.9U 2021-12-24 2021-12-24 Emulsion pump with air exchange structure Active CN216547297U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202123305543.9U CN216547297U (en) 2021-12-24 2021-12-24 Emulsion pump with air exchange structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202123305543.9U CN216547297U (en) 2021-12-24 2021-12-24 Emulsion pump with air exchange structure

Publications (1)

Publication Number Publication Date
CN216547297U true CN216547297U (en) 2022-05-17

Family

ID=81556642

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202123305543.9U Active CN216547297U (en) 2021-12-24 2021-12-24 Emulsion pump with air exchange structure

Country Status (1)

Country Link
CN (1) CN216547297U (en)

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GR01 Patent grant
GR01 Patent grant
CP03 Change of name, title or address

Address after: No.21 Jiankang Road, Torch Development Zone, Zhongshan City, Guangdong Province 528437

Patentee after: Guangdong Meijieshi Holdings Co.,Ltd.

Address before: No.21 Jiankang Road, Torch Development Zone, Zhongshan City, Guangdong Province 528437

Patentee before: MAJESTY PACKAGING SYSTEMS Ltd.

CP03 Change of name, title or address