CN213650516U

CN213650516U - Emulsion pump with suck-back structure

Info

Publication number: CN213650516U
Application number: CN202022633980.2U
Authority: CN
Inventors: 宋国宏
Original assignee: Longnan Keda Packaging Co ltd
Current assignee: Longnan Keda Packaging Co ltd
Priority date: 2020-11-13
Filing date: 2020-11-13
Publication date: 2021-07-09
Anticipated expiration: 2030-11-13

Abstract

The utility model discloses a lotion pump with a suck-back structure, in particular to the technical field of lotion pumps, which comprises a connecting cover, wherein a piston cylinder is fixed at the bottom of the connecting cover, the inside of the piston cylinder is movably connected with a piston plate in a sealing way, the top of the piston plate is communicated with a connecting pipe, the upper end of the connecting pipe movably penetrates through the piston cylinder and the connecting cover, a pressing head is fixed at the upper end of the connecting pipe, and a one-way valve mechanism is arranged at the bottom of the piston cylinder; the outer wall of the pressing head is provided with a pressing air bag, the bottom of the piston cylinder is communicated with an extension pipe, an annular groove is formed in the inner wall of the extension pipe, an annular air bag is arranged in the annular groove, and the pressing air bag is communicated with the annular air bag through a gas pipe. The utility model discloses rational in infrastructure, design benefit can avoid the emulsion to drip from the press head, is fit for using widely.

Description

Emulsion pump with suck-back structure

Technical Field

The utility model relates to a lotion pump technical field, more specifically say, the utility model relates to a lotion pump with resorption structure.

Background

The emulsion pump is a pump body structure used by manual pressing, and the pump body structure is widely applied to cosmetics and daily chemical products; at present, the domestic market has more and more requirements and styles for the use of bath and cosmetics. However, the existing emulsion pump products have few models, function requirements cannot be met, more technical requirements cannot be met, the product performance stability is low, stable quality of high-requirement packaging products is difficult to maintain, the sealing performance is poor, and leakage is easy to occur. After the emulsion pump is used each time, emulsion is easy to accumulate at the pressing head, and the emulsion is easy to drip from the pressing head, so that the emulsion is wasted and the floor is polluted.

Therefore, the utility model provides a lotion pump with suck-back structure.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the prior art, the utility model provides a lotion pump with a suck-back structure.

In order to achieve the above object, the utility model provides a following technical scheme: the emulsion pump with the suck-back structure comprises a connecting cover, wherein a piston cylinder is fixed at the bottom of the connecting cover, a piston plate is hermetically and movably connected inside the piston cylinder, the top of the piston plate is communicated with a connecting pipe, the upper end of the connecting pipe movably penetrates through the piston cylinder and the connecting cover, a pressing head is fixed at the upper end of the connecting pipe, and a one-way valve mechanism is arranged at the bottom of the piston cylinder;

the outer wall of the pressing head is provided with a pressing air bag, the bottom of the piston cylinder is communicated with an extension pipe, an annular groove is formed in the inner wall of the extension pipe, an annular air bag is arranged in the annular groove, and the pressing air bag is communicated with the annular air bag through a gas pipe.

Preferably, the check valve mechanism comprises a valve plate, the valve plate is horizontally fixed on the inner wall of the piston cylinder, a first spring piece is fixed in the middle of the valve plate, and a sealing ball is fixed at the lower end of the first spring piece.

Preferably, the middle part of the piston plate is provided with a liquid outlet hole, and the liquid outlet hole is communicated with the inside of the connecting pipe.

Preferably, a channel is arranged inside the pressing head and communicated with the inside of the connecting pipe.

Preferably, a second spring part is sleeved on a connecting pipe between the pressing head and the connecting cover, and an internal thread is arranged on the inner wall of the connecting cover.

Preferably, a third spring member is provided inside the pressing airbag.

The utility model discloses a technological effect and advantage:

1. the utility model discloses an install the pressing airbag on the outer wall of press head, the bottom intercommunication of piston cylinder has the extension pipe, be provided with the ring channel in the inner wall of extension pipe, be provided with annular airbag in the ring channel, through the gas-supply pipe intercommunication between pressing airbag and the annular airbag, after using the emulsion pump, namely after pressing the press head, press the airbag with the hand, make the gas in the pressing airbag get into in the annular airbag, plug up the inside runner of extension pipe after the inflation of annular airbag like this, then the press head begins to reset upwards under the effect of second spring part, in the in-process that resets, the piston board is upwards sealed motion, and then produce the negative pressure and can inhale the emulsion in the press head in the connecting pipe, avoid the emulsion to be in the press head, and then can avoid the emulsion to drip from the press head;

2. the utility model discloses rational in infrastructure, design benefit can avoid the emulsion to drip from the press head, is fit for using widely.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a partially enlarged view of a portion a in fig. 1 according to the present invention.

Fig. 3 is a partially enlarged view of a portion B in fig. 1 according to the present invention.

Reference numbers in the figures: 1. a connecting cover; 2. a piston cylinder; 3. a connecting pipe; 4. a pressing head; 5. a second spring member; 6. an extension pipe; 7. an annular air bag; 8. a gas delivery pipe; 9. pressing the air bag; 10. a third spring member; 11. a sealing ball; 12. a piston plate; 13. a valve plate; 14. a first spring member.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1-3, an emulsion pump with a suck-back structure according to an embodiment of the present invention includes a connection cover 1, a piston cylinder 2 is fixed at the bottom of the connection cover 1, a piston plate 12 is movably connected to the inside of the piston cylinder 2 in a sealing manner, the piston plate 12 is movably connected to the piston cylinder 2 in a sealing manner, so that reference can be made to a cylinder structure, the sealing performance is good, and emulsion leakage is effectively avoided, the top of the piston plate 12 is communicated with a connection pipe 3, the upper end of the connection pipe 3 movably penetrates through the piston cylinder 2 and the connection cover 1, a pressing head 4 is fixed at the upper end of the connection pipe 3, and a check valve mechanism is arranged at the bottom of the piston cylinder 2;

install on the outer wall of pressing head 4 and press gasbag 9, the bottom intercommunication of piston cylinder 2 has extension pipe 6, be provided with the annular groove in the inner wall of extension pipe 6, be provided with annular gasbag 7 in the annular groove, press through gas-supply pipe 8 intercommunication between gasbag 9 and the annular gasbag 7, when not pressing down gasbag 9, gas is in the inside of pressing gasbag 9, and annular gasbag 7 is flat pressure state this moment, can not plug up the runner in the extension pipe 6.

In a preferred embodiment, the one-way valve mechanism comprises a valve plate 13, the valve plate 13 is horizontally fixed on the inner wall of the piston cylinder 2, a first spring member 14 is fixed at the middle part of the valve plate 13, and a sealing ball 11 is fixed at the lower end of the first spring member 14.

In a preferred embodiment, the piston plate 12 is provided with outlet holes in the middle, which are in communication with the interior of the connecting tube 3.

In a preferred embodiment, the interior of the pressing head 4 is provided with a channel which communicates with the interior of the connecting tube 3.

In a preferred embodiment, a second spring element 5 is sleeved on the connecting tube 3 between the pressing head 4 and the connecting cover 1, and an internal thread is arranged on the inner wall of the connecting cover 1.

In a preferred embodiment, a third spring element 10 is arranged inside the pressing airbag 9, the third spring element 10 acting as a return element.

The utility model discloses a theory of operation: through installing the pressing gasbag 9 on the outer wall of the pressing head 4, the bottom of the piston cylinder 2 communicates with the extension pipe 6, there is an annular groove in the inner wall of the extension pipe 6, there is an annular gasbag 7 in the annular groove, the pressing gasbag 9 communicates with annular gasbag 7 through the gas-supply pipe 8, after using the emulsion pump, namely after pressing the pressing head 4, press the pressing gasbag 9 with the hand, make the gas in the pressing gasbag 9 enter the annular gasbag 7, thus the internal flow path of the extension pipe 6 is blocked after the annular gasbag 7 expands, then the pressing head 4 begins to reset upwards under the influence of the second spring part 5, in the course of resetting, the piston plate 12 moves upwards in a sealing way, and then produce the negative pressure and can suck the emulsion in the pressing head 4 into the connecting pipe 3, avoid the emulsion in the pressing head 4, and then can avoid the emulsion from dropping from the pressing head 4, the utility model has a reasonable structure, ingenious design can avoid the emulsion from dripping from the pressing head 4, and is suitable for popularization and use.

And finally: the above description is only for the preferred embodiment of the present invention and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The emulsion pump with the suck-back structure is characterized by comprising a connecting cover (1), wherein a piston cylinder (2) is fixed at the bottom of the connecting cover (1), a piston plate (12) is movably connected inside the piston cylinder (2) in a sealing manner, the top of the piston plate (12) is communicated with a connecting pipe (3), the upper end of the connecting pipe (3) movably penetrates through the piston cylinder (2) and the connecting cover (1), a pressing head (4) is fixed at the upper end of the connecting pipe (3), and a one-way valve mechanism is arranged at the bottom of the piston cylinder (2);

install on the outer wall of pressing head (4) and press gasbag (9), the bottom intercommunication of piston cylinder (2) has extension pipe (6), be provided with the ring channel in the inner wall of extension pipe (6), be provided with annular gasbag (7) in the ring channel, press through gas-supply pipe (8) intercommunication between gasbag (9) and the annular gasbag (7).

2. A lotion pump with suck-back structure according to claim 1, characterized in that said one-way valve mechanism comprises a valve plate (13), said valve plate (13) is horizontally fixed on the inner wall of the piston cylinder (2), a first spring member (14) is fixed in the middle of said valve plate (13), and a sealing ball (11) is fixed at the lower end of said first spring member (14).

3. A lotion pump with suck-back structure according to claim 1, wherein the piston plate (12) is provided with a liquid outlet at its middle, said liquid outlet being in communication with the interior of the connecting tube (3).

4. A lotion pump with suck-back structure according to claim 1, characterized in that the interior of said pressing head (4) is provided with a channel, said channel is communicated with the interior of the connecting tube (3).

5. A lotion pump with suck-back structure according to claim 1, characterized in that a second spring element (5) is sleeved on the connecting tube (3) between the pressing head (4) and the connecting cap (1), and an internal thread is provided on the inner wall of the connecting cap (1).

6. A lotion pump with a suck-back structure according to claim 1, wherein the pressing bladder (9) is internally provided with a third spring member (10).