WO2024087707A1

WO2024087707A1 - Pressing pump capable of self-rotating locking and unlocking

Info

Publication number: WO2024087707A1
Application number: PCT/CN2023/103972
Authority: WO
Inventors: 林添大; 莫恒进
Original assignee: 中山市联昌喷雾泵有限公司
Priority date: 2022-10-27
Filing date: 2023-06-29
Publication date: 2024-05-02
Also published as: CN115593790A

Abstract

A pressing pump capable of self-rotating locking and unlocking, comprising a closure (1), an actuator (2), a stem (3), a sub-stem (4), a piston (5), a body (6), a chaplet (7), a spring (8), and a glass ball (9). The body comprises a flange (61), a chaplet cavity (62), a piston cavity (63), a one-way valve seat (65), and a dip tube interface (66); the stem comprises a lower connecting cavity (31), a liquid outlet channel (32), and driving teeth (33); the pressing pump further comprises a driving pipe fitting (10), and the driving pipe fitting comprises a pipe body (101), a guide stop cavity (102), a ratchet (103), and guide locking blocks (104); the sub-stem is connected to the lower connecting cavity, the stem is inserted into and is in sliding fit with the guide stop cavity of the driving pipe fitting, and the driving teeth are meshed with the ratchet; the upper end of the stem is connected to the liquid outlet channel; in an unlocked state, the guide locking blocks and the driving teeth are in sliding fit with axial guide grooves (714), and in a locked state, the guide locking blocks fit locking notches (7132). The chaplet and the stem use the structure, the driving pipe fitting is provided, the actuator is pressed and then loosened, and under the action of the spring, the driving teeth of the stem enable the driving pipe fitting and the actuator to rotate, so that automatic locking and unlocking are achieved, and the operation is convenient.

Description

A self-rotating locking and unlocking press pump

Technical Field

The invention relates to a compression pump.

Background technique

The current existing technical literature, Chinese patent 201510659510.4 discloses a lotion pump with an improved push head and a locking cover, including a push head, a locking cover, a screw thread, a body, a main column, a secondary column, a piston, a spring and a glass ball. The push head includes a base, a liquid outlet and a liquid inlet channel, and the liquid inlet channel is connected to the liquid outlet; the locking cover includes a guide sleeve located in the center and an internal thread interface surrounding the guide sleeve; the upper end of the body passes through the screw thread and is screwed with the internal thread interface of the locking cover, the liquid inlet channel of the push head is connected and communicated with the upper end of the main column, and the push head and the locking cover are detachably connected; the push head is provided with a locking device; the guide sleeve of the locking cover has a single-head internal thread, and the locking device and the guide sleeve are screwed. The problem is that when locking or unlocking, the push head needs to be rotated, and the main column and the secondary column rotate with the push head to achieve unlocking and locking, which requires many actions and is inconvenient to operate.

Summary of the invention

The purpose of the present invention is to provide a self-rotating locking and unlocking pressing pump, which has the characteristics of pressing a button head, releasing, and automatically unlocking and locking.

The present invention is implemented as follows: a self-rotating locking and unlocking pressing pump comprises a screw thread, a pressing head, a main column, a secondary column, a piston, a body, a locking cover, a spring and a glass ball, wherein the piston is arranged on the piston position of the secondary column; the special feature of the present invention is that the pressing head comprises a liquid inlet pipe and a liquid outlet channel, and a through hole is arranged on the top plate of the screw thread;

The body comprises a flange, a lock cover cavity, a piston cavity, a one-way valve seat and a suction pipe interface;

The lock cover comprises a cylindrical seat and an annular fixed seat, the cylindrical seat comprises a guide cavity, a locking cavity and a plurality of driven teeth arranged in the locking cavity, the lower end of the driven tooth is provided with a left-handed or right-handed surface, and the lower end of the driven tooth is provided with a locking notch; there is a height difference between the lower end of the driven tooth and the lower end surface of the locking cavity, and the gap between two adjacent driven teeth constitutes an axial guide groove;

The main column includes a lower connecting cavity, a liquid outlet channel and a driving tooth surrounding the lower end of the main column, and the upper end of the driving tooth is arranged on the left-handed surface or the right-handed surface;

It also includes a driving pipe fitting, which includes a pipe body, a ratchet wheel and a guide locking block arranged at the lower end of the pipe body;

The auxiliary column is connected to the lower connecting cavity, the main column is inserted into the guide stop cavity of the driving pipe and slides together, and the active teeth are meshed with the ratchet; the upper end of the main column is connected to the liquid outlet channel; in the unlocked state, the guide locking block and the active teeth slide together with the axial guide groove; in the locked state, the guide locking block cooperates with the locking notch.

The self-rotating locking and unlocking pressing pump is special in that: an annular groove is provided at the lower part of the locking cover cavity of the main body; an annular protrusion is provided on the outer circumferential surface of the annular fixing seat of the locking cover, and the annular protrusion is embedded in the annular groove.

The self-rotating locking and unlocking pressing pump is special in that: an annular protrusion is provided on the upper end of the secondary column, and an annular groove is provided on the lower connecting cavity, and the annular protrusion is embedded in the annular groove.

The self-rotating locking and unlocking pressing pump is special in that the lower end of the cylindrical seat of the locking cover cooperates with the piston to stop.

The self-rotating locking and unlocking pressing pump is special in that: the pressing head is provided with a sleeve surrounding the liquid inlet channel;

The sleeve is slidably matched with the through hole of the threaded tooth.

The present invention provides a self-rotating locking and unlocking pressing pump, wherein the locking cover and the main column adopt such a structure and the arrangement of the driving pipe fitting; after the pressing head is pressed and released, the active teeth of the main column rotate the driving pipe fitting and the pressing head under the action of the spring, thereby realizing automatic locking and unlocking, and the operation is convenient.

BRIEF DESCRIPTION OF THE DRAWINGS

Fig. 1 is a cross-sectional view of the present invention;

Fig. 2 is one of the three-dimensional exploded views of the present invention;

FIG3 is a second exploded perspective view of the present invention;

Fig. 4 is a plan exploded view of the present invention;

Fig. 5 is a cross-sectional view of the present invention;

FIG. 6 is a perspective cross-sectional view of the present invention.

Detailed ways

Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

As shown in Fig. 1 and Fig. 2, a self-rotating locking and unlocking pressing pump comprises a screw thread 1, a pressing head 2, a main column 3, a secondary column 4, a piston 5, a main body 6 with an upper opening, a locking cover 7, a spring 8 and a glass ball 9, wherein the piston 5 is arranged on the piston position of the secondary column 4; the pressing head 2 comprises a liquid inlet pipe 21 and a liquid outlet channel 22, and a through hole 1A is arranged on the top plate of the screw thread 1;

The body 6 includes a flange 61, a lock cover cavity 62, a piston cavity 63, a spring seat 64, a one-way valve seat 65 and a straw interface 66.

The lock cover 7 includes a cylindrical seat 71 and an annular fixed seat 72. The cylindrical seat 71 includes a guide cavity 711, a locking cavity 712 and a device A plurality of driven teeth 713 in the locking cavity 712 are provided with a left-handed or right-handed surface 7131 at the lower end of the driven teeth 713, and a locking notch 7132 is provided at one end of the left-handed or right-handed surface at the lower end of the driven teeth 713; there is a height difference H between the lower end of the driven teeth 713 and the lower end surface of the locking cavity 712, and the gap between two adjacent driven teeth 713 forms an axial guide groove 714;

The main column 3 includes a lower connecting cavity 31, a liquid outlet channel 32 and a driving tooth 33 surrounding the lower end of the main column 3, and the upper end of the driving tooth 33 is arranged on the left-handed surface or the right-handed surface;

The driving pipe 10 includes a pipe body 101, a guide stop cavity 102 disposed in the lower part of the pipe body, a ratchet 103 disposed at the lower end of the pipe body, and a guide locking block 104, wherein the ratchet 103 is a plurality of evenly distributed ratchet teeth disposed at the lower end of the pipe body;

The glass ball 9 is arranged on the one-way valve seat 65, the lower end of the spring 8 is arranged on the spring seat 64, and the upper end of the spring 8 is matched with the lower end of the auxiliary column 4; the upper end of the auxiliary column 4 is connected to the lower connecting cavity 31, the main column 3 is inserted into the guide stop cavity 102 of the tube body of the driving pipe 10 and slides together, and the active tooth 33 is meshed with the ratchet 103; the upper end of the main column 3 is connected to the liquid outlet channel 32; in the unlocked state, the guide locking block 104 and the active tooth 33 are slidably matched with the axial guide groove 714, and the active tooth 33 is meshed with the ratchet 103; in the locked state, the guide locking block 104 is matched with the locking notch 7132, and the active tooth 33 is meshed with the ratchet 103;

The number of guide locking blocks 104 , driving teeth 33 , driven teeth 713 and axial guide grooves 714 is equal.

As a further improvement of the present invention: an annular groove 621 is provided at the lower part of the lock cover cavity 62 of the body 6; an annular protrusion 721 is provided on the outer circumferential surface of the annular fixing seat 72 of the lock cover 7, and the annular protrusion 721 is embedded in the annular groove 621.

The upper end of the secondary column 4 is provided with an interface, and the interface is provided with an annular protrusion 41. The lower connecting cavity 31 is provided with an annular groove. The interface is inserted into the lower connecting cavity 31, and the annular protrusion 41 is embedded in the annular groove.

As a further improvement of the present invention: the lower end of the cylindrical seat 71 of the locking cover 7 cooperates with the piston 5 to stop.

The pressing head 2 is provided with a sleeve 23 surrounding the liquid inlet channel 21.

The sleeve 23 is slidably matched with the through hole 1A of the screw thread 1 , and is engaged with the lock cover cavity 62 of the body 6 in an inward and outward manner.

FIG1 is a cross-sectional view of the unlocked state of the present invention. In the unlocked state, the push head 1 is pressed, the push head 1, the driving pipe 10, the main column 3, the auxiliary column 4 and the piston 5 move downward, and the guide locking block 104 and the driving tooth 33 move up and down in the axial guide groove 714, which is in the unlocked working state. During the up and down movement, the liquid is pumped out;

When the left-handed surface at the lower end of the driven tooth 713 and the driving tooth 33 are left-handed surfaces, they rotate clockwise during use; when the right-handed surface at the lower end of the driven tooth 713 and the driving tooth 33 are right-handed surfaces, they rotate counterclockwise during use;

In the state of Figure 1, the pressing head 1 is pressed, and the pressing head 1, the driving pipe 10, the main column 3, the auxiliary column 4 and the piston 5 move downward, and the guide locking block 104 is located below the lower end of the driven tooth 713; the pressing head 1 loses pressure, and under the action of the spring 8, the pressing head 1, the driving pipe 10, the main column 3, the auxiliary column 4 and the piston 5 move upward, the active tooth 33 acts on the ratchet 103, the driving pipe 10 and the pressing head 1 rotate clockwise together, and the guide locking block 104 enters the locking notch 7132 of the driven tooth 713 from the axial guide groove 714 to achieve automatic locking.

In the locked state, the push head 1 is pressed, and the push head 1, the driving pipe 10, the main column 3, the auxiliary column 4 and the piston 5 move downward; the push head 1 loses pressure, and under the action of the spring 8, the push head 1, the driving pipe 10, the main column 3, the auxiliary column 4 and the piston 5 move upward, the active tooth 33 acts on the ratchet 103, the driving pipe 10 and the push head 1 rotate clockwise together, and the guide locking block 104 enters the axial guide groove 714 through the locking notch 7132 of the driven tooth 713 and the other end of the driven tooth 713 to achieve unlocking.

Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

A self-rotating locking and unlocking pressing pump comprises a screw thread, a pressing head, a main column, a secondary column, a piston, a body, a locking cover, a spring and a glass ball, wherein the piston is arranged on the piston position of the secondary column; the characteristic is that the pressing head comprises a liquid inlet pipe and a liquid outlet channel, and a through hole is arranged on the top plate of the screw thread;

The body comprises a flange, a lock cover cavity, a piston cavity, a one-way valve seat and a suction pipe interface;

The lock cover comprises a cylindrical seat and an annular fixed seat, the cylindrical seat comprises a guide cavity, a locking cavity and a plurality of driven teeth arranged in the locking cavity, the lower end of the driven tooth is provided with a left-handed or right-handed surface, and the lower end of the driven tooth is provided with a locking notch; there is a height difference between the lower end of the driven tooth and the lower end surface of the locking cavity, and the gap between two adjacent driven teeth constitutes an axial guide groove;

The main column includes a lower connecting cavity, a liquid outlet channel and a driving tooth surrounding the lower end of the main column, and the upper end of the driving tooth is arranged on the left-handed surface or the right-handed surface;

It also includes a driving pipe, which includes a pipe body, a guide stop cavity arranged in the lower part of the pipe body, a ratchet wheel and a guide locking block arranged at the lower end of the pipe body;

The auxiliary column is connected to the lower connecting cavity, the main column is inserted into the guide stop cavity of the driving pipe and slides together, and the active teeth are meshed with the ratchet; the upper end of the main column is connected to the liquid outlet channel; in the unlocked state, the guide locking block and the active teeth slide together with the axial guide groove; in the locked state, the guide locking block cooperates with the locking notch.
The self-rotating locking and unlocking pressing pump according to claim 1 is characterized in that: an annular groove is provided at the lower part of the lock cover cavity of the main body; an annular protrusion is provided on the outer circumferential surface of the annular fixing seat of the lock cover, and the annular protrusion is engaged with the annular groove.
The self-rotating locking and unlocking pressing pump according to claim 1 is characterized in that: an annular protrusion is provided on the upper end of the secondary column, and an annular groove is provided on the lower connecting cavity, and the annular protrusion is embedded in the annular groove.
The self-rotating locking and unlocking pressing pump according to claim 1 is characterized in that the lower end of the cylindrical seat of the locking cover cooperates with the piston to stop.
The self-rotating locking and unlocking press pump according to claim 1, 2, 3 or 4, characterized in that: the press head is provided with a sleeve surrounding the liquid inlet channel;

The sleeve is slidably matched with the through hole of the threaded tooth.