A press pump with self-rotating locking and unlocking

Abstract

A pressing pump with self-rotating locking and unlocking functions, comprising 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. The body includes a flange, a locking cover cavity, a piston cavity, a one-way valve seat and a straw interface. The main column includes a lower connection cavity, a liquid outlet channel and a driving tooth. It also includes a driving pipe fitting, which includes a pipe body, a guiding and positioning cavity, a ratchet wheel and a guiding locking block. The secondary column is connected to the lower connection cavity. The main column is inserted into the guiding and positioning cavity of the driving pipe fitting and is in sliding fit. The driving tooth and the ratchet wheel are engaged. The upper end of the main column is connected to the liquid outlet channel. In the unlocked state, the guiding locking block and the driving tooth are in sliding fit with the axial guiding groove. In the locked state, the guiding locking block is engaged with the locking notch. With such a structure of the locking cover and the main column and the setting of the driving pipe fitting, after pressing and releasing the pressing head, under the action of the spring, the driving tooth of the main column causes the driving pipe fitting and the pressing head to rotate, realizing automatic locking and unlocking, which is convenient to operate.

Description

Technical Field

[0001] The present invention relates to a pressing pump. Background Art

[0002] In the current prior art, Chinese Patent No. 201510659510.4, an emulsion pump with an improved locking of the pressing head and the locking cap, includes a pressing head, a locking cap, a screw thread, a body, a main column, a sub-column, a piston, a spring and a glass ball. The pressing head includes a base, a liquid outlet nozzle and a liquid inlet channel, and the liquid inlet channel is communicated with the liquid outlet nozzle; the locking cap includes a guiding sleeve located at the center and an internal thread interface surrounding the guiding sleeve; the upper end of the body passes through the screw thread and is screwed with the internal thread interface of the locking cap, and the liquid inlet channel of the pressing head is connected and communicated with the upper end of the main column, and the pressing head and the locking cap are detachably connected; a locking device is arranged on the pressing head; the guiding sleeve of the locking cap has a single-start internal thread, and the locking device is screwed with the guiding sleeve. The problem is that when locking or unlocking, it is necessary to rotate the pressing head, and the main column and the sub-column rotate with the pressing head to achieve unlocking and locking, with many actions and inconvenient operation. Summary of the Invention

[0003] The object of the present invention is to provide a pressing pump with self-rotating locking and unlocking, which has the characteristics of pressing the pressing head and loosening, and automatically unlocking and locking.

[0004] The present invention is realized as follows: a pressing pump with self-rotating locking and unlocking, including a screw thread, a pressing head, a main column, a sub-column, a piston, a body, a locking cap, a spring and a glass ball, and the piston is arranged at the piston position of the sub-column; the special feature is that: the pressing head includes a liquid inlet pipe and a liquid outlet channel, and a through hole is arranged on the top plate of the screw thread;

[0005] The body includes a flange, a locking cap cavity, a piston cavity, a one-way valve seat and a straw interface,

[0006] The locking cap includes a cylindrical seat and an annular fixed seat. The cylindrical seat includes a guiding cavity part, a locking cavity and a plurality of driven teeth arranged in the locking cavity. The lower end of the driven teeth is provided with a left-handed or right-handed surface, and the lower end of the driven teeth is provided with a locking notch; there is a height difference between the lower end of the driven teeth and the lower end surface of the locking cavity, and the gap between two adjacent driven teeth forms an axial guiding groove;

[0007] The main column includes a lower connection 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;

[0008] It further includes a driving pipe fitting, and the driving pipe fitting includes a pipe body, a ratchet wheel arranged at the lower end of the pipe body and a guiding locking block;

[0009] The secondary column is connected to the lower connection cavity. The main column is inserted into the guiding and positioning cavity of the driving pipe fitting and is in sliding fit. The driving gear engages with the ratchet wheel. The upper end of the main column is connected to the liquid outlet channel. In the unlocked state, the guiding locking block and the driving gear are in sliding fit with the axial guiding groove. In the locked state, the guiding locking block engages with the locking notch.

[0010] For the described self-rotating locking and unlocking pressing pump, its special feature lies in that: a circular groove is provided at the lower part of the locking cover cavity of the body; a circular protrusion is provided on the outer circumferential surface of the circular fixing seat of the locking cover, and the circular protrusion is fitted into the circular groove.

[0011] For the described self-rotating locking and unlocking pressing pump, its special feature lies in that: a circular protrusion is provided at the upper end of the secondary column, and a circular groove is provided on the lower connection cavity, and the circular protrusion is fitted into the circular groove.

[0012] For the described self-rotating locking and unlocking pressing pump, its special feature lies in that: the lower end of the cylindrical seat of the locking cover is in cooperation with the piston for positioning.

[0013] For the described self-rotating locking and unlocking pressing pump, its special feature lies in that: a sleeve surrounding the liquid inlet channel is provided on the pressing head,

[0014] The sleeve is in sliding fit with the through hole of the screw thread.

[0015] For the self-rotating locking and unlocking pressing pump of the present invention, the locking cover and the main column adopt such structures and the setting of the driving pipe fitting; after pressing and releasing the pressing head, due to the action of the spring, the driving gear of the main column rotates the driving pipe fitting and the pressing head, realizing automatic locking and unlocking, and the operation is convenient. Brief Description of the Drawings

[0016] Figure 1 is a sectional view of the present invention.

[0017] Figure 2 is one of the three-dimensional exploded views of the present invention.

[0018] Figure 3 is the second three-dimensional exploded view of the present invention.

[0019] Figure 4 is the planar exploded view of the present invention.

[0020] Figure 5 is a sectional view of the present invention.

[0021] Figure 6 is the three-dimensional sectional view of the present invention. Detailed Description of the Invention

[0022] Embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where like or similar reference numerals denote like or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation of the present invention.

[0023] As Figure 1 、 Figure 2 shown, a pressing pump with self-rotating locking and unlocking includes a screw thread 1, a pressing head 2, a main column 3, a secondary column 4, a piston 5, an upper-opening body 6, a locking cover 7, a spring 8, and a glass ball 9. The piston 5 is arranged at the piston position of the secondary column 4. The pressing head 2 includes a liquid inlet pipe 21 and a liquid outlet channel 22, and a through hole 1A is provided on the top plate of the screw thread 1.

[0024] The body 6 includes a flange 61, a locking cover cavity 62, a piston cavity 63, a spring seat 64, a one-way valve seat 65, and a straw interface 66.

[0025] The locking cover 7 includes a cylindrical seat 71 and an annular fixing seat 72. The cylindrical seat 71 includes a guiding cavity portion 711, a locking cavity 712, and a plurality of driven teeth 713 arranged in the locking cavity 712. The lower end of the driven tooth 713 is provided with a left-handed or right-handed surface 7131, 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 tooth 713. There is a height difference H between the lower end of the driven tooth 713 and the lower end surface of the locking cavity 712, and the gap between two adjacent driven teeth 713 forms an axial guiding groove 714.

[0026] The main column 3 includes a lower connection cavity 31, a liquid outlet channel 32, and a driving tooth 33 surrounding the lower end of the main column 3. The upper end of the driving tooth 33 is arranged on the left-handed surface or the right-handed surface.

[0027] It further includes a driving pipe fitting 10. The driving pipe fitting 10 includes a pipe body 101, a guiding and stopping cavity 102 arranged inside the lower part of the pipe body, a ratchet 103 arranged at the lower end of the pipe body, and a guiding locking block 104. The ratchet 103 is several uniformly distributed ratchet teeth arranged at the lower end of the pipe body.

[0028] 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 secondary column 4. The upper end of the secondary column 4 is connected to the lower connection cavity 31. The main column 3 is inserted into the guiding and stopping cavity 102 of the pipe body of the driving pipe fitting 10 and is in sliding fit. The driving tooth 33 is engaged 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 guiding locking block 104 and the driving tooth 33 are in sliding fit with the axial guiding groove 714, and the driving tooth 33 is engaged with the ratchet 103. In the locked state, the guiding locking block 104 is matched with the locking notch 7132, and the driving tooth 33 is engaged with the ratchet 103.

[0029] The number of the guiding locking blocks 104, the driving gears 33, the driven gears 713 and the axial guiding grooves 714 are equal.

[0030] As a further improvement of the present invention: a circular groove 621 is provided at the lower part of the locking cover cavity 62 of the body 6; a circular protrusion 721 is provided on the outer circumferential surface of the circular fixing seat 72 of the locking cover 7, and the circular protrusion 721 is engaged with the circular groove 621.

[0031] An interface is provided at the upper end of the auxiliary column 4, a circular protrusion 41 is provided on the interface, a circular groove is provided on the lower connection cavity 31, the interface is inserted into the lower connection cavity 31, and the circular protrusion 41 is engaged with the circular groove.

[0032] As a further improvement of the present invention: the lower end of the cylindrical seat 71 of the locking cover 7 is in stop cooperation with the piston 5.

[0033] A sleeve 23 surrounding the liquid inlet channel 21 is provided on the pressing head 2.

[0034] The sleeve 23 is in sliding cooperation with the through hole 1A of the thread 1 and is in inlet and outlet cooperation with the locking cover cavity 62 of the body 6.

[0035] Figure 1 It is a cross-sectional view of the unlocking state of the present invention. In the unlocking state, when the pressing head 1 is pressed, the pressing head 1, the driving pipe fitting 10, the main column 3, the auxiliary column 4 and the piston 5 move downward, and the guiding locking block 104 and the driving gear 33 move up and down in the axial guiding groove 714, and are in the unlocking working state. During the up and down movement, liquid is pumped out.

[0036] When the left-handed surface at the lower end of the driven gear 713 and the driving gear 33 are left-handed surfaces, during use, it rotates clockwise; when the right-handed surface at the lower end of the driven gear 713 and the driving gear 33 are right-handed surfaces, during use, it rotates counterclockwise.

[0037] In Figure 1 In this state, when the pressing head 1 is pressed, the pressing head 1, the driving pipe fitting 10, the main column 3, the auxiliary column 4 and the piston 5 move downward, and the guiding locking block 104 is located below the lower end of the driven gear 713; when the pressure on the pressing head 1 is lost, under the action of the spring 8, the pressing head 1, the driving pipe fitting 10, the main column 3, the auxiliary column 4 and the piston 5 move upward, the driving gear 33 acts on the ratchet 103, the driving pipe fitting 10 and the pressing head 1 rotate clockwise together, and the guiding locking block 104 enters the locking notch 7132 of the driven gear 713 from the axial guiding groove 714 to realize automatic locking.

[0038] In the locked state, when the push head 1 is pressed, the push head 1, the driving pipe fitting 10, the main column 3, the auxiliary column 4 and the piston 5 move downward; when the pressure on the push head 1 is removed, under the action of the spring 8, the push head 1, the driving pipe fitting 10, the main column 3, the auxiliary column 4 and the piston 5 move upward, the driving gear 33 acts on the ratchet wheel 103, and the driving pipe fitting 10 and the push head 1 rotate clockwise together, and the guiding locking block 104 enters the axial guiding groove 714 from the locking notch 7132 of the driven gear 713 and the other end of the driven gear 713 to achieve unlocking.

[0039] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A pressing pump with self-rotating locking and unlocking, comprising 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 at the piston position of the secondary column; characterized in that: The pressing head includes a liquid inlet pipe and a liquid outlet channel, and a through hole is provided on the top plate of the screw thread. The body includes a flange, a lock cover cavity, a piston cavity, a one-way valve seat, and a straw interface. The lock cover includes a cylindrical seat and an annular fixed seat. The cylindrical seat includes a guiding cavity part, a locking cavity, and a plurality of driven teeth provided in the locking cavity. The lower end of the driven teeth is provided with a left-handed or right-handed surface, and a locking notch is provided at the lower end of the driven teeth. There is a height difference between the lower end of the driven teeth and the lower end surface of the locking cavity, and the gap between two adjacent driven teeth forms an axial guiding groove. The main column includes a lower connection cavity, a liquid outlet channel, and a driving tooth surrounding the lower end of the main column. The upper end of the driving tooth is provided on a left-handed surface or a right-handed surface. It further includes a driving pipe fitting. The driving pipe fitting includes a pipe body, a guiding and positioning cavity provided inside the lower part of the pipe body, a ratchet provided at the lower end of the pipe body, and a guiding and locking block. The auxiliary column is connected to the lower connection cavity. The main column is inserted into the guiding and positioning cavity of the driving pipe fitting and is in sliding fit. The driving tooth is engaged with the ratchet. The upper end of the main column is connected to the liquid outlet channel. In the unlocked state, the guiding and locking block and the driving tooth are in sliding fit with the axial guiding groove. In the locked state, the guiding and locking block is engaged with the locking notch.

2. The pressing pump with self-rotating locking and unlocking according to claim 1, wherein: A circular clamping groove is provided at the lower part of the lock cover cavity of the body. An annular protrusion is provided on the outer circumferential surface of the annular fixed seat of the lock cover, and the annular protrusion is fitted with the circular clamping groove.

3. The press pump with self-rotating locking and unlocking according to claim 1, characterized in that: An annular protrusion is provided at the upper end of the auxiliary column, and an annular groove is provided on the lower connection cavity. The annular protrusion is fitted with the annular groove.

4. The press pump with self-rotating locking and unlocking according to claim 1, wherein: The lower end of the cylindrical seat of the lock cover is in mating stop with the piston.

5. A pressing pump with self-rotating locking and unlocking, according to claim 1, 2, 3 or 4, characterized in that: A sleeve surrounding the liquid inlet channel is provided on the pressing head. The sleeve is in sliding fit with the through hole of the screw thread.

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