CN216617836U

CN216617836U - One-way valve plate micropump

Info

Publication number: CN216617836U
Application number: CN202123338785.8U
Authority: CN
Inventors: 卢洁宇
Original assignee: Tianjin Shanshui Technology Co ltd
Current assignee: Tianjin Shanshui Technology Co ltd
Priority date: 2021-12-28
Filing date: 2021-12-28
Publication date: 2022-05-27
Anticipated expiration: 2031-12-28

Abstract

The utility model belongs to the technical field of micropumps, and discloses a micropump with a one-way valve plate, which comprises a motor, wherein a pump body is arranged in front of the motor, a pump cover is arranged in front of the pump body, an eccentric wheel is arranged at the output end of the motor, the eccentric wheel is obliquely provided with a rocker arm through a ball head stainless steel shaft core, the rocker arm is connected with a rubber diaphragm, the lower part of the rubber diaphragm penetrates through the pump cover and is connected with the pump cover through a flange plate, three film cavities and a U-shaped air inlet are arranged above the rubber diaphragm, connecting columns are arranged below the rubber diaphragm, the rubber diaphragm is connected with a base, a triangular groove is arranged on the base, three circular plugs are uniformly arranged on the triangular groove, each circular plug is provided with four exhaust holes, three arc-shaped grooves are uniformly arranged on the back surface of the base, the arc-shaped grooves correspond to the U-shaped air inlet, the arc-shaped grooves are communicated with the film cavities, and elastic sealing valve plates are arranged in the triangular grooves in a sealing manner, the assembly and the manufacturing difficulty is reduced, the production efficiency is improved, the automatic pump is suitable for automatic production, the pumping effect is good, and the reaction is efficient and rapid.

Description

One-way valve plate micropump

Technical Field

The utility model belongs to the technical field of micropumps, and particularly relates to a micropump with a one-way valve plate.

Background

The micro pump is an instrument with small volume, wherein the micro pump is provided with an air suction nozzle and an air exhaust nozzle which are arranged in one inlet and one outlet, vacuum or negative pressure can be continuously formed at the inlet, and micro positive pressure is formed at the air exhaust nozzle.

SUMMERY OF THE UTILITY MODEL

In view of the problems raised by the above background art, the present invention is directed to: aims to provide a micro pump with a one-way valve plate.

In order to achieve the technical purpose, the technical scheme adopted by the utility model is as follows: a micropump with one-way valve plates comprises a motor, wherein a pump body is installed in front of the motor, a pump cover is installed in front of the pump body, an eccentric wheel is installed at the output end of the motor, a rocker arm is installed on the eccentric wheel through a ball head stainless steel shaft core in an inclined mode, the rocker arm is connected with a rubber diaphragm, the lower portion of the rubber diaphragm penetrates through the pump cover and is connected to the pump cover through a flange plate, three film cavities and U-shaped air inlets are formed in the upper surface of the rubber diaphragm, connecting columns are arranged below the rubber diaphragm, a base is connected to the rubber diaphragm, triangular grooves are formed in the base, three circular plugs are evenly arranged on the triangular grooves, four exhaust holes are formed in each circular plug, three arc-shaped grooves are evenly arranged on the back surface of the base, the arc-shaped grooves correspond to the U-shaped air inlets, the arc-shaped grooves are communicated with the film cavities, elastic sealing valve plates are installed in the triangular grooves in a sealing mode, the elastic sealing valve plate is characterized in that a thin-wall groove matched with the circular plug is formed in the elastic sealing valve plate, an overflowing channel hole is formed in the thin-wall groove, an upper cover is connected to the elastic sealing valve plate and provided with a triangular boss matched with the elastic sealing valve plate, and an extrusion rib and an exhaust funnel are arranged in the triangular boss.

Further, the rubber diaphragm is provided with a sealing boss, and the design can tightly press the sealing diaphragm cavity through the base.

Further inject, the elastic sealing valve plate outer lane is equipped with the sealing strip, and such design can be through inside the tight triangle-shaped boss of upper cover pressfitting, makes gas discharge through the intercommunication groove.

Further inject, be equipped with the intercommunication groove between extrusion rib and the aiutage, such design makes things convenient for gas outgoing.

Further, the base and the upper cover are clamped together through the clamping buckle, and the design is convenient to mount and dismount.

The utility model has the following beneficial effects:

according to the utility model, the elastic sealing valve plate is installed on the base in a sealing manner to replace a common umbrella-shaped one-way sealing structure, so that the assembly and manufacturing difficulty is greatly reduced, the production efficiency is improved, the elastic sealing valve plate is suitable for automatic production, the production and manufacturing cost can be greatly reduced through the elastic sealing valve plate, and in addition, the rubber diaphragm is extruded through the eccentric transmission mechanism, so that the pumping effect is good, and the reaction is efficient and quick;

drawings

The utility model is further illustrated by the non-limiting examples given in the accompanying drawings;

FIG. 1 is a sectional view of an elastic sealing valve plate of a micropump with a check valve plate according to an embodiment of the present invention;

FIG. 2 is a sectional view of a rubber diaphragm of an embodiment of a micropump with a check valve plate according to the present invention;

FIG. 3 is a front isometric view of a base of an embodiment of a one-way valve micro-pump of the present invention;

FIG. 4 is an isometric view of the opposite side of the base of an embodiment of the one-way valve micro-pump of the present invention;

FIG. 5 is an isometric view of a rubber diaphragm of an embodiment of the one-way valve micro-pump of the present invention;

FIG. 6 is an isometric view of the upper cover of a one-way valve plate micropump of the present invention;

FIG. 7 is an isometric view of an elastomeric seal flap of an embodiment of a one-way flap micropump of the present invention;

the main element symbols are as follows:

the pump comprises a motor 1, a pump body 11, a pump cover 12, an eccentric wheel 13, a rocker arm 14, a rubber diaphragm 15, a film cavity 151, a U-shaped air inlet 152, a connecting column 153, a base 2, a triangular groove 21, a circular plug 22, an exhaust hole 23, an arc-shaped groove 24, an elastic sealing valve sheet 25, a thin-wall groove 26, an overflowing channel hole 27, an upper cover 28, a triangular boss 29, an extrusion rib 210, an exhaust cylinder 211, a sealing boss 3 and a communicating groove 4.

Detailed Description

In order that those skilled in the art can better understand the present invention, the following technical solutions are further described with reference to the accompanying drawings and examples.

As shown in fig. 1-7, the micropump with the one-way valve plate comprises a motor 1, a pump body 11 is mounted in front of the motor 1, a pump cover 12 is mounted in front of the pump body 11, an eccentric wheel 13 is mounted at an output end of the motor 1, a rocker arm 14 is obliquely mounted on the eccentric wheel 13 through a ball head stainless steel shaft core, the rocker arm 14 is connected with a rubber diaphragm 15, the lower part of the rubber diaphragm 15 penetrates through the pump cover 12 and is connected with the pump cover 12 through a flange, three membrane cavities 151 and U-shaped air inlets 152 are formed in the upper surface of the rubber diaphragm 15, a connecting post 153 is arranged below the rubber diaphragm 15, a base 2 is connected to the rubber diaphragm 15, a triangular groove 21 is formed in the base 2, three circular plugs 22 are uniformly arranged on the triangular groove 21, four exhaust holes 23 are formed in each circular plug 22, three arc-shaped grooves 24 are uniformly formed in the back surface of the base 2, the arc-shaped grooves 24 are arranged corresponding to the U-shaped air inlets 152, and are communicated with the membrane cavities 151, an elastic sealing valve plate 25 is hermetically arranged in the triangular groove 21, a thin-wall groove 26 matched with the circular plug 22 is arranged on the elastic sealing valve plate 25, an overflowing channel hole 27 is arranged on the thin-wall groove 26, an upper cover 28 is connected to the upper surface of the elastic sealing valve plate 25, a triangular boss 29 matched with the elastic sealing valve plate 25 is arranged on the upper cover 28, and an extrusion rib 210 and an exhaust funnel 211 are arranged in the triangular boss 29.

In this embodiment, when a one-way valve micro-pump is used,

the principle is as follows: elastic sealing valve block 25 and base 2 cooperation, elastic sealing valve block 25 selects silica gel or rubber material, good leakproofness has, elastic sealing valve block 25 and base 2 elastic fit, just form seal structure, because elastic sealing valve block 25 has thin wall groove 26's one side and base 2 laminating elastic fit, the opposite side is open, so the structure is one-way sealed, when the pump work, the air current enters into membrane chamber 151 from base 2's U type air inlet 152, the air current forward circulation behind the sealing force of elastic sealing valve block 25 and base 2 is greater than to the pressure in membrane chamber 151, the air gets into from four exhaust holes 23 and overflows passageway hole 27, at last through communicating groove 4 outflow aiutage 211. If the pump does not work, because the elastic sealing valve plate 25 and the base 2 form a sealing force, and meanwhile, the extrusion rib 210 of the upper cover 28 tightly presses the elastic sealing valve plate 25 to form further sealing, the one-way structure is further ensured. The motor 1 drives the eccentric wheel 13, the eccentric wheel 13 drives the rocker arm 14, the rocker arm 14 is connected with the rubber diaphragm 15, when the motor 1 rotates, the rocker arm 14 is driven to reciprocate, the motion is transmitted to the rubber diaphragm 15, the rubber diaphragm 15 compresses and extends in a reciprocating mode, and therefore a volume difference is formed, and the pump airflow work is formed by matching the functions of the U-shaped air inlet 152 (air inlet channel) and the elastic sealing valve plate 25 (exhaust function) of the base 2.

The rubber diaphragm 15 is preferably provided with a sealing projection 3, which is designed to press-tightly seal the diaphragm chamber 151 via the base 2, in fact, other structures may be considered as appropriate for sealing the diaphragm chamber 151.

Preferably, the elastic sealing valve plate 25 is provided with a sealing strip on the outer ring, and in such a design, the upper cover 28 can press the inside of the triangular boss 29 tightly, so that the gas can be discharged through the communicating groove 5, and in fact, other discharging structures can be considered according to specific situations.

Preferably, a communication groove 4 is formed between the extrusion rib 210 and the exhaust funnel 211, so that the gas is conveniently exhausted.

Preferably, the base 2 and the cover 28 are snap-fitted together, which facilitates assembly and disassembly, and in fact, other mounting arrangements may be considered as the case may be.

The foregoing embodiments are merely illustrative of the principles of the present invention and its efficacy, and are not to be construed as limiting the utility model. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims

1. A micropump with a one-way valve plate is characterized in that: the pump comprises a motor (1), a pump body (11) is installed in front of the motor (1), a pump cover (12) is installed in front of the pump body (11), an eccentric wheel (13) is installed at the output end of the motor (1), a rocker arm (14) is installed on the eccentric wheel (13) through the inclination of a ball head stainless steel shaft core, the rocker arm (14) is connected with a rubber diaphragm (15), the lower portion of the rubber diaphragm (15) penetrates through the pump cover (12) and is connected to the pump cover (12) through a flange plate, three diaphragm cavities (151) and a U-shaped air inlet (152) are arranged above the rubber diaphragm (15), a connecting column (153) is arranged below the rubber diaphragm (15), a base (2) is connected onto the rubber diaphragm (15), triangular grooves (21) are formed in the base (2), three circular plugs (22) are uniformly arranged on the triangular grooves (21), and four exhaust holes (23) are formed in each circular plug (22), base (2) the back evenly is equipped with three arc wall (24), arc wall (24) correspond the setting with U type air inlet (152), just arc wall (24) communicate in membrane chamber (151), elastic sealing valve block (25) are installed to triangle-shaped recess (21) internal seal, be equipped with on elastic sealing valve block (25) with circular end cap (22) complex thin wall recess (26), be equipped with on thin wall recess (26) and overflow passage hole (27), be connected with upper cover (28) above elastic sealing valve block (25), upper cover (28) are equipped with elastic sealing valve block (25) complex triangle-shaped boss (29), be provided with extrusion rib (210) and aiutage (211) in triangle-shaped boss (29).

2. The micropump with check valve sheet of claim 1, wherein: and a sealing boss (3) is arranged on the rubber diaphragm (15).

3. The micropump with check valve sheet of claim 2, wherein: and the outer ring of the elastic sealing valve plate (25) is provided with a sealing strip.

4. A one-way valve micro-pump according to claim 3, wherein: a communicating groove (4) is arranged between the extrusion rib (210) and the exhaust funnel (211).

5. The micropump with check valve sheet of claim 4, wherein: the base (2) and the upper cover (28) are clamped together through a buckle.