CN215486515U - Improved miniature high negative pressure pump device - Google Patents
Improved miniature high negative pressure pump device Download PDFInfo
- Publication number
- CN215486515U CN215486515U CN202120709811.4U CN202120709811U CN215486515U CN 215486515 U CN215486515 U CN 215486515U CN 202120709811 U CN202120709811 U CN 202120709811U CN 215486515 U CN215486515 U CN 215486515U
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- air
- steel needle
- upper cover
- frame
- rear cover
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Abstract
The utility model relates to the technical field of pumps and discloses an improved miniature high negative pressure pump device which comprises a rear cover provided with a through hole, wherein a rotating shaft of a motor penetrates through the through hole and extends into the rear cover, an eccentric shaft is arranged in the rear cover and is connected with the rotating shaft of the motor, and the motor drives the eccentric shaft to rotate eccentrically. The steel needle is inserted in the middle of the eccentric shaft and the steel needle frame, the rubber cup is of a cup-shaped elastic structure with an upward opening, and the steel needle frame drives the rubber cup to do circular scaling motion in a cavity formed by the upper cover and the rubber cup frame under the driving of the steel needle. The upper cover is equipped with 2 gas outlets and 2 air inlets, and wherein 1 air inlet passes through the silicone tube with 1 gas outlet and is connected. The upper cover is internally provided with a rubber gasket and a plastic gasket from top to bottom. According to the improved miniature high negative pressure pump device, 2 air inlets and 2 air outlets are formed in the upper cover, and 1 air inlet and 1 air outlet are communicated through the silicone tube, so that the high negative pressure effect is achieved in a serial connection mode, and the working efficiency is improved.
Description
Technical Field
The utility model belongs to the technical field of pumps, and particularly relates to an improved miniature high negative pressure pump device.
Background
The micropump is an instrument which is provided with an air suction nozzle and an air exhaust nozzle which are arranged in one inlet and one outlet respectively, can continuously form vacuum or negative pressure at the inlet, and forms micro-positive pressure at the air exhaust nozzle, and has small volume, and is widely applied to a plurality of fields of gas sampling, instruments and meters, chemical analysis, medical care, biological engineering, automatic control and the like. The existing micropump has the problems of insufficient negative pressure and low working efficiency.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an improved micro high negative pressure pump device, and aims to solve the problems that the negative pressure of a micro pump is not high enough and the working efficiency is low in the prior art.
The utility model is realized in this way, an improved miniature high negative pressure pump device, comprising:
the rear cover is of a hollow structure, and a through hole is formed in the bottom of the rear cover;
the rotating shaft of the motor penetrates through the through hole and extends into the rear cover;
the eccentric shaft is arranged in the rear cover and is connected with a rotating shaft of the motor, and an eccentric hole is formed in the eccentric shaft and is driven by the motor to rotate eccentrically;
one end of the steel needle is inserted into the eccentric hole;
the steel needle frame is used for being inserted at the other end of the steel needle and driven by the steel needle to do reciprocating motion;
the rubber cup is of a cup-shaped elastic structure with an upward opening, is connected with the steel needle frame and is driven by the steel needle frame to do circular scaling motion;
the leather cup frame is provided with a through hole for placing the rubber leather cup, the rubber leather cup is correspondingly clamped on the leather cup frame, and the bottom of the leather cup frame is correspondingly connected with the top of the rear cover;
the upper cover is of a hollow structure and correspondingly covers the top of the leather bowl frame, 2 air outlets and 2 air inlets are formed in the top of the upper cover, and 1 air inlet is connected with 1 air outlet through a silicone tube;
the plastic gasket is arranged on the rubber cup and in the upper cover and is provided with 4 through air holes;
and the rubber gasket is arranged on the plastic gasket and in the upper cover and is provided with an air inlet hole and an air outlet hole which correspond to the air inlet and the air outlet.
Further, 2 air inlets set up in both sides, 2 gas outlets set up between 2 air inlets.
Further, the both sides wall of back lid is equipped with bellied inserted sheet, leather cup frame both sides wall is equipped with the recess that link up, the both sides wall of upper cover is equipped with the recess, the inserted sheet of back lid in proper order with the recess of leather cup frame the recess joint of upper cover.
Compared with the prior art, the improved miniature high negative pressure pump device provided by the utility model has the advantages that 2 air inlets and 2 air outlets are arranged on the upper cover, and 1 air inlet and 1 air outlet are communicated by the silicone tube, namely, the pressure is ensured in a mode of connecting the air inlets and the air outlets in series, so that the effect of high negative pressure is achieved, and the working efficiency is improved.
Drawings
FIG. 1 is an exploded perspective view of an improved miniature high negative pressure pump device provided by the present invention;
fig. 2 is a schematic perspective view of a rubber gasket according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.
The following describes the implementation of the present invention in detail with reference to specific embodiments.
The same or similar reference numerals in the drawings of the present embodiment correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. based on the orientation or positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, but it is not intended to indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and are not to be construed as limiting the present patent, and the specific meaning of the terms may be understood by those skilled in the art according to specific circumstances.
Referring to fig. 1-2, a preferred embodiment of the present invention is shown.
Improved miniature high negative pressure pump device includes: the rear cover 2 is of a hollow structure, a through hole is formed in the bottom of the rear cover, and a rotating shaft of the motor 1 penetrates through the through hole and extends into the rear cover 2. The eccentric shaft 3 is arranged in the back cover 2 and is connected with a rotating shaft of the motor 1, and an eccentric hole is formed in the eccentric shaft 3 and is driven by the motor 1 to eccentrically rotate.
The steel needle 4 and the steel needle frame 5 are also arranged in the rear cover 2, one end of the steel needle 4 is inserted into the eccentric hole, and the other end of the steel needle 4 is inserted into the steel needle frame 5 to drive the steel needle frame 4 to do reciprocating motion. The rubber cup 7 is of a cup-shaped elastic structure with an upward opening, is correspondingly clamped on the rubber cup frame 6 and penetrates through a through hole in the rubber cup frame 6, the bottom of the rubber cup is connected with the steel needle frame 5, and the rubber cup performs circular scaling movement under the driving of the steel needle frame 5. The bottom of the leather bowl frame 6 is correspondingly connected with the top of the rear cover 2. The upper cover 10 is of a hollow structure, the cover is closed at the top of the leather cup frame 6, two side walls of the rear cover 2 are provided with protruding inserting pieces 21, two side walls of the leather cup frame 6 are provided with through grooves 61, two side walls of the upper cover 10 are provided with grooves 101, the inserting pieces 21 of the rear cover 2 are sequentially connected with the grooves 61 of the leather cup frame 6 and the grooves 101 of the upper cover 10 in a clamped mode, and meanwhile the inserting pieces 21, the grooves 61 of the leather cup frame 6 and the grooves 101 of the upper cover 10 are connected through bolts. The top of upper cover 10 is equipped with 2 gas outlets 11 and 2 air inlets 12, and wherein 1 air inlet 12 passes through the silicone tube with 1 gas outlet 11 and is connected, and 2 air inlets 12 set up in both sides, and 2 gas outlets 11 set up between 2 air inlets 12.
The plastic gasket 8 is arranged on the rubber cup 7 and in the upper cover 10, and is provided with 4 through air holes corresponding to the air outlet 11 and the air inlet 12. The rubber gasket 9 is arranged on the plastic gasket 8 and in the upper cover 10, and is provided with an air inlet hole and an air outlet hole corresponding to the air inlet 12 and the air outlet 11, and simultaneously corresponds to the vent holes of the plastic gasket 8.
When the space of the rubber cup 7 is enlarged, negative pressure is formed inside, and air enters through the 1 air inlet 12; when the space of the rubber cup 7 is compressed, the gas enters 2 air outlets 11 in two paths, one path of air is directly discharged from 1 air outlet 11, and the other path of air enters an air inlet 12 through a silicone tube; when the rubber cup 7 space is enlarged again, 2 air inlets 12 simultaneously supply air, so that high negative pressure is formed inside. The pressure is ensured by connecting the air inlet 12 and the air outlet 11 in series, so that the effect of high negative pressure is achieved, and the working efficiency is improved.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (3)
1. An improved miniature high negative pressure pump device, comprising:
the rear cover is of a hollow structure, and a through hole is formed in the bottom of the rear cover;
the rotating shaft of the motor penetrates through the through hole and extends into the rear cover;
the eccentric shaft is arranged in the rear cover and is connected with a rotating shaft of the motor, and an eccentric hole is formed in the eccentric shaft and is driven by the motor to rotate eccentrically;
one end of the steel needle is inserted into the eccentric hole;
the steel needle frame is used for being inserted at the other end of the steel needle and driven by the steel needle to do reciprocating motion;
the rubber cup is of a cup-shaped elastic structure with an upward opening, is connected with the steel needle frame and is driven by the steel needle frame to do circular scaling motion;
the leather cup frame is provided with a through hole for placing the rubber leather cup, the rubber leather cup is correspondingly clamped on the leather cup frame, and the bottom of the leather cup frame is correspondingly connected with the top of the rear cover;
the upper cover is of a hollow structure and correspondingly covers the top of the leather bowl frame, 2 air outlets and 2 air inlets are formed in the top of the upper cover, and 1 air inlet is connected with 1 air outlet through a silicone tube;
the plastic gasket is arranged on the rubber cup and in the upper cover and is provided with 4 through air holes;
and the rubber gasket is arranged on the plastic gasket and in the upper cover and is provided with an air inlet hole and an air outlet hole which correspond to the air inlet and the air outlet.
2. The improved miniature high negative pressure pump apparatus of claim 1, wherein said 2 air inlets are disposed on both sides, and said 2 air outlets are disposed between said 2 air inlets.
3. The improved miniature high negative pressure pump device of claim 1, wherein the two side walls of the rear cover are provided with raised insertion pieces, the two side walls of the leather cup frame are provided with through grooves, the two side walls of the upper cover are provided with grooves, and the insertion pieces of the rear cover are sequentially connected with the grooves of the leather cup frame and the grooves of the upper cover in a clamping manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120709811.4U CN215486515U (en) | 2021-04-08 | 2021-04-08 | Improved miniature high negative pressure pump device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120709811.4U CN215486515U (en) | 2021-04-08 | 2021-04-08 | Improved miniature high negative pressure pump device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215486515U true CN215486515U (en) | 2022-01-11 |
Family
ID=79773973
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120709811.4U Active CN215486515U (en) | 2021-04-08 | 2021-04-08 | Improved miniature high negative pressure pump device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215486515U (en) |
-
2021
- 2021-04-08 CN CN202120709811.4U patent/CN215486515U/en active Active
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