CN212130713U - Two-stage series miniature air pump - Google Patents
Two-stage series miniature air pump Download PDFInfo
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- CN212130713U CN212130713U CN202020913688.3U CN202020913688U CN212130713U CN 212130713 U CN212130713 U CN 212130713U CN 202020913688 U CN202020913688 U CN 202020913688U CN 212130713 U CN212130713 U CN 212130713U
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Abstract
The utility model discloses a miniature air pump of second grade series connection, including the left side pump, right side pump and motor, the left side pump, the right side pump all includes the pump body, install in the cylinder body of pump body upper end, set up the cylinder cap above the cylinder body, set up the valve block between cylinder body and cylinder cap, set up the piston in the cylinder body, set up the connecting rod that sets up in the piston lower extreme, set up in the pump body and locate the bearing in the eccentric shaft outside by motor drive's eccentric shaft and cover, the lower extreme and the bearing of connecting rod are connected, the cylinder cap of left side pump is provided with first air inlet and first gas vent, the cylinder cap of right side pump is provided with second air inlet and second gas vent, the eccentricity of the eccentric shaft of left side pump is 0.9-1.0mm, the eccentricity of the eccentric shaft of right side pump. The utility model discloses need not to change a great deal of part, can realize improving the purpose of highest output pressure, change in the tissue production, reduce the stock, production cycle is short, and the cost is lower, can satisfy different customers' different demands.
Description
Technical Field
The utility model belongs to the technical field of the air pump, concretely relates to miniature air pump of second grade series connection.
Background
In the market of traditional high-pressure swing piston air pumps or piston air compressors, in order to enable output pressure to reach 1.5 to 2 times of high pressure of a single-head pump, the cylinder diameter of a pump at an air inlet end is generally kept unchanged, the cylinder diameter of a pump at an air outlet end is reduced, and the distance (top clearance) between the top of a piston and a cylinder body is kept unchanged so as to change stroke volume, so that the purpose of doubling the highest output pressure is achieved, and meanwhile, under the condition of two-stage pressurization, loads borne by two ends of a double-output-shaft motor are balanced. When the air pump works, air is firstly sucked from the air inlet at one end, then is led into the air inlet of the pump head at the high-pressure end (secondary pressurization) by the air communicating pipe after coming out from the air outlet at the end, and finally the pressure is output from the air outlet at the high-pressure end. However, in the market of diversified requirements and single-piece small-batch production of the existing equipment, the diameter of the cylinder is changed, and a plurality of parts such as a piston, a leather cup, a gland, a cylinder body, a cylinder cover and a gasket need to be changed, so that the existing equipment is very complicated, is not easy to organize production, and has low production efficiency, long production period and high cost.
Therefore, there is a need in the art for an air pump that does not require a change in parts, is easier to organize and produce, has a small inventory, is short in production cycle, is less costly, and can effectively increase the maximum output pressure.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the deficiencies in the prior art, provide a need not to change a great deal of part, change in production, production cycle is short, the cost is lower and can effectively improve the miniature air pump of second grade series connection of highest output pressure.
The utility model discloses a realize through following technical scheme: a two-stage series micro air pump comprises a left pump, a right pump and a motor, wherein the left pump and the right pump respectively comprise a pump body, a cylinder body arranged at the upper end of the pump body, a cylinder cover arranged above the cylinder body, a valve block arranged between the cylinder body and the cylinder cover, a piston arranged in the cylinder body, a connecting rod arranged at the lower end of the piston, an eccentric shaft driven by the motor and a bearing sleeved outside the eccentric shaft, the lower end of the connecting rod is connected with the bearing, the cylinder cover of the left pump is provided with a first air inlet and a first air outlet, the cylinder cover of the right pump is provided with a second air inlet and a second air outlet, the eccentricity of the eccentric shaft of the left pump is 0.9-1.0mm, and the eccentricity of the eccentric shaft of the right pump is 0.55-0.65 mm.
And the top of the connecting rod is provided with an adjusting gasket.
The motor is positioned between the left side pump and the right side pump, the motor is a double-output-shaft motor, the left end and the right end of a main body of the motor are respectively connected with the left side pump and the right side pump through motor fastening screws, and a left driving shaft and a right driving shaft of the double-output-shaft motor are respectively connected with the eccentric shaft of the left side pump and the eccentric shaft of the right side pump.
The first air inlet the first exhaust port set up in the cylinder cap right side of left side pump, the second air inlet the second exhaust port set up in the cylinder cap left side of right side pump.
The side surface of the eccentric shaft is provided with a screw hole which extends inwards to the driving shaft of the motor, a counterweight screw is screwed in the screw hole, the front end of the counterweight screw abuts against the driving shaft of the motor, and the eccentric shaft is fixedly connected with the driving shaft of the motor through the counterweight screw.
The cylinder cover is connected with the cylinder body and the pump body through cylinder cover screws.
The right side of the left side pump and the left side of the right side pump are respectively connected with a rear cover through a left rear cover screw and a right rear cover screw.
The piston comprises a gland and a leather cup arranged on the outer circumference of the gland, a pressing plate is arranged at the top of the connecting rod, the inner ring of the leather cup is located between the gland and the pressing plate, and the gland is connected with the pressing plate through a connecting rod screw.
The utility model has the advantages that: the utility model discloses need not to change a great deal of part, can realize improving the purpose of highest output pressure, change in the tissue production, reduce the stock, production cycle is short, and the cost is lower, can satisfy different customers' different demands.
Drawings
Fig. 1 is a schematic perspective view of the present invention;
fig. 2 is a schematic front structural view of the present invention;
fig. 3 is a schematic top view of the present invention;
fig. 4 is a schematic sectional view taken along the direction B-B in fig. 3.
In the figure: 1-valve plate; 2-cylinder cover; 3-cylinder body; 4-a pump body; 5-pressing the cover; 6-leather cup; 7-connecting rod screw; 8-connecting rod; 9-rear cover; 10-rear cover screw; 11-a counterweight screw; 12-motor fastening screws; 13-an eccentric shaft; 14-a bearing; 15-a motor; 16-cylinder head screws; 17-left pump; 18-a first air inlet; 19-a first exhaust port; 20-right pump; 21-a second air inlet; 22-second exhaust port.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
As shown in FIGS. 1-4, a two-stage series micro air pump comprises a left pump 17, a right pump 20 and a motor 15, wherein the left pump 17 and the right pump 20 respectively comprise a pump body 4, a cylinder body 3 arranged at the upper end of the pump body 4, and a cylinder cover 2 arranged above the cylinder body 3, the valve plate 1 is arranged between the cylinder body 3 and the cylinder cover 2, the piston is arranged in the cylinder body 3, the connecting rod 8 is arranged at the lower end of the piston, the eccentric shaft 13 which is arranged in the pump body 4 and driven by the motor 15 and the bearing 14 which is sleeved outside the eccentric shaft 13 are arranged, the lower end of the connecting rod 8 is connected with the bearing 14, the cylinder cover 2 of the left side pump 17 is provided with a first air inlet 18 and a first exhaust port 19, the cylinder cover 2 of the right side pump 20 is provided with a second air inlet 21 and a second exhaust port 22, the eccentricity of the eccentric shaft 13 of the left side pump 17 is 0.9-1.0mm, and the eccentricity of the eccentric shaft 13 of the right side pump 20 is 0.
The utility model discloses a reach the combination of different stroke volumes by different eccentricities, and the different bores that non-tradition adopted reach the combination of different stroke volumes. Experiments show that the design is effective, and the positive pressure can reach more than 0.4 MPa. The left pump 17 can be used as the first stage, the right pump 20 can be used as the second stage, or the reverse can be performed, the right pump 20 is used as the first stage, and the left pump 17 is used as the second stage. The main difference is that the flow rate is different, the output flow rate of the former is about 3L/min, the output flow rate of the latter is about 5L/min, and the output pressure is slightly different, and the output pressure of the former is slightly lower. In addition, there is a difference in power consumption. The second exhaust port 22 may be connected to the first inlet port 18 by a gas line connection, in which case the second inlet port 21 is an inlet port of the overall apparatus and the first exhaust port 19 is an exhaust port of the overall apparatus.
Two-stage series connection miniature air pump experiment data table
In the table, the right-hand connection with the left-hand connection means that the right-hand pump 20 serves as a first stage and the left-hand pump 17 serves as a second stage; the left-right connection means that the left pump 17 is used as a first stage and the right pump 20 is used as a second stage. In combination, it is preferred to use the right pump 20 as the first stage and the left pump 17 as the second stage.
The utility model discloses in, set up behind the eccentric shaft 13 of different wheel base, the headspace of pump (the interval of piston top surface to cylinder body top surface) changes, consequently adds one or several adjusting shim at the top of connecting rod 8 to eliminate or reduce the headspace can, like this can the significantly reduced stock overstock, shorten production cycle, greatly expand the product variety, in order to satisfy multiple demand.
The motor 15 is located between the left pump 17 and the right pump 20, the motor 15 is a double-output-shaft motor 15, the left end and the right end of the main body of the motor 15 are respectively connected with the left pump 17 and the right pump 20 through motor fastening screws 12, and the left driving shaft and the right driving shaft of the double-output-shaft motor 15 are respectively connected with the eccentric shaft 13 of the left pump 17 and the eccentric shaft 13 of the right pump 20.
The first air inlet 18 and the first air outlet 19 are arranged on the right side of the cylinder cover 2 of the left side pump 17, and the second air inlet 21 and the second air outlet 22 are arranged on the left side of the cylinder cover 2 of the right side pump 20, so that a user can conveniently install an air inlet pipe joint and an air outlet pipe joint.
The side of the eccentric shaft 13 is provided with a screw hole extending inwards to the driving shaft of the motor 15, a balance weight screw 11 is screwed in the screw hole, the front end of the balance weight screw 11 abuts against the driving shaft of the motor 15, and the eccentric shaft 13 is tightly connected with the driving shaft of the motor 15 through the balance weight screw 11.
The cylinder head 2 is connected to the cylinder body 3 and the pump body 4 by a cylinder head screw 16. The right side of the left pump 17 and the left side of the right pump 20 are respectively connected to a rear cover 9 by left and right rear cover screws 10. The piston includes gland 5 and sets up in the leather cup 6 of the outer circumference of gland 5, and the top of connecting rod 8 is provided with the clamp plate, and the leather cup 6 inner circle is located between gland 5 and the clamp plate, and gland 5 passes through connecting rod screw 7 and is connected with the clamp plate.
It should be finally noted that the above only serves to illustrate the technical solution of the present invention, and not to limit the scope of the present invention, and that simple modifications or equivalent replacements performed by those skilled in the art to the technical solution of the present invention do not depart from the spirit and scope of the technical solution of the present invention.
Claims (8)
1. A two-stage series micro air pump is characterized in that: the second-stage series connection micro air pump comprises a left-side pump, a right-side pump and a motor, wherein the left-side pump and the right-side pump respectively comprise a pump body, a cylinder body arranged at the upper end of the pump body, a cylinder cover arranged above the cylinder body, a valve block arranged between the cylinder body and the cylinder cover, a piston arranged in the cylinder body, a connecting rod arranged at the lower end of the piston, an eccentric shaft driven by the motor and a bearing sleeved outside the eccentric shaft, the lower end of the connecting rod is connected with the bearing, the cylinder cover of the left-side pump is provided with a first air inlet and a first exhaust port, the cylinder cover of the right-side pump is provided with a second air inlet and a second exhaust port, the eccentric distance of the eccentric shaft of the left-side pump is 0.9-1.0mm, and the eccentric distance of the eccentric shaft of the.
2. The two-stage series micro air pump according to claim 1, wherein: and the top of the connecting rod is provided with an adjusting gasket.
3. The two-stage series micro air pump of claim 2, wherein: the motor is positioned between the left side pump and the right side pump, the motor is a double-output-shaft motor, the left end and the right end of a main body of the motor are respectively connected with the left side pump and the right side pump through motor fastening screws, and a left driving shaft and a right driving shaft of the double-output-shaft motor are respectively connected with the eccentric shaft of the left side pump and the eccentric shaft of the right side pump.
4. The two-stage series micro air pump according to claim 3, wherein: the first air inlet the first exhaust port set up in the cylinder cap right side of left side pump, the second air inlet the second exhaust port set up in the cylinder cap left side of right side pump.
5. The two-stage series micro air pump according to claim 4, wherein: the side surface of the eccentric shaft is provided with a screw hole which extends inwards to the driving shaft of the motor, a counterweight screw is screwed in the screw hole, the front end of the counterweight screw abuts against the driving shaft of the motor, and the eccentric shaft is fixedly connected with the driving shaft of the motor through the counterweight screw.
6. The two-stage series micro air pump according to claim 5, wherein: the cylinder cover is connected with the cylinder body and the pump body through cylinder cover screws.
7. The two-stage series micro air pump according to claim 6, wherein: the right side of the left side pump and the left side of the right side pump are respectively connected with a rear cover through a left rear cover screw and a right rear cover screw.
8. The two-stage series micro air pump according to claim 7, wherein: the piston comprises a gland and a leather cup arranged on the outer circumference of the gland, a pressing plate is arranged at the top of the connecting rod, the inner ring of the leather cup is located between the gland and the pressing plate, and the gland is connected with the pressing plate through a connecting rod screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020913688.3U CN212130713U (en) | 2020-05-27 | 2020-05-27 | Two-stage series miniature air pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020913688.3U CN212130713U (en) | 2020-05-27 | 2020-05-27 | Two-stage series miniature air pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212130713U true CN212130713U (en) | 2020-12-11 |
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ID=73669084
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020913688.3U Active CN212130713U (en) | 2020-05-27 | 2020-05-27 | Two-stage series miniature air pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212130713U (en) |
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2020
- 2020-05-27 CN CN202020913688.3U patent/CN212130713U/en active Active
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