CN108571436B - Miniature high-pressure air compressor - Google Patents
Miniature high-pressure air compressor Download PDFInfo
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- CN108571436B CN108571436B CN201810594227.1A CN201810594227A CN108571436B CN 108571436 B CN108571436 B CN 108571436B CN 201810594227 A CN201810594227 A CN 201810594227A CN 108571436 B CN108571436 B CN 108571436B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B37/00—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00
- F04B37/10—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for special use
- F04B37/14—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for special use to obtain high vacuum
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B25/00—Multi-stage pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B35/00—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
- F04B35/04—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being electric
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/0005—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00 adaptations of pistons
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/06—Cooling; Heating; Prevention of freezing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/06—Cooling; Heating; Prevention of freezing
- F04B39/066—Cooling by ventilation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
- F04B39/122—Cylinder block
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/16—Filtration; Moisture separation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/02—Stopping, starting, unloading or idling control
- F04B49/022—Stopping, starting, unloading or idling control by means of pressure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B51/00—Testing machines, pumps, or pumping installations
Abstract
The invention discloses a miniature high-pressure air compressor, which comprises a shell, an air compression mechanism and a driving mechanism, wherein the air compression mechanism and the driving mechanism are arranged in the shell, the air compression mechanism comprises a low-pressure cylinder, a high-pressure cylinder, a first piston, a second piston, a piston connecting rod and a pressure cylinder, the driving mechanism drives the connecting rod to drive the first piston and the second piston to respectively perform piston movement in an annular piston cavity between the low-pressure cylinder and the high-pressure cylinder and in the high-pressure cylinder, so that air is subjected to primary compression in the annular piston cavity, secondary compression is performed in the pressure cylinder, and tertiary compression is performed in the high-pressure cylinder. The invention can realize three-stage compression of air, has large maximum working pressure, small volume, light weight, convenient carrying and low cost.
Description
Technical Field
The invention relates to an air compressor, in particular to a miniature high-pressure air compressor.
Background
An air compressor is a device for compressing gas, and is widely applied to life and production of people. The three-stage air compressor is widely applied to industrial production due to large compressed air pressure, however, the conventional three-stage air compressor is generally provided with three compression cylinders, and the three-stage air compressor is large in size, heavy in weight, high in cost and inconvenient to carry, so that the three-stage air compressor cannot be popularized in the application of the three-stage air compressor in the living fields such as air gun shooting sports, diving activities and the like.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides the miniature high-pressure air compressor which is small in size, light in weight, convenient to carry and low in cost.
The invention provides a miniature high-pressure air compressor, which comprises a shell, an air compression mechanism and a driving mechanism, wherein the air compression mechanism and the driving mechanism are arranged in the shell; the air compression mechanism comprises a low-pressure cylinder, a high-pressure cylinder, a first piston, a second piston, a piston connecting rod and a pressure cylinder; the high-pressure cylinder is coaxially arranged in the low-pressure cylinder, the high-pressure cylinder is fixed on a first end of the low-pressure cylinder, so that an annular piston cavity is formed between the low-pressure cylinder and the high-pressure cylinder, the first piston is arranged in the annular piston cavity to divide the annular piston cavity into an air suction chamber and an air pressing chamber, and the second piston is arranged in the high-pressure cylinder; the piston connecting rod penetrates into the low-pressure cylinder from the second end of the low-pressure cylinder, the inner section of the piston connecting rod is provided with an outer sleeve and an inner rod, the outer sleeve of the piston connecting rod is sleeved outside the high-pressure cylinder and is connected with the first piston, and the inner rod of the piston connecting rod is inserted into the high-pressure cylinder and is connected with the second piston; the first end of the low-pressure cylinder is provided with an air suction chamber air inlet, a high-pressure cylinder air inlet and a high-pressure cylinder air outlet, the second end of the low-pressure cylinder is provided with an air pressing chamber air outlet, the pressure cylinder is respectively provided with a pressure cylinder air inlet and a pressure cylinder air outlet, the pressure cylinder air inlet and the pressure cylinder air outlet are connected through air pipelines, the air suction chamber air inlet is provided with a first one-way valve, the first piston is provided with a second one-way valve for communicating the air suction chamber and the pressure chamber, a third one-way valve is arranged between the pressure cylinder air outlet and the pressure cylinder air inlet, a fourth one-way valve is arranged between the pressure cylinder air outlet and the high-pressure cylinder air inlet, and the high-pressure cylinder air outlet is provided with a fifth one-way valve; the driving mechanism is used for driving the connecting rod to drive the first piston and the second piston to respectively perform piston movement in the annular piston cavity and the high-pressure cylinder.
When the high-pressure piston works, the driving mechanism drives the first piston and the second piston to respectively reciprocate in the annular piston cavity and the high-pressure cylinder. When the first piston and the second piston move towards the second end of the low-pressure cylinder, the first one-way valve is opened, the second one-way valve is closed, outside air is sucked into the air suction chamber from the first one-way valve, air in the air compression chamber is compressed by the first piston, primary compression of the air is completed in the air compression chamber, after the air in the air compression chamber is compressed to a certain degree, the third one-way valve is opened, the air subjected to the primary compression continuously enters the pressure cylinder from the third one-way valve, secondary compression of the air is completed in the pressure cylinder, meanwhile, the fourth one-way valve is opened, and the air subjected to the secondary compression enters the high-pressure cylinder from the fourth one-way valve; when the first piston and the second piston move towards the first end of the low-pressure cylinder, the first check valve and the third check valve are closed, the second check valve is opened, at the moment, air in the air suction chamber enters the air pressing chamber from the second check valve, the fourth check valve is closed, the fifth check valve is opened, air in the high-pressure cylinder is compressed by the second piston, and the air is compressed in the high-pressure cylinder in three stages. Therefore, by adopting the structure, three-stage compression of air can be realized, the maximum working pressure can reach 300bar, and compared with the traditional three-stage air compressor, the three-stage air compressor has the advantages of very compact structure, small volume, light weight (about 8 kg), very convenient carrying and low manufacturing cost.
Further, the driving mechanism comprises a driving motor, a swing arm and a sliding block, an output shaft of the driving motor is in transmission connection with an input end of the swing arm, the sliding block is connected with the outer end of the piston connecting rod, a swing groove is formed in the sliding block, and an output end of the swing arm is in sliding connection with the swing groove in the sliding block. The input end and the output end of the swing arm are not coaxial, the driving motor drives the output end of the swing arm to swing, the output end of the swing arm slides in the swing groove of the sliding block and drives the sliding block and the piston connecting rod to do axial reciprocating motion, and therefore the first piston and the second piston are driven to do reciprocating piston motion.
Furthermore, a direct-current power supply socket and an alternating-current power supply socket are arranged outside the shell, the driving motor is a direct-current speed reducing motor, the direct-current power supply socket is electrically connected with the driving motor, and the alternating-current power supply socket is electrically connected with the driving motor through a power converter. By arranging the power converter, both an alternating current power supply and a direct current power supply can be suitable, and the requirements of vehicle-mounted field use and indoor use are met.
Further, install oil water separator on the casing, oil water separator pass through the high-pressure condenser pipe with high-pressure jar gas outlet links to each other, and oil water separator is provided with external air cock and first blow off valve from top to bottom relatively. Through setting up oil water separator, the profit of condensation is long-pending in oil water separator's lower part, and clean high-pressure air is followed external air cock output, and the profit of long-pending staying can be followed first drainage valve and is discharged.
Furthermore, the high-pressure condensation pipe is a copper pipe wound in a threaded manner. The high-pressure condenser pipe adopts a copper pipe wound by threads, so that the flow path of high-pressure air is increased, the high-pressure air is fully cooled, and oil and water are fully separated.
And the oil-water separator is provided with an adjustable pressure gauge, and when the pressure reaches a set value of the adjustable pressure gauge, the controller controls the driving mechanism to stop working. With such a design, the output air pressure can be set.
Further, still include the alarm, temperature sensor is installed to the first end of low pressure cylinder, and when the temperature that temperature sensor response was higher than or was less than the setting value, the controller control alarm was reported to the police. By adopting the design, the alarm can give an alarm at high temperature, and the safe operation is ensured.
Furthermore, a high-pressure explosion-proof valve is arranged on the oil-water separator, and a low-pressure explosion-proof valve is arranged on the pressure cylinder. Through setting up high pressure explosion-proof valve and low pressure explosion-proof valve, have explosion-proof function, ensure safe in utilization.
Furthermore, filter cotton is arranged in the pressure cylinder, compressed air enters the pressure cylinder from the lower part of the filter cotton and is discharged out of the pressure cylinder from the upper part of the filter cotton, and a second liquid discharge valve is arranged at the bottom of the pressure cylinder. Through setting up the filter pulp, can filter the profit of air primary compression and second grade compression condensation, ensure that the air that gets into the high pressure cylinder is clean.
Further, install high-speed fan in the casing, high-speed fan blows the heat dissipation to air compression mechanism, the periphery of low pressure jar still is provided with helicitic texture. By adopting the structure, the heat dissipation effect of the machine is good.
The invention has the beneficial effects that: when the high-pressure piston works, the driving mechanism drives the first piston and the second piston to respectively reciprocate in the annular piston cavity and the high-pressure cylinder. When the first piston and the second piston move towards the second end of the low-pressure cylinder, the first one-way valve is opened, the second one-way valve is closed, outside air is sucked into the air suction chamber from the first one-way valve, air in the air compression chamber is compressed by the first piston, primary compression of the air is completed in the air compression chamber, after the air in the air compression chamber is compressed to a certain degree, the third one-way valve is opened, the air subjected to the primary compression continuously enters the pressure cylinder from the third one-way valve, secondary compression of the air is completed in the pressure cylinder, meanwhile, the fourth one-way valve is opened, and the air subjected to the secondary compression enters the high-pressure cylinder from the fourth one-way valve; when the first piston and the second piston move towards the first end of the low-pressure cylinder, the first check valve and the third check valve are closed, the second check valve is opened, at the moment, air in the air suction chamber enters the air pressing chamber from the second check valve, the fourth check valve is closed, the fifth check valve is opened, air in the high-pressure cylinder is compressed by the second piston, and the air is compressed in the high-pressure cylinder in three stages. Therefore, by adopting the structure, three-stage compression of air can be realized, the maximum working pressure can reach 300bar, and compared with the traditional three-stage air compressor, the three-stage air compressor has the advantages of very compact structure, small volume, light weight (about 8 kg), very convenient carrying and low manufacturing cost.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments will be briefly described below. Throughout the drawings, similar devices or portions are generally identified by similar reference numerals. In the drawings, the various devices or portions are not necessarily drawn to scale.
FIG. 1 is a schematic exterior view of an embodiment of the present invention;
FIG. 2 is a schematic internal view of an embodiment of the present invention (with the housing removed);
FIG. 3 is a schematic structural view of an air compression mechanism and a drive mechanism according to an embodiment of the present invention;
FIG. 4 is a cross-sectional view of the first and second pistons of an embodiment of the present invention as they move to the first end of the low pressure cylinder;
FIG. 5 is a cross-sectional view of the first piston and the second piston of an embodiment of the present invention as they move to the second end of the low pressure cylinder;
FIG. 6 is a cross-sectional view of a booster cylinder of an embodiment of the present invention;
fig. 7 is a sectional view of the oil-water separator according to the embodiment of the invention.
In the drawings, 1 denotes a housing; 21 denotes a low pressure cylinder; 211 denotes a suction chamber; 2111 denotes the suction chamber inlet; 212, a plenum; 2121 denotes the plenum outlet; 22 denotes a high pressure cylinder; 221 denotes a high-pressure cylinder intake port; 222 denotes the high pressure cylinder outlet; 23 denotes a first piston; 24 denotes a second piston; 25 denotes a piston rod; 251 a jacket; 252 denotes an inner lever; 26 denotes a booster cylinder; 261 denotes a booster cylinder intake port; 262 denotes a pressure cylinder air outlet; 263 denotes a low pressure explosion-proof valve; 264 denotes filter cotton; 265 denotes a second drain valve; 27 denotes a gas pipe; 281 denotes a first check valve; 282 denotes a second check valve; 283 represents a third check valve; 284, a fourth check valve; reference numeral 285 denotes a fifth check valve; 31 denotes a drive motor; 32 denotes a swing arm; 33 denotes a slider; 331 denotes a pendulum groove; 41 denotes a dc power outlet; 42 denotes an ac power outlet; 5 an oil-water separator; 51 denotes a high-pressure condenser tube; 52 denotes an external air tap; 53 denotes a first drain valve; 54 denotes an adjustable pressure gauge; 55 denotes a high pressure explosion-proof valve; 6 denotes a temperature sensor; and 7 denotes a high-speed fan.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the patent is not limited thereby.
As shown in fig. 1 to 6, an embodiment of the present invention provides a micro high-pressure air compressor, which includes a housing 1, and an air compression mechanism and a driving mechanism installed in the housing 1.
The air compression mechanism includes a low pressure cylinder 21, a high pressure cylinder 22, a first piston 23, a second piston 24, a piston connecting rod 25, and a booster cylinder 26; the high pressure cylinder 22 is coaxially disposed in the low pressure cylinder 21, the high pressure cylinder 22 is fixed on a first end of the low pressure cylinder 21 such that an annular piston cavity is formed between the low pressure cylinder 21 and the high pressure cylinder 22, the first piston 23 is installed in the annular piston cavity to divide the annular piston cavity into the suction chamber 211 and the pressure chamber 212, and the second piston 24 is installed in the high pressure cylinder 22; the piston connecting rod 25 penetrates into the low pressure cylinder 21 from the second end of the low pressure cylinder 21, the inner section of the piston connecting rod 25 is provided with an outer sleeve 251 and an inner rod 252, the outer sleeve 251 of the piston connecting rod 25 is sleeved outside the high pressure cylinder 22 and is connected with the first piston 23, and the inner rod 252 of the piston connecting rod 25 is inserted into the high pressure cylinder 22 and is connected with the second piston 24; a suction chamber air inlet 2111, a high-pressure cylinder air inlet 221 and a high-pressure cylinder air outlet 222 are arranged at a first end of the low-pressure cylinder 21, a pressure air chamber air outlet 2121 is arranged at a second end of the low-pressure cylinder 21, a pressure cylinder air inlet 261 and a pressure cylinder air outlet 262 are respectively arranged on the pressure cylinder 26, the pressure cylinder air inlet 261 and the pressure air chamber air outlet 2121 and the pressure cylinder air outlet 262 and the high-pressure cylinder 22 are respectively connected through an air pipeline 27, a first one-way valve 281 is arranged at the suction chamber air inlet 2111, a second one-way valve 282 communicating the suction chamber 211 and the pressure air chamber 212 is arranged on the first piston 23, a third one-way valve 283 is arranged between the pressure air chamber air outlet 2121 and the pressure cylinder air inlet 261, a fourth one-way valve 284 is arranged between the pressure cylinder air outlet 262 and the high-pressure cylinder air inlet 221, a fifth one-way valve 285 is arranged at the high-pressure cylinder air outlet 222, the third one-way valve 283 is arranged at the pressure cylinder air inlet 261, and the fourth one-way valve 284 at the high-pressure cylinder air inlet 221.
The driving mechanism is used for driving the connecting rod to drive the first piston 23 and the second piston 24 to respectively perform piston movement in the annular piston cavity and the high-pressure cylinder 22. Specifically, the driving mechanism comprises a driving motor 31, a swing arm 32 and a sliding block 33, an output shaft of the driving motor 31 is in transmission connection with an input end of the swing arm 32, the sliding block 33 is connected with an outer end of the piston connecting rod 25, a swing groove 331 is arranged on the sliding block 33, and an output end of the swing arm 32 is in sliding connection with the swing groove 331 on the sliding block 33. The input end and the output end of the swing arm 32 are not coaxial, the driving motor 31 drives the output end of the swing arm 32 to swing, the output end of the swing arm 32 slides in the swing groove 331 of the slide block 33, and simultaneously drives the slide block 33 and the piston connecting rod 25 to axially reciprocate, thereby driving the first piston 23 and the second piston 24 to do reciprocating piston motion.
In operation, the drive mechanism drives the first piston 23 and the second piston 24 to reciprocate within the annular piston chamber and the high pressure cylinder 22, respectively. When the first piston 23 and the second piston 24 move towards the second end of the low pressure cylinder 21, the first check valve 281 is opened, the second check valve 282 is closed, outside air is sucked into the suction chamber 211 from the first check valve 281, air in the pressure chamber 212 is compressed by the first piston 23, the air completes primary compression in the pressure chamber 212, after the air in the pressure chamber 212 is compressed to a certain degree, the third check valve 283 is opened, the air which passes through the primary compression continuously enters the pressure cylinder 26 from the third check valve 283, the air completes secondary compression in the pressure cylinder 26, the fourth check valve 284 is opened, and the air which passes through the secondary compression enters the high pressure cylinder 22 from the fourth check valve 284; when the first piston 23 and the second piston 24 move toward the first end of the low pressure cylinder 21, the first check valve 281 and the third check valve 283 are closed, the second check valve 282 is opened, and at this time, the air in the suction chamber 211 enters the air compression chamber 212 from the second check valve 282, and at the same time, the fourth check valve 284 is closed, the fifth check valve 285 is opened, and the air in the high pressure cylinder 22 is compressed by the second piston 24, and the air completes three-stage compression in the high pressure cylinder 22. Therefore, by adopting the structure, three-stage compression of air can be realized, the maximum working pressure can reach 300bar, and compared with the traditional three-stage air compressor, the three-stage air compressor has the advantages of very compact structure, small volume, light weight (about 8 kg), very convenient carrying and low manufacturing cost.
In this embodiment, a dc power outlet 41 and an ac power outlet 42 are provided outside the housing 1, the driving motor 31 is a 12V dc deceleration motor, the dc power outlet 41 is electrically connected to the driving motor 31, and the ac power outlet 42 is electrically connected to the driving motor 31 through a 220V/110V to 12V power converter. By arranging the power converter, both an alternating current power supply and a direct current power supply can be suitable, and the requirements of vehicle-mounted field use and indoor use are met.
In this embodiment, the shell 1 is provided with the oil-water separator 5, the oil-water separator 5 is connected with the high-pressure cylinder air outlet 222 through the high-pressure condensation pipe 51, the oil-water separator 5 is provided with the external air nozzle 52 and the first drainage valve 53 up and down, by arranging the oil-water separator 5, condensed oil and water are accumulated at the lower part of the oil-water separator 5, clean high-pressure air is output from the external air nozzle 52, and accumulated oil and water can be drained from the first drainage valve 53. The high pressure condenser pipe 51 of the present embodiment is a copper pipe wound in a spiral shape, so that the flow path of the high pressure air can be increased, the high pressure air can be sufficiently cooled, and the oil and the water can be sufficiently separated.
The oil-water separator 5 is provided with an adjustable pressure gauge 54, and when the pressure reaches a set value of the adjustable pressure gauge 54, the controller controls the driving mechanism to stop working, so that the output air pressure can be set. The temperature sensor 6 is installed to the first end of low pressure jar 21, and when the temperature that temperature sensor 6 responded to was higher than or was less than the setting value, the alarm was reported to the police to the controller control, and the alarm is bee calling organ specifically, can report to the police by high temperature like this, and simultaneously, the alarm can also report to the police by low pressure or high pressure, guarantees safe operation.
In addition, the oil-water separator 5 is provided with a high-pressure explosion-proof valve 55, the pressure cylinder 26 is provided with a low-pressure explosion-proof valve 263, and the high-pressure explosion-proof valve 55 and the low-pressure explosion-proof valve 263 are provided, so that an explosion-proof function is realized, and the use safety is ensured. The filter cotton 264 is arranged in the pressure cylinder 26, compressed air enters the pressure cylinder 26 from the lower part of the filter cotton 264 and is discharged out of the pressure cylinder 26 from the upper part of the filter cotton 264, the second liquid discharge valve 265 is arranged at the bottom of the pressure cylinder 26, oil and water condensed by primary compression and secondary compression of the air can be filtered by the filter cotton 264, and the air entering the high-pressure cylinder 22 is ensured to be clean. The high-speed fan 7 is installed in the shell 1, the high-speed fan 7 blows air to the air compression mechanism for heat dissipation, and the periphery of the low-pressure cylinder 21 is further provided with a thread structure, so that the heat dissipation effect of the structure is good.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the embodiments of the present invention, and they should be construed as being covered by the appended claims and their equivalents.
Claims (10)
1. A miniature high-pressure air compressor which is characterized in that: comprises a shell, an air compression mechanism and a driving mechanism which are arranged in the shell;
the air compression mechanism comprises a low-pressure cylinder, a high-pressure cylinder, a first piston, a second piston, a piston connecting rod and a pressure cylinder;
the high-pressure cylinder is coaxially arranged in the low-pressure cylinder, the high-pressure cylinder is fixed on a first end of the low-pressure cylinder, so that an annular piston cavity is formed between the low-pressure cylinder and the high-pressure cylinder, the first piston is arranged in the annular piston cavity to divide the annular piston cavity into an air suction chamber and an air pressing chamber, and the second piston is arranged in the high-pressure cylinder;
the piston connecting rod penetrates into the low-pressure cylinder from the second end of the low-pressure cylinder, the inner section of the piston connecting rod is provided with an outer sleeve and an inner rod, the outer sleeve of the piston connecting rod is sleeved outside the high-pressure cylinder and is connected with the first piston, and the inner rod of the piston connecting rod is inserted into the high-pressure cylinder and is connected with the second piston;
the first end of the low pressure cylinder is provided with an air suction chamber air inlet, a high pressure cylinder air inlet and a high pressure cylinder air outlet, the second end of the low pressure cylinder is provided with a pressure air chamber air outlet, the pressure cylinder is respectively provided with a pressure cylinder air inlet and a pressure cylinder air outlet, the pressure cylinder air inlet and the pressure air chamber air outlet as well as the pressure cylinder air outlet and the high pressure cylinder air inlet are respectively connected through air pipelines, the air suction chamber air inlet is provided with a first one-way valve, the first piston is provided with a second one-way valve for communicating the air suction chamber and the pressure air chamber, the pressure air chamber air outlet and the pressure cylinder air inlet are respectively provided with a third one-way valve, a fourth one-way valve is arranged between the pressure cylinder air outlet and the high pressure cylinder air inlet, and the high pressure cylinder air outlet is provided with a fifth one-way valve;
the driving mechanism is used for driving the connecting rod to drive the first piston and the second piston to respectively perform piston motion in the annular piston cavity and the high-pressure cylinder.
2. The micro high pressure air compressor as claimed in claim 1, wherein: the driving mechanism comprises a driving motor, a swing arm and a sliding block, an output shaft of the driving motor is in transmission connection with an input end of the swing arm, the sliding block is connected with the outer end of the piston connecting rod, a swing groove is formed in the sliding block, and an output end of the swing arm is in sliding connection with the swing groove in the sliding block.
3. The micro high pressure air compressor as claimed in claim 2, wherein: the shell is externally provided with a direct-current power supply socket and an alternating-current power supply socket, the driving motor is a direct-current speed reducing motor, the direct-current power supply socket is electrically connected with the driving motor, and the alternating-current power supply socket is electrically connected with the driving motor through a power converter.
4. The micro high pressure air compressor as claimed in claim 1, wherein: the oil-water separator is installed on the shell and is connected with the gas outlet of the high-pressure cylinder through a high-pressure condensation pipe, and the oil-water separator is provided with an external air tap and a first liquid discharge valve up and down relatively.
5. The micro high pressure air compressor as claimed in claim 4, wherein: the high-pressure condenser pipe is a copper pipe wound in a threaded manner.
6. The micro high pressure air compressor as claimed in claim 4, wherein: the oil-water separator is provided with an adjustable pressure gauge, and when the pressure reaches a set value of the adjustable pressure gauge, the controller controls the driving mechanism to stop working.
7. The micro high pressure air compressor as claimed in claim 6, wherein: still include the alarm, temperature sensor is installed to the first end of low pressure jar, and when the temperature that temperature sensor response was higher than or was less than the setting value, the controller control alarm was reported to the police.
8. The micro high pressure air compressor as claimed in claim 4, wherein: the oil-water separator is provided with a high-pressure explosion-proof valve, and the pressure cylinder is provided with a low-pressure explosion-proof valve.
9. The micro high pressure air compressor as claimed in claim 1, wherein: the filter cotton is arranged in the pressure cylinder, compressed air enters the pressure cylinder from the lower part of the filter cotton and is discharged out of the pressure cylinder from the upper part of the filter cotton, and a second liquid discharge valve is arranged at the bottom of the pressure cylinder.
10. The micro high pressure air compressor as claimed in claim 1, wherein: the high-speed fan is installed in the shell and used for blowing and radiating the air compression mechanism, and the periphery of the low-pressure cylinder is further provided with a thread structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN113982880A (en) * | 2020-04-13 | 2022-01-28 | 东莞市先马机电有限公司 | Novel compressor |
| CN217401083U (en) * | 2022-06-14 | 2022-09-09 | 东莞新勇士机电设备有限公司 | Miniature high-pressure air compression structure |
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| CN208310987U (en) * | 2018-06-11 | 2019-01-01 | 东莞市速美机电设备有限公司 | Minitype high-pressure air compressor |
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| GB171858A (en) * | 1920-10-06 | 1921-12-01 | Louis Frederick Rudston Fell | Improvements in and relating to air compressors |
| DE1195427B (en) * | 1961-07-05 | 1965-06-24 | Basf Ag | Three-stage high pressure gas compressor with a piston seal |
| CN2584859Y (en) * | 2002-12-18 | 2003-11-05 | 广州双鱼体育用品集团有限公司 | Three-level blower hand high-pressure air pump |
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| CN108571436A (en) | 2018-09-25 |
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