Electromagnetic oscillation iron core induction permanent magnetic rod opposite opening and closing oscillation duplex low-noise air pump

Abstract

An electromagnetic oscillation iron core induction permanent magnetic rod opposite opening and closing oscillation duplex low-noise air pump comprises a single excitation coil, a soft magnetic iron core, an air pump base, a rubber diaphragm plate, an air pump exhaust nozzle, a driving magnetic rod oscillation connecting rod, an air pump shell and an air pump cover. And the single electromagnetic oscillation excitation coil is inserted into the soft magnet core and is compounded with the single excitation coil to form the electromagnetic oscillation electromagnet. The double-connection air pump is formed by fixing two double-connection air pumps which are connected through a rubber diaphragm plate on an air pump shell. Compressed air generated by telescopic movement of the air pump rubber diaphragm plate air compressing bat is pressed out through the exhaust pipe, and therefore the electromagnetic oscillation iron core induction permanent magnetic rod opposite opening and closing oscillation duplex low-noise air pump is formed. The device is compact in structure, small in size, light in weight, easy to assemble, low in cost, large in gas supply amount, low in energy consumption, high in reliability, low in noise and capable of saving energy.

Description

Technical Field

[0001] The invention relates to an air pump, which belongs to an electromechanical product, and in particular to an electromagnetic oscillation iron core induction permanent magnetic rod opposing opening and closing oscillation double-link low-noise air pump used for ornamental fish and aquaculture. Background Art

[0002] The electromagnetic oscillation air pumps currently sold on the market are generally single-mouth or double-mouth air pumps, that is, one or two air pumps are installed in the air pump, connected to one or two air nozzles. Today's double-mouth air pumps are two single air pumps that use two rubber flaps to move in and out of the air, and there are two check valves in the air pump to enter and exit the gas, and then press out the air through two air nozzles. A single air pump has only one outlet nozzle, so it can only supply air to two places. These air pumps are generally simple in structure, small in gas volume, and have few air supply nozzles, which limits their scope of use. Someone has invented two air pumps connected in parallel (back to back) to share a back plate to form a double air chamber, double air channel air pump, such as the utility model "A double-connected air seat 8-nozzle air pump" with application number CN98233623.3, authorization announcement number CN2354364Y, and authorization announcement date 19991222: A double-connected air seat 8-nozzle air pump, consisting of an air pump seat (1), an electromagnetic oscillation iron core (2) and an air pump cover (16), characterized in that two double-connected air seats (3) are installed in the middle of the air pump seat (1). The double-connected air seat (3) is composed of two air seat fixing seats (5) attached to each other through a rubber diaphragm plate (4). Each air seat fixing seat (5) has two air inlets (6) at the front end and two air outlet pipes (7) at the rear end. There are two check valves (8) at the upper and lower parts of the air seat fixing seat (5), an air inlet chamber (9), a compressed air passage (10) in the middle, an air storage chamber (11) at the bottom, and convex strips (12) around the periphery. The eight air outlet pipes (7) are connected to four to eight air outlet nozzles (13) with valves through rubber hoses. However, the patent is still large in size, complex in structure, and high in cost.

[0003] Application number: CN92207928.5 A silent fish tank air pump is a low-noise fish tank air pump, which includes a base 1, an outer cover 7, an inner cover 6 arranged in the outer cover 7, and an air pump device 4 arranged in the inner cover 6, characterized in that a metal plate 2 for shielding vibration sound waves is arranged on the bottom plate 10 of the base, and a muffler 5 connected to the air pump device is arranged in the inner cover 6, the muffler is composed of a main pipeline 51, two muffler chambers 52, 54, a partition 53 and exhaust pipes 55, 56, and a tortuous airway that can reduce the air flow speed and the intensity of the sound wave is arranged in the muffler chamber. The fish tank air pump has low noise in the output air flow and less transmission of vibration sound of the air pump device, so the noise pollution to the fish tank is small.

[0004] Application No. CN02226717.4 Air chamber of a fish tank air pump with adjustable air inlet The utility model relates to an air chamber of a fish tank air pump with adjustable air inlet, comprising an air chamber seat and an air chamber bottom plate, the air chamber seat and the air chamber bottom plate divide the air chamber into an air inlet chamber and an air storage chamber, and is characterized in that a soundproofing chamber surrounded by the air chamber seat and the air chamber bottom plate is provided on the air chamber seat, a screw hole is provided on one of the side walls of the soundproofing chamber, an adjusting screw matching the thread of the screw hole is screwed into the soundproofing chamber through the screw hole, a through hole coaxial with the screw hole is provided on the side wall of the soundproofing chamber opposite to the screw hole to communicate the soundproofing chamber with the air inlet chamber, and one or more air inlet holes are provided on the air chamber bottom plate as one of the side walls of the soundproofing chamber.

[0005] Application No. CN02226718.2 Silence chamber of fish tank air pump The utility model relates to a silencer air chamber of a fish tank air pump with simple structure and low noise, comprising an air chamber seat and a base plate, a partition is provided on the air chamber seat to separate the air chamber surrounded by the air chamber seat and the base plate into an air intake chamber and an air storage chamber, the air intake chamber is provided with an air intake port communicating with the outside and an air intake hole communicating with an air intake check valve, the air storage chamber is provided with an exhaust port communicating with an exhaust pipe and an exhaust hole communicating with an exhaust check valve, it is characterized in that an exhaust silencer pipe communicating with the exhaust port extends from the air chamber seat in the air storage chamber, the end of the exhaust silencer pipe is covered with a throttling cover, convex ribs are provided along the inner wall and bottom of the throttling cover to clamp the throttling cover on the exhaust silencer pipe and leave an airway between the inner wall of the throttling cover and the outer wall of the exhaust silencer pipe for air to pass. Summary of the invention

[0006] In order to solve the problems existing in the background technology, the present invention adopts the following technical scheme: an electromagnetic oscillation iron core induction permanent magnetic rod opposing opening and closing oscillation double low-noise air pump, including an air pump base, a single electromagnetic oscillation two-pole iron core, an air pump cover, and a connecting driving magnetic rod. Its characteristics are: a single excitation coil induction "C"-shaped soft magnetic core is provided in the air pump housing, and the "C"-shaped two-pole soft magnetic core is a single excitation coil inserted on the same side of two "L"-shaped soft magnetic cores, forming a "C"-shaped soft magnetic core composed of a "C"-shaped two-pole soft magnetic core and a single excitation coil, forming a two-pole electromagnetic oscillation electromagnet with horseshoe-shaped magnetic poles.

[0007] A single excitation coil senses a "C"-shaped two-pole electromagnetic oscillation electromagnet horseshoe-shaped pole, which corresponds to a driving magnetic rod oscillation connecting rod. One end of the driving magnetic rod oscillation connecting rod is inserted into the positioning groove of the air pump housing through the driving magnetic rod oscillation connecting rod shock-absorbing rubber cylinder. The other end of the driving magnetic rod oscillation connecting rod is compositely connected and fixed with a permanent magnet to form the driving magnetic rod oscillation connecting rod. The middle part of the driving magnetic rod oscillation connecting rod is connected and fixed to two rubber diaphragm plates on both sides through the driving magnetic rod oscillation connecting rod. The two rubber diaphragm plates are suitably connected to two air pump bases. The two air pump bases are sealed and fixed to the air pump housing through shock-absorbing gasket connectors. An air inlet and an air outlet are provided on the air pump base, and the air outlet is connected and fixed to the opposite sides of the air pump housing through an air outlet pipe.

[0008] The alternating current is passed into the single excitation coil to generate an alternating induction magnetic field. The alternating induction magnetic field generated by the single excitation coil forms a "C"-shaped horseshoe-shaped two-pole electromagnetic oscillation electromagnet at the open end of the "C"-shaped soft magnetic core. A pair of alternating induction magnetic field horseshoe-shaped magnetic poles corresponding to a permanent magnet of a driving magnetic rod oscillation connecting rod interact according to the principle of like repels like and opposites attract, driving the magnetic rod oscillation connecting rod, and through the driving magnetic rod oscillation connecting rod connecting cap connecting piece in the middle of the driving magnetic rod oscillation connecting rod, the two rubber diaphragm plates on the opposite sides are driven to perform telescopic movement. The check valve group in the two air pump bases connected by the two rubber diaphragm plates is opened and closed to realize the intake and exhaust of the two air pumps. The air pump base is provided with an air inlet and an air outlet. The air outlet is connected and fixed to the air pump housing through an air outlet pipe to form an electromagnetic oscillation iron core induction permanent magnetic rod opposing opening and closing oscillation double low-noise air pump. The air pump controls the power and output air pressure and volume of the air pump through the power supply control device.

[0009] The electromagnetic oscillation iron core induction permanent magnetic rod opposing opening and closing oscillation double low noise air pump includes an air pump base, a single electromagnetic oscillation quadrupole iron core, an air pump cover, and a connecting driving magnetic rod. Its characteristics are: a single excitation coil is provided in the middle of the air pump housing to induce the "I"-shaped "I"-shaped quadrupole soft magnetic core, which is composed of two "T"-shaped soft magnetic cores inserted into the single excitation coil, forming a quadrupole electromagnetic oscillation electromagnet with two pairs of horseshoe-shaped magnetic poles formed at the open ends of the "I"-shaped soft magnetic core composed of the "I"-shaped quadrupole soft magnetic core and the single excitation coil.

[0010] The single excitation coil induces two pairs of horseshoe-shaped magnetic poles of the "I"-shaped four-pole electromagnetic oscillation electromagnet, corresponding to two driving magnetic rod oscillation connecting rods. One end of each driving magnetic rod oscillation connecting rod is inserted into the positioning groove of the air pump housing through the driving magnetic rod oscillation connecting rod shock-absorbing rubber cylinder. The other end of the driving magnetic rod oscillation connecting rod is compositely connected and fixed with a permanent magnet to form the driving magnetic rod oscillation connecting rod. The middle part of the driving magnetic rod oscillation connecting rod is connected and fixed with two rubber diaphragm plates on both sides through the driving magnetic rod oscillation connecting rod. The two rubber diaphragm plates are connected to two air pump bases in sets. The two air pump bases are sealed and fixed on the air pump housing through shock-absorbing gasket connectors. The air pump base is provided with an air inlet and an air outlet. The air outlet is connected and fixed to the opposite ends of the air pump housing through an air outlet pipe to form an electromagnetic oscillation iron core induction permanent magnetic rod opposing opening and closing oscillation double low-noise air pump with four air outlets. The air pump controls the power and output air pressure and volume of the air pump through a power supply control device.

[0011] Alternating current is passed into a single excitation coil to generate an alternating induction magnetic field. The alternating induction magnetic field generated by the single excitation coil forms a four-pole electromagnetic oscillation electromagnet with two pairs of horseshoe-shaped magnetic poles with the same magnetic poles on the upper and lower sides of the "I"-shaped soft magnetic core at the open ends on both sides. A permanent magnet corresponding to a driving magnetic rod oscillation connecting rod of a pair of alternating induction magnetic field horseshoe-shaped magnetic poles interacts with each other according to the principle that like repels like and opposites attract, drives the magnetic rod oscillation connecting rod, and drives the two rubber diaphragm plates on both sides to perform telescopic movement through the driving magnetic rod oscillation connecting rod connecting cap connecting piece in the middle of the driving magnetic rod oscillation connecting rod. The two rubber diaphragm plates are set to connect two air pump bases, and the check valve group in the two air pumps is opened and closed to realize the intake and exhaust of the two air pumps. An air inlet and an air outlet are provided on the air pump base, and the air outlet is connected and fixed to the opposite ends of the air pump housing through an air outlet pipe to form an electromagnetic oscillation iron core induction permanent magnetic rod opposing opening and closing oscillation double low-noise air pump with four air outlet nozzles. The air pump controls the power and output air pressure and volume of the air pump through a power supply control device.

[0012] The electromagnetic oscillation iron core induction permanent magnetic rod is opposed to open and close oscillation double low noise air pump, the column seat partition of the air pump is provided with two non-return valves, and an air inlet chamber is provided, the middle is provided with a pressure hole, the lower part is provided with an air storage chamber, the bottom periphery of the air pump is provided with a convex ring, and the top of the air pump of the air pump column seat is connected to a rubber diaphragm plate. The two rubber diaphragm plates are fixedly connected to the driving oscillation connecting rod with their backs facing each other, and the two rubber diaphragm plates are sealed and connected to the air pump set. The air pump is fixed to the air pump housing through a shock-absorbing washer, and the air pump is provided with an air inlet and a one-way air inlet valve, an air outlet, and a one-way air outlet valve, the one-way air outlet valve is connected to the air outlet pipe, the air outlet pipe is fixedly led out through the air pump housing, and a locking pipe connection barb is provided on the air outlet pipe nozzle.

[0013] The electromagnetic oscillation iron core induces permanent magnetic rods to open and close the oscillation double low-noise air pump. A rubber cylinder for fixing the oscillation connecting rod is installed at the lower part of one side of the air pump fixing seat, and the end of the driving magnetic rod oscillation connecting rod may be a shock-absorbing spring.

[0014] The electromagnetic oscillation iron core induction permanent magnetic rod opposing opening and closing oscillation double low noise air pump, the two air pumps are respectively provided with an air outlet pipe, and the air outlet pipe nozzle is connected with the air outlet nozzle through a plastic pipe.

[0015] The electromagnetic oscillation iron core induction permanent magnetic rods are opposed to open and close oscillation double low noise air pump, the air pump shell is a double-layer or multi-layer composite shell, and sound insulation materials are arranged between the composite shells.

[0016] An electromagnetic oscillation structure for reducing the noise of an air pump with an electromagnetic oscillation iron core inducing a permanent magnetic rod opposing an opening and closing oscillation double low-noise air pump is characterized in that: an electromagnetic oscillation single excitation coil induces a "C"-shaped two-pole electromagnetic oscillation electromagnet horseshoe-shaped magnetic pole, corresponding to a driving magnetic rod oscillation connecting rod, one end of the driving magnetic rod oscillation connecting rod is inserted into the positioning groove of the air pump housing through the driving magnetic rod oscillation connecting rod shock-absorbing rubber cylinder, and the other end of the driving magnetic rod oscillation connecting rod is compositely connected and fixed with a permanent magnet to form a driving magnetic rod oscillation connecting rod, and the middle part of the driving magnetic rod oscillation connecting rod is connected and fixed with two rubber diaphragm plates on both sides through the driving magnetic rod oscillation connecting rod, and the two rubber diaphragm plates are connected to two air pump bases in a set, and the two air pump bases are sealed and fixed on the air pump housing through a shock-absorbing washer connector. When the air pump on one side is inhaled, the air pump on the other side is exhausted, and synchronous resonance cannot be generated, thereby reducing noise.

[0017] Or a single excitation coil senses two pairs of horseshoe-shaped poles of an "I"-shaped four-pole electromagnetic oscillation electromagnet, corresponding to a driving magnetic rod oscillation connecting rod. One end of the driving magnetic rod oscillation connecting rod is inserted into the positioning groove of the air pump housing through the driving magnetic rod oscillation connecting rod shock-absorbing rubber cylinder. The other end of the driving magnetic rod oscillation connecting rod is compositely connected and fixed with a permanent magnet to form a driving magnetic rod oscillation connecting rod. The middle part of the driving magnetic rod oscillation connecting rod is connected and fixed to two rubber diaphragm plates on both sides through the driving magnetic rod oscillation connecting rod. The two rubber diaphragm plates are connected to two air pump bases in sets, and the two air pump bases are sealed and fixed to the air pump housing through shock-absorbing gasket connectors. When one side of the air pump is inhaling, the other side of the air pump is exhausted, and synchronous resonance cannot be generated, thereby reducing noise.

[0018] The two oscillating permanent magnetic connecting rods arranged in the middle of the four air pumps driven by two pairs of back-to-back magnetic poles must be arranged diagonally with the two pairs of magnetic poles of the "I"-shaped electromagnet to offset each other's oscillations, that is, the diagonal oscillation of the permanent magnetic connecting rods is synchronously close to the axis and separated synchronously, so that the oscillating permanent magnetic connecting rods produce counter-oscillations between each other, that is, one of the permanent magnets of the two oscillating permanent magnetic connecting rods is an N pole or an S pole, and the other is an S pole or an N pole, and the N pole and the S pole of the electromagnet are simultaneously diagonally repelled by the same poles and attracted by the opposite poles, that is, they oscillate diagonally inward and diagonally outward at the same time, so that the balance center is always kept in the middle of the magnetic poles, and the diagonal balance of the oscillation center is maintained between each other. This structure can offset each other's oscillations, reduce resonance, and thus reduce noise.

[0019] Beneficial effects of the present invention: A single electromagnetic oscillation excitation coil is inserted into a soft magnetic core and a single excitation coil is composited to form a magnetic pole electromagnetic oscillation electromagnet at the open ends of the soft magnetic core. A rubber diaphragm plate is connected to drive the magnetic rod oscillation connecting rod to drive the two air pumps to extend and retract and oscillate to offset each other, and the generated compressed gas is pressed out through the symmetrical exhaust pipe, thus forming an electromagnetic oscillation iron core induction permanent magnetic rod opposing opening and closing oscillation double low-noise air pump. The advantage of the present invention is that part of the cause of the noise has been discovered through long-term research and experiments, and the noise of the air pump has been reduced through reasonable design. The air pump has a compact structure, small size, light weight, simple assembly, low cost, safety and reliability, large air supply, low energy consumption, high reliability, and is beneficial to health. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The structure of the present invention will be further described below according to the accompanying drawings: Figure 1 It is a structural schematic diagram of the first embodiment of the present invention; Figure 2 is a schematic structural diagram of a second embodiment of the present invention; In the figure: 1 air pump exhaust nozzle, 2 rubber diaphragm plate, 3 connecting rubber diaphragm plate to drive magnetic rod oscillation connecting rod, 4 air pump housing, 5 "C" shaped horseshoe soft magnetic core, 6 rubber diaphragm plate and oscillation connecting rod connecting piece, 7 air pump base, 8 air pump housing and air pump end cover connecting piece, 9 air pump base and air pump housing connecting piece, 10 air pump base and air pump housing shock-absorbing gasket, 11 excitation coil, 12 driving magnetic rod permanent magnet, 13 driving magnetic rod oscillation connecting rod shock-absorbing rubber column, 14 shock-absorbing rubber column positioning groove, 15 soft magnetic core fixed connecting piece, 16 rubber diaphragm plate and driving magnetic rod oscillation connecting rod connecting cap, 17 "I" shaped four-pole electromagnetic oscillation electromagnetic core.

[0021] like Figure 1 As shown: a single excitation coil 11 of an electromagnetic oscillation iron core induction permanent magnetic rod opposing opening and closing oscillation double low-noise air pump, an induction "C"-shaped horseshoe soft magnetic core 5, corresponding to a driving magnetic rod oscillation connecting rod 3, one end of the driving magnetic rod oscillation connecting rod 3, through the driving magnetic rod oscillation connecting rod shock-absorbing rubber cylinder 13, is inserted into the positioning groove 15 of the air pump housing, and the other end of the driving magnetic rod oscillation connecting rod 3 is compositely connected and fixed with a permanent magnet 12, forming the driving magnetic rod oscillation connecting rod 3, the middle of the driving magnetic rod oscillation connecting rod The part is connected and fixed with the two rubber diaphragm plates on both sides by driving the magnetic rod oscillation connecting rod shock-absorbing rubber cap 16 and the connecting piece 6. The two rubber diaphragm plates 2 are connected to the two air pump bases 7 in a suitable manner. The two air pump bases 7 are fixed to the air pump housing 4 through shock-absorbing washers 10 and connecting pieces 9. The air pump base 7 is provided with an air inlet and an air pump exhaust nozzle 1. The air pump exhaust nozzle 1 is connected and fixed to the opposite ends of the air pump housing 4, forming an electromagnetic oscillation iron core induction permanent magnetic rod opposing opening and closing oscillation double low-noise air pump with two air outlet nozzles 1.

[0022] like Figure 2 As shown: a single excitation coil 11 of an electromagnetic oscillation iron core induction permanent magnetic rod opposing opening and closing oscillation double low-noise air pump, induction "I"-shaped four-pole electromagnetic oscillation electromagnetic iron core 17 opposite two pairs of horseshoe-shaped magnetic poles, corresponding to a driving magnetic rod oscillation connecting rod 3, one end of the driving magnetic rod oscillation connecting rod 3, through the driving magnetic rod oscillation connecting rod shock-absorbing rubber cylinder 13, inserted into the positioning groove 15 of the air pump housing, the other end of the driving magnetic rod oscillation connecting rod 3 is compositely connected and fixed with a permanent magnet 12, forming the driving magnetic rod oscillation connecting rod 3, driving The middle part of the magnetic rod oscillation connecting rod is connected and fixed with the two rubber diaphragm plates on both sides by driving the magnetic rod oscillation connecting rod shock-absorbing rubber cap 16 and the connecting piece 6. The two rubber diaphragm plates 2 are connected to the two air pump bases 7 in a sleeve manner. The two air pump bases 7 are fixed to the air pump housing 4 through shock-absorbing washers 10 and connecting pieces 9. The air pump base 7 is provided with an air inlet and an air pump exhaust nozzle 1. The air pump exhaust nozzle 1 is connected and fixed to the opposite ends of the air pump housing 4, forming an electromagnetic oscillation iron core induction permanent magnetic rod opposing opening and closing oscillation double low-noise air pump with four air outlet nozzles 1.

Claims

1. The electromagnetic oscillation iron core induction permanent magnetic rod opposing opening and closing oscillation double low noise air pump includes an air pump base, a single electromagnetic oscillation two-pole iron core, an air pump cover, and a connecting driving magnetic rod, and its characteristics are: A single excitation coil induction "C"-shaped soft magnetic core is arranged in the air pump housing. The "C"-shaped two-pole soft magnetic core is composed of two "L"-shaped soft magnetic cores with a single excitation coil inserted on the same side, forming a "C"-shaped soft magnetic core composed of a "C"-shaped two-pole soft magnetic core and a single excitation coil, forming a two-pole electromagnetic oscillation electromagnet with horseshoe-shaped magnetic poles; A single excitation coil senses a "C"-shaped two-pole electromagnetic oscillation electromagnet horseshoe-shaped pole, corresponding to a driving magnetic rod oscillation connecting rod. One end of the driving magnetic rod oscillation connecting rod is inserted into the positioning groove of the air pump housing through the driving magnetic rod oscillation connecting rod shock-absorbing rubber cylinder. The other end of the driving magnetic rod oscillation connecting rod is compositely connected and fixed with a permanent magnet to form the driving magnetic rod oscillation connecting rod. The middle part of the driving magnetic rod oscillation connecting rod is connected and fixed to two rubber diaphragm plates on both sides through the driving magnetic rod oscillation connecting rod. The two rubber diaphragm plates are suitably connected to two air pump bases. The two air pump bases are sealed and fixed to the air pump housing through shock-absorbing gasket connectors. An air inlet and an air outlet are provided on the air pump base. The air outlet is connected and fixed to the opposite sides of the air pump housing through an air outlet pipe. Alternating current is passed into a single excitation coil to generate an alternating induction magnetic field. The alternating induction magnetic field generated by the single excitation coil forms a "C"-shaped horseshoe-shaped two-pole electromagnetic oscillation electromagnet at the open end of the "C"-shaped soft magnetic core. A permanent magnet corresponding to a driving magnetic rod oscillation connecting rod of a pair of alternating induction magnetic field horseshoe-shaped magnetic poles interacts with each other according to the principle of like repels like and opposites attract, drives the magnetic rod oscillation connecting rod, and drives the two rubber diaphragms on the opposite sides to perform telescopic movement through the driving magnetic rod oscillation connecting rod connecting cap connecting piece in the middle of the driving magnetic rod oscillation connecting rod. The check valve groups in the two air pump bases connected by the two rubber diaphragms are opened and closed to realize the intake and exhaust of the two air pumps. An air inlet and an air outlet are provided on the air pump base. The air outlet is connected and fixed to the air pump housing through an air outlet pipe to form an electromagnetic oscillation iron core induction permanent magnetic rod opposing opening and closing oscillation double low-noise air pump; the air pump controls the power and output air pressure and air volume of the air pump through a power supply control device.

2. The electromagnetic oscillation iron core induction permanent magnetic rod opposing opening and closing oscillation double low noise air pump includes an air pump base, a single electromagnetic oscillation quadrupole iron core, an air pump cover, and a connecting driving magnetic rod, and its characteristics are: A single excitation coil induction "I"-shaped four-pole soft magnetic core is provided in the middle of the air pump housing. The "I"-shaped four-pole soft magnetic core is composed of two "T"-shaped soft magnetic cores inserted into a single excitation coil, forming a four-pole electromagnetic oscillation electromagnet with two pairs of horseshoe-shaped magnetic poles formed at the open ends of the "I"-shaped soft magnetic core composed of the "I"-shaped four-pole soft magnetic core and the single excitation coil; A single excitation coil senses two pairs of horseshoe-shaped magnetic poles of an "I"-shaped four-pole electromagnetic oscillation electromagnet, corresponding to two driving magnetic rod oscillation connecting rods. One end of each driving magnetic rod oscillation connecting rod is inserted into a positioning groove of an air pump housing through a driving magnetic rod oscillation connecting rod shock-absorbing rubber cylinder. The other end of the driving magnetic rod oscillation connecting rod is compositely connected and fixed with a permanent magnet to form a driving magnetic rod oscillation connecting rod. The middle part of the driving magnetic rod oscillation connecting rod is connected and fixed with two rubber diaphragm plates on both sides through the driving magnetic rod oscillation connecting rod. The two rubber diaphragm plates are suitably connected to two air pump bases. The two air pump bases are sealed and fixed to the air pump housing through a shock-absorbing washer connector. An air inlet and an air outlet are provided on the air pump base. The air outlet is connected and fixed to the opposite ends of the air pump housing through an air outlet pipe to form an electromagnetic oscillation iron core induction permanent magnetic rod opposing opening and closing oscillation double-link low-noise air pump with four air outlets. The air pump controls the power and output air pressure and volume of the air pump through a power supply control device. Alternating current is passed through a single excitation coil to generate an alternating induction magnetic field. The alternating induction magnetic field generated by the single excitation coil forms a four-pole electromagnetic oscillation electromagnet with two pairs of horseshoe-shaped magnetic poles of the same magnetic poles on the upper and lower sides of the "I"-shaped soft magnetic core at the open ends on both sides. A permanent magnet corresponding to a driving magnetic rod oscillation connecting rod of a pair of alternating induction magnetic field horseshoe-shaped magnetic poles interacts with each other according to the principle that like repels like and opposites attract, drives the magnetic rod oscillation connecting rod, and drives two rubber diaphragm plates on both sides to perform telescopic movement through a driving magnetic rod oscillation connecting rod connecting cap connecting piece in the middle of the driving magnetic rod oscillation connecting rod. The two rubber diaphragm plates are set to connect two air pump bases, and the check valve group in the two air pump bases realizes the intake and exhaust of the two air pumps by opening and closing. An air inlet and an air outlet are provided on the air pump base. The air outlet is connected and fixed to the opposite ends of the air pump housing through an air outlet pipe to form an electromagnetic oscillation iron core induction permanent magnetic rod opposing opening and closing oscillation double low-noise air pump with four air outlets. The air pump controls the power and output air pressure and air volume of the air pump through a power supply control device.

3. The electromagnetic oscillation iron core induction permanent magnetic rod opposing opening and closing oscillation double low noise air pump according to claim 1 or 2, characterized in that: The column seat partition of the air pump is provided with two check valves and an air inlet chamber, a pressure air hole is provided in the middle, and an air storage chamber is provided in the lower part. A convex ring is provided around the bottom of the air pump, and the top of the air pump of the air pump column seat is connected to a rubber diaphragm plate; the two rubber diaphragm plates are fixedly connected to the driving oscillation connecting rod with their backs facing each other, and the two rubber diaphragm plates are sealed and connected to the air pump set. The air pump is fixed to the air pump housing through a shock-absorbing washer, and an air inlet and a one-way air inlet valve are provided on the air pump. The air pump is provided with an air outlet, and the air outlet is provided with a one-way air outlet valve, the one-way air outlet valve is connected to the air outlet pipe, the air outlet pipe is fixedly led out through the air pump housing, and a locking pipe connection barb is provided on the air outlet pipe nozzle.

4. The electromagnetic oscillation iron core induction permanent magnetic rod opposing opening and closing oscillation double low noise air pump according to claim 1 or 2, characterized in that: A rubber cylinder for fixing an oscillating connecting rod is arranged at the lower part of one side of the air pump fixing seat, and the end of the oscillating connecting rod driving the magnetic rod may be a shock absorbing spring.

5. The electromagnetic oscillation iron core induction permanent magnetic rod opposing opening and closing oscillation double low noise air pump according to claim 1 or 2, characterized in that: The two air pumps are respectively provided with an air outlet pipe, and the air outlet pipe nozzle is connected with the air outlet nozzle through a plastic tube.

6. The electromagnetic oscillation iron core induction permanent magnetic rod opposing opening and closing oscillation double low noise air pump according to claim 1 or 2, characterized in that: The air pump housing may be a double-layer or multi-layer composite housing, and sound insulation materials are arranged between the composite housings.

7. An electromagnetic oscillation structure for reducing the noise of an air pump, which realizes the electromagnetic oscillation iron core induction permanent magnetic rods opposing opening and closing oscillation double low-noise air pump as described in claim 1 or 2, characterized in that: The electromagnetic oscillation single excitation coil induces a "C"-shaped two-pole electromagnetic oscillation electromagnet horseshoe-shaped pole, which corresponds to a driving magnetic rod oscillation connecting rod. One end of the driving magnetic rod oscillation connecting rod is inserted into the positioning groove of the air pump housing through the driving magnetic rod oscillation connecting rod shock-absorbing rubber cylinder. The other end of the driving magnetic rod oscillation connecting rod is compositely connected and fixed with a permanent magnet to form the driving magnetic rod oscillation connecting rod. The middle part of the driving magnetic rod oscillation connecting rod is connected and fixed with two rubber diaphragm plates on both sides through the driving magnetic rod oscillation connecting rod. The two rubber diaphragm plates are suitably connected to two air pump bases, and the two air pump bases are sealed and fixed on the air pump housing through shock-absorbing gasket connectors. When the air pump on one side is inhaled, the air pump on the other side is exhausted, and synchronous resonance cannot be generated, thereby reducing noise; Or a single excitation coil senses two pairs of horseshoe-shaped magnetic poles of an "I"-shaped four-pole electromagnetic oscillation electromagnet, corresponding to a driving magnetic rod oscillation connecting rod. One end of the driving magnetic rod oscillation connecting rod is inserted into a positioning groove of an air pump housing through a driving magnetic rod oscillation connecting rod shock-absorbing rubber cylinder. The other end of the driving magnetic rod oscillation connecting rod is compositely connected and fixed with a permanent magnet to form a driving magnetic rod oscillation connecting rod. The middle part of the driving magnetic rod oscillation connecting rod is connected and fixed to two rubber diaphragm plates on both sides through the driving magnetic rod oscillation connecting rod. The two rubber diaphragm plates are suitably connected to two air pump bases, and the two air pump bases are sealed and fixed to the air pump housing through shock-absorbing gasket connectors. When one side of the air pump is inhaling, the other side of the air pump is exhausted, and synchronous resonance cannot be generated, thereby reducing noise; Two oscillating permanent magnetic connecting rods arranged in the middle of the four air pumps driven by two pairs of back-to-back magnetic poles must be arranged diagonally with the two pairs of magnetic poles of the "I"-shaped electromagnet so that the oscillations cancel each other out, that is, the diagonal oscillation of the permanent magnetic connecting rods is synchronously approached and separated with the axis, so that the oscillating permanent magnetic connecting rods produce counter-oscillations with each other, that is, one of the permanent magnets of the two oscillating permanent magnetic connecting rods is an N pole or an S pole, and the other is an S pole or an N pole, and they repel each other with the same poles and attract each other with the opposite poles at the same time as the N pole and the S pole of the electromagnet, that is, they oscillate diagonally inward and diagonally outward at the same time, so that the balance center is always kept in the middle of the magnetic poles, and the diagonal balance of the oscillation centers is maintained between each other; through this structure, the oscillations can be offset from each other, the resonance is reduced, and thus the noise is reduced.

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