CN211116530U

CN211116530U - Small diaphragm air pump

Info

Publication number: CN211116530U
Application number: CN201921011270.7U
Authority: CN
Inventors: 侯永昌
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-07-02
Filing date: 2019-07-02
Publication date: 2020-07-28
Anticipated expiration: 2029-07-02

Abstract

The utility model aims at providing a small-size diaphragm air pump. The diaphragm air pump has the working principle that: a coil is arranged in an annular fixed magnetic field gap formed by the magnet and the magnetizer, and when the coil is switched on with alternating current, the coil and the coil framework can drive the pump diaphragm to generate axial reciprocating motion in the pump body under the interaction of the fixed magnetic field and the alternating magnetic field; the coil framework is connected with a pump diaphragm provided with a diaphragm connecting frame through a coil fixing frame and a multifunctional connecting frame, one end of an elastic centering cavity is fixed with the multifunctional connecting frame, the other end of the elastic centering cavity is fixed with an inner magnetizer to realize centering, and compressed air is continuously output from an exhaust pipe through matching with an air inlet valve and an exhaust valve during working; the vibration absorber is composed of a vibration absorber assembly support, a vibration absorber rubber body and a vibration absorber shell support, so that the diaphragm air pump assembly is suspended in the shell, and the small diaphragm air pump is small in size, high in pressure and high in efficiency.

Description

Small diaphragm air pump

Technical Field

The utility model relates to an oxygenation air pump especially relates to a small-size diaphragm air pump.

Background

At present, the small-sized oxygen-increasing air pump is of a motor-driven type, a piezoelectric ceramic type and more electromagnetic driving types, and compared with the existing small-sized oxygen-increasing air pump, the small-sized oxygen-increasing air pump is large in size, low in efficiency and small in pressure.

Disclosure of Invention

The utility model aims at providing a small-size diaphragm air pump. The diaphragm air pump has the working principle that: a coil is arranged in a fixed magnetic field gap formed by a magnet and a magnetizer, when the coil is switched on with alternating current, the coil can generate an alternating magnetic field, under the interaction of the fixed magnetic field and the alternating magnetic field, the coil on a coil framework can be sucked or pushed out to generate axial reciprocating motion, and the coil framework can drive a pump diaphragm to synchronously move in a pump body; the coil framework is connected with the pump diaphragm provided with the diaphragm connecting frame through the coil fixing frame and the multifunctional connecting frame, the fixed ends of the multifunctional connecting frame and the coil fixing frame are also fixed with one end of the elastic centering cavity, the other end of the elastic centering cavity is fixed with the inner magnetizer to realize centering, and the coil framework are suspended in a magnetic field gap through the pump diaphragm and the elastic centering cavity; when the coil is sucked, the diaphragm in the pump body is pulled out, the air inlet valve is opened, the air outlet valve is closed, air enters the inner shell cavity of the pump body through the air inlet channel of the outer shell, the air inlet channel on the magnetizer, the gap between the magnet and the magnetizer, the gap between the coil and the coil framework and the magnetic field, the coil vent hole, and then enters the pump chamber through the air inlet pipe and the air inlet valve, and the volume of the pump chamber is increased; when the coil is pushed out, the pump diaphragm is pushed into the pump body, the air inlet valve is closed, the exhaust valve is opened, the volume of the pump chamber is reduced, compressed air is continuously output from the exhaust pipe through the silencer, and the diaphragm can repeat the process along with the power frequency. The arrangement of the air inlet path is beneficial to taking away weak heat generated on the coil. The oxygen-increasing air pump has small volume, large pressure and high efficiency.

The technical scheme of the utility model: the electromagnetic driving part consists of a cylindrical magnet, an outer magnetizer and an inner magnetizer, and an annular high-intensity magnetic field gap is formed between the magnet and the magnetizer. The outer magnetizer is hollow and cylindrical, the bottom of the outer magnetizer is provided with an air inlet channel on the side surface of the bottom of the outer magnetizer, and the cylindrical magnet is arranged in the outer magnetizer; the inner magnetizer is in a thick disc shape, has a diameter larger than that of the cylindrical magnet and is arranged above the cylindrical magnet; the coil and the coil framework are arranged in a high-intensity magnetic field gap, and the coil framework is made of an insulating metal composite material and is fixed with the coil fixing frame; the elastic centering cavity is made of rubber or a reticular textile material and has good axial elasticity, the air vent of the elastic centering cavity is beneficial to reducing the movement resistance and the noise, one end of the elastic centering cavity is fixed with the inner magnetizer, the other end of the elastic centering cavity is fixed with the coil fixing frame provided with the coil framework after being fixed with the multifunctional connecting frame with the air vent of the elastic centering cavity, and the shallow groove on the inner magnetizer is convenient for the positioning of the elastic centering cavity during the fixing; the tail end of the inner shell of the pump body is fixed with the outer magnetizer, the pump diaphragm embedded with the diaphragm connecting frame is arranged in the pump shell at the front end of the inner shell of the pump body, the diaphragm connecting frame and the multifunctional connecting frame are fixed together by screws, then the pump end cover provided with the air inlet valve and the exhaust valve is tightly combined with the pump diaphragm in the pump shell at the front end of the inner shell of the pump body to form a diaphragm air pump, and the pump end cover is locked by a 7-shaped head on the inner shell of the pump body after being arranged; after the pump body inner shell is combined with the front end of the outer magnetizer and the pump end cover, the electromagnetic driving part and the diaphragm air pump part are sealed together to form an oxygenation air pump assembly, and the noise generated by electromagnetic vibration is subjected to primary shielding. The coil and the coil framework are supported by the elastic centering cavity and the pump diaphragm to be suspended in a magnetic field gap, so that the first-stage damping is realized while the power is output and the noise is reduced. The shock absorber comprises shock absorber assembly support, shock absorber rubber body, shock absorber shell support, is connected through 3 to 8 shock absorbers between diaphragm air pump assembly and the shell, makes diaphragm air pump assembly suspension in the shell, and this shock absorber has good buffering effect, but maximum reduction and absorption by the coil, the axial vibrations that the diaphragm produced, have realized the shock attenuation of second level. The bottom of the shell is provided with an air inlet hole with a filtering device, and the shell with good sealing can be used for carrying out secondary shielding on noise generated by electromagnetic vibration. And the rubber foot pad at the bottom of the shell is used for damping the third pole.

The utility model discloses a small-size diaphragm air pump, it includes shell, outer magnetizer, interior magnetizer, cylinder magnet, inlet channel, coil skeleton, coil, elasticity centering chamber, multi-functional link, pump body inner shell, coil mount, coil air vent, elasticity centering chamber air vent, pump diaphragm, pump end cover, diaphragm link, screw, discharge valve, admission valve, intake pipe, bumper shock absorber assembly support, bumper shock absorber rubber body, bumper shock absorber shell support; the outer magnetizer, the cylindrical magnet and the inner magnetizer are combined to form an annular high-intensity magnetic field gap; the side surface of the bottom of the outer magnetizer is provided with the air inlet channel; the coil is arranged on the coil framework, and the coil framework is fixed with the coil fixing frame and is arranged in the annular high-intensity magnetic field gap; one end of the elastic centering cavity is fixed with the inner magnetizer, the other end of the elastic centering cavity is fixed with the multifunctional connecting frame, the periphery of the multifunctional connecting frame is fixed with the coil fixing frame, and the multifunctional connecting frame is provided with the coil vent hole and the elastic centering cavity vent hole; the tail end of the inner shell of the pump body is fixed with the outer magnetizer; a diaphragm connecting frame is embedded in a central hole of the pump diaphragm, and the pump diaphragm is arranged in a pump shell at the front end of the inner shell of the pump body; the screw penetrates through the diaphragm connecting frame hole to fix the pump diaphragm and the multifunctional connecting frame; the pump end cover is provided with the air inlet valve and the air outlet valve, and the pump end cover is tightly combined with the pump diaphragm in the pump shell at the front end of the pump body inner shell and then locked by the 7-shaped head on the pump body inner shell to form a diaphragm air pump; an air inlet pipe is arranged between the air inlet valve and the pump body inner shell, and after the pump body inner shell is fixed with the front end of the outer magnetizer and the pump end cover, the electromagnetic driving part and the diaphragm air pump part are sealed together to form a diaphragm air pump assembly; the vibration absorber is composed of a vibration absorber assembly support, a vibration absorber rubber body and a vibration absorber shell support, and the diaphragm air pump assembly is connected with the shell through 3 to 8 vibration absorbers so that the diaphragm air pump assembly is suspended in the shell.

The upper portion of the inner magnetizer is provided with a shallow groove which is consistent with the shape of the connecting end of the elastic centering cavity, the elastic centering cavity is convenient to position when being fixed, and the connecting position of the upper portion of the inner magnetizer and the elastic centering cavity can be still a plane without the shallow groove.

The elasticity is centering the chamber and is being made with rubber or netted textile material, and the cavity shape is big-end-up's turriform, does about doing and be the constant diameter, elasticity centering chamber has good axial elasticity and supporting role, elasticity centering chamber one end with interior magnetizer is fixed, the other end with multi-functional link is fixed, with one that multi-functional link is fixed serve porosely, fixed back with elasticity centering chamber air vent is corresponding, the preparation of netted textile material elasticity centering chamber has good gas permeability, can not set up elasticity centering chamber air vent.

The multifunctional connecting frame is fixed with the coil fixing frame fixed on the coil framework, one surface fixed with the elastic centering cavity is recessed inwards, and a compressed cavity can enter the recessed part; the middle part of the other side of the multifunctional connecting frame is raised, threads are arranged in the center hole of the raised part, and the screw penetrates through the hole of the diaphragm connecting frame to fix the pump diaphragm on the multifunctional connecting frame.

The diaphragm link span is spool form, and the diameter of inslot is slightly greater than the diameter of pump diaphragm centre bore, the width in groove slightly is less than the thickness around the pump diaphragm centre bore, the diaphragm link span embedding behind the pump diaphragm hole, combine firmly, sealed, the screw of diaphragm link span into the end, will coincide with the screw.

The air inlet channel is arranged on the wall of the outer magnetizer close to the bottom, one end of the air inlet pipe is connected with the front end of the inner shell of the pump body, the end of the air inlet pipe and the air inlet channel are not in the same direction, and the other end of the air inlet pipe is connected with the air inlet valve.

The vibration absorber assembly support, the vibration absorber rubber body and the vibration absorber shell support form a vibration absorber, the vibration absorber assembly support and the vibration absorber shell support are L-shaped and are respectively fixed with the diaphragm air pump assembly and the shell, the vibration absorber rubber body is annular and sleeved on the vibration absorber assembly support and the vibration absorber shell support, the mushroom head shape can prevent the vibration absorber rubber body from sliding out, the number of the vibration absorbers can be 3-8, 3 vibration absorbers are shown in the figure, 1 group of 3 vibration absorbers or 4 vibration absorbers can be mounted on one pump, and 2 groups of 6 vibration absorbers or 8 vibration absorbers can be mounted on the pump.

The coil and the coil bobbin are supported by the elastic centering cavity and the pump diaphragm to be suspended in a magnetic field gap.

Drawings

FIG. 1 is a front view

FIG. 2 is a view A-A of FIG. 1

FIG. 3 is a view from B-B of FIG. 1

FIG. 4 is a view C of FIG. 1

FIG. 5 is a view from direction D of FIG. 4

A housing-1; an outer magnetizer-2; an inner magnetizer-3; a cylindrical magnet-4; an air inlet passage-5; a coil framework-6; a coil-7; an elastic centering cavity-8; a multifunctional connecting frame-9; a pump body inner shell-10; a coil fixing frame-11; a coil vent-12; elastic centering cavity vent-13; pump diaphragm-14; pump end cap-15; a membrane connecting frame-16; screw-17; an exhaust valve-18; -19, an inlet valve; an air inlet pipe-20; a shock absorber assembly support-21; a damper rubber body-22; shock absorber housing bracket-23.

Detailed Description

Example (b): as shown in fig. 1, 2, 3, 4 and 5, a small diaphragm oxygen-increasing air pump, wherein a coil 7 is arranged on a coil frame 6, the coil frame 6 is fixed on a coil fixing frame 11 and is arranged in a strong magnetic field gap formed by combining an outer magnetizer 2, a cylindrical magnet 4 and an inner magnetizer 3, one end of an elastic positioning cavity 8 is fixed on the inner magnetizer 3, the other end is fixed with a multifunctional connecting frame 9, the multifunctional connecting frame 9 is provided with a coil vent hole 12 and an elastic centering cavity vent hole 13, the tail end of a pump body inner shell 10 is fixed with the outer magnetizer 2, a diaphragm connecting frame 16 is embedded in the middle of a pump diaphragm 14, the pump diaphragm 14 is arranged in a pump shell at the front end of the pump body inner shell 10, a screw 17 passes through a central hole of the diaphragm connecting frame 16 to fix the pump diaphragm 14 and the multifunctional connecting frame 9, an air inlet valve 19 and an air outlet valve 18 are arranged on a pump end, the shock absorber assembly support 21, the shock absorber rubber body 22 and the shock absorber shell support 23 form a shock absorber, and the shock absorber shell support 23 is fixed with the shell 1.

Claims

1. The small diaphragm air pump comprises an outer shell, an outer magnetizer, an inner magnetizer, a cylindrical magnet, an air inlet channel, a coil framework, a coil, an elastic centering cavity, a multifunctional connecting frame, a pump body inner shell, a coil fixing frame, a coil vent hole, an elastic centering cavity vent hole, a pump diaphragm, a pump end cover, a diaphragm connecting frame, a screw, an exhaust valve, an air inlet pipe, a shock absorber assembly support, a shock absorber rubber body and a shock absorber outer shell support; the magnetic field sensor is characterized in that an annular high-intensity magnetic field gap is formed after the outer magnetizer, the cylindrical magnet and the inner magnetizer are combined; the side surface of the bottom of the outer magnetizer is provided with the air inlet channel, the coil is arranged on the coil framework, and the coil framework is fixed with the coil fixing frame and is arranged in the annular high-intensity magnetic field gap; one end of the elastic centering cavity is fixed with the inner magnetizer, the other end of the elastic centering cavity is fixed with the multifunctional connecting frame, the periphery of the multifunctional connecting frame is fixed with the coil fixing frame, and the multifunctional connecting frame is provided with the coil vent hole and the elastic centering cavity vent hole; the tail end of the pump body inner shell is fixed with the outer magnetizer, a diaphragm connecting frame is arranged in a center hole of the pump diaphragm, and the pump diaphragm is arranged in a pump shell at the front end of the pump body inner shell; the screw penetrates through the diaphragm connecting frame hole to fix the pump diaphragm and the multifunctional connecting frame; the pump end cover is provided with the air inlet valve and the air outlet valve, and the pump end cover is tightly combined with the pump diaphragm in the pump shell at the front end of the pump body inner shell and then locked by the 7-shaped head on the pump body inner shell to form a diaphragm air pump; an air inlet pipe is arranged between the air inlet valve and the pump body inner shell, and after the pump body inner shell is fixed with the front end of the outer magnetizer and the pump end cover, the electromagnetic driving part and the diaphragm air pump part are sealed together to form a diaphragm air pump assembly; the vibration absorber is composed of a vibration absorber assembly support, a vibration absorber rubber body and a vibration absorber shell support, and the diaphragm air pump assembly is connected with the shell through 3 to 8 vibration absorbers so that the diaphragm air pump assembly is suspended in the shell.

2. The miniature diaphragm air pump according to claim 1, wherein a shallow groove having a shape corresponding to the shape of the connection end of the elastic centering cavity is formed above the inner magnetizer, so that the positioning is facilitated when the elastic centering cavity is fixed, and the connection part of the elastic centering cavity and the upper part of the inner magnetizer may be a plane without a shallow groove.

3. The small diaphragm air pump as claimed in claim 1, wherein the elastic centering chamber is made of rubber or a mesh-like textile material, the shape of the chamber is a tower shape with a small top and a large bottom, and the chamber can also have an equal diameter from top to bottom, the elastic centering chamber has axial flexibility and a supporting function, the end of the elastic centering chamber fixed with the multifunctional connecting frame is provided with a hole, and the fixed end of the elastic centering chamber corresponds to the vent hole of the elastic centering chamber, and the elastic centering chamber made of the mesh-like textile material has air permeability and can be free of the vent hole of the elastic centering chamber.

4. The miniature diaphragm air pump according to claim 1, wherein said multifunctional connecting frame is fixed to said coil fixing frame fixed to said coil frame, and one surface of said multifunctional connecting frame fixed to said elastic centering cavity is recessed inward, and the compressed cavity can enter the recess, two circles of holes are distributed on different radiuses in the recess, said elastic centering cavity vent hole is communicated with said elastic centering cavity, said coil vent hole is communicated with the interior of said coil frame, the number and size of the holes are not limited, and the central holes of the convex and convex portions of the other surface of said multifunctional connecting frame are provided with threads, and said screws pass through the holes of said diaphragm connecting frame to fix said pump diaphragm to said multifunctional connecting frame.

5. The small diaphragm air pump of claim 1, wherein the diaphragm coupling frame is in a shape of a bobbin, the diameter of the groove is slightly larger than the diameter of the central hole of the pump diaphragm, the width of the groove is slightly smaller than the thickness of the periphery of the central hole of the pump diaphragm, the diaphragm coupling frame is embedded in the pump diaphragm hole, the combination is firm, the sealing is good, and the screw penetrating end of the diaphragm coupling frame is matched with the screw.

6. The miniature diaphragm air pump according to claim 1, wherein said air inlet channel is provided on a wall of said outer magnetic conductor near the bottom, one end of said air inlet tube is connected to a front end of said inner casing of said pump body, said end is not in the same direction as said air inlet channel, and the other end is connected to said air inlet valve.

7. The small diaphragm air pump according to claim 1, wherein the damper assembly bracket, the damper rubber body and the damper housing bracket form a damper, the damper assembly bracket and the damper housing bracket are L-shaped and are respectively fixed with the diaphragm air pump assembly and the housing, the damper rubber body is annular and is sleeved on the damper assembly bracket and the damper housing bracket, the mushroom head shape can prevent the damper rubber body from sliding out, the number of the dampers can be 3 to 8, 3 are shown in the figure, 1 group of 3 or 4 or 2 groups of 6 or 8 can be installed on one pump.

8. The miniature diaphragm air pump of claim 1 wherein said coil and said bobbin are suspended in a magnetic field gap supported by said elastic centering cavity and said pump diaphragm.