CN201843759U

CN201843759U - Air pump

Info

Publication number: CN201843759U
Application number: CN2010205591541U
Authority: CN
Inventors: 季贵龚
Original assignee: JIANGSU FOLEE MEDICAL EQUIPMENT CO Ltd
Current assignee: JIANGSU FOLEE MEDICAL EQUIPMENT CO Ltd
Priority date: 2010-10-13
Filing date: 2010-10-13
Publication date: 2011-05-25
Anticipated expiration: 2020-10-13

Abstract

The utility model relates to an air pump used in application occasions such as medical equipment, household fish tanks, and the like. The air pump comprises a shell, a magnet coil is arranged in the middle of the shell, a magnet capable of moving axially is arranged in the magnet coil; two air chambers are symmetrically arranged at the left side and the right side of the magnet; each air chamber is separated into an inner chamber and an outer chamber by a baffle inside the air chamber; the inner side of each inner chamber is closed by a rubber pad; the two rubber pads closing the two inner chambers are connected at the left end and the right end of the magnet and generate deformation along the movement of the magnet; each outer chamber is separated into an air inlet chamber and an air outlet chamber by a baffle inside the outer chamber; the two air inlet chambers are communicated with the inner chambers by an air inlet one-way valve; the two air outlet chambers are communicated with the inner chambers through an air outlet one-way valve; and the air inlet chambers and the air outlet chambers are respectively communicated with the air inlet and the air outlet on the shell through separated channels. In the utility model, the magnet is driven to move in a reciprocating way by utilizing the magnet coil; air suction and exhaust are realized; the air pump has the advantages of simple structure, reliable action, low noise, low temperature rise, stable air flow and pressure.

Description

Air pump

Technical field

The utility model relates to a kind of air pump that is used for applications such as medical equipment, family expenses fish jar.

Background technique

Existing small air pump is prolonged the basic structure with large-scale air pump mostly, and usually by motor driving, its operational noise is big, temperature rise, flow and the pressure transient of giving vent to anger, and is difficult to satisfy higher application requirements.

Summary of the invention

Technical problem to be solved in the utility model is, provide a kind of simple in structure, noise is low, air-flow is steady, the fixed reliable air pump of operation.

Air pump of the present utility model includes a housing, and housing middle part is equipped with an electromagnetic coil, and being provided with one in the electromagnetic coil can axially movable magnet; The magnet and arranged on left and right sides is symmetrically arranged with two air cavitys, and air cavity is divided into inside and outside two parts by its inner dividing plate, is inner chamber near the part of magnet one side wherein, is exocoel away from the part of magnet one side; Each inner chamber inboard is sealed by a rubber pad, and the rubber pad of two inner chambers of sealing is connected to the two ends, the left and right sides of magnet, and can be out of shape along with moving of magnet; Described exocoel is divided into air-inlet cavity and outlet chamber by its inner dividing plate; Air-inlet cavity communicates with inner chamber by breather check valve, is used for sucking gas to inner chamber; Outlet chamber communicates with inner chamber by outgassing nonreturn valve, is used for discharging gas from inner chamber; Air-inlet cavity and outlet chamber are communicated with suction port and air outlet on the housing respectively by the passage of mutually isolating.

Described housing bottom is provided with an interlayer, and the inner chamber of interlayer is separated into total air-inlet cavity and total two parts of outlet chamber, and described suction port and air outlet lay respectively on the sidewall of total air-inlet cavity and total outlet chamber; Total air-inlet cavity top is provided with and the inlet hole that leads to housing upper chamber middle part, and is communicated with the above-mentioned air-inlet cavity that is positioned at both sides by housing upper chamber middle part; Total outlet chamber top is provided with towards the air outlet hole of housing upper chamber both sides, and is communicated with the above-mentioned outlet chamber that is positioned at both sides by housing upper chamber both sides.

The utility model utilizes the to-and-fro motion of electromagnetic coil drive magnet, realizes that the cycle of the volume of left and right two air cavitys changes, and realizes air-breathing and circulation exhaust, and it is simple in structure, reliable in action, noise is little, temperature rise is low, gas flow and pressure stability.

Description of drawings

Fig. 1 is the utility model embodiment's a front sectional structure schematic representation;

Fig. 2 is the B cross-sectional view of Fig. 1;

Fig. 3 is the plane structure schematic representation of the utility model embodiment's housing bottom interlayer.

Embodiment

As shown in the figure, the air pump of present embodiment includes a housing 1, housing middle part is equipped with an electromagnetic coil 2, and being provided with one in the electromagnetic coil can axially movable magnet 3, and the alternating magnetic field that produces when electromagnetic coil is connected Ac can make magnet shaft move to repeating; The magnet and arranged on left and right sides is symmetrically arranged with two air cavitys 4, and air cavity is divided into inside and outside two parts by its inner dividing plate, is inner chamber 41 near the part of magnet one side wherein, is exocoel 42 away from the part of magnet one side; Each inner chamber inboard is by 43 sealings of a rubber pad, and the rubber pad 43 of two inner chambers 41 of sealing is connected to the two ends, the left and right sides of magnet 3, and can be out of shape along with moving of magnet, and then changes the volume of inner chamber 41; Exocoel 42 is divided into air-inlet cavity 421 and outlet chamber 422 by its inner dividing plate; Air-inlet cavity 421 communicates with inner chamber 41 by breather check valve 44, is used for sucking gas to inner chamber 41; Outlet chamber 422 communicates with inner chamber 41 by outgassing nonreturn valve 45, is used for discharging gas from inner chamber 41; Air-inlet cavity 421 and outlet chamber 422 is communicated with suction port 11 and air outlet 12 on the housing respectively by the passage of isolating mutually.

Housing 1 bottom is provided with an interlayer, and the inner chamber of interlayer is separated into total air-inlet cavity 13 and total 14 two parts of outlet chamber, and suction port 11 and air outlet 12 lay respectively on the sidewall of total air-inlet cavity 13 and total outlet chamber 14; Total air-inlet cavity 13 tops are provided with and the inlet hole 15 that leads to housing upper chamber middle part, and are communicated with the air-inlet cavity 421 that is positioned at both sides by the middle part of housing upper chamber; Total outlet chamber 14 tops are provided with towards the air outlet hole 16 of housing upper chamber both sides, and are communicated with the outlet chamber 422 that is positioned at both sides by the both sides of housing upper chamber.

As shown in Figure 1, the utility model embodiment's working procedure is as follows:

Breathing process, when mobile drive rubber pad 43 distortion of magnet 3, when making inner chamber 41 volumes of air cavity 4 become big, gas is inhaled into inner chamber 41 through suction port 11, total air-inlet cavity 13, inlet hole 15, air-inlet cavity 421, breather check valve 44 successively;

Exhaust process, when mobile drive rubber pad 43 distortion of magnet 3, when inner chamber 41 volumes of air cavity 4 were diminished, gas was discharged from inner chamber 41, sends through outgassing nonreturn valve 45, outlet chamber 422, air outlet hole 16, total outlet chamber 14, air outlet 12 successively.

Because moving back and forth of magnet makes left and right two air cavitys 4 hocket air-breathing and exhaust, be connected mutually, make their common suction ports 11 and air outlet 12 can access stable air-flow.

The utility model can be used for some gas pressures less demanding but to stability and quiet occasion of having relatively high expectations, as air feed to some small-sized medical equipment such as anti-bedsore mattress.

Claims

1. air pump, it is characterized in that: it includes a housing (1), and the housing middle part is equipped with an electromagnetic coil (2), and being provided with one in the electromagnetic coil can axially movable magnet (3); The magnet and arranged on left and right sides is symmetrically arranged with two air cavitys (4), and air cavity is divided into inside and outside two parts by its inner dividing plate, is inner chamber (41) near the part of magnet one side wherein, is exocoel (42) away from the part of magnet one side; Each inner chamber inboard is by a rubber pad (43) sealing, and the rubber pad (43) that seals two inner chambers (41) is connected to the two ends, the left and right sides of magnet (3), and can be out of shape along with moving of magnet; Exocoel (42) is divided into air-inlet cavity (421) and outlet chamber (422) by its inner dividing plate; Air-inlet cavity (421) communicates with inner chamber (41) by breather check valve (44), is used for sucking gas to inner chamber (41); Outlet chamber (422) communicates with inner chamber (41) by outgassing nonreturn valve (45), is used for discharging gas from inner chamber (41); Air-inlet cavity (421) and outlet chamber (422) are communicated with suction port (11) and air outlet (12) on the housing respectively by the passage of mutually isolating.

2. air pump according to claim 1, it is characterized in that: housing (1) bottom is provided with an interlayer, the inner chamber of interlayer is separated into total air-inlet cavity (13) and total (14) two parts of outlet chamber, and suction port (11) and air outlet (12) lay respectively on the sidewall of total air-inlet cavity (13) and total outlet chamber (14); Total air-inlet cavity (13) top is provided with and the inlet hole (15) that leads to housing upper chamber middle part, and is communicated with the air-inlet cavity that is positioned at both sides (421) by the middle part of housing upper chamber; Total outlet chamber (14) top is provided with the air outlet hole (16) towards housing upper chamber both sides, and is communicated with the outlet chamber that is positioned at both sides (422) by the both sides of housing upper chamber.