CN2551780Y

CN2551780Y - Gap type silencer air pump for fish jar

Info

Publication number: CN2551780Y
Application number: CN02226471U
Authority: CN
Inventors: 麦振强
Original assignee: Zhenhua Electrical Appliance Co ltd Xiaolan Town Zhongshan City
Current assignee: Zhenhua Electrical Appliance Co ltd Xiaolan Town Zhongshan City
Priority date: 2002-03-28
Filing date: 2002-03-28
Publication date: 2003-05-21
Anticipated expiration: 2012-03-28

Abstract

The utility model relates to a gap type silencing air pump for a fish jar, which has the advantages of simple structure and low noise. The gap type silencing air pump for a fish jar comprises a housing, an electromagnet assembly, a pump base, a bottom cap, a retaining valve and a packing rubber. The utility model is characterized in that the bottom cap which is positioned in an exhaust chamber extends a tube base into the exhaust chamber; the tube base is provided with a tube base hole; a silencing pipe in the exhaust chamber, which is arranged on the pump base extends into the tube base hole of the tube base; the silencing pipe is communicated with an air exhaust pipe which is arranged on the pump base. The utility model has the purpose the gap between the inner wall of the tube base on the bottom cover and the outer wall of the silencing pipe of the pump base is utilized to decrease the exhaust speed to reach the silencing effect.

Description

The fish jar air pump of clearance type noise reduction

Technical field:

The utility model relates to a kind of air pump, particularly a kind of fish jar air pump of clearance type noise reduction.

Technical background:

Existing fish jar air pump principle, be in air pump, to be provided with two controlling parties to communicate with the inner chamber of a rubber cup respectively mostly to opposite one-way valve, utilize the electric and magnetic oscillation of electromagnet to drive the rubber cup vibration, the one-way valve of closing the one-way valve of outlet passageway and opening gas-entered passageway when the cavity volume of rubber cup increases sucks air from atmosphere, and the one-way valve of closing the one-way valve of gas-entered passageway and opening outlet passageway when the cavity volume of rubber cup reduces is pressed into the air in the rubber cup in the exhaust chamber transfer task of going round and beginning again and finishing air.The shortcoming of this air pump is that noise is big, overslaugh the normal life of fish.

The notification number of on February 24th, 1993 bulletin is to disclose a kind of squelch type fish jar air pump among 2127244 the Chinese patent application ZL92207928, its method is that baffler is housed in air pump, this baffler has the secondary anechoic chamber, indoor have at least one by the flexuose air channel that has a corresponding wave-shaped side wall to reduce the velocity of sound and to reduce acoustic pressure, also be provided with the vibration of a shielded metal plate with absorption pump device of air unofficial biography at the base plate place of base.The shortcoming of this squelch type fish jar air pump is a complex structure.

Summary of the invention:

Technical problem:

In the existing Electromagnetically vibrating fish jar air pump because of having used electric and magnetic oscillation, so there is the big problem of noise, the notification number of on February 24th, 1993 bulletin is a disclosed squelch type fish jar air pump among 2127244 the Chinese patent application ZL92207928, has baroque problem.The purpose of this utility model provides a kind of fish jar air pump of simple in structure, clearance type noise reduction that noise is low.

Technological scheme:

The purpose of this utility model is achieved in that a kind of fish jar air pump of clearance type noise reduction, comprises shell, electromagnet assembly, pump seat, bottom, one-way valve, rubber cup; Wherein electromagnet assembly is fixed with by coil, iron core and an end that the magnet the other end links to each other with pump seat and can forms around the swing arm of connecting place swing; One-way valve is made up of unidirectional valve seat, valve film, plug, the both sides of unidirectional valve seat have groove, two grooves stagger mutually, axially having the air inlet through hole or going out vent hole along unidirectional valve seat in the groove, two plugs are pressed on bottom portion of groove with valve film one end respectively, the valve film stretches out the outer part of plug with the air inlet through hole or go out vent hole and cover, and two grooves and each self-corresponding valve film and two controlling parties of plug composition are to opposite one-way valve; The cavity that constitutes between pump seat and the bottom is divided into suction chamber and exhaust chamber, and pump seat is provided with two cavitys and communicates with suction chamber and exhaust chamber by outlet passageway and gas-entered passageway respectively; The fish jar air pump of described clearance type noise reduction is characterized in that having the base hole on the base stretch out a base on the bottom in exhaust chamber; In exhaust chamber, stretching out a hush pipe on the pump seat, this hush pipe stretches in the base hole of described base, hush pipe communicates with outlet pipe on being located at pump seat, its objective is that the base inwall that utilizes on the bottom and the gap between the hush pipe outer wall on the pump seat reduce exhaust velocity and come noise reduction.

The fish jar air pump of described clearance type noise reduction is characterized in that being provided with the suction tude of stretching to bottom along the inlet hole on the pump seat at described suction chamber; Bottom stretches out a baffle plate in suction chamber, between the suction tude and the outlet passageway in the suction chamber of this baffle plate in suction chamber, its effect is to flow to the air buffer function of suction chamber outlet passageway from suction tude.

Beneficial effect:

Owing to adopted technological scheme described in the utility model, when entering suction chamber, air at first is subjected to the buffering noise reduction of bottom overhead gage, air after compression passes through base hole on the base and the gap noise reduction between the hush pipe outer wall again from exhaust chamber when outlet pipe is discharged, greatly reduce the noise of air pump, and the suction tude on the baffle plate on the bottom and base, the pump seat and hush pipe are very simple and be easy to moulding.So the fish jar air pump of clearance type noise reduction described in the utility model has reached noise purpose low, simple in structure.

Description of drawings:

Fig. 1 is the three-dimensional exploded view of each element among the embodiment of fish jar air pump of clearance type noise reduction described in the utility model.

Fig. 2 is the described embodiment's of Fig. 1 a external view.

Fig. 3 is that the A-A of Fig. 2 is to sectional view.

Fig. 4 is that the B-B of Fig. 2 is to sectional view.

Fig. 5 is that the C-C of pump seat and bottom among Fig. 2 is to sectional view.

Fig. 6 is the right elevation of pump seat among Fig. 5.

Drawing explanation: 1-pump seat, 11a-suction chamber, 11b-exhaust chamber, 111a-cavity, the 111b-cavity, 112a-outlet passageway, 112b-gas-entered passageway, 113a-suction tude, the 113b-outlet pipe, 114a-inlet hole, 114b-exhaust port, 115-hush pipe, the 116-endoporus, 12-deck, 2-bottom, 201-baffle plate, the 202-base, 203-base hole, the unidirectional valve seat of 3-, 301a-air inlet through hole, 301b-goes out vent hole, 302a-groove, 302b-groove, 31a-valve film, 31b-valve film, 32a-plug, 32b-plug, 4-rubber cup, the 41-screw, 5-swing arm, 51-nut, 6-magnet, the 7-rubber column, 8-rubber cushion, 801a-through hole, the 801b-through hole, 9-coil, 10-iron core.

Embodiment:

In conjunction with Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5 and Fig. 6 as seen, the fish jar air pump of described clearance type noise reduction comprises shell (not drawing among the figure), electromagnet assembly, pump seat 1, bottom 2, one-way valve, rubber cup 4, rubber column 7, rubber cushion 8 and magnet 6; Wherein electromagnet assembly is made up of coil 9, iron core 10 and swing arm 5, one end of swing arm 5 is fixed with magnet 6 the other ends and is fixed with rubber column 7 and links to each other with deck 12 on the pump seat 1 by rubber column 7, makes swing arm 5 make to prop up spot wobbles with deck 12 under the electromagnetic action of coil 9 and iron core 10; One-way valve is made up of unidirectional valve seat 3, valve film 31a and 31b, plug 32a and 32b, the both sides of unidirectional valve seat 3 have groove 302a and 302b, two groove 302a and 302b stagger mutually, have air inlet through hole 301a in the groove 302a, have out vent hole 301b in the groove 302b, plug 32a and 32b are pressed on groove 302a and 302b bottom with valve film 31a and 31b one end, valve film 31a stretches out the outer part of plug 32a air inlet through hole 301a is covered, and valve film 31b stretches out the outer part of plug 32b and will go out vent hole 301b and cover; Groove 302a and air inlet through hole 301a thereof and valve film 31a and plug 32a form the one-way valve of opening to leather cup 4 directions, groove 302b and another one-way valve that goes out vent hole 301b and open to rubber cushion 8 directions with valve film 31b and plug 32b composition thereof; The cavity that constitutes between pump seat 1 and the bottom 2 is divided into suction chamber 11a and exhaust chamber 11b, pump seat 1 is provided with the cavity 111b that communicates with groove 302b on the unidirectional valve seat 3 by the through hole 801b on the rubber cushion 8, communicate by gas-entered passageway 112b between cavity 111b and the exhaust chamber 11b, pump seat 1 is provided with another cavity 111a and communicates with air inlet through hole 301a on the unidirectional valve seat 3 by the through hole 801a on the rubber cushion 8, communicates by outlet passageway 112a between cavity 111a and the exhaust chamber 11a; In exhaust chamber 11b, stretch out base 202 on the bottom 2 in exhaust chamber 11b, have base hole 203 on the base 202; The hush pipe 115 that is located in the exhaust chamber 11b on the pump seat 1 stretches in the base hole 203 of base 202, and hush pipe 115 communicates with the exhaust port 114b of outlet pipe 113b by endoporus 116, leaves the gap between the base hole 203 of base 202 and the outer wall of hush pipe 115; Suction chamber 11a on the pump seat 1 is provided with the suction tude 113a that stretches to bottom 2, and bottom 2 stretches out a baffle plate 201 in suction chamber 11a, and this baffle plate 201 is between the outlet passageway 112a of the suction tude 113a of suction chamber 11a and suction chamber 11a.

Leather cup 4 usefulness screws 41 and nut 51 are fixed in the swing arm 5, and coil 9 and iron core 10 are positioned at magnet 6 one sides, and when coil 9 led to Ac, magnet 6 drove leather cup 4 and swings under the effect of alternating magnetic field; When leather cup 4 is put to the right, the cavity that surrounds between leather cup 4 and the unidirectional valve seat 3 produces negative pressure, valve film 31b closes the vent hole 301b that goes out on the unidirectional valve seat 3, valve film 31a opens the air inlet through hole 301a on the unidirectional valve seat 3, and the air in the suction chamber 11a that communicates with atmosphere enters cavity 111a through outlet passageway 112a and is inhaled into the cavity that surrounds between leather cup 4 and the unidirectional valve seat 3 through the through hole 801a on the rubber cushion 8 again; When leather cup 4 is put left, air in the cavity that surrounds between leather cup 4 and the unidirectional valve seat 3 is compressed, valve film 31a closes the vent hole 301a that goes out on the unidirectional valve seat 3, valve film 31b on the unidirectional valve seat 3 is compressed air and outwards pushes up and air inlet through hole 301b is opened, and the pressurized air in the cavity that surrounds between leather cup 4 and the unidirectional valve seat 3 enters cavity 111b again in gas-entered passageway 112b enters exhaust chamber 11b through the through hole 801b that goes out on vent hole 301b and the rubber cushion 8 on the unidirectional valve seat 3; In the air pump working procedure, the air in the suction chamber 11a flows to outlet passageway 112a from inlet hole 114a process has reduced noise because of the buffer function that is subjected to baffle plate 201; Air in the exhaust chamber 11b flows to exhaust port 114b from gas-entered passageway 112b process has also reduced noise because of the buffer function in the gap between the outer wall of the inwall that is subjected to base 202 and hush pipe 115.

In order to increase the air demand of fish jar, the fish jar air pump of two clearance type noise reductions described in the utility model can be connected in parallel, those skilled in the art can realize on basis of the present utility model, and this scheme by Bao Han within the utility model, so be not described further at this.

Claims

1, a kind of fish jar air pump of clearance type noise reduction comprises shell, electromagnet assembly, pump seat (1), bottom (2), one-way valve, rubber cup (4); Wherein electromagnet assembly is fixed with by coil (9), iron core (10) and an end that magnet (6) the other end links to each other with pump seat (1) and can forms around the swing arm (5) of connecting place swing; One-way valve is by unidirectional valve seat (3), valve film (31a) and (31b), plug (32a) and (32b) form, the both sides of unidirectional valve seat (3) have groove (302a) and (302b), two grooves (302a) and (302b) stagger mutually, groove (302a) and (302b) in axially having air inlet through hole (301a) or going out vent hole (301b) along unidirectional valve seat (3), plug (32a) and (32b) respectively valve film (31a) and an end (31b) are pressed on groove (302a) and (302b) bottom, valve film (31a) and (31b) stretch out plug (32a) or (32b) outer part with air inlet through hole (301a) or go out vent hole (301b) and cover, two grooves (302a) and (302b) and each self-corresponding valve film (31a), plug (32a) and valve film (31b), plug (32b) is formed two controlling parties to opposite one-way valve; The cavity that constitutes between pump seat (1) and the bottom (2) is divided into suction chamber (11a) and exhaust chamber (11b), and pump seat (1) is provided with two cavitys (111a) and (111b) communicates with suction chamber (11a) and exhaust chamber (11b) by outlet passageway (112a) and gas-entered passageway (112b) respectively; The fish jar air pump of described clearance type noise reduction is characterized in that upward stretching out a base (202) in exhaust chamber (11b) at bottom (2), has base hole (203) on the base (202); Go up at pump seat (1) and stretch out a hush pipe (115) in exhaust chamber (11b), this hush pipe (115) stretches in the base hole (203) of described base (202), and hush pipe (115) communicates with outlet pipe (113) on being located at pump seat (1).

2, the fish jar air pump of clearance type noise reduction according to claim 1 is characterized in that being provided with the suction tude (113a) of stretching to bottom (2) along the inlet hole (114a) on the pump seat (1) in described suction chamber (11a); Bottom (2) stretches out a baffle plate (201) in suction chamber (11a), this baffle plate (201) is positioned between the outlet passageway (112a) of the suction tude (113a) of suction chamber (11a) and suction chamber (11a).