CN2127244Y

CN2127244Y - Air pump for live fish in receptacle without noise

Info

Publication number: CN2127244Y
Application number: CN 92207928
Authority: CN
Inventors: 蔡宪堂
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-04-28
Filing date: 1992-04-28
Publication date: 1993-02-24
Anticipated expiration: 2002-04-28

Abstract

The utility model relates to an air pump for an aquarium without noise, which is a low-noise aquarium air pump and comprises a pedestal 1, an outer cover 7, an inner cover 6 arranged in the outer cover 7, an air pump device 4 arranged in the inner cover 6. The utility model is characterized in that a soleplate 10 of the pedestal is provided with a metal plate 2 which can screen the vibrated sound wave; the inner cover 6 is provided with a silencer 5 which is communicated with the air pump device. The silencer is composed of a main pipe 51, two upper silencing chambers 52 and 54, a baffle plate 53, and discharge pipes 55 and 56. The inner part of each silencing chamber is provided with a tortuous air passage which can reduce the speed of the airflow and the intensity of the sound wave. The airflow noise which is output by the air pump for an aquarium without noise is low, and the transmission of the vibrating sound of the air pump device is little, which causes little noise pollution to the aquarium.

Description

Air pump for live fish in receptacle without noise

The utility model is a kind of fish jar air pump that reduces noise.

Now Chang Yong fish jar air pump is shown in Fig. 1～4, it has a base 1, flange perimeter of going out 11 and the inward flange 12 that is positioned at the flange of going out are arranged on the base, an inner cover 6 and an outer cover 7 are installed in respectively on inward flange 12 and the outward flange 11, and formation double-layer seal, pump device 4 and exhaust chamber fuse and are placed in the inner cover 6, pump device 4 is an eardrum formula structure, two eardrums 41 dispose relatively, two elastic levers 42 are housed in the outside of two eardrums, magnet 421 is equipped with in the end of each lever, magnet 421 is subjected to holding of electromagnet 43 and unclamps, 42 pairs of eardrums of lever 41 are produced compress and loosen effect, thereby form the pumping campaign of gas, enter fish jar by the outside dispatch of discharge duct through the air inlet inhaled air.

The shortcoming that above-mentioned fish jar air pump exists is:

1. when the fish jar air pump was operated, the noise that the vibration of pump device produces directly imported fish jar into through base plate.

2. a plurality of stempodas of fish jar air pump bottom, because of being the overall structure that the integral, flexible material is made, its vibration damping is poor, can not satisfy and reduce or the requirement of absorption noise.

3. the air of air pump device discharge discharges through two straight channel, and the transmission speed of sound wave can not reduce in straight channel, and acoustic pressure can not weaken yet, and can not be prevented so enter the noise of cylinder.

The purpose of this utility model is to design a kind of fish jar air pump that has silencing means, can reduce noise, to reduce noise pollution.

The purpose of this utility model is achieved in that coupled leading to is set on pump device, be installed on the muffler in the inner cover, this muffler has the secondary anechoic chamber, be provided with at least one in the anechoic chamber by the flexuose air channel that has corresponding wave-shaped side wall, so can reduce the velocity of sound effectively and reduce acoustic pressure; At the base plate place of base one shielded metal plate is set,, reduces the downward transmission of vibration, thereby prevent noise pollution with the vibration that the absorption pump device of air transmits.

Further structure of the present utility model is elaborated below by drawings and Examples.

Fig. 1 is the structure exploded view of fish jar air pump commonly used.

Fig. 2 is the structural representation of fish jar air pump commonly used.

Fig. 3 is the pump device structural representation of Fig. 2.

Fig. 4 is the profile of Fig. 3.

Fig. 5 is the structure exploded view of the utility model embodiment.

Fig. 6 is the structural representation of present embodiment.

Fig. 7 is the structural representation of pumping installations and muffler among Fig. 6.

Fig. 8 is the plane of two anechoic chambers among Fig. 7.

Fig. 9 is the development of the muffler of present embodiment.

Be labeled as among the figure:

1. base, 2. metallic plate, 3. stempoda, 4. pump device, 5. muffler, 6. inner cover, 7. outer cover, 10. base plate, 11. outward flanges, 12. inward flanges, 13. shaped as frame sealing plates, 14. handles, 15. air admission holes, 30.The stempoda bracket, 31. bracket top hollow cylinders, 32. cannelures, 33. the taper foot, 41. eardrums, 42. levers, 421. magnet, 43. electromagnet, 44. plugs, 51. trunk line, 52. first order anechoic chambers, 53. dividing plates, 54. anechoic chamber, the second level, 57. screws, 520,540. rib, 521,521a. air inlet, 522,522a. the first tortuous air flue, 541,541a. the second tortuous air flue, 523, the relative wave-shaped side wall of 523a, 542,542a. relative wave-shaped side wall, 543,543a. the gas outlet, 524. first anechoic chamber's housings, 544. second anechoic chamber's housings, 525.H the shape central baffle, 545.H shape central baffle.

By shown in Fig. 5～9 as seen, the fish jar air pump of present embodiment comprises base, 1, outer cover 7, inner cover 6, pump device 4, base plate 10 and many buffering stempodas 3 that are fastened on the above-mentioned base plate 10 are installed on the base 1, pump device 4 is loaded in the inner cover 6 on the inward flange 12 of base plate, inner cover 6 is located at again in the outer cover 7 of device on base plate outer peripheral flange 11, it is characterized in that on base plate 10, being provided with the metallic plate 2 of a shielding vibration sound wave, one muffler 5 that is connected with pump device 4 is set in the inner cover 6, this muffler is by first order anechoic chamber 52, dividing plate 53 between anechoic chamber, the second level 54 and this two anechoic chamber, and the trunk line 51 that is connected with pump device 4, with the blast pipe 55 that places in second anechoic chamber by two, 56 form, anechoic chamber 52, all has at least one tortuous air flue in 54, each tortuous air flue, form by the relative wave-shaped side wall that is arranged in anechoic chamber's housing, first anechoic chamber and second anechoic chamber are connected by the through hole 531,532 on the dividing plate 53.

Above-mentioned metal casing 2 can reduce the transmission from top to bottom of vibrating noise, and reduces noise pollution, and above-mentioned anechoic chamber can reduce air velocity that pump device produces and intensity of acoustic wave and reduce noise pollution.This shows that present embodiment can realize reducing the purpose of noise pollution.

Base 1 includes as seen from Figure 5: a base plate 10; An outward flange 11 that forms in base plate 10 outer periphery; An inward flange 12 that in neighboring 11, forms, it combines with a shaped as frame seal 13; Adjustable handle 14, one a grace joint pump tolerance that is positioned on the base bottom; And 2 air admission holes 15 on base plate 10, be used for sucking air by direction A shown in Figure 5, A1.

Metal shielding board 2 is by metallic plate one cast iron as seen from Figure 6, stainless steel, and copper coins etc. are made, and transmit downwards in order to the accurate seat 1 of squatting of shielding sound wave.

Each buffering stempoda 3 of being made by elastic material or elastomeric material includes: one is fixed tightly in base plate 10 times, and embeds the hollow cylinder 31 of stempoda bracket 30; Cannelure 32 on stempoda 3; With a taper foot 33, its oblique tip down stands on the plane.Cannelure 32 helps stempoda 3 to produce elasticity as buffer spring, to reduce the vibrating noise that is produced when the fish jar air pump is operated.The oblique tip degree in tapering of taper foot 33 almost makes it become cusp on the top, reducing its contact area and to offset the active force on the opposed pump of pump plane, thereby reduces the vibrating noise that is caused by pump.

Include by Fig. 8,9 visible first order anechoic chambers 52: a pair of air inlet 521,521a, it two is separated by first central baffle 525 that is H shape, and the bottom of first housing 524 by first order anechoic chamber is connected with main airway on the trunk line 51 respectively, enters first order anechoic chamber 52 to import air; The a pair of first tortuous air flue 522,522a, they are connected with two air inlets 521,521a respectively, and extend to the both sides complications in first order anechoic chamber 52.Each first tortuous air flue 522,522a are by wave-shaped side wall 523,523a form relatively; Two first tortuous air flues 522,522a are connected with through hole 531,532 on the dividing plate 53 that is clamped between the first order and the anechoic chamber, the

second level

52,54 respectively.

Anechoic chamber, the second level 54 includes: a pair of second tortuous air flue 541,541a, it two is separated by second central baffle that is H shape, and is positioned on second housing 544 of anechoic chamber, the second level 54.Their are through two through holes 531,532 on dividing plate 53, are connected with two first tortuous air flues 522,522a in first anechoic chamber respectively.Two second tortuous air flues 541,541a within anechoic chamber, the second level 54, extend to both sides are tortuous respectively; Each second tortuous air flue 541,541a are by wave-shaped side wall 542,542a form relatively; 2 outlets 543,543a are connected with 2 second tortuous air flues 541,541a respectively, and are connected with

blast pipe

55,56 on two second housings 544 that are fixed tightly in anechoic chamber, the second level 54.

No matter be first order anechoic chamber 52 or anechoic chamber, the second level 54, on its

housing

524 or 544, be equipped with

ribs

520 or 540, to strengthen H shape

central baffle

525 or 545; And on the plane, neighboring of each

housing

524 or 544, make

chimb

52a or 54a so that the dividing plate made from plastics or rubber 53 is airtight well in addition.

When pump device 4 of the present invention is operated, be A, A1 is to flow air, because the pumping of diaphragm pump 41, promote it and delivered to 2 imports 521 in 51 minutes through trunk line, 521a, again by way of 2 first tortuous air flues 522,522a, 2 through holes 531 on dividing plate 53,532,2 second tortuous air flues 541,541a, 2 air vents 543,543a, finally by 2

pipelines

55,56 discharge, air flow A, A1 expands to the anechoic chamber 50 that has enlarged to some extent to trunk line, and because of having reduced flow velocity and pressure, thereby reduced noise pollution very effectively through many tortuous air flues and wave-shaped side wall.A, A1 clearly illustrate in Fig. 8,9 to air-flow.

Claims

1, a kind of squelch type fish jar air pump comprises base, 1, outer cover 7, inner cover 6, pump device 4, base plate 10 and many buffering stempodas 3 that are fastened on the above-mentioned base plate 10 are installed on the base 1, pump device 4 is loaded in the inner cover 6 on the inward flange 12 of base plate, inner cover 6 is located at again in the outer cover 7 of device on base plate outer peripheral flange 11, it is characterized in that: the metallic plate 2 that on base plate 10, is provided with a shielding vibration sound wave, one muffler 5 that is connected with pump device 4 is set in the inner cover 6, this muffler is by first order anechoic chamber 52, dividing plate 53 between anechoic chamber, the second level 54 and this two anechoic chamber, and the trunk line 51 that is connected with pump device 4, with the blast pipe 55 that places in second anechoic chamber by two, 56 form, anechoic chamber 52, all has at least one tortuous air flue in 54, each tortuous air flue, formed by the relative wave-shaped side wall that is arranged in anechoic chamber's housing, first anechoic chamber and second anechoic chamber are by the through hole 531 on the dividing plate 53,532 are connected.

2, by the described fish jar air pump of claim 1, it is characterized in that described first order anechoic chamber 52 comprises a pair of air inlet 521,521a, it two is separated by first central baffle 525 that is H shape, and the bottom of first housing 524 by first order anechoic chamber is connected with main airway on the trunk line 51 respectively, enters first order anechoic chamber 52 to import air; The a pair of first tortuous air flue 522,522a, they are connected with two air inlets 521,521a respectively, and extend to the both sides complications in first order anechoic chamber 52.Each first tortuous air flue 522,522a are by wave-shaped side wall 523,523a form relatively; Two first tortuous air flues 522,522a are connected with through hole 531,532 on the dividing plate 53 that is clamped between the first order and the anechoic chamber, the second level 52,54 respectively.

3, by the described fish jar air pump of claim 1, it is characterized in that described first order anechoic chamber 54 comprises a pair of second tortuous air flue 541,541a, it two is separated by second central baffle that is H shape, and is positioned on second housing 544 of anechoic chamber, the second level 54.Their are through two through holes 531,532 on dividing plate 53, are connected with two first tortuous air flues 522,522a in first anechoic chamber respectively.Two second tortuous air flues 541,541a within anechoic chamber, the second level 54, extend to both sides are tortuous respectively; Each second tortuous air flue 541,541a are by wave-shaped side wall 542,542a form relatively; 2 outlets 543,543a are connected with 2 second tortuous air flues 541,541a respectively, and are connected with blast pipe 55,56 on two second housings 544 that are fixed tightly in anechoic chamber, the second level 54.

4, by claim 1 or 2 or 3 described fish jar air pumps, it is characterized in that on the housing of two anechoic chambers, all being provided with ribs, the neighboring of anechoic chamber's housing 520,540 be provided with can with airtight flange 52a, the 54a of the dividing plate 53 that sealing function is arranged.

5, by the described fish jar air pump of claim 1, the stempoda 3 that it is characterized in that being provided with on the base plate 10 of base 1 is by being fixed tightly in base plate 10 times, and the hollow cylinder 31 of embedding stempoda bracket 30 and 33 compositions of taper foot that combine with cylinder 31, stempoda 3 is provided with the cannelure 32 that can play cushioning effect.