JP3079860U - Air pump silencing structure - Google Patents

Abstract

(57) [Summary] [Problem] To provide an air pump silencing structure. SOLUTION: In a noise reduction structure of an air pump used in a fish tank or a water box, the noise reduction structure is provided on one side of a main body to which all components are attached, and the main body is provided outside of an air chamber seat. One air guide tube is formed so as to extend into the first air chamber inwardly from the air outlet hole, the end of the air guide tube just abuts the inner wall of the base, and at least one air guide tube is provided on the peripheral edge of the air guide tube end. Air outlets are provided, and the air sucked by using the air outlets is introduced laterally into the first air chamber, thereby reducing the impact noise generated by the air flowing directly into the air chamber. .

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to an air pump silencing structure, and more particularly, to an air pump silencing structure used in a fish tank or water box.

[0002]

[Prior art]

 FIG. 1 is an exploded perspective view of a known air pump. The air pump 10 is composed of a main body 11, a compression cover cup 12, a vibration crank 13, two non-return structures 14, and a base cover 15. The main body 11 is divided into an inlet chamber 111 and an outlet chamber 112 at the center, and a bleed hole 113 and an outlet hole 114 are provided in the center partition plate. Among them, the compression cover cup 12 covers the upper part of the intake chamber 111, the vibration crank 13 is fitted at the center position, and another end of the vibration crank 13 is combined with an external electromagnetic device, and one magnet 131 is formed. One fitting groove 115 is provided on the bleed hole 113 in the air inlet chamber 111, and a check structure 14 is fitted in each of the two fitting grooves 115, and the check structure 14 is one The non-return film 142 is pressed into the fitting groove 115 by the push block 141, whereby one side of the non-return film 142 covers the bleed hole 113 and the air outlet 114, and receives a gas to open a thin section thereof. Further, a through hole 116 is provided at the bottom of the air inlet chamber 111 and communicates with the outside of the main body 11. An air outlet pipe 117 is provided at one side of the air outlet chamber 112, and the bottom of the main body 11 Enclosed in .

With the above structure, when the power is turned on, the magnet 131 on one side of the vibrating crank 13 is attracted and rejected by an external electromagnetic device, and the other side is used as a fulcrum to generate vertical vibration. Then, the lower compression cover cup 12 performs a push-pull operation, and when it is pulled outward, external gas is sucked into the inlet chamber 111 through the through-hole 116, and further gas passes through the bleed hole 113, and the gas flows out of the outlet hole. It reaches 114. When the compression cover cup 12 is compressed, the gas is compressed through the vent hole 114 to reach the vent chamber 112 and is discharged from one of the vent pipes 117, and the vibrating crank 13 reciprocates in this manner. This achieves the effect of continuous air supply.

However, the above-described conventional air pump structure is widely used in the industry. However, such a type of air pump structure has a short gas flow path, and the air is supplied directly to the air extraction hole 113 more quickly. Then, the gas entered the air inlet chamber 111, and the gas was discharged from the air supply pipe very quickly, and the speed of the gas flow was high.

[0005] Therefore, there is a problem how to improve the structure of a known air pump to suppress, eliminate, or reduce gas noise during the operation of the air pump.

[0006]

[Problems to be solved by the invention]

 The main purpose of the present invention is to reduce the noise generated by air movement in pneumatic transportation by providing an air pump for a fish tank equipped with a silencing structure.

[0007]

[Means for Solving the Problems]

 The invention of claim 1 is composed of a main body 21, a base 22, a compression cover cup 24, a vibration crank 23, two non-return structures 25, 26, a gasket 212 and a cover plate 28, and a circular sheet is provided on the upper side of the main body 21. A gasket 212 and a cover plate 28 are provided on one side, and an air inlet 2111 is provided in the air inlet chamber 211 and the air outlet chamber 212, respectively. One delivery air hole 2121 is provided, a compression cover cup 24 covers the upper part of the circular sheet 210, and a vibration crank 23 is connected to a central portion of the compression cover cup 24, and another end of the vibration crank 23 is connected to the other end of the vibration crank 23. One magnet 231 is provided by combining an external electromagnetic device, and one fitting groove is provided in each of the inlet and outlet holes 2111 and 2121. One non-return structure 25, 26 is fitted in each of the two fitting grooves, and the non-return structures 25, 26 control the passage of air through the air inlet 2111 and the air outlet 2121 in a single direction, respectively. An inlet 213 is provided in the inlet chamber 211 of the main body 21, an outlet 214 is provided in the outlet chamber 212, and one muffling structure is provided in the air chamber seat 215 of the main body 21. One bleed hole 2150 is provided outside the air chamber seat 215 of the main body 21, and one air guide tube 2151 is formed in the first air chamber 2151 so as to extend inward from the bleed hole 2150, and an end of the air guide tube 2151 is formed. 2152 is in contact with the inner wall of the accommodation chamber 221 of the base 22, and at least one air outlet 2153 is opened on the periphery of the end 2152 of the air guide tube 2151, and the air is extracted using these air outlets 2153. Air is introduced into the first gas chamber from the side direction 2151, characterized by reducing the impact noise air formed by flows into the gas chamber directly by this, that the air pump muffling structure. According to the invention of claim 2, the partition piece is provided in the air chamber seat 215 of the main body 21 to provide a small number of accommodation chambers, and the base 22 is also provided with an accommodation chamber facing the air chamber seat 215. The air pump silencing structure according to claim 1, wherein an air chamber, a second air chamber, a third air chamber, and a fourth air chamber are formed. According to a third aspect of the present invention, a rib sheet having a cross section smaller than that of the air outlet chamber 212 is provided in a storage chamber corresponding to the base in the second air chamber and the base in the third air chamber, and the rib sheet has a notch. The air pump silence structure according to claim 1 characterized by the following. The invention according to claim 4 is characterized in that two sets of gas fluid paths are provided in the air chamber seat and the base of the main body, and two sets of vibration cranks, compression cover cups and other components are combined. The air pump silencing structure according to claim 2. In the invention of claim 5, both the inlet and the outlet of the inlet chamber are modified into a circular hole, and a relatively small-diameter convex column is opened upward at a position corresponding to the circular hole on the base, The air pump silence structure according to claim 4, characterized in that the convex column enters the circular hole, thereby slowing down the flow of gas and suppressing noise.

[0008]

[Embodiment of the invention]

 As shown in FIGS. 2 to 6, the present invention provides a kind of air pump silencing structure. The air pump 2 includes a body 21, a base 22, a compression cover cup 24, a vibration crank 23, two non-return structures 25 and 26, a gasket 27, and a cover plate 28 in combination. Among them, a circular sheet 210 is provided on the upper side of the main body 21 and is divided into an inlet chamber 211 and an outlet chamber 212, and a gasket 212 and a cover plate 28 are provided on one side. An inlet hole 2111 and one outlet hole 2121 are provided in the inlet chamber 211 and the outlet chamber 212, respectively, and the compression cover cup 24 covers the upper part of the circular sheet 210. The vibration crank 23 is connected. One magnet 231 is provided by combining another end of the vibration crank 23 with an external electromagnetic device. Also, one fitting groove (no reference numeral) is provided in each of the sending air hole 2111 and the sending air hole 2121, and one non-return structure 25, 26 is fitted in each of the two fitting grooves. The non-return structures 25 and 26 are formed by combining one cushion block 251 and 261 with one non-return film 255 and 262, respectively. Control the passage. An inlet 213 is provided in an inlet chamber 211 of the main body 21, and an outlet 214 is provided in an outlet chamber 212. Among them, one silencing structure is provided in the air chamber seat 215 of the main body 21. That is, one bleed hole 2150 is provided outside the air chamber seat 215 of the main body 21, and one air guide tube 2151 is formed in the first air chamber 2151 to extend inward from the bleed hole 2150, and the air guide tube 2151 is formed. The end 2152 of the air guide tube 2151 just contacts the inner wall of the accommodation chamber 221 of the base 22, and at least one air outlet 2153 is formed on the periphery of the end 2152 of the air guide tube 2151. The air injected using the air outlet 2153 is introduced into the first air chamber 2151 from the side, thereby reducing the impact noise caused by the air flowing directly into the air chamber. The accommodation chambers 2156, 2157, 2158, 2159 are formed using the partition pieces C1, C2, C3 inside the air chamber seat 215 of the main body 21, and each of the accommodation chambers 2156, 2157, 2158, 2159 is one in order. The first air chamber A1, the second air chamber A2, the third air chamber A3, and the fourth air chamber A4 are formed opposite to the housing chambers 221, 223, 225, and 226 of the two bases 22, and the first air chamber is formed. One passage opening 2154 is formed between A1 and the second air chamber A2, and an air inlet 213 is provided on one side of the accommodation chamber 2157 in the second air chamber A2 to communicate with the air inlet chamber 211, One vent hole 214 is provided on one side of the accommodation chamber 2158 in the second air chamber A2, and communicates with the vent chamber 212. A passage port 2155 is provided between the third air chamber A3 and the fourth air chamber A4, and a channel 216 is provided on one side of the accommodation chamber 2159 in the fourth air chamber A4, and communicates with the air outlet pipe 217. The base 22 is mutually closed with the air chamber seat 215, and the base 22 is partitioned by partition pieces B 1, B 2, and B 3 to form storage chambers 221, 223, 225, and 226, and the storage chambers in the second air chamber A 2 At one side of the chamber 223, at a position corresponding to the air inlet 213, a rib sheet 222 having a cross-sectional area slightly smaller than that of the air inlet 213 is provided, and the rib sheet 222 has one notch 2221 and is provided in the second air chamber A3. A rib sheet 224 having a slightly smaller cross-sectional area than the vent hole 214 is provided at a position corresponding to the vent hole 214 on one side of the storage chamber 225, and the rib sheet 224 has one notch 2241.

In the above structure, as shown in FIGS. 4 and 5, when the power is turned on, the magnet 231 on one side of the vibration crank 23 is subjected to the attraction and rejection action of the external electromagnetic device, and the other side is turned on. It vibrates up and down as a fulcrum, pushes and pulls the lower compression cover cup 24, and when pulled out, external gas is sucked into the air guide pipe 2151 of the air chamber seat 215 from the bleed hole 2150, Furthermore, the air is introduced into the first air chamber A1 from the air outlet 2153 on the periphery of the end 2152 of the air guide pipe 2151, whereby the impact noise caused by the direct flow of the air into the air chamber is reduced. The air reaches the second air chamber A2 through the passage opening 2154 from the first air chamber A1 and is blocked by the rib sheet 222 in the air holes 213, so that the air does not flow directly into the air holes 213 but always bypasses the air holes 213. Inlet 213 and rib The air enters the air inlet chamber 211 through the notch 2221 of the rib sheet 222, and the noise of air circulation is reduced again. After the air enters the inlet chamber 211, the air flows into the outlet chamber 212 through the inlet / outlet port 2111 and the outlet port 2121 by the operation of the non-return structures 25 and 26, and further enters the outlet port 214, where the air exits. The rib sheet 224 is blocked at the opening of the hole 214. At this time, when the air detours and flows through the gap between the rib sheet 224 and the vent hole 214 and flows into the third air chamber A3, the generation of air noise is further reduced. By passing through the passage opening 2155 to reach the fourth air chamber A4, further entering the channel 216 and discharging through the outlet pipe 217, the noise which is effectively generated by the air circulation is reduced by the detour design which reduces the noise in a multiplex manner. Decrease.

Further, FIGS. 7, 8 and 9 show another embodiment of the present invention. In this embodiment, the air pump is a twin-type air pump 4, of which two sets of gas circulation paths are provided on both sides of a main body 41 with an air chamber seat 42 and a base 43, respectively, and two sets of vibrating cranks 44, 44. , Compression cover cups 45, 45 ', etc. are provided, and two sets of mutually corresponding air pumps 4 are formed, and the gas flowing in and out of each set is also the same as in the above-described embodiment. That is, the bleed holes 415, 415 ', the air guide tubes 416, 416', the first air chambers E1, E1 ', the second air chambers E2, E2', the third air chambers E3, E3 ', the fourth air chamber E4, respectively. E4 'and outlet pipes 417 and 417' are provided, and the operation and the above-described embodiment are the same. However, among them, the air inlets 413, 413 'of the air inlet chambers 411, 411' and the air outlets 414, 414 'of the air outlet chambers 412, 412' are all modified into circular holes, and the base 22 is a second and a third. At the positions of the air chambers E2, E2 ', E3, E3', there are provided relatively small diameter convex columns 4221, 4221 ', 4231, 4231' corresponding to the circular holes, and the convex columns 4221, 4221 ', 4231, 4231. 'Can enter the circular hole (the function of these convex columns is the same as that of the rib sheet in the above-described embodiment, and prevents the direct inflow of air, and the convex columns 4221, 4221', 4231, 4231). Similarly, the cross-sectional area of ′ is small similarly to the air inlets 413 and 413 ′ and the air outlets 414 and 414 ′, and a gap is appropriately reserved so that the air enters the bypass. The gaps between the convex columns 4221 and 4221 'and 4231 and 4231' and the inlet holes 413 and 413 'and the outlet holes 414 and 414' reduce the flow velocity of the gas and suppress noise when the gas passes.

[0011]

[Effect of the invention]

 The present invention provides an effect of reducing the impact noise generated when air directly flows into an air chamber in an air pump, and has practicality, novelty, inventive step, and industrial value.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a known air pump.

FIG. 2 is an exploded perspective view of the present invention.

FIG. 3 is a view showing the interior of the air chamber according to the present invention.

FIG. 4 is a view showing a gas flow direction according to the present invention;

FIG. 5 is a view showing a gas flow according to the present invention.

FIG. 6 is a three-dimensional combination diagram of the present invention.

FIG. 7 is a schematic view showing a twin structure according to another embodiment of the present invention;

FIG. 8 is a view showing a gas flow direction of a twin structure according to another embodiment of the present invention.

FIG. 9 is a view showing a gas flow direction of a twin structure according to another embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Air pump 11 Main body 111 Inlet chamber 112 Outlet chamber 113 Bleed hole 114 Outlet hole 115 Fitting groove 116 Through hole 117 Outlet pipe 12 Compression cover cup 13 Vibration crank 131 Magnet 14 Non-return structure 141 Push block 142 Non-return film 15 Base 2 , 4 Air pump 21 Main body 210 Circular sheet 211, 411, 411 ′ Inlet chamber 2111 Inlet port 212, 412, 412 ′ Outlet chamber 2121 Outlet port 213, 413, 413 ′ Inlet port 214, 414, 414 ′ Outlet port 215 , 42 Air chamber seats 2150, 415, 415 'Extraction holes 2151, 416, 416' Air guide tube 2152 End 2153 Outlet port 2154, 2155 Passage port 2156, 2157, 2158, 2159 Storage chamber 216 Channel 217, 417, 417 ' Mind Pipes 22, 43 Bases 221, 223, 225, 226 Storage rooms 222, 224 Rib sheets 2221, 2241 Notch B1, B2, B3, C1, C2, C3 Partition pieces 24, 45, 45 'Compression cover cups 23, 44, 44 'Vibration crank 231 Magnet 25, 26 Reverse check structure 251, 261 Cushion block 252, 262 Reverse check film 27 Gasket 28 Cover plate A1, E1, E1' First air chamber A2, E2, E2 'Second air chamber A3, E3 , E3 'Third air chamber A4, E4, E4' Fourth air chamber

Claims (5)

[Utility model registration claims] 1. A body 21, a base 22, a compression cover cup 24, a vibration crank 23, two non-return structures 25, 2.
6, a gasket 212 and a cover plate 28, and a circular sheet 210 is provided on the upper side of the main body 21 and divided into an inlet chamber 211 and an outlet chamber 212, and a gasket 212 and a cover plate 28 are provided on one side. Established air intake chamber 211
And a vent hole 212 are provided in the air outlet chamber 212, respectively, and a compression cover cup 24 covers the upper part of the circular sheet 210, and a vibration crank 23 is provided at a central position of the compression cover cup 24. Are concatenated,
The other end of the vibrating crank 23 is combined with an external electromagnetic device to provide one magnet 231,
111 and the delivery air hole 2121 are each provided with one fitting groove.
5 and 26 are fitted, and the non-return structures 25 and 26 control the passage of air in a single direction through the air inlet 2111 and the air outlet 2121, respectively. Is provided, an air outlet 214 is provided in the air outlet 212, and one muffling structure is provided in the air chamber seat 215 of the main body 21, that is, one extractor is provided outside the air chamber seat 215 of the main body 21. An air hole 2150 is provided, and one air guide tube 2151 is formed in the first air chamber 2151 so as to extend inward from the bleed hole 2150. And, at least one outlet 2153 is opened at the periphery of the end 2152 of the air guide tube 2151, and air extracted using these outlets 2153 is introduced into the first air chamber 2151 from the side, to this Ri wherein the air is reduced impact noise formed flows into the air chamber directly, the air pump muffling structure. 2. A compartment is provided in the air chamber seat 215 of the main body 21 to provide a small number of accommodation chambers. The base 22 also has an accommodation chamber facing the air chamber seat 215, and a first air chamber is provided. ,
The air pump silencing structure according to claim 1, wherein a second air chamber, a third air chamber, and a fourth air chamber are formed. 3. A rib seat having a cross section smaller than that of the vent chamber 212 is provided in a housing chamber corresponding to a base in the second air chamber and a base in the third air chamber, and the rib sheet has a notch. The air pump silencing structure according to claim 1, wherein: 4. The apparatus according to claim 1, wherein two sets of gas fluid paths are provided in the air chamber seat and the base of the main body, and two sets of vibration cranks, compression cover cups and other components are combined. Item 3. An air pump silencing structure according to Item 2. 5. The air inlet and the air outlet of the air inlet chamber are both changed to circular holes, and a relatively small-diameter convex column is opened upward at a position corresponding to the circular hole of the base, and the convex column is formed. 5. The air pump silencing structure according to claim 4, wherein the air pump enters the circular hole to reduce the speed of gas flow and to suppress noise.