Patent Application
20130189135
1. Field of the Invention
The present invention relates to an air pump structure, and more particularly to a simplex air pump structure instead of a conventional complicated air pump.
2. Description of the Prior Art
An air pump is widely used to generate air flow, such as an air pump device for an air blower, a fish jar or the like.
As shown in
1.This structure comprises two side bodies 11, a seal membrane member 12 located between the two side bodies 11. When these three parts are assembled, the assembled position may be incorrect. After using for a long time, the structure may loosen because of vibration to case air leakage. This results in less air volume. Sometimes, the pump malfunctions.
2.This structure has many parts including the two side bodies 11, the seal membrane member 12, the exhaust pipe 115, and so on. The mold expense is high, and the storage cost is also increased. The cost cannot be lowered, and it takes a lot of time and work to assemble the parts.
3.This structure needs a fastening band to fix the pump lid 13. It is troublesome to assemble the parts. If the fastening bank is cut off, the pump lid 13 will lose its function.
4. The diameter of the air intake pipe of this structure is small, which is unable to filter impurities in the air. The dust in the air will cause that the membrane piece cannot be closed exactly and may malfunction over a long period of time.
Accordingly, the inventor of the present invention has devoted himself based on his many years of practical experiences to solve these problems.
The primary object of the present invention is to provide an improved air pump structure which has a simple configuration and few parts to lower the mold cost and to prevent air leakage and has a long service life.
In order to achieve the aforesaid object, the air pump structure of the present invention comprises a main body. The main body has a central air chamber. The central air chamber provides an air intake function. The main body has two side air chambers at two sides thereof. The two side air chambers and the central air chamber are separated. Each side air chamber has an air inlet unit. Through the air inlet unit, the two side air chambers communicate with the central air chamber. The air inlet unit is covered with a one-way membrane member. The two side air chambers each have a passage at a lower end thereof to communicate with an air outlet. A one-way valve plate is coupled to the air outlet. Two air pump members are to seal the two side air chambers. The air pump members cooperate with a link member and an electromagnetic member to pump air.
Preferably, the two side air chambers each have a circle shape, and the central air chamber is located between the two side air chambers.
Preferably, the central air chamber has an open top, and a cotton filter is provided in the central air chamber.
Preferably, the air outlet is disposed at the bottom of the passage.
Preferably, the air inlet unit has a post extending outward from a central portion thereof The post is for connection of a positioning block of the one-way membrane member. The one-way membrane member exactly covers the outer edge of the air inlet unit. The one-way membrane member cooperates with the air inlet unit for air to flow from the central air chamber to the side air chambers. The air is unable to flow back from the side air chambers to the central air chamber.
Preferably, through the one-way valve plate, the air is expelled from the passage to the air outlet and unable to flow back from the air outlet to the passage.
Preferably, the air pump member is made of a soft material. The center of the air pump member is connected with a link member. The link member is connected with an electromagnetic member.
Preferably, the air pump member is coupled to an open portion of a seat of the main body to connect with the side air chambers.
The advantages of the present invention are as follow:
1. The present invention uses the single main body instead of the conventional structure having the two side bodies and the seal membrane member between the two side bodies. The parts of the present invention are decreased. The number and cost of the molds are lowered, and it is convenient to assemble the parts.
2. The present invention uses the single main body instead of the conventional structure having the two side bodies and the seal membrane member between the two side bodies, without using the seal membrane member for seal. The quality of the present invention is enhanced, not having the consideration of air leakage. The service life can be prolonged.
3. The air passes the passage and the air outlet, and then outputs. Compared to the conventional structure which needs the exhaust pipe, the present invention is more ideal.
4. The present invention uses the single main body instead of the conventional structure having the two side bodies and the seal membrane member between the two side bodies. The present invention has an integral configuration instead of the separate configuration of the prior art. The central air chamber, the passage and the air outlet of the present invention are also improved and novel.
5. The conventional structure needs the fastening band to fix the pump lid, which is troublesome. If the fastening band is cut off, the pump lid will lose its function. On the contrary, the air pump member of the present invention is fixed through the seat. It is convenient to assemble the present invention. The seal is exact and the structure is durable after a long period of time.
6. The central air chamber of the present invention is wide and provided with a cotton filter to filter the dust in the pair, so the membrane member won't be influenced by the dust to have an exact operation.
Embodiments of the present invention will now be described, by way of example only, with reference to the accompanying drawings.
As shown in
The air inlet unit 24 has a post 25 extending outward from a central portion thereof The post 25 is adapted for connecting a positioning block 261 of a one-way membrane member 26. The one-way membrane member 26 exactly covers an outer edge of the air inlet unit 24. The one-way membrane member 26 cooperates with the air inlet unit 24 for one-way air flow from the central air chamber 22 to the side air chambers 21. The air cannot flow back from the side air chambers 21 to the central air chamber 22.
The air outlet 23 is covered with a one-way valve plate 231 which has the same function like the one-way membrane member 26. Through the one-way valve plate 231, the air is expelled from the passage 27 to the air outlet 23 and cannot flow back from the air outlet 23 to the passage 27.
Each side air chamber 21 is sealed and connected with an air pump member 3. The air pump member 3 is made of a soft material. The center of the air pump member 3 is connected with a link member 31. The link member 31 is connected with an electromagnetic member 32. The air pump member 3 is coupled to an open portion 41 of a seat 4 so as to connect with the relative side air chamber 21. The link member 31 is controlled by the electromagnetic member 32 to reciprocate, such that the air pump member 3 is deformed inward and outward along with reciprocation of the electromagnetic member 32.
The cotton filter 221 in the central air chamber 22 not only prevents airflow noise but also filters powders and blocks dirt to keep the interior cleanness and normal running.
When the present invention is used, the electromagnetic member 32 is electrified to bring reciprocation of the link member 31 along with deformation of the air pump member 3. When the air pump member 3 is deformed from inside to outside, the side air chambers 21 will generate a suction force. Through the suction force, the air in the central air chamber 22 passes the air inlet unit 24 and enters the side air chambers 21. At this time, the one-way membrane member 26 is opened toward outside. The one-way valve plate 231 seals the air outlet 23 due to the inner suction force. When the air pump member 3 is deformed from outside to inside, the side air chambers 21 will generate a compressed force. The air in the side air chambers 22 is compressed and the one-way membrane member 26 is closed. The air moves toward the passage 27 and passes the air outlet 23. The one-way valve plate 231 is moved toward the route of the air.
Compared to the prior art, the features of the present invention are as follow.
1. The present invention uses the single main body 2 instead of the conventional structure having the two side bodies 11 and the seal membrane member 12 between the two side bodies 11. The parts of the present invention are decreased. The number and cost of the molds are lowered, and it is convenient to assemble the parts.
2. The present invention uses the single main body 2 instead of the conventional structure having the two side bodies 11 and the seal membrane member 12 between the two side bodies 11, without using the seal membrane member 12 for seal. The quality of the present invention is enhanced, not having the consideration of air leakage. The service life can be prolonged.
3. The air passes the passage 27 and the air outlet 23, and then outputs. Compared to the conventional structure which needs the exhaust pipe 115, the present invention is more ideal.
4. The present invention uses the single main body 2 instead of the conventional structure having the two side bodies 11 and the seal membrane member 12 between the two side bodies 11. The present invention has an integral configuration instead of the separate configuration of the prior art. The central air chamber 22, the passage 27 and the air outlet 23 of the present invention are also improved and novel.
5. The conventional structure needs the fastening band to fix the pump lid 13, which is troublesome. If the fastening band is cut off, the pump lid 13 will lose its function. On the contrary, the air pump member 3 of the present invention is fixed through the seat 4. It is convenient to assemble the present invention. The seal is exact and the structure is durable after a long period of time.
6. The central air chamber of the present invention is wide and provided with a cotton filter to filter the dust in the pair, so the membrane member won't be influenced by the dust to have an exact operation.
The present invention further comprises a muffler sleeve 5 at the bottom thereof The muffler sleeve 5 is made of a soft material, such as rubber or silicon gel. The muffler sleeve 5 has a through hole 51 for flow of air. The muffler sleeve 5 can eliminate noise.
Although particular embodiments of the present invention have been described in detail for purposes of illustration, various modifications and enhancements may be made without departing from the spirit and scope of the present invention. Accordingly, the present invention is not to be limited except as by the appended claims.
