Integrated noise reduction air compression pump

Abstract

The present invention discloses an integrated noise-reducing air compression pump. It includes a noise-reducing structure and a power device cooperating with the noise-reducing structure. The noise-reducing structure includes an air chamber housing having an air outlet buffer chamber and an air inlet buffer chamber, and a pneumatic device installed between the power device and the noise-reducing structure. An air outlet communicating with the air outlet buffer chamber and an air inlet communicating with the air inlet buffer chamber are provided on the air chamber housing, and an air inlet filtering device is provided at the air inlet. Its advantages are: its structure is designed compactly, occupies a small space, is very simple and convenient to assemble, has a very low manufacturing cost, and greatly improves the working reliability. There is no need to connect to the air inlet and outlet of the housing through air inlet and outlet silica gel pipes, thereby achieving the purpose of further improving the assembly production efficiency. Noise reduction is carried out at the source of air intake, greatly reducing the pulsation of the air flow and consuming the energy of sound waves, thereby achieving the purpose of reducing noise.

Description

Technical Field

[0001] The present invention relates to an accessory structure of a compression atomizer, specifically an integrated noise reduction air compression pump for an atomizer, belonging to the technical field of medical devices. Background Art

[0002] Atomization inhalation therapy is an important and effective treatment method in the treatment of respiratory diseases; during the use of a compression atomizer, excessive noise will affect the patient's treatment mood and thus affect the treatment effect.

[0003] The existing noise reduction methods for compression atomizers usually reduce noise by damping the compression pump or using sound-absorbing filter cotton. The better method is to reduce noise by externally connecting a sound-absorbing box to the compression pump, but this method not only increases the cost but also has a more complex assembly. Although it has a certain noise reduction effect, it is not particularly obvious. In addition, the existing atomizers have a complex structural design and poor use reliability. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide an integrated noise reduction air compression pump with a simple structure, convenient assembly, good use reliability, and capable of increasing the buffer of the intake air flow, thereby improving production efficiency and effectively reducing noise.

[0005] To solve the above technical problem, the integrated noise reduction air compression pump of the present invention includes a noise reduction structure and a power device cooperating with the noise reduction structure. The noise reduction structure includes an air chamber housing having an air outlet buffer chamber and an air inlet buffer chamber, and a pressure device installed between the power device and the noise reduction structure. An air outlet communicating with the air outlet buffer chamber and an air inlet communicating with the air inlet buffer chamber are provided on the air chamber housing. An air inlet filtering device is provided at the air inlet. The power device can drive the pressure device to act, so that the air flow filtered by the air inlet filtering device is subjected to the first external noise reduction and then undergoes secondary air flow buffer noise reduction through the air inlet buffer chamber, and then the air flow undergoes the third air flow buffer noise reduction through the air outlet buffer chamber and is discharged from the air outlet.

[0006] The pressure device is a piston cylinder.

[0007] The piston cylinder includes a pump body bracket fixedly installed between the power device and the air chamber housing, a cylinder sleeve installed in the pump body bracket, a pressing plate, a leather cup, and a connecting rod sequentially installed at one end of the cylinder sleeve, and a valve plate installed at the other end of the cylinder sleeve.

[0008] The air outlet buffer chamber is an air outlet chamber facing the air outlet. The air inlet buffer chamber includes a main air inlet chamber facing the air inlet and a secondary air inlet chamber surrounding the air outlet chamber. The main air inlet chamber is connected to the secondary air inlet chamber through an air flow channel.

[0009] The valve plate seals outside the secondary air inlet chamber and separates the secondary air inlet chamber from the air outlet chamber. An air inlet piece and an air outlet piece are arranged on the valve plate. An air flow chamber matching with the air inlet piece of the valve plate is arranged in the secondary air inlet chamber. Air flow through holes are formed in the side wall of the air flow chamber. The air outlet piece is directly matched with the air outlet chamber.

[0010] The power device includes a stator, a coil installed on the stator, and a rotor installed in the stator. The pump body bracket is directly installed on the stator. A wind blade is installed at the top end of the rotor. The bottom output end of the rotor is connected with a connecting rod through an eccentric wheel.

[0011] The rotor is respectively installed in the stator through upper and lower rotor brackets.

[0012] An air cavity cover is installed on the air cavity housing. An air outlet limit step is arranged at the air outlet. An air inlet limit step is arranged at the air inlet. The air inlet filtering device is arranged in the air inlet limit step.

[0013] The air inlet filtering device is an air inlet filtering sponge arranged in the air inlet limit step and encapsulated by an air inlet filtering cover.

[0014] The air outlet limit step, the air inlet limit step and the air cavity housing are integrally injection molded.

[0015] The advantages of the present invention are as follows:

[0016] (1) Its structure is designed compactly, occupying a small space and being very simple and convenient to assemble. The manufacturing cost is very low, and the connection structure between the compact components greatly improves the working reliability.

[0017] (2) By arranging an air outlet limit step at the air outlet and an air inlet limit step at the air inlet, the upper parts of the air inlet limit step and the air outlet limit step can be directly exposed on the atomizer housing, and there is no need to connect with the air inlet and outlet of the housing through air inlet and outlet silica gel pipelines, thereby achieving the purpose of further improving the assembly production efficiency.

[0018] (3) An air inlet buffer chamber is arranged on the air inlet passage and noise reduction is carried out at the source of the air inlet, greatly reducing the pulse of the air flow and consuming the energy of the sound wave, thereby achieving the purpose of reducing noise.

[0019] (4) The air inlet buffer chamber is arranged as a main air inlet chamber facing the air inlet and a secondary air inlet chamber surrounding the outside of the air outlet chamber and communicated through an air flow passage, thereby making the air inlet sufficient and eliminating the air inlet noise, and further improving the noise reduction effect.

[0020] (5) The valve plate covers outside the secondary air inlet chamber and separates the secondary air inlet chamber from the air outlet chamber. At the same time, an air flow chamber that cooperates with the air inlet piece of the valve plate is arranged in the secondary air inlet chamber, and air flow through holes are provided on the side wall of the air flow chamber. Not only the air inlet piece and the air outlet piece of the valve plate are used to eliminate the noise in the channel, but also the air is introduced again through the air flow through holes of the independent air flow chamber for internal noise reduction. Description of the Drawings

[0021] Figure 1 It is a three-dimensional structural schematic diagram of the integrated noise reduction air compressor pump of the present invention;

[0022] Figure 2 It is an exploded structural schematic diagram of the integrated noise reduction air compressor pump of the present invention;

[0023] Figure 3 It is an exploded structural schematic diagram of the noise reduction structure of the present invention with the air pressure device part removed;

[0024] Figure 4 It is a front view structural schematic diagram of the noise reduction structure of the present invention with the air pressure device part removed;

[0025] Figure 5 It is Figure 4 the A-A cross-sectional structural schematic diagram of;

[0026] Figure 6 It is a three-dimensional structural schematic diagram of the air cavity housing of the present invention.

[0027] In the figure: 1 - stator; 2 - coil; 3 - rotor; 4 - noise reduction structure; 5 - pump body bracket; 6 - fan blade; 7 - air outlet buffer chamber; 8 - air inlet buffer chamber; 9 - air cavity housing; 10 - air cavity cover; 11 - air outlet limit step; 12 - air inlet limit step; 13 - air inlet filter cover; 14 - air inlet filter sponge; 15 - rotor bracket; 16 - pressing plate; 17 - leather cup; 18 - connecting rod; 19 - eccentric wheel; 20 - cylinder liner; 21 - valve plate; 22 - air outlet chamber; 23 - main air inlet chamber; 24 - secondary air inlet chamber; 25 - air inlet groove; 26 - air outlet groove; 27 - air flow chamber; 28 - air flow through hole; 29 - air flow channel. Detailed Embodiment

[0028] The integrated noise reduction air compressor pump of the present invention will be further described in detail below in conjunction with the drawings and the description.

[0029] As shown in the figure, the integrated noise-reducing air compression pump of the present invention is used in a compression atomizer and includes a noise-reducing structure 4 and a power device cooperating with the noise-reducing structure 4. The noise-reducing structure 4 includes an air chamber housing 9 having an air outlet buffer chamber 7 and an air inlet buffer chamber 8, and a pressure device installed between the power device and the noise-reducing structure 4. The pressure device is selected as a piston cylinder. As can be seen from the figure, in this embodiment, the piston cylinder includes a pump body bracket 5 fixedly installed between the power device and the air chamber housing 9, a cylinder liner 20 installed in the pump body bracket, a pressure plate 16, a leather cup 17, and a connecting rod 18 sequentially installed at one end of the cylinder liner 20, and a flexible valve plate 21 installed at the other end of the cylinder liner 20. The air chamber housing 9 is provided with an air outlet communicating with the air outlet buffer chamber and an air inlet communicating with the air inlet buffer chamber. An air chamber cover 10 is installed on the air chamber housing 9. An air outlet limit step 11 is provided at the air outlet, and an air inlet limit step 12 is provided at the air inlet. An air inlet filtering device is arranged in the air inlet limit step. The air inlet filtering device has an air inlet filtering channel, so that the air inlet filtering channel is communicated with the air inlet and the air inlet buffer chamber. The air outlet limit step 11 and the air inlet limit step 12 are limited by the assembly with the atomizer housing to form an integrated installation structure, and no additional silicone pipeline needs to be connected inside the atomizer; the power device includes a stator 1, a coil 2 installed on the stator, and a rotor 3 installed in the stator. During installation, the pump body bracket 5 is directly installed on the stator. The rotor 3 is installed in the stator through a rotor bracket located above the stator 1 and a rotor bracket located at the bottom of the stator respectively. A wind blade 6 is installed at the top end of the rotor 3. The bottom output end of the rotor 3 is connected to the connecting rod 18 through an eccentric wheel 19; in addition, the valve plate 21 is made of silicone material. An air inlet piece 25 and an air outlet piece 26 are cut on the valve plate. Since the valve plate 21 is made of silicone material, the air inlet piece 25 and the air outlet piece 26 can act under the action of air flow to allow the air flow to pass through. Thus, the air inlet buffer chamber communicates with the piston cylinder composed of the eccentric wheel 19, the connecting rod 18, the leather cup 17, the pressure plate 16, the pump body bracket 5, and the cylinder liner 20 through the air inlet piece of the valve plate 21. At the same time, the piston cylinder also communicates with the air outlet piece of the valve plate 21 and is connected to the air outlet buffer chamber 7 through the air outlet to form a whole. Of course, its power output comes from the motor main body composed of the wind blade 6, the rotor bracket 15, the rotor 3, the stator 1, and the coil 2.

[0030] Further, the air inlet filtering device is an air inlet filtering sponge 14 arranged in the air inlet limit step and encapsulated by an air inlet filtering cover 13. In addition, the air outlet limit step and the air inlet limit step are integrally injection-molded with the air chamber housing.

[0031] Furthermore, the outlet buffer chamber 7 is an outlet chamber 22 facing the outlet, and the inlet buffer chamber 8 includes a main inlet chamber 23 facing the inlet and an auxiliary inlet chamber 24 surrounding the outlet. The volume of the main inlet chamber 23 is larger than that of the auxiliary inlet chamber 24. The main inlet chamber 23 is connected to the auxiliary inlet chamber 24 through an air flow channel 29. The valve plate 21 is sealed on the outer end surface of the auxiliary inlet chamber and separates the auxiliary inlet chamber 24 from the outlet chamber 22. The auxiliary inlet chamber 24 is provided with a valve for The airflow chamber 27 cooperates with the air inlet plate of the valve plate. As can be seen from the figure, the airflow chamber 27 is a cylindrical structure. An air hole is arranged at the top of the airflow chamber 27, and an air flow hole 28 is opened on the side wall of the airflow chamber 27. The air inlet plate of the valve plate covers the air hole. Through this structural design, the airflow passes through the auxiliary air inlet chamber 24 and then enters the piston cylinder through the airflow chamber 27. The air outlet chamber 22 directly cooperates with the air outlet plate of the valve plate, thereby allowing the airflow to pass through the air outlet plate and enter the air outlet chamber 22.

[0032] When in use, when the air flow passes through the air intake filter cover and the air intake filter sponge for the first external noise reduction, and then enters from the air inlet, and passes through the air intake buffer chamber, it undergoes the second internal airflow buffering noise reduction. When passing through the flexible valve plate, the air intake plate of the valve plate bends downward and opens, and enters the piston cylinder. Then, when the power given by the motor body passes through the valve plate, the air outlet plate of the valve plate bends upward and opens, enters the air outlet channel, passes through the air outlet buffer chamber for the third airflow buffering noise reduction, and is discharged through the air outlet to achieve the purpose of noise reduction.

[0033] Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by technicians in this technical field within the essential scope of the present invention should also fall within the protection scope of the present invention.

Claims

1. An integrated noise-reducing air compression pump, characterized in that: It includes a noise reduction structure (4) and a power device cooperating with the noise reduction structure (4). The noise reduction structure (4) includes a gas chamber housing (9) having an air outlet buffer chamber (7) and an air inlet buffer chamber (8), and a pneumatic device installed between the power device and the noise reduction structure (4). An air outlet communicating with the air outlet buffer chamber and an air inlet communicating with the air inlet buffer chamber are provided on the gas chamber housing (9), and an air inlet filtering device is provided at the air inlet. The pneumatic device is a piston cylinder. The piston cylinder includes a pump body bracket (5) fixedly installed between the power device and the gas chamber housing (9), a cylinder liner (20) installed in the pump body bracket, a pressing plate (16), a leather cup (17) and a connecting rod (18) sequentially installed at one end of the cylinder liner (20), and a valve plate (21) installed at the other end of the cylinder liner (20). The air outlet buffer chamber (7) is an air outlet chamber (22) facing the air outlet. The air inlet buffer chamber (8) includes a main air inlet chamber (23) facing the air inlet and a secondary air inlet chamber (24) surrounding the air outlet chamber. The main air inlet chamber (23) is connected to the secondary air inlet chamber (24) through an air flow passage (29). The valve plate (21) covers the outside of the secondary air inlet chamber and separates the secondary air inlet chamber (24) from the air outlet chamber (22). An air inlet piece (25) and an air outlet piece (26) are provided on the valve plate (21). An air flow chamber (27) cooperating with the air inlet piece of the valve plate is provided in the secondary air inlet chamber (24). Air flow through holes (28) are provided on the side wall of the air flow chamber (27), and the air outlet piece directly cooperates with the air outlet chamber (22).

2. The integrated noise reduction air compression pump according to claim 1, characterized in that: The power device includes a stator (1), a coil (2) installed on the stator, and a rotor (3) installed in the stator. The pump body bracket (5) is directly installed on the stator. A wind blade (6) is installed at the top end of the rotor (3). The bottom output end of the rotor (3) is connected to the connecting rod (18) through an eccentric wheel (19).

3. The integrated noise reduction air compression pump according to claim 2, characterized in that: The rotor (3) is installed in the stator through upper and lower rotor brackets (15) respectively.

4. The integrated noise-reducing air compression pump according to claim 3, wherein: An air chamber cover (10) is installed on the gas chamber housing (9). An air outlet limit step (11) is provided at the air outlet, and an air inlet limit step (12) is provided at the air inlet. The air inlet filtering device is arranged in the air inlet limit step.

5. The integrated noise reduction air compression pump according to claim 4, characterized in that: The air inlet filtering device is an air inlet filtering sponge (14) encapsulated by an air inlet filtering cover (13) arranged in the air inlet limit step.

6. The integrated noise reduction air compression pump according to claim 5, characterized in that: The air outlet limit step, the air inlet limit step and the gas chamber housing are integrally injection-molded.

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