Vibration and noise reduction pneumatic diaphragm pump

Abstract

The utility model discloses a vibration and noise reduction pneumatic diaphragm pump, and belongs to the technical field of diaphragm pumps. The vibration and noise reduction pneumatic diaphragm pump comprises a pneumatic diaphragm pump body, a noise reduction mechanism and a vibration reduction mechanism. The damping mechanism is arranged below the pneumatic diaphragm pump body; the pneumatic diaphragm pump body comprises a motor body and diaphragm chambers, the diaphragm chambers are arranged on the two sides of the motor body, a liquid inlet pipe is arranged at one end of each diaphragm chamber, and a liquid outlet pipe is arranged at the other end of each diaphragm chamber; the motor body is provided with an air inlet and an air outlet, and the noise reduction mechanism is connected with the air outlet. By arranging the noise reduction mechanism, noise reduction treatment is conducted on the pneumatic diaphragm pump, so that noise pollution generated in the using process is reduced; by arranging the damping mechanism, on one hand, vibration generated in the using process can be reduced, stability of the whole structure is facilitated, and on the other hand, noise can be reduced to a certain extent.

Description

Technical Field

[0001] This application relates to a vibration-damping and noise-reducing pneumatic diaphragm pump, belonging to the field of diaphragm pump technology. Background Technology

[0002] A pneumatic diaphragm pump is a positive displacement pump that uses compressed air as its power source and achieves volume change through the reciprocating deformation of a diaphragm. It possesses the functions of traditional submersible pumps, mud pumps, centrifugal pumps, canned motor pumps, and magnetic pumps, while offering a wide flow path and excellent throughput. Furthermore, it does not rely on a motor drive, allowing it to be used in flammable and explosive environments. It is easy to install without a foundation, requires no maintenance (lubricating oil or engine oil), and is compact and easily portable, making it widely used in chemical and pharmaceutical industries.

[0003] However, existing pneumatic diaphragm pumps generate significant noise during operation, particularly from the vibration of surrounding air caused by compressed air passing through the exhaust port. Prolonged exposure to this noise can affect the hearing of workers, potentially leading to deafness. Existing silencers, however, are ineffective at reducing noise. Furthermore, the vibrations generated by existing pneumatic diaphragm pumps not only increase noise but also affect the overall structural stability and shorten the pump's lifespan.

[0004] Therefore, it is essential to provide a shock-absorbing and noise-reducing pneumatic diaphragm pump. Utility Model Content

[0005] To address the aforementioned issues, this application proposes a vibration-damping and noise-reducing pneumatic diaphragm pump. By incorporating a noise-reducing mechanism, the pneumatic diaphragm pump is subjected to noise reduction treatment to lower the noise pollution generated during use. Furthermore, by incorporating the vibration-damping mechanism, on the one hand, the vibration generated during use can be reduced, which is beneficial to the stability of the overall structure; on the other hand, it also helps to reduce noise generation to a certain extent.

[0006] According to one aspect of this application, a vibration-damping and noise-reducing pneumatic diaphragm pump is provided, comprising a pneumatic diaphragm pump body, a noise reduction mechanism, and a vibration-damping mechanism; the vibration-damping mechanism is disposed below the pneumatic diaphragm pump body; the pneumatic diaphragm pump body includes a motor body and a diaphragm chamber, the diaphragm chamber is disposed on both sides of the motor body, one end of the diaphragm chamber is provided with an inlet pipe, and the other end is provided with an outlet pipe; the motor body is provided with an air inlet and an air outlet, and the noise reduction mechanism is connected to the air outlet.

[0007] Optionally, the noise reduction mechanism includes a muffler assembly; the muffler assembly includes a muffler cylinder, a sleeve, and a muffler cover, the muffler cylinder having an open top and a sealed bottom, the muffler cover being detachably connected to the top of the muffler cylinder, and the sleeve being fitted around the outer side of the middle part of the muffler cylinder.

[0008] Optionally, noise reduction holes are evenly provided on the side wall of the muffler cylinder, and a first noise reduction section and a second noise reduction section are provided inside the muffler cylinder. A dividing member is provided between the first noise reduction section and the second noise reduction section. The dividing member is provided with several through holes and is located on the inner wall of the muffler cylinder.

[0009] Optionally, sound-absorbing cotton is provided between the inner wall of the sleeve and the outer wall of the silencer cylinder.

[0010] Optionally, the first silencer section is provided with a guide vane assembly, which is disposed on the inner side wall of the silencer cylinder; the guide vane assembly includes a first guide vane and a second guide vane, which are spaced apart; the first guide vane is L-shaped and the second guide vane is T-shaped.

[0011] Optionally, the second silencing section is provided with a plurality of sound-absorbing balls, the sound-absorbing balls being made of plastic and having a plurality of micropores on them.

[0012] Specifically, the micropores are uniformly distributed on the surface of the sound-absorbing ball to capture noise.

[0013] Specifically, the diameter of the micropores is 0.5 to 1 mm, which ensures good sound absorption while reducing clogging problems caused by excessively small micropores.

[0014] Optionally, the vibration damping mechanism includes a support base assembly and a vibration damping component. The support base assembly includes a support member and support legs. The support legs are located at both ends of the support member. The support member supports the pneumatic diaphragm pump body. A connecting member is provided between the support member and the support legs.

[0015] Optionally, the support leg is M-shaped and includes a first support portion and a second support portion, with the first support portion disposed between the second support portions and an arc-shaped groove in the middle of the first support portion.

[0016] Optionally, the vibration damping component is located below the support member, and the vibration damping component includes a fixed plate and several springs, with the springs located between the fixed plate and the support member.

[0017] The beneficial effects that this application may produce include, but are not limited to:

[0018] 1. The vibration-damping and noise-reducing pneumatic diaphragm pump provided in this application reduces noise pollution during use by setting a noise reduction mechanism. By setting a vibration-damping mechanism, on the one hand, the vibration generated during use can be reduced, which is beneficial to the stability of the overall structure, and on the other hand, it can reduce the generation of noise to a certain extent.

[0019] 2. The vibration-damping and noise-reducing pneumatic diaphragm pump provided in this application provides sound-absorbing cotton between the sleeve and the silencer cylinder. When the gas passes through the inside of the silencer cylinder, it comes into contact with the sound-absorbing cotton through the noise-reducing holes on the side wall of the silencer cylinder, thereby absorbing the noise and achieving the effect of noise reduction.

[0020] 3. The vibration-damping and noise-reducing pneumatic diaphragm pump provided in this application, by setting a first noise-reducing section and a second noise-reducing section, the guide plate assembly in the first noise-reducing section guides the gas to reduce noise and wind resistance; in the second noise-reducing section, on the one hand, the sound-absorbing ball can absorb part of the gas and noise, and on the other hand, the gas impacts the sound-absorbing ball, changes the sound frequency, increases friction and reduces noise, thereby playing a role in noise reduction.

[0021] 4. The vibration-damping and noise-reducing pneumatic diaphragm pump provided in this application supports the pneumatic diaphragm pump body by setting a support base assembly and specifically limiting the support legs to improve its stability; the first support part has an arc-shaped groove in the middle to place and support the pneumatic diaphragm pump body, making it more stable; the setting of the fixing plate and spring can play a role in buffering and vibration reduction on the one hand, and on the other hand, it can also play a certain role in noise reduction. Attached Figure Description

[0022] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0023] Figure 1 This is a three-dimensional structural diagram of the pneumatic diaphragm pump body involved in the embodiments of this application;

[0024] Figure 2 This is a schematic cross-sectional view of the noise reduction mechanism involved in the embodiments of this application;

[0025] Figure 3 This is a schematic diagram of the three-dimensional structure of the muffler cylinder involved in the embodiments of this application;

[0026] Figure 4 This is a schematic cross-sectional view of the first noise reduction section involved in an embodiment of this application;

[0027] Figure 5 This is a three-dimensional structural diagram of the vibration damping mechanism involved in the embodiments of this application.

[0028] List of components and reference numerals:

[0029] 1. Pneumatic diaphragm pump body; 2. Motor body; 3. Diaphragm chamber; 4. Inlet pipe; 5. Outlet pipe; 6. Air inlet; 7. Exhaust port; 8. Silencer cylinder; 9. Sleeve; 10. Silencer cover; 11. Noise reduction hole; 12. First silencer section; 13. Second silencer section; 14. Divider; 15. Sound-absorbing cotton; 16. First guide plate; 17. Second guide plate; 18. Support member; 19. Connector; 20. First support part; 21. Second support part; 22. Fixing plate; 23. Spring. Detailed Implementation

[0030] To more clearly illustrate the overall concept of this application, a detailed explanation is provided below with reference to the accompanying drawings.

[0031] To better understand the above-mentioned objectives, features, and advantages of this application, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0032] Many specific details are set forth in the following description in order to provide a full understanding of this application. However, this application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited to the specific embodiments disclosed below.

[0033] Furthermore, it should be understood in the description of this application that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0034] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0035] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0036] In this application, unless otherwise expressly specified and limited, the "above" or "below" of the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. In the description of this specification, references to terms such as "an embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described can be combined in any suitable manner in one or more embodiments or examples.

[0037] refer to Figures 1-5 The present application discloses a vibration-damping and noise-reducing pneumatic diaphragm pump, including a pneumatic diaphragm pump body 1, a noise reduction mechanism, and a vibration reduction mechanism; the vibration reduction mechanism is located below the pneumatic diaphragm pump body 1; the pneumatic diaphragm pump body 1 includes a motor body 2 and a diaphragm chamber 3, the diaphragm chamber 3 is located on both sides of the motor body 2, one end of the diaphragm chamber 3 is provided with an inlet pipe 4, and the other end is provided with an outlet pipe 5; the motor body 2 is provided with an air inlet 6 and an exhaust port 7, and the noise reduction mechanism is connected to the exhaust port 7.

[0038] Specifically, by setting up a noise reduction mechanism, the pneumatic diaphragm pump is subjected to noise reduction treatment to reduce noise pollution generated during use; by setting up a vibration damping mechanism, on the one hand, the vibration generated during use can be reduced, which is beneficial to the stability of the overall structure, and on the other hand, it is beneficial to reduce noise generation to a certain extent.

[0039] In one embodiment, the noise reduction mechanism includes a muffler assembly; the muffler assembly includes a muffler cylinder 8, a sleeve 9 and a muffler cover 10, the muffler cylinder 8 has a structure with an open top and a sealed bottom, the muffler cover 10 is detachably connected to the top of the muffler cylinder 8, and the sleeve 9 is sleeved on the outer side of the middle part of the muffler cylinder 8.

[0040] Specifically, this application does not limit the size of the muffler cylinder 8 or the sleeve 9; those skilled in the art can make the selection based on the actual situation.

[0041] In one embodiment, noise reduction holes 11 are evenly provided on the side wall of the muffler cylinder 8, and a first noise reduction section 12 and a second noise reduction section 13 are provided inside the muffler cylinder 8. A dividing member 14 is provided between the first noise reduction section 12 and the second noise reduction section 13. The dividing member 14 is provided with several through holes and is located on the inner wall of the muffler cylinder 8.

[0042] Specifically, this application does not impose specific limitations on the size or number of noise reduction holes 11, and those skilled in the art can make selections based on actual circumstances.

[0043] Specifically, this application does not limit the number and size of the through holes on the dividing member 14, and those skilled in the art can make the selection according to the actual situation.

[0044] In one embodiment, sound-absorbing cotton 15 is provided between the inner wall of the sleeve 9 and the outer wall of the silencer cylinder.

[0045] Specifically, when the gas passes through the inside of the muffler cylinder, it comes into contact with the sound-absorbing cotton 15 through the noise reduction holes 11 on the side wall of the muffler cylinder 8. As a result, the sound-absorbing cotton 15 absorbs the noise and plays a role in noise reduction.

[0046] In one embodiment, the first silencing section 12 is provided with a guide plate assembly, which is disposed on the inner side wall of the muffler cylinder 8. The guide plate assembly includes a first guide plate 16 and a second guide plate 17, which are spaced apart. The first guide plate 16 is L-shaped and the second guide plate 17 is T-shaped.

[0047] Specifically, this application provides an L-shaped first guide plate 16 and a T-shaped second guide plate 17 that are spaced apart on the inner wall of the silencer cylinder 8 to guide the gas flow and reduce noise.

[0048] As one implementation method, the second silencing section 13 is provided with a plurality of sound-absorbing balls, which are made of plastic and have a plurality of micropores.

[0049] Specifically, micropores are evenly distributed on the surface of the sound-absorbing sphere to capture noise.

[0050] Specifically, the diameter of the micropores is 1mm, which ensures good sound absorption while reducing the risk of clogging due to the small size of the micropores.

[0051] Specifically, this application does not limit the size, number, or number of micropores of the sound-absorbing balls; those skilled in the art can make selections based on the actual situation.

[0052] Specifically, on the one hand, the sound-absorbing ball can absorb some of the gas and noise; on the other hand, the gas impacts the sound-absorbing ball, changing the sound frequency, increasing friction and reducing noise, thereby playing a role in noise reduction.

[0053] Specifically, the first silencing section 12 and the second silencing section 13 work together to guide the flow of gas on the one hand and attract and reduce noise on the other, thus achieving effective noise reduction.

[0054] In one embodiment, the vibration damping mechanism includes a support base assembly and a vibration damping component. The support base assembly includes a support member 18 and support legs. The support legs are located at both ends of the support member 18. The support member 18 supports the pneumatic diaphragm pump body 1. A connector 19 is provided between the support member 18 and the support legs.

[0055] Specifically, a connector 19 is provided between the support member 18 and the support leg, and the support member 18 and the support leg support the pneumatic diaphragm pump body 1.

[0056] In one specific implementation, the connector 19 is arc-shaped.

[0057] In one embodiment, the support leg is M-shaped and includes a first support portion 20 and a second support portion 21. The first support portion 20 is disposed between the second support portions 21, and an arc-shaped groove is provided in the middle of the first support portion 20.

[0058] Specifically, the support legs are designed in an M-shape to improve overall support stability. The first support part 20 is located between the second support parts 21, and the second support parts 21 support the first support part 20. The first support part 20 has an arc-shaped groove in the middle to place and support the pneumatic diaphragm pump body 1, making it more stable.

[0059] In one embodiment, the vibration damping component is located below the support member 18. The vibration damping component includes a fixed plate 22 and several springs 23, with the springs 23 located between the fixed plate 22 and the support member 18.

[0060] Specifically, the fixed plate 22 and the spring 23 can absorb vibration and play a role in buffering and damping, and can also play a certain role in noise reduction.

[0061] Specifically, this application does not impose a specific limit on the number of springs 23, and those skilled in the art can select according to the actual situation.

[0062] The various embodiments in this specification are described in a progressive manner. Similar or identical parts between embodiments can be referred to interchangeably. Each embodiment focuses on describing the differences from other embodiments. In particular, the system embodiments are basically similar to the method embodiments, so the description is relatively simple; relevant parts can be referred to the descriptions in the method embodiments.

[0063] The above description is merely an embodiment of this application and is not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

Claims

1. A vibration-damping and noise-reducing pneumatic diaphragm pump, characterized in that, The device includes a pneumatic diaphragm pump body, a noise reduction mechanism, and a vibration damping mechanism; the vibration damping mechanism is located below the pneumatic diaphragm pump body; the pneumatic diaphragm pump body includes a motor body and a diaphragm chamber, the diaphragm chamber is located on both sides of the motor body, one end of the diaphragm chamber is provided with an inlet pipe, and the other end is provided with an outlet pipe; the motor body is provided with an air inlet and an air outlet, and the noise reduction mechanism is connected to the air outlet.

2. The vibration-damping and noise-reducing pneumatic diaphragm pump according to claim 1, characterized in that, The noise reduction mechanism includes a muffler assembly; the muffler assembly includes a muffler cylinder, a sleeve, and a muffler cover. The muffler cylinder has a structure with an open top and a sealed bottom. The muffler cover is detachably connected to the top of the muffler cylinder, and the sleeve is fitted around the outer side of the middle part of the muffler cylinder.

3. The vibration-damping and noise-reducing pneumatic diaphragm pump according to claim 2, characterized in that, Noise reduction holes are evenly distributed on the side wall of the muffler cylinder. The muffler cylinder has a first noise reduction section and a second noise reduction section inside. A dividing member is provided between the first noise reduction section and the second noise reduction section. The dividing member has several through holes and is located on the inner wall of the muffler cylinder.

4. The vibration-damping and noise-reducing pneumatic diaphragm pump according to claim 2, characterized in that, Sound-absorbing cotton is provided between the inner wall of the sleeve and the outer wall of the silencer cylinder.

5. A vibration-damping and noise-reducing pneumatic diaphragm pump according to claim 3, characterized in that, The first silencer section is provided with a guide vane assembly, which is located on the inner side wall of the silencer cylinder; the guide vane assembly includes a first guide vane and a second guide vane, which are spaced apart; the first guide vane is L-shaped and the second guide vane is T-shaped.

6. A vibration-damping and noise-reducing pneumatic diaphragm pump according to claim 3, characterized in that, The second silencing section is provided with a number of sound-absorbing balls, which are made of plastic and have a number of micropores.

7. The vibration-damping and noise-reducing pneumatic diaphragm pump according to claim 1, characterized in that, The vibration damping mechanism includes a support base assembly and a vibration damping component. The support base assembly includes a support member and support legs. The support legs are located at both ends of the support member. The support member supports the pneumatic diaphragm pump body. A connecting member is provided between the support member and the support legs.

8. A vibration-damping and noise-reducing pneumatic diaphragm pump according to claim 7, characterized in that, The support leg is M-shaped and includes a first support part and a second support part. The first support part is located between the second support parts, and the first support part has an arc-shaped groove in the middle.

9. A vibration-damping and noise-reducing pneumatic diaphragm pump according to claim 7, characterized in that, The vibration damping component is located below the support member. The vibration damping component includes a fixed plate and several springs, with the springs located between the fixed plate and the support member.

Images