Diaphragm pump with low noise, low vibration and large displacement

Abstract

The utility model relates to the technical field of diaphragm pumps, and discloses a low-noise, low-vibration and large-displacement diaphragm pump which comprises a bottom plate and a shell, and the shell is movably arranged above the bottom plate. A motor is fixedly installed on one side of the shell, a transmission shaft of the motor extends into the shell, a rotating shaft is fixedly installed above the transmission shaft of the motor, an eccentric wheel is fixedly connected to the upper portion of the rotating shaft in a sleeving mode, and a moving wheel is movably connected to the upper portion of the eccentric wheel in a sleeving mode. By starting the motor to drive the rotating shaft to rotate, compared with a traditional device, the device improves the sealing condition, so that gas in a specific range can be extracted in a long-distance sealing mode through a pipeline, the suction force is large, the noise is low, the service life is long, the stress condition of a diaphragm during long-time work is improved, and the service life of the diaphragm is prolonged. The efficiency of the micro diaphragm pump is improved; the supporting mode of the original motor shaft is improved, and the reliability and the service life of the micro diaphragm pump are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of diaphragm pumps, and more specifically, to a diaphragm pump with low noise, low vibration and large displacement. Background Art

[0002] With the continuous development of the global industrial sector and technological advancement, the application scope of diaphragm pumps will further expand and market demand will continue to grow. In particular, as environmental protection and energy efficiency requirements increase, diaphragm pumps, as environmentally friendly equipment, will receive more attention and application.

[0003] When a general diaphragm pump is in use, the motor is first started to drive the rotation of the rotating shaft, which in turn drives the rotation of the eccentric wheel, which in turn drives the movement of the connecting rod, which in turn drives the piston to move up and down inside the pump body. The gas is sucked in and discharged through the up and down movement of the piston. However, since general diaphragm pumps are noisy when in use, resulting in low efficiency, they need to be modified and optimized. Utility Model Content

[0004] In order to overcome the deficiencies of the prior art, the utility model provides a diaphragm pump with low noise, low vibration and large displacement, which has the advantages of small size, low noise, long life and large displacement.

[0005] To achieve the above object, the utility model provides the following technical solution: a low-noise, low-vibration, large-displacement diaphragm pump, comprising a base plate and a shell, wherein the shell is movably arranged above the base plate;

[0006] A motor is fixedly mounted on one side of the shell, and a transmission shaft of the motor extends to the interior of the shell, a rotating shaft is fixedly mounted above the transmission shaft of the motor, an eccentric wheel is fixedly sleeved above the rotating shaft, a moving wheel is movably sleeved above the eccentric wheel, a connecting rod is fixedly mounted on the side of the moving wheel, a diaphragm pressure plate is fixedly mounted above the connecting rod, a connecting shell is fixedly mounted above the shell, a pump body is movably mounted above the connecting shell, the diaphragm pressure plate is located inside the pump body, a pipe one is fixedly mounted on one side of the pump body, a valve is fixedly mounted on one end of the pipe one, one end of the valve is fixedly connected to the other pump body, a pipe two is fixedly mounted on the side of the other pump body, a valve two is fixedly mounted on one end of the pipe two, one end of the valve two is fixedly connected to the pump body, and a muffler is fixedly mounted on the other end of the valve two.

[0007] As a preferred technical solution of the present invention, a fan is fixedly sleeved above the rotating shaft, and the fan is located inside the housing.

[0008] As a preferred technical solution of the present invention, a fixing bracket is rotatably mounted on one end of the rotating shaft, and a side surface of the fixing bracket is fixedly connected to the housing.

[0009] As a preferred technical solution of the present invention, there are two pump bodies and two connecting shells, and a diaphragm pressure plate is provided inside each pump body and each connecting shell.

[0010] As a preferred technical solution of the present invention, a bolt 1 is threadedly sleeved on the upper portion of the pump body, and the bottom of the bolt 1 extends to the interior of the connecting shell and is threadedly sleeved on the connecting shell.

[0011] As a preferred technical solution of the present invention, a second bolt is movably installed on the upper part of the shell, the bottom of the second bolt passes through the upper and lower sides of the shell and extends to the inside of the bottom plate, and the second bolt is threadedly connected with the bottom plate and the shell.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0013] The utility model starts the motor to drive the rotation of the rotating shaft, and the rotation of the rotating shaft drives the rotation of the eccentric wheel. As the eccentric wheel rotates, the movable wheel is driven to move back and forth, and the reciprocating movement of the movable wheel drives the connecting rod to move back and forth, thereby driving the diaphragm pressure plate to move back and forth. Compared with the traditional device, the utility model improves the sealing condition, so that gas within a specific range can be extracted through a pipeline at a long distance and sealed. It has strong suction, low noise, and long service life, improves the stress condition of the diaphragm when working for a long time, extends the service life of the diaphragm, and improves the efficiency of the micro diaphragm pump; improves the support method of the original motor shaft, and improves the reliability and service life of the micro diaphragm pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of the utility model;

[0015] Figure 2 This is a side structural diagram of the utility model;

[0016] Figure 3 This is a schematic diagram of the internal structure of the shell of the utility model;

[0017] Figure 4 For this utility model Figure 3 A local enlarged schematic diagram of point A;

[0018] Figure 5 This is a schematic diagram of the bottom structure of the utility model.

[0019] In the figure: 1. Base plate; 2. Shell; 3. Fixed bracket; 4. Motor; 5. Pump body; 6. Pipeline 1; 7. Valve; 8. Connecting shell; 9. Pipeline 2; 10. Valve 2; 11. Muffler; 12. Rotating shaft; 13. Eccentric wheel; 14. Moving wheel; 15. Connecting rod; 16. Diaphragm pressure plate; 17. Bolt 1; 18. Bolt 2; 19. Fan. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] like Figures 1 to 5 As shown, the utility model provides a low-noise, low-vibration, large-displacement diaphragm pump, comprising a base plate 1 and a shell 2, wherein the shell 2 is movably arranged above the base plate 1;

[0022] A motor 4 is fixedly mounted on one side of the shell 2, and the transmission shaft of the motor 4 extends to the inside of the shell 2. A rotating shaft 12 is fixedly mounted above the transmission shaft of the fixed frame 3, an eccentric wheel 13 is fixedly sleeved above the rotating shaft 12, and a moving wheel 14 is movably sleeved above the eccentric wheel 13, a connecting rod 15 is fixedly mounted on the side of the moving wheel 14, and a diaphragm pressure plate 16 is fixedly mounted above the connecting rod 15, a connecting shell 8 is fixedly mounted above the shell 2, a pump body 5 is movably mounted above the connecting shell 8, and the diaphragm pressure plate 16 is located inside the pump body 5, a pipe 16 is fixedly mounted on one side of the pump body 5, a valve 7 is fixedly mounted on one end of the pipe 16, and one end of the valve 7 is fixedly connected to the other pump body 5, a pipe 2 9 is fixedly mounted on the side of the other pump body 5, a valve 2 10 is fixedly mounted on one end of the pipe 2 9, one end of the valve 2 10 is fixedly connected to the pump body 5, and a muffler 11 is fixedly mounted on the other end of the valve 2 10.

[0023] When the staff uses it, the staff first starts the motor 4. When the motor 4 starts, it will drive the rotation of the rotating shaft 12. When the rotating shaft 12 rotates, it will drive the rotation of the fan 19. Through the rotation of the fan 19 and the rotating shaft 12, it will drive the rotation of the eccentric wheel 13. When the eccentric wheel 13 rotates, it will drive the movable wheel 14 to move back and forth. When the movable wheel 14 moves back and forth, it will drive the connecting rod 15 to move back and forth. When the connecting rod 15 moves back and forth, it will drive the connecting rod 15 to move back and forth. Through the reciprocating movement of the connecting rod 15 inside the pump body 5, the air medium inside the pump body 5 is continuously sucked in and discharged.

[0024] By starting the motor 4, the rotation of the rotating shaft 12 is driven, and the rotation of the rotating shaft 12 drives the rotation of the eccentric wheel 13. As the eccentric wheel 13 rotates, the moving wheel 14 is driven to move back and forth. The reciprocating movement of the moving wheel 14 drives the connecting rod 15 to move back and forth, thereby driving the diaphragm pressure plate 16 to move back and forth. Compared with the traditional device, the device improves the sealing condition, so that the gas within a specific range can be extracted through the pipeline at a long distance. It has strong suction, low noise, and long service life. It improves the stress condition of the diaphragm when working for a long time, extends the service life of the diaphragm, and improves the efficiency of the micro diaphragm pump; improves the support method of the original motor shaft, and improves the reliability and service life of the micro diaphragm pump.

[0025] A fan 19 is fixedly sleeved on the upper portion of the rotating shaft 12 , and the fan 19 is located inside the housing 2 .

[0026] The rotation of the rotating shaft 12 drives the rotation of the fan 19 . The design of the fan 19 allows the air outside the device to be sucked in.

[0027] A fixing bracket 3 is rotatably mounted on one end of the rotating shaft 12 , and a side surface of the fixing bracket 3 is fixedly connected to the housing 2 .

[0028] Through the design of the fixing frame 3, one end of the rotating shaft 12 can be supported, thereby improving the stability of the rotating shaft 12 during rotation.

[0029] There are two pump bodies 5 and two connecting shells 8 , and a diaphragm pressure plate 16 is provided inside each pump body 5 and each connecting shell 8 .

[0030] The design of the two pump bodies 5 and the connecting shell 8 increases the amount of air sucked in and discharged, thereby improving work efficiency.

[0031] Among them, a bolt 17 is threadedly sleeved on the upper part of the pump body 5, and the bottom of the bolt 17 extends to the interior of the connecting shell 8 and is threadedly sleeved on the connecting shell 8.

[0032] Through the design of the bolt 17, the pump body 5 and the connecting shell 8 can be fixed, thereby facilitating disassembly.

[0033] Among them, a second bolt 18 is movably installed on the upper part of the shell 2. The bottom of the second bolt 18 passes through the upper and lower sides of the shell 2 and extends to the inside of the bottom plate 1. The second bolt 18 is threadedly connected with the bottom plate 1 and the shell 2.

[0034] By screwing the second bolt 18 , the second bolt 18 is moved out of the interior of the base plate 1 , thereby enabling the base plate 1 and the housing 2 to be disassembled.

[0035] The working principle and use process of this utility model:

[0036] When the staff uses it, the staff first starts the motor 4. When the motor 4 starts, it will drive the rotation of the rotating shaft 12. When the rotating shaft 12 rotates, it will drive the rotation of the fan 19. Through the rotation of the fan 19 and the rotating shaft 12, it will drive the rotation of the eccentric wheel 13. When the eccentric wheel 13 rotates, it will drive the movable wheel 14 to move back and forth. When the movable wheel 14 moves back and forth, it will drive the connecting rod 15 to move back and forth. When the connecting rod 15 moves back and forth, it will drive the connecting rod 15 to move back and forth. Through the reciprocating movement of the connecting rod 15 inside the pump body 5, the air medium inside the pump body 5 is continuously sucked in and discharged.

[0037] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0038] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A low-noise, low-vibration, large-displacement diaphragm pump, comprising a base plate (1) and a housing (2), characterized in that: The housing (2) is movably arranged above the bottom plate (1); A motor (4) is fixedly mounted on one side of the housing (2), a transmission shaft of the motor (4) extends into the interior of the housing (2), a rotating shaft (12) is fixedly mounted above the transmission shaft of the motor (4), an eccentric wheel (13) is fixedly sleeved above the rotating shaft (12), a moving wheel (14) is movably sleeved above the eccentric wheel (13), a connecting rod (15) is fixedly mounted on the side of the moving wheel (14), a diaphragm pressure plate (16) is fixedly mounted above the connecting rod (15), a connecting shell (8) is fixedly mounted above the housing (2), and a connecting shell (8) is fixedly mounted above the connecting shell (8). A pump body (5) is movably mounted, the diaphragm pressure plate (16) is located inside the pump body (5), a pipe (6) is fixedly mounted on one side of the pump body (5), a valve (7) is fixedly mounted on one end of the pipe (6), one end of the valve (7) is fixedly connected to another pump body (5), a pipe (9) is fixedly mounted on the side of the other pump body (5), a valve (10) is fixedly mounted on one end of the pipe (9), one end of the valve (10) is fixedly connected to the pump body (5), and a muffler (11) is fixedly mounted on the other end of the valve (10).

2. A low-noise, low-vibration, large-displacement diaphragm pump according to claim 1, characterized in that: A fan (19) is fixedly sleeved above the rotating shaft (12), and the fan (19) is located inside the housing (2).

3. The low-noise, low-vibration, large-displacement diaphragm pump according to claim 1, characterized in that: A fixing frame (3) is rotatably mounted on one end of the rotating shaft (12), and a side surface of the fixing frame (3) is fixedly connected to the housing (2).

4. The low-noise, low-vibration, large-displacement diaphragm pump according to claim 1, characterized in that: The number of the pump bodies (5) and the connecting shells (8) is two, and a diaphragm pressure plate (16) is provided inside each pump body (5) and connecting shell (8).

5. The low-noise, low-vibration, large-displacement diaphragm pump according to claim 1, characterized in that: A bolt 1 (17) is threadedly sleeved on the upper portion of the pump body (5), and the bottom of the bolt 1 (17) extends into the interior of the connecting shell (8) and is threadedly sleeved on the connecting shell (8).

6. The low-noise, low-vibration, large-displacement diaphragm pump according to claim 1, characterized in that: A second bolt (18) is movably mounted on the upper portion of the housing (2). The bottom of the second bolt (18) passes through the upper and lower sides of the housing (2) and extends to the interior of the bottom plate (1). The second bolt (18) is threadedly sleeved with the bottom plate (1) and the housing (2).

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