Novel diaphragm pump

Abstract

The utility model relates to the technical field of air pumps, in particular to a novel membrane pump which comprises an air chamber box, a bottom plate, an air chamber cover, a membrane and a driving assembly, the air chamber cover is provided with a support plate and a second support plate, the driving assembly comprises a driving motor, an eccentric driven wheel, a rocker arm and an eccentric disc, and the rotating center of the eccentric driven wheel is directly or indirectly installed on the support plate. The center of the eccentric disc is directly or indirectly installed on the second support plate, the rotating center of the eccentric driven wheel is the same as that of the eccentric disc, and the eccentric driven wheel and the eccentric disc are arranged on the two sides of the rocker arm respectively so that the two ends of the assembling rod can be stressed in the same mode. The eccentric driven wheel and the eccentric disc are arranged on the two sides of the rocker arm respectively, so that the two ends of the assembly rod are stressed equally, the problem that the assembly rod is similar to a cantilever beam is solved, vibration is reduced, and the service life is prolonged.

Description

Technical Field

[0001] This utility model relates to the technical field of air pumps, and in particular to a novel diaphragm pump. Background Technology

[0002] The diaphragm pumps currently disclosed in CN202410056561.7 and CN117703724A have a rocker arm mounted on one side of the eccentric driven wheel. The assembly rod connecting the rocker arm and the eccentric driven wheel is in a cantilever beam-like state. As the eccentric driven wheel rotates, the end of the assembly rod away from the eccentric driven wheel swings more and more, resulting in vibration, which reduces the service life of the air pump. Utility Model Content

[0003] The technical problem to be solved by this invention is to provide a novel diaphragm pump that solves the vibration problem of existing diaphragm pumps.

[0004] The solution adopted by this utility model to solve its technical problem is as follows: a novel diaphragm pump, comprising a chamber box, a base plate, a chamber cover, a diaphragm, and a drive assembly. The base plate and the chamber cover are respectively connected to the chamber box on both sides. The diaphragm is installed between the chamber box and the chamber cover. The drive assembly is connected to the diaphragm to realize the diaphragm's air exhaust and intake within the chamber box. The chamber cover is provided with a support plate and a second support plate. The drive assembly is mounted on the support plate of the chamber cover and is used to drive the diaphragm pump for air intake and exhaust. The drive assembly includes a drive motor, an eccentric driven wheel, a rocker arm, and an eccentric disc. The drive motor is disposed on the second surface of the support plate, and the output end of the drive motor passes through the support plate. A drive wheel is disposed on the output end of the drive motor. The eccentric driven wheel is rotatably disposed on the first surface of the support plate. The center is directly or indirectly mounted on the support plate. The eccentric driven wheel is meshed with the driving wheel. An assembly rod is eccentrically mounted on the eccentric driven wheel. The rocker arm includes a driving end and a driven end. The driving end is sleeved on the assembly rod and powered by a drive motor to drive the driving wheel to rotate. Since the driving wheel and the eccentric driven wheel are meshed, the rotation of the driving wheel drives the eccentric driven wheel to rotate. The rocker arm is assembled on an eccentric part of the eccentric driven wheel and an eccentric part of the eccentric disk through the assembly rod, so that the eccentric driven wheel drives the rocker arm to move up and down when it rotates. The center of the eccentric disk is directly or indirectly mounted on the second support plate. The rotation center of the eccentric driven wheel is the same as the rotation center of the eccentric disk. The eccentric driven wheel and the eccentric disk are respectively arranged on both sides of the rocker arm so that the two ends of the assembly rod are subjected to the same force.

[0005] In the above structure, the air chamber box is a box structure with an arc-shaped groove. An air inlet and an air outlet are spaced apart on one side of the air chamber box. An annular wall and a partition wall extend from the second surface of the arc-shaped groove, and the partition wall separates the annular wall. A base plate is disposed on the air chamber box on one side of the second surface of the arc-shaped groove, forming an air inlet chamber and an air outlet chamber together with the annular wall and the partition wall. An air chamber cover is disposed on the air chamber box near the first surface of the arc-shaped groove. A circular hole is provided on the air chamber cover, corresponding to the arc-shaped groove. A support plate is vertically disposed on the first surface of the air chamber cover. A drive assembly is assembled on the support plate and is used to drive the diaphragm pump to perform air inlet and outlet operations.

[0006] In the above structure, a bearing is provided between the eccentric disk and the second support plate to facilitate the rotation of the eccentric disk relative to the second support plate.

[0007] In the above structure, a bearing is provided between the eccentric driven wheel and the support plate to facilitate the rotation of the eccentric driven wheel relative to the support plate.

[0008] The technical advantages of this invention are as follows: by setting an eccentric disc, the eccentric driven wheel and the eccentric disc are respectively set on both sides of the rocker arm so that the two ends of the assembly rod are subjected to the same force, which solves the problem of the assembly rod being similar to a cantilever beam, reduces vibration and extends service life.

[0009] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0010] Figure 1 This is a perspective view of the present utility model;

[0011] Figure 2 This is an exploded view of the present invention.

[0012] In the diagram: 10, air chamber box; 30, air chamber cover; 32, support plate; 39, second support plate; 42, eccentric driven wheel; 43, assembly rod; 44, rocker arm; 48, bearing; 49, eccentric disc. Detailed Implementation

[0013] To make the content of this utility model easier to understand, the present utility model will be further described below with reference to specific embodiments and accompanying drawings.

[0014] It should be noted that the terms "center," "upper," "lower," "front," "rear," "left," "right," "inner," and "outer" used herein to indicate the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model 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, and therefore should not be construed as a limitation of this utility model. Unless otherwise stated, "a plurality of" means two or more.

[0015] Unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0016] Referring to the accompanying drawings, a novel diaphragm pump includes a chamber box 10, a base plate, a chamber cover 30, a diaphragm, and a drive assembly. The base plate and the chamber cover 30 are respectively connected to the chamber box 10 on both sides. The diaphragm is installed between the chamber box 10 and the chamber cover 30. The drive assembly is connected to the diaphragm to enable the diaphragm to exhaust and draw air from the chamber box 10. The chamber cover 30 is provided with a support plate and a second support plate 39. The drive assembly is mounted on the support plate 32 of the chamber cover 30 and is used to drive the diaphragm pump to perform air intake and exhaust operations. The drive assembly includes a drive motor, an eccentric driven wheel 42, a rocker arm 44, and an eccentric disk 49. The drive motor is disposed on the second surface of the support plate 32, and the output end of the drive motor passes through the support plate 32. A drive wheel is disposed on the output end of the drive motor. The eccentric driven wheel 42 is rotatably disposed on the first surface of the support plate 32, and the center of rotation of the eccentric driven wheel 42 is... The eccentric driven wheel 42 is directly or indirectly mounted on the support plate 32 and meshes with the driving wheel. An assembly rod 43 is eccentrically mounted on the eccentric driven wheel 42. The rocker arm 44 includes a driving end and a driven end. The driving end is sleeved on the assembly rod 43 and is powered by a drive motor to drive the driving wheel to rotate. Since the driving wheel and the eccentric driven wheel 42 are meshed, the rotation of the driving wheel drives the eccentric driven wheel 42 to rotate. The rocker arm 44 is mounted on an eccentric part of the eccentric driven wheel 42 and an eccentric part of the eccentric disk 49 through the assembly rod 43, so that the eccentric driven wheel 42 drives the rocker arm 44 to move up and down when it rotates. The center of the eccentric disk 49 is directly or indirectly mounted on the second support plate 39. The rotation center of the eccentric driven wheel 42 is the same as the rotation center of the eccentric disk 49. The eccentric driven wheel 42 and the eccentric disk 49 are respectively arranged on both sides of the rocker arm 44 so that the two ends of the assembly rod 43 are subjected to the same force.

[0017] Furthermore, the air chamber box 10 is a box structure, and an arc-shaped groove is provided on the air chamber box 10. An air inlet and an air outlet are spaced apart on one side of the air chamber box 10. An annular wall and a partition wall extend from the second surface of the arc-shaped groove, and the partition wall separates the annular wall. A bottom plate is provided on the air chamber box 10 on one side of the second surface of the arc-shaped groove, and together with the annular wall and the partition wall, it forms an air inlet chamber and an air outlet chamber. An air chamber cover 30 is provided on the air chamber box 10 near the first surface of the arc-shaped groove. A circular hole is provided on the air chamber cover 30, and the circular hole corresponds to the arc-shaped groove. A support plate 32 is vertically provided on the first surface of the air chamber cover 30. A drive assembly is assembled on the support plate 32 and is used to drive the diaphragm pump to perform air inlet and outlet operations.

[0018] Furthermore, a bearing 48 is provided between the eccentric disk 49 and the second support plate 39 to facilitate the rotation of the eccentric disk 49 relative to the second support plate 39.

[0019] Furthermore, a bearing 48 is provided between the eccentric driven wheel 42 and the support plate 32 to facilitate the rotation of the eccentric driven wheel 42 relative to the support plate 32.

[0020] This invention solves the problem of the assembly rod being similar to a cantilever beam by setting an eccentric disk 49, with the eccentric driven wheel 42 and the eccentric disk 49 respectively set on both sides of the rocker arm 44 so that the two ends of the assembly rod 43 are subjected to the same force, thereby reducing vibration and extending service life.

[0021] The embodiments described above are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and modifications made by those skilled in the art based on this utility model shall fall within the scope of protection of this utility model.

Claims

1. A new type of thin film pump characterized by: The application relates to a diaphragm pump, which comprises a chamber box, a bottom plate, a chamber cover, a diaphragm and a driving assembly, wherein the bottom plate and the chamber cover are connected to the chamber box at two sides of the chamber box respectively, the diaphragm is arranged between the chamber box and the chamber cover, and the driving assembly is connected to the diaphragm to realize the exhaust and air intake of the diaphragm in the chamber box; the chamber cover is provided with a support plate and a second support plate, the driving assembly is assembled on the support plate of the chamber cover, and the driving assembly is used for driving the diaphragm pump to perform air intake and exhaust work; the driving assembly comprises a driving motor, an eccentric driven wheel, a rocker arm and an eccentric disc; the driving motor is arranged on a second surface of the support plate; the output end of the driving motor penetrates through the support plate; a driving wheel is arranged on the output end of the driving motor; the eccentric driven wheel is rotatably arranged on a first surface of the support plate; the rotation center of the eccentric driven wheel is directly or indirectly mounted on the support plate; the eccentric driven wheel is meshed with the driving wheel; an assembly rod is arranged on the eccentric driven wheel; the rocker arm comprises a driving end and a driven end; the driving end is sleeved and mounted on the assembly rod; the driving motor provides power to drive the driving wheel to rotate; the driving wheel drives the eccentric driven wheel to rotate due to the meshing of the driving wheel and the eccentric driven wheel; the rocker arm is assembled on one eccentric position of the eccentric driven wheel and one eccentric position of the eccentric disc through the assembly rod, so that the eccentric driven wheel drives the rocker arm to move up and down when rotating; the center of the eccentric disc is directly or indirectly mounted on the second support plate; the eccentric disc is mounted on the second support plate; the rotation center of the eccentric driven wheel is the same as that of the eccentric disc; the eccentric driven wheel and the eccentric disc are arranged on two sides of the rocker arm respectively, so that the two ends of the assembly rod bear the same force.

2. The new thin film pump according to claim 1, characterized in that: The chamber box is in a box body structure; an arc-shaped groove is arranged on the chamber box; an air inlet cylinder and an air outlet cylinder are arranged on one side of the chamber box at intervals; a second surface of the arc-shaped groove extends out a ring wall and a partition wall; the partition wall separates the ring wall; the bottom plate is arranged on the chamber box and located on one side of the second surface of the arc-shaped groove; the ring wall and the partition wall are combined to form an air inlet cavity and an air outlet cavity; the chamber cover is arranged on the chamber box and located on one side close to a first surface of the arc-shaped groove; a circular hole penetrating through the chamber cover is arranged on the chamber cover and corresponds to the arc-shaped groove; a support plate is vertically arranged on a first surface of the chamber cover; the driving assembly is assembled on the support plate and used for driving the diaphragm pump to perform air intake and exhaust work.

3. The novel thin film pump as claimed in claim 1, wherein: A bearing is arranged between the eccentric disc and the second support plate to facilitate the rotation of the eccentric disc relative to the second support plate.

4. The novel thin film pump as claimed in claim 1, wherein: A bearing is arranged between the eccentric driven wheel and the support plate to facilitate the rotation of the eccentric driven wheel relative to the support plate.

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