Anti-fatigue diaphragm assembly for diaphragm pump

Abstract

The utility model discloses an anti-fatigue diaphragm assembly for a diaphragm pump, and belongs to the technical field of diaphragm pumps. An anti-fatigue diaphragm assembly for a diaphragm pump comprises an assembly pipe installed in a cavity of the diaphragm pump in a sliding mode, and further comprises two diaphragm rings installed at the two ends of the assembly pipe respectively, diaphragm bodies are fixedly connected to the two diaphragm rings, and the diaphragm bodies are in a corrugated shape; according to the diaphragm assembly, the supporting sleeve, the buffer disc and the spring are matched for use, so that the diaphragm main body and the diaphragm ring which move circularly can be buffered, the impact force generated when the diaphragm main body and the diaphragm ring move is reduced, the diaphragm main body and the diaphragm ring are prevented from being excessively deformed, and the anti-fatigue performance of the diaphragm assembly is improved; the diaphragm main body and the diaphragm ring are not easy to crack under movement stretching, and frequent shutdown for maintenance or diaphragm replacement is not needed, so that the maintenance cost is reduced, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of diaphragm pumps, in particular to an anti-fatigue diaphragm assembly for a diaphragm pump. Background Art

[0002] A diaphragm pump is a pump that uses the reciprocating motion of an elastic diaphragm to transport fluids. It is widely used in industries such as chemical engineering, pharmaceuticals, and food processing. Among them, the diaphragm assembly of the diaphragm pump is one of its key components, which is responsible for converting mechanical energy into fluid pressure energy to achieve the suction and discharge of fluids.

[0003] In each of the two symmetrical working chambers of the diaphragm pump, a diaphragm is installed. The two diaphragms are connected into one body by a fixing member to form a diaphragm assembly. During operation, the external compressed air enters the air distribution valve from the air inlet of the pump, and the compressed air is introduced into one of the chambers through the air distribution valve to push the diaphragm in the chamber to move, while the gas in the other chamber is discharged. Through the cyclic movement of the two diaphragms, a negative pressure is formed in the chamber, thereby realizing the pumping of fluids.

[0004] However, during the operation of the current diaphragm assembly, the diaphragm is prone to micro-cracks due to excessive deformation and stress accumulation under cyclic movement and stretching. These generated cracks are likely to cause the diaphragm to rupture, thereby affecting the normal operation of the pump, and it is necessary to frequently stop the machine for maintenance or replace the diaphragm, which increases the maintenance cost and reduces the production efficiency. Therefore, to solve the above-mentioned problems, an anti-fatigue diaphragm assembly for a diaphragm pump is provided. Summary of the Utility Model

[0005] The purpose of the utility model is to solve the problem that the diaphragm in the current diaphragm pump is prone to rupture under cyclic movement and stretching, resulting in the need to frequently stop the machine for maintenance or replace the diaphragm, thereby increasing the maintenance cost and reducing the production efficiency, and to propose an anti-fatigue diaphragm assembly for a diaphragm pump.

[0006] To achieve the above purpose, the utility model adopts the following technical scheme:

[0007] An anti-fatigue diaphragm assembly for a diaphragm pump includes an assembly pipe slidably installed in the cavity of the diaphragm pump, and further includes: two diaphragm rings, respectively installed at both ends of the assembly pipe. Among them, diaphragm bodies are fixedly connected to both of the diaphragm rings. The shape of the diaphragm body is corrugated, and the diaphragm body and the diaphragm ring are integrally formed. The diaphragm body is connected to the assembly pipe through a fixing member; a support sleeve fixedly installed in the cavity of the diaphragm pump, sleeved on the assembly pipe. Among them, the assembly pipe and the support sleeve are slidably connected, and buffer members are provided on both sides of the support sleeve, and the buffer members are used to reduce the impact force when the diaphragm body and the diaphragm ring move.

[0008] To buffer the diaphragm body and the diaphragm ring, preferably, the buffer member includes a buffer disk slidably mounted on the support sleeve, and a spring is fixedly installed between the buffer disk and the support sleeve.

[0009] To guide the buffer disk, further, a guide tube is fixedly connected to the support sleeve, a guide rod is fixedly connected to the buffer disk, and the guide rod is slidably connected inside the guide tube.

[0010] To facilitate the installation and fixation of the support sleeve, preferably, a support rod is fixedly connected to the support sleeve, one end of the support rod is fixedly connected to a mounting plate, and mounting holes are respectively formed through the four corners of the mounting plate.

[0011] To threadedly connect the two diaphragm rings and the diaphragm body to the assembly pipe, preferably, the fixing member includes a bolt and a fixing disk, the fixing disk is sleeved on the bolt, and one end of the bolt passes through the diaphragm body and is threadedly connected to the assembly pipe.

[0012] To ensure the anti-fatigue performance of the diaphragm assembly, preferably, the materials of the diaphragm ring and the diaphragm body are ethylene propylene diene monomer (EPDM) rubber, and the thicknesses of the diaphragm ring and the diaphragm body are 2.0 mm - 3.0 mm.

[0013] Compared with the prior art, the present utility model provides an anti-fatigue diaphragm assembly for a diaphragm pump, having the following beneficial effects:

[0014] 1. For this anti-fatigue diaphragm assembly for a diaphragm pump, through the combined use of the support sleeve, the buffer disk and the spring, it can buffer the diaphragm body and the diaphragm ring in circular motion, so as to reduce the impact force when the diaphragm body and the diaphragm ring move, prevent the diaphragm body and the diaphragm ring from being overly deformed, and further improve the anti-fatigue performance of the diaphragm assembly, making the diaphragm body and the diaphragm ring not easily rupture under tensile movement, without the need for frequent shutdown for maintenance or replacement of the diaphragm, thereby reducing the maintenance cost and improving the production efficiency.

[0015] 2. For this anti-fatigue diaphragm assembly for a diaphragm pump, through the corrugated design of the diaphragm body, it can cause more elastic deformation when the diaphragm body and the diaphragm ring are in tensile movement. This kind of deformation can better absorb and release stress, reduce the accumulation of stress, making the diaphragm body and the diaphragm ring not easily rupture. At the same time, the gaps between the corrugations can play a certain buffering role, further reducing the impact force when the diaphragm ring and the diaphragm body move, contributing to improving the anti-fatigue performance of the diaphragm assembly and extending the service life of the diaphragm assembly.

[0016] The parts not involved in this device are the same as the prior art or can be implemented using the prior art. The utility model solves the problem that the diaphragm in the current diaphragm pump is prone to rupture under cyclic motion stretching, resulting in frequent shutdowns for maintenance or diaphragm replacement, thereby increasing the maintenance cost and reducing the production efficiency. Brief Description of the Drawings

[0017] Figure 1 It is an isometric structural schematic diagram of an anti-fatigue diaphragm assembly for a diaphragm pump proposed by the utility model;

[0018] Figure 2 It is a partial isometric structural schematic of an anti-fatigue diaphragm assembly for a diaphragm pump proposed by the utility model Figure 1 ;

[0019] Figure 3 It is a partial isometric structural schematic of an anti-fatigue diaphragm assembly for a diaphragm pump proposed by the utility model Figure 2 ;

[0020] Figure 4 It is a partial exploded view of an anti-fatigue diaphragm assembly for a diaphragm pump proposed by the utility model.

[0021] In the figure: 1, assembly pipe; 2, diaphragm ring; 3, diaphragm body; 4, bolt; 41, fixing plate; 5, support sleeve; 51, support rod; 52, mounting plate; 53, mounting hole; 6, buffer plate; 7, spring; 8, guide pipe; 9, guide rod. Detailed Description of the Invention

[0022] Next, the technical solutions in the embodiments of the utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all of the embodiments.

[0023] In the description of the utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the utility model.

[0024] Embodiment:

[0025] Refer to Figures 1 - 4, an embodiment of the present utility model provides an anti-fatigue diaphragm assembly for a diaphragm pump, which includes an assembly pipe 1 slidably installed in the diaphragm pump cavity, and further includes: two diaphragm rings 2 respectively installed at both ends of the assembly pipe 1. Among them, diaphragm bodies 3 are fixedly connected to both of the two diaphragm rings 2. The shape of the diaphragm body 3 is corrugated, and the diaphragm body 3 and the diaphragm ring 2 are integrally formed. The diaphragm body 3 is connected to the assembly pipe 1 through a fixing member; a support sleeve 5 fixedly installed in the diaphragm pump cavity, which is sleeved on the assembly pipe 1. Among them, the assembly pipe 1 and the support sleeve 5 are slidably connected, and buffer members are provided on both sides of the support sleeve 5, and the buffer members are used to reduce the impact force when the diaphragm body 3 and the diaphragm ring 2 move.

[0026] Specifically, during use, through the arrangement of the buffer members, the reciprocating diaphragm body 3 and diaphragm ring 2 can be buffered to reduce the impact force when the diaphragm body 3 and diaphragm ring 2 move, prevent the diaphragm body 3 and diaphragm ring 2 from being excessively deformed, and then improve the anti-fatigue performance of the diaphragm assembly, so that the diaphragm body 3 and diaphragm ring 2 are not easily cracked under tensile movement, without frequent shutdown for maintenance or diaphragm replacement, thereby reducing the maintenance cost and improving the production efficiency. And through the corrugated design of the diaphragm body 3, more elastic deformation can be generated when the diaphragm body 3 and diaphragm ring 2 are stretched, reducing the accumulation of stress, making the diaphragm body 3 and diaphragm ring 2 not easily cracked, so as to extend the service life of the diaphragm assembly.

[0027] The buffer member includes a buffer disc 6 slidably installed on the support sleeve 5, and a spring 7 is fixedly installed between the buffer disc 6 and the support sleeve 5.

[0028] Specifically, when the diaphragm pump works, the assembly pipe 1, the diaphragm ring 2 and the diaphragm body 3 perform reciprocating motion. During the motion process, through the combined use of the buffer disc 6 and the spring 7, the reciprocating diaphragm body 3 and diaphragm ring 2 can be buffered to reduce the impact force when the diaphragm body 3 and diaphragm ring 2 move, prevent the diaphragm body 3 and diaphragm ring 2 from being excessively deformed, so as to improve the anti-fatigue performance of the diaphragm assembly, making the diaphragm not easily cracked under tensile movement, without frequent shutdown for maintenance or diaphragm replacement, thereby reducing the maintenance cost and improving the production efficiency.

[0029] A guide pipe 8 is fixedly connected to the support sleeve 5, a guide rod 9 is fixedly connected to the buffer disc 6, and the guide rod 9 is slidably connected in the guide pipe 8.

[0030] Specifically, through the arrangement of the guide pipe 8 and the guide rod 9, the buffer disc 6 can be guided to prevent it from bending, ensuring the buffering effect on the diaphragm ring 2 and the diaphragm body 3.

[0031] A support rod 51 is fixedly connected to the support sleeve 5, one end of the support rod 51 is fixedly connected to a mounting plate 52, and mounting holes 53 are respectively formed through the four corners of the mounting plate 52.

[0032] Specifically, through the provision of the support rod 51, the mounting plate 52 and the mounting hole 53, it is possible to facilitate the fixed installation of the support sleeve 5 in the cavity of the diaphragm pump.

[0033] The fixing member includes a bolt 4 and a fixing disk 41. The fixing disk 41 is sleeved on the bolt 4, and one end of the bolt 4 passes through the diaphragm main body 3 and is threadedly connected to the assembly pipe 1.

[0034] Specifically, through the provision of the bolt 4 and the fixing disk 41, the two diaphragm rings 2 and the diaphragm main body 3 can be threadedly connected to the assembly pipe 1, and by means of the threaded connection, it is also possible to facilitate the disassembly, installation and replacement of the diaphragm rings 2 and the diaphragm main body 3.

[0035] The materials of the diaphragm rings 2 and the diaphragm main body 3 are ethylene propylene diene monomer (EPDM) rubber, and the thicknesses of the diaphragm rings 2 and the diaphragm main body 3 are 2.0 mm - 3.0 mm.

[0036] Specifically, by using ethylene propylene diene monomer (EPDM) rubber, which has excellent chemical resistance, aging resistance, elasticity and wear resistance, it is possible to ensure the anti-fatigue performance of the diaphragm assembly, and through the thickness of 2.0 mm - 3.0 mm, it is possible to further ensure the anti-fatigue performance of the diaphragm assembly.

[0037] Working principle: During the use of the anti-fatigue diaphragm assembly of this diaphragm pump, when the diaphragm pump is working, the assembly pipe 1, the diaphragm rings 2 and the diaphragm main body 3 perform a cyclic motion. During the motion, through the combined use of the support sleeve 5, the buffer disk 6 and the spring 7, it is possible to buffer the cyclic motion of the diaphragm main body 3 and the diaphragm rings 2, so as to reduce the impact force during the motion of the diaphragm main body 3 and the diaphragm rings 2, prevent the diaphragm main body 3 and the diaphragm rings 2 from being excessively deformed, and thus improve the anti-fatigue performance of the diaphragm assembly, so that the diaphragm main body 3 and the diaphragm rings 2 are not easily broken under the stretching motion, without the need for frequent shutdown for maintenance or replacement of the diaphragm, thereby reducing the maintenance cost and improving the production efficiency;

[0038] Moreover, through the corrugated design of the diaphragm main body 3, it is possible to generate more elastic deformation when the diaphragm main body 3 and the diaphragm rings 2 perform a stretching motion. This deformation can better absorb and release stress, reduce the accumulation of stress, make the diaphragm main body 3 and the diaphragm rings 2 not easily broken, and at the same time, the gaps between the corrugations can play a certain buffering role, further reducing the impact force during the motion of the diaphragm rings 2 and the diaphragm main body 3, contributing to improving the anti-fatigue performance of the diaphragm assembly and extending the service life of the diaphragm assembly.

[0039] The above are only the preferred specific embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and the inventive concept of the present utility model, making equivalent substitutions or changes, shall be covered by the protection scope of the present utility model.

Claims

1. An anti-fatigue diaphragm assembly for a diaphragm pump, comprising an assembly tube (1) slidably mounted in a cavity of the diaphragm pump, characterized in that: Also includes: Two diaphragm rings (2) are respectively installed at the two ends of the assembly tube (1). Wherein, the two diaphragm rings (2) are both fixedly connected to a diaphragm body (3), the diaphragm body (3) is in a corrugated shape, and the diaphragm body (3) and the diaphragm ring (2) are integrally formed, and the diaphragm body (3) is connected to the assembly tube (1) via a fixing member; A support sleeve (5) fixedly mounted in the cavity of the diaphragm pump is sleeved on the assembly pipe (1). The assembly tube (1) is slidably connected to the support sleeve (5), and buffer components are provided on both sides of the support sleeve (5), and the buffer components are used to reduce the impact force of the diaphragm body (3) and the diaphragm ring (2) during movement.

2. The anti-fatigue diaphragm assembly for a diaphragm pump according to claim 1, characterized in that: The buffer component comprises a buffer disk (6) slidably mounted on a support sleeve (5), and a spring (7) is fixedly mounted between the buffer disk (6) and the support sleeve (5).

3. The anti-fatigue diaphragm assembly for a diaphragm pump according to claim 2, characterized in that: The support sleeve (5) is fixedly connected to a guide tube (8), the buffer plate (6) is fixedly connected to a guide rod (9), and the guide rod (9) is slidably connected in the guide tube (8).

4. The anti-fatigue diaphragm assembly for a diaphragm pump according to claim 1, characterized in that: A support rod (51) is fixedly connected to the support sleeve (5), one end of the support rod (51) is fixedly connected to a mounting plate (52), and mounting holes (53) are formed through the four corners of the mounting plate (52).

5. The anti-fatigue diaphragm assembly for a diaphragm pump according to claim 1, characterized in that: The fixing member comprises a bolt (4) and a fixing plate (41), wherein the fixing plate (41) is sleeved on the bolt (4), and one end of the bolt (4) passes through the diaphragm body (3) and is threadedly connected to the assembly tube (1).

6. The anti-fatigue diaphragm assembly for a diaphragm pump according to claim 1, characterized in that: The material of the diaphragm ring (2) and the diaphragm body (3) is EPDM rubber, and the thickness of the diaphragm ring (2) and the diaphragm body (3) is 2.0 mm to 3.0 mm.

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