Anti-fatigue rubber diaphragm of diaphragm pump

Abstract

The utility model relates to the field of rubber diaphragms, and discloses an anti-fatigue rubber diaphragm of a diaphragm pump, which comprises a diaphragm pump diaphragm main body, a diaphragm connecting piece is integrally formed on the diaphragm pump diaphragm main body, and a buckle mechanism is arranged on the diaphragm connecting piece; the buckle mechanism comprises a first fastener, a second fastener, a sealing air bag, an inflation pipe, a piston rod, a fixing block, a connecting block, a side plate, a vertical moving plate, an extrusion rod and a rotating shaft. The bottom of the first fastener is fixedly connected with the second fastener, the first fastener, the second fastener and the fixing block are all clamped with the diaphragm connecting piece, the sealing air bag is fixedly installed on the second fastener, the inflation pipe is fixedly connected with the sealing air bag, the piston rod is installed on the inflation pipe in a sliding mode, and the piston rod is connected with the diaphragm connecting piece. The piston rod, the fixing block and the side plate are fixedly connected with the connecting block. The diaphragm pump has the following advantages and effects that the diaphragm main body of the diaphragm pump can be conveniently and quickly replaced, and the operation is relatively convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of rubber diaphragms, and particularly relates to a fatigue-resistant rubber diaphragm for a diaphragm pump. Background Art

[0002] A diaphragm pump separates the liquid to be transported from the piston rod and the pump cylinder by means of a diaphragm, thereby protecting the piston rod and the pump cylinder. The parts on the left side of the diaphragm in contact with the liquid are all made of corrosion-resistant materials or coated with a layer of corrosion-resistant substances; the right side of the diaphragm is filled with water or water.

[0003] In the prior art, the publication number CN218235414U discloses a diaphragm structure, including a diaphragm. The diaphragm includes a diaphragm body and a diaphragm connecting piece, and the diaphragm body and the diaphragm connecting piece are integrally connected. It also includes an inlay and a fastener. The inlay is arranged inside the diaphragm, and the fastener is connected to the inlay.

[0004] This patent solves the problem that the diaphragm deforms and falls off when the diaphragm of a traditional diaphragm pump moves. Since the fastener is clamped inside the diaphragm through the inlay, the fastening property inside the diaphragm is relatively high, thus achieving the purpose of preventing the diaphragm from falling off. However, when disassembling, there will be a situation where the high fastening property between the fastener and the diaphragm makes it inconvenient to disassemble and replace the diaphragm. Therefore, it is necessary to design a fatigue-resistant rubber diaphragm for a diaphragm pump to solve the above problems.

[0005] The information disclosed in this background art section is only intended to increase the understanding of the overall background of the present utility model, and should not be regarded as an admission or any form of implication that this information constitutes prior art already known to those of ordinary skill in the art. Summary of the Utility Model

[0006] The purpose of the present utility model is to provide a fatigue-resistant rubber diaphragm for a diaphragm pump to solve the above problems.

[0007] The above technical purpose of the present utility model is achieved through the following technical solutions: A fatigue-resistant rubber diaphragm for a diaphragm pump, including:

[0008] A diaphragm pump diaphragm main body, on which a diaphragm connecting piece is integrally formed, and a buckle mechanism is arranged on the diaphragm connecting piece;

[0009] The buckle mechanism includes a fastener one, a fastener two, a sealed airbag, an air charging pipe, a piston rod, a fixed block, a connecting block, a side plate, a vertical moving plate, a pressing rod and a rotating shaft;

[0010] One bottom of the fastener is fixedly connected to the second fastener. The first fastener, the second fastener, and the fixing block are all clamped with the diaphragm connecting piece. The sealing airbag is fixedly installed on the second fastener. The charging pipe is fixedly connected to the sealing airbag. The piston rod is slidably installed on the charging pipe. The piston rod, the fixing block, and the side plate are all fixedly connected to the connecting block. An arc-shaped groove is formed on the side plate. The extrusion rod is in contact with the inner wall of the arc-shaped groove. The vertical moving plate is fixedly connected to the extrusion rod. The rotating shaft is rotatably installed on the second fastener. The rotating shaft is threadedly connected to the vertical moving plate.

[0011] A further setting of the present utility model is that: a fastening groove is formed at the bottom of the diaphragm connecting piece. The first fastener and the second fastener are clamped with the fastening groove. The sealing airbag is in sealing contact with the fastening groove.

[0012] A further setting of the present utility model is that: fixing grooves are formed on the side wall of the fastening groove. The fixing block is clamped with the fixing grooves.

[0013] By adopting the above technical solution, the second fastener and the first fastener are limited.

[0014] A further setting of the present utility model is that: the charging pipe is fixedly installed on the second fastener. The fixing block is slidably installed horizontally on the second fastener.

[0015] A further setting of the present utility model is that: two guiding blocks are fixedly arranged inside the second fastener. The vertical moving plate is slidably sleeved outside the guiding blocks.

[0016] By adopting the above technical solution, it is convenient for the vertical moving plate to move stably in the vertical direction.

[0017] A further setting of the present utility model is that: external threads are formed on the outer side of the rotating shaft. A threaded hole is formed at the top of the vertical moving plate. The external threads are threadedly connected to the threaded hole.

[0018] By adopting the above technical solution, when the rotating shaft rotates, the vertical moving plate can move in the vertical direction.

[0019] A further setting of the present utility model is that: a sealing gasket is arranged inside the second fastener. The rotating shaft is in sealing contact with the sealing gasket.

[0020] A further setting of the present utility model is that: the diaphragm main body of the diaphragm pump is made of a blend of nitrile rubber material and plastic.

[0021] The beneficial effects of the present utility model are:

[0022] 1. Through the buckle mechanism provided in the present utility model, only by rotating the rotating shaft, the extrusion rod can be moved upward to drive the side plate to move horizontally, so that the fixing block can be moved out of the fixing groove, and the piston rod moves to pump air out of the sealing airbag, causing the sealing airbag to contract. Then, by pulling the rotating shaft, the buckle mechanism can be removed, which is convenient and fast for replacing the diaphragm main body of the diaphragm pump and is relatively easy to operate.

[0023] 2. Through the buckle mechanism provided in the present utility model, the fastener one and the fastener two are clamped into the fastening groove, and then the rotating shaft is rotated to make the fixing block snap into the fixing groove, and the sealing airbag can be inflated to ensure the sealing between the fastener two and the diaphragm connecting piece. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0025] Figure 1 is a schematic structural diagram of a fatigue-resistant rubber diaphragm of a diaphragm pump proposed by the present utility model.

[0026] Figure 2 is a schematic cross-sectional structural diagram of a fatigue-resistant rubber diaphragm of a diaphragm pump proposed by the present utility model.

[0027] Figure 3 is Figure 2 a partial structural diagram of A in

[0028] Figure 4 is Figure 2 a partial structural diagram of B in

[0029] In the figure, 1. Diaphragm pump diaphragm main body; 2. Diaphragm connecting piece; 3. Fastening groove; 4. Fastener one; 5. Fastener two; 6. Sealing airbag; 7. Inflatable tube; 8. Piston rod; 9. Fixing block; 10. Connecting block; 11. Side plate; 12. Arc-shaped groove; 13. Vertically moving plate; 14. Extrusion rod; 15. Rotating shaft; 16. Fixing groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0030] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0031] The technical solution of the present utility model will be clearly and completely described below in conjunction with specific embodiments. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0032] See Figure 1 、 Figure 2 、 Figure 3 and Figure 4 , the present utility model provides a fatigue-resistant rubber diaphragm for a diaphragm pump, including:

[0033] The diaphragm pump diaphragm main body 1, on which a diaphragm connecting member 2 is integrally formed. A snap mechanism is provided on the diaphragm connecting member 2. It should be noted that the snap mechanism facilitates the disassembly and replacement of the diaphragm pump diaphragm main body 1.

[0034] The snap mechanism includes a fastener one 4, a fastener two 5, a sealing airbag 6, an air charging pipe 7, a piston rod 8, a fixed block 9, a connecting block 10, a side plate 11, a vertically moving plate 13, a pressing rod 14, and a rotating shaft 15;

[0035] The bottom of the fastener one 4 is fixedly connected to the fastener two 5. The fastener one 4, the fastener two 5, and the fixed block 9 are all clamped with the diaphragm connecting member 2. The sealing airbag 6 is fixedly installed on the fastener two 5. The air charging pipe 7 is fixedly connected to the sealing airbag 6. The piston rod 8 is slidably installed in the air charging pipe 7. The piston rod 8, the fixed block 9, and the side plate 11 are all fixedly connected to the connecting block 10. An arc-shaped groove 12 is formed on the side plate 11. The pressing rod 14 is in contact with the inner wall of the arc-shaped groove 12. The vertically moving plate 13 is fixedly connected to the pressing rod 14. The rotating shaft 15 is rotatably installed on the fastener two 5. The rotating shaft 15 is threadedly connected to the vertically moving plate 13.

[0036] Through the above snap mechanism, when it is necessary to replace the diaphragm main body 1 of the diaphragm pump, rotate the rotating shaft 15 to move the vertical moving plate 13 upward. The extrusion rod 14 moves in the arc-shaped groove 12, driving the side plate 11 to move horizontally. The side plate 11 drives the connecting block 10 to move, and the connecting block 10 drives the fixing block 9 and the piston rod 8 to move, so that the fixing block 9 moves out of the fixing groove 16. The piston rod 8 can pump out the air in the sealing airbag 6, causing the sealing airbag 6 to contract. Then, by pulling the rotating shaft 15, the second fastener 5 and the first fastener 4 can be quickly removed, thus facilitating the quick replacement of the diaphragm main body 1 of the diaphragm pump, and the operation is relatively convenient.

[0037] Specifically, a fastening groove 3 is formed at the bottom of the diaphragm connecting member 2. The first fastener 4 and the second fastener 5 are clamped with the fastening groove 3. The sealing airbag 6 is in sealing contact with the fastening groove 3. A fixing groove 16 is formed on the side wall of the fastening groove 3. The fixing block 9 is clamped with the fixing groove 16. It should be noted that the sealing performance between the second fastener 5 and the fastening groove 3 can be ensured.

[0038] Specifically, the air charging pipe 7 is fixedly installed on the second fastener 5. The fixing block 9 is slidably installed horizontally on the second fastener 5. It should be noted that it is convenient for the fixing block 9 to move horizontally.

[0039] Specifically, two guiding blocks are fixedly arranged in the second fastener 5. The vertical moving plate 13 is slidably sleeved outside the guiding blocks. External threads are formed on the outer side of the rotating shaft 15, and threaded holes are formed at the top of the vertical moving plate 13. The external threads are threadedly connected with the threaded holes. A sealing gasket is arranged in the second fastener 5. The rotating shaft 15 is in sealing contact with the sealing gasket. It should be noted that, as Figure 4 shown, the sealing gasket is located between the rotating shaft 15 and the second fastener 5 to ensure the connection sealing performance.

[0040] Specifically, the diaphragm main body 1 of the diaphragm pump is made of a blend of nitrile rubber material and plastic. It should be noted that the blend of nitrile rubber material and plastic is a blend with rubber as the matrix and plastic as the dispersed phase, generally called reinforced rubber. Adding plastic to rubber can increase the elastic modulus of the blend; the dispersed plastic particles can play roles such as wear resistance, tear resistance, fatigue resistance, anti-crack growth, anti-flexure cracking, and anti-tensile fracture.

[0041] Working principle:

[0042] S1: When it is necessary to replace the diaphragm body 1 of the diaphragm pump, rotate the rotating shaft 15 to move the vertical moving plate 13 upward. The vertical moving plate 13 drives the extrusion rod 14 to move. The extrusion rod 14 moves in the arc-shaped groove 12, driving the side plate 11 to move horizontally. The side plate 11 drives the connecting block 10 to move, and the connecting block 10 drives the fixing block 9 and the piston rod 8 to move, so that the fixing block 9 moves out of the fixing groove 16. The piston rod 8 can extract the air in the sealing airbag 6, causing the sealing airbag 6 to contract. Then, by pulling the rotating shaft 15, the second fastener 5 and the first fastener 4 can be quickly removed, thus facilitating the quick replacement of the diaphragm body 1 of the diaphragm pump and making the operation relatively convenient;

[0043] S2: When replacing with a new diaphragm body 1 of the diaphragm pump, snap the second fastener 5 and the first fastener 4 into the fastening groove 3, and rotate the rotating shaft 15 to drive the connecting block 10 to drive the fixing block 9 and the piston rod 8 to move horizontally, so that the fixing block 9 snaps into the fixing groove 16. When the piston rod 8 moves, it can inflate the sealing airbag 6, causing the sealing airbag 6 to expand, which can ensure the sealing between the second fastener 5 and the fastening groove 3 and facilitate quick replacement.

[0044] The above has introduced in detail a fatigue-resistant rubber diaphragm of a diaphragm pump provided by the present utility model. Specific embodiments are used herein to elaborate on the principle and implementation manner of the present utility model. The description of the above embodiments is only used to help understand the method and its core idea of the present utility model. It should be noted that for those of ordinary skill in the art of this technology, without departing from the principle of the present utility model, several improvements and modifications can still be made to the present utility model, and these improvements and modifications also fall within the protection scope of the claims of the present utility model.

Claims

1. A fatigue-resistant rubber diaphragm for a diaphragm pump, characterized in that: include: A diaphragm pump diaphragm body (1), wherein a diaphragm connector (2) is integrally formed on the diaphragm pump diaphragm body (1), and a snap mechanism is provided on the diaphragm connector (2); The buckle mechanism comprises a first fastener (4), a second fastener (5), a sealing airbag (6), an inflation tube (7), a piston rod (8), a fixing block (9), a connecting block (10), a side plate (11), a vertical displacement plate (13), an extrusion rod (14) and a rotating shaft (15); The bottom of the fastener 1 (4) is fixedly connected to the fastener 2 (5); the fastener 1 (4), the fastener 2 (5) and the fixing block (9) are all clamped with the diaphragm connector (2); the sealing airbag (6) is fixedly mounted on the fastener 2 (5); the inflation tube (7) is fixedly connected to the sealing airbag (6); the piston rod (8) is slidably mounted on the inflation tube (7); the piston rod (8), the fixing block (9) and the side plate (11) are all fixedly connected to the connecting block (10); an arc groove (12) is provided on the side plate (11); the extrusion rod (14) is in contact with the inner wall of the arc groove (12); the vertical displacement plate (13) is fixedly connected to the extrusion rod (14); the rotating shaft (15) is rotatably mounted on the fastener 2 (5); and the rotating shaft (15) is threadedly connected to the vertical displacement plate (13).

2. The fatigue-resistant rubber diaphragm of a diaphragm pump according to claim 1, characterized in that: The bottom of the diaphragm connector (2) is provided with a fastening groove (3), a fastener 1 (4) and a fastener 2 (5) are clamped in the fastening groove (3), and a sealing airbag (6) is in sealing contact with the fastening groove (3).

3. The fatigue-resistant rubber diaphragm of a diaphragm pump according to claim 2, characterized in that: A fixing groove (16) is provided on the side wall of the fastening groove (3), and the fixing block (9) is clamped in the fixing groove (16).

4. The fatigue-resistant rubber diaphragm of a diaphragm pump according to claim 1, characterized in that: The inflation tube (7) is fixedly mounted on the second fastener (5), and the fixing block (9) is laterally slidably mounted on the second fastener (5).

5. The fatigue-resistant rubber diaphragm of a diaphragm pump according to claim 1, characterized in that: Two guide blocks are fixedly arranged inside the second fastener (5), and the vertical moving plate (13) is slidably sleeved on the outer sides of the guide blocks.

6. The fatigue-resistant rubber diaphragm of a diaphragm pump according to claim 1, characterized in that: The outer side of the rotating shaft (15) is provided with an external thread, the top of the vertical moving plate (13) is provided with a screw hole, and the external thread is threadedly connected with the screw hole.

7. The fatigue-resistant rubber diaphragm of a diaphragm pump according to claim 1, characterized in that: A sealing gasket is arranged inside the second fastener (5), and the rotating shaft (15) is in sealing contact with the sealing gasket.

8. The fatigue-resistant rubber diaphragm of a diaphragm pump according to claim 1, characterized in that: The diaphragm pump diaphragm body (1) is made of a blend of nitrile rubber material and plastic.

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