Diaphragm assembly suitable for booster pump
By setting through holes, pressure grooves, a first outer shell, and a second outer shell on the outside of the booster pump diaphragm, and using insert rods and pressure strips for clamping, the problem of low strength of the diaphragm material is solved, thereby improving the stability and strength of the diaphragm and extending its service life.
Patent Information
- Application Number
- CN202422867391.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-25
- Publication Date
- 2025-11-14
- Estimated Expiration
- 2034-11-25
AI Technical Summary
The diaphragms of existing booster pumps are easily damaged by the impact of the medium due to the low strength of the material, resulting in a short service life.
A diaphragm assembly was designed, which enhances the stability and strength of the diaphragm by setting through holes, grooves, a first outer shell and a second outer shell on the outside of the diaphragm sheet, and using insert rods and pressure strips for clamping, combined with a combination of stainless steel and rubber materials.
It improves the stability and strength of the diaphragm, extends its service life, prevents diaphragm slippage, reduces stress concentration, and extends its service life.
Smart Images

Figure CN223549396U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of diaphragm components for booster pumps, specifically a diaphragm component suitable for booster pumps. Background Technology
[0002] A booster pump, as the name suggests, is a pump used to increase pressure. It mainly relies on the back-and-forth movement of its internal diaphragm to change the volume of the working chamber to draw in and discharge liquid. Therefore, it can be said that the diaphragm is very important in a booster pump. However, most diaphragms are made of synthetic rubber. In actual use, when the medium impacts and agitates the diaphragm, stress concentration occurs in the middle of the diaphragm. Since rubber is not very strong, it is easily damaged, which greatly reduces the service life of the diaphragm. Utility Model Content
[0003] (a) Technical problems to be solved
[0004] To address the shortcomings of existing technologies, this invention provides a diaphragm assembly suitable for booster pumps, solving the problems mentioned in the background section.
[0005] (II) Technical Solution
[0006] To achieve the above objectives, this utility model provides the following technical solution: a diaphragm assembly suitable for a booster pump, comprising a diaphragm sheet, a through hole on the outer side of the diaphragm sheet, a pressure groove on the outer side of the upper surface of the diaphragm sheet, a first outer shell and a second outer shell on the outer side of the diaphragm sheet, the inner walls of the first outer shell and the second outer shell being in contact with the outer side of the diaphragm sheet, the lower surface of the first outer shell being in movable contact with the upper surface of the second outer shell, an insertion hole on the upper surface of the second outer shell, a insertion rod fixedly connected to the lower surface of the first outer shell, and a pressure strip fixedly connected to the inner wall of the top of the first outer shell, the pressure strip being in movable contact with the pressure groove.
[0007] Preferably, the number of pressure strips is set to six sets, and all six sets of pressure strips are made of rubber.
[0008] Preferably, the first outer shell, the second outer shell, and the insertion rod are all made of stainless steel.
[0009] Preferably, the number of the sockets is set to several groups, and the inner diameter of each group of sockets is adapted to the outer diameter of the plug rod.
[0010] Preferably, the number of the insertion rods is set to several groups, and the outer surface of each group of insertion rods is coated with an anti-slip layer.
[0011] (III) Beneficial Effects
[0012] Compared with the prior art, the present invention provides a diaphragm assembly suitable for booster pumps, which has the following advantages:
[0013] 1. This diaphragm assembly for booster pumps uses a plug inserted into the insertion hole to clamp the diaphragm between the first and second outer shells, indirectly improving the stability and strength of the diaphragm. Simultaneously, the arrangement of several through holes allows a small amount of water or gas to pass through, reducing the stress on the diaphragm during impact and agitation, thus indirectly increasing its strength during use. This makes it less prone to damage and significantly extends its service life.
[0014] 2. This diaphragm assembly for booster pumps, through the cooperation of several sets of pressure strips and grooves, can indirectly increase the friction between the first housing and the diaphragm, preventing the diaphragm from slipping out of the first and second housings, ensuring the stability of the diaphragm during use, and effectively preventing the diaphragm from falling off. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0016] Figure 2 This is a partial exploded view of the structure of this utility model;
[0017] Figure 3 This is a partial structural diagram of the present invention.
[0018] In the diagram: 1. Diaphragm; 2. Through hole; 3. Pressure groove; 4. First outer shell; 5. Second outer shell; 6. Insertion hole; 7. Insertion rod; 8. Pressure strip. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0020] Please see Figure 1-3This utility model provides a technical solution: a diaphragm assembly suitable for a booster pump, including a diaphragm sheet 1, a through hole 2 on the outer side of the diaphragm sheet 1, a pressure groove 3 on the outer side of the upper surface of the diaphragm sheet 1, a first outer shell 4 and a second outer shell 5 on the outer side of the diaphragm sheet 1, the inner walls of the first outer shell 4 and the second outer shell 5 are in contact with the outer side of the diaphragm sheet 1, the lower surface of the first outer shell 4 is in movable contact with the upper surface of the second outer shell 5, an insertion hole 6 is provided on the upper surface of the second outer shell 5, an insertion rod 7 is fixedly connected to the lower surface of the first outer shell 4, and a pressure strip 8 is fixedly connected to the inner wall of the top of the first outer shell 4, the pressure strip 8 being in movable contact with the pressure groove 3.
[0021] By inserting the insert rod 7 into the socket 6, the first outer shell 4 and the second outer shell 5 clamp the diaphragm 1, indirectly improving the stability and strength of the diaphragm 1. At the same time, due to the arrangement of several sets of through holes 2, a small amount of water or gas can pass through, which reduces the stress on the diaphragm 1 during the impact and agitation process, indirectly improving the strength of the diaphragm 1 during use. Therefore, it is not easily damaged and its service life is greatly extended.
[0022] The dimensions and shapes of all components in this structure are not specifically limited here and need to be produced according to the actual situation.
[0023] In order to ensure the stability of the diaphragm 1 inside the first outer shell 4 and the second outer shell 5, the present invention sets the number of pressure strips 8 to six sets. All six sets of pressure strips 8 are made of rubber. The pressure strips made of rubber can increase the friction and prevent the diaphragm 1 from slipping out of the first outer shell 4 and the second outer shell 5, thus ensuring the stability of the diaphragm 1 inside the first outer shell 4 and the second outer shell 5.
[0024] In order to extend the service life of the first outer shell 4, the second outer shell 5, and the insertion rod 7, this utility model uses stainless steel as the material for all three components. Stainless steel has high hardness and is not easily deformed, thus extending the service life of the first outer shell 4, the second outer shell 5, and the insertion rod 7.
[0025] In order to allow workers to insert the plug rod 7 into the socket 6, the present invention sets the number of sockets 6 to several groups, and the inner diameter of each group of sockets 6 is adapted to the outer diameter of the plug rod 7. Because the sizes are compatible, workers can insert the plug rod 7 into the socket 6.
[0026] In order to prevent the insertion rod 7 from easily slipping out of the socket 6, this utility model sets the number of insertion rods 7 to several groups. The outer surface of each group of insertion rods 7 is coated with an anti-slip layer. The anti-slip layer can increase the friction between the insertion rod 7 and the socket 6. Therefore, the operator has to use force to insert or pull the insertion rod 7 into or out of the socket 6, thus preventing the insertion rod 7 from easily slipping out of the socket 6.
[0027] All electrical components mentioned in this article are connected to an external main controller and 220V AC mains power, and the main controller can be a conventional known device such as a computer that can control it.
[0028] During use, the operator presses the first outer shell 4 and the second outer shell 5 onto the surface of the diaphragm 1, causing the first outer shell 4 to drive the insertion rod 7 into the interior of the insertion hole 6. Because the outer surface of the insertion rod 7 is provided with an anti-slip layer, it can prevent the insertion rod 7 from easily slipping out of the interior of the insertion hole 6. At the same time, the first outer shell 4 can drive the pressure strip 8 to press against the upper surface of the diaphragm 1, so that the upper surface of the diaphragm 1 is squeezed out to form the pressure groove 3, which can clamp and fix the diaphragm 1. It can also increase the friction between the first outer shell 4 and the diaphragm 1, preventing the diaphragm 1 from slipping out when it is used. At the same time, when the diaphragm 1 is used, the through hole 2 can prevent the diaphragm 1 from being subjected to excessive stress.
[0029] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A diaphragm assembly suitable for a booster pump, comprising a diaphragm sheet (1), characterized in that: The outer side of the diaphragm (1) is provided with a through hole (2), and the outer side of the upper surface of the diaphragm (1) is provided with a pressure groove (3). The outer side of the diaphragm (1) is provided with a first outer shell (4) and a second outer shell (5). The inner walls of the first outer shell (4) and the second outer shell (5) are in contact with the outer side of the diaphragm (1). The lower surface of the first outer shell (4) is in contact with the upper surface of the second outer shell (5). The upper surface of the second outer shell (5) is provided with an insertion hole (6). The lower surface of the first outer shell (4) is fixedly connected with an insertion rod (7). The inner wall of the top of the first outer shell (4) is fixedly connected with a pressure strip (8). The pressure strip (8) is in contact with the pressure groove (3).
2. A diaphragm assembly suitable for a booster pump according to claim 1, characterized in that: The number of pressure strips (8) is set to six sets, and the material of all six sets of pressure strips (8) is rubber.
3. A diaphragm assembly suitable for a booster pump according to claim 1, characterized in that: The first outer shell (4), the second outer shell (5), and the insert (7) are all made of stainless steel.
4. A diaphragm assembly suitable for a booster pump according to claim 1, characterized in that: The number of the sockets (6) is set to several groups, and the inner diameter of each group of sockets (6) is adapted to the outer diameter of the plug rod (7).
5. A diaphragm assembly suitable for a booster pump according to claim 1, characterized in that: The number of the inserts (7) is set to several groups, and the outer surface of each group of inserts (7) is coated with an anti-slip layer.