A double-layer diaphragm sheet for pharmaceutical use

Abstract

The utility model discloses a double -layer septum for pharmacy, including septum gasket and septum piece body that is located on septum gasket, septum piece body inside is provided with the connecting piece that is connected with septum gasket, and the connecting piece sets up septum gasket, the one side away from septum gasket on septum piece body is provided with sealing rib, and the sealing rib is convex and is formed with recess on the one side of septum piece body close to septum gasket, and the position of recess on septum gasket is provided with the matched convex rib, and the matched convex rib is located in recess and is sealed with recess, and the one side away from septum piece body on septum gasket is provided with the support rib corresponding with matched convex rib, and the exhaust hole is provided on at least one side of septum gasket in support rib. The utility model discloses reasonable structure design can realize septum piece body and septum gasket better pasting function, and make sealing rib have better support, and it is difficult to deform, better guarantee sealing effect.

Description

Technical Field

[0001] This utility model relates to the field of valve technology, and more specifically, to a double-layer diaphragm sheet for pharmaceutical use. Background Technology

[0002] Diaphragm valves differ significantly in structure from ordinary valves. They are a new type of valve, a special type of shut-off valve. Their opening and closing element is a diaphragm made of a soft material, separating the valve body cavity from the valve cover cavity and the drive components. They are now widely used in various fields. Commonly used diaphragm valves include rubber-lined diaphragm valves, fluoropolymer-lined diaphragm valves, unlined diaphragm valves, and plastic diaphragm valves.

[0003] Existing single-layer diaphragm sheets suffer from problems such as easy tearing, deformation, and low strength after prolonged use, while double-layer diaphragm sheets are prone to interlayer separation. This is especially critical when diaphragm sheets are applied in the biopharmaceutical field. Therefore, structural improvements are needed to enhance the sealing performance of double-layer diaphragm sheets. Utility Model Content

[0004] This utility model overcomes the shortcomings of the prior art and provides a double-layer diaphragm sheet for pharmaceutical use. Its structure is reasonably designed. By setting sealing ribs and grooves on the diaphragm sheet body and setting matching ribs and supporting ribs on the diaphragm gasket, the diaphragm sheet body and the diaphragm gasket can achieve better fit, and the sealing ribs can have better support, are not easily deformed, and better ensure the sealing effect.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A pharmaceutical double-layer diaphragm sheet includes a diaphragm gasket and a diaphragm sheet body disposed on the diaphragm gasket. The diaphragm sheet body has a connector that connects to the diaphragm gasket, and the connector extends out of the diaphragm gasket. A sealing rib is provided on the side of the diaphragm sheet body away from the diaphragm gasket. The sealing rib protrudes from the diaphragm sheet body and forms a groove on the side of the diaphragm sheet body near the diaphragm gasket. A mating rib is provided on the diaphragm gasket at a position corresponding to the groove. The mating rib is located in the groove and seals with the groove. A support rib is provided on the side of the diaphragm gasket away from the diaphragm sheet body, corresponding to the mating rib.

[0007] By adopting the above technical solution, and by setting sealing ribs and grooves on the diaphragm sheet, and setting matching ribs and support ribs on the diaphragm gasket, the sealing ribs are specifically arc-shaped. This can improve the mechanical strength of the diaphragm sheet and prevent tearing and deformation. In this way, the diaphragm sheet can be better sealed and fitted to the valve body. In particular, the matching ribs and grooves can make the diaphragm sheet and the diaphragm gasket fit better, preventing delamination, and can provide support force to the sealing ribs towards the diaphragm sheet. This avoids the sealing ribs from being squeezed and deformed due to the uneven thickness of the diaphragm sheet, thus ensuring better sealing performance.

[0008] Preferably, the diaphragm gasket has an exhaust hole on at least one side of the support rib.

[0009] By adopting the above technical solution, the vent hole can be used to discharge gas between the diaphragm sheet and the diaphragm gasket, increase the fit between the two, further prevent separation, and enable timely detection and repair / replacement when the diaphragm sheet is ruptured.

[0010] Preferably, an annular protrusion is provided on the side of the diaphragm sheet near the diaphragm gasket, and an annular groove is provided on the diaphragm gasket at the position corresponding to the annular protrusion; an annular ridge is provided on one side of the diaphragm gasket located in the annular groove, and a recessed annular groove is provided on one side of the diaphragm sheet located in the annular protrusion, with the annular ridge and the recessed annular groove being provided correspondingly.

[0011] By adopting the above technical solution, the diaphragm sheet and the diaphragm gasket are made to fit tightly together in two opposite directions.

[0012] Preferably, the diaphragm sheet is disposed coveringly on the diaphragm gasket, with the edge of the diaphragm sheet extending beyond the diaphragm gasket.

[0013] By adopting the above technical solution, the edge of the diaphragm gasket can be pressed tightly when the diaphragm is installed in the diaphragm valve to prevent deformation of the diaphragm gasket.

[0014] Preferably, a forming protrusion is provided on the side of the diaphragm sheet near the diaphragm gasket, and the connector is fixedly disposed in the forming protrusion. The diaphragm gasket is provided with a receiving groove corresponding to the position of the forming protrusion, the forming protrusion is located in the receiving groove, and a protruding post is formed on the side of the receiving groove away from the diaphragm sheet. The connector extends out of the protruding post, and the support rib is fixed or integrally disposed on both sides of the protruding post.

[0015] By adopting the above technical solution, this configuration facilitates the installation and extension of the connectors and further increases the support strength of the diaphragm sheet and diaphragm gasket.

[0016] Preferably, four vents are provided, with two vents arranged in groups on both sides of the support rib.

[0017] By adopting the above technical solution, this setup can further enhance exhaust performance and detect leaks more promptly.

[0018] Preferably, both the diaphragm body and the diaphragm gasket are provided with corresponding mounting holes, which are located at the four corners of the diaphragm body and the diaphragm gasket.

[0019] By adopting the above technical solution, the mounting hole can be used to install the diaphragm sheet on the diaphragm valve.

[0020] The beneficial effects of this utility model are:

[0021] This utility model has a reasonable structural design. By setting sealing ribs and grooves on the diaphragm sheet and matching ribs and supporting ribs on the diaphragm gasket, the diaphragm sheet and diaphragm gasket can achieve better fit between the diaphragm sheet and the diaphragm gasket, and the sealing ribs can have better support, are less prone to deformation, and better ensure the sealing effect. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of a specific embodiment of the present utility model. Figure 1 ;

[0023] Figure 2 This is a schematic diagram of the structure of a specific embodiment of the present utility model. Figure 2 ;

[0024] Figure 3 This is a schematic diagram of the exploded structure of a specific embodiment of the present utility model. Figure 1 ;

[0025] Figure 4 This is a schematic diagram of the exploded structure of a specific embodiment of the present utility model. Figure 2 ;

[0026] Figure 5 This is a cross-sectional view of a specific embodiment of the present invention, showing the connecting member located inside the diaphragm sheet.

[0027] In the diagram: 1. Diaphragm gasket; 11. Matching rib; 12. Supporting rib; 13. Annular groove; 14. Annular protrusion; 15. Receiving groove; 16. Protruding column; 2. Diaphragm body; 21. Sealing rib; 22. Groove; 23. Annular protrusion; 24. Recessed annular groove; 25. Molded protrusion; 3. Connector; 4. Vent hole; 5. Mounting hole. Detailed Implementation

[0028] 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.

[0029] like Figure 1-5 As shown, a pharmaceutical double-layer diaphragm sheet includes a diaphragm gasket 1 and a diaphragm sheet body 2 disposed on the diaphragm gasket 1. A connector 3 connected to the diaphragm gasket 1 is disposed inside the diaphragm sheet body 2. The connector 3 extends out of the diaphragm gasket 1. A sealing rib 21 is disposed on the side of the diaphragm sheet body 2 away from the diaphragm gasket 1. The sealing rib 21 protrudes from the diaphragm sheet body 2 and forms a groove 22 on the side of the diaphragm sheet body 2 near the diaphragm gasket 1. A mating rib 11 is disposed on the diaphragm gasket 1 at the position corresponding to the groove 22. The mating rib 11 is located in the groove 22 and seals with the groove 22. A support rib 12 corresponding to the mating rib 11 is disposed on the side of the diaphragm gasket 1 away from the diaphragm sheet body 2.

[0030] This configuration, with sealing ribs 21 and grooves 22 on the diaphragm body 2, and mating ribs 11 and support ribs 12 on the diaphragm gasket 1, where the sealing ribs 21 are specifically arc-shaped, improves the mechanical strength of the diaphragm, preventing tearing and deformation. This allows the diaphragm to better seal and fit the valve body. The mating of the ribs 11 and grooves 22 ensures a better fit between the diaphragm body 2 and the diaphragm gasket 1, preventing delamination. It also provides support for the sealing ribs 21, preventing deformation due to uneven thickness of the diaphragm body 2, thus ensuring better sealing performance. The diaphragm body 2 can be made of PTFE material, while the diaphragm gasket 1 can be made of EPDM material.

[0031] To achieve better fit, venting, and early warning functions, four vent holes 4 are provided, with two vent holes 4 arranged in pairs on both sides of the support rib 12. This arrangement allows the vent holes 4 to release gas between the diaphragm sheet 2 and the diaphragm gasket 1, increasing the fit between the two and further preventing separation. In addition, when the diaphragm sheet 2 is broken, it can be detected in time and repaired or replaced.

[0032] To ensure a better seal between the diaphragm body 2 and the diaphragm gasket 1 and prevent delamination, an annular protrusion 23 is provided on the side of the diaphragm body 2 near the diaphragm gasket 1, and an annular groove 13 is provided on the diaphragm gasket 1 corresponding to the position of the annular protrusion 23. An annular ridge 14 is provided on one side of the annular groove 13 on the diaphragm gasket 1, and a recessed annular groove 24 is provided on one side of the annular protrusion 23 on the diaphragm body 2. The annular ridge 14 and the recessed annular groove 24 are provided correspondingly. This arrangement ensures that the diaphragm body 2 and the diaphragm gasket 1 are tightly fitted in two opposite directions.

[0033] By covering the diaphragm sheet 2 on the diaphragm gasket 1, with the edge of the diaphragm sheet 2 extending out of the diaphragm gasket 1, the edge of the diaphragm gasket 1 can be pressed when the diaphragm sheet is installed in the diaphragm valve, thus preventing the diaphragm gasket 1 from deforming.

[0034] Furthermore, a forming protrusion 25 is provided on the side of the diaphragm sheet 2 near the diaphragm gasket 1, and the connector 3 is fixedly disposed in the forming protrusion 25. The diaphragm gasket 1 is provided with a receiving groove 15 corresponding to the position of the forming protrusion 25. The forming protrusion 25 is located in the receiving groove 15. A protruding post 16 is formed on the side of the receiving groove 15 away from the diaphragm sheet 2. The connector 3 is provided extending out of the protruding post 16. The support rib 12 is fixed or integrally disposed on both sides of the protruding post 16. This arrangement facilitates the setting and extension of the connector 3 and can further increase the support strength of the diaphragm sheet 2 and the diaphragm gasket 1.

[0035] The diaphragm body 2 and the diaphragm gasket 1 are each provided with corresponding mounting holes 5. The mounting holes 5 are located at the four corners of the diaphragm body 2 and the diaphragm gasket 1. The mounting holes 5 are provided so that the diaphragm can be installed on the diaphragm valve.

[0036] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A pharmaceutical double-layer diaphragm sheet, comprising a diaphragm gasket (1) and a diaphragm sheet body (2) disposed on the diaphragm gasket (1), wherein a connector (3) for connecting to the diaphragm gasket (1) is disposed inside the diaphragm sheet body (2), the connector (3) extending out of the diaphragm gasket (1), and a sealing rib (21) is disposed on the side of the diaphragm sheet body (2) away from the diaphragm gasket (1), characterized in that, A sealing rib (21) protrudes from the diaphragm sheet (2) and forms a groove (22) on the side of the diaphragm sheet (2) near the diaphragm gasket (1). A matching rib (11) is provided on the diaphragm gasket (1) at the position corresponding to the groove (22). The matching rib (11) is located in the groove (22) and seals with the groove (22). A support rib (12) corresponding to the matching rib (11) is provided on the side of the diaphragm gasket (1) away from the diaphragm sheet (2).

2. The pharmaceutical double-layer diaphragm sheet according to claim 1, characterized in that, The diaphragm gasket (1) has an exhaust hole (4) on at least one side of the support rib (12).

3. A pharmaceutical double-layer diaphragm sheet according to claim 1 or 2, characterized in that, An annular protrusion (23) is provided on the side of the diaphragm sheet (2) near the diaphragm gasket (1), and an annular groove (13) is provided on the diaphragm gasket (1) at the position corresponding to the annular protrusion (23).

4. A pharmaceutical double-layer diaphragm sheet according to claim 3, characterized in that, The diaphragm gasket (1) is provided with an annular protrusion (14) on one side of the annular groove (13), and the diaphragm body (2) is provided with a recessed annular groove (24) on one side of the annular protrusion (23). The annular protrusion (14) and the recessed annular groove (24) are provided correspondingly.

5. A pharmaceutical double-layer diaphragm sheet according to claim 4, characterized in that, The diaphragm sheet (2) is disposed on the diaphragm gasket (1), with the edge of the diaphragm sheet (2) extending out of the diaphragm gasket (1).

6. A pharmaceutical double-layer diaphragm sheet according to claim 5, characterized in that, A forming protrusion (25) is provided on the side of the diaphragm sheet (2) near the diaphragm gasket (1). A connector (3) is fixedly disposed in the forming protrusion (25). A receiving groove (15) is provided on the diaphragm gasket (1) corresponding to the position of the forming protrusion (25). The forming protrusion (25) is located in the receiving groove (15). A protrusion (16) is formed on the side of the receiving groove (15) away from the diaphragm sheet (2) from the diaphragm gasket (1). The connector (3) extends out of the protrusion (16). A support rib (12) is fixed or integrally disposed on both sides of the protrusion (16).

7. A pharmaceutical double-layer diaphragm sheet according to claim 2, characterized in that, There are four vent holes (4), and the vent holes (4) are arranged in pairs on both sides of the support rib (12).

8. A pharmaceutical double-layer diaphragm sheet according to claim 7, characterized in that, Both the diaphragm body (2) and the diaphragm gasket (1) are provided with corresponding mounting holes (5), which are located at the four corners of the diaphragm body (2) and the diaphragm gasket (1).

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