Foaming point tester filter membrane fixing device

Abstract

The utility model relates to the technical field of filter membrane fixing devices, in particular to a filter membrane fixing device for a bubbling point tester, which improves the installation firmness of a fixing ring, improves the positioning stability of a filter membrane and improves the convenience of assembly and disassembly operation. Comprising a tank body and a supporting ring, an opening is formed in the top end of the tank body, and the supporting ring is installed on the inner side wall of the tank body; the fixing ring is arranged in the tank body, the bottom end of the fixing ring is in contact with the top end of the supporting ring, the supporting net is installed on the inner side wall of the fixing ring, the filter membrane is embedded in the fixing ring, the bottom end of the filter membrane is in contact with the top end of the supporting net, and the positioning device is arranged at an opening in the top end of the tank body; the positioning device is used for sealing the opening of the tank body and pressing and limiting the filter membrane.

Description

Technical Field

[0001] This utility model relates to the technical field of filter membrane fixing devices, and in particular to a filter membrane fixing device for a bubble point tester. Background Technology

[0002] A bubble point tester is a specially designed device used to measure the pressure required for gas to pass through a filter membrane in order to determine the bubble point of the filter membrane and thus evaluate its overall performance.

[0003] Currently, among existing filter membrane fixing devices, such as the patent with authorization announcement number CN210690347U, this utility model relates to the field of mechanical technology. The filter membrane fixing mechanism of a cylinder-type bubble point tester includes a support cylinder for supporting the filter membrane and having an open upper end. A sealing ring is installed on the upper end face of the support cylinder, and an air inlet for connecting a venting pipe is opened on the side wall of the support cylinder. It also includes a cylinder, with the piston rod of the cylinder connected to the support cylinder; and a pressure cap installed above the support cylinder. The pressure cap includes a horizontally arranged upper support plate, with an upwardly extending annular protrusion in the center of the upper support plate. The upper support plate and the annular protrusion form an upwardly opening groove, and a vent hole is opened on the inner side of the annular protrusion on the upper support plate.

[0004] However, the organization found that the structure had poor stability in fixing the filter membrane and was not convenient for replacing or disassembling the filter membrane, which reduced the ease of use. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a filter membrane fixing device for a bubble point tester that improves the installation firmness of the fixing ring, enhances the positioning stability of the filter membrane, and improves the convenience of loading and unloading operations.

[0006] This utility model discloses a filter membrane fixing device for a bubble point tester, comprising a tank and a support ring. The tank has an opening at its top, and the support ring is mounted on the inner wall of the tank. It also includes a positioning device, a fixing ring, a support mesh, and a filter membrane. The fixing ring is disposed inside the tank, with its bottom end contacting the top end of the support ring. The support mesh is mounted on the inner wall of the fixing ring, and the filter membrane is embedded inside the fixing ring, with its bottom end contacting the top end of the support mesh. The positioning device is located at the opening at the top of the tank, used to close the tank opening and to press and limit the position of the filter membrane. The membrane is embedded inside the fixing ring, and the lower part of the filter membrane is supported by the support net. Then, the fixing ring is slidably installed inside the tank so that the bottom end of the fixing ring contacts the top end of the support ring. Next, the positioning device is installed at the opening of the tank, so that the positioning device closes the opening of the tank and presses the fixing ring and the filter membrane downward, thereby improving the installation firmness of the fixing ring and the positioning stability of the filter membrane. When the filter membrane needs to be replaced, the positioning device is removed, and the positioning device drives the fixing ring upward, thereby moving the filter membrane out of the tank, improving the convenience of operation.

[0007] Preferably, the positioning device includes a fixing device, a sealing cap, multiple sets of telescopic rods, multiple sets of springs, a positioning element, multiple sets of magnetic rods, and multiple sets of grooves. The sealing cap is installed at the top opening of the tank. The fixing device is located on the outer wall of the tank and is used to fix the sealing cap. The tops of the multiple sets of telescopic rods are all connected to the bottoms of the sealing cap. The multiple sets of springs are respectively fitted onto the outer walls of the multiple sets of telescopic rods. The top of the positioning element is connected to the bottoms of the multiple sets of telescopic rods. The multiple sets of magnetic rods are all installed at the bottom of the positioning element. The multiple sets of grooves are all located at the top of the fixing ring. When the sealing cap is installed... After the opening at the top of the tank, multiple sets of springs provide a downward pushing force to the positioning component, causing the positioning component to drive multiple sets of magnetic rods to press the fixing ring downward. At the same time, the lower parts of the multiple sets of magnetic rods extend into the multiple sets of grooves, thereby fixing the fixing ring and improving the installation stability of the filter membrane. When the sealing cover is removed and moved upward, the sealing cover drives the multiple sets of magnetic rods to move upward. The magnetic force between the multiple sets of magnetic rods and the multiple sets of grooves drives the fixing ring to move upward, thereby moving the fixing ring and the filter membrane out of the tank, improving the convenience of filter membrane replacement.

[0008] Preferably, the fixing device includes multiple sets of bases, multiple sets of connectors, multiple sets of screws, and multiple sets of pressing components. The multiple sets of bases are all installed on the outer wall of the tank body. The multiple sets of connectors are rotatably installed on the multiple sets of bases. The lower parts of the multiple sets of screws are screwed onto the multiple sets of connectors. The multiple sets of pressing components are respectively located at the top of the multiple sets of screws, and the outer wall of the sealing cap has multiple notches. When the sealing cap is installed at the top opening of the tank body, rotating the multiple sets of connectors upwards causes them to drive the multiple sets of screws into the notches of the sealing cap. Then, by rotating the multiple sets of pressing components to adjust the rotation of the multiple sets of screws, the multiple sets of screws drive the multiple sets of pressing components downwards, thereby pressing and fixing the sealing cap, improving the ease of installation and removal of the sealing cap.

[0009] Preferably, it also includes a fixing block and a handle, with the fixing block installed on the top of the sealing cover and the handle rotatably mounted on the fixing block; by providing a handle, the convenience of taking off and putting away the sealing cover is improved.

[0010] Preferably, it also includes a pressing element, which is disposed at the bottom of the positioning element; the pressing element presses and limits the filter membrane, thereby improving the positioning effect of the filter membrane.

[0011] Preferably, it also includes multiple sets of handles, which are respectively installed on the top of multiple sets of pressing parts; by setting multiple sets of handles, the convenience of rotating operation of multiple sets of pressing parts is improved.

[0012] Preferably, a torsion spring is provided at the rotatable connection between the handle and the fixing block; this improves the convenience of automatic rotation, folding, and storage of the handle.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: The filter membrane is embedded and installed inside the fixing ring, and the lower part of the filter membrane is supported by the support net. Then, the fixing ring is slidably installed inside the tank so that the bottom end of the fixing ring contacts the top end of the support ring. Then, the positioning device is installed at the opening of the tank so that the positioning device closes the opening of the tank. At the same time, the positioning device presses the fixing ring and the filter membrane downward, thereby improving the installation firmness of the fixing ring and the positioning stability of the filter membrane. When the filter membrane needs to be replaced, the positioning device is disassembled, and the positioning device drives the fixing ring to move upward, thereby moving the filter membrane out of the tank, improving the convenience of operation. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the isometric structure of this utility model;

[0015] Figure 2 This is a partial isometric structural diagram of the connection between the tank body and the support ring, etc.

[0016] Figure 3 This is a partial isometric structural diagram of the connection between the press-fit component and the handle, etc.

[0017] Figure 4 This is a partial isometric structural diagram of the connection between the sealing cover and the telescopic rod, etc.

[0018] Figure 5 This is a partial isometric structural diagram showing the connection between the fixed ring and the support net, etc.

[0019] The following are labels in the attached diagram: 1. Tank body; 2. Support ring; 3. Fixing ring; 4. Support mesh; 5. Filter membrane; 6. Sealing cap; 7. Telescopic rod; 8. Spring; 9. Positioning component; 10. Magnetic rod; 11. Groove; 12. Base; 13. Connector; 14. Screw; 15. Pressing component; 16. Fixing block; 17. Handle; 18. Pressing component; 19. Handle. Detailed Implementation

[0020] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete.

[0021] Example 1

[0022] like Figures 1 to 5 As shown, the present invention provides a filter membrane fixing device for a bubble point tester, comprising a tank 1 and a support ring 2. The top of the tank 1 is provided with an opening, and the support ring 2 is installed on the inner side wall of the tank 1. It also includes a positioning device, a fixing ring 3, a support net 4, and a filter membrane 5. The fixing ring 3 is disposed inside the tank 1, and the bottom end of the fixing ring 3 contacts the top end of the support ring 2. The support net 4 is installed on the inner side wall of the fixing ring 3. The filter membrane 5 is embedded inside the fixing ring 3, and the bottom end of the filter membrane 5 contacts the top end of the support net 4. The positioning device is disposed at the top opening of the tank 1. The positioning device is used to close the opening of the tank 1 and to press and limit the filter membrane 5.

[0023] like Figure 2 As shown, the positioning device includes a fixing device, a sealing cover 6, multiple sets of telescopic rods 7, multiple sets of springs 8, a positioning element 9, multiple sets of magnetic rods 10, and multiple sets of grooves 11. The sealing cover 6 is installed on the top opening of the tank body 1. The fixing device is set on the outer wall of the tank body 1 and is used to fix the sealing cover 6. The top ends of the multiple sets of telescopic rods 7 are all connected to the bottom ends of the sealing cover 6. The multiple sets of springs 8 are respectively fitted on the outer walls of the multiple sets of telescopic rods 7. The top end of the positioning element 9 is connected to the bottom ends of the multiple sets of telescopic rods 7. The multiple sets of magnetic rods 10 are all installed at the bottom ends of the positioning element 9. The multiple sets of grooves 11 are all set on the top end of the fixing ring 3.

[0024] In this embodiment, the filter membrane 5 is embedded inside the fixing ring 3, and the lower part of the filter membrane 5 is supported by the support net 4. Then, the fixing ring 3 is slidably installed inside the tank body 1, so that the bottom end of the fixing ring 3 contacts the top end of the support ring 2. Then, the positioning device is installed at the opening of the tank body 1, so that the positioning device closes the opening of the tank body 1. At the same time, the positioning device presses the fixing ring 3 and the filter membrane 5 downward, thereby improving the installation firmness of the fixing ring 3 and improving the positioning stability of the filter membrane 5. When the filter membrane 5 needs to be replaced, the positioning device is disassembled, and the positioning device drives the fixing ring 3 to move upward, thereby moving the filter membrane 5 out of the tank body 1, improving the convenience of operation.

[0025] Example 2

[0026] Based on Example 1, such as Figure 3 As shown, this utility model discloses a filter membrane fixing device for a bubble point tester. The fixing device includes multiple sets of bases 12, multiple sets of connectors 13, multiple sets of screws 14, and multiple sets of pressing parts 15. The multiple sets of bases 12 are all installed on the outer side wall of the tank body 1. The multiple sets of connectors 13 are rotatably installed on the multiple sets of bases 12. The lower parts of the multiple sets of screws 14 are respectively screwed onto the multiple sets of connectors 13. The multiple sets of pressing parts 15 are respectively set on the top of the multiple sets of screws 14. The outer side wall of the sealing cover 6 is provided with multiple sets of notches.

[0027] like Figure 2 As shown, it also includes a fixing block 16 and a handle 17. The fixing block 16 is installed on the top of the sealing cover 6, and the handle 17 is rotatably installed on the fixing block 16.

[0028] like Figure 4 As shown, it also includes a pressing member 18, which is disposed at the bottom end of the positioning member 9;

[0029] like Figure 3 As shown, it also includes multiple sets of handles 19, which are respectively installed on the top of multiple sets of pressing parts 15;

[0030] like Figure 2 As shown, a torsion spring is provided at the rotatable connection between the handle 17 and the fixing block 16;

[0031] In this embodiment, after the sealing cap 6 is installed at the top opening of the tank body 1, multiple sets of springs 8 provide a downward pushing force to the positioning member 9, causing the positioning member 9 to drive multiple sets of magnetic rods 10 to press down on the fixing ring 3. At the same time, the lower parts of the multiple sets of magnetic rods 10 extend into the multiple sets of grooves 11, thereby fixing the fixing ring 3 with the multiple sets of magnetic rods 10, improving the installation stability of the filter membrane 5. When the sealing cap 6 is disassembled and moved upward, the sealing cap 6 drives the multiple sets of magnetic rods 10 to move upward, and the multiple sets of magnetic rods 10 are fixed by the magnetic force between them and the multiple sets of grooves 11. Ring 3 moves upward, thereby causing the fixing ring 3 to move the filter membrane 5 out of the tank body 1, improving the convenience of replacing the filter membrane 5. After the sealing cover 6 is installed at the top opening of the tank body 1, by rotating multiple sets of connecting parts 13 upward, multiple sets of connecting parts 13 drive multiple sets of screws 14 to be embedded into the notch of the sealing cover 6. Then, by rotating and adjusting multiple sets of pressing parts 15 to drive multiple sets of screws 14, multiple sets of screws 14 drive multiple sets of pressing parts 15 downward, thereby pressing and fixing the sealing cover 6, improving the convenience of installing and removing the sealing cover 6.

[0032] This utility model discloses a filter membrane fixing device for a bubble point tester. During operation, the filter membrane 5 is embedded inside the fixing ring 3, and the lower part of the filter membrane 5 is supported by the support net 4. Then, the fixing ring 3 is slidably installed inside the tank body 1, so that the bottom end of the fixing ring 3 contacts the top end of the support ring 2. Next, a positioning device is installed at the opening of the tank body 1, closing the opening and simultaneously pressing the fixing ring 3 and the filter membrane 5 downwards. When the filter membrane 5 needs to be replaced, the positioning device is disassembled, causing the fixing ring 3 to move upwards, thereby removing the filter membrane 5 from the outside of the tank body 1.

[0033] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A filter membrane fixing device for a bubble point tester, comprising a tank (1) and a support ring (2), wherein the top of the tank (1) is provided with an opening, and the support ring (2) is installed on the inner side wall of the tank (1); characterized in that, It also includes a positioning device, a fixing ring (3), a support net (4), and a filter membrane (5). The fixing ring (3) is set inside the tank body (1), and the bottom end of the fixing ring (3) contacts the top end of the support ring (2). The support net (4) is installed on the inner wall of the fixing ring (3). The filter membrane (5) is embedded inside the fixing ring (3), and the bottom end of the filter membrane (5) contacts the top end of the support net (4). The positioning device is set at the top opening of the tank body (1). The positioning device is used to close the opening of the tank body (1) and to press and limit the filter membrane (5).

2. The filter membrane fixing device for a bubble point tester as described in claim 1, characterized in that, The positioning device includes a fixing device, a sealing cap (6), multiple sets of telescopic rods (7), multiple sets of springs (8), a positioning element (9), multiple sets of magnetic rods (10), and multiple sets of grooves (11). The sealing cap (6) is installed on the top opening of the tank body (1). The fixing device is set on the outer wall of the tank body (1) and is used to fix the sealing cap (6). The top ends of the multiple sets of telescopic rods (7) are all connected to the bottom end of the sealing cap (6). The multiple sets of springs (8) are respectively fitted on the outer wall of the multiple sets of telescopic rods (7). The top end of the positioning element (9) is connected to the bottom end of the multiple sets of telescopic rods (7). The multiple sets of magnetic rods (10) are all installed on the bottom end of the positioning element (9). The multiple sets of grooves (11) are all set on the top end of the fixing ring (3).

3. The filter membrane fixing device for a bubble point tester as described in claim 2, characterized in that, The fixing device includes multiple sets of bases (12), multiple sets of connectors (13), multiple sets of screws (14), and multiple sets of pressing parts (15). The multiple sets of bases (12) are all installed on the outer wall of the tank body (1). The multiple sets of connectors (13) are rotatably installed on the multiple sets of bases (12). The lower parts of the multiple sets of screws (14) are respectively screwed onto the multiple sets of connectors (13). The multiple sets of pressing parts (15) are respectively set on the top of the multiple sets of screws (14), and the outer wall of the sealing cover (6) is provided with multiple sets of notches.

4. The filter membrane fixing device for a bubble point tester as described in claim 2, characterized in that, It also includes a fixing block (16) and a handle (17), the fixing block (16) being installed on the top of the sealing cover (6), and the handle (17) being rotatably installed on the fixing block (16).

5. The filter membrane fixing device for a bubble point tester as described in claim 1, characterized in that, It also includes a pressing element (18), which is located at the bottom of the positioning element (9).

6. The filter membrane fixing device for a bubble point tester as described in claim 3, characterized in that, It also includes multiple sets of handles (19), which are respectively installed on the top of multiple sets of pressing parts (15).

7. The filter membrane fixing device for a bubble point tester as described in claim 4, characterized in that, A torsion spring is provided at the rotatable connection between the handle (17) and the fixing block (16).

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