Filter element detection device

Abstract

The utility model provides a filter element detection device which comprises an air cylinder, a top disc used for pressing a filter element is installed at the movable end of the air cylinder, a bottom disc used for installing the inner bottom of a liquid container is arranged under the top disc, a hose is installed on the upper surface of the top disc, and a pressure gauge is installed at the end, away from the top disc, of the hose. The end, away from the hose, of the pressure gauge is provided with a valve used for being connected with an air supply pipeline, the end, close to the top disc, of the hose is sleeved with an annular expansion rubber pipe, a lug is pasted to the outer surface of the expansion rubber pipe through glue, and the face, away from the expansion rubber pipe, of the lug is provided with an inflating valve communicated with the expansion rubber pipe. The air supply device has the advantages that the situation that the hose is excessively bent in the process that the air cylinder drives the top tray is prevented, and air supply is continuous.

Description

Technical Field

[0001] The utility model relates to a filter element detection device, belonging to the technical field of filter element detection. Background Technique

[0002] The airtightness detection of the filter element is an important step to ensure that there is no leakage in the air filter or other fluid filtration equipment during use. The bubble point method is one of the commonly used methods for filter element detection. The filter element is immersed in a liquid (such as water or alcohol), and then the gas pressure is slowly increased to observe whether there are bubbles in the liquid. When the first continuous bubble appears, record the pressure value at this time. Compare with the standard bubble point pressure value to judge whether the filter element is qualified. The filter element is placed between the chassis and the top plate, where the top plate is driven by a cylinder to move up and down. The chassis is placed in a liquid container. Then, a hose is installed between the pressure gauge and the top plate, and a valve is installed between the pressure gauge and the air supply pipeline. After the valve is opened, the compressed air in the air supply pipeline enters the filter element between the top plate and the top plate through the hose, so as to facilitate the detection of the filter element. During the process of the cylinder driving the top plate to move up and down, the hose needs to have a certain redundant length, so there is a situation where the end of the hose close to the top plate is excessively bent. During the slow air supply process, there is a situation where air cannot smoothly pass through the excessively bent part of the hose, affecting the detection of the filter element. Content of the Utility Model

[0003] Aiming at the deficiencies of the existing technology, the purpose of the utility model is to provide a filter element detection device to solve the problems raised in the above background technique. The utility model prevents the hose from being excessively bent during the process of the cylinder driving the top plate, so as to ensure continuous air supply.

[0004] To achieve the above purpose, the utility model is realized by the following technical solutions: A filter element detection device includes a cylinder, and a top plate for pressing the filter element is installed at the movable end of the cylinder. A chassis for installing at the inner bottom of the liquid container is arranged directly below the top plate. A hose is installed on the upper surface of the top plate. A pressure gauge is installed at the end of the hose far from the top plate. A valve for connecting the air supply pipeline is installed at the end of the pressure gauge far from the hose. The valve and the pressure gauge are arranged horizontally. An annular expansion rubber tube is sleeved at the end of the hose close to the top plate. An ear seat is pasted on the outer surface of the expansion rubber tube through glue. An air nozzle connected and communicated with the expansion rubber tube is installed on the side of the ear seat背离 the expansion rubber tube. The ear seat is connected to the top plate through a support member.

[0005] Further, the support member includes a guide sleeve. A guide sleeve is installed on the side of the ear seat背离 the expansion rubber tube. A vertical rod is inserted into the guide sleeve. The lower end of the vertical rod is fixedly connected to the top plate. A threaded hole is opened on one side of the guide sleeve. A positioning screw for restricting the relative position between the guide sleeve and the vertical rod is threadedly connected in the threaded hole.

[0006] Furthermore, the cross-section of the vertical rod is rectangular, and the cross-section of the internal space of the guide sleeve is rectangular.

[0007] Furthermore, a pipe fitting is installed on the upper surface of the top plate, penetrating the top plate, and the end of the hose away from the pressure gauge is connected to the pipe fitting via a pipe clamp.

[0008] Furthermore, two guide holes are symmetrically opened on the upper surface of the top plate, and guide rods are inserted into the guide holes. The lower ends of the guide rods are connected and fixed to the base plate.

[0009] Furthermore, two symmetrically arranged threaded blind holes are provided on the upper surface of the chassis, and the lower end of the guide rod is machined with external threads, and the lower end of the guide rod is threadedly connected in the threaded blind holes.

[0010] Furthermore, an upper positioning ring is installed on the lower surface of the top plate, and an upper sealing ring for fitting onto the filter element is pasted inside the upper positioning ring. A lower positioning ring is installed on the upper surface of the base plate, and a lower sealing ring for fitting onto the filter element is pasted inside the lower positioning ring. A connecting ring for connection and fixation to the base plate is fitted at the lower end of the base plate, and multiple fixing holes are equidistantly spaced in a ring on the upper surface of the connecting ring.

[0011] Furthermore, an L-shaped seat is provided on the upper side of the top plate, the cylinder body of the cylinder is installed on the upper surface of the horizontal part of the L-shaped seat, and a plurality of small holes for inserting bolts are evenly opened on the vertical part of the L-shaped seat.

[0012] Furthermore, a connecting pipe is installed at the end of the valve away from the pressure gauge, and a flange is installed at the end of the connecting pipe away from the valve.

[0013] Furthermore, a connecting sleeve is installed on the upper surface of the top plate, and the movable end of the cylinder is installed inside the connecting sleeve.

[0014] The beneficial effects of this utility model are:

[0015] 1. Adjust the height of the guide sleeve along the vertical rod, thereby changing the height of the expansion rubber tube. This changes the relative position of the expansion rubber tube and the hose near the top plate. Use the positioning screw to limit the relative position of the guide sleeve and the vertical rod, so as to adjust the relative position of the expansion rubber tube and the hose as needed.

[0016] 2. Adjust the expansion degree of the expansion rubber hose using the valve, then pass the hose through the expansion rubber hose. The expansion rubber hose then supports the bend of the hose near the top plate. Because the volume of the expansion rubber hose is adjustable, it is easy to adjust the bending arc of the hose near the top plate. With the support of the expansion rubber hose, excessive bending of the hose end near the top plate is prevented, and the valve and pressure gauge are arranged horizontally. Therefore, the end of the hose near the pressure gauge can be bent gently, thus preventing excessive bending of the hose during the cylinder-driven top plate process, ensuring continuous air supply. Attached Figure Description

[0017] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0018] Figure 1 This is a schematic diagram of the structure of a filter element testing device according to the present invention;

[0019] Figure 2 This is another perspective view of the filter element testing device of this utility model;

[0020] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0021] Figure 4 This is a schematic diagram of the assembly of the guide sleeve, valve, ear seat and expansion rubber tube in a filter element testing device of this utility model;

[0022] Figure 5 This is an assembly diagram of the top plate, vertical rod, and cylinder in a filter element testing device according to the present invention.

[0023] Figure 6 This is an assembly diagram of the lower positioning ring and the chassis in a filter element testing device according to the present invention;

[0024] In the diagram: 1-Cylinder, 2-Expansion rubber hose, 3-Connecting sleeve, 4-Guide rod, 5-Top plate, 6-Lower sealing ring, 7-Connecting ring, 8-Base plate, 9-Lower positioning ring, 10-L-shaped seat, 11-Vertical rod, 12-Hose, 13-Pressure gauge, 14-Valve, 15-Connecting pipe, 16-Upper positioning ring, 17-Upper sealing ring, 18-Ear seat, 19-Valve nozzle, 20-Positioning screw, 21-Guide sleeve, 22-Threaded hole, 23-Guide hole, 24-Threaded blind hole. Detailed Implementation

[0025] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0026] Please see Figure 1 and Figure 2 This utility model provides a technical solution: a filter element testing device, including a cylinder 1, a top plate 5 for holding the filter element is installed on the movable end of the cylinder 1, wherein a connecting sleeve 3 is installed on the upper surface of the top plate 5, so that the movable end of the cylinder 1 is installed in the connecting sleeve 3, thereby completing the assembly of the movable end of the cylinder 1 and the top plate 5. An L-shaped seat 10 is provided on the upper side of the top plate 5, and the cylinder body of the cylinder 1 is installed on the upper surface of the horizontal part of the L-shaped seat 10. The vertical part of the L-shaped seat 10 is evenly provided with a plurality of small holes for inserting bolts. The L-shaped seat 10 is installed at the required position by bolts, thereby restricting the position of the cylinder 1.

[0027] See Figure 1 , Figure 2 and Figure 6 A base plate 8 is located directly below the top plate 5 for mounting the bottom of the liquid container. An upper positioning ring 16 is installed on the lower surface of the top plate 5, and an upper sealing ring 17 for fitting onto the filter element is attached inside the upper positioning ring 16. A lower positioning ring 9 is installed on the upper surface of the base plate 8, and a lower sealing ring 6 for fitting onto the filter element is attached inside the lower positioning ring 9. A connecting ring 7 is fitted at the lower end of the base plate 8 and fixed to the base plate 8. Multiple fixing holes are equidistantly spaced in a ring on the upper surface of the connecting ring 7, so that the connecting ring 7 can be installed in the liquid container storing alcohol. Then, one end of the filter element is inserted into the lower sealing ring 6. Subsequently, the cylinder 1 is controlled to extend, so that the top plate 5 moves downward until the upper sealing ring 17 is fitted onto the upper end of the filter element, thus completing the restriction of the filter element's position.

[0028] See Figure 1 and Figure 2 A pipe connector is installed on the upper surface of the top plate 5, which is connected to the hose 12 by a pipe clamp. A pressure gauge 13 is installed at the end of the hose 12 away from the top plate 5. A valve 14 for connecting the gas supply pipeline is installed at the end of the pressure gauge 13 away from the hose 12. The valve 14 and the pressure gauge 13 are arranged horizontally. A connecting pipe 15 is installed at the end of the valve 14 away from the pressure gauge 13. A flange is installed at the end of the connecting pipe 15 away from the valve 14. After the connecting pipe 15 is connected to the gas supply pipeline, the valve 14 is opened, and the compressed air in the gas supply pipeline flows into the filter element through the hose 12. The compressed air pressure is slowly increased, and it is observed whether bubbles are generated in the alcohol. When the first continuous bubble appears, the pressure value at this time is recorded and compared with the standard bubble point pressure value to determine whether the filter element is qualified.

[0029] See Figures 1-5A ring-shaped expansion rubber tube 2 is fitted onto one end of the hose 12 near the top plate 5. An ear seat 18 is glued to the outer surface of the expansion rubber tube 2. A valve 19 connected to and communicating with the expansion rubber tube 2 is installed on the side of the ear seat 18 opposite to the expansion rubber tube 2. A guide sleeve 21 is installed on the side of the ear seat 18 opposite to the expansion rubber tube 2. The cross-section of the guide sleeve 21 is rectangular. A vertical rod 11 with a rectangular cross-section is inserted into the guide sleeve 21. The lower end of the vertical rod 11 is connected and fixed to the top plate 5. A threaded hole 22 is opened on one side of the guide sleeve 21. A positioning screw 20 for limiting the relative position of the guide sleeve 21 and the vertical rod 11 is threaded into the threaded hole 22. Adjusting the height of the guide sleeve 21 along the vertical rod 11 changes the height of the expansion rubber tube 2, thus changing the relative position of the expansion rubber tube 2 and the hose 12 near the top plate 5. The relative positions of the guide sleeve 21 and the vertical rod 11 are restricted by the positioning screw 20, allowing the relative positions of the expansion rubber tube 2 and the hose 12 to be adjusted as needed. The expansion degree of the expansion rubber tube 2 is adjusted by the valve 19, and then the hose 12 is passed through the expansion rubber tube 2. The expansion rubber tube 2 supports the bend of the hose 12 near the top plate 5. Since the volume of the expansion rubber tube 2 is adjustable, it is easy to adjust the bending arc of the bend of the hose 12 near the top plate 5. With the support of the expansion rubber tube 2, excessive bending of the end of the hose 12 near the top plate 5 is prevented. The valve 14 and the pressure gauge 13 are arranged horizontally, so the end of the hose 12 near the pressure gauge 13 can be bent gently, thus preventing excessive bending of the hose 12 during the process of the cylinder 1 driving the top plate 5, and ensuring continuous air supply.

[0030] See Figure 1 , Figure 2 , Figure 5 and Figure 6 Two guide holes 23 are symmetrically opened on the upper surface of the top plate 5. A guide rod 4 is inserted into the guide hole 23. Two threaded blind holes 24 are symmetrically arranged on the upper surface of the base plate 8. The lower end of the guide rod 4 is machined with external threads, so that the lower end of the guide rod 4 is threaded into the threaded blind hole 24, thus completing the assembly of the guide rod 4 and the base plate 8. The guide rod 4 and the guide hole 23 cooperate with each other to restrict the movement trajectory of the top plate 5.

[0031] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A filter element testing device, comprising a cylinder (1), characterized in that: The cylinder (1) is equipped with a top plate (5) for holding the filter element at its movable end. A base plate (8) for installing the bottom of the liquid container is located directly below the top plate (5). A hose (12) is installed on the upper surface of the top plate (5). A pressure gauge (13) is installed at the end of the hose (12) away from the top plate (5). A valve (14) for connecting the air supply line is installed at the end of the pressure gauge (13) away from the hose (12). The valve (14) and the pressure gauge (13) are arranged horizontally. An annular expansion rubber tube (2) is sleeved on the end of the hose (12) near the top plate (5). An ear seat (18) is glued to the outer surface of the expansion rubber tube (2). An air valve (19) connected to the expansion rubber tube (2) is installed on the side of the ear seat (18) away from the expansion rubber tube (2). The ear seat (18) is connected to the top plate (5) through a support.

2. The filter cartridge testing device according to claim 1, characterized in that: The support includes a guide sleeve (21). The guide sleeve (21) is installed on the side of the ear seat (18) away from the expansion rubber tube (2). A vertical rod (11) is inserted inside the guide sleeve (21). The lower end of the vertical rod (11) is connected and fixed to the top plate (5). A threaded hole (22) is opened on one side of the guide sleeve (21). A positioning screw (20) for limiting the relative position of the guide sleeve (21) and the vertical rod (11) is threaded inside the threaded hole (22).

3. The filter cartridge testing device according to claim 2, characterized in that: The cross-section of the vertical rod (11) is rectangular, and the cross-section of the internal space of the guide sleeve (21) is rectangular.

4. The filter cartridge testing device according to claim 1, characterized in that: The top plate (5) is equipped with a pipe joint that penetrates the top plate (5), and the end of the hose (12) away from the pressure gauge (13) is connected to the pipe joint through a pipe clamp.

5. The filter cartridge testing device according to claim 1, characterized in that: Two guide holes (23) are symmetrically opened on the upper surface of the top plate (5). A guide rod (4) is inserted into the guide hole (23), and the lower end of the guide rod (4) is connected and fixed to the base plate (8).

6. The filter cartridge testing device according to claim 5, characterized in that: The upper surface of the chassis (8) has two symmetrically arranged threaded blind holes (24), the lower outer surface of the guide rod (4) is machined with external threads, and the lower end of the guide rod (4) is threadedly connected in the threaded blind hole (24).

7. The filter cartridge testing device according to claim 1, characterized in that: The top plate (5) is equipped with an upper positioning ring (16) on its lower surface. An upper sealing ring (17) for fitting onto the filter element is pasted inside the upper positioning ring (16). The bottom plate (8) is equipped with a lower positioning ring (9) on its upper surface. A lower sealing ring (6) for fitting onto the filter element is pasted inside the lower positioning ring (9). A connecting ring (7) for connecting and fixing to the bottom plate (8) is fitted at the lower end of the bottom plate (8). Multiple fixing holes are equidistantly arranged in a ring on the upper surface of the connecting ring (7).

8. The filter cartridge testing device according to claim 1, characterized in that: The top plate (5) is provided with an L-shaped seat (10) on the upper side. The cylinder body of the cylinder (1) is installed on the upper surface of the horizontal part of the L-shaped seat (10). The vertical part of the L-shaped seat (10) is evenly provided with a plurality of small holes for inserting bolts.

9. The filter cartridge testing device according to claim 1, characterized in that: A connecting pipe (15) is installed at the end of the valve (14) away from the pressure gauge (13), and a flange is installed at the end of the connecting pipe (15) away from the valve (14).

10. A filter cartridge testing device according to claim 1, characterized in that: A connecting sleeve (3) is installed on the upper surface of the top plate (5), and the movable end of the cylinder (1) is installed inside the connecting sleeve (3).

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