A filter element air tightness detection device

Abstract

The utility model discloses a filter core air tightness detection equipment, including the case, the case upper portion is fixed with a plurality of detection mechanism, and the detection mechanism includes first support, second support third support and fourth support, and third support fourth support is located between first support and second support, and the first support upper portion is fixed with first air cylinder, and the telescopic link end of first air cylinder is fixed with first push -plate, and the second support upper portion is fixed with second air cylinder, and the telescopic link end of second air cylinder is fixed with second push -plate, and second push -plate is opposite first push -plate, and fourth support and case upper portion are fixed through quick release spare. The utility model discloses fourth support through quick release spare and case surface fixed, only need to press quick release spare to be able to with fourth support separation case, and the replacement of fourth support is convenient.

Description

Technical Field

[0001] This utility model relates to testing instruments, and more specifically, to a filter element airtightness testing device. Background Technology

[0002] The filter cartridges used in water purifiers are generally equipped with a cylinder and an end cap. The cylinder and end cap are fixed by threaded connection or spiral welding. After the filter element is installed inside the filter cartridge, only the filter cartridge can be tested by air to check whether there is any leakage at the connection between the cylinder and the end cap. However, a water purifier often has multiple filter cartridges with the same cylinder size. Depending on the function of the filter cartridge, the position and number of the interface at its end cap are also different. Therefore, the bracket supporting the end cap of the air testing equipment is often replaced frequently. The conventional method of fixing the bracket with screws makes the replacement operation inconvenient. Therefore, we continue to improve this. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a filter element airtightness testing device. The fourth bracket is fixed to the surface of the chassis by a quick release piece. The fourth bracket can be removed from the chassis simply by pressing the quick release piece, which facilitates the replacement of the fourth bracket.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a filter element airtightness testing device, comprising a chassis, with multiple testing mechanisms fixed on the upper part of the chassis. Each testing mechanism includes a first support, a second support, a third support, and a fourth support. The third and fourth supports are located between the first and second supports. A first cylinder is fixed on the upper part of the first support, and a first push plate is fixed to the end of the telescopic rod of the first cylinder. A second cylinder is fixed on the upper part of the second support, and a second push plate is fixed to the end of the telescopic rod of the second cylinder. The second push plate faces the first push plate. The fourth support is fixed to the upper part of the chassis by quick-release parts.

[0005] Furthermore, an air nozzle is fixed to the second push plate.

[0006] Furthermore, the quick-release component includes a insert, a pressing component, and a locking sleeve. The insert is fixedly connected to both sides of the fourth bracket, and the locking sleeve is fixed inside the chassis. The insert and the locking sleeve are connected by the pressing component.

[0007] Furthermore, the lower part of the sleeve is provided with an annular rib, the lower part of the annular rib is provided with multiple buckles, the outer wall of the buckle is provided with a protrusion, the locking sleeve includes a clearance hole, the inner wall of the clearance hole is provided with an annular step, the buckle is inserted into the clearance hole, and the protrusion abuts against the lower part of the step.

[0008] Furthermore, the annular rib is threadedly connected to the fourth bracket, and the locking sleeve is threadedly connected to the chassis.

[0009] Furthermore, the sleeve has an internal mounting groove, the lower part of the mounting groove has a through hole, the lower part of the pressing member has a valve stem, the valve stem passes through the mounting groove and is inserted into the through hole, the lower end of the valve stem has a boss, and the pressing member moves up and down so that the boss is at least partially located in the through hole or disengaged from the lower end of the through hole.

[0010] Furthermore, the upper end of the pressing member is higher than the upper part of the insert sleeve, the pressing member is in clearance fit with the inner wall of the mounting groove, a spring is sleeved on the outer side of the valve stem, the upper end of the spring abuts against the lower part of the pressing member and the lower end abuts against the bottom of the mounting groove, a snap ring is snapped on the outer side of the boss, and the upper end of the snap ring abuts against the lower end of the buckle.

[0011] Furthermore, the distance between the valve stem and the inner wall of the buckle is greater than the distance between the protrusion and the step, the distance between the boss and the inner wall of the buckle is less than the distance between the protrusion and the step, and the pressing length of the pressing member is greater than the height of the boss.

[0012] Furthermore, the upper part of the sleeve is provided with outwardly extending ribs.

[0013] Furthermore, a fifth bracket is fixed to the upper part of the chassis between the first bracket and the second bracket, and a sensor is fixed to the upper part of the fifth bracket.

[0014] In summary, this utility model has the following beneficial effects:

[0015] The combination of the buckle protrusion and the locking ring step enables the plug and locking sleeve to be snapped together, thereby achieving a snap-fit ​​connection between the fourth bracket and the chassis, which facilitates the assembly and disassembly of the fourth bracket. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this embodiment;

[0017] Figure 2 This is a partial sectional view of this embodiment;

[0018] Figure 3 This is a partial sectional view of this embodiment;

[0019] Figure 4 for Figure 3 Enlarged view at point A.

[0020] Reference numerals: 1. Chassis; 11. First bracket; 12. Second bracket; 13. Third bracket; 14. Fourth bracket; 15. Fifth bracket; 2. First cylinder; 3. First push plate; 4. Second cylinder; 5. Second push plate; 51. Nozzle; 6. Quick release piece; 61. Sleeve; 611. Mounting groove; 612. Annular rib; 613. Buckle; 614. Through hole; 615. Protrusion; 616. Raised rib; 62. Pressing piece; 621. Valve stem; 622. Boss; 63. Locking sleeve; 631. Clearance hole; 632. Step; 64. Spring; 65. Snap ring; 7. Sensor; 8. Cylinder; 9. End cap. Detailed Implementation

[0021] 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.

[0022] like Figures 1 to 4 As shown, this embodiment discloses a filter element airtightness testing device, including a housing 1. Multiple sets of testing mechanisms are fixed on the upper part of the housing 1. Each set of testing mechanisms can perform airtightness testing on a filter element. In this embodiment, there are four sets of testing mechanisms.

[0023] The testing mechanism includes a first support 11, a second support 12, a third support 13, and a fourth support 14. The first support 11, the second support 12, and the third support 13 are fixed to the housing 1 by bolts. The third support 13 and the fourth support 14 are located between the first support 11 and the second support 12. A first cylinder 2 is fixed to the upper part of the first support 11. A first push plate 3 is fixed to the end of the telescopic rod of the first cylinder 2. A second cylinder 4 is fixed to the upper part of the second support 12. A second push plate 5 is fixed to the end of the telescopic rod of the second cylinder 4. An air nozzle 51 is fixed to the second push plate 5. The air nozzle 51 on each second push plate 5 corresponds to the interface on the filter element end cover 9. The second push plate 5 is directly opposite the first push plate 3.

[0024] During testing, the filter element is placed on the corresponding testing mechanism, with the filter element cylinder 8 supported on the third bracket 13 and the filter element end cap 9 supported on the fourth bracket 14. The first cylinder 2 operates, driving the first push plate 3 to move and abut against the end of the cylinder 8 away from the end cap 9, thereby fixing the filter element. The second cylinder 4 operates, driving the second push plate 5 to move towards the end cap 9, and the nozzle 51 is inserted into the corresponding interface. The nozzle 51 cooperates with the sealing ring in the filter element interface to seal it. External hydrogen and nitrogen gas is introduced into the filter element through the nozzle 51. The detection part of the water purifier leak detector (product model: ATH-3000W, this water purifier leak detector is existing technology and can detect leaked hydrogen and nitrogen gas and issue an alarm) is brought close to the connection between the filter element cylinder 8 and the end cap 9 to observe whether an alarm is issued.

[0025] A fifth bracket 15 is fixed on the upper part of the chassis 1 between the first bracket 11 and the second bracket 12. A sensor 7 is fixed on the upper part of the fifth bracket 15. The sensor 7 is an infrared sensor, and there are two of them. The detection mechanism is located between the two sensors 7.

[0026] like Figure 3 and Figure 4 As shown, the fourth bracket 14 is fixed to the upper part of the chassis 1 by a quick-release component 6. Specifically, the quick-release component 6 includes a sleeve 61, a pressing component 62, and a locking sleeve 63.

[0027] The insert 61 is fixedly connected to both sides of the fourth bracket 14, and the locking sleeve 63 is fixed inside the chassis 1. Specifically, the lower part of the insert 61 is provided with an annular rib 612, the annular rib 612 is threadedly connected to the fourth bracket 14, and the locking sleeve 63 is threadedly connected to the chassis 1.

[0028] The lower part of the annular rib 612 is provided with multiple buckles 613, and there are three buckles 613. The outer wall of the buckle 613 is provided with a protrusion 615. The locking sleeve 63 includes a clearance hole 631. The inner wall of the clearance hole 631 is provided with an annular step 632. The buckle 613 is inserted into the clearance hole 631. The protrusion 615 abuts against the lower part of the step 632. Through the cooperation of the buckle 613 protrusion 615 and the locking sleeve 63 annular step 632, the plug sleeve 61 and the locking sleeve 63 can be fastened together, thereby realizing the snap-fit ​​connection between the fourth bracket 14 and the chassis 1, which facilitates the assembly and disassembly of the fourth bracket 14.

[0029] The insert 61 and the locking sleeve 63 are connected by a pressing member 62. Specifically, the insert 61 has an internal mounting groove 611 with a through hole 614 at its lower part. The pressing member 62 has a valve stem 621 at its lower part, which passes through the mounting groove 611 and is inserted into the through hole 614. The lower end of the valve stem 621 has a boss 622. The pressing member 62 moves up and down so that the boss 622 is at least partially located in or detached from the lower end of the through hole 614. The upper end of the pressing member 62 is higher than the upper part of the insert 61. The pressing member 62 and the mounting groove are connected. The inner wall of 611 is clearance-fitted. A spring 64 is sleeved on the outer side of the valve stem 621. The upper end of the spring 64 abuts against the lower part of the pressing member 62 and the lower end abuts against the bottom of the mounting groove 611. A retaining spring 65 is snapped onto the outer side of the boss 622. The upper end of the retaining spring 65 abuts against the lower end of the buckle 613. The distance between the valve stem 621 and the inner wall of the buckle 613 is greater than the contact distance between the protrusion 615 and the step 632. The distance between the boss 622 and the inner wall of the buckle 613 is less than the contact distance between the protrusion 615 and the step 632. The pressing length of the pressing member 62 is greater than the height of the boss 622.

[0030] The fourth bracket 14 is fastened to the chassis 1, which facilitates the assembly and disassembly of the fourth bracket 14. However, the fourth bracket 14 is also prone to detachment under force. Therefore, by setting up the pressing part 62, after the fourth bracket 14 is fixed, the protrusion 622 of the pressing part 62 is at least partially located between the buckles 613. At this time, even if the fourth bracket 14 is pulled upward, the buckles 613 are limited by the protrusion 622, and their deformation range is very small. The protrusion 615 will not disengage from the step 632, so the fourth bracket 14 cannot be pulled out. When the fourth bracket 14 needs to be replaced, simply press down the pressing part 62. The protrusion 622 will move downward and completely disengage from the buckle 613. At this time, simply pull up the sleeve 61. Its buckle 613 will deform inward under the influence of the pulling force and disengage from the step 632. The fourth bracket 14 can then be pulled upward directly to complete the disassembly of the fourth bracket 14.

[0031] The upper part of the sleeve 61 is provided with an outwardly extending rib 616. By setting the rib 616, it can act as a force application part, so that during operation, you only need to pinch the lower part of the rib 616 with two fingers and press the pressing part 62 with one finger, which is convenient to operate.

[0032] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A filter element airtightness testing device, characterized in that, The device includes a chassis (1), on the upper part of which multiple sets of detection mechanisms are fixed. The detection mechanisms include a first bracket (11), a second bracket (12), a third bracket (13), and a fourth bracket (14). The third bracket (13) and the fourth bracket (14) are located between the first bracket (11) and the second bracket (12). A first cylinder (2) is fixed on the upper part of the first bracket (11). A first push plate (3) is fixed at the end of the telescopic rod of the first cylinder (2). A second cylinder (4) is fixed on the upper part of the second bracket (12). A second push plate (5) is fixed at the end of the telescopic rod of the second cylinder (4). The second push plate (5) is directly opposite the first push plate (3). The fourth bracket (14) is fixed to the upper part of the chassis (1) by a quick-release piece (6).

2. The filter element airtightness testing device according to claim 1, characterized in that, An air nozzle (51) is fixed at the second push plate (5).

3. The filter element airtightness testing device according to claim 1, characterized in that, The quick-release component (6) includes a insert (61), a pressing component (62), and a locking sleeve (63). The insert (61) is fixedly connected to both sides of the fourth bracket (14), and the locking sleeve (63) is fixed inside the chassis (1). The insert (61) and the locking sleeve (63) are connected by the pressing component (62).

4. The filter element airtightness testing device according to claim 3, characterized in that, The lower part of the sleeve (61) is provided with an annular rib (612), and the lower part of the annular rib (612) is provided with multiple buckles (613). The outer wall of the buckle (613) is provided with a protrusion (615). The lock sleeve (63) includes a clearance hole (631). The inner wall of the clearance hole (631) is provided with an annular step (632). The buckle (613) is inserted into the clearance hole (631), and the protrusion (615) abuts against the lower part of the step (632).

5. The filter element airtightness testing device according to claim 4, characterized in that, The annular rib (612) is threadedly connected to the fourth bracket (14), and the locking sleeve (63) is threadedly connected to the chassis (1).

6. The filter element airtightness testing device according to claim 4, characterized in that, The insert (61) has an internal mounting groove (611) and a through hole (614) at the lower part of the mounting groove (611). The pressing member (62) has a valve stem (621) at the lower part. The valve stem (621) passes through the mounting groove (611) and is inserted into the through hole (614). The lower end of the valve stem (621) has a boss (622). The pressing member (62) moves up and down so that the boss (622) is at least partially located in the through hole (614) or disengaged from the lower end of the through hole (614).

7. The filter element airtightness testing device according to claim 6, characterized in that, The upper end of the pressing member (62) is higher than the upper part of the sleeve (61). The pressing member (62) is in clearance fit with the inner wall of the mounting groove (611). A spring (64) is sleeved on the outer side of the valve stem (621). The upper end of the spring (64) abuts against the lower part of the pressing member (62) and the lower end abuts against the bottom of the mounting groove (611). A snap ring (65) is snapped on the outer side of the boss (622). The upper end of the snap ring (65) abuts against the lower end of the buckle (613).

8. The filter element airtightness testing device according to claim 6, characterized in that, The distance between the valve stem (621) and the inner wall of the buckle (613) is greater than the contact distance between the protrusion (615) and the step (632), the distance between the boss (622) and the inner wall of the buckle (613) is less than the contact distance between the protrusion (615) and the step (632), and the pressing length of the pressing member (62) is greater than the height of the boss (622).

9. The filter element airtightness testing device according to claim 6, characterized in that, The upper part of the sleeve (61) is provided with an outwardly extending rib (616).

10. The filter element airtightness testing device according to claim 1, characterized in that, A fifth bracket (15) is fixed on the upper part of the chassis (1) between the first bracket (11) and the second bracket (12), and a sensor (7) is fixed on the upper part of the fifth bracket (15).

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