Air tightness detection device for filter element production
By designing an airtightness detection device for the production of filter elements including a base, reservoir, sealing disk, transmission shaft and sealing block, the problem of difficult observation of filter elements detection errors and leakage orientations in the prior art is solved, and accurate airtightness detection and convenient return-to-factory maintenance are achieved.
Patent Information
- Application Number
- CN202421496013.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-27
- Publication Date
- 2025-04-18
- Estimated Expiration
- 2034-06-27
AI Technical Summary
When the existing airtightness detection device detects the filter element, the connection port is not tightly sealed, resulting in gas leakage, causing detection errors, and the leakage direction cannot be visually observed, which increases the difficulty of returning to the factory for maintenance.
An airtightness detection device for filter element production is designed, including a base, reservoir, sealing disk, transmission shaft and sealing block. By clamping the fixed structure and reservoir design, the fixing and airtightness detection of the filter element are ensured.
It effectively avoids detection errors caused by intimate sealing of the ports, and observes whether there are bubbles in the reservoir, and intuitively judges the lack of airtightness of the filter element, which simplifies the factory maintenance process.
Smart Images
Figure CN222774207U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of filter element detection, in particular to an air tightness detection device for filter element production. Background Art
[0002] Filter element is a professional term for filtering and purification functions. In order to purify the resources of the original fluid and the simple device for separating the resources, the filter element is now mainly used in the filtration industry such as oil filtration, air filtration, and water filtration. Different types of filter elements are usually made of different materials, such as filter paper, activated carbon, ceramics, polymer materials, etc., and have different filtering accuracy and performance characteristics to adapt to various filtering scenarios and requirements. The air filter element needs to be tested for air tightness at the end of production, so an air tightness detection device is required.
[0003] An airtightness testing device is a device used to detect the sealing performance of an object. It mainly fills a certain pressure of gas into the object to be tested, and then monitors the pressure changes or uses other detection methods to determine whether there is a gas leak, thereby determining whether the airtightness of the object meets the requirements. Common airtightness testing methods include pressure drop method, bubble method, helium mass spectrometry leak detection method, etc. Different methods are suitable for different detection scenarios and requirements.
[0004] When the existing air tightness detection device detects the filter element, there will be a problem of loose sealing at the connection port, which will cause gas leakage at the connection, resulting in a large error in the detection and leading to detection failure; and the existing air tightness detection device cannot intuitively observe the leakage direction of the filter element in terms of air tightness, thereby increasing the difficulty of subsequent return to the factory for inspection and repair. Therefore, in view of the above problems, an air tightness detection device for filter element production is proposed. Utility Model Content
[0005] In order to make up for the deficiencies of the prior art and address the problems existing in the existing equipment, the utility model proposes an air tightness detection device for filter element production.
[0006] The utility model solves the technical problem by adopting a technical scheme that is an air tightness detection device for filter element production, comprising a base, a water reservoir is arranged at the top of the base, a water reservoir cavity is opened at the center of the water reservoir, a water outlet is arranged inside the water reservoir cavity, sealing disks are arranged on both sides of the water reservoir cavity, the sealing disk is connected to the inner wall of the water reservoir by fixing bolts, a fixing disk is welded at the top of the sealing disk, a bayonet is arranged on the outside of the top of the fixing disk, the bayonet is engaged and connected with an auxiliary ring, a lower sealing disk is welded at the top of the auxiliary ring, a card slot is opened at the top of the lower sealing disk, a No. 2 limiting plate is arranged inside the card slot, five No. 2 guide rails are opened inside the No. 2 limiting plate, a transmission shaft is inserted inside the No. 2 guide rail, a sealing block is welded at the center of the transmission shaft, the other end of the transmission shaft is inserted inside the transmission shaft, the No. 1 guide rail is five through holes inside the No. 1 limiting plate, the top of the No. 1 limiting plate is connected to a rotating disk, a through hole is opened at the center of the rotating disk, and the through hole is consistent with the caliber of the air transfer port at the center of the lower sealing disk; the filter element is fixed by this structure.
[0007] Preferably, a through hole is opened in the center of the sealing disk, the through hole is connected to the air inlet, the air inlet is the through hole inside the No. 2 air duct, the bottom end of the No. 2 air duct is connected to the No. 1 air duct, the No. 1 air duct is connected to the output end of the air booster pump, a control switch is provided on one side of the air booster pump, the control switch is connected to the air booster pump circuit, and is used to control the air booster pump; with this structure, air is filled into the filter element through the air booster pump with model GPV05.
[0008] Preferably, the internal perforation of the sealing disk is connected to the interior of the fixed disk, and a threaded hole is provided inside the fixed disk, and the diameter of the threaded hole is consistent with the diameter of the external thread of the filter element; a perforation is opened inside the auxiliary ring, and the diameter of the perforation is connected to the air transfer port; the end points of the No. 2 guide rail and the No. 1 guide rail are designed as arcs, and the diameter of the transmission shaft is consistent with the diameter of the No. 1 guide rail and the No. 2 guide rail; an inlet pipe is inserted into the water reservoir, and the other end of the inlet pipe is connected to a faucet; this structure increases the stability and sealing of the device operation.
[0009] The utility model is beneficial in that:
[0010] The utility model adds a clamping and fixing structure inside the device, and rotates the rotating disk to make the sealing block located below the rotating disk converge and clamp the filter element, thereby isolating the two ports of the filter element from the outside world, thereby avoiding detection errors caused by poor sealing at the ports. By adding a water reservoir design on the base, the filter element can be fixed inside the water reservoir, and if the filter element is not airtight, bubbles will appear inside the water reservoir, thereby judging the insufficient airtightness of the filter element, which is convenient for subsequent return to the factory for inspection and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.
[0012] Figure 1 It is a schematic diagram of the overall structure of the device;
[0013] Figure 2 This is a schematic diagram of the gas transmission structure;
[0014] Figure 3 It is a schematic diagram of a fixed structure;
[0015] Figure 4 is a schematic diagram of the clamping structure;
[0016] In the figure: 1. base; 2. water reservoir; 3. water inlet pipe; 4. water storage chamber; 5. water outlet; 6. air booster pump; 7. control switch; 8. No. 1 air duct; 9. No. 2 air duct; 10. sealing plate; 11. air inlet; 12. fixed plate; 13. auxiliary ring; 14. rotating plate; 15. bayonet; 16. fixing bolt; 17. threaded hole; 18. through hole; 19. No. 1 limit plate; 20. No. 1 guide rail; 21. transmission shaft; 22. sealing block; 23. No. 2 limit plate; 24. No. 2 guide rail; 25. air transfer port; 26. slot; 27. lower sealing plate. DETAILED DESCRIPTION
[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0018] See also Figure 1-4As shown, an air tightness detection device for filter element production includes a base 1, a water reservoir 2 is provided on the top of the base 1, a water storage chamber 4 is opened in the center of the water reservoir 2, a water outlet 5 is provided inside the water storage chamber 4, sealing plates 10 are provided on both sides of the water storage chamber 4, the sealing plates 10 are connected to the inner wall of the water reservoir 2 by fixing bolts 16, a fixing plate 12 is welded on the top of the sealing plate 10, a bayonet 15 is provided on the outside of the top of the fixing plate 12, the bayonet 15 is engaged and connected to an auxiliary ring 13, a lower sealing plate 27 is welded on the top of the auxiliary ring 13, a card slot 26 is opened on the top of the lower sealing plate 27, a No. 2 limiting plate 23 is provided inside the card slot 26, five No. 2 guide rails 24 are opened inside the No. 2 limiting plate 23, a transmission shaft 21 is inserted inside the No. 2 guide rail 24, a sealing block 22 is welded at the center of the transmission shaft 21, the other end of the transmission shaft 21 is inserted inside the transmission shaft 21, and the No. 1 guide rail 20 are five through holes inside the No. 1 limit plate 19. The top of the No. 1 limit plate 19 is connected to the rotating disk 14. The center of the rotating disk 14 is provided with a through hole 18, and the diameter of the through hole 18 is consistent with that of the air transfer port 25 in the center of the lower sealing disk 27. When the air tightness of the filter element is tested before the fixing operation, the operator inserts the two ports of the filter element into the fixing structure through the through holes 18, and then rotates the filter element into the fixed disk 12 along the position of the threaded hole 17, and then pulls up the auxiliary ring 13. At this time, the auxiliary ring 13 will move upward along the outer wall of the fixed disk 12, and fix the buckle 15 on the extension of the fixed disk 12, and then the operator rotates the rotating disk 14. At this time, driven by the rotating disk 14, the transmission shaft 21 located at the bottom of the rotating disk 14 begins to rotate along the No. 1 guide rail 20 and the No. 2 guide rail 24, and converges the sealing block 22, thereby clamping the filter element, thereby completing the fixing operation of the filter element.
[0019] The sealing disk 10 is provided with a perforation in the center, and the perforation is connected to an air inlet 11. The air inlet 11 is a perforation inside the No. 2 air duct 9. The bottom end of the No. 2 air duct 9 is connected to the No. 1 air duct 8, and the No. 1 air duct 8 is connected to the output end of the air booster pump 6. A control switch 7 is provided on one side of the air booster pump 6. The control switch 7 is connected to the air booster pump 6 circuit and is used to control the air booster pump 6. When the filter element is tested for air tightness, the operator opens the faucet at the water inlet pipe 3. At this time, water flows into the water storage chamber 4 along the water inlet pipe 3. When the water level overflows the filter element, the operator starts the control switch 7. At this time, the air booster pump 6 allows the gas to enter the No. 2 air duct 9 along the No. 1 air duct 8, and then enters the filter element through the air inlet 11. Finally, the air tightness effect of the filter element is judged by observing whether bubbles appear inside the water reservoir 2.
[0020] Working principle: before testing the air tightness of the filter element, the operator inserts the two ports of the filter element into the fixed structure through the perforation 18, and then rotates the filter element into the fixed disk 12 along the position of the threaded hole 17, and then pulls up the auxiliary ring 13. At this time, the auxiliary ring 13 will move upward along the outer wall of the fixed disk 12, and the buckle 15 will be fixed to the extension of the fixed disk 12. Then the operator rotates the rotating disk 14. At this time, driven by the rotating disk 14, the transmission shaft 21 at the bottom of the rotating disk 14 begins to move along the first guide rail 20 and the second guide rail 20. The first guide rail 24 rotates inside and contracts the sealing block 22, thereby clamping the filter element, thereby completing the fixing operation of the filter element; when the filter element is tested for air tightness, the operator opens the faucet at the water inlet pipe 3, and the water flows into the water storage chamber 4 along the water inlet pipe 3. When the water level overflows the filter element, the operator starts the control switch 7. At this time, the air booster pump 6 drives the gas along the No. 1 air guide pipe 8 into the No. 2 air guide pipe 9, and then enters the filter element through the air inlet 11. Finally, the air tightness effect of the filter element is judged by observing whether bubbles appear inside the water reservoir 2.
[0021] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.
[0022] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.
Claims
1. An air tightness detection device for filter element production, characterized in that: The invention comprises a base (1), wherein a water reservoir (2) is provided at the top of the base (1), a water reservoir cavity (4) is provided at the center of the water reservoir (2), a water outlet (5) is provided inside the water reservoir cavity (4), sealing disks (10) are provided on both sides of the water reservoir cavity (4), the sealing disk (10) is connected to the inner wall of the water reservoir (2) by fixing bolts (16), a fixing disk (12) is welded to the top of the sealing disk (10), a bayonet (15) is provided on the outside of the top of the fixing disk (12), the bayonet (15) is meshedly connected to an auxiliary ring (13), a lower sealing disk (27) is welded to the top of the auxiliary ring (13), and a bayonet groove (27) is provided at the top of the lower sealing disk (27). 6), a No. 2 limit plate (23) is provided inside the slot (26), five No. 2 guide rails (24) are opened inside the No. 2 limit plate (23), a transmission shaft (21) is inserted inside the No. 2 guide rail (24), a sealing block (22) is welded at the center of the transmission shaft (21), the other end of the transmission shaft (21) is inserted inside the transmission shaft (21), the No. 1 guide rail (20) is five through holes inside the No. 1 limit plate (19), the top end of the No. 1 limit plate (19) is connected to the rotating disk (14), the center of the rotating disk (14) is opened with a through hole (18), the diameter of the through hole (18) is consistent with the air transfer port (25) at the center of the lower sealing disk (27).
2. The air tightness detection device for filter element production according to claim 1, characterized in that: The sealing disk (10) has a hole at its center, the hole is connected to an air inlet (11), the air inlet (11) is a hole inside a No. 2 air guide tube (9), the bottom end of the No. 2 air guide tube (9) is connected to a No. 1 air guide tube (8), the No. 1 air guide tube (8) is connected to an output end of an air booster pump (6), a control switch (7) is provided on one side of the air booster pump (6), the control switch (7) is connected to a circuit of the air booster pump (6), and is used to control the air booster pump (6).
3. The air tightness detection device for filter element production according to claim 1, characterized in that: The internal perforation of the sealing disk (10) is in communication with the interior of the fixing disk (12); a threaded hole (17) is provided inside the fixing disk (12); the caliber of the threaded hole (17) is consistent with the caliber of the external thread of the filter element.
4. The air tightness detection device for filter element production according to claim 1, characterized in that: The auxiliary ring (13) has a perforation formed inside, and the aperture of the perforation is connected to the air transfer port (25).
5. The air tightness detection device for filter element production according to claim 1, characterized in that: The end points of the second guide rail (24) and the first guide rail (20) are designed as arcs, and the diameter of the transmission shaft (21) is consistent with the diameters of the first guide rail (20) and the second guide rail (24).
6. The air tightness detection device for filter element production according to claim 1, characterized in that: A water inlet pipe (3) is inserted into the water reservoir (2), and the other end of the water inlet pipe (3) is connected to a faucet.