A honeycomb ceramic filter air permeability detection equipment

Abstract

A kind of honeycomb ceramic filter air permeability detection equipment, belong to spare part detection field, including detection box, honeycomb ceramic main body, the bottom inner wall of detection box is opened with positioning groove corresponding honeycomb ceramic main body.The present application can melt and flow out the solidified resin in communicating pore by heating disc when detecting, close pore resin remains, calculate the volume ratio of open and closed pore by measuring the volume of outflow and remaining solution, distinguish effective and ineffective pore, provide accurate porosity information, at the same time, knock ceramic outer wall by the cooperation of connecting hose and guide inclined plate, speed up solution discharge, avoid stagnation, then connecting rod and annular inclined groove cooperate lifting movable disc to knock ceramic outside evenly, and blow hot air evenly through through groove, ensure that solution flows sufficiently, melt, effectively discharge solution in communicating pore, reduce residue, improve measurement result accuracy.

Description

Technical Field

[0001] This invention relates to the field of component testing technology, and in particular to a device for testing the air permeability of a honeycomb ceramic filter. Background Technology

[0002] Honeycomb ceramics are a type of porous ceramic material widely used in catalyst carriers, filters, heat insulation materials, oxide electrolytes, and other fields, especially in the field of motor vehicle exhaust treatment. In the purification of automobile exhaust, porous ceramics (especially honeycomb ceramics) are used as carriers, with their surfaces coated with catalysts made of precious metals, rare earth elements, transition metals, and other composites. These catalysts can catalytically decompose harmful components in automobile exhaust such as CO, HC, and NOx into harmless gases such as CO2, H2O, and N2, thereby meeting the national emission standards.

[0003] The porosity of honeycomb ceramics refers to the percentage of the volume of the pore portion in the total volume of the material. This parameter is one of the most important characteristics of porous ceramic materials. A higher apparent porosity usually means better air permeability, which is especially important for applications that require gas exchange. Therefore, it is necessary to test the porosity of honeycomb ceramics. Currently, the main technologies for testing the porosity of porous ceramics include the drainage method, gas adsorption method, small-angle scattering method, and thermal porosimeter method.

[0004] The drainage method (based on Archimedes' principle) is a commonly used method for detecting the apparent porosity of porous ceramics. Generally, the apparent porosity of the honeycomb ceramic sample is calculated by measuring the dry mass of the pores before immersion in water and the saturated mass of the pores after immersion in water, and then calculating the apparent porosity of the honeycomb ceramic based on the density of the impregnating liquid. However, the total pores of honeycomb ceramics are divided into effective pores and ineffective pores. Effective pores refer to the proportion of pores that are interconnected and allow fluid to flow in them, while ineffective pores refer to the proportion of pores that are not interconnected and are blocked.

[0005] In the process of water displacement measurement, when the sample is suspended in the liquid and reaches saturation mass, both effective and ineffective pores will be filled with water. Since the water displacement method calculates porosity by measuring the volume of water displaced by the sample in the water, it cannot directly distinguish between effective and ineffective pores. This will lead to the effective porosity result being too large, making it difficult to obtain high-precision porosity measurement results. Summary of the Invention

[0006] The purpose of this invention is to solve the problem that the existing technology cannot distinguish between effective and ineffective pores, resulting in an overestimation of the effective porosity in the test results. Therefore, this invention proposes a device for testing the air permeability of honeycomb ceramic filters.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A device for testing the air permeability of a honeycomb ceramic filter includes a testing chamber and a honeycomb ceramic body. The bottom inner wall of the testing chamber is provided with a positioning groove corresponding to the honeycomb ceramic body, and the inner wall of the positioning groove is provided with a collection groove.

[0009] The inner wall of the testing chamber is equipped with a heat-melting drainage component, which can melt and drain the resin in the interconnected pores while retaining the resin in the closed pores during testing, making it easier to distinguish between effective pores and ineffective pores.

[0010] The inside of the testing chamber is equipped with a knocking and clearing component, which can continuously knock on the outside of the honeycomb ceramic body during testing to accelerate the drainage efficiency of the solution in the interconnected pores at both ends.

[0011] The inner wall of the testing chamber is equipped with a moving auxiliary component, which allows for uniform tapping and blowing of hot air to the outside of the honeycomb ceramic body during testing, facilitating the full flow and melting of the solution within the pores.

[0012] Furthermore, the hot melt drainage component includes a fan, the bottom of which is fixedly installed on the top of the detection chamber. A corrugated pipe is fixedly connected to the air outlet of the fan, and a heat storage cylinder is fixedly connected to the other end of the corrugated pipe. A support plate is fixedly connected to the outer wall of the heat storage cylinder, and the two outer walls of the support plate slide against the inner wall of the detection chamber. A heating plate is fixedly connected to the bottom of the heat storage cylinder. A drive motor is symmetrically fixedly installed on the top inner wall of the detection chamber, and a drive rod is fixedly connected to the output shaft of one end of the drive motor. A threaded rod is fitted to the outer wall of the drive rod, and the outer wall of the threaded rod is threadedly connected to the inside of the support plate.

[0013] Furthermore, the inner wall of the threaded rod is provided with a rotating groove, and the threaded rod is rotatably connected to the outer wall of the drive rod through the rotating groove. The inner wall of the rotating groove is provided with a groove, and the inner wall of the groove is provided with meshing grooves at equal intervals. The outer wall of the drive rod is fixedly connected with rubber toothed racks at equal intervals corresponding to the meshing grooves, and the outer wall of the rubber toothed racks is meshed with the inner wall of the meshing grooves. The outer wall of the heat storage cylinder is symmetrically provided with a first vent hole corresponding to the knocking clear liquid component.

[0014] Furthermore, the tapping clear liquid component includes a movable disc, and the interior of the movable disc has an annular groove. The top of the movable disc has a second vent hole symmetrically extending through it, and a connecting hose is fixedly connected to the top of the movable disc corresponding to the second vent hole. The other end of the connecting hose is fixedly connected to the outer wall of the heat storage cylinder corresponding to the first vent hole. The interior of the heat storage cylinder is connected to the annular groove through the connecting hose, and a rotating ring is slidably connected to the bottom inner wall of the annular groove. A guide plate is fixedly connected to the top of the rotating ring at equal intervals.

[0015] Furthermore, the inner wall of the movable disc is provided with through grooves at equal intervals, and a striking rod is slidably connected to the inner wall of the through groove. A fixing block is fixedly connected to the end of the striking rod away from the honeycomb ceramic body, and the upper and lower outer walls of the fixing block are slidably attached to the inner wall of the annular groove. A return spring is attached to the outer wall of the striking rod.

[0016] Furthermore, one end of the reset spring is fixedly connected to the outer wall of the fixing block facing the honeycomb ceramic body, and the other end of the reset spring is fixedly connected to the inner wall of the annular groove. The striking rod forms a telescopic structure with the reset spring through the fixing block.

[0017] Furthermore, the inner wall of the rotating ring is fixedly connected with contact blocks at equal distances to the fixed blocks, and the contact blocks are in the shape of isosceles triangles.

[0018] Furthermore, the moving auxiliary component includes connecting rods, with the two connecting rods having their proximal ends fixedly connected to the outer wall of the movable disk, and a sliding rod slidably connected to the inside of the connecting rods. The bottom of the sliding rod is fixedly connected to the bottom inner wall of the detection box, and a connecting column is fixedly connected to the bottom of the drive rod. The bottom of the connecting column is rotatably connected to the bottom inner wall of the detection box. An annular groove is formed on the outer wall of the connecting column corresponding to the connecting rod, and the two connecting rods having their distal ends slidably connected to the inner wall of the annular groove.

[0019] Compared with existing technologies, the above solution has the following advantages:

[0020] 1. During testing, the honeycomb ceramic body is heated by a heating plate, causing the solidified resin in the interconnected pores to melt and flow out from the other end. The closed pores, which are not interconnected, retain the melted resin solution inside the honeycomb ceramic body. By measuring the volume of the outflowing solution and the volume of the solution remaining inside the honeycomb ceramic, the ratio of the volume of open pores to closed pores can be calculated. This allows for an accurate distinction between effective and ineffective pores, providing more accurate porosity information.

[0021] 2. During testing, the connecting hose and guide plate work together to drive multiple striking rods surrounding the outer wall of the honeycomb ceramic body to strike its outer wall. This accelerates the drainage efficiency of the solution in the interconnected pores at both ends, preventing some solution from remaining in the recessed areas of the pores, which would make it difficult or impossible to heat and flow out. This ensures the total amount of solution drained, thereby guaranteeing the accuracy of subsequent measurement results.

[0022] 3. During testing, the connecting rod and the annular inclined groove work together to continuously move the movable disc up and down on the outside of the honeycomb ceramic body. This allows for more even tapping of the outside of the honeycomb ceramic body, and the hot air is evenly blown onto the outside of the honeycomb ceramic body through multiple channels. This ensures that the solution flows and melts fully in the pores, effectively drains the solution from the interconnected pores, reduces residue, and improves the accuracy of the measurement results. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the honeycomb ceramic filter permeability testing device proposed in this invention.

[0024] Figure 2 This is a three-dimensional structural diagram of the internal structure of the testing chamber of a honeycomb ceramic filter permeability testing device proposed in this invention.

[0025] Figure 3 This is a three-dimensional structural diagram of a portion of the hot-melt drainage component of a honeycomb ceramic filter permeability testing device proposed in this invention.

[0026] Figure 4 This is a three-dimensional structural diagram of another part of the hot-melt drainage component of a honeycomb ceramic filter permeability testing device proposed in this invention.

[0027] Figure 5 This is a three-dimensional structural diagram of a portion of the knocking clear liquid component of a honeycomb ceramic filter permeability testing device proposed in this invention.

[0028] Figure 6 This is a three-dimensional structural diagram of another part of the knocking clear liquid component of the air permeability testing device for a honeycomb ceramic filter body proposed in this invention.

[0029] Figure 7 This is a three-dimensional structural diagram of a mobile auxiliary component of a honeycomb ceramic filter permeability testing device proposed in this invention.

[0030] In the diagram: 1. Detection chamber; 2. Honeycomb ceramic body; 3. Positioning groove; 4. Collection groove; 5. Hot melt drainage component; 501. Fan; 502. Corrugated pipe; 503. Heat storage cylinder; 504. Support plate; 505. Heating plate; 506. Drive motor; 507. Drive rod; 508. Threaded rod; 509. Rotary groove; 510. Groove; 511. Engaging groove; 512. Rubber toothed row; 513. First ventilation. 6. Hole; 6. Tapping liquid component; 601. Movable disc; 602. Annular groove; 603. Second vent; 604. Connecting hose; 605. Rotating ring; 606. Guide ramp; 607. Through groove; 608. Tapping rod; 609. Fixing block; 610. Return spring; 611. Contact block; 7. Moving auxiliary component; 701. Connecting rod; 702. Slide rod; 703. Connecting column; 704. Annular groove. Detailed Implementation

[0031] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0032] In the description of this invention, it should be understood that the terms "upper," "lower," "top surface," "bottom surface," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the indicated position or element must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first" and "second" are only used to distinguish an entity or operation from another entity or operation, and do not require or imply any actual relationship, order, or relative importance between these entities or operations.

[0033] Example 1:

[0034] Reference Figure 1-7 A device for testing the air permeability of a honeycomb ceramic filter includes a testing chamber 1 and a honeycomb ceramic body 2. The bottom inner wall of the testing chamber 1 is provided with a positioning groove 3 corresponding to the honeycomb ceramic body 2, and the inner wall of the positioning groove 3 is provided with a collection groove 4.

[0035] Furthermore, the inner wall of the testing chamber 1 is provided with a heat fusion drainage component 5, which includes a fan 501. The bottom of the fan 501 is fixedly installed on the top of the testing chamber 1. A corrugated pipe 502 is fixedly connected to the air outlet end of the fan 501, and a heat storage cylinder 503 is fixedly connected to the other end of the corrugated pipe 502. A support plate 504 is fixedly connected to the outer wall of the heat storage cylinder 503, and the two outer walls of the support plate 504 slide against the inner wall of the testing chamber 1. A heating plate 505 is fixedly connected to the bottom of the heat storage cylinder 503. A drive motor 506 is symmetrically fixedly installed on the top inner wall of the testing chamber 1, and a drive rod 507 is fixedly connected to the output shaft of one end of the drive motor 506. A threaded rod 508 is fitted against the outer wall of the drive rod 507, and the outer wall of the threaded rod 508 is threadedly connected to the inside of the support plate 504.

[0036] In this embodiment, before placing the honeycomb ceramic body 2 into the testing chamber 1, the honeycomb ceramic body 2 itself is first accurately weighed and its initial weight is recorded. Then, one end of the honeycomb ceramic body 2 is immersed in a suitable solution, such as a low-viscosity resin solution, to ensure that the resin solution can completely enter the pores of the honeycomb ceramic body 2 from one end, while the other end is flush with the solution level. The solution is left to solidify in the pores to fix the pore structure. Then, before it is fully hardened, the honeycomb ceramic body 2 is removed from the solution. This usually requires waiting at room temperature for a period of time to allow the resin to partially solidify so that it can maintain its shape and not flow easily. Subsequently, the excess solidified resin in the pores is removed, and the total weight of the resin remaining in the pores is measured.

[0037] Next, the honeycomb ceramic body 2 can be placed vertically in the positioning groove 3 inside the detection chamber 1, with the end of the honeycomb ceramic body 2 immersed in the solution facing upwards. Then, a support plate 504 is fixedly connected to the outer wall of the heat storage cylinder 503, and the two outer walls of the support plate 504 slide against the inner wall of the detection chamber 1. A drive rod 507 is fixedly connected to one end of the output shaft of the drive motor 506. At the same time, a threaded rod 508 is fitted against the outer wall of the drive rod 507, and the outer wall of the threaded rod 508 is threadedly connected to the inside of the support plate 504. A rotating groove 509 is opened on the inner wall of the threaded rod 508, and the threaded rod 508 rotates through the groove. The groove 509 is rotatably connected to the outer wall of the drive rod 507. The inner wall of the groove 509 is provided with a groove 510, and the inner wall of the groove 510 is provided with meshing grooves 511 at equal intervals. The outer wall of the drive rod 507 is fixedly connected with rubber toothed racks 512 at equal intervals corresponding to the meshing grooves 511. The outer wall of the rubber toothed rack 512 is meshed with the inner wall of the meshing groove 511. Thus, the drive rod 507 can be rotated by the drive motor 506. Since the rubber toothed rack 512 meshes with the meshing groove 511 of the threaded rod 508, it can synchronously drive the threaded rod 508 to rotate, thereby using the thread to drive the support plate 504 to descend.

[0038] Next, a heating plate 505 is fixedly connected to the bottom of the heat storage cylinder 503. When the support plate 504 drives the heat storage cylinder 503 to descend, the heating plate 505 at the bottom of the heat storage cylinder 503 will first come into contact with and press against the top of the honeycomb ceramic body 2. Then, a corrugated pipe 502 is fixedly connected to the air outlet of the fan 501, and the other end of the corrugated pipe 502 is fixedly connected to the heat storage cylinder 503. This allows the fan 501 to send hot air into the heat storage cylinder 503 through the corrugated pipe 502 to heat the heating plate 505. The heating plate 505, which is in contact with the honeycomb ceramic body 2, can then heat and raise its temperature. As the temperature of the honeycomb ceramic body 2 itself rises, the solidified resin in its pores will melt. At this time, the solidified resin in the interconnected pores at both ends of the honeycomb ceramic body 2 will melt and flow out from the bottom of the honeycomb ceramic body 2 under the influence of gravity and into the collection tank 4.

[0039] Next, the resin solution inside the closed pores will remain inside the honeycomb ceramic body 2 because it cannot flow out from the other end. After heating is completed, the resin solution inside the honeycomb ceramic body 2 will be removed. At this time, the total volume of the open pores of the honeycomb ceramic body 2 and the volume of the closed pores at one end of the honeycomb ceramic body 2 can be obtained. Then, the above steps are repeated to immerse the other end of the honeycomb ceramic body 2 into the resin solution, and the volume of the closed pores at both ends of the honeycomb ceramic body 2 can be obtained. Thus, the ratio of the volume of open pores to closed pores can be calculated, which can accurately distinguish between effective pores and ineffective pores and provide more accurate porosity information.

[0040] Furthermore, the interior of the testing chamber 1 is equipped with a knocking clear liquid component 6, which includes a movable disc 601. The movable disc 601 has an annular groove 602 inside. The top of the movable disc 601 has a second vent hole 603 symmetrically through it. A connecting hose 604 is fixedly connected to the top of the movable disc 601 corresponding to the second vent hole 603. The other end of the connecting hose 604 is fixedly connected to the outer wall of the heat storage cylinder 503 corresponding to the first vent hole 513. The interior of the heat storage cylinder 503 is connected to the annular groove 602 through the connecting hose 604. A rotating ring 605 is slidably connected to the bottom inner wall of the annular groove 602. A guide plate 606 is fixedly connected to the top of the rotating ring 605 at equal intervals.

[0041] In this embodiment, since each interconnected pore is not a smooth, straight pore, the entire pore channel may have uneven points, making it difficult or impossible to melt and discharge. Therefore, based on this, an annular groove 602 is provided inside the movable disk 601, and a second vent hole 603 is symmetrically provided through the top of the movable disk 601. A connecting hose 604 is fixedly connected to the top of the movable disk 601 corresponding to the second vent hole 603. At the same time, the other end of the connecting hose 604 is fixedly connected to the outer wall of the heat storage cylinder 503 corresponding to the first vent hole 513. The interior of the heat storage cylinder 503 is connected to the annular groove 602 through the connecting hose 604, so that when the fan 501 heats the heating disk 505, the hot air can be delivered into the annular groove 602.

[0042] At this time, a rotating ring 605 is slidably connected to the bottom inner wall of the annular groove 602, and a guide ramp 606 is fixedly connected to the top of the rotating ring 605 at equal intervals. So when hot air is blown into the annular groove 602, the shape of the guide ramp 606 can be used to drive the rotating ring 605 to rotate by wind power. At this time, through slots 607 are equidistantly opened through the inner wall of the movable plate 601, and a striking rod 608 is slidably connected to the inner wall of the through slot 607. A fixing block 609 is fixedly connected to the end of the striking rod 608 away from the honeycomb ceramic body 2. At the same time, the upper and lower outer walls of the fixing block 609 are in contact with the inner wall of the annular groove 602. The striking rod 608 is slidable, and a return spring 610 is attached to the outer wall of the striking rod 608. The inner wall of the rotating ring 605 is fixedly connected to the fixing block 609 at equal distances. The shape of the contact block 611 is an isosceles triangle. When the rotating ring 605 rotates, it can drive multiple contact blocks 611 to move in a circle. Then, the inclined surface can guide and push the fixing block 609, so that the fixing block 609 will drive the striking rod 608 to move and collide in the direction of the honeycomb ceramic body 2. This will accelerate the drainage efficiency of the solution in the interconnected pores at both ends and prevent some solution from being stuck in the recessed position in the pores.

[0043] Furthermore, since the heating plate 505 is pressed and attached to the top of the honeycomb ceramic body 2, it can prevent the solution in the closed pores from splashing into the interconnecting pores during the impact and vibration of the honeycomb ceramic body 2, thus ensuring the accuracy of the results.

[0044] Furthermore, the inner wall of the detection chamber 1 is provided with a moving auxiliary component 7, which includes a connecting rod 701. The two connecting rods 701 are fixedly connected to the outer wall of the movable disk 601 at their near ends. A sliding rod 702 is slidably connected to the inside of the connecting rod 701. The bottom of the sliding rod 702 is fixedly connected to the bottom inner wall of the detection chamber 1. A connecting column 703 is fixedly connected to the bottom of the drive rod 507. The bottom of the connecting column 703 is rotatably connected to the bottom inner wall of the detection chamber 1. An annular inclined groove 704 is opened on the outer wall of the connecting column 703 corresponding to the connecting rod 701. The two connecting rods 701 are slidably connected to the inner wall of the annular inclined groove 704 at their far ends.

[0045] In this embodiment, the rubber toothed rack 512 engages with the meshing groove 511 of the threaded rod 508, thereby synchronously driving the threaded rod 508 to rotate. When the heating plate 505 at the bottom of the heat storage cylinder 503 contacts and is pressed and fixed to the top of the honeycomb ceramic body 2, the rubber toothed rack 512 engages with the meshing groove 511 of the threaded rod 508, causing the pressure to gradually increase. When the heating plate 505 contacts and is pressed to a certain extent, the rubber toothed rack 512 will deform and, through the reserved groove 510, the rubber toothed rack 512 will skip teeth. That is, while maintaining the contact and pressing between the heating plate 505 and the top of the honeycomb ceramic body 2, the drive motor 506 can still drive the drive rod 507 to continue rotating.

[0046] At this time, the two connecting rods 701 are fixedly connected to the outer wall of the movable disk 601 at their close ends, and the connecting rods 701 are slidably connected to the inner wall of the sliding rods 702. The bottom of the drive rod 507 is fixedly connected to the connecting post 703. At the same time, the outer wall of the connecting post 703 is provided with an annular inclined groove 704 corresponding to the connecting rods 701, and the two connecting rods 701 are slidably connected to the inner wall of the annular inclined groove 704 at their far ends. Thus, the drive rod 507 can drive the two connecting posts 703 to rotate. With the cooperation of the connecting rods 701 and the annular inclined groove 704, the movable disk 601 moves up and down on the outside of the honeycomb ceramic body 2. This allows for more even tapping of the outside of the honeycomb ceramic body 2 and avoids continuous tapping of the same position, which would damage the surface of the honeycomb ceramic body 2.

[0047] Furthermore, the inner wall of the through groove 607 is slidably connected to the striking rod 608, but the inner wall of the through groove 607 and the outer wall of the striking rod 608 are not completely sealed, so that the hot air entering the movable plate 601 can be ejected from the through groove 607. Thus, during the lifting and lowering of the movable plate 601, the hot air is evenly blown to the outside of the honeycomb ceramic body 2 through multiple through grooves 607, ensuring that the solution flows and melts fully in the pores, more effectively discharging the solution in the interconnected pores, reducing the amount of residue, and thus improving the accuracy of the measurement results.

[0048] The working principle of this invention is as follows: First, after weighing the total weight of the honeycomb ceramic body 2 before immersion in the liquid and after the resin is retained in the pores, the honeycomb ceramic body 2 is placed in the positioning groove 3 in the detection box 1, placed vertically, with the end of the honeycomb ceramic body 2 immersed in the solution facing upwards. Then, the drive motor 506 drives the drive rod 507 to rotate. Since the rubber tooth row 512 meshes with the meshing groove 511 of the threaded rod 508, the threaded rod 508 can be driven to rotate synchronously, thereby using the thread to drive the support plate 504 to descend.

[0049] At this time, the heating plate 505 located at the bottom of the heat storage cylinder 503 will come into contact with and be pressed and fixed to the top of the honeycomb ceramic body 2. Then, the hot air is sent into the heat storage cylinder 503 through the corrugated pipe 502 by the fan 501 to heat the heating plate 505. The heating plate 505, which is in contact with the honeycomb ceramic body 2, can be used to heat and raise the temperature. At this time, as the temperature of the honeycomb ceramic body 2 itself rises, the solidified resin in its pores will melt. At this time, the solidified resin in the pores connected at both ends of the honeycomb ceramic body 2 will melt and flow out from the bottom of the honeycomb ceramic body 2 under the influence of gravity and flow into the collection tank 4.

[0050] Next, the resin solution inside the closed pores will remain inside the honeycomb ceramic body 2 because it cannot flow out from the other end. After heating is completed, the resin solution inside the honeycomb ceramic body 2 will be removed. At this time, the total volume of the open pores of the honeycomb ceramic body 2 and the volume of the closed pores at one end of the honeycomb ceramic body 2 can be obtained. Then, the above steps are repeated to immerse the other end of the honeycomb ceramic body 2 into the resin solution. The volume of the closed pores at both ends of the honeycomb ceramic body 2 can be obtained. Thus, the ratio of the volume of open pores to closed pores can be calculated, and the effective pores and ineffective pores can be accurately distinguished.

[0051] Next, when the fan 501 heats the heating plate 505, the hot air can be delivered into the annular groove 602. When the hot air is blown into the annular groove 602, the shape of the guide plate 606 can be used to drive the rotating ring 605 to rotate by the wind. When the rotating ring 605 rotates, it can simultaneously drive multiple contact blocks 611 to move in a circle. Then, the inclined surface can be used to guide and push the fixed block 609, so that the fixed block 609 will drive the striking rod 608 to move and collide in the direction of the honeycomb ceramic body 2, thereby accelerating the solution discharge efficiency in the interconnected pores at both ends and avoiding some solution from remaining in the recessed position in the pores.

[0052] Next, the drive rod 507 drives the two connecting columns 703 to rotate. Then, with the cooperation of the connecting rod 701 and the annular inclined groove 704, the movable plate 601 moves up and down on the outside of the honeycomb ceramic body 2. This allows for more even tapping of the outside of the honeycomb ceramic body 2 and avoids continuous tapping of the same position, which could damage the surface of the honeycomb ceramic body 2. At the same time, the inner wall of the through groove 607 and the outer wall of the tapping rod 608 are not completely sealed, allowing the hot air entering the movable plate 601 to be ejected from the through groove 607. Thus, during the lifting and lowering of the movable plate 601, the hot air is evenly blown onto the outside of the honeycomb ceramic body 2 through multiple through grooves 607, ensuring the full flow and melting of the solution in the pores and more effectively discharging the solution from the interconnected pores, reducing the amount of residue.

[0053] While the present invention has been disclosed above, it is not limited thereto. Those skilled in the art can make various modifications and alterations without departing from the spirit and scope of the invention; therefore, the scope of protection of the present invention should be determined by the scope defined in the claims.

Claims

1. A honeycomb ceramic filter body air permeability detection device, comprising a detection box (1) and a honeycomb ceramic main body (2), characterized in that, The bottom inner wall of the detection box (1) is provided with a positioning groove (3) corresponding to the honeycomb ceramic body (2), and the inner wall of the positioning groove (3) is provided with a collection groove (4); The inner wall of the detection box (1) is provided with a hot melting liquid discharge component (5) to melt and discharge the resin in the communicating pores and retain the resin in the closed pores during detection; The inside of the detection box (1) is provided with a knocking liquid cleaning component (6) to continuously knock the outside of the honeycomb ceramic body (2) to accelerate the solution discharge efficiency in the communicating pores at both ends; The inner wall of the detection box (1) is provided with a moving auxiliary component (7) to uniformly knock and uniformly blow hot air to the outside of the honeycomb ceramic body (2), which is beneficial to the full flow and melting of the solution in the pores; The hot melting liquid discharge component (5) comprises a fan (501), and the bottom of the fan (501) is fixedly installed on the top of the detection box (1); the air outlet end of the fan (501) is fixedly connected with a bellows (502), the other end of the bellows (502) is fixedly connected with a heat storage cylinder (503), the outer wall of the heat storage cylinder (503) is fixedly connected with a support plate (504), the outer walls of the two sides of the support plate (504) slide with the inner wall of the detection box (1), the bottom of the heat storage cylinder (503) is fixedly connected with a heating disc (505), the top inner wall of the detection box (1) is symmetrically fixedly installed with a driving motor (506), one end output shaft of the driving motor (506) is fixedly connected with a driving rod (507), the outer wall of the driving rod (507) is provided with a threaded rod (508), and the outer wall of the threaded rod (508) is threadedly connected with the inside of the support plate (504); The inner wall of the threaded rod (508) is provided with a rotating groove (509), and the threaded rod (508) is rotatably connected with the outer wall of the driving rod (507) through the rotating groove (509); the inner wall of the rotating groove (509) is provided with a recess (510), and the inner wall of the recess (510) is equidistantly provided with a meshing groove (511); the outer wall of the driving rod (507) is fixedly connected with a rubber tooth row (512) at equal intervals corresponding to the meshing groove (511), and the outer wall of the rubber tooth row (512) is meshingly connected with the inner wall of the meshing groove (511); the outer wall of the heat storage cylinder (503) is symmetrically provided with a first air hole (513) corresponding to the knocking liquid cleaning component (6). The knocking liquid part (6) comprises a movable disc (601), and a ring groove (602) is arranged in the movable disc (601); a second air hole (603) is symmetrically arranged on the top of the movable disc (601); a connecting hose (604) is fixedly connected to the top of the movable disc (601) and corresponds to the second air hole (603); the other end of the connecting hose (604) is fixedly connected to the outer wall of the heat storage cylinder (503) and corresponds to the first air hole (513); the inner part of the heat storage cylinder (503) is connected with the ring groove (602) through the connecting hose (604); and a rotating ring (605) is slidably connected to the bottom inner wall of the ring groove (602). A through groove (607) is symmetrically arranged on the inner wall of the movable disc (601); a knocking rod (608) is slidably connected to the inner wall of the through groove (607); a fixed block (609) is fixedly connected to the end of the knocking rod (608) away from the honeycomb ceramic body (2); the upper and lower outer walls of the fixed block (609) are slidably connected to the inner wall of the ring groove (602); and a return spring (610) is arranged on the outer wall of the knocking rod (608). The moving auxiliary part (7) comprises a connecting rod (701), and two connecting rods (701) are fixedly connected to the outer wall of the movable disc (601) at one end; a sliding rod (702) is slidably connected to the inner part of the connecting rod (701); the bottom of the sliding rod (702) is fixedly connected to the bottom inner wall of the detection box (1); a connecting column (703) is fixedly connected to the bottom of the driving rod (507); the bottom of the connecting column (703) is rotatably connected to the bottom inner wall of the detection box (1); a ring-shaped inclined groove (704) is arranged on the outer wall of the connecting column (703) and corresponds to the connecting rod (701); and the other ends of the two connecting rods (701) are slidably connected to the inner wall of the ring-shaped inclined groove (704).

2. The apparatus according to claim 1, wherein One end of the return spring (610) is fixedly connected to the outer wall of the fixed block (609) on the side facing the honeycomb ceramic body (2); the other end of the return spring (610) is fixedly connected to the inner wall of the ring groove (602); and the knocking rod (608), the fixed block (609) and the return spring (610) constitute a telescopic structure.

3. The apparatus according to claim 2, wherein The inner wall of the rotating ring (605) is fixedly connected with a touch block (611) at equal distances and corresponds to the fixed block (609); and the touch block (611) has an isosceles triangle shape.

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