Air filtering material tester

Abstract

The utility model discloses an air filtering material tester, and relates to the technical field of filtering material testing. The tester comprises a tester shell, a sample clamping unit and a powder adding unit, a testing bin and a powder adding bin are formed in one side of the tester shell, the sample clamping unit is assembled in the testing bin, the powder adding unit is assembled in the powder adding bin, the sample clamping unit is composed of an upper clamping seat, a driving seat, a connecting disc and a lower clamping seat, and the driving seat is connected with the upper clamping seat. The upper clamping seat is fixedly mounted on the top wall of the test bin; according to the utility model, the guide block is driven to slide horizontally, and the guide block enables the lower clamping seat to move horizontally through the Z-shaped connecting rod and the fixing seat, so that the lower clamping seat can be moved out of the test bin or enter the test bin, and therefore, the automatic delivery and automatic feeding of the lower clamping seat can be conveniently realized; furthermore, a tester can conveniently fix the air filtering material sample on the lower clamping seat or take out the tested sample, so that the convenience of fixing or taking out the air filtering material sample is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of filter material testing, in particular to an air filter material testing instrument. Background Art

[0002] Air filter material tester is a professional testing equipment used to measure and evaluate the filtration efficiency of air filter materials. With the increasing awareness of environmental protection, air filter materials are increasingly used in various fields, such as household air purifiers, industrial dust removal equipment, medical protective equipment, etc. Therefore, it is particularly important to accurately and efficiently test the filtration efficiency of air filter materials.

[0003] However, the air filter material tester in the prior art still has some defects:

[0004] 1. When the sample clamping device of the air filter material tester is in use, the test personnel usually fix and remove the sample in the test chamber. Due to the small space in the test chamber, the fixation and removal of the sample is not convenient;

[0005] 2. At the same time, the air filter material tester usually needs to add test dust before testing. The added test dust is manually scraped flat by the tester, which makes the scraping of the dust inconvenient and the scraping effect of the test dust is poor. Utility Model Content

[0006] In order to solve the problem that it is inconvenient for testers to fix or remove samples and it is inconvenient to scrape test dust; the purpose of the utility model is to provide an air filter material tester.

[0007] In order to solve the above technical problems, the utility model adopts the following technical solutions: an air filter material tester, comprising a tester housing, a sample clamping unit and a powder adding unit, a test chamber and a powder adding chamber are respectively opened on one side of the tester housing, the sample clamping unit is assembled in the test chamber, and the powder adding unit is assembled in the powder adding chamber, the sample clamping unit is composed of an upper clamping seat, a driving seat, a connecting plate and a lower clamping seat, the upper clamping seat is fixedly mounted on the top wall of the test chamber, the driving seat is fixedly mounted on the bottom wall of the test chamber, the connecting plate is fixedly mounted on the upper surface of the driving seat, and the lower surface of the lower clamping seat is in active contact with the upper surface of the connecting plate;

[0008] The powder adding unit is composed of a powder adding device seat and a powder box, wherein the powder adding device seat is fixedly mounted on the side wall of the powder adding bin, and the powder box is slidably mounted on the powder adding device seat;

[0009] The test chamber is provided with an automatic discharge mechanism, and the powder box is provided with a powder scraping assembly;

[0010] The automatic bin exit mechanism includes two Z-shaped connecting rods, fixed seats are fixedly installed on both sides of the lower clamping seat, grooves are provided on the lower surfaces of the two fixed seats, one end of the Z-shaped connecting rod is in movably contact with the inner wall of the groove, two guide grooves are provided on the side wall of the test bin, guide blocks are slidably installed at one end of the two guide grooves, one end of the Z-shaped connecting rod away from the groove is fixedly connected to one side of the guide block, two lead screws are rotatably installed in the test bin, one lead screw passes through a guide groove and is threadedly rotatably connected to a guide block.

[0011] Preferably, a rotating rod is rotatably provided on the other side of the tester housing, first bevel gears are fixedly installed at both ends of the rotating rod, and second bevel gears are fixedly installed at one end of the two lead screws, wherein one of the first bevel gears and one of the second bevel gears are meshed with each other.

[0012] Preferably, a driving motor is fixedly provided on the other side of the tester housing, and a driving output end of the driving motor is fixedly connected to one end of the rotating rod.

[0013] Preferably, the powder scraping assembly includes an equipment plate, a scraper is fixedly installed on the lower surface of the equipment plate, two slide grooves are provided on the side wall of the powder box, a slider is slidably installed at one end of the two slide grooves, a fixed shaft is fixedly installed between the two sliders, a movable groove is provided on the equipment plate, and the fixed shaft passes through the movable groove and is in movable contact with the inner wall of the movable groove.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. In the utility model, by driving the guide block to slide horizontally, the guide block moves the lower clamping seat horizontally through the Z-shaped connecting rod and the fixed seat, so that the lower clamping seat can be moved out of the test chamber or into the test chamber, thereby conveniently realizing the automatic exit and entry of the lower clamping seat, and then facilitating the test personnel to fix the air filter material sample on the lower clamping seat or take out the tested sample, thereby improving the convenience of fixing or taking out the air filter material sample.

[0016] 2. In the utility model, the scraper is manually pushed to move horizontally while adjusting the angle and height of the scraper. The scraper scrapes the test dust in the powder box flat during the horizontal movement, thereby conveniently realizing the automatic scraping of the test dust, thereby effectively improving the convenience of the dust scraping operation, and effectively improving the effect of the test dust scraping. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] 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 work.

[0018] Figure 1 The utility model is a schematic diagram of the overall structure of an air filter material tester.

[0019] Figure 2 This is another overall structural schematic diagram of an air filter material tester of the utility model.

[0020] Figure 3 It is a schematic diagram of the opening state of the first door and the second door of the utility model.

[0021] Figure 4 It is a schematic diagram of the lower clamping seat of the utility model in the removed state.

[0022] Figure 5 It is a schematic diagram of the connection between the automatic bin ejection mechanism and the lower clamping seat of the utility model.

[0023] Figure 6 It is a schematic diagram of the connection between the powder scraping assembly, the powder box and the powder adding equipment seat of the utility model.

[0024] Figure 7 This is a schematic diagram of the connection between the powder scraping assembly and the powder box of the utility model.

[0025] Figure 8 It is a schematic diagram of the separation of the sliding block and the fixed shaft of the utility model.

[0026] In the figure: 1. tester housing; 11. test chamber; 12. powder adding chamber; 13. first chamber door; 14. second chamber door; 2. sample clamping unit; 21. upper clamping seat; 22. driving seat; 23. connecting plate; 24. lower clamping seat; 3. powder adding unit; 31. powder adding equipment seat; 32. powder box; 4. automatic out-of-bin mechanism; 41. Z-type connecting rod; 42. fixed seat; 43. groove; 44. guide groove; 45. guide block; 46. lead screw; 47. rotating rod; 48. support plate; 49. first bevel gear; 5. second bevel gear; 51. driving motor; 52. fixed block; 6. powder scraping assembly; 61. equipment plate; 62. scraper; 63. push-pull plate; 64. slide groove; 65. slider; 66. fixed shaft; 67. movable groove. DETAILED DESCRIPTION

[0027] 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.

[0028] Example: Figure 1-8 As shown, the utility model provides an air filter material tester, including a tester housing 1, a sample clamping unit 2 and a powder adding unit 3. A test chamber 11 and a powder adding chamber 12 are respectively opened on one side of the tester housing 1. The sample clamping unit 2 is assembled in the test chamber 11, and the powder adding unit 3 is assembled in the powder adding chamber 12. The sample clamping unit 2 is composed of an upper clamping seat 21, a driving seat 22, a connecting plate 23 and a lower clamping seat 24. The upper clamping seat 21 is fixedly mounted on the top wall of the test chamber 11, the driving seat 22 is fixedly mounted on the bottom wall of the test chamber 11, and the connecting plate 23 is fixedly mounted on the driving seat The upper surface of the lower clamping seat 22, the lower surface of the lower clamping seat 24 and the upper surface of the connecting plate 23 are in active contact. The upper clamping seat 21, the driving seat 22, the connecting plate 23 and the lower clamping seat 24 form a sample clamping unit 2. When the cut air filter material sample (such as activated carbon filter cotton, glass fiber filter cotton, etc.) is fixed above the lower clamping seat 24, the lifting device in the driving seat 22 starts to work, and the lower clamping seat 24 is raised through the connecting plate 23, and the lower clamping seat 24 makes the sample rise synchronously, so that the sample contacts the lower surface of the upper clamping seat 21. This is an existing technology and will not be described in detail here.

[0029] The powder adding unit 3 is composed of a powder adding device seat 31 and a powder box 32. The powder adding device seat 31 is fixedly mounted on the side wall of the powder adding bin 12, and the powder box 32 is slidably mounted on the powder adding device seat 31. Before the sample test operation, the powder box 32 can store test dust for the air filter material sample test. This is a prior art and will not be described in detail here.

[0030] An automatic bin exit mechanism 4 is provided in the test bin 11, and a powder scraping assembly 6 is provided in the powder box 32. By providing the automatic bin exit mechanism 4 and the powder scraping assembly 6, the automatic bin exit mechanism 4 enables the lower clamping seat 24 to move horizontally to enter the test bin 11 or move out of the test bin 11, so that it is convenient for the tester to place or take out the air filter material sample. The powder scraping assembly 6 can facilitate the tester to scrape the test dust in the powder box 32 flat, thereby improving the convenience of scraping the test dust flat;

[0031] The automatic warehouse discharge mechanism 4 includes two Z-shaped connecting rods 41, and fixed seats 42 are fixedly installed on both sides of the lower clamping seat 24. The lower surfaces of the two fixed seats 42 are provided with grooves 43, and one end of the Z-shaped connecting rod 41 is in active contact with the inner wall of the groove 43. Two guide grooves 44 are provided on the side walls of the test chamber 11, and guide blocks 45 are slidably installed at one end of the two guide grooves 44. The end of the Z-shaped connecting rod 41 away from the groove 43 is fixedly connected to one side of the guide block 45, and two lead screws 46 are rotatably installed in the test chamber 11, and one lead screw 46 passes through a guide groove 44 and is threadedly rotatably connected to a guide block 45. By setting the groove 43, when the lifting equipment in the driving seat 22 raises the lower clamping seat 24 through the connecting plate 23, the end of the Z-shaped connecting rod 41 is disengaged from the groove 43, and will not affect the rise of the lower clamping seat 24.

[0032] The side wall of the test bin 11 is hingedly installed with two first bin doors 13, and the side wall of the powder adding bin 12 is hingedly installed with a second bin door 14. By setting the first bin door 13 and the second bin door 14, the first bin door 13 and the second bin door 14 in the closed state can prevent external flying dust from entering the test bin 11 and the powder adding bin 12.

[0033] A rotating rod 47 is rotatably provided on the other side of the tester housing 1, and first bevel gears 49 are fixedly installed at both ends of the rotating rod 47. Second bevel gears 5 are fixedly installed at one end of two lead screws 46, and one first bevel gear 49 and a second bevel gear 5 are meshed with each other. By driving the rotating rod 47 to rotate, the rotating rod 47 can make the two lead screws 46 rotate synchronously in the same direction through the two first bevel gears 49 and the two second bevel gears 5.

[0034] Two support plates 48 are fixedly mounted on the other side of the tester housing 1 . Both ends of the rotating rod 47 are rotatably connected to the two support plates 48 . By providing the support plates 48 , the support plates 48 support the rotating rod 47 .

[0035] A driving motor 51 is fixedly provided on the other side of the tester housing 1 , and a driving output end of the driving motor 51 is fixedly connected to one end of the rotating rod 47 . By turning on the driving motor 51 , the driving shaft of the driving motor 51 can rotate the rotating rod 47 .

[0036] A fixing block 52 is fixedly installed on the outer wall of the driving motor 51 , and one side of the fixing block 52 is fixedly connected to the other side of the tester housing 1 . By setting the fixing block 52 , the fixing block 52 supports and fixes the driving motor 51 , thereby improving the stability of the driving motor 51 .

[0037] The powder scraping assembly 6 includes an equipment plate 61, a scraper 62 is fixedly installed on the lower surface of the equipment plate 61, two slide grooves 64 are provided on the side wall of the powder box 32, a slider 65 is slidably installed at one end of the two slide grooves 64, a fixed shaft 66 is fixedly installed between the two sliders 65, a movable groove 67 is provided on the equipment plate 61, the fixed shaft 66 passes through the movable groove 67 and is in movable contact with the inner wall of the movable groove 67, by setting the scraper 62, when the scraper 62 moves horizontally, the test dust in the powder box 32 can be scraped flat, and by setting the equipment plate 61 , a slide groove 64, a slider 65, a fixed shaft 66 and a movable groove 67. The slider 65 slides horizontally along the inner wall of the slide groove 64. The slider 65 keeps the equipment plate 61 and the scraper 62 moving horizontally through the fixed shaft 66. The movable groove 67 can adjust the distance between the bottom end of the scraper 62 and the bottom wall of the powder box 32, so as to facilitate the scraping operation of test dust at different heights in the powder box 32 (before testing the air filter material sample, the amount of test dust added is different according to the test requirements, so the height of the test dust accumulated in the powder box 32 is different).

[0038] A push-pull plate 63 is fixedly installed on one side of the equipment plate 61 away from the scraper plate 62. The push-pull plate 63 is provided to facilitate operators to push the scraper plate 62 to move horizontally.

[0039] Working principle: before testing the cut air filter material sample, the tester first opens the two first compartment doors 13, and then starts the drive motor 51. The drive shaft of the drive motor 51 rotates the rotating rod 47. The rotating rod 47 rotates the two lead screws 46 synchronously in the same direction through the two first bevel gears 49 and the two second bevel gears 5. The two lead screws 46 drive the two guide blocks 45 to slide horizontally along the inner walls of the corresponding guide grooves 44. The two guide blocks 45 move the lower clamping seat 24 horizontally through the two Z-shaped connecting rods 41 and the two fixed seats 42. At this time, the lower clamping seat 24 is moved out of the test compartment 11, thereby facilitating the automatic exit of the lower clamping seat 24, and then facilitating the tester to fix the air filter material sample on the lower clamping seat 24, thereby improving the convenience of fixing the air filter material sample.

[0040] Subsequently, the tester opens the second compartment door 14, introduces the weighed test dust into the powder box 32, and then manually pulls the push-pull plate 63 and moves the push-pull plate 63 horizontally. At the same time, through the cooperation of the fixed shaft 66 and the movable groove 67, the angle of the scraper 62 and the distance between the bottom end of the scraper 62 and the bottom wall of the powder box 32 are changed, so that the bottom end of the scraper 62 is aligned with the upper part of the test dust. The scraper 62 scrapes the test dust in the powder box 32 flat during the horizontal movement, thereby conveniently realizing the automatic scraping of the test dust, thereby effectively improving the convenience of the dust scraping operation, and effectively improving the effect of the test dust scraping.

[0041] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. An air filter material tester, comprising a tester housing (1), a sample clamping unit (2) and a powder adding unit (3), wherein a test chamber (11) and a powder adding chamber (12) are respectively provided on one side of the tester housing (1), the sample clamping unit (2) is assembled in the test chamber (11), and the powder adding unit (3) is assembled in the powder adding chamber (12), characterized in that: The sample clamping unit (2) is composed of an upper clamping seat (21), a driving seat (22), a connecting plate (23) and a lower clamping seat (24); the upper clamping seat (21) is fixedly mounted on the top wall of the test chamber (11); the driving seat (22) is fixedly mounted on the bottom wall of the test chamber (11); the connecting plate (23) is fixedly mounted on the upper surface of the driving seat (22); and the lower surface of the lower clamping seat (24) is in movable contact with the upper surface of the connecting plate (23); The powder adding unit (3) is composed of a powder adding device seat (31) and a powder box (32), wherein the powder adding device seat (31) is fixedly mounted on the side wall of the powder adding bin (12), and the powder box (32) is slidably mounted on the powder adding device seat (31); The test chamber (11) is provided with an automatic discharging mechanism (4), and the powder box (32) is provided with a powder scraping assembly (6); The automatic bin ejection mechanism (4) comprises two Z-shaped connecting rods (41), fixed seats (42) are fixedly installed on both sides of the lower clamping seat (24), grooves (43) are provided on the lower surfaces of the two fixed seats (42), one end of the Z-shaped connecting rod (41) is in movably contact with the inner wall of the groove (43), two guide grooves (44) are provided on the side wall of the test bin (11), guide blocks (45) are slidably installed at one end of the two guide grooves (44), one end of the Z-shaped connecting rod (41) away from the groove (43) is fixedly connected to one side of the guide block (45), and two lead screws (46) are rotatably installed in the test bin (11), one of the lead screws (46) passes through a guide groove (44) and is threadedly rotatably connected to a guide block (45).

2. An air filter material tester as claimed in claim 1, characterized in that: The side wall of the test bin (11) is hingedly mounted with two first bin doors (13), and the side wall of the powder adding bin (12) is hingedly mounted with a second bin door (14).

3. An air filter material tester as claimed in claim 1, characterized in that: A rotating rod (47) is rotatably provided on the other side of the tester housing (1), and first bevel gears (49) are fixedly mounted on both ends of the rotating rod (47). Second bevel gears (5) are fixedly mounted on one end of the two lead screws (46), and one of the first bevel gears (49) and one of the second bevel gears (5) are meshed with each other.

4. An air filter material tester as claimed in claim 3, characterized in that: Two support plates (48) are fixedly mounted on the other side of the tester housing (1), and the two ends of the rotating rod (47) are rotatably connected to the two support plates (48).

5. An air filter material tester as claimed in claim 3, characterized in that: A driving motor (51) is fixedly provided on the other side of the tester housing (1), and a driving output end of the driving motor (51) is fixedly connected to one end of a rotating rod (47).

6. An air filter material tester as claimed in claim 5, characterized in that: A fixing block (52) is fixedly mounted on the outer wall of the driving motor (51), and one side of the fixing block (52) is fixedly connected to the other side of the tester housing (1).

7. An air filter material tester as claimed in claim 1, characterized in that: The powder scraping assembly (6) comprises a device plate (61), a scraper plate (62) is fixedly mounted on the lower surface of the device plate (61), two slide grooves (64) are provided on the side wall of the powder box (32), a slider (65) is slidably mounted at one end of the two slide grooves (64), a fixed shaft (66) is fixedly mounted between the two sliders (65), a movable groove (67) is provided on the device plate (61), and the fixed shaft (66) passes through the movable groove (67) and is in movable contact with the inner wall of the movable groove (67).

8. An air filter material tester as claimed in claim 7, characterized in that: A push-pull plate (63) is fixedly mounted on one side of the equipment plate (61) away from the scraper plate (62).

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