CN212807968U

CN212807968U - Testing arrangement of coating air permeability

Info

Publication number: CN212807968U
Application number: CN202021481737.7U
Authority: CN
Inventors: 黄清根; 王正青; 李扬勇
Original assignee: Shanghai Ouchang New Material Technology Co ltd
Current assignee: Shanghai Ouchang New Material Technology Co ltd
Priority date: 2020-07-24
Filing date: 2020-07-24
Publication date: 2021-03-26
Anticipated expiration: 2030-07-24

Abstract

The utility model discloses a testing arrangement of coating permeability, including the test box, only have baffle one and baffle two from a left side in proper order fixed mounting in the inside of test box, the inside of test box separates into inner chamber one, inner chamber two and inner chamber three through baffle one and baffle two, fixed mounting has connecting pipe one on the baffle one, fixed mounting has connecting pipe two on the baffle two, the left side fixed mounting of test box has the fixing base. The testing device for the air permeability of the coating is stable in overall structure, can test the overall sealing performance before testing, prevents inaccurate testing caused by testing under the condition of air leakage, and improves the testing accuracy; wholly can once only test three kinds of different coatings, can be more audio-visual the air permeability of understanding between the different coatings, whole efficiency of software testing is high, and the coating sample can modulate in advance, then puts into the mounting groove again, saves test time, convenient to use.

Description

Testing arrangement of coating air permeability

Technical Field

The utility model relates to an air permeability test technical field specifically is a testing arrangement of coating air permeability.

Background

The air permeability refers to the difficulty of allowing air to pass through and is also a mark for measuring the porosity of the mixture, and under a certain pressure difference (vacuum degree), the air permeability is expressed by the amount of air passing through a unit area and a certain material layer height in unit time.

The surface of coating easily forms the space, leads to corrosion resistance, the insulating nature of coating to receive the influence, and traditional test mode can not carry out direct measurement to the gas that sees through, and can not test different coating air permeability simultaneously, and efficiency of software testing is low, is not convenient for use.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a testing arrangement of coating air permeability to it can not carry out direct measurement to the gas that sees through to provide traditional test mode in solving above-mentioned background art, and can not test the coating air permeability of difference simultaneously, and efficiency of software testing is low, the problem of being not convenient for use.

In order to achieve the above object, the utility model provides a following technical scheme: a testing device for the air permeability of a coating comprises a testing box, wherein a first partition plate and a second partition plate are fixedly installed inside the testing box from left to right in sequence, the inside of the testing box is divided into a first inner cavity, a second inner cavity and a third inner cavity through the first partition plate and the second partition plate, a first connecting pipe is fixedly installed on the first partition plate, a second connecting pipe is fixedly installed on the second partition plate, a fixed seat is fixedly installed on the left side of the testing box, a compressed air tank is fixedly installed on the fixed seat, an air outlet of the compressed air tank extends into the first inner cavity through the third connecting pipe, sealing shells are fixedly installed at the tops of the first inner cavity, the second inner cavity and the third inner cavity, a fourth connecting pipe is fixedly installed at the bottom of each sealing shell, a first barometer and a placing box are fixedly installed on the upper end face of the testing box, the front face of the placing box is of an open structure, and, the utility model discloses a test box, including placing the case, placing the up end fixed mounting of case and placing the case, place one side fixed mounting that the case is close to sealed lid and seal up first, sealed lid is close to one side fixed mounting who places the case and seals up sealed second, the mounting groove has been seted up to the up end of test box, the mounting groove is located the inside of placing the case, the inside bottom fixed mounting of mounting groove has sealed third, the inside threaded connection of mounting groove has the coating sample mould, the die cavity has been seted up to the up end of coating sample mould, the bottom fixed mounting of coating sample mould avris has sealed fourth, the up end fixed.

Preferably, the first inner cavity, the second inner cavity and the third inner cavity are communicated with each other through the first connecting pipe and the second connecting pipe, and the first inner cavity, the second inner cavity and the third inner cavity are the same in size.

Preferably, the number of the placing boxes is three, and the three placing boxes are respectively in one-to-one correspondence with the first inner cavity, the second inner cavity and the third inner cavity.

Preferably, the die cavity extends to the inside of the sealing shell, and through holes are formed in the outer side and the bottom of the die cavity.

Preferably, the first connecting pipe, the second connecting pipe, the third connecting pipe and the fourth connecting pipe are all provided with electromagnetic valves, and the electromagnetic valves are electrically connected with the control panel.

Preferably, the first barometer and the second barometer are respectively provided with three barometers, the three barometers are in one-to-one correspondence with the placing boxes, and the three barometers are in one-to-one correspondence with the first inner cavity, the second inner cavity and the third inner cavity.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the testing device for the air permeability of the coating is stable in overall structure, can test the overall sealing performance before testing, prevents inaccurate testing caused by testing under the condition of air leakage, and improves the testing accuracy;

2. this testing arrangement of coating air permeability wholly can once only test three kinds of different coatings, can be more audio-visual knows the air permeability between the different coatings, and whole efficiency of software testing is high, and the coating sample can modulate in advance, then puts into the mounting groove again, saves test time, convenient to use.

Drawings

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic side view of the present invention;

FIG. 3 is a schematic view of the internal structure of the present invention;

FIG. 4 is an enlarged schematic view of the structure at A in FIG. 3 according to the present invention;

fig. 5 is a schematic view of the three-dimensional structure of the coating sample mold of the present invention.

In the figure: 1. a test box; 2. a first clapboard; 3. a second clapboard; 4. a first inner cavity; 5. a second inner cavity; 6. a third inner cavity; 7. a first connecting pipe; 8. a second connecting pipe; 9. a fixed seat; 10. a compressed air tank; 11. a third connecting pipe; 12. sealing the shell; 13. a fourth connecting pipe; 14. a first barometer; 15. placing a box; 16. locking the bolt; 17. a sealing cover; 18. a second barometer; 19. a first sealing gasket; 20. a second sealing gasket; 21. mounting grooves; 22. a third sealing gasket; 23. coating a sample mold; 24. a mold cavity; 25. a fourth sealing gasket; 26. pulling a block; 27. a control panel.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution: a testing device for air permeability of a coating comprises a testing box 1, a first partition plate 2, a second partition plate 3, a first inner cavity 4, a second inner cavity 5, a third inner cavity 6, a first connecting pipe 7, a second connecting pipe 8, a fixing seat 9, a compressed air tank 10, a third connecting pipe 11, a sealing shell 12, a fourth connecting pipe 13, a first barometer 14, a placing box 15, a locking bolt 16, a sealing cover 17, a second barometer 18, a first sealing gasket 19, a second sealing gasket 20, a mounting groove 21, a third sealing gasket 22, a coating sample die 23, a die cavity 24, a fourth sealing gasket 25, a pull block 26 and a control panel 27, wherein the first partition plate 2 and the second partition plate 3 are fixedly mounted in sequence from left to right in the testing box 1, the interior of the testing box 1 is separated into the first inner cavity 4, the second inner cavity 5 and the third inner cavity 6 through the first partition plate 2 and the second partition plate 3, the first connecting pipe 7 is, a fixed seat 9 is fixedly installed on the left side of the test box 1, a compressed air tank 10 is fixedly installed on the fixed seat 9, an air outlet of the compressed air tank 10 extends to the inside of the inner cavity I4 through a connecting pipe III 11, a sealing shell 12 is fixedly installed at the top inside the inner cavity I4, the inner cavity II 5 and the inner cavity III 6, a connecting pipe IV 13 is fixedly installed at the bottom of the sealing shell 12, a barometer I14 and a placing box 15 are fixedly installed on the upper end surface of the test box 1, the front surface of the placing box 15 is of an open structure, a sealing cover 17 is fixedly installed on the front surface of the placing box 15 through a locking bolt 16, a barometer II 18 is fixedly installed on the upper end surface of the placing box 15, a sealing gasket I19 is fixedly installed on one side of the placing box 15 close to the sealing cover 17, a sealing gasket II 20 is fixedly installed on one, mounting groove 21 is located the inside of placing case 15, and the inside bottom fixed mounting of mounting groove 21 has sealed three 22 of pad, and the inside threaded connection of mounting groove 21 has coating sample mould 23, and die cavity 24 has been seted up to the up end of coating sample mould 23, and the bottom fixed mounting of coating sample mould 23 avris has sealed four 25 of pad, and the up end fixed mounting of coating sample mould 23 has a trigger piece 26, and the positive fixed mounting of test box 1 has control panel 27.

Furthermore, the inner cavities I4, II 5 and III 6 are communicated with each other through the connecting pipes I7 and II 8, and the sizes of the inner cavities I4, II 5 and III 6 are the same, so that gas can conveniently enter the inner cavity II 5 from the inner cavity I4 and enter the inner cavity III 6, the pressures of the three inner cavities are the same, and the test precision of the air permeability of different coating samples is improved.

Further, it is provided with threely to place case 15 altogether, and three case 15 of placing respectively with inner chamber one 4, inner chamber two 5, three 6 one-to-one in inner chamber, can test the air permeability of three kinds of coating samples simultaneously, the staff places the liquid coating in die cavity 24, treat after the liquid coating is totally dry, form the coating sample, then open sealed lid 17, with coating sample mould 23 screw in mounting groove 21, and make sealed three 22 and four 25 of sealed pad tightly laminate, improve sealed effect.

Further, the die cavity 24 extends to the inside of the sealing shell 12, and the through holes are formed in the outer side and the bottom of the die cavity 24, so that the gas can conveniently pass through the die cavity 24 and enter the inside of the placing box 15.

Furthermore, the first connecting pipe 7, the second connecting pipe 8, the third connecting pipe 11 and the fourth connecting pipe 13 are all provided with electromagnetic valves, the electromagnetic valves are electrically connected with the control panel 27, and the communication and separation among the first inner cavity 4, the second inner cavity 5 and the third inner cavity 6 are controlled by controlling the opening and closing of the electromagnetic valves.

Further, three barometers 14 and two barometers 18 are respectively arranged, the three barometers 18 correspond to the placing box 15 one by one, the three barometers 14 correspond to the inner cavities one 4, the inner cavities two 5 and the inner cavities three 6 one by one, the pressure in the inner cavities one 4, the inner cavities two 5 and the inner cavities three 6 is observed through the arranged barometers one 14, and the pressure in the placing box 15 is observed through the barometers two 18.

The working principle is as follows: firstly, before testing, closing the electromagnetic valve on the connecting pipe four 13, opening the electromagnetic valves on the connecting pipe one 7 and the connecting pipe two 8, then opening the electromagnetic valve on the connecting pipe three 11, leading the compressed air in the compressed air tank 10 to enter the inner cavity one 4 through the connecting pipe three 11, leading the gas to enter the inner cavity two 5 from the inner cavity one 4, after entering the inner cavity three 6, putting a certain amount of gas, then closing the electromagnetic valve on the connecting pipe three 11, after the pressure of the three inner cavities is the same, closing the electromagnetic valves on the connecting pipe one 7 and the connecting pipe two 8, observing whether the barometer one 14 fluctuates, thereby detecting whether the inner cavity one 4, the inner cavity two 5 and the inner cavity three 6 have gas leakage or not, after confirming that the gas leakage does not exist, a worker respectively puts the three coating sample molds 23 with different coating samples into the mounting grooves 21 in the three placing boxes 15, and pulls the pulling block 26 to be screwed, until the third sealing gasket 22 and the fourth sealing gasket 25 are tightly attached to each other, the sealing performance is improved, then the sealing cover 17 is installed on the opening in the front face of the placing box 15 through the locking bolt 16, the first sealing gasket 19 and the second sealing gasket 20 are tightly attached to each other to prevent air leakage, then the electromagnetic valve on the fourth connecting pipe 13 is opened, the air in the first inner cavity 4, the second inner cavity 5 and the third inner cavity 6 respectively enter the three sealing shells 12 and then enter the placing box 15 through the coating sample, the air permeability of the coatings of the three samples can be known by observing the second air pressure gauge 18 on the three placing boxes 15 within a certain time, the whole structure is stable, the whole sealing performance can be tested firstly before testing, the condition of inaccurate testing caused by testing under the condition of air leakage is prevented, the testing accuracy of the testing is improved, the three different coatings can be tested at one time, and the air permeability among different coatings can be known more intuitively, the whole test efficiency is high, and the coating sample can be modulated in advance, then put into mounting groove 21, save test time, convenient to use.

It should be finally noted that the above only serves to illustrate the technical solution of the present invention, and not to limit the scope of the present invention, and that simple modifications or equivalent replacements performed by those skilled in the art to the technical solution of the present invention do not depart from the spirit and scope of the technical solution of the present invention.

Claims

1. A test device for air permeability of a coating comprises a test box (1), and is characterized in that: a first partition plate (2) and a second partition plate (3) are fixedly installed inside the test box (1) from left to right in sequence, the inside of the test box (1) is separated into a first inner cavity (4), a second inner cavity (5) and a third inner cavity (6) through the first partition plate (2) and the second partition plate (3), a first connecting pipe (7) is fixedly installed on the first partition plate (2), a second connecting pipe (8) is fixedly installed on the second partition plate (3), a fixing seat (9) is fixedly installed on the left side of the test box (1), a compressed air tank (10) is fixedly installed on the fixing seat (9), an air outlet of the compressed air tank (10) extends to the inside of the first inner cavity (4) through a third connecting pipe (11), a sealing shell (12) is fixedly installed at the tops of the first inner cavity (4), the second inner cavity (5) and the third inner cavity (6), and a fourth connecting pipe (13) is fixedly installed at the bottom of, the upper end face fixed mounting of test box (1) has barometer (14) and places case (15), the front of placing case (15) is opening column structure, the front of placing case (15) has sealed lid (17) through locking bolt (16) fixed mounting, the upper end face fixed mounting who places case (15) has barometer two (18), one side fixed mounting who places case (15) and is close to sealed lid (17) has sealed pad one (19), sealed lid (17) are close to one side fixed mounting who places case (15) have sealed pad two (20), mounting groove (21) have been seted up to the upper end face of test box (1), mounting groove (21) are located the inside of placing case (15), the inside bottom fixed mounting of mounting groove (21) has sealed pad three (22), the inside threaded connection of mounting groove (21) has coating sample mould (23), die cavity (24) have been seted up to the up end of coating sample mould (23), the bottom fixed mounting of coating sample mould (23) avris has sealed four (25) of pad, the up end fixed mounting of coating sample mould (23) has a trigger piece (26), the positive fixed mounting of test box (1) has control panel (27).

2. The device for testing the air permeability of a coating according to claim 1, wherein: the inner cavities I (4), II (5) and III (6) are communicated with each other through the connecting pipes I (7) and II (8), and the inner cavities I (4), II (5) and III (6) are the same in size.

3. The device for testing the air permeability of a coating according to claim 1, wherein: the three placing boxes (15) are arranged, and the three placing boxes (15) are in one-to-one correspondence with the first inner cavity (4), the second inner cavity (5) and the third inner cavity (6) respectively.

4. The device for testing the air permeability of a coating according to claim 1, wherein: the die cavity (24) extends to the inside of the sealing shell (12), and through holes are formed in the outer side and the bottom of the die cavity (24).

5. The device for testing the air permeability of a coating according to claim 1, wherein: the solenoid valve is all installed to connecting pipe one (7), connecting pipe two (8), connecting pipe three (11) and connecting pipe four (13), and solenoid valve and control panel (27) electric connection.

6. The device for testing the air permeability of a coating according to claim 1, wherein: the first barometer (14) and the second barometer (18) are respectively provided with three barometers, the three barometers (18) correspond to the placing boxes (15) one by one, and the three barometers (14) correspond to the inner cavities (4), (5) and (6) one by one.