Polyurethane waterproof coating performance detection device

Abstract

The invention relates to the technical field of coating performance detection, in particular to a polyurethane waterproof coating performance detection device which comprises a detection box, a detection mechanism and a simulation assembly. The simulation assembly can simulate various situations such as ultraviolet irradiation, high temperature or low temperature, acid rain and indoor environment, wear performance detection is carried out on the coating in the situations, the authenticity and reliability of a final result are improved, and then through a triangular clamping structure formed by the lower pressing ring and the two lower pressing plates, the wear resistance of the coating is improved. The stability of the sample plate in the detection process is guaranteed, the downward pressure applied by the abrasion roller is adjusted by adjusting the locking unit, the situation that the coating is subjected to abrasion acting force of different degrees is simulated, in conclusion, the comprehensiveness of the detection process is improved, and then the reliability degree of the detection result is improved.

Description

Technical Field

[0001] The invention relates to the technical field of coating performance detection, and in particular to a polyurethane waterproof coating performance detection device. Background Art

[0002] Polyurethane waterproof coating is a single-component polyurethane waterproof coating made from an isocyanate-containing prepolymer formed by addition polymerization of isocyanate, polyether, etc., combined with a catalyst, anhydrous additives, anhydrous fillers, solvents, etc., and processed through mixing and other processes. When used, the coating solidifies after contact with moisture in the air to form a solid, seamless overall coating on the surface of the base layer, and this coating is used to organize moisture penetration, thereby achieving the desired waterproof effect.

[0003] However, the coating formed by the paint will be damaged due to external wear during long-term use, and moisture may enter the base layer through the damaged points, destroying the overall waterproof effect. Therefore, maintaining the surface integrity and wear resistance of the coating is crucial to maintaining its waterproof performance. Therefore, testing the waterproof performance of the coating needs to be tested through the wear resistance of the coating, that is, the wear resistance test can indirectly reflect the long-term waterproof performance of the waterproof coating. At present, the testing process mainly forms the coating to be tested by applying the paint to the sample, and then the sample is abraded by an abrasion tester, and the wear resistance of the coating is obtained by observing whether the coating is damaged, detecting the thickness change of the sample, detecting the mass loss of the sample and comparing with the standard.

[0004] The current testing process has the following problems: In outdoor environments, coatings not only face physical wear and tear, but also have to deal with the influence of factors such as ultraviolet radiation, temperature changes, and acid rain. These factors can cause aging and degradation of the coating, thereby reducing its wear resistance and waterproof performance. The current testing process is difficult to simulate the daily external environment, so the reliability of the test results is low.

[0005] Secondly, in the current testing process, one side of the sample is mainly fixed to the center of rotation, and the test is carried out by driving the sample to rotate a full circle and causing contact and wear with the wear roller. In this process, the clamping and locking of the sample is not sufficient, which can easily cause the sample to warp and affect the testing process. Summary of the invention

[0006] Based on this, it is necessary to provide a polyurethane waterproof coating performance testing device to solve the above-mentioned problems of the prior art.

[0007] The present application provides a polyurethane waterproof coating performance testing device, comprising: a testing box, the upper end of the testing box is open and a sealing door is provided at the opening, a driving shaft with a vertical axis is rotatably provided at the bottom of the testing box, a rotating seat is provided at the bottom of the testing box through a supporting column with a vertical axis, a supporting block is fixedly provided on the upper end surface of the supporting column, the supporting block is circumferentially slidably provided on the lower end surface of the rotating seat, and a pad is fixedly provided on the upper end surface of the rotating seat.

[0008] The rotating seat is provided with a clamping unit for clamping the locking template, the clamping unit includes a lower pressure plate, and the rotating seat is penetrated by two lower pressure rods which are distributed front and back and slide up and down, the upper end surface of the lower pressure rod is fixedly provided with a lower pressure plate, a central column which slides up and down is provided on the driving shaft, a lower pressure ring located above the pad is fixedly sleeved on the central column, a hydraulic cylinder with a telescopic end rotatably connected to the central column is provided on the rear end surface of the detection box, and a transmission group is provided at the lower end of the rotating seat.

[0009] A detection mechanism is arranged in the detection box, and the detection mechanism includes a frame. A frame located on the right side of the hydraulic cylinder is fixedly arranged at the bottom of the detection box, a U-shaped block is arranged on the frame, a wear roller is rotatably arranged on the U-shaped block, and an adjustment locking unit is arranged on the frame. A simulation component for simulating actual usage conditions is arranged in the detection box.

[0010] According to a favorable embodiment, the simulation component includes a sprayer, the rear end surface inside the detection box is provided with the sprayer, the left end surface inside the detection box is fixedly provided with a conduit, and the sealing door is fixedly provided with an ultraviolet irradiation lamp.

[0011] According to an advantageous embodiment, the clamping unit further comprises an L-shaped block, the lower end surface of the lower pressing plate is fixedly provided with an L-shaped block, and the two L-shaped blocks are symmetrical front to back and both inner corners face the central column.

[0012] According to a favorable embodiment, the transmission group includes an annular plate, the lower end surfaces of the two lower pressure rods are commonly fixed with an annular plate, a spring mounted on the lower pressure rod is commonly fixed between the annular plate and the rotating seat, an annular groove is provided on the lower end surface of the annular plate, an annular block is slidably arranged in the annular groove, a rectangular bar is fixedly arranged on the lower end surface of the annular block, the rectangular bar is rotatably mounted on the center column, and the support column slides up and down through the rectangular bar.

[0013] According to a favorable embodiment, the detection mechanism also includes a placement groove, the upper end surface of the frame is provided with a placement groove, a fixed rod with an axis extending from left to right is fixed in the placement groove, a pressure plate is rotatably sleeved on the fixed rod, a U-shaped block is fixedly arranged on the front end surface of the pressure plate, a sliding plate is slidably arranged on the rear end surface of the frame, and a spring 2 is fixedly arranged between the sliding plate and the rear end of the pressure plate.

[0014] According to an advantageous embodiment, the adjustment locking unit comprises a U-shaped frame, the upper end surface of the rectangular bar is slidably provided with a U-shaped frame with a U-shaped opening facing downward, and a locking hole is provided on the horizontal section of the U-shaped frame.

[0015] According to an advantageous embodiment, the left end surface of the inner wall of the locking hole and the right end surface of the fixing rod are both chamfered.

[0016] According to a favorable embodiment, the adjustment locking unit also includes a transverse frame, which is arranged on the vertical section on the rear side of the U-shaped frame, and a wedge block is fixedly arranged on the left end face of the transverse frame, the inclined surface of the wedge block is inclined to the left from top to bottom, and a card slot is opened on the inclined surface of the wedge block, and a card block is fixedly arranged on the right end face of the sliding plate.

[0017] According to a favorable embodiment, a plurality of mounting grooves are provided on the vertical section at the rear side of the U-shaped frame, which are arranged equidistantly from top to bottom and penetrate left and right. A mounting block is fixedly provided on the left end face of the U-shaped frame, and a mounting rod penetrating up and down is slidably provided on the mounting block. The lower end face of the mounting rod is slidably provided on the upper end face of the transverse frame through a moving block, and a pushing circular plate is fixedly provided on the transverse frame.

[0018] According to a favorable embodiment, an L-shaped connecting frame is fixedly provided on the pushing circular plate, and an operating rod with an axis extending from left to right is fixedly provided on the right end face of the connecting frame and the right end face of the U-shaped frame, the front operating rod is slid left and right on the right end face of the detection box, and the rear operating rod passes through the detection box.

[0019] In summary, the present invention includes at least one of the following beneficial effects: First, the simulation component in the present invention can simulate various situations such as ultraviolet radiation, high or low temperature, acid rain and indoor conditions, and perform wear performance testing on the coating in the above situations, thereby improving the authenticity and reliability of the final results; secondly, the triangular clamping formed by the lower pressure ring and the two lower pressure plates ensures the stability of the sample during the testing process, and the downward pressure applied by the wear roller is adjusted by adjusting the locking unit to simulate the situation when the coating is subjected to different degrees of wear forces; in summary, the comprehensiveness of the testing process is improved, thereby improving the reliability of the test results.

[0020] 2. In the present invention, the right end of the fixing rod is inserted into the locking hole, and the locking rectangular bar, the annular plate, the lower pressure plate, the lower pressure ring and the center column are all locked, so that the two lower pressure plates and the lower pressure ring form a triangular clamping lock for the sample, thereby improving the stability of the subsequent detection process.

[0021] 3. In the present invention, the U-shaped frame and the push circular plate are controlled by two operating rods located outside the detection box. While being able to adjust the locking process and the size of the downward force, it prevents the staff from contacting with the structure sprayed with acidic liquid or with high or low temperature, thereby ensuring the safety of the staff's work. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention 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 embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0023] Figure 1 A schematic diagram of the three-dimensional structure of a polyurethane waterproof coating performance detection device provided according to an embodiment of the present invention is shown.

[0024] Figure 2 A partial cross-sectional three-dimensional structural schematic diagram of a detection box, a transmission group and a U-shaped frame provided according to an embodiment of the present invention is shown.

[0025] Figure 3 A schematic diagram of a partial cross-sectional three-dimensional structure between a rotating seat, a lower pressure ring and a driving shaft provided according to an embodiment of the present invention is shown.

[0026] Figure 4 The embodiment provided according to the present invention shows Figure 3 A magnified schematic diagram of center A.

[0027] Figure 5 A schematic diagram of a partial cross-sectional explosion structure between a lower pressure ring, a pressure plate and a wedge block provided according to an embodiment of the present invention is shown.

[0028] Figure 6 The embodiment provided according to the present invention shows Figure 5 A magnified schematic diagram of point B in the middle.

[0029] Figure 7 A right side view between a fixing rod, a wedge block and a wear roller provided according to an embodiment of the present invention is shown.

[0030] Figure 8 A schematic diagram showing the traces produced when the sample is subjected to wear testing.

[0031] The above drawings include the following reference numerals: 1. detection box; 2. sealing door; 3. driving shaft; 4. rotating seat; 40. supporting column; 41. pad; 5. clamping unit; 50. lower pressure rod; 500. lower pressure plate; 501. center column; 502. lower pressure ring; 503. hydraulic cylinder; 504. L-shaped block; 51. transmission group; 510. annular plate; 511. spring 1; 512. annular block; 513. rectangular bar; 6. detection mechanism; 60. frame; 600. U-shaped block; 601. wear roller; 602. Placement slot; 603, fixing rod; 604, pressure plate; 605, sliding plate; 606, spring 2; 62, adjustment locking unit; 620, U-shaped frame; 621, locking hole; 622, horizontal frame; 623, wedge block; 624, card slot; 625, card block; 626, installation slot; 627, installation block; 628, installation rod; 629, push circular plate; 63, simulation component; 630, sprayer; 631, catheter; 632, ultraviolet lamp; 64, connecting frame; 65, operating rod; 7, sample. DETAILED DESCRIPTION

[0032] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0033] like Figure 1 , Figure 2 and Figure 3 As shown, a polyurethane waterproof coating performance testing device comprises: a testing box 1, the upper end of the testing box 1 is open and a sealing door 2 is arranged at the opening, a driving shaft 3 with a vertical axis is rotatably arranged at the bottom of the testing box 1, the driving shaft 3 is connected to an external motor (not shown in the figure), a rotating seat 4 is rotatably arranged at the bottom of the testing box 1 through a supporting column 40 with a vertical axis, a supporting block is fixedly arranged on the upper end surface of the supporting column 40, the supporting block is circumferentially slidably arranged on the lower end surface of the rotating seat 4, and a pad 41 is fixedly arranged on the upper end surface of the rotating seat 4.

[0034] like Figure 1 , Figure 2 and Figure 3As shown, the rotating seat 4 is provided with a clamping unit 5 for clamping and locking the template 7, and the clamping unit 5 includes a lower pressure plate 500. The rotating seat 4 is penetrated by two lower pressure rods 50 distributed front and back and sliding up and down, and the upper end surface of the lower pressure rod 50 is fixedly provided with a lower pressure plate 500, and a central column 501 sliding up and down is provided on the driving shaft 3. A lower pressure ring 502 located above the pad 41 is fixedly sleeved on the central column 501, and a hydraulic cylinder 503 whose telescopic end is rotatably connected to the central column 501 is provided on the rear end surface of the detection box 1. A transmission group 51 is provided at the lower end of the rotating seat 4. When the hydraulic cylinder 503 works, the lower pressure ring 502 presses the template 7, and the two lower pressure plates 500 press the template 7 through the transmission of the transmission group 51.

[0035] like Figure 1 , Figure 2 and Figure 5 As shown, a detection mechanism 6 is arranged in the detection box 1, and the detection mechanism 6 includes a frame 60. The frame 60 located on the right side of the hydraulic cylinder 503 is fixedly arranged at the bottom of the detection box 1, and a U-shaped block 600 is arranged on the frame 60. A wear roller 601 is rotatably arranged on the U-shaped block 600. An adjustment locking unit 62 is arranged on the frame 60. The adjustment locking unit 62 first locks the clamping of the two lower pressure plates 500 and the lower pressure ring 502 so that the three form a triangle for stable clamping, and then adjusts the downward pressure force of the wear roller 601 on the sample 7. A simulation component 63 for simulating actual usage conditions is arranged in the detection box 1.

[0036] like Figure 1 As shown, the simulation component 63 includes a sprayer 630, and the rear end face inside the detection box 1 is provided with a sprayer 630 for spraying acidic liquid. A conduit 631 is fixedly provided on the left end face inside the detection box 1, and the conduit 631 introduces external hot air or cold air into the detection box 1. An ultraviolet lamp 632 is fixedly provided on the sealing door 2.

[0037] During operation, first, the sample 7 with the coating to be tested formed by the polyurethane waterproof coating is manually placed at the specified position on the pad 41, and the lower pressure plate 500 and the lower pressure ring 502 are located above the sample 7. Then the hydraulic cylinder 503 works so that its telescopic end drives the lower pressure ring 502 to move downward, and the lower pressure ring 502 presses one side of the sample 7. At the same time, through the synchronous downward movement of the lower pressure ring 502 and the center column 501 and the transmission of the transmission group 51, the two lower pressure plates 500 move downward synchronously, and the lower pressure plate 500 presses the sample 7 downward against the pad 41. The locking of the lower pressure plate 500 and the lower pressure ring 502 is completed by adjusting the locking unit 62. At the same time, the downward pressure force of the wear roller 601 is adjusted to the required set value, and the sealing door 2 is closed.

[0038] The ultraviolet irradiation lamp 632 in the simulation component 63 is powered on to irradiate the sample 7 for a specified time, and then the external motor works to drive the rotating seat 4, the pad 41 and the sample 7 to rotate synchronously through the driving shaft 3. The wear roller 601 detects the waterproof performance of the coating formed by the coating during the whole rotation of the sample 7 (see Figure 8 , which is the trace formed by the wear roller 601 wearing the sample 7), then the hot air or cold air is pumped into the test box 1 through the duct 631 in the simulation component 63 in cooperation with the external air pump, simulating the situation of the coating being in different temperature states, and the wear resistance of the coating is tested under this situation, and then the acidic liquid is sprayed onto the sample 7 through the sprayer 630 to simulate the situation after being drenched by acid rain, and the wear resistance of the coating is tested under this situation, and then the wear resistance test results of the coating are obtained by observing whether the coating is damaged, detecting the change in thickness of the sample, detecting the mass loss of the sample and comparing with the standard, etc., and finally the waterproof performance of the coating is indirectly reflected by the result, and the downward pressure of the wear roller 601 on the sample 7 can be adjusted by adjusting the locking unit 62, thereby simulating the situation of different degrees of wear and performing the test.

[0039] In summary, the triangular clamp formed by the lower pressure ring 502 and the two lower pressure plates 500 ensures the stability of the sample 7 during the detection process, while avoiding the problem of warping on the side of the sample 7 away from its rotation center that affects the detection process. Secondly, by simulating various conditions such as ultraviolet radiation, temperature changes, acid rain, etc. in the simulation component 63, the universality of the device is improved, and the reliability and authenticity of the test results are guaranteed.

[0040] like Figure 1 , Figure 2 and Figure 3 As shown, the clamping unit 5 further includes an L-shaped block 504 , and the lower end surface of the lower pressing plate 500 is fixedly provided with the L-shaped block 504 , and the two L-shaped blocks 504 are symmetrical front to back and the inner corners of both are facing the central column 501 .

[0041] In the process of placing the sample 7 and moving the lower pressure plate 500 downward to limit the downward pressure of the sample 7, the two L-shaped blocks 504 cooperate with each other to limit the front and rear positions of the sample 7 in the initial state, thereby assisting the process of placing the sample 7, ensuring that the sample 7 is placed in the specified position and carrying out the subsequent detection process.

[0042] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the transmission group 51 includes an annular plate 510, and the lower end surfaces of the two lower pressure rods 50 are commonly fixed with an annular plate 510, and a spring 511 mounted on the lower pressure rod 50 is commonly fixedly arranged between the annular plate 510 and the rotating seat 4, and an annular groove is formed on the lower end surface of the annular plate 510, and an annular block 512 is slidably arranged in the annular groove, and a rectangular bar 513 is fixedly arranged on the lower end surface of the annular block 512, and the rectangular bar 513 is rotatably mounted on the center column 501, and the support column 40 slides up and down through the rectangular bar 513.

[0043] like Figure 1 , Figure 5 , Figure 6 and Figure 7 As shown, the detection mechanism 6 also includes a placement groove 602. The upper end surface of the frame 60 is provided with a placement groove 602. A fixed rod 603 with an axis extending from left to right is fixed in the placement groove 602. A pressure plate 604 is rotatably sleeved on the fixed rod 603. The U-shaped block 600 is fixedly arranged on the front end surface of the pressure plate 604. A sliding plate 605 is slidably arranged on the rear end surface of the frame 60, and a spring 2 606 is fixedly arranged between the sliding plate 605 and the rear end of the pressure plate 604.

[0044] During operation, after the template 7 is placed at the specified position on the pad 41, the hydraulic cylinder 503 works to make the lower pressure ring 502 and the center column 501 move downward synchronously, and the center column 501 drives the rectangular bar 513 to move synchronously, and the annular block 512 on the rectangular bar 513 drives the annular plate 510 and the two lower pressure rods 50 to move downward synchronously, so the lower pressure plate 500 and the lower pressure ring 502 move downward synchronously, and finally the lower pressure plate 500 and the lower pressure ring 502 press the template 7 downward. After the subsequent inspection operation is completed, the hydraulic cylinder 503 works to make the lower pressure ring 502 move upward, and the elastic force generated by the deformation of the spring 511 makes the annular plate 510 drive the lower pressure rod 50 and the lower pressure plate 500 to move up and reset, so as to facilitate the removal of the template 7.

[0045] like Figure 1 , Figure 2 , Figure 5 and Figure 6 As shown, the adjustment locking unit 62 includes a U-shaped frame 620, and the upper end surface of the rectangular bar 513 is slidably provided with a U-shaped frame 620 with a U-shaped opening facing downward, and a locking hole 621 is provided on the horizontal section of the U-shaped frame 620. After the U-shaped frame 620 moves to the left, the fixing rod 603 passes through the locking hole 621, completing the locking of the U-shaped frame 620 and the rectangular bar 513, and indirectly locking the two lower pressure plates 500 and a lower pressure ring 502 to a triangular clamping state of the template 7.

[0046] like Figure 6 As shown, the left end surface of the inner wall of the locking hole 621 and the right end surface of the fixing rod 603 are both chamfered.

[0047] After completing the downward pressure limit of the sample 7, the locking hole 621 on the U-shaped frame 620 is opposite to the left and right of the fixing rod 603. Then, the U-shaped frame 620 is manually moved to the left, and the right end of the fixing rod 603 is gradually inserted into the locking hole 621, so that the rectangular bar 513, the annular plate 510, the lower pressure plate 500, the lower pressure ring 502 and the center column 501 are all locked. The two lower pressure plates 500 and the lower pressure ring 502 form a triangular clamping lock for the sample 7, thereby improving the stability of the subsequent detection process.

[0048] like Figure 1 , Figure 5 , Figure 6 and Figure 7 As shown, the adjustment locking unit 62 also includes a transverse frame 622, and the transverse frame 622 is arranged on the vertical section on the rear side of the U-shaped frame 620. A wedge block 623 is fixedly arranged on the left end surface of the transverse frame 622. The inclined surface of the wedge block 623 is inclined to the left from top to bottom, and a slot 624 is provided on the inclined surface of the wedge block 623. A block 625 is fixedly arranged on the right end surface of the sliding plate 605. During the leftward movement of the wedge block 623, its inclined surface drives the sliding plate 605 to move upward, so that the spring 2 606 is compressed to form the downward pressure required in the detection process, and then the block 625 is inserted into the slot 624, and the downward pressure force is maintained by locking.

[0049] like Figure 5 , Figure 6 and Figure 7 As shown, a plurality of mounting grooves 626 are arranged equidistantly from top to bottom and penetrate left and right on the rear vertical section of the U-shaped frame 620, a mounting block 627 is fixedly provided on the left end face of the U-shaped frame 620, a mounting rod 628 penetrating up and down is slidably provided on the mounting block 627, the lower end face of the mounting rod 628 is slidably provided on the upper end face of the transverse frame 622 via a moving block, and a pushing circular plate 629 is fixedly sleeved on the transverse frame 622.

[0050] During operation, in the process of moving the U-shaped frame 620 to the left, when the fixing rod 603 passes through the locking hole 621, the clamping process is locked, and then the U-shaped frame 620 continues to move left, and the rear vertical section of the U-shaped frame 620 pushes the circular plate 629, so that the horizontal frame 622 and the wedge block 623 move left synchronously. In the process of the wedge block 623 moving left, the upper inclined surface of the wedge block 623 cooperates with the card block 625, so that the card block 625 and the sliding plate 605 gradually move up and compress the spring 2 606, and finally the card block 625 is stuck in the card slot 624, completing the sliding plate 605. 05 is locked in the limit position. At this time, the elastic force generated by the deformation of the spring 2 606 acts on the rear end part of the pressure plate 604, and makes the front end of the pressure plate 604 drive the wear roller 601 to generate a downward force. Then the external motor drives the central column 501 and the sample 7 to rotate circumferentially through the drive shaft 3. During the rotation, the wear roller 601 applies a downward pressure on the sample 7 to simulate the situation when it is worn. In this case, the wear resistance of the coating is tested, and the test results of the waterproof performance are reflected by the test results, that is, through observation.

[0051] When the downward pressure force needs to be adjusted, the specific operation is as follows: the U-shaped frame 620 is moved to the right so that the U-shaped frame 620 drives the wedge block 623 to move to the right synchronously, but during the rightward movement, the fixing rod 603 is kept to penetrate the locking hole 621, that is, the locking state after the template 7 is clamped is maintained, and the circular plate 629 and the horizontal frame 622 are first moved to the left to push the circular plate 629 and the horizontal frame 622 so that the horizontal frame 622 is separated from the mounting groove 626, and then the horizontal frame 622 is moved upward, and the height of the horizontal frame 622 is changed by plugging and matching the horizontal frame 622 with the mounting grooves 626 of different heights, that is, the block 625 is adjusted to move upward and The required height for the slot 624 to cooperate, the specific process is as follows: after adjusting the horizontal frame 622 to cooperate with the upper mounting slot 626, when the subsequent wedge block 623 cooperates with the block 625, the sliding plate 605 needs to move up a greater distance than the previous process to make the block 625 cooperate with the slot 624, so the spring 2 606 needs to be compressed to a greater extent, which indirectly increases the downward pressure of the wear roller 601 on the template 7. After completing the height adjustment of the horizontal frame 622, move the U-shaped frame 620 to the left to complete the adjustment of the downward pressure force, and repeat the detection process.

[0052] In the above process, the horizontal frame 622 can only move in the up-down direction and the left-right direction through the mounting rod 628 and the mounting block 627, which is convenient for manual operation.

[0053] like Figure 1 , Figure 2 , Figure 5 and Figure 6As shown, an L-shaped connecting frame 64 is fixedly provided on the pushing circular plate 629, and an operating rod 65 with an axis extending from left to right is fixedly provided on the right end surface of the connecting frame 64 and the right end surface of the U-shaped frame 620. The front operating rod 65 is slidably provided on the right end surface of the detection box 1, and the rear operating rod 65 passes through the detection box 1.

[0054] After the sealing door 2 is closed, the U-shaped frame 620 is moved left and right and the circular plate 629 is pushed to move by manually moving the two operating rods 65 located outside the detection box 1, thereby locking the clamping process and adjusting the downward pressure force, avoiding direct contact between the staff and the structure inside the detection box 1, and further avoiding contact with high or low temperatures or structures sprayed with acidic liquids.

[0055] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the devices or elements referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention. The directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0056] In addition, the terms "first", "second", "number one", "number two" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second", "number one", "number two" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0057] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "connect", "install", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0058] The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A polyurethane waterproof coating performance detection device, characterized in that: include: A detection box (1), wherein the upper end of the detection box (1) is open and a sealing door (2) is arranged at the opening, a driving shaft (3) with a vertical axis is rotatably arranged at the bottom of the detection box (1), a rotating seat (4) is arranged at the bottom of the detection box (1) through a supporting column (40) with a vertical axis, a supporting block is fixedly arranged on the upper end surface of the supporting column (40), the supporting block is circumferentially slidably arranged on the lower end surface of the rotating seat (4), and a pad (41) is fixedly arranged on the upper end surface of the rotating seat (4); The rotating seat (4) is provided with a clamping unit (5) for clamping the locking template (7), the clamping unit (5) includes a lower pressure plate (500), the rotating seat (4) is penetrated by two lower pressure rods (50) distributed front and back and sliding up and down, the upper end surface of the lower pressure rod (50) is fixedly provided with a lower pressure plate (500), the driving shaft (3) is provided with a central column (501) sliding up and down, the central column (501) is fixedly provided with a lower pressure ring (502) located above the pad (41), the rear end surface of the detection box (1) is provided with a hydraulic cylinder (503) whose telescopic end is rotatably connected to the central column (501), and the lower end of the rotating seat (4) is provided with a transmission group (51); The detection box (1) is provided with a detection mechanism (6), the detection mechanism (6) comprises a frame (60), the bottom of the detection box (1) is fixedly provided with a frame (60) located on the right side of the hydraulic cylinder (503), a U-shaped block (600) is provided on the frame (60), a wear roller (601) is rotatably provided on the U-shaped block (600), and an adjustment locking unit (62) is provided on the frame (60), the adjustment locking unit (62) first locks the clamping of the two lower pressure plates (500) and the lower pressure ring (502) so that the three form a triangle for stable clamping, and then adjusts the downward pressure force of the wear roller (601) on the sample (7), and the detection box (1) is provided with a simulation component (63) for simulating actual use conditions.

2. A polyurethane waterproof coating performance detection device according to claim 1, characterized in that: The simulation component (63) comprises a sprayer (630), the rear end surface inside the detection box (1) is provided with a sprayer (630) for spraying acidic liquid, the left end surface inside the detection box (1) is fixedly provided with a conduit (631), and the sealing door (2) is fixedly provided with an ultraviolet irradiation lamp (632).

3. A polyurethane waterproof coating performance detection device according to claim 1, characterized in that: The clamping unit (5) further comprises an L-shaped block (504), the lower end surface of the lower pressing plate (500) being fixedly provided with the L-shaped block (504), and the two L-shaped blocks (504) are symmetrical front to back and both inner corners face the central column (501).

4. A polyurethane waterproof coating performance detection device according to claim 1, characterized in that: The transmission group (51) includes an annular plate (510), the lower end surfaces of the two lower pressure rods (50) are commonly fixedly provided with an annular plate (510), a spring (511) sleeved on the lower pressure rod (50) is commonly fixedly provided between the annular plate (510) and the rotating seat (4), an annular groove is provided on the lower end surface of the annular plate (510), an annular block (512) is slidably provided in the annular groove, a rectangular bar (513) is fixedly provided on the lower end surface of the annular block (512), the rectangular bar (513) is rotatably sleeved on the central column (501), and the support column (40) slides up and down to pass through the rectangular bar (513).

5. A polyurethane waterproof coating performance detection device according to claim 4, characterized in that: The detection mechanism (6) also includes a placement groove (602). The upper end surface of the frame (60) is provided with a placement groove (602). A fixed rod (603) with an axis extending from left to right is fixed in the placement groove (602). A pressure plate (604) is rotatably sleeved on the fixed rod (603). The U-shaped block (600) is fixedly arranged on the front end surface of the pressure plate (604). A sliding plate (605) is slidably arranged on the rear end surface of the frame (60), and a spring 2 (606) is fixedly arranged between the sliding plate (605) and the rear end of the pressure plate (604).

6. A polyurethane waterproof coating performance detection device according to claim 5, characterized in that: The adjustment locking unit (62) comprises a U-shaped frame (620), and the upper end surface of the rectangular strip (513) is provided with a U-shaped frame (620) with a U-shaped opening facing downward, which can be slid left and right. A locking hole (621) is provided on the horizontal section of the U-shaped frame (620). After the U-shaped frame (620) moves leftward, the fixing rod (603) passes through the locking hole (621), thereby completing the locking of the U-shaped frame (620) and the rectangular strip (513), and indirectly locking the two lower pressure plates (500) and a lower pressure ring (502) to triangularly clamp the sample (7).

7. A polyurethane waterproof coating performance detection device according to claim 6, characterized in that: The left end surface of the inner wall of the locking hole (621) and the right end surface of the fixing rod (603) are both chamfered.

8. A polyurethane waterproof coating performance detection device according to claim 7, characterized in that: The adjustment locking unit (62) further comprises a transverse frame (622), the transverse frame (622) being arranged on the vertical section at the rear side of the U-shaped frame (620), a wedge block (623) being fixedly arranged on the left end surface of the transverse frame (622), the inclined surface of the wedge block (623) being inclined to the left from top to bottom, a locking groove (624) being arranged on the inclined surface of the wedge block (623), and a locking block (625) being fixedly arranged on the right end surface of the sliding plate (605), when the wedge block (623) moves to the left, its inclined surface drives the sliding plate (605) to move upward, so that the second spring (606) is compressed, thereby forming the downward pressure required in the detection process, and then the locking block (625) is locked into the locking groove (624), and the downward pressure is maintained by locking.

9. A polyurethane waterproof coating performance detection device according to claim 8, characterized in that: A plurality of mounting grooves (626) are arranged equidistantly from top to bottom and penetrate left and right on the rear vertical section of the U-shaped frame (620); a mounting block (627) is fixedly arranged on the left end surface of the U-shaped frame (620); a mounting rod (628) is slidably arranged on the mounting block (627) and penetrates up and down; the lower end surface of the mounting rod (628) is slidably arranged on the upper end surface of the horizontal frame (622) through a moving block; and a pushing circular plate (629) is fixedly sleeved on the horizontal frame (622).

10. A polyurethane waterproof coating performance detection device according to claim 9, characterized in that: An L-shaped connecting frame (64) is fixedly arranged on the pushing circular plate (629), and an operating rod (65) with an axis extending from left to right is fixedly arranged on the right end surface of the connecting frame (64) and the right end surface of the U-shaped frame (620), the front operating rod (65) is slidably arranged on the right end surface of the detection box (1) left and right, and the rear operating rod (65) passes through the detection box (1).

Images