A device for detecting the performance of a polyurethane waterproof coating

Abstract

The present invention relates to the technical field of coating performance detection, and specifically relates to a device for detecting the performance of polyurethane waterproof coatings, including a detection box, a detection mechanism, and a simulation component. In the present invention, the simulation component can simulate various situations such as ultraviolet irradiation, high temperature or low temperature, acid rain, and indoor environments, and perform wear performance detection on the coating in the above situations, improving the authenticity and reliability of the finally obtained results. Secondly, the triangular clamping structure formed by the pressing ring and the two lower pressing plates ensures the stability during the sample detection process. By adjusting the locking unit, the magnitude of the downward pressure applied by the abrasion roller is adjusted to simulate the situation when the coating is subjected to different degrees of wear forces. In summary, the comprehensiveness of the detection process is improved, thereby improving the reliability of the detection results.

Description

Technical Field

[0001] The present invention relates to the technical field of coating performance detection, and particularly to a device for detecting the performance of polyurethane waterproof coating. Background Art

[0002] Polyurethane waterproof coating is a prepolymer containing isocyanate groups formed by the addition polymerization reaction of isocyanate, polyether, etc., and is formulated with catalysts, anhydrous auxiliaries, anhydrous fillers, solvents, etc. through processes such as mixing to produce a one-component polyurethane waterproof coating. When the coating is used, it cures after contacting the moisture in the air, forming a solid seamless integral coating on the surface of the base layer, and preventing water penetration through this layer of coating, thereby achieving the required waterproof effect.

[0003] However, the coating formed by the coating may be damaged due to external wear during long-term use, and water 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 for maintaining its waterproof performance. Therefore, testing the waterproof performance of the coating requires detecting 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. Currently, during the detection process, the coating is mainly applied to a sample plate to form a coating to be tested, and then the sample plate is subjected to abrasion operation by an abrasion tester, and the wear resistance performance results of the coating are obtained through various methods such as observing whether the coating is damaged, detecting the thickness change of the sample plate, detecting the mass loss of the sample plate, and comparing with standards.

[0004] Regarding the current detection process, there are the following problems: In the outdoor environment, the coating not only has to face physical wear, but also has to cope with the influence of factors such as ultraviolet radiation, temperature change, acid rain, etc. These factors will cause the aging and degradation of the coating, thereby reducing its wear resistance and waterproof performance. However, it is difficult to simulate the daily external environment during the current detection process, so the reliability of the obtained detection results is relatively low.

[0005] Secondly, during the current detection process, one side of the sample plate is mainly fixed at the rotation center position, and the sample plate is driven to rotate a full circle and contact and wear with the abrasion roller for testing. During this process, the clamping and locking of the sample plate are not sufficient, and the problem that the sample plate warps and affects the detection process is likely to occur. Summary of the Invention

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

[0007] The present application provides a performance detection device for polyurethane waterproof coatings, comprising: a detection box, the upper end of the detection 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 detection box, a rotating seat with a vertical axis is provided at the bottom inside the detection box through a support column, a support block is fixedly provided on the upper end surface of the support column, the support block is circumferentially slidably provided on the lower end surface of the rotating seat, and a backing plate is fixedly provided on the upper end surface of the rotating seat.

[0008] A clamping unit for clamping and locking a sample is provided on the rotating seat. The clamping unit includes a lower pressing plate. Two downward pressing rods which are distributed front and back and slide up and down are penetrated through the rotating seat. The upper end surface of the downward pressing rod is fixedly provided with the lower pressing plate. A central column which slides up and down is provided on the driving shaft. A downward pressing ring located above the backing plate 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. A transmission group is provided at the lower end of the rotating seat.

[0009] A detection mechanism is provided inside the detection box. The detection mechanism includes a frame. The frame is fixedly provided at the bottom inside the detection box on the right side of the hydraulic cylinder. A U-shaped block is provided on the frame. A wear roller is rotatably provided on the U-shaped block. An adjustment and locking unit is provided on the frame. A simulation component for simulating the actual use situation is provided inside the detection box.

[0010] According to a preferred embodiment, the simulation component includes a sprayer. The sprayer is provided on the rear end surface inside the detection box. A conduit is fixedly provided on the left end surface inside the detection box. An ultraviolet irradiation lamp is fixedly provided on the sealing door.

[0011] According to a preferred embodiment, the clamping unit further includes an L-shaped block. The L-shaped block is fixedly provided on the lower end surface of the lower pressing plate, and the two L-shaped blocks are symmetric front and back and the inner corners of both face the central column.

[0012] According to a preferred embodiment, the transmission group includes an annular plate. The lower end surfaces of the two downward pressing rods are jointly fixedly provided with the annular plate. A first spring sleeved on the downward pressing rod is jointly fixedly provided between the annular plate and the rotating seat. An annular groove is formed on the lower end surface of the annular plate. An annular block is slidably provided in the annular groove. A rectangular strip is fixedly provided on the lower end surface of the annular block. The rectangular strip is rotatably sleeved on the central column. The support column slidably penetrates through the rectangular strip up and down.

[0013] According to a preferred embodiment, the detection mechanism further includes a placement groove. The placement groove is formed on the upper end surface of the frame. A fixing rod with an axis extending from left to right is fixedly penetrated through the placement groove. A pressing plate is rotatably sleeved on the fixing rod. The U-shaped block is fixedly provided on the front end surface of the pressing plate. A sliding plate is slidably provided up and down on the rear end surface of the frame. A second spring is jointly fixedly provided between the sliding plate and the rear end of the pressing plate.

[0014] According to a preferred embodiment, the adjustment locking unit includes a U-shaped frame, on the upper end surface of the rectangular strip, a U-shaped frame with a downward U-shaped opening is slidably arranged left and right, and locking holes are formed in the horizontal section of the U-shaped frame.

[0015] According to a preferred 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 preferred embodiment, the adjustment locking unit further includes a transverse frame, a transverse frame is arranged on the vertical section at the rear of the U-shaped frame, a wedge block is fixedly arranged on the left end surface of the transverse frame, the inclined surface of the wedge block inclines leftward from top to bottom, a clamping groove is formed in the inclined surface of the wedge block, and a clamping block is fixedly arranged on the right end surface of the sliding plate.

[0017] According to a preferred embodiment, a plurality of mounting grooves which are arranged at equal intervals from top to bottom and penetrate left and right are formed in the vertical section at the rear of the U-shaped frame, a mounting block is fixedly arranged on the left end surface of the U-shaped frame, a mounting rod which penetrates up and down is slidably arranged on the mounting block, the lower end surface of the mounting rod is slidably arranged on the upper end surface of the transverse frame through a moving block, and a pushing circular plate is fixedly sleeved on the transverse frame.

[0018] According to a preferred embodiment, an L-shaped connecting frame is fixedly arranged on the pushing circular plate, operating rods with axes extending from left to right are fixedly arranged on the right end surface of the connecting frame and the right end surface of the U-shaped frame respectively, the front operating rod is slidably arranged on the right end surface of the detection box, and the rear operating rod penetrates through the detection box.

[0019] In summary, the present invention includes at least the following beneficial effects: First, the simulation components in the present invention can simulate various situations such as ultraviolet irradiation, high temperature or low temperature, acid rain, and indoors, and detect the wear performance of the coating in the above situations, improving the authenticity and reliability of the finally obtained results. Secondly, through the triangular clamping formed by the pressing ring and the two lower pressing plates, the stability during the sample detection process is ensured. By adjusting the locking unit to adjust the magnitude of the downward pressure applied by the abrasion roller, the situation when the coating is subjected to wear forces of different degrees is simulated. In summary, the comprehensiveness of the detection process is improved, and thus the reliability of the detection results is enhanced.

[0020] Second, in the present invention, by inserting the right end of the fixing rod into the locking hole, the rectangular strip, the annular plate, the lower pressing plate, the pressing ring, and the central column are all locked, so that the two lower pressing plates and the pressing ring form a triangular clamping and locking of the sample, improving the stability of the subsequent detection process.

[0021] Third, in the present invention, the U-shaped frame and the pushing circular plate are controlled by the parts of the two operating rods located outside the detection box. While being able to adjust the locking process and the magnitude of the downward pressure, it avoids the contact of the staff with the structures sprayed with acidic liquid, at high temperature or low temperature, ensuring the operation safety of the staff. Description of the Drawings

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on the provided drawings.

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

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

[0025] Figure 3 Shows a partial cross-sectional three-dimensional structural schematic diagram between the rotating seat, the pressing ring, and the driving shaft provided according to an embodiment of the present invention.

[0026] Figure 4 Shows what is provided according to an embodiment of the present invention Figure 3 An enlarged schematic diagram of part A.

[0027] Figure 5 Shows a partial cross-sectional exploded structural schematic diagram between the pressing ring, the pressing plate, and the wedge block provided according to an embodiment of the present invention.

[0028] Figure 6 Shows what is provided according to an embodiment of the present invention Figure 5 An enlarged schematic diagram of part B.

[0029] Figure 7 Shows a right view of the fixed rod, the wedge block, and the wear roller provided according to an embodiment of the present invention.

[0030] Figure 8 Shows a schematic diagram of the marks generated when the sample is subjected to wear detection.

[0031] Among them, the above-mentioned drawings include the following reference numerals: 1, detection box; 2, sealing door; 3, drive shaft; 4, rotating seat; 40, support column; 41, backing plate; 5, clamping unit; 50, pressing rod; 500, lower pressing plate; 501, central column; 502, lower pressing ring; 503, hydraulic cylinder; 504, L-shaped block; 51, transmission group; 510, annular plate; 511, first spring; 512, annular block; 513, rectangular strip; 6, detection mechanism; 60, frame; 600, U-shaped block; 601, wear roller; 602, placement groove; 603, fixing rod; 604, pressing plate; 605, sliding plate; 606, second spring; 62, adjustment and locking unit; 620, U-shaped frame; 621, locking hole; 622, transverse frame; 623, wedge block; 624, card slot; 625, clamping block; 626, installation groove; 627, mounting block; 628, mounting rod; 629, pushing circular plate; 63, simulation component; 630, sprayer; 631, conduit; 632, ultraviolet irradiation lamp; 64, connecting frame; 65, operating rod; 7, template. Detailed implementation manners

[0032] In order to make the above objects, features and advantages of the present invention more obvious and understandable, the following detailed description of the specific implementation manners of the present invention will be made in conjunction with the accompanying drawings. Many specific details are set forth in the following description in order to fully understand 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 departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0033] As Figure 1 、 Figure 2 and Figure 3 shown, a polyurethane waterproof coating performance detection device includes: a detection box 1, the upper end of the detection box 1 is open and a sealing door 2 is arranged at the opening, a drive shaft 3 with a vertical axis is rotatably arranged at the bottom of the detection box 1, the drive 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 detection box 1 through a support column 40 with a vertical axis, a support block is fixedly arranged on the upper end surface of the support column 40, the support block is circumferentially slidably arranged on the lower end surface of the rotating seat 4, and a backing plate 41 is fixedly arranged on the upper end surface of the rotating seat 4.

[0034] As 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 face of the lower pressure rod 50 is fixedly provided with a lower pressure plate 500, and a central column 501 that slides 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 with a telescopic end rotatably connected to the central column 501 is provided on the rear end face 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 provided in the detection box 1, and the detection mechanism 6 includes a frame 60. The frame 60 is fixedly provided at the bottom of the detection box 1 and is located on the right side of the hydraulic cylinder 503. A U-shaped block 600 is provided on the frame 60, and a wear roller 601 is rotatably provided on the U-shaped block 600. 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 of the wear roller 601 on the template 7. A simulation component 63 for simulating actual usage conditions is provided 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. The left end face inside the detection box 1 is fixedly provided with a conduit 631, which guides external hot air or cold air into the detection box 1, and an ultraviolet irradiation lamp 632 is fixedly provided on the sealing door 2.

[0037] During operation, the sample 7 with the coating to be tested formed by the polyurethane waterproof coating is first 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 on 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, and 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 lamp 632 in the simulation component 63 is powered on to irradiate the sample plate 7 for a specified time. After that, the external motor operates to drive the rotating seat 4, the backing plate 41, and the sample plate 7 to rotate synchronously through the drive shaft 3. During the whole-week rotation of the sample plate 7, the abrasion roller 601 detects the waterproof performance of the coating formed by the paint (refer to Figure 8 , the marks formed after the abrasion roller 601 abrades the sample plate 7 are shown in the figure), and then, through the conduit 631 in the simulation component 63 and in cooperation with the external air pump, hot air or cold air is pumped into the detection box 1 to simulate the situation of the coating under different temperature states, and the abrasion resistance of the paint is detected under this situation. Secondly, the acid liquid is sprayed onto the sample plate 7 through the sprayer 630 to simulate the situation after being drenched by acid rain, and the abrasion resistance of the paint is detected under this situation. After that, the detection results of the abrasion resistance of the coating are obtained through various methods such as observing whether the coating is damaged, detecting the change in the thickness of the sample plate, detecting the mass loss of the sample plate, and comparing with the standard. Finally, the waterproof performance of the paint is indirectly reflected through this result. By adjusting the locking unit 62, the downward pressing force of the abrasion roller 601 on the sample plate 7 can be adjusted, so as to simulate the situation of different degrees of wear and conduct the detection.

[0039] In summary, the triangular clamping formed by the pressing ring 502 and the two lower pressing plates 500 ensures the stability of the sample plate 7 during the detection process, and at the same time avoids the problem that the edge of the side of the sample plate 7 far from its rotation center warps and affects the detection process. Secondly, by simulating various situations such as ultraviolet irradiation, temperature change, and acid rain in the simulation component 63, the universality of the device is improved, and at the same time, the reliability and authenticity of the detection results are ensured.

[0040] As Figure 1 , Figure 2 and Figure 3 shown, the clamping unit 5 further includes an L-shaped block 504. The L-shaped block 504 is fixedly arranged on the lower end surface of the lower pressing plate 500, and the two L-shaped blocks 504 are symmetric front and back and the inner corners of both of them face the central column 501.

[0041] During the process of placing the sample plate 7 and the lower pressing plate 500 moving downward to press and limit the sample plate 7, through the mutual cooperation of the two L-shaped blocks 504, the front and back positions of the sample plate 7 in the initial state are limited, assisting the process of placing the sample plate 7, ensuring that the sample plate 7 is placed in the specified position and the subsequent detection process is carried out.

[0042] As Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the transmission group 51 includes an annular plate 510. The lower end faces of the two lower pressing rods 50 are fixedly provided with the annular plate 510. A first spring 511 sleeved on the lower pressing rod 50 is fixedly arranged between the annular plate 510 and the rotating base 4. An annular groove is formed in the lower end face of the annular plate 510. An annular block 512 is slidably arranged in the annular groove. A rectangular bar 513 is fixedly provided on the lower end face of the annular block 512. The rectangular bar 513 is rotatably sleeved on the central column 501. The support column 40 slidably penetrates through the rectangular bar 513 vertically.

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

[0044] During operation, after the template 7 is placed at the specified position on the backing plate 41, the hydraulic cylinder 503 operates to make the lower pressing ring 502 and the central column 501 move downward synchronously. The central column 501 drives the rectangular bar 513 to move synchronously. The annular plate 510 and the two lower pressing rods 50 are driven to move downward synchronously through the annular block 512 on the rectangular bar 513. Therefore, the lower pressing plate 500 and the lower pressing ring 502 move downward synchronously. Finally, the lower pressing plate 500 and the lower pressing ring 502 press the template 7 downward. After the subsequent detection operation is completed, the hydraulic cylinder 503 operates to make the lower pressing ring 502 move upward. The elastic force generated by the deformation of the first spring 511 makes the annular plate 510 drive the lower pressing rod 50 and the lower pressing plate 500 to move upward and reset, facilitating the removal of the template 7.

[0045] As Figure 1 , Figure 2 , Figure 5 and Figure 6 shown, the adjustment and locking unit 62 includes a U-shaped frame 620. A U-shaped frame 620 with a downward U-shaped opening is slidably arranged on the upper end face of the rectangular bar 513 from left to right. A locking hole 621 is formed in the horizontal section of the U-shaped frame 620. After the U-shaped frame 620 moves leftward, the fixed rod 603 penetrates through the locking hole 621, completing the locking of the U-shaped frame 620 and the rectangular bar 513, and indirectly locking the triangular clamping state of the two lower pressing plates 500 and one lower pressing ring 502 on the template 7.

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

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

[0048] As Figure 1 , Figure 5 , Figure 6 and Figure 7 shown, the adjustment locking unit 62 further includes a transverse frame 622. A transverse frame 622 is provided on the vertical section at the rear of the U-shaped frame 620. A wedge block 623 is fixedly arranged on the left end face of the transverse frame 622. The inclined surface of the wedge block 623 is inclined leftward from top to bottom. A card slot 624 is provided on the inclined surface of the wedge block 623. A card block 625 is fixedly arranged on the right end face 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 second spring 606 is compressed, forming the downward pressing force required during the detection process. Then, the card block 625 is inserted into the card slot 624, and the downward pressing force is maintained by the locking method.

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

[0050] During operation, when moving the U-shaped frame 620 to the left, the clamping process is locked when the fixed rod 603 passes through the locking hole 621. After that, the U-shaped frame 620 continues to move leftward. The vertical section on the rear side of the U-shaped frame 620 pushes the push circular plate 629, causing the transverse frame 622 and the wedge block 623 to move leftward synchronously. During the leftward movement of the wedge block 623, through the cooperation between its upper inclined surface and the clamping block 625, the clamping block 625 and the sliding plate 605 gradually move upward and compress the second spring 606. Finally, the clamping block 625 is inserted into the card slot 624 to complete the limit locking of the sliding plate 605. At this time, the elastic force generated by the deformation of the second spring 606 acts on the rear end part of the pressure plate 604, and the front end of the pressure plate 604 drives the wear roller 601 to generate a downward acting force. Then, the external motor works to drive the central column 501 and the template 7 to rotate circumferentially through the drive shaft 3. During the rotation process, the wear roller 601 applies a downward pressure force on the template 7 to simulate the situation when it is worn, and the wear resistance of the coating is detected under this situation, and the detection result of the waterproof performance is reflected through the detection result, that is, by observation.

[0051] When it is necessary to adjust the magnitude of the downward pressure force, the specific operation is as follows: Move the U-shaped frame 620 to the right so that the U-shaped frame 620 drives the wedge block 623 to move rightward synchronously. However, during the rightward movement, keep the fixed rod 603 passing through the locking hole 621, that is, keep the locking state of the template 7 after being clamped. First, move the push circular plate 629 and the transverse frame 622 to the left so that the transverse frame 622 disengages from the mounting groove 626. Then, move the transverse frame 622 upward. By inserting and matching the transverse frame 622 with mounting grooves 626 at different heights, the height of the transverse frame 622 is changed, that is, the required height for the clamping block 625 to move upward and cooperate with the card slot 624 is adjusted. The specific process is as follows: When the transverse frame 622 is adjusted to cooperate with the upper mounting groove 626, during the subsequent cooperation between the wedge block 623 and the clamping block 625, the sliding plate 605 needs to move upward a greater distance than in the previous process to make the clamping block 625 cooperate with the card slot 624. Therefore, the degree of compression of the second spring 606 needs to be increased, that is, indirectly increasing the downward pressure force of the wear roller 601 on the template 7. After completing the height adjustment of the transverse frame 622, move the U-shaped frame 620 to the left to complete the adjustment of the magnitude of the downward pressure force, and repeat the detection process.

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

[0053] Such as Figure 1 、 Figure 2 、 Figure 5 and Figure 6As shown, an L-shaped connecting frame 64 is fixedly arranged on the pushing circular plate 629. Operating rods 65 with axes extending from left to right are fixedly arranged on the right end faces of both the connecting frame 64 and the U-shaped frame 620. The front operating rod 65 is slidably arranged left and right on the right end face of the detection box 1, and the rear operating rod 65 penetrates through the detection box 1.

[0054] After the sealing door 2 is closed, manually move the parts of the two operating rods 65 outside the detection box 1 to move the U-shaped frame 620 left and right and move the pushing circular plate 629, so as to lock the clamping process and adjust the pressing force, avoiding direct contact between the staff and the structures inside the detection box 1, and further avoiding contact with high-temperature or low-temperature or structures sprayed with acidic liquids.

[0055] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description. Without contrary description, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, so it cannot be understood as a limitation on the protection scope of the present invention; the orientation words "inside, outside" refer to the inside and outside relative to the contour of each component itself.

[0056] In addition, the terms "first", "second", "No. 1", "No. 2" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", "No. 1", "No. 2" may explicitly or implicitly include at least one of such features. In the description of the present invention, "a plurality" means at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0057] In the description of the present invention, it should also be noted that unless otherwise clearly specified and limited, the terms "arranged", "connected", "installed", "connected" 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0058] The embodiments of the present specific implementation manners are all preferred embodiments of the present invention, and do not limit the protection scope of the present invention accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention should be covered within the protection scope of the present invention.

Claims

1. A device for detecting the performance of a polyurethane waterproof coating, characterized in that, Including: A detection box, the upper end of the detection 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 detection box. A rotating seat is provided on the inner bottom of the detection box through a support column with a vertical axis. A support block is fixedly provided on the upper end surface of the support column. The support block is circumferentially slidably arranged on the lower end surface of the rotating seat. A backing plate is fixedly provided on the upper end surface of the rotating seat; A clamping unit for clamping and locking a template is provided on the rotating seat. The clamping unit includes two pressing rods that are distributed front and back and slide up and down and penetrate through the rotating seat. A lower pressing plate is fixedly provided on the upper end surface of the pressing rod. A central column that slides up and down is provided on the driving shaft. A lower pressing ring located above the backing plate 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. A transmission group is provided at the lower end of the rotating seat; A detection mechanism is provided inside the detection box. The detection mechanism includes a frame fixedly provided on the inner bottom of the detection box on the right side of the hydraulic cylinder. A U-shaped block is provided on the frame. A wear roller is rotatably provided on the U-shaped block. An adjustment and locking unit is provided on the frame. The adjustment and locking unit first locks the clamping of the two lower pressing plates and the lower pressing ring, so that the three form a triangular stable clamping, and then adjusts the magnitude of the downward pressing force of the wear roller on the template. A simulation component for simulating the actual use situation is provided inside the detection box; The detection mechanism further includes a placement groove opened on the upper end surface of the frame. A fixing rod with an axis extending from left to right is fixedly penetrated through the placement groove. A pressing plate is rotatably sleeved on the fixing rod. The U-shaped block is fixedly provided on the front end surface of the pressing plate. A sliding plate slides up and down on the rear end surface of the frame. A second spring is fixedly provided between the sliding plate and the rear end of the pressing plate; The adjustment and locking unit includes a U-shaped frame with a downward U-shaped opening that slides left and right on the upper end surface of a rectangular bar. A locking hole is opened on the horizontal section of the U-shaped frame. After the U-shaped frame moves leftward, the fixing rod penetrates through the locking hole to complete the locking of the U-shaped frame and the rectangular bar, indirectly locking the triangular clamping of the two lower pressing plates and a lower pressing ring on the template; The adjustment and locking unit further includes a transverse frame on the vertical section at the rear of the U-shaped frame. A wedge block is fixedly provided on the left end surface of the transverse frame. The inclined surface of the wedge block inclines leftward from top to bottom. A clamping groove is opened on the inclined surface of the wedge block. A clamping block is fixedly provided on the right end surface of the sliding plate. During the leftward movement of the wedge block, its inclined surface drives the sliding plate to move upward, so that the second spring is compressed to form the downward pressing force required during the detection process. Then, the clamping block is snapped into the clamping groove to maintain the downward pressing force by locking; A plurality of installation grooves that are equidistantly arranged from top to bottom and penetrate left and right are opened on the vertical section at the rear of the U-shaped frame. An installation block is fixedly provided on the left end surface of the U-shaped frame. An installation rod that penetrates up and down is slidably provided on the installation block. The lower end surface of the installation rod is slidably arranged on the upper end surface of the transverse frame through a moving block. A pushing circular plate is fixedly sleeved on the transverse frame.

2. The performance detection device for a polyurethane waterproof coating according to claim 1, characterized in that: The simulation component includes a sprayer. A sprayer for spraying acidic liquid is provided on the rear end surface inside the detection box. A conduit is fixedly provided on the left end surface inside the detection box. An ultraviolet irradiation lamp is fixedly provided on the sealing door.

3. The performance detection device for a polyurethane waterproof coating according to claim 1, wherein: The clamping unit further includes an L-shaped block. The L-shaped block is fixedly provided on the lower end surface of the lower pressing plate, and the two L-shaped blocks are symmetric front and back and the inner corners of both face the central column.

4. The performance detection device for a polyurethane waterproof coating according to claim 1, characterized in that: The transmission group includes an annular plate. The lower end faces of the two lower pressing rods are jointly and fixedly provided with an annular plate. A first spring sleeved on the lower pressing rod is jointly and fixedly provided between the annular plate and the rotating seat. An annular groove is formed in the lower end face of the annular plate. An annular block is slidably arranged in the annular groove. A rectangular strip is fixedly provided on the lower end face of the annular block. The rectangular strip is rotatably sleeved on the central column. The support column slidably penetrates through the rectangular strip up and down.

5. The performance detection device for a polyurethane waterproof coating according to claim 1, characterized in that: The left end face of the inner wall of the locking hole and the right end face of the fixed rod are both chamfered.

6. The performance detection device for a polyurethane waterproof coating according to claim 1, wherein: An L-shaped connecting frame is fixedly provided on the pushing circular plate. Operating rods with axes extending from left to right are fixedly provided on the right end faces of the connecting frame and the U-shaped frame. The front operating rod is slidably arranged left and right on the right end face of the detection box, and the rear operating rod penetrates through the detection box.

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