A device for detecting expansion rate of sealant

Abstract

The present invention relates to the technical field of caulking agent detection, and discloses a caulking agent expansion rate detection device, comprising a measuring cylinder containing a liquid to be tested, a circular ring provided on the measuring cylinder, a fixing mechanism provided on the circular ring for fixing the circular ring on the measuring cylinder, a support platform provided on the circular ring, a detection column movably plugged into the support platform, a floating plate slidably provided on the circular ring and sleeved on the detection column, a movable sleeve movably plugged into the end of the detection column, and an advantage of the present invention over the prior art is that the result is read by providing the floating plate, the detection mechanism, the detection column and the movable sleeve, thereby avoiding manual reading of the measuring cylinder and the occurrence of errors, and making the result more objective and accurate.

Description

Technical Field

[0001] The present invention relates to the technical field of gap filler detection, in particular to a gap filler expansion rate detection device. Background Art

[0002] Cement-based caulking agents are commonly used for filling gaps in tiles, repairing cracks in concrete structures, and treating stone joints. Cement-based caulking agents are alkaline and undergo a hydration reaction after mixing with water, gradually hardening to form a solid caulking material. This hydration reaction enables the caulking agent to bond tightly with substrates such as tiles and stone.

[0003] To ensure the quality of caulk, it is necessary to test its free expansion rate and free water bleeding rate, which reflect the caulk's deformation ability and water retention capacity. When testing the caulk's expansion rate and water bleeding rate, the caulk is usually first mixed with water and stirred. Once stirred evenly, the test liquid is poured into a graduated cylinder, and the initial position is recorded. A glass cover is then placed on the upper end of the graduated cylinder. After a period of time, the position of the test liquid in the graduated cylinder will change. The free water bleeding rate requires determining the amount of precipitated water, that is, the clear liquid floating above the test liquid, and then comparing it with the total mass to obtain the free water bleeding rate. The free expansion rate requires measuring the changed volume minus the initial volume, and then calculating the ratio to the initial volume to obtain the free expansion rate. Currently, reading the graduated cylinder is mostly done manually, which requires looking straight ahead. Because water tension forms a concave meniscus, it is necessary to read the lowest mark on the scale. Slight deviations in the reading angle and reflections from ambient light can cause deviations in the final reading, resulting in inaccurate test results. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the above difficulties and provide a device for detecting the expansion rate of a sealant.

[0005] In order to solve the above technical problems, the technical solution provided by the present invention is: a sealant expansion rate detection device, including a measuring cylinder, the measuring cylinder is filled with a liquid to be tested, the measuring cylinder is provided with a ring, the ring is provided with a fixing mechanism for fixing the ring on the measuring cylinder, the ring is provided with a support platform, the support platform is movably connected to a detection column, the ring is slidably provided with a floating plate sleeved on the detection column, the end of the detection column is movably connected to a movable sleeve, the support platform is provided with a detection mechanism 1 for determining the liquid level height, and the support platform is provided with a detection mechanism 2 for detecting the expansion height.

[0006] As an improvement, the detection mechanism includes two connecting ropes on the floating plate, and the support platform is provided with corresponding support frames on both sides. A rotating shaft is provided between the two support frames, and a guide roller corresponding to the connecting rope is provided on the rotating shaft. A micrometer is provided on the support platform, and an indicator plate is provided on the micrometer for sliding. The connecting rope is wrapped around the guide roller and fixedly connected to the bottom surface of the indicator plate.

[0007] As an improvement, the second detection mechanism includes a second micrometer arranged on a support platform, a socket is provided on the detection column, a lifting column is movably inserted into the socket, one end of the lifting column is abutted against the movable sleeve, and the other end of the lifting column is in the same plane as the end of the detection column, and an indicator plate 2 is slidably provided on the second micrometer, and the other end of the indicator plate 2 is connected to the detection column.

[0008] As an improvement, a U-shaped plate is provided at the end of the detection column, an indicator light is provided on the U-shaped plate, and a proximity switch for controlling the on and off of the indicator light is provided on the U-shaped plate above the jacking column.

[0009] As an improvement, a sealing cover is slidably provided on the ring below the support platform, the sealing cover is provided with a through hole that cooperates with the movable sleeve and the connecting rope, and the sealing cover is provided with a connecting column that passes through the support platform.

[0010] As an improvement, the density of the floating plate is less than that of water, and the density of the movable sleeve is greater than that of water and less than that of the liquid to be tested. The floating plate will float on the water surface, and the movable sleeve will sink into the water and float on the liquid to be tested.

[0011] As an improvement, the fixing mechanism includes a groove on the circular ring, a connecting rod is provided for rotation in the groove, a rubber block is provided at the end of the connecting rod for abutting the inner wall of the measuring cylinder, a slide rail is provided on the circular ring above the groove, a slide rod is provided for sliding on the slide rail, a push column is provided on the bottom surface of the slide rod, a slide groove cooperating with the push column is provided on the connecting rod, a threaded sleeve is provided on the circular ring, a threaded ring is threadedly connected to the threaded sleeve, and a pressure ring is provided on the slide rod for abutting the bottom surface of the threaded ring.

[0012] The advantages of the present invention compared with the prior art are:

[0013] 1. By setting the ring and fixing mechanism, the ring can be stably placed above the measuring cylinder, providing stable support for subsequent testing;

[0014] 2. By setting up a floating plate and a detection mechanism, since the density of the floating plate is less than that of water, the floating plate will float on the precipitated water. The floating plate is set small and will not affect the concave liquid surface of the water. Then, the detection value is read by the detection mechanism, thereby avoiding manual reading of the graduated cylinder and the error;

[0015] 3. By setting up the detection column and the movable sleeve, when testing the free expansion rate, the movable sleeve will sink into the water and float on the liquid to be tested because the density of the movable sleeve is greater than that of water and the liquid to be tested. At this time, the detection value is read by the second detection mechanism, and the result is accurate to prevent manual reading, which may cause the reading to be too large or too small due to the unclear boundary between the precipitated water and the liquid to be tested. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a stereoscopic diagram of a device for detecting expansion rate of a caulking agent according to the present invention.

[0017] Figure 2 It is a cross-sectional view of a device for detecting the expansion rate of a caulking agent according to the present invention.

[0018] Figure 3 This invention is a device for detecting the expansion rate of a sealant Figure 2 Enlarged view of point A in the middle.

[0019] Figure 4 The present invention is a schematic diagram of a detection mechanism of a device for detecting expansion rate of a caulking agent.

[0020] Figure 5 The present invention is a schematic diagram of two parts of a detection mechanism of a device for detecting expansion rate of a caulking agent.

[0021] Figure 6 It is an exploded view of a fixing mechanism of a device for detecting expansion rate of a caulking agent according to the present invention.

[0022] Figure 7 The present invention is a cross-sectional view of a fixing mechanism of a device for detecting expansion rate of a caulking agent.

[0023] Figure 8 It is an exploded view of two parts of a detection mechanism of a device for detecting expansion rate of a caulking agent according to the present invention.

[0024] Figure 9 This is a cross-sectional view showing the positional relationship of a device for detecting the expansion rate of a caulking agent according to the present invention.

[0025] As shown in the figure: 1. Measuring cylinder; 2. Fixing mechanism; 21. Groove; 22. Connecting rod; 23. Rubber block; 24. Slide rail; 25. Slide rod; 26. Push column; 27. Slide groove; 28. Threaded sleeve; 29. ​​Threaded ring; 210. Pressure ring; 3. Circular ring; 31. Support platform; 4. Detection column; 5. Floating plate; 51. U-shaped plate; 52. Indicator light; 53. Proximity switch; 54. Limit block; 55. Limit groove; 6. Detection mechanism 1; 61. Connecting rope; 62. Support frame; 63. Rotating shaft; 64. Guide roller; 65. Micrometer 1; 66. Indicator plate 1; 67. Pointer 1; 7. Detection mechanism 2; 71. Micrometer 2; 72. Socket; 73. Lifting column; 74. Indicator plate 2; 75. Pointer 2; 8. Sealing cover; 81. Connecting column; 9. Movable sleeve. DETAILED DESCRIPTION

[0026] The present invention will be described in further detail below with reference to the accompanying drawings.

[0027] Combined with attachment Figure 1 , Attachment Figure 2As shown, a device for detecting the expansion rate of a caulking agent includes a measuring cylinder 1, the measuring cylinder 1 containing a liquid to be measured, a circular ring 3 provided on the measuring cylinder 1, a fixing mechanism 2 for fixing the circular ring 3 to the measuring cylinder 1, a support platform 31 provided on the circular ring 3, a detection column 4 movably connected to the support platform 31, a floating plate 5 slidably provided on the circular ring 3 and sleeved on the detection column 4, a movable sleeve 9 movably connected to the end of the detection column 4, a detection mechanism 1 6 for determining the liquid level height provided on the support platform 31, and a detection mechanism 2 7 for detecting the expansion height provided on the support platform 31;

[0028] The movable sleeve 9 is provided with a plurality of limit blocks 54 , and the detection column 4 is provided with a limit groove 55 that cooperates with the limit blocks 54 ;

[0029] The density of the floating plate 5 is less than that of water, and the density of the movable sleeve 9 is greater than that of water and less than that of the liquid to be tested. The floating plate 5 will float on the water surface, and the movable sleeve 9 will sink into the water and float on the liquid to be tested.

[0030] The working principle of the present invention is as follows: Since the float 5 will displace a certain volume of water when placed on the water surface, before use, the float 5 is placed on the water surface of the same graduated cylinder 1 to calculate the displacement volume. The float 5 is made of a hydrophobic material, such as paraffin or Teflon. These materials have a lower density than water and are hydrophobic, thus having less impact on the concave liquid surface of the water. The length is selected to be less than one-third of the diameter of the graduated cylinder 1 so that when the float 5 is placed, it can land on the concave liquid surface, making the result more accurate. During the test, a certain amount of the test liquid is first added to the graduated cylinder 1. At this time, the initial volume is known. When the float 5 lands on the water surface, the initial volume is measured by the detection mechanism 6.

[0031] After a period of time, clear water will precipitate above the test liquid, and then the test column 4 is placed. The density of the movable sleeve 9 at the end of the test column 4 is greater than that of water and less than that of the test liquid. The density of water is about 1.0 g / cm³, and the density of the test liquid after the cement-based caulking agent and water are mixed is about 1.8-2.0 g / cm³, which is twice the density of water. The material of the movable sleeve 9 can be selected from polyvinyl chloride and polyethylene terephthalate, and its density is between 1.3-1.45g / cm³. When the movable sleeve 9 is located above the test liquid, it stops, and then the result at this time is measured, and then the free expansion rate and free water bleeding rate are calculated.

[0032] Combined with attachment Figure 1 , Attachment Figure 2 , Attachment Figure 3 , Attachment Figure 4 , Attachment Figure 9As shown, the detection mechanism 6 includes two connecting ropes 61 on the floating plate 5, and the support platform 31 is provided with support frames 62 arranged correspondingly on both sides. A rotating shaft 63 is rotatably provided between the two support frames 62, and a guide roller 64 corresponding to the connecting rope 61 is provided on the rotating shaft 63. A micrometer 65 is provided on the support platform 31, and an indicator plate 66 is slidably provided on the micrometer 65. The connecting rope 61 is wrapped around the guide roller 64 and is fixedly connected to the bottom surface of the indicator plate 66. A pointer 67 cooperating with the micrometer 65 is provided at one end of the indicator plate 66.

[0033] Working principle of detection mechanism 16: It is known that the length of measuring cylinder 1 is L0. In the initial state, the bottom surface of float 5 and the end of measuring cylinder 1 are in the same plane, and connecting rope 61 is in a taut state. When it is necessary to detect the free water seepage rate, a certain amount of test liquid is added to measuring cylinder 1. At this time, the distance from the surface of the test liquid to the upper end of measuring cylinder 1 can be measured by detection mechanism 27, which is L1. Then wait for a period of time. At this time, water precipitates from the test liquid. Since the density of water is less than the density of the test liquid, it floats on the top. Then place float 5. Float 5 moves under its own gravity, thereby driving connecting rope 61 to move, thereby driving guide roller 64 to rotate, and indicator plate 166 at the end of connecting rope 61 moves downward. When float 5 is on the water surface, float 5 no longer moves. At this time, the position of pointer 167 on indicator plate 166 is recorded, and the descending position is read by micrometer 165, which is L2.

[0034] Combined with attachment Figure 2 , Attachment Figure 3 , Attachment Figure 4 , Attachment Figure 5 , Attachment Figure 8 , Attachment Figure 9 As shown, the detection mechanism 7 includes a micrometer 71 arranged on the support platform 31, a socket 72 is provided on the detection column 4, and a lifting column 73 is movably inserted in the socket 72, one end of the lifting column 73 is in contact with the movable sleeve 9, and the other end of the lifting column 73 is in the same plane as the end of the detection column 4, an indicator plate 74 is slidably provided on the micrometer 71, the other end of the indicator plate 74 is connected to the detection column 4, and one end of the indicator plate 74 is provided with a pointer 75 that cooperates with the micrometer 71.

[0035] Working principle of detection mechanism 2 7: Press the detection column 4 downward, the detection column 4 drives the movable sleeve 9 to move downward, and at the same time drives the indicator plate 2 74 to move downward, passing through the precipitated supernatant. When the end of the movable sleeve 9 contacts the liquid to be tested, the density of the movable sleeve 9 is less than that of the liquid to be tested, so the movable sleeve 9 does not move, and the detection column 4 continues to move downward. At the same time, the end of the lifting column 73 abuts against the movable sleeve 9, so the lifting column 73 moves upward relative to the movable sleeve 9. When the end of the detection column 4 contacts the liquid to be tested, the movable sleeve 9 is moved upward relative to the movable sleeve 9. When the bottom surface of the movable sleeve 9 is in contact, stop pressing the detection column 4, and then record the position where the pointer 2 75 points to the micrometer 2 71 at this time, which is L3. At this time, the free expansion rate is (L0-L3)-(L0-L1) / (L0-L1)*100%, and the free water bleeding rate is (L0-L1)-(L0-L2). The height of the precipitated liquid is obtained, and then it is converted into volume according to the micrometer and the measuring cylinder 1 to obtain V volume, and then compared with the initial liquid to be tested to obtain the free water bleeding rate.

[0036] Combined with attachment Figure 4 , Attachment Figure 5 , Attachment Figure 8 As shown, a U-shaped plate 51 is provided at the end of the detection column 4, an indicator light 52 is provided on the U-shaped plate 51, and a proximity switch 53 for controlling the on and off of the indicator light 52 is provided on the U-shaped plate 51 above the lifting column 73.

[0037] Working principle: In order to accurately obtain the distance between the expanded test liquid and the measuring cylinder 1, a U-shaped plate 51 is set, and an indicator light 52 and a proximity switch 53 are set on the U-shaped plate 51. When the detection column 4 contacts the inner bottom surface of the movable sleeve 9, the top of the lifting column 73 is close to the proximity switch 53, and the proximity switch 53 controls the indicator light 52 to light up, so that the reading result can be more accurate. When in use, by adjusting the position of the proximity switch 53 and the lifting column 73, it is ensured that when the detection column 4 contacts the inner bottom surface of the movable sleeve 9, the proximity switch 53 controls the indicator light 52 to light up.

[0038] Combined with attachment Figure 2 , Attachment Figure 3 , Attachment Figure 9 As shown, a sealing cover 8 is slidably provided on the ring 3 below the support platform 31 . The sealing cover 8 is provided with a through hole that cooperates with the movable sleeve 9 and the connecting rope 61 . The sealing cover 8 is provided with a connecting column 81 that passes through the support platform 31 .

[0039] Working principle: When the liquid to be tested is poured into the measuring cylinder 1, in order to prevent the external air from affecting the result, a sealing cover 8 is provided to block the middle of the ring 3, thereby ensuring the accuracy of the test result.

[0040] Combined with attachment Figure 2 , Attachment Figure 3 , Attachment Figure 6 , Attachment Figure 7 , Attachment Figure 9 As shown, the fixing mechanism 2 includes a groove 21 on the ring 3, a connecting rod 22 is rotatably provided in the groove 21, and a rubber block 23 is provided at the end of the connecting rod 22 to abut against the inner wall of the measuring cylinder 1, and a slide rail 24 is provided on the ring 3 above the groove 21, a slide rod 25 is slidably provided on the slide rail 24, a push column 26 is provided on the bottom surface of the slide rod 25, and a slide groove 27 cooperating with the push column 26 is provided on the connecting rod 22, a threaded sleeve 28 is provided on the ring 3, a threaded ring 29 is threadedly connected to the threaded sleeve 28, and a pressure ring 210 is provided on the slide rod 25 to abut against the bottom surface of the threaded ring 29.

[0041] Working principle: In order to ensure the accuracy of the reading, the end of the ring 3 needs to fit into the end of the measuring cylinder 1. The ring 3 is fixed on the measuring cylinder 1 by setting a fixing mechanism 2. Specifically, the ring 3 is placed on the measuring cylinder 1, and then the threaded ring 29 is rotated. The threaded ring 29 moves downward, thereby pushing the pressure ring 210 to move downward, and the pressure ring 210 drives the slide rod 25 on the slide rail 24 to move downward. The slide rod 25 drives the push column 26 to move downward, and the push column 26 pushes the connecting rod 22 to move. Since the connecting rod 22 is hinged in the groove 21, the connecting rod 22 rotates, causing the rubber block 23 to rotate outward and abut against the inner wall of the measuring cylinder 1, so that the center of the ring 3 and the measuring cylinder 1 can be at the same position while being fixed.

[0042] In specific use, place the measuring cylinder 1 on a flat place, then mix the caulking agent with water and stir. After mixing, pour it into the measuring cylinder 1. When pouring, make sure that the liquid to be tested is poured from the middle position of the measuring cylinder 1 to prevent the liquid to be tested from adhering to the inner wall of the measuring cylinder 1, resulting in inaccurate volume. During testing, slowly put in the floating plate 5 and the test column 4 to prevent the liquid from splashing onto the inner wall of the measuring cylinder 1 due to too fast placement, resulting in errors in the test results.

[0043] The present invention and its embodiments are described above. This description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by this and, without departing from the purpose of the present invention, designs structures and embodiments similar to this technical solution without inventiveness, they shall fall within the scope of protection of the present invention.

Claims

1. A device for detecting the expansion rate of a sealant, comprising a measuring cylinder (1) containing a liquid to be measured, characterized in that: The measuring cylinder (1) is provided with a ring (3), the ring (3) is provided with a fixing mechanism (2) for fixing the ring (3) on the measuring cylinder (1), the ring (3) is provided with a support platform (31), a detection column (4) is movably connected to the support platform (31), a floating plate (5) sleeved on the detection column (4) is slidably provided on the ring (3), a movable sleeve (9) is movably connected to the end of the detection column (4), a detection mechanism (6) for determining the liquid level is provided on the support platform (31), and a detection mechanism (7) for detecting the expansion height is provided on the support platform (31); The detection mechanism (6) includes two connecting ropes (61) on the floating plate (5), the support platform (31) is provided with supporting frames (62) arranged on both sides thereof, a rotating shaft (63) is provided between the two supporting frames (62), a guide roller (64) corresponding to the connecting rope (61) is provided on the rotating shaft (63), a micrometer (65) is provided on the support platform (31), an indicator plate (66) is provided on the micrometer (65) for sliding, and the connecting rope (61) is wound around the guide roller (64) and fixedly connected to the bottom surface of the indicator plate (66); The second detection mechanism (7) includes a second micrometer (71) arranged on the support platform (31), a socket (72) is provided on the detection column (4), a lifting column (73) is movably inserted in the socket (72), one end of the lifting column (73) is in contact with the movable sleeve (9), and the other end of the lifting column (73) is in the same plane as the end of the detection column (4), and an indicator plate (74) is slidably provided on the second micrometer (71), and the other end of the indicator plate (74) is connected to the detection column (4); The density of the floating plate (5) is less than that of water, and the density of the movable sleeve (9) is greater than that of water and less than that of the liquid to be tested. The floating plate (5) will float on the water surface, and the movable sleeve (9) will sink into the water and float on the liquid to be tested.

2. A device for detecting expansion rate of a sealant according to claim 1, characterized in that: A U-shaped plate (51) is provided at the end of the detection column (4), an indicator light (52) is provided on the U-shaped plate (51), and a proximity switch (53) for controlling the on and off of the indicator light (52) is provided on the U-shaped plate (51) above the jacking column (73).

3. The device for detecting the expansion rate of a sealant according to claim 1, wherein: A sealing cover (8) is slidably provided on the ring (3) below the support platform (31), the sealing cover (8) is provided with a through hole that cooperates with the movable sleeve (9) and the connecting rope (61), and the sealing cover (8) is provided with a connecting column (81) that passes through the support platform (31).

4. The device for detecting the expansion rate of a sealant according to claim 1, wherein: The fixing mechanism (2) includes a groove (21) on the ring (3), a connecting rod (22) is rotatably provided in the groove (21), and a rubber block (23) is provided at the end of the connecting rod (22) for abutting against the inner wall of the measuring cylinder (1). A slide rail (24) is provided on the ring (3) above the groove (21), a slide rod (25) is slidably provided on the slide rail (24), a push column (26) is provided on the bottom surface of the slide rod (25), a slide groove (27) matched with the push column (26) is provided on the connecting rod (22), a threaded sleeve (28) is provided on the threaded sleeve (28), and a threaded ring (29) is threadedly connected to the threaded sleeve (28), and a pressure ring (210) is provided on the slide rod (25) for abutting against the bottom surface of the threaded ring (29).

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