Detection device for expansion rate of joint mixture

Abstract

The invention relates to the technical field of joint mixture detection, and discloses a joint mixture expansion rate detection device which comprises a measuring cylinder, to-be-detected liquid is contained in the measuring cylinder, a circular ring is arranged on the measuring cylinder, a fixing mechanism for fixing the circular ring on the measuring cylinder is arranged on the circular ring, a supporting table is arranged on the circular ring, and a detection column is movably inserted into the supporting table. Compared with the prior art, the device has the advantages that results are read by arranging the floating plate, the first detection mechanism, the detection column and the movable sleeve, so that errors caused by manual reading of the measuring cylinder are avoided, and the results are more objective and accurate.

Description

Technical Field

[0001] The present invention relates to the technical field of sealant detection, and specifically refers to a sealant expansion rate detection device. Background Art

[0002] Cement-based sealants are commonly used in tile joint filling, concrete structure crack repair, and stone joint treatment. Cement-based sealants are alkaline and undergo a hydration reaction after being mixed with water, gradually hardening to form a solid sealant material. This hydration reaction enables the sealant to tightly bond with substrates such as tiles and stones.

[0003] To ensure the quality of the sealant, it is necessary to detect its free expansion rate and free bleeding rate to reflect the deformation ability and water retention ability of the sealant. When detecting the expansion rate and bleeding rate of the sealant, usually, the sealant is first mixed with water and then stirred. After stirring evenly, the test solution is poured into a graduated cylinder, and the initial position is recorded. Then, the graduated cylinder is covered with a glass lid at the upper end. After waiting for a period of time, the position of the test solution in the graduated cylinder will change. For the free bleeding rate, it is necessary to determine the amount of water separated, that is, the clear liquid floating above the test solution, and then obtain the free bleeding rate by comparing it with the total mass. For the free expansion rate, it is necessary to measure the volume after the change minus the initial volume, and then obtain the free expansion rate by comparing it with the initial volume. Currently, when reading the graduated cylinder reading, most are manual readings. Manual readings require looking straight, and due to the surface tension of water, a concave liquid level will be formed, and it is necessary to read the scale at the lowest position. If there is a slight deviation in the reading angle and the influence of ambient light reflection, etc., the final reading will deviate, 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 sealant expansion rate detection device.

[0005] To solve the above technical problem, the technical solution provided by the present invention is: a sealant expansion rate detection device, including a graduated cylinder with a test solution contained therein. A circular ring is provided on the graduated cylinder, and a fixing mechanism for fixing the circular ring on the graduated cylinder is provided on the circular ring. A support platform is provided on the circular ring, and a detection column is movably inserted into the support platform. A floating plate sleeved on the detection column is slidably provided on the circular ring. An end of the detection column is movably inserted with a movable sleeve. A first detection mechanism for determining the liquid level height is provided on the support platform, and a second detection mechanism for detecting the expansion height is provided on the support platform.

[0006] As an improvement, the first detection mechanism includes two connecting ropes on the floating plate. Support frames are provided on the support platform and arranged corresponding to both sides. A rotating shaft is rotatably provided between the two support frames, and a guide roller corresponding to the connecting rope is provided on the rotating shaft. A first micrometer is provided on the support platform, and an indicating plate one is slidably provided on the first micrometer. The connecting rope is wound around the guide roller once and fixedly connected to the bottom surface of the indicating plate one.

[0007] As an improvement, the second detection mechanism includes a micrometer two arranged on the support table. There is a jack on the detection column, and a jacking column is movably inserted into the jack. One end of the jacking column abuts against the movable sleeve, and the other end of the jacking column is in the same plane as the end of the detection column. A second indicating plate is slidably arranged on the micrometer two, and the other end of the second indicating plate is connected to the detection column.

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

[0009] As an improvement, a sealing cover is slidably arranged below the support table on the ring. The sealing cover is provided with through holes for cooperating with the movable sleeve and the connecting rope, and a connecting column penetrating the support table is arranged on the sealing cover.

[0010] As an improvement, the density of the floating plate is less than the density of water, and the density of the movable sleeve is greater than the density of water and less than the density of the liquid to be measured. 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 measured.

[0011] As an improvement, the fixing mechanism includes a groove on the ring. A connecting rod is rotatably arranged in the groove. A rubber block abutting against the inner wall of the measuring cylinder is arranged at the end of the connecting rod. A slide rail is arranged above the groove on the ring. A sliding rod is slidably arranged on the slide rail. A pushing column is arranged on the bottom surface of the sliding rod. A sliding groove for cooperating with the pushing column is arranged on the connecting rod. A threaded sleeve is arranged on the ring, and a threaded ring is threadedly connected to the threaded sleeve. A pressing ring abutting against the bottom surface of the threaded ring is arranged on the sliding rod.

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

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

[0014] 2. By arranging the floating plate and the first detection mechanism, since the density of the floating plate is less than the density of water, the floating plate will float on the separated water. And the floating plate is small and will not affect the concave liquid surface of the water. Then, the detection value is read through the first detection mechanism, thus avoiding the error caused by manual reading of the measuring cylinder reading;

[0015] 3. By arranging the detection column and the movable sleeve, when detecting the free expansion rate, since the density of the movable sleeve is greater than that of water and less than that of the liquid to be measured, the movable sleeve will sink into the water and float on the liquid to be measured. At this time, the detection value is read through the second detection mechanism, and the result is accurate to prevent the reading from being too large or too small due to the unclear boundary between the separated water and the liquid to be measured when reading manually. Description of the Drawings

[0016] Figure 1 It is a perspective view of a caulking agent expansion rate detection device of the present invention.

[0017] Figure 2 It is a sectional view of a caulking agent expansion rate detection device of the present invention.

[0018] Figure 3 It is a caulking agent expansion rate detection device of the present invention Figure 2 and the enlarged view at position A in it.

[0019] Figure 4 It is a schematic diagram of detection mechanism 1 of a caulking agent expansion rate detection device of the present invention.

[0020] Figure 5 It is a partial schematic diagram of detection mechanism 2 of a caulking agent expansion rate detection device of the present invention.

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

[0022] Figure 7 It is a sectional view of the fixing mechanism of a caulking agent expansion rate detection device of the present invention.

[0023] Figure 8 It is an exploded view of part of detection mechanism 2 of a caulking agent expansion rate detection device of the present invention.

[0024] Figure 9 It is a sectional view of the positional relationship of a caulking agent expansion rate detection device of 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 bar; 26. Push column; 27. Chute; 28. Threaded sleeve; 29. Threaded ring; 210. Pressing ring; 3. Ring; 31. Support platform; 4. Detection column; 5. Floating plate; 51. U-shaped plate; 52. Indicator light; 53. Proximity switch; 54. Limiting block; 55. Limiting groove; 6. Detection mechanism 1; 61. Connecting rope; 62. Support frame; 63. Rotating shaft; 64. Guide roller; 65. Micrometer 1; 66. Indicator board 1; 67. Pointer 1; 7. Detection mechanism 2; 71. Micrometer 2; 72. Jack; 73. Lifting column; 74. Indicator board 2; 75. Pointer 2; 8. Sealing cover; 81. Connecting column; 9. Movable sleeve. Detailed implementation method

[0026] The following further elaborates on the present invention in conjunction with the attached drawings.

[0027] Combined with the attached Figure 1 and the attached Figure 2As shown in the figure, a detection device for the expansion rate of caulking agent includes a graduated cylinder 1 filled with a liquid to be tested. A ring 3 is provided on the graduated cylinder 1, and a fixing mechanism 2 for fixing the ring 3 on the graduated cylinder 1 is provided on the ring 3. A support platform 31 is provided on the ring 3, and a detection column 4 is movably inserted on the support platform 31. A floating plate 5 sleeved on the detection column 4 is slidably provided on the ring 3. An end of the detection column 4 is movably inserted with a movable sleeve 9. A first detection mechanism 6 for determining the liquid level height is provided on the support platform 31, and a second detection mechanism 7 for detecting the expansion height is provided on the support platform 31;

[0028] A plurality of limit blocks 54 are provided on the movable sleeve 9, and limit grooves 55 cooperating with the limit blocks 54 are provided on the detection column 4;

[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: Since a certain volume of water will be displaced when the floating plate 5 is placed on the water surface, before use, the floating plate 5 is placed on the water surface in the same graduated cylinder 1 to calculate the drainage volume. The material of the floating plate 5 is selected as a hydrophobic material, such as paraffin, Teflon and other materials. These materials have a density smaller than that of water and are hydrophobic, so the influence on the concave liquid surface of water is small. When selecting the length, it should be less than one-third of the diameter of the graduated cylinder 1. When placing the floating plate 5, the floating plate 5 can fall on the concave liquid surface to make the result more accurate. During the detection, first add a certain amount of the liquid to be tested into the graduated cylinder 1. At this time, the initial volume is known. When the floating plate 5 falls on the water surface, the initial volume is measured through the first detection mechanism 6;

[0031] Then after a period of time, clear water will precipitate above the liquid to be tested. Then the detection column 4 is placed. The density of the movable sleeve 9 at the end of the detection column 4 is greater than that of water and less than that of the liquid to be tested. The density of water is about 1.0 g / cm³, and the density of the liquid to be tested after mixing the cement-based caulking agent with water 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 as polyvinyl chloride or polyethylene terephthalate, and its density is between 1.3 - 1.45 g / cm³. When the movable sleeve 9 is above the liquid to be tested, stop, and then measure the result at this time, and then calculate the free expansion rate and the free bleeding rate.

[0032] Combined with Att Figure 1 、Att Figure 2 、Att Figure 3 、Att Figure 4 、Att 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 supporting frames 62 arranged correspondingly on both sides, a rotating shaft 63 is rotatably provided between the two supporting 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, and a pointer 67 cooperating with the micrometer 65 is provided at one end of the indicator plate 66.

[0033] Working principle of detection mechanism 6: It is known that the length of measuring cylinder 1 is L0. In the initial state, the bottom surface of floating plate 5 and the end of measuring cylinder 1 are in the same plane, and the 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 2 7, 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 floating plate 5. Floating plate 5 moves under its own gravity, thereby driving the connecting rope 61 to move, thereby driving the guide roller 64 to rotate, and the indicator plate 66 at the end of the connecting rope 61 moves downward. When floating plate 5 is located on the water surface, floating plate 5 no longer moves. At this time, the position of pointer 67 on indicator plate 66 is recorded, and the descending position is read by micrometer 65, which is L2.

[0034] Combined with Figure 2 , Attachment Figure 3 , Attachment Figure 4 , Attachment Figure 5 , Attachment Figure 8 , Attachment Figure 9 As shown, the detection mechanism 27 includes a micrometer 271 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 abutted against 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 274 is slidably provided on the micrometer 271, the other end of the indicator plate 274 is connected to the detection column 4, and one end of the indicator plate 274 is provided with a pointer 275 cooperating with the micrometer 271.

[0035] Working principle of Detection Mechanism II: Press the detection column 4 downwards. The detection column 4 drives the movable sleeve 9 to move downwards, and at the same time drives the second indicating plate 74 to move downwards through the separated supernatant. When the end of the movable sleeve 9 contacts the liquid to be measured, since the density of the movable sleeve 9 is less than that of the liquid to be measured, the movable sleeve 9 stops moving, while the detection column 4 continues to move downwards. At the same time, since the end of the lifting column 73 abuts against the movable sleeve 9, the lifting column 73 moves upwards relative to the movable sleeve 9. When the end of the detection column 4 fits against the bottom surface of the movable sleeve 9, stop pressing the detection column 4, and then record the position pointed by the second pointer 75 on the micrometer 71 at this time as L3. At this time, the free swelling rate is (L0 - L3) - (L0 - L1) / (L0 - L1) * 100%, and the free bleeding rate is obtained by (L0 - L1) - (L0 - L2) to get the height of the separated liquid. Then, according to the conversion between the micrometer and the measuring cylinder 1 into volume, V body is obtained, and then compared with the original liquid to be measured to obtain the free bleeding rate.

[0036] Combined with the attached 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 above the lifting column 73 on the U-shaped plate 51.

[0037] Working principle: In order to accurately obtain the distance between the expanded liquid to be measured 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, at this time, the top end of the lifting column 73 is close to the proximity switch 53, and the proximity switch 53 controls the indicator light 52 to turn on, 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 turn on.

[0038] Combined with the attached Figure 2 、attachment Figure 3 、attachment Figure 9 As shown, a sealing cover 8 is slidably provided below the support platform 31 on the circular ring 3. The sealing cover 8 is provided with a through hole for cooperating with the movable sleeve 9 and the connecting rope 61, and a connecting column 81 passing through the support platform 31 is provided on the sealing cover 8.

[0039] Working principle: When pouring the liquid to be measured into the measuring cylinder 1, in order to prevent external air from possibly affecting the result, a sealing cover 8 is set to block the middle of the circular ring 3, so as to ensure the accuracy of the detection result.

[0040] Combined with the attached Figure 2 、attachment Figure 3 、attachment Figure 6 、attachment Figure 7 、attachmentFigure 9 As shown in the figure, the fixing mechanism 2 includes a groove 21 on a circular ring 3. A connecting rod 22 is rotatably arranged in the groove 21. A rubber block 23 that abuts against the inner wall of the measuring cylinder 1 is arranged at the end of the connecting rod 22. A slide rail 24 is arranged above the groove 21 on the circular ring 3. A slide rod 25 is slidably arranged on the slide rail 24. A push column 26 is arranged on the bottom surface of the slide rod 25. A chute 27 that cooperates with the push column 26 is arranged on the connecting rod 22. A threaded sleeve 28 is arranged on the circular ring 3. A threaded ring 29 is threadedly connected to the threaded sleeve 28. A pressing ring 210 that abuts against the bottom surface of the threaded ring 29 is arranged on the slide rod 25.

[0041] Working principle: In order to ensure the accuracy of the reading, the end of the circular ring 3 needs to fit with the end of the measuring cylinder 1. By setting the fixing mechanism 2, the circular ring 3 is fixed on the measuring cylinder 1. Specifically, the circular 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 pressing ring 210 downward. The pressing 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. 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, so that the rubber block 23 rotates outward and abuts against the inner wall of the measuring cylinder 1. Thus, while fixing, the centers of the circular ring 3 and the measuring cylinder 1 are at the same position.

[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, ensure that the liquid to be measured is poured from the middle position of the measuring cylinder 1 to prevent the liquid to be measured from adhering to the inner wall of the measuring cylinder 1, resulting in inaccurate volume. During the detection, slowly place the floating plate 5 and the detection column 4 to prevent splashing of the liquid onto the inner wall of the measuring cylinder 1 due to too fast placement, resulting in errors in the detection results.

[0043] The above describes the present invention and its implementation manners. This description is not restrictive. What is shown in the drawings is only one of the implementation manners of the present invention, and the actual structure is not limited thereto. All in all, if those of ordinary skill in the art are inspired by it and design similar structural manners and embodiments without creative efforts without departing from the spirit of the present invention, they shall fall within the protection scope of the present invention.

Claims

1. A caulking compound expansion rate detection device, comprising a graduated cylinder (1) with a liquid to be measured contained therein, characterized in that: A ring (3) is provided on the measuring cylinder (1), and a fixing mechanism (2) for fixing the ring (3) on the measuring cylinder (1) is provided on the ring (3). A support platform (31) is provided on the ring (3), and a detection column (4) is movably inserted on the support platform (31). A floating plate (5) sleeved on the detection column (4) is slidably provided on the ring (3). An end of the detection column (4) is movably inserted with a movable sleeve (9). A first detection mechanism (6) for determining the liquid level height is provided on the support platform (31), and a second detection mechanism (7) for detecting the expansion height is provided on the support platform (31).

2. The caulking compound expansion rate detection device according to claim 1, wherein: The first detection mechanism (6) includes two connecting ropes (61) on the floating plate (5). Support frames (62) are arranged correspondingly on both sides on the support platform (31). A rotating shaft (63) is rotatably provided between the two support frames (62). A guide roller (64) corresponding to the connecting rope (61) is provided on the rotating shaft (63). A first micrometer (65) is provided on the support platform (31), and an indicating plate one (66) is slidably provided on the first micrometer (65). The connecting rope (61) is wound around the guide roller (64) for one circle and fixedly connected to the bottom surface of the indicating plate one (66).

3. The caulking compound expansion rate detection device according to claim 1, wherein: The second detection mechanism (7) includes a second micrometer (71) provided on the support platform (31). A jack (72) is provided on the detection column (4), and a jacking column (73) is movably inserted in the jack (72). One end of the jacking column (73) abuts against the movable sleeve (9), and the other end of the jacking column (73) is in the same plane as the end of the detection column (4). An indicating plate two (74) is slidably provided on the second micrometer (71), and the other end of the indicating plate two (74) is connected to the detection column (4).

4. The caulking compound expansion rate detection device according to claim 1, wherein: A U-shaped plate (51) is provided at the end of the detection column (4), and an indicator light (52) is provided on the U-shaped plate (51). A proximity switch (53) for controlling the on / off of the indicator light (52) is provided above the jacking column (73) on the U-shaped plate (51).

5. The caulking compound expansion rate detection device according to claim 2, characterized in that: A sealing cover (8) is slidably provided on the ring (3) below the support platform (31). Through holes for cooperating with the movable sleeve (9) and the connecting rope (61) are provided on the sealing cover (8), and a connecting column (81) penetrating through the support platform (31) is provided on the sealing cover (8).

6. The caulking compound expansion rate detection device according to claim 1, wherein: The density of the floating plate (5) is less than the density of water, and the density of the movable sleeve (9) is greater than the density of water and less than the density of the liquid to be measured. 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 measured.

7. The caulking compound expansion rate detection device according to claim 1, characterized in that: The fixing mechanism (2) includes a groove (21) on a circular ring (3). A connecting rod (22) is rotatably arranged in the groove (21). A rubber block (23) that abuts against the inner wall of the measuring cylinder (1) is arranged at the end of the connecting rod (22). A slide rail (24) is arranged on the circular ring (3) above the groove (21). A slide rod (25) is slidably arranged on the slide rail (24). A push column (26) is arranged on the bottom surface of the slide rod (25). A chute (27) that cooperates with the push column (26) is arranged on the connecting rod (22). A threaded sleeve (28) is arranged on the circular ring (3). A threaded ring (29) is threadedly connected to the threaded sleeve (28). A pressing ring (210) that abuts against the bottom surface of the threaded ring (29) is arranged on the slide rod (25).

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