A cement mortar fluidity testing device

Abstract

This utility model relates to the field of industrial technology, and in particular to a cement mortar fluidity testing device. It includes a base, a support seat, a mounting platform, a servo motor, a cam, a vibration platform, a top rod, a top wheel, guide rods, and a testing mechanism. The support seat is fixedly connected to the base, and the mounting platform is fixedly connected to the support seat. A servo motor is mounted on the support seat, and a cam is mounted on the output shaft of the servo motor. A top rod is slidably mounted within the mounting platform. The vibration platform is fixedly connected to the mounting platform, and a top wheel is rotatably mounted on the top rod. Two guide rods are fixedly connected to the mounting platform. The height is adjusted by rotating the balancing bolts at the four corners of the base, and the base is checked for horizontality using a level. This ensures that the testing platform is absolutely horizontal, thus eliminating the influence of tilt on fluidity measurement.

Description

Technical Field

[0001] This utility model relates to the field of industrial technology, and in particular to a cement mortar fluidity testing device. Background Technology

[0002] Cement mortar is a building cementitious material made by mixing cement, fine aggregate, water and optional additives in a specific ratio. It is widely used in masonry, plastering, floor leveling, grouting and other projects. Its fluidity refers to the ability of freshly mixed mortar to flow and fill the mold under its own weight or external force, which is the core indicator for evaluating the construction performance of mortar.

[0003] Patent CN220912921U discloses a cement mortar fluidity testing device. It includes a support, a slump bucket, a testing platform, a fixed platform, and an electric push rod. The fixed platform is fixedly installed on the outer wall of the slump bucket, and its lifting and lowering are controlled by the electric push rod. An installation block is fixedly installed on the outer wall of the bottom end of the fixed platform, and a striking head for striking the slump bucket is elastically installed on the inner wall of the installation block. When using this patent, the electric push rod can raise and lower the slump bucket, allowing the cement mortar to fall onto the surface of the testing platform. Activating the drive motor, with the cooperation of gears and a gear ring, causes a rotating ring to drive multiple magnets to rotate, continuously attracting and releasing the striking head, achieving intermittent striking. However, the support in the aforementioned patent lacks a balancing mechanism, which can easily lead to the testing platform not being completely level during use, affecting the shape and distribution of the poured cement mortar, and thus affecting the judgment of the mortar fluidity.

[0004] Therefore, there is a need to provide a cement mortar fluidity testing device with balancing function. Utility Model Content

[0005] In order to overcome the shortcomings of the existing patents, which lack a balancing mechanism on the support and are prone to failure to be completely level during use, thus affecting the shape and distribution of the poured cement mortar and consequently affecting the judgment of the mortar's fluidity, this utility model provides a cement mortar fluidity testing device with a balancing function.

[0006] To address the aforementioned issues, this utility model employs the following technical solution: a cement mortar fluidity testing device, comprising a base, a support seat, an installation platform, a servo motor, a cam, a vibration platform, a top rod, a top wheel, a guide rod, and a testing mechanism. The support seat is fixedly connected to the base, and the installation platform is fixedly connected to the support seat. A servo motor is mounted on the support seat, and a cam is mounted on the output shaft of the servo motor. A top rod is slidably mounted between the support seat and the installation platform. A vibration platform is fixedly connected to the installation platform, and a top wheel is rotatably mounted on the top rod. Two guide rods are fixedly connected to the installation platform. The device is characterized by further including balancing bolts and a level. Four balancing bolts are threaded onto the base, and a level is mounted on the base.

[0007] Furthermore, it also includes miniature cylinders, a top plate, and electromagnets. Four miniature cylinders are installed inside the vibration platform, and a top plate is installed between the telescopic rods of the four miniature cylinders. Electromagnets are installed on the top plate.

[0008] Furthermore, the testing mechanism includes a mounting plate, a slide rail, a slider, a laser generator, a start / stop switch, a pointer, and a scale. Two mounting plates are installed on the mounting platform, and a slide rail is installed on the mounting plate. A slider is slidably mounted on the slide rail, and a laser generator is mounted on the slider. A start / stop switch and a pointer are installed on the laser generator. A scale is fixedly connected to the slide rail.

[0009] Furthermore, it also includes protective plates, with two protective plates fixedly connected to the support base.

[0010] Furthermore, it also includes a mounting base, with the mounting base positioned between the servo motor and the base.

[0011] Furthermore, it also includes limit baffles, with two limit baffles provided on the mounting plate.

[0012] Compared with the prior art, the present invention has the following technical effects: 1. By adjusting the height by rotating the balancing bolts at the four corners of the base, and combining the level instrument to detect that the base is in a horizontal state, the test platform can be ensured to be in an absolutely horizontal state, thereby eliminating the influence of tilt on the flow measurement.

[0013] 2. The mold bottom is attracted by an electromagnet when it is energized. After the test is completed, the electromagnet is de-energized, and four micro cylinders simultaneously push the top plate up to lift the mold off the vibration platform, thus achieving automatic demolding and avoiding manual disassembly that may interfere with the results. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0015] Figure 2 This is a three-dimensional structural cross-sectional view of the cam, push rod, and push wheel of this utility model.

[0016] Figure 3 This is a three-dimensional structural cross-sectional view of the slider, laser generator, and start / stop switch of this utility model.

[0017] Figure 4 This is an exploded view of the miniature cylinder, top plate, and electromagnet of this utility model.

[0018] In the attached diagrams: 1: Base, 2: Support seat, 3: Mounting platform, 4: Servo motor, 5: Cam, 6: Top rod, 7: Top wheel, 8: Guide rod, 9: Leveling bolt, 10: Level, 11: Mounting plate, 12: Slide rail, 13: Slider, 14: Laser generator, 15: Start / stop switch, 16: Pointer, 17: Ruler, 18: Vibration platform, 19: Miniature cylinder, 20: Top plate, 21: Electromagnet, 22: Protective plate, 23: Mounting seat, 24: Limiting baffle. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Example 1: A cement mortar fluidity testing device, see [reference] Figures 1-4 As shown, the system includes a base 1, a support 2, a mounting platform 3, a servo motor 4, a cam 5, a vibration platform 18, a push rod 6, a top wheel 7, a guide rod 8, and a detection mechanism. The support 2 is welded to the top of the base 1, and the mounting platform 3 is welded to the top of the support 2. The servo motor 4 is mounted on the lower front side of the support 2, and the cam 5 is mounted on the output shaft of the servo motor 4. The push rod 6 is slidably mounted within the support 2 and the mounting platform 3. The vibration platform 18 is fixedly connected to the mounting platform 3, and the push rod 6 contacts the vibration platform 18. The bottom of the push rod 6 is rotatably mounted with a top wheel 7, which contacts the cam 5. Two guide rods 8 are fixedly connected to the bottom of the mounting platform 3, and the guide rods 8 are located inside the support 2. The push rod 6 slides on the two guide rods 8. The system also includes balancing bolts 9 and a level 10. Four balancing bolts 9 are threaded onto the base 1, and the level 10 is mounted on the top of the base 1.

[0021] See Figure 1 As shown, it also includes a protective plate 22, and the protective plate 22 is fixedly connected to both the left and right sides of the support base 2.

[0022] See Figure 1 and Figure 2 As shown, it also includes a mounting base 23, which is provided between the servo motor 4 and the base 1.

[0023] When using this device, first place it in the designated position and adjust the height by rotating the leveling bolts 9 at the four corners of the base 1. Combine this with the level 10 to check that the base 1 is horizontal, thus ensuring that the test platform is in an absolutely horizontal state, thereby eliminating the influence of tilt on the flow measurement. After adjusting to the horizontal position, place the mold containing cement mortar on the vibration platform 18, and then start the servo motor 4. The output shaft of the servo motor 4 drives the cam 5 to rotate, and the cam 5 pushes the top wheel 7 to move up and down. The top wheel 7 transmits the reciprocating motion to the vibration platform 18 through the top rod 6, so that the platform generates periodic vibration to simulate the compaction conditions in construction. The top rod 6 slides along the two guide rods 8 to ensure the vertical movement accuracy and avoid tilting. At the same time, the mortar flows out from the mold, and the detection mechanism detects the mortar. The protective plate 22 increases the stability of the support base 2.

[0024] Example 2: Based on Example 1, refer to Figures 2-4 As shown, it also includes miniature cylinders 19, a top plate 20, and an electromagnet 21. Four miniature cylinders 19 are evenly spaced and connected by bolts inside the vibration platform 18. The top plate 20 is installed between the telescopic rods of the four miniature cylinders 19, and the electromagnet 21 is installed on the top of the top plate 20.

[0025] Before testing, the electromagnet 21 is energized to attract the bottom of the metal mold. After the test is completed, the electromagnet 21 is de-energized, and at the same time, four micro cylinders 19 push the top plate 20 to rise, pushing the mold away from the vibration platform 18, thus achieving automatic detachment and avoiding manual disassembly that could interfere with the results.

[0026] See Figure 2 and Figure 3 As shown, the testing mechanism includes a mounting plate 11, a slide rail 12, a slider 13, a laser generator 14, a start / stop switch 15, a pointer 16, and a scale 17. Two mounting plates 11 are mounted on the mounting platform 3. The slide rail 12 is bolted to the mounting plate 11. The two slide rails 12 are set at a 90-degree angle. The slider 13 is slidably mounted on the slide rail 12. The laser generator 14 is bolted to the slider 13. The start / stop switch 15 is set on the top of the laser generator 14. The pointer 16 is set on the outside of the laser generator 14. The scale 17 is fixedly connected to the outside of the slide rail 12. The pointer 16 points to the scale 17.

[0027] See Figure 1 and Figure 3 As shown, it also includes a limit baffle 24. Two limit baffles 24 are provided on the mounting plate 11 to limit the position of the slider 13.

[0028] During testing, the slider 13 on the two mutually perpendicular slide rails 12 can move freely. The laser generator 14 is precisely positioned by reading the position of the scale 17 through the pointer 16. During the test, the laser generator 14 irradiates the edge of the mortar diffusion with laser light, and the flow diameter is quantified by reading the scale 17. Finally, the flow data is calculated. After the test is completed, the switch is pressed to control the shutdown.

[0029] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.

Claims

1. A cement mortar fluidity testing device, comprising a base (1), a support seat (2), an installation platform (3), a servo motor (4), a cam (5), a vibration platform (18), a top rod (6), a top wheel (7), a guide rod (8), and a testing mechanism, wherein the support seat (2) is fixedly connected to the base (1), the installation platform (3) is fixedly connected to the support seat (2), the servo motor (4) is installed on the support seat (2), the cam (5) is installed on the output shaft of the servo motor (4), the top rod (6) is slidably arranged between the support seat (2) and the installation platform (3), the vibration platform (18) is fixedly connected to the installation platform (3), the top wheel (7) is rotatably arranged on the top rod (6), and two guide rods (8) are fixedly connected to the installation platform (3), characterized in that: It also includes balancing bolts (9) and a level (10). Four balancing bolts (9) are threaded on the base (1), and a level (10) is installed on the base (1).

2. The cement mortar fluidity testing device according to claim 1, characterized in that: It also includes a miniature cylinder (19), a top plate (20) and an electromagnet (21). Four miniature cylinders (19) are installed inside the vibration platform (18). A top plate (20) is installed between the telescopic rods of the four miniature cylinders (19). An electromagnet (21) is installed on the top plate (20).

3. A cement mortar fluidity testing device according to claim 2, characterized in that: The testing mechanism includes a mounting plate (11), a slide rail (12), a slider (13), a laser generator (14), a start / stop switch (15), a pointer (16), and a scale (17). Two mounting plates (11) are mounted on the mounting platform (3). A slide rail (12) is mounted on the mounting plate (11). A slider (13) is slidably mounted on the slide rail (12). A laser generator (14) is mounted on the slider (13). A start / stop switch (15) is mounted on the laser generator (14). A pointer (16) is mounted on the laser generator (14). A scale (17) is fixedly connected to the slide rail (12).

4. A cement mortar fluidity testing device according to claim 3, characterized in that: It also includes a protective plate (22), and two protective plates (22) are fixedly connected to the support base (2).

5. A cement mortar fluidity testing device according to claim 4, characterized in that: It also includes a mounting base (23), and the mounting base (23) is provided between the servo motor (4) and the base (1).

6. A cement mortar fluidity testing device according to claim 5, characterized in that: It also includes limit baffles (24), and two limit baffles (24) are provided on the mounting plate (11).

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