Cement mortar fluidity tester

Abstract

The utility model relates to cement mortar flow degree test technical field especially relates to a cement mortar flow degree tester. The cement mortar flow degree tester includes: bottom plate, elastic component, support component, truncated cone round mould, contains long piece, the top fixedly connected with base of bottom plate, the top fixedly connected with a plurality of support frames of base, the similar side bottom of a plurality of support frames is rotatably connected with cam, the bottom inner wall rotatably connected with rotating rod of one support frame, the side away from cam of support frame installed with rotating rod is equipped with first motor, the similar side top of a plurality of support frames is fixedly connected with sleeve, the inner wall slidingly connected with slide rod of sleeve, the bottom fixedly connected with ball of slide rod. The utility model provides to avoid the round mould inclination due to the uneven hand strength, guarantees the initial cement mortar filling symmetry, lets cement mortar flow degree determination initial condition be more standard, reduces artificial operation difficulty and error probability.

Description

Technical Field

[0001] This utility model relates to the field of cement mortar flowability testing technology, and in particular to a cement mortar flowability measuring instrument. Background Technology

[0002] Cement mortar is a slurry made by mixing cement, standard sand, and water in a specific ratio. It is a sample that simulates the state of cement in actual engineering. The fluidity tester plays a crucial role because fluidity directly reflects the flowability of cement mortar. This indicator can reflect the plasticizing performance and construction adaptability of cement. If the fluidity is too low, it will be difficult to vibrate and compact during construction. If it is too high, it may affect the strength after hardening. Therefore, measuring the fluidity with this instrument is a key means to ensure the stable quality of cement in building construction.

[0003] Most cement mortar flowability tests first place a truncated cone mold in the center of a worktable, then mix the materials according to the standard ratio to form a uniform mortar. The mortar is then poured into the truncated cone mold in two layers, each layer is tamped down evenly multiple times with a tamping rod, and excess mortar is scraped off the mold opening. During this process, the truncated cone mold needs to be manually supported to prevent it from shifting. However, uneven hand pressure can cause the mold to tilt slightly, resulting in asymmetrical initial mortar filling. Consequently, the actual flowability of the mortar cannot be accurately reflected, which can mislead the judgment of the cement's workability.

[0004] Therefore, it is necessary to provide a new cement mortar flowability tester to solve the above-mentioned technical problems. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a cement mortar flowability tester. This utility model provides a cement mortar flowability tester comprising: a base plate, an elastic component, a support component, a truncated conical mold, and a receiving long block. A base is fixedly connected to the top of the base plate, and multiple support frames are fixedly connected to the top of the base. A cam is rotatably connected to the bottom end of one of the support frames on a similar side. A rotating rod is rotatably connected to the inner wall of the bottom end of one of the support frames. A first motor is installed on the side of the support frame with the rotating rod away from the cam. A sleeve is fixedly connected to the top of one of the multiple support frames on a similar side. A sliding rod is slidably connected to the inner wall of the sleeve. A ball is fixedly connected to the bottom end of the sliding rod, and a jumping table is fixedly connected to the top of the sliding rod. An elastic component is installed on the inner wall of the sleeve. A ball is installed at the bottom end of the jumping table away from the axis. Equipped with a support assembly, the top of the jumping table has a truncated cone mold. A support block is fixedly connected to the top of the base plate on the side away from the base. A sliding plate is slidably connected to the inner wall of one side of the support block. A one-way threaded rod is rotatably connected to the inner wall of the support block. A second motor is fixedly connected to the top of the support block. A receiving block is fixedly connected to the side of the sliding plate away from the inner wall of the support block. A two-way threaded rod is rotatably connected to the end of the inner wall of the receiving block. Two threaded blocks are threaded to the outside of the two-way threaded rod. A connecting rod is fixedly connected to the right side of the threaded blocks. A fixing rod is fixedly connected to the adjacent side of the two connecting rods. An arc-shaped clamping block is fixedly connected to the adjacent side of the two fixing rods. A third motor is fixedly connected to one end of the receiving block.

[0006] Preferably, the elastic component includes a spring, which is disposed on the inner wall of the sleeve and sleeved on the outside of the slide rod. A rubber pad is fixedly connected to the bottom end of the inner wall of the sleeve, and a limit plate is fixedly connected to the bottom end of the outer side of the slide rod.

[0007] Preferably, the support assembly includes multiple support rods, the top ends of the multiple support rods are fixedly connected to the bottom end of the jumping table away from the axis, the bottom end of the support rods is fixedly connected to a baffle, and the top inner wall of the multiple support frames is fixedly connected to a retaining ring.

[0008] Preferably, the drive end of the first motor is fixedly connected to one end of the rotating rod, the other end of the rotating rod is fixedly connected to the inner wall of the cam, and the bottom end of the ball is in contact with the outside of the cam.

[0009] Preferably, the drive end of the second motor is fixedly connected to the top of the one-way threaded rod, and the outer side of the one-way threaded rod is threadedly connected to the inner wall of one side of the sliding plate.

[0010] Preferably, the outer sides of the two threaded blocks are slidably connected to the inner wall of the receiving long block, the outer side of the two connecting rods near the two threaded blocks is slidably connected to the inner wall of the receiving long block away from the sliding plate, the driving end of the third motor is fixedly connected to one end of the bidirectional threaded rod, and the adjacent sides of the two arc-shaped clamping blocks are in contact with the outer middle of the truncated cone mold.

[0011] Preferably, the bottom end of the limiting plate is in contact with the top end of the rubber pad, the outer side of the limiting plate is slidably connected to the inner wall of the sleeve, the top end of the spring is fixedly connected to the top end of the inner wall of the sleeve, and the bottom end of the spring is fixedly connected to the top end of the limiting plate.

[0012] Preferably, the outer surfaces of the plurality of support rods are slidably connected to the inner wall of the fixing ring.

[0013] Compared with related technologies, the cement mortar flowability tester provided by this utility model has the following beneficial effects: More precise and stable mold fixing: Through the cooperation of a second motor, a one-way threaded rod, a sliding plate, and a long receiving block, the position of the long receiving block can be adjusted to make the arc-shaped clamping block fit the truncated cone mold. Then, the third motor, a two-way threaded rod, and a threaded block drive the arc-shaped clamping block to clamp and fix the truncated cone mold, replacing manual support and avoiding the mold tilting due to uneven hand force. This ensures symmetrical initial mortar filling and makes the initial conditions for mortar flowability measurement more standard.

[0014] The operation process is more convenient and efficient: Before filling with mortar, the mechanical structure driven by the motor can quickly and accurately position and firmly fix the truncated cone mold. After filling and compacting, the motor can be started in reverse to easily release the fixation and remove the relevant structure, making it easy to remove the mold. Compared with manual operation, the process is simpler and more efficient, reducing the difficulty and error probability of manual operation.

[0015] The jumping table's movement is more stable and controllable: By utilizing the cooperation of the first motor, rotating rod, cam, ball, slide rod, elastic component, and support component, the power transmission of the jumping table is stable. The spring provides rebound force to ensure the jumping rhythm, while the support rod, fixed ring, and baffle plate ensure the stability of the jumping table during jumping. This makes the number and amplitude of jumping table movements more in line with standard requirements, reduces external interference to mortar flow, and allows the measurement results to more accurately reflect the actual flowability of mortar, providing reliable data for accurately judging the adaptability of cement construction. Attached Figure Description

[0016] Figure 1 This utility model provides a structural schematic diagram of a cement mortar flowability tester. Figure 2 for Figure 1 Enlarged view of point A in the image; Figure 3 for Figure 1 The diagram shows the structure that accommodates the long block. Figure 4 for Figure 3 Enlarged view of point B in the image; Figure 5 for Figure 1 The diagram shows the structure of the supporting block. Figure 6 for Figure 5Enlarged view of point C in the image.

[0017] The following are the components labeled in the diagram: 1. Base plate; 2. Base; 3. Support frame; 4. Rotating rod; 5. Cam; 6. First motor; 7. Sleeve; 8. Slide rod; 9. Ball; 10. Spring; 11. Rubber pad; 12. Limiting plate; 13. Jumping table; 14. Support rod; 15. Baffle plate; 16. Fixing ring; 17. Frustum-shaped mold; 18. Support block; 19. Sliding plate; 20. One-way threaded rod; 21. Second motor; 22. Receiving block; 23. Two-way threaded rod; 24. Threaded block; 25. Connecting rod; 26. Fixing rod; 27. Arc-shaped clamping block; 28. Third motor. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0019] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0020] Please see Figures 1 to 6 A cement mortar flowability tester includes: a base plate 1, a base 2 fixedly connected to the top of the base plate 1, three support frames 3 evenly distributed and fixedly connected along the circumferential direction at the top of the base 2, a cam 5 rotatably connected to the bottom end of the multiple support frames 3 on the adjacent side, a rotating rod 4 rotatably connected to the inner wall of the bottom end of one of the support frames 3, a first motor 6 installed on the side of the support frame 3 with the rotating rod 4 away from the cam 5, the drive end of the first motor 6 is fixedly connected to one end of the rotating rod 4 through a coupling, and the other end of the rotating rod 4 is fixedly connected to the inner wall of the cam 5.

[0021] Sleeve 7 is fixedly connected to the top of one of the adjacent sides of multiple support frames 3. Slide rod 8 is slidably connected to the inner wall of sleeve 7. Ball 9 is fixedly connected to the bottom of slide rod 8. The bottom of ball 9 is in contact with the outer contour surface of cam 5. Jump table 13 is fixedly connected to the top of slide rod 8.

[0022] The elastic component includes a spring 10 installed on the inner wall of the sleeve 7. The spring 10 is disposed on the inner wall of the sleeve 7 and sleeved on the outside of the slide rod 8. A rubber pad 11 is fixedly connected to the bottom end of the inner wall of the sleeve 7. A limiting plate 12 is fixedly connected to the bottom end of the outside of the slide rod 8. The bottom end of the limiting plate 12 is in contact with the top end of the rubber pad 11. The outside of the limiting plate 12 is slidably connected to the inner wall of the sleeve 7. The top end of the spring 10 is fixedly connected to the top end of the inner wall of the sleeve 7, and the bottom end of the spring 10 is fixedly connected to the top end of the limiting plate 12.

[0023] The support assembly is evenly installed along the circumference at the bottom of the jumping table 13 away from the axis. The support assembly includes three support rods 14 distributed at 120-degree angles. The tops of the multiple support rods 14 are fixedly connected to the bottom of the jumping table 13 away from the axis. The bottom of the support rods 14 is fixedly connected to a baffle 15. The inner wall of the top of the multiple support frames 3 is fixedly connected to a fixing ring 16. The outer side of the multiple support rods 14 is slidably connected to the inner wall of the fixing ring 16.

[0024] A truncated cone mold 17 is placed at the center of the top of the jumping table 13. A support block 18 is fixedly connected to the top of the base plate 1 on the side away from the base 2. A dovetail groove is opened on one side of the inner wall of the support block 18 and a sliding plate 19 is slidably connected thereto. A one-way threaded rod 20 is rotatably connected to the inner wall of the support block 18. The outer side of the one-way threaded rod 20 is threadedly connected to the inner wall of one side of the sliding plate 19. A second motor 21 is fixedly connected to the top of the support block 18. The drive end of the second motor 21 is fixedly connected to the top of the one-way threaded rod 20 through a coupling.

[0025] The long block 22 is fixedly connected to the side of the sliding plate 19 away from the inner wall of the supporting long block 18. The inner wall end of the long block 22 is rotatably connected to a bidirectional threaded rod 23. The left and right sides of the outer side of the bidirectional threaded rod 23 are respectively provided with threads of opposite directions and threadedly connected to two threaded blocks 24. The outer side of the two threaded blocks 24 is slidably connected to the inner wall of the long block 22. The right side of the threaded blocks 24 is fixedly connected to a connecting rod 25. The outer side of the two connecting rods 25 near the two threaded blocks 24 is slidably connected to the inner wall of the long block 22 away from the sliding plate 19. The adjacent side of the two connecting rods 25 is fixedly connected to a fixing rod 26. The adjacent side of the two fixing rods 26 is fixedly connected to an arc-shaped clamping block 27. The adjacent side of the two arc-shaped clamping blocks 27 is in contact with the outer middle of the truncated cone mold 17. One end of the long block 22 is fixedly connected to a third motor 28. The drive end of the third motor 28 is fixedly connected to one end of the bidirectional threaded rod 23 through a coupling.

[0026] The working principle of the cement mortar flowability tester provided by this utility model is as follows: First, place the truncated cone mold 17 at the center of the jumping table 13 to prepare for subsequent filling with mortar. Simultaneously, mix cement, standard sand, and water according to the standard ratio to form a uniform cement mortar. Start the second motor 21, which drives the one-way threaded rod 20 to rotate. The rotation of the one-way threaded rod 20 causes the sliding plate 19 to slide along the inner wall of one side of the supporting long block 18. The sliding plate 19 moves the receiving long block 22, aligning it with the position of the truncated cone mold 17. Then, start the third motor 28, which drives the two-way threaded rod 23 to rotate. The rotation of the two-way threaded rod 23 causes two threaded blocks 24 to slide along the inner wall of the receiving long block 22. The connecting rod 25 drives the fixed rod 26 to move. The fixed rod 26 moves so that the arc-shaped clamping block 27 approaches the truncated cone mold 17 until the adjacent side of the two arc-shaped clamping blocks 27 is in close contact with the outer middle of the truncated cone mold 17, thus completing the fixation of the truncated cone mold 17. Then, the mixed mortar is loaded into the truncated cone mold 17 in two layers. Each layer is tamped evenly and repeatedly with a tamping rod. After tamping, the third motor 28 is started in reverse to move the arc-shaped clamping block 27 away from the truncated cone mold 17. At this time, the second motor 21 is started in reverse to move the long block 22 and the two arc-shaped clamping blocks 27 away from the position of the truncated cone mold 17 and move upward. At this time, the truncated cone mold 17 is unrestricted and can be removed from the jumping table 13. After completing the above operations, to prepare the power for the jumping table 13, the first motor 6 is started. The first motor 6 drives the rotating rod 4 to rotate. The rotation of the rotating rod 4 causes the cam 5 to rotate on the inner wall of the bottom end of one of the support frames 3. During the rotation of the cam 5, its outer side contacts the bottom end of the ball 9, which pushes the ball 9 to move upward. The movement of the ball 9 causes the slide rod 8 to slide on the inner wall of the sleeve 7. The sliding of the slide rod 8 causes the jumping table 13 to move upward, while simultaneously compressing the spring 10 in the elastic component. When the cam 5 rotates to a specific position and no longer applies an upward force to the ball 9, under the elastic force of the spring 10, the slide rod 8... The jumping table 13 is driven to fall downwards, and this process is repeated to achieve the jumping action of the jumping table 13. During the jumping process of the jumping table 13, multiple support rods 14 in the support assembly will slide on the inner wall of the fixed ring 16, and the baffle 15 plays a limiting role to ensure the stable jumping of the jumping table 13. As the jumping table 13 continues to jump, the cement mortar in the truncated cone mold 17 will flow outwards under the jumping action. After the number of jumps reaches the standard requirement, the relevant motor is stopped. At this time, the flowability of the cement mortar can be determined by measuring data such as the diameter of the flowed cement mortar, thus completing the entire cement mortar flowability measurement process.

[0027] The above are merely embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A cement mortar flowability tester, characterized in that, include: A base plate (1) is fixedly connected to a base (2) at the top of the base plate (1). Multiple support frames (3) are fixedly connected to the top of the base (2). A cam (5) is rotatably connected to the bottom end of one of the support frames (3) on the same side. A rotating rod (4) is rotatably connected to the inner wall of the bottom end of one of the support frames (3). A first motor (6) is installed on the side of the support frame (3) with the rotating rod (4) away from the cam (5). Sleeve (7), sleeve (7) is fixedly connected to the top of the adjacent side of the plurality of support frames (3), slide rod (8) is slidably connected to the inner wall of sleeve (7), ball (9) is fixedly connected to the bottom end of slide rod (8), and jump table (13) is fixedly connected to the top end of slide rod (8). Elastic component, the inner wall of the sleeve (7) is equipped with an elastic component; Support components are installed at the bottom of the folding table (13) away from the axis; A truncated cone mold (17) is placed on the top of the jumping table (13). A support block (18) is fixedly connected to the top of the base plate (1) on the side away from the base (2). A sliding plate (19) is slidably connected to the inner wall of one side of the support block (18). A one-way threaded rod (20) is rotatably connected to the inner wall of the support block (18). A second motor (21) is fixedly connected to the top of the support block (18). The long block (22) is accommodated. The sliding plate (19) is fixedly connected to the long block (22) on the side away from the inner wall of the supporting long block (18). The inner wall end of the long block (22) is rotatably connected to a two-way threaded rod (23). The external thread of the two-way threaded rod (23) is connected to two threaded blocks (24). The right side of the threaded block (24) is fixedly connected to a connecting rod (25). The two connecting rods (25) are fixedly connected to a fixing rod (26) on the adjacent side. The two fixing rods (26) are fixedly connected to an arc-shaped clamping block (27) on the adjacent side. One end of the long block (22) is fixedly connected to a third motor (28).

2. The cement mortar flowability tester according to claim 1, characterized in that, The elastic component includes a spring (10), which is disposed on the inner wall of the sleeve (7). The spring (10) is sleeved on the outside of the slide rod (8). A rubber pad (11) is fixedly connected to the bottom of the inner wall of the sleeve (7), and a limit plate (12) is fixedly connected to the bottom of the outer side of the slide rod (8).

3. The cement mortar flowability tester according to claim 1, characterized in that, The support assembly includes multiple support rods (14), the top of the multiple support rods (14) is fixedly connected to the bottom of the jumping table (13) away from the axis, the bottom of the support rods (14) is fixedly connected to a baffle (15), and the top inner wall of the multiple support frames (3) is fixedly connected to a fixing ring (16).

4. The cement mortar flowability tester according to claim 1, characterized in that, The drive end of the first motor (6) is fixedly connected to one end of the rotating rod (4), the other end of the rotating rod (4) is fixedly connected to the inner wall of the cam (5), and the bottom end of the ball (9) is in contact with the outside of the cam (5).

5. A cement mortar flowability tester according to claim 1, characterized in that, The drive end of the second motor (21) is fixedly connected to the top of the one-way threaded rod (20), and the outside of the one-way threaded rod (20) is threadedly connected to the inner wall of one side of the sliding plate (19).

6. The cement mortar flowability tester according to claim 1, characterized in that, The outer sides of the two threaded blocks (24) are slidably connected to the inner wall of the receiving long block (22). The outer side of the two connecting rods (25) near the two threaded blocks (24) is slidably connected to the inner wall of the receiving long block (22) away from the sliding plate (19). The driving end of the third motor (28) is fixedly connected to one end of the bidirectional threaded rod (23). The adjacent sides of the two arc-shaped clamping blocks (27) are in contact with the outer middle of the truncated cone mold (17).

7. A cement mortar flowability tester according to claim 2, characterized in that, The bottom end of the limiting plate (12) is in contact with the top end of the rubber pad (11). The outer side of the limiting plate (12) is slidably connected to the inner wall of the sleeve (7). The top end of the spring (10) is fixedly connected to the top end of the inner wall of the sleeve (7). The bottom end of the spring (10) is fixedly connected to the top end of the limiting plate (12).

8. A cement mortar flowability tester according to claim 3, characterized in that, The outer surfaces of the plurality of support rods (14) are slidably connected to the inner wall of the fixing ring (16).

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