Lightweight concrete fluidity testing device

Abstract

The utility model discloses a lightweight concrete flowability testing device, and relates to the technical field of concrete flow testing equipment. The device comprises a base, one side of the top of the base is fixedly connected with a measuring mechanism, the other side of the top of the base is fixedly connected with a testing assembly, the measuring mechanism comprises a mounting frame, the bottom of the mounting frame is fixedly connected with the base, the top of the mounting frame is provided with a sliding rod, and the surface of the sliding rod is slidably connected with a sliding sleeve. According to the utility model, the height of the measuring scale can be flexibly adjusted by adopting a clamping mode, and the accurate fine adjustment of the height of the measuring scale can be realized when the fluidity test is carried out on the lightweight concrete, so that the measuring position can be accurately positioned no matter how the expansion height of the lightweight concrete changes due to factors such as material characteristics and proportion, and the measurement accuracy is improved. Measurement errors caused by insufficient adjustment precision are effectively avoided, and the accuracy of expansion degree measurement is remarkably improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of concrete testing equipment, and in particular relates to a lightweight concrete fluidity testing device. Background Technology

[0002] Lightweight concrete has been widely used in modern construction engineering due to its outstanding advantages such as light weight, heat insulation, and sound insulation. Flowability, as one of the key performance indicators of lightweight concrete, plays a decisive role in its operability during construction and the quality of the final product. Accurate measurement of the flowability of lightweight concrete is of great significance for effectively controlling concrete quality, scientifically optimizing mix design, and ensuring the smooth progress of construction projects.

[0003] Currently, existing testing devices use a screw-on method to adjust the measuring scale. This inconvenience in adjusting the height of the measuring scale makes it difficult for testers to quickly and accurately obtain the spread data of lightweight concrete, affecting testing efficiency and accuracy. In terms of lifting the test cylinder, most existing devices rely on manual lifting, which is not only labor-intensive, but also makes it difficult to guarantee the lifting speed and stability. When lifting manually, different operators have different operating habits and force, resulting in differences in the speed and height of each lift, making the test results unable to truly reflect its actual performance.

[0004] To address these issues, we provide a lightweight concrete fluidity testing device. Utility Model Content

[0005] The purpose of this invention is to provide a lightweight concrete fluidity testing device. By combining the measuring mechanism and the testing components, it solves the problems in the prior art where it is inconvenient to adjust the height of the measuring ruler and the inability to guarantee stability when manually lifting the testing cylinder.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution.

[0007] This utility model relates to a lightweight concrete fluidity testing device, comprising a base, a measuring mechanism fixedly connected to one side of the top of the base, and a testing component fixedly connected to the other side of the top of the base. The measuring mechanism includes a mounting frame, the bottom of which is fixedly connected to the base. A sliding rod is provided on the top of the mounting frame, and a sliding sleeve is slidably connected to the surface of the sliding rod. A measuring scale is fixedly connected to one side of the sliding sleeve by bolts. A movable plate is provided in the inner cavity of the sliding sleeve. A pull rod is fixedly connected to the top of one side of the movable plate, and one side of the pull rod extends to the outside of the sliding sleeve. A spring is fixedly connected to the bottom of one side of the movable plate, and one side of the spring is fixedly connected to the inner wall of the sliding sleeve. A connecting column is fixedly connected to the bottom of the other side of the movable plate, and one side of the connecting column extends through the inner cavity of the sliding sleeve and to the outside of the sliding sleeve. A limiting seat is fixedly connected to one side of the connecting column. The test assembly includes a test cylinder, with a connecting rod bolted to the top of one side of the test cylinder. A threaded rod is threaded to one side of the top of the connecting rod. A fixed frame is fixedly connected to one side of the top of the base, and a motor is fixedly connected to the bottom of the fixed frame. The output end of the motor is fixedly connected to the threaded rod, and the bottom of the threaded rod is movably connected to the base via a bearing. The bottom of the slide rod is fixedly connected to the mounting bracket by bolts, enabling easy disassembly. The sliding sleeve slides on the surface of the slide rod and is limited by a limit seat, allowing for rapid sliding and limiting when measurement is required. Simultaneously, the sliding sleeve can rotate on the surface of the slide rod, avoiding interference with the testing process of the test cylinder. The spring-reset snap-fit ​​design enables rapid sliding of the sliding sleeve on the surface of the slide rod, while the limit seat further enhances the convenience of using the measuring scale.

[0008] The present invention is further configured such that a limiting groove is provided in the inner cavity of the base, and a base support is slidably connected to the inner cavity of the limiting groove. The top of the base support contacts the test cylinder. The base support is installed inside the base through the limiting groove, which allows the base support to be removed after the measurement is completed, facilitating the quick cleaning of concrete material on the base support and further improving the functionality of the device.

[0009] The present invention is further configured such that support frames are fixedly connected to both sides of the top rear end of the base, and an mounting plate is fixedly connected to the opposite side of the support frame. A cylinder is fixedly connected to the top of the mounting plate, and the bottom of the cylinder extends through to the bottom of the mounting plate and is fixedly connected to a vibrator. The vibrator is driven to descend by the cylinder. The automatic vibration method can avoid the errors caused by manual operation and improve the accuracy of data in the concrete testing process.

[0010] The present invention is further configured such that a sliding groove is provided on one side of the fixing frame, and a slider that cooperates with the sliding groove is fixedly connected to one side of the connecting rod. The cooperation between the sliding groove and the slider can limit the connecting rod and ensure the stability of the connecting rod during movement.

[0011] The present invention is further configured such that an adjusting rod is fixedly connected to each of the four corners of the bottom of the base, a threaded post is threadedly connected to the bottom of the adjusting rod, and a bottom pad is fixedly connected to the bottom of the threaded post. Rotating the threaded post can drive the bottom pad to adjust, thereby adjusting the level of the device.

[0012] The present invention is further provided that the front end and the rear end of the top of the base are provided with mounting grooves, and a level is fixedly connected to the inner cavity of the mounting groove. The mounting groove and the level can be used to observe whether the device is in a horizontal position, which significantly improves the reliability of the measurement results.

[0013] The present invention is further provided with an anti-slip pad on one side of the limiting seat. The anti-slip pad is made of rubber. One side of the protective pad is in contact with the slide rod, which can increase the friction of the limiting seat and improve the limiting effect of the slide sleeve.

[0014] The present invention is further provided that a baffle is fixedly connected to the surface of the base, and a buckle groove is provided on the top of the baffle. The baffle and the buckle groove facilitate the disassembly of the base, thereby improving the convenience of the base installation and cleaning.

[0015] The present invention has the following beneficial effects.

[0016] 1. This utility model adopts a snap-fit ​​method to flexibly adjust the height of the measuring ruler. When conducting flowability tests on lightweight concrete, it can achieve precise fine-tuning of the measuring ruler height. This ensures that no matter how the expansion height of lightweight concrete changes due to material properties, mix proportions, or other factors, the measurement position can be accurately located. This effectively avoids measurement errors caused by insufficient adjustment precision and significantly improves the accuracy of expansion measurement.

[0017] 2. By adding an automatically lifting test component, this utility model addresses the speed and stability issues caused by the traditional manual lifting of the test cylinder. This device can accurately lift the test cylinder at a preset speed and height, ensuring that the initial conditions of the lightweight concrete falling are consistent for each test. This effectively reduces fluctuations in test results caused by differences in lifting operations and greatly improves the reliability and repeatability of test results. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0019] Figure 1 This is a three-dimensional view of a lightweight concrete fluidity testing device.

[0020] Figure 2 This is a three-dimensional view of the measuring mechanism in a lightweight concrete fluidity testing device.

[0021] Figure 3 This is a three-dimensional view of the base in a lightweight concrete fluidity testing device.

[0022] Figure 4 This is a perspective view of the movable plate and its connecting structure in a lightweight concrete fluidity testing device.

[0023] Figure 5 This is a bottom-view perspective view of a lightweight concrete flowability testing device.

[0024] In the attached diagram: 1. Base; 2. Measuring mechanism; 201. Mounting bracket; 202. Sliding rod; 203. Sliding sleeve; 204. Measuring ruler; 205. Movable plate; 206. Pull rod; 207. Spring; 208. Connecting column; 209. Limiting seat; 3. Test assembly; 301. Test cylinder; 302. Connecting rod; 303. Threaded rod; 304. Fixing bracket; 305. Motor; 4. Limiting groove; 5. Base support; 6. Support frame; 7. Mounting plate; 8. Cylinder; 9. Vibrator; 10. Slide groove; 11. Adjusting rod; 12. Threaded column; 13. Base pad; 14. Mounting groove; 15. Level; 16. Baffle. Detailed Implementation

[0025] The technical solutions of the present utility model will be described below with reference to the accompanying drawings. The described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] Example 1

[0027] Please see Figure 1-5This utility model relates to a lightweight concrete fluidity testing device, comprising a base 1, a measuring mechanism 2 fixedly connected to one side of the top of the base 1, and a testing assembly 3 fixedly connected to the other side of the top of the base 1. The measuring mechanism 2 includes a mounting frame 201, the bottom of which is fixedly connected to the base 1. A sliding rod 202 is provided on the top of the mounting frame 201, and a sliding sleeve 203 is slidably connected to the surface of the sliding rod 202. A measuring ruler 204 is fixedly connected to one side of the sliding sleeve 203 by bolts. A movable plate 205 is provided in the inner cavity of the sliding sleeve 203. A pull rod 206 is fixedly connected to the top of one side of the movable plate 205, and one side of the pull rod 206 extends through to the outside of the sliding sleeve 203. A spring 207 is fixedly connected to the bottom of one side of the movable plate 205, and one side of the spring 207 is connected to the sliding sleeve. The inner wall of the slide sleeve 203 is fixedly connected, and the bottom of the other side of the movable plate 205 is fixedly connected to the connecting column 208. One side of the connecting column 208 penetrates the inner cavity of the slide sleeve 203 and extends to the outside of the slide sleeve 203. One side of the connecting column 208 is fixedly connected to the limiting seat 209. One side of the limiting seat 209 contacts the slide rod 202. The test assembly 3 includes a test cylinder 301. The top of one side of the test cylinder 301 is fixedly connected to the connecting rod 302 by bolts. One side of the top of the connecting rod 302 is threadedly connected to the threaded rod 303. One side of the top of the base 1 is fixedly connected to the fixing frame 304. The bottom of the fixing frame 304 is fixedly connected to the motor 305. The output end of the motor 305 is fixedly connected to the threaded rod 303. The bottom of the threaded rod 303 is movably connected to the base 1 through a bearing.

[0028] Specifically: The bottom of the slide rod 202 is fixedly connected to the mounting bracket 201 by bolts, which enables easy disassembly. The slide sleeve 203 slides on the surface of the slide rod 202 and is limited by the limit seat 209, so that it can slide and limit quickly when measurement is required. At the same time, the slide sleeve 203 can rotate on the surface of the slide rod 202 to avoid interfering with the testing process of the test cylinder 301. The design of spring 207 reset and snap-fit ​​enables the slide sleeve 203 to slide quickly on the surface of the slide rod 202. At the same time, the limit seat 209 limits it, which improves the convenience of using the measuring ruler 204.

[0029] Example 2

[0030] Please see Figure 1-5Based on Embodiment 1, a limiting groove 4 is formed in the inner cavity of the base 1. A base support 5 is slidably connected to the inner cavity of the limiting groove 4. The top of the base support 5 contacts the test cylinder 301. Support frames 6 are fixedly connected to both sides of the top rear end of the base 1. A mounting plate 7 is fixedly connected to the opposite side of the support frame 6. A cylinder 8 is fixedly connected to the top of the mounting plate 7. The bottom of the cylinder 8 extends through to the bottom of the mounting plate 7 and is fixedly connected to a vibrator 9. A sliding groove 10 is formed on one side of the fixing frame 304. A connecting rod 302 is fixedly connected to one side of the fixing frame 304. The base 1 is equipped with a slider that works with the slide groove 10. Adjusting rods 11 are fixedly connected to the four corners of the bottom of the base 1. Threaded post 12 is threaded to the bottom of the adjusting rod 11. Bottom pad 13 is fixedly connected to the bottom of the threaded post 12. Mounting grooves 14 are provided at the front and rear ends of the top of the base 1. A level 15 is fixedly connected to the inner cavity of the mounting groove 14. An anti-slip pad is provided on one side of the limiting seat 209. The anti-slip pad is made of rubber. A baffle 16 is fixedly connected to the surface of the base 5. A buckle groove is provided on the top of the baffle 16.

[0031] Specifically: The base support 5 is installed inside the base 1 through the limiting groove 4, allowing it to be removed after measurement for quick cleaning of concrete material above it, thus improving the functionality of the device. The cylinder 8 drives the vibrator 9 to descend, and the automatic vibration method avoids errors caused by manual operation, improving the accuracy of data during concrete testing. The cooperation between the slide groove 10 and the slider limits the connecting rod 302, ensuring its stability during movement. The rotating threaded column 12 can adjust the base pad 13 to adjust the level of the device. The mounting groove 14 and the level 15 allow observation of whether the device is level, significantly improving the reliability of measurement results. One side of the protective pad contacts the slide rod 202, increasing friction for the limiting seat 209 and improving the limiting effect of the sliding sleeve 203. The baffle 16 and the buckle groove facilitate the disassembly of the base support 5, improving the ease of installation and cleaning.

[0032] The working principle of this utility model is as follows: The lightweight concrete material to be tested is placed inside the test cylinder 301. By starting the cylinder 8, the cylinder 8 drives the vibrating rod 9 to move up and down, vibrating the material inside the test cylinder 301. By starting the motor 305, the motor 305 drives the threaded rod 303 to rotate. The threaded rod 303 drives the connecting rod 302 to move. The connecting rod 302 drives the test cylinder 301 to move. After the test cylinder 301 is raised at a constant speed, the concrete inside collapses. Then, the measuring ruler 204 is rotated above the material. By pulling the pull rod 206, the pull rod 206 drives the movable plate 205 to move. The movable plate 205 drives the spring 207 to compress, while driving the connecting column 208 to move. The connecting column 208 drives the limiting seat 209 to move. After the limiting seat 209 releases the limiting of the sliding sleeve 203, the sliding sleeve 203 can slide on the surface of the sliding rod 202, thereby achieving the effect of rapid measurement.

[0033] The preferred embodiments of the present utility model disclosed above are only used to help illustrate the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to specific implementation methods. The present specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the present utility model, so that those skilled in the art can better understand and utilize the present utility model.

Claims

1. A lightweight concrete flowability testing device, comprising a base (1), characterized in that: A measuring mechanism (2) is fixedly connected to one side of the top of the base (1), and a test component (3) is fixedly connected to the other side of the top of the base (1); The measuring mechanism (2) includes a mounting frame (201), the bottom of which is fixedly connected to the base (1). A sliding rod (202) is provided on the top of the mounting frame (201). A sliding sleeve (203) is slidably connected to the surface of the sliding rod (202). A measuring scale (204) is fixedly connected to one side of the sliding sleeve (203) by bolts. A movable plate (205) is provided in the inner cavity of the sliding sleeve (203). A pull rod (206) is fixedly connected to the top of one side of the movable plate (205). One side of the pull rod (206) passes through... To the outside of the sliding sleeve (203), a spring (207) is fixedly connected to the bottom of one side of the movable plate (205), one side of the spring (207) is fixedly connected to the inner wall of the sliding sleeve (203), and a connecting post (208) is fixedly connected to the bottom of the other side of the movable plate (205). One side of the connecting post (208) penetrates the inner cavity of the sliding sleeve (203) and extends to the outside of the sliding sleeve (203). A limiting seat (209) is fixedly connected to one side of the connecting post (208), and one side of the limiting seat (209) contacts the sliding rod (202). The test assembly (3) includes a test cylinder (301), a connecting rod (302) is fixedly connected to the top of one side of the test cylinder (301) by bolts, a threaded rod (303) is threadedly connected to one side of the top of the connecting rod (302), a fixing frame (304) is fixedly connected to one side of the top of the base (1), a motor (305) is fixedly connected to the bottom of the fixing frame (304), the output end of the motor (305) is fixedly connected to the threaded rod (303), and the bottom of the threaded rod (303) is movably connected to the base (1) through a bearing.

2. The lightweight concrete fluidity testing device according to claim 1, characterized in that: The inner cavity of the base (1) has a limiting groove (4), and the inner cavity of the limiting groove (4) is slidably connected to a base support (5), the top of the base support (5) being in contact with the test cylinder (301).

3. The lightweight concrete fluidity testing device according to claim 1, characterized in that: Support frames (6) are fixedly connected to both sides of the top rear end of the base (1). An mounting plate (7) is fixedly connected to the opposite side of the support frame (6). A cylinder (8) is fixedly connected to the top of the mounting plate (7). The bottom of the cylinder (8) extends through to the bottom of the mounting plate (7) and is fixedly connected to a vibrating rod (9).

4. The lightweight concrete fluidity testing device according to claim 1, characterized in that: The fixing frame (304) has a sliding groove (10) on one side, and the connecting rod (302) has a slider that cooperates with the sliding groove (10) fixedly connected to one side.

5. The lightweight concrete fluidity testing device according to claim 1, characterized in that: Adjusting rods (11) are fixedly connected to the four corners of the bottom of the base (1). The bottom of the adjusting rods (11) is threadedly connected to a threaded post (12), and the bottom of the threaded post (12) is fixedly connected to a bottom pad (13).

6. The lightweight concrete fluidity testing device according to claim 1, characterized in that: The base (1) has mounting grooves (14) at both the front and rear ends, and a level (15) is fixedly connected to the inner cavity of the mounting groove (14).

7. The lightweight concrete fluidity testing device according to claim 1, characterized in that: The limiting seat (209) is provided with an anti-slip pad on one side, and the anti-slip pad is made of rubber.

8. The lightweight concrete fluidity testing device according to claim 2, characterized in that: A baffle (16) is fixedly connected to the surface of the base (5), and a buckle groove is provided on the top of the baffle (16).

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