Plastic concrete fluidity testing device

Abstract

The utility model discloses a plastic concrete fluidity testing device, which belongs to the field of concrete testing and comprises a bottom plate, an inclination mechanism and a testing box, the testing box is arranged on the bottom plate through the inclination mechanism, and the inclination mechanism consists of a support block, a connecting column, a connecting plate, a protective box and a driving component. According to the testing device, the plastic concrete in the testing box flows along the testing box through the inclination mechanism, the flowability of the plastic concrete can be observed from the observation glass window, and the flowability of the plastic concrete can be tested according to different inclination angles through the inclination mechanism; therefore, the data of the fluidity test of the plastic concrete is more and more accurate.

Description

Technical Field

[0001] The utility model belongs to the technical field of concrete testing, and provides a device for testing the fluidity of plastic concrete. Background Technique

[0002] Plastic concrete is a kind of cement-based material with special properties, characterized by its low strength, low elastic modulus and large strain. Due to the low elastic modulus of plastic concrete, it exhibits good flexibility and can well adapt to softer foundations. In addition, plastic concrete also has excellent anti-seepage performance and is widely used in structures such as cut-off walls in water conservancy projects.

[0003] The existing technology has the following deficiencies: During the production of existing plastic concrete, its performance needs to be tested. The existing testing devices cannot arbitrarily adjust the angle of the testing device, resulting in poor testing effects on the fluidity of plastic concrete. After the existing testing devices test the fluidity of plastic concrete, it is not easy to take out the concrete due to its viscosity, thus wasting a lot of time. Content of the Utility Model

[0004] In view of this, the purpose of the present utility model is to provide a device for testing the fluidity of plastic concrete to solve the problems mentioned above.

[0005] To achieve the above purpose, the present utility model provides the following technical solutions:

[0006] The present utility model provides a device for testing the fluidity of plastic concrete, including a bottom plate, an inclination mechanism and a testing box. The testing box is arranged on the bottom plate through the inclination mechanism. The inclination mechanism is composed of a support block, a connecting column, a connecting plate, a protection box and a driving component. Among them, the support block is fixed on the bottom plate, the connecting column is rotatably arranged on the support block, the protection box is fixed on the support block, and one end of the connecting column extends into the protection box and is in transmission connection with the driving component arranged in the protection box; the driving component is composed of a motor, a rotating shaft, a first bevel gear and a second bevel gear. The motor is fixed in the protection box, the output end of the motor is connected with the rotating shaft, a first bevel gear is arranged at the end of the rotating shaft away from the motor, and a second bevel gear meshing with the first bevel gear is arranged at the end of the connecting column extending into the protection box; the testing box is fixedly connected with the connecting column through the connecting plate, and a box door for opening and closing is arranged at the end of the testing box away from the connecting plate. A feeding port is arranged at the top of the testing box near the box door; Observation glass windows are arranged on at least one side wall along the length direction of the testing box. With the above scheme, the design of the testing device takes into account safety and operation convenience, can effectively test and evaluate the fluidity of plastic concrete, and provides reliable data support for construction projects.

[0007] Optionally, there are two sets of connecting plates symmetrically distributed on the connecting column, and two sets of supporting blocks symmetrically distributed on the bottom plate. This double-symmetry design not only enhances the structural stability of the device, reduces the safety risks during operation, but also improves the reliability during the testing process, making the evaluation of the fluidity of plastic concrete more accurate. Overall, this improvement makes the device more practical and safe during use.

[0008] Optionally, the driving component further includes a supporting plate disposed in the protection box and used to support the rotation of the rotating shaft, and a fixing block used to reinforce the installation of the motor. The addition of these two improvements enhances the overall stability and reliability of the driving component, ensuring that the testing device can operate smoothly and accurately during the concrete fluidity test. This not only improves the use safety but also enhances the accuracy of the test results, providing a more reliable data basis for subsequent concrete construction.

[0009] Optionally, a handle is provided on the box door. To ensure that the box door can be smoothly opened or closed during operation, avoiding accidental injuries or equipment damage caused by improper force.

[0010] Optionally, it further includes an opening and closing mechanism for opening and closing the box door on the test box. The opening and closing mechanism consists of a limit block, a connecting rod, a positioning block, a spring, and a limit rod. A positioning block is provided on the box door through the connecting rod, and the limit rod is arranged in the chute in the positioning block through the spring; a limit block is provided on the test box, and a limit groove for inserting the limit rod is opened on the limit block. Through the above setting of the opening and closing mechanism, the box door of the test box can achieve more efficient and stable opening and closing operations during use, greatly improving the use convenience and safety of the device.

[0011] Optionally, the opening and closing mechanism is provided in two sets and is symmetrically arranged relative to both sides of the box door. Through this double-set symmetrically arranged opening and closing mechanism, the box door of the test box can achieve more stable and safe operations during use.

[0012] Optionally, a pull ring is provided on the limit rod. Through the improvement of providing a pull ring on the limit rod, the opening and closing mechanism of the test box is further improved in terms of operation convenience, enabling the operator to be more handy when using the equipment.

[0013] Optionally, a pushing mechanism is provided at one end of the test box close to the connecting column. The pushing mechanism consists of a telescopic device and a pushing plate. The movable column of the telescopic device penetrates into the test box and is connected to the pushing plate arranged in the test box. The telescopic device adopts a cylinder, a hydraulic cylinder, an electro-hydraulic push rod or a linear motor. The design of this pushing mechanism improves the comprehensive performance of the testing device, making the testing process more flexible and efficient. And through different types of telescopic devices, users can select the most suitable configuration according to specific test requirements, so as to meet the requirements of different concrete fluidity tests.

[0014] The beneficial effects of the present utility model are as follows:

[0015] 1. In this plastic concrete fluidity testing device, a motor is provided to rotate the connecting plate, which drives the testing box to rotate and then tilt. When the testing box tilts, the plastic concrete inside the testing box flows along the testing box. The fluidity of the plastic concrete can be effectively observed through the observation glass window. Moreover, the testing device can arbitrarily change the tilting angle, avoiding the influence on the test due to low flexibility of the testing device, enabling the plastic concrete to be tested for fluidity at different tilting angles, so that the data of the plastic concrete fluidity test is more and more accurate.

[0016] 2. In this plastic concrete fluidity testing device, by setting a cylinder, the output end of the cylinder drives the movable column to push forward, the movable column drives the pushing plate to push forward, and the pushing plate pushes out the plastic concrete in the testing box through the opened box door, enabling the plastic concrete to be quickly pushed out after the fluidity test, avoiding the inconvenience of taking out the plastic concrete due to its high viscosity, and effectively improving the speed and efficiency of taking out the plastic concrete.

[0017] Other advantages, objectives, and features of the present utility model will be described to some extent in the subsequent specification, and to some extent, will be obvious to those skilled in the art based on the study of the following text, or can be taught from the practice of the present utility model. The objectives and other advantages of the present utility model can be achieved and obtained through the following specification. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to make the objectives, technical solutions, and advantages of the present utility model clearer, the present utility model will be described in detail preferably with reference to the accompanying drawings, where:

[0019] Figure 1 is a three-dimensional schematic diagram of the plastic concrete fluidity testing device of the present utility model;

[0020] Figure 2 is Figure 1 a sectional schematic diagram of

[0021] Figure 3 is Figure 1 the internal structure schematic diagram of the protective box in

[0022] Figure 4 is Figure 1 the enlarged schematic diagram of part A in

[0023] Figure markings: 1-bottom plate; 2-support block; 3-connecting column; 4-connecting plate; 5-protective box; 6-fixed block; 7-driving motor; 8-support plate; 9-rotating shaft; 10-bevel gear one; 11-bevel gear two; 12-test box; 13-observation glass window; 14-feeding port; 15-cylinder; 16-movable column; 17-push plate; 18-box door; 19-handle; 20-limit block; 21-limit groove; 22-connecting rod; 23-positioning block; 24-slide groove; 25-spring; 26-pull ring; 27-limit rod. DETAILED DESCRIPTION

[0024] The utility model is further described below in conjunction with specific implementation methods. The drawings are only used for exemplary descriptions, and are only schematic diagrams, not actual pictures, and cannot be understood as limitations on this patent; in order to better illustrate the embodiments of the utility model, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0025] like Figures 1-4 As shown, a plastic concrete fluidity testing device mentioned in the utility model includes a base plate 1, a tilting mechanism and a test box 12. The base plate 1 serves as the basis of the device to ensure stability and support the entire test device. The test box 12 is arranged on the base plate 1 through the tilting mechanism. The tilting mechanism consists of a support block 2, a connecting column 3, a connecting plate 4, a protective box 5, and a driving component. The tilting mechanism can realize the tilting of the test box 12, which is convenient for testing the fluidity of concrete. The support block 2 is fixed on the base plate 1, and the connecting column 3 is rotatably arranged on the support block 2. The protective box 5 provides safety protection for the driving component, which is fixed on the support block 2, and one end of the connecting column 3 extends into the protective box 5 and is connected to the driving component arranged in the protective box 5 by transmission; the driving component consists of a motor 7, a rotating shaft 9, and a bevel gear. The connecting column 3 is composed of a first gear 10 and a second gear 11, so that the connecting column 3 can rotate, thereby adjusting the inclination angle of the test box 12. The motor 7 is fixed in the protective box 5, and the output end of the motor 7 is connected with the rotating shaft 9. The end of the rotating shaft 9 away from the motor 7 is provided with a bevel gear 10, and the connecting column 3 is provided with a second gear 11 meshing with the bevel gear 10 at one end extending into the protective box 5; the test box 12 is fixedly connected to the connecting column 3 through the connecting plate 4, and the test box 12 is provided with an opening and closing box door 18 at the away end away from the connecting plate 4, and the test box 12 is provided with a feed port 14 at the top near the box door 18 for easy operation and cleaning; observation glass windows 13 are provided on both side walls along the length direction of the test box 12, so that the flow of concrete can be observed during the test, which is convenient for real-time monitoring and recording.

[0026] When in use, plastic concrete is added into the test box 12 through the feed port 14, and the motor 7 is driven. The output end of the motor drives the rotating shaft 9 to rotate, and the rotating shaft 9 drives the bevel gear 10 to rotate on the supporting plate 8. The rotation of the bevel gear 10 drives the bevel gear 2 11 to rotate, and the rotation of the bevel gear 2 11 drives the connecting column 3 to rotate. The rotation of the connecting column 3 drives the connecting plate 4 to rotate relative to the supporting block 2, and the rotation of the connecting plate 4 drives the test box 12 to rotate, thereby tilting the test box 12. The driving motor 7 is stopped, and the test box 12 is tilted to make the plastic concrete in the test box 12 flow along the test box 12. The fluidity of the plastic concrete can be effectively observed from the observation glass window 13, so that the test device can change the tilt angle at will, and the test device is not flexible enough to affect the test. The fluidity of the plastic concrete can be tested according to different tilt angles, so that the data of the fluidity test of the plastic concrete is more and more accurate.

[0027] In this embodiment, the connecting plates 4 are provided with two groups and are symmetrically distributed on the connecting columns 3, and the supporting blocks 2 are provided with two groups and are symmetrically distributed on the bottom plate 1. The symmetrical layout of the connecting plates 4 can effectively and evenly distribute the weight of the test box 12, enhance the stability of the structure, reduce the deviation or shaking that may occur during the tilting process, and improve the accuracy of the test. The design of the supporting block 2 can further enhance the supporting capacity of the bottom plate 1, making the entire device more stable when performing the tilt test. The symmetrically distributed supporting blocks can balance the center of gravity of the test device, which helps to maintain the balance state of the device at different tilt angles. The driving component also includes a supporting plate 8 arranged in the protective box 5 and used to support the rotation of the rotating shaft 9 and a fixing block 6 for reinforcing the installation of the motor 7. The addition of the supporting plate 8 can effectively reduce the vibration of the rotating shaft 9 during the rotation process, ensure that the output force of the motor 7 can be smoothly transmitted to the connecting column 3, and then accurately adjust the tilt angle of the test box 12, so that by providing a stable support surface, the supporting plate 8 can extend the service life of the rotating shaft and improve the reliability of the entire test device. The presence of the fixing block can ensure that the motor 7 will not be displaced or shaken during operation, further improving the stability of the driving component. The design of the fixing block takes into account the vibration and load of the motor, and can effectively resist the impact force generated during operation, ensuring that the motor works stably for a long time. The motor 4 uses a servo motor for easy control operation.

[0028] In this embodiment, an opening and closing mechanism is provided between the test chamber 12 and the chamber door 18. There are two sets of such mechanisms, which are symmetrically arranged relative to both sides of the chamber door 18 and are used to open or close the chamber door 18. The symmetrical arrangement of these two sets of opening and closing mechanisms can evenly distribute the forces on the chamber door during opening and closing, reducing tilting or deformation caused by unilateral force application, thereby improving the stability of the chamber door 18. At the same time, when a failure occurs on either side of the chamber door, the opening and closing mechanisms arranged symmetrically can still operate normally on the other side, ensuring that the chamber door will not accidentally open or close during the test process and enhancing the safety of use. The opening and closing mechanism consists of a limit block 20, a connecting rod 22, a positioning block 23, a spring 25, and a limit rod 27, ensuring the stability and safety of the chamber door 18 during the test process. A positioning block 23 is arranged on the chamber door 18 through the connecting rod 22. The connecting rod 22 is used to connect the chamber door 18 and the positioning block 23 and is responsible for transmitting force, thereby realizing the opening and closing of the chamber door 18. That is, during the operation process, the connecting rod 22 can effectively transmit the operating force, making the opening and closing of the chamber door 18 smoother. The positioning block 23 is connected to the chamber door through the connecting rod 22, ensuring that the chamber door 18 can maintain a certain position during opening and closing and avoiding operation difficulties caused by improper positions. The limit rod 27 is arranged in the chute 24 inside the positioning block 23 through the spring 25. The spring 25 is responsible for providing a certain elastic force to ensure that the chamber door 18 can automatically reach the locked and safe position after closing. At the same time, the presence of the spring 25 can also buffer the impact during the opening and closing of the chamber door 18, protecting the equipment and the operator. The limit rod 27 can play a guiding and limiting role during the opening and closing process, ensuring the accuracy and safety of the opening and closing of the chamber door 18. A limit block 20 is arranged on the test chamber 12. The function of the limit block 20 is to limit the opening and closing state of the chamber door 18, prevent accidents when the chamber door 18 opens or closes, and ensure safe use. A limit groove 21 into which the limit rod 27 is inserted is provided on the limit block 20. A pull ring 26 is provided on the limit rod 27. The setting of the pull ring 26 makes it more convenient for the operator to open and close the chamber door 18. Through the pull ring 26, the limit rod is easier to grasp during use. The operator can easily pull the limit rod to control the opening and closing of the chamber door 18, improving work efficiency. A handle 19 is arranged on the chamber door 18. Through the handle 19, the convenience of opening and closing the chamber door 18 can be improved, making it easier for the operator to pour and clean the concrete. The setting of the handle 19 not only provides a good grip but also can reduce the physical effort consumed during operation to a certain extent, enhancing work efficiency.

[0029] In another embodiment, a pushing mechanism is provided at one end of the test box 12 close to the connecting column 3, which can push the concrete sample inside the test box 12. The pushing mechanism consists of a telescopic device 15 and a pushing plate 17. The telescopic device 15 uses a cylinder and is controlled by gas pressure for telescoping, enabling quick response and precise control. The movable column 16 of the telescopic device 15 penetrates into the test box 12 and is connected to the pushing plate 17 arranged inside the test box 12. Through the telescopic action of the telescopic device 15, the forward and backward movement of the pushing plate 17 can be realized, thereby applying a thrust to the concrete sample in the test box 12. Of course, in different examples, the telescopic device 15 can also use a hydraulic cylinder, an electro-hydraulic push rod or a linear motor.

[0030] After the test, pull the pull ring 26. The pull ring 26 drives the limit rod 27 to move downward. The limit rod 27 squeezes the spring 25, and the limit rod 27 moves and then slides out of the limit groove 21 of the limit block 20. Pull the handle 19, and the handle 19 drives the box door 18 to rotate and open along the test box 12. Set the cylinder-type telescopic device 15, and its output end drives the movable column 16 to push forward. The movable column 16 drives the pushing plate 17 to push forward, and the pushing plate 17 pushes the plastic concrete in the test box 12 out through the opened box door 18, enabling the plastic concrete to be quickly pushed out after the test of the fluidity performance, avoiding the inconvenience of taking out the plastic concrete due to its viscosity, and effectively improving the speed and efficiency of taking out the plastic concrete.

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the purpose and scope of the present technical solution, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A plastic concrete fluidity testing device, comprising a bottom plate (1), an inclination mechanism, and a testing box (12), characterized in that, The test box (12) is provided on the bottom plate (1) through an inclination mechanism. The inclination mechanism consists of a support block (2), a connecting column (3), a connecting plate (4), a protection box (5), and a driving component. Among them, the support block (2) is fixed on the bottom plate (1), the connecting column (3) is rotatably arranged on the support block (2), the protection box (5) is fixed on the support block (2), and one end of the connecting column (3) extends into the protection box (5) and is in transmission connection with the driving component arranged in the protection box (5). The driving component consists of a motor (7), a rotating shaft (9), a first bevel gear (10), and a second bevel gear (11). The motor (7) is fixed in the protection box (5), the output end of the motor (7) is connected with a rotating shaft (9), a first bevel gear (10) is arranged at the end of the rotating shaft (9) away from the motor (7), and a second bevel gear (11) meshing with the first bevel gear (10) is arranged at the end of the connecting column (3) extending into the protection box (5). The test box (12) is fixedly connected to the connecting column (3) through the connecting plate (4), and an opening and closing door (18) is arranged at the end of the test box (12) away from the connecting plate (4). A feeding port (14) is arranged at the top of the test box (12) near the door (18). Observation glass windows (13) are arranged on at least one side wall along the length direction of the test box (12).

2. The plastic concrete fluidity testing device according to claim 1, characterized in that, There are two groups of the connecting plates (4) and they are symmetrically distributed on the connecting column (3). There are two groups of the support blocks (2) and they are symmetrically distributed on the bottom plate (1).

3. The plastic concrete fluidity testing device according to claim 1, characterized in that, The driving component further includes a support plate (8) arranged in the protection box (5) and used for supporting the rotation of the rotating shaft (9) and a fixing block (6) used for strengthening the installation of the motor (7).

4. The plastic concrete fluidity testing device according to claim 1, characterized in that A handle (19) is arranged on the door (18).

5. The plastic concrete fluidity testing device according to claim 1, characterized in that, It further includes an opening and closing mechanism for opening and closing the door (18) on the test box (12). The opening and closing mechanism consists of a limit block (20), a connecting rod (22), a positioning block (23), a spring (25), and a limit rod (27). A positioning block (23) is arranged on the door (18) through the connecting rod (22). The limit rod (27) is arranged in a sliding groove (24) in the positioning block (23) through the spring (25). A limit block (20) is arranged on the test box (12), and a limit groove (21) inserted with the limit rod (27) is opened on the limit block (20).

6. The plastic concrete fluidity testing device according to claim 5, wherein, The opening and closing mechanism is arranged in two groups and is symmetrically arranged relative to both sides of the door (18).

7. The plastic concrete fluidity testing device according to claim 6, characterized in that, A pull ring (26) is arranged on the limit rod (27).

8. The plastic concrete fluidity testing device according to any one of claims 1-7, characterized in that, A pushing mechanism is arranged at one end of the test box (12) close to the connecting column (3). The pushing mechanism consists of a telescopic device (15) and a pushing plate (17). The movable column (16) of the telescopic device (15) penetrates into the test box (12) and is connected with the pushing plate (17) arranged in the test box (12).

9. The plastic concrete fluidity testing device according to claim 8, characterized in that The telescopic device (15) adopts a cylinder, a hydraulic cylinder, an electro-hydraulic push rod, or a linear motor.

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