A quality testing device for building concrete slabs

Abstract

This utility model discloses a quality testing device for building concrete slabs, including a support platform and a support frame. The support frame is mounted on the top of the support platform, and a top plate is mounted on the top of the support frame. A placement platform is mounted at the center of the top of the support platform. Multiple sets of integrated frames at equal intervals are mounted on the side walls of the placement platform. Each integrated frame has a stepper motor mounted on its side wall, and each stepper motor has a lead screw mounted on its output end, which is movably connected to the placement platform. Each lead screw has a threaded sleeve fitted onto its surface, and the threaded sleeve is threadedly connected to the lead screw. Each threaded sleeve has a clamping block on its surface, which is slidably connected to the integrated frame. This utility model not only achieves convenient adaptation and clamping of concrete slabs of different sizes and shapes, facilitating flexible adaptation to different testing points and blocking and protecting against flying debris, but also improves the flexibility of concrete slab testing and the safety during use.

Description

Technical Field

[0001] This utility model relates to the field of concrete production testing technology, specifically a quality testing device for building concrete slabs. Background Technology

[0002] A concrete slab is a flat, flat structure made of concrete. Concrete is a composite material composed of aggregates, cement, water, and other additives, possessing characteristics such as high strength, durability, and good fire resistance. Therefore, concrete slabs are widely used in building and foundation engineering, such as floor slabs, ground slabs, and foundation slabs. After the concrete slabs are produced, their quality needs to be tested. Common quality tests often involve compressive strength testing, which applies a rated pressure to the concrete slab. If the slab does not crack, it indicates that the current concrete slab is of acceptable quality. During the testing process, the concrete slab needs to be kept still, requiring clamps to hold it in place. However, different sizes of concrete slabs require different clamps, which is costly. Therefore, it is necessary to design a testing device that can adapt to different sizes to test concrete slabs.

[0003] For example, the concrete slab quality testing device for building construction disclosed in the authorization announcement number CN215492929U includes a counterweight base plate, a support column installed above the counterweight base plate, a top plate installed above the support column; a mounting plate disposed at the rear end of the support column; a transfer handle fixedly installed above the top plate; an electric push rod installed on the left side of the support column, a fixing block fixedly installed above the electric push rod; a motor installed at the rear end of the electric push rod; and a transmission shaft disposed on the right side of the mounting plate.

[0004] Although the quality inspection device is equipped with a first and second inspection hammer with a symmetrical structure, it can continuously knock and inspect concrete slabs under the drive of a motor, thereby replacing manual knocking and inspection, saving a lot of time and manpower, and improving the inspection efficiency of concrete slabs.

[0005] However, the existing testing devices are not conducive to conveniently adapting to and clamping concrete slabs of different sizes and shapes, nor are they suitable for flexible adaptation to different testing points or for blocking and protecting against flying debris, which affects the flexibility of concrete slab testing and the safety of use. Utility Model Content

[0006] The purpose of this utility model is to provide a quality testing device for building concrete slabs, so as to solve the problems mentioned in the background art, which are not convenient to adapt to and clamp concrete slabs of different sizes and shapes, are not conducive to flexible adaptation to different testing points and blocking and protecting against flying debris, thus affecting the flexibility of concrete slab testing and the safety during use.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a quality testing device for building concrete slabs, comprising a support platform and a support frame, wherein the support frame is installed at the top of the support platform, a top plate is installed at the top of the support frame, a placement platform is installed at the center of the top of the support platform, multiple sets of integrated frames at equal intervals are installed on the side wall of the placement platform, each integrated frame is equipped with a stepper motor, and each stepper motor has a lead screw installed at its output end, and the lead screw is movably connected to the placement platform.

[0008] Preferably, the surface of the lead screw is fitted with a threaded sleeve, and the threaded sleeve is threadedly connected to the lead screw.

[0009] Preferably, the surface of the threaded sleeve is provided with clamping blocks, and the clamping blocks are slidably connected to the integrated frame.

[0010] Preferably, a hydraulic cylinder is installed at the top of the top plate, and a push arm is installed at the output end of the hydraulic cylinder.

[0011] Preferably, a sliding frame is installed at the bottom end of the push arm, and the sliding frame is slidably connected to the support frame.

[0012] Preferably, the bottom end of the sliding frame is equipped with a mounting block, and the surface of the mounting block is provided with multiple sets of mounting grooves.

[0013] Preferably, a pressure rod is provided inside the mounting groove, and the pressure rod is threadedly connected to the mounting groove.

[0014] Preferably, the support frame is provided with a main protective cover on its exterior, and the main protective cover is connected to the sliding frame.

[0015] Preferably, a secondary protective cover is provided inside the main protective cover, and the secondary protective cover is slidably connected to the main protective cover.

[0016] Preferably, the top of the secondary protective cover is equipped with multiple sets of springs at equal intervals, and the springs are connected to the main protective cover.

[0017] Compared with the prior art, the beneficial effects of this utility model are: the detection device not only realizes convenient adaptation and clamping of concrete slabs of different sizes and shapes, which facilitates flexible adaptation to different detection points and blocking and protecting against flying debris, but also improves the flexibility of concrete slab detection and the safety during use.

[0018] (1) Place the concrete slab to be tested on the placement platform. The stepper motor drives the lead screw to rotate, and the lead screw drives the clamping blocks to move through the threaded sleeve. With the cooperation of multiple sets of clamping blocks, the clamping blocks clamp and fix the concrete slab on the placement platform. At the same time, because the clamping blocks are designed in multiple sets, and each set of clamping blocks has a different clamping direction, the clamping blocks can clamp and fix concrete slabs of different shapes and sizes. Then, insert the pressure rod into the inside of the mounting groove and tighten it. Because the mounting groove is designed in multiple sets, the pressure rod can be inserted into different mounting grooves to adapt to different testing methods. The measuring point is moved by a hydraulic cylinder, which drives the push arm to move. The push arm then moves the sliding frame, which in turn moves the mounting block and pressure rod downwards, so that the pressure rod contacts the concrete slab. Since the pressure of the hydraulic cylinder is rated, if cracks appear in the slab after a rated time of compression, it means that the slab is unqualified; otherwise, it means that it is qualified. This completes the quality inspection of the concrete slab. It achieves convenient adaptation and clamping of concrete slabs of different sizes and shapes, facilitates flexible adaptation to different testing points, and improves the flexibility of concrete slab testing.

[0019] (2) Concrete slabs are prone to generating flying debris during testing. To prevent flying debris from injuring people, the sliding frame moves downwards, and the main protective cover moves downwards, which in turn moves the secondary protective cover downwards. When the secondary protective cover touches the ground, the main protective cover continues to move downwards. The secondary protective cover compresses the spring and moves inside the main protective cover to prevent damage caused by excessive stroke of the push arm, which would result in hard contact between the secondary protective cover and the ground. The main and secondary protective covers cover the concrete slabs, preventing flying debris from injuring workers. This facilitates the blocking and protection of flying debris and improves the safety of operators during use. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0021] Figure 2 This is a three-dimensional structural diagram of the present invention;

[0022] Figure 3 This is a frontal cross-sectional view of the present invention.

[0023] Figure 4 For the present utility model Figure 3 Enlarged structural diagram at point A in the middle;

[0024] Figure 5 This is a three-dimensional perspective structural diagram of the mounting block of this utility model;

[0025] Figure 6 This is a three-dimensional structural diagram of the main and auxiliary protective covers of this utility model.

[0026] In the diagram: 1. Support platform; 2. Support frame; 3. Hydraulic cylinder; 4. Main protective cover; 5. Secondary protective cover; 6. Sliding frame; 7. Mounting block; 8. Push arm; 9. Pressure rod; 10. Placement platform; 11. Integrated frame; 12. Threaded sleeve; 13. Lead screw; 14. Stepper motor; 15. Clamping block; 16. Mounting groove; 17. Spring; 18. Top plate. Detailed Implementation

[0027] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0028] Please see Figure 1-6 An embodiment of this utility model provides a quality testing device for building concrete slabs, including a support platform 1 and a support frame 2. The support frame 2 is installed at the top of the support platform 1, and a top plate 18 is installed at the top of the support frame 2. A placement platform 10 is installed at the center of the top of the support platform 1. Multiple sets of integrated frames 11 with equal spacing are installed on the side wall of the placement platform 10. Each integrated frame 11 has a stepper motor 14 installed on its side wall. The stepper motor 14 plays a power driving role. Each output end of the stepper motor 14 is equipped with a lead screw 13, and the lead screw 13 is movably connected to the placement platform 10. Each lead screw 13 has a threaded sleeve 12 fitted on its surface, and the threaded sleeve 12 is threadedly connected to the lead screw 13. Each threaded sleeve 12 has a clamping block 15 on its surface, and the clamping block 15 is slidably connected to the integrated frame 11.

[0029] A hydraulic cylinder 3 is installed at the top of the top plate 18. The hydraulic cylinder 3 serves as a power drive. A push arm 8 is installed at the output end of the hydraulic cylinder 3. A sliding frame 6 is installed at the bottom end of the push arm 8, and the sliding frame 6 is slidably connected to the support frame 2.

[0030] A mounting block 7 is installed at the bottom of the sliding frame 6. The surface of the mounting block 7 is provided with multiple sets of mounting grooves 16. A pressure rod 9 is provided inside the mounting groove 16, and the pressure rod 9 is threadedly connected to the mounting groove 16.

[0031] The concrete slab to be tested is placed on the placement platform 10. The stepper motor 14 is turned on, driving the lead screw 13 to rotate. With the lead screw 13 threadedly connected to the threaded sleeve 12 and the clamping block 15 slidingly engaged with the integrated frame 11, the lead screw 13 moves the clamping block 15 through the threaded sleeve 12. With the cooperation of multiple sets of clamping blocks 15, the concrete slab is clamped and fixed on the placement platform 10. Since the clamping blocks 15 are designed in multiple sets, and each set of clamping blocks 15 has a different clamping direction, the clamping blocks 15 can clamp and fix concrete slabs of different shapes and sizes. Then, the pressure rod 9 is inserted into the installation groove 16 and tightened. Because the installation groove 16 is designed in multiple sets, it can be used to clamp and fix concrete slabs of different shapes and sizes. A pressure rod 9 is inserted into the slot 16 to adapt to different test points. Then, the hydraulic cylinder 3 is opened, which drives the push arm 8 to move. The push arm 8 drives the sliding frame 6 to move. Under the sliding cooperation between the sliding frame 6 and the support frame 2, the sliding frame 6 drives the mounting block 7 and the pressure rod 9 to move downward so that the pressure rod 9 contacts the concrete slab. Since the pressure of the hydraulic cylinder 3 is rated, if the slab cracks after the rated time of compression, it means that the slab is unqualified, otherwise it means that it is qualified. This completes the quality inspection of the concrete slab. It realizes convenient adaptation and clamping of concrete slabs of different sizes and shapes, facilitates flexible adaptation to different test points, and improves the flexibility of concrete slab inspection.

[0032] The support frame 2 is provided with a main protective cover 4 on the outside, and the main protective cover 4 is connected to the sliding frame 6. The main protective cover 4 is provided with a secondary protective cover 5 inside, and the secondary protective cover 5 is slidably connected to the main protective cover 4.

[0033] Multiple sets of springs 17 with equal spacing are installed at the top of the secondary protective cover 5, and the springs 17 are connected to the main protective cover 4.

[0034] Concrete slabs are prone to generating flying debris during testing. To prevent injury from this debris, as the sliding frame 6 moves downward, the main protective cover 4 moves downward, and the main protective cover 4 moves the secondary protective cover 5 downward. When the secondary protective cover 5 touches the ground, the main protective cover 4 continues to move downward, and the secondary protective cover 5 compresses the spring 17 and moves inside the main protective cover 4. This prevents the secondary protective cover 5 from making hard contact with the ground due to excessive stroke of the push arm 8, thus avoiding damage. The main protective cover 4 and the secondary protective cover 5 cover the concrete slab, preventing flying debris from injuring workers. This facilitates the blocking and protection of flying debris and improves the safety of operators during use.

[0035] Working principle: The concrete slab to be tested is placed on the placement platform 10. The stepper motor 14 drives the lead screw 13 to rotate, and the lead screw 13 drives the clamping block 15 to move through the threaded sleeve 12. With the cooperation of multiple sets of clamping blocks 15, the concrete slab is clamped and fixed on the placement platform 10. Since the clamping blocks 15 are designed in multiple sets, and each set of clamping blocks 15 has a different clamping direction, the clamping blocks 15 can clamp and fix concrete slabs of different shapes and sizes. Then, the pressure rod 9 is inserted into the installation groove 16 and tightened. Since the installation groove 16 is designed in multiple sets, the pressure rod 9 can be inserted into different installation grooves 16 to adapt to different test points. The hydraulic cylinder 3 drives the push arm 8 to move, and the push arm 8 drives the sliding frame 6 to move. With the sliding frame 6 and the support frame 2 sliding together, the sliding frame 6 drives the installation block 7 and the pressure rod 9. The hydraulic cylinder 3 moves downwards to bring the pressure rod 9 into contact with the concrete slab. Since the pressure of the hydraulic cylinder 3 is rated, if cracks appear on the slab after the rated compression time, it means that the slab is unqualified; otherwise, it means that it is qualified. This completes the quality inspection of the concrete slab. Concrete slabs are prone to generating flying debris during inspection. To avoid injury from flying debris, as the sliding frame 6 moves downwards, the sliding frame 6 drives the main protective cover 4 to move downwards, and the main protective cover 4 drives the secondary protective cover 5 to move downwards. When the secondary protective cover 5 contacts the ground, the main protective cover 4 continues to move downwards. The secondary protective cover 5 compresses the spring 17 and moves inside the main protective cover 4 to avoid damage caused by the secondary protective cover 5 making hard contact with the ground due to excessive stroke of the push arm 8. The main protective cover 4 and the secondary protective cover 5 cover the concrete slab to prevent flying debris from injuring the workers.

[0036] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any indirect modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A device for detecting the quality of a building concrete slab, comprising a support table (1) and a support frame (2), characterized in that: A support frame (2) is installed at the top of the support platform (1), and a top plate (18) is installed at the top of the support frame (2). A placement platform (10) is installed at the center of the top of the support platform (1). Multiple sets of integrated frames (11) with equal spacing are installed on the side wall of the placement platform (10). A stepper motor (14) is installed on the side wall of each integrated frame (11). A lead screw (13) is installed at the output end of each stepper motor (14), and the lead screw (13) is movably connected to the placement platform (10).

2. The quality detection device for building concrete slabs according to claim 1, characterized in that: The surface of the lead screw (13) is fitted with a threaded sleeve (12), and the threaded sleeve (12) is threadedly connected to the lead screw (13).

3. The quality testing device for building concrete slabs according to claim 2, characterized in that: All surfaces of the threaded sleeve (12) are provided with clamping blocks (15), and the clamping blocks (15) are slidably connected to the integrated frame (11).

4. The quality detection device for building concrete slabs according to claim 3, characterized in that: A hydraulic cylinder (3) is installed at the top of the top plate (18), and a push arm (8) is installed at the output end of the hydraulic cylinder (3).

5. The quality detection device for building concrete slabs according to claim 4, characterized in that: The bottom end of the push arm (8) is equipped with a sliding frame (6), and the sliding frame (6) is slidably connected to the support frame (2).

6. The quality detection device for building concrete slabs according to claim 5, characterized in that: The bottom end of the sliding frame (6) is equipped with a mounting block (7), and the surface of the mounting block (7) is provided with multiple sets of mounting grooves (16).

7. The quality detection device for building concrete slabs according to claim 6, characterized in that: The mounting groove (16) is provided with a pressure rod (9) inside, and the pressure rod (9) is threadedly connected to the mounting groove (16).

8. The quality testing device for building concrete slabs according to claim 7, characterized in that: The support frame (2) is provided with a main protective cover (4) on its outside, and the main protective cover (4) is connected to the sliding frame (6).

9. The quality detection device for building concrete slabs according to claim 8, characterized in that: The main protective cover (4) is provided with a secondary protective cover (5) inside, and the secondary protective cover (5) is slidably connected to the main protective cover (4).

10. The quality detection device for building concrete slabs according to claim 9, characterized in that: The top of the secondary protective cover (5) is equipped with multiple sets of springs (17) at equal intervals, and the springs (17) are connected to the main protective cover (4).

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