Compression resistance testing device for precast concrete component

Abstract

The utility model belongs to the technical field of concrete prefabricated part testing, and particularly relates to a concrete prefabricated part compression resistance testing device which comprises a machining table. A supporting mechanism is arranged on the inner side of the machining table, a detection mechanism is arranged on the top side of the machining table, an adjusting mechanism is arranged on the bottom side of the detection mechanism, the supporting mechanism comprises a rectangular groove, limiting grooves are symmetrically formed in the two sides of the rectangular groove, and one end of a lead screw penetrates through the machining table to be fixedly provided with a rotating disc. A concrete member is placed on the inner side of the limiting plate, all the sleeves are tightly attached to the surface of the bottom side of the limiting plate, at the moment, the rotating disc is rotated, the clamping plates tightly press gravel on the inner side of the rectangular groove, and the gravel on the inner side of the rectangular groove is clamped through the clamping plates. At the moment, the gravel fixes the positions of the sleeves, then the concrete member is detected, and the problem that an existing testing device cannot detect the concrete member in an irregular shape is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete precast component testing, in particular to a device for testing the compressive performance of concrete precast components. Background Technique

[0002] Concrete precast components are precast concrete components outside factories, production bases or sites, and then transported to the site for installation or assembly. This construction method has a shorter construction time and is more efficient than in-situ casting. In order to ensure the normal use of concrete precast components, it is necessary to detect their compressive performance.

[0003] A compressive performance testing device for concrete production with the publication number CN212904195U takes the machine body as the main body. One side of the machine body is fixed with a bottom plate, the top side of the bottom plate is fixed with a supporting plate, a pressing plate is slidably installed on the side of the machine body above the supporting plate, a connecting column is fixed between the bottom plate and the supporting plate, detachable first half-ring blocks and second half-ring blocks are arranged at the edge position of the supporting plate, a hinge shaft is vertically hinged between the first half-ring block and the second half-ring block, receiving grooves are opened on the inner sides of the first half-ring block and the second half-ring block, a positioning component is arranged on the top side of the bottom plate, and a closing component is arranged between the first half-ring block and the second half-ring block. By setting the structure of the receiving groove, the testing device is located at the bottom side of the supporting plate, so as to facilitate the recovery of the waste residues scattered at the supporting plate, keep the machine body clean, and prevent the subsequent cleaning from affecting the processing efficiency of the machine body.

[0004] There are still problems in the above-mentioned compressive performance testing device for concrete production. The testing device can only test concrete components with regular shapes and flat surfaces. If the concrete is irregularly shaped, the test results will be inaccurate due to uneven stress during the detection process. Therefore, a device for testing the compressive performance of concrete precast components is proposed. Content of the Utility Model

[0005] In order to make up for the deficiencies of the prior art, the testing devices on the market can only test concrete components with regular shapes and flat surfaces. If the concrete is irregularly shaped, the test results will be inaccurate due to uneven stress during the detection process. The utility model proposes a device for testing the compressive performance of concrete precast components.

[0006] The technical solution adopted by the utility model to solve its technical problems is as follows: A device for testing the compressive performance of concrete precast components according to the utility model includes a processing table; a support mechanism is arranged inside the processing table, a detection mechanism is arranged on the top side of the processing table, an adjustment mechanism is arranged on the bottom side of the detection mechanism, and a rectangular groove is opened inside the processing table.

[0007] Preferably, the support mechanism includes a rectangular groove. Limiting grooves are symmetrically formed on both sides of the rectangular groove. A sliding rod is fixed inside one of the limiting grooves. A lead screw is rotatably installed inside the other limiting groove, and the thread directions at both ends of the lead screw are opposite. One end of the lead screw passes through the processing table and is fixed with a turntable. Both ends of the sliding rod are slidably fitted with clamping plates through connecting seats. The clamping plates are rotatably connected to the lead screw through the connecting seats. Fixed rods are uniformly fixed to the inner bottom end of the rectangular groove. Sleeves are sleeved on the fixed rods. A first spring is fixedly connected between the sleeve and the inner bottom end of the rectangular groove. The sleeve slidably penetrates through the top side of the processing table. A large amount of grit is stored inside the rectangular groove. A support frame is fixed to one end of the top side of the processing table. Through the structure of multiple sleeves, it fits the bottom surface of the concrete component to be detected, so that the force is uniform during the detection process. When the device detects irregularly shaped components, the detection result is still accurate.

[0008] Preferably, the detection mechanism includes a support frame. A hydraulic cylinder is fixed to the top side of the support frame. A hydraulic rod is slidably installed inside the hydraulic cylinder. The hydraulic rod slidably penetrates through the top side of the support frame. A hollow cylinder is sleeved at the bottom end of the hydraulic rod. Chute grooves are symmetrically formed on the circumferential surface of the hollow cylinder. Scale grooves are formed on the circumferential surface of the hollow cylinder on both sides of the chute grooves. Limiting blocks are symmetrically fixed to the circumferential surface of the bottom end of the hydraulic rod, and the limiting blocks are slidably installed inside the chute grooves. A bottom plate is fixed to the bottom end of the hollow cylinder. A second spring is fixedly connected between the hydraulic rod and the bottom plate. By using the hollow cylinder and the hydraulic cylinder in combination, during the detection process, by observing the telescopic length of the second spring, the pressure received by the concrete is measured, so that it is more convenient for the operator to perform the detection.

[0009] Preferably, the adjustment mechanism includes a bottom plate. Nuts are rotatably installed at the edge positions of the top side of the bottom plate. Threaded rods are rotatably installed inside the nuts. The threaded rods slidably penetrate through the bottom side of the bottom plate. A pressing disc is fixed to the bottom end of the threaded rod. A limiting plate is fixed to the top side of the processing table, and the limiting plate is located at the bottom side of the bottom plate. By adjusting the height of the pressing disc through the cooperation of the nuts, the uneven force on the surface of the concrete component is prevented, and the application range of the testing device is wider.

[0010] The beneficial effects of the present utility model are as follows:

[0011] 1. Through the structural design of a compressive property testing device for concrete precast components, by setting up a support mechanism, the concrete component is placed inside the limit plate. At this time, with the cooperation of the first spring, each sleeve is pushed to closely adhere to the bottom surface of the concrete component. Then, the turntable is rotated to drive the screw rod to move, thereby driving the clamping plate to slide inward on the sliding rod at the same time, so that the clamping plate presses the gravel inside the rectangular groove. At this time, the gravel fixes the positions of the sleeves. Then, the concrete component is tested to prevent inaccurate test results caused by uneven stress, solving the problem that the existing testing device cannot test concrete components with irregular shapes.

[0012] 2. Through the structural design of a compressive property testing device for concrete precast components, by setting up a detection mechanism, the hydraulic cylinder is controlled to extend the hydraulic rod inside it, thereby pushing the bottom plate into contact with the concrete component. At this time, the hydraulic rod continues to extend and compresses the second spring. By observing the position of the limit block in the scale groove, the telescopic length of the second spring can be known, so as to measure the pressure borne by the concrete component. The operation is simple and convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0014] Figure 1 is a schematic perspective view of the overall front view;

[0015] Figure 2 is a schematic perspective sectional view of the rear view of the support mechanism;

[0016] Figure 3 is a schematic perspective view of the side view of the detection mechanism;

[0017] Figure 4 is a schematic perspective view of the front view of the adjustment mechanism;

[0018] Figure 5 is a schematic perspective view of the partial structure top view.

[0019] In the figure: 1. Processing table; 101. Limiting plate; 2. Rectangular groove; 3. Limiting groove; 4. Slide bar; 5. Lead screw; 6. Connecting seat; 7. Clamping plate; 8. Turntable; 9. Fixed rod; 10. Sleeve; 11. First spring; 12. Support frame; 13. Hydraulic cylinder; 14. Hydraulic rod; 15. Hollow cylinder; 16. Limiting block; 17. Chute; 18. Scale groove; 19. Second spring; 20. Base plate; 21. Nut; 22. Threaded rod; 23. Pressing disc; 24. Rubber pad. Specific implementation mode

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0021] Please refer to Figures 1-4 As shown, a compressive performance testing device for concrete precast components includes a processing table 1; a support mechanism is arranged inside the processing table 1, a detection mechanism is arranged on the top side of the processing table 1, an adjustment mechanism is arranged on the bottom side of the detection mechanism, and a rectangular groove 2 is opened inside the processing table 1;

[0022] Please refer to Figure 2 As shown, the support mechanism includes a rectangular groove 2, limiting grooves 3 are symmetrically opened on both sides of the rectangular groove 2, a slide bar 4 is fixed inside one of the limiting grooves 3, a lead screw 5 is rotatably installed inside the other limiting groove 3, and the thread directions at both ends of the lead screw 5 are opposite. One end of the lead screw 5 passes through the processing table 1 and is fixed with a turntable 8. Both ends of the slide bar 4 are slidably fitted with a clamping plate 7 through a connecting seat 6. The clamping plate 7 is rotatably connected with the lead screw 5 through the connecting seat 6. Fixed rods 9 are uniformly fixed at the bottom end inside the rectangular groove 2. Sleeves 10 are sleeved on the fixed rods 9. A first spring 11 is fixedly connected between the sleeve 10 and the bottom end inside the rectangular groove 2. The sleeve 10 slidably penetrates through the top side of the processing table 1. A large amount of gravel is stored inside the rectangular groove 2. One end of the top side of the processing table 1 is fixed with a support frame 12; During work, when encountering the problem that the test results of the existing test device for detecting irregularly shaped concrete components are inaccurate, through the structure of the support mechanism, the concrete component is placed inside the limiting plate 101. At this time, with the cooperation of the first spring 11, each sleeve 10 is pushed to closely adhere to the bottom surface of the concrete component. At this time, rotate the turntable 8 to drive the lead screw 5 to rotate, thereby driving the clamping plate 7 to slide inward on the slide bar 4 at the same time, so that the clamping plate 7 presses the gravel inside the rectangular groove 2. At this time, the gravel fixes the positions of the sleeves 10. Then, the concrete component is detected to prevent inaccurate test results caused by uneven force.

[0023] Please refer to Figure 3 As shown in the figure, the detection mechanism includes a support frame 12. A hydraulic cylinder 13 is fixed to the top side of the support frame 12. A hydraulic rod 14 is slidably installed inside the hydraulic cylinder 13. The hydraulic rod 14 slidably penetrates through the top side of the support frame 12. A hollow cylinder 15 is sleeved at the bottom end of the hydraulic rod 14. Symmetrical sliding grooves 17 are formed on the circumferential surface of the hollow cylinder 15. Scale grooves 18 are formed on the circumferential surface of the hollow cylinder 15 on both sides of the sliding grooves 17. Symmetrical limit blocks 16 are fixedly arranged on the circumferential surface of the bottom end of the hydraulic rod 14, and the limit blocks 16 are slidably installed inside the sliding grooves 17. A bottom plate 20 is fixed to the bottom end of the hollow cylinder 15. A second spring 19 is fixedly connected between the hydraulic rod 14 and the bottom plate 20. During operation, when encountering the problem that the pressure on the concrete member cannot be quickly known, resulting in low detection efficiency, through the structure of the detection mechanism, the hydraulic cylinder 13 is controlled to extend the hydraulic rod 14 inside it, so as to push the bottom plate 20 into contact with the concrete member. At this time, the hydraulic rod 14 continues to extend, compressing the second spring 19. By observing the position of the limit block 16 in the scale groove 18, the telescopic length of the second spring 19 can be known, so as to measure the pressure on the concrete member. The operation is simple and convenient to use.

[0024] Please refer to Figure 4 As shown in the figure, the adjustment mechanism includes a bottom plate 20. Nuts 21 are evenly rotatably installed at the edge position of the top side of the bottom plate 20. A threaded rod 22 is rotatably installed inside the nut 21. The threaded rod 22 slidably penetrates through the bottom side of the bottom plate 20. A pressing plate 23 is fixed to the bottom end of the threaded rod 22. A limiting plate 101 is fixed to the top side of the processing table 1, and the limiting plate 101 is located at the bottom side of the bottom plate 20. During operation, when encountering the problem that the surface of the concrete member is uneven, through the structure of the adjustment mechanism, when the bottom plate 20 descends to a suitable height, at this time, each nut 21 is rotated to push the threaded rod 22 to slide downward on the bottom plate 20, so as to drive the pressing plate 23 into contact with the top surface of the concrete member. Then, the detection mechanism is used to apply pressure to it for detection to ensure more accurate detection results.

[0025] Please refer to Figure 5 As shown in the figure, a rubber pad 24 is fixed inside the limiting plate 101. During operation, when encountering the problem that the concrete member is damaged due to cracking under force and colliding with the limiting plate 101 during the detection process, through the structure of the rubber pad 24, the concrete is separated from the limiting plate 101, so as to protect the limiting plate 101 from being damaged by collision during the detection process.

[0026] Working principle: Prefabricated concrete components are concrete components prefabricated at factories, production bases or places outside the site, and then transported to the site for installation or assembly. This construction method has a shorter construction time and is more efficient than in-situ casting. To ensure the normal use of prefabricated concrete components, it is necessary to conduct compressive performance testing on them. Existing testing devices can only test concrete components with regular shapes and flat surfaces. If the concrete has an irregular shape, the test results will be inaccurate due to uneven stress during the testing process. To solve this problem, by setting up a support mechanism and a testing mechanism, the concrete component is placed inside the limiting plate 101. At this time, with the cooperation of the first spring 11, each sleeve 10 is pushed to closely adhere to the bottom surface of the concrete component. Then, the turntable 8 is rotated, which drives the lead screw 5 to move, thereby driving the clamping plate 7 to slide inward on the slide rod 4 at the same time, so that the clamping plate 7 presses the gravel inside the rectangular groove 2 tightly. At this time, the gravel fixes the positions of the sleeves 10. The hydraulic cylinder 13 is controlled to extend the hydraulic rod 14 inside it, thereby pushing the bottom plate 20 to descend. When the bottom plate 20 descends to an appropriate height, each nut 21 is rotated to push the threaded rod 22 to slide downward on the bottom plate 20, thereby driving the pressure plate 23 to contact the top surface of the concrete component. Then, the hydraulic cylinder 13 is controlled to drive the pressure plate 23 to apply pressure to the surface of the concrete component. The hydraulic rod 14 compresses the second spring 19. By observing the position of the limiting block 16 in the scale groove 18, the telescopic length of the second spring 19 is known, so as to measure the pressure received by the concrete component. After the testing is completed, the hydraulic cylinder 13 is controlled to raise the bottom plate 20, and the concrete component can be taken out, solving the problem that existing testing devices cannot test concrete components with irregular shapes.

[0027] In the description of this specification, the descriptions referring to the terms "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0028] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art of this industry should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed.

Claims

1. A compressive property testing device for precast concrete components, characterized in that: It includes a processing table (1); a support mechanism is arranged inside the processing table (1), a detection mechanism is arranged on the top side of the processing table (1), an adjustment mechanism is arranged on the bottom side of the detection mechanism, and a rectangular groove (2) is formed inside the processing table (1). The support mechanism includes the rectangular groove (2), limiting grooves (3) are symmetrically formed on both sides of the rectangular groove (2), a sliding rod (4) is fixed inside one of the limiting grooves (3), a lead screw (5) is rotatably installed inside the other limiting groove (3), and the thread directions at both ends of the lead screw (5) are opposite. One end of the lead screw (5) passes through the processing table (1) and is fixed with a turntable (8). Both ends of the sliding rod (4) are slidably fitted with clamping plates (7) through connecting seats (6), and the clamping plates (7) are rotatably connected with the lead screw (5) through the connecting seats (6). Fixed rods (9) are uniformly fixed at the bottom end inside the rectangular groove (2), sleeves (10) are sleeved on the fixed rods (9), and a first spring (11) is fixedly connected between the sleeves (10) and the bottom end inside the rectangular groove (2).

2. The compressive property testing device for a precast concrete member according to claim 1, characterized in that: The sleeves (10) slidably penetrate through the top side of the processing table (1), a large amount of grit is stored inside the rectangular groove (2), and a support frame (12) is fixed at one end of the top side of the processing table (1).

3. The compressive property testing device for a concrete precast member according to claim 2, characterized in that: The detection mechanism includes the support frame (12), a hydraulic cylinder (13) is fixed on the top side of the support frame (12), a hydraulic rod (14) is slidably installed inside the hydraulic cylinder (13), the hydraulic rod (14) slidably penetrates through the top side of the support frame (12), and a hollow cylinder (15) is sleeved at the bottom end of the hydraulic rod (14).

4. The compressive property testing device for a precast concrete member according to claim 3, wherein: Chute grooves (17) are symmetrically formed on the circumferential surface of the hollow cylinder (15), scale grooves (18) are formed on the circumferential surface of the hollow cylinder (15) on both sides of the chute grooves (17), limiting blocks (16) are symmetrically fixed on the circumferential surface of the bottom end of the hydraulic rod (14), and the limiting blocks (16) are slidably installed inside the chute grooves (17). A bottom plate (20) is fixed at the bottom end of the hollow cylinder (15), and a second spring (19) is fixedly connected between the hydraulic rod (14) and the bottom plate (20).

5. The compressive property testing device for a precast concrete member according to claim 4, wherein: The adjustment mechanism includes the bottom plate (20), nuts (21) are rotatably installed at the edge positions on the top side of the bottom plate (20), and threaded rods (22) are rotatably installed inside the nuts (21).

6. The compressive property testing device for a precast concrete member according to claim 5, characterized in that: The threaded rods (22) slidably penetrate through the bottom side of the bottom plate (20), a pressing plate (23) is fixed at the bottom end of the threaded rods (22), and a limiting plate (101) is fixed on the top side of the processing table (1), and the limiting plate (101) is located on the bottom side of the bottom plate (20).

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