Concrete slab pressure test device

Abstract

The utility model relates to a concrete slab pressure testing device which comprises a bearing table, rotating rolling shafts are arranged on the two sides of the upper end of the bearing table, a sliding plate is arranged at the upper ends of the two rotating rolling shafts, and portal frames are arranged at the two ends of the bearing table. The utility model relates to the technical field of concrete slab pressure test experimental equipment. According to the concrete slab pressure testing device, movement of a hydraulic push rod is controlled through a threaded push rod and a threaded hole, when hardness detection is conducted on a concrete slab, the hydraulic push rod is moved to the position over rotating rolling shafts, and when the anti-bending capacity of the concrete slab is detected, the hydraulic push rod is moved to the position between the two rotating rolling shafts; the device can detect the compression capacity and the bending resistance of the concrete slab, the practicability of the device is effectively improved, and through the arrangement of a movable hydraulic push rod, the detection point of the concrete slab can be rapidly changed, and the effect of improving the detection accuracy is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete slab pressure test experimental equipment, in particular to a concrete slab pressure test device. Background Art

[0002] Engineering testing is an important task to ensure the safety of construction projects that have been built, are under construction, and will be built. It tests the foundation, building materials, construction technology, and building structure related to the building during the entire construction process. Since concrete is often used in current construction projects, it is very important to test the compressive strength of concrete when conducting engineering testing. The compressive strength of concrete can be tested using a concrete pressure testing device for engineering testing.

[0003] In the prior art, when a pressure test is performed on a prefabricated concrete block, the concrete block is generally placed on a press table, and then pressure is applied to the concrete block by a hydraulic mechanism to achieve the effect of testing the bearing capacity of the concrete. However, due to the large end surface area of ​​the concrete slab, the existing pressure test device needs to continuously adjust the position of the concrete slab for different pressure application positions when performing a pressure test on the concrete, thereby causing the problem of low efficiency of the concrete slab during the pressure test.

[0004] Furthermore, during the pressure test, the concrete slab needs to be tested for its bending resistance relative to the concrete block, but the existing pressure testing devices are generally difficult to monitor the bending resistance of the concrete slab. Utility Model Content

[0005] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a concrete slab pressure testing device so as to solve the technical problems mentioned in the above background technology.

[0006] The above technical objectives of the utility model are achieved through the following technical solutions:

[0007] A concrete slab pressure testing device comprises a supporting platform, rotating rollers are arranged on both sides of the upper end of the supporting platform, a sliding plate is arranged on the upper ends of the two rotating rollers, gantries are arranged at both ends of the supporting platform, adjacent surfaces of the two gantries are connected with guide rods, hydraulic push rods are arranged on the outer surfaces of the two guide rods, a pressure roller is arranged on the bottom end of the hydraulic push rod, and a cleaning mechanism is arranged above the pressure roller.

[0008] Furthermore, the pressure roller includes a U-shaped frame, the U-shaped frame is fixedly connected to the bottom end of the hydraulic push rod, the bottom end of the U-shaped frame is rotatably mounted with a pressure shaft roller, and both ends of the pressure shaft roller are fixedly mounted with linkage gears.

[0009] Furthermore, the cleaning mechanism includes a connecting rod, the outer wall of which is wound with a spiral metal rod, the connecting rod is rotatably connected to the inner side of the U-shaped frame, and both ends of the connecting rod are provided with driven gears meshing with the linkage gear.

[0010] Furthermore, a mounting plate is fixedly connected to one side of the two gantries, a sliding groove is provided at the upper end of the mounting plate, an extension plate is slidably connected inside the sliding groove, and a linkage tooth plate meshing with the linkage gear is provided at the top of the extension plate.

[0011] Furthermore, the sliding plate includes a connecting plate, a positioning groove is provided at the upper end of the connecting plate at a position corresponding to the rotating roller, a limiting plate is provided at one end of the connecting plate, and the end of the rotating roller close to the limiting plate is arc-shaped.

[0012] Furthermore, a threaded push rod is commonly connected to the middle parts of the two gantries, and threaded holes are provided at positions corresponding to the hydraulic push rod and the threaded push rod, and the threaded push rod is threadably matched with the threaded hole.

[0013] In summary, the present invention includes at least one of the following beneficial technical effects:

[0014] 1. A concrete slab pressure test device controls the movement of a hydraulic push rod through a threaded push rod and a threaded hole. When testing the hardness of a concrete slab, the hydraulic push rod is moved to the position directly above the rotating roller, and when testing the bending resistance of the concrete slab, the hydraulic push rod is moved to the position between the two rotating rollers, so that the device can test the pressure bearing capacity and bending resistance of the concrete slab, effectively improving the practicability of the device, and through the setting of the movable hydraulic push rod, the detection point of the concrete slab can be quickly changed, thereby achieving the effect of improving the accuracy of the detection;

[0015] 2. This concrete slab pressure testing device is used to install an extension plate through the setting of a mounting plate and a sliding groove, and the extension plate is pushed upward by the internal air pressure of the bottom cavity inside the sliding groove, so that the linkage tooth plate is always in contact with the linkage gear. During the movement of the hydraulic push rod, the pressure shaft roller is rotated, and then the connecting rod and the spiral metal rod are cooperated to remove the gravel on the surface of the pressure shaft roller. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 The utility model is a structural schematic diagram of a concrete slab pressure testing device.

[0018] Figure 2 The utility model is a structural schematic diagram of a sliding plate of a concrete slab pressure testing device.

[0019] Figure 3 The utility model is a schematic structural diagram of a pressure roller and a cleaning mechanism of a concrete slab pressure testing device.

[0020] In the figure, 1, support platform; 2, rotating roller; 3, sliding plate; 31, connecting plate; 32, positioning groove; 33, limit plate; 4, gantry; 41, mounting plate; 42, sliding groove; 43, extension plate; 44, linkage gear plate; 45, threaded push rod; 46, threaded hole; 5, guide rod; 6, hydraulic push rod; 7, pressure roller; 71, U-shaped frame; 72, pressure shaft roller; 73, linkage gear; 8, cleaning mechanism; 81, connecting rod; 82, spiral metal rod; 83, driven gear. DETAILED DESCRIPTION

[0021] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0022] Example:

[0023] Reference Figure 1-Figure 3 The utility model discloses a concrete slab pressure testing device, comprising a supporting platform 1, rotating rollers 2 are arranged on both sides of the upper end of the supporting platform 1, a sliding plate 3 is arranged on the upper ends of the two rotating rollers 2, a gantry 4 is arranged at both ends of the supporting platform 1, a guide rod 5 is connected to the adjacent sides of the two gantries 4, a hydraulic push rod 6 is arranged on the outer surfaces of the two guide rods 5, a pressure roller 7 is arranged at the bottom end of the hydraulic push rod 6, and a cleaning mechanism 8 is arranged above the pressure roller 7.

[0024] In this embodiment, when in use, the sliding plate 3 is pulled out, and the concrete slab is placed on the top of the sliding plate 3. The sliding plate 3 is pushed into the top of the supporting platform 1, and the concrete slab is lifted up by the rotating roller 2, so that the bottom end of the concrete slab is suspended in the air, and the bottom two sides of the concrete slab are in contact with the rotating roller 2. The moving direction of the hydraulic push rod 6 is guided by the setting of the guide rod 5. When the hardness of the concrete slab is tested, the hydraulic push rod 6 is moved to the top of the rotating roller 2, and the pressure roller 7 is pushed downward by the hydraulic push rod 6, so that the hydraulic push rod 6 and the rotating roller 2 clamp the concrete slab, and the hydraulic push rod 6 continues to press the concrete slab until the concrete slab is broken. At this time, the hydraulic push rod 6 is used to push the pressure roller 7 downward. The built-in pressure sensor measures the pressure when the concrete slab is broken to measure the compressive capacity of the concrete slab. When testing the bending resistance of the concrete slab, the hydraulic push rod 6 is moved to the position between the two rotating rollers 2, and then pressure is applied to the top of the concrete slab through the hydraulic push rod 6. When the concrete slab bends and breaks, the pressure data of the built-in pressure sensor of the hydraulic push rod 6 is recorded to obtain the bending resistance pressure of the concrete slab, so that the device can detect the compressive capacity and bending resistance of the concrete slab, which effectively improves the practicability of the device. In addition, by setting the movable hydraulic push rod 6, the detection point of the concrete slab can be quickly changed, thereby achieving the effect of improving the accuracy of the detection.

[0025] In a further preferred embodiment of the present invention, Figure 1-3 As shown, the pressure roller 7 includes a U-shaped frame 71, and the U-shaped frame 71 is fixedly connected to the bottom end of the hydraulic push rod 6. A pressure shaft roller 72 is rotatably installed at the bottom end of the U-shaped frame 71, and linkage gears 73 are fixedly installed at both ends of the pressure shaft roller 72.

[0026] In this embodiment, the U-shaped frame 71 is provided to fix the pressure shaft roller 72 to the bottom end of the hydraulic push rod 6 .

[0027] In a further preferred embodiment of the present invention, Figure 1-3 As shown, the cleaning mechanism 8 includes a connecting rod 81, the outer wall of which is wound with a spiral metal rod 82, the connecting rod 81 is rotatably connected to the inner side of the U-shaped frame 71, and both ends of the connecting rod 81 are provided with driven gears 83 meshing with the linkage gear 73.

[0028] In this embodiment, the connecting rod 81 is connected to the pressure shaft roller 72 through the setting of the driven gear 83 and the linkage gear 73. When the pressure shaft roller 72 rotates, the connecting rod 81 can be rotated, thereby pushing the spiral metal rod 82 to rub on the surface of the pressure shaft roller 72, thereby removing the gravel on the surface of the pressure shaft roller 72 to prevent the gravel from affecting the pressure data.

[0029] In a further preferred embodiment of the present invention, Figure 1-3 As shown, one side of the two gantries 4 is commonly fixedly connected with a mounting plate 41, the upper end of the mounting plate 41 is provided with a sliding groove 42, the interior of the sliding groove 42 is slidably connected with an extension plate 43, and the top of the extension plate 43 is provided with a linkage tooth plate 44 meshing with the linkage gear 73.

[0030] In this embodiment, the installation plate 41 and the sliding groove 42 are arranged to install the extension plate 43, and the bottom end of the extension plate 43 is provided with a sliding piston sealed with the sliding groove 42, so that a closed cavity is formed at the inner bottom end of the sliding groove 42, and then the extension plate 43 is pushed upward by the internal air pressure of the cavity, so that the linkage tooth plate 44 is always in contact with the linkage gear 73, and in the process of the movement of the hydraulic push rod 6, the purpose of rotating the pressure shaft roller 72 is achieved, and then the connecting rod 81 and the spiral metal rod 82 are cooperated to remove the gravel on the surface of the pressure shaft roller 72.

[0031] In a further preferred embodiment of the present invention, Figure 1-3 As shown, the sliding plate 3 includes a connecting plate 31, a positioning groove 32 is provided at the upper end of the connecting plate 31 at a position corresponding to the rotating roller 2, a limiting plate 33 is provided at one end of the connecting plate 31, and the end of the rotating roller 2 close to the limiting plate 33 is arc-shaped.

[0032] In this embodiment, the connecting plate 31 is mounted on the top of the two rotating rollers 2 by setting the positioning grooves 32, and the top surface height of the upper end of the connecting plate 31 is lower than the top height of the rotating roller 2. When in use, the connecting plate 31 is pulled outward, and then the concrete slab is placed on the top of the connecting plate 31. When the concrete slab is pushed to move, the concrete slab is transferred to the top of the rotating roller 2 by setting the inclined surface at one end of the rotating roller 2, and then the bottom of the concrete slab is suspended, so as to facilitate the testing of the bending resistance of the concrete slab.

[0033] In a further preferred embodiment of the present invention, Figure 1-3 As shown, a threaded push rod 45 is commonly connected to the middle parts of the two gantries 4, and a threaded hole 46 is opened at a position of the hydraulic push rod 6 corresponding to the threaded push rod 45, and the threaded push rod 45 is threadedly matched with the threaded hole 46.

[0034] In this embodiment, the purpose of controlling the movement of the hydraulic push rod 6 is achieved by the cooperation between the threaded push rod 45 and the threaded hole 46 , and a servo motor is provided at one end of the threaded push rod 45 for driving the threaded push rod 45 to move.

[0035] The embodiments of this specific implementation method are all preferred embodiments of the utility model, and are not intended to limit the protection scope of the utility model. Therefore, all equivalent changes made based on the structure, shape, and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A concrete slab pressure test device, comprising a support platform (1), characterized in that: Rotating rollers (2) are arranged on both sides of the upper end of the support platform (1), and a sliding plate (3) is arranged on the upper ends of the two rotating rollers (2). Gantry frames (4) are arranged at both ends of the support platform (1), and a guide rod (5) is connected to the adjacent sides of the two gantries (4). A hydraulic push rod (6) is arranged on the outer surfaces of the two guide rods (5). A pressure roller (7) is arranged at the bottom end of the hydraulic push rod (6), and a cleaning mechanism (8) is arranged above the pressure roller (7).

2. A concrete slab pressure testing device according to claim 1, characterized in that: The pressure roller (7) comprises a U-shaped frame (71), the U-shaped frame (71) is fixedly connected to the bottom end of the hydraulic push rod (6), a pressure shaft roller (72) is rotatably mounted on the bottom end of the U-shaped frame (71), and linkage gears (73) are fixedly mounted on both ends of the pressure shaft roller (72).

3. A concrete slab pressure testing device according to claim 2, characterized in that: The cleaning mechanism (8) comprises a connecting rod (81), the outer wall surface of which is wound with a spiral metal rod (82), the connecting rod (81) is rotatably connected to the inner side of the U-shaped frame (71), and driven gears (83) meshing with the linkage gear (73) are provided at both ends of the connecting rod (81).

4. A concrete slab pressure testing device according to claim 3, characterized in that: A mounting plate (41) is fixedly connected to one side of the two gantries (4), a sliding groove (42) is provided at the upper end of the mounting plate (41), an extension plate (43) is slidably connected inside the sliding groove (42), and a linkage tooth plate (44) meshing with the linkage gear (73) is provided at the top end of the extension plate (43).

5. A concrete slab pressure testing device according to claim 4, characterized in that: The sliding plate (3) comprises a connecting plate (31), a positioning groove (32) is provided at a position on the upper end of the connecting plate (31) corresponding to the rotating roller (2), a limiting plate (33) is provided at one end of the connecting plate (31), and an end of the rotating roller (2) close to the limiting plate (33) is arranged in an arc shape.

6. A concrete slab pressure testing device according to claim 5, characterized in that: A threaded push rod (45) is commonly connected to the middle of the two gantries (4), and a threaded hole (46) is provided at a position of the hydraulic push rod (6) corresponding to the threaded push rod (45), and the threaded push rod (45) is threadably matched with the threaded hole (46).

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