Drawing experiment device for construction steel bars

Abstract

The utility model relates to the technical field of reinforcing steel bar detection, and discloses a drawing experiment device for building reinforcing steel bars, which comprises a bottom plate, a lifting assembly is arranged at the top of the bottom plate, a square plate is arranged at the top of the lifting assembly, and the outer wall of the square plate is in threaded connection with a screw. At the moment, a round rod can drive a gear ring to rotate on the outer wall of a rotating shaft, so that the gear ring can drive a rack to slide on the inner wall of a shell, when the rack ascends, a Z-shaped plate is driven to move, the Z-shaped plate rotates on the outer wall of a cylinder, an elastic piece is pressed downwards under stress, and the outer wall of the side, close to the rack, of the Z-shaped plate is tilted; the rack can ascend and descend at the moment, when the lifting assembly ascends, the lifting assembly can drive the square plate to ascend and descend the fixing plate at the moment, so that the fixing plate can drive the tester to ascend and descend, at the moment, when an experiment is started, a worker does not need to hold a handle all the time, and manpower is saved.

Description

Technical Field

[0001] This utility model relates to the field of steel bar testing technology, specifically to a device for testing the pull-out of building steel bars. Background Technology

[0002] The rebar pull-out test is an on-site test of the anchoring force of the anchor body. Generally, 48 to 72 hours after the rebar is installed, a pull-out test can be performed on the installed rebar using a tensile tester. The test results can help to detect the quality of the building project.

[0003] Existing testing equipment requires a worker to hold the tester by hand and apply pressure, which is inconvenient, time-consuming, and labor-intensive. It also requires a separate clamp to hold the steel bar, which is quite troublesome. Therefore, we propose a device for testing the pull-out of building steel bars. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a device for testing the pull-out of reinforcing bars in construction, which has the advantages of being able to easily clamp reinforcing bars of different diameters and adapting to reinforcing bars of different heights, thus solving the problems mentioned in the background art.

[0005] This utility model provides the following technical solution: a test device for pulling out reinforcing bars in construction, including a base plate, a lifting assembly on the top of the base plate, a square plate on the top of the lifting assembly, a screw threadedly connected to the outer wall of the square plate, a fixing plate threadedly connected to the outer wall of the screw, a test device fixedly installed on the top of the fixing plate, a handle fixedly installed on the outer wall of the test device, and a clamping assembly on the outer wall of the test device.

[0006] As a preferred technical solution of this utility model: the top of the base plate is fixedly installed with the bottom of the outer shell and the outer wall of the elastic element respectively, and the square plate is connected to the phase by screws.

[0007] As a preferred technical solution of this utility model: the lifting assembly includes a housing, the inner wall of the housing is provided with a rack, the outer wall of the rack is engaged with a toothed ring, the outer wall of the toothed ring is rotatably connected to a rotating shaft, the outer wall of the rotating shaft is fixedly installed with a round rod, the inner wall of the housing is fixedly installed with a partition, the outer wall of the rack is engaged with a zigzag plate, the outer wall of the zigzag plate is rotatably connected with a cylinder, the outer wall of the zigzag plate is fixedly installed with an elastic element, and the inner wall of the housing is provided with a rectangular groove.

[0008] As a preferred technical solution of this utility model: the outer wall of the cylinder is rotatably connected to the inner wall of the shell, the outer wall of the rack is slidably connected to the inner wall of the shell through a rectangular groove, and the top of the rack is fixedly installed to the bottom of the square plate.

[0009] As a preferred technical solution of this utility model: the clamping assembly includes a first annular plate, a threaded rod is fixedly installed on the outer wall of the first annular plate, a clamping plate is rotatably connected to the outer wall of the threaded rod, a threaded ring is threadedly connected to the outer wall of the threaded rod, a second annular plate is provided on the outer wall of the threaded rod, an arc groove is opened on the outer wall of the second annular plate, and a sliding groove is opened on the outer wall of the first annular plate.

[0010] As a preferred technical solution of this utility model: the outer wall of the second annular plate is in contact with the outer wall of the threaded ring, the outer wall of the threaded rod is slidably connected to the inner wall of the arc groove, and the clamping plate is rotatably connected to the inner wall of the second annular plate through the threaded rod.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. This apparatus for testing the pull-out of reinforcing steel bars in construction utilizes a circular rod that is held and rotated. This rod rotates the gear ring on the outer wall of the shaft, causing the gear ring to slide the rack on the inner wall of the outer casing. As the rack rises, the zigzag plate moves, rotating on the outer wall of the cylinder. The elastic element is then pressed down, causing the outer wall of the zigzag plate near the rack to lift, allowing the rack to move up and down. The lifting assembly, during this upward movement, moves the square plate relative to the fixed plate, which in turn moves the experimental apparatus up and down. This eliminates the need for the operator to hold the handle continuously during the experiment, saving manpower.

[0013] 2. This apparatus for testing the pull-out of reinforcing bars in construction utilizes a rotating annular plate. Rotating the second annular plate causes the arc-shaped groove to rotate the threaded rod, which in turn causes the clamping plate to rotate on the outer wall of the first annular plate. This allows several sets of clamping plates to open, enabling the reinforcing bar to pass through the inner walls of the first annular plate, the clamping plate, and the second annular plate. Manually rotating the threaded ring causes it to rotate on the outer wall of the threaded rod, bringing its outer wall into contact with the outer wall of the second annular plate. This allows the clamping assembly to secure reinforcing bars of different diameters, eliminating the need to carry clamps of all diameters during field experiments. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a schematic diagram of the other side of the structure of this utility model;

[0016] Figure 3 This is a schematic cross-sectional view of the present invention.

[0017] Figure 4This is a schematic diagram of the lifting component structure of this utility model;

[0018] Figure 5 This is a schematic diagram of the clamping component structure of this utility model.

[0019] In the diagram: 1. Base plate; 2. Lifting assembly; 3. Square plate; 4. Screws; 5. Fixing plate; 6. Experimental apparatus; 7. Handle; 8. Clamping assembly;

[0020] 201. Outer shell; 202. Rack; 203. Gear ring; 204. Shaft; 205. Round rod; 206. Partition plate; 207. Zigzag plate; 208. Rectangular groove; 209. Cylinder; 210. Elastic element;

[0021] 801. Circular ring plate one; 802. Clamping plate; 803. Threaded rod; 804. Threaded ring; 805. Circular ring plate two; 806. Arc groove; 807. Slide groove. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1 - Figure 5 A test device for pulling out reinforcing bars in construction includes a base plate 1, a lifting assembly 2 on the top of the base plate 1, a square plate 3 on the top of the lifting assembly 2, a screw 4 threadedly connected to the outer wall of the square plate 3, a fixing plate 5 threadedly connected to the outer wall of the screw 4, a test device 6 fixedly installed on the top of the fixing plate 5, a handle 7 fixedly installed on the outer wall of the test device 6, and a clamping assembly 8 on the outer wall of the test device 6.

[0024] In the above structure, a handle 7 is fixedly installed on the outer wall of the experimental device 6. When carrying it out, the handle 7 can be held by hand, so that the handle 7 can move the experimental device 6, making it easy to carry.

[0025] In a preferred embodiment: the top of the base plate 1 is fixedly installed to the bottom of the outer casing 201 and the outer wall of the elastic member 210, respectively, and the square plates 3 are snapped together by screws 4.

[0026] In the above structure, the square plate 3 is connected to the lifting assembly 2 by screws 4. When the lifting assembly 2 is not needed, the inner wall of the fixing plate 5 is rotated so that the screws 4 can be pulled out from the inner wall of the fixing plate 5, and the square plate 3 can be removed from the inner wall of the fixing plate 5. At this time, the fixing plate 5 and the lifting assembly 2 can be separated. When the steel bar is on the ground, the fixing plate 5 can be used alone.

[0027] In a preferred embodiment: the lifting assembly 2 includes a housing 201, the inner wall of the housing 201 is provided with a rack 202, the outer wall of the rack 202 is engaged with a toothed ring 203, the outer wall of the toothed ring 203 is rotatably connected to a rotating shaft 204, the outer wall of the rotating shaft 204 is fixedly installed with a round rod 205, the inner wall of the housing 201 is fixedly installed with a partition 206, the outer wall of the rack 202 is engaged with a zigzag plate 207, the outer wall of the zigzag plate 207 is rotatably connected with a cylinder 209, the outer wall of the zigzag plate 207 is fixedly installed with an elastic element 210, and the inner wall of the housing 201 is provided with a rectangular groove 208.

[0028] In a preferred embodiment: the outer wall of the cylinder 209 is rotatably connected to the inner wall of the outer shell 201, the outer wall of the rack 202 is slidably connected to the inner wall of the outer shell 201 through the rectangular groove 208, and the top of the rack 202 is fixedly installed to the bottom of the square plate 3.

[0029] In the above structure, by holding the round rod 205 and rotating it, the round rod 205 can drive the toothed ring 203 to rotate on the outer wall of the rotating shaft 204, so that the toothed ring 203 can drive the rack 202 to slide on the inner wall of the outer shell 201. When the rack 202 rises, the zigzag plate 207 is driven to move. At this time, the zigzag plate 207 rotates on the outer wall of the cylinder 209. At this time, the elastic element 210 is pressed down by force, and the outer wall of the zigzag plate 207 near the rack 202 is lifted. At this time, the rack 202 can rise and fall. When the rack 202 stops rising and falling, there will be no problem of falling off due to the meshing of the rack 202 and the zigzag plate 207. At this time, the rack 202 can drive the square plate 3 to rise.

[0030] In a preferred embodiment: the clamping assembly 8 includes a first annular plate 801, a threaded rod 803 is fixedly installed on the outer wall of the first annular plate 801, a clamping plate 802 is rotatably connected to the outer wall of the threaded rod 803, a threaded ring 804 is threadedly connected to the outer wall of the threaded rod 803, a second annular plate 805 is provided on the outer wall of the second annular plate 805, an arc groove 806 is opened on the outer wall of the first annular plate 801, and a sliding groove 807 is opened on the outer wall of the first annular plate 801.

[0031] In a preferred embodiment: the outer wall of the second annular plate 805 is in contact with the outer wall of the threaded ring 804, the outer wall of the threaded rod 803 is slidably connected to the inner wall of the arc groove 806, and the clamping plate 802 is rotatably connected to the inner wall of the second annular plate 805 through the threaded rod 803.

[0032] In the above structure, by rotating the second annular plate 805, the second annular plate 805 can drive the arc groove 806 to rotate the threaded rod 803, so that the threaded rod 803 can drive the clamping plate 802 to rotate on the outer wall of the first annular plate 801, so that several sets of clamping plates 802 can be opened. By manually rotating the threaded ring 804, the threaded ring 804 can rotate on the outer wall of the threaded rod 803, so that the outer wall of the threaded ring 804 contacts the outer wall of the second annular plate 805, so that the clamping assembly 8 can fix steel bars of different diameters.

[0033] Working principle: Place the experimental apparatus 6 on the outer wall of the reinforcing bar. Rotate the second annular plate 805, causing the arc-shaped groove 806 to rotate the threaded rod 803. This causes the threaded rod 803 to rotate the clamping plate 802 on the inner wall of the first annular plate 801, allowing the clamping plate 802 to clamp reinforcing bars of different diameters. Once the reinforcing bar is fixed, place your hand on the outer wall of the circular rod 205 and pull it to move the rod 205. 05 can drive the gear ring 203 to rotate on the outer wall of the rotating shaft 204, so that the gear ring 203 can mesh with the rack 202. At this time, the rack 202 can move up and down on the inner wall of the outer shell 201 through the rectangular groove 208. When the rack 202 is rising, the rack 202 can drive the zigzag plate 207 to rotate on the outer wall of the cylinder 209, so that the elastic element 210 is forced to move the zigzag plate 207. At this time, the rack 202 can fix the fixing plate 5.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A test apparatus for pulling out reinforcing bars in construction, comprising a base plate (1), characterized in that: The top of the base plate (1) is provided with a lifting assembly (2), the top of the lifting assembly (2) is provided with a square plate (3), the outer wall of the square plate (3) is threaded with a screw (4), the outer wall of the screw (4) is threaded with a fixing plate (5), the top of the fixing plate (5) is fixedly installed with an experimental device (6), the outer wall of the experimental device (6) is fixedly installed with a handle (7), and the outer wall of the experimental device (6) is provided with a clamping assembly (8).

2. The apparatus for testing the pull-out of reinforcing steel bars in construction according to claim 1, characterized in that: The top of the base plate (1) is fixedly installed to the bottom of the outer shell (201) and the outer wall of the elastic element (210), respectively, and the square plate (3) is snapped into place by screws (4).

3. The apparatus for testing the pull-out of reinforcing steel bars in construction according to claim 1, characterized in that: The lifting assembly (2) includes a housing (201), the inner wall of the housing (201) is provided with a rack (202), the outer wall of the rack (202) is engaged with a toothed ring (203), the outer wall of the toothed ring (203) is rotatably connected to a rotating shaft (204), the outer wall of the rotating shaft (204) is fixedly installed with a round rod (205), the inner wall of the housing (201) is fixedly installed with a partition (206), the outer wall of the rack (202) is engaged with a zigzag plate (207), the outer wall of the zigzag plate (207) is rotatably connected with a cylinder (209), the outer wall of the zigzag plate (207) is fixedly installed with an elastic element (210), and the inner wall of the housing (201) is provided with a rectangular groove (208).

4. The apparatus for testing the pull-out of reinforcing steel bars in construction according to claim 3, characterized in that: The outer wall of the cylinder (209) is rotatably connected to the inner wall of the outer shell (201), the outer wall of the rack (202) is slidably connected to the inner wall of the outer shell (201) through a rectangular groove (208), and the top of the rack (202) is fixedly installed to the bottom of the square plate (3).

5. The apparatus for testing the pull-out of reinforcing steel bars in construction according to claim 1, characterized in that: The clamping assembly (8) includes a first annular plate (801), a threaded rod (803) is fixedly installed on the outer wall of the first annular plate (801), a clamping plate (802) is rotatably connected to the outer wall of the threaded rod (803), a threaded ring (804) is threadedly connected to the outer wall of the threaded rod (803), a second annular plate (805) is provided on the outer wall of the threaded rod (803), an arc groove (806) is opened on the outer wall of the second annular plate (805), and a sliding groove (807) is opened on the outer wall of the first annular plate (801).

6. The apparatus for testing the pull-out of reinforcing steel bars in construction according to claim 5, characterized in that: The outer wall of the second annular plate (805) is in contact with the outer wall of the threaded ring (804), the outer wall of the threaded rod (803) is slidably connected to the inner wall of the arc groove (806), and the clamping plate (802) is rotatably connected to the inner wall of the second annular plate (805) through the threaded rod (803).

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