A detection device for building steel decking

Abstract

The invention discloses a detection device for building steel decking, comprising a hydraulic rod installed on a test bench for providing pressure and a rotating shaft rotatably connected to the test bench, a mounting frame fixedly connected to one end of the rotating shaft away from the test bench, a mounting plate fixedly connected to the mounting frame, a slide cylinder 1 slidably connected to the mounting plate, a receiving plate fixedly connected to the upper end of the slide cylinder 1, a top rod fixedly connected to the lower end of the slide cylinder, a sliding column directly opposite to the top rod, a top block fixedly connected to one end of the sliding column close to the top rod, a paintbrush for drawing lines installed on the top block, a fixed plate fixedly connected to the mounting frame, a support plate fixedly connected to the lower end of the fixed plate, a worm fixedly connected to the support plate, a limit slide seat meshed with the worm fixedly connected to one side of the test bench close to the rotating shaft, and a power mechanism for driving the mounting frame to rotate is arranged on the fixed plate. The invention can detect the pressure-bearing conditions of steel truss floor decking at different angles.

Description

Technical Field

[0001] The invention relates to the technical field of steel bar truss floor deck detection, in particular to a detection device for building steel decks. Background Art

[0002] The truss made of steel bars as the upper chord, lower chord and web members connected by resistance spot welding is called a steel truss. The combined load-bearing plate formed by the steel truss and the bottom plate connected by resistance spot welding is called a steel truss floor deck. When it is used, it is mainly used to bear the load of concrete during concrete pouring. When the concrete solidifies, the bottom plate and the steel truss are disassembled, so that the steel truss remains in the concrete, which is more efficient than the traditional reinforced concrete pouring technology.

[0003] At present, there is no special tester for steel truss floor decking in the market. Most tests are carried out with hydraulic pressure testers, but this instrument can only test the steel truss floor decking in the horizontal direction to test the pressure it can withstand in the horizontal direction. It cannot test the strength of the steel truss floor decking at an inclined angle. However, in the construction of a building, the stairs in the safety passage are an indispensable part, but the angle of the stairs is often built on the building at an inclined angle. The existing testing methods cannot accurately detect the actual strength of the steel truss floor decking used for the staircase construction part, and incorrect data can easily lead to safety accidents. Summary of the invention

[0004] The purpose of the present invention is to provide a detection device for building steel decking, which has the advantage of being able to detect the pressure-bearing conditions of steel truss floor decking at different angles and solves the problems in the background technology.

[0005] The cam is secured to the bottom of the support frame, and the cam is secured on a platform with a plurality of independently controlled cams, each of which has a plurality of independently controlled cams, each of which has a plurality of independently controlled cams.

[0006] Preferably, the power mechanism comprises a motor fixedly mounted on a fixing plate, and bevel gears are provided on an output shaft of the motor at one end close to the supporting plate and on an end of the worm gear close to the motor, and the two bevel gears mesh with each other.

[0007] Preferably, the mounting frame is also provided with a knocking device for providing a low-frequency amplitude to the mounting frame, the knocking device includes a lever fixedly connected to the output shaft at the upper end of the motor, a shock-generating structure is provided on the side of the mounting frame close to the motor, the shock-generating structure includes an elastic rod fixedly connected to the mounting frame, a tension spring is fixedly connected between the elastic rod and the mounting frame, a lever is fixedly connected to a side surface of the elastic rod close to the mounting frame, a collision rod is fixedly connected to a side surface of the elastic rod close to the mounting frame, and the lever can push the elastic rod to move in a direction away from the mounting frame.

[0008] Preferably, a connecting rod is fixedly connected to the lower surface of the mounting plate, a slide cylinder 2 is fixedly connected to the lower end of the connecting rod, a spring 2 for resetting the slide column is arranged inside the slide cylinder 2, the slide column is slidably connected inside the slide cylinder 2, and a fastening bolt for fixing the paintbrush is threadedly connected to the top block.

[0009] Preferably, a limit block for limiting the slide cylinder 1 is fixedly connected to the arc-shaped contour of one end of the slide cylinder close to the top block, and a section of the outer wall of the slide cylinder 1 located between the receiving plate and the mounting plate is sleeved with a spring 1 for resetting the receiving plate.

[0010] Preferably, a fixing rod is fixedly connected to the lower surface of the inner wall of the test bench, and a drawing board is fixedly connected to the upper end of the fixing rod. The drawing board is an arc-shaped board and the center of the arc is consistent with the axis of the rotating shaft.

[0011] Preferably, a sliding rod is fixedly connected to a side surface of the mounting frame close to the test bench, a sliding plate is fixedly connected to the end of the sliding rod away from the mounting frame, a roller is rotatably connected to the sliding plate, a sliding groove for limiting the sliding connection of the sliding plate is provided on the limiting sliding seat, the limiting sliding seat is arc-shaped and the center of the arc is consistent with the axis of the rotating shaft, and the angle formed by the two ends of the limiting sliding seat to the axis of the rotating shaft is between twenty degrees and forty-five degrees.

[0012] Preferably, a plurality of openings are provided on the mounting frame, and a feed port is provided on the mounting frame.

[0013] Preferably, the lower end of the hydraulic rod is fixedly connected to a connecting head, the lower end of the connecting head is rotatably connected to a fixing block, and the lower end of the fixing block is fixedly connected to a pressing plate.

[0014] Preferably, the motor is a dual-axis motor.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The motor can drive the worm to rotate, so that the rotation of the worm will cause the mounting frame to rotate on the test bench through the rotating shaft, and then the top rod pushes the top block to slide to drive the drawing pen to draw lines on the paper on the drawing board, so as to realize the pressure-bearing detection of the steel truss floor deck at different angles, and obtain the real pressure-bearing capacity data of the steel truss floor deck when it is actually used, and the detection data can be collected for easy observation.

[0017] 2. In addition, the vibration function can be applied while the angle adjustment test is being performed, so as to detect the situation of the steel truss floor deck under gravity load and its own limit strength value in the face of harsh environment, so that the steel truss floor deck can be better applied in actual use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure;

[0019] Figure 2 It is a structural schematic diagram of the right side perspective of the overall structure;

[0020] Figure 3 It is a schematic diagram of the overall structure after the overall structure is laid down horizontally;

[0021] Figure 4 It is a structural diagram of the mounting plate portion after the overall structure is laid down horizontally;

[0022] Figure 5 It is a structural schematic diagram of the worm part;

[0023] Figure 6 It is a schematic diagram of the structure of the limit slide;

[0024] Figure 7 It is a schematic diagram of the structure inside the slide;

[0025] Figure 8 This is a schematic diagram of the structure of the drawing board.

[0026] In the figure: 01, test bench; 02, hydraulic rod; 03, connector; 04, fixed block; 05, pressure plate; 06, limit slide; 07, slide groove; 08, mounting frame; 09, feed port; 10, opening; 11, mounting plate; 12, connecting rod; 13, receiving plate; 14, rotating shaft; 15, fastening bolt; 16, spring 2; 17, drawing board; 18, fixing rod; 19, spring 1; 20, slide cylinder 1; 21, limit block; 22, push rod; 23, push block; 24, painting brush; 25, slide column; 26, slide cylinder 2; 27, motor; 28, lever; 29, elastic rod; 30, tension spring; 31, impact rod; 32, fixed plate; 33, bevel gear; 34, roller; 35, support plate; 36, worm; 37, slide rod; 38, slide plate. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] See also Figures 1 to 4 A detection device for building steel decking, comprising a hydraulic rod 02 installed on a test bench 01 for providing pressure and a rotating shaft 14 rotatably connected to the test bench 01, wherein the end of the rotating shaft 14 away from the test bench 01 is fixedly connected to a mounting frame 08, a mounting plate 11 is fixedly connected to the mounting frame 08, a slide 20 is slidably connected to the mounting plate 11, the upper end of the slide 20 is fixedly connected to a receiving plate 13, and further comprising a push rod 22 fixedly connected to the lower end of the slide 20, and further comprising a push rod 22 connected to the push rod The sliding column 25 is opposite to 22, and the end of the sliding column 25 close to the top rod 22 is fixedly connected to the top block 23, and a brush 24 for drawing lines is installed on the top block 23. The mounting frame 08 is fixedly connected to a fixing plate 32, and the lower end of the fixing plate 32 is fixedly connected to a supporting plate 35, and a worm 36 is fixedly connected to the supporting plate 35. A limiting slide 06 meshing with the worm 36 is fixedly connected to one side of the test bench 01 close to the rotating shaft 14, and a power mechanism for driving the mounting frame 08 to rotate is arranged on the fixing plate 32.

[0029] In this embodiment, when the steel truss floor deck is used, it needs to have a relatively high strength value to bear the poured concrete and make the whole body level with the foundation after solidification. When the pressure provided by the hydraulic rod 02 is small, the steel truss floor deck cannot be bent, so it is impossible to obtain experimental data. Therefore, when testing, the force provided by the hydraulic rod 02 can cause the steel truss floor deck to deform slightly. When the angle test is performed, as the angle of the steel truss floor deck changes, the pressure of the hydraulic rod 02 on it causes the steel truss floor deck to deform slightly, so that it can be detected. However, it cannot overcome the force when it starts to deform itself, and as the angle changes, it will not deform itself.

[0030] In addition, the installation position of the hydraulic rod 02 needs to be directly opposite to the center of the mounting frame 08. In the actual installation process of the steel truss floor deck, both ends are placed on the construction layer, the middle position will be suspended, and then multiple steel truss floor decks are seamlessly spliced ​​to achieve the bearing of concrete. Since the two ends of the steel truss floor deck are supported, its most vulnerable position is the unsupported place in the middle. Therefore, when testing, only the weakest place needs to be tested to obtain better data.

[0031] See also Figure 5 Preferably, the power mechanism includes a motor 27 fixedly mounted on a fixing plate 32, and a bevel gear 33 is provided on the output shaft of the motor 27 near the support plate 35 and the end of the worm 36 near the motor 27, and the two bevel gears 33 are meshed with each other. The motor can drive the worm 36 to rotate, so as to realize the function of adjusting the angle of the mounting frame 08.

[0032] See also Figure 5 Preferably, the mounting frame 08 is also provided with a knocking device for providing a low-frequency amplitude to the mounting frame 08, the knocking device includes a lever 28 fixedly connected to the output shaft at the upper end of the motor 27, and a shock-generating structure is provided on the side of the mounting frame 08 close to the motor 27, the shock-generating structure includes an elastic rod 29 fixedly connected to the mounting frame 08, a tension spring 30 is fixedly connected between the elastic rod 29 and the mounting frame 08, a lever 28 is fixedly connected to a side surface of the elastic rod 29 close to the mounting frame 08, and a collision rod 31 is fixedly connected to a side surface of the elastic rod 29 close to the mounting frame 08, and the lever 28 can push the elastic rod 29 to move in a direction away from the mounting frame 08.

[0033] While the motor 27 drives the worm 36 to rotate to adjust the angle of the mounting frame 08, the output shaft at the upper end of the motor 27 also drives the lever 28 to rotate. The lever 28 rotates between the elastic rod 29 and the mounting frame 08, so that the lever 28 pulls the end of the elastic rod 29 away from the mounting frame 08 to tilt in the direction away from the mounting frame 08, and the tension spring 30 is stretched. When the lever 28 is separated from the elastic rod 29, the elastic rod 29 drives the striker 31 to strike the mounting frame 08 under the action of the tension spring 30, and the striker 31 will continue to strike as the motor 27 works. This realizes the function of providing low-frequency amplitude to the mounting frame 08.

[0034] See also Figure 7 Preferably, the lower surface of the mounting plate 11 is fixedly connected with a connecting rod 12, and the lower end of the connecting rod 12 is fixedly connected with a slide cylinder 26, and a spring 16 for resetting the slide column 25 is arranged in the slide cylinder 26, and the slide column 25 is slidably connected in the slide cylinder 26, and a fastening bolt 15 for fixing the brush 24 is threadedly connected on the top block 23. The brush 24 is inserted into the top block 23 and then fixed by the fastening bolt 15, which is convenient for replacing the brush 24 and adjusting the position of the brush 24 from the drawing board 17, so as to facilitate the line drawing action. The spring 16 can make the top block 23 always against the lower end of the top rod 22, so as to ensure the real-time data of the deformation of the steel truss floor deck after the angle adjustment under the pressure.

[0035] See also Figure 3 and Figure 4Preferably, a limit block 21 for limiting the position of the slide 20 is fixedly connected to the arc profile of one end of the slide 20 close to the top block 23, and a spring 19 for resetting the receiving plate 13 is sleeved on a section of the outer wall of the slide 20 located between the receiving plate 13 and the mounting plate 11. The spring 19 can make the receiving plate 13 always attached to the steel truss floor deck, so as to facilitate the testing of real-time data.

[0036] See also Figure 1 and Figure 2 Preferably, a fixing rod 18 is fixedly connected to the lower surface of the inner wall of the test bench 01, and a drawing board 17 is fixedly connected to the upper end of the fixing rod 18. The drawing board 17 is an arc-shaped board, and the center of the arc is consistent with the axis of the rotating shaft 14. It is ensured that the paintbrush 24 will not leave the drawing board 17 when drawing lines.

[0037] See also Figures 1 to 3 Preferably, a slide rod 37 is fixedly connected to one side of the mounting frame 08 close to the test bench 01, and a slide plate 38 is fixedly connected to one end of the slide rod 37 away from the mounting frame 08, and a roller 34 is rotatably connected to the slide plate 38. The limiting slide 06 is provided with a slide groove 07 for limiting the sliding connection of the slide plate 38. The limiting slide 06 is in an arc shape, and the center of the arc is consistent with the axis of the rotating shaft 14. The angle formed by the two ends of the limiting slide 06 to the axis of the rotating shaft 14 is between 20 degrees and 45 degrees. Since the actual angle of the stairs is between 20 degrees and 45 degrees, the detected angle should not exceed the actual angle range of the stairs.

[0038] See also Figure 1 Preferably, a plurality of openings 10 are provided on the mounting frame 08, and a feed port 09 is provided on the mounting frame 08. It is convenient to fix the steel truss floor deck on the mounting frame 08. It can be fixed by bolts and latches.

[0039] See also Figure 1 Preferably, the lower end of the hydraulic rod 02 is fixedly connected to a connector 03, the lower end of the connector 03 is fixedly connected to a fixed block 04, and the lower end of the fixed block 04 is fixedly connected to a pressure plate 05. The pressure of the hydraulic rod 02 can always act on the steel truss floor deck, and can rotate with the rotation of the steel truss floor deck.

[0040] See also Figure 5 Preferably, the motor 27 is a dual-axis motor. The motor 27 should also be a reduction motor. The motor 27 can be used to achieve a constant frequency of the striker 31 when the number of turns of the fixed worm 36 is rotated, thereby ensuring high-precision accuracy. In addition, the use cost can also be reduced.

[0041] Working principle: Place the device vertically on the ground, with the hydraulic rod 02 pointing vertically downward, insert the steel truss floor deck from the feed port 09 of the mounting frame 08, and then insert the bolts or pins into the opening 10 of the mounting frame 08, so as to fix the steel truss floor deck on the mounting frame 08. Then fix a piece of paper on the side of the drawing board 17 close to the brush 24, which can be fixed by staples. In the initial state, the spring 19 will push the receiving plate 13 to push the slide 20 until the limit block 21 is against the mounting plate 11. The spring 2 16 will push the slide column 25 so that the top block 23 is against the lower end of the top rod 22.

[0042] When starting to work, the hydraulic rod 02 begins to push the pressure plate 05 downward through its piston rod, and the pressure plate 05 will rest on the steel truss floor decking plate. The hydraulic rod 02 will squeeze the middle position of the steel truss floor decking plate to make it bend, and the bent part of the steel truss floor decking plate will push the receiving plate 13 to slide downward on the mounting plate 11 through the slide cylinder 20. The spring 19 is compressed, and the slide cylinder 20 will push the push rod 22 to push the push block 23, so that the push block 23 will drive the painting brush 24 to move, so that the painting brush 24 will slide a trajectory on the drawing board 17, so that the sliding trajectory can be compared with the contrast line of the paper on the drawing board 17, so as to judge its displacement compared with the initial state.

[0043] The pressure value of the hydraulic rod 02 is continuously adjusted to increase until the steel truss floor deck begins to bend. At this time, the pressure of the hydraulic rod 02 is stopped from increasing to keep the pressure constant. At this time, the motor 27 starts to work, and the motor 27 drives the worm 36 to rotate through the bevel gear 33 on its output shaft. Since the worm 36 is meshed with the limit slide 06, and the limit slide 06 is fixedly connected to the test bench 01, the rotation of the worm 36 will make it move along the trajectory of the limit slide 06 to push the fixed plate 32 to move, and the movement of the fixed plate 32 will push the mounting frame 08 to move. Since the mounting frame 08 is connected to the test bench 01 through the rotating shaft 14 and is connected to the limit slide 06 through the sliding plate 38, the rotation of the worm 36 will rotate with the rotating shaft 14 of the mounting frame 08 as the axis. As the mounting frame 08 rotates, the mounting frame 08 will drive the slide 1 20 through the mounting plate 11 to drive the top rod 22 to rotate at the same time, and the mounting plate 11 will drive the slide 2 26 to rotate at the same time through the connecting rod 12. Thus, the top block 23 will always be opposite to the top rod 22. As the mounting frame 08 rotates, the mounting frame 08 will drive the steel truss floor deck to rotate at the same time. Since the pressure of the hydraulic rod 02 is constant, when the angle of the steel truss floor deck changes, if it undergoes further deformation or restores a certain deformation, the top block 23 will move synchronously under the action of spring 19 and spring 2 16, so that the top block 23 will drive the drawing pen 24 to slide out a wavy line with one end of the same arc as the drawing board 17 on the paper of the drawing board 17. By judging the trend of the wavy line, it can be judged that under a fixed pressure value, as the angle continues to deflect, the real-time data of the strength value of the steel truss floor deck can be obtained.

[0044] Compared with traditional devices, this device can not only detect when the steel truss floor deck is horizontal, but also detect the strength value of the steel truss floor deck at different angles. It can better judge the quality effect of the steel truss floor deck when it is actually used.

[0045] While the motor 27 drives the worm 36 to rotate to adjust the angle of the mounting frame 08, the output shaft at the upper end of the motor 27 also drives the lever 28 to rotate. The lever 28 rotates between the elastic rod 29 and the mounting frame 08, so that the lever 28 pulls the end of the elastic rod 29 away from the mounting frame 08 to tilt in the direction away from the mounting frame 08, and the tension spring 30 is stretched. When the lever 28 is separated from the elastic rod 29, the elastic rod 29 drives the striker 31 to strike the mounting frame 08 under the action of the tension spring 30, and the striker 31 will continue to strike as the motor 27 works. This realizes the function of providing low-frequency amplitude to the mounting frame 08.

[0046] Compared with the existing devices, by knocking on the mounting frame 08, it can simulate the violent vibration of the entire building when an earthquake occurs, which will cause the internal parts to vibrate synchronously at a low frequency. And the whole process is carried out under the pressure of the hydraulic rod 02, so that its gravity load can be detected, and its own limit strength value in the face of harsh environments. This allows the steel truss floor deck to be better applied in actual use.

[0047] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A detection device for a building steel deck, comprising a hydraulic rod (02) mounted on a test bench (01) for providing pressure and a rotating shaft (14) rotatably connected to the test bench (01), characterized in that: The end of the rotating shaft (14) away from the test bench (01) is fixedly connected to a mounting frame (08), the mounting frame (08) is fixedly connected to a mounting plate (11), the mounting plate (11) is slidably connected to a slide cylinder (20), the upper end of the slide cylinder (20) is fixedly connected to a receiving plate (13), and also includes a push rod (22) fixedly connected to the lower end of the slide cylinder (20), and also includes a slide column (25) directly opposite to the push rod (22), and the end of the slide column (25) close to the push rod (22) is fixedly connected to the push rod (22). A block (23) is provided on the top block (23) with a paintbrush (24) for drawing lines, a fixing plate (32) is fixedly connected to the mounting frame (08), a support plate (35) is fixedly connected to the lower end of the fixing plate (32), a worm (36) is fixedly connected to the support plate (35), a limiting slide (06) meshing with the worm (36) is fixedly connected to one side of the test bench (01) close to the rotating shaft (14), and a power mechanism for driving the mounting frame (08) to rotate is provided on the fixing plate (32).

2. A detection device for building steel decking according to claim 1, characterized in that: The power mechanism comprises a motor (27) fixedly mounted on a fixing plate (32), and a bevel gear (33) is provided on an output shaft of the motor (27) at one end close to the support plate (35) and on an end of the worm (36) close to the motor (27), and the two bevel gears (33) are meshed with each other.

3. A detection device for building steel decking according to claim 1, characterized in that: The mounting frame (08) is also provided with a knocking device for providing a low-frequency amplitude to the mounting frame (08), the knocking device comprising a lever (28) fixedly connected to the output shaft at the upper end of the motor (27), a vibration-generating structure being provided on a side of the mounting frame (08) close to the motor (27), the vibration-generating structure comprising an elastic rod (29) fixedly connected to the mounting frame (08), a tension spring (30) being fixedly connected between the elastic rod (29) and the mounting frame (08), a lever (28) being fixedly connected to a side surface of the elastic rod (29) close to the mounting frame (08), a striker rod (31) being fixedly connected to a side surface of the elastic rod (29) close to the mounting frame (08), and the lever (28) being capable of pushing the elastic rod (29) to move in a direction away from the mounting frame (08).

4. A detection device for building steel decking according to claim 1, characterized in that: A connecting rod (12) is fixedly connected to the lower surface of the mounting plate (11), a second slide cylinder (26) is fixedly connected to the lower end of the connecting rod (12), a second spring (16) for resetting the slide column (25) is arranged in the second slide cylinder (26), the slide column (25) is slidably connected in the second slide cylinder (26), and a fastening bolt (15) for fixing the paintbrush (24) is threadedly connected to the top block (23).

5. A detection device for building steel decking according to claim 1, characterized in that: A limit block (21) for limiting the position of the slide cylinder (20) is fixedly connected to the arc-shaped contour of one end of the slide cylinder (20) close to the top block (23), and a spring (19) for resetting the receiving plate (13) is sleeved on a section of the outer wall of the slide cylinder (20) located between the receiving plate (13) and the mounting plate (11).

6. A detection device for building steel decking according to claim 1, characterized in that: A fixing rod (18) is fixedly connected to the lower surface of the inner wall of the test bench (01), and a drawing board (17) is fixedly connected to the upper end of the fixing rod (18). The drawing board (17) is an arc-shaped board, and the center of the arc is consistent with the axis of the rotating shaft (14).

7. A detection device for building steel decking according to claim 1, characterized in that: A sliding rod (37) is fixedly connected to a side surface of the mounting frame (08) close to the test bench (01), and a sliding plate (38) is fixedly connected to the end of the sliding rod (37) away from the mounting frame (08). A roller (34) is rotatably connected to the sliding plate (38). A sliding groove (07) for limiting the sliding connection of the sliding plate (38) is provided on the limiting sliding seat (06). The limiting sliding seat (06) is in the shape of an arc and the center of the arc is consistent with the axis of the rotating shaft (14). The angle formed by the two ends of the limiting sliding seat (06) to the axis of the rotating shaft (14) is between twenty degrees and forty-five degrees.

8. A detection device for building steel decking according to claim 1, characterized in that: The mounting frame (08) is provided with a plurality of openings (10), and the mounting frame (08) is provided with a feed port (09).

9. A detection device for building steel decking according to claim 1, characterized in that: The lower end of the hydraulic rod (02) is fixedly connected to a connecting head (03), the lower end of the connecting head (03) is rotatably connected to a fixing block (04), and the lower end of the fixing block (04) is fixedly connected to a pressing plate (05).

10. A detection device for building steel decking according to claim 2, characterized in that: The motor (27) is a dual-shaft motor.

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