Performance testing device for bridge pier column

Abstract

The utility model discloses a performance testing device for a bridge pier column, and relates to the technical field of bridge construction, the performance testing device comprises two detection frames, the detection frames are square, the inner sides of the detection frames are provided with open grooves, the interiors of the open grooves are rotatably connected with rotating shafts I, and the rotating shafts I are symmetrically provided with two groups of inclined grooves I; a first sliding block is slidably arranged in each first inclined groove, a second sliding block is fixedly connected to the side, away from the first rotating shaft, of each first sliding block, a first sliding rod is fixedly installed in the detection frame, the second sliding blocks are slidably connected with the first sliding rod, and a transverse rod is fixedly connected to the side, away from the first sliding block, of each second sliding block. Through the arrangement of the storage groove and the telescopic rod, after the detection frame is fixed to the bridge pier column, the detection frame can be pulled to slide relative to the telescopic rod, that is, the detection frame can deviate from the middle of the bridge pier column after the connection rod and the connection base are installed, position adjustment in the horizontal direction is achieved, and data of different positions can be measured conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge construction, in particular to a performance testing device for a bridge pier. Background Art

[0002] Concrete is the main material of piers, and its strength is directly related to the bearing capacity of piers. Commonly used testing methods include rebound method, ultrasonic-rebound combined method and core drilling method. The rebound method uses a rebound hammer to measure the rebound value of the concrete surface to estimate the concrete strength. It is easy to operate but has relatively low accuracy. The ultrasonic-rebound combined method combines the propagation speed of ultrasonic waves in concrete and the rebound value to evaluate the strength, and its accuracy is improved.

[0003] When the ultrasonic-rebound comprehensive method is used in the prior art, it is necessary to draw sub-measurement lines at the selected inspection position on the bridge pier to demarcate different sub-measurement areas. Due to the large volume of the bridge pier, it is difficult to fully obtain the complete data of the bridge pier in one inspection, or the drawing position is a steel bar dense area or an embedded parts area, which affects the normal operation of the ultrasonic instrument and the rebound instrument, so it is necessary to continue to draw sub-measurement areas at different positions to assist in measurement, affecting the inspection efficiency. In this process, if the first line drawing is disturbed by the steel bar dense area or the embedded parts area, so that the position needs to be changed to draw the sub-measurement line again, the area to be inspected selected by the second line drawing may not be able to completely avoid the sub-measurement line drawn for the first time, and the original sub-measurement line may interfere with the judgment of the staff, which may easily cause the staff to put the ultrasonic instrument or the rebound instrument in the wrong position, affecting the efficiency of the inspection work, and may even cause deviations in the specific values ​​detected by the ultrasonic-rebound comprehensive method.

[0004] In order to solve the above problems, a performance testing device for bridge piers is proposed. Summary of the invention

[0005] In order to solve the above technical problems, a performance testing device for a bridge pier is provided.

[0006] In order to achieve the above objectives, the present invention can be implemented by adopting the following technical solutions:

[0007] The utility model provides a performance testing device for bridge piers, comprising: two detection frames, the detection frames are arranged in a mouth shape, the inner side of the detection frames is provided with a slot, the inner side of the slot is rotatably connected with a rotating shaft 1, two groups of inclined slots 1 are symmetrically provided on the rotating shaft 1, a slider 1 is slidably arranged in each inclined slot 1, a slider 2 is fixedly connected to a side of each slider 1 away from the rotating shaft 1, a slide bar 1 is fixedly installed inside the detection frame, the slider 2 is slidably connected to the slide bar 1, a side of each slider 2 away from the slider 1 is fixedly connected with a cross bar, one end of the cross bar away from the slider 2 is slidably connected to the detection frame, and the inner top of the detection frame is rotatable. A rotating shaft 2 is connected, and two groups of inclined grooves 2 are symmetrically opened on the rotating shaft 2. A slider 3 is slidably connected in each inclined groove 2, and a slider 4 is fixedly connected to the side of each slider 3 away from the rotating shaft 2. A slide bar 2 is fixedly arranged on the inner side of the detection frame, and the slider 4 is slidably connected to the slide bar 2. A vertical rod is fixedly connected to the side of each slider 4 away from the slider 3, and the end of the vertical rod away from the slider 4 is slidably connected to the detection frame. An active bevel gear is fixedly connected to the top of the rotating shaft 1, and a driven bevel gear is fixedly connected to the end of the rotating shaft 2 close to the rotating shaft 1, and the active bevel gear is meshed with the driven bevel gear. An installation component is arranged between the two detection frames.

[0008] Preferably, the mounting assembly includes a fixing rod, two fixing rods are fixedly connected to the detection frame, the two fixing rods are symmetrically arranged on the upper and lower sides of the detection frame, a storage groove is opened inside the fixing rod, two telescopic rods are slidably connected inside the storage groove, the two telescopic rods are symmetrically arranged in the storage groove, and two springs are arranged between the two telescopic rods, each telescopic rod is sleeved with a connecting seat, each connecting seat is threadedly connected with a fixing bolt two, four connecting rods are arranged between the two detection frames, and each connecting rod is opened with a plurality of positioning holes two.

[0009] Preferably, the detection frame is internally rotatably connected to a worm, an end of the rotating shaft away from the active bevel gear is fixedly connected to a worm wheel, the worm wheel meshes with the worm, and the side of the detection frame is rotatably connected to a knob, which is fixedly connected to the worm.

[0010] Preferably, a plurality of positioning holes 1 are provided on the telescopic rod, four circular grooves are symmetrically provided on the inner side of the fixed rod, a clamp is slidably connected in each of the four circular grooves, a spring 1 is provided between the clamp and the adjacent circular groove, and the positioning hole 1 is a through hole.

[0011] Preferably, each cross bar is slidably provided with rod sleeves 1 having the same number as the vertical bars, the positions of the multiple rod sleeves 1 on the same cross bar are arranged in one-to-one correspondence with the positions of the multiple vertical bars, and the rod sleeves 1 are slidably connected to the adjacent vertical bars.

[0012] Preferably, one side of the fixing rod away from the detection frame is threadedly connected with two fixing bolts 1, and the fixing bolts 1 can be screwed into the receiving groove.

[0013] The advantages of the utility model are:

[0014] Through the setting of the first and second inclined slots, when different grid sizes are required, the worm is rotated by using a knob to spread the plurality of sliders second and the plurality of cross bars in the vertical direction, and the plurality of vertical bars in the horizontal direction, and the cross bars and the vertical bars are spread at the same time, thereby increasing the size of the formed grid to meet the grid size requirements of different test scenarios and improve applicability;

[0015] Through the arrangement of the storage slot and the telescopic rod, when the detection frame is fixed on the bridge pier, the detection frame can be pulled to slide relative to the telescopic rod, that is, after the connecting rod and the connecting seat are installed, the detection frame can be deviated from the middle of the bridge pier to achieve horizontal position adjustment. Compared with the method of drawing a positioning grid on the bridge pier, the detection frame can be moved during the test to facilitate the measurement of data at different positions, and the detection frame can also be actively adjusted to avoid areas with dense steel bars to ensure the detection effect, and there will be no overlapping of grid prints. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional schematic diagram of the overall structure assembly shown in the utility model;

[0017] Figure 2 It is a three-dimensional schematic diagram of the overall structure shown in the utility model;

[0018] Figure 3 It is a three-dimensional schematic diagram of the detection frame, the first rotating shaft and the second rotating shaft shown in the utility model;

[0019] Figure 4 The utility model shown in Figure 3 The enlarged schematic diagram at A in the middle;

[0020] Figure 5 The utility model shown in Figure 3 The enlarged schematic diagram of point B in the middle;

[0021] Figure 6 It is a three-dimensional schematic diagram of the fixed rod and telescopic rod and other components shown in the utility model;

[0022] Figure 7 The utility model shown in Figure 6 Enlarged schematic diagram at point C in the middle.

[0023] Among them, the figure numbers in the utility model are: 1, detection frame; 2, slot; 3, rotating axis 1; 4, inclined slot 1; 5, slider 1; 6, slide bar 1; 7, slider 2; 8, cross bar; 9, rotating axis 2; 10, inclined slot 2; 11, slider 3; 12, slide bar 2; 13, slider 4; 14, vertical bar; 15, active bevel gear; 16, driven bevel gear; 17, rod sleeve 1; 19, worm; 20, worm wheel; 21, fixing rod; 22, storage groove; 23, telescopic rod; 24, positioning hole 1; 25, circular groove; 26, clamp; 27, spring 1; 28, fixing bolt 1; 29, connecting seat; 30, connecting rod; 31, positioning hole 2; 32, fixing bolt 2; 33, spring 2. DETAILED DESCRIPTION

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the utility model in conjunction with the drawings in the embodiments of the utility model. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0025] like Figure 1 to Figure 7 As shown, an embodiment of the utility model is provided, and a performance testing device for a bridge pier is provided and will be described in detail below:

[0026] like Figure 1 to Figure 5As shown, a performance testing device for a bridge pier comprises two detection frames 1. The two detection frames 1 are symmetrically placed on both sides of the bridge pier when in use. The detection frames 1 are arranged in a U-shaped shape. A slot 2 is provided on the inner side of the detection frame 1. A rotating shaft 3 is rotatably connected to the inner side of the slot 2. Two groups of inclined slots 4 are symmetrically provided on the rotating shaft 3. Each group comprises a plurality of inclined slots 4. The upper group of inclined slots 4 is inclined upward, and the inclination angle of each inclined slot 4 increases as the distance away from the center of the rotating shaft 3 increases. The lower group of inclined slots 4 is inclined downward, and the inclination angle of each inclined slot 4 increases as the distance away from the center of the rotating shaft 3 increases. The larger the size, the larger the size. A slider 5 is slidably arranged in each inclined groove 4. A slider 2 7 is fixedly connected to the side of each slider 5 away from the rotating shaft 3. A slide bar 6 is fixedly installed inside the detection frame 1. The slider 27 is slidably connected to the slide bar 6. A cross bar 8 is fixedly connected to the side of each slider 27 away from the slider 5. The end of the cross bar 8 away from the slider 27 is slidably connected to the detection frame 1. The inner top of the detection frame 1 is rotatably connected to the rotating shaft 2 9. Two groups of inclined grooves 2 10 are symmetrically provided on the rotating shaft 2 9. Each group includes a plurality of inclined grooves 2 10, and the inclination angle of each inclined groove 2 10 increases according to the distance away from the center of the rotating shaft 2 9. And it increases (similar to the distribution of two groups of inclined grooves 1 4 here), each inclined groove 2 10 is slidably connected with a slider 3 11, and each slider 3 11 is fixedly connected to a slider 4 13 on the side away from the rotating shaft 2 9, and a slide bar 2 12 is fixedly arranged on the inner side of the detection frame 1, and the slide bar 4 13 is slidably connected to the slide bar 2 12, and each slide bar 4 13 is fixedly connected to a vertical rod 14 on the side away from the slider 3 11, and the end of the vertical rod 14 away from the slider 4 13 is slidably connected to the detection frame 1, and the top of the rotating shaft 3 is fixedly connected with a driving bevel gear 15, and the end of the rotating shaft 2 9 close to the rotating shaft 3 is fixedly connected with a driven bevel gear 16, and the driving bevel gear 15 is meshed with the driven bevel gear 16, and each cross bar 8 is slidably provided with a rod sleeve 17 with the same number as the vertical rod 14. The positions of the multiple rod sleeves 17 on the same cross bar 8 are arranged in a one-to-one correspondence with the positions of the multiple vertical rods 14, and the rod sleeves 17 are slidably connected with the adjacent vertical rods 14. The internal rotation of the detection frame 1 is connected with a worm 19, and the end of the rotating shaft 3 away from the active bevel gear 15 is fixedly connected with a worm wheel 20, and the worm wheel 20 is meshed with the worm 19. The side of the detection frame 1 is rotatably connected with a knob, and the knob is coaxially fixedly connected with the worm 19. An installation component is provided between the two detection frames 1, and the installation component is used to fix the detection frame 1 on the bridge pier.

[0027] Further, such as Figure 2 , Figure 3 , Figure 6 and Figure 7As shown, the mounting assembly includes a fixing rod 21, two fixing rods 21 are fixedly connected to the detection frame 1, and the two fixing rods 21 are symmetrically arranged on the upper and lower sides of the detection frame 1. A receiving groove 22 is provided inside the fixing rod 21, and two telescopic rods 23 are slidably connected inside the receiving groove 22. The two telescopic rods 23 are symmetrically arranged in the receiving groove 22, and a plurality of positioning holes 24 are provided on the telescopic rod 23. Four circular grooves 25 are provided on the inner side of the fixing rod 21, and two circular grooves 25 form a group, and two groups of circular grooves 25 are symmetrically arranged in the fixing rod 21. A clamp 26 is slidably connected in each of the four circular grooves 25, and a spring 27 is provided in each of the four circular grooves 25. The clamp 26 is fixedly connected to the adjacent spring 27. , the positioning hole 24 is a through hole, the clamp head 26 can be slidably inserted into the positioning hole 24, and the side of the fixing rod 21 away from the detection frame 1 is threadedly connected with two fixing bolts 28, and the two fixing bolts 28 are respectively arranged on both sides of the fixing rod 21. The fixing bolts 28 can be screwed into the storage groove 22 and inserted into the positioning hole 24, so as to fix the position of the telescopic rod 23. A connecting seat 29 is sleeved on each telescopic rod 23. Four connecting rods 30 are arranged between the two detection frames 1. The four connecting rods 30 are respectively located at the four corners of the detection frame 1. A plurality of positioning holes 231 are opened on each connecting rod 30, and a fixing bolt 232 is threadedly connected to each connecting seat 29, such as Figure 2 As shown, a connecting rod 30 is connected between two connecting seats 29 which are located on the two detection frames 1 and are arranged in corresponding positions. By passing the fixing bolt 22 through the positioning hole 21 and the positioning hole 1 24, and threading the fixing bolt 22 with the connecting seat 29, the connecting rod 30 can be connected to the telescopic rod 23. The sizes of bridge piers of different specifications have a certain ratio. The distance between the positioning holes 21 is set according to the ratio of the size of the piers. The connecting rod 30 is an elastic rod with a certain elasticity so that the device can be fixed on the bridge pier. A spring 23 is arranged in the receiving groove 22. The two ends of the spring 23 are respectively fixedly connected to the two telescopic rods 23, which are used to pull the connecting rod 30 to clamp the bridge pier.

[0028] In combination with the above embodiments, the entire working process and working principle of the above embodiments are as follows:

[0029] Install the detection frame 1: After placing the two detection frames 1 on both sides of the bridge pier to be inspected, unscrew the fixing bolt 28 to make the telescopic rod 23 lose its fixation, then pull the telescopic rod 23 toward the outside of the fixing rod 21 and stretch the spring 23. When pulling, the telescopic rod 23 pushes the clamp 26 into the circular groove 25 and compresses the spring 27. When the positioning hole 24 is aligned with the clamp 26, the clamp 26 is clamped into the positioning hole 24 again under the extension of the spring 27, thereby achieving the effect of auxiliary positioning and fixing when the telescopic rod 23 extends out of the fixing rod 21. When the telescopic rod 23 is pulled out to the required length, the fixing bolt 23 is passed through the positioning hole 231 and the positioning hole 24, and the fixing bolt 23 is threadedly connected to the connecting seat 29, and then the four connecting rods 30 are connected to the corresponding telescopic rods 23 in turn. After the four connecting rods 30 are connected and fixed, the spring 2 33 pulls the connecting rod 30 to clamp on the bridge pier to fix the detection frame 1 on the bridge pier, which is convenient for the subsequent performance detection of the bridge pier, and the detection frame 1 can be pulled to slide relative to the telescopic rod 23, and the length of the two telescopic rods 23 extending out of the fixed rod 21 is changed to one long and one short, so that the detection frame 1 can be deviated from the middle of the bridge pier after the connecting rod 30 and the connecting seat 29 are installed, so as to achieve horizontal position adjustment. Compared with the method of drawing a positioning grid on the bridge pier, the detection frame 1 can be moved during the test to facilitate the measurement of data at different positions, and the detection frame 1 can also be actively adjusted to avoid the area with dense steel bars to ensure the detection effect, and there will be no grid print overlap.

[0030] Adjust the grid of the ultrasonic-rebound method: After the two detection frames 1 are installed on the bridge pier, the grid composed of the horizontal rod 8 and the vertical rod 14 can be used to assist the external ultrasonic instrument and rebound instrument for precise positioning. When the bridge pier needs to use grid sizes of different sizes according to the standard, use the knob to rotate the worm 19 to make the worm gear 20 drive the rotating shaft 3 to rotate, so that the rotating shaft 3 drives the rotating shaft 2 9 to rotate synchronously through the active bevel gear 15 and the driven bevel gear 16. When the rotating shaft 3 and the rotating shaft 2 9 rotate synchronously, under the action of the inclined groove 4, multiple sliders 15 slide and spread toward the two ends of the rotating shaft 3, and under the action of the inclined groove 2 10, multiple sliders 3 11 slide and spread toward the two ends of the rotating shaft 2 9. At this time, multiple Slider 1 5 drives slider 2 7 to slide toward the two ends of rotation axis 1 3, and under the limiting action of slide bar 1 6 on slider 2 7, multiple sliders 2 7 are spread out in the vertical direction, thereby driving multiple cross bars 8 to spread out. At the same time, multiple sliders 3 11 drive slider 4 13 to slide toward the two ends of rotation axis 2 9, and under the limiting action of slide bar 2 12 on slider 4 13, multiple vertical bars 14 are spread out in the horizontal direction. At this time, the cross bars 8 and the vertical bars 14 are spread out at the same time. As the inclination angles of the inclined slot 1 4 and the inclined slot 2 10 gradually increase, the displacement distance of the cross bars 8 and the vertical bars 14 that are farther away from the center of rotation axis 1 3 and rotation axis 2 9 increases, thereby increasing the size of the formed grid to meet the grid size requirements of different test scenarios and improve applicability.

[0031] The above description is only an embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A performance testing device for a bridge pier, characterized in that: The invention comprises two detection frames (1), wherein the detection frames (1) are arranged in a square shape, a slot (2) is provided on the inner side of the detection frames (1), a rotation axis (3) is rotatably connected to the inner side of the slot (2), two sets of inclined slots (4) are symmetrically provided on the rotation axis (3), a slider (5) is slidably provided in each inclined slot (4), a slider (5) is fixedly connected to a slider (7) on a side of each slider (5) away from the rotation axis (3), a slide bar (6) is fixedly installed inside the detection frames (1), the slider (7) is slidably connected to the slide bar (6), a cross bar (8) is fixedly connected to a side of each slider (7) away from the slider (5), one end of the cross bar (8) away from the slider (7) is slidably connected to the detection frames (1), a rotation axis (9) is rotatably connected to the inner top of the detection frames (1), a rotation axis (9) is symmetrically provided on the rotation axis (9), and a slider (5) is fixedly connected to the inner side of the detection frames (1). Two groups of inclined grooves 2 (10) are provided, each inclined groove 2 (10) is slidably connected to a slider 3 (11), each slider 3 (11) is fixedly connected to a slider 4 (13) on a side away from the rotating shaft 2 (9), a slider 2 (12) is fixedly provided on the inner side of the detection frame (1), the slider 4 (13) is slidably connected to the slider 2 (12), each slider 4 (13) is fixedly connected to a vertical rod (14) on a side away from the slider 3 (11), one end of the vertical rod (14) away from the slider 4 (13) is slidably connected to the detection frame (1), a top end of the rotating shaft 1 (3) is fixedly connected to a driving bevel gear (15), an end of the rotating shaft 2 (9) close to the rotating shaft 1 (3) is fixedly connected to a driven bevel gear (16), the driving bevel gear (15) is meshed with the driven bevel gear (16), and a mounting assembly is provided between the two detection frames (1).

2. A performance testing device for bridge piers according to claim 1, characterized in that: The mounting assembly comprises a fixing rod (21), two fixing rods (21) are fixedly connected to the detection frame (1), the two fixing rods (21) are symmetrically arranged at the upper and lower sides of the detection frame (1), a receiving groove (22) is provided inside the fixing rod (21), two telescopic rods (23) are slidably connected inside the receiving groove (22), the two telescopic rods (23) are symmetrically arranged in the receiving groove (22), a spring (33) is arranged between the two telescopic rods (23), each telescopic rod (23) is sleeved with a connecting seat (29), each connecting seat (29) is threadedly connected with a fixing bolt (32), four connecting rods (30) are arranged between the two detection frames (1), and each connecting rod (30) is provided with a plurality of positioning holes (31).

3. A performance testing device for bridge piers according to claim 2, characterized in that: The detection frame (1) is rotatably connected to a worm (19) inside, and a worm wheel (20) is fixedly connected to one end of the rotating shaft (3) away from the active bevel gear (15), the worm wheel (20) is meshed with the worm (19), and a knob is rotatably connected to the side of the detection frame (1), and the knob is fixedly connected to the worm (19).

4. A performance testing device for bridge piers according to claim 1, characterized in that: The telescopic rod (23) is provided with a plurality of positioning holes (24), the inner side of the fixed rod (21) is symmetrically provided with four circular grooves (25), the four circular grooves (25) are all slidably connected with a clamping head (26), a spring (27) is provided between the clamping head (26) and the adjacent circular groove (25), and the positioning hole (24) is a through hole.

5. The performance testing device for a bridge pier according to claim 2, characterized in that: Each cross bar (8) is slidably provided with rod sleeves (17) the same number as the vertical bars (14); the positions of the plurality of rod sleeves (17) on the same cross bar (8) are arranged in one-to-one correspondence with the positions of the plurality of vertical bars (14); and the rod sleeves (17) are slidably connected to adjacent vertical bars (14).

6. A bridge pier performance testing device according to claim 4, characterized in that The side of the fixing rod (21) away from the detection frame (1) is threadedly connected with two fixing bolts (28), and the fixing bolts (28) can be screwed into the interior of the receiving groove (22).

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