Detection equipment for nondestructive detection of bridge pile foundation

Abstract

The utility model belongs to the field of bridge pile foundation nondestructive testing detection equipment, and particularly relates to bridge pile foundation nondestructive testing detection equipment which comprises a bottom plate. One side of the bottom plate is connected with two groups of spring columns; the tops of the spring columns are connected with a top plate. Two groups of groove plates are fixedly connected to one side of the bottom of the top plate; a first transverse shaft is fixedly connected to the middle of each groove plate; two groups of support plates are fixedly connected to one side of the bottom plate; the middle part of the support plate is rotationally connected with a bidirectional screw rod; one end of the bidirectional screw rod is connected with a servo motor; under the action that the top plate is parallel to the horizontal line under the driving of the servo motor, unnecessary angle deviation caused by the fact that the ultrasonic detector host is easily influenced by a complex bridge pile foundation construction environment and uneven or gradient change of the construction ground can be prevented; therefore, the connection part of the data line and the host machine bears extra stress and distortion, the connection is loosened, the signal transmission is interrupted, and the detection process is influenced.

Description

Technical Field

[0001] The utility model relates to the field of non-destructive testing and detection equipment for bridge pile foundations, and specifically to a detection equipment for non-destructive testing of bridge pile foundations. Background Technique

[0002] Bridge pile foundations are a very important part of bridge engineering. They mainly play the role of transferring the load of the upper structure of the bridge to the soil layer with good bearing performance at a deeper underground depth to meet the settlement requirements of the bearing capacity. Their quality and safety are directly related to the safety and stability of the entire bridge. During the construction process of bridge pile foundations, due to the influence of various factors such as geological conditions, construction technology, and material quality, quality defects such as broken piles, mud inclusion, and segregation may occur. Therefore, ultrasonic detection instruments are generally used for non-destructive testing of pile foundations.

[0003] When using an ultrasonic detector to detect a pile foundation, first, a special data cable needs to be inserted into the main body of the instrument to ensure a firm connection. Subsequently, the detection probe is tightly connected to the end of the data cable to ensure the accuracy of signal transmission. Next, the detection probe is placed into the acoustic detection tube pre-embedded in the pile foundation to ensure that the probe maintains good contact with the inner wall of the acoustic detection tube and is located at an appropriate detection position. Finally, the data collected by the detection probe will be transmitted to the main body display screen through the data cable and presented intuitively in the form of charts or numerical values for technicians to conduct subsequent analysis and interpretation.

[0004] However, the construction environment of bridge pile foundations is relatively complex, and the construction ground often has significant unevenness or obvious slope changes. During pile foundation detection, the main body of the ultrasonic detector is extremely vulnerable to the influence of ground undulations, resulting in unnecessary angular offsets during operation. Angular offsets are likely to cause additional stress and distortion at the connection between the data cable and the main body, and thus are likely to cause serious consequences such as loose connections, signal transmission interruptions, and even data loss. Therefore, a detection equipment for non-destructive testing of bridge pile foundations is proposed to address the above problems. Content of the Utility Model

[0005] In order to make up for the deficiencies of the prior art and solve at least one technical problem proposed in the background technique, the utility model proposes a detection equipment for non-destructive testing of bridge pile foundations.

[0006] The technical solution adopted by the present utility model to solve its technical problems is as follows: A detection device for non-destructive detection of bridge pile foundations according to the present utility model includes a bottom plate; two groups of spring columns are connected to one side of the bottom plate; the tops of the spring columns are all connected to a top plate; two groups of groove plates are fixedly connected to one side of the bottom of the top plate; a first horizontal shaft is fixedly connected to the middle of each of the groove plates; two groups of support plates are fixedly connected to one side of the bottom plate; a bidirectional lead screw is rotatably connected to the middle of the support plates; one end of the bidirectional lead screw is connected to a servo motor; two groups of sliders are threadedly connected to the middle of the bidirectional lead screw; a second horizontal shaft is fixedly connected to the middle of each of the sliders; support rods are movably connected to both sides of the second horizontal shaft; the top ends of the support rods are movably connected to the middle of the first horizontal shaft; limiting rods are fixedly connected to both sides of the support plates.

[0007] Preferably, hollow blocks are fixedly connected to both sides of the top of the top plate; threaded rods are threadedly connected to the middle of each of the hollow blocks; a threaded sleeve is threadedly connected to one end of each of the threaded rods; an extrusion plate is fixedly connected to one end of the threaded sleeve; two groups of limiting plates are fixedly connected to both sides of the top plate.

[0008] Preferably, a rotating shaft is rotatably connected to the middle of each of the sliders; rollers are fixedly connected to both ends of the rotating shaft; a clamping groove is formed in the middle of each of the rollers; two groups of guide rails are fixedly connected to one side of the bottom plate; the clamping grooves are in mutual fit with the guide rails.

[0009] Preferably, two groups of inclined rods are fixedly connected to one side of the bottom plate; hollow discs are fixedly connected to the tops of the inclined rods.

[0010] Preferably, a sliding groove is formed in the middle of the hollow disc; a plurality of balls are rotatably connected to the middle of the sliding groove.

[0011] Preferably, limiting pads are fixedly connected to both ends of the second horizontal shaft.

[0012] Preferably, two groups of arc-shaped side wing plates are fixedly connected to a corner of the top of the bottom plate; the sides of the arc-shaped side wing plates are in mutual fit with the side of the servo motor.

[0013] The beneficial effects of the present utility model are as follows:

[0014] 1. For the detection device for non-destructive detection of bridge pile foundations according to the present utility model, by driving the top plate to be parallel to the horizontal line by the servo motor, it can prevent the situation that due to the complex construction environment of the bridge pile foundation and the uneven or sloping ground of the construction site, the ultrasonic detector main unit is easily affected, resulting in unnecessary angular deviation, and then causing additional stress and distortion at the connection between the data cable and the main unit, leading to loose connection and signal transmission interruption, affecting the detection process.

[0015] 2. The detection device for non-destructive testing of bridge pile foundations according to the present utility model can prevent the ultrasonic detector from slipping off the top plate when the angle of the top plate is changed, which may easily cause damage to the ultrasonic detector due to this impact, thereby affecting its normal use and service life, by clamping and fixing the ultrasonic detector. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0017] Figure 1 It is a three-dimensional structure schematic diagram of the present utility model;

[0018] Figure 2 It is a three-dimensional sectional structure schematic diagram of the present utility model;

[0019] Figure 3 It is a sectional structure schematic diagram of the groove plate of the present utility model;

[0020] Figure 4 It is a sectional structure schematic diagram of the bidirectional lead screw of the present utility model;

[0021] Figure 5 It is a sectional structure schematic diagram of the top plate of the present utility model;

[0022] Figure 6 It is a structure schematic diagram of the hollow disc of the present utility model.

[0023] In the figure: 1, bottom plate; 11, spring column; 12, top plate; 13, groove plate; 14, first horizontal axis; 15, support plate; 16, bidirectional lead screw; 17, servo motor; 18, slider; 19, second horizontal axis; 111, support rod; 112, limiting rod; 2, hollow block; 21, threaded rod; 22, threaded sleeve; 23, pressing plate; 24, limiting plate; 3, rotating shaft; 31, roller; 32, clamping groove; 33, guide rail; 4, inclined rod; 41, hollow disc; 5, sliding groove; 51, ball; 6, limiting pad; 7, arc-shaped side wing plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0025] As Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 shown, a detection device for non-destructive testing of bridge pile foundations includes a bottom plate 1; two groups of spring columns 11 are connected to one side of the bottom plate 1; the tops of the spring columns 11 are all connected to a top plate 12; two groups of groove plates 13 are fixedly connected to one side of the bottom of the top plate 12; a first horizontal shaft 14 is fixedly connected to the middle of each of the groove plates 13; two groups of support plates 15 are fixedly connected to one side of the bottom plate 1; a bidirectional lead screw 16 is rotatably connected to the middle of the support plates 15; one end of the bidirectional lead screw 16 is connected to a servo motor 17; two groups of sliders 18 are threadedly connected to the middle of the bidirectional lead screw 16; a second horizontal shaft 19 is fixedly connected to the middle of the sliders 18; two sides of the second horizontal shaft 19 are movably connected to support rods 111; the top ends of the support rods 111 are movably connected to the middle of the first horizontal shaft 14; two sides of the support plates 15 are fixedly connected with limit rods 112; during operation, first place the ultrasonic detector in the middle of the top plate 12 and place the bottom plate 1 on the ground at an appropriate distance from the pile foundation, and then drive the servo motor 17 to drive the bidirectional lead screw 16 to rotate at the support plates 15. The rotation of the bidirectional lead screw 16 will drive the sliders 18 to move. When the sliders 18 move, their movement trajectories will be restricted by the limit rods 112, so that the two groups of sliders 18 perform linear movements in opposite directions at the bidirectional lead screw 16. The movement of the sliders 18 will simultaneously drive the second horizontal shaft 19 to move synchronously, and the movement of the second horizontal shaft 19 will push the support rods 111 to displace, thereby changing the inclination angle of the support rods 111. When the inclination angle of the support rods 111 changes, the position of its top will change, thereby driving the first horizontal shaft 14 and the groove plates 13 to rise and fall. The rise and fall of the groove plates 13 can drive the angle of one side of the top plate 12 to change, and the other side of the top plate 12 will squeeze or stretch the spring columns 11, thereby causing the spring columns 11 to perform telescopic movements. When the angle of the top plate 12 changes to be parallel to the horizontal line, the operation of the servo motor 17 can be stopped. This step of making the top plate 12 parallel to the horizontal line by driving the servo motor 17 can prevent the ultrasonic detector main unit from being easily affected by the complex construction environment of the bridge pile foundation and the uneven or sloping ground during construction, resulting in unnecessary angular deviation of the ultrasonic detector main unit, thereby causing additional stress and distortion at the connection between the data cable and the main unit, resulting in loose connection and signal transmission interruption, affecting the detection process.

[0026] like Figure 1 , Figure 5 As shown, hollow blocks 2 are fixedly connected to both sides of the top of the top plate 12; threaded rods 21 are threadedly connected to the middle of the hollow blocks 2; one end of the threaded rod 21 is threadedly connected to a threaded sleeve 22; one end of the threaded sleeve 22 is fixedly connected to an extrusion plate 23; two sets of limit plates 24 are fixedly connected to both sides of the top plate 12; during operation, after the ultrasonic detector is placed on the top plate 12, the threaded rod 21 can be rotated to rotate in the middle of the hollow block 2, and the threaded rod 21 will drive the threaded sleeve 22 and the extrusion plate 23 to move when it rotates. At this time, the extrusion plate 23 is restricted by the limit plate 24 and is forced to change its movement direction, thereby causing the extrusion plate 23 to move to both sides of the ultrasonic detector, thereby clamping and fixing the ultrasonic detector. This step can prevent the ultrasonic detector from slipping off the top plate 12 when the angle of the top plate 12 is changed, causing the ultrasonic wave to be damaged, thereby affecting its normal use and working life.

[0027] like Figure 1 , Figure 2 , Figure 4 As shown, the middle part of the slider 18 is rotatably connected with the rotating shaft 3; the two ends of the rotating shaft 3 are fixedly connected to the rollers 31; the middle part of the roller 31 is provided with a locking groove 32; one side of the bottom plate 1 is fixedly connected to two sets of guide rails 33; the locking groove 32 and the guide rail 33 are in contact with each other; during operation, when the slider 18 moves, it will drive the rotating shaft 3 and the roller 31 to move synchronously. Because the roller 31 is in contact with the surface of the bottom plate 1, the roller 31 will generate friction with the bottom plate 1 during the movement, and then drive the roller 31 and the rotating shaft 3 to rotate under the action of the friction force, and when the roller 31 rotates, it will be restricted by the guide rail 33 and always roll along the surface of the guide rail 33. This step can play the role of assisting the slider 18 to support the top plate 12 through the opening of the locking groove 32, thereby reducing the load and wear of the slider 18, and through the cooperation of the guide rail 33 and the locking groove 32, it can play the role of limiting the moving trajectory of the slider 18, thereby improving the stability of the slider 18 during the movement.

[0028] like Figure 2 , Figure 6 As shown, two groups of inclined rods 4 are fixedly connected to one side of the base plate 1; hollow discs 41 are fixedly connected to the tops of the inclined rods 4; when working, the inclined rods 4 and the hollow discs 41 support the bidirectional screw rod 16. When the bidirectional screw rod 16 rotates, it rotates along the middle of the hollow disc 41. This step supports the bidirectional screw rod 16 through the inclined rods 4 and the hollow disc 41, which can reduce the load of the bidirectional screw rod 16, thereby preventing the bidirectional screw rod 16 from being easily deformed or bent due to long-term load, thereby shortening its working life.

[0029] As Figure 6 shown, a chute 5 is provided in the middle of the hollow disc 41; a plurality of groups of ball bearings 51 are rotatably connected in the middle of the chute 5; during operation, when the bidirectional lead screw 16 rotates, it will generate friction with the ball bearings 51. At this time, the ball bearings 51 will rotate in the middle of the chute 5 under the influence of the frictional force. This step can reduce the friction between the bidirectional lead screw 16 and the inner side wall of the hollow disc 41 by providing the ball bearings 51, thereby improving the smoothness of the rotation of the bidirectional lead screw 16 and further reducing the working load of the servo motor 17.

[0030] As Figure 2 、 Figure 3 、 Figure 4 shown, two limit pads 6 are fixedly connected to both ends of the second horizontal shaft 19; during operation, when the support rod 111 rotates at the second horizontal shaft 19 under the influence of the slider 18, the limit pads 6 can play a role in restricting the rotation trajectory of the second horizontal shaft 19. This step can reduce the situation that the support rod 111 is likely to slide out of the second horizontal shaft 19 due to uneven force during rotation, thereby affecting the normal angle change of the top plate 12.

[0031] As Figure 1 、 Figure 2 shown, two arc-shaped side wing plates 7 are fixedly connected to a corner of the top of the bottom plate 1; the sides of the arc-shaped side wing plates 7 are in mutual contact with the side of the servo motor 17; during operation, when the servo motor 17 operates, it is likely to generate slight vibrations. At this time, the arc-shaped side wing plates 7 can reduce the amplitude of the vibrations of the servo motor 17. This step can improve the stability of the servo motor 17 during operation by the action of the arc-shaped side wing plates 7 and reduce the situation that the servo motor 17 is likely to affect its normal operation due to excessive vibration amplitude.

[0032] Working principle: during operation, the ultrasonic detector is first placed in the middle of the top plate 12 and the bottom plate 1 is placed on the ground at a suitable distance from the pile foundation, and then the servo motor 17 is driven to drive the bidirectional screw rod 16 to rotate at the support plate 15. The rotation of the bidirectional screw rod 16 will drive the slider 18 to move. When the slider 18 moves, it will change its movement trajectory due to the restriction of the limiting rod 112, so that the two groups of sliders 18 move linearly in opposite directions at the bidirectional screw rod 16. The movement of the slider 18 will also drive the second horizontal axis 19 to move synchronously, and the movement of the second horizontal axis 19 will push the support rod 111 to move, thereby changing the inclination angle of the support rod 111. When the inclination angle of the support rod 111 changes, its top position will change, thereby bringing The first horizontal axis 14 and the groove plate 13 are moved up and down. The lifting of the groove plate 13 can drive the angle of one side of the top plate 12 to change, and the other side of the top plate 12 will squeeze or stretch the spring column 11, thereby causing the spring column 11 to perform telescopic movement. When the angle of the top plate 12 changes to be parallel to the horizontal line, the servo motor 17 can be stopped. This step makes the top plate 12 parallel to the horizontal line by driving the servo motor 17, which can prevent the ultrasonic detector host from being easily affected by the complex construction environment of the bridge pile foundation and the unevenness or slope changes on the construction ground, thereby causing unnecessary angle deviation, thereby causing the data cable and the host connection to be subjected to additional stress and distortion, resulting in loose connection and interruption of signal transmission, affecting The detection process occurs. During operation, after the ultrasonic detector is placed on the top plate 12, the threaded rod 21 can be rotated to rotate in the middle of the hollow block 2, and the threaded rod 21 will drive the threaded sleeve 22 and the extrusion plate 23 to move when rotating. At this time, the extrusion plate 23 is restricted by the limiting plate 24 and is forced to change its movement direction, thereby causing the extrusion plate 23 to move to both sides of the ultrasonic detector, thereby clamping and fixing the ultrasonic detector. This step can prevent the ultrasonic detector from being easily affected by the change in the angle of the top plate 12, causing the ultrasonic wave to be damaged, thereby affecting its normal use and working life. During operation, when the slider 18 moves When the roller 31 is in contact with the surface of the bottom plate 1, the roller 31 will generate friction with the bottom plate 1 during the movement, and then drive the roller 31 and the shaft 3 to rotate under the action of the friction force. When the roller 31 rotates, it will be restricted by the guide rail 33 and always roll along the surface of the guide rail 33. This step can play the role of assisting the slider 18 to support the top plate 12 through the opening of the positioning groove 32, thereby reducing the load and wear of the slider 18. Through the mutual cooperation of the guide rail 33 and the positioning groove 32, it can play the role of limiting the movement trajectory of the slider 18, thereby improving the stability of the slider 18 during the movement. When working, the inclined rod 4 and the hollow disk 41 play the role of supporting the bidirectional screw rod 16.When the bidirectional lead screw 16 rotates, it will rotate along the middle of the hollow disc 41. This step, through the support of the inclined rod 4 and the hollow disc 41 for the bidirectional lead screw 16, can reduce the load-bearing of the bidirectional lead screw 16, thereby preventing the bidirectional lead screw 16 from being deformed or bent easily due to long-term load, and thus reducing the occurrence of the situation where its working life is shortened. During operation, when the bidirectional lead screw 16 rotates, it will generate friction with the ball 51. At this time, the ball 51 will rotate in the middle of the chute 5 under the influence of the frictional force. This step, through the arrangement of the ball 51, can reduce the friction between the bidirectional lead screw 16 and the inner wall of the hollow disc 41, thereby improving the smoothness when the bidirectional lead screw 16 rotates, and further reducing the working load of the servo motor 17. During operation, when the support rod 111 rotates at the second cross shaft 19 under the influence of the slider 18, the limit pad 6 can play a role in restricting the rotation trajectory of the second cross shaft 19. This step, through the action of the limit pad 6, can reduce the situation where the support rod 111 is likely to slide out of the second cross shaft 19 due to uneven force during rotation, thus affecting the normal angle change of the top plate 12. During operation, when the servo motor 17 operates, it is likely to generate slight jitter. At this time, the arc-shaped side wing plate 7 can reduce the amplitude of the jitter of the servo motor 17. This step, through the action of the arc-shaped side wing plate 7, can improve the stability of the servo motor 17 during operation and reduce the situation where the servo motor 17 is likely to affect its normal operation due to excessive jitter amplitude.

[0033] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed.

Claims

1. A detection device for non-destructive testing of bridge pile foundations, comprising a base plate (1); two groups of spring columns (11) are connected to one side of the base plate (1); the characteristics are: The top of each spring column (11) is connected to a top plate (12); two groups of groove plates (13) are fixedly connected to one side of the bottom of each top plate (12); a first transverse axis (14) is fixedly connected to the middle of each groove plate (13); two groups of support plates (15) are fixedly connected to one side of each bottom plate (11); a bidirectional screw rod (16) is rotatably connected to the middle of each support plate (15); a servo motor (17) is connected to one end of each bidirectional screw rod (16); two groups of sliders (18) are threadedly connected to the middle of each bidirectional screw rod (16); a second transverse axis (19) is fixedly connected to the middle of each slider (18); support rods (111) are movably connected to both sides of each second transverse axis (19); the top of each support rod (111) is movably connected to the middle of the first transverse axis (14); and limiting rods (112) are fixedly connected to both sides of each support plate (15).

2. The detection equipment for non-destructive testing of bridge pile foundation according to claim 1 is characterized in that: Hollow blocks (2) are fixedly connected to both sides of the top of the top plate (12); a threaded rod (21) is threadedly connected to the middle of the hollow block (2); a threaded sleeve (22) is threadedly connected to one end of the threaded rod (21); an extrusion plate (23) is fixedly connected to one end of the threaded sleeve (22); and two groups of limit plates (24) are fixedly connected to both sides of the top plate (12).

3. The detection equipment for non-destructive testing of bridge pile foundation according to claim 1 is characterized in that: The middle of the slider (18) is rotatably connected to a rotating shaft (3); both ends of the rotating shaft (3) are fixedly connected to rollers (31); a clamping groove (32) is provided in the middle of the roller (31); one side of the bottom plate (1) is fixedly connected to two groups of guide rails (33); the clamping groove (32) and the guide rail (33) are in contact with each other.

4. The detection equipment for non-destructive testing of bridge pile foundation according to claim 1 is characterized in that: Two groups of inclined rods (4) are fixedly connected to one side of the bottom plate (1); and hollow discs (41) are fixedly connected to the tops of the inclined rods (4).

5. The detection equipment for non-destructive testing of bridge pile foundation according to claim 4 is characterized in that: A slide groove (5) is provided in the middle of the hollow disc (41); a plurality of groups of balls (51) are rotatably connected to the middle of the slide groove (5).

6. The detection equipment for non-destructive testing of bridge pile foundation according to claim 1, characterized in that: Both ends of the second transverse axis (19) are fixedly connected to limit pads (6).

7. The detection equipment for non-destructive testing of bridge pile foundation according to claim 1, characterized in that: Two groups of arc-shaped side wing plates (7) are fixedly connected at one corner of the top of the bottom plate (1); the side surfaces of the arc-shaped side wing plates (7) are in contact with the side surfaces of the servo motor (17).

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