Engineering pile foundation quality detection equipment

Abstract

The utility model relates to an engineering pile foundation quality detection equipment, including ultrasonic detector, ultrasonic transducer and the cable connected between ultrasonic detector and ultrasonic transducer, still include tripod and install in the top of tripod's '' U '' type support, be equipped with the take-up reel and the take-up motor of drive take-up reel rotation of rotation connection with it on '' U '' type support, ultrasonic detector is built -in and has the controller of control take-up motor, the top of '' U '' type support still is installed '' n '' type support, be equipped with the axle support of elastic connection with it on '' n '' type support, the line compression shaft of rotating joint with cable compression on take-up reel on axle support is still installed. Through take-up motor recovery cable, speed controllable, only needs single person operation, saves manual cost.

Description

Technical Field

[0001] This utility model relates to the field of engineering quality testing technology, specifically to an engineering pile foundation quality testing device. Background Technology

[0002] Pile foundations are underground column-shaped foundations for buildings, constructed by drilling and pouring concrete. If there are debris at the bottom of the borehole or impurities in the concrete, defects such as missing edges and discontinuous piles can easily occur in the pile foundation. Therefore, structural integrity quality testing is required.

[0003] The current mainstream testing method is the acoustic transmission method: during pile foundation construction, acoustic logging tubes are pre-embedded as testing channels. The testing device includes an acoustic detector, multiple wired transducers, and a shared depth counter. During operation, the operator needs to simultaneously and slowly pull the transducer cables to make them rise at a uniform speed. During this process, each transducer emits acoustic waves and receives signals from the other three channels, which are then transmitted to the detector to analyze the integrity of the pile foundation.

[0004] However, this method has obvious problems: First, it is difficult to control the speed when manually pulling the cable, and the transducer rises unstablely, resulting in large fluctuations in the test data and affecting the accuracy; Second, the test requires at least two workers, one to operate the test instrument and the other to retrieve the cable, which results in high labor costs. Utility Model Content

[0005] This utility model provides an engineering pile foundation quality testing device that uses a cable retraction motor to recover the cable at a controllable speed; it can be operated by a single person, saving labor costs.

[0006] An engineering pile foundation quality testing device includes an ultrasonic detector, an ultrasonic transducer, and a cable connecting the ultrasonic detector and the ultrasonic transducer. It also includes a tripod and a U-shaped bracket mounted on top of the tripod. The U-shaped bracket has a take-up reel rotatably connected to it and a take-up motor that drives the take-up reel to rotate. The ultrasonic detector has a built-in controller for controlling the take-up motor. An n-shaped bracket is also mounted on top of the U-shaped bracket, and an axle bracket is elastically connected to it. A pressure shaft that presses the cable onto the take-up reel is rotatably connected to the axle bracket. Furthermore, to synchronously monitor the depth position of the ultrasonic transducer, a spindle encoder is installed on the axle of the take-up reel. The number of rotations of the take-up reel recorded by the spindle encoder can be converted into the lifting height of the ultrasonic transducer.

[0007] Further, a guide rod passing through the n-shaped support and being in sliding connection therewith is connected to the top of the axle bracket, and a spring abutting between the axle bracket and the n-shaped support is sleeved on the guide rod. The elastic connection structure composed of the guide rod and the spring enables the wire pressing shaft to always maintain appropriate pressure on the cable, avoiding the looseness of the cable that affects the wire take-up effect of the take-up reel. Furthermore, the top end of the guide rod passes through the n-shaped support and is connected with a limit block, and the bottom end of the guide rod is in threaded connection with the top of the axle bracket.

[0008] Further, vertical guide holes are respectively provided on both sides of the n-shaped support, and guide shafts extending into the corresponding guide holes are provided on both sides of the axle bracket. The cooperation between the guide shafts and the guide holes provides stable guidance for the axle bracket in the vertical direction, which facilitates lifting the axle bracket to drive the wire pressing shaft to lift and release the cable so as to adjust the cable length.

[0009] Further, one end of the n-shaped support is hinged to one end of the top of the U-shaped support, a protruding buckle block is arranged on the outer side wall of the other end of the U-shaped support, and a buckle ring is correspondingly arranged on the n-shaped support corresponding to the buckle block. Specifically, before the detection starts, the n-shaped support is lifted, after the cable length is adjusted, the cables are placed side by side on the take-up reel, then the n-shaped support is closed, and the buckle ring is buckled on the buckle block of the U-shaped support, so that the wire pressing shaft presses the cable. The preparation process is simple and convenient to operate.

[0010] Further, vertically arranged wire arranging shafts are respectively arranged on both front sides of the take-up reel on the U-shaped support, and wire arranging rods spaced apart and fixed on the U-shaped support are arranged between the two wire arranging shafts. The cooperation between the wire arranging shafts and the wire arranging rods can guide and limit the cable, preventing the cable from shifting during the retraction and unreeling process

[0011] Further, the surface of the take-up reel is provided with wire arranging grooves corresponding to the cables. The wire arranging grooves adapted to the outer diameter of the cables are arranged on the surface of the take-up reel, ensuring that the cables can be neatly embedded in the wire arranging grooves and preventing messy winding.

[0012] Further, a support base is arranged on the top of the tripod, alignment blocks distributed in a shape of Chinese character 'pin' are arranged on the support base, and alignment grooves corresponding to the alignment blocks are arranged at the bottom of the U-shaped support. Furthermore, a support fixing screw passing upward through the support base and rotationally fitting therewith is arranged at the bottom of the support base, and the support fixing screw is in threaded connection with the bottom of the U-shaped support.

[0013] Further, a level is arranged on the top of the tripod, each leg of the tripod is provided with a telescopic rod and a corresponding locking structure. The telescopic rods arranged on the legs of the tripod enable the height of each leg to be adjustable. Cooperating with the level on the top, the height of each leg can be adjusted when setting up the tripod, ensuring that the U-shaped support is arranged horizontally.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model uses a take-up motor to drive a take-up wheel to retrieve the cable, replacing manual pulling, which stabilizes the rising speed of the ultrasonic transducer and improves the stability and accuracy of the detection data; the take-up motor automatically retrieves the cable without manual intervention, reducing the need for manual labor, requiring only one person to operate, reducing labor costs and improving detection efficiency. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of this utility model.

[0017] Figure 2 This is a schematic diagram of the "U"-shaped bracket in this utility model.

[0018] Figure 3 This is a schematic diagram of the tripod structure in this utility model.

[0019] Figure 4 for Figure 3 A magnified view of a portion of point A in the middle.

[0020] Figure 5 This is a schematic diagram of the locking structure in this utility model.

[0021] The components include: 1. Ultrasonic detector; 2. Ultrasonic transducer; 3. Cable; 4. Tripod; 5. "U"-shaped bracket; 6. Take-up reel; 7. Take-up motor; 8. "n"-shaped bracket; 9. Wheel and axle bracket; 10. Pressure shaft; 11. Guide rod; 12. Spring; 13. Limiting block; 14. Guide hole; 15. Guide shaft; 16. Buckle block; 17. Buckle ring; 18. Cable management shaft; 19. Cable management rod; 20. Cable management groove; 21. Bracket base; 22. Alignment block; 23. Bracket fixing screw; 24. Level; 25. Telescopic rod; 26. Locking structure; 27. Sliding block; 28. Lock; 29. ​​Gap; 30. Locking rod; 31. Cam. Detailed Implementation

[0022] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0023] Please see Figure 1-5 An engineering pile foundation quality testing device includes an ultrasonic detector 1, an ultrasonic transducer 2, and a cable 3 connecting the ultrasonic detector 1 and the ultrasonic transducer 2. It also includes a tripod 4 and a "U"-shaped bracket 5 installed on the top of the tripod 4. The "U"-shaped bracket 5 is provided with a take-up reel 6 rotatably connected thereto and a take-up motor 7 that drives the take-up reel 6 to rotate. The ultrasonic detector 1 has a built-in controller for controlling the take-up motor 7. An "n"-shaped bracket 8 is also installed on the top of the "U"-shaped bracket 5. The "n"-shaped bracket is provided with a wheel axle bracket 9 elastically connected thereto. A pressing shaft 10 that presses the cable 3 onto the take-up reel 6 is rotatably connected to the wheel axle bracket 9. Furthermore, to synchronously monitor the depth position of the ultrasonic transducer 2, a spindle encoder connected to the controller is installed on the shaft of the take-up reel 6. The number of rotations of the take-up reel 6 recorded by the spindle encoder can be converted into the lifting height of the ultrasonic transducer 2. Specifically, the lifting height h of the ultrasonic transducer 2 is h = 2nπR, where n is the number of rotations of the take-up reel, and R is the radius of the take-up reel 6. Specifically, the cable 3 passes through the gap between the pressure shaft 10 and the take-up reel 6 and is connected to the ultrasonic detector 1. When retrieving the cable 3, the cable 3 is sent out through the gap and falls naturally. The cable 3 can only be manually tidied up after the inspection is completed.

[0024] In this embodiment, a guide rod 11 is connected to the top of the axle bracket 9, passing through and slidably connected to the "n"-shaped bracket 8. A spring 12 is fitted on the guide rod 11, abutting against the axle bracket 9 and the "n"-shaped bracket 8. The elastic connection structure formed by the guide rod 11 and the spring 12 ensures that the pressure shaft 10 always maintains appropriate pressure on the cable 3, preventing the cable 3 from becoming loose and affecting the take-up effect of the take-up reel 6. Furthermore, the top end of the guide rod 11 passes through the "n"-shaped bracket 8 and is connected to a limit block 13, while the bottom end of the guide rod 11 is threadedly connected to the top of the axle bracket 9.

[0025] In this embodiment, the "n"-shaped bracket 8 has vertical guide holes 14 on both sides, and the wheel axle bracket 9 has guide shafts 15 on both sides that extend into the corresponding guide holes 14. The guide shafts 15 and guide holes 14 cooperate to guide the wheel axle bracket smoothly in the vertical direction, making it convenient to lift the wheel axle bracket 9 to drive the wire pressing shaft 10 to lift and release the cable 3 so as to adjust the length of the cable 3.

[0026] In this embodiment, one end of the n-shaped bracket 8 is hinged to one top end of the U-shaped bracket 5, a protruding buckle block 16 is provided on the outer side wall of the other end of the U-shaped bracket 5, and a buckle ring 17 is provided on the n-shaped bracket 8 at a position corresponding to the buckle block 16. Specifically, before the detection starts, the n-shaped bracket 8 is lifted open, after the length of the cables 3 is adjusted, the cables 3 are placed side by side on the take-up reel 6, then the n-shaped bracket 8 is closed, and the buckle ring 17 is buckled on the buckle block 16 of the U-shaped bracket 5, so that the wire pressing shaft 10 compresses the cables 3, and the preparation process is simple and convenient to operate.

[0027] In this embodiment, vertically arranged wire arranging shafts 18 are respectively provided on two sides of the front side of the take-up reel 6 on the U-shaped bracket 5, and wire arranging rods 19 which are arranged at intervals and fixed to the U-shaped bracket 5 are provided between the two wire arranging shafts 18. The cooperation of the wire arranging shafts 18 and the wire arranging rods 19 can guide and limit the cables 3, so as to prevent the cables 3 from deviating during the winding and unwinding process

[0028] In this embodiment, the surface of the take-up reel 6 is provided with wire arranging grooves 20 corresponding to the cables 3. The surface of the take-up reel 6 is provided with wire arranging grooves 20 adapted to the outer diameter of the cables 3, which ensures that the cables 3 can be neatly embedded in the wire arranging grooves 20 and prevents messy winding.

[0029] In this embodiment, the top of the tripod 4 is provided with a bracket base 21, alignment blocks 22 distributed in a delta shape are arranged on the bracket base 21, and an alignment groove (not shown in the figure) corresponding to the alignment blocks 22 is provided at the bottom of the U-shaped bracket 5. Furthermore, a bracket fixing screw 23 that upwardly passes through the bracket base 21 and is rotatably engaged therewith is provided at the bottom of the bracket base 21, and the bracket fixing screw 23 is threadedly connected to the bottom of the U-shaped bracket 5.

[0030] In this embodiment, a level 24 is provided on the top of the tripod 4, each leg of the tripod 4 is provided with a telescopic rod 25 and correspondingly provided with a locking structure 26. Specifically, the locking structure 26 comprises a sliding block 27 sleeved on the leg of the tripod 4 and a lock catch 28 arranged on the sliding block 27, the sliding block 27 is fixedly connected with the top end of the telescopic rod 25, a clamping slit 29 arranged along the leg and a lock rod 30 perpendicularly arranged to the clamping slit 29 are arranged on the sliding block 27, the lock rod 30 passes through the clamping slit 29 and is hinged to the lock catch 28, and a cam portion 31 that cooperates with the lock rod 30 to tighten the clamping slit 29 is arranged on the lock catch 28. The telescopic rods 25 arranged on the legs of the tripod 4 enable the height of each leg to be adjustable, and in cooperation with the level 24 on the top of the tripod 4, the height of each leg can be adjusted when setting up the tripod 4, so as to ensure that the U-shaped bracket 5 is arranged horizontally.

[0031] The working principle of the present utility model is:

[0032] Unfold and fix the tripod 4 at the pile foundation testing site, ensuring that the "U"-shaped support 5 is in a horizontal and stable state. Connect the cable 3 to the ultrasonic transducer 2 and place the ultrasonic transducer 2 into the acoustic tube of the pile foundation. Stop releasing the cable after the ultrasonic transducer 2 touches the bottom. Organize the cable 3 neatly and press it onto the take-up reel 6 with the wire pressing shaft 10. Initialize the parameters of the ultrasonic detector 1 and then start the test. The take-up motor 7 drives the take-up reel 6 to smoothly pull up the cable 3. The ultrasonic detector 1 begins to detect the data transmitted back by the ultrasonic transducer 2 in real time.

[0033] The beneficial effects of this utility model are as follows: This utility model uses a take-up motor 7 to drive a take-up wheel 6 to retract the cable 3, replacing manual pulling, which stabilizes the rising speed of the ultrasonic transducer 2 and improves the stability and accuracy of the detection data; the take-up motor 7 automatically retracts the cable 3 without manual intervention, reducing the need for manual labor, requiring only one person to operate, reducing labor costs and improving detection efficiency.

[0034] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A quality testing device for engineering pile foundations, comprising an ultrasonic testing instrument, an ultrasonic transducer, and a cable connecting the ultrasonic testing instrument and the ultrasonic transducer, characterized in that, It further comprises a tripod and a U-shaped bracket mounted on the top of the tripod, wherein the U-shaped bracket is provided with a take-up reel rotatably connected thereto and a take-up motor driving the take-up reel to rotate; the ultrasonic detector is internally provided with a controller for controlling the take-up motor; an n-shaped bracket is further mounted on the top of the U-shaped bracket, a wheel axle bracket elastically connected with the n-shaped bracket is arranged on the n-shaped bracket, and a wire pressing shaft for pressing a cable onto the take-up reel is rotatably connected to the wheel axle bracket.

2. The engineering pile foundation quality testing equipment according to claim 1, characterized in that, The top of the wheel axle bracket is connected with a guide rod that passes through the n-shaped bracket and is slidably connected therewith, and a spring abutting between the wheel axle bracket and the n-shaped bracket is sleeved on the guide rod.

3. The engineering pile foundation quality testing equipment according to claim 1 or 2, characterized in that, Vertical guide holes are respectively provided on both sides of the n-shaped bracket, and guide shafts extending into the corresponding guide holes are provided on both sides of the wheel axle bracket.

4. The engineering pile foundation quality testing equipment according to claim 1, characterized in that, One end of the n-shaped bracket is hinged to one end of the top of the U-shaped bracket, a protruding buckle block is arranged on the outer side wall of the other end of the U-shaped bracket, and a buckle ring is correspondingly arranged on the n-shaped bracket corresponding to the buckle block.

5. The engineering pile foundation quality testing equipment according to claim 1, characterized in that, Vertically arranged wire arranging shafts are respectively arranged on both sides of the front side of the take-up reel on the U-shaped bracket, and a wire arranging rod arranged at intervals and fixed on the U-shaped bracket is arranged between the two wire arranging shafts.

6. The engineering pile foundation quality testing equipment according to claim 1, characterized in that, The surface of the take-up reel is provided with a wire arranging groove corresponding to the cable.

7. The engineering pile foundation quality testing equipment according to claim 1, characterized in that, A bracket base is arranged on the top of the tripod, alignment blocks distributed in a triangle shape are arranged on the bracket base, and alignment grooves corresponding to the alignment blocks are arranged at the bottom of the U-shaped bracket.

8. The engineering pile foundation quality testing equipment according to claim 1, characterized in that, A level is arranged on the top of the tripod, each leg of the tripod is provided with a telescopic rod and correspondingly provided with a locking structure.

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