Pile foundation high strain method detection device

Abstract

The utility model relates to the technical field of pile foundation detection, in particular to a pile foundation high strain method detection device which comprises a movable base, a supporting frame and a hammering mechanism, the movable base comprises a connecting base and universal wheels, the connecting base is connected to the lower portion of the supporting frame, the universal wheels are connected to the connecting base, and the universal wheels are distributed in the circumferential direction of the connecting base; the hammering mechanism comprises a hammer body, a clamping assembly and a traction assembly, the clamping assembly is slidably connected to the supporting frame, the sliding direction of the clamping assembly is vertical, the clamping assembly is used for clamping the hammer body, the traction assembly is connected to the supporting frame, and the traction assembly is used for driving the clamping assembly to slide. And a plurality of universal wheels are arranged, so that the detection device can be conveniently pushed to a designated position without being carried by external hoisting equipment, and the working efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of pile foundation detection, and in particular to a pile foundation high strain method detection device. Background Art

[0002] Pile foundation can improve the basic dynamic characteristics of the foundation. It can be connected with soil or rock layers with better bearing capacity to enhance the ability of the foundation structure to resist horizontal forces, uplift forces and overturning forces.

[0003] High strain detection is a detection method for determining the vertical compressive bearing capacity and pile body integrity of a single pile. In fact, it is a detection method that uses a heavy hammer to impact the top of the pile, measures the velocity and force time history curves at the top of the pile, and analyzes the wave theory to determine the vertical compressive bearing capacity and pile body integrity of a single pile. Therefore, pile foundation detection devices are often used in high strain detection of pile foundations.

[0004] Some existing pile foundation detection devices are often not easy to move. When detecting different pile foundations, they need to be transported with the help of large cranes or other lifting equipment, which has low work efficiency and is greatly affected by the environment. Utility Model Content

[0005] In order to facilitate the movement of the pile foundation detection device and improve work efficiency, the present application provides a pile foundation high strain method detection device.

[0006] The present application provides a pile foundation high strain method detection device adopts the following technical solution:

[0007] A pile foundation high strain method detection device includes a mobile base, a support frame and a hammer mechanism, the mobile base includes a connecting base and a universal wheel, the connecting base is connected to the lower end of the support frame, the universal wheel is connected to the connecting base, a plurality of universal wheels are provided, and the plurality of universal wheels are distributed circumferentially along the connecting base, the hammer mechanism includes a hammer body, a clamping assembly and a traction assembly, the clamping assembly is slidably connected to the support frame, the sliding direction of the clamping assembly is vertical, the clamping assembly is used to clamp the hammer body, the traction assembly is connected to the support frame, and the traction assembly is used to drive the clamping assembly to slide.

[0008] By adopting the above technical solution and arranging a plurality of universal wheels, it is convenient to push the detection device to a specified position, and no external lifting equipment is required for transportation, thereby improving work efficiency.

[0009] Preferably, the mobile base also includes a first driving cylinder, which is connected to the connecting seat and is used to drive the universal wheel to slide in the vertical direction. The lower end of the connecting seat is provided with an embedding groove, and the embedding groove is used for the universal wheel to be embedded.

[0010] By adopting the above technical solution, when it is necessary to carry, the first drive cylinder works to drive the universal wheel to extend out of the embedding groove, so that the connecting seat is lifted, which is convenient for carrying the detection device. After reaching the designated position, the first drive cylinder works to drive the universal wheel to embed into the embedding groove, which is convenient for protecting the universal wheel, preventing debris and other splashes from damaging the universal wheel during the detection process, and prolonging the service life of the universal wheel, so that the connecting seat contacts the ground, and improves the stability of the detection equipment during the detection process.

[0011] Preferably, the mobile base further comprises an anchor rod, which is threadedly connected to the connecting seat, and a plurality of anchor rods are provided, and the anchor rods are distributed along the circumference of the connecting seat.

[0012] By adopting the above technical solution, the connection base is fixed to the ground through anchor rods, which reduces the possibility of movement during the detection process of the detection device and improves the reliability of the detection device.

[0013] Preferably, the lower end of the anchor rod is conical, and the upper end of the anchor rod is coaxially connected with an adjusting hand wheel.

[0014] By adopting the above technical solution, an adjusting hand wheel is provided, so that the anchor rod can be driven to rotate by turning the adjusting hand wheel, and the lower end of the anchor rod is tapered, so that the anchor rod can be easily embedded in the ground.

[0015] Preferably, it also includes a pile pad and a placement box, wherein the placement box is connected to the support frame, the placement box is provided with a receiving groove, the receiving groove is used for placing the pile pad, the pile pad is used to be placed at the upper end of the pile foundation, and the pile pad is used to cushion the impact of the hammer.

[0016] By adopting the above technical solution, the placement box is provided with a receiving groove, which is convenient for storing the pile pad and reduces the possibility of the pile pad falling or being lost during transportation.

[0017] Preferably, the hammer body includes a base plate, a counterweight, a top plate and a connecting ring, a positioning column is provided on the upper end of the base plate, the counterweight is used to be placed on the upper end of the base plate, the counterweight is provided with a connecting hole, the connecting hole is used for the positioning column to pass through, the top plate is provided with a fixing hole, the fixing hole is used for the positioning column to pass through, the nut is threadedly connected to the positioning column to achieve fixation between the base plate, the counterweight and the top plate, the connecting ring is connected to the upper end of the top plate, and the connecting ring is used to be clamped by the clamping assembly.

[0018] By adopting the above technical solution and adjusting the number of counterweight blocks, the gravity of the hammer can be changed to meet the needs of different pile foundations and improve the applicability of the detection device.

[0019] Preferably, the side wall of the bottom plate is provided with a guide groove, and the guide groove vertically penetrates the bottom plate.

[0020] By adopting the above technical solution, the guide groove guides the sliding of the hammer, reduces the possibility of deviation of the hammer during its falling, makes the hammer coincide with the central axis of the pile foundation, and improves the accuracy of the detection result of the detection device.

[0021] Preferably, a guide rail is connected to the inner side of the support frame, and the guide rail is slidably embedded in the guide groove, and the sliding direction of the guide rail is vertical.

[0022] By adopting the above technical solution, the guide rail is arranged to cooperate with the guide groove, thereby improving the guiding accuracy of the hammer body.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. Several universal wheels are set to facilitate pushing the detection device to the designated position, without the need for external lifting equipment for transportation, thus improving work efficiency;

[0025] 2. When it is necessary to carry, the first drive cylinder works to drive the universal wheel to extend out of the slot, so that the connection seat is lifted, which is convenient for carrying the detection device. After reaching the designated position, the first drive cylinder works to drive the universal wheel to fit into the slot, which is convenient for protecting the universal wheel, preventing debris and other splashes from damaging the universal wheel during the detection process, and prolonging the service life of the universal wheel, so that the connection seat is in contact with the ground, and improving the stability of the detection equipment during the detection process;

[0026] 3. By adjusting the number of counterweights, the gravity of the hammer can be changed to meet the needs of different pile foundations and improve the applicability of the detection device. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of a pile foundation high strain method detection device.

[0028] Figure 2 It is a cross-sectional view of a pile foundation high strain method detection device.

[0029] Figure 3 It is a schematic diagram of the explosion structure of the hammer.

[0030] Description of reference numerals:

[0031] 1. Mobile base; 11. Connecting seat; 111. Embedding groove; 112. Avoidance groove; 113. Threaded hole; 12. Universal wheel; 13. First driving cylinder; 14. Anchor rod; 15. Adjusting hand wheel; 16. Handle;

[0032] 2. Installation mechanism; 21. Support frame; 211. Support column; 212. Installation plate; 2121. Through hole; 213. Rotating frame; 22. Placement box; 221. Accommodation slot; 23. Guide rail;

[0033] 3. hammer mechanism; 31. hammer body; 311. bottom plate; 3111. guide groove; 312. counterweight; 3121. connection hole; 313. top plate; 3131. fixing hole; 314. connection ring; 315. positioning column; 32. clamping assembly; 33. traction assembly; 331. take-up roller; 332. drive motor; 333. suspension rope;

[0034] 4. Pile pad. DETAILED DESCRIPTION

[0035] The present application is further described in detail below in conjunction with the accompanying drawings.

[0036] Reference Figure 1 The embodiment of the present application discloses a pile foundation high strain method detection device including a mobile base. The mobile base includes a connecting base 11 and a handle 16. The connecting base 11 is a rectangular frame, and a side of the connecting base 11 along the length direction is provided with an avoidance groove 112, and the avoidance groove 112 is used for the pile foundation to pass through. The lower end of the handle 16 is fixedly connected to the upper end of the connecting base 11, and the handle 16 is located on the side of the connecting base 11 away from the avoidance groove 112.

[0037] Reference Figure 1 and Figure 2 The mobile base also includes a universal wheel 12 and a first drive cylinder 13. A groove 111 is provided at the lower end of the connecting seat 11, and the universal wheel 12 is slidably embedded in the groove 111, and the sliding direction of the universal wheel 12 is vertical. The first drive cylinder 13 is connected to the connecting seat 11, and the first drive cylinder 13 is used to drive the universal wheel 12 to slide. In this embodiment, the first drive cylinder 13 is an oil cylinder, and the cylinder body of the oil cylinder is fixedly connected to the upper end of the connecting seat 11, and the piston rod of the oil cylinder passes through the connecting seat 11 and is fixedly connected to the upper end of the universal wheel 12. Alternatively, the first drive cylinder 13 can also be a pneumatic cylinder.

[0038] The mobile base also includes an anchor rod 14 and an adjustment hand wheel 15. The connection base 11 is provided with a threaded hole 113. In this embodiment, four threaded holes 113 are provided, and the four threaded holes 113 are distributed at the four corners of the connection base 11. The anchor rod 14 is threadedly connected in the threaded holes 113, and the number of the anchor rods 14 is the same as the number of the threaded holes 113 and corresponds one to one. The lower end of the anchor rod 14 is conical, and the upper end of the anchor rod 14 extends out of the threaded hole 113. The adjustment hand wheel 15 is coaxially fixedly connected to the upper end of the anchor rod 14.

[0039] Reference Figure 1 A pile foundation high strain method detection device also includes a mounting mechanism 2. The mounting mechanism 2 includes a support frame 21. The support frame 21 includes a support column 211 and a mounting plate 212. The lower end of the support column 211 is fixedly connected to the upper end of the connecting seat 11, and two support columns 211 are provided, and the two support columns 211 are symmetrically distributed along the width direction of the connecting seat 11. Both ends of the mounting plate 212 are fixedly connected to the upper ends of the two support columns 211 respectively.

[0040] A pile foundation high strain method detection device also includes a pile pad 4. The pile pad 4 is used to be placed on the upper end of the pile foundation, and the pile pad 4 is used to buffer the impact of the hammer 31. The mounting mechanism 2 also includes a placement box 22. The placement box 22 is fixedly connected to a side of the support column 211 away from another support column 211. A receiving groove 221 is provided at the upper end of the placement box 22, and the receiving groove 221 is used to place the pile pad 4. There are a plurality of receiving grooves 221, and the plurality of receiving grooves 221 are spaced apart along the width direction of the connecting seat 11, and the groove width of any receiving groove 221 is different.

[0041] A pile foundation high strain method detection device also includes a hammer mechanism 3. The hammer mechanism 3 includes a clamping assembly 32 and a traction assembly 33. The traction assembly 33 includes a take-up roller 331, a drive motor 332 and a suspension rope 333. The upper end of the mounting plate 212 is connected to a rotating frame 213, and two rotating frames 213 are provided. The two rotating frames 213 are symmetrically distributed along the length direction of the mounting plate 212. The take-up roller 331 is rotatably connected to the rotating frame 213, and the rotation axis of the take-up roller 331 is parallel to the length direction of the mounting plate 212. The body of the drive motor 332 is fixedly connected to the upper end of the mounting plate 212, and the output shaft of the drive motor 332 is coaxially fixedly connected to one end of the take-up roller 331. The suspension rope 333 is wound and stored on the take-up roller 331. The mounting plate 212 is provided with a through hole 2121, and one end of the suspension rope 333 passes through the through hole 2121 and is fixedly connected to the upper end of the clamping assembly 32. In this embodiment, the clamping assembly 32 adopts an electric clamp.

[0042] The mounting mechanism 2 further includes a guide rail 23. The guide rail 23 is fixedly connected to one side of the support column 211 facing the other support column 211, the length direction of the guide rail 23 is vertical, the lower end of the guide rail 23 is flush with the upper surface of the connecting seat 11, and there is a gap between the upper end of the guide rail 23 and the lower end of the mounting plate 212. Two guide rails 23 are provided, and the two guide rails 23 are symmetrically distributed along the width direction of the connecting seat 11.

[0043] Reference Figure 1 and Figure 3 The hammer mechanism 3 also includes a hammer body 31. The hammer body 31 includes a bottom plate 311. The bottom plate 311 is provided with guide grooves 3111 on both sides along the width direction of the connecting seat 11. The guide grooves 3111 vertically penetrate the bottom plate 311. The guide rails 23 are slidably embedded in the guide grooves 3111. The sliding direction of the guide rails 23 is vertical. The number of the guide grooves 3111 is the same as the number of the guide rails 23 and corresponds one to one. In this embodiment, the guide grooves 3111 are dovetail-shaped.

[0044] Reference Figure 3 A positioning column 315 is connected to the upper end of the bottom plate 311 , and two positioning columns 315 are provided. The two positioning columns 315 are symmetrically distributed along the width direction of the connecting seat 11 .

[0045] The hammer body 31 also includes a counterweight 312, a top plate 313 and a connecting ring 314. The counterweight 312 is used to be placed on the upper end of the bottom plate 311. The counterweight 312 is provided with a connecting hole 3121. The connecting hole 3121 is used for the positioning column 315 to pass through. The number of the connecting holes 3121 is the same as the number of the positioning columns 315 and corresponds one to one. There are a plurality of counterweights 312, and the plurality of counterweights 312 are evenly distributed vertically. In this embodiment, there are three counterweights 312. The top plate 313 is located on the side of the counterweight 312 away from the bottom plate 311. The top plate 313 is provided with a fixing hole 3131. The fixing hole 3131 is used for the positioning column 315 to pass through and then be threadedly connected with a nut to achieve the fixation between the bottom plate 311, the counterweight 312 and the top plate 313. The number of the fixing holes 3131 is the same as the number of the positioning columns 315 and corresponds one to one. The connecting ring 314 is fixedly connected to one end of the top plate 313 away from the counterweight 312. The connecting ring 314 is used for being clamped by the clamping assembly 32.

[0046] The implementation principle of a pile foundation high strain method detection device in an embodiment of the present application is: when the detection device needs to be moved, the first driving cylinder 13 works to drive the universal wheel 12 to extend out of the embedding groove 111, so that the connecting seat 11 is lifted, which is convenient for pushing the handle 16 to realize the movement of the detection device.

[0047] When the detection device reaches the specified position, the first drive cylinder 13 works, driving the universal wheel 12 to embed into the embedding groove 111, so that the bottom of the connecting seat 11 contacts the ground. By turning the adjusting hand wheel 15, the anchor rod 14 is driven to rotate, so that the lower end of the anchor rod 14 is embedded in the ground, and the connection seat 11 and the ground are fixed. According to the needs, the pile pad 4 of appropriate thickness is selected and placed on the top of the pile foundation to be tested. Loosen the nut, remove the top plate 313, select the appropriate number of counterweights 312, place the top plate 313 on the upper end of the counterweight 312, and tighten the nut to achieve the fixation between the top plate 313, the counterweight 312 and the bottom plate 311. The clamping assembly 32 clamps the connecting ring 314, drives the motor 332 to work, drives the take-up roller 331 to rotate, realizes the winding of the suspension rope 333, drives the clamping assembly 32 to move upward, and then drives the hammer body 31 to move upward. When the lower end of the hammer body 31 maintains a certain distance from the upper surface of the pile pad 4, the clamping assembly 32 releases the connecting ring 314, so that the hammer body 31 falls vertically along the guide rail 23 under the action of gravity, and hits the pile pad 4, so that the sensor can detect the data after the pile foundation is hit.

[0048] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A pile foundation high strain method detection device, characterized in that: The invention comprises a movable base, a support frame (21) and a hammer mechanism (3); the movable base comprises a connecting base (11) and a universal wheel (12); the connecting base (11) is connected to the lower end of the support frame (21); the universal wheel (12) is connected to the connecting base (11); a plurality of universal wheels (12) are provided; the plurality of universal wheels (12) are distributed along the circumference of the connecting base (11); the hammer mechanism (3) comprises a hammer body (31), a clamping assembly (32) and a traction assembly (33); the clamping assembly (32) is slidably connected to the support frame (21); the sliding direction of the clamping assembly (32) is vertical; the clamping assembly (32) is used to clamp the hammer body (31); the traction assembly (33) is connected to the support frame (21); and the traction assembly (33) is used to drive the clamping assembly (32) to slide.

2. The pile foundation high strain method detection device according to claim 1, characterized in that: The mobile base further comprises a first driving cylinder (13); the first driving cylinder (13) is connected to the connecting seat (11); the first driving cylinder (13) is used to drive the universal wheel (12) to slide in a vertical direction; the lower end of the connecting seat (11) is provided with an embedding groove (111); the embedding groove (111) is used for the universal wheel (12) to be embedded.

3. The pile foundation high strain method detection device according to claim 1, characterized in that: The mobile base further comprises an anchor rod (14); the anchor rod (14) is threadedly connected to the connecting seat (11); a plurality of the anchor rods (14) are provided; and the anchor rods (14) are distributed along the circumference of the connecting seat (11).

4. The pile foundation high strain method detection device according to claim 3 is characterized in that: The lower end of the anchor rod (14) is conical; the upper end of the anchor rod (14) is coaxially connected to an adjusting hand wheel (15).

5. The pile foundation high strain method detection device according to claim 1, characterized in that: It also comprises a pile pad (4) and a placement box (22); the placement box (22) is connected to the support frame (21); the placement box (22) is provided with a receiving groove (221); the receiving groove (221) is used for receiving the pile pad (4); the pile pad (4) is used for being placed on the upper end of the pile foundation; the pile pad (4) is used for buffering the impact of the hammer (31).

6. The pile foundation high strain method detection device according to claim 1, characterized in that: The hammer body (31) comprises a bottom plate (311), a counterweight (312), a top plate (313) and a connecting ring (314); a positioning column (315) is provided at the upper end of the bottom plate (311); the counterweight (312) is used to be placed on the upper end of the bottom plate (311); the counterweight (312) is provided with a connecting hole (3121); the connecting hole (3121) is used to allow the positioning column (315) to pass through; the top plate (313) is provided with a fixing hole (3131); the fixing hole (3131) is used to allow the positioning column (315) to pass through and then be threadedly connected with a nut to achieve fixation between the bottom plate (311), the counterweight (312) and the top plate (313); the connecting ring (314) is connected to the upper end of the top plate (313); the connecting ring (314) is used to be clamped by the clamping assembly (32).

7. The pile foundation high strain method detection device according to claim 6, characterized in that: A guide groove (3111) is provided on the side wall of the bottom plate (311); the guide groove (3111) vertically penetrates the bottom plate (311).

8. The pile foundation high strain method detection device according to claim 7, characterized in that: A guide rail (23) is connected to the inner side of the support frame (21); the guide rail (23) is slidably embedded in the guide groove (3111); and the sliding direction of the guide rail (23) is vertical.

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