Building pile foundation strength detection equipment

Abstract

The invention relates to the technical field of pile foundation detection, and particularly discloses building pile foundation strength detection equipment which comprises a frame structure and a positioning mechanism. The frame body structure comprises a supporting frame and a top frame connected to the top of the supporting frame, a through hole is formed in the supporting frame, an impact detection mechanism used for detecting the strength of the pile foundation is arranged in the through hole, and a positioning mechanism used for fixing the impact detection mechanism is installed on the supporting frame; a calibration mechanism used for calibrating the position of equipment is installed on the supporting frame, and a lifting mechanism used for adjusting the height and the horizontal position of the calibration mechanism is installed on the supporting frame. Equipment can be moved or hoisted to a target position for pile foundation strength detection, after the four sets of calibration rods are adjusted in a matched mode, the calibration rods can correspond to a pile foundation, the position of the equipment can be conveniently adjusted, accurate correspondence of an impact detection mechanism and the position of the pile foundation is facilitated, and follow-up accurate strength detection is facilitated.

Description

Technical Field

[0001] The invention relates to the technical field of pile foundation detection, in particular to a building pile foundation strength detection device. Background Art

[0002] The strength test of building pile foundation is an important part to ensure that the pile foundation can bear the designed load. By applying load on the pile top, testing the vertical bearing capacity and the integrity of the pile body, applying an impact force axially to make the pile have sufficient penetration, measuring the resulting pile body particle stress, and testing the pile foundation strength, the safety and reliability of the pile foundation are ensured.

[0003] The existing patent announcement number CN116399713B discloses a building pile foundation strength detection device, which includes a base; a fixed shaft is connected through the top of the base; one end of the fixed shaft is connected through the base, and the other end is fixedly connected to a top seat; a first screw rod is threadedly matched with the middle part of the top seat, and the top of the first screw rod is fixedly connected to a turntable; the bottom of the first screw rod is fixedly connected to an upper pressure head; a lower pressure head is fixedly connected to the center of the top surface of the base; driving arms are slidably matched with the sides of the base, and one end of the driving arm facing the center of the lower pressure head is threadedly matched with a contact block; the contact block is used to push the pile foundation core sample and keep it coaxial with the upper pressure head; the pile foundation core sample is placed on the lower pressure head, and then the bidirectional screw rod is driven to rotate manually or by a servo motor, and the rotating bidirectional screw rod will drive two symmetrical driving arms to move inward synchronously, and then one driving arm driven by the bidirectional screw rod drives another driving arm symmetrical with respect to the center of the movable seat to move synchronously, so that the four driving arms can move inward synchronously; the correction and centering effect of the pile foundation core sample can be stably achieved.

[0004] When the strength testing device is used, the pile foundation can be centrally positioned before impact testing. However, it is not conducive to adjustment and direct testing for testing of fixed pile foundation positions, and needs to be improved. In view of the above problems, a building pile foundation strength testing device is proposed. Summary of the invention

[0005] The purpose of the present invention is to provide a building pile foundation strength testing device to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A building pile foundation strength testing device comprises a frame structure and a positioning mechanism;

[0008] The frame structure includes a support frame and a top frame connected to the top of the support frame, a through hole is provided in the support frame, an impact detection mechanism for detecting the strength of the pile foundation is provided in the through hole, and a positioning mechanism for fixing the impact detection mechanism is installed on the support frame;

[0009] The support frame is provided with a calibration mechanism for calibrating the position of the equipment, and the support frame is provided with a lifting mechanism for adjusting the height and horizontal position of the calibration mechanism;

[0010] The calibration mechanism comprises a mounting box, and four groups of calibration rods arranged in a circular array are arranged at the bottom of the mounting box. An adjustment mechanism for synchronously adjusting the horizontal positions of the four groups of calibration rods is installed in the mounting box.

[0011] In an optional solution: the impact detection mechanism includes an impact detection seat and a traction ring connected to the top of the impact detection seat, and positioning grooves are provided on both sides of the impact detection seat.

[0012] In an optional solution: two groups of guide rollers are installed on the top frame, the threading point between the two groups of guide rollers corresponds to the position of the traction ring, and two groups of hanging rings are also installed on the top frame.

[0013] In an optional scheme: the positioning mechanism includes a first cross plate and a second cross plate, and the sides of the first cross plate and the second cross plate that are close to each other are connected to the positioning plate, and the positioning plate corresponds to the positioning groove. The electric telescopic rod A is installed on the support frame, and the telescopic end of the electric telescopic rod A is connected to one end of the first cross plate, and the first cross plate and the second cross plate are away from one end of the electric telescopic rod A and the sides that are close to each other are connected to the rack, and one side of the support frame is rotatably connected to the gear, and the gear is meshed with both sets of racks, and the side of the rack close to the support frame is fixedly connected to the T-shaped guide block, and the support frame is provided with a T-shaped slot for the sliding of the T-shaped guide block.

[0014] In an optional solution: the lifting mechanism includes an electric telescopic rod B and a connecting plate connected to the telescopic end at the top of the electric telescopic rod B, the electric telescopic rod B is installed on one side of the support frame, the support frame is slidably connected to a lifting bar, the two groups of lifting bars are fixedly connected to the connecting plate on the sides away from each other, and the two groups of lifting bars are provided with sliding grooves on the sides close to each other, sliding bars that can slide in the sliding grooves are connected to both sides of the installation box, positioning bolts are threadedly connected to the connecting plate, the lifting bar is provided with a through hole for the positioning bolt to pass through, and the sliding bar is provided with a positioning screw hole that cooperates with the positioning bolt.

[0015] In an optional scheme: the adjustment mechanism includes a center plate and four groups of L-shaped rods rotatably connected to the center plate, the four groups of L-shaped rods are arranged in a circular array, the L-shaped rods are rotatably connected to a movable plate at one end away from the center plate, the bottom of the movable plate is connected to a calibration rod via a guide block, a guide member for stable horizontal movement of the guide block is provided in the installation box, and a rotating member for driving the center plate to rotate is installed on the installation box.

[0016] In an optional solution: the guide member includes a disc and a guide groove arranged on the disc, the guide block is slidably arranged in the guide groove, the disc is fixedly installed in the installation box, and a strip hole for sliding of the calibration rod is provided at the bottom of the installation box.

[0017] In an optional solution: the rotating member includes a worm wheel fixedly connected to the top of the center plate, a worm meshing with the worm wheel is installed in the installation box, the worm is rotatably installed in the installation box, and one end of the worm is connected to a turntable arranged outside the installation box through a connecting shaft.

[0018] In an optional solution: the two groups of lifting strips have their sides that are away from each other fixedly connected to a lifting slider, and the support frame is provided with a lifting slide groove for the lifting slider to slide.

[0019] In an optional solution: the bottom of the support frame is connected to a reinforcing support.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] The device of the present invention can be moved or hoisted to the target position to perform pile foundation strength testing. After the four sets of calibration rods are coordinated and adjusted, the calibration rods can correspond to the pile foundation, which is convenient for adjusting the position of the device, and is conducive to the accurate correspondence between the impact detection mechanism and the pile foundation position, so as to facilitate subsequent accurate strength testing.

[0022] The positioning mechanism in the present invention can fix the impact detection mechanism. After the equipment position is adjusted, the fixation of the impact detection mechanism is released, and the pile foundation can be impacted to perform strength detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of the present invention.

[0024] Figure 2 It is a structural schematic diagram of the lifting mechanism in the present invention.

[0025] Figure 3 It is a structural schematic diagram of the positioning mechanism in the present invention.

[0026] Figure 4 It is a structural schematic diagram of the impact detection mechanism in the present invention.

[0027] Figure 5 It is a structural schematic diagram of the calibration mechanism in the present invention.

[0028] Figure 6 It is a schematic diagram of the structure inside the installation box of the present invention.

[0029] Figure 7 It is a schematic diagram of the local structure of the calibration mechanism in the present invention.

[0030] In the figure: 100, frame structure; 101, support frame; 102, top frame; 103, guide roller; 104, hanging ring; 105, through hole;

[0031] 200, positioning mechanism; 201, first horizontal plate; 202, electric telescopic rod A; 203, second horizontal plate; 204, positioning plate; 205, rack; 206, gear; 207, T-shaped guide block;

[0032] 300, calibration mechanism; 301, mounting box; 302, sliding bar; 303, bar-shaped hole; 304, calibration rod; 305, turntable; 306, worm; 307, worm wheel; 308, center plate; 309, L-shaped rod; 310, moving plate; 311, disc; 312, guide groove; 313, guide block;

[0033] 400, lifting mechanism; 401, electric telescopic rod B; 402, connecting plate; 403, lifting strip;

[0034] 500, impact detection mechanism; 501, impact detection seat; 502, positioning groove; 503, traction ring. DETAILED DESCRIPTION

[0035] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] See also Figure 1-Figure 7 In this embodiment, a building pile foundation strength detection device includes a frame structure 100 and a positioning mechanism 200;

[0038] The frame structure 100 includes a support frame 101 and a top frame 102 connected to the top of the support frame 101. A through hole 105 is provided in the support frame 101. An impact detection mechanism 500 for detecting the strength of the pile foundation is provided in the through hole 105. A positioning mechanism 200 for fixing the impact detection mechanism 500 is installed on the support frame 101.

[0039] The support frame 101 is provided with a calibration mechanism 300 for calibrating the position of the device, and the support frame 101 is provided with a lifting mechanism 400 for adjusting the height and horizontal position of the calibration mechanism 300;

[0040] The calibration mechanism 300 includes a mounting box 301, and four groups of calibration rods 304 arranged in a circular array are provided at the bottom of the mounting box 301. An adjustment mechanism for synchronously adjusting the horizontal positions of the four groups of calibration rods 304 is installed in the mounting box 301;

[0041] In this embodiment, the equipment can be moved or hoisted to the target position to perform pile foundation strength testing. The positions of the four sets of calibration rods 304 can be adjusted so that the four sets of calibration rods 304 can be close to the outer wall of the pile foundation. The position of the equipment is adjusted according to the position of the pile foundation. After that, the equipment is placed stably, the impact detection mechanism 500 is released, and the pile foundation can be impacted to perform strength testing.

[0042] like Figure 4 As shown, the impact detection mechanism 500 includes an impact detection seat 501 and a traction ring 503 connected to the top of the impact detection seat 501, and positioning grooves 502 are provided on both sides of the impact detection seat 501; in actual use, a winch, a wire rope and a hook can be used to hang the impact detection seat 501, and then after the hook and the impact detection seat 501 are released, the impact detection seat 501 falls, and an impact force can be applied to the pile foundation axially to detect the strength of the pile foundation; the traction ring 503 is convenient for connecting the hook.

[0043] like Figure 2 As shown, two sets of guide rollers 103 are installed on the top frame 102, and the threading point between the two sets of guide rollers 103 corresponds to the position of the traction ring 503. Two sets of hanging rings 104 are also installed on the top frame 102;

[0044] The setting of the guide roller 103 facilitates the guidance of the wire rope, and the hanging ring 104 facilitates the hoisting of the entire equipment.

[0045] like Figure 2 and Figure 3As shown, the positioning mechanism 200 includes a first transverse plate 201 and a second transverse plate 203, the first transverse plate 201 and the second transverse plate 203 are connected to a positioning plate 204 on one side close to each other, and the positioning plate 204 corresponds to the positioning slot 502, and an electric telescopic rod A202 is installed on the support frame 101, and the telescopic end of the electric telescopic rod A202 is connected to one end of the first transverse plate 201, and the first transverse plate 201 and the second transverse plate 203 are connected to a rack 205 on one side away from one end of the electric telescopic rod A202 and close to each other, and one side of the support frame 101 is rotatably connected to a gear 206, and the gear 206 is meshed with two sets of racks 205, and the rack 205 is fixedly connected to a T-shaped guide block 207 on one side close to the support frame 101, and a T-shaped slot for sliding the T-shaped guide block 207 is provided on the support frame 101;

[0046] The electric telescopic rod A202 can adjust the horizontal position of the first horizontal plate 201. When the horizontal position of the first horizontal plate 201 is adjusted, a set of racks 205 moves horizontally. Through the linkage of the gear 206, it can drive another set of racks 205 to move horizontally in the opposite direction, thereby driving the second horizontal plate 203 to move horizontally. The first horizontal plate 201 and the second horizontal plate 203 move in opposite directions, and the positioning plate 204 can be separated from the positioning groove 502, thereby releasing the limit on the impact detection seat 501, which is convenient for the subsequent impact detection seat 501 to fall after separation from the hook.

[0047] like Figure 2 As shown, the lifting mechanism 400 includes an electric telescopic rod B401 and a connecting plate 402 connected to the top telescopic end of the electric telescopic rod B401, the electric telescopic rod B401 is installed on one side of the support frame 101, and the support frame 101 is slidably connected to a lifting bar 403, the two groups of lifting bars 403 are fixedly connected to the connecting plate 402 on the side away from each other, and the two groups of lifting bars 403 are provided with sliding grooves on the sides. The installation box 301 is connected with sliding bars 302 that can slide in the sliding grooves on both sides, and the connecting plate 402 is threadedly connected with positioning bolts. The lifting bar 403 is provided with a through hole for the positioning bolt to pass through, and the sliding bar 302 is provided with a positioning screw hole that cooperates with the positioning bolt; the positioning bolt can fix the position of the sliding bar 302 in the lifting bar 403. When performing impact detection, the fixing of the sliding bar 302 can be released, and the sliding bar 302 moves in the lifting bar 403, so that the installation box 301 moves to one side without affecting the movement of the impact detection seat 501.

[0048] When the electric telescopic rod B401 is working, the lifting and lowering of the connecting plate 402 can be adjusted, thereby adjusting the lifting and lowering of the lifting bar 403 and adjusting the height of the installation box 301.

[0049] like Figure 6As shown, the adjustment mechanism includes a center plate 308 and four groups of L-shaped rods 309 rotatably connected to the center plate 308, the four groups of L-shaped rods 309 are arranged in a circular array, one end of the L-shaped rods 309 away from the center plate 308 is rotatably connected to the moving plate 310, the bottom of the moving plate 310 is connected to the calibration rod 304 through a guide block 313, a guide member for the guide block 313 to move horizontally stably is provided in the installation box 301, and a rotating member for driving the center plate 308 to rotate is installed on the installation box 301;

[0050] When the center plate 308 rotates, the guide block 313 can be driven to slide by pulling the L-shaped rod 309, thereby synchronously adjusting the positions of the four groups of calibration rods 304. The positions of the calibration rods 304 can be adjusted according to the outer diameter of the pile foundation.

[0051] like Figure 5 and Figure 7 As shown, the guide member includes a disc 311 and a guide groove 312 arranged on the disc 311, the guide block 313 is slidably arranged in the guide groove 312, the disc 311 is fixedly installed in the installation box 301, and the bottom of the installation box 301 is provided with a strip hole 303 for sliding of the calibration rod 304; the guide block 313 can slide stably in the guide groove 312.

[0052] like Figure 5 and Figure 6 As shown, the rotating member includes a worm wheel 307 fixedly connected to the top of the center plate 308, a worm 306 meshing with the worm wheel 307 is installed in the installation box 301, the worm 306 is rotatably installed in the installation box 301, and one end of the worm 306 is connected to a rotating disk 305 arranged outside the installation box 301 through a connecting shaft;

[0053] The worm 306 is rotated by the turntable 305 to drive the worm wheel 307 to rotate, thereby driving the center plate 308 to rotate.

[0054] like Figure 2 As shown, the two groups of lifting bars 403 are fixedly connected to the lifting sliders on the sides away from each other, and the support frame 101 is provided with a lifting slide groove for the lifting slider to slide; when the lifting bars 403 are lifted or lowered, the lifting slider slides stably in the lifting slide groove, so that the lifting bars 403 can be lifted or lowered stably.

[0055] like Figure 1 As shown, the bottom of the support frame 101 is connected to a reinforcing support to improve the stability of the equipment.

[0056] The working principle of the present invention is as follows: the equipment can be moved or hoisted to the target position to detect the strength of the pile foundation, the position of the four sets of calibration rods 304 can be adjusted, the installation box 301 is moved to the bottom of the impact detection mechanism 500, and the position of the sliding bar 302 is fixed by the positioning bolt, thereby fixing the worm 306 by rotating the turntable 305, which can drive the worm wheel 307 to rotate, thereby driving the center plate 308 to rotate. When the center plate 308 rotates, the guide block 313 can be driven to slide by pulling the L-shaped rod 309, thereby synchronously adjusting the position of the four sets of calibration rods 304, and the position of the calibration rod 304 can be adjusted according to the outer diameter of the pile foundation, and the position of the equipment can be adjusted according to the position of the pile foundation. After adjustment, the equipment is placed stably. The electric telescopic rod A202 can adjust the horizontal position of the first horizontal plate 201. When the horizontal position of the first horizontal plate 201 is adjusted, a set of racks 205 moves horizontally. Through the linkage of the gear 206, another set of racks 205 can be driven to move horizontally in the opposite direction, thereby driving the second horizontal plate 203 to move horizontally. The first horizontal plate 201 and the second horizontal plate 203 move in opposite directions. The positioning plate 204 can be separated from the positioning groove 502, and the limit on the impact detection seat 501 is released, which is convenient for the subsequent impact detection seat 501 to fall after being separated from the hook. The impact detection seat 501 can impact the pile foundation for strength detection.

[0057] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A building pile foundation strength testing device, comprising a frame structure (100) and a positioning mechanism (200); Features: The frame structure (100) comprises a support frame (101) and a top frame (102) connected to the top of the support frame (101); a through hole (105) is provided in the support frame (101); an impact detection mechanism (500) for detecting the strength of a pile foundation is provided in the through hole (105); a positioning mechanism (200) for fixing the impact detection mechanism (500) is installed on the support frame (101); The support frame (101) is provided with a calibration mechanism (300) for calibrating the position of the device, and the support frame (101) is provided with a lifting mechanism (400) for adjusting the height and horizontal position of the calibration mechanism (300); The calibration mechanism (300) comprises a mounting box (301), the bottom of which is provided with four groups of calibration rods (304) arranged in a circular array, and an adjustment mechanism for synchronously adjusting the horizontal positions of the four groups of calibration rods (304) is installed in the mounting box (301).

2. A building pile foundation strength testing device according to claim 1, characterized in that: The impact detection mechanism (500) comprises an impact detection seat (501) and a traction ring (503) connected to the top of the impact detection seat (501), and positioning grooves (502) are provided on both sides of the impact detection seat (501).

3. A building pile foundation strength testing device according to claim 2, characterized in that: Two groups of guide rollers (103) are installed on the top frame (102), and the threading point between the two groups of guide rollers (103) corresponds to the position of the traction ring (503). Two groups of hanging rings (104) are also installed on the top frame (102).

4. A building pile foundation strength testing device according to claim 2, characterized in that: The positioning mechanism (200) comprises a first transverse plate (201) and a second transverse plate (203), the first transverse plate (201) and the second transverse plate (203) being connected to a positioning plate (204) on one side thereof, the positioning plate (204) corresponding to the positioning groove (502), an electric telescopic rod A (202) being installed on the support frame (101), the telescopic end of the electric telescopic rod A (202) being connected to one end of the first transverse plate (201), and the first transverse plate (201) The second cross plate (203) is connected to a rack (205) at one end away from and close to the electric telescopic rod A (202); one side of the support frame (101) is rotatably connected to a gear (206); the gear (206) is meshed with both sets of racks (205); the side of the rack (205) close to the support frame (101) is fixedly connected to a T-shaped guide block (207); and the support frame (101) is provided with a T-shaped slot for the T-shaped guide block (207) to slide.

5. A building pile foundation strength testing device according to claim 1, characterized in that: The lifting mechanism (400) comprises an electric telescopic rod B (401) and a connecting plate (402) connected to the top telescopic end of the electric telescopic rod B (401); the electric telescopic rod B (401) is installed on one side of the support frame (101); a lifting bar (403) is slidably connected to the support frame (101); two groups of lifting bars (403) are fixedly connected to the connecting plate (402) on the sides away from each other; two groups of lifting bars (403) are provided with sliding grooves on the sides close to each other; sliding bars (302) that can slide in the sliding grooves are connected to both sides of the installation box (301); positioning bolts are threadedly connected to the connecting plate (402); the lifting bar (403) is provided with a through hole for the positioning bolt to pass through; and the sliding bar (302) is provided with a positioning screw hole that cooperates with the positioning bolt.

6. A building pile foundation strength testing device according to claim 1, characterized in that: The adjustment mechanism comprises a center plate (308) and four groups of L-shaped rods (309) rotatably connected to the center plate (308); the four groups of L-shaped rods (309) are arranged in a circular array; one end of the L-shaped rods (309) away from the center plate (308) is rotatably connected to a movable plate (310); the bottom of the movable plate (310) is connected to a calibration rod (304) via a guide block (313); a guide member for stabilizing the horizontal movement of the guide block (313) is provided in the installation box (301); and a rotating member for driving the center plate (308) to rotate is installed on the installation box (301).

7. A building pile foundation strength testing device according to claim 6, characterized in that: The guide member comprises a disc (311) and a guide groove (312) arranged on the disc (311); the guide block (313) is slidably arranged in the guide groove (312); the disc (311) is fixedly installed in the installation box (301); and a strip hole (303) for sliding of the calibration rod (304) is provided at the bottom of the installation box (301).

8. A building pile foundation strength testing device according to claim 6, characterized in that: The rotating member comprises a worm wheel (307) fixedly connected to the top of the center plate (308); a worm (306) meshing with the worm wheel (307) is installed in the installation box (301); the worm (306) is rotatably installed in the installation box (301); one end of the worm (306) is connected to a turntable (305) arranged outside the installation box (301) through a connecting shaft.

9. A building pile foundation strength testing device according to claim 5, characterized in that: The two sets of lifting strips (403) are fixedly connected to a lifting slider at the sides away from each other, and the support frame (101) is provided with a lifting slide groove for sliding the lifting slider.

10. A building pile foundation strength testing device according to claim 1, characterized in that: The bottom of the support frame (101) is connected to a reinforcing support.

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