CN220725204U - Pile foundation bearing capacity detection device - Google Patents

Abstract

The utility model relates to the technical field of pile foundation bearing capacity, in particular to a pile foundation bearing capacity detection device which comprises a movable underframe, wherein a notch for placing foundation piles is formed in the movable underframe, three groups of vertical frames are arranged on the periphery of the movable underframe, lifting seats are slidably arranged on the vertical frames, ring seats are arranged in the middle of the three groups of vertical frames, the lifting seats are connected with the ring seats through movable arms, gravity hammers are clamped on the inner sides of the ring seats, the lifting height of the gravity hammers can be controlled by synchronous up-down movement of a plurality of groups of lifting seats, and the position of the ring seats in a horizontal plane can be adjusted by independent movement of each group of lifting seats, so that the gravity hammers are enabled to coincide with the center line of the foundation piles, and the detection device is not required to be repeatedly moved.

Description

Pile foundation bearing capacity detection device

Technical Field

The utility model relates to the technical field of pile foundation bearing capacity, in particular to a pile foundation bearing capacity detection device.

Background

The high strain method pile foundation bearing capacity experiment purpose is used for judging whether the vertical bearing capacity of a single pile meets the design requirement, the high strain method pile foundation bearing capacity test is realized by beating the top end of the impact after the suspended heavy hammer is loosened, the currently used pile foundation bearing capacity detection device is difficult to ensure that the center of the heavy hammer and the center of the pile foundation are positioned on the same straight line when the heavy hammer falls down, the center of the heavy hammer and the center of the pile foundation are required to be positioned on the same straight line for ensuring the test accuracy, and the detection device is required to be repeatedly moved, so that the inconvenience of process operation is caused.

Disclosure of Invention

Aiming at the situation, in order to overcome the defects of the prior art, the scheme provides the pile foundation bearing capacity detection device which is realized by the following specific technical means: including removing the chassis, it has offered the breach that supplies the foundation pile to put into to remove on the chassis, it is provided with three sets of erects the frame to remove the chassis week side, it is equipped with the elevating platform to erect to slide on the frame, three sets of erect the frame middle zone and be provided with the ring seat, the elevating platform is all connected with the ring seat through the movable arm, the inboard block of ring seat is provided with the gravity hammer, through the multiunit the synchronous vertical movement of elevating platform can control the height of hanging of gravity hammer, through the position of the adjustable ring seat of independent movement of every group elevating platform in the horizontal plane to remove gravity hammer and make its central line coincidence with the foundation pile, need not to move the detection device wholly repeatedly.

The first preferred technical scheme is as follows: the vertical frame is rotatably provided with a screw rod, the vertical frame is provided with a motor connected with the screw rod, the lifting seat is sleeved on the screw rod through a threaded hole, and the height of the lifting seat is controlled through the rotation of the screw rod.

And the second preferred technical scheme is as follows: the movable arm comprises a first transverse shaft, a second transverse shaft and an arm rod, wherein the first transverse shaft is rotationally arranged on the lifting seat, the second transverse shaft is rotationally arranged on a support arranged on the side wall of the ring seat, fixing seats are respectively arranged at the first transverse shaft end and the second transverse shaft end, and two ends of the arm rod are respectively hinged with the fixing seats on the first transverse shaft and the second transverse shaft.

And the preferred technical scheme is as follows: the utility model discloses a gravity hammer, including ring seat, fixed axle, pendulum rod, ring seat lateral wall periphery, the multiunit through-hole has been seted up, be provided with the fixed axle in the through-hole, the rotation is equipped with the pendulum rod on the fixed axle, the through-hole is worn out at the pendulum rod both ends, the pendulum rod inner swing stretches out in the through-hole port back card goes into the ring channel that gravity hammer top side was seted up, realizes the fixed to the gravity hammer, when needs to test, utilizes the pendulum rod swing to deviate from the ring channel, gravity hammer free fall.

The preferable technical scheme is as follows: the rotary ring is sleeved on the ring seat in a rotating way, the rotary ring is provided with protruding shafts, the number of the protruding shafts is equal to that of the fixed shafts and corresponds to that of the fixed shafts one by one, meanwhile, the protruding shafts slide in long grooves formed in the outer ends of the swing rods, and the rotary ring enables the rotary ring to drive multiple groups of swing rods to swing when rotating.

The preferable technical scheme is as follows: and a telescopic rod is hinged between the ring seat and the rotating ring, and the rotation of the rotating ring is controlled by utilizing the telescopic of the telescopic rod.

Adopt above-mentioned structure to make this scheme possess following beneficial effect:

in this scheme, remove chassis to foundation pile department, need not to relapse whole adjustment, only go up and down alone through control multiunit elevating socket can control the ring seat and remove in the plane for the gravity hammer central line that is hung by the ring seat can coincide with the central line of foundation pile, thereby ensures the degree of accuracy of gravity hammer whereabouts.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:

FIG. 1 is a schematic diagram of the overall structure of the present solution;

FIG. 2 is a schematic view of the ring base of the present embodiment;

FIG. 3 is a schematic view of the rotary ring according to the present embodiment;

fig. 4 is a schematic structural view of the gravity hammer according to the present embodiment.

The movable chassis comprises a movable chassis body 1, a movable chassis 2, a notch 3, a vertical frame 4, a lifting seat 5, a ring seat 6, a through hole 7, a fixed shaft 8, a swinging rod 9, a movable arm 901, a first transverse shaft 902, a second transverse shaft 903, an arm rod 904, a fixed seat 10, a gravity hammer 11, a screw rod 12, a rotating ring 13, a protruding shaft 14, a long groove 15 and a telescopic rod.

Description of the embodiments

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model; all other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-2, the pile foundation bearing capacity detection device comprises a movable chassis 1, a notch 2 for placing foundation piles is formed in the movable chassis 1, three groups of vertical frames 3 are arranged on the periphery of the movable chassis 1, lifting seats 4 are slidably arranged on the vertical frames 3, screw rods 11 are rotatably arranged on the vertical frames 3, motors connected with the screw rods 11 are arranged on the vertical frames 3, the lifting seats 4 are sleeved on the screw rods 11 through threaded holes, ring seats 5 are arranged in middle areas of the three groups of vertical frames 3, the lifting seats 4 are connected with the ring seats 5 through movable arms 9, gravity hammers 10 are arranged on the inner sides of the ring seats 5 in a clamping mode, and the notch 2 is located under the ring seats 5.

Referring to fig. 2, in the pile foundation bearing capacity detection device, the movable arm 9 includes a first transverse shaft 901, a second transverse shaft 902 and an arm rod 903, the first transverse shaft 901 is rotatably disposed on the lifting seat 4, the second transverse shaft 902 is rotatably disposed on a bracket disposed on a side wall of the ring seat 5, the ends of the first transverse shaft 901 and the second transverse shaft 902 are respectively provided with a fixing seat 904, and two ends of the arm rod 903 are respectively hinged with the fixing seats 904 on the first transverse shaft 901 and the second transverse shaft 902.

Referring to fig. 1-4, in the pile foundation bearing capacity detection device, a plurality of groups of through holes 6 are formed in the periphery of the side wall of a ring seat 5, a fixed shaft 7 is arranged in the through holes 6, a swing rod 8 is rotatably arranged on the fixed shaft 7, two ends of the swing rod 8 penetrate out of the through holes 6, the inner end of the swing rod 8 swings to extend out of the inner port of the through holes 6 and then is clamped into an annular groove formed in the side edge of the top of a gravity hammer 10, a rotating ring 12 is rotatably sleeved on the ring seat 5, protruding shafts 13 are arranged on the rotating ring 12, the number of the protruding shafts 13 is equal to and in one-to-one correspondence with that of the fixed shaft 7, meanwhile, the protruding shafts 13 slide in an elongated groove 14 formed in the outer end of the swing rod 8, and a telescopic rod 15 is hinged between the ring seat 5 and the rotating ring 12.

Referring to fig. 1-2, the width of the gap 2 is larger than the diameter or width of the foundation pile.

Referring to fig. 1 and 4, in the pile foundation bearing capacity detecting device, the top end of the gravity hammer 10 is slidably inserted into the ring seat 5, and the top end is in an upward convex arc shape.

Referring to fig. 1-2, in the pile foundation bearing capacity detection device, laser lamps are arranged at the bottom sides of a plurality of groups of brackets at the periphery of the ring seat 5, and when the ring seat 5 is moved, the gravity hammer 10 and the foundation pile position are positioned by emitting laser through the laser lamps.

The concrete use process of pile foundation bearing capacity detection device: the top end of the gravity hammer 10 is inserted into the ring seat 5, and the telescopic rod 15 stretches to push the swinging rod 8 to extend out of the through hole 6, the inner end of the swinging rod is clamped into the annular groove, and the swinging rod contacts with the wall of the annular groove;

starting a motor according to the test requirement to drive a screw rod 11 to rotate and drive a plurality of groups of lifting seats 4 to synchronously move upwards so that the ring seat 5 carries a gravity hammer 10 to move to a high position;

the movable underframe 1 is integrally moved to enable foundation piles to enter the gaps 2, then laser lamps are started, position differences between a plurality of groups of laser lamps and the foundation piles are observed, the positions of the adjusting ring seats 5 in the plane are slightly moved up and down by independently controlling the lifting seats 4 of the corresponding groups, the centers of the plurality of groups of laser lamps are overlapped with the centers of the foundation piles, then the swing rods 8 are pulled to swing and retract into the through holes 6 by utilizing the contraction of the telescopic rods 15, the hanging state of the gravity hammer 10 is relieved, and the gravity hammer 10 falls down and strikes on the foundation piles.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (8)

1. Pile foundation bearing capacity detection device, its characterized in that: including removing chassis (1), it supplies breach (2) that the foundation pile put into to have seted up on chassis (1) to remove, it is provided with three group's erects frame (3) to remove chassis (1) week side, it is equipped with elevating socket (4) to erect to slide on frame (3), three group erect frame (3) intermediate zone and be provided with ring seat (5), elevating socket (4) all are connected with ring seat (5) through movable arm (9), the inboard block of ring seat (5) is provided with gravity hammer (10).

2. The pile foundation bearing capacity detection device of claim 1, wherein: the lifting device is characterized in that a screw rod (11) is rotatably arranged on the vertical frame (3), a motor connected with the screw rod (11) is arranged on the vertical frame (3), and the lifting seat (4) is sleeved on the screw rod (11) through a threaded hole.

3. The pile foundation bearing capacity detection device of claim 1, wherein: the movable arm (9) comprises a first transverse shaft (901), a second transverse shaft (902) and an arm rod (903), wherein the first transverse shaft (901) is rotationally arranged on the lifting seat (4), the second transverse shaft (902) is rotationally arranged on a support arranged on the side wall of the ring seat (5), fixing seats (904) are respectively arranged at the ends of the first transverse shaft (901) and the second transverse shaft (902), and two ends of the arm rod (903) are respectively hinged with the fixing seats (904) on the first transverse shaft (901) and the second transverse shaft (902).

4. The pile foundation bearing capacity detection device of claim 1, wherein: the utility model discloses a gravity hammer, including ring seat (5), fixed axle (7), pendulum rod (8), ring seat (5) lateral wall week side has seted up multiunit through-hole (6), be provided with fixed axle (7) in through-hole (6), rotate on fixed axle (7) and be equipped with pendulum rod (8), through-hole (6) are worn out at pendulum rod (8) both ends, pendulum rod (8) inner swing stretches out in the ring channel of gravity hammer (10) top side seting up behind the port in through-hole (6).

5. The pile foundation load bearing capacity testing device of claim 4, wherein: the rotary ring (12) is sleeved on the ring seat (5) in a rotary mode, the convex shafts (13) are arranged on the rotary ring (12), the number of the convex shafts (13) is equal to that of the fixed shafts (7) and corresponds to that of the fixed shafts one by one, and meanwhile the convex shafts (13) slide in long grooves (14) formed in the outer ends of the swing rods (8).

6. The pile foundation load bearing capacity testing device of claim 5, wherein: a telescopic rod (15) is hinged between the ring seat (5) and the rotating ring (12).

7. A pile foundation bearing capacity testing device according to claim 3, wherein: the laser lamps are arranged at the bottom sides of the groups of brackets at the periphery of the ring seat (5).

8. The pile foundation bearing capacity detection device of claim 1, wherein: the notch (2) is positioned right below the ring seat (5).