A large-diameter super-long cast-in-place pile detection device

Abstract

The application relates to the technical field of building construction, in particular to a large-diameter super-long cast-in-place pile detection device. The application comprises a rope winding and unwinding device and an outer frame, the inner bottom end of the outer frame is rotationally installed with a chassis, the inner top wall of the outer frame is fixedly installed with a servo motor, and the output end of the servo motor is fixedly installed with a connecting shaft; further comprising: a middle column fixedly installed at the center position of the chassis, the center position of the middle column is rotationally installed with an inner disc; a long column fixedly installed on the connecting shaft; a first clamping block fixedly installed on the inner disc and a second clamping block fixedly installed on the middle column; a baffle rotationally installed on the chassis, a through hole is formed in the chassis, and the baffle is arranged in the through hole. The application solves the problem that most of the existing detection methods can only detect the thickness of the sediment layer when detecting, and there is no way to improve the sediment layer when the thickness is above the standard value but not very serious.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of building construction, in particular to a large-diameter super-long cast-in-place pile detection device. BACKGROUND

[0002] The bottom sediment of a cast-in-place pile is an important factor affecting the bearing capacity of the pile foundation. The thick sediment will produce a "soft pad" effect, thereby reducing the pile bearing capacity and increasing the pile settlement. Research shows that when the thickness of the sediment increases and the strength decreases, the maximum loss of pile end resistance can reach more than 80%, and the thicker the sediment, the greater the loss of the pile foundation bearing capacity. The thickness of the bottom sediment of a bored cast-in-place pile is an important indicator of the quality of the hole forming, and the control and measurement measures are one of the key measures to ensure the construction quality of the bored cast-in-place pile and the bearing capacity of the pile foundation. Therefore, the current corresponding national standards and specifications have clear requirements for the control of the thickness of the sediment. When the pile is mainly frictional, the allowable thickness of the sediment should not be greater than 100 mm, and when the pile is mainly end bearing, the allowable thickness of the sediment should not be greater than 50 mm. For end bearing piles, the thickness of the bottom sediment should not be greater than 50 mm. For friction piles, the thickness should not be greater than 150 mm.

[0003] When the sediment layer is detected, there are needle and disc methods, weight methods and the like. However, most of the existing detection methods can only detect the thickness of the sediment layer when detecting, and when the thickness is above the standard value but not very serious, there is no way to improve the sediment layer, and subsequent construction is required to clean up, thereby causing long detection time and affecting the progress of the entire construction. SUMMARY

[0004] The application aims to solve the problem of single sediment layer detection in the prior art and provides a large-diameter super-long cast-in-place pile detection device.

[0005] To achieve the above-mentioned purpose, the application adopts the following technical scheme: a large-diameter super-long cast-in-place pile detection device, comprising a winding and unwinding rope and an outer frame, a bottom disc is rotatably installed at the inner bottom end of the outer frame, a servo motor is fixedly installed on the inner top wall of the outer frame, and a connecting shaft is fixedly installed at the output end of the servo motor; further comprising: a middle column fixedly installed at the center position of the bottom disc, an inner disc rotatably installed at the center position of the middle column; a long column fixedly installed on the connecting shaft; a first clamping block fixedly installed on the inner disc and a second clamping block fixedly installed on the middle column; a baffle rotatably installed on the bottom disc, a through hole is formed in the bottom disc, and the baffle is arranged in the through hole.

[0006] Preferably, a connecting strip is vertically and slidingly installed at the bottom end of the bottom disc, an outer disc is fixedly installed at the bottom end of the connecting strip, and a protective cover is fixedly installed at the top end of the bottom disc.

[0007] The baffle is fixedly installed with a rotating shaft, the rotating shaft is fixedly installed with a long shaft, the long shaft is fixedly installed with a convex plate, and the connecting strip is located at the bottom end of the convex plate.

[0008] Preferably, the bottom end of the inner disc is fixedly installed with a screw rod, the screw rod is threadedly matched with a sliding plate, the sliding plate vertically slides in the middle column, the bottom end of the sliding plate is fixedly installed with a damping spring, the bottom end of the damping spring is fixedly installed with a top disc, and the bottom end of the top disc is installed with a measuring rod.

[0009] Preferably, the first clamping block and the second clamping block are both in the shape of a right triangle, and the first clamping block and the second clamping block are oppositely arranged.

[0010] Preferably, the baffle is rotatably installed with a cylinder, the cylinder is fixedly installed with a rotating plate, one end of the cylinder in the baffle is fixedly installed with a round wheel, the inside of the baffle is horizontally slidably installed with a sliding rod, and the sliding rod is fixedly installed with a pushing plate.

[0011] Preferably, the baffle is fixedly installed with two blocking strips.

[0012] Preferably, the inner side wall of the through hole is provided with a clamping groove, and the size of the clamping groove is matched with the size of the pushing plate.

[0013] The end of the pushing plate close to the measuring rod is provided with a round corner.

[0014] Preferably, the clamping groove is horizontally slidably installed with a clamping plate, the clamping plate is fixedly installed with a sliding block, the sliding block is provided with a sliding groove, the connecting strip is fixedly installed with an inserting strip, and the inserting strip is inserted into the sliding groove.

[0015] In summary,

[0016] In the application, the outer frame is put into the bottom of the cast-in-place pile by winding and unwinding the rope until the outer frame and the bottom disc are placed on the ground. At this time, the thickness of the sediment layer can be detected and the sediment layer can be simply cleaned by controlling the forward rotation and reverse rotation of the servo motor. When the connecting shaft is counterclockwise rotated by the servo motor, the measuring rod is sent out to detect the thickness of the sediment layer. When the connecting shaft is clockwise rotated, the outer frame is placed on the ground, the servo motor drives the bottom disc to rotate, and the baffle at the bottom end of the bottom disc is inserted into the soil to clean the soil. The inclined baffle will bring the wet soil into the bottom disc for collection when it rotates with the bottom disc. BRIEF DESCRIPTION OF DRAWINGS

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0018] Figure 1 This is a three-dimensional structural diagram of the present application;

[0019] Figure 2 For this application Figure 1 Partial structural diagram;

[0020] Figure 3 This is a partial structural diagram of the chassis of this application;

[0021] Figure 4 This is a schematic diagram of the bottom side structure of the chassis in this application;

[0022] Figure 5 This is a partial structural diagram of the chassis of this application;

[0023] Figure 6 For this application Figure 5 A magnified view of point A;

[0024] Figure 7 This is a partial structural schematic diagram of the measuring rod in this application;

[0025] Figure 8 For this application Figure 4 A magnified view of point B;

[0026] Figure 9 This is a partial structural diagram of the rotating shaft of this application;

[0027] Figure 10 This is a partial structural schematic diagram of the long axis of this application;

[0028] Figure 11 This is a partial structural schematic diagram of the baffle in this application;

[0029] Figure 12 This is a partial structural diagram of the slide bar in this application;

[0030] Figure 13 This is a partial structural diagram of the toggle plate in this application.

[0031] Legend: 1, rope; 2, outer frame; 3, bottom disc; 3.1, clamping groove; 41, servo motor; 42, connecting shaft; 43, middle column; 44, first clamping block; 45, second clamping block; 46, long column; 47, inner disc; 48, screw rod; 49, sliding plate; 51, measuring rod; 52, top disc; 53, damping spring; 61, outer disc; 62, connecting strip; 63, protective cover; 64, rotating shaft; 65, long shaft; 66, convex plate; 67, baffle; 68, sleeve ring; 71, clamping plate; 72, sliding block; 73, insertion strip; 81, rotating plate; 82, blocking strip; 83, push plate; 84, circular wheel; 85, sliding rod. DETAILED DESCRIPTION

[0032] Reference Figures 1-13 As shown in the application, a technical solution is provided: a large-diameter super-long cast-in-place pile detection device, which comprises a rope 1 and an outer frame 2, and the inner bottom end of the outer frame 2 is rotationally installed with a bottom disc 3, the inner top wall of the outer frame 2 is fixedly installed with a servo motor 41, and the output end of the servo motor 41 is fixedly installed with a connecting shaft 42; further comprising: a middle column 43 fixedly installed at the center position of the bottom disc 3, and the center position of the middle column 43 is rotationally installed with an inner disc 47; a long column 46 fixedly installed on the connecting shaft 42; a first clamping block 44 and a second clamping block 45, the first clamping block 44 is fixedly installed on the inner disc 47, and the second clamping block 45 is fixedly installed on the middle column 43; and a baffle 67 rotationally installed on the bottom disc 3, and a through hole is formed in the bottom disc 3, and the baffle 67 is arranged in the through hole.

[0033] Another embodiment of the application: the bottom end of the bottom disc 3 is vertically slidably installed with a connecting strip 62, the bottom end of the connecting strip 62 is fixedly installed with an outer disc 61, and the top end of the bottom disc 3 is fixedly installed with a protective cover 63;

[0034] The baffle 67 is fixedly installed with a rotating shaft 64, the rotating shaft 64 is fixedly installed with a long shaft 65, the long shaft 65 is fixedly installed with a convex plate 66, and the connecting strip 62 is located at the bottom end of the convex plate 66;

[0035] When the outer frame 2 and the bottom disc 3 are lowered through the rope 1, the outer disc 61 at the bottom end of the bottom disc 3 will contact the ground first as the bottom disc 3 contacts the ground, at this time, the outer disc 61 will slide into the bottom disc 3 under pressure, thereby driving the connecting strip 62 to move upward, since the top end of the connecting strip 62 abuts against the bottom end of the convex plate 66, at this time, the upward movement of the connecting strip 62 will push the convex plate 66 to drive the long shaft 65 and the rotating shaft 64 to rotate, at this time, the rotating shaft 64 will drive the baffle 67 to open downward, and since the sediment layer soil is wet and soft, at this time, the baffle 67 will be embedded into the sediment layer downward, so as to facilitate the subsequent collection of the sediment layer soil.

[0036] Another embodiment of the present application: the bottom end of the inner disc 47 is fixedly installed with a screw rod 48, the screw rod 48 is threadedly matched with a sliding plate 49, the sliding plate 49 vertically slides in the middle column 43, and the bottom end of the sliding plate 49 is fixedly installed with a damping spring 53, the bottom end of the damping spring 53 is fixedly installed with a top disc 52, and the bottom end of the top disc 52 is installed with a measuring rod 51.

[0037] Wherein reference Figures 6-7 When the servo motor 41 drives the connecting shaft 42 to rotate counterclockwise, the long column 46 drives the first clamping block 44 to rotate, and the first clamping block 44 drives the inner disc 47 to rotate in the middle column 43, the inner disc 47 drives the screw rod 48 to rotate, and the screw rod 48 drives the sliding plate 49 to move downward, and the sliding plate 49 drives the measuring rod 51 to uniformly descend through the damping spring 53, wherein the pressure sensor is arranged between the measuring rod 51 and the top disc 52, when the bottom end of the measuring rod 51 is inserted into the sediment layer, because the soil of the sediment layer is wet and soft, the pressure received by the measuring rod 51 is relatively stable, until the holding layer is inserted, at this time, the soil of the holding layer is hard, and has a large reaction force on the measuring rod 51, at this time, the pressure received by the pressure sensor will change greatly, at this time, the time when the pressure sensor detects a large pressure change is detected, and the measuring rod 51 uniformly descends, so that the distance can be calculated, and the thickness of the sediment layer is obtained.

[0038] Another embodiment of the present application: the first clamping block 44 and the second clamping block 45 are both in the shape of a right triangle, and the first clamping block 44 and the second clamping block 45 are oppositely arranged;

[0039] When the servo motor 41 drives the connecting shaft 42 to rotate clockwise, the long column 46 drives the second clamping block 45 to move, and the second clamping block 45 drives the middle column 43 to rotate, at this time, the middle column 43 drives the bottom disc 3 to synchronously rotate, and at this time, because the baffle 67 has been opened downward, with the rotation of the bottom disc 3, the soil of the sediment layer enters above the bottom disc 3 through the inclined baffle 67 and the through hole, so as to be conveniently taken away when the outer frame 2 is lifted subsequently.

[0040] Another embodiment of the present application: the baffle 67 is rotatably installed with a cylinder, the cylinder is fixedly installed with a rotating plate 81, one end of the cylinder in the baffle 67 is fixedly installed with a circular wheel 84, the baffle 67 is horizontally slidably installed with a sliding rod 85, and the sliding rod 85 is fixedly installed with a pushing plate 83;

[0041] When the soil in the sediment layer passes the surface of the baffle 67 and enters the outer frame 2, the soil will push the rotating plate 81 to rotate upwards, at this time the rotating plate 81 will drive the circular wheel 84 to rotate through the cylinder, and since the circular wheel 84 is in contact with the sliding rod 85, the sliding rod 85 will be driven to slide through the friction force generated by the rotation of the circular wheel 84, at this time the sliding rod 85 will drive the poking plate 83 to extend from one side of the baffle 67 and extend outward, at this time when the bottom disc 3 drives the baffle 67 to rotate to collect the soil, since the end of the poking plate 83 extending outward is provided with a thickened bevel, when the poking plate 83 pokes the soil, the soil will move inward through the bevel, so that it enters the movement path of the baffle 67, which makes the poking plate 83 poke the soil below the outer frame 2 inward to facilitate the collection of the baffle 67 into the outer frame 2.

[0042] Further, the end of the poking plate 83 extending outward is provided with a thickened bevel, so as to facilitate the soil at the bottom end of the outer frame 2 to be better poked into the movement path of the baffle 67.

[0043] Further, a plurality of tooth blocks are fixedly installed on the circular wheel 84, and a plurality of tooth grooves matched with the tooth blocks are formed on the sliding rod 85, so that the rotation of the circular wheel 84 better drives the sliding rod 85 to move.

[0044] Another embodiment of the present application: two blocking strips 82 are fixedly installed on the baffle 67;

[0045] The two blocking strips 82 are arranged on the upper and lower sides of the rotating plate 81 respectively, so as to limit the opening angle of the rotating plate 81 upwards and downwards.

[0046] Another embodiment of the present application: a clamping groove 3.1 is formed in the inner side wall of the through hole, and the size of the clamping groove 3.1 is matched with the size of the poking plate 83;

[0047] The end of the poking plate 83 close to the measuring rod 51 is provided with a rounded corner;

[0048] When the soil is collected, as the outer frame 2 rises, the outer disc 61 will slide downward under the gravity, so that the connecting strip 62 moves away from the bottom end of the convex plate 66, at the same time, the sleeve ring 68 is fixedly installed on the bottom disc 3, the long shaft 65 is rotatably installed in the sleeve ring 68, and the coil spring is installed between the sleeve ring 68 and the long shaft 65, therefore, when the outer disc 61 drives the connecting strip 62 to descend, the coil spring will drive the long shaft 65 to rotate and reset, so as to drive the baffle 67 to rotate upwards and reset to block the through hole to prevent the soil in the outer frame 2 from falling down;

[0049] When the outer frame 2 moves upward, the soil in the outer frame 2 will slide downward through the baffle 67 and the through hole, at this time, the falling soil will drive the rotating plate 81 to rotate downward, at this time, the rotating plate 81 will drive the poking plate 83 to retract into the baffle 67 through the cylinder, the round wheel 84 and the sliding rod 85, and the end with a round corner of the poking plate 83 will protrude from the surface of the baffle 67, when the baffle 67 rotates into the through hole, the round corner will be in contact with the surface of the through hole to be pressed to drive the poking plate 83 to slide into the baffle 67, so as not to affect the sliding of the baffle 67 into the through hole, and when the baffle 67 rotates into the through hole and cannot move upward any more, the poking plate 83 is aligned with the clamping groove 3.1, and although the surface of the baffle 67 is still inclined downward when the baffle 67 rotates into the through hole, the soil in the outer frame 2 will still slide downward along the baffle 67, at this time, the soil will again drive the rotating plate 81 to rotate downward, at this time, the rotating plate 81 will again drive the poking plate 83 to move towards the clamping groove 3.1, until the poking plate 83 is inserted into the clamping groove 3.1, at this time, the poking plate 83 will lock in the clamping groove 3.1 to limit the downward movement of the baffle 67.

[0050] Another embodiment of the present application: the clamping groove 3.1 is horizontally slidably provided with a clamping plate 71, and the clamping plate 71 is fixedly provided with a sliding block 72, the sliding block 72 is provided with a sliding groove, and the connecting strip 62 is fixedly provided with an insertion strip 73, and the insertion strip 73 is inserted into the sliding groove;

[0051] The sliding groove is composed of a vertical groove and an inclined groove, when the insertion strip 73 rises along with the connecting strip 62, the insertion strip 73 will first move upward in the inclined groove, at this time, the insertion strip 73 will drive the clamping plate 71 to move outward through the inclined groove, until the outer surface of the clamping plate 71 is attached to the surface of the through hole, at this time, when the baffle 67 is opened, the clamping plate 71 will also block the clamping groove 3.1, so as to avoid the soil from entering and causing blockage, and when the clamping plate 71 moves outward, the poking plate 83 will also be pushed out, and when the insertion strip 73 moves downward, the clamping plate 71 will be driven to move inward through the inclined groove, at this time, the clamping groove 3.1 is opened to facilitate the subsequent entry of the poking plate 83 into the clamping groove 3.1.

[0052] The above only describes certain exemplary embodiments of the present application by way of illustration, and it is needless to say that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present application. Therefore, the above drawings and descriptions are illustrative in nature and should not be understood as limiting the scope of protection of the claims of the present application.

Claims

1. A large-diameter super-long cast-in-place pile detection device, comprising a take-up and pay-off rope (1) and an outer frame (2), characterized in that: The inner side bottom end of the outer frame (2) is rotationally installed with a chassis (3), the inner top wall of the outer frame (2) is fixedly installed with a servo motor (41), and the output end of the servo motor (41) is fixedly installed with a connecting shaft (42); Also includes: A center column (43) is fixedly installed at the center position of the chassis (3), and the center position of the center column (43) is rotationally installed with an inner disc (47); A long column (46) is fixedly installed on the connecting shaft (42); A first clamping block (44) and a second clamping block (45) are fixedly installed on the inner disc (47) and the center column (43) respectively; A baffle (67) is rotationally installed on the chassis (3), a through hole is formed in the chassis (3), and the baffle (67) is arranged in the through hole; The bottom end of the inner disc (47) is fixedly installed with a screw rod (48), the screw rod (48) is threadedly connected with a sliding plate (49), the sliding plate (49) vertically slides in the center column (43), the bottom end of the sliding plate (49) is fixedly installed with a damping spring (53), the bottom end of the damping spring (53) is fixedly installed with a top disc (52), and the bottom end of the top disc (52) is installed with a measuring rod (51); A pressure sensor is arranged between the measuring rod (51) and the top disc (52); When the servo motor (41) drives the connecting shaft (42) to rotate counterclockwise, the long column (46) drives the first clamping block (44) to rotate at this time; When the servo motor (41) drives the connecting shaft (42) to rotate clockwise, the long column (46) drives the second clamping block (45) to move at this time.

2. The detection device for large-diameter super-long cast-in-place piles according to claim 1, characterized in that: The bottom end of the chassis (3) is vertically and slidably installed with a connecting strip (62), the bottom end of the connecting strip (62) is fixedly installed with an outer disc (61), and the top end of the chassis (3) is fixedly installed with a protective cover (63); The baffle (67) is fixedly installed with a rotating shaft (64), the rotating shaft (64) is fixedly installed with a long shaft (65), the long shaft (65) is fixedly installed with a convex plate (66), and the connecting strip (62) is located at the bottom end of the convex plate (66).

3. The detection device for large-diameter super-long cast-in-place piles according to claim 2, characterized in that: The first clamping block (44) and the second clamping block (45) are both in the shape of a right triangle, and the first clamping block (44) and the second clamping block (45) are oppositely arranged.

4. The detection device for large-diameter super-long cast-in-place piles according to claim 3, characterized in that: A cylinder is rotationally installed in the baffle (67), a rotating plate (81) is fixedly installed on the cylinder, a circular wheel (84) is fixedly installed at one end of the cylinder in the baffle (67), and a sliding rod (85) is horizontally slidably installed in the baffle (67). A pushing plate (83) is fixedly installed on the sliding rod (85).

5. The detection device for large-diameter super-long cast-in-place piles according to claim 4, characterized in that: Two blocking strips (82) are fixedly installed on the baffle (67).

6. The detection device for large-diameter super-long cast-in-place piles according to claim 5, characterized in that: A clamping groove (3.1) is formed in the inner side wall of the through hole, and the size of the clamping groove (3.1) is matched with the size of the pushing plate (83); One end of the pushing plate (83) close to the measuring rod (51) is provided with a rounded corner.

7. The device for testing a large-diameter super-long cast-in-place pile according to claim 6, characterized in that: The clamping groove (3.1) is horizontally slidably installed with a clamping plate (71), and the clamping plate (71) is fixedly installed with a sliding block (72), and the sliding block (72) is provided with a sliding groove; the connecting strip (62) is fixedly installed with an inserting strip (73), and the inserting strip (73) is inserted into the sliding groove.

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