Pile foundation static load detection auxiliary precast pile cap

Abstract

The application discloses a pile foundation static load detection auxiliary prefabricated pile cap, and relates to the field of pile foundation static load detection. The pile foundation static load detection auxiliary prefabricated pile cap comprises a protection arm barrel, two clamping mechanisms for clamping a pile foundation head are arranged on the side of the protection arm barrel, two symmetrical chiseling mechanisms are arranged below the protection arm barrel, and a linkage mechanism for pushing the two chiseling mechanisms downward is arranged on the bottom surface of the protection arm barrel. The pile foundation static load detection auxiliary prefabricated pile cap can directly place a high-strength pile cap after quick polishing, is convenient and fast, reduces the processing cost of the pile cap, improves the detection efficiency, reduces the working strength of workers, can be adjusted according to pile foundations with different diameters, has high adaptability, and is low in flexibility during use and can be repeatedly used.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of pile foundation static load detection, in particular to a pile foundation static load detection auxiliary prefabricated pile cap. BACKGROUND

[0002] Pile foundation static load detection usually includes three types of single pile vertical compression static load test, single pile vertical compression static load test and single pile horizontal static load test, the test method close to the actual working condition of vertical compression pile is used to determine the vertical ultimate bearing capacity of single pile as the design basis, or to sample test and evaluate the bearing capacity of engineering pile, pile foundation static load test technology develops with the increasing use of pile foundation in building design, pile foundation static load test is a technology used in engineering to detect the bearing capacity of pile foundation, in determining the ultimate bearing capacity of single pile, it is the most accurate and reliable test method, as the basis for determining whether a certain dynamic load test method is mature, the comparison error of static load test results is used as the basis.

[0003] After searching, the publication number CN112814051B discloses a pile foundation static load detection supervision system, which can quickly adapt the position of the lifting clamp to the adjustable ballast weight, thereby improving the assembly rate and being convenient to use. However, the device is cumbersome and difficult to handle the pile cap, after the completion of the pile foundation static load detection construction, the detected pile is extracted and the pile head is specially treated, the treatment process is as follows: first, the floating slurry on the pile head is chiseled off until the dense concrete layer is reached, then a horizontal pile cap is poured at the end of the pile head using grouting material, and the hydraulic jacking column used in pile foundation static load detection is placed on the horizontal pile cap, the preparation steps of pile foundation static load detection are cumbersome and time-consuming, and there are multiple pile foundations to be detected on the engineering site, thereby affecting the subsequent engineering progress and wasting a lot of manpower and funds, on the other hand, when the pile cap is made on the construction site, the pile cap prefabricated part is placed at the pile head position and high-strength cement is poured on the pile cap prefabricated part, but the size of the pile cap prefabricated part is fixed, making it difficult for construction personnel to adjust the size of the pile cap prefabricated part according to different diameters of the pile foundation, so that the flexibility of the pile cap prefabricated part is low when used. Therefore, we provide a pile foundation static load detection auxiliary prefabricated pile cap to solve the above problems. SUMMARY

[0004] The purpose of the present application is to make up for the shortcomings of the prior art, and to provide a pile foundation static load detection auxiliary prefabricated pile cap, which comprises an arm protection cylinder, two clamping mechanisms for clamping the pile head are arranged on the side of the arm protection cylinder, two symmetrical chiseling mechanisms are arranged below the arm protection cylinder, and a linkage mechanism for pushing the two chiseling mechanisms downward is arranged on the bottom surface of the arm protection cylinder.

[0005] Preferably, the inside of the arm protection cylinder is provided with a high-strength pile cap, the upper part and the side of the arm protection cylinder are fixed with lifting rings, the outer surface of the high-strength pile cap is fixedly connected with two sliding blocks, the inner wall of the arm protection cylinder is fixedly connected with two limiting rods two, the two sliding blocks are respectively in sliding connection with the two limiting rods two, when using the device, first lift the high-strength pile cap and the arm protection cylinder through the lifting ropes, and the high-strength pile cap is located at the uppermost end of the arm protection cylinder when being lifted, after fixing the arm protection cylinder and the pile head through the clamping mechanism, loosen the ropes lifting the high-strength pile cap, the high-strength pile cap will move downward under its own gravity, the high-strength pile cap is mainly composed of spiral hoop, longitudinal reinforcement and steel mesh, the upper part and the lower part are fixed by multi-layer steel mesh, which increases the compressive resistance of the high-strength pile cap, and the setting of the sliding block and the high-strength pile cap increases the stability of the high-strength pile cap when moving up and down.

[0006] Preferably, the clamping mechanism comprises two top pressing rods and two groups of limiting rods one, each group of the limiting rods one is two in number, and each limiting rod one is fixedly connected to the outer surface of the arm protection cylinder, the two groups of limiting rods one are respectively in sliding connection with the two top pressing rods, the lower part of each top pressing rod is fixedly connected with an anti-skid pad, the setting of the limiting rod one increases the stability of the top pressing rod when moving, and the anti-skid pad has anti-skid lines on the surface, which increases the friction between the anti-skid pad and the pile head.

[0007] Preferably, the clamping mechanism further comprises a hydraulic push rod, the hydraulic push rod is fixedly connected to the outer surface of the arm protection cylinder, the telescopic end of the hydraulic push rod is fixedly connected with a movable plate, the outer surface of the movable plate is fixedly connected with two fixed slides, the two fixed slides are fixedly connected to the outer surface of the arm protection cylinder, the outer surface of the movable plate is hingedly connected with two hinged rods through a pin shaft, the ends of the two hinged rods away from the movable plate are respectively hingedly connected with the two top pressing rods through pin shafts, the two hydraulic push rods are controlled to be started at the same time, the hydraulic push rod drives the movable plate to move downward, the movable plate drives the top pressing rod to move close to the pile head through the hinged rod, so that the four anti-skid pads clamp the position of the pile head, the arm protection cylinder is fixed with the pile foundation, so that the device can be adjusted according to pile foundations of different diameters, and the device has high adaptability, so that the flexibility of the device when in use is low.

[0008] Preferably, the linkage mechanism comprises a motor fixed on the arm protection cylinder, the output end of the motor is fixed with a main gear, the outer surface of the arm protection cylinder is rotatably connected with a main gear ring, the main gear is engaged with the main gear ring, the lower part of the main gear ring is fixedly connected with two telescopic sleeve rods, the ends of the two telescopic sleeve rods away from the main gear ring are fixed with arc-shaped sliding plates, the motor is controlled to drive the main gear to rotate, the rotation of the main gear drives the rotation of the main gear ring, the rotation of the main gear ring drives the rotation of the arc-shaped sliding plate through the telescopic sleeve rod, and the telescopic sleeve rod has telescopic property.

[0009] Preferably, the linkage mechanism further comprises a bevel gear ring plate, the upper surface of the bevel gear ring plate is fixedly connected with an annular slide bar, the two arc-shaped slide plates are in sliding connection with the annular slide bar, the outer surface of the bevel gear ring plate is provided with eight elastic components arranged in a circumferential array, the elastic component comprises a fixed plate one fixed on the arm protection cylinder and a fixed plate two fixed on the bevel gear ring plate, the upper portion of the fixed plate two is fixedly connected with a limiting rod three, the limiting rod three is in sliding connection with the fixed plate one, the outer surface of the limiting rod three is sleeved with a telescopic spring one, the telescopic spring one is fixedly connected between the fixed plate one and the fixed plate two, when the static load of the pile foundation is detected, the two chiseling mechanisms are driven to rotate by starting the motor, the two chiseling rollers and the two chiseling plates break and chisel off the float mud on the pile head, and the two chiseling mechanisms are pushed down by the elastic force of the eight telescopic springs one, so that the float mud on the pile head is completely chiseled off.

[0010] Preferably, the chiseling mechanism comprises a chiseling plate, a rotating tube rotating on the arc-shaped slide plate and two L-shaped plates fixed on the arc-shaped slide plate, the outer surface of the rotating tube is fixedly connected with a bevel gear, the bevel gear is in engagement with the bevel gear ring plate, the inside of the rotating tube is provided with a chiseling roller, the inner wall of the rotating tube is fixedly connected with three straight slide bars, the three straight slide bars are in sliding connection with the chiseling roller, the end of the chiseling roller away from the arc-shaped slide plate is rotatably connected with a bearing plate, when the motor drives the main gear to rotate, the main gear drives the main gear ring to rotate, the main gear ring drives the arc-shaped slide plate to move on the annular slide bar through the telescopic sleeve rod, so that the two arc-shaped slide plates rotate around the pile head, since the bevel gear is in engagement with the bevel gear ring plate, when the arc-shaped slide plate rotates around the pile head, the bevel gear drives the rotating tube to rotate, the rotating tube drives the chiseling roller to rotate through the three straight slide bars, the chiseling roller rotates to chisel and polish the top of the pile head, and the chiseling roller can slide in the rotating tube.

[0011] Preferably, the upper portion of the bearing plate is fixedly connected with two pressure receiving inclined plates, the two pressure receiving inclined plates are matched with the high-strength pile cap, one side of the bearing plate close to the rotating tube is fixedly connected with two limiting rods four, the two limiting rods four are in sliding connection with the two L-shaped plates respectively, the outer surfaces of the two limiting rods four are sleeved with telescopic springs two, one end of the two telescopic springs two is fixedly connected with the bearing plate, the other end of the two telescopic springs two is fixedly connected with the two L-shaped plates respectively, when the high-strength pile cap moves downward and contacts with the pile head, the high-strength pile cap extrudes the two pressure receiving inclined plates on the two sides due to its own gravity, so that the two chiseling mechanisms are away from each other, so that the high-strength pile cap is stacked on the pile head, after the high-strength pile cap is pulled upward by the lifting rope, the pressure receiving inclined plates are not pressed, the bearing plate is reset by the spring pressure of the telescopic springs two, so that the two chiseling rollers are close to each other, and the device is reset for next use.

[0012] Preferably, the upper side of the chiseling plate is fixedly connected with two fixed blocks, the outer surfaces of the two fixed blocks are fixedly connected with limiting rods five, the two limiting rods five are slidably connected with the bearing plate, the ends of the two limiting rods five away from the fixed blocks are fixedly connected with baffles matched with the bearing plate, the outer surfaces of the two limiting rods five are sleeved with telescopic springs three, one end of each of the two telescopic springs three is fixedly connected with the bearing plate, and the ends of the two telescopic springs three away from the bearing plate are fixedly connected with the two baffles respectively.

[0013] Preferably, the two sides of the chiseling plate are fixedly connected with cleaning long brushes, the end of the chiseling roller close to the bearing plate is fixedly connected with three arc-shaped extrusion blocks two arranged in a circumferential array, the upper side of the chiseling plate is fixedly connected with arc-shaped extrusion blocks one matched with the arc-shaped extrusion blocks two, and the lower side of the chiseling plate and the outer surface of the chiseling roller are provided with a plurality of crushing cones.

[0014] Compared with the prior art, the pile foundation static load detection auxiliary prefabricated pile cap has the following beneficial effects:

[0015] Firstly, the high-strength pile cap, the linkage mechanism and the chiseling mechanism are arranged, when the pile foundation is subjected to static load detection, the two chiseling mechanisms are driven to rotate by the motor, the two chiseling rollers and the two chiseling plates crush and chisel off the float mud on the pile head, the two chiseling mechanisms are pushed downward by the elastic force of the eight telescopic springs one, so that the float mud on the pile head is completely chiseled off, the pile head top is polished flat by the continuous rotation of the two chiseling rollers and the two chiseling plates, then the high-strength pile cap is directly placed on the polished pile head, and the hydraulic jacking column used in the pile foundation static load detection is placed on the high-strength pile cap.

[0016] Secondly, the application is provided with a clamping mechanism, a high-strength pile cap and a chiseling mechanism. When detecting pile foundations with different diameters, two hydraulic push rods are controlled to start at the same time, four top pressing rods are driven by four anti-skid pads to clamp the pile head, when the high-strength pile cap moves downward and contacts the pile head, the high-strength pile cap is pressed by the gravity to press the two side pressure inclined plates to make the two chiseling mechanisms move away from each other, so that the high-strength pile cap is stacked on the pile head, and the high-strength pile cap is installed with the pile head by the cooperation of the four anti-skid pads, so that the device can be adjusted according to pile foundations with different diameters, and has high adaptability, so that the flexibility of the device is low when used, and the device can be repeatedly used. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a whole three-dimensional structure schematic diagram of the application;

[0018] Figure 2 It is a split structure schematic diagram of the application;

[0019] Figure 3 It is a three-dimensional structure schematic diagram when clamping the pile head;

[0020] Figure 4 It is a three-dimensional structure schematic diagram after the high-strength pile cap is pressed;

[0021] Figure 5 It is a three-dimensional structure schematic diagram of the clamping mechanism;

[0022] Figure 6 It is a three-dimensional structure schematic diagram when the linkage mechanism and the chiseling mechanism cooperate;

[0023] Figure 7 It is a three-dimensional structure schematic diagram of the linkage mechanism;

[0024] Figure 8 It is a three-dimensional structure schematic diagram of the chiseling mechanism;

[0025] Figure 9 It is a split structure schematic diagram of the chiseling mechanism;

[0026] Figure 10 It is a three-dimensional structure schematic diagram of the arc-shaped extrusion block two;

[0027] Figure 11 It is a three-dimensional structure schematic diagram of the arc-shaped extrusion block one.

[0028] In the figure:

[0029] 1, arm protection cylinder;

[0030] 2, clamping mechanism; 201, hydraulic push rod; 202, movable plate; 203, fixed slide; 204, top pressure rod; 205, limit rod one; 206, non-slip pad; 207, articulated rod;

[0031] 3, high-strength pile cap; 4, sliding block; 5, limit rod two;

[0032] 6, linkage mechanism; 601, motor; 602, main gear; 603, main gear ring; 604, fixed plate one; 605, fixed plate two; 606, limit rod three; 607, extension spring one; 608, bevel gear ring plate; 609, annular slide; 610, arc-shaped slide plate; 611, telescopic sleeve rod;

[0033] 7, chiseling mechanism; 701, rotating tube; 702, bevel gear; 703, chisel roller; 704, straight slide; 705, bearing plate; 706, pressure inclined plate; 707, limit rod four; 708, extension spring two; 709, L-shaped plate; 710, chisel plate; 711, long cleaning brush; 712, fixed block; 713, limit rod five; 714, baffle; 715, extension spring three; 716, arc-shaped extrusion block one; 717, arc-shaped extrusion block two. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0035] Embodiment one:

[0036] Please refer to Figure 1 and Figure 2 The present application provides a technical solution: a pile foundation static load detection auxiliary prefabricated pile cap, comprising an arm protection cylinder 1, comprising an arm protection cylinder 1, the side of the arm protection cylinder 1 is provided with two clamping mechanisms 2 for clamping the pile head, the lower part of the arm protection cylinder 1 is provided with two symmetrical chiseling mechanisms 7, and the bottom surface of the arm protection cylinder 1 is provided with a linkage mechanism 6 for pushing down the two chiseling mechanisms 7.

[0037] Please refer to Figure 3 and Figure 5The inside of the arm protection barrel 1 is provided with a high-strength pile cap 3, the upper part of the high-strength pile cap 3 and the side of the arm protection barrel 1 are fixedly provided with lifting rings, the outer surface of the high-strength pile cap 3 is fixedly connected with two sliding blocks 4, the inner wall of the arm protection barrel 1 is fixedly provided with two limiting rods two 5, the two sliding blocks 4 are slidably connected with the two limiting rods two 5 respectively, when the device is used, the high-strength pile cap 3 and the arm protection barrel 1 are lifted up at the same time through the lifting ropes, and the high-strength pile cap 3 is located at the uppermost end of the arm protection barrel 1 when being lifted up, after the arm protection barrel 1 and the pile head are fixed through the clamping mechanism 2, the rope lifting the high-strength pile cap 3 is loosened, the high-strength pile cap 3 will move downward under its own gravity, the high-strength pile cap 3 is mainly composed of spiral hoop, longitudinal reinforcement and steel mesh, the upper part and the lower part are fixed by binding with multiple layers of steel mesh, so as to increase the compressive resistance of the high-strength pile cap 3, through the arrangement of the sliding block 4 and the high-strength pile cap 3, the stability of the high-strength pile cap 3 when moving up and down is increased.

[0038] The clamping mechanism 2 comprises two top pressing rods 204 and two groups of limiting rods one 205, the number of each group of limiting rods one 205 is two, and each limiting rod one 205 is fixedly connected to the outer surface of the arm protection barrel 1, the two groups of limiting rods one 205 are slidably connected with the two top pressing rods 204, the lower part of each top pressing rod 204 is fixedly provided with an anti-skid pad 206, through the arrangement of the limiting rod one 205, the stability of the top pressing rod 204 when moving is increased, the anti-skid pad 206 has anti-skid lines on the surface, so as to increase the friction between the anti-skid pad 206 and the pile head.

[0039] The clamping mechanism 2 further comprises a hydraulic push rod 201, the hydraulic push rod 201 is fixedly connected to the outer surface of the arm protection barrel 1, the telescopic end of the hydraulic push rod 201 is fixedly connected with a movable plate 202, the outer surface of the movable plate 202 is fixedly connected with two fixed slides 203, the two fixed slides 203 are fixedly connected to the outer surface of the arm protection barrel 1, the outer surface of the movable plate 202 is hingedly connected with two hinged rods 207 through a pin shaft, the ends of the two hinged rods 207 away from the movable plate 202 are respectively hingedly connected with the two top pressing rods 204 through pin shafts, the two hydraulic push rods 201 are controlled to be started at the same time, the hydraulic push rod 201 drives the movable plate 202 to move downward, so that the movable plate 202 drives the top pressing rod 204 to move close to the pile head through the hinged rod 207, so that the four anti-skid pads 206 clamp the position of the pile head, so that the arm protection barrel 1 is fixed with the pile foundation, so that the device can be adjusted according to pile foundations with different diameters, so that the device has high adaptability, so that the flexibility of the device when used is low.

[0040] Embodiment two:

[0041] Please refer to Figure 4 , Figure 6 and Figure 7The linkage mechanism 6 comprises a motor 601 fixed on the arm protection barrel 1, an output end of the motor 601 is fixed with a main gear 602, an outer surface of the arm protection barrel 1 is rotationally connected with a main gear ring 603, the main gear 602 is engaged with the main gear ring 603, the main gear ring 603 is fixedly connected with two telescopic sleeve rods 611 below, one end of the two telescopic sleeve rods 611 away from the main gear ring 603 is fixed with an arc-shaped sliding plate 610, the control motor 601 drives the main gear 602 to rotate, the main gear 602 rotates to drive the main gear ring 603 to rotate, the main gear ring 603 rotates to drive the arc-shaped sliding plate 610 to rotate through the telescopic sleeve rods 611, and the telescopic sleeve rods 611 have telescopic property.

[0042] The linkage mechanism 6 further comprises a bevel gear ring plate 608, an upper surface of the bevel gear ring plate 608 is fixedly connected with an annular sliding strip 609, the two arc-shaped sliding plates 610 are slidingly connected with the annular sliding strip 609, and eight elastic assemblies in circumferential array are arranged on an outer surface of the bevel gear ring plate 608, the elastic assembly comprises a fixed plate one 604 fixed on the arm protection barrel 1 and a fixed plate two 605 fixed on the bevel gear ring plate 608, a limiting rod three 606 is fixedly connected above the fixed plate two 605, the limiting rod three 606 is slidingly connected with the fixed plate one 604, a telescopic spring one 607 is sleeved on an outer surface of the limiting rod three 606, and the telescopic spring one 607 is fixedly connected between the fixed plate one 604 and the fixed plate two 605.

[0043] Embodiment three:

[0044] Please refer to Figure 8 and Figure 9The chiseling mechanism 7 comprises a chiseling plate 710, a rotating pipe 701 rotating on the arc-shaped slide plate 610, and two L-shaped plates 709 fixed on the arc-shaped slide plate 610, the outer surface of the rotating pipe 701 is fixedly connected with a bevel gear 702, the bevel gear 702 is engaged with the bevel gear ring plate 608, the inside of the rotating pipe 701 is provided with a chiseling roller 703, the inner wall of the rotating pipe 701 is fixedly connected with three straight slide bars 704, the three straight slide bars 704 are all in sliding connection with the chiseling roller 703, the end of the chiseling roller 703 away from the arc-shaped slide plate 610 is rotatably connected with a bearing plate 705, when the motor 601 drives the main gear 602 to rotate, the main gear 602 drives the main gear ring 603 to rotate, the main gear ring 603 drives the arc-shaped slide plate 610 to move on the annular slide bar 609 through the telescopic sleeve rod 611, so that the two arc-shaped slide plates 610 rotate around the pile head, since the bevel gear 702 is engaged with the bevel gear ring plate 608, when the arc-shaped slide plate 610 rotates around the pile head, the bevel gear 702 drives the rotating pipe 701 to rotate, the rotating pipe 701 drives the chiseling roller 703 to rotate through the three straight slide bars 704, the chiseling roller 703 rotates to chisel and polish the top of the pile head, and meanwhile the chiseling roller 703 can slide in the rotating pipe 701.

[0045] The upper side of the bearing plate 705 is fixedly connected with two pressure receiving inclined plates 706, the two pressure receiving inclined plates 706 are all matched with the high-strength pile cap 3, one side of the bearing plate 705 close to the rotating pipe 701 is fixedly connected with two limiting rods four 707, the two limiting rods four 707 are respectively in sliding connection with the two L-shaped plates 709, the outer surfaces of the two limiting rods four 707 are all sleeved with telescopic springs two 708, one end of each of the two telescopic springs two 708 is fixed to the bearing plate 705, and the other end of each of the two telescopic springs two 708 is fixed to the two L-shaped plates 709, when the high-strength pile cap 3 moves downward and contacts with the pile head, the high-strength pile cap 3 is pressed by its own gravity to press the two pressure receiving inclined plates 706, so that the two chiseling mechanisms 7 are away from each other, so that the high-strength pile cap 3 is stacked on the pile head, after the high-strength pile cap 3 is pulled upward by the lifting rope, the pressure receiving inclined plates 706 are not pressed, the bearing plate 705 is reset by the spring pressure of the telescopic springs two 708, so that the two chiseling rollers 703 are close to each other, and the device is reset for next use, the device is convenient and fast in the way of directly placing the high-strength pile cap 3 after quick polishing, the processing cost of the pile cap is reduced, the detection efficiency is improved, and the working strength of the workers is reduced.

[0046] Please refer to Figure 10 and Figure 11The upper side of the chiseling plate 710 is fixedly connected with two fixed blocks 712, the outer surfaces of the two fixed blocks 712 are fixedly connected with limiting rods five 713, the two limiting rods five 713 are slidably connected with the bearing plate 705, the ends of the two limiting rods five 713 away from the fixed blocks 712 are fixedly connected with baffles 714 matched with the bearing plate 705, the outer surfaces of the two limiting rods five 713 are sleeved with telescopic springs three 715, one end of each of the two telescopic springs three 715 is fixedly connected with the bearing plate 705, and the ends of the two telescopic springs three 715 away from the bearing plate 705 are fixedly connected with the two baffles 714 respectively. Through the arrangement of the cleaning long brushes 711, when the arc-shaped sliding plate 610 rotates around the pile head, the two cleaning long brushes 711 are driven to clean the broken stones on the top of the pile head, so that the end surface of the pile head is kept clean, and the high-strength pile cap 3 is facilitated to contact the pile head.

[0047] The two sides of the chiseling plate 710 are fixedly connected with the cleaning long brushes 711, one end of the chiseling roller 703 close to the bearing plate 705 is fixedly connected with three arc-shaped extrusion blocks two 717 arranged in a circumferential array, the upper side of the chiseling plate 710 is fixedly connected with arc-shaped extrusion blocks one 716 matched with the arc-shaped extrusion blocks two 717, and the lower side of the chiseling plate 710 and the outer surface of the chiseling roller 703 are provided with a plurality of crushing cones. When the chiseling roller 703 rotates, the three arc-shaped extrusion blocks two 717 continuously extrude the arc-shaped extrusion blocks one 716, the chiseling plate 710 is reset under the spring pressure of the two telescopic springs three 715, so that the chiseling plate 710 reciprocates to polish and chisel the pile head, the chiseling area of the device on the pile head is increased, and dead angles are avoided.

[0048] Working principle: when in use, as shown in Figure 1 , the high-strength pile cap 3 and the arm protection barrel 1 are lifted by a crane, the device is moved to a pile foundation position, the four anti-skid pads 206 are located outside the pile head, as shown in Figure 3 , the device is pressed downward on the top of the pile head under the action of its own gravity, then the two hydraulic push rods 201 are simultaneously controlled to start, the hydraulic push rods 201 drive the movable plates 202 to move downward, the movable plates 202 drive the pressing rods 204 to approach the pile head through the hinged rods 207, so that the four anti-skid pads 206 clamp the position of the pile head, and the arm protection barrel 1 is fixed with the pile foundation.

[0049] Then the motor 601 is controlled to drive the main gear 602 to rotate, the main gear 602 drives the main gear ring 603 to rotate, the main gear ring 603 drives the arc-shaped sliding plate 610 to move on the annular sliding bar 609 through the telescopic sleeve rod 611, so that the two arc-shaped sliding plates 610 rotate around the pile head, and when the arc-shaped sliding plate 610 rotates around the pile head, the bevel gear 702 drives the rotating pipe 701 to rotate through the meshing with the bevel gear ring plate 608, the rotating pipe 701 drives the chisel roller 703 to rotate through the three straight sliding bars 704, and the chisel roller 703 rotates to chisel and polish the top of the pile head, and when the chisel roller 703 rotates, the three arc-shaped extrusion blocks two 717 continuously extrude the arc-shaped extrusion block one 716, so that the chisel plate 710 reciprocates to polish and chisel the pile head, and the bevel gear ring plate 608 is pushed downward by the spring pressure of the eight telescopic springs one 607 to drive the two chisel mechanisms 7, so that the two chisel rollers 703 and the two chisel plates 710 continuously polish downward, increase the chiseling area of the device on the pile head, avoid the dead angle of cleaning, and completely chisel off the float mud on the pile head.

[0050] As shown in Figure 4 the drawing, the hanging rope on the high-strength pile cap 3 is loosened, and then the high-strength pile cap 3 moves downward to contact the pile head, the high-strength pile cap 3 extrudes the two side pressure inclined plates 706 under the action of its own gravity to make the two chisel mechanisms 7 move away from each other, so that the high-strength pile cap 3 is stacked on the pile head, and the four anti-skid pads 206 are clamped to make the high-strength pile cap 3 installed with the pile head, so that the device can be adjusted according to pile foundations of different diameters, and the device has high adaptability, so that the flexibility of the device in use is low, the hydraulic jacks used in the static load test of the pile foundation are placed on the high-strength pile cap 3, the high-strength pile cap 3 is placed directly through the way of fast polishing, which is convenient and fast, reduces the processing cost of the pile cap, improves the detection efficiency, and reduces the working intensity of the workers.

[0051] It will be obvious to a person skilled in the art that, without departing from the spirit or essential characteristics of the application, the present application can be implemented in other specific forms. The present examples are therefore to be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the description given above, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference signs in the claims should not be construed as limiting the scope of the claims.

Claims

1. A pile foundation static load detection auxiliary precast pile cap, comprising an arm protection cylinder (1), characterized in that: The arm guard tube (1) includes two clamping mechanisms (2) for clamping the pile foundation head on the side of the arm guard tube (1), and a linkage mechanism (6) for pushing the two chiseling mechanisms (7) downward is provided on the bottom surface of the arm guard tube (1), and the linkage mechanism (6) includes a motor (601) fixed on the arm guard tube (1), a main gear (602) is fixed to the output end of the motor (601), and a main gear ring (603) is rotatably connected to the outer surface of the arm guard tube (1), the main gear (602) is meshed with the main gear ring (603), and the lower part of the main gear ring (603) is fixedly connected to the main gear ring (603). Two telescopic sleeve rods (611) are connected, and an arc-shaped slide plate (610) is fixed at one end of the two telescopic sleeve rods (611) away from the main gear ring (603). The linkage mechanism (6) also includes a conical gear ring plate (608), and the upper surface of the conical gear ring plate (608) is fixedly connected to an annular slide bar (609). The two arc-shaped slide plates (610) are slidably connected to the annular slide bar (609). The outer surface of the conical gear ring plate (608) is provided with eight elastic components in a circumferential array. The elastic components include a fixing plate (604) fixed on the arm guard tube (1) and a fixing plate (604) fixed on the conical gear ring plate ( The fixing plate 2 (605) is fixedly connected to the fixing plate 2 (608), the limiting rod 3 (606) is fixedly connected to the upper side of the fixing plate 2 (605), the limiting rod 3 (606) is slidably connected to the fixing plate 1 (604), the outer surface of the limiting rod 3 (606) is provided with a telescopic spring 1 (607), the telescopic spring 1 (607) is fixedly connected between the fixing plate 1 (604) and the fixing plate 2 (605), and two symmetrical chiseling mechanisms (7) are provided below the arm guard tube (1), the chiseling mechanism (7) includes a chiseling plate (710), a rotating plate rotating on the arc slide (610), and a rotating plate (711) rotating on the arc slide (611). The rotating tube (701) and two L-shaped plates (709) fixed on the arc-shaped slide (610) are provided. The outer surface of the rotating tube (701) is fixedly connected with a bevel gear (702), and the bevel gear (702) is meshed with the bevel gear ring plate (608). A chiseling roller (703) is provided inside the rotating tube (701). Three straight sliding bars (704) are fixedly connected to the inner wall of the rotating tube (701). The three straight sliding bars (704) are all slidably connected to the chiseling roller (703). The chiseling roller (703) is rotatably connected to a bearing plate (705) at one end away from the arc-shaped slide (610).

2. The pile foundation static load detection auxiliary precast pile cap according to claim 1, characterized in that: A high-strength pile cap (3) is provided inside the arm guard tube (1), and a lifting ring is fixed on the top of the high-strength pile cap (3) and the side of the arm guard tube (1). Two sliding blocks (4) are fixedly connected to the outer surface of the high-strength pile cap (3), and two limiting rods (5) are fixed to the inner wall of the arm guard tube (1), and the two sliding blocks (4) are respectively slidably connected to the two limiting rods (5).

3. The pile foundation static load detection auxiliary precast pile cap according to claim 1, characterized in that: The clamping mechanism (2) comprises two top pressing rods (204) and two groups of limiting rods (205), the number of each group of the limiting rods (205) is two, each limiting rod (205) is fixedly connected to the outer surface of the arm protection barrel (1), and the two groups of limiting rods (205) are slidably connected with the two top pressing rods (204), and the lower portion of each of the two top pressing rods (204) is fixedly connected with an antiskid pad (206).

4. The precast pile cap for static load testing of a pile foundation according to claim 3, characterized in that: The clamping mechanism (2) further comprises a hydraulic push rod (201), the hydraulic push rod (201) is fixedly connected to the outer surface of the arm protection barrel (1), the telescopic end of the hydraulic push rod (201) is fixedly connected with a movable plate (202), the outer surface of the movable plate (202) is fixedly connected with two fixed slides (203), the two fixed slides (203) are fixedly connected to the outer surface of the arm protection barrel (1), and the outer surface of the movable plate (202) is hingedly connected with two hinge rods (207) through a pin shaft, and the ends, away from the movable plate (202), of the two hinge rods (207) are respectively hingedly connected with the two top pressing rods (204) through pin shafts.

5. The pile foundation static load detection auxiliary precast pile cap according to claim 2, characterized in that: The upper portion of the bearing plate (705) is fixedly connected with two pressure receiving inclined plates (706), the two pressure receiving inclined plates (706) are matched with the high-strength pile cap (3), one side of the bearing plate (705) is fixedly connected with two limiting rods (707), the two limiting rods (707) are slidably connected with two L-shaped plates (709), the outer surfaces of the two limiting rods (707) are both sleeved with telescopic springs (708), one end of each of the two telescopic springs (708) is fixedly connected with the bearing plate (705), and the ends, away from the bearing plate (705), of the two telescopic springs (708) are respectively fixedly connected with the two L-shaped plates (709).

6. The prefabricated pile cap for auxiliary static load detection of pile foundation according to claim 1, characterized in that: The upper portion of the chiseling plate (710) is fixedly connected with two fixed blocks (712), the outer surfaces of the two fixed blocks (712) are both fixedly connected with limiting rods (713), the two limiting rods (713) are slidably connected with the bearing plate (705), the ends, away from the fixed blocks (712), of the two limiting rods (713) are both fixedly connected with baffle plates (714) matched with the bearing plate (705), the outer surfaces of the two limiting rods (713) are both sleeved with telescopic springs (715), one end of each of the two telescopic springs (715) is fixedly connected with the bearing plate (705), and the ends, away from the bearing plate (705), of the two telescopic springs (715) are respectively fixedly connected with the two baffle plates (714).

7. The pile foundation static load detection auxiliary precast pile cap according to claim 1, characterized in that: The two sides of the chiseling plate (710) are both fixedly connected with cleaning long brushes (711), one end of the chiseling roller (703) close to the bearing plate (705) is fixedly connected with three arc-shaped extrusion blocks (717) arranged in a circumferential array, the upper portion of the chiseling plate (710) is fixedly connected with arc-shaped extrusion blocks (716) matched with the arc-shaped extrusion blocks (717), and the lower portion of the chiseling plate (710) and the outer surface of the chiseling roller (703) are both provided with a plurality of crushing cones.

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