CN117071560A - A kind of prefabricated pipe pile construction positioning support device - Google Patents

Abstract

The invention provides a positioning and supporting device for construction of a precast tubular pile, which relates to the technical field of pile foundation construction and comprises the following components: the lifting mechanism comprises a portal frame, a lifting cross beam is arranged in the portal frame, and a lifting hook is arranged at the bottom of the lifting cross beam; the clamping assembly comprises two clamping vertical rods, clamping blocks are arranged at the lower ends of the clamping vertical rods, lifting connecting rods are connected to the tops of the clamping vertical rods, and the two lifting connecting rods are rotatably arranged on the connecting rotating shafts; and the lifting assembly is arranged on the working platform and is connected with the connecting rotating shaft. The device can realize self-adaptive clamping and fixing according to the diameters of different tubular piles, thereby ensuring the stability of tubular pile construction and positioning, greatly improving the working efficiency and positioning precision of tubular pile positioning construction, and having simple operation and convenient use.

Description

A kind of prefabricated pipe pile construction positioning support device

Technical field

The invention belongs to the technical field of pile foundation construction, and in particular relates to a prefabricated pipe pile construction positioning support device.

Background technique

With the continuous improvement of the construction industry, prefabricated pipe piles have been widely used. The pile foundation has a high bearing capacity, can withstand vertical loads, can also withstand horizontal loads, can resist uplift loads and withstand vibration loads, and is the most widely used. Extensive deep base form. The construction quality of the pile foundation plays a vital role in the safety and stability of the superstructure. The pile position deviation and pile verticality during the construction process will have an important impact on the overall quality of the project. Therefore, in the precast pipe During the pile construction process, controlling the position deviation and verticality deviation in the horizontal plane is a key element in the pile foundation construction process.

The existing traditional pile foundation positioning usually uses instruments to measure the center position of the pile foundation and mark it, and then the piles are lifted into position. During the piling operation, the position of the pile body is mainly controlled by workers through observation and lifting of the upper lifting point. , adjust the position of the pile body. Since the pile body has only one fixed point on the upper part of the pile body during the lifting process, the lower part of the pile body is always in a free swing state, making it difficult to adjust the plane position of the pile body and the verticality of the pile body. It is extremely difficult and requires high construction experience and technical level of operators. The plane position deviation of the pile and the verticality of the pile body are usually determined by the technical level and sense of responsibility of the workers. The construction quality and accuracy are difficult to control, and piles are prone to occur. Excessive position deviation and other non-compliant behaviors will cause greater economic and construction period losses.

Contents of the invention

The purpose of the embodiments of the present invention is to provide a prefabricated pipe pile construction positioning support device, aiming to solve the problems described in the prior art.

The embodiment of the present invention is implemented in this way. A prefabricated pipe pile construction positioning support device includes a working platform. The bottom of the working platform is provided with a moving mechanism, and the working platform is rotationally mounted on the moving mechanism. It also includes:

Hoisting mechanism, the hoisting mechanism includes a gantry installed on a working platform, a lifting beam is slidably installed in the gantry in the vertical direction, and the working platform is provided with a lifting station in the area where the lifting beam is vertically projected. (Trough-shaped), the bottom of the lifting beam is provided with a hook;

Clamping assembly, the clamping assembly is used to adaptively clamp the pipe piles hoisted at the hook, the clamping assembly includes two clamping poles symmetrically installed in the hoisting beam, and the clamping The holding pole is slidably installed in the hoisting beam in the horizontal direction, and the two clamping poles are connected to the interior of the hoisting beam through elastic return elements. A clamping pole is installed at the lower end of the two clamping poles. block, and the two clamping blocks are relatively installed on the clamping pole. The tops of the two clamping poles are rotatably connected with a lifting link, and the two lifting links are away from the clamping pole. One end of each is rotatably mounted on the connecting shaft; and

Lifting assembly, the lifting assembly is installed on the working platform, and the lifting assembly is connected to the connecting shaft. The lifting assembly is used to drive the clamping assembly to adaptively clamp the side wall of the pipe pile, and to synchronously drive the lifting beam. Install and position the clamped pipe piles.

In a further technical solution, guide rollers are rotatably installed on both sides of the hoisting beam, and a guide chute is provided on the gantry for linear sliding of the guide rollers in the vertical direction.

In a further technical solution, the elastic return element can be a return spring or an elastic telescopic rod, and when the device is in a free state, the elastic restoring force of the elastic return element will cause the gap between the two clamping poles to Maximize the spacing.

In a further technical solution, the lifting assembly includes a rewinding roller installed on the working platform. The rewinding roller is connected to a drive motor, and the drive motor drives the rewinding roller to rotate. There is a rewinding device on the rewinding roller. The winding rope is equipped with a fixed pulley on the top of the gantry, and the winding rope is wound around the fixed pulley and connected to the connecting rotating shaft.

In a further technical solution, a lifting ring is installed on the connecting rotating shaft, and one end of the winding rope is connected to the connecting rotating shaft through a lifting ring.

In a further technical solution, the bottom of the working platform is also provided with auxiliary support components for auxiliary support of the working platform, and four sets of auxiliary support components are installed symmetrically on the bottom of the working platform.

In a further technical solution, the auxiliary support assembly includes a support plate rotatably mounted on the bottom wall of the work platform and a first telescopic element, and the movable end of the first telescopic element is connected to the side wall of the support plate, and the support plate The free end of the second telescopic element is installed with a second telescopic element, and the bottom of the second telescopic element is connected to a supporting chassis.

In a further technical solution, the first telescopic element and the second telescopic element are both hydraulic telescopic rods.

In a further technical solution, the moving mechanism adopts a crawler-type moving mechanism with strong carrying capacity.

Another object of the embodiment of the present invention is to provide a prefabricated pipe pile construction positioning method. Based on the above-mentioned prefabricated pipe pile construction positioning support device, it includes the following specific steps:

Step 1. First, the telescopic movement of the first telescopic element drives the second telescopic element to rotate, thereby adjusting the second telescopic element to the designated position. Then, by controlling the telescopic amount of the second telescopic element, the supporting chassis is in stable contact with the ground. , thereby providing stable support to the working platform;

Step 2. Lower the hoisting beam to the specified height through the lifting component, then hoist the pipe pile at the hoisting station on the hook, drive the motor to drive the rewinding roller to rewind the rewinding rope, and the rewinding rope will pass through The lifting ring drives the connecting shaft to move upward, and the connecting shaft drives the two clamping poles to move toward each other at the same time through the lifting connecting rod. The clamping pole drives the two clamping blocks to approach each other, thereby clamping the side wall of the pipe pile to be lifted;

Step 3. After the side wall of the pipe pile is clamped and fixed, the clamping pole drives the lifting beam to move upward as a whole. The lifting beam drives the pipe pile to rise synchronously through the hook, so that the pipe pile can be lifted, and then the pipe is lifted. The piles are moved to the designated installation position for lowering;

Step 4. When the pipe pile is lowered into place, the lifting beam will no longer move downward under the support of the pipe pile. At this time, as the winding rope continues to be unrolled, the elastic reset element will drive the clamping pole away from the One side of the pipe pile slides, and the clamping pole drives the clamping block to automatically separate from the pipe pile, which completes the positioning and installation of the pipe pile.

beneficial effects

A prefabricated pipe pile construction positioning support device provided by an embodiment of the present invention first lowers the lifting beam to a specified height through a lifting assembly, then hoists the top of the pipe pile on the hanging hook, and then lifts the pipe pile through the lifting assembly. , during this process, due to the gravity of the pipe pile, the lifting component will first drive the connecting shaft to move upward. The connecting shaft drives the two clamping poles to move toward each other at the same time through the lifting connecting rod, and the two clamping poles are driven by the clamping pole. The blocks are close to each other to clamp the side wall of the pipe pile to be hoisted, and when the clamping block contacts the side wall of the pipe pile, the clamping pole will no longer slide, thereby achieving automatic adjustment according to the diameter of the pipe pile. Adapted to clamping purposes. When the side wall of the pipe pile is clamped and fixed, the clamping pole can drive the lifting beam to move upward as a whole. The lifting beam drives the pipe pile to rise synchronously through the hook, so that the pipe pile can be lifted. During the process of lowering the pipe pile, due to the gravity of the pipe pile, the clamping assembly will always maintain a stable clamping state, thereby ensuring that the pipe pile will not swing when positioning and installing the pipe pile. During the process of lowering the pipe pile, due to the gravity of the pipe pile, the clamping assembly will always maintain a stable clamping state, thereby ensuring that the pipe pile will not swing during the positioning and installation of the pipe pile, which greatly improves the efficiency of the pipe pile. Work efficiency and positioning accuracy of pile positioning construction. When the pipe pile is lowered into place, the lifting beam will no longer move downward under the support of the pipe pile. At this time, as the winding rope continues to be unrolled, the elastic reset element will drive the clamping pole away from the pipe pile. Sliding on one side, the clamping pole drives the clamping block to automatically separate from the pipe pile, and subsequent construction operations can be carried out. This device can realize adaptive clamping and fixing according to the diameter of different pipe piles, thereby ensuring the stability of pipe pile positioning during construction, greatly improving the work efficiency and positioning accuracy of pipe pile positioning construction, and is simple to operate and easy to use.

Description of the drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are only These are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on the structures shown in these drawings without exerting creative efforts.

Figure 1 is a schematic structural diagram of a prefabricated pipe pile construction positioning support device provided by an embodiment of the present invention;

Figure 2 is a schematic structural diagram of the cooperation between the hoisting beam and the guide roller in a prefabricated pipe pile construction positioning support device provided by an embodiment of the present invention;

Figure 3 is a schematic structural diagram of a clamping component in a prefabricated pipe pile construction positioning support device provided by an embodiment of the present invention;

Figure 4 is a sectional view of the end portion of the clamping assembly in a prefabricated pipe pile construction positioning support device provided by an embodiment of the present invention;

Figure 5 is a schematic structural diagram of an auxiliary support component in a prefabricated pipe pile construction positioning support device provided by an embodiment of the present invention;

Figure 6 is an enlarged view of position A in Figure 1 in a prefabricated pipe pile construction positioning support device provided by an embodiment of the present invention.

In the drawings: working platform 1; moving mechanism 11; hoisting station 12; auxiliary support assembly 2; support plate 21; first telescopic element 22; second telescopic element 23; support chassis 24; hoisting mechanism 3; gantry 31; Lifting beam 32; hook 33; guide roller 34; guide chute 35; clamping component 4; lifting ring 41; connecting shaft 42; lifting link 43; clamping vertical rod 44; elastic return element 45; clamping block 46; Lifting component 5; rewinding roller 51; rewinding rope 52; fixed pulley 53.

The realization of the purpose, functional features and advantages of the present invention will be further described with reference to the embodiments and the accompanying drawings.

Detailed ways

In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention and are not intended to limit the present invention.

The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

As shown in Figures 1-4, a prefabricated pipe pile construction positioning support device provided by one embodiment of the present invention includes a working platform 1. The bottom of the working platform 1 is provided with a moving mechanism 11, and the working platform 1 Rotated on the moving mechanism 11, it also includes:

Hoisting mechanism 3. The hoisting mechanism 3 includes a gantry 31 installed on the working platform 1. A lifting beam 32 is slidably installed in the gantry 31 in the vertical direction, and the working platform 1 is vertically connected to the lifting beam 32. A lifting station 12 (trough-shaped) is provided in the projected area, and a hook 33 is provided at the bottom of the lifting beam 32;

The clamping assembly 4 is used to adaptively clamp the pipe piles hoisted at the hook 33. The clamping assembly 4 includes two clamping poles symmetrically installed in the hoisting beam 32. 44, and the clamping poles 44 are slidably installed in the hoisting beam 32 in the horizontal direction. The two clamping poles 44 are connected to the interior of the hoisting beam 32 through elastic reset elements 45. A clamping block 46 is installed at the lower end of the vertical pole 44, and the two clamping blocks 46 are relatively installed on the clamping vertical pole 44. The tops of the two clamping vertical poles 44 are rotatably connected to a lifting device. Connecting rod 43, one end of the two lifting connecting rods 43 away from the clamping pole 44 is rotatably installed on the connecting shaft 42; and

Lifting component 5, the lifting component 5 is installed on the working platform 1, and the lifting component 5 is connected to the connecting shaft 42. The lifting component 5 is used to drive the clamping component 4 to adaptively clamp the side wall of the pipe pile. Hold, and simultaneously drive the lifting beam 32 to install and position the clamped pipe pile.

In the embodiment of the present invention, by setting the hoisting station 12, the installation position of the gantry 31 can be as close as possible to the center of the working platform 1, thereby ensuring that the center of gravity of the entire device is as close as possible to the working platform 1 during hoisting work. center, thus improving the stability of the device. When in use, the lifting beam 32 is first lowered to a specified height through the lifting assembly 5, and then the top of the pipe pile is hoisted on the hook 33. Then the pipe pile is lifted by the lifting assembly 5. During this process, due to the gravity of the pipe pile, the lifting assembly 5 will first drive the connecting shaft 42 to move upward. The connecting shaft 42 drives the two clamping poles through the lifting connecting rod 43. 44 move toward each other at the same time, and the two clamping blocks 46 are driven close to each other by clamping the vertical rod 44 to clamp the side wall of the pipe pile to be hoisted, and when the clamping block 46 contacts the side wall of the pipe pile, The clamping pole 44 no longer slides, thereby achieving the purpose of adaptive clamping according to the diameter of the pipe pile. When the side wall of the pipe pile is clamped and fixed, the clamping pole 44 can drive the hoisting beam 32 to move upward as a whole. The hoisting beam 32 drives the pipe pile to rise synchronously through the hook 33, so that the pipe pile can be lifted. During the process of lowering the pipe pile, due to the gravity of the pipe pile, the clamping assembly 4 will always maintain a stable clamping state, thereby ensuring that the pipe pile will not swing when positioning and installing the pipe pile, which greatly improves the efficiency of the pipe pile. Work efficiency and positioning accuracy of pipe pile positioning construction. During the process of lowering the pipe pile, due to the gravity of the pipe pile, the clamping assembly 4 will always maintain a stable clamping state, thereby ensuring that the pipe pile will not swing when positioning and installing the pipe pile, which greatly improves the efficiency of the pipe pile. Work efficiency and positioning accuracy of pipe pile positioning construction. When the pipe pile is lowered into place, the hoisting beam 32 will no longer move downward under the support of the pipe pile. At this time, as the winding rope continues to be unrolled, the elastic reset element 45 will drive the clamping pole 44 away. One side of the pipe pile slides, and the clamping pole 44 drives the clamping block 46 to automatically separate from the pipe pile, and subsequent construction operations can be performed.

As shown in Figures 1 and 2, as a preferred embodiment of the present invention, guide rollers 34 are rotatably installed on both sides of the lifting beam 32, and the gantry 31 is provided with a hole for the guide rollers 34 to carry out the operation. A linear sliding guide chute 35 in the vertical direction.

In the embodiment of the present invention, during the up and down movement of the hoisting cross beam 32, the hoisting cross beam 32 can drive the guide roller 34 to slide synchronously in the guide chute 35, so that the hoisting cross beam 32 will not interact with the hoisting cross beam 32 during its up and down movement. Relative shaking occurs between the gantry frames 31 to ensure stability during installation and positioning. At the same time, there is rolling friction between the guide roller 34 and the guide chute 35, and the wear between the components is small, which will not produce a damping effect on the movement process of the hoisting beam 32.

As shown in Figures 3 and 4, as a preferred embodiment of the present invention, the elastic return element 45 can be a return spring or an elastic telescopic rod, and when the device is in a free state, the elastic return element 45 The elastic restoring force will maximize the distance between the two clamping poles 44 .

As shown in Figures 1, 3, 4 and 6, as a preferred embodiment of the present invention, the lifting assembly 5 includes a rewinding roller 51 installed on the working platform 1, and the rewinding roller 51 is connected to There is a driving motor, which drives the winding roller 51 to rotate. The winding roller 51 has a winding rope 52 wound on it. A fixed pulley 53 is installed on the top of the gantry 31, and the winding rope 52 It is wound around the fixed pulley 53 and connected to the connecting rotating shaft 42 .

In the embodiment of the present invention, a lifting ring 41 is installed on the connecting shaft 42 , and one end of the retracting rope 52 is connected to the lifting ring 41 . During use, the winding roller 51 is driven by the drive motor to wind up (or unwind) the winding rope 52. The winding rope 52 can drive the connecting shaft 42 to move up and down through the lifting ring 41, thereby adjusting the clamping assembly 4.

As shown in Figures 1 and 5, as a preferred embodiment of the present invention, the bottom of the working platform 1 is also provided with an auxiliary support assembly 2 for auxiliary support of the working platform 1, and the working platform 1 Four sets of auxiliary support assemblies 2 are installed symmetrically on the bottom, thereby increasing the stability of the working platform 1 during hoisting and positioning.

In the embodiment of the present invention, the auxiliary support assembly 2 includes a support plate 21 rotatably installed on the bottom wall of the working platform 1 and a first telescopic element 22, and the movable end of the first telescopic element 22 is in contact with the support plate 21 The side walls are connected, the free end of the support plate 21 is installed with a second telescopic element 23, and the bottom of the second telescopic element 23 is connected with a support chassis 24. Specifically, the first telescopic element 22 and the second telescopic element 23 are both hydraulic telescopic rods.

When in use, it is only necessary to control the telescopic amount of the second telescopic element 23 so that the supporting chassis 24 is in stable contact with the ground. With the cooperation of the four supporting chassis 24, the working platform 1 can be stably supported to prevent the entire device from rolling over and tilting during hoisting and positioning, and by adjusting the independent second telescopic elements 23 Timely adjustment can always keep the working platform 1 in a horizontal state, thereby ensuring the levelness of the pipe pile positioning and reducing operational errors caused by manual positioning. At the same time, before the support chassis 24 contacts the ground, the telescopic movement of the first telescopic element 22 can drive the second telescopic element 23 to rotate, thereby adjusting the position where the support chassis 24 contacts the ground, which can be adjusted according to the actual working area during work. Adjust to improve the device's operational flexibility and environmental adaptability.

As shown in Figure 1, as a preferred embodiment of the present invention, the moving mechanism 11 adopts a crawler-type moving mechanism, which has strong carrying capacity and good passability, making it easy to move and operate in the construction area.

Working principle: Before positioning the pipe pile construction, the telescopic movement of the first telescopic element 22 drives the second telescopic element 23 to rotate, thereby adjusting the position of the support chassis 24 in contact with the ground, and then by controlling the movement of the second telescopic element 23. The amount of expansion and contraction ensures that the support chassis 24 is in stable contact with the ground, and the working platform 1 can be stably supported. When in use, the lifting beam 32 is first lowered to a specified height through the lifting assembly 5, and then the top of the pipe pile is hoisted on the lifting hook 33, and then the pipe pile can be lifted through the lifting assembly 5. Specifically, the driving motor drives the winding roller 51 to wind up the winding rope 52. During this process, due to the gravity of the pipe pile, the winding rope 52 drives the connecting shaft 42 to move upward through the lifting ring 41, and the connecting shaft 42 moves upward. The lifting connecting rod 43 drives the two clamping poles 44 to move toward each other at the same time. The clamping poles 44 drive the two clamping blocks 46 to approach each other. The two clamping blocks 46 clamp the side walls of the pipe pile to be lifted. and when the clamping block 46 stably clamps the side wall of the pipe pile, the clamping pole 44 will no longer slide, thereby achieving the purpose of adaptive clamping according to the diameter of the pipe pile. When the side wall of the pipe pile is clamped and fixed, the clamping pole 44 can drive the hoisting beam 32 to move upward as a whole. The hoisting beam 32 drives the pipe pile to rise synchronously through the hook 33, so that the pipe pile can be lifted. During the process of lowering the pipe pile, due to the gravity of the pipe pile, the clamping assembly 4 will always maintain a stable clamping state, thereby ensuring that the pipe pile will not swing when positioning and installing the pipe pile, which greatly improves the efficiency of the pipe pile. Work efficiency and positioning accuracy of pipe pile positioning construction. When the pipe pile is lowered into place, the hoisting beam 32 will no longer move downward under the support of the pipe pile. At this time, as the winding rope continues to be unrolled, the elastic reset element 45 will drive the clamping pole 44 away. One side of the pipe pile slides, and the clamping pole 44 drives the clamping block 46 to automatically separate from the pipe pile, and subsequent construction operations can be performed.

Embodiments of the present invention also disclose a prefabricated pipe pile construction positioning method, which is based on the above-mentioned prefabricated pipe pile construction positioning support device and mainly includes the following steps:

Step 1: First, the telescopic movement of the first telescopic element 22 drives the second telescopic element 23 to rotate, thereby adjusting the second telescopic element 23 to a designated position, and then controlling the telescopic amount of the second telescopic element 23 to support the chassis. 24 is in stable contact with the ground to provide stable support to the working platform 1;

Step 2: lower the lifting beam 32 to the specified height through the lifting assembly 5, then hoist the pipe pile at the lifting station 12 on the hook 33, and drive the winding roller 51 through the drive motor to wind up the winding rope 52 , the take-up rope 52 will drive the connecting shaft 42 to move upward through the lifting ring 41, and the connecting shaft 42 will drive the two clamping poles 44 to move toward each other at the same time through the lifting link 43, and the clamping pole 44 will drive the two clamping blocks 46 to approach each other. , thereby clamping the side wall of the pipe pile to be lifted;

Step 3. After the side wall of the pipe pile is clamped and fixed, the clamping pole 44 drives the lifting beam 32 to move upward as a whole. The lifting beam 32 drives the pipe pile to rise synchronously through the hook 33, so that the pipe pile can be lifted. , and then move the pipe pile to the designated installation location for lowering;

Step 4. After the pipe pile is lowered into place, the lifting beam 32 will no longer move downward under the support of the pipe pile. At this time, as the winding rope continues to be unrolled, the elastic reset element 45 will drive the clamping pole. 44 slides to the side away from the pipe pile, and the clamping pole 44 drives the clamping block 46 to automatically separate from the pipe pile, thereby completing the positioning and installation of the pipe pile.

It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that these entities or operations are mutually exclusive. any such actual relationship or sequence exists between them. Furthermore, the terms "comprises," "comprises," or any other variation thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements, but also those not expressly listed other elements, or elements inherent to the process, method, article or equipment.

Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art will understand that various changes, modifications, and substitutions can be made to these embodiments without departing from the principles and spirit of the invention. and modifications, the scope of the invention is defined by the appended claims and their equivalents.

Claims (10)

1. The utility model provides a prefabricated tubular pile construction location strutting arrangement, includes work platform (1), the bottom of work platform (1) is provided with moving mechanism (11), just work platform (1) rotate and install on moving mechanism (11), its characterized in that still includes:

the lifting mechanism (3), the lifting mechanism (3) comprises a portal frame (31) arranged on the working platform (1), a lifting cross beam (32) is slidably arranged in the portal frame (31) along the vertical direction, and a lifting hook (33) is arranged at the bottom of the lifting cross beam (32);

the clamping assembly (4), the clamping assembly (4) is used for carrying out self-adaptive clamping on the pipe pile hoisted at the lifting hook (33), the clamping assembly (4) comprises two clamping vertical rods (44) symmetrically arranged in the hoisting cross beam (32), the clamping vertical rods (44) are slidably arranged in the hoisting cross beam (32) along the horizontal direction, the two clamping vertical rods (44) are connected with the inside of the hoisting cross beam (32) through elastic reset elements (45), one clamping block (46) is arranged at the lower end of each clamping vertical rod (44), the two clamping blocks (46) are oppositely arranged on the clamping vertical rods (44), the tops of the two clamping vertical rods (44) are rotatably connected with one hoisting connecting rod (43), and one ends of the two hoisting connecting rods (43) far away from the clamping vertical rods (44) are rotatably arranged on the connecting rotating shaft (42); and

lifting by crane subassembly (5), lifting by crane subassembly (5) install on work platform (1), just lifting by crane subassembly (5) are connected with connecting pivot (42), lifting by crane subassembly (5) are used for driving clamping component (4) and carry out self-adaptation centre gripping to the lateral wall of tubular pile to synchronous drive hoist and mount crossbeam (32) and install the location to the tubular pile that is held.

2. The precast tubular pile construction positioning and supporting device according to claim 1, wherein the working platform (1) is provided with a groove-shaped hoisting station (12) in a vertically projected area of the hoisting cross beam (32).

3. The positioning and supporting device for the construction of the prefabricated pipe pile according to claim 1, wherein guide rollers (34) are rotatably mounted on two sides of the hoisting cross beam (32), and guide sliding grooves (35) for the guide rollers (34) to linearly slide in the vertical direction are formed in the portal frame (31).

4. A precast tubular pile construction positioning support device according to claim 1, characterized in that the elastic return element (45) is a return spring or an elastic telescopic rod, and that when the device is in a free state, the elastic restoring force of the elastic return element (45) will bring the distance between the two clamping uprights (44) to a maximum value.

5. The precast tubular pile construction positioning and supporting device according to claim 1, wherein the hoisting assembly (5) comprises a winding roller (51) installed on the working platform (1), the winding roller (51) is connected with a driving motor, a winding rope (52) is wound on the winding roller (51), a fixed pulley (53) is installed at the top of the portal frame (31), and the winding rope (52) bypasses the fixed pulley (53) and is connected with the connecting rotating shaft (42).

6. The precast tubular pile construction positioning and supporting device according to claim 5, wherein the connecting rotating shaft (42) is provided with a hanging ring (41), and one end of the winding rope (52) is connected with the connecting rotating shaft (42) through the hanging ring (41).

7. The precast tubular pile construction positioning and supporting device according to claim 1, wherein an auxiliary supporting component (2) for carrying out auxiliary supporting on the working platform (1) is further arranged at the bottom of the working platform (1), and four groups of auxiliary supporting components (2) are symmetrically arranged at the bottom of the working platform (1) in pairs.

8. The precast tubular pile construction positioning and supporting device according to claim 7, characterized in that the auxiliary supporting assembly (2) comprises a supporting plate (21) and a first telescopic element (22) rotatably mounted on the bottom wall of the working platform (1), the movable end of the first telescopic element (22) is connected with the side wall of the supporting plate (21), a second telescopic element (23) is mounted at the free end of the supporting plate (21), and a supporting chassis (24) is connected to the bottom of the second telescopic element (23).

9. The precast tubular pile construction positioning and supporting device according to claim 8, characterized in that the first telescopic element (22) and the second telescopic element (23) are both hydraulic telescopic rods.

10. A method for positioning a precast tubular pile in construction, characterized in that the apparatus for positioning a precast tubular pile in construction according to any one of claims 1 to 9 comprises the steps of:

step 1, driving a second telescopic element (23) to rotate through telescopic movement of a first telescopic element (22), so that the second telescopic element (23) is adjusted to a designated position, and then enabling a supporting chassis (24) to be in stable contact with the ground through controlling the telescopic amount of the second telescopic element (23), so that a working platform (1) is stably supported;

step 2, lowering a hoisting beam (32) to a specified height through a hoisting assembly (5), hoisting a tubular pile at a hoisting station (12) on a lifting hook (33), driving a winding roller (51) to wind a winding rope (52) through a driving motor, driving a connecting rotating shaft (42) to move upwards through a lifting ring (41), driving two clamping upright rods (44) to move in opposite directions simultaneously through a hoisting connecting rod (43) by the connecting rotating shaft (42), and driving two clamping blocks (46) to be close to each other by the clamping upright rods (44), so that the side wall of the tubular pile to be hoisted is clamped;

step 3, after the side wall of the pipe pile is clamped and fixed, the clamping upright rod (44) drives the lifting beam (32) to integrally move upwards, the lifting beam (32) drives the pipe pile to synchronously rise through the lifting hook (33), namely, the lifting of the pipe pile is realized, and then the pipe pile is moved to a designated mounting position for lowering;

and 4, after the pipe pile is lowered in place, the lifting cross beam (32) does not move downwards under the supporting action of the pipe pile, at the moment, along with the continuous unreeling of the reeling rope (52), the elastic reset element (45) drives the clamping upright rod (44) to slide to one side far away from the pipe pile, and the clamping upright rod (44) drives the clamping block (46) to be automatically separated from the pipe pile, so that the positioning and the installation of the pipe pile are completed.