Out-hole fixing device for filling guide pipe in cast-in-situ bored pile construction

Abstract

The utility model discloses an out-hole fixing device for a filling guide pipe in cast-in-situ bored pile construction, relates to the technical field of cast-in-situ bored pile construction auxiliary devices, and aims to solve the problems that an existing out-hole fixing device for the filling guide pipe is complex in operation and long in operation time, affects the splicing efficiency of the filling guide pipe and lacks an auxiliary supporting structure for a drainage or diversion structure. The device comprises a base, two side baffles, two clamping units and four filling hopper supporting mechanisms, a guide pipe inserting hole is machined in the center of the top of the base, the two sides of the guide pipe inserting hole are each provided with one side baffle, and the bottom of each side baffle is fixedly connected with the top of the base; the two clamping units are arranged between the two side baffles, the two clamping units are both installed on the top of the base, the four filling hopper supporting mechanisms are all arranged on the base, each filling hopper supporting set is arranged on the outer side of one side baffle, and each filling hopper supporting mechanism is installed on the top of the base. The auxiliary device is mainly used for assisting the splicing of the filling guide pipe in the construction of the cast-in-situ bored pile.

Description

Technical Field

[0001] The utility model relates to the technical field of construction auxiliary devices for bored cast-in-place piles, and particularly relates to an external hole fixing device for a filling conduit in the construction of bored cast-in-place piles. Background Art

[0002] A bored cast-in-place pile refers to a pile body structure formed by means of mechanical drilling, steel pipe soil extrusion or manual excavation on the construction site in the foundation soil, and placing a steel reinforcement cage and pouring concrete therein. When pouring concrete for a bored cast-in-place pile, the used filling conduit is a split structure and needs to be installed section by section on site and lowered into the pile hole after hole cleaning. During the process of installing section by section, it is necessary to fix the filling conduit part located below to improve the stability of the installation of the upper filling conduit. And when carrying out the concrete pouring work after the conduit is installed, a drainage or diversion structure (filling hopper) is usually installed at the uppermost conduit structure to guide the concrete into the bored pile. There are two potential safety hazards during the whole pouring process. First, it is the fixing method of the filling conduit located below during the installation of the filling conduit. If the fixing of the filling conduit below is not firm, it is very easy to cause dislocation and assembly deviation when installing the upper filling conduit, which is likely to affect the reliability of the connection. Second, during the concrete pouring work, the drainage or diversion structure is directly installed on the uppermost conduit structure and is only supported independently by the uppermost conduit structure. When the pouring impulse is large, it is easy to have the drainage or diversion structure tilt, which is likely to cause engineering accidents and also damage the pipe orifice structure of the uppermost conduit structure. The existing external hole fixing device for the filling conduit usually adopts the method of a splicing frame and bolt fastening. Such an external hole fixing structure, on the one hand, has relatively complex operation steps and a long operation time when realizing the clamping and loosening actions, which affects the splicing efficiency of the filling conduit. On the other hand, it lacks an auxiliary support structure for the drainage or diversion structure, resulting in relatively weak construction safety. Therefore, it is very practical to develop an efficient and safe external hole fixing device for the filling conduit in the construction of bored cast-in-place piles. Summary of the Utility Model

[0003] The utility model aims to solve the problems that the existing external hole fixing device for the filling conduit has complex operation, long operation time, affects the splicing efficiency of the filling conduit, and lacks an auxiliary support structure for the drainage or diversion structure, resulting in relatively weak construction safety, and further provides an external hole fixing device for a filling conduit in the construction of bored cast-in-place piles;

[0004] An external hole fixing device for a filling conduit in the construction of bored cast-in-place piles. The external hole fixing device includes a base, two side baffles, two clamping units, and four filling hopper support mechanisms. A conduit insertion hole is machined at the center of the top of the base. One side baffle is provided on each side of the conduit insertion hole, and the side baffles are arranged parallel and opposite along a diameter of the orifice of the conduit insertion hole. The bottom of each side baffle is fixedly connected to the top of the base. The two clamping units are arranged between the two side baffles, and the two clamping units are relatively arranged on both sides of the conduit insertion hole. Both clamping units are installed on the top of the base. The four filling hopper support mechanisms are evenly divided into two filling hopper support groups. Each filling hopper support group is arranged outside one side baffle, and the two filling hopper support groups are symmetrically arranged along the conduit insertion hole. The two filling hopper support mechanisms in each filling hopper support group are symmetrically arranged along the center line of the length direction of the side baffle, and each filling hopper support mechanism is installed on the top of the base;

[0005] Further, the base is a circular truncated cone or a rectangular truncated cone;

[0006] Further, a slope is machined along the circumferential direction on the outer contour of the top of the base;

[0007] Further, accommodation grooves are machined at the corresponding positions of the top of the base and each filling hopper support mechanism. Each filling hopper support mechanism is correspondingly arranged in one accommodation groove, and each filling hopper support mechanism is installed on the bottom of the accommodation groove where it is located;

[0008] Further, two lifting lugs are also provided on the top of the base. The two lifting lugs are symmetrically arranged along the conduit insertion hole, and both lifting lugs are detachably connected to the base by threads;

[0009] Further, the clamping unit includes a clamping plate structure, an electric cylinder support plate, an electric cylinder, and two clamping plate guiding mechanisms. The two clamping plate guiding mechanisms are arranged parallel and opposite between the two side baffles, and each clamping plate guiding mechanism is detachably connected to the inner side wall of one side baffle by bolts. The clamping plate structure is arranged between the two clamping plate guiding mechanisms, and both sides of the clamping plate structure are slidably connected to one clamping plate guiding mechanism respectively. The bottom of the clamping plate structure is slidably connected to the top of the base. The electric cylinder support plate is erected on the top of the two clamping plate guiding mechanisms, and the bottom of the electric cylinder support plate is detachably connected to the top of the two clamping plate guiding mechanisms by bolts. The electric cylinder is arranged on the top of the electric cylinder support plate, and the length extension direction of the electric cylinder is the same as the length extension direction of the side baffle. The cylinder body of the electric cylinder is detachably connected to the top of the electric cylinder support plate through a mounting seat. The piston rod end of the electric cylinder is arranged towards the direction where the conduit insertion hole is located. The end of the piston rod in the electric cylinder is detachably connected to the clamping plate structure by bolts. The electric cylinder serves as a power source to drive the clamping plate structure to reciprocate between the two clamping plate guiding mechanisms along the length extension direction of the clamping plate guiding mechanism;

[0010] Further, the clamping plate guiding mechanism includes a C-shaped groove body and a plurality of first guiding pulleys. The C-shaped groove body is arranged on the inner side wall of a side baffle, and the closed side of the C-shaped groove body is detachably connected to the corresponding side baffle through bolts. The plurality of first guiding pulleys are sequentially and equidistantly arranged in the C-shaped groove body along the length extension direction of the C-shaped groove body, and each first guiding pulley is rotationally connected to the C-shaped groove body through a wheel axle. The outer wheel surface of each first guiding pulley extends outside the C-shaped groove body and contacts one side of the clamping plate structure. Each side of the clamping plate structure is slidably connected to the C-shaped groove body through a plurality of first guiding pulleys. The bottom of the electric cylinder support plate is detachably connected to the top of the C-shaped groove body through bolts;

[0011] Further, the clamping plate structure includes a main board body, an upper connecting plate, and two second guiding pulley groups. The main board body is arranged between the two C-shaped groove bodies, and each side of the main board body is slidably connected to the corresponding C-shaped groove body through a plurality of first guiding pulleys. The upper connecting plate is erected vertically on the top of the main board body, and the bottom of the upper connecting plate is fixedly connected to the top of the main board body. The end of the piston rod in the electric cylinder is detachably connected to the upper connecting plate through bolts. An arc-shaped clamping groove is processed at one end of the main board body facing the catheter insertion hole, and a flexible rubber is attached to the inner groove surface of the arc-shaped clamping groove. Two pulley grooves are symmetrically processed at the bottom of the main board body along the center line in the width direction of the main board body. Each second guiding pulley group is correspondingly arranged in one pulley groove. Each second guiding pulley group includes a plurality of second guiding pulleys. The plurality of second guiding pulleys are sequentially and equidistantly arranged in the corresponding pulley groove along the length extension direction of the pulley groove, and each second guiding pulley is rotationally connected to the side wall of the pulley groove through a wheel axle. The outer wheel surface of each second guiding pulley extends outside the pulley groove and contacts the top of the base. The main board body is slidably connected to the top of the base through a plurality of second guiding pulleys;

[0012] Further, the filling hopper support mechanism includes a hinge seat, a swing sleeve, a cylinder, a stiffness spring, a contact wheel seat, and a contact wheel. The hinge seat is arranged at one end of the bottom of the receiving slot, and the hinge seat is detachably connected to the bottom of the receiving slot through bolts. One end of the swing sleeve is arranged in the hinge seat and is hinged to the hinge seat through a hinge shaft. The cylinder body of the cylinder is inserted into the other end of the swing sleeve, and the open end of the cylinder body in the cylinder extends outside the swing sleeve. The contact wheel seat is arranged at the end of the piston rod in the cylinder and is detachably connected to the piston rod in the cylinder. The stiffness spring is sleeved outside the piston rod in the cylinder. One end of the stiffness spring is connected to the open end of the cylinder body in the cylinder, and the other end of the stiffness spring is connected to the bottom of the contact wheel seat. The contact wheel is arranged in the contact wheel seat and is rotationally connected to the contact wheel seat through a rotating shaft. The filling hopper support mechanism supports the bottom of the filling hopper through the wheel surface of the contact wheel;

[0013] Further, the filling bucket support mechanism is used in conjunction with the side support rod structure, and when the axis of the filling bucket support mechanism is perpendicular to the groove bottom of the accommodating embedding groove, the side support rod structure is obliquely arranged between the swing sleeve and the groove bottom of the accommodating embedding groove, and one end of the side support rod structure is detachably connected to the outer side wall of the swing sleeve by bolts, and the other end of the side support rod structure is detachably connected to the groove bottom of the accommodating embedding groove by bolts;

[0014] The beneficial effects of this application compared to the prior art are as follows:

[0015] The present application provides an external fixing device for filling a conduit in bored cast-in-place pile construction, wherein a conduit insertion hole on a base is arranged corresponding to the pile hole, a connection channel is provided when the conduit is lowered, and the conduit is clamped and fixed by clamping units located on both sides of the conduit insertion hole to ensure the stability of the conduit in the lower layer when the conduits are connected step by step. When the clamping unit is working, an electric cylinder is used as a power source to drive a clamping plate to approach the conduit and contact the conduit, and the clamping plate converts the thrust of the electric cylinder into a clamping force on the conduit to achieve the clamping purpose. In order to avoid damage to the outer surface of the conduit caused by the clamping force, a flexible rubber is provided on the clamping part of the clamping plate, and the flexible rubber contacts the outer surface of the conduit to play a buffering role, and the rigid contact is changed into a flexible contact. Moreover, the flexible rubber will generate friction with the outer surface of the conduit after being squeezed, which is also conducive to improving the stability of the clamping action.

[0016] The present application provides an external fixing device for a grouting catheter in bored cast-in-place pile construction. On the basis of ensuring that the catheter is clamped and fixed, an auxiliary supporting unit for a drainage or diversion structure is added, which can improve the stability of the drainage or diversion structure during operation and share the supporting pressure of the grouting catheter. In addition, the auxiliary supporting assembly supporting the diversion structure can be folded and is in a storage state during conventional catheter assembly, which will not interfere with the normal operation of the catheter assembly and is only used in the grouting operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a top view schematic diagram of the external hole fixing device described in the present application;

[0018] Figure 2 This is a top view schematic diagram of the external hole fixing device described in this application (when the electric cylinder mounting plate is not installed);

[0019] Figure 3 It is a top view schematic diagram of the external hole fixing device described in the present application (highlighting the matching relationship between the clamping plate guide mechanism and the clamping plate structure);

[0020] Figure 4 This is a top view of the external hole fixing device described in the present application (when clamping a catheter);

[0021] Figure 5Front view schematic diagram of the external hole fixing device described in this application;

[0022] Figure 6 Front view schematic diagram of the external hole fixing device described in this application (when removing the unilateral side baffle);

[0023] Figure 7 Partial sectional view schematic diagram of the external hole fixing device described in this application;

[0024] Figure 8 Front view schematic diagram of the clamping plate structure in the external hole fixing device described in this application;

[0025] Figure 9 Bottom view schematic diagram of the clamping plate structure in the external hole fixing device described in this application;

[0026] Figure 10 Front view schematic diagram of the filling hopper support mechanism in the external hole fixing device described in this application;

[0027] Figure 11 Top view schematic diagram of the filling hopper support mechanism in the external hole fixing device described in this application;

[0028] Figure 12 Working schematic diagram of the filling hopper support mechanism in the external hole fixing device described in this application;

[0029] Figure 13 Working schematic diagram of the filling hopper support mechanism for supporting the drainage or diversion structure in the external hole fixing device described in this application;

[0030] In the figure, 1 is the base, 11 is the catheter insertion hole, 12 is the accommodation groove, 13 is the lifting lug, 2 is the side baffle, 3 is the clamping plate guiding mechanism, 31 is the C-shaped groove body, 32 is the first guiding pulley, 4 is the clamping plate structure, 41 is the main board body, 411 is the pulley groove, 42 is the upper connecting plate, 43 is the second guiding pulley, 44 is the flexible rubber, 5 is the electric cylinder support plate, 6 is the electric cylinder, 7 is the filling hopper support mechanism, 71 is the hinge seat, 72 is the swing sleeve, 73 is the air cylinder, 74 is the stiffness spring, 75 is the contact wheel seat, 76 is the contact wheel, 8 is the side support rod structure, and 9 is the filling catheter. Specific implementation mode

[0031] Specific implementation mode one: Combine Figures 1 to 13Description of this embodiment: In this embodiment, an external fixing device for the filling conduit during the construction of bored cast-in-place piles is provided. The fixing device includes a base 1, two side baffles 2, two clamping units, and four filling hopper support mechanisms 7. A conduit insertion hole 11 is machined at the center of the top of the base 1. One side baffle 2 is provided on each side of the conduit insertion hole 11, and the side baffles 2 are arranged parallel and opposite to each other along a diameter of the orifice of the conduit insertion hole 11. The bottom of each side baffle 2 is fixedly connected to the top of the base 1. The two clamping units are arranged between the two side baffles 2, and the two clamping units are arranged opposite to each other on both sides of the conduit insertion hole 11. Both clamping units are installed on the top of the base 1. The four filling hopper support mechanisms 7 are evenly divided into two filling hopper support groups. Each filling hopper support group is arranged outside one side baffle 2, and the two filling hopper support groups are symmetrically arranged along the conduit insertion hole 11. The two filling hopper support mechanisms 7 in each filling hopper support group are symmetrically arranged along the center line in the length direction of the side baffle 2, and each filling hopper support mechanism 7 is installed on the top of the base 1.

[0032] In the external fixing device for the filling conduit during the construction of bored cast-in-place piles provided in this embodiment, a good zoning treatment of the base 1 is carried out by the side baffles 2. The area between the side baffles 2 is the clamping area, which is used to accommodate and protect the clamping units. The area outside the side baffles 2 is the filling hopper support area, which is used to accommodate the filling hopper support units. At the same time, the area outside the side baffles 2 is also the lifting area, which is used to cooperate with the lifting mechanism to move the base 1. To ensure the stability of the construction, a positioning cone for connecting with the foundation pit is also provided at the bottom of the base 1. The base 1 can be firmly fixed near the pile hole through the positioning cone. To improve the transportation convenience of the external fixing device, the positioning cone can be installed at the bottom of the base 1 in a detachable connection manner.

[0033] Specific embodiment two: Combined with Figures 1 to 13 Description of this embodiment: The difference between this embodiment and the first specific embodiment is that the base 1 is a circular truncated cone or a rectangular truncated cone. Other compositions and connection methods are the same as those in the first specific embodiment.

[0034] Specific embodiment three: Combined with Figures 1 to 13 Description of this embodiment: The difference between this embodiment and the second specific embodiment is that a slope is machined along the circumferential direction on the outer contour of the top of the base 1. Other compositions and connection methods are the same as those in the second specific embodiment.

[0035] Specific embodiment four: Combined with Figures 1 to 13Regarding this embodiment, the difference from the third specific embodiment is that at the corresponding positions between the top of the base 1 and each filling hopper support mechanism 7, accommodation grooves 12 are machined. Each filling hopper support mechanism 7 is correspondingly arranged in an accommodation groove 12, and each filling hopper support mechanism 7 is installed on the bottom of the corresponding accommodation groove 12. Other components and connection methods are the same as those in the third specific embodiment.

[0036] With such a setting, the filling hopper support mechanism 7 can be hidden in the base 1 under normal conditions, without interfering with the work of catheter splicing. At the same time, it is also an effective protection for the filling hopper support mechanism 7, preventing it from being easily damaged when exposed.

[0037] Specific embodiment five: Combining Figures 1 to 13 Regarding this embodiment, the difference from the fourth specific embodiment is that two lifting lugs 13 are further provided on the top of the base 1. The two lifting lugs 13 are symmetrically arranged along the catheter insertion hole 11, and both of the two lifting lugs 13 are detachably connected to the base 1 by threads. Other components and connection methods are the same as those in the fourth specific embodiment.

[0038] With such a setting, by connecting the lifting lugs 13 with a lifting device, it is convenient to carry out the lifting work.

[0039] Specific embodiment six: Combining Figures 1 to 13 Regarding this embodiment, the difference from the fifth specific embodiment is that the clamping unit includes a clamping plate structure 4, an electric cylinder support plate 5, an electric cylinder 6, and two clamping plate guiding mechanisms 3. The two clamping plate guiding mechanisms are arranged in parallel and opposite to each other between the two side baffles 2, and each clamping plate guiding mechanism is detachably connected to the inner side wall of a side baffle 2 by bolts. The clamping plate structure 4 is arranged between the two clamping plate guiding mechanisms 3, and both sides of the clamping plate structure 4 are slidably connected to a clamping plate guiding mechanism 3 respectively. The bottom of the clamping plate structure 4 is slidably connected to the top of the base 1. The electric cylinder support plate 5 is erected on the top of the two clamping plate guiding mechanisms 3, and the bottom of the electric cylinder support plate 5 is detachably connected to the top of the two clamping plate guiding mechanisms 3 by bolts. The electric cylinder 6 is arranged on the top of the electric cylinder support plate 5, and the length extension direction of the electric cylinder 6 is the same as the length extension direction of the side baffle 2. The cylinder body of the electric cylinder 6 is detachably connected to the top of the electric cylinder support plate 5 through a mounting seat. The piston rod end of the electric cylinder 6 is arranged towards the direction where the catheter insertion hole 11 is located. The end of the piston rod in the electric cylinder 6 is detachably connected to the clamping plate structure 4 by bolts. The electric cylinder 6 serves as a power source to drive the clamping plate structure 4 to perform reciprocating motion between the two clamping plate guiding mechanisms 3 along the length extension direction of the clamping plate guiding mechanisms 3. Other components and connection methods are the same as those in the fifth specific embodiment.

[0040] Specific embodiment seven: Combining Figures 1 to 13Describing this embodiment, the difference between this embodiment and the sixth specific embodiment lies in that the clamping plate guiding mechanism 3 includes a C-shaped groove body 31 and a plurality of first guiding pulleys 32. The C-shaped groove body 31 is arranged on the inner side wall of one side baffle 2, and the closed side of the C-shaped groove body 31 is detachably connected to the side baffle 2 where it is located by bolts. The plurality of first guiding pulleys 32 are sequentially and equidistantly arranged in the C-shaped groove body 31 along the length extension direction of the C-shaped groove body 31, and each first guiding pulley 32 is rotatably connected to the C-shaped groove body 31 through a wheel axle. The outer wheel surface of each first guiding pulley 32 extends outside the C-shaped groove body 31 and contacts one side of the clamping plate structure 4. Each side of the clamping plate structure 4 is slidably connected to the C-shaped groove body 31 through a plurality of first guiding pulleys 32. The bottom of the electric cylinder support plate 5 is detachably connected to the top of the C-shaped groove body 31 by bolts. Other components and connection methods are the same as those in the sixth specific embodiment.

[0041] Specific embodiment eight: Combining Figures 1 to 13 Describing this embodiment, the difference between this embodiment and the seventh specific embodiment lies in that the clamping plate structure 4 includes a main board body 41, an upper connecting plate 42 and two second guiding pulley groups. The main board body 41 is arranged between the two C-shaped groove bodies 31, and each side of the main board body 41 is slidably connected to the corresponding C-shaped groove body 31 through a plurality of first guiding pulleys 32. The upper connecting plate 42 is vertically erected on the top of the main board body 41, and the bottom of the upper connecting plate 42 is fixedly connected to the top of the main board body 41. The end of the piston rod in the electric cylinder 6 is detachably connected to the upper connecting plate 42 by bolts. One end of the main board body 41 facing the catheter insertion hole 11 is processed with an arc-shaped clamping groove, and a flexible rubber 44 is attached to the inner groove surface of the arc-shaped clamping groove. Two pulley grooves 411 are symmetrically processed at the bottom of the main board body 41 along the center line in the width direction of the main board body 41. Each second guiding pulley group is correspondingly arranged in one pulley groove 411. Each second guiding pulley group includes a plurality of second guiding pulleys 43. The plurality of second guiding pulleys 43 are sequentially and equidistantly arranged in the corresponding pulley groove 411 along the length extension direction of the pulley groove 411, and each second guiding pulley 43 is rotatably connected to the side wall of the pulley groove 411 through a wheel axle. The outer wheel surface of each second guiding pulley 43 extends outside the pulley groove 411 and contacts the top of the base 1. The main board body 41 is slidably connected to the top of the base 1 through a plurality of second guiding pulleys 43. Other components and connection methods are the same as those in the seventh specific embodiment.

[0042] As described in Embodiments 6 to 8, the clamping unit is the main inventive point of this application. The clamping plate guiding mechanism 3 composed of the C-shaped groove body 31 and multiple first guiding pulleys 32 can perform trajectory constraint on the clamping plate structure 4, ensuring that the clamping plate structure 4 does not deviate from its trajectory when the electric cylinder 6 pushes it to move. At the same time, in this application, pulley components are used to make the clamping plate structure 4 contact with other parts of the fixing device, aiming to reduce the friction between the clamping plate structure 4 and the clamping plate guiding mechanism 3 and the base 1, and ensuring the smooth movement of the clamping plate structure 4.

[0043] Embodiment 9: As described in Figures 1 to 13 this embodiment, the difference between this embodiment and Embodiment 8 is that the filling hopper supporting mechanism 7 includes a hinge seat 71, a swinging sleeve 72, a cylinder 73, a stiffness spring 74, a contact wheel seat 75 and a contact wheel 76. The hinge seat 71 is arranged at one end of the bottom of the receiving groove 12, and the hinge seat 71 is detachably connected to the bottom of the receiving groove 12 by bolts. One end of the swinging sleeve 72 is arranged in the hinge seat 71 and is hinged to the hinge seat 71 through a hinge shaft. The cylinder body of the cylinder 73 is inserted into the other end of the swinging sleeve 72, and the open end of the cylinder body in the cylinder 73 extends to the outside of the swinging sleeve 72. The contact wheel seat 75 is arranged at the end of the piston rod in the cylinder 73 and is detachably connected to the piston rod in the cylinder 73. The stiffness spring 74 is sleeved outside the piston rod in the cylinder 73. One end of the stiffness spring 74 is connected to the open end of the cylinder body in the cylinder 73, and the other end of the stiffness spring 74 is connected to the bottom of the contact wheel seat 75. The contact wheel 76 is arranged in the contact wheel seat 75 and is rotatably connected to the contact wheel seat 75 through a rotating shaft. The filling hopper supporting mechanism 7 supports the bottom of the filling hopper through the wheel surface of the contact wheel 76. Other compositions and connection methods are the same as those in Embodiment 8.

[0044] Embodiment 10: As described in Figures 1 to 13 this embodiment, the difference between this embodiment and Embodiment 9 is that the filling hopper supporting mechanism 7 is used in cooperation with the side support rod structure 8. When the axis of the filling hopper supporting mechanism 7 is perpendicular to the bottom of the receiving groove 12, the side support rod structure 8 is obliquely arranged between the swinging sleeve 72 and the bottom of the receiving groove 12, and one end of the side support rod structure 8 is detachably connected to the outer side wall of the swinging sleeve 72 by bolts, and the other end of the side support rod structure 8 is detachably connected to the bottom of the receiving groove 12 by bolts; other compositions and connection methods are the same as those in Embodiment 9.

[0045] Combined with the description of Specific Embodiment Nine and Specific Embodiment Ten, the filling hopper support mechanism 7 realizes the adjustment of the overall swinging motion of the filling hopper support mechanism 7 through the cooperation of the hinge seat 71 and the swinging sleeve 72, thereby determining the working state of the filling hopper support mechanism 7. When assembling the conduit, the whole filling hopper support mechanism 7 is hidden in the accommodation groove 12. When cement pouring is required, the filling hopper support mechanism 7 is adjusted to an upright state, and the auxiliary supporting force is provided by the cylinder 73. The stiffness spring 74 can play a certain buffering role and form a damping structure with the cylinder 73. At the same time, in this application, the contact wheel 76 is used to contact the drainage or diversion structure, considering that the outer surface of the drainage or diversion structure is mostly funnel-shaped to ensure the stability of the contact;

[0046] Furthermore, considering that there may be stability defects relying solely on the single upright support of the filling hopper support mechanism 7, a side support rod structure 8 is added on the basis of the filling hopper support mechanism 7. The side support rod structure 8 is obliquely arranged between the filling hopper support mechanism 7 and the accommodation groove 12, and a triangular structure is formed between the filling hopper support mechanism 7 and the accommodation groove 12 to ensure the working stability of the filling hopper support mechanism 7. The side support rod structure 8 includes two hinge seats. One hinge seat is detachably connected to the bottom of the accommodation groove 12, and the other hinge seat is detachably connected to the filling hopper support mechanism 7. The main body of the side support rod structure 8 is a telescopic rod structure or a straight rod structure. Note that for the telescopic rod structure, a telescopic rod structure with a certain damping force should be selected to ensure the stability of its support during work. The two ends of the main body of the side support rod structure 8 are respectively hinged to the two hinge seats during installation, which improves the convenience of installation.

[0047] The present utility model has been disclosed above with preferred embodiments. However, it is not intended to limit the present utility model. Any person skilled in the art, without departing from the technical solution of the present utility model, can make some changes or modifications to the above-disclosed structure and technical content to form equivalent embodiments of equivalent changes. However, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model still fall within the scope of the technical solution of the present utility model.

[0048] Working principle

[0049] When the external hole fixing device for the filling conduit in the bored cast-in-place pile construction described in this application is in use, first, the base 1 is lifted by the lifting mechanism to the vicinity of the pile hole. After ensuring that the conduit insertion hole 11 corresponds coaxially with the pile hole, the base 1 is fixed. The conduit to be assembled is lowered into the pile hole along the conduit insertion hole 11. When splicing the upper-level conduit, the clamping plate structure 4 driven by the electric cylinder 6 fixes the lower-level conduit to ensure its stability. After all the conduit splicing processes are completed, the drainage structure filling hopper used in the filling process is installed on the uppermost conduit. At this time, all four filling hopper support mechanisms 7 in the base 1 are in an upright state, and a stable support structure is formed through the side support rod structure 8 to support the filling hopper. After the filling action is completed, after removing the filling from the uppermost conduit and pulling out all the conduits, the base 1 can be transported to other areas through the lifting mechanism.

Claims

1. An external fixing device for a bored pile construction pipe, characterized in that: The fixing device comprises a base (1), two side baffles (2), two clamping units and four filling bucket supporting mechanisms (7); a catheter insertion hole (11) is processed at the top center of the base (1); a side baffle (2) is respectively provided on both sides of the catheter insertion hole (11); and the side baffles (2) are arranged parallel to each other along a diameter of the opening of the catheter insertion hole (11); the bottom of each side baffle (2) is fixedly connected to the top of the base (1); two clamping units are arranged between the two side baffles (2), and the two clamping units are mutually Two clamping units are arranged on both sides of the catheter insertion hole (11), and are installed on the top of the base (1). Four filling bucket support mechanisms (7) are evenly divided into two filling bucket support groups. Each filling bucket support group is arranged on the outside of a side baffle (2), and the two filling bucket support groups are symmetrically arranged along the catheter insertion hole (11). The two filling bucket support mechanisms (7) in each filling bucket support group are symmetrically arranged along the center line of the length direction of the side baffle (2), and each filling bucket support mechanism (7) is installed on the top of the base (1).

2. The device for fixing the outer hole of the filling pipe in the bored pile construction according to claim 1 is characterized by: The base (1) is a circular platform or a rectangular platform.

3. The device for fixing the outer hole of the cast-in-place pipe in bored pile construction according to claim 1, characterized in that: A slope is processed on the outer contour of the top of the base (1) along the circumferential direction.

4. The device for fixing the outer hole of the filling pipe in the bored pile construction according to claim 1, characterized in that: A receiving groove (12) is machined at the top of the base (1) and at the position corresponding to each filling bucket support mechanism (7); each filling bucket support mechanism (7) is correspondingly arranged in a receiving groove (12), and each filling bucket support mechanism (7) is mounted on the bottom of the receiving groove (12).

5. The device for fixing the outer hole of the filling pipe in the bored pile construction according to claim 1, characterized in that: The top of the base (1) is also provided with two lifting ears (13), the two lifting ears (13) are symmetrically arranged along the catheter insertion hole (11), and the two lifting ears (13) are both threadedly detachably connected to the base (1).

6. The device for fixing the outer hole of the cast-in-place pipe in bored pile construction according to claim 1, characterized in that: The clamping unit comprises a clamping plate structure (4), an electric cylinder support plate (5), an electric cylinder (6) and two clamping plate guide mechanisms (3); the two clamping plate guide mechanisms are arranged parallel and opposite to each other between the two side baffles (2), and each clamping plate guide mechanism is detachably connected to the inner wall of a side baffle (2) by bolts; the clamping plate structure (4) is arranged between the two clamping plate guide mechanisms (3), and the two sides of the clamping plate structure (4) are respectively slidably connected to a clamping plate guide mechanism (3); the bottom of the clamping plate structure (4) is slidably connected to the top of the base (1); the electric cylinder support plate (5) is mounted on the top of the two clamping plate guide mechanisms (3), and the bottom of the electric cylinder support plate (5) is The electric cylinder (6) is detachably connected to the top of the two clamping plate guide mechanisms (3) by bolts. The electric cylinder (6) is arranged on the top of the electric cylinder support plate (5), and the length extension direction of the electric cylinder (6) is the same as the length extension direction of the side baffle (2). The cylinder body of the electric cylinder (6) is detachably connected to the top of the electric cylinder support plate (5) through a mounting seat. The piston rod end of the electric cylinder (6) is arranged in the direction of the catheter insertion hole (11). The end of the piston rod in the electric cylinder (6) is detachably connected to the clamping plate structure (4) by bolts. The electric cylinder (6) serves as a power source to drive the clamping plate structure (4) to reciprocate between the two clamping plate guide mechanisms (3) along the length extension direction of the clamping plate guide mechanisms (3).

7. The device for fixing the outer hole of the cast-in-place pipe in bored pile construction according to claim 6, characterized in that: The clamping plate guide mechanism (3) comprises a C-shaped groove body (31) and a plurality of first guide pulleys (32); the C-shaped groove body (31) is arranged on the inner side wall of a side baffle (2); and the closed side of the C-shaped groove body (31) is detachably connected to the side baffle (2) by bolts; the plurality of first guide pulleys (32) are equidistantly arranged in the C-shaped groove body (31) in sequence along the length extension direction of the C-shaped groove body (31); and each first guide pulley (32) is rotatably connected to the C-shaped groove body (31) by a wheel axle; the outer wheel surface of each first guide pulley (32) extends outside the C-shaped groove body (31) and contacts one side of the clamping plate structure (4); each side of the clamping plate structure (4) is slidably connected to the C-shaped groove body (31) by the plurality of first guide pulleys (32); and the bottom of the electric cylinder support plate (5) is detachably connected to the top of the C-shaped groove body (31) by bolts.

8. The device for fixing the outer hole of the cast-in-place pipe in bored pile construction according to claim 7, characterized in that: The clamping plate structure (4) comprises a main plate body (41), an upper connecting plate (42) and two No. 2 guide pulley groups. The main plate body (41) is arranged between two C-shaped groove bodies (31), and each side of the main plate body (41) is slidably connected to the corresponding C-shaped groove body (31) through a plurality of No. 1 guide pulleys (32). The upper connecting plate (42) is vertically arranged on the top of the main plate body (41), and the bottom of the upper connecting plate (42) is fixedly connected to the top of the main plate body (41). The end of the piston rod in the electric cylinder (6) is detachably connected to the upper connecting plate (42) by bolts. An arc-shaped clamping groove is processed at one end of the main plate body (41) facing the catheter insertion hole (11), and a flexible rubber (44) is processed and attached to the inner groove surface of the arc-shaped clamping groove. The main plate body ( The bottom of the main body (41) is symmetrically processed with two pulley grooves (411) along the center line of the width direction of the main body (41), each No. 2 guide pulley group is correspondingly arranged in one pulley groove (411), and each No. 2 guide pulley group includes a plurality of No. 2 guide pulleys (43), and the plurality of No. 2 guide pulleys (43) are sequentially and equidistantly arranged in the pulley groove (411) along the length extension direction of the pulley groove (411), and each No. 2 guide pulley (43) is rotatably connected to the side wall of the pulley groove (411) through a wheel shaft, and the outer wheel surface of each No. 2 guide pulley (43) extends outside the pulley groove (411) and contacts with the top of the base (1), and the main body (41) is slidably connected to the top of the base (1) through the plurality of No. 2 guide pulleys (43).

9. The device for fixing the outer hole of the cast-in-place pipe in bored pile construction according to claim 1, characterized in that: The filling bucket supporting mechanism (7) comprises an articulated seat (71), a swing sleeve (72), a cylinder (73), a stiffness spring (74), a contact wheel seat (75) and a contact wheel (76); the articulated seat (71) is arranged on one end of the bottom of the accommodating embedded groove (12), and the articulated seat (71) is detachably connected to the bottom of the accommodating embedded groove (12) by bolts; one end of the swing sleeve (72) is arranged in the articulated seat (71) and is articulated with the articulated seat (71) by an articulated shaft; the cylinder body of the cylinder (73) is inserted into the other end of the swing sleeve (72), and the opening end of the cylinder body in the cylinder (73) extends to the swing sleeve (72). 2), a contact wheel seat (75) is arranged at the end of the piston rod in the cylinder (73) and is detachably connected to the piston rod in the cylinder (73), a stiffness spring (74) is sleeved on the outer side of the piston rod in the cylinder (73), one end of the stiffness spring (74) is connected to the open end of the cylinder body in the cylinder (73), and the other end of the stiffness spring (74) is connected to the bottom of the contact wheel seat (75), a contact wheel (76) is arranged in the contact wheel seat (75) and is rotatably connected to the contact wheel seat (75) through a rotating shaft, and the filling bucket support mechanism (7) is in contact with the bottom of the filling bucket through the wheel surface of the contact wheel (76).

10. The device for fixing the outer hole of the cast-in-place pipe in bored pile construction according to claim 9, characterized in that: The filling bucket support mechanism (7) is used in conjunction with the side support rod structure (8). When the axis of the filling bucket support mechanism (7) is perpendicular to the groove bottom of the accommodating embedded groove (12), the side support rod structure (8) is obliquely arranged between the swing sleeve (72) and the groove bottom of the accommodating embedded groove (12), and one end of the side support rod structure (8) is detachably connected to the outer side wall of the swing sleeve (72) by bolts, and the other end of the side support rod structure (8) is detachably connected to the groove bottom of the accommodating embedded groove (12) by bolts.

Images