Pipe pile core grouting auxiliary device

Abstract

The utility model discloses a pipe pile core grouting auxiliary device which comprises an outer sleeve, an annular pipe pile placing block is coaxially and horizontally arranged at the bottom of the outer sleeve, the inner diameter of the pipe pile placing block is the same as the caliber of the bottom of the outer sleeve, and a soft cushion is arranged at the bottom of the pipe pile placing block. The vertical trapezoidal cylindrical inner cylinder is detachably connected with the outer sleeve or the tubular pile placing block, the top end of the inner cylinder is a large-caliber end, the bottom end of the inner cylinder is a small-caliber end, and the large-caliber end of the inner cylinder penetrates through the bottom end of the outer sleeve, extends into the outer sleeve and is in sealed butt joint with the inner wall of the outer sleeve; wherein the outer sleeve and the inner cylinder correspond to tubular piles with different pile diameters. The pipe pile core auxiliary pouring device has the advantages of being capable of being suitable for auxiliary pouring of pipe pile cores with several common pile diameters in the field and high in practicability.

Description

Technical Field

[0001] The utility model relates to the field of pipe pile construction equipment, and more specifically, to a pipe pile core filling auxiliary device. Background Art

[0002] With the advancement of my country's modernization and the needs of the construction market, the production technology and application of prestressed concrete pipe piles in my country have made significant progress. The current production of pipe piles features a rational structure and a comprehensive range of specifications, meeting market demands. Their excellent properties have led to their widespread application in various construction projects over the years, achieving positive economic returns.

[0003] Currently, prefabricated pipe pile cores are poured using methods such as suspending a concrete tower crane hopper with a hoist or pouring directly from a pump truck. This is inconvenient and easily causes contamination of the site and the pile core reinforcement, as well as waste of concrete. Manual cleaning is also required before subsequent construction steps, resulting in waste of manpower, materials, and equipment, and increasing costs. Patent application number 201721785876.7 discloses an auxiliary pouring device for concrete pipe pile cores, comprising a chute and a connecting sleeve. The side of the connecting sleeve is provided with a through hole corresponding to the lower end of the chute. The lower end of the chute is welded to the connecting sleeve. The diameter of the connecting sleeve is larger than the diameter of the concrete pipe pile core hole. The connecting sleeve is externally mounted on the steel cage anchor bars extending from the upper end of the concrete pipe pile core and is placed vertically on top of the concrete pipe pile. This design ensures a spill-free pouring process and ensures that the reserved anchor bars on the upper portion of the steel cage are contaminated. It is practical, reliable, and improves work efficiency. However, the above design is not suitable for auxiliary pouring of pipe pile cores of different pile diameters. Summary of the Invention

[0004] One purpose of the present invention is to solve at least the above problems and provide a pipe pile core grouting auxiliary device, which can be adapted to the auxiliary grouting of pipe pile cores of several commonly used pile diameters in the field and has strong practicality.

[0005] In order to achieve these purposes and other advantages according to the present invention, a pipe pile core filling auxiliary device is provided, comprising:

[0006] An outer sleeve, wherein an annular pipe pile shelf block is coaxially and horizontally provided at the bottom of the outer sleeve, the inner diameter of the pipe pile shelf block is the same as the bottom diameter of the outer sleeve, and a soft cushion is provided at the bottom of the pipe pile shelf block;

[0007] A vertical, trapezoidal cylindrical inner tube is detachably connected to the outer tube or the pipe pile block. The top end of the inner tube is a large-diameter end and the bottom end is a small-diameter end. The large-diameter end of the inner tube passes through the bottom end of the outer tube and extends into the outer tube and is sealed against the lower inner wall of the outer tube. The outer tube and the inner tube correspond to pipe piles of different diameters.

[0008] Preferably, the outer sleeve is a trapezoidal cylindrical cylinder, the top of the outer sleeve is a small-diameter end and forms an observation hole, an infusion hole is opened on the side wall of the outer sleeve, the infusion hole is located above the inner cylinder and close to the inner cylinder, and the infusion hole is connected to an infusion pipe.

[0009] Preferably, a valve is provided on the perfusion pipe; the perfusion pipe comprises an integrally formed inclined pipe and a vertical pipe, the bottom end of the inclined pipe is connected to the perfusion hole, and the top end is connected to the bottom end of the vertical pipe.

[0010] Preferably, the soft pad is a rubber pad.

[0011] Preferably, a pair of through grooves are opened on the rubber pad along the radial direction of the pipe pile shelf block, the notches of the through grooves face downward and are open at both ends along the radial direction of the pipe pile shelf block, a pair of mounting pieces are provided on the side wall of the inner tube near the bottom end, a pair of mounting pieces correspond to the pair of through grooves, when the top of the inner tube abuts the inner wall of the outer sleeve, the mounting pieces extend into the corresponding through grooves and are located below the pipe pile shelf block, the mounting pieces and the pipe pile shelf block where the corresponding through grooves are located are both provided with mounting holes, and bolts are passed through the pair of mounting holes, and nuts are threaded on the protruding ends of the bolts.

[0012] Preferably, a pair of handles is provided on the outer wall of the outer sleeve near the top, and the pair of handles are symmetrical about the central axis of the outer sleeve.

[0013] Preferably, a pair of pressure rods are provided on the circumferential side walls of the pipe pile shelf block, and the pair of pressure rods are symmetrical about the central axis of the pipe pile shelf block.

[0014] The utility model has at least the following beneficial effects:

[0015] By arranging an outer sleeve, a pipe pile shelf block and an inner sleeve, a pipe pile core pouring auxiliary device is provided, which can adapt to the core pouring of several commonly used pipe piles in this field and has strong practicality.

[0016] Other advantages, objectives and features of the present invention will be reflected in part through the following description, and in part will be understood by those skilled in the art through research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1This is a structural diagram of a pipe pile core filling auxiliary device according to one of the technical solutions of the present utility model;

[0018] Figure 2 This is a schematic diagram of the main cross-sectional structure of a pipe pile core filling auxiliary device according to one of the technical solutions of the present invention placed on a pipe pile (the case of installing an inner tube, a pipe pile of one pile diameter);

[0019] Figure 3 This is a schematic diagram of the main cross-sectional structure of the pipe pile core filling auxiliary device according to one of the technical solutions of the present invention placed on the pipe pile (when no inner tube is provided);

[0020] Figure 4 This is a schematic diagram of the main cross-sectional structure of the pipe pile core filling auxiliary device according to one of the technical solutions of the present invention placed on the pipe pile (the case of installing the inner tube, the pipe pile of another pile diameter);

[0021] Figure 5 This is a side sectional view of the connection structure of the pipe pile shelf block, rubber pad, fastening bolts and mounting plate according to one of the technical solutions of the present invention.

[0022] Figure numerals: 1-pile; 2-outer sleeve; 3-inner sleeve; 4-pile shelf; 5-handle; 6-pressure rod; 7-mounting plate; 8-rubber pad; 9-fastening bolt; 10-nut; 11-spring; 12-mounting hole; 13-pouring pipe; 14-valve; 15-anchor steel bar. DETAILED DESCRIPTION

[0023] The present invention will be described in further detail below in conjunction with the accompanying drawings so that those skilled in the art can implement the invention with reference to the description.

[0024] It should be understood that terms such as “having”, “including” and “comprising” used herein do not preclude the existence or addition of one or more other elements or combinations thereof.

[0025] like Figure 1-5 As shown, the utility model provides a pipe pile core filling auxiliary device, comprising:

[0026] The outer sleeve 2 has an annular pipe pile shelf 4 coaxially and horizontally provided at the bottom of the outer sleeve 2. The inner diameter of the pipe pile shelf 4 is the same as the bottom diameter of the outer sleeve 2. A soft cushion is provided at the bottom of the pipe pile shelf 4.

[0027] A vertical, trapezoidal cylindrical inner tube 3 is detachably connected to the outer tube 2 or the pile support block 4. The top end of the inner tube 3 is a large-diameter end, and the bottom end is a small-diameter end. The large-diameter end of the inner tube 3 passes through the bottom end of the outer tube 2 and extends into the outer tube 2, and is in sealed contact with the lower inner wall of the outer tube 2. The outer tube 2 and the inner tube 3 correspond to piles 1 of different diameters.

[0028] In the above technical solution, the outer sleeve 2 is a tube with open ends. The shape of the outer sleeve 2 can be cylindrical or trapezoidal, and the design can be adaptively selected according to actual conditions; the bottom of the outer sleeve 2 is coaxially provided with a pipe pile shelf block 4, which is used to place the outer sleeve 2 on the top of the pipe pile 1 to cover the top of the pipe pile 1 to form protection. The pipe pile shelf block 4 is annular, and the inner diameter of the pipe pile shelf block 4 is consistent with the diameter of the bottom end of the outer sleeve 2. A soft pad is provided at the bottom of the pipe pile shelf block 4. The material of the soft pad can be rubber or silicone, so that when the pipe pile shelf block 4 is placed on the top of the pipe pile 1, the soft pad makes the pipe pile shelf block 4 softly contact with the top wall of the pipe pile 1 and seals as much as possible; the pipe pile shelf block 4 can choose an existing flange or a self-made annular block, and the pipe pile shelf block 4 can also be integrally formed with the outer sleeve 2;

[0029] The inner tube 3 is a trapezoidal cylindrical tube arranged vertically, the top end of the inner tube 3 is a large-diameter end, and the bottom end is a small-diameter end. The inner tube 3 is detachably connected to the outer tube 2, or the inner tube 3 is detachably connected to the pipe pile shelf 4, so that the inner tube 3 can be installed and removed. There are many ways to detachably connect the inner tube 3 to the outer tube 2 or the pipe pile shelf. Here is one way to detachably connect the inner tube 3 to the outer tube 2: a pair of vertical plates (not shown in the figure) are provided on both sides of the inner tube 3, the top ends of the vertical plates are connected to the outer wall of the inner tube 3 through a horizontal plate (not shown in the figure), and a connecting bolt (not shown in the figure) is horizontally screwed on the vertical plate. A friction pad is provided on one end of the connecting bolt close to the inner wall of the outer tube 2. When the connecting bolt is screwed toward the inner wall of the outer tube 2 until it abuts against the inner wall of the outer tube 2, the inner tube 3 is fixed relative to the outer tube 2;

[0030] When the inner tube 3 is connected to the outer tube 2 or the inner tube 3 is connected to the pile shelf 4, the large-diameter end of the inner tube 3 passes through the bottom end of the outer tube 2 and extends into the outer tube 2 and seals against the outer tube 2. Specifically, an elastic sealing layer is provided on the outer wall of the inner tube 3 near the top. The material of the elastic sealing layer can be rubber or silicone. In actual design, an elastic sealing layer can be applied both inside and outside the top edge of the inner tube 3 to protect the top of the inner tube 3, so that when the inner tube 3 is connected to the outer tube 3 or the inner tube 3 is connected to the pile shelf 4, the large-diameter end of the inner tube 3 is sealed against the lower inner wall of the outer tube 2 through the elastic sealing layer, so as to avoid a gap between the inner tube 3 and the outer tube 2, thereby avoiding the waste caused by the poured concrete flowing out of the gap and the contamination of the top wall of the pile by the flowing concrete;

[0031] The outer sleeve 2 and the inner sleeve 3 correspond to the pipe piles 1 of different pile diameters. Specifically, there are multiple inner sleeves 3. When the inner sleeve 3 is connected to the outer sleeve 2, or when the inner sleeve 3 is connected to the pipe pile shelf 4, the small-diameter end of the inner sleeve 3 forms a concrete outlet end. When the inner sleeve 3 is not installed on the outer sleeve 2 or the pipe pile shelf 4, the bottom end of the outer sleeve forms a concrete outlet end. The concrete outlet ends of the multiple inner sleeves 3 and the concrete outlet ends of the outer sleeve 2 correspond to the pile cores of the multiple pipe piles 1 of different pile diameters. When in use, the corresponding inner sleeve 3 is selected according to the inner diameter of the pipe pile 1 and installed on the outer sleeve 2 or the pipe pile shelf 4, or the inner sleeve 3 is not installed. When the inner sleeve 3 is installed, the inner sleeve 3 is installed on the outer sleeve 2 or on the pipe pile shelf 4 At this time, the inner diameter of the small-diameter end of the inner tube 3 is selected to be consistent with or slightly smaller than the inner diameter of the pipe pile 1 to be poured (for example, 2-10 mm smaller). In this way, when the pipe pile shelf 4 is placed on the top of the pipe pile 1, the inner tube 3 and the pipe pile 1 are coaxial, and the bottom of the inner tube 3 contacts the top of the pipe pile 1 or the bottom of the inner tube 3 extends into the pipe pile 1. Then, when concrete is poured into the outer sleeve 2, the concrete enters the interior of the pipe pile 1 from the concrete outlet end to implement pile core pouring. When the inner tube 3 is not provided, the bottom diameter of the outer sleeve 2 is consistent with the inner diameter of the pipe pile 1 to be poured. When the pipe pile shelf 4 is placed on the top of the pipe pile 1, the outer sleeve 2 and the pipe pile 1 are coaxial. Concrete is poured into the outer sleeve 2 (the top of the outer sleeve 2 is open to form a pouring hole), and pile core pouring can be implemented.

[0032] In this technical solution, before designing the device, the outer diameter, wall thickness and inner diameter of several commonly used pipe piles 1 in the field are first counted (see Table 1 below). Table 1 below shows the dimensional parameters of three commonly used pipe piles 1 in the field. In actual design, the inner diameter of the pipe pile shelf 4 can be designed to be 300mm and the outer diameter to be 500mm, that is, the bottom diameter of the outer sleeve 2 is 300mm, and two inner sleeves 3 are designed, with the diameter of the small-diameter end of one inner sleeve 3 being designed to be 210mm and the other being designed to be 250mm. In this way, the two inner sleeves 3 and one outer sleeve 2, it can meet the requirements of the three types of pile core grouting construction commonly used in this field. When using this device, the inner tube 3 is selected and installed on the outer tube 2 according to the inner diameter of the pile 1, or the inner tube 3 is not selected. Then the pile support block 4 is placed on the top of the pile 1. Then, the construction worker presses the outer tube 2 with both hands so that the outer tube 2 can be sealed against the bottom of the pile 1 through the pile support block 4 and the soft cushion at the bottom to minimize the overflow of concrete during concrete pouring. Then, concrete is poured into the outer tube 2 (from the top port of the outer tube 2), and the pile core grouting is carried out.

[0033] Table 1 Dimensional parameters of three commonly used pipe piles in this field

[0034]

[0035] The beneficial effect of adopting this technical solution is that, by setting the outer sleeve 2, the pipe pile block 4 and the inner sleeve 3, a pipe pile core pouring auxiliary device is provided, which can adapt to the core pouring of several commonly used pipe piles 1 in this field and has strong practicality.

[0036] In another technical solution, the outer sleeve 2 is a trapezoidal cylindrical cylinder, the top of the outer sleeve 2 is a small-diameter end and forms an observation hole, a pouring hole is opened on the side wall of the outer sleeve 2, the pouring hole is located above the inner cylinder 3 and close to the inner cylinder 3, and the pouring hole is connected to the pouring pipe 13; specifically, the outer sleeve 2 is a trapezoidal cylindrical cylinder with a small upper part and a large lower part, and a pouring hole is opened on the side wall of the outer sleeve 2 near the inner cylinder 3, and the pouring hole is connected to the pouring pipe 13. When in use, concrete is poured from the end of the pouring pipe 13 away from the outer sleeve 2. Such a design, On the one hand, the shape design of the outer sleeve 2, which is small at the top and large at the bottom, can avoid concrete splashing out from the observation hole during the pouring process as much as possible. At the same time, the construction personnel can also observe the concrete pouring situation in the pipe pile 1 from the observation hole, so as to respond to abnormal situations in time. On the other hand, concrete is poured from near the inner tube 3. Since the inner tube 3 is located at the lower part of the outer sleeve 2, the contact area between the poured concrete and the anchor steel bar 15 extending out of the pipe pile 1 can be minimized, thereby reducing the contamination of the steel bars caused by the concrete splashing on the anchor steel bar 15 extending out of the pipe pile 1, and reducing the subsequent cleaning workload.

[0037] In another technical solution, a valve 14 is provided on the pouring pipe 13; the pouring pipe 13 includes an integrally formed inclined pipe and a vertical pipe, the bottom end of the inclined pipe is connected to the pouring hole, and the high end is connected to the low end of the vertical pipe; specifically, the valve 14 can be set on the inclined pipe or the vertical pipe. When in use, the valve 14 is opened, and concrete is poured from the top of the vertical pipe. The concrete enters the inner tube 3 after passing through the vertical pipe and the inclined pipe, and enters the pipe pile 1 from the inner tube 3. When the pouring is completed, the valve 14 is closed. With this design, on the one hand, the pouring pipe 13 composed of the inclined pipe and the vertical pipe can avoid concrete splashing out from the pouring pipe 13 and affecting the surrounding environment as much as possible. On the other hand, the design of the valve 14 can play a role in timely closing the pouring pipe 13 to avoid waste of concrete.

[0038] In another technical solution, the soft pad is a rubber pad 8; adopting this technical solution has the beneficial effect of selecting the rubber pad 8 as the soft pad, which is easy to obtain and low in cost, and has good protection and sealing abutment effects.

[0039] In another technical solution, a pair of through grooves are opened on the rubber pad 8 along the radial direction of the pipe pile shelf block 4, the notches of the through grooves face downward and are open at both ends along the radial direction of the pipe pile shelf block 4, a pair of mounting pieces 7 are provided on the side wall of the inner tube 3 near the bottom end, and the pair of mounting pieces 7 correspond to the pair of through grooves. When the top of the inner tube 3 abuts the inner wall of the outer sleeve 2, the mounting pieces 7 extend into the corresponding through grooves and are located below the pipe pile shelf block 4. The mounting pieces 7 and the pipe pile shelf block 4 where the corresponding through grooves are located are both provided with mounting holes 12, and bolts are passed through the pair of mounting holes 12, and nuts 10 are screwed on the protruding ends of the bolts;

[0040] In this technical solution, a pair of through grooves are provided on the rubber pad 8, each of which is arranged along the radial direction of the pipe pile shelf 4, the notch of the through groove is downward and the two ends of the through groove are open along the radial direction of the pipe pile 1. Specifically, the rubber pad 8 at the bottom of the pipe pile shelf 4 can be regarded as two arc-shaped pads, and the through groove is formed between the ports in the same direction of the two arc-shaped pads. Such an arrangement does not interfere with the installation of the inner tube 3; a pair of mounting pieces 7 are provided on the outer wall of the inner tube 3, and a pair of mounting pieces 7 are arranged along the radial direction of the inner tube 3. The pair of mounting pieces 7 correspond to the pair of through grooves. When the inner tube 3 extends from the bottom end of the outer tube 2 into the interior of the outer tube 2 and the inner tube 3 When the top end of the outer sleeve 2 is in sealing contact with the inner wall of the outer sleeve 2, the mounting piece 7 is located in the corresponding through groove and is located below the pipe pile shelf 4; the mounting piece 7 and the pipe pile shelf 4 where the corresponding through groove are located are both provided with mounting holes 12, and a pair of corresponding mounting holes 12 are penetrated by bolts, which are fastening bolts 9. The outlet end of the fastening bolt 9 is located above the pipe pile shelf 4, and a nut 10 is fastened and screwed on the outlet end of the bolt; the thickness of the rubber pad 8 is designed to cover the head of the bolt, so that when the rubber pad 8 is placed on the top of the pipe pile 1, the rubber pad 8 can be in close contact with the top of the pipe pile 1;

[0041] When the top of the inner tube 3 is in sealing contact with the inner wall of the outer tube 2, the mounting plate 7 can be designed to be tightly attached to the bottom of the pipe pile shelf 4, or there is a certain distance between the mounting plate 7 and the bottom of the pipe pile shelf 4. When there is a certain distance between the mounting plate 7 and the pipe pile shelf 4, a pair of springs 11 can be provided at the bottom of the pipe pile shelf 4, one end of the spring 11 is connected to the bottom of the pipe pile shelf 4 and the other end is suspended. The pair of springs 11 correspond to the pair of mounting holes 12 on the pipe pile shelf 4. The springs 11 are coaxial with the corresponding mounting holes 12, and the inner diameter of the springs 11 is larger than the diameter of the mounting holes 12. In this way, when the inner tube 3 is installed, the inner tube 3 extends from the bottom of the outer tube 2 into the interior of the outer tube 2 until the top of the inner tube 3 abuts against the inner wall of the outer tube 2. The fastening bolts 9 are sequentially passed through the mounting holes 12 on the mounting plate 7, the springs 11, and the mounting holes 12 on the pipe pile shelf 4, and then tightened by the nuts 10. The design of the springs 11 makes the connection between the inner tube 3 and the outer tube 2 tighter.

[0042] In this technical solution, when in use, the top end of the inner tube 3 is first extended into the outer tube 2 from the bottom end of the outer tube 2 until the top of the inner tube 3 abuts against the inner wall of the outer tube 2, and then the fastening bolts 9 are passed through the corresponding pair of mounting holes 12 and fastened by the nuts 10, thus completing the installation of the inner tube 3; the beneficial effect obtained by adopting this technical solution is that, by designing the through groove, mounting plate 7, mounting hole 12, fastening bolts 9, and nut 10, a connection structure with a detachable connection between the inner tube 3 and the pile shelf block 4 is provided, which is convenient for manual operation by construction personnel, and is easy to install and disassemble and convenient to use.

[0043] In another technical solution, a pair of handles 5 are provided on the outer wall of the outer sleeve 2 near the top, and the pair of handles 5 are symmetrical about the central axis of the outer sleeve 2; specifically, the pair of handles 5 are horizontally arranged, and the pair of handles 5 are symmetrical about the central axis of the outer sleeve 2. When in use, the construction workers can hold the pair of handles 5 with both hands, lift the outer sleeve 2 and move it, which is convenient for transferring the outer sleeve 2 or placing the outer sleeve 2 on the pipe pile 1, and is more convenient to use.

[0044] In another technical solution, a pair of pressure rods 6 are provided on the circumferential side walls of the pipe pile shelf block 4, and the pair of pressure rods 6 are symmetrical about the central axis of the pipe pile shelf block 4; specifically, the pair of pressure rods 6 are arranged horizontally. When in use, the construction workers can step on the pressure rods 6 to make the entire outer sleeve 2 seal and abut against the top of the pipe pile 1, thereby avoiding overflow of concrete during pouring due to the gap between the pipe pile shelf block 4 and the top of the pipe pile 1.

[0045] The number of devices and processing scales described here are used to simplify the description of the present invention. Applications, modifications and variations of the present invention's pipe pile core filling auxiliary device are obvious to those skilled in the art.

[0046] Although the embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the description and implementation methods. They can be fully applied to various fields suitable for the present invention. For those familiar with this field, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and illustrations shown and described herein.

Claims

1. Auxiliary device for core filling of piles, characterized in that: include: An outer sleeve, wherein an annular pipe pile shelf block is coaxially and horizontally provided at the bottom of the outer sleeve, the inner diameter of the pipe pile shelf block is the same as the bottom diameter of the outer sleeve, and a soft cushion is provided at the bottom of the pipe pile shelf block; A vertical, trapezoidal cylindrical inner tube is detachably connected to the outer tube or the pipe pile block. The top end of the inner tube is a large-diameter end and the bottom end is a small-diameter end. The large-diameter end of the inner tube passes through the bottom end of the outer tube and extends into the outer tube and is sealed against the lower inner wall of the outer tube. The outer tube and the inner tube correspond to pipe piles of different diameters.

2. The pipe pile core filling auxiliary device according to claim 1, characterized in that: The outer sleeve is a trapezoidal cylindrical cylinder, the top of the outer sleeve is a small-diameter end and forms an observation hole, a perfusion hole is opened on the side wall of the outer sleeve, the perfusion hole is located above the inner cylinder and close to the inner cylinder, and the perfusion hole is connected to a perfusion pipe.

3. The pipe pile core filling auxiliary device according to claim 2, characterized in that: The perfusion pipe is provided with a valve; the perfusion pipe comprises an integrally formed inclined pipe and a vertical pipe, the bottom end of the inclined pipe is communicated with the perfusion hole, and the top end is communicated with the bottom end of the vertical pipe.

4. The pipe pile core filling auxiliary device according to claim 1, characterized in that: The soft pad is a rubber pad.

5. The pipe pile core filling auxiliary device according to claim 4, characterized in that: A pair of through grooves are provided on the rubber pad along the radial direction of the pipe pile shelf block, the notches of the through grooves are downward and the two ends of the radial direction of the pipe pile shelf block are open, a pair of mounting pieces are provided on the side wall of the inner tube near the bottom end, the pair of mounting pieces correspond to the pair of through grooves, when the top of the inner tube abuts against the inner wall of the outer sleeve, the mounting pieces extend into the corresponding through grooves and are located below the pipe pile shelf block, the mounting pieces and the pipe pile shelf block where the corresponding through grooves are located are both provided with mounting holes, and bolts are passed through the pair of mounting holes, and nuts are screwed on the protruding ends of the bolts.

6. The pipe pile core filling auxiliary device according to claim 1, characterized in that: A pair of handles is provided on the outer wall of the outer sleeve near the top, and the pair of handles are symmetrical about the central axis of the outer sleeve.

7. The pipe pile core filling auxiliary device according to claim 1, characterized in that: A pair of pressure rods are provided on the circumferential side walls of the pipe pile shelf block, and the pair of pressure rods are symmetrical about the central axis of the pipe pile shelf block.

Images