Device for solving installation problem of oil pipe in pile through self-balancing method

Abstract

The utility model discloses a device for solving the problem of installation of an oil pipe in a pile through a self-balancing method. The device comprises a connecting rod sliding block mechanism, a pulley structure, a rotating box and a ratchet wheel structure. The rotating box comprises an upper rotating disc box and a lower rotating disc box, the upper rotating disc box is rotationally installed on the lower rotating disc box through a rotating shaft, a pulley structure used for winding an oil pipe led out of the load box in advance is fixedly installed on the top face of the rotating box, and a plurality of connecting rod sliding block mechanisms are installed on the bottom face of the rotating box. The other end of each connecting rod sliding block mechanism is provided with a ratchet wheel structure. The whole process is time-saving and labor-saving, oil pipes do not need to be inserted manually, the device is high in adaptability, and the device can be adjusted according to different diameters of reinforcement cages, the number and the position of the oil pipes and the position of main reinforcements.

Description

Technical Field

[0001] The utility model belongs to the technical field of pile foundation bearing capacity detection, and particularly relates to a device for solving the problem of installing oil pipes inside a pile by the self-balanced method. Background Technique

[0002] The self-balanced method is a method for detecting the vertical bearing capacity of a pile foundation. The main principle is that before the test, a load cell needs to be placed at the balance point of the pile body. Two upper displacement rods, two lower displacement rods and oil pipes are arranged on the load cell. During the test, the load cell is pressurized through the oil pipes. The upper displacement rod of the upper section of the pile moves upward, and the lower displacement rod of the lower section of the pile moves downward. Finally, the Q-S curve of the test result can be converted into the Q-S curve of the traditional static load.

[0003] At present, in pile foundation projects, the length of the steel reinforcement cage is relatively long. Limited by the conditions of transportation and hoisting equipment, the steel reinforcement cage will be divided into two or three sections and spliced and installed during the process of lowering the lower steel reinforcement cage. At this time, the oil pipes led out from the self-balanced load cell cannot be connected to the main steel bars of the steel reinforcement cage in advance, and it is also quite laborious to install the oil pipes when lowering the cage. The large number of oil pipes requires a large number of installers. It is necessary to thread the oil pipes when the steel reinforcement cage is lowered about 2m. Moreover, if the personnel are negligent, the oil pipes will fall into the mud in the pile, which greatly affects the project progress.

[0004] Since using a completely manual method to install the oil pipes not only requires a large number of personnel but also is extremely slow, it has become crucial to solve this problem. Content of the Utility Model

[0005] The main purpose of the utility model is to overcome the deficiencies of the prior art and provide a device for solving the problem of installing oil pipes inside a pile by the self-balanced method.

[0006] The utility model is realized through the following technical solutions:

[0007] A device for solving the problem of installing oil pipes inside a pile by the self-balanced method, comprising: a connecting rod slider mechanism, a pulley structure, a rotating box and a ratchet structure;

[0008] The rotating box includes an upper turntable box and a lower turntable box. The upper turntable box is rotatably installed on the lower turntable box through a rotating shaft. The top surface of the rotating box is fixedly installed with a pulley structure for pre-winding the oil pipes led out from the load cell. A plurality of connecting rod slider mechanisms are installed on the bottom surface of the rotating box, and the other end of each connecting rod slider mechanism is installed with a ratchet structure.

[0009] In the above technical solution, the rotating box is of a disc-shaped structure, including a rotating bolt, an upper turntable box, a handle and a lower turntable box. The upper turntable box is connected to the lower turntable box through the rotating bolt.

[0010] In the above technical solution, four grips are annularly arrayed on the annular side wall of the rotating box, and a hook is provided on the top surface of the rotating box.

[0011] In the above technical solution, the pulley structure includes a pulley base, a fixing bolt, a pulley, a pulley rotating shaft, and a pulley protective shell; the pulley base includes two right-angle connecting pieces, each right-angle connecting piece is provided with two bolt holes on the bottom surface and a rotating shaft hole on the vertical surface, the two right-angle connecting pieces are symmetrically arranged, and the right-angle connecting pieces are fixedly installed on the top surface of the rotating box through the fixing bolts inserted into the bolt holes on their bottom surfaces to form a pulley base, the pulley rotating shaft is fixedly installed in the rotating shaft holes of the two front and rear symmetrically arranged right-angle connecting pieces, the pulley is rotatably installed on the pulley rotating shaft, and the pulley protective shell is installed on the pulley.

[0012] In the above technical solution, the connecting rod slider mechanism includes a long connecting rod base, a long connecting rod, a short connecting rod base, a short connecting rod, two connecting rod base rotating shafts, a slider, a slider fixing bolt, and a slider rotating shaft; the long connecting rod base is fixedly installed on the bottom surface far from the center of the rotating box, one end of the long connecting rod is rotatably installed on the long connecting rod base through the connecting rod base rotating shaft, and the other end is connected to the ratchet structure.

[0013] In the above technical solution, the slider is installed on the long connecting rod through the slider fixing bolt, and a slider rotating shaft for rotatably installing the short connecting rod is provided thereon; the short connecting rod base is fixedly installed on the bottom surface close to the center of the rotating box, one end of the short connecting rod is rotatably installed on the short connecting rod base through the connecting rod base rotating shaft, and the other end is rotatably installed on the slider rotating shaft.

[0014] In the above technical solution, the ratchet structure includes a pawl rotating shaft, a pawl, a sliding wheel rotating shaft, a sliding wheel, ratchet teeth, and a T-shaped connecting rod; the T-shaped connecting rod is connected to the other end of the long connecting rod of the connecting rod slider mechanism.

[0015] In the above technical solution, a sliding wheel rotating shaft installation hole is provided on the T-shaped connecting rod, the sliding wheel rotating shaft is installed in the sliding wheel rotating shaft installation hole, the sliding wheel is rotatably installed on the sliding wheel rotating shaft, and a concave structure for facilitating fitting with the main reinforcement is provided on the outer edge of the sliding wheel.

[0016] In the above technical solution, the ratchet teeth are fixedly installed at both ends of the sliding wheel; a pawl rotating shaft is provided on the T-shaped connecting rod, the upper end of the pawl is installed on the T-shaped connecting rod through the pawl rotating shaft, and the lower end of the pawl abuts against the outer edge of the ratchet teeth.

[0017] The beneficial effects of the present utility model are:

[0018] (1) The utility model ensures that the device is difficult to move downward by setting a ratchet structure. At the same time, the hook of the device is hung by the small arm of the crane or the operator holds the handle of the device, which further ensures that the device is difficult to move downward, providing double guarantees.

[0019] (2) The utility model can flexibly adjust the position of the ratchet structure by setting a connecting rod slider mechanism, so that the ratchet structure can closely adhere to the steel reinforcement cage, making it more convenient to tie the oil pipe.

[0020] (3) The whole process of the utility model saves time and effort, and does not require manual insertion of the oil pipe. Moreover, the device has strong adaptability and can be adjusted according to the different diameters of the steel reinforcement cage, the number and position of the oil pipes, and the position of the main steel bars. Description of the Drawings

[0021] Figure 1 is the front view of the utility model.

[0022] Figure 2 is the top view of the utility model.

[0023] Figure 3 is the front view of the connecting rod slider mechanism of the utility model.

[0024] Figure 4 is the rear view of the connecting rod slider mechanism of the utility model.

[0025] Figure 5 is the front view of the pulley structure of the utility model.

[0026] Figure 6 is the side view of the pulley structure of the utility model.

[0027] Figure 7 is the front view of the rotating box of the utility model.

[0028] Figure 8 is the top view of the rotating box of the utility model.

[0029] Figure 9 is the front view of the ratchet structure of the utility model.

[0030] Figure 10 is the side view of the ratchet structure of the utility model.

[0031] In the figure:

[0032] 1. Main steel bars of the steel reinforcement cage 2. Oil pipe 3. Connecting rod slider mechanism

[0033] 4. Stirrups of the steel reinforcement cage 5. Hook 6. Pulley structure

[0034] 7. Rotating box 8. Ratchet structure 9. Long connecting rod base

[0035] 10. Long connecting rod 11. Slide block fixing bolt 12. Slide block

[0036] 13. Short connecting rod base 14. Connecting rod base rotating shaft 15. Short connecting rod

[0037] 16. Slide block rotating shaft 17. Pulley protection case 18. Pulley

[0038] 19. Pulley base 20. Pulley rotating shaft 21. Fixing bolt

[0039] 22. Rotating bolt 23. Upper turntable box 24. Handle

[0040] 25. Lower turntable box 26. Pawl rotating shaft 27. Ratchet teeth

[0041] 28. Pawl 29. Sliding wheel rotating shaft 30. Sliding wheel

[0042] 31. T-shaped connecting rod

[0043] For those of ordinary skill in the art, without creative efforts, other relevant drawings can be obtained based on the above drawings. Specific embodiments

[0044] In order to enable those in the technical field to better understand the solution of the present utility model, the technical solution of the present utility model will be further described below in conjunction with specific embodiments.

[0045] Embodiment 1

[0046] A device for solving the problem of installing the oil pipe inside the pile by the self-balancing method, see the attached Figures 1-10 , including: a connecting rod and slide block mechanism 3, a pulley structure 6, a rotating box 7 and a ratchet structure 8.

[0047] The rotating box 7 includes an upper turntable box 23 and a lower turntable box 25. The upper turntable box 23 is rotatably installed on the lower turntable box 25 through a rotating shaft. The pulley structure 6 for pre-winding the oil pipe 2 led out from a load box (not shown in the figure) is fixedly installed on the top surface of the rotating box 7. A plurality of connecting rod and slide block mechanisms 3 are installed on the bottom surface of the rotating box 7. The other end of each connecting rod and slide block mechanism 3 is installed with a ratchet structure 8. The ratchet structure 8 is used to fit with the main reinforcement bars 1 of the steel cage. The steel cage is formed by connecting a plurality of main reinforcement bars 1 of the steel cage through steel cage stirrups 4. A load box is arranged on the steel cage, and a plurality of oil pipes 2 are led out from the load box.

[0048] See the attached Figures 7-8, the rotating box 7 has a disc-shaped structure and includes a rotating bolt 22, an upper turntable box 23, a grip 24, and a lower turntable box 25. The upper turntable box 23 is connected to the lower turntable box 25 by the rotating bolt 22, and the upper turntable box 23 can rotate relative to the lower turntable box 25. Four of the grips 24 are annularly arrayed on the annular side wall of the rotating box 7.

[0049] See the appendix Figures 5-6 , the pulley structure 6 includes a pulley base 19, a fixing bolt 21, a pulley 18, a pulley rotating shaft 20, and a pulley protection shell 17; the pulley base 19 includes two right-angle connecting pieces 13. Two bolt holes (not shown in the figure) are provided on the bottom surface of each right-angle connecting piece 13, and a rotating shaft hole (not shown in the figure) is provided on the vertical surface. The two right-angle connecting pieces 13 are symmetrically arranged, and the right-angle connecting pieces 13 are fixedly installed on the top surface of the rotating box 7 by inserting the fixing bolt 21 into the bolt holes (not shown in the figure) on their bottom surfaces to form the pulley base 19. The pulley rotating shaft 20 is fixedly installed in the rotating shaft holes (not shown in the figure) of two symmetrically arranged right-angle connecting pieces 13 at the front and back. The pulley 18 is rotatably installed on the pulley rotating shaft 20, and the pulley protection shell 17 is installed on the pulley 18.

[0050] See the appendix Figures 3-4 , the connecting rod slider mechanism 3 includes a long connecting rod base 9, a long connecting rod 10, a short connecting rod base 13, a short connecting rod 15, two connecting rod base rotating shafts 14, a slider 12, a slider fixing bolt 11, and a slider rotating shaft 16; the long connecting rod base 9 is fixedly installed on the bottom surface far from the center of the rotating box 7. One end of the long connecting rod 10 is rotatably installed on the long connecting rod base 9 through the connecting rod base rotating shaft 14, and the other end is connected to the ratchet structure 8; the slider 12 is installed on the long connecting rod 10 through the slider fixing bolt 11, and a slider rotating shaft 16 for rotatably installing the short connecting rod 15 is provided thereon; the short connecting rod base 13 is fixedly installed on the bottom surface close to the center of the rotating box 7. One end of the short connecting rod 15 is rotatably installed on the short connecting rod base 13 through the connecting rod base rotating shaft 14, and the other end is rotatably installed on the slider rotating shaft 16; when it is necessary to adjust the rotation angle of the long connecting rod 10 around the connecting rod base rotating shaft 14, loosen the slider fixing bolt 11 on the slider 12, and the short connecting rod 15 can rotate towards or away from the center of the steel reinforcement cage. At this time, the slider 12 connected to the short connecting rod 15 can move towards or away from the center of the steel reinforcement cage, thereby driving the long connecting rod 10 to rotate towards or away from the center of the steel reinforcement cage. When the angle of the long connecting rod 10 is adjusted to the appropriate angle, tighten the slider fixing bolt 11 again, so that the connecting rod slider mechanism 3 can be fixed and maintained at the required rotation angle.

[0051] See the appendixFigures 9-10 , the ratchet structure 8 includes a pawl rotating shaft 26, a pawl 28, a sliding wheel rotating shaft 29, a sliding wheel 30, ratchet teeth 27 and a T-shaped connecting rod 31; the T-shaped connecting rod 31 is connected to the other end of the long connecting rod 10 of the connecting rod slider mechanism 3; a sliding wheel rotating shaft mounting hole (not shown in the figure) is provided on the T-shaped connecting rod 31, the sliding wheel rotating shaft 29 is mounted in the sliding wheel rotating shaft mounting hole (not shown in the figure), the sliding wheel 30 is rotatably mounted on the sliding wheel rotating shaft 29, a concave structure for facilitating fitting with the main reinforcement 1 is provided on the outer edge of the sliding wheel 30, and the ratchet teeth 27 are fixedly mounted at both ends of the sliding wheel 30; a pawl rotating shaft 26 is provided on the T-shaped connecting rod 31, the upper end of the pawl 28 is mounted on the T-shaped connecting rod 31 through the pawl rotating shaft 26, and the lower end of the pawl 28 abuts against the outer edge of the ratchet teeth 27; when the steel reinforcement cage is lowered, the sliding wheel 30 drives the ratchet teeth 27 to rotate clockwise, and when the steel reinforcement cage moves to the required position, the pawl 28 is stuck on the ratchet teeth 27 to limit the reverse rotation of the ratchet teeth 27, and the ratchet structure 8 cannot move downward under the action of gravity.

[0052] Among them, a hook 5 for facilitating the installation of a device for solving the problem of self-balanced method pile internal oil pipe installation is fixedly connected to the rotating box 7.

[0053] Embodiment 2

[0054] This embodiment provides a construction method of a device for solving the problem of self-balanced method pile internal oil pipe installation, including the following steps:

[0055] Step 1, install a load box on the first section of the steel reinforcement cage (the upper and lower ends of the load box are respectively connected to the steel reinforcement cage to form the first section of the steel reinforcement cage to be lowered);

[0056] Step 2, determine the number of pulley structures 6 according to the number of oil pipes led out from the load box, and install the pulley structures 6 on the top surface of the turntable box 7; determine the number of connecting rod slider mechanisms 3 according to the number of main reinforcements 1 of the steel reinforcement cage, and install the connecting rod slider mechanisms 3 on the bottom surface of the turntable box 7, and connect the ratchet structure 8 to the outer end of the connecting rod slider mechanism 3;

[0057] Step 3, adjust the position of the connecting rod slider mechanism 3 so that the connected ratchet structure 8 is closely attached to the main reinforcement of the first section of the steel reinforcement cage; adjust the upper turntable box 23 of the turntable box 7 so that the pulley structure 3 installed thereon corresponds to the position of the oil pipe, and wind the oil pipe 2 led out from the load box around the pulley 18;

[0058] Step 4: Vertically lower the first section of the steel reinforcement cage with a crane. During the process of lowering the steel reinforcement cage, keep the height of the device for solving the problem of installing the oil pipe inside the self-balanced pile unchanged, always 1 - 2 m higher than the hole opening. During the process of lowering the steel reinforcement cage, the oil pipe 2 will gradually be dragged out from the pulley 18, and at the same time, the operator will tie the oil pipe 2 step by step from the bottom to the top of the steel reinforcement cage (that is, tie the oil pipe 2 to the steel reinforcement cage).

[0059] Step 5: When the top of the first section of the steel reinforcement cage is lowered to a position 2 m higher, splice the next section of the steel reinforcement cage at its top. During the splicing process, the device for solving the problem of installing the oil pipe inside the self-balanced pile can be temporarily lowered inside the top of the first section of the steel reinforcement cage. After the splicing is completed, then lift the device to a proper height and keep it unchanged.

[0060] Step 6: Continue to lower the steel reinforcement cage and splice the next section of the steel reinforcement cage according to the operations in Step 4 and Step 5 until the load box is lowered in place. During the process of lowering the steel reinforcement cage, keep the height of the device for solving the problem of installing the oil pipe inside the self-balanced pile unchanged, always 1 - 2 m higher than the hole opening.

[0061] For ease of explanation, in the embodiments, spatial relative terms such as "upper", "lower", "left", "right", etc. are used to describe the relationship of one element or feature shown in the figure relative to another element or feature. It should be understood that, in addition to the orientations shown in the figure, the spatial terms are intended to include different orientations during the use or operation of the device. For example, if the device in the figure is inverted, the element described as being "lower" than other elements or features will be positioned "above" other elements or features. Therefore, the exemplary term "lower" can include both upper and lower orientations. The device can be positioned in other ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used here can be interpreted accordingly.

[0062] Moreover, relational terms such as "first" and "second" are only used to distinguish one component with the same name from another, and do not necessarily require or imply any such actual relationship or order between these components.

[0063] The above has made an exemplary description of the present invention. It should be noted that without departing from the core of the present invention, any simple deformation, modification, or equivalent replacement that can be made by those skilled in the art without creative labor falls within the protection scope of the present invention.

Claims

1. A device for solving the problem of installing the inner oil pipe in a self-balanced pile, characterized in that: Comprising: A connecting rod slider mechanism, a pulley structure, a rotating box and a ratchet structure; The rotating box includes an upper turntable box and a lower turntable box. The upper turntable box is rotatably mounted on the lower turntable box through a rotating shaft. A pulley structure for pre-winding the oil pipe led out from the load box is fixedly mounted on the top surface of the rotating box. A plurality of connecting rod slider mechanisms are mounted on the bottom surface of the rotating box, and the other end of each connecting rod slider mechanism is mounted with a ratchet structure.

2. The device for solving the problem of installing the inner oil pipe in the self-balanced pile according to claim 1, wherein: The rotating box is of a disc-shaped structure and includes a rotating bolt, an upper turntable box, a handle and a lower turntable box. The upper turntable box is connected to the lower turntable box through the rotating bolt.

3. The device for solving the problem of installing the inner oil pipe in the self-balancing method pile according to claim 2, wherein: Four of the handles are annularly arrayed on the annular side wall of the rotating box, and a hook is provided on the top surface of the rotating box.

4. A device for solving the problem of installing the inner oil pipe in a self-balancing method pile according to claim 1, characterized in that: The pulley structure includes a pulley base, a fixing bolt, a pulley, a pulley rotating shaft and a pulley protective shell; the pulley base includes two right-angle connecting pieces. Two bolt holes are provided on the bottom surface of each right-angle connecting piece, and a rotating shaft hole is provided on the vertical surface. The two right-angle connecting pieces are symmetrically arranged, and the right-angle connecting pieces are fixedly mounted on the top surface of the rotating box by inserting fixing bolts into the bolt holes on their bottom surfaces to form a pulley base. The pulley rotating shaft is fixedly mounted in the rotating shaft holes of the two front-and-back symmetrically arranged right-angle connecting pieces. The pulley is rotatably mounted on the pulley rotating shaft, and the pulley protective shell is mounted on the pulley.

5. A device for solving the problem of installing the inner oil pipe in a self-balancing pile according to claim 1, characterized in that: The connecting rod slider mechanism includes a long connecting rod base, a long connecting rod, a short connecting rod base, a short connecting rod, two connecting rod base rotating shafts, a slider, a slider fixing bolt and a slider rotating shaft; the long connecting rod base is fixedly mounted on the bottom surface far from the center of the rotating box. One end of the long connecting rod is rotatably mounted on the long connecting rod base through a connecting rod base rotating shaft, and the other end is connected to the ratchet structure.

6. The device for solving the problem of installing the inner oil pipe in the self-balancing method pile according to claim 5, wherein: The slider is mounted on the long connecting rod through a slider fixing bolt, and a slider rotating shaft for rotatably mounting the short connecting rod is provided thereon; the short connecting rod base is fixedly mounted on the bottom surface close to the center of the rotating box. One end of the short connecting rod is rotatably mounted on the short connecting rod base through a connecting rod base rotating shaft, and the other end is rotatably mounted on the slider rotating shaft.

7. A device for solving the problem of installing the inner oil pipe in a self-balancing method pile according to claim 1, characterized in that: The ratchet structure includes a pawl rotating shaft, a pawl, a sliding wheel rotating shaft, a sliding wheel, ratchet teeth and a T-shaped connecting rod; the T-shaped connecting rod is connected to the other end of the long connecting rod of the connecting rod slider mechanism.

8. The device for solving the problem of installing the inner oil pipe in the self-balancing method pile according to claim 7, characterized in that: A sliding wheel rotating shaft mounting hole is provided on the T-shaped connecting rod. The sliding wheel rotating shaft is mounted in the sliding wheel rotating shaft mounting hole. The sliding wheel is rotatably mounted on the sliding wheel rotating shaft, and a concave structure for facilitating fitting with the main reinforcement is provided on the outer edge of the sliding wheel.

9. The device for solving the problem of installing the inner oil pipe in the self-balancing method pile according to claim 7, wherein: The ratchet teeth are fixedly mounted at both ends of the sliding wheel; a pawl rotating shaft is provided on the T-shaped connecting rod. The upper end of the pawl is mounted on the T-shaped connecting rod through the pawl rotating shaft, and the lower end of the pawl abuts against the outer edge of the ratchet teeth.

Images