Detachable hanging bar for super-long empty pile of cast-in-place pile

Abstract

The detachable hanging bar comprises a main hanging rod, an installation piece is fixed to the top of the main hanging rod, the bottom of the main hanging rod is bent to form a hook, a fixing sleeve is fixed to the outer side of the bottom of the main hanging rod, and limiting blocks are installed at the front end and the rear end of the fixing sleeve respectively. Transverse steel bars of a steel reinforcement cage are hung through the hook, then the top of the hook is limited through the rotating rod, so that the steel bars are kept stable in the hook, finally, the movable long rod moves downwards to drive the pressing rod to extrude the rotating rod and limit the rotating rod, and the steel bars are fixed through the fixing sleeve. And after the reinforcement cage is hoisted, the limiting nut is unscrewed, the main hoisting rod is moved downwards, the rotating rod can be opened, the transverse reinforcing steel bar is separated from the hook position, the whole operation can be completed only by screwing the fastening nut, and the hoisting steel bar is convenient and rapid to disassemble.

Description

Technical Field

[0001] The utility model relates to the technical field of cast-in-place piles, in particular to a cast-in-place pile with an ultra-long hollow pile and detachable hanging rod. Background Art

[0002] A bored pile is a pile made by pouring concrete or reinforced concrete into a hole in place. Commonly used methods include: bored piles: piles are made by pouring concrete into holes in situ using a spiral drill, a submersible drill, etc. There is no vibration or soil squeezing during construction, but the settlement of the pile is slightly larger. The construction of super-long hollow column bored piles requires the use of hanging bars to lift the steel cage. The Chinese patent "A detachable and reusable hanging bar connection structure for bored pile steel cages" with application number 202221590638.1 records that after the poured concrete is initially solidified, the staff rotates the shelving rod to make the hanging bar rotate synchronously to separate the sleeve from the main bar, effectively reducing the hanging bar being poured in the concrete and unable to be quickly taken out for use after the concrete pouring is completed, making it impossible to recycle the hanging bar and cause waste;

[0003] However, the suspension rods used in the current super-long hollow cast-in-place piles are difficult to dismantle, and need to be extended to the top of the steel cage for dismantling, which brings inconvenience to people during construction. Utility Model Content

[0004] The utility model provides a removable hanging rod for an extra-long hollow cast-in-place pile, which can effectively solve the problem in the above background technology that the hanging rod used for the extra-long hollow cast-in-place pile is troublesome to dismantle and needs to be extended to the top of the steel cage for dismantling, which brings inconvenience to people during construction.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a removable suspension rod for an extra-long hollow cast-in-place pile, comprising a main suspension rod, a mounting piece is fixed on the top of the main suspension rod, a hook is bent at the bottom of the main suspension rod, a fixing sleeve is fixed on the outer side of the bottom of the main suspension rod, a limiting block is installed at the front end and the rear end of the fixing sleeve, a connecting block is installed at the front end and the rear end of the fixing sleeve, a rotating rod is rotatably sleeved on the outside of the two connecting blocks, and a connecting short rod is installed between the two rotating rods;

[0006] A number of fixed blocks are equidistantly installed on the outside of the main boom, a movable hole is provided on the top of the fixed block, a limit strip is installed in the middle of the movable hole, a movable long rod is movably connected inside the movable hole, a number of movable long holes are equidistantly installed on the outside of the movable long rod, a pressure rod is installed on the bottom end of the movable long rod, a top block is installed on the top of the movable long rod, a limit nut is threadedly connected at the position of the fixed block at the top of the movable long rod, and two positioning threads are provided on the outside of the movable long rod.

[0007] Preferably, the main suspension rod is installed with the lifting equipment through a mounting piece, and a transverse steel bar of the steel cage of the cast-in-place pile is clamped on the inner side of the hook.

[0008] Preferably, the connecting block is clamped with the inner side of the limiting block, the top end of the rotating rod is rotatably sleeved with the connecting block, and the bottoms of the two connecting blocks are clamped with the outer sides of the hooks.

[0009] Preferably, the limiting strip is clamped on the inner side of the movable long hole, and the pressing rod is in contact with the top of the rotating rod.

[0010] Preferably, the positioning threads are located at the top movable long hole and the middle movable long hole, and the limiting nut is meshed and connected with the positioning threads on the outside of the movable long rod.

[0011] Preferably, the diameter of the top block is 1.2 times the width of the fixed block, and the top block is in contact with the top fixed block.

[0012] Compared with the prior art, the utility model has the following beneficial effects: the utility model has a scientific and reasonable structure and is safe and convenient to use:

[0013] By setting a main hanging rod, a hook, a rotating rod, a fixed block, a movable hole, a limit strip, a movable long rod, a movable long hole, a pressure rod, a top block, a limit nut and a positioning thread, the transverse steel bars of the steel cage are hung through the hook, and then the top of the hook is limited by the rotating rod, so that the steel bars remain stable in the hook, and finally the movable long rod is moved downward to drive the pressure rod to squeeze the rotating rod and limit the rotating rod, thereby facilitating the lifting of the steel cage. After the lifting of the steel cage is completed, the limit nut is loosened and the main hanging rod is moved downward to open the rotating rod, so that the transverse steel bars are separated from the hook position. The overall operation can be completed by twisting the fastening nut, and the disassembly of the hanging rod is convenient and quick, and it can be reused later, which is beneficial to saving hanging rods. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0015] In the attached picture:

[0016] Figure 1 It is a structural schematic diagram of the utility model;

[0017] Figure 2 It is a cross-sectional view of the fixing block of the utility model;

[0018] Figure 3 This utility model Figure 2 Schematic diagram of the enlarged structure of the A area in the middle;

[0019] Figure 4 It is a front view of the main boom of the utility model;

[0020] Numbers in the figure: 1. Main suspension rod; 2. Mounting part; 3. Hook; 4. Fixing sleeve; 5. Limiting block; 6. Connecting block; 7. Rotating rod; 8. Connecting short rod; 9. Fixing block; 10. Movable hole; 11. Limiting strip; 12. Movable long rod; 13. Movable long hole; 14. Pressing rod; 15. Top block; 16. Limiting nut; 17. Positioning thread. DETAILED DESCRIPTION

[0021] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0022] Example: Figure 1-4 As shown, the utility model provides a technical solution, a removable suspension bar for an extra-long empty pile of a bored pile, comprising a main suspension rod 1, a mounting member 2 is fixed on the top of the main suspension rod 1, a bottom of the main suspension rod 1 is bent to form a hook 3, the main suspension rod 1 is installed with a lifting device through the mounting member 2, a transverse steel bar of a steel cage of the bored pile is clamped on the inner side of the hook 3, so as to facilitate the lifting of the steel cage used for the bored pile, a fixing sleeve 4 is fixed on the outer side of the bottom of the main suspension rod 1, a limiting block 5 is installed at the front and rear ends of the fixing sleeve 4, a connecting block 6 is installed at the front and rear ends of the fixing sleeve 4, a rotating rod 7 is rotatably sleeved on the outside of the two connecting blocks 6, the connecting block 6 is clamped on the inner side of the limiting block 5, one end of the top of the rotating rod 7 is rotatably sleeved on the connecting block 6, the bottoms of the two connecting blocks 6 are clamped on the outer side of the hook 3, the transverse steel bar inside the hook 3 is limited, and a connecting short rod 8 is installed between the two rotating rods 7;

[0023] A plurality of fixed blocks 9 are equidistantly installed on the outside of the main boom 1, a movable hole 10 is opened on the top of the fixed block 9, a limit strip 11 is installed in the middle of the movable hole 10, a movable long rod 12 is movably connected inside the movable hole 10, a plurality of movable long holes 13 are equidistantly opened on the outside of the movable long rod 12, the limit strip 11 is connected to the inner side of the movable long hole 13, a pressure rod 14 contacts with the top of the rotating rod 7 to limit the movable long rod 12, a pressure rod 14 is installed at the bottom of the movable long rod 12, a top block 15 is installed at the top of the movable long rod 12, and the top block 1 5 is 1.2 times the width of the fixed block 9. The top block 15 contacts the top fixed block 9, which is convenient for limiting the top of the movable long rod 12. The top of the movable long rod 12 is threadedly connected with a limiting nut 16 at the position of the fixed block 9. Two positioning threads 17 are opened on the outside of the movable long rod 12. The positioning threads 17 are located at the top movable long hole 13 and the middle movable long hole 13. The limiting nut 16 is meshed and connected with the positioning threads 17 on the outside of the movable long rod 12, which is convenient for limiting the position of the movable long rod 12.

[0024] The working principle and use process of the utility model are as follows: when constructing an extra-long hollow cast-in-place pile, first tie up the steel cage, install the mounting piece 2 at the top of the suspension bar on the lifting device, and then pull the movable long hole 13 upward to place the positioning thread 17 at the middle position of the outer side of the movable long hole 13 at the top position of the middle fixed block 9. At this time, the pressure rod 14 is separated from the rotating rod 7, and the limit of the rotating rod 7 is released;

[0025] Then, the limiting nut 16 is screwed on the positioning thread 17 in the middle part of the outer side of the movable long hole 13, so that the movable long rod 12 can move upward, and the rotating rod 7 is rotated upward to make the rotating rod 7 engage with the top of the limiting block 5. At this time, the top of the hook 3 is opened, and the hook 3 is hung on the outside of the transverse steel bar of the steel cage, and the limiting nut 16 is loosened upward, the movable long rod 12 and the pressure rod 14 slide downward, and the limiting bar 11 slides in the middle of the movable long hole 13. When the pressure rod 14 slides downward, it will squeeze the rotating rod 7, so that the rotating rod 7 rotates downward and engages with the hook 3, thereby limiting the transverse steel bar inside the hook 3. At this time, the limiting nut 16 is moved upward again, and the positioning thread 17 at the top position of the movable long rod 12 is tightened, thereby limiting the movable long rod 12;

[0026] After the steel cage is hung, the steel cage is moved to the location for constructing the bored piles by means of a lifting device, the steel cage is aligned, and then concrete is poured to the bottom of the steel cage. After the concrete at the bottom of the steel cage solidifies, the limit nut 16 is loosened to release the limit on the movable long rod 12, and finally the main suspension rod 1 and the hook 3 are moved downward by the lifting device. During the movement, the rotating rod 7 is pushed to open upward, so that the transverse steel bars at the hook 3 are moved out, the suspension bars are separated from the steel cage, and finally the suspension bars are removed for the convenience of subsequent reuse of the suspension bars.

[0027] Finally, it should be noted that the above description is only a preferred example of the present utility model and is not intended to limit the present utility model. Although the present utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A super-long hollow bored pile with a removable suspension rod, comprising a main suspension rod (1), characterized in that: A mounting member (2) is fixed on the top of the main boom (1), the bottom of the main boom (1) is bent to form a hook (3), a fixing sleeve (4) is fixed on the outer side of the bottom of the main boom (1), a limiting block (5) is installed at the front and rear ends of the fixing sleeve (4), a connecting block (6) is installed at the front and rear ends of the fixing sleeve (4), a rotating rod (7) is rotatably sleeved on the outside of the two connecting blocks (6), and a connecting short rod (8) is installed between the two rotating rods (7); A plurality of fixed blocks (9) are equidistantly mounted on the outside of the main suspension rod (1), a movable hole (10) is provided on the top of the fixed block (9), a limit strip (11) is installed in the middle of the movable hole (10), a movable long rod (12) is movably connected inside the movable hole (10), a plurality of movable long holes (13) are equidistantly mounted on the outside of the movable long rod (12), a pressure rod (14) is installed on the bottom end of the movable long rod (12), a top block (15) is installed on the top end of the movable long rod (12), a limit nut (16) is threadedly connected to the top of the movable long rod (12) at a position corresponding to the fixed block (9), and two positioning threads (17) are provided on the outside of the movable long rod (12).

2. The removable hanging rod of the super-long hollow cast-in-place pile according to claim 1 is characterized by: The main suspension rod (1) is installed with the lifting equipment via a mounting piece (2), and a transverse steel bar of the steel cage of the cast-in-place pile is clamped on the inner side of the bent hook (3).

3. The removable hanging rod of the super-long hollow bored pile according to claim 1 is characterized by: The connecting block (6) is clamped with the inner side of the limiting block (5), one end of the top of the rotating rod (7) is rotatably sleeved with the connecting block (6), and the bottoms of the two connecting blocks (6) are clamped with the outer sides of the curved hooks (3).

4. The removable hanging rod of the super-long hollow bored pile according to claim 1 is characterized by: The limiting strip (11) is clamped on the inner side of the movable long hole (13), and the pressing rod (14) is in contact with the top of the rotating rod (7).

5. The removable hanging rod of the super-long hollow bored pile according to claim 1 is characterized by: The positioning thread (17) is located at the top movable long hole (13) and the middle movable long hole (13), and the limiting nut (16) is meshedly connected with the positioning thread (17) on the outside of the movable long rod (12).

6. The removable hanging rod of the super-long hollow bored pile according to claim 1 is characterized by: The diameter of the top block (15) is 1.2 times the width of the fixed block (9), and the top block (15) is in contact with the top fixed block (9).

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