Cast-in-place pile reinforcement cage anti-floating tool

Abstract

The utility model discloses a cast-in-place pile reinforcement cage anti-floating tool which comprises a steel pipe, two reinforcing steel bars with hooks and a double-ring fastener, the two reinforcing steel bars with the hooks are combined and connected together through the double-ring fastener, the bottom end of the steel pipe is inserted into one of main reinforcing steel bars at the topmost end of a reinforcement cage, and the bottom end of the steel pipe is inserted into the other main reinforcing steel bar at the topmost end of the reinforcement cage. Wherein the top end of one steel bar with the hook is hung at the top end of the steel pipe, the bottom end of the other steel bar with the hook is hung at a hoisting hole in the surface of the sleeve, the double-ring fastener is formed by welding two annular pieces, and the two annular pieces are arranged on the two steel bars with the hooks in a sleeving mode respectively. The cast-in-place pile reinforcement cage anti-floating tool composed of the steel pipe, the steel bars with the hooks and the double-ring fasteners can effectively resist upward floating force in the cast-in-place pile pouring process of the reinforcement cage, the problem that the reinforcement cage floats upwards in the cast-in-place pile pouring process is solved, meanwhile, the tool is convenient to assemble and disassemble, high in working efficiency and easy to hoist, and the construction cost is reduced. And the safety problems such as inclination and collapse of ballasting objects are not easy to occur.

Description

Technical Field

[0001] The utility model belongs to the technical field of construction engineering, and in particular relates to an anti-floating tool for a cast-in-place pile reinforcement cage. Background Art

[0002] During the pouring of pile foundation concrete, the steel cage is easily affected by the back-up effect of concrete, causing the steel cage to float, affecting the quality of the bored pile and generating costs for later pile filling. The traditional method of weighing the steel cage makes on-site lifting difficult, has low work efficiency, and is prone to safety problems such as tilting and collapse of the weighed object. Therefore, the utility model proposes an anti-floating tool for bored pile steel cages. Utility Model Content

[0003] The utility model aims to provide a cast-in-place pile reinforcement cage anti-floating tool to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an anti-floating tool for a cast-in-place pile reinforcement cage, comprising a steel pipe, two steel bars with hooks and a double-ring fastener, the two steel bars with hooks are connected together by a double-ring fastener, the bottom end of the steel pipe is inserted into one of the main bars at the top of the reinforcement cage, the top end of one of the steel bars with hooks is hung on the top of the steel pipe, and the bottom end of the other steel bar with hooks is hung on the lifting hole on the surface of the sleeve.

[0005] Preferably, the double-ring fastener is welded from two ring-shaped parts, and the two ring-shaped parts are respectively sleeved on two steel bars with bent hooks, a rectangular notch is opened at one end of the ring-shaped part, and a rotating cylinder is rotatably installed in the rectangular notch, a threaded rod is fixed on the surface of the rotating cylinder, and a strip notch corresponding to the threaded rod is opened at the other end of the ring-shaped part, the end of the threaded rod is screwed into the strip notch, and a butterfly nut is sleeved on the end surface of the threaded rod.

[0006] Preferably, a shaft rod is fixed in the rectangular notch, and the rotating cylinder is rotatably sleeved on the shaft rod.

[0007] Preferably, the width of the strip-shaped notch is 1.2 times the diameter of the anti-slip groove.

[0008] Preferably, the butterfly nut is threadedly connected to the threaded rod, and two pinch ears are symmetrically fixed on the surface of the butterfly nut.

[0009] Preferably, an anti-skid pad is installed on the inner wall of the annular member, and the anti-skid pad is in close contact with the steel bar with bent hooks, the outer wall of the anti-skid pad is provided with two integrated rubber seats, and both side surfaces of the rubber seats are provided with integrated side clamps, the surface of the double-ring fastener is penetrated by a socket corresponding to the rubber seat, the end of the rubber seat penetrates to the outside of the double-ring fastener through the socket, and the side clamp is clamped on the outer surface of the double-ring fastener.

[0010] Preferably, the inner wall of the anti-slip pad is provided with a plurality of anti-slip grooves.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows: the utility model can effectively resist the buoyancy during the pouring of the steel cage cast-in-place piles by designing an anti-floating tool for the cast-in-place pile steel cage composed of a steel pipe, steel bars with bent hooks and double-ring fasteners, thereby solving the problem of the steel cage floating during the casting of the cast-in-place piles. At the same time, this tool is easy to install and disassemble, has high working efficiency, is easy to hoist, and is not prone to safety problems such as tilting and collapse of heavy objects. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the utility model;

[0013] Figure 2 For this utility model Figure 1 A partial enlarged view of the middle A area;

[0014] Figure 3 It is a top view of the double-ring fastener of the utility model;

[0015] Figure 4 For this utility model Figure 3 A partial enlarged view of the middle B area;

[0016] In the figure: 1. Steel pipe; 2. Steel bar with bent hook; 3. Double ring fastener; 31. Rectangular notch; 32. Rotating cylinder; 33. Threaded rod; 34. Butterfly nut; 35. Strip notch; 36. Anti-skid pad; 361. Rubber seat; 362. Side clamp; 363. Anti-skid groove; 37. Socket; 4. Sleeve; 41. Lifting hole; 5. Steel cage. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] Example 1

[0019] See also Figures 1 to 3, which is the first embodiment of the utility model. This embodiment provides a technical solution: an anti-floating tool for a cast-in-place pile steel cage, comprising a steel pipe 1, two steel bars with hooks 2 and a double-ring fastener 3. The two steel bars with hooks 2 are connected together by the double-ring fastener 3. The bottom end of the steel pipe 1 is inserted into one of the main bars at the top of the steel cage 5. The top of one of the steel bars with hooks 2 is hung on the top of the steel pipe 1, and the bottom end of the other steel bar with hooks 2 is hung on the lifting hole 41 on the surface of the sleeve 4. Because the sleeve 4 is fixed in the cast-in-place pile casting hole, it is equivalent to a fixed matrix. When the bottom end of the steel bar with hooks 2 is hung on the sleeve 4, the steel pipe 1 can be prevented from moving up. At the same time, because the bottom end of the steel pipe 1 is sleeved on one of the main bars at the top of the steel cage 5, the steel cage 5 can be prevented from floating up through the combined action of the steel pipe 1 and the steel bars with hooks 2, effectively resisting the buoyancy during the casting process of the steel cage cast-in-place pile, and solving the problem of cast-in-place pile. The problem of steel cage floating during pile casting is that the double ring fastener 3 is welded by two ring parts, and the two ring parts are respectively sleeved on the two steel bars 2 with hooks. A rectangular notch 31 is opened at one end of the ring part, and a rotating cylinder 32 is rotatably installed in the rectangular notch 31. A threaded rod 33 is welded and fixed on the surface of the rotating cylinder 32. A strip notch 35 corresponding to the threaded rod 33 is opened at the other end of the ring part, and the end of the threaded rod 33 is screwed into the strip notch 35, and a butterfly nut 34 is sleeved on the end surface of the threaded rod 33. The butterfly nut 34 can be rotated and tightened to achieve the closing and tightening of the ring parts of the double ring fastener 3, so as to tightly fix the double ring fastener 3 on the steel bars 2 with hooks, and the two steel bars 2 with hooks can be fixed together by the double ring fastener 3. At the same time, the butterfly nut 34 is loosened later and the position of the steel bars 2 with hooks located on the inner side of the double ring fastener 3 is adjusted to adjust the overall length of the two steel bars 2 with hooks after combination.

[0020] A shaft is fixed in the rectangular notch 31 , and the rotating cylinder 32 is rotatably sleeved on the shaft, so that the rotating cylinder 32 can be smoothly rotated and installed.

[0021] The width of the strip-shaped notch 35 is 1.2 times the diameter of the anti-slip groove 363 , so that the threaded rod 33 can be smoothly screwed into the inner side of the strip-shaped notch 35 .

[0022] The butterfly nut 34 is threadedly connected to the threaded rod 33 , and two pinch ears are symmetrically welded and fixed on the surface of the butterfly nut 34 , so that the operator can easily rotate and twist the butterfly nut 34 later.

[0023] Example 2

[0024] See also Figures 1 to 4 , which is the second embodiment of the utility model, is based on the previous embodiment, and the difference is that the stability of the double-ring fastener 3 when pressed against the surface of the steel bar 2 with a bent hook can be improved by setting an anti-skid pad 36, thereby playing an anti-skid role.

[0025] Specifically, an anti-skid pad 36 is installed on the inner wall of the annular member, and the anti-skid pad 36 is in close contact with the steel bar 2 with a bent hook. The outer wall of the anti-skid pad 36 is provided with two integrated rubber seats 361, and the two side surfaces of the rubber seat 361 are provided with integrated side clamping blocks 362. The anti-skid pad 36, the rubber seat 361 and the side clamping blocks 362 are all made of rubber material and will undergo elastic deformation when squeezed. At the same time, a deformation cavity corresponding to the position of the side clamping block 362 is also opened in the rubber seat 361, so that the side clamping block 362 has sufficient deformation space when squeezed. A socket 37 corresponding to the rubber seat 361 is opened on the surface of the double-ring fastener 3, and the end of the rubber seat 361 passes through the socket 37 to the outside of the double-ring fastener 3, and the side clamping block 362 is clamped on the outer surface of the double-ring fastener 3. The inner wall of the anti-skid pad 36 is provided with a plurality of anti-skid grooves 363, which can further play an anti-skid role.

[0026] Although the embodiments of the present invention have been shown and described (see the detailed description above for details), it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cast-in-place pile reinforcement cage anti-floating tool, characterized by: The invention comprises a steel pipe (1), two steel bars with hooks (2) and a double ring fastener (3), wherein the two steel bars with hooks (2) are connected together by the double ring fastener (3), the bottom end of the steel pipe (1) is inserted into one of the main bars at the top of the steel cage (5), the top end of one of the steel bars with hooks (2) is hung on the top of the steel pipe (1), and the bottom end of the other steel bar with hooks (2) is hung on a lifting hole (41) on the surface of a sleeve (4).

2. The anti-floating tool for cast-in-place pile reinforcement cage according to claim 1, characterized in that: The double-ring fastener (3) is welded from two ring-shaped parts, and the two ring-shaped parts are respectively sleeved on two steel bars (2) with bent hooks, one end of the ring-shaped part is provided with a rectangular notch (31), and a rotating cylinder (32) is rotatably installed in the rectangular notch (31), a threaded rod (33) is fixed on the surface of the rotating cylinder (32), and the other end of the ring-shaped part is provided with a strip-shaped notch (35) corresponding to the threaded rod (33), the end of the threaded rod (33) is screwed into the strip-shaped notch (35), and a butterfly nut (34) is sleeved on the end surface of the threaded rod (33).

3. The anti-floating tool for cast-in-place pile reinforcement cage according to claim 2, characterized in that: A shaft rod is fixed in the rectangular notch (31), and the rotating cylinder (32) is rotatably sleeved on the shaft rod.

4. The anti-floating tool for cast-in-place pile reinforcement cage according to claim 2, characterized in that: The width of the strip-shaped notch (35) is 1.2 times the diameter of the anti-slip groove (363).

5. The anti-floating tool for cast-in-place pile reinforcement cage according to claim 2, characterized in that: The butterfly nut (34) is threadedly connected to the threaded rod (33), and two pinch ears are symmetrically fixed on the surface of the butterfly nut (34).

6. The anti-floating tool for cast-in-place pile reinforcement cage according to claim 2, characterized in that: An anti-skid pad (36) is installed on the inner wall of the annular member, and the anti-skid pad (36) is in close contact with the steel bar (2) with a bent hook.

7. The anti-floating tool for cast-in-place pile reinforcement cage according to claim 6, characterized in that: The outer wall of the anti-slip pad (36) is provided with two integrated rubber seats (361), and the two side surfaces of the rubber seats (361) are both provided with integrated side clamping blocks (362). The surface of the double-ring fastener (3) is penetrated by a plug hole (37) corresponding to the rubber seat (361), and the end of the rubber seat (361) passes through the plug hole (37) to the outside of the double-ring fastener (3), and the side clamping blocks (362) are clamped on the outer surface of the double-ring fastener (3).

8. The anti-floating tool for cast-in-place pile reinforcement cage according to claim 7, characterized in that: The inner wall of the anti-slip pad (36) is provided with a plurality of anti-slip grooves (363).

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