Device capable of preventing cast-in-place pile foundation reinforcement cage from floating upwards

Abstract

The utility model relates to the technical field of engineering facilities, and discloses a device capable of preventing a cast-in-place pile foundation reinforcement cage from floating upwards, which comprises a positioning frame, the positioning frame is arranged on the outer side of a pile casing, a fixing base plate is fixedly arranged on the side wall of the positioning frame, the positioning frame is in a rectangular frame shape, and the fixing base plate is arranged on the positioning frame. A fixing square buckle is fixedly installed in the middle of each side of the positioning frame, a limiting box is fixedly installed at the position, corresponding to the fixing square buckle, of the top of the fixing base plate, and a rectangular inserting groove matched with the fixing square buckle in a matched mode is formed in the position, corresponding to the fixing square buckle, of the limiting box. Pressing steel is arranged on the fixing square buckle and the limiting box which correspond to each other in the same position, and the pressing steel is arranged in the fixing square buckle and the limiting box in a sliding mode. According to the device, the pressing steel is moved to the designated position, the lock catch arc plate on the pressing steel is clamped and buckled to the designated position of the transverse bar on the reinforcement cage, and the pressing steel and the lock catch arc plate are both of an adjustable structure, so that adaptive adjustment can be rapidly carried out according to the position of the transverse bar.

Description

Technical Field

[0001] The utility model relates to the technical field of engineering facilities, and more specifically to a device capable of preventing a reinforced cage of a bored pile foundation from floating up. Background Art

[0002] In the field of foundation construction of building projects, cast-in-place piles are widely used in various construction projects because of their significant advantages such as being able to adapt to various complex geological conditions and having high bearing capacity. In the construction process of cast-in-place piles, whether the position of the steel cage is stable plays a critical and decisive role in the final quality of the entire pile body and the subsequent bearing performance that can be exerted.

[0003] During the critical construction link of pouring concrete into the steel cage, the concrete has a certain fluidity and the buoyancy effect on the steel cage, which can easily cause the steel cage to float in the pile hole. The common technical solution to prevent the steel cage of the cast-in-place pile foundation from floating is to set a pressure steel on the top of the steel cage with the help of a limiter and overlap it with the transverse reinforcement on the steel cage to limit the upward movement of the steel cage. However, in actual construction scenarios, since the upper steel bar binding method of the steel cage will vary according to different design requirements, construction specifications and actual engineering conditions, and the requirements for setting the spacing between the steel bars are also different, this directly leads to the position of the transverse reinforcement not being fixed, but changing within a certain range. Therefore, the position between the traditional limiter and the transverse reinforcement is often difficult to match accurately, and the construction personnel need to frequently adjust the operation during the construction process. Even if the initial limit installation is completed after adjustment, there may still be a gap between the limiter and the transverse reinforcement due to inadequate adjustment or slight changes in the position of the transverse reinforcement. These gap spaces will weaken the restricting effect on the floating of the steel cage, so that the steel cage still has the risk of floating during the concrete pouring process, which will affect the structural integrity and stability of the bored pile, reduce its bearing capacity and durability, and also increase construction time and labor costs due to frequent adjustment work, reducing the overall construction efficiency. For this reason, we proposed a device that can prevent the floating of the steel cage of the bored pile foundation. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a device capable of preventing the steel cage of the cast-in-place pile foundation from floating up, so as to solve the problems of the prior art.

[0005] The technical solution adopted by the utility model to solve the above technical problems is:

[0006] A device capable of preventing a steel cage of a bored pile foundation from floating up comprises a positioning frame, the positioning frame is arranged on the outside of a casing, a fixed base plate is fixedly installed on the side wall of the positioning frame, the positioning frame is in the shape of a rectangular frame, a fixed square buckle is fixedly installed at the middle position of each side of the positioning frame, a limit box is fixedly installed at the top of the fixed base plate corresponding to the fixed square buckle position, a rectangular slot corresponding to the fixed square buckle position is opened on the limit box corresponding to the fixed square buckle position, a pressing steel is arranged on the fixed square buckle and the limiting box corresponding to the same position, the pressing steel is slidably arranged in the fixed square buckle and the limiting box, the pressing steel is an "L"-shaped rectangular rod, the bent end of the pressing steel and the inner top of the casing correspond to each other, a buckle assembly is arranged at the bent end position of the pressing steel, a locking assembly is arranged inside the limiting box, and the locking assembly can lock the pressing steel;

[0007] The buckle assembly includes an adjustment groove, a locking arc plate, a connecting block and an adjusting shaft. An adjustment groove is provided at the bottom of the upper bent end of the pressing steel, and the adjustment groove is a "U"-shaped groove. A locking arc plate is provided on the side of the upper bent end of the pressing steel away from the fixed square buckle. The locking arc plate is an arc-shaped plate, and the position of the locking arc plate corresponds to the position of the adjustment groove. An adjustment shaft is fixedly installed on the inner side of the adjusting groove, and a connecting block is fixedly installed on the side of the locking arc plate close to the adjusting groove. The adjusting shaft slides through the connecting block, and the connecting block can be rotated and adjusted on the adjusting shaft.

[0008] The locking assembly includes a latch member and an extrusion member.

[0009] The latch member includes a limit rod, a limit groove, a limiting groove and a limiting ball. The limit groove is arranged on the side wall of the limit box, and the limiting groove is arranged on the inner side of the limit box. The position of the limit groove corresponds to the middle position of the slot on the limit box, and the limit groove divides the limit groove into a screwing section and a penetration section. The penetration section penetrates the limit box, and a thread is arranged on the inner side of the screwing section. The limit groove is internally movablely provided with a limit rod, and a thread is arranged at the position of the screwing section on the limit rod corresponding to the limit groove. The external thread on the limit rod is matched with the internal thread of the screwing section of the limit groove. A limit ball is fixedly installed at the position corresponding to the limit groove on the limit rod, and the limit ball is in the shape of a spherical block.

[0010] The extrusion part includes an adjusting block, an auxiliary adjusting groove, a limit plate and an auxiliary spring. The auxiliary adjusting groove is opened at the bottom of the slot in the limit box, and the bottom of the auxiliary adjusting groove and the interior of the limit groove are connected to each other. A limit plate is arranged on the inner top of the auxiliary adjusting groove. The size of the limit plate is matched with the size of the inner side of the auxiliary adjusting groove. A plurality of auxiliary springs are fixedly installed at intervals on the bottom of the limit plate. One end of the auxiliary spring is fixedly installed on the wall surface at the corresponding position on the inner side of the auxiliary adjusting groove away from the limit plate. An adjusting block is fixedly installed at the middle position of the bottom of the limit plate. The bottom of the adjusting block is a circular arc spherical groove. The inner diameter of the groove at the bottom of the adjusting block is matched with the outer diameter of the limit ball. The bottom of the adjusting block extends to the inner side of the limit groove.

[0011] A plurality of mounting holes are arranged at intervals on the fixed base plate, and the mounting holes are inclined from top to bottom toward a side away from the positioning frame, and fixing piles are arranged inside the mounting holes on the fixed base plate.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] 1. In the utility model, the pressing steel is moved to a specified position, and a locking arc plate on the pressing steel is buckled in a specified position of the transverse reinforcement on the steel cage. Both the pressing steel and the locking arc plate are adjustable structures, so that they can be quickly adapted and adjusted according to the position of the transverse reinforcement. After the adjustment is completed, the locking assembly fixes the position of the pressing steel and the locking arc plate, thereby fixing the transverse reinforcement, thereby limiting the floating problem of the steel cage during operation.

[0014] 2. In the utility model, the inclined fixed piles can effectively increase the connection effect with the ground after the fixed piles are inserted into the ground. The inclined fixed piles can effectively avoid the impact on the pile holes and can also improve the stability of the device with the help of the ground pressure. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 The utility model is a schematic diagram of the cutaway structure of the part Figure 1 ;

[0017] Figure 3 The utility model is a schematic diagram of the cutaway structure of the part Figure 2 ;

[0018] Figure 4 It is a partial structural schematic diagram of the utility model (the first state of the lock arc plate and the transverse rib matching);

[0019] Figure 5 It is a partial structural schematic diagram of the utility model (the second state of the locking arc plate and the transverse rib matching).

[0020] Legend:

[0021] 1. Positioning frame; 2. Fixed base plate; 3. Casing; 4. Fixed square buckle; 5. Limit box; 6. Press steel; 7. Mounting hole; 8. Fixed pile; 9. Adjustment slot; 10. Locking arc plate; 11. Connecting block; 12. Adjustment shaft; 13. Limit rod; 14. Limit slot; 15. Limiting slot; 16. Limiting ball; 17. Adjustment block; 18. Auxiliary adjustment slot; 19. Limit plate; 20. Auxiliary spring. DETAILED DESCRIPTION

[0022] The present invention is further described below in conjunction with specific embodiments. However, people familiar with the art should understand that the detailed description given here in conjunction with the drawings is for better explanation, and the structure of the present invention necessarily exceeds these limited embodiments. For some equivalent replacement schemes or common means, they are no longer described in detail herein, but still fall within the scope of protection of the present application.

[0023] Figure 1~Figure 5 It is the best embodiment of the utility model, and the following Figure 1~Figure 5 The utility model is further described.

[0024] like Figure 1-Figure 5 As shown, a device capable of preventing the steel cage of a bored pile foundation from floating up comprises a positioning frame 1, wherein the positioning frame 1 is arranged on the outside of a casing 3, a fixed base plate 2 is fixedly installed on the side wall of the positioning frame 1, the positioning frame 1 is in the shape of a rectangular frame, a fixed square buckle 4 is fixedly installed at the middle position of each side of the positioning frame 1, a limit box 5 is fixedly installed at the top of the fixed base plate 2 corresponding to the position of the fixed square buckle 4, a rectangular slot corresponding to the fixed square buckle 4 is opened on the limit box 5 corresponding to the position of the fixed square buckle 4, a pressing steel 6 is arranged on the fixed square buckle 4 and the limiting box 5 corresponding to the same position, the pressing steel 6 is slidably arranged in the fixed square buckle 4 and the limiting box 5, the pressing steel 6 is an "L"-shaped rectangular rod, the bent end of the pressing steel 6 corresponds to the inner top of the casing 3, a buckle assembly is arranged at the bent end position of the pressing steel 6, a locking assembly is arranged inside the limiting box 5, and the locking assembly can lock the pressing steel 6.

[0025] In the above structure, the positions of the two ends of the pressing steel 6 are limited by the fixed square buckle 4 and the limit box 5, which can effectively reduce the occurrence of deviation or one end tilting after the two ends of the pressing steel 6 are subjected to pressure. In addition, the pressing steel 6 can slide relative to the fixed square buckle 4 and the limit box 5, so that the position of the pressing steel 6 is adjustable to adapt to the transverse ribs at different positions.

[0026] The buckle assembly includes an adjusting groove 9, a locking arc plate 10, a connecting block 11 and an adjusting shaft 12. An adjusting groove 9 is provided at the bottom of the upper bent end of the pressing steel 6. The adjusting groove 9 is a "U"-shaped groove. A locking arc plate 10 is provided on the side of the upper bent end of the pressing steel 6 away from the fixed square buckle 4. The locking arc plate 10 is an arc-shaped plate. The position of the locking arc plate 10 corresponds to the position of the adjusting groove 9. An adjusting shaft 12 is fixedly installed on the inner side of the adjusting groove 9. A connecting block 11 is fixedly installed on the side of the locking arc plate 10 close to the adjusting groove 9. The adjusting shaft 12 slides through the connecting block 11, and the connecting block 11 can be rotated and adjusted on the adjusting shaft 12.

[0027] In the above structure, the locking arc plate 10 can be buckled on the top transverse reinforcement of the steel cage, and the locking arc plate 10 can be rotated and adjusted on the adjustment shaft 12 in the adjustment groove 9 through the connecting block 11. When the positions of the four top transverse reinforcements on the steel cage are slightly different due to the specifications, spacing and arrangement of the reinforcement, the adjustable performance of the locking arc plate 10 can adapt to the four different transverse reinforcements to ensure the stable installation of the overall structure.

[0028] The locking assembly includes a latch member and an extrusion member.

[0029] The latch member includes a limit rod 13, a limit groove 14, a limiting groove 15 and a limiting ball 16. The limit groove 14 is opened on the side wall of the limit box 5, and the limiting groove 15 is opened on the inner side of the limit box 5. The position of the limiting groove 15 corresponds to the middle position of the slot on the limit box 5, and the limiting groove 15 divides the limit groove 14 into a screwing section and a penetration section. The penetration section penetrates the limit box 5, and the inner side of the screwing section is provided with a thread. The limit rod 13 is movably arranged inside the limit groove 14, and the limit rod 13 is provided with a thread corresponding to the position of the screwing section on the limit groove 14. The external thread on the limit rod 13 is adapted to the internal thread of the screwing section of the limit groove 14. A limiting ball 16 is fixedly installed on the limit rod 13 at the position corresponding to the limit groove 15, and the limiting ball 16 is in the shape of a spherical block.

[0030] The extrusion member includes an adjustment block 17, an auxiliary adjustment groove 18, a limit plate 19 and an auxiliary spring 20. The auxiliary adjustment groove 18 is opened at the bottom of the slot in the limit box 5, and the bottom of the auxiliary adjustment groove 18 is connected to the inside of the limit groove 15. A limit plate 19 is arranged on the inner top of the auxiliary adjustment groove 18. The size of the limit plate 19 is adapted to the size of the inner side of the auxiliary adjustment groove 18. A plurality of auxiliary springs 20 are fixedly installed at intervals at the bottom of the limit plate 19. The auxiliary spring 20 is fixedly installed on the wall surface at the corresponding position inside the auxiliary adjustment groove 18 at one end away from the limit plate 19. An adjustment block 17 is fixedly installed at the middle position of the bottom of the limit plate 19. The bottom of the adjustment block 17 is a circular arc spherical groove. The inner diameter of the groove at the bottom of the adjustment block 17 is adapted to the outer diameter of the limit ball 16. The bottom of the adjustment block 17 extends to the inner side of the limit groove 15.

[0031] In the above structure, the limiting rod 13 is screwed so that the limiting rod 13 is spirally advanced inside the limiting groove 14, thereby driving the limiting ball 16 on the limiting rod 13 to squeeze the extrusion member, so that the extrusion member can effectively squeeze and limit the pressing steel 6. Specifically, the limiting ball 16 is pushed inside the limiting groove 15, so that the limiting ball 16 gradually squeezes the groove on the adjustment block 17, so that the adjustment block 17 is gradually squeezed and pushed by the arc surface of the limiting ball 16, thereby driving the limiting plate 19 to gradually rise, so that the limiting plate 19 squeezes and limits the pressing steel 6. The top of the limiting plate 19 is set as a rough surface to increase the limiting friction.

[0032] A plurality of mounting holes 7 are provided at intervals on the fixed base plate 2, and the mounting holes 7 are inclined from top to bottom toward the side away from the positioning frame 1, and fixing piles 8 are provided inside the mounting holes 7 on the fixed base plate 2. Through the inclined structure, the fixing piles 8 can effectively increase the connection effect with the ground after being inserted into the ground. At the same time, the fixing piles 8 arranged outwardly can effectively avoid the influence on the pile holes, and can also improve the stability of the device with the help of the pressure of the ground.

[0033] The working principle and use process of this utility model:

[0034] When in use, after the positioning frame 1 and the fixed base plate 2 are installed at the designated position of the corresponding casing 3 through the fixed piles 8, the steel cage is placed inside the casing 3 by means of a crane or other equipment, and the four groups of pressing steels 6 are pushed so that the four groups of pressing steels 6 drive the locking arc plates 10 to buckle on the transverse reinforcement at the corresponding position on the steel cage. When the locking arc plates 10 are buckled and adjusted, the sliding pressing steels 6 are moved to the positions as shown in the figure. Figure 5 The extreme position shown makes it impossible for the locking arc plate 10 to be rotated downward on the adjusting shaft 12 through the connecting block 11, and then the limit rod 13 on the limit box 5 is screwed and adjusted, so that the limiting ball 16 on the limit rod 13 squeezes the adjusting block 17, driving the limit plate 19 to squeeze the corresponding position of the pressing steel 6, and locking the pressing steel 6, thereby completing the installation of the anti-floating device of the steel cage.

Claims

1. A device capable of preventing a cast-in-place pile foundation reinforcement cage from floating, comprising a positioning frame (1), the positioning frame (1) being arranged outside a casing (3), a fixed base plate (2) being fixedly mounted on a side wall of the positioning frame (1), the positioning frame (1) being in the shape of a rectangular frame, a fixed square buckle (4) being fixedly mounted at the middle position of each side of the positioning frame (1), characterized in that: A limit box (5) is fixedly installed at the top of the fixed base plate (2) at a position corresponding to the fixed square buckle (4); a rectangular slot corresponding to the fixed square buckle (4) is opened on the limit box (5) at a position corresponding to the fixed square buckle (4); a pressing steel (6) is arranged on the fixed square buckle (4) and the limit box (5) at the same position; the pressing steel (6) is slidably arranged in the fixed square buckle (4) and the limit box (5); the pressing steel (6) is an "L"-shaped rectangular rod; the bent end of the pressing steel (6) corresponds to the inner top of the casing (3); a buckle assembly is arranged at the bent end of the pressing steel (6); a locking assembly is arranged inside the limit box (5); the locking assembly can lock the pressing steel (6); The buckle assembly comprises an adjustment groove (9), a locking arc plate (10), a connecting block (11) and an adjustment shaft (12). The bottom of the upper bent end of the pressing steel (6) is provided with an adjustment groove (9), the adjustment groove (9) being a "U"-shaped groove. The side of the upper bent end of the pressing steel (6) away from the fixed square buckle (4) is provided with a locking arc plate (10), the locking arc plate (10) being an arc-shaped plate, the position of the locking arc plate (10) and the position of the adjustment groove (9) corresponding to each other. The inner side of the adjustment groove (9) is fixedly mounted with an adjustment shaft (12), the side of the locking arc plate (10) close to the adjustment groove (9) is fixedly mounted with a connecting block (11), the adjustment shaft (12) slides through the connecting block (11), and the connecting block (11) can be rotated and adjusted on the adjustment shaft (12).

2. A device capable of preventing the steel cage of a bored pile foundation from floating up according to claim 1, characterized in that: The locking assembly includes a latch member and an extrusion member.

3. A device capable of preventing the steel cage of a bored pile foundation from floating up according to claim 2, characterized in that: The latch member comprises a limiting rod (13), a limiting groove (14), a limiting groove (15) and a limiting ball (16); the limiting groove (14) is arranged on the side wall of the limiting box (5); the limiting groove (15) is arranged on the inner side of the limiting box (5); the position of the limiting groove (15) corresponds to the middle position of the slot on the limiting box (5); the limiting groove (15) divides the limiting groove (14) into a screwing section and a penetration section; the penetration section penetrates the limiting box (5); a thread is arranged on the inner side of the screwing section; a limiting rod (13) is movably arranged inside the limiting groove (14); a thread is arranged on the limiting rod (13) corresponding to the screwing section position on the limiting groove (14); the external thread on the limiting rod (13) is matched with the internal thread of the screwing section of the limiting groove (14); a limiting ball (16) is fixedly installed on the limiting rod (13) at the position corresponding to the limiting groove (15); the limiting ball (16) is in the shape of a spherical block.

4. A device capable of preventing the steel cage of a bored pile foundation from floating up according to claim 3, characterized in that: The extrusion member comprises an adjustment block (17), an auxiliary adjustment groove (18), a limit plate (19) and an auxiliary spring (20); the auxiliary adjustment groove (18) is provided at the bottom of a slot in the limit box (5); the bottom of the auxiliary adjustment groove (18) and the interior of the limit groove (15) are connected to each other; a limit plate (19) is provided at the top of the inner side of the auxiliary adjustment groove (18); the size of the limit plate (19) matches the size of the inner side of the auxiliary adjustment groove (18); the bottom of the limit plate (19) is fixed at intervals A plurality of auxiliary springs (20) are installed, and one end of the auxiliary spring (20) away from the limiting plate (19) is fixedly installed on the wall surface at a corresponding position inside the auxiliary adjustment groove (18). An adjustment block (17) is fixedly installed at the middle position of the bottom of the limiting plate (19). The bottom of the adjustment block (17) is a circular arc spherical groove. The inner diameter of the groove at the bottom of the adjustment block (17) is matched with the outer diameter of the limiting ball (16). The bottom of the adjustment block (17) extends to the inner side of the limiting groove (15).

5. The device capable of preventing the steel cage of the bored pile foundation from floating up according to claim 1, characterized in that: A plurality of mounting holes (7) are provided on the fixed base plate (2) at intervals, the mounting holes (7) are inclined from top to bottom towards a side away from the positioning frame (1), and fixing piles (8) are provided inside the mounting holes (7) on the fixed base plate (2).

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