Steel casing with reinforcement cage positioning device

Abstract

The steel casing with the reinforcement cage positioning device comprises a steel casing body, a reinforcement cage is arranged in the steel casing body, a plurality of two-layer positioning mechanisms are arranged on the outer side of the steel casing body, a plurality of two-layer positioning grooves are formed in the outer side of the steel casing body, and each positioning mechanism comprises a steel plate block, a plurality of positioning grooves and a plurality of positioning grooves, the steel plate block is slidably connected into the positioning groove and matched with the positioning groove in size, and one end of the steel plate block is in contact connection with the reinforcement cage; the pushing assembly is arranged on the outer side of the steel casing body and the steel plate block; the fixing assembly is arranged on one side of the pushing assembly, the multiple steel plate blocks move towards the middle of the steel casing body at the same time through movement of the extending ends of multiple electric push rods which are started at the same time, it is observed that scales of scale plates on the multiple steel plate blocks are appropriate values, the multiple steel plate blocks make contact with the outer side of a reinforcement cage, and the reinforcement cage is driven to be located in the middle. And later pile head breaking is facilitated, and the service life of the reinforcement cage is prolonged.

Description

Technical Field

[0001] This application relates to the field of pile foundation construction, and in particular to a steel casing with a steel cage positioning device. Background Technology

[0002] A steel casing is a cylindrical steel structure that is typically installed at the borehole of a bored pile. The pile foundation reinforcement cage is installed inside the concrete pile. The pile foundation reinforcement cage mainly serves to enhance the stability and bearing capacity of the pile, while the steel casing mainly serves to protect the borehole, fix the pile position, and isolate miscellaneous fill soil. Together, they ensure the quality and safety of pile foundation construction.

[0003] However, during the implementation of the relevant technical solutions, at least the following technical problems were found: When the steel cage is lowered into the hole inside the steel casing during pile foundation construction, there will be errors in the installation position of the steel cage due to the gap between the steel cage and the pile hole, i.e., the protective layer. The pouring process will also affect the position of the steel cage, resulting in inconsistent thickness of the protective layer of the steel cage after the concrete is poured. This is not conducive to the later removal of the pile head and affects the service life of the steel cage. Utility Model Content

[0004] This application provides a steel casing with a rebar cage positioning device, which solves the problem of installation position error when the rebar cage is lowered into the hole in the prior art, and realizes the effect of positioning the rebar cage by the steel plate inserted on the steel casing.

[0005] This application provides a steel casing with a rebar cage positioning device, comprising a steel casing body, a rebar cage disposed inside the steel casing body, and multiple positioning mechanisms in two layers disposed on the outer side of the steel casing body. Multiple positioning grooves in two layers are formed on the outer side of the steel casing body. Each positioning mechanism includes: a steel plate, slidably connected to the interior of the positioning groove, with the steel plate matching the size of the positioning groove, and one end of the steel plate in contact with the rebar cage; a pushing component, disposed on the outer side of the steel casing body and the steel plate, for driving the steel plate to move towards the rebar cage; and a fixing component, disposed on one side of the pushing component, for fixing the steel plate so that the pushing component can drive the steel plate to a position in contact with the rebar cage by pushing the fixing component.

[0006] Furthermore, a scale plate is provided on the top of each of the steel plates.

[0007] Furthermore, the pushing component includes: a connecting plate disposed on the outside of the steel casing body, and the connecting plate being disposed on the top of the positioning groove; a connecting seat disposed at the bottom of the outer end of the connecting plate; and an electric push rod installed inside the connecting seat, the extended end of the electric push rod driving the steel plate to move.

[0008] Furthermore, the fixing component includes: a fixing plate, which is fixedly disposed at the extended end of the electric push rod; and a fixing seat, which is disposed on the side of the fixing plate near the steel casing body, and the other end of the steel plate is installed inside the fixing seat.

[0009] Furthermore, threaded rods are threadedly connected to both sides of the fixing base, and fixing grooves are provided on both sides of the steel plate near the fixing base, with the threaded rods matching the dimensions of the fixing grooves.

[0010] Furthermore, the top of the steel casing body is symmetrically provided with two pairs of lifting holes for hoisting.

[0011] The technical solution provided in this application has at least the following technical effects or advantages:

[0012] By simultaneously moving the extended ends of multiple electric push rods, multiple steel plates move towards the center of the steel casing body. Observing the scale plates on the multiple steel plates, the scales are found to be appropriate, allowing the multiple steel plates to contact the outside of the rebar cage and move the rebar cage to the center position, which facilitates the subsequent pile head removal and improves the service life of the rebar cage. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of the steel casing in the embodiments of this application;

[0014] Figure 2 This is a cross-sectional structural diagram of the fixing seat in an embodiment of this application;

[0015] Figure 3 This is a schematic diagram of the positioning mechanism in the embodiments of this application;

[0016] Figure 4 This is a schematic diagram of the structure of the fixing component in an embodiment of this application;

[0017] In the diagram: 10. Steel casing body; 20. Reinforcing cage; 30. Positioning mechanism; 40. Lifting hole; 50. Positioning groove; 31. Pushing assembly; 32. Fixing assembly; 33. Steel plate; 331. Fixing groove; 34. Scale plate; 311. Connecting plate; 312. Connecting seat; 313. Electric push rod; 321. Fixing plate; 322. Fixing seat; 323. Threaded rod. Detailed Implementation

[0018] This application discloses a steel casing with a rebar cage positioning device. The extension of the electric push rod 313 drives the steel plate 33 fixed in the fixed base 322 to move, so that the steel plate 33 can pass through the positioning groove 50 and extend into the interior of the steel casing body 10. The scale of the scale plate 34 on the steel plate 33 is observed on the inner wall of the steel casing body 10, so that the scale plates 34 on the multiple steel plates 33 of the two layers can be consistent and have appropriate values. The rebar cage 20 can contact the multiple steel plates 33 of the two layers and can be positioned in the center of the interior of the steel casing body 10.

[0019] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0020] Please refer to Figure 1 and Figure 2 This embodiment provides a steel casing with a rebar cage positioning device, including a steel casing body 10, a rebar cage 20 disposed inside the steel casing body 10, two pairs of lifting holes 40 symmetrically arranged on the top of the steel casing body 10 for hoisting, and multiple positioning mechanisms 30 arranged in two layers on the outer side of the steel casing body 10, and multiple positioning grooves 50 arranged in two layers on the outer side of the steel casing body 10. The multiple positioning mechanisms 30 include a pushing component 31, a fixing component 32, a steel plate 33, and a scale plate 34. The steel plate 33 is slidably connected to the inside of the positioning groove 50, and the steel plate 33 matches the size of the positioning groove 50. One end of the steel plate 33 is in contact with the rebar cage 20. The pushing component 31 is disposed on the outer side of the steel casing body 10 and the steel plate 33. Furthermore, the pushing component 31 is used to drive the steel plate 33 to move towards the rebar cage 20. The fixing component 32 is set on one side of the pushing component 31 and is used to fix the steel plate 33 so that the pushing component 31 can drive the steel plate 33 to the contact position with the rebar cage 20 by pushing the fixing component 32. By driving the fixing component 32 to move, the fixing component 32 and the steel plate 33 can pass through the positioning groove 50 and move into the steel casing body 10, so that multiple steel plates 33 of the two layers extend into the steel casing body 10 to position the rebar cage 20 inside the steel casing body 10, so that the rebar cage 20 can be accurately centered, which facilitates the later pile head breaking and improves the service life of the rebar cage 20.

[0021] Please refer to Figures 1-4The pushing component 31 includes a connecting plate 311, a connecting seat 312, and an electric push rod 313. The connecting plate 311 is disposed on the outside of the steel casing body 10 and is located on the top of the positioning groove 50. Multiple connecting plates 311 on the same layer are arranged in a ring at equal intervals on the outside of the steel casing body 10. The connecting seat 312 is disposed at the bottom of the outer end of the connecting plate 311. The electric push rod 313 is installed inside the connecting seat 312, and the extended end of the electric push rod 313 drives the steel plate 33 to move. A sealing ring is provided between the connecting seat 312 and the extended end of the electric push rod 313 to prevent mud and water from entering. The electric push rod 313 is inserted into the connecting seat 312 to prevent it from being damaged by external soil. The electric push rod 313 extends out of the connecting seat 312, allowing it to drive the steel plate 33 through the positioning groove 50 and move into the steel casing body 10 via the fixing component 32. The simultaneous activation of multiple electric push rods 313 allows multiple steel plates 33 of the two layers to be inserted into the steel casing body 10 at the same distance and contact the reinforcing cage 20, so that the reinforcing cage 20 can be centered in the steel casing body 10, thereby making the position of the reinforcing cage 20 more accurate after pouring.

[0022] Please refer to Figures 1-4A scale plate 34 is positioned on top of the steel plate 33. The fixing assembly 32 includes a fixing plate 321, a fixing seat 322, and threaded rods 323. The fixing plate 321 is fixedly mounted on the extended end of the electric push rod 313. The fixing seat 322 is positioned on the side of the fixing plate 321 near the steel casing body 10, and the other end of the steel plate 33 is installed inside the fixing seat 322. Two threaded rods 323 are threadedly connected to both sides of the fixing seat 322. Fixing grooves 331 are provided on both sides of the steel plate 33 near the fixing seat 322. The threaded rods 323 are sized to match the fixing grooves 331. The steel plate 33 is inserted into the positioning groove 50, and the outer fixing seat 322 contacts the outer side of the steel casing body 10, preventing concrete from overflowing from the positioning groove 50 during pouring. The rotation of the threaded rods 323 on both sides of the fixing seat 322 causes the threaded rods 323 to insert into the interior of the fixing seat 322, with one end of the threaded rod 323 inserted into the steel plate 33 inside the fixing seat 322. The threaded rod 323 is inserted into the fixing grooves 331 on both sides of the steel plate 33, so that the threaded rod 323 fixes the steel plate 33 inside the fixing seat 322. The extension of the electric push rod 313 can drive the steel plate 33 fixed in the fixing seat 322 to be inserted into the steel casing body 10 from the positioning groove 50. At the same time, the electric push rod 313 is activated to make the scale of the scale plate 34 on the inner wall of the steel casing body 10 consistent with the scale of the multiple steel plates 33. The length of the steel plate 33 extending into the steel casing body 10 is determined according to the difference between the diameter of the rebar cage 20 and the diameter of the steel casing body 10. At this time, the fixing seat 322 on one side of the steel plate 33 is in contact with the outer side of the steel casing body 10, keeping the positioning groove 50 blocked. The movement of the two layers of multiple steel plates 33 goes deeper and locks the rebar cage 20, ensuring that the rebar cage 20 is in the center position. The two layers of multiple steel plates 33 can ensure that the rebar cage 20 placed inside the steel casing body 10 will not tilt, improving the accuracy of the rebar cage 20.

[0023] The functional principle of this application can be explained through the following methods:

[0024] In use, multiple connecting plates 311 are installed equidistantly in a ring on the outside of the steel casing body 10. Then, steel plates 33 are inserted into the positioning grooves 50 on the outside of the steel casing body 10, with one end of the steel plate 33 extending into the interior of the steel casing body 10 and the other end inserted into the fixing seat 322. The threaded rods 323 on both sides of the fixing seat 322 are rotated, causing the two threaded rods 323 to screw into the fixing seat 322. The threaded rods 323 are then inserted into the fixing grooves 331 on both sides of the steel plate 33, fixing the steel plate 33 inside the fixing seat 322. The lifting rope is inserted into the symmetrically arranged lifting holes 40, allowing the steel casing body 10 to be inserted into the pile hole of the cast-in-place pile. The reinforcing cage 20 is placed inside the steel casing body 10. Simultaneously, the electric push rods 313 inside the multiple connecting seats 312 are activated, causing the extended ends of the electric push rods 313 to move the fixing plates 321 and fixing seats 322 towards the steel casing body 10. Moving the same distance in the 0 direction, the fixing seat 322 drives the internal steel plate 33 to insert into the positioning groove 50, so that the steel plate 33 extends into the steel casing body 10. Observe the scale plate 34 on the top of the steel plate 33 corresponding to the scale on the inner wall of the steel casing body 10. Thus, the multiple steel plates 33 of the two layers move the rebar cage 20 to the center position at different heights and positions. At this time, the fixing seat 322 on one side of the steel plate 33 contacts the outside of the steel casing body 10, keeping the positioning groove 50 sealed. After the concrete is poured, the electric push rod 313 inside the connecting seat 312 is activated, so that the electric push rod 313 drives the fixing seat 322 to move outward through the fixing plate 321. This causes the fixing seat 322 to move the steel plate 33 fixed to it out of the interior of the steel casing body 10, ensuring that the rebar cage 20 can also be in a centered state after the concrete is poured, which is convenient for the later pile head breaking and improves the service life of the rebar cage 20.

[0025] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

[0026] The above description is merely a preferred embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present application, based on the technical solution and concept of the present application, should be covered within the scope of protection of the present application.

Claims

1. A steel casing with a rebar cage positioning device, comprising a steel casing body (10), wherein a rebar cage (20) is disposed inside the steel casing body (10), characterized in that, The outer side of the steel casing body (10) is provided with multiple positioning mechanisms (30) in two layers, and the outer side of the steel casing body (10) is provided with multiple positioning grooves (50) in two layers. The multiple positioning mechanisms (30) include: A steel plate (33) is slidably connected inside the positioning groove (50), and the steel plate (33) matches the size of the positioning groove (50). One end of the steel plate (33) is in contact with the reinforcing cage (20). A pushing component (31) is disposed on the outside of the steel casing body (10) and the steel plate (33), and the pushing component (31) is used to drive the steel plate (33) to move towards the reinforcing cage (20); A fixing component (32) is disposed on one side of the pushing component (31), and the fixing component (32) is used to fix the steel plate (33) so that the pushing component (31) can push the fixing component (32) to move the steel plate (33) to the contact position with the steel cage (20).

2. A steel casing with a reinforcing cage positioning device as described in claim 1, characterized in that, A scale plate (34) is provided on the top of each of the steel plates (33).

3. A steel casing with a reinforcing cage positioning device as described in claim 1, characterized in that, The actuation component (31) includes: A connecting plate (311) is disposed on the outside of the steel casing body (10), and the connecting plate (311) is disposed on the top of the positioning groove (50); A connecting seat (312) is disposed at the bottom of the outer end of the connecting plate (311); An electric push rod (313) is installed inside the connecting seat (312), and the extended end of the electric push rod (313) drives the steel plate (33) to move.

4. A steel casing with a reinforcing cage positioning device as described in claim 3, characterized in that, The fixing component (32) includes: A fixing plate (321) is fixedly installed at the extended end of the electric push rod (313); A fixing seat (322) is disposed on the side of the fixing plate (321) near the steel casing body (10), and the other end of the steel plate (33) is installed inside the fixing seat (322).

5. A steel casing with a reinforcing cage positioning device as described in claim 4, characterized in that, Both sides of the fixed base (322) are threaded with threaded rods (323), and both sides of the steel plate (33) near the fixed base (322) are provided with fixing grooves (331), and the threaded rods (323) are matched with the size of the fixing grooves (331).

6. A steel casing with a reinforcing cage positioning device as described in claim 1, characterized in that, The top of the steel casing body (10) is symmetrically provided with two pairs of lifting holes (40) for hoisting.

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