Steel casing with pile foundation girdling elevation positioning function

Abstract

The steel pile casing comprises a steel pile casing body, a reinforcement cage is arranged in the steel pile casing body, a plurality of positioning mechanisms are arranged on the side of the steel pile casing body, a plurality of positioning grooves are formed in the elevation position of the steel pile casing body, and each positioning mechanism comprises a steel plate block, a plurality of pile foundation ring cutting positioning grooves and a plurality of pile foundation ring cutting positioning grooves. The steel plate block is slidably connected to the outer side of the positioning groove, one end of the steel plate block extends into the positioning groove, and the steel plate block is matched with the positioning groove in size; the pushing assembly is arranged on the outer side of the steel casing body and drives the base plate and the plugging block to move towards the steel casing body through an electric push rod, so that the plugging block drives the steel plate block to move towards the positioning groove, the plugging block is inserted into the positioning groove, the steel plate block is inserted into concrete in the steel casing body, and the steel plate block is left at the elevation position of the pile head; the annular cutting position is positioned, and the steel plate blocks prevent the influence of air pick breaking, so that the concrete surface of the broken pile head is smooth and attractive, and the elevation is accurate.

Description

Technical Field

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

[0002] Steel casing is a steel retaining structure used in the construction of manually excavated or driven piles when the soil is unstable or the construction of reinforced concrete retaining walls is difficult. It is mainly used to protect the piles, prevent the borehole from collapsing, and ensure construction progress and safety. After the pile foundation construction is completed, the pile head needs to be circumferentially cut to improve the bearing capacity and stability of the foundation.

[0003] However, during the implementation of the relevant technical solutions, at least the following technical problems were found: After the pile foundation construction is completed, a cutting machine is needed to cut the pile head around the pile head, and then a pneumatic hammer is used to break the pile head. When cutting and positioning the pile head, the method of marking lines or cutting out a circumferential groove is generally used to locate the circumferential cutting position. The breaking effect is affected by the cutting depth, the protective layer of the reinforcing steel, and the quality of the workers. Even if circumferential cutting is performed, the breaking effect after the pneumatic hammer is still very poor, which will affect the bearing capacity of the pile foundation. Utility Model Content

[0004] This application provides a steel casing with pile foundation circumferential cutting elevation positioning function, which solves the problem in the prior art that the marked position is easily cut out when positioning the pile head during circumferential cutting, and realizes the effect of setting steel plates for positioning at the elevation position.

[0005] This application provides a steel casing with pile foundation circumferential elevation positioning function, including a steel casing body, a reinforcing cage disposed inside the steel casing body, and multiple positioning mechanisms disposed on the side of the steel casing body. Multiple positioning grooves are opened at the elevation position of the steel casing body. The multiple positioning mechanisms include: a steel plate, slidably connected to the outside of the positioning groove, with one end of the steel plate extending into the inside of the positioning groove, and the steel plate matching the size of the positioning groove; and a pushing component, disposed on the outside of the steel casing body, and the pushing component is used to push the steel plate through the positioning groove and extend into the inside of the steel casing body.

[0006] Furthermore, the pushing assembly includes: a fixing plate disposed on the outside of the steel casing body; a fixing seat disposed at the bottom of the outer end of the fixing plate; an electric push rod disposed inside the fixing seat, with the telescopic end of the electric push rod extending out of the fixing seat; and a sealing component disposed at the outer end of the electric push rod, wherein the sealing component is used to seal the positioning groove when the steel plate is pushed into the interior of the steel casing body.

[0007] Furthermore, the sealing component includes: a pad, disposed at the outer end of the electric push rod, and the pad is in contact with the outer side of the steel casing body; and a sealing block, disposed on the side of the pad near the steel casing body, and one end of the sealing block is in contact with the steel plate, and the sealing block is matched with the size and position of the positioning groove.

[0008] Furthermore, the outer side of the top of the steel casing body is provided with multiple pairs of symmetrically arranged lifting holes.

[0009] Furthermore, the plurality of positioning mechanisms and the plurality of positioning grooves are arranged in a circular pattern at equal intervals on the steel casing body.

[0010] The technical solution provided in this application has at least the following technical effects or advantages:

[0011] The electric push rod drives the pad and sealing block to move towards the steel casing body, causing the sealing block to move the steel plate into the positioning groove. The sealing block is inserted into the positioning groove, causing the steel plate to be inserted into the concrete inside the steel casing body. The steel plate separates from the steel casing body. After the steel casing body is removed, the steel plate remains at the elevation position of the pile head to locate the circumferential cutting position. The steel plate prevents the pneumatic hammer from affecting the breaking, making the broken pile head concrete surface flat, beautiful, and with accurate elevation. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of the steel casing in the embodiments of this application;

[0013] Figure 2 This is a cross-sectional structural diagram of the steel casing body in an embodiment of this application;

[0014] Figure 3 This is a schematic diagram of the positioning mechanism in the embodiments of this application;

[0015] In the diagram: 10, steel casing body; 20, reinforcing cage; 30, positioning mechanism; 40, lifting hole; 50, positioning groove; 31, pushing assembly; 32, steel plate; 311, fixing plate; 312, fixing seat; 313, electric push rod; 314, sealing component; 3141, pad; 3142, sealing block. Detailed Implementation

[0016] This application discloses a steel casing with a pile foundation circumferential cutting elevation positioning function. The sealing block 3142 and steel plate 32 are pushed towards the steel casing body 10 by an electric push rod 313, so that the steel plate 32 is inserted into the concrete inside the steel casing body 10, and the sealing block 3142 is inserted into the positioning groove 50, so that the concrete will not flow out of the positioning groove 50. After the concrete solidifies, the steel casing body 10 is taken out, so that multiple steel plates 32 remain at the elevation of the pile head to position the circumferential cutting. During circumferential cutting, the steel plates 32 are taken out again. Multiple steel plates 32 can prevent the circumferential cutting from going past the elevation position, so that the broken pile head concrete surface will be flat, beautiful and accurate in elevation.

[0017] 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.

[0018] Please refer to Figure 1 and Figure 2 This embodiment provides a steel casing with pile foundation circumferential elevation positioning function, including a steel casing body 10, a reinforcing cage 20 inside the steel casing body 10, multiple positioning mechanisms 30 on the sides of the steel casing body 10, and multiple pairs of symmetrically arranged lifting holes 40 on the outer side of the top of the steel casing body 10 for convenient hoisting. Multiple positioning grooves 50 are provided at the elevation position of the steel casing body 10. The multiple positioning mechanisms 30 and multiple positioning grooves 50 are arranged equidistantly in a ring on the steel casing body 10. The multiple positioning mechanisms 30 include a pushing component 31 and a steel plate 32, the steel plate 32 being slidably connected to the positioning grooves 50. On the outside, one end of the steel plate 32 extends into the interior of the positioning groove 50. The steel plate 32 and the positioning groove 50 are matched in size. The pushing component 31 is set on the outside of the steel casing body 10. The pushing component 31 is used to push the steel plate 32 through the positioning groove 50 and into the interior of the steel casing body 10. By pushing the steel plate 32 from the positioning groove 50 on the steel casing body 10, it is inserted into the concrete inside the steel casing body 10. This makes the multiple ring-shaped steel plates 32 positioned at equal intervals after the concrete solidifies at the elevation of the pile head of the steel casing body 10. This makes it difficult to cut through multiple steel plate 32 positions during circumferential cutting. The steel plate 32 is used to position the elevation.

[0019] Please refer to Figures 1-3The pushing assembly 31 includes a fixing plate 311, a fixing seat 312, an electric push rod 313, and a sealing component 314. The fixing plate 311 is disposed on the outside of the steel casing body 10, the fixing seat 312 is disposed at the bottom of the outer end of the fixing plate 311, the electric push rod 313 is disposed inside the fixing seat 312, and the telescopic end of the electric push rod 313 extends out of the fixing seat 312. The sealing component 314 is disposed at the outer end of the electric push rod 313, and the sealing component 314 is used to seal the steel plate 32 when it is pushed into the steel casing body 10. A sealing gasket is provided between the positioning groove 50, the fixed seat 312 and the telescopic end of the electric push rod 313, so that external soil will not enter the fixed seat 312 from the extended end of the electric push rod 313, preventing damage to the electric push rod 313 inside the fixed seat 312. The extension of the electric push rod 313 drives the sealing component 314 to push the steel plate 32 at the position of the positioning groove 50 to move, so that the steel plate 32 is inserted into the concrete inside the steel casing body 10, thereby allowing multiple steel plates 32 to be positioned at the elevation position for circumferential cutting.

[0020] Please refer to Figures 1-3 The sealing component 314 includes a pad 3141 and a sealing block 3142. The pad 3141 is disposed at the outer end of the electric push rod 313 and is in contact with the outer side of the steel casing body 10. The sealing block 3142 is disposed on the side of the pad 3141 near the steel casing body 10, and one end of the sealing block 3142 is in contact with the steel plate 32. The sealing block 3142 matches the size and position of the positioning groove 50, and the length of the sealing block 3142 is slightly larger than that of the steel casing body 10. The thickness allows the sealing block 3142 to be fully inserted into the positioning groove 50, and the steel plate 32 to pass through the positioning groove 50 and insert into the concrete inside the steel casing body 10. When the sealing block 3142 is fully inserted into the positioning groove 50, the pad 3141 can be tightly attached to the outside of the steel casing body 10, so that the pad 3141 and the sealing block 3142 seal the positioning groove 50, so that the concrete inside the steel casing body 10 will not leak out from the positioning groove 50 and affect the pile foundation construction.

[0021] The functional principle of this application can be explained through the following methods:

[0022] In use, the steel casing body 10 is placed inside the borehole. Multiple positioning slots 50 are opened at appropriate positions on the steel casing body 10. Multiple positioning mechanisms 30 are installed in the positioning slots 50 on the outside of the steel casing body 10. A movable steel plate 32 is inserted into the positioning slot 50, ensuring that the height of the steel plate 32 and the positioning slot 50 is at the designed pile top elevation. Then, the reinforcing cage 20 is placed inside the steel casing body 10, and concrete is poured into the steel casing body 10. The electric push rod 313 in the fixed seat 312 is activated, causing the extended end of the electric push rod 313 to extend. This extends the pad 3141 and the sealing block 3142 towards the steel casing body 10, causing the sealing block 3142 to pull the steel plate 32 into the positioning slot 50. The movement of 42 into the positioning groove 50 causes the steel plate 32 to insert into the concrete in the steel casing body 10. When the sealing block 3142 is fully inserted into the positioning groove 50, the pad 3141 contacts the outside of the steel casing body 10. The sealing block 3142 causes the steel plate 32 to separate from the inner wall of the positioning groove 50 on the steel casing body 10. The elevation position of the steel plate 32 is fully inserted into the concrete. After the pouring is completed, the steel casing body 10 is pulled out, leaving the steel plate 32 in the pile. After the strength is reached, the positions of multiple steel plates 32 are determined by marking lines. The concrete is broken by pneumatic hammer. Multiple steel plates 32 are positioned at the elevation position, so that it is not easy for the pneumatic hammer to cut through the steel plate 32 to cut the marked position when circumferential cutting. After circumferential cutting, multiple steel plates 32 are retrieved. The broken pile head concrete surface will be flat, beautiful and accurate in elevation.

[0023] 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.

[0024] 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 pile foundation circumferential elevation positioning function, comprising a steel casing body (10), characterized in that, The steel casing body (10) is internally provided with a reinforcing cage (20), and multiple positioning mechanisms (30) are provided on the side of the steel casing body (10). Multiple positioning grooves (50) are opened at the elevation position of the steel casing body (10). The multiple positioning mechanisms (30) include: A steel plate (32) is slidably connected to the outside of the positioning groove (50), and one end of the steel plate (32) extends into the interior of the positioning groove (50). The steel plate (32) matches the size of the positioning groove (50). A pushing component (31) is disposed on the outside of the steel casing body (10), and the pushing component (31) is used to push the steel plate (32) through the positioning groove (50) and extend into the interior of the steel casing body (10).

2. A steel casing with pile foundation circumferential elevation positioning function as described in claim 1, characterized in that, The actuation component (31) includes: A fixing plate (311) is disposed on the outside of the steel casing body (10); A fixing seat (312) is disposed at the bottom of the outer end of the fixing plate (311); An electric push rod (313) is disposed inside the fixed base (312), and the telescopic end of the electric push rod (313) extends out of the fixed base (312); A blocking component (314) is disposed at the outer end of the electric push rod (313), and the blocking component (314) is used to block the positioning groove (50) when the steel plate (32) is pushed into the steel casing body (10).

3. A steel casing with pile foundation circumferential elevation positioning function as described in claim 2, characterized in that, The sealing component (314) includes: A pad (3141) is disposed at the outer end of the electric push rod (313), and the pad (3141) is in contact with the outer side of the steel casing body (10); A sealing block (3142) is disposed on the side of the pad (3141) close to the steel casing body (10), and one end of the sealing block (3142) is in contact with the steel plate (32). The sealing block (3142) matches the size and position of the positioning groove (50).

4. A steel casing with pile foundation circumferential elevation positioning function as described in claim 1, characterized in that, The outer side of the top of the steel casing body (10) is provided with multiple pairs of symmetrically arranged lifting holes (40).

5. A steel casing with pile foundation circumferential elevation positioning function as described in claim 1, characterized in that, The multiple positioning mechanisms (30) and the multiple positioning grooves (50) are arranged in a ring at equal intervals on the steel casing body (10).

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