A kind of hoisting and centering device for pier column reinforcement cage

Abstract

The application discloses a kind of hoisting centering device for pier column reinforcement cage, it is related to pier column reinforcement cage installation technical field.The positioning member and centering member are included;Positioning member is installed in the bottom of pile foundation pit where pier column reinforcement cage is to be placed, centering member is installed on pier column reinforcement cage;Wherein, laser pen is installed on positioning member, laser pen is coaxially arranged with pile foundation pit by positioning member, positioning cone is installed on centering member, and pier column reinforcement cage is placed in pile foundation pit by hoisting.The application can intuitively judge the centering condition of pier column reinforcement cage by positioning member and centering member, and the position of light spot is observed in real time during hoisting process, so that the reinforcement cage can be accurately adjusted to the coaxial position of pile foundation pit, to ensure the installation accuracy of pier column reinforcement cage, effectively avoid the problem of uneven structure stress caused by position deviation, and improve the construction quality and stability of pier column.

Description

Technical Field

[0001] This invention relates to the field of pier column reinforcement cage installation technology, specifically to a hoisting and centering device for pier column reinforcement cages. Background Technology

[0002] During the concrete pouring process of the pier column, the reinforcing cage acts as the internal skeleton, providing a supporting framework for the pier column. Before the concrete hardens, it maintains the basic shape and size of the pier column, preventing excessive deformation of the concrete under its own weight or external loads.

[0003] Traditional rebar cage hoisting and centering methods use plumb bobs, which are not only inefficient but also suffer from drawbacks such as difficulty in controlling the length of the hoisting ropes, the plumb bob's tendency to swing during centering, and errors in observation due to the plumb bob not being in close contact with the center point. This inevitably leads to the pier column's rebar protective layer, axial misalignment, and pier column verticality failing to meet design and specification requirements, easily affecting the quality of the bridge project. Therefore, to avoid situations where the pier column rebar protective layer, axial misalignment, and pier column verticality fail to meet design and specification requirements during hoisting, this invention proposes a novel pier column rebar cage hoisting and centering device to solve the aforementioned problems. Summary of the Invention

[0004] The purpose of this invention is to provide a hoisting and centering device for pier column reinforcement cages. By using this device during the hoisting and centering process of pier column reinforcement cages, the center point of the laser projection is controlled to control the centering of the pier column reinforcement cages, thereby reducing the extra consumption of mechanical equipment due to rework and effectively ensuring the quality of the pier column.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a hoisting and centering device for a pier reinforcement cage, comprising: a positioning component and a centering component; the positioning component is installed at the bottom of the pile foundation pit where the pier reinforcement cage is to be placed, and the centering component is installed on the pier reinforcement cage; wherein, a laser pointer is installed on the positioning component, the laser pointer is coaxially set with the pile foundation pit through the positioning component, and a positioning cone is installed on the centering component; the pier reinforcement cage is hoisted and placed in the pile foundation pit, and the centering of the pier reinforcement cage is achieved through the cooperation of the laser pointer and the positioning cone during the hoisting process.

[0006] Further, the positioning component includes a leveling frame, which is plate-shaped and has at least two sets of centering auxiliary components on its edges. The centering auxiliary components are equipped with leveling components. The laser pointer is centrally installed in the middle of the leveling frame. The leveling frame is adjusted by the centering auxiliary components and the leveling components to make the laser pointer coaxial with the pile foundation pit.

[0007] Further, the centering auxiliary component includes a sleeve rod fixed to the edge of the leveling frame. When the leveling frame is set horizontally, the sleeve rod is also horizontal to the horizontal plane. A plug rod is inserted into the end of the sleeve rod away from the leveling frame. A stop plate is fixed to the end of the plug rod away from the sleeve rod. The stop plate is hollow in the middle and is made of elastic sheet material. The side of the stop plate that is in contact with the wall of the pile foundation pit is arc-shaped.

[0008] Further, the surface of the sleeve rod is set as a plane and is horizontal to the top surface of the constant level frame. A positioning piece is fixed on the insertion rod. After being bent, the positioning piece is parallel to the plane of the sleeve rod. A fixing screw is tightened on the positioning piece to fix the insertion rod.

[0009] Further, the leveling component includes a screw rod screwed to one end of the sleeve rod near the leveling frame. The screw rod is perpendicular to the top surface of the leveling frame. A positioning seat is screwed to the bottom end of the screw rod. A baffle plate is also fixed on the surface of the screw rod and is located below the sleeve rod.

[0010] Further, the centering component includes a second leveling frame, which is also plate-shaped and has at least two sets of connectors on its edges. The centering component is coaxially mounted with the pier reinforcement cage via the connectors. A through hole is provided in the middle of the second leveling frame, and a positioning cone is installed at the through hole. The positioning cone is made of semi-transparent acrylic material. The semi-transparent acrylic positioning cone can not only clearly display the position of the laser beam, but also allow construction personnel to intuitively observe the relative positional relationship between the positioning cone and the pier reinforcement cage. This facilitates timely detection and correction of deviations during hoisting. This visual centering method reduces errors caused by human judgment, improves the accuracy and reliability of centering operations, and also helps construction personnel to better grasp the centering situation during hoisting, make timely adjustments and optimizations, and ensure construction quality.

[0011] Further, the connecting component includes a sleeve rod two, into which a plug rod two is inserted. Limiting plates are fixed on the surface of the plug rod two and at the end of the sleeve rod two away from the constant level frame two. An adjusting bolt is screwed onto the limiting plate fixed on the sleeve rod two, and the other end of the adjusting bolt is rotatably mounted on the limiting plate on the surface of the plug rod two.

[0012] Furthermore, one end of the second insertion rod is fixed with a fork arm, which is fork-shaped.

[0013] Further regarding this scheme, the leveling frame controls the ground clearance of -cm, and a level bubble is installed on the top surface of the leveling frame.

[0014] The dimensions of the positioning and centering components of this device can be customized according to different pier and pile foundation pit sizes, exhibiting excellent versatility and adaptability. Whether it is a pile foundation pit of different diameters and depths or a pier reinforcement cage of different specifications, precise hoisting and centering can be achieved by adjusting the corresponding components of the device, meeting the needs of various bridge projects and similar structure constructions, and has a wide range of applications.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] This centering device for hoisting and aligning the steel reinforcement cage of the pier column, through positioning and centering components, allows construction personnel to visually judge the alignment of the steel reinforcement cage. During the hoisting process, by observing the position of the light spot in real time, the steel reinforcement cage can be precisely adjusted to a position coaxial with the pile foundation pit, ensuring the installation accuracy of the steel reinforcement cage of the pier column. This effectively avoids problems such as uneven structural stress caused by positional deviations, and improves the construction quality and stability of the pier column.

[0017] Meanwhile, the dimensions of the positioning and centering components of this device can be customized according to different pier and pile foundation pit sizes, exhibiting excellent versatility and adaptability. Whether it's pile foundation pits of different diameters and depths, or pier reinforcement cages of different specifications, precise hoisting and centering can be achieved by adjusting the corresponding components of the device, meeting the needs of various bridge projects and similar structure constructions, and demonstrating a wide range of applications.

[0018] In addition, the device has a reasonable structural design, and the components are connected by plug-in, screw-in and other methods, which facilitates disassembly and assembly. It can be easily transferred and reused between different construction projects, reducing construction costs and improving resource utilization. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 This is a side view structural diagram of the present invention.

[0021] In the diagram: 1. Leveling frame one; 101. Laser pointer; 102. Bubble spirit; 103. Sleeve rod one; 104. Insert rod one; 105. Support plate; 106. Fixing screw; 107. Positioning plate; 108. Screw; 109. Baffle plate; 110. Positioning seat; 2. Leveling frame two; 201. Positioning cone; 202. Sleeve rod two; 203. Insert rod two; 204. Fork arm; 205. Limiting plate; 206. Adjusting bolt. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] like Figure 1 As shown, the present invention provides a technical solution: a centering device for hoisting a pier reinforcement cage, comprising: a positioning component and a centering component; the positioning component is installed at the bottom of the pile foundation pit where the pier reinforcement cage is to be placed, and the centering component is installed on the pier reinforcement cage; wherein, a laser pointer 101 is installed on the positioning component, the laser pointer 101 is coaxially set with the pile foundation pit through the positioning component, and a positioning cone 201 is installed on the centering component; the pier reinforcement cage is hoisted and placed in the pile foundation pit, and the centering placement of the pier reinforcement cage is achieved through the cooperation of the laser pointer 101 and the positioning cone 201 during the hoisting process.

[0024] The positioning component is installed at the bottom of the pile foundation pit and is precisely aligned with the axis of the pile foundation pit using a laser pointer 101 as a reference coordinate system. The centering component is fixed to the top of the pier column reinforcement cage and receives laser signals through the positioning cone 201 to provide real-time feedback on the lifting position deviation of the reinforcement cage. When lifting the reinforcement cage, the operator observes the landing point of the laser on the positioning cone 201. If it deviates from the center, the lifting posture is adjusted until the laser point is located at the center of the cone top, achieving precise centering.

[0025] like Figure 1 As shown, in this embodiment, the positioning component includes a leveling frame 1, which is plate-shaped and has at least two sets of centering auxiliary components on its edges. The centering auxiliary components are further equipped with leveling components. The laser pointer 101 is centrally installed in the middle of the leveling frame 1. The leveling frame 1 is adjusted by the centering auxiliary components and the leveling components to make the laser pointer 101 coaxial with the pile foundation pit. The leveling frame 1 provides a rigid support platform. Through the independent fine-tuning of multiple sets of leveling components, the unevenness of the pit bottom is compensated, so that the leveling frame 1 reaches a horizontal state.

[0026] like Figure 1As shown, in this embodiment, the centering auxiliary component includes a sleeve rod 103 fixed to the edge of the leveling frame 1. When the leveling frame 1 is set horizontally, the sleeve rod 103 is also horizontal to the horizontal plane. A plug rod 104 is inserted into the end of the sleeve rod 103 away from the leveling frame 1. A stop plate 105 is fixed to the end of the plug rod 104 away from the sleeve rod 103. The stop plate 105 is hollow in the middle and is an elastic sheet. The side of the stop plate 105 that is in contact with the pile foundation pit wall is arc-shaped. The sleeve rod 103 is horizontally fixed to the edge of the leveling frame 1. The plug rod 104 can be telescopically inserted into the sleeve rod 103 to form a radial extension arm. The arc surface of one end of the stop plate 105 fits the side wall of the pile pit to adapt to the irregular surface of the pit wall. The elastic deformation provides flexible contact pressure.

[0027] like Figure 1 As shown in this embodiment, the surface of the sleeve rod 103 is set as a plane and is horizontal to the top surface of the constant level frame 1. A positioning piece 107 is fixed on the insertion rod 104. After being bent, the positioning piece 107 is parallel to the plane of the sleeve rod 103. A fixing screw 106 is tightened on the positioning piece 107. The insertion rod 104 is fixed by the fixing screw 106. After the insertion depth of the insertion rod 104 is adjusted, the positioning piece 107 is bent to fit the plane of the sleeve rod 103 and locked by the fixing screw 106 to fix the position of the insertion rod 104.

[0028] like Figure 1 As shown, in this embodiment, the leveling component includes a screw 108 screwed to one end of the sleeve rod 103 near the leveling frame 1. The screw 108 is perpendicular to the top surface of the leveling frame 1. A positioning seat 110 is screwed to the bottom end of the screw 108. A baffle 109 is also fixed to the surface of the screw 108 and is located below the sleeve rod 103. The screw 108 is screwed vertically to one end of the sleeve rod 103. Rotating the screw 108 can adjust the height of the sleeve rod 103, thereby changing the height of the local support point of the leveling frame 1. The baffle 109 can prevent the screw 108 from being excessively screwed out, causing the sleeve rod 103 to detach from the positioning seat 110, ensuring the structural stability during the leveling process. During the operation, each group of screws 108 is adjusted in sequence, and the state of the level bubble 102 is observed to make the leveling frame 1 level as a whole. Finally, the laser pointer 101 is aligned with the axis of the pile pit.

[0029] like Figure 1As shown in the embodiment, the centering component includes a second leveling frame 2, which is also plate-shaped and has at least two sets of connecting parts on its edges. The centering component is coaxially arranged with the pier column reinforcement cage through the connecting parts. A through hole is opened in the middle of the second leveling frame 2, and a positioning cone 201 is installed at the through hole. The positioning cone 201 is made of semi-transparent acrylic material. The semi-transparent acrylic positioning cone 201 can not only clearly show the position of the laser beam, but also allow construction personnel to intuitively observe the relative positional relationship between the positioning cone 201 and the pier column reinforcement cage. This facilitates timely detection and correction of deviations during hoisting. This visual centering method reduces the error of human judgment, improves the accuracy and reliability of centering operations, and also helps construction personnel to better grasp the centering situation during hoisting, make timely adjustments and optimizations, and ensure construction quality.

[0030] In this embodiment, the connector includes a sleeve rod 202, into which a plug rod 203 is inserted. Limiting plates 205 are fixed on the surface of the plug rod 203 and at the end of the sleeve rod 202 away from the normal leveling frame 2. An adjusting bolt 206 is screwed onto the limiting plate 205 fixed on the sleeve rod 202. The other end of the adjusting bolt 206 is rotatably mounted on the limiting plate 205 on the surface of the plug rod 203. Rotating the adjusting bolt 206 can change the extension length of the plug rod 203. The limiting plate 205 restricts the stroke range to ensure that the connector is tightly fixed to the reinforcing cage.

[0031] like Figure 1 As shown, in this embodiment, one end of the insertion rod 203 is fixed with a fork arm 204. The fork arm 204 is fork-shaped, which facilitates connection and installation with the steel cage. The leveling frame 1 controls the ground clearance of 5-10cm. A level bubble 102 is installed on the top surface of the leveling frame 1 to determine the level status of the leveling frame 1.

[0032] The dimensions of the positioning and centering components of this device can be customized according to different pier and pile foundation pit sizes, exhibiting excellent versatility and adaptability. Whether it is a pile foundation pit of different diameters and depths or a pier reinforcement cage of different specifications, precise hoisting and centering can be achieved by adjusting the corresponding components of the device, meeting the needs of various bridge projects and similar structure constructions, and has a wide range of applications.

[0033] like Figure 1 and Figure 2 As shown, based on the above-mentioned hoisting and centering device for the pier column reinforcement cage, the following hoisting and centering method is proposed, including the following steps:

[0034] Step 1: Install the positioning device at the bottom of the foundation pile pit of the pier column reinforcement cage, and adjust the laser pointer 101 to be coaxial with the foundation pile pit.

[0035] During installation, the positioning component moves the insertion rod 104 out and places the abutment 105 against the inner wall surface of the foundation pit. By adjusting each insertion rod 104, the laser pointer 101 is finally adjusted to be coaxial with the foundation pile pit.

[0036] Step 2: Install the centering component on the pier column reinforcement cage and adjust the positioning cone 201 to be coaxial with the pier column reinforcement cage.

[0037] During the installation of the centering component, the position of the insert rod 203 is adjusted by removing the insert rod 203 and positioning the positioning cone 201 so that it is coaxial with the steel reinforcement cage of the pier column.

[0038] Step 3: Hoist the pier reinforcement cage. During the hoisting process, slowly adjust it using positioning and centering components until the pier reinforcement cage is centered and placed in the foundation pile pit.

[0039] Once the laser pointer 101 is turned on, the beam will always be coaxial with the foundation pile pit. During the hoisting process, the position of the pier reinforcement cage can be determined and adjusted by the position of the laser pointer 101 beam on the positioning cone 201, which simplifies the adjustment procedure under the reinforcement cage.

[0040] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended embodiments and their equivalents.

Claims

1. A device for hoisting and centering steel cages for pier columns, characterized in that, include: Positioning components and centering components; The positioning component is installed at the bottom of the pile foundation pit where the pier reinforcement cage is to be placed, and the centering component is installed on the pier reinforcement cage. A laser pointer (101) is installed on the positioning component, and the laser pointer (101) is set coaxially with the pile foundation pit through the positioning component. A positioning cone (201) is installed on the centering component. The pier reinforcement cage is placed in the pile foundation pit by hoisting, and the centering placement of the pier reinforcement cage is achieved by the cooperation of the laser pointer (101) and the positioning cone (201) during the hoisting process.

2. The centering device for hoisting steel cages for pier columns according to claim 1, characterized in that: The positioning component includes a leveling frame (1), which is plate-shaped and has at least two sets of centering auxiliary components on its edges. The centering auxiliary components are equipped with leveling components. The laser pointer (101) is installed in the center of the leveling frame (1). The leveling frame (1) is adjusted by the centering auxiliary components and the leveling components to make the laser pointer (101) coaxial with the pile foundation pit.

3. The centering device for hoisting steel cages for pier columns according to claim 2, characterized in that: The centering auxiliary component includes a sleeve rod (103) fixed to the edge of the leveling frame (1). When the leveling frame (1) is set horizontally, the sleeve rod (103) is also horizontal to the horizontal plane. The end of the sleeve rod (103) away from the leveling frame (1) is connected to a plug rod (104). The end of the plug rod (104) away from the sleeve rod (103) is fixed with a stop plate (105). The stop plate (105) is hollow in the middle and is an elastic sheet. The side of the stop plate (105) that is in contact with the pile foundation pit wall is arc-shaped.

4. The centering device for hoisting steel cages for pier columns according to claim 3, characterized in that: The surface of the sleeve rod (103) is set as a plane and is horizontal to the top surface of the constant level frame (1). A positioning piece (107) is fixed on the insertion rod (104). After the positioning piece (107) is bent, it is parallel to the plane of the sleeve rod (103). A fixing screw (106) is tightened on the positioning piece (107) to fix the insertion rod (104).

5. A centering device for hoisting steel cages for pier columns according to claim 2, characterized in that: The leveling component includes a screw (108) screwed to one end of the sleeve rod (103) near the leveling frame (1). The screw (108) is perpendicular to the top surface of the leveling frame (1). A positioning seat (110) is screwed to the bottom end of the screw (108). A baffle (109) is also fixed on the surface of the screw (108) and the baffle (109) is located below the sleeve rod (103).

6. The centering device for hoisting steel cages for pier columns according to claim 1, characterized in that: The centering component includes a constant level frame two (2), which is also plate-shaped and has at least two sets of connecting parts on its edge. The centering component is coaxially set with the pier column steel cage through the connecting parts. A through hole is opened in the middle of the constant level frame two (2), and a positioning cone (201) is installed at the through hole. The positioning cone (201) is made of semi-transparent acrylic material.

7. A centering device for hoisting steel cages for pier columns according to claim 6, characterized in that: The connector includes a sleeve rod two (202), a plug rod two (203) is inserted into the sleeve rod two (202), and a limiting piece (205) is fixed on the surface of the plug rod two (203) and the end of the sleeve rod two (202) away from the constant level frame two (2). An adjusting bolt (206) is screwed to the limiting piece (205) fixed on the sleeve rod two (202), and the other end of the adjusting bolt (206) is rotatably installed on the limiting piece (205) on the surface of the plug rod two (203).

8. A centering device for hoisting steel cages for pier columns according to claim 7, characterized in that: One end of the second insertion rod (203) is fixed with a fork arm (204), which is fork-shaped.

9. A centering device for hoisting steel cages for pier columns according to claim 2, characterized in that: The leveling frame (1) controls the ground clearance of 5-10cm, and a level bubble (102) is installed on the top surface of the leveling frame (1).

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