Pile foundation reinforcement cage mounting and lowering positioning device

Abstract

The utility model relates to pile foundation construction, and provides a pile foundation reinforcement cage mounting and lowering positioning device which comprises a foundation pit, a cage body, a plurality of fixing rings arranged at the same height of the inner wall of the foundation pit, a plurality of hooks arranged at the same height of the side wall of the cage body, a plurality of traction devices arranged on the ground and pull ropes connected with the traction devices. The pull rope sequentially bypasses the fixing ring, the hook and the fixing ring from the traction device and then returns to the traction device. The positioning device for installing and lowering the pile foundation reinforcement cage can assist in improving the installation precision of the reinforcement cage.

Description

Technical Field

[0001] The utility model relates to the technical field of pile foundation construction, in particular to a pile foundation reinforcement cage installation and lowering positioning device. Background Art

[0002] A pile foundation is a deep foundation consisting of a pile and a pile cap (referred to as the cap) connected to the top of the pile, or a single pile foundation consisting of a column connected to the pile base. If the pile is completely buried in the soil and the bottom of the cap is in contact with the soil, it is called a low-cap pile foundation. If the upper part of the pile is exposed above ground and the bottom of the cap is above ground, it is called a high-cap pile foundation.

[0003] One construction method for pile foundations is to first drill a hole on the construction site, then place a prefabricated steel cage into the pile hole, and finally pour concrete into the pile hole. However, in actual operation, the steel cage is usually lifted by a crane and then lowered into the pile hole. When the steel cage is hoisted, due to its large length, diameter and weight, it may be skewed to a certain extent after being hoisted. Once the heavy steel cage is placed in the pile hole, it is difficult to correct it manually. After pouring concrete, the skewed steel cage may cause different concrete thicknesses at different parts of the circumference of the steel cage, which will have a certain impact on the strength of the pile foundation. Therefore, a positioning device can be designed that can assist in adjusting the position of the steel cage during the lowering process of the steel cage to improve the installation accuracy of the steel cage. Utility Model Content

[0004] The purpose of the utility model is to provide a pile foundation reinforcement cage installation and lowering positioning device, which can assist in improving the installation accuracy of the reinforcement cage.

[0005] The embodiments of the present invention are realized through the following technical solutions: the pile foundation steel cage installation and lowering positioning device of the present invention includes a foundation pit, a cage body, a plurality of fixing rings arranged at the same height on the inner wall of the foundation pit, a plurality of hooks arranged at the same height on the side walls of the cage body, a plurality of pulling devices arranged on the ground, and a pull rope connected to the pulling device; the pull rope passes through the fixing ring, the hook, the fixing ring in sequence from the pulling device and then returns to the pulling device.

[0006] Furthermore, a fixing plate is provided on the lower side of the fixing ring; the fixing plate is fixed to the inner wall of the foundation pit by bolts.

[0007] Furthermore, the pulling device includes a shell and a winding roller arranged on the shell; the pull rope is provided with a movable end, the movable end of the pull rope is detachably fixedly connected to the shell, and the other end is arranged on the winding roller.

[0008] Furthermore, a first guide wheel is provided on the lower side of one end of the shell close to the foundation pit; the movable end of the pull rope is connected to the shell after passing around the first guide wheel.

[0009] Furthermore, a second guide wheel is provided on the upper side of one end of the shell close to the foundation pit, and the end of the pull rope close to the winding roller passes around the second guide wheel and is connected to the winding roller.

[0010] Furthermore, a distance measuring wheel is provided on the housing, and one end of the pull rope close to the winding roller abuts against the outer side of the distance measuring wheel.

[0011] The technical solution of the embodiment of the present invention has at least the following advantages and beneficial effects: the present invention provides a device for installing and positioning a pile foundation reinforcement cage. When in use, a hook is first welded to the lower end of the cage side wall, and a fixing ring is fixed to the lower end of the inner wall of the foundation pit. Both ends of the pull rope are then fixed to the pulling device. The middle portion of the pull rope is pulled so that it forms a double line, passes through the pull ring, and is then hung on the hook. The cage is then lowered using a crane. During the lowering process, the position of each part of the cage is controlled by multiple pull ropes, so that the cage is in a vertical position and located in the center of the foundation pit. When the cage is positioned, one end of the pull rope is removed from the pulling device and the other end is pulled out to retract the rope. This not only allows for more precise control of the cage position and improves the placement accuracy of the cage, but also simplifies operation, and most of the main structures of the device are reusable, making costs more controllable. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0013] Figure 1 A schematic diagram of the structure of the installation and lowering positioning device for the pile foundation reinforcement cage provided by an embodiment of the utility model;

[0014] Figure 2 A schematic diagram of the internal structure of the pile foundation reinforcement cage installation and lowering positioning device provided by an embodiment of the utility model;

[0015] Figure 3 A schematic diagram of the structure inside the foundation pit provided by an embodiment of the utility model;

[0016] Figure 4 A schematic structural diagram of a housing portion provided in an embodiment of the present utility model;

[0017] Figure 5 for Figure 3 Enlarged view of part A.

[0018] Icons: 11-ground, 12-foundation pit, 13-cage, 21-shell, 22-pull rope, 23-fixing plate, 24-fixing ring, 25-bolt, 26-hook, 27-first guide wheel, 28-second guide wheel, 29-winding roller, 210-measuring wheel. DETAILED DESCRIPTION

[0019] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.

[0021] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0022] In the description of the present invention, it should be noted that if the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the product of the application is usually placed when in use. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0023] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0024] Example

[0025] The following is further described in conjunction with specific embodiments. Figure 1 -Attached Figure 5 As shown, the pile foundation reinforcement cage installation and lowering positioning device of this embodiment includes a foundation pit 12, a cage body 13, a plurality of fixing rings 24 arranged at the same height on the inner wall of the foundation pit 12, a plurality of hooks 26 arranged at the same height on the side walls of the cage body 13, a plurality of pulling devices arranged on the ground 11, and a pull rope 22 connected to the pulling device; the pull rope 22 passes from the pulling device, passes around the fixing ring 24, the hook 26, the fixing ring 24 in sequence, and then returns to the pulling device. Specifically, during use, the hook 26 is first welded to the lower end of the side wall of the cage 13, and the fixing ring 24 is fixed to the lower end of the inner wall of the foundation pit 12. Then, both ends of the pull rope 22 are fixed to the pulling device. The middle part of the pull rope 22 is pulled so that it forms a double line, passes through the pull ring, and is hung on the hook 26. The cage 13 is lowered using a crane. During the lowering process, the position of each part of the cage 13 is controlled by multiple pull ropes 22, so that the cage 13 is vertical and centered in the foundation pit 12. When the position of the cage 13 is determined, one end of the pull rope 22 is removed from the pulling device, and the pull rope 22 is pulled out from the other end to retract the pull rope 22. This not only allows for more precise control of the position of the cage 13 and improves the placement accuracy of the cage 13, but also simplifies operation, and most of the main components of the device can be reused, making the cost more controllable.

[0026] In this embodiment, a fixing plate 23 is provided on the lower side of the fixing ring 24; the fixing plate 23 is fixed to the inner wall of the foundation pit 12 by bolts 25. Specifically, the fixing plate 23 can be fixed to the inner wall of the foundation pit 12 by expansion bolts 25, etc., and its position is close to the lower end of the foundation pit 12.

[0027] The pulling device in this embodiment includes a housing 21 and a winding roller 29 provided on the housing 21. The pull rope 22 has a movable end that is detachably fixedly connected to the housing 21, and the other end is provided on the winding roller 29. A first guide wheel 27 is provided on the lower side of the end of the housing 21 near the foundation pit 12. The movable end of the pull rope 22 passes around the first guide wheel 27 and then connects to the housing 21. A second guide wheel 28 is provided on the upper side of the end of the housing 21 near the foundation pit 12. The end of the pull rope 22 near the winding roller 29 passes around the second guide wheel 28 and then connects to the winding roller 29. Specifically, the first guide wheel 27 and the second guide wheel 28 are mainly used to better connect the pull rope 22 to the housing 21 and the winding roller 29, preventing the pull rope 22 from contacting the ground 11. The winding roller 29 can be controlled by a worker to rotate so that it always keeps the pull rope 22 taut, or a motor can be used to drive the winding roller 29 to rotate slowly.

[0028] In this embodiment, a distance measuring wheel 210 is provided on the housing 21, and one end of the pull rope 22 near the winding roller 29 abuts against the outer side of the distance measuring wheel 210. Specifically, the distance measuring wheel 210 is used to measure the distance the pull rope 22 descends, so that the descending height of each part of each cage 13 can be more intuitively displayed.

[0029] In summary, the pile foundation reinforcement cage installation and positioning device of this embodiment is first used by welding the hook 26 to the lower end of the side wall of the cage body 13, and fixing the fixing ring 24 to the lower end of the inner wall of the foundation pit 12. Then, both ends of the pull rope 22 are fixed to the pulling device. The middle portion of the pull rope 22 is pulled so that it is double-lined, passes through the pull ring, and is hung on the hook 26. The cage body 13 is lowered using a crane. During the lowering process, the position of each part of the cage body 13 is controlled by multiple pull ropes 22, so that the cage body 13 is vertical and centered in the foundation pit 12. When the position of the cage body 13 is determined, one end of the pull rope 22 is removed from the pulling device, and the pull rope 22 is pulled out from the other end to be recovered. This not only allows for more precise control of the position of the cage body 13 and improves the placement accuracy of the cage body 13, but also simplifies operation, and most of the main components of the device are reusable, making the cost more controllable.

[0030] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A device for installing and positioning a pile foundation reinforcement cage, comprising a foundation pit (12) and a cage body (13), characterized in that: It comprises a plurality of fixing rings (24) arranged at the same height on the inner wall of the foundation pit (12), a plurality of hooks (26) arranged at the same height on the side wall of the cage (13), a plurality of pulling devices arranged on the ground (11), and a pull rope (22) connected to the pulling devices; The pull rope (22) passes from the pulling device, sequentially around the fixing ring (24), the hook (26), the fixing ring (24), and then returns to the pulling device.

2. The pile foundation reinforcement cage installation and positioning device according to claim 1 is characterized in that: A fixing plate (23) is provided on the lower side of the fixing ring (24); the fixing plate (23) is fixed to the inner wall of the foundation pit (12) by bolts (25).

3. The pile foundation reinforcement cage installation and positioning device according to claim 1 is characterized in that: The pulling device comprises a housing (21) and a winding roller (29) provided on the housing (21); The pull rope (22) is provided with a movable end, the movable end of the pull rope (22) is detachably fixedly connected to the housing (21), and the other end is provided on the winding roller (29).

4. The device for installing and positioning a pile foundation reinforcement cage according to claim 3, characterized in that: A first guide wheel (27) is provided on the lower side of one end of the shell (21) close to the foundation pit (12); the movable end of the pull rope (22) passes around the first guide wheel (27) and is connected to the shell (21).

5. The device for installing and positioning a pile foundation reinforcement cage according to claim 3 is characterized in that: A second guide wheel (28) is provided on the upper side of one end of the shell (21) close to the foundation pit (12), and one end of the pull rope (22) close to the winding roller (29) passes around the second guide wheel (28) and is connected to the winding roller (29).

6. The device for installing and lowering a pile foundation reinforcement cage according to claim 5, characterized in that: A distance measuring wheel (210) is provided on the housing (21), and one end of the pull rope (22) close to the winding roller (29) abuts against the outer side of the distance measuring wheel (210).

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