A pile foundation reinforcement cage vertical positioning device

Abstract

The application relates to a vertical positioning device for a pile foundation reinforcement cage, which comprises a portal support placed on the ground at the top of a pile hole, a rigid support member extending into a steel casing and hung on the portal support, wherein the rigid support member comprises a vertical rod, the bottom of the vertical rod is provided with a U-shaped groove with an open bottom, a hoop of the reinforcement cage is clamped into the U-shaped groove, a anti-disengagement screw is threadedly connected to the bottom of the vertical rod, the anti-disengagement screw penetrates through the U-shaped groove in the horizontal direction to limit the hoop from disengaging from the U-shaped groove, a pull rope is wound around the end of the anti-disengagement screw, and when the pull rope is pulled upwards, the anti-disengagement screw is driven to rotate and disengage from the vertical rod, and a anti-floating assembly is connected with the portal support and abuts against the rigid support member to prevent the rigid support member from moving upwards. The vertical positioning device can limit the sinking and floating of the reinforcement cage and is convenient to disassemble.

Description

Technical Field

[0001] This application relates to the field of pile foundation reinforcement cage construction technology, and in particular to a vertical positioning device for pile foundation reinforcement cages. Background Technology

[0002] Currently, during pile foundation construction, the vertical positioning of the reinforcing cage is typically achieved by suspending it from the top surface of the steel casing using lifting bars. However, during the secondary cleaning of the borehole, the steel casing is difficult to maintain stability for extended periods, and it is prone to sinking. This sinking of the reinforcing cage leads to insufficient length of the reinforcing bars anchored into the pile cap at the top, affecting the overall load-bearing performance of the pile foundation structure.

[0003] During the concrete pouring stage, the first batch of concrete may cause the reinforcing cage to float up, forming a plain concrete section when the reinforcing cage is lowered, thus affecting the bearing capacity of the pile foundation.

[0004] In addition, traditional suspension bar structures require manual dismantling of the suspension bars and steel cage inside the pile hole when retrieving the suspension bars, which is inconvenient for construction.

[0005] Therefore, there is a need for a vertical positioning device that can stably position the reinforcing cage vertically, prevent the reinforcing cage from sinking or floating, and facilitate the removal of the connection structure between the reinforcing cage and the reinforcing cage. Utility Model Content

[0006] Therefore, it is necessary to provide a vertical positioning device for pile foundation steel cages, and its specific technical solution is as follows.

[0007] A vertical positioning device for a pile foundation reinforcement cage includes:

[0008] A gantry frame is placed on the ground at the top of the pile hole;

[0009] A rigid support extends into the steel casing and is suspended from the portal frame; the rigid support includes a vertical rod, the bottom of which is provided with a U-groove with an opening at the bottom, so that the stirrups of the steel cage can be inserted into the U-groove; the bottom of the vertical rod is threaded with an anti-detachment screw, which passes through the U-groove in the horizontal direction to prevent the stirrups from detaching from the U-groove;

[0010] A pull rope is wrapped around the end of the anti-detachment screw, so that when the pull rope is pulled upward, it drives the anti-detachment screw to rotate and detach out of the vertical rod;

[0011] The anti-floating component connects to the gantry bracket and abuts against the rigid support, preventing the rigid support from moving upward.

[0012] Furthermore, the winding direction of the pull rope is the same as the unscrewing direction of the anti-detachment screw.

[0013] Furthermore, the end of the anti-detachment screw is provided with a winding groove, and the pull rope is wound in the winding groove.

[0014] Furthermore, after the end of the pull rope is tied into the winding groove, it is then wound into the winding groove.

[0015] Furthermore, the end of the anti-detachment screw is located on the outside of the rigid support member.

[0016] Furthermore, nuts are welded to both sides of the bottom of the vertical rod, the nuts are located on the side of the U-groove, and the anti-loosening screw is threadedly connected to the nuts.

[0017] Furthermore, the rigid support includes two vertical rods and multiple horizontal rods arranged in the vertical direction; each horizontal rod is connected to the two vertical rods to form a staircase structure.

[0018] Furthermore, the anti-floating component includes two sets of vertical adjustment components and a limiting plate; the two sets of vertical adjustment components are located on both sides of the horizontal bar and connected to the gantry bracket; the limiting plate abuts against the top of a horizontal bar and is detachably connected to the ends of the two sets of vertical adjustment components respectively.

[0019] Furthermore, the vertical adjustment component includes a threaded sleeve and a clamping screw; the threaded sleeve is connected to the portal frame; the clamping screw is threadedly connected to the threaded sleeve and connected to the limiting plate by bolts.

[0020] Furthermore, the portal frame includes columns, beams, and a counterweight platform; the beams are connected to two columns to form a portal shape; the counterweight platform is connected to the columns, and a counterweight block is placed on the counterweight platform; the beams include two spaced sub-beams, and the rigid support is located between the two sub-beams.

[0021] Beneficial effects: The vertical positioning device for pile foundation reinforcement cages provided by this utility model can prevent the reinforcement cage from sinking by suspending the rigid support member on the portal frame and setting the portal frame on the ground; the anti-floating component connected to the portal frame and abutting against the rigid support member can prevent the reinforcement cage from floating; by inserting the stirrups of the reinforcement cage into the U-groove and limiting the stirrups with the anti-detachment screw, the connection between the rigid support frame and the reinforcement cage can be realized; and by pulling the anti-detachment screw with a rope, the stirrups can be released, which can quickly and conveniently disconnect the connection between the rigid support member and the reinforcement cage and quickly retrieve the vertical positioning device. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the overall structure of the vertical positioning device;

[0024] Figure 2 This is a schematic diagram showing the engagement of the U-groove at the bottom of the vertical bar with the stirrup.

[0025] Figure 3 A schematic diagram of the anti-floating component.

[0026] Explanation of reference numerals in the attached diagram: 1. Gantry frame; 2. Rigid support; 3. Pull rope; 4. Anti-floating component; 5. Chain hoist; 6. Reinforcing cage;

[0027] 11. Column; 12. Horizontal beam; 13. Counterweight platform; 14. Counterweight block; 15. Sub-beam;

[0028] 21. Vertical rod; 22. U-groove; 23. Anti-loosening screw; 24. Winding groove; 25. Nut; 26. Horizontal rod;

[0029] 41. Vertical adjustment component; 42. Limiting plate; 43. Threaded sleeve; 44. Clamping screw;

[0030] 61. Stirrups. Detailed Implementation

[0031] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0032] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0033] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0034] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0035] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0036] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0037] Example

[0038] Reference Figure 1 As shown, this embodiment provides a vertical positioning device for a pile foundation reinforcement cage, including a portal frame 1, a rigid support 2, a pull rope 3, and an anti-floating component 4. The portal frame 1 is placed on the ground at the top of the pile hole. The rigid support 2 extends into the steel casing and is suspended from the portal frame 1, specifically using a chain hoist 5 for suspension. The height of the rigid support 2 can be adjusted by releasing the chain hoist 5. (Refer to...) Figure 2 As shown, the rigid support 2 includes a vertical rod 21. The bottom of the vertical rod 21 is provided with a U-groove 22 with an opening at the bottom, so that the topmost stirrup 61 of the steel cage 6 can be inserted into the U-groove 22. The bottom of the vertical rod 21 is threaded with an anti-detachment screw 23. The anti-detachment screw 23 passes through the U-groove 22 in the horizontal direction to prevent the stirrup 61 from detaching from the U-groove 22.

[0039] The pull rope 3 is wound around the end of the anti-detachment screw 23, so that pulling the pull rope 3 upward drives the anti-detachment screw 23 to rotate and unscrew out of the vertical rod 21. The winding direction of the pull rope 3 is the same as the unscrewing direction of the anti-detachment screw 23. For example, when the thread on the anti-detachment screw 23 is a right-hand thread, the unscrewing direction of the anti-detachment screw 23 is counterclockwise. The pull rope 3 is wound counterclockwise around the end of the anti-detachment screw 23. When it is necessary to separate the vertical rod 21 and the stirrups 61 of the steel cage 6, pulling the pull rope 3 upward will drive the anti-detachment screw 23 to rotate counterclockwise and unscrew.

[0040] Reference Figure 3 As shown, the anti-floating component 4 is connected to the portal frame 1 and abuts against the rigid support 2, preventing the rigid support 2 from moving upward.

[0041] The vertical positioning device for a pile foundation reinforcement cage provided in this embodiment prevents the reinforcement cage 6 from sinking by suspending the rigid support 2 on the portal frame 1 and placing the portal frame 1 on the ground. The anti-floating component 4 is connected to the portal frame 1 and abuts against the rigid support 2 to prevent the reinforcement cage 6 from floating. The connection between the rigid support frame and the reinforcement cage 6 is achieved by inserting the stirrups 61 of the reinforcement cage 6 into the U-groove 22 and limiting the stirrups 61 by the anti-detachment screw 23. The stirrups 61 can be released by pulling the anti-detachment screw 23 by pulling the rope 3, which can quickly and conveniently disconnect the connection between the rigid support 2 and the reinforcement cage 6 and quickly retrieve the vertical positioning device.

[0042] Specifically, continue to refer to Figure 2 As shown, the end of the anti-detachment screw 23 is provided with a winding groove 24, and the pull rope 3 is wound around in the winding groove 24. This facilitates winding the pull rope 3.

[0043] Specifically, the end of the pull rope 3 is tied into the winding groove 24 and then wound into the winding groove 24. When the pull rope 3 is pulled to disengage the anti-detachment screw 23, continuing to lift the pull rope 3 upwards can lift the anti-detachment screw 23 up as well, preventing the anti-detachment screw 23 from falling. The end of the anti-detachment screw 23 is located on the outside of the rigid support member 2.

[0044] Specifically, nuts 25 are welded to both sides of the bottom of the vertical rod 21, and the nuts 25 are located on the side of the U-groove 22. The anti-loosening screw 23 is threadedly connected to the nuts 25. This design is convenient to manufacture and source materials. Alternatively, the nuts 25 can be welded only to the side of the vertical rod 21 furthest from the end of the anti-loosening screw 23. When removing the anti-loosening screw 23, only a small section needs to be unscrewed to pull it outwards.

[0045] Specifically, the rigid support 2 includes two vertical rods 21 and multiple horizontal rods 26 arranged vertically; each horizontal rod is connected to one of the two vertical rods 21 to form a staircase structure. The staircase structure allows workers to easily access the pile hole when necessary.

[0046] Specifically, continue to refer to Figure 3 As shown, the anti-floating assembly 4 includes two sets of vertical adjustment members 41 and a limiting plate 42. The two sets of vertical adjustment members 41 are located on both sides of the horizontal rod 26 and are connected to the portal frame 1. The limiting plate 42 abuts against the top of one horizontal rod 26 and is detachably connected to the ends of the two sets of vertical adjustment members 41. After adjusting the ends of the vertical adjustment members 41 to the target position according to the position of the rigid support member 2, the two limiting plates 42 abut against the top of the horizontal rod 26, and the limiting plates 42 are connected to the two sets of vertical adjustment members 41 respectively by bolts, thereby restricting the upward movement of the rigid support member 2.

[0047] Specifically, the vertical adjustment component 41 includes a threaded sleeve 43 and a clamping screw 44; the threaded sleeve 43 is connected to the gantry bracket 1; the clamping screw 44 is threadedly connected to the threaded sleeve 43 and connected to the limiting plate 42 by bolts. The height of its end can be adjusted by rotating the clamping screw 44.

[0048] Specifically, the portal frame 1 includes columns 11, crossbeams 12, and a counterweight platform 13. The crossbeams 12 are connected to two columns 11 to form a portal shape. The counterweight platform 13 is connected to the columns 11, and a counterweight block 14 is placed on the counterweight platform 13. The crossbeams 12 include two spaced sub-beams 15, and the rigid support member 2 is located between the two sub-beams 15. The counterweight block 14 is used to maintain the stability of the portal frame 1. Two vertical adjustment members 41 are connected to the two sub-beams 15 respectively.

[0049] Construction process:

[0050] After releasing the reinforcing cage 6 to a certain height, first insert the stirrups 61 into the U-groove 22, and install the anti-detachment screw 23 to connect the rigid support 2 to the reinforcing cage 6. Continue lowering the reinforcing cage 6, and simultaneously release the chain hoist 5 to move the rigid support 2 down synchronously. During the lowering process, keep the pull rope 3 in a relaxed state. After the lowering is completed, adjust the height of the end of the vertical adjustment component 41 so that the limiting plate 42 abuts against the top of the horizontal bar 26, and is bolted to the ends of the two vertical supports respectively.

[0051] When the concrete pouring height reaches half of the designed pile length, the vertical positioning device is removed. During removal, the anti-detachment screw rod 23 can be easily removed by pulling up the rope 3, and the connection between the rigid support 2 and the steel cage 6 can be quickly released.

[0052] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0053] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A vertical positioning device for a pile foundation reinforcement cage, characterized in that, include: A gantry frame is placed on the ground at the top of the pile hole; A rigid support extends into the steel casing and is suspended from the portal frame; the rigid support includes a vertical rod, the bottom of which is provided with a U-groove with an opening at the bottom, so that the stirrups of the steel cage can be inserted into the U-groove; the bottom of the vertical rod is threaded with an anti-detachment screw, which passes through the U-groove in the horizontal direction to prevent the stirrups from detaching from the U-groove; A pull rope is wrapped around the end of the anti-detachment screw, so that when the pull rope is pulled upward, it drives the anti-detachment screw to rotate and detach out of the vertical rod; The anti-floating component connects to the gantry bracket and abuts against the rigid support, preventing the rigid support from moving upward.

2. The vertical positioning device for a pile foundation reinforcement cage according to claim 1, characterized in that, The winding direction of the pull rope is the same as the unscrewing direction of the anti-detachment screw.

3. The vertical positioning device for a pile foundation reinforcement cage according to claim 2, characterized in that, The end of the anti-detachment screw is provided with a winding groove, and the pull rope is wound in the winding groove.

4. The vertical positioning device for a pile foundation reinforcement cage according to claim 3, characterized in that, The end of the pull rope is tied into the winding groove and then wound into the winding groove.

5. The vertical positioning device for a pile foundation reinforcement cage according to claim 1, characterized in that, The end of the anti-detachment screw is located on the outside of the rigid support.

6. The vertical positioning device for a pile foundation reinforcement cage according to claim 1, characterized in that, Nuts are welded to both sides of the bottom of the vertical rod, and the nuts are located on the side of the U-groove. The anti-loosening screw is threadedly connected to the nut.

7. A vertical positioning device for a pile foundation reinforcement cage according to claim 1, characterized in that, The rigid support includes two vertical rods and multiple horizontal rods arranged vertically; each horizontal rod is connected to the two vertical rods to form a staircase structure.

8. A vertical positioning device for a pile foundation reinforcement cage according to claim 7, characterized in that, The anti-floating assembly includes two sets of vertical adjustment components and a limiting plate; the two sets of vertical adjustment components are located on both sides of the horizontal bar and connected to the gantry bracket; the limiting plate abuts against the top of a horizontal bar and is detachably connected to the ends of the two sets of vertical adjustment components.

9. A vertical positioning device for a pile foundation reinforcement cage according to claim 8, characterized in that, The vertical adjustment component includes a threaded sleeve and a clamping screw; the threaded sleeve is connected to the portal frame; the clamping screw is threadedly connected to the threaded sleeve and connected to the limiting plate by bolts.

10. A vertical positioning device for a pile foundation reinforcement cage according to claim 1, characterized in that, The portal frame includes columns, beams, and a counterweight platform; the beams are connected to two columns to form a portal shape; the counterweight platform is connected to the columns and a counterweight block is placed on the counterweight platform; the beams include two spaced sub-beams, and the rigid support is located between the two sub-beams.

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