A pile foundation steel casing anti-sinking device and installation guide device
By using adjustable locking components and guiding devices, the problems of applicability and verticality of traditional anti-sinking structures are solved, enabling effective locking and vertical lowering of steel casings of different sizes and shapes.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA RAILWAY FIFTH GROUP SECOND ENGINEERING CO LTD
- Filing Date
- 2025-07-31
- Publication Date
- 2026-07-14
AI Technical Summary
Traditional anti-sinking structures cannot adapt to steel casings of different sizes and shapes, and it is difficult to guarantee the verticality of the steel casings during the lowering process.
It adopts adjustable locking components and guiding devices, taking advantage of the flexibility and adjustable length of the wire rope to adapt to steel casings of different sizes and shapes, and adjusts the position of the guide plate through the wire rope retractor to ensure verticality.
It achieves effective locking of steel casings of different sizes and shapes, ensuring the verticality and installation accuracy of the steel casings during the lowering process.
Smart Images
Figure CN224495118U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of steel casing construction technology, and in particular to a pile foundation steel casing anti-sinking device and installation guide device. Background Technology
[0002] During pile foundation construction, steel casings need to be installed after excavation. However, the soil around the outer wall of the steel casing may become loose due to excavation or construction vibrations and impacts, which can easily cause the steel casing to sink. Therefore, anti-sinking structures are usually required for the steel casing. Traditional anti-sinking structures generally use clamps to hold the steel casing tightly, placing it on the soil to restrict its movement and prevent sinking.
[0003] However, traditional anti-sinking structures are generally only applicable to one specification of steel casing, requiring completely customized manufacturing. They cannot be applied to steel casings of different sizes and shapes, necessitating the customization of a large number of anti-sinking structures of corresponding sizes and shapes for various specifications of steel casings. Furthermore, during the lowering process of the steel casing, it is difficult to ensure its verticality, and any tilting of the casing will severely affect the installation accuracy.
[0004] Therefore, there is a need for an anti-sinking device that can adapt to steel casings of different sizes and shapes, as well as an installation guide device that can ensure the verticality of the steel casing during its lowering process. Utility Model Content
[0005] Therefore, it is necessary to provide a pile foundation steel casing anti-sinking device and installation guide device, the specific technical solution of which is as follows.
[0006] A device for preventing settlement of a steel casing for a pile foundation includes two locking assemblies arranged opposite each other along the plane containing the axis of the steel casing; the locking assemblies include:
[0007] The locking body includes a backing plate, a connecting lug plate, and a stiffening plate; the backing plate abuts against the steel casing, and the side of the backing plate away from the steel casing is provided with multiple connecting posts arranged in a horizontal direction; the connecting lug plate is connected to the backing plate and extends in a direction away from the steel casing; the stiffening plate is connected to the bottom of the connecting lug plate;
[0008] The first wire rope has a rope buckle at one end, which is fastened to a connecting post, and both ends of the first wire rope are respectively connected to a locking body.
[0009] The auxiliary support includes a connecting plate and a support plate; the connecting plate is provided with a through hole for the first wire rope to pass through; the support plate is connected to the bottom of the first wire rope.
[0010] The connecting lugs on the two locking components are connected by connecting bolts, which causes the first wire rope to wrap around and lock the steel casing.
[0011] Furthermore, a clamping member is threaded onto the connecting column, and the clamping member presses the rope buckle tightly against the abutment plate.
[0012] Furthermore, square timber is placed beneath the stiffening plate.
[0013] Furthermore, an adjustable base is connected to the bottom of the support plate.
[0014] Furthermore, an anti-slip rubber pad is provided between the first wire rope and the steel casing.
[0015] Furthermore, the locking assembly includes a plurality of first steel wire ropes arranged along the axial direction of the steel casing.
[0016] An installation guide device for a steel casing for a pile foundation, comprising:
[0017] Anti-sinking device as described in any of the above;
[0018] The guiding assembly includes at least three guide plates evenly arranged around the axis of the steel casing of the pile foundation; the guide plates are connected by a second steel wire rope, which surrounds the steel casing; the guiding assembly is located above the anti-sinking device.
[0019] Vertical components are arranged in a one-to-one correspondence with the guide plates;
[0020] The adjustment assembly includes a wire rope retractor and a third wire rope; the wire rope retractor is installed on a vertical member, and one end of the third wire rope is connected to the wire rope retractor, while the other end is connected to a guide plate.
[0021] Furthermore, a support platform is installed on the vertical component; the wire rope retractor is installed on the support platform, and the support platform is provided with a guide hole, through which the third wire rope passes so that the third wire rope is horizontal from the guide hole to the guide plate.
[0022] Furthermore, the guide plate is provided with a rolling element on the side facing the steel casing.
[0023] Furthermore, multiple second steel wire ropes are wound around the outer side of the guide plate.
[0024] Beneficial effects: 1. The anti-sinking device for steel casing of pile foundation provided by this utility model can adapt to steel casings of different sizes by fastening the first steel wire rope to different connecting columns and replacing the first steel wire rope with different lengths. Furthermore, by controlling the tightening degree of the connecting bolts, further compensation is made to ensure that the anti-sinking device locks the steel casing. In addition, by utilizing the flexibility of the first steel wire rope, it can adapt to steel casings of different shapes.
[0025] 2. The installation guide device for steel casing of pile foundation provided in this embodiment, through the cooperation of various wire rope retractors, adjusts the release length of each third wire rope, thereby adjusting the horizontal position of the guide plate and adjusting the guide assembly to be coaxially arranged with the anti-sinking device, thereby ensuring the verticality of the steel casing during the lowering process. Attached Figure Description
[0026] 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.
[0027] Figure 1 A top view of the anti-sinking device;
[0028] Figure 2 An elevation view showing the steel casing being locked in place to prevent sinking;
[0029] Figure 3 A schematic diagram of the overall anti-sinking device;
[0030] Figure 4 This is a schematic diagram of the locking body;
[0031] Figure 5 This is a schematic diagram of auxiliary support;
[0032] Figure 6 This is a schematic diagram of the installation of the guide device;
[0033] Figure 7 This is a schematic diagram of the guide plate.
[0034] Explanation of reference numerals in the attached drawings: 100, anti-sinking device; 200, steel casing;
[0035] 1. Locking body; 2. First steel wire rope; 3. Auxiliary support; 4. Connecting bolts; 5. Timber; 6. Guide assembly; 7. Vertical component; 8. Adjustment assembly;
[0036] 11. Clamping plate; 12. Connecting ear plate; 13. Reinforcing plate; 14. Connecting column; 15. Clamping component;
[0037] 21. Cord buckle; 22. Anti-slip rubber mat;
[0038] 31. Connecting plate; 32. Support plate; 33. Through hole; 34. Adjustable base;
[0039] 61. Guide plate; 62. Second wire rope; 63. Rolling element;
[0040] 71. Support platform; 72. Limiting plate;
[0041] 81. Wire rope retractor; 82. Third wire rope. Detailed Implementation
[0042] 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.
[0043] 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.
[0044] 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.
[0045] 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.
[0046] 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.
[0047] 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.
[0048] Example 1
[0049] Reference Figures 1-3 As shown, this embodiment provides a device for preventing the settlement of a steel casing for a pile foundation. It includes two locking components arranged opposite each other along the plane containing the axis of the steel casing 200. The two locking components lock the steel casing 200 in place and are placed above the excavated soil to support the steel casing 200 and prevent it from settling. Each locking component includes a locking body 1, a first steel wire rope 2, an auxiliary support 3, and connecting bolts 4.
[0050] Specifically, refer to Figure 4 As shown, the locking body 1 includes a clamping plate 11, a connecting lug plate 12, and a stiffening plate 13. The clamping plate 11 abuts against the steel casing 200, and multiple connecting posts 14 arranged horizontally are provided on the side of the clamping plate 11 away from the steel casing 200. These connecting posts 14 can be on the same horizontal plane or on different horizontal planes to be staggered. The connecting lug plate 12 is connected to the clamping plate 11 and extends in a direction away from the steel casing 200. The stiffening plate 13 is connected to the bottom of the connecting lug plate 12. The stiffening plate 13 is placed on the timber 5 or directly on the soil to support the locking body 1. The size of the timber 5 can be selected according to the site construction conditions, or no timber 5 can be placed.
[0051] Specifically, the first wire rope 2 has a buckle 21 at its end, which is fastened to a connecting post 14, and locking bodies 1 are connected to both ends of the first wire rope 2. The connecting lugs 12 on the two locking components are connected by connecting bolts 4, so that the first wire rope 2 wraps around and locks the steel casing 200. When the buckle 21 of the first wire rope 2 is fastened to different connecting posts 14, the effective contact length between the first wire rope 2 and the steel casing 200 is different, thus allowing it to wrap around steel casings 200 of different diameters and sizes. It should be noted that when the sizes of different steel casings 200 differ significantly, and simply changing the fastening connecting post 14 cannot adapt to the size of the steel casing 200, the first wire rope 2 of different lengths can also be replaced. By controlling the tightening degree of the connecting bolts 4, the size of the steel casing 200 can be further adapted, ensuring that the anti-sinking device 100 locks the steel casing 200.
[0052] Specifically, the auxiliary support 3 includes a connecting plate 31 and a support plate 32; the connecting plate 31 has a through hole 33 for the first wire rope 2 to pass through; the support plate 32 is connected to the bottom of the first wire rope 2. The auxiliary support 3 improves the support effect on the steel casing 200, as shown in the reference... Figure 5 As shown, an adjustable base plate 34 can be connected to the bottom of the support plate 32 according to the on-site construction conditions, so as to facilitate height adjustment and adapt to the height of the soil. The adjustable base plate 34 includes a threaded rod and a threaded sleeve, and the height can be adjusted by rotating the threaded rod and the threaded sleeve relative to each other.
[0053] The anti-sinking device for steel casing of pile foundation provided in this embodiment can adapt to steel casings 200 of different sizes by attaching the first wire rope 2 to different connecting columns 14 and replacing the first wire rope 2 with different lengths. Furthermore, by controlling the tightening degree of the connecting bolts 4, further compensation is made to ensure that the anti-sinking device 100 locks the steel casing 200. In addition, by utilizing the flexibility of the first wire rope 2, it can adapt to steel casings 200 with different shapes.
[0054] Specifically, refer to Figure 4 As shown, a clamping member 15 is threaded onto the connecting post 14. The clamping member 15 presses the rope buckle 21 against the abutment plate 11 to prevent the rope buckle 21 from separating from the connecting post 14.
[0055] Specifically, an anti-slip rubber pad 22 is provided between the first wire rope 2 and the steel casing 200. By setting the anti-slip rubber pad 22, relative movement between the steel casing 200 and the first wire rope 2 is prevented, ensuring stable support for the steel casing 200.
[0056] Specifically, the locking assembly includes multiple first steel wire ropes 2 arranged along the axial direction of the steel casing 200, and the support effect of the steel casing 200 is ensured by setting multiple steel wire ropes.
[0057] Example 2
[0058] Reference Figure 6 and Figure 7 As shown, this embodiment provides an installation guide device for a pile foundation steel casing, including an anti-sinking device 100, a guide assembly 6, a vertical component 7, and an adjustment assembly 8 as described in Embodiment 1. The guide assembly 6 includes four guide plates 61 evenly arranged around the axis of the pile foundation steel casing 200. In other embodiments, three or more guide plates 61 may also be provided. The four guide plates 61 are connected by a second steel wire rope 62, which surrounds the steel casing 200 to limit the position of the steel casing 200. The guide assembly 6 is located above the anti-sinking device 100. The steel casing 200 is limited above by the guide assembly 6 and below by the anti-sinking device 100, effectively positioning the steel casing 200 during its lowering.
[0059] Specifically, the vertical components 7 are arranged in a one-to-one correspondence with the guide plates 61. In this embodiment, a total of four vertical components 7 are arranged, and each vertical component 7 is equipped with an adjustment component 8. It should be noted that, for ease of display, in Figure 6 The vertical component 7 located directly in front is concealed within. The adjusting assembly 8 includes a wire rope retractor 81 and a third wire rope 82; the wire rope retractor 81 is mounted on the vertical component 7, and one end of the third wire rope 82 is connected to the wire rope retractor 81, while the other end is connected to the guide plate 61. The release length of the third wire rope 82 is adjusted by the wire rope retractor 81, thereby adjusting the horizontal position of the guide assembly 6, ensuring that the guide assembly 6 is coaxially arranged with the anti-sinking device 100, and guaranteeing the verticality of the steel casing 200 during its lowering process. In this embodiment, the wire rope retractor 81 can be a winch.
[0060] The installation guide device for the steel casing of the pile foundation provided in this embodiment can adjust the horizontal position of the guide plate 61 by cooperating with each wire rope retractor 81 and adjusting the release length of each third wire rope 82. This allows the guide assembly 6 to be adjusted to be coaxially arranged with the anti-sinking device 100, thereby ensuring the verticality of the steel casing 200 during the lowering process.
[0061] Specifically, a support platform 71 is mounted on the vertical component 7; the wire rope retractor 81 is mounted on the support platform 71, and a limiting plate 72 is provided on the support platform 71. A guide hole is provided on the limiting plate 72, through which the third wire rope 82 passes, making the third wire rope 82 horizontal from the guide hole to the guide plate 61. The guide hole restricts the third wire rope 82 to a horizontal state, facilitating accurate adjustment of the horizontal position of the guide assembly 6 when retracting or extending the third wire rope 82.
[0062] Specifically, refer to Figure 7 As shown, the guide plate 61 has a rolling element 63 on the side facing the steel casing 200. This facilitates the movement of the steel casing 200 relative to the guide assembly 6 during lowering.
[0063] Specifically, multiple second steel wire ropes 62 are wound around the outside of the guide plate 61 to ensure precise positioning of the guide plate 61.
[0064] Construction process of lowering the 200mm steel casing:
[0065] The steel casing 200 is hoisted into the hole, and an anti-sinking device 100 is installed on the outside of the steel casing 200. At this time, no rubber anti-slip pad is placed, and the connecting bolts 4 are not fully tightened to limit the movement of the steel casing 200. When the steel casing 200 can move relative to the anti-sinking device 100.
[0066] Install the guide assembly 6 so that the second wire rope 62 passes around the outside of each guide plate 61 in sequence and connects to the guide plate 61, so that the guide assembly 6 surrounds the steel casing 200; connect the third wire rope 82 to the guide plate 61, and use the wire rope retractor 81 to adjust the release length of each third wire rope 82, thereby adjusting the position of the guide assembly 6, so that the guide assembly 6 is coaxially arranged with the anti-sinking device 100, thereby ensuring the verticality of the steel casing 200 during the lowering process.
[0067] After the steel casing 200 is lowered, an anti-slip rubber pad 22 is inserted between the first wire rope 2 and the steel casing 200, and the connecting bolts 4 are fully tightened so that the anti-sinking device 100 locks the steel casing 200.
[0068] 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.
[0069] 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 device for preventing settlement of steel casing for pile foundations, characterized in that, It includes two locking assemblies arranged opposite each other along the plane containing the axis of the steel casing; the locking assembly includes: The locking body includes a backing plate, a connecting lug plate, and a stiffening plate; the backing plate abuts against the steel casing, and the side of the backing plate away from the steel casing is provided with multiple connecting posts arranged in a horizontal direction; the connecting lug plate is connected to the backing plate and extends in a direction away from the steel casing; the stiffening plate is connected to the bottom of the connecting lug plate; The first wire rope has a rope buckle at one end, which is fastened to a connecting post, and both ends of the first wire rope are respectively connected to a locking body. The auxiliary support includes a connecting plate and a support plate; the connecting plate is provided with a through hole for the first wire rope to pass through; the support plate is connected to the bottom of the first wire rope. The connecting lugs on the two locking components are connected by connecting bolts, which causes the first wire rope to wrap around and lock the steel casing.
2. The anti-sinking device for steel casing of pile foundation according to claim 1, characterized in that, A clamping element is threaded onto the connecting column, and the clamping element presses the rope buckle tightly against the abutment plate.
3. The anti-sinking device for steel casing of pile foundation according to claim 1, characterized in that, A square timber is placed underneath the stiffening plate.
4. The anti-sinking device for steel casing of pile foundation according to claim 1, characterized in that, The bottom of the support plate is connected to an adjustable base.
5. The anti-sinking device for steel casing of pile foundation according to claim 1, characterized in that, An anti-slip rubber pad is provided between the first wire rope and the steel casing.
6. The anti-sinking device for steel casing of pile foundation according to claim 1, characterized in that, The locking assembly includes multiple first steel wire ropes arranged along the axial direction of the steel casing.
7. An installation guide device for a steel casing for pile foundations, characterized in that, include: The anti-sinking device as described in any one of claims 1 to 6; The guiding assembly includes at least three guide plates evenly arranged around the axis of the steel casing of the pile foundation; the guide plates are connected by a second steel wire rope, which surrounds the steel casing; the guiding assembly is located above the anti-sinking device. Vertical components are arranged in a one-to-one correspondence with the guide plates; The adjustment assembly includes a wire rope retractor and a third wire rope; the wire rope retractor is installed on a vertical member, and one end of the third wire rope is connected to the wire rope retractor, while the other end is connected to a guide plate.
8. The installation guide device for a steel casing for a pile foundation according to claim 7, characterized in that, A support platform is installed on the vertical component; the wire rope retractor is installed on the support platform, and the support platform is provided with a guide hole. The third wire rope passes through the guide hole so that the third wire rope is horizontal from the guide hole to the guide plate.
9. The installation guide device for a steel casing for a pile foundation according to claim 7, characterized in that, The guide plate has rolling elements on the side facing the steel casing.
10. The installation guide device for a steel casing for a pile foundation according to claim 7, characterized in that, Multiple second steel wire ropes are wound around the outside of the guide plate.