Pile foundation construction device for constructional engineering
By installing lifting lugs, setting marker lines and correctors on the casing, and combining this with cover plate locking, the problems of casing hoisting wear and inaccurate burial depth control were solved, construction safety was improved, safety hazards were reduced, and the safety of construction personnel was ensured.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SINOHYDRO BUREAU 14 CO LTD
- Filing Date
- 2025-03-19
- Publication Date
- 2026-05-15
AI Technical Summary
In the current construction of retaining piles, the steel wire ropes used for hoisting the retaining casing are severely worn, the burial depth is not accurately controlled, and the quality of safety protection devices is poor, resulting in significant safety hazards, especially the risk of falling from heights during the lowering of the steel cage.
Lifting lugs are installed on the casing to reduce wire rope wear, marking lines are set to control the burial depth, straighteners are provided to assist in the correction of the reinforcing cage, and cover plates are used to lock the casing and provide supporting protective facilities to ensure construction safety.
It effectively reduces wire rope wear, precisely controls the casing burial depth, improves construction safety, prevents personnel from falling, enhances construction protection, and improves operational safety.
Smart Images

Figure CN224243840U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of building engineering technology, and in particular to a pile foundation construction device for building engineering. Background Technology
[0002] With the development of engineering construction, the construction of retaining pile structures has become increasingly common. Most retaining pile construction uses existing ordinary casings. During hoisting, holes are drilled at the edges of the casing, resulting in rough edges and poor hole quality. This causes significant wear on the wire ropes during hoisting. Furthermore, there are no clear elevation markings on the casing, leading to uncontrollable height differences between the top and ground levels. This results in the casing failing to prevent surface water inflow and thus failing to protect the borehole opening, increase water pressure inside the borehole, or prevent collapse. When the casing is buried too deep, workers cannot effectively identify it, leading to a high risk of falls. During borehole drilling, simple protective devices are often used to cover the borehole opening, and these devices are of poor quality. Moreover, during the lowering of the reinforcing cage, truck cranes are often used, requiring workers to manually assist in lowering the cage, which greatly increases the risk of falls, causing injury or even death, posing a significant safety hazard. Utility Model Content
[0003] To address or partially address the problems existing in related technologies, this application provides a construction pile foundation construction device. This device effectively reduces the wear of the steel wire rope used for hoisting the casing during pile foundation construction, strictly controls the depth of burial and the size of the exposed ground, and is equipped with protective safety facilities during hole drilling to ensure construction safety.
[0004] The first aspect of this application provides a construction device for building pile foundations, including: a casing and a cover plate. A set of lifting lugs is installed on the top of the casing, and a marking line is set on the outer surface. At least two straighteners for straightening the reinforcing cage are hung inside the casing. The straighteners have installation grooves and the side in contact with the reinforcing cage is arc-shaped. The cover plate covers the surface of the casing and includes a crossbar and a mesh connected to the top of the crossbar.
[0005] The crossbar has U-shaped rings at both ends, and the protective sleeve has a connecting ring corresponding to the U-shaped rings. The U-shaped rings and the connecting rings are connected and locked by a protective lock.
[0006] The sleeve contains four correctors, which are arranged at a 90-degree angle.
[0007] The technical solution provided in this application may include the following beneficial effects:
[0008] This application provides a construction device for building pile foundations. The casing is welded with lifting lugs to effectively reduce the wear of the hoisting wire rope. The setting of marking lines better controls the embedment depth of the casing. The top of the casing is protected by a cover plate, which can be locked to effectively prevent construction workers from accidentally falling in. The inner wall of the casing is equipped with a detachable straightener to avoid workers having to manually adjust the axis of the steel cage. The device has strong applicability and greatly improves the safety of construction sites.
[0009] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description
[0010] The above and other objects, features and advantages of this application will become more apparent from the more detailed description of exemplary embodiments thereof in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments thereof.
[0011] Figure 1 This is a schematic diagram of the structure of the protective casing of the construction device shown in the embodiments of this application;
[0012] Figure 2 This is a schematic diagram of the structure of the cover plate of the construction device shown in the embodiments of this application;
[0013] Figure 3 This is a schematic diagram of the structure of the corrector for the cover plate shown in the embodiments of this application.
[0014] Figure 4 This is a schematic diagram showing the connection between the cover plate and the protective sleeve in an embodiment of this application.
[0015] Figure label:
[0016] In the diagram, 1—protective sleeve, 2—lifting lug, 3—corrector, 4—marker line, 5—cover plate, 51—mesh, 52—crossbar, 6—U-shaped ring, 7—connecting ring, 8—protective lock. Detailed Implementation
[0017] Embodiments of this application will now be described in more detail with reference to the accompanying drawings. While embodiments of this application are shown in the drawings, it should be understood that this application may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to make this application more thorough and complete, and to fully convey the scope of this application to those skilled in the art.
[0018] It should be understood that although the terms "first," "second," "third," etc., may be used in this application to describe various information, this information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, without departing from the scope of this application, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.
[0019] In the description of this application, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and 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.
[0020] Unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," 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. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
[0021] The technical solutions of the embodiments of this application are described in detail below with reference to the accompanying drawings.
[0022] A construction device for building pile foundations includes a casing 1 and a cover plate 5. Figure 1 As shown, lifting lugs 2 are installed at the top of the casing 1. Specifically, two lifting lugs 2 are welded on both sides of the casing 1 at an elevation of 30 cm. When the casing 1 is hoisted, the wire rope passes through the lifting lugs 2 to connect to the hoisting equipment, effectively reducing the wear of the wire rope during the hoisting of the casing 1. Marking lines 4 are set on the outer surface of the casing 1, and when the casing 1 is lowered, the casing 1 is controlled to protrude 30 cm above the ground level.
[0023] Four straighteners 3 are installed inside the casing 1, arranged in pairs at 90-degree angles to assist in correcting the axis of the steel cage during its lowering process. Figure 3As shown, the straightener 3 has an installation groove. During installation, the installation groove is inserted into the side wall of the protective sleeve 1, so that the straightener 3 is fixedly installed inside the protective sleeve 1. The side of the straightener 3 that contacts the reinforcing cage has an arc-shaped structure, which increases the contact area between the straightener 3 and the reinforcing cage, reduces the pressure per unit area, and avoids damage to the surface of the reinforcing cage.
[0024] When the reinforcing cage is lowered, the four straightening plates form a positioning frame in the horizontal and vertical directions. By contacting the outer surface of the reinforcing cage, they restrict the cage's freedom of movement in the horizontal and vertical directions. When the axis of the reinforcing cage does not coincide with the axis of the casing 1, the straightener 3 will generate uneven contact force with the outer surface of the small cylinder. This uneven contact force will cause the reinforcing cage to move towards the direction where the axes coincide, until the contact forces between each straightener 3 and the outer surface of the reinforcing cage reach relative equilibrium. At this point, the axis of the reinforcing cage is basically coincident with the axis of the casing 1, achieving axis alignment. Simultaneously, when the straightener 3 contacts the reinforcing cage, it will generate corresponding reaction forces according to the cage's offset. These reaction forces interact in the horizontal and vertical directions, forming a resultant force system. When the resultant force is zero, the reinforcing cage is in a stable equilibrium state, meaning axis alignment is complete.
[0025] like Figure 2 As shown, the cover plate 5 includes a crossbar 52 and a mesh 51 connected to the top of the crossbar 52. The cover plate 5 is used to cover the surface of the casing 1. After being connected to the casing 1 by the crossbar 52, it is locked to prevent the cover plate 5 from being moved and causing construction workers to fall in accidentally. The crossbar 52 further strengthens the load-bearing capacity of the cover plate 5, meets the construction needs of workers who sometimes stand on the cover plate 5 to work, and reduces the weight of the cover plate 5 while ensuring construction safety.
[0026] like Figure 4 As shown, U-shaped rings 6 are welded to both ends of the crossbar 52, and connecting rings 7 are welded to the outer surface of the casing 1 corresponding to the U-shaped rings 6. When the cover plate 5 is locked, the protective lock 8 passes through the U-shaped rings 6 and the connecting rings 7 and locks it. During drilling, the cover plate 5 is used to lock the casing 1, and a designated person holds the key, ensuring 100% safety during drilling. When removing the casing 1, the manhole cover 5 is removed for convenient construction and storage of the casing 1.
[0027] Finally, it should be noted that in this document, relationships such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "include," "contain," or any other variations are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.
[0028] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.
[0029] Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.
[0030] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application.
[0031] The various embodiments of this application have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or improvement of the technology in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.
Claims
1. A construction device for building pile foundations, characterized in that, include: The casing and cover plate are provided. The top of the casing is equipped with a set of lifting lugs and the outer surface is marked with marking lines. At least two straighteners for straightening the rebar cage are hung inside the casing. The straighteners are provided with mounting grooves and the side in contact with the rebar cage is arc-shaped. The cover plate covers the surface of the casing and includes a crossbar and a mesh connected to the top of the crossbar.
2. The construction device for building pile foundations according to claim 1, characterized in that, The crossbar is provided with U-shaped rings at both ends, and the protective cylinder is provided with connecting rings corresponding to the U-shaped rings. The U-shaped rings and the connecting rings are connected and locked by a protective lock.
3. The construction device for building pile foundations according to claim 1, characterized in that, The protective sleeve is equipped with four correctors, which are arranged at a 90-degree angle.