Extruded branch pile

Abstract

The utility model relates to a squeezing and expanding branch pile which comprises a pile foundation hole, a reinforcement cage and a vertically-arranged driving rod, the driving rod is located on the inner side of a vertical reinforcement, the driving rod is in running fit with the upper end of the reinforcement cage, an upper side nut and a lower side nut are connected to the driving rod in a threaded mode, and the thread turning directions of the upper side nut and the lower side nut are opposite. A connecting rod mechanism corresponding to the position of the annular groove of the supporting disc is arranged between the upper side nut and the lower side nut and comprises an upper side connecting rod and a lower side connecting rod, the adjacent ends of the upper side connecting rod and the lower side connecting rod are hinged, the upper side connecting rod and the lower side connecting rod are metal connecting rods, the upper side connecting rod is hinged to the upper side nut, and the lower side connecting rod is hinged to the lower side nut. The connecting rod mechanism is located between the two corresponding adjacent vertical steel bars so as to limit rotation of the upper side nut and the lower side nut when the driving rod rotates, and the two adjacent vertical steel bars are called the first vertical steel bar and the second vertical steel bar. The utility model provides a squeezing and expanding branch pile capable of adding a metal support to a branch part.

Description

Technical Field

[0001] The utility model relates to the technical field of pile foundation construction, in particular to an extruded branch pile. Background Art

[0002] Conventional pile foundation construction is to first drill a pile foundation hole on the foundation, then place a steel cage in the pile foundation hole, and then pour concrete into the pile foundation hole. The concrete consolidates the steel cage and the wall of the pile foundation hole into an integral structure.

[0003] In order to improve the pull-out resistance between concrete and pile foundation hole and the anti-tilt ability of pile foundation, the construction of extruded branch plate piles is increasingly accepted by people. The construction of extruded branch plate piles refers to the use of hydraulic extrusion equipment to extrude a branch plate annular groove on the hole wall of the pile foundation hole at the branch plate position. In this way, when pouring concrete, the concrete will fill the entire branch plate annular groove and eventually solidify into an annular protrusion. The stop effect between the annular protrusion and the foundation can improve the pull-out resistance between the pile foundation and the foundation.

[0004] However, the existing technology has the following problems: in the current branch plate pile design, no steel bars are set at the branch plate part, i.e. the annular groove position, but are filled with plain concrete, resulting in the strength of the branch plate part not being consistent with the strength of the pile body, and the bearing strength of the branch plate pile cannot be guaranteed. Utility Model Content

[0005] The utility model aims to provide an extruded branch plate pile which can increase metal support on the branch plate part.

[0006] In order to solve the above technical problems, a technical solution of an extruded branch pile in the utility model is as follows:

[0007] The cam is provided with a plurality of vertical reinforcement bars, the plurality of vertical reinforcement bars being provided with a plurality of vertical reinforcement bars in a circumferential direction, the plurality of vertical reinforcement bars being provided with a plurality of vertical reinforcement bars in a circumferential direction, the plurality of vertical reinforcement bars being provided with a plurality of vertical reinforcement bars in a circumferential direction, the plurality of vertical reinforcement bars being provided with a plurality of vertical reinforcement bars in a circumferential direction, the plurality of vertical reinforcement bars being provided with a plurality of vertical reinforcement bars in a circumferential direction, the plurality of vertical reinforcement bars being provided with a plurality of vertical reinforcement bars in a circumferential direction, the plurality of vertical reinforcement bars being provided with a plurality of vertical reinforcement bars in a circumferential direction, the plurality of vertical reinforcement bars being provided with a plurality of vertical reinforcement bars in a circumferential direction, the plurality of vertical reinforcement bars being provided with a plurality of vertical reinforcement bars in a circumferential direction, the plurality of

[0008] Furthermore, there are four driving rods, which are evenly spaced apart along the circumference of the steel cage.

[0009] Furthermore, when the upper nut and the lower nut move relative to each other, the connecting ends of the upper connecting rod and the lower connecting rod move outward into the annular groove of the support plate; when the upper connecting rod and the lower connecting rod move backwards, the connecting ends of the upper connecting rod and the lower connecting rod retract inward to between the corresponding first vertical steel bar and the second vertical steel bar.

[0010] Furthermore, mounting blocks are fixed to the upper ends of the first vertical steel bars and the second vertical steel bars, and the upper end of the driving rod is rotatably matched with the mounting blocks.

[0011] Furthermore, an upper hinge seat is arranged on the upper nut, a lower hinge seat is arranged on the lower nut, the upper connecting rod is hingedly connected to the upper hinge seat, and the lower connecting rod is hingedly connected to the lower hinge seat.

[0012] Furthermore, the upper hinged seat is located on a side close to the first vertical steel bar, and the lower hinged seat is located on a side close to the second vertical steel bar.

[0013] The beneficial effects of the utility model are as follows: when in use, the corresponding upper nut and lower nut are made to move oppositely by rotating the driving rod, so that the adjacent ends of the upper connecting rod and the lower connecting rod can move away from the wall of the pile foundation hole, that is, towards the axis of the steel cage, thereby reducing the overall radial size of the steel cage and smoothly lowering the steel cage into the pile foundation hole. After the steel cage is lowered into the pile foundation hole, the driving rod is rotated in the opposite direction to make the corresponding upper nut and lower nut move relatively, so that the adjacent ends of the upper connecting rod and the lower connecting rod can move outward and extend into the corresponding annular groove of the support plate, and then concrete is poured into the pile foundation hole, and the upper connecting rod and the lower connecting rod become metal supports for the concrete in the annular groove of the support plate, thereby ensuring the structural strength of the support plate part. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] By reading the following detailed description with reference to the accompanying drawings, the above and other objects, features and advantages of the exemplary embodiments of the present disclosure will become readily understood. In the accompanying drawings, several embodiments of the present disclosure are shown in an exemplary and non-limiting manner, and the same or corresponding reference numerals represent the same or corresponding parts, wherein:

[0015] Figure 1 It is a structural schematic diagram of an embodiment of the utility model;

[0016] Figure 2 yes Figure 1 Schematic diagram of the structure of the steel cage;

[0017] Figure 3 yes Figure 2 A side view of the middle link mechanism cooperating with the first vertical steel bar and the second vertical steel bar;

[0018] Explanation of the reference numerals in the accompanying drawings: 1. foundation; 2. pile foundation hole; 3. support plate annular groove; 4. driving rod; 5. upper nut; 6. connecting rod mechanism; 7. lower nut; 8. steel cage; 9. mounting block; 10. vertical steel bars; 11. annular steel bars; 12. upper hinged seat; 13. lower hinged seat; 14. first vertical steel bars; 15. second vertical steel bars; 16. upper connecting rod; 17. lower connecting rod. DETAILED DESCRIPTION

[0019] In order to facilitate the understanding of the present invention, the present invention is described in more detail below in conjunction with the accompanying drawings and specific embodiments. The accompanying drawings provide preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described in this specification. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0020] It should be noted that, unless otherwise defined, all technical and scientific terms used in this specification have the same meanings as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0021] The utility model is a kind of extruded branch pile, for example Figures 1 to 3 As shown: it includes a foundation 1 with a pile foundation hole, a steel frame cage 8 is arranged in the pile foundation hole, a support plate annular groove 3 is arranged on the hole wall of the pile foundation hole, the steel cage includes a plurality of vertical steel bars 10 arranged in sequence along the circumferential direction, and the steel cage also includes a plurality of annular steel bars 11 arranged at intervals along the up and down directions, and the annular steel bars 11 are fixed to the outer periphery of the vertical steel bars 10 by tying wires.

[0022] The squeezed branch plate pile also includes four driving rods 4 evenly spaced along the circumference. The driving rods 4 are vertically arranged and located on the inner side of a circle of vertical steel bars. Each driving rod 4 corresponds to two adjacent vertical steel bars. The two adjacent vertical steel bars are called the first vertical steel bar 14 and the second vertical steel bar 15. The upper ends of the first vertical steel bar 14 and the second vertical steel bar 15 are fixed with mounting blocks 9. The upper ends of the driving rods 4 are rotatably matched with the mounting blocks 9. The upper ends of the driving rods 4 pass through the upper side of the mounting blocks for torque input.

[0023] An upper nut 5 and a lower nut 7 are threadedly connected on each driving rod, and the threads of the upper nut 5 and the lower nut 7 are in opposite directions. A connecting rod mechanism corresponding to the position of the annular groove of the support plate is arranged between the upper nut and the lower nut, and the connecting rod mechanism includes an upper connecting rod 16 and a lower connecting rod 17 hingedly connected at adjacent ends. The upper connecting rod 16 and the lower connecting rod 17 are metal connecting rods. In the circumferential direction of the steel cage, the upper connecting rod and the lower connecting rod are located between the first vertical steel bar 14 and the second vertical steel bar 16. The upper connecting rod 16 is hingedly connected to the upper nut 5, and the lower connecting rod 17 is hingedly connected to the lower nut 7. The connecting rod mechanism is located between the first vertical steel bar and the second vertical steel bar to limit the rotation of the upper nut and the lower nut when the driving rod rotates.

[0024] When the upper nut and the lower nut move relative to each other, the connecting ends of the upper connecting rod and the lower connecting rod move outward into the annular groove of the support plate; when the upper connecting rod and the lower connecting rod move backward, the connecting ends of the upper connecting rod and the lower connecting rod retract inward to between the corresponding first vertical steel bar and the second vertical steel bar.

[0025] An upper hinge seat 12 is provided on the upper nut, a lower hinge seat 13 is provided on the lower nut, an upper connecting rod 16 is hingedly connected to the upper hinge seat 12, a lower connecting rod 17 is hingedly connected to the lower hinge seat 13, the upper hinge seat and the lower hinge seat are located between the first vertical steel bar and the second vertical steel bar, the upper hinge seat is located on the side close to the first vertical steel bar, and the lower hinge seat is located on the side close to the second vertical steel bar. In this way, no matter whether the driving rod rotates forward or reverse, the connecting rod mechanism will not have a large degree of rotational freedom, and the corresponding hinge seat will quickly cooperate with the corresponding vertical steel bar in the circumferential direction to limit the rotation of the upper nut and the lower nut, and ensure that the upper nut and the lower nut move linearly in the up and down directions.

[0026] When in use, when lowering the steel cage, the driving rod can be rotated first to make the upper nut and the lower nut move in opposite directions, so that the connecting ends of the upper connecting rod and the lower connecting rod move toward the axis direction of the steel cage, reducing the overall radial size of the steel cage, so that the steel cage can be smoothly lowered into the pile foundation hole. After the steel cage is lowered into the pile foundation hole, the height of the connecting rod mechanism corresponds to the annular groove of the support plate, the driving rod is rotated in the opposite direction, the upper nut and the lower nut move relatively, and the connecting ends of the upper connecting rod and the lower connecting rod move toward the annular groove of the support plate and extend into the annular groove of the support plate, and then concrete can be poured into the steel cage and the pile foundation hole normally.

[0027] In the above description of this specification, unless otherwise clearly specified and limited, the terms "fixed", "installed", "connected" or "connected" should be understood in a broad sense. For example, with regard to the term "connection", it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal connection of two elements or the interaction relationship between two elements. Therefore, unless otherwise clearly defined in this specification, those skilled in the art can understand the specific meanings of the above terms in this utility model according to the specific circumstances.

[0028] According to the above description of this specification, those skilled in the art may also understand that the terms used below, such as "up", "down", "front", "back", "left", "right", "length", "width", "thickness", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", "center", "longitudinal", "lateral", "clockwise" or "counterclockwise", etc., which indicate the orientation or position relationship, are based on the orientation or position relationship shown in the drawings of this specification, and are only for the purpose of facilitating the explanation of the scheme of the utility model and simplifying the description, rather than explicitly or implicitly indicating that the device or element involved must have the specific orientation, be constructed and operate in a specific orientation. Therefore, the above-mentioned orientation or position relationship terms cannot be understood or interpreted as limitations on the scheme of the utility model.

[0029] In addition, the terms "first" or "second" used in this specification to refer to numbers or ordinals are only used for descriptive purposes and cannot be understood as explicitly or implicitly indicating relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this specification, the meaning of "plurality" is at least two, such as two, three or more, etc., unless otherwise clearly and specifically defined.

[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. An extruded branch pile, comprising a foundation with a pile foundation hole, a steel cage is arranged in the pile foundation hole, a branch plate annular groove is arranged on the hole wall of the pile foundation hole, the steel cage comprises a plurality of vertical steel bars arranged in sequence along the circumferential direction, characterized in that: The squeezed branch plate pile also includes at least three driving rods arranged at intervals along the circumference. The driving rod is arranged vertically and located on the inner side of the vertical steel bar. The driving rod is rotatably matched with the upper end of the steel cage. An upper nut and a lower nut are threadedly connected on the driving rod. The thread rotation directions of the upper nut and the lower nut are opposite. A connecting rod mechanism corresponding to the position of the annular groove of the branch plate is arranged between the upper nut and the lower nut. The connecting rod mechanism includes an upper connecting rod and a lower connecting rod hingedly connected to adjacent ends. The upper connecting rod and the lower connecting rod are metal connecting rods. The upper connecting rod is hingedly connected to the upper nut, and the lower connecting rod is hingedly connected to the lower nut. The connecting rod mechanism is located between the corresponding two adjacent vertical steel bars to limit the rotation of the upper nut and the lower nut when the driving rod rotates. The two adjacent vertical steel bars are called the first vertical steel bar and the second vertical steel bar.

2. The squeezed and expanded branch pile according to claim 1, characterized in that: There are four driving rods, and the four driving rods are evenly spaced along the circumference of the steel cage.

3. The squeezed and expanded branch pile according to claim 1, characterized in that: When the upper nut and the lower nut move relative to each other, the connecting ends of the upper connecting rod and the lower connecting rod move outward into the annular groove of the support plate; when the upper connecting rod and the lower connecting rod move backward, the connecting ends of the upper connecting rod and the lower connecting rod retract inward to between the corresponding first vertical steel bar and the second vertical steel bar.

4. The squeezed and expanded branch pile according to claim 1, characterized in that: The upper ends of the first vertical steel bar and the second vertical steel bar are fixed with mounting blocks, and the upper end of the driving rod is rotatably matched with the mounting block.

5. The squeezed and expanded branch pile according to any one of claims 1 to 4, characterized in that: An upper hinge seat is arranged on the upper nut, a lower hinge seat is arranged on the lower nut, an upper connecting rod is hingedly connected to the upper hinge seat, and a lower connecting rod is hingedly connected to the lower hinge seat.

6. The squeezed and expanded branch pile according to claim 5, characterized in that: The upper hinged seat is located on a side close to the first vertical steel bar, and the lower hinged seat is located on a side close to the second vertical steel bar.

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