Composite pile for constructional engineering

Abstract

The utility model provides a composite pile for constructional engineering, which comprises screw rods, hinge rods, a pile body and limiting insertion cones, a plurality of limiting insertion cones are radially sleeved on the inner circumference of the pile body in a sliding manner, the screw rods are axially arranged on the inner circumference of the pile body, one end of each limiting insertion cone is detachably connected with one end of each hinge rod, and the other end of each hinge rod is sleeved on the outer circumference of each screw rod in a sliding manner. The limiting cone bodies can be inserted into the wall of a pile hole at the same time through rotation of the lead screw, the horizontal stress of the combined pile is improved, the combined pile is prevented from sinking, the structure is simple, operation is easy and convenient, and construction efficiency is high.

Description

Technical Field

[0001] The utility model belongs to the technical field of combined piles, and in particular relates to a combined pile for construction engineering. Background Art

[0002] Before constructing a building on the surface, composite piles are often driven into the foundation to provide bearing capacity to support the weight of the upper building. However, the soil under the foundation of some composite piles is very poor and cannot reach the corresponding bearing capacity to support the weight of the upper building. In this case, one end of the composite pile is connected to the building, and the other end is connected to good soil or rock deep inside to jointly support the entire building.

[0003] However, the composite piles inserted into the ground are prone to sinking due to the lack of force in the horizontal direction, and have poor stability, which can easily cause the ground buildings to collapse and reduce the stability of the ground buildings. Therefore, a new type of composite pile structure is needed to improve the above problems. Utility Model Content

[0004] In view of the above problems, the purpose of the utility model is to provide a composite pile for construction engineering, which drives the hinge rod through the screw rod to push the limiting cone and simultaneously extends it out to insert into the pile hole wall to prevent the pile body from sinking.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A composite pile for construction engineering comprises a screw rod, a hinge rod, a pile body and a limit cone, wherein a plurality of the limit cones are radially and slidably sleeved on the inner circumference of the pile body, the screw rod is axially arranged on the inner circumference of the pile body, one end of each of the limit cones is detachably connected to one end of the hinge rod, and the other end of each of the hinge rods is slidably sleeved on the outer circumference of the screw rod, and the screw rod is used to rotate and drive the limit cones to extend out of the outer circumference of the pile body.

[0007] Furthermore, a plurality of nuts are provided at intervals on the outer periphery of the screw rod, and the outer periphery of each nut is hinged to the other end of the corresponding hinge rod, and one end of each hinge rod is hinged to have a connecting mechanism, and the connecting mechanism is detachably connected to the limiting insert cone.

[0008] Furthermore, a sleeve is slidably sleeved on the outer circumference of each of the limiting inserting cones, and one end of the sleeve is fixed on the inner circumferential surface of the pile body.

[0009] Furthermore, the connecting mechanism includes a spring, a concave block, a J-shaped rod and a triangular block. A slide groove is provided inside the upper end of the concave block. The triangular block is slidably embedded in the slide groove. The spring is embedded at the bottom of the slide groove to resist the triangular block. One end of the J-shaped rod is connected to the triangular block, and the other end of the J-shaped rod is located in the groove of the concave block and movably connected to one end of the limiting cone.

[0010] Furthermore, a stopper for squeezing the triangular block to separate the J-shaped rod from the limiting insert cone is fixed to the other end of the sleeve.

[0011] Furthermore, a through hole which penetrates the sleeve and is used to limit the limiting cone from extending out of the pile body is provided in the radial direction of the pile body.

[0012] Furthermore, the outer periphery of the limiting inserting cone is provided with barbs for limiting its extension into the inner periphery of the pile body.

[0013] Furthermore, a mounting hole is provided at one end of the limiting insert cone, and the other end of the J-shaped rod is movably inserted into the mounting hole.

[0014] Furthermore, the upper end of the screw rod is sleeved with a pulley driven to rotate by a motor.

[0015] The utility model adopts the above technical solution, which has the following advantages and effects:

[0016] The utility model provides a composite pile for construction engineering, wherein a screw rod is axially arranged in the pile body, a limiting vertebra is radially slidably sleeved on the inner circumference, the limiting vertebra is slidably sleeved with the screw rod through a hinge rod, the screw rod rotates to drive one end of the hinge rod to move downward, and pushes multiple limiting vertebrae to be extended and inserted into the pile hole wall at the same time to prevent sinking, and one end of the hinge rod is detachably connected to the hinge rod, when the limiting vertebra is inserted into the pile hole wall, the hinge rod can automatically detach from the limiting vertebra, at this time the screw rod and the hinge rod can be directly taken out and recycled, the utility model can simultaneously insert all the limiting vertebrae into the pile hole wall through the rotation of the screw rod, thereby improving the horizontal force of the composite pile, effectively preventing the composite pile from sinking, and has a simple structure, easy operation and high construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0018] Figure 2 It is a cross-sectional structural schematic diagram of the utility model.

[0019] Figure 3 for Figure 2 Schematic diagram of the enlarged structure of part A.

[0020] Figure 4 It is an enlarged structural diagram of the connection mechanism of the utility model.

[0021] The accompanying drawings are marked as follows: 1-pulley; 2-screw rod; 3-nut; 4-hinge rod; 5-pile body; 6-through hole; 7-sleeve; 8-stop block; 9-limiting vertebral body; 901-barb; 10-connecting mechanism; 101-triangular block; 102-spring; 103-concave block; 104-slide groove; 105-J-shaped rod. DETAILED DESCRIPTION

[0022] The following will be combined with the accompanying drawings to describe the embodiments of the present invention in detail, so as to more clearly understand the purpose, characteristics and advantages of the present invention. It should be understood that the embodiments shown in the accompanying drawings are not intended to limit the scope of the present invention, but are only intended to illustrate the essential spirit of the technical solution of the present invention.

[0023] like Figure 1-Figure 3 The utility model provides a composite pile for construction engineering, comprising a screw rod 2, a hinge rod 4, a pile body 5 and a limit cone 9, a plurality of limit cones 9 are radially and slidably sleeved on the inner periphery of the pile body 5, a screw rod 2 is axially arranged on the inner periphery of the pile body 5, one end of each limit cone 9 is detachably connected to one end of the hinge rod 4, and the other end of each hinge rod 4 is slidably sleeved on the outer periphery of the screw rod 2, and the screw rod 2 is used to rotate and drive the limit cone 9 to extend out of the outer periphery of the pile body 5.

[0024] Specifically, the pile body 5 is a cylindrical structure with a cone at the bottom. The upper end of the pile body 5 is open. Several layers of limiting cones 9 are arranged in sequence along the axial direction on the inner circumference of the pile body 5. The limiting cones 9 of each layer are radially distributed around the circumference. The screw rod 2 is axially arranged on the axis of the pile body 5. One end of each limiting cone 9 of each layer is hinged to one end of a hinge rod 4. The hinge rod 4 and the limiting cone 9 of each layer are spaced up and down. The upper end of the screw rod 2 extending out of the pile body 5 is sleeved with a pulley 1, which is connected to the motor through a belt. The motor drives the pulley 1 to drive the screw rod 2 to rotate. The screw rod 2 pushes the limiting cone 9 through the hinge rod 4 to extend out of the outer circumference of the pile body 5 and insert it into the pile hole wall.

[0025] Furthermore, a plurality of nuts 3 are provided at intervals on the outer periphery of the screw rod 2. The outer periphery of each nut 3 is hinged to the other end of the corresponding hinge rod 4. One end of each hinge rod 4 is hinged with a connecting mechanism 10, and the connecting mechanism 10 is detachably connected to the limiting cone 9.

[0026] Specifically, the nuts 3 are sequentially arranged at intervals in the axial direction on the outer periphery of the screw rod 2 and are threadedly connected thereto, and the other end of the hinge rod 4 of each layer is hinged to the outer periphery of the nut 3 of that layer, and the height of the nut 3 of each layer is higher than the height of the limiting plug cone 9 of each layer. One end of each hinge rod 4 of each layer is hinged to a connecting mechanism 10 which is detachably connected to the corresponding limiting plug cone 9 of that layer.

[0027] Furthermore, a sleeve 7 is slidably sleeved on the outer periphery of each limiting cone 9 , and the sleeve 7 is used to axially limit the limiting cone 9 on its inner periphery. The limiting cone 9 moves axially along the sleeve 7 , and one end of the sleeve 7 is fixed on the inner peripheral surface of the pile body 5 .

[0028] like Figure 4Further, the connection mechanism 10 includes a spring 102, a concave block 103, a J-shaped rod 105 and a triangular block 101. A slide groove 104 is provided inside the upper end of the concave block 103. The triangular block 101 is slidably embedded in the slide groove 104. The bottom of the slide groove 104 is embedded with a spring 102 that resists the lower end of the triangular block 101. One end of the J-shaped rod 105 is connected to the triangular block 101. The other end of the J-shaped rod 105 is located in the groove of the concave block 103 and is movably connected to one end of the limiting plug cone 9.

[0029] Specifically, a groove is provided at one end of the concave block 103, and a hinge ring is provided at the other end, and the other end of the hinge rod 4 is movably connected to the hinge ring through a pin. One end of the limiting plug cone 9 is embedded in the groove and connected to the lower end of the J-shaped rod 105, and the upper end of the J-shaped rod 105 is fixedly connected to the triangular block 101, and the lower end of the J-shaped rod 105 is correspondingly arranged on the inner side of the groove of the concave block 103. When the triangular block 101 contacts the end surface of the sleeve 7, it is squeezed into the inside of the slide groove 104, thereby driving the lower end of the J-shaped rod 105 to detach from the lower end of the limiting plug cone 9, and at this time, the screw rod 2 and the connecting mechanism 10 on its surface can be directly taken out and recycled.

[0030] Furthermore, in order to facilitate the extrusion of the triangular block 101, the upper end surface of the triangular block 101 has a first inclined surface, and the other end of the sleeve 7 is fixed with a stopper 8 for extruding the triangular block 101 to make the J-shaped rod 105 disengage from the limiting insert cone 9. The lower part of the outer end of the stopper 8 has a second inclined surface that matches the first inclined surface of the triangular block 101. When the triangular block 101 moves axially, the second inclined surface gradually fits with the first inclined surface and then squeezes the first inclined surface to make the triangular block 101 move downward and squeeze the J-shaped rod 105 downward, and the lower end of the J-shaped rod 105 disengages from the limiting insert cone 9.

[0031] Furthermore, the pile body 5 is provided with through holes 6 in the radial direction for the limiting cone 9 to extend out of its outer periphery, and each through hole 6 is connected with a corresponding sleeve 7. The limiting cone 9 passes through the sleeve 7 and the through hole 6 in sequence and is inserted into the pile hole wall.

[0032] Furthermore, in order to prevent the limiting cone 9 from retreating after being inserted into the pile hole wall, the outer circumference of the limiting cone 9 is provided with barbs 901 for limiting its extension into the inner circumference of the pile body 5, and the barbs 901 are distributed in a circular array on the outer circumference of the limiting cone 9.

[0033] Furthermore, one end of the limiting plug cone 9 is provided with a mounting hole adapted to the other end of the J-shaped rod 105, and the other end of the J-shaped rod 105 is movably inserted in the mounting hole. The mounting hole is arranged at the lower end of the limiting plug cone and the clearance of the lower end of the J-shaped rod 105 facilitates the J-shaped rod 105 to detach from the limiting plug cone 9.

[0034] The utility model provides a combined pile for construction engineering. When in use, the pulley 1 is driven to rotate by the motor, thereby driving the screw rod 2 to rotate. The screw rod 2 drives the nut 3 of each layer to move axially downward. The nut 3 pushes the limiting cone 9 through the hinge rod 4 to extend from the through hole 6 and insert into the pile hole wall until the triangular block 101 contacts the stop block 8 and is squeezed into the slide groove 104, so that the triangular block 101 presses the J-shaped rod 105 downward to make the J-shaped rod 105 disengage from the limiting cone 9. At this time, the screw rod 2 and the hinge rod 4 and the connecting mechanism 10 connected thereto can be directly taken out and recycled.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A composite pile for construction engineering, characterized in that: The invention comprises a screw rod (2), a hinge rod (4), a pile body (5) and a limit insert cone (9); a plurality of the limit insert cones (9) are radially and slidably sleeved on the inner circumference of the pile body (5); the screw rod (2) is axially arranged on the inner circumference of the pile body (5); one end of each of the limit insert cones (9) is detachably connected to one end of the hinge rod (4); the other end of each of the hinge rods (4) is slidably sleeved on the outer circumference of the screw rod (2); the screw rod (2) is used to rotate and drive the limit insert cone (9) to extend out of the outer circumference of the pile body (5).

2. A composite pile for construction engineering according to claim 1, characterized in that: The outer periphery of the screw rod (2) is provided with a plurality of nuts (3) at intervals, the outer periphery of each nut (3) is hinged to the other end of the corresponding hinge rod (4), one end of each hinge rod (4) is hinged with a connecting mechanism (10), and the connecting mechanism (10) is detachably connected to the limiting plug cone (9).

3. A composite pile for construction engineering according to claim 2, characterized in that: A sleeve (7) is slidably sleeved on the outer circumference of each limiting insert cone (9), and one end of the sleeve (7) is fixed on the inner circumference of the pile body (5).

4. A composite pile for construction engineering according to claim 3, characterized in that: The connecting mechanism (10) comprises a spring (102), a concave block (103), a J-shaped rod (105) and a triangular block (101); a slide groove (104) is arranged inside the upper end of the concave block (103); the triangular block (101) is slidably embedded in the slide groove (104); the spring (102) is embedded at the bottom of the slide groove (104) to resist the triangular block (101); one end of the J-shaped rod (105) is connected to the triangular block (101); the other end of the J-shaped rod (105) is located in the groove of the concave block (103) and is movably connected to one end of the limiting plug cone (9).

5. A composite pile for construction engineering according to claim 4, characterized in that: A stopper (8) is fixed to the other end of the sleeve (7) and is used to squeeze the triangular block (101) so that the J-shaped rod (105) is separated from the limiting insert cone (9).

6. A composite pile for construction engineering according to claim 3 or 4, characterized in that: The pile body (5) is provided with a through hole (6) in the radial direction, which penetrates the sleeve (7) and is used to allow the limiting cone (9) to extend out of the outer periphery of the pile body (5).

7. A composite pile for construction engineering according to claim 5, characterized in that: The outer circumference of the limiting insert cone (9) is provided with barbs (901) for limiting its extension into the inner circumference of the pile body (5).

8. A composite pile for construction engineering according to claim 7, characterized in that: One end of the limiting plug cone (9) is provided with a mounting hole, and the other end of the J-shaped rod (105) is movably inserted into the mounting hole.

9. A composite pile for construction engineering according to claim 8, characterized in that: The upper end of the screw rod (2) is sleeved with a pulley (1) which is driven to rotate by a motor.

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