Composite pile for foundation engineering

Abstract

The utility model relates to the technical field of combined piles, and discloses a combined pile for foundation engineering, which comprises a lower pile body, an upper pile body is arranged at the top of the lower pile body, a halfpace is coaxially arranged at the bottom end of the upper pile body, and sliding blocks are inserted into the upper parts of the two sides of the lower pile body; the connecting column is coaxially arranged at the bottom end of the halfpace, the bottom end of the connecting column is coaxially connected with a chuck, a screw rod is inserted into the sliding block on the right side through a bearing, the left side of the screw rod is of a threaded structure, and the left end of the screw rod is rotationally connected with the interior of the sliding block on the left side; the chuck is installed on the upper portion of the inner side of the sliding block. According to the combined pile for the foundation engineering, the upper pile body and the halfpace are inserted into the lower pile body, and then the sliding blocks on the two sides are driven to be closed by rotating the screw rod, so that the chuck can be held and locked, gaps of connecting parts are reduced, and the risks of deformation and displacement caused by untight connection during load bearing are reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of combined pile, specifically to a combined pile for foundation engineering. BACKGROUND

[0002] The foundation engineering is the root of the whole building engineering, and its quality is directly related to the safety, stability and durability of the building. A good foundation can effectively transfer the load of the building to the ground soil, ensuring that the building does not have problems such as excessive settlement, inclination or collapse during the service life. The combined pile is a new type of foundation form that combines different types of piles or piles with other foundation elements. It aims to utilize the advantages of various pile types or foundation elements and overcome the limitations of traditional foundation forms.

[0003] The two sections of the common combined pile body are fixedly connected by the horizontally arranged connecting pin. When subjected to vertical tension, the connecting pin will break or bend and cause the adjacent two pile bodies to separate, resulting in unstable connection and failing to meet the working requirements of the combined pile. Therefore, a combined pile for foundation engineering is proposed. SUMMARY

[0004] (I) Technical problem solved

[0005] In view of the deficiencies of the prior art, the utility model provides a combined pile for foundation engineering to solve the technical problem that the connecting pin will break or bend when subjected to excessive shear force.

[0006] (II) Technical scheme

[0007] To achieve the above purpose, the utility model provides the following technical scheme: a combined pile for foundation engineering, comprising:

[0008] A lower pile body is provided with an upper pile body at the top, and a ladder stand is coaxially arranged at the bottom of the upper pile body. Sliders are inserted into the upper part of both sides of the lower pile body.

[0009] A connecting column is coaxially arranged at the bottom of the ladder stand, and a chuck is connected to the bottom of the connecting column. A screw rod is inserted into the inside of the right slider through a bearing, and the left side of the screw rod is a threaded structure. The left end of the screw rod is rotationally connected to the inside of the left slider.

[0010] The clamping head is arranged on the inner side upper portion of the sliding block, arc-shaped clamping grooves are formed in the inner side upper portions of the clamping head, plug grooves are formed in the inner lower sides of the clamping head, limit strips are arranged in the inner sides of the lower pile bodies at the positions of the upper portions of the sliding blocks, sliding grooves are formed in the top portions of the sliding blocks, and the limit strips are inserted into the sliding grooves.

[0011] Preferably, the arc-shaped clamping grooves are adapted to the shapes of the connecting columns, the widths of the plug grooves are adapted to the thicknesses of the chucks, and rubber pads are arranged on the inner walls of the arc-shaped clamping grooves and the plug grooves, so that the tightness of the clamping head and the chuck is improved.

[0012] Preferably, assembly holes are formed in the inner side lower portions of the sliding blocks, and springs are inserted into the assembly holes, so that the stability of the sliding block during movement is improved.

[0013] Preferably, assembly strip plates are arranged on the outer sides of the lower pile bodies, connecting blocks are arranged on the outer sides of the upper pile bodies and correspond to the assembly strip plates, and sealing washers are arranged on the joint surfaces of the lower pile bodies and the upper pile bodies.

[0014] Preferably, the lengths of the assembly strip plates exceed half of the lengths of the lower pile bodies, plug holes are formed in the inner sides of the assembly strip plates, and reinforcing rods are connected to the bottom portions of the connecting blocks and correspond to the plug holes, so that the circumferential strength of the upper pile body and the lower pile body is improved after combination, and the combination strength of the pile body is improved.

[0015] (Three) beneficial effects

[0016] Compared with the prior art, the utility model provides a combined pile for foundation engineering, which has the following beneficial effects:

[0017] The combined pile for foundation engineering inserts the upper pile body and the ladder into the inner side of the lower pile body, rotates the screw rod to drive the sliding blocks on the two sides to close, so that the clamping head is clamped on the outer side of the chuck, the chuck is tightly locked, the combination and installation of the upper pile body and the lower pile body are completed, the horizontal direction and the vertical direction of the chuck are limited after the clamping head is clamped, the connection between the upper pile body and the lower pile body is more compact and firm, the gap of the connection part is reduced, the deformation and displacement risk caused by the loose connection when bearing the load is reduced, and when bearing a large pulling force, including in the foundation engineering resisting horizontal load such as wind force and earthquake force, the connection mode can better transmit the pulling force of the upper pile body to the lower pile body, improve the overall anti-pulling performance of the combined pile, and improve the use quality of the combined pile. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a structural schematic view of the utility model;

[0019] Figure 2 It is the assembly structure schematic view of the lower pile body and the upper pile body of the utility model;

[0020] Figure 3 It is the sectional structure schematic view of the lower pile body of the utility model;

[0021] Figure 4 It is the ladder stand structure schematic view of the utility model;

[0022] Figure 5 It is the slider and screw structure schematic view of the utility model;

[0023] Figure 6 It is the slider, screw and spring assembly structure schematic view of the utility model;

[0024] Figure 7 It is the limiting strip structure schematic view of the utility model.

[0025] In the drawing: 1, lower pile body; 2, upper pile body; 3, slider; 4, ladder stand; 5, connecting column; 6, chuck; 7, screw; 8, chuck; 9, arc clamping groove; 10, insertion slot; 11, limiting strip; 12, sliding groove; 13, assembly hole; 14, spring; 15, assembly strip plate; 16, insertion hole; 17, connecting block; 18, reinforcing rod. DETAILED DESCRIPTION

[0026] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0027] The utility model provides a kind of technical scheme, a combined pile for foundation engineering, including lower pile body 1, upper pile body 2, slider 3, ladder stand 4, connecting column 5, chuck 6, screw 7, chuck 8, arc clamping groove 9, insertion slot 10, limiting strip 11, sliding groove 12, assembly hole 13, spring 14, assembly strip plate 15, insertion hole 16, connecting block 17 and reinforcing rod 18:

[0028] Please refer to Figure 1 , the top of lower pile body 1 is equipped with upper pile body 2, please refer to Figure 2 , the bottom of upper pile body 2 is coaxially equipped with ladder stand 4, please refer to Figure 3 , the upper portion of both sides of lower pile body 1 is inserted with slider 3;

[0029] Please refer to Figure 4 , connecting column 5 is coaxially equipped at the bottom of ladder stand 4, the bottom of connecting column 5 is coaxially connected with chuck 6, please refer to Figure 5The inside of the right slider 3 is inserted with a screw rod 7 through a bearing, the left side of the screw rod 7 is a threaded structure, and the left end of the screw rod 7 is screw-connected with the inside of the left slider 3, please refer to Figure 6 The inside lower part of the slider 3 is provided with an assembly hole 13, and the inside of the assembly hole 13 is inserted with a spring 14;

[0030] The inside upper part of the slider 3 is provided with a clamping head 8, the inside upper part of the clamping head 8 is provided with an arc-shaped clamping groove 9, and the inside lower part of the clamping head 8 is provided with an insertion slot 10, please refer to Figure 7 The inside of the lower pile body 1 is provided with a limiting strip 11 at the upper part of the slider 3, please refer to Figure 6 The top of the slider 3 is provided with a sliding groove 12, the limiting strip 11 is inserted into the inside of the sliding groove 12, the shape of the arc-shaped clamping groove 9 is matched with the connecting column 5, the width of the insertion slot 10 is matched with the thickness of the chuck 6, the inner walls of the arc-shaped clamping groove 9 and the insertion slot 10 are paved with rubber pads, by inserting the upper pile body 2 and the ladder 4 into the inside of the lower pile body 1, and then rotating the screw rod 7 to drive the sliders 3 on both sides to close, the clamping head 8 can be clamped on the outside of the chuck 6, so that the chuck 6 can be tightly locked, that is, the combination and installation of the upper pile body 2 and the lower pile body 1 can be completed, because the clamping head 8 can limit the horizontal direction and the vertical direction of the chuck 6 after clamping, the connection between the upper pile body 2 and the lower pile body 1 is more compact and firm, the gap of the connection part is reduced, the deformation and displacement risk caused by loose connection when bearing load is reduced, and when bearing larger uplift force, including horizontal load such as resisting wind force and earthquake force in foundation engineering, this connection mode can better transmit the pulling force of the upper pile body 2 to the lower pile body 1, improve the overall uplift performance of the composite pile, and improve the use quality of the composite pile;

[0031] Please refer to Figure 2 The outside of the lower pile body 1 is provided with an assembly strip plate 15, the outside of the upper pile body 2 is provided with a connecting block 17 at the position corresponding to the assembly strip plate 15, the joint surface of the lower pile body 1 and the upper pile body 2 is paved with a sealing washer, the length of the assembly strip plate 15 exceeds half of the length of the lower pile body 1, the inside of the assembly strip plate 15 is provided with an insertion hole 16, the bottom of the connecting block 17 is connected with a reinforcing rod 18 at the position corresponding to the insertion hole 16, and the added reinforcing rod 18 and the insertion hole 16 can strengthen the circumferential strength of the upper pile body 2 and the lower pile body 1 after combination, and improve the combination strength of the pile body.

[0032] The upper pile body 2 and the ladder 4 are inserted into the inside of the lower pile body 1, and then the two side sliding blocks 3 are closed by rotating the screw rod 7, so that the chuck 8 is clamped outside the chuck 6, so that the chuck 6 is tightly locked, that is, the combination installation of the upper pile body 2 and the lower pile body 1 is completed. Since the chuck 8 can limit the horizontal direction and the vertical direction of the chuck 6 after clamping, the connection between the upper pile body 2 and the lower pile body 1 is more compact and firm, the gap of the connection part is reduced, the deformation and displacement risk caused by loose connection when bearing load is reduced, and when bearing larger uplift force, including in the horizontal load resisting foundation engineering such as wind force and earthquake force, this connection mode can better transmit the pulling force of the upper pile body 2 to the lower pile body 1, improve the overall uplift performance of the composite pile, and improve the use quality of the composite pile.

[0033] It should be noted that, in this document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0034] Although the embodiments of the present application have been shown and described, it is understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A composite pile for foundation engineering, characterized in that, include: The lower pile body (1) is equipped with an upper pile body (2) at the top of the lower pile body (1), and a ladder (4) is coaxially installed at the bottom end of the upper pile body (2). Sliding blocks (3) are inserted into the upper parts of both sides of the lower pile body (1). A connecting column (5) is coaxially mounted at the bottom end of the ladder platform (4). A chuck (6) is coaxially connected to the bottom end of the connecting column (5). A screw (7) is inserted into the inside of the slider (3) on the right side through a bearing. The left side of the screw (7) has a threaded structure, and the left end of the screw (7) is screwed into the inside of the slider (3) on the left side. The chuck (8) is installed on the upper inner side of the slider (3). The upper inner side of the chuck (8) is provided with an arc-shaped groove (9). The lower inner side of the chuck (8) is provided with a slot (10). The lower pile body (1) is provided with a limit strip (11) at the position above the slider (3). The top of the slider (3) is provided with a slide groove (12). The limit strip (11) is inserted into the slide groove (12).

2. The composite pile for foundation engineering according to claim 1, characterized in that: The shape of the arc-shaped groove (9) is adapted to the connecting post (5), the width of the slot (10) is adapted to the thickness of the chuck (6), and the inner walls of the arc-shaped groove (9) and the slot (10) are both covered with rubber pads.

3. A composite pile for foundation engineering according to claim 1, characterized in that: Each slider (3) has an assembly hole (13) on its lower inner side, and a spring (14) is inserted into each assembly hole (13).

4. A composite pile for foundation engineering according to claim 1, characterized in that: The lower pile body (1) is equipped with assembly strips (15) on both sides of its exterior. The upper pile body (2) is equipped with connecting blocks (17) at positions corresponding to the assembly strips (15) on its exterior. The mating surfaces of the lower pile body (1) and the upper pile body (2) are covered with sealing gaskets.

5. A composite pile for foundation engineering according to claim 4, characterized in that: The length of each assembly strip (15) exceeds half the length of the lower pile body (1). Each assembly strip (15) has an insertion hole (16) inside. The bottom of each connecting block (17) is connected to a reinforcing rod (18) at a position corresponding to the insertion hole (16).

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