Cast-in-place pile casing structure

Abstract

The utility model discloses a cast-in-place pile casing structure which comprises a casing body, a lengthened cylinder is connected to one side of the casing body and used for increasing the height of the casing, a sliding groove is formed in the side, close to the lengthened cylinder, of the casing body, and the lengthened cylinder is connected into the sliding groove in a sliding mode. A telescopic structure is arranged at the end, close to the inner wall of the sliding groove, of the lengthened barrel and used for moving the part, in the sliding groove, of the lengthened barrel, and a fixing structure used for fixing the lengthened barrel and the pile casing body is arranged on the outer side of the pile casing body. The height of the pile casing can be conveniently adjusted so as to adapt to cast-in-place piles with different casing heights.

Description

Technical Field

[0001] The utility model relates to the technical field of construction engineering, in particular to a cast-in-place pile casing structure. Background Art

[0002] Cast-in-place piles are widely used in construction due to their advantages of no vibration, no soil squeezing, low noise, and suitability for use in densely built urban areas. According to different hole-forming processes, cast-in-place piles can be divided into cast-in-place piles with dry holes, cast-in-place piles with mud wall protection holes, and cast-in-place piles with manual holes.

[0003] However, traditional casing structures are mostly fixed in height and cannot be flexibly adjusted according to actual needs, which is particularly inconvenient when facing different geological conditions and construction requirements.

[0004] At present, although there are some height-adjustable casings on the market, they often have complex structures, cumbersome adjustment processes, and their stability needs to be improved. Utility Model Content

[0005] The present application provides a casing structure for a bored pile, which is convenient for adjusting the height of the casing to adapt to bored piles of different casing heights.

[0006] The present application provides a cast-in-place pile casing structure, which adopts the following technical solution:

[0007] A cast-in-place pile casing structure comprises a casing body, one side of the casing body is connected to an extension tube, the extension tube is used to increase the height of the casing, a slide groove is provided on the side of the casing body close to the extension tube, the extension tube is slidably connected in the slide groove, a telescopic structure is provided at one end of the extension tube close to the inner wall of the slide groove, the telescopic structure is used to move the part of the extension tube in the slide groove, and a fixing structure for fixing the extension tube and the casing body is provided on the outside of the casing body.

[0008] By adopting the above technical scheme, the utility model designs a casing structure for bored piles. When in use, the extension tube is slidably connected to the slide groove in the casing body, and the telescopic length of the extension tube is determined according to the height of the bored pile. After the determination, the casing body and the extension tube are fixed to each other by a fixing structure, and the bored column is protected by the lengthened casing. Therefore, the utility model designs a casing structure for bored piles, which is convenient for adjusting the height of the casing to adapt to bored piles of different casing heights.

[0009] Preferably, the telescopic structure comprises a telescopic spring fixed to the inner wall of the slide slot, an end of the telescopic spring away from the inner wall of the slide slot is fixed to a telescopic plate, and the telescopic plate abuts against an end of the extension tube close to the inner wall of the slide slot.

[0010] By adopting the above technical solution, the telescopic spring is provided to facilitate the movement of the telescopic plate in the chute by utilizing the elasticity of the telescopic spring; the telescopic plate is provided to move the extension cylinder by its own movement through abutting against the extension cylinder.

[0011] Preferably, the fixing structure includes a first flange fixedly connected to the outside of the casing body, a second flange fixedly connected to the outside of the extension cylinder, a plurality of threaded holes are provided on both the first flange and the second flange, a first fastening bolt is threadedly connected to the threaded hole, a limit column with a replaceable length is provided on the first fastening bolt, the limit column is threadedly connected to the first fastening bolt, and both ends of the limit column abut against the first flange and the second flange respectively.

[0012] By adopting the above technical solution, the first flange and the second flange are provided to facilitate the setting of a plurality of threaded holes; the threaded holes are provided to facilitate the threaded connection of the first fastening bolt; the first fastening bolt and the limit column are provided. After determining the height, determine the distance between the first flange and the second flange and select the corresponding limit column. After threadedly connecting the limit column to the first fastening bolt, tighten the nut on the first fastening bolt to fix the extension cylinder and the casing body to each other.

[0013] Preferably, a reinforcement structure is provided at the bottom of the first flange. The reinforcement structure includes a reinforcement block provided at the bottom of the first flange, and the reinforcement block is fixed to the casing body by a second fastening bolt.

[0014] By adopting the above technical solution, the provided reinforcement block is convenient for improving the stability of the first flange on the casing body; the provided second fastening bolt is convenient for further fixing the reinforcement block.

[0015] Preferably, a sealing gasket is provided at the top end of the chute. The sealing gasket is fixedly connected to the top end of the chute, and the side of the sealing gasket away from the chute abuts against the extension cylinder.

[0016] By adopting the above technical solution, the provided sealing gasket is convenient for preventing poured concrete or other soil bodies from entering the chute and affecting the movement of the extension cylinder in the chute.

[0017] Preferably, reinforcing ribs are cross-connected inside the casing body, and the reinforcing ribs are used to improve the structural strength of the casing body.

[0018] By adopting the above technical solution, the provided reinforcing ribs are convenient for improving the structural strength of the casing body, thereby improving the stability of the casing body in the soil layer.

[0019] Preferably, a plurality of cutting edges are provided on the side of the casing body away from the extension cylinder, and the casing body is inserted into the soil layer through the cutting edges.

[0020] By adopting the above technical solution, the provided cutting edge facilitates the fixation of the casing body in the soil layer, improves the stability of the casing in the soil layer, and prevents the casing from being lifted by the steel reinforcement cage.

[0021] Preferably, a lifting ring is arranged on the outer side of the casing body, and the lifting ring is used to lift the casing body out of the soil layer.

[0022] By adopting the above technical solution, the provided lifting ring facilitates the lifting of the casing body by a crane.

[0023] In summary, the present application has the following beneficial effects:

[0024] 1. With the provided chute and telescopic spring in this structure, the extension tube can move in the chute, thereby controlling the total length of the casing body and the extension tube. This design can be adjusted for perfusion holes of different heights, improving the applicability of this structure;

[0025] 2. In this structure, through the mutual connection of the flange, the limit post and the first fastening bolt, the casing after adjusting the length is fixed, further ensuring the stability of the casing after adjusting the height;

[0026] 3. By arranging a reinforcement structure at the bottom of the first flange in this structure, the first flange is protected by the reinforcement structure to prevent the first flange from loosening due to the pressure of the soil layer, etc., affecting the use of the casing. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a schematic structural diagram of the embodiment;

[0028] Figure 2 is a cross-sectional view showing the fixing structure in the embodiment;

[0029] Figure 3 is an enlarged schematic view showing the telescopic structure in the embodiment;

[0030] Figure 4 is a schematic structural diagram showing the casing body in the embodiment;

[0031] Explanation of reference numerals: 1, casing body; 2, extension tube; 3, chute; 4, telescopic structure; 41, telescopic spring; 42, telescopic plate; 5, fixing structure; 51, first flange; 52, second flange; 53, threaded hole; 54, first fastening bolt; 55, limit post; 6, reinforcement structure; 61, reinforcement block; 62, second fastening bolt; 7, sealing gasket; 8, reinforcing rib; 9, cutting edge; 10, lifting ring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0032] The present utility model will be further described in detail below in conjunction with the accompanying drawings. The same components are denoted by the same reference numerals. It should be noted that the terms "front", "rear", "left", "right", "upper", "lower", "bottom surface" and "top surface" used in the following description refer to the directions in the drawings, and the terms "inner" and "outer" refer to the directions towards or away from the geometric center of a specific component, respectively.

[0033] The present utility model discloses a cast-in-place pile casing structure, as Figures 1 to 4 shown, which includes a casing body 1. Cross-connected reinforcing ribs 8 are arranged inside the casing body 1. Through the cross-connection of the reinforcing ribs 8, the structural strength of the casing body 1 is significantly improved. One side of the casing body 1 is connected with an extension tube 2, and the extension tube 2 is used to increase the height of the casing. A sliding groove 3 is opened on one side of the casing body 1 close to the extension tube 2, and the extension tube 2 is slidably connected inside the sliding groove 3. By using the telescopic structure 4 and the sliding groove 3 design, the extension tube 2 can move freely inside the casing body 1, so as to flexibly adjust the overall height of the casing according to needs. One end of the extension tube 2 close to the inner wall of the sliding groove 3 is provided with a telescopic structure 4, and the telescopic structure 4 is used to move the part of the extension tube 2 inside the sliding groove 3. The telescopic structure 4 includes a telescopic spring 41 fixedly connected to the inner wall of the sliding groove 3. One end of the telescopic spring 41 away from the inner wall of the sliding groove 3 is fixedly connected with a telescopic plate 42, and the telescopic plate 42 abuts against one end of the extension tube 2 close to the inner wall of the sliding groove 3. A sealing gasket 7 is arranged at the top end of the sliding groove 3. The sealing gasket 7 is fixedly connected to the top end of the sliding groove 3, and one side of the sealing gasket 7 away from the sliding groove 3 abuts against the extension tube 2. This design aims to improve the sealing performance of the casing, prevent soil and moisture from entering the inside of the casing, and thus ensure the quality of the cast-in-place pile construction.

[0034] A fixing structure 5 is arranged outside the casing body 1 for fixing the extension tube 2 and the casing body 1. The fixing structure 5 includes a first flange 51 fixedly connected to the outside of the casing body 1, and a second flange 52 is fixedly connected to the outside of the extension tube 2. The design of these two flanges aims to improve the connection stability between the extension tube 2 and the casing body 1, ensuring that there will be no relative movement or detachment during the construction process. A plurality of threaded holes 53 are arranged on both the first flange 51 and the second flange 52, and a first fastening bolt 54 is threadedly connected to the threaded hole 53. A limit post 55 with a replaceable length is arranged on the first fastening bolt 54, and the limit post 55 is threadedly connected to the first fastening bolt 54. Both ends of the limit post 55 abut against the first flange 51 and the second flange 52 respectively. A reinforcing structure 6 is arranged at the bottom of the first flange 51. The reinforcing structure 6 includes a reinforcing block 61 arranged at the bottom of the first flange 51. The reinforcing block 61 and the casing body 1 are tightly connected by a second fastening bolt 62 to form a stable support structure. The design of the reinforcing block 61 aims to further enhance the overall strength and stability of the casing structure and prevent deformation or damage during the construction process.

[0035] On one side of the casing body 1 far away from the extension tube 2, there are multiple blade feet 9. The casing body 1 is inserted into the soil layer through the blade feet 9. The design of the blade feet 9 reduces the resistance when the casing is inserted into the soil layer, making the construction process smoother and more efficient. On the outer side of the casing body 1, there is a lifting ring 10. The lifting ring 10 is used to lift the casing body 1 out of the soil layer. The lifting ring 10 provides a convenient lifting point, facilitating the lifting of the casing out of the soil layer for recycling or transfer after the construction is completed.

[0036] Working principle: A cast-in-place pile casing structure designed by the present utility model mainly adjusts the total length of the casing body 1 and the extension tube 2 by the movement of the extension tube 2 in the chute 3. After adjusting the length, multiple threaded holes 53 are provided on the first flange 51 and the second flange 52 to threadedly connect the first fastening bolts 54. By adjusting the length of the limit posts 55 on the first fastening bolts 54, the distance and fastening force between the two flanges can be precisely controlled, thereby fixing the extension tube 2 and the casing body 1 to each other. Therefore, a cast-in-place pile casing structure designed by the present utility model is convenient for adjusting the height of the casing to adapt to cast-in-place piles of different heights.

[0037] The above are all the preferred embodiments of this application. The protection scope of this application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. A cast-in-place pile casing structure, characterized in that: The invention comprises a casing body (1), one side of which is connected to an extension tube (2), the extension tube (2) being used to increase the height of the casing, a slide groove (3) being provided on a side of the casing body (1) close to the extension tube (2), the extension tube (2) being slidably connected in the slide groove (3), a telescopic structure (4) being provided at one end of the extension tube (2) close to the inner wall of the slide groove (3), the telescopic structure (4) being used to move the part of the extension tube (2) in the slide groove (3), and a fixing structure (5) being provided on the outer side of the casing body (1) for fixing the extension tube (2) and the casing body (1).

2. A cast-in-place pile casing structure according to claim 1, characterized in that: The telescopic structure (4) comprises a telescopic spring (41) fixedly connected to the inner wall of the slide groove (3); one end of the telescopic spring (41) away from the inner wall of the slide groove (3) is fixedly connected to a telescopic plate (42); and the telescopic plate (42) abuts against one end of the extension tube (2) close to the inner wall of the slide groove (3).

3. A cast-in-place pile casing structure according to claim 1, characterized in that: The fixing structure (5) comprises a first flange (51) fixedly connected to the outer side of the casing body (1); a second flange (52) fixedly connected to the outer side of the extension tube (2); a plurality of threaded holes (53) are provided on the first flange (51) and the second flange (52); a first fastening bolt (54) is threadedly connected to the threaded hole (53); a limit column (55) of replaceable length is provided on the first fastening bolt (54); the limit column (55) is threadedly connected to the first fastening bolt (54); two ends of the limit column (55) are respectively abutted against the first flange (51) and the second flange (52).

4. A cast-in-place pile casing structure according to claim 3, characterized in that: A reinforcement structure (6) is provided at the bottom of the first flange (51), and the reinforcement structure (6) comprises a reinforcement block (61) provided at the bottom of the first flange (51), and the reinforcement block (61) is fixed to the casing body (1) via a second fastening bolt (62).

5. The cast-in-place pile casing structure according to claim 1, characterized in that: A sealing gasket (7) is provided at the top of the slide groove (3), and the sealing gasket (7) is fixed to the top of the slide groove (3). The side of the sealing gasket (7) away from the slide groove (3) abuts against the extension tube (2).

6. The cast-in-place pile casing structure according to claim 1, characterized in that: Cross-connected reinforcing ribs (8) are arranged inside the casing body (1), and the reinforcing ribs (8) are used to improve the structural strength of the casing body (1).

7. The cast-in-place pile casing structure according to claim 1, characterized in that: A plurality of blade feet (9) are provided on one side of the casing body (1) away from the extension tube (2), and the casing body (1) is inserted into the soil layer through the blade feet (9).

8. The cast-in-place pile casing structure according to claim 1, characterized in that: A lifting ring (10) is arranged on the outside of the casing body (1), and the lifting ring (10) is used to lift the casing body (1) out of the soil layer.

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