Prestressed inclined pile composite support for foundation pit construction

Abstract

This utility model discloses a prestressed inclined pile composite support for foundation pit construction, including a support pile and an inclined pile. A first fixing member is fixedly connected to the top of the support pile, and a second fixing member is fixedly connected to the top of the inclined pile. An adjustment mechanism is provided between the first and second fixing members. This utility model, by setting an angle-adaptive adjustment structure composed of a first spherical shell, a first sphere, a connecting rod, a second sphere, and a second spherical shell, allows the inclined pile to flexibly adjust its angle to adapt to the actual needs of complex foundation pit shapes. Simultaneously, by setting a first cylinder, a first telescopic rod, a first clamping circular plate, and a second cylinder, a second telescopic rod, and a second clamping circular plate, rapid locking and unlocking of the inclined pile angle is achieved. Furthermore, the anti-slip circular plates set inside the first and second spherical shells further increase the friction between the spheres and the piles, effectively preventing the spheres from rotating due to force.

Description

Technical Field

[0001] This utility model relates to the field of building engineering technology, and in particular to a prestressed inclined pile composite support for foundation pit construction. Background Technology

[0002] In modern foundation pit support engineering, with the increasing complexity and diversification of urban underground space development, foundation pit shapes are becoming increasingly complex, highlighting the adaptability issues of traditional support structures. Existing inclined pile support systems typically employ hinged joints with fixed angles, which are insufficient to meet the precise adaptation requirements of complex foundation pit shapes. For example, in irregular foundation pits or sloping strata, the angle adjustment range of traditional hinged joints is limited, making it impossible to achieve precise adjustment of the inclined pile inclination angle, thus restricting the stability and construction efficiency of the support structure.

[0003] Furthermore, existing angle locking devices mostly rely on mechanical locking mechanisms, which have low adjustment accuracy, are complex to operate, and are difficult to lock and unlock quickly during construction, further affecting construction progress and support effectiveness. The limitations of traditional technologies are particularly pronounced in complex working conditions requiring frequent angle adjustments. Utility Model Content

[0004] The purpose of this invention is to provide a prestressed inclined pile composite support for foundation pit construction, in order to solve the problems of insufficient adaptability of the existing inclined pile support system under complex foundation pit shapes, low angle adjustment accuracy, complex operation, and low locking and unlocking efficiency.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a prestressed inclined pile composite support for foundation pit construction, including a support pile and an inclined pile. The top end of the support pile is fixedly connected to a first fixing member, and the top end of the inclined pile is fixedly connected to a second fixing member. An adjustment mechanism is provided between the first fixing member and the second fixing member. The adjustment mechanism includes a first mounting shell fixedly connected to the right side of the first fixing member and a second mounting shell fixedly connected to the bottom surface of the second fixing member. A connecting rod is provided between the second mounting shell and the first mounting shell. The left end of the connecting rod is fixedly connected to a first sphere. The outer surface of the first sphere is rotatably connected to a first spherical shell. The first spherical shell is fixedly connected to the right side of the first mounting shell. The right end of the connecting rod is fixedly connected to a second sphere. The outer surface of the second sphere is rotatably connected to a second spherical shell. The second spherical shell is fixedly connected to the left side of the second mounting shell.

[0006] Preferably, in the above-mentioned prestressed inclined pile composite support for foundation pit construction, a first mounting base is fixedly connected to the inner bottom wall of the first mounting shell, a first through hole is opened inside the first mounting shell, a first cylinder is fixedly installed on the upper surface of the first mounting base, and a first telescopic rod is fixedly installed on the telescopic end of the first cylinder.

[0007] Preferably, in the above-mentioned prestressed inclined pile composite support for foundation pit construction, the first telescopic rod passes through the first through hole and is fixedly connected to the first clamping circular plate, and the first clamping circular plate is slidably connected to the inner wall of the first spherical shell.

[0008] Preferably, in the above-mentioned prestressed inclined pile composite support for foundation pit construction, a second mounting base is fixedly connected to the inner bottom wall of the second mounting shell, and a second through hole is provided inside the second mounting shell.

[0009] Preferably, in the above-mentioned prestressed inclined pile composite support for foundation pit construction, a second cylinder is fixedly installed on the upper surface of the second mounting base, and a second telescopic rod is fixedly installed on the telescopic end of the second cylinder.

[0010] Preferably, in the above-mentioned prestressed inclined pile composite support for foundation pit construction, the second telescopic rod passes through the second through hole and is fixedly connected to the second clamping circular plate, and the second clamping circular plate is slidably connected to the inner wall of the second spherical shell.

[0011] Preferably, in the above-mentioned prestressed inclined pile composite support for foundation pit construction, both the first spherical shell and the second spherical shell are provided with anti-slip circular plates, and the two anti-slip circular plates are respectively fixedly connected to the side of the second clamping circular plate near the second sphere and the side of the first clamping circular plate near the first sphere.

[0012] The advantages and beneficial effects of this utility model are:

[0013] This utility model, through the adoption of an angle-adaptive adjustment structure consisting of a first spherical shell, a first sphere, a connecting rod, a second sphere, and a second spherical shell, enables the inclined pile to flexibly adjust its angle to adapt to the actual needs of complex foundation pit shapes. During construction, the first sphere can rotate freely within the first spherical shell, and the second sphere can rotate freely within the second spherical shell, thereby causing the connecting rod to change its angle and achieving adaptive adjustment of the angle between the inclined pile and the support pile. This design effectively solves the problem of insufficient adaptability caused by the limited angle adjustment range of the hinged joint in traditional inclined pile support systems, significantly improving the stability and construction efficiency of the support structure in irregular foundation pits or inclined strata.

[0014] II. This utility model achieves rapid locking and unlocking of the angle of the inclined pile by setting up a first cylinder, a first telescopic rod, a first clamping circular plate, and a second cylinder, a second telescopic rod, and a second clamping circular plate. When the angle of the inclined pile is adjusted to the ideal position, the first cylinder pushes the first telescopic rod, causing the first clamping circular plate to abut against the first sphere, restricting its rotation within the first spherical shell. Similarly, the second cylinder pushes the second telescopic rod, causing the second clamping circular plate to abut against the second sphere, restricting its rotation within the second spherical shell. Furthermore, the anti-slip circular plates installed inside the first and second spherical shells further increase the friction between the plates and the spheres, effectively preventing the spheres from rotating due to force. This design significantly improves the accuracy and efficiency of angle locking while simplifying the operation process, making it particularly suitable for complex working conditions requiring frequent angle adjustments, effectively improving construction progress and support effectiveness. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the front view of the structure of this utility model after installation;

[0016] Figure 2 This is a utility model Figure 1 Enlarged view of point A in the middle;

[0017] Figure 3 This is a three-dimensional front view schematic diagram of the adjustment mechanism of this utility model after it has been cut;

[0018] Figure 4 This is a utility model Figure 3 Enlarged diagram of point B in the middle.

[0019] In the diagram: 1. Support pile; 2. Inclined pile; 3. First fixing component; 4. Second fixing component; 5. Adjustment mechanism; 501. First mounting housing; 502. First mounting base; 503. First cylinder; 504. First telescopic rod; 505. First clamping circular plate; 506. First through hole; 507. First spherical housing; 508. First sphere; 509. Connecting rod; 510. Second sphere; 511. Second spherical housing; 512. Second mounting housing; 513. Second through hole; 514. Second mounting base; 515. Second cylinder; 516. Second telescopic rod; 517. Second clamping circular plate; 518. Anti-slip circular plate. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0021] like Figures 1 to 4 As shown, a prestressed inclined pile composite support for foundation pit construction includes a support pile 1 and an inclined pile 2. The top end of the support pile 1 is fixedly connected to a first fixing member 3, and the top end of the inclined pile 2 is fixedly connected to a second fixing member 4. An adjustment mechanism 5 is provided between the first fixing member 3 and the second fixing member 4. The adjustment mechanism 5 includes a first mounting shell 501 fixedly connected to the right side of the first fixing member 3 and a second mounting shell 512 fixedly connected to the bottom surface of the second fixing member 4. A connecting rod 509 is provided between the second mounting shell 512 and the first mounting shell 501. The left end of the connecting rod 509 is fixedly connected to a first sphere 508. The outer surface of the first sphere 508 is rotatably connected to a first spherical shell 507. The first spherical shell 507 is fixedly connected to the right side of the first mounting shell 501. The right end of the connecting rod 509 is fixedly connected to a second sphere 510. The outer surface of the second sphere 510 is rotatably connected to a second spherical shell 511. The second spherical shell 511 is fixedly connected to the left side of the second mounting shell 512.

[0022] The inner bottom wall of the first mounting housing 501 is fixedly connected to the first mounting base 502. The interior of the first mounting housing 501 is provided with a first through hole 506. The upper surface of the first mounting base 502 is fixedly mounted with a first cylinder 503. The telescopic end of the first cylinder 503 is fixedly mounted with a first telescopic rod 504.

[0023] The first telescopic rod 504 passes through the first through hole 506 and is fixedly connected to the first clamping circular plate 505. The first clamping circular plate 505 is slidably connected to the inner wall of the first spherical shell 507.

[0024] The second mounting housing 512 has a second mounting base 514 fixedly connected to its inner bottom wall, and a second through hole 513 is provided inside the second mounting housing 512.

[0025] A second cylinder 515 is fixedly mounted on the upper surface of the second mounting base 514, and a second telescopic rod 516 is fixedly mounted on the telescopic end of the second cylinder 515.

[0026] The second telescopic rod 516 passes through the second through hole 513 and is fixedly connected to the second clamping circular plate 517. The second clamping circular plate 517 is slidably connected to the inner wall of the second spherical shell 511.

[0027] Anti-slip circular plates 518 are provided inside the first spherical shell 507 and the second spherical shell 511. The two anti-slip circular plates 518 are respectively fixedly connected to the side of the second clamping circular plate 517 near the second sphere 510 and the side of the first clamping circular plate 505 near the first sphere 508.

[0028] like Figures 1 to 4 As shown, in some practical applications, the composite support of this utility model mainly includes a support pile 1, an inclined pile 2, and an adjustment mechanism 5. The support pile 1 serves as the main load-bearing structure, and its top end is connected to the first mounting housing 501 of the adjustment mechanism 5 via a first fixing member 3. The top end of the inclined pile 2 is connected to the second mounting housing 512 of the adjustment mechanism 5 via a second fixing member 4. The adjustment mechanism 5 is the core component, wherein the first mounting housing 501 is provided with a first mounting seat 502, and a first cylinder 503 is installed therein. The first cylinder 503 is connected to a first clamping circular plate 505 via a first telescopic rod 504. The second mounting housing 512 has a similar structure, including a second mounting seat 514, a second cylinder 515, a second telescopic rod 516, and a second clamping circular plate 517. The connecting rod 509 is connected at both ends to a first sphere 508 and a second sphere 510, and communicates with the mounting housing via a first spherical housing 507 and a second spherical housing 511. An anti-slip circular plate 518 is provided inside the spherical housing.

[0029] like Figures 1 to 4 As shown, in some embodiments: during construction, the support piles 1 are first driven into the ground at the designed positions, followed by the installation of inclined piles 2. Using the adjustment mechanism 5, in complex terrain, the first sphere 508 and the second sphere 510 can rotate within the spherical shell, driving the connecting rod 509 to change its angle, adaptively adjusting the angle between the inclined pile 2 and the support pile 1. When the angle is appropriate, the first cylinder 503 and the second cylinder 515 are activated, causing the first clamping circular plate 505 and the second clamping circular plate 517 to tightly abut against the first sphere 508 and the second sphere 510, respectively, completing the angle locking. The anti-slip circular plate 518 enhances the locking reliability, ensuring the stability of the support structure during foundation pit construction.

[0030] Working Principle: When dealing with complex foundation pit shapes and requiring the installation and fixing of inclined piles 2, this utility model relies on an angle adaptive adjustment structure composed of a first spherical shell 507, a first sphere 508, a connecting rod 509, a second sphere 510, and a second spherical shell 511. The first sphere 508 can rotate flexibly within the first spherical shell 507, which is securely connected to the first mounting shell 501. The first mounting shell 501 is then firmly connected to the first fixing member 3 at the top of the support pile 1. Simultaneously, the second sphere 510 rotates freely within the second spherical shell 511, which is fixedly connected to the second mounting shell 512. The second mounting shell 512 is fixed to the second fixing member 4 at the top of the inclined pile 2. The two ends of the connecting rod 509 are securely connected to the first sphere 508 and the second sphere 510, respectively. During the fixing process of the inclined pile 2, as the terrain of the construction site changes and the support requirements change, the first sphere 508 rotates in the first sphere shell 507 and the second sphere 510 rotates in the second sphere shell 511, thereby driving the connecting rod 509 to flexibly change its angle, so as to realize the adaptive adjustment of the angle of the inclined pile 2 relative to the support pile 1, so as to meet the actual requirements of the complex foundation pit shape.

[0031] Once the angle of the inclined pile 2 is adjusted to the ideal position, the locking operation begins. At this time, the first clamping circular plate 505 and the second clamping circular plate 517 play a crucial role. The first cylinder 503, fixed to the first mounting base 502 inside the first mounting housing 501, is activated, and its telescopic end pushes the first telescopic rod 504. The first telescopic rod 504 passes through the first through hole 506 inside the first mounting housing 501, driving the connected first clamping circular plate 505 to move towards the inside of the first spherical housing 507 until the first clamping circular plate 505 is tightly pressed against the first sphere 508, thereby restricting the rotation of the first sphere 508 within the first spherical housing 507. Similarly, the second cylinder 515, fixed to the second mounting base 514 inside the second mounting housing 512, is activated, and its telescopic end pushes the second telescopic rod 516. The second telescopic rod 516 passes through the second through hole 513 inside the second mounting housing 512, driving the second clamping circular plate 517 to move into the second spherical housing 511 until the second clamping circular plate 517 tightly abuts against the second sphere 510, restricting the rotation of the second sphere 510 within the second spherical housing 511. By locking the first sphere 508 and the second sphere 510 with the first clamping circular plate 505 and the second clamping circular plate 517 respectively, the angle of the connecting rod 509 is locked, ultimately ensuring the angle stability of the inclined pile 2 throughout the entire foundation pit construction process, effectively enhancing the overall stability of the support structure. Furthermore, the anti-slip circular plates 518 installed inside the first spherical housing 507 and the second spherical housing 511 are fixedly connected to the side of the first clamping circular plate 505 and the second clamping circular plate 517 closest to the sphere, further increasing the friction between them and the sphere, effectively preventing the sphere from rotating due to force within the spherical housing, significantly improving the reliability and stability of the locking mechanism.

[0032] In the description of this utility model, it should be understood that the terms "upper," "lower," "left," and "right," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or a specific orientational structure and operation. Therefore, they should not be construed as limitations on this utility model. Furthermore, "first" and "second" are only for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "multiple" means two or more.

[0033] It should be noted that all standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, which will not be described in detail here.

[0034] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0035] The above description details one embodiment of the present utility model, but it is merely a preferred embodiment and should not be construed as limiting the scope of the present utility model. All equivalent variations and improvements made within the scope of the present utility model application should still fall within the patent coverage of the present utility model.

Claims

1. A prestressed inclined pile composite support for foundation pit construction, characterized in that: The system includes support piles (1) and inclined piles (2). A first fixing member (3) is fixedly connected to the top of the support piles (1), and a second fixing member (4) is fixedly connected to the top of the inclined piles (2). An adjustment mechanism (5) is provided between the first fixing member (3) and the second fixing member (4). The adjustment mechanism (5) includes a first mounting housing (501) fixedly connected to the right side of the first fixing member (3) and a second mounting housing (512) fixedly connected to the bottom surface of the second fixing member (4). A connecting link is provided between the second mounting housing (512) and the first mounting housing (501). A connecting rod (509) is provided. A first sphere (508) is fixedly connected to the left end of the connecting rod (509). A first spherical shell (507) is rotatably connected to the outer surface of the first sphere (508). The first spherical shell (507) is fixedly connected to the right side of the first mounting shell (501). A second sphere (510) is fixedly connected to the right end of the connecting rod (509). A second spherical shell (511) is rotatably connected to the outer surface of the second sphere (510). The second spherical shell (511) is fixedly connected to the left side of the second mounting shell (512).

2. The prestressed inclined pile composite support for foundation pit construction according to claim 1, characterized in that: The first mounting housing (501) has a first mounting base (502) fixedly connected to its inner bottom wall. The first mounting housing (501) has a first through hole (506) inside. The first mounting base (502) has a first cylinder (503) fixedly mounted on its upper surface. The first telescopic rod (504) is fixedly mounted on the telescopic end of the first cylinder (503).

3. The prestressed inclined pile composite support for foundation pit construction according to claim 2, characterized in that: The first telescopic rod (504) passes through the first through hole (506) and is fixedly connected to the first clamping circular plate (505). The first clamping circular plate (505) is slidably connected to the inner wall of the first spherical shell (507).

4. The prestressed inclined pile composite support for foundation pit construction according to claim 1, characterized in that: The second mounting housing (512) has a second mounting base (514) fixedly connected to its inner bottom wall, and a second through hole (513) is provided inside the second mounting housing (512).

5. A prestressed inclined pile composite support for foundation pit construction according to claim 4, characterized in that: A second cylinder (515) is fixedly mounted on the upper surface of the second mounting base (514), and a second telescopic rod (516) is fixedly mounted on the telescopic end of the second cylinder (515).

6. The prestressed inclined pile composite support for foundation pit construction according to claim 5, characterized in that: The second telescopic rod (516) passes through the second through hole (513) and is fixedly connected to the second clamping circular plate (517). The second clamping circular plate (517) is slidably connected to the inner wall of the second spherical shell (511).

7. A prestressed inclined pile composite support for foundation pit construction according to claim 1, characterized in that: The first spherical shell (507) and the second spherical shell (511) are each provided with an anti-slip circular plate (518). The two anti-slip circular plates (518) are respectively fixedly connected to the side of the second clamping circular plate (517) near the second sphere (510) and the side of the first clamping circular plate (505) near the first sphere (508).

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