A hinged structure for foundation pit support

Abstract

The utility model discloses a hinge structure for foundation pit support is located on the tubular pile, the tubular pile is located on the foundation pit, include: first connecting surface, first connecting surface locate on the tubular pile, fixed plate, fixed plate locate on first connecting surface, the fixed plate is used for fixing tubular pile, support mechanism, support mechanism locate on fixed plate, support mechanism includes support plate, both ends of support plate are equipped with connecting shaft respectively, all connecting shaft all is equipped with the connector, the connector with fixed plate is connected. This hinge structure for foundation pit support is applied to municipal river course waterproof anti -seepage, can solve the application pain point of traditional tubular pile in pertinence: the connecting groove of tubular pile both sides can be stable butt joint adjacent tubular pile with the plug -in block, and cooperation adjustable connecting position design can improve the adhesion of tubular pile array, reduces the joint leakage.

Description

Technical Field

[0001] This utility model relates to the field of municipal river construction technology, specifically a hinged structure for foundation pit support. Background Technology

[0002] In municipal river engineering, waterproofing and seepage prevention are core elements for ensuring the stability of river functions, directly affecting the safety of surrounding municipal facilities, groundwater balance, and the riverside ecological environment. Currently, pipe piles are often used for riverbank reinforcement and seepage prevention system construction due to their moderate structural strength and convenient construction, forming a water-retaining and seepage-proof barrier through pipe pile arrays. However, in traditional pipe pile applications for river seepage prevention, the connections between pipe piles and between pipe piles and auxiliary seepage prevention structures are mostly simple splicing or rigid fixing. Under the continuous action of river water pressure and the influence of riverbed foundation settlement, leakage is prone to occur at the joints due to insufficient sealing. Especially in areas with frequent water level fluctuations, the leakage problem is more easily aggravated, affecting the overall seepage prevention effect.

[0003] Meanwhile, municipal waterways have complex topography, with irregular changes in riverbed elevation and bank slope. Traditional pipe piles lack adaptable connection and adjustment mechanisms. During construction, the pipe pile installation requires high positioning accuracy, but the fixed connection nodes are difficult to adapt to terrain differences. This not only increases the difficulty of on-site installation but also leads to insufficient fit between pipe piles, creating weak seepage barriers. Furthermore, when pipe piles are subjected to slight displacement due to water flow impact, the rigid connection structure cannot buffer stress, easily causing cracks in the pipe pile joints due to localized stress concentration. This further weakens the waterproofing and seepage prevention performance, making it difficult to meet the long-term stable seepage prevention requirements of municipal waterways. Utility Model Content

[0004] The purpose of this invention is to provide a hinged structure for foundation pit support to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a hinged structure for foundation pit support, which is mounted on a pipe pile, wherein the pipe pile is mounted on the foundation pit, comprising:

[0006] A first connecting surface is provided on the pipe pile;

[0007] A fixing plate is disposed on the first connecting surface, and the fixing plate is used to fix the pipe pile;

[0008] A support mechanism is mounted on the fixed plate;

[0009] The support mechanism includes a support plate, with connecting shafts at both ends of the support plate. All connecting shafts are equipped with connectors, which are connected to the fixing plate.

[0010] Preferably, there are at least two pipe piles, and all of the pipe piles are arranged in an array on the foundation pit, with connecting grooves and plug-in blocks connected to both sides of all the pipe piles;

[0011] The plug block is inserted into the connecting groove to fix the adjacent pipe piles on both sides.

[0012] Preferably, a groove is provided on the first connecting surface, and a sliding mechanism is provided on the groove, the sliding mechanism being used to connect and fix the fixing plate.

[0013] Preferably, the sliding mechanism includes a snap-fit ​​plate inserted into the sliding groove, the snap-fit ​​plate is provided with a connecting plate, the outer side of the connecting plate is provided with a second connecting surface, and the second connecting surface is connected to the fixing plate.

[0014] Preferably, the second connecting surface, the first connecting surface, and the fixing plate are all provided with connecting holes, which connect the connecting shaft, the second connecting surface, the fixing plate, and the first connecting surface.

[0015] Preferably, the connection slot and the plug block can be adjusted in connection position according to the specific location of the pipe pile installed on the foundation pit.

[0016] Preferably, the first connecting surface is provided on both sides of the pipe pile, and the fixing plate is provided on all the first connecting surfaces.

[0017] Preferably, the sliding mechanism slides in the groove, and the sliding mechanism can adjust the installation position of the fixing plate.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows: The hinged structure for foundation pit support, when applied to waterproofing and seepage prevention in municipal waterways, can specifically solve the pain points of traditional pipe piles: the connecting grooves and plug blocks on both sides of the pipe pile can stably connect adjacent pipe piles, and with the adjustable connection position design, it can improve the fit of the pipe pile array and reduce joint leakage; the sliding mechanism can flexibly adjust the installation position of the fixing plate by sliding in the groove, adapting to the complex terrain of the waterway and reducing the installation difficulty; the support mechanism forms a hinged structure with the connecting shaft and the connecting head, which can buffer the stress generated by water flow impact and foundation settlement, avoid joint cracking caused by rigid connection, effectively enhance the overall waterproofing and seepage prevention performance of the pipe pile, and meet the long-term stable use requirements of municipal waterways. Attached Figure Description

[0019] Figure 1 This is a front view of the structure of this utility model;

[0020] Figure 2 This utility model Figure 1 Enlarged structural diagram at point A;

[0021] Figure 3 This is a schematic diagram of the rear structure of the present invention;

[0022] Figure 4 This is a partial structural schematic diagram of the present invention;

[0023] Figure 5 This utility model Figure 4 A magnified structural diagram at point B in the middle.

[0024] In the figure: 1. Pipe pile; 2. First connecting surface; 3. Connecting hole; 4. Sliding mechanism; 41. Snap-fit ​​plate; 42. Connecting plate; 43. Second connecting surface; 5. Support mechanism; 51. Connector; 52. Connecting shaft; 53. Support plate; 6. Slide groove; 7. Fixing plate; 8. Connecting groove; 9. Insertion block. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figures 1-5 This utility model provides a technical solution: a hinged structure for foundation pit support, which is mounted on pipe piles 1. The pipe piles 1 are placed on the foundation pit and are hoisted to the installation position by a crane. They fall by their own weight. The pipe piles 1 are 24 meters long, and there are at least two pipe piles 1, the specific number depending on the construction requirements. All pipe piles 1 are arranged in an array on the foundation pit, in a straight line or arc array. Connecting grooves 8 and insertion blocks 9 are connected to both sides of all pipe piles 1. The insertion blocks 9 are inserted into the connecting grooves 8, thereby reducing the gap between two adjacent pipe piles 1. This not only enhances the waterproof effect of the pipe piles 1, but also enhances the installation stability of the pipe piles 1. It is used to fix adjacent pipe piles 1 on both sides. The connecting grooves 8 and insertion blocks 9 can be adjusted according to the specific installation position of the pipe piles 1 on the foundation pit, including:

[0027] During construction, the number of pipe piles 1 is determined according to the needs of river construction. Each pipe pile 1 with a length of 24 meters is hoisted to the preset installation position by a crane and allowed to fall to the designated position by its own weight. Then, all pipe piles 1 are arranged in a straight line or arc array. The plug blocks 9 on both sides of adjacent pipe piles 1 are inserted into the connecting grooves 8. The interlocking of the two reduces the gaps between pipe piles 1, which not only enhances the overall stability after installation but also improves the waterproof foundation effect. If the installation position of pipe piles 1 needs to be adjusted due to the river topography, the docking position of the connecting grooves 8 and plug blocks 9 can be flexibly changed to ensure that the array of pipe piles 1 is adapted to the construction scenario. Thus, through the above continuous operation, the stable deployment of pipe piles 1 in the river and the waterproof and seepage prevention function of the foundation are achieved.

[0028] The first connecting surface 2 is used to cooperate with the second connecting surface 43 to reduce the space inside the first connecting surface 2 and the second connecting surface 43. The first connecting surface 2 is provided on the pipe pile 1. The first connecting surface 2 is provided with a sliding groove 6. The sliding groove 6 is used to allow the sliding mechanism 4 to slide up and down in the pipe pile 1. The sliding mechanism 4 is provided on the sliding groove 6. The sliding mechanism 4 is used to support the fixed plate 7 and to connect and fix the fixed plate 7. The sliding mechanism 4 includes a snap-fit ​​plate 41 inserted into the sliding groove 6. The snap-fit ​​plate 41 is snapped into the sliding groove 6 and slides in the sliding groove 6, thereby adjusting the position of the connecting plate 42 on the outside of the pipe pile 1. The snap-fit ​​plate 41 is provided with the connecting plate 42. The outside of the connecting plate 42 is provided with a second connecting surface 43. The second connecting surface 43 is connected to the fixed plate 7. The second connecting surface 43 and the fixed plate 7 are fixed by bolts inserted into the connecting hole 3. The fixed plate 7 is connected to several sliding mechanisms 4, thereby stabilizing the connection of the remaining pipe piles 1.

[0029] The first connecting surface 2 on the pipe pile 1 serves as the connection foundation. It cooperates with the second connecting surface 43 of the sliding mechanism 4 to reduce the internal space between them, thus improving the tightness of the connection. The groove 6 on the first connecting surface 2 provides a movement path for the sliding mechanism 4. The locking plate 41 of the sliding mechanism 4 is inserted into the groove 6. By sliding the locking plate 41 up and down within the groove 6, the connecting plate 42 and the outer second connecting surface 43 are adjusted. Due to the unevenness of the bottom of the foundation pit, the height of the pipe pile 1 is uneven. Therefore, the sliding mechanism 4 adjusts up and down to ensure that the fixing plate 7 is installed horizontally and evenly, thereby achieving flexible adaptation of the fixing plate 7's installation position. Once the position is determined, the second connecting surface 43 and the fixing plate 7 are fixed by bolts inserted into the connecting holes 3. The fixing plate 7 is connected to several sliding mechanisms 4, effectively ensuring the overall stability of the pipe pile 1 connection through multi-point stable bearing and fixing.

[0030] The sliding mechanism 4 slides in the slide groove 6. The sliding mechanism 4 can adjust the installation position of the fixing plate 7. The second connecting surface 43, the first connecting surface 2 and the fixing plate 7 are all provided with connecting holes 3. The inner side of the connecting hole 3 is provided with threads for fixing the sliding mechanism 4 and the first connecting surface 2. The support mechanism 5 can also be connected to the first connecting surface 2 by bolts passing through the fixing plate 7 and the second connecting surface 43. The connecting hole 3 connects the connecting shaft 52, the second connecting surface 43, the fixing plate 7 and the first connecting surface 2.

[0031] The snap-fit ​​plate 41 of the sliding mechanism 4 is adapted to the slide groove 6 of the first connecting surface 2. By sliding the snap-fit ​​plate 41 in the slide groove 6, the connecting plate 42 and the second connecting surface 43 can be directly adjusted to change their positions, thereby flexibly adjusting the installation position of the fixing plate 7 to adapt to different installation requirements. Once the position is determined, since the connecting holes 3 on the second connecting surface 43, the first connecting surface 2, and the fixing plate 7 are all threaded, bolts can be screwed into the connecting holes 3 through the engagement with the threads, thus firmly fixing the sliding mechanism 4 to the first connecting surface 2. At the same time, the support mechanism 5 uses bolts to pass through the fixing plate 7 and the second connecting surface 43 and screw into the first connecting surface 2, ultimately achieving a tight connection between the connecting shaft 52, the second connecting surface 43, the fixing plate 7, and the first connecting surface 2 through the connecting holes 3, further strengthening the overall structural stability.

[0032] The fixing plate 7 is used to fix a row of pipe piles 1 connected together. The fixing plate 7 is set on the first connecting surface 2. The fixing plate 7 is fixed on the first connecting surface 2 by bolts through the connecting holes 3 on the sliding mechanism 4. The fixing plate 7 is used to fix the pipe piles 1. The first connecting surface 2 is provided on both sides of the pipe pile 1. The first connecting surface 2 is used to cooperate with the bolts and the connecting holes 3 opened on it to connect the sliding mechanism 4, the fixing plate 7 and the support mechanism 5. The fixing plate 7 is provided on all the first connecting surfaces 2.

[0033] The support mechanism 5 is mounted on the fixed plate 7. The support mechanism 5 includes a support plate 53, which is connected to the fixed plate 7 with a connector 51. After the fixed plate 7 is fixed and stabilized on the sliding mechanism 4, the connector 51 is fixed on the fixed plate 7. The connector 51 is fixed in the connecting hole 3 on the first connecting surface 2 by bolts passing through the fixed plate 7 and the sliding mechanism 4 for stable connection. The two ends of the support plate 53 are respectively provided with connecting shafts 52, and all connecting shafts 52 are provided with connectors 51. The connectors 51 are connected to the fixed plate 7. This arrangement is used to strengthen the connection of the pipe pile 1 and ensure that the pipe pile 1 has a certain compressive strength to prevent it from being washed away by the water flow of the river.

[0034] The fixing plate 7, as the core load-bearing component connecting the pipe piles 1, is set on the first connecting surfaces 2 on both sides of the pipe piles 1. It is fixed by bolts passing through the sliding mechanism 4 and the connecting holes 3 on the first connecting surface 2. By connecting with the corresponding sliding mechanism 4 on a row of pipe piles 1, the connected row of pipe piles 1 is stably connected, achieving the initial overall fixation of the pipe pile array 1. The support mechanism 5 is installed after the fixing plate 7 is fixed and stabilized by the sliding mechanism 4. The connecting shafts 52 at both ends of the support plate 53 are connected to the fixing plate 7 through the connector 51, and then bolts are passed through the fixing plate 7 and the sliding mechanism 4 and fixed in the connecting holes 3 of the first connecting surface 2, forming multiple reinforcements. This setting not only strengthens the connection stability between the pipe piles 1 through the fixing plate 7, but also further enhances the overall structural strength and compressive strength of the pipe piles 1 by relying on the support mechanism 5, effectively resisting the impact of river water flow and preventing the pipe piles 1 from being washed away due to stress imbalance.

[0035] When using the articulated structure for foundation pit support, during construction, the number of pipe piles 1 is first determined according to the needs of river construction. The pipe piles 1 with a single length of 24 meters are hoisted to the preset installation position by a crane and fall to the designated position by their own weight. Then, all the pipe piles 1 are arranged in a straight line or arc array. The plug blocks 9 on both sides of the adjacent pipe piles 1 are inserted into the corresponding connecting grooves 8. The gaps between the pipe piles 1 are reduced by the interlocking of the two, which not only enhances the installation stability, but also lays the foundation for waterproofing and seepage prevention.

[0036] Next, the position of the sliding mechanism 4 is adjusted: relying on the sliding grooves 6 on the first connecting surfaces 2 on both sides of the pipe pile 1, the locking plate 41 of the sliding mechanism 4 slides in the sliding groove 6, and simultaneously drives the connecting plate 42 and the outer second connecting surface 43 to adjust their positions, so as to adapt to the differences caused by uneven installation of the pipe pile 1, and ensure that the sliding mechanism 4 on the same row of pipe piles 1 is at the same horizontal height, providing a precise benchmark for the subsequent installation of components.

[0037] After the position of the sliding mechanism 4 is determined, the fixing plate 7 is connected to its second connecting surface 43. The fixing is completed by bolts passing through the threaded connection holes 3 on the second connecting surface 43, the sliding mechanism 4 and the first connecting surface 2. Since the pipe pile 1 has a first connecting surface 2 on both sides, the fixing plate 7 needs to be installed at the corresponding position. With the help of the connection between the fixing plate 7 and the sliding mechanism 4 on each row of pipe piles 1, the overall fixing of the entire row of pipe piles 1 is achieved, which greatly enhances the connection stability of the pipe pile 1 array.

[0038] Finally, the support mechanism 5 is connected to the inside of the fixed plate 7: the two ends of the support plate 53 of the support mechanism 5 are connected to the connector 51 through the connecting shaft 52. The angle of the connector 51 is adjusted by the rotation characteristics of the connecting shaft 52 so that the connector 51 and the fixed plate 7 are precisely fitted together and the connection is completed. Then, the bolts pass through the fixed plate 7 and the sliding mechanism 4 and are screwed into the connecting hole 3 of the first connecting surface 2 to achieve multiple stable connections. Finally, the support mechanism 5 enhances the overall compressive strength of the pipe pile 1, effectively resists the impact of river water flow, and ensures the long-term stability of the structure.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A hinged structure for foundation pit support, mounted on a pipe pile (1) located on the foundation pit, characterized in that, include: The first connecting surface (2) is provided on the pipe pile (1); A fixing plate (7) is provided on the first connecting surface (2) and is used to fix the pipe pile (1); Support mechanism (5), which is mounted on the fixed plate (7); The support mechanism (5) includes a support plate (53), and each end of the support plate (53) is provided with a connecting shaft (52). All the connecting shafts (52) are provided with a connector (51), and the connector (51) is connected to the fixing plate (7).

2. The hinged structure for foundation pit support according to claim 1, characterized in that: There are at least two pipe piles (1), and all the pipe piles (1) are arranged in an array on the foundation pit. Connecting grooves (8) and plug blocks (9) are connected to both sides of all the pipe piles (1). The plug block (9) is inserted into the connecting groove (8) to fix the adjacent pipe piles (1) on both sides.

3. The hinged structure for foundation pit support according to claim 1, characterized in that: A sliding groove (6) is provided on the first connecting surface (2), and a sliding mechanism (4) is provided on the sliding groove (6). The sliding mechanism (4) is used to connect and fix the fixing plate (7).

4. The hinged structure for foundation pit support according to claim 3, characterized in that: The sliding mechanism (4) includes a snap-fit ​​plate (41) inserted into the slide groove (6), a connecting plate (42) is provided on the snap-fit ​​plate (41), and a second connecting surface (43) is provided on the outer side of the connecting plate (42), and the second connecting surface (43) is connected to the fixing plate (7).

5. A hinged structure for foundation pit support according to claim 4, characterized in that: The second connecting surface (43), the first connecting surface (2) and the fixing plate (7) are all provided with connecting holes (3), and the connecting holes (3) connect the connecting shaft (52), the second connecting surface (43), the fixing plate (7) and the first connecting surface (2).

6. A hinged structure for foundation pit support according to claim 2, characterized in that: The connection slot (8) and the plug block (9) can be adjusted according to the specific location of the pipe pile (1) installed on the foundation pit.

7. A hinged structure for foundation pit support according to any one of claims 1, 3, and 5, characterized in that: The first connecting surface (2) is provided on both sides of the pipe pile (1), and the fixing plate (7) is provided on all the first connecting surfaces (2).

8. A hinged structure for foundation pit support according to claim 3 or 4, characterized in that: The sliding mechanism (4) slides in the groove (6) and the sliding mechanism (4) can adjust the installation position of the fixing plate (7).

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