Water-enriched stratum foundation pit pile anchor supporting structure

Abstract

This utility model discloses a pile-anchor support structure for foundation pits in water-rich strata, including a support plate and anchor rods connected to the support plate. Two fixing blocks are protruding on the side of the support plate away from the anchor rods. Two symmetrical guide rods are connected between the two fixing blocks. A screw rod is installed between the two guide rods. One end of the screw rod passes through the fixing block and is connected to a first handwheel. The same transmission slider is slidably installed on the two guide rods. The transmission slider is threadedly connected to the screw rod. Two symmetrical connecting rods are rotatably installed on the transmission slider. An installation block is rotatably installed on the other end of the two connecting rods. Two sleeves are protruding on the installation block. When supporting the support plate, the support plate can adaptively adjust the angle to accommodate different slopes of the bottom surface when in contact with the ground. Furthermore, due to the multiple ground nails installed at the bottom of the support plate, when the ground is relatively soft, the ground nails can be anchored into the bottom surface to increase the contact area with the ground, thereby improving the support capacity.

Description

Technical Field

[0001] This utility model relates to the field of pile-anchor support structure technology, specifically a pile-anchor support structure for foundation pits in water-rich strata. Background Technology

[0002] Pile-anchor support is a foundation pit support system in which one end of a tension member is fixed in the stable stratum of the excavated foundation pit, and the other end is connected to the retaining pile. It is a retaining structure developed on the basis of relatively mature research on rock anchor theory. Its safe and economical characteristics make it widely used in slope and deep foundation pit support projects.

[0003] In existing technologies, the connection between prestressed anchor rods and support piles is achieved by fixing the anchor rods on one side of the support pile with anchorages, while there is no fixing measure on the other side of the support pile. This results in poor connection strength between the anchor rods and the support piles. To solve this problem, a foundation pit pile anchor support structure is proposed.

[0004] Patent CN221072643U discloses a foundation pit pile anchor support structure, including a support plate. One side of the support plate has a slot, inside which a connecting column is installed. An anchor rod is installed outside the connecting column. Two mounting seats are fixedly installed on the other side of the support plate. Each mounting seat has a rotating block rotatably connected inside. A diagonal rod is fixedly connected to the surface of each rotating block. A telescopic cylinder is slidably connected to the outside of the diagonal rod. An adjustment assembly is provided between the telescopic cylinder and the diagonal rod. This invention, by setting up a structure including a diagonal rod, telescopic cylinder, mounting plate, and insert rod, utilizes the mounting plate and insert rod to install it on the ground for support. The position of the telescopic cylinder is adjusted under the action of locking bolts, facilitating support on the other side of the support pile, improving the connection strength between the anchor rod and the support pile, and enhancing practicality.

[0005] However, the mounting plate in this device has a small contact area with the ground, and the angle between the mounting plate and the telescopic cylinder cannot be changed. When adjusted to a certain state, the mounting plate cannot remain parallel to the ground, which directly affects the support capacity of the mounting plate. Furthermore, the telescopic cylinder and the diagonal rod in this device are positioned by positioning bolts, so the extension distance between the telescopic cylinder and the diagonal rod can only be adjusted between certain numerical nodes, and more precise extension and retraction adjustments cannot be made. Utility Model Content

[0006] (a) Technical problems to be solved

[0007] To address the shortcomings of existing technologies, this utility model provides a pile-anchor support structure for foundation pits in water-rich strata, thus solving the aforementioned technical problems.

[0008] (II) Technical Solution

[0009] To achieve the above objectives, this utility model provides the following technical solution: a pile-anchor support structure for foundation pits in water-rich strata, comprising a support plate and anchor rods connected to the support plate. Two fixing blocks are protruding on the side of the support plate away from the anchor rods. Two symmetrical guide rods are connected between the two fixing blocks. A lead screw is provided between the two guide rods. One end of the lead screw passes through the fixing block and is connected to a first handwheel. The same transmission slider is slidably installed on the two guide rods. The transmission slider is threadedly connected to the lead screw. Two symmetrical connecting rods are rotatably installed on the transmission slider. An installation block is rotatably installed on the other end of the two connecting rods. Two sleeves are protruding on the installation block. Telescopic rods are slidably arranged inside the sleeves. The other ends of the two telescopic rods are rotatably installed on the support plate. An adjustment mechanism for adjusting the telescopic rods is provided inside the sleeves and the installation block. A support plate is hinged to the bottom of the installation block through a hinge. Multiple ground nails are protruding from the bottom of the support plate.

[0010] Preferably, the plurality of ground spikes are arranged in a matrix at the bottom of the support plate.

[0011] Preferably, the adjusting mechanism includes a transmission cavity opened in the mounting block and a threaded rod rotatably installed in the sleeve. One end of the threaded rod extends into the transmission cavity and is provided with a first bevel gear. A rotating shaft is rotatably installed in the transmission cavity, and two second bevel gears that mesh with the first bevel gear are provided on the rotating shaft. A threaded hole adapted to the threaded rod is opened on the telescopic rod.

[0012] Preferably, one end of the rotating shaft passes through the mounting block and extends to the outside, and a second handwheel is installed at the end of the rotating shaft that extends to the outside.

[0013] Preferably, the mounting block has two mounting seats protruding from it, and the two connecting rods are rotatably mounted on the two mounting seats respectively.

[0014] Preferably, the support plate is provided with two symmetrical connectors, and the ends of the two telescopic rods away from the sleeve are respectively rotatably mounted on the two connectors.

[0015] Preferably, the inner diameter of the sleeve cavity is adapted to the outer diameter of the telescopic rod.

[0016] Compared with the prior art, this utility model provides a pile anchor support structure for foundation pits in water-rich strata, which has the following beneficial effects: By setting the hinge and support plate, this utility model can adaptively adjust the angle of the bottom surface with different slopes when the support plate is in contact with the ground. In addition, due to the multiple ground nails set at the bottom of the support plate, when the ground is relatively soft, the ground nails can be anchored into the bottom surface to increase the contact area with the ground, thereby improving the support capacity. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0018] Figure 2 This is a cross-sectional structural diagram of the second bevel gear and rotating shaft of this utility model;

[0019] Figure 3 This is a cross-sectional structural diagram of the rotating shaft and lead screw of this utility model;

[0020] Figure 4 This is a cross-sectional structural diagram of the telescopic rod and sleeve of this utility model.

[0021] The components are as follows: 1. Support plate; 2. Anchor bolt; 3. Fixing block; 4. Guide rod; 5. Screw rod; 6. First handwheel; 7. Transmission slider; 8. Connecting rod; 9. Mounting block; 10. Hinge; 11. Support plate; 12. Second handwheel; 13. Mounting seat; 14. Sleeve; 15. Connecting piece; 16. First bevel gear; 17. Second bevel gear; 18. Shaft; 19. Telescopic rod; 20. Threaded rod; 21. Ground nail; 22. Threaded hole; 23. Transmission cavity. Detailed Implementation

[0022] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0023] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and 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 be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] Please see Figure 1-4A pile-anchor support structure for foundation pits in water-rich strata includes a support plate 1 and anchor rods 2 connected to the support plate 1. Two fixing blocks 3 are protruding on the side of the support plate 1 away from the anchor rods 2. Two symmetrical guide rods 4 are connected between the two fixing blocks 3. A screw rod 5 is provided between the two guide rods 4. One end of the screw rod 5 passes through the fixing block 3 and is connected to a first handwheel 6. The same transmission slider 7 is slidably installed on the two guide rods 4. The transmission slider 7 is threadedly connected to the screw rod 5. Two symmetrical connecting rods 8 are rotatably installed on the transmission slider 7. An installation block 9 is rotatably installed on the other end of the two connecting rods 8. Two sleeves 14 are protruding on the installation block 9. Telescopic rods 19 are slidably arranged inside the sleeves 14. The other ends of the two telescopic rods 19 are rotatably installed on the support plate 1. An adjustment mechanism for adjusting the extension and retraction of the telescopic rods 19 is provided inside the sleeves 14 and the installation block 9. A support plate 11 is hinged to the bottom of the installation block 9 through a hinge 10. Multiple ground nails 21 are protruding from the bottom of the support plate 11.

[0026] With the hinge 10 and support plate 11 in place, the support plate 11 can adaptively adjust its angle to accommodate different slopes when in contact with the ground. Furthermore, the multiple ground nails 21 at the bottom of the support plate 11 can increase the contact area with the ground when the ground is soft, thus improving the support capacity. When using the device, one end of the anchor rod 2 can be connected to the support plate 1, and the support plate 1 can be placed vertically and aligned with the pit. Simultaneously, one end of the anchor rod 2 can be inserted into the slope. The telescopic length between the sleeve 14 and the telescopic rod 19 can be adjusted via the adjustment mechanism, and the transmission slider 7 can be vertically raised and lowered by rotating the screw 5. This, in turn, pushes the mounting block 9 to a suitable position via the connecting rod 8 on the transmission slider 7, allowing the hinged support plate 11 on the mounting block 9 to make more complete contact with the ground, thereby ensuring the support capacity of the support plate 1 and the connection strength between the anchor rod 2 and the support pile.

[0027] Specifically, in this embodiment, multiple ground nails 21 are arranged in a matrix at the bottom of the support plate 11, which can effectively ensure the friction between the support plate 11 and the ground.

[0028] Specifically, in this embodiment, the adjustment mechanism includes a transmission cavity 23 opened in the mounting block 9 and a threaded rod 20 rotatably installed in the sleeve 14. One end of the threaded rod 20 extends into the transmission cavity 23 and is provided with a first bevel gear 16. A rotating shaft 18 is rotatably installed in the transmission cavity 23. Two second bevel gears 17 that mesh with the first bevel gear 16 are provided on the rotating shaft 18. A threaded hole 22 adapted to the threaded rod 20 is opened on the telescopic rod 19. One end of the rotating shaft 18 passes through the mounting block 9 and extends to the outside. A second handwheel 12 is installed at the end of the rotating shaft 18 that extends to the outside.

[0029] The rotating shaft 18 can be driven to rotate by rotating the second handwheel 12. When the rotating shaft 18 rotates, the two second bevel gears 17 on the rotating shaft 18 can drive the two first bevel gears 16 to rotate, thereby causing the two threaded rods 20 to rotate. At this time, the telescopic rod 19 can be moved axially along the sleeve 14 through the threaded screwing relationship, so as to achieve more precise telescopic adjustment.

[0030] Specifically, in this embodiment, the mounting block 9 is provided with two mounting seats 13, and the two connecting rods 8 are respectively rotatably mounted on the two mounting seats 13.

[0031] The mounting base 13 provides a convenient way for the connecting rod 8 to rotate along the mounting base 13.

[0032] Specifically, in this embodiment, the support plate 1 is provided with two symmetrical connectors 15, and the ends of the two telescopic rods 19 away from the sleeve 14 are respectively rotatably installed on the two connectors 15, which makes it easy for the telescopic rods 19 to rotate a certain angle along the connectors 15.

[0033] Specifically, in this embodiment, the inner diameter of the sleeve 14 is adapted to the outer diameter of the telescopic rod 19.

[0034] 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 water-rich stratum foundation pit pile anchor support structure comprising a support plate and an anchor rod connected to the support plate, characterized in that: Two fixing blocks protrude from the side of the support plate away from the anchor bolt. Two symmetrical guide rods are connected between the two fixing blocks. A lead screw is installed between the two guide rods. One end of the lead screw passes through the fixing block and is connected to a first handwheel. The same transmission slider is slidably installed on the two guide rods. The transmission slider is threadedly connected to the lead screw. Two symmetrical connecting rods are rotatably installed on the transmission slider. An installation block is rotatably installed at the other end of the two connecting rods. Two sleeves protrude from the installation block. Telescopic rods are slidably arranged inside the sleeves. The other ends of the two telescopic rods are rotatably installed on the support plate. An adjustment mechanism for adjusting the telescopic rods is provided inside the sleeves and the installation block. A support plate is hinged to the bottom of the installation block through a hinge. Multiple ground nails protrude from the bottom of the support plate.

2. The water-rich stratum foundation pit pile anchor support structure according to claim 1, characterized in that: Multiple ground spikes are arranged in a matrix at the bottom of the support plate.

3. The water-rich stratum foundation pit pile anchor support structure according to claim 1, characterized in that: The adjustment mechanism includes a transmission cavity opened in the mounting block and a threaded rod rotatably installed in the sleeve. One end of the threaded rod extends into the transmission cavity and is provided with a first bevel gear. A rotating shaft is rotatably installed in the transmission cavity. Two second bevel gears that mesh with the first bevel gear are provided on the rotating shaft. A threaded hole adapted to the threaded rod is opened on the telescopic rod.

4. The water-rich stratum foundation pit pile anchor support structure according to claim 3, characterized in that: One end of the rotating shaft passes through the mounting block and extends to the outside, and a second handwheel is installed at the end of the rotating shaft that extends to the outside.

5. The water-rich stratum foundation pit pile anchor support structure according to claim 1, characterized in that: The mounting block has two protruding mounting seats, and the two connecting rods are rotatably mounted on the two mounting seats respectively.

6. The water-rich formation pit pile anchor support structure according to claim 1, characterized in that: The support plate is provided with two symmetrical connectors, and the ends of the two telescopic rods away from the sleeve are respectively rotatably installed on the two connectors.

7. The water-rich formation pit pile anchor support structure according to claim 1, characterized in that: The inner diameter of the sleeve cavity is adapted to the outer diameter of the telescopic rod.

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