Stable control structure of foundation pit support precast pile

Abstract

The utility model discloses a stable control structure of a foundation pit support precast pile, and relates to the technical field of foundation pit support. The anti-seismic precast pile comprises a precast pile body, the bottom end of the precast pile body is movably sleeved with a pile base, an anti-seismic buffering assembly is arranged between the bottom end of the precast pile body and the inner wall of the pile base, and a positioning mechanism used for limiting the relative position of the precast pile body and the pile base is arranged on the surface of the precast pile body. The outer portion of the precast pile body is sleeved with a protection assembly, the anti-seismic buffering assembly comprises a supporting column, the supporting column is hinged to the bottom end of the precast pile body, the bottom end of the supporting column is rotationally connected with a connecting rod, the inner wall of the pile base is fixedly connected with a guide rod, and the guide rod is slidably connected with the connecting rod. During use, the effect of effectively buffering and damping the precast pile for foundation pit support is achieved, so that stable control over the precast pile is achieved, and the foundation pit support effect is also guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of foundation pit retaining, in particular to a stable control structure for precast piles of foundation pit retaining. Background Technique

[0002] The precast pile for foundation pit retaining is a retaining structure widely used in foundation pit engineering. There are various types of precast piles, including precast pipe piles, precast rectangular piles, I-shaped piles, U-shaped precast piles, precast square piles, and semi-circular precast piles, etc. It is mainly used to provide lateral support and stability to prevent the collapse of the soil around the foundation pit.

[0003] The existing precast pile is an integral structure. When encountering ground vibration during construction, it is difficult to buffer the vibration, which may cause the precast pile to shift, thereby affecting its foundation pit retaining effect.

[0004] Therefore, a stable control structure for precast piles of foundation pit retaining is proposed. Content of the Utility Model

[0005] The purpose of the utility model is to provide a stable control structure for precast piles of foundation pit retaining to solve the problems mentioned in the above background technique.

[0006] The utility model specifically adopts the following technical solutions to achieve the above purpose:

[0007] A stable control structure for precast piles of foundation pit retaining includes a precast pile main body. A pile seat is movably sleeved at the bottom end of the precast pile main body. An earthquake-resistant buffer assembly is arranged between the bottom end of the precast pile main body and the inner wall of the pile seat. A positioning mechanism for limiting the relative position of the precast pile main body and the pile seat is arranged on the surface of the precast pile main body. A protective assembly is sleeved outside the precast pile main body.

[0008] Further, the earthquake-resistant buffer assembly includes a support column, and the support column is hinged to the bottom end of the precast pile main body. The bottom end of the support column is rotatably connected with a connecting rod. A guide rod is fixedly connected to the inner wall of the pile seat, and the guide rod is slidably connected with the connecting rod. A spring is fixedly connected to the inner wall of the pile seat, and the free end of the spring is fixedly connected with the connecting rod. A damping rod is hinged to the bottom of the inner wall of the pile seat, and the end of the damping rod is hinged to the connecting rod.

[0009] Further, the positioning mechanism includes a double-headed screw, and both ends of the double-headed screw are rotatably connected to the inner wall of the precast pile main body. Two insertion blocks are threadedly connected to the surface of the double-headed screw. A sliding column is fixedly connected to the inner wall of the precast pile main body, and the sliding column is slidably connected with the insertion blocks. Slots are formed in the inner wall of the pile seat, and the inner walls of the slots are movably inserted with the ends of the insertion blocks. The positioning mechanism further includes an adjusting assembly for controlling the rotation of the double-headed screw.

[0010] Furthermore, the adjusting component includes a worm, and the worm is rotatably connected to the precast pile body. A joint is fixedly connected to the top end of the worm, and a worm gear is fixedly sleeved in the middle of the double-headed screw, and the worm gear meshes with the worm.

[0011] Furthermore, the protection component includes a flange, and the flange is fixedly connected to the surface of the precast pile body. A retaining piece is fixedly sleeved on the surface of the flange, and the inner wall of the retaining piece is slidably connected to the surface of the pile seat.

[0012] Furthermore, the top of the joint is lower than the top of the precast pile body, and a receiving groove is formed in the top surface of the precast pile body, and the joint is located inside the receiving groove.

[0013] The beneficial effects of the present utility model are as follows:

[0014] Before ramming and installing the precast pile body, first use the positioning mechanism to lock the precast pile body and the pile seat, so that the precast pile body and the pile seat cannot move relative to each other. Then use the equipment to ram, and install the precast pile body and the pile seat into the preset depth in the soil. After the installation is completed, unlock the precast pile body and the pile seat through the positioning mechanism. When vibration occurs, the precast pile body will slide along the inner wall of the pile seat. At this time, the seismic buffer component can buffer and damp the bottom of the precast pile body, achieving the effect of effectively buffering and damping the precast pile for foundation pit enclosure during use, thereby realizing the stable control of the precast pile and ensuring the foundation pit enclosure effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0016] Figure 2 is a front sectional view of the structure of the present utility model;

[0017] Figure 3 is a structural schematic diagram of the seismic buffer component of the present utility model;

[0018] Figure 4 is a structural schematic diagram of the positioning mechanism of the present utility model;

[0019] Reference numerals: 1, precast pile body; 2, pile seat; 3, seismic buffer component; 301, support column; 302, connecting rod; 303, guide rod; 304, spring; 305, damping rod; 4, positioning mechanism; 401, double-headed screw; 402, insertion block; 403, sliding column; 404, insertion slot; 405, worm; 406, joint; 407, worm gear; 5, protection component; 501, flange; 502, retaining piece; 6, receiving groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. The components of the embodiments of the present utility model usually described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the claimed present utility model, but merely represents selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts fall within the scope of protection of the present utility model.

[0022] It should be noted that: similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. In addition, the terms "first", "second", etc. are only used for descriptive distinction and cannot be understood as indicating or implying relative importance.

[0023] In the description of the embodiments of the present utility model, it should be noted that the orientation or positional relationship indicated by terms such as "inside", "outside", "above", etc. is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed during use. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model.

[0024] As Figures 1 to 4 shown, a stability control structure for a precast pile for foundation pit enclosure includes a precast pile main body 1. A pile seat 2 is movably sleeved at the bottom end of the precast pile main body 1. An earthquake-resistant buffer assembly 3 is arranged between the bottom end of the precast pile main body 1 and the inner wall of the pile seat 2. A positioning mechanism 4 for limiting the relative position between the precast pile main body 1 and the pile seat 2 is arranged on the surface of the precast pile main body 1. A protective assembly 5 is sleeved outside the precast pile main body 1. More specifically, before ramming and installing the precast pile main body 1, first use the positioning mechanism 4 to lock the precast pile main body 1 and the pile seat 2, so that the precast pile main body 1 and the pile seat 2 cannot move relative to each other. Then use equipment to ram and install the precast pile main body 1 and the pile seat 2 into a preset depth in the soil. After installation, unlock the precast pile main body 1 and the pile seat 2 through the positioning mechanism 4. When vibration occurs, the precast pile main body 1 will slide along the inner wall of the pile seat 2. At this time, the earthquake-resistant buffer assembly 3 can buffer and damp the bottom of the precast pile main body 1.

[0025] The seismic buffer assembly 3 includes a support column 301, and the support column 301 is hinged to the bottom end of the precast pile body 1. A connecting rod 302 is rotatably connected to the bottom end of the support column 301. A guide rod 303 is fixedly connected to the inner wall of the pile seat 2, and the guide rod 303 is slidably connected to the connecting rod 302. A spring 304 is fixedly connected to the inner wall of the pile seat 2, and the free end of the spring 304 is fixedly connected to the connecting rod 302. A damping rod 305 is hinged to the bottom of the inner wall of the pile seat 2, and the end of the damping rod 305 is hinged to the connecting rod 302. It should be noted that when vibration occurs, the precast pile body 1 will slide along the inner wall of the pile seat 2, thereby driving the support column 301 to rotate. The support column 301 will push the connecting rod 302 to slide along the surface of the guide rod 303, and at the same time drive the guide rod 303 to undergo elastic deformation, using the guide rod 303 to absorb part of the energy. At the same time, the damping rod 305 will exert a damping effect on the movement of the connecting rod 302, further achieving a buffering effect and also avoiding the situation where the guide rod 303 rebounds and vibrates reciprocally. Therefore, the precast pile body 1 can be buffered and shock-absorbed.

[0026] The positioning mechanism 4 includes a double-headed screw 401, and both ends of the double-headed screw 401 are rotatably connected to the inner wall of the precast pile body 1. Two insertion blocks 402 are threadedly connected to the surface of the double-headed screw 401. A sliding column 403 is fixedly connected to the inner wall of the precast pile body 1, and the sliding column 403 is slidably connected to the insertion block 402. A slot 404 is opened in the inner wall of the pile seat 2, and the inner wall of the slot 404 is movably inserted with the end of the insertion block 402. The positioning mechanism 4 further includes an adjustment assembly for controlling the rotation of the double-headed screw 401. More specifically, before the precast pile body 1 is tamped and installed, the double-headed screw 401 is controlled to rotate through the adjustment assembly. Under the action of the thread, the insertion block 402 is controlled to slide along the surface of the sliding column 403, so that the end of the insertion block 402 is inserted into the inner wall of the slot 404, so that the precast pile body 1 and the pile seat 2 cannot move relatively. After the precast pile body 1 is tamped and installed in place, the double-headed screw 401 is controlled to rotate in the reverse direction through the adjustment assembly, so that the end of the insertion block 402 is separated from the inner wall of the slot 404, and the limit on the precast pile body 1 and the pile seat 2 can be released. Then, the seismic buffer assembly 3 can be used to buffer and shock-absorb the precast pile body 1.

[0027] The adjustment assembly includes a worm 405, and the worm 405 is rotatably connected to the precast pile body 1. A joint 406 is fixedly connected to the top end of the worm 405. A worm gear 407 is fixedly sleeved on the middle of the double-headed screw 401, and the worm gear 407 is meshed with the worm 405. It should be noted that by connecting the joint 406 with a tool, the worm 405 can be controlled to rotate. The worm 405 will drive the worm gear 407 meshed with it to rotate, thereby controlling the rotation of the double-headed screw 401. At the same time, the worm 405 and the worm gear 407 have a self-locking function, avoiding the self-rotation of the double-headed screw 401 during the process of tamping the precast pile body 1.

[0028] The protective component 5 includes a flange 501, and the flange 501 is fixedly connected to the surface of the precast pile body 1. A retaining piece 502 is fixedly sleeved on the surface of the flange 501, and the inner wall of the retaining piece 502 is slidably connected to the surface of the pile seat 2. More specifically, the contact position between the precast pile body 1 and the pile seat 2 is protected by the cooperation of the flange 501 and the retaining piece 502, reducing the entry of soil and the like into the interior of the pile seat 2 during the ramming installation of the precast pile.

[0029] The top of the joint 406 is lower than the top of the precast pile body 1. A receiving groove 6 is formed in the top surface of the precast pile body 1, and the joint 406 is located inside the receiving groove 6. It should be noted that by arranging the joint 406 inside the receiving groove 6, the accommodation and protection of the joint 406 are realized, avoiding the influence on the top of the ramming precast pile body 1.

[0030] In summary: Before ramming and installing the precast pile body 1, first use the positioning mechanism 4 to lock the precast pile body 1 and the pile seat 2, so that the precast pile body 1 and the pile seat 2 cannot move relative to each other. Then use the equipment to ram, and install the precast pile body 1 and the pile seat 2 into the preset depth in the soil. After the installation is completed, unlock the precast pile body 1 and the pile seat 2 through the positioning mechanism 4. When vibration occurs, the precast pile body 1 will slide along the inner wall of the pile seat 2. At this time, the seismic buffer component 3 can buffer and damp the bottom of the precast pile body 1, achieving the effect of effectively buffering and shock-absorbing the precast pile for foundation pit enclosure during use, thus realizing the stable control of the precast pile and ensuring the foundation pit enclosure effect.

[0031] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification is only the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A stability control structure for precast piles for foundation pit protection, characterized in that: The invention comprises a precast pile body (1), the bottom end of the precast pile body (1) is movably sleeved with a pile seat (2), an anti-seismic buffer component (3) is arranged between the bottom end of the precast pile body (1) and the inner wall of the pile seat (2), a positioning mechanism (4) for limiting the relative position of the precast pile body (1) and the pile seat (2) is arranged on the surface of the precast pile body (1), and a protective component (5) is sleeved on the outside of the precast pile body (1).

2. The stability control structure of the precast piles for foundation pit protection according to claim 1 is characterized in that: The anti-seismic buffer assembly (3) comprises a support column (301), and the support column (301) is hinged to the bottom end of the prefabricated pile body (1), the bottom end of the support column (301) is rotatably connected to a connecting rod (302), the inner wall of the pile seat (2) is fixedly connected to a guide rod (303), and the guide rod (303) is slidably connected to the connecting rod (302), the inner wall of the pile seat (2) is fixedly connected to a spring (304), and the free end of the spring (304) is fixedly connected to the connecting rod (302), and a damping rod (305) is hinged to the bottom of the inner wall of the pile seat (2), and the end of the damping rod (305) is hinged to the connecting rod (302).

3. The stability control structure of precast piles for foundation pit protection according to claim 1 is characterized in that: The positioning mechanism (4) comprises a double-headed screw (401), and both ends of the double-headed screw (401) are rotatably connected to the inner wall of the precast pile body (1), and two plug blocks (402) are threadedly connected to the surface of the double-headed screw (401), and a sliding column (403) is fixedly connected to the inner wall of the precast pile body (1), and the sliding column (403) is slidably connected to the plug block (402), and the inner wall of the pile seat (2) is provided with a slot (404), and the inner wall of the slot (404) is movably plugged with the end of the plug block (402), and the positioning mechanism (4) also includes an adjustment component for controlling the rotation of the double-headed screw (401).

4. The stability control structure of the precast piles for foundation pit protection according to claim 3 is characterized in that: The adjusting assembly comprises a worm (405), and the worm (405) is rotatably connected to the precast pile body (1), the top end of the worm (405) is fixedly connected to a joint (406), the middle part of the double-headed screw (401) is fixedly sleeved with a worm wheel (407), and the worm wheel (407) is meshed with the worm (405).

5. The stability control structure of precast piles for foundation pit protection according to claim 1 is characterized in that: The protection component (5) comprises a flange (501), and the flange (501) is fixedly connected to the surface of the prefabricated pile body (1), a baffle (502) is fixedly sleeved on the surface of the flange (501), and the inner wall of the baffle (502) is slidably connected to the surface of the pile seat (2).

6. The stability control structure of precast piles for foundation pit protection according to claim 4 is characterized in that: The top of the joint (406) is lower than the top of the precast pile body (1); a receiving groove (6) is provided on the top surface of the precast pile body (1), and the joint (406) is located inside the receiving groove (6).

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