An assembled supporting body and a foundation pit supporting structure thereof

Abstract

The utility model discloses an assembly type support main part and pit support structure thereof relates to building construction technical field, include: the column, the both ends of column are used for supporting in the both sides of pit, connecting mechanism, it includes the sleeve, the sleeve one end is open, and through the open end with concrete column end portion is set in, and the concrete column is used for vertical in the bottom of pit, another end of sleeve is fixed with the clamp, the clamp includes half ring no.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, specifically to a prefabricated support body and its foundation pit support structure. Background Technology

[0002] Prefabricated deep foundation pit support technology features high overall rigidity, light weight, quick and convenient installation and dismantling, reusability, no construction waste, green energy saving, and provides open construction space, making excavation, soil transportation and underground structure construction convenient. Compared with traditional support, it can reduce costs by more than 20% and shorten the construction period of installation, dismantling, excavation and underground structure construction by more than 40%. The prefabricated foundation pit support system consists of steel supports, columns, steel walers, crossbars, V-braces, corbels, hydraulic jacks, tie rods and nodes, etc. During construction, they are spliced ​​and assembled on site to form an integrated foundation pit support system.

[0003] The commonly used prefabricated foundation pit support structures often only consider the rapid assembly and disassembly between prefabricated structures during the design process, without considering the rapid assembly and disassembly between the prefabricated structure and the concrete support columns. When connecting the prefabricated structure and the concrete columns, steel frames welded on-site are often used to connect the prefabricated structure and the concrete columns. When disassembling the welded steel frame, it is necessary to cut the steel frame, which reduces the utilization rate of the steel frame and makes it impossible to reuse the steel frame. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model aims to provide a prefabricated support body and its foundation pit support structure. By adopting this solution, a detachable connection between the prefabricated structure and the concrete column can be achieved, facilitating quick assembly and disassembly and enabling reuse.

[0005] This utility model is achieved through the following technical solution: A prefabricated support structure includes: A column, the two ends of which are used for support on both sides of the foundation pit; A connecting mechanism includes a sleeve, one end of which is open, and the end of a concrete column is fitted inside the open end, the concrete column being used to stand upright at the bottom of the foundation pit. The other end of the sleeve is fixed with a clamp, which includes a semicircular ring one and a semicircular ring two. The closure of the semicircular ring one and the semicircular ring two is used to clamp the periphery of the column inside.

[0006] Compared to existing technologies where disassembling welded steel frames requires cutting them, reducing their usability and preventing reuse, this invention provides a prefabricated support structure. It replaces the original steel frame-to-concrete-column connection with a column-to-concrete-column connection, enabling detachable connection, quick assembly and disassembly, and reuse. Specifically, the structure includes a column and a connecting mechanism. The column's two ends support the pit sidewalls. The connecting mechanism connects the column and the concrete column. The connecting mechanism includes a clamp, one end open and the other closed, with a clamp fixed at the other end. By engaging semicircular rings one and two, the column's circumferential sidewalls are fitted inside. The clamp can slide laterally to adjust its position, positioning the lower concrete column. After adjustment, the bolts are tightened. The lower column then enters the lower open end of the clamp, achieving a detachable connection and quick assembly / disassembly between the column and the concrete column.

[0007] To further optimize the design and prevent the column from sliding relative to the connecting mechanism, a connecting plate is provided inside the sleeve. One side of the connecting plate has several abutment rods, and all of the abutment rods slide through the other end of the sleeve. The end of each abutment rod that slides through has a rubber pad that can abut against the side wall of the column. A fall arresting ring is fixedly fitted onto the part of the abutment rod that slides through.

[0008] To further optimize the connection mechanism and ensure the sleeve is tightly secured to the concrete column, a compression filler is included. The circumferential sidewall of the sleeve has several notches sequentially formed. The compression filler is used to engage with these notches and extends into the sleeve. The compression filler may have flexible layers on both sides, with the distance between the two sides greater than the width of the notches. This increases the clamping force of the compression filler at the notches. Through the circumferential compression of the compression filler, the concrete column is secured within.

[0009] To further optimize the design, since the sidewall of the foundation pit is uneven, in order to adjust the support angle of one end of the column, or to provide inclined support when concrete columns are not used, one end of the column is equipped with an inclined support head, which includes a fixed seat and a support plate. A ball head seat is fixed to one side of the support plate. A ball head is rotatably connected inside the ball head seat. The side wall of the ball head facing the opening of the ball head seat is fixedly connected to one end of the rod. The other end of the rod is connected to the fixed seat. The fixed seat is located at one end of the column.

[0010] To further optimize the system and enable detachable connection of the support plate, the fixed base has an axially formed mounting hole, and an internal threaded sleeve is coaxially arranged inside the mounting hole; the rod is a threaded rod, which is used to connect with the internal threaded sleeve by threads.

[0011] To further optimize the system and enable fine-tuning of the support length of the column, and to achieve a quick connection between the support plate and the column, the mounting hole is coaxially rotatably connected to the internal threaded sleeve via a bearing. A motor is provided at the bottom of the mounting hole. The output end of the motor is connected to the inner end of the internal threaded sleeve and is used to drive the internal threaded sleeve to rotate around its own axis.

[0012] To further optimize the design and enable a detachable connection, the inclined support head also includes flange one, flange two, and support body one. One side of the flange is connected to a flange fixed on one end of the column by bolts; The flange second is welded to one side of the flange first, and the other side of the flange second is connected to one side of the support body first by bolts; The other side of the support is fixedly connected to the fixed seat.

[0013] Further optimization involves an inclined support tail at the other end of the column to adjust the support angle or provide tilt support when concrete columns are not used, given the unevenness of the pit sidewalls. This inclined support tail includes a second support body and a mounting plate. One side of the second support body is bolted to the flange at the other end of the column via a third flange. The other side of the second support body has two opposing connecting lugs, with a pin rotatably positioned between them. One end of the mounting plate is fixed to the pin, and the mounting plate has several bolt holes. The mounting plate can be anchored to the pit sidewall or bottom via threaded holes.

[0014] To further optimize the system and improve its support strength, the inclined support tail also includes a trapezoidal frame with several reinforcing plates on its inner wall; the mounting plate is fixed to the trapezoidal frame, and the end of the trapezoidal frame is fixed to the pin.

[0015] Further options: This utility model also provides a prefabricated foundation pit support structure, including several of the prefabricated support bodies described above.

[0016] Compared with the prior art, this utility model has the following advantages and beneficial effects: 1. The present invention provides a prefabricated support body and its foundation pit support structure, which connects the column and the concrete column by fitting a sleeve on the end of the concrete column and fitting semi-circular ring one and semi-circular ring two on the column body; when separating the column and the concrete column, it is only necessary to remove the bolts connecting semi-circular ring one and semi-circular ring two. The entire connection mechanism can be reused and can be quickly disassembled and assembled. 2. The prefabricated support body and its foundation pit support structure provided by this utility model will push the connecting plate upward after the end of the concrete column is inserted into the sleeve, thereby causing the abutment rod to move upward and press the rubber pad tightly on the column, preventing the column from sliding relative to the connecting mechanism, that is, preventing the column from sliding relative to the concrete column, thus making the connection effect between the column and the concrete column better. 3. The present invention provides a prefabricated support body and its foundation pit support structure, wherein the gap between the concrete column and the inner wall of the sleeve is filled with compression filler so that the sleeve can be tightly fitted onto the concrete column, and a notch is provided for filling the gap between the sleeve and the concrete column with compression filler. 4. The present invention provides a prefabricated support body and its foundation pit support structure, wherein inclined support head and inclined support tail are respectively provided at both ends of the body. By adjusting the angle of their respective support surfaces, it can adapt to the non-planarity of the foundation pit sidewall and improve the application scenarios. In addition, when only inclined support is needed for the foundation pit and concrete columns are not required, the inclined support tail can be supported on the bottom surface of the foundation pit, and the inclined support head can be supported on the sidewall of the foundation pit to achieve inclined support. Attached Figure Description

[0017] The accompanying drawings, which are included to provide a further understanding of the embodiments of the present invention and form part of this application, do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the connection mechanism of this utility model; Figure 3 This is a schematic diagram of the connecting disc and the abutment rod of this utility model; Figure 4 This is a schematic diagram of the inclined support head of this utility model; Figure 5 This is a schematic diagram of the inclined support tail section of this utility model.

[0018] The attached diagram shows the markings and corresponding component names: 1. Column; 2. Concrete column; 3. Connecting mechanism; 4. Inclined support head; 5. Inclined support tail; 6. Notch; 7. Compactor packing; 8. Anti-fall ring; 9. Motor; 10. Reinforcing plate; 301. Compression sleeve; 302. Semicircular ring one; 303. Semicircular ring two; 304. Connecting disc; 305. Abutment rod; 306. Rubber pad; 401. Flange one; 402. Flange two; 403. Support body one; 404. Fixing seat; 405. Internal threaded sleeve; 406. Support plate; 407. Ball head seat; 408. Ball head; 409. Rod; 501. Flange three; 502. Support body two; 503. Trapezoidal frame; 504. Pin; 505. Mounting plate. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. The illustrative embodiments and descriptions of this utility model are only used to explain this utility model and are not intended to limit this utility model.

[0020] Example 1: This embodiment 1 provides a prefabricated support structure. Please refer to [link / reference]. Figures 1-5 ,include: The column 1 and the concrete column 2 are connected by a connecting mechanism 3. The right end of the column 1 is provided with an inclined support head 4, and the left end of the column 1 is provided with an inclined support tail 5.

[0021] The connecting mechanism 3 includes a sleeve 301 and a second semicircular ring 303. The sleeve 301 is movably fitted onto the end of the concrete column 2. A first semicircular ring 302 is fixedly installed on the top of the sleeve 301. The first semicircular ring 302 and the second semicircular ring 303 are slidably fitted onto the column 1. The first semicircular ring 302 and the second semicircular ring 303 are connected by bolts. A connecting plate 304 is slidably provided on the inner wall of the sleeve 301. An abutment rod 305 is fixedly installed on the top of the connecting plate 304. The top of the abutment rod 305 movably passes through the top of the sleeve 301. A rubber pad 306 is fixedly installed on the top of the abutment rod 305. The rubber pad 306 presses against the column 1. By fitting the sleeve 301 onto the concrete column 2, the connection mechanism 3 achieves the desired connection. The end of column 2, and the semicircular ring 302 and semicircular ring 303 are fitted onto column 1, connecting column 1 and concrete column 2 together. When separating column 1 and concrete column 2, simply remove the bolts connecting semicircular ring 302 and semicircular ring 303. The entire connecting mechanism 3 can be reused. After the end of concrete column 2 is inserted into the sleeve 301, it will push the connecting plate 304 upward, thereby causing the abutment rod 305 to move upward, pressing the rubber pad 306 tightly onto column 1, preventing column 1 from sliding relative to the connecting mechanism 3, that is, preventing column 1 from sliding relative to concrete column 2, thus making the connection effect between column 1 and concrete column 2 better.

[0022] There are two abutment rods 305, which are symmetrically distributed about the semicircular ring 302. The outer wall of the abutment rod 305 is fixedly fitted with a fall stop ring 8. The fall stop ring 8 can prevent the abutment rods 305 from falling down and causing the connecting plate 304 to fall out of the sleeve 301.

[0023] The outer wall of the sleeve 301 has a notch 6, and the inner wall of the notch 6 is fitted with a compression filler 7. The compression filler 7 is pressed onto the concrete column 2. Filling the gap between the concrete column 2 and the inner wall of the sleeve 301 with the compression filler 7 can make the sleeve 301 tightly fit onto the concrete column 2. The notch 6 is provided to fill the gap between the sleeve 301 and the concrete column 2 with the compression filler 7.

[0024] The inclined support head 4 includes a flange 401 and a support plate 406. Flange 401 is fixedly connected to the left end of column 1 by bolts. A flange 402 is welded to the left end of flange 401. A support body 403 is fixedly installed to the left end of flange 402 by bolts. A fixing seat 404 is fixedly installed to the left end of support body 403. An internal threaded sleeve 405 is rotatably connected to the inner wall of fixing seat 404 via a bearing. A ball head seat 407 is fixedly installed to the right outer wall of support plate 406. A ball head 408 is provided on the inner wall of ball head seat 407. A rod is fixedly installed to the outer wall of ball head 408. The rod is a threaded rod, and its right end is connected to the internal thread of the internal threaded sleeve 405. This connects flange 401 and flange 406. 2. Welded together, it is used to connect the support body 403 and the column 1, so that the support body 403 and the column 1 are detachable. The support plate 406 and the internal threaded sleeve 405 are connected by the ball head seat 407, ball head 408 and threaded rod, so that the support plate 406 can be separated from the internal threaded sleeve 405. The ball head seat 407 and ball head 408 allow the support plate 406 to be adjusted at a certain angle when the foundation pit is tilted. The motor 9 is fixedly installed on the inner side of the support body 403. The output end of the motor 9 is fixedly connected to the right end of the internal threaded sleeve 405. The motor 9 drives the internal threaded sleeve 405 to rotate, which is used to connect the threaded rod and the internal threaded sleeve 405, and to separate the threaded rod from the internal threaded sleeve 405, and to finely adjust the length of the column 1.

[0025] The inclined support tail section 5 includes a flange 3 501 and a trapezoidal frame 503. The flange 3 501 is fixedly connected to the right end of the column 1 by bolts. The support body 2 502 is fixedly installed on the outer right side of the flange 3 501. A pin 504 is fixedly installed on the trapezoidal frame 503. The front and rear ends of the pin 504 are engaged in the slots on the support body 2 502. An installation plate 505 is fixedly installed on the outer wall of the trapezoidal frame 503. A reinforcing plate 10 is fixedly installed on the inner wall of the trapezoidal frame 503. The support body 2 502 is connected to the column 1 through the flange 3 501, so that the support body 2 502 and the column 1 are detachable. The trapezoidal frame 503 and the support body 2 502 are connected through the pin 504, so that the support body 2 502 can rotate relative to the trapezoidal frame 503. That is, when providing inclined support for the foundation pit, the inclination angle of the column 1 relative to the foundation pit can be adjusted according to the usage, ensuring that the entire prefabricated foundation pit support structure can provide effective support for the foundation pit.

[0026] Example 2: This embodiment 2 further optimizes upon embodiment 1 and provides a prefabricated foundation pit support structure, comprising several prefabricated support main bodies. The foundation pit is supported by these prefabricated support main bodies.

[0027] Working principle: When only inclined support is needed for the foundation pit, such as for small-scale foundation pit support, there is no need to set up concrete columns 2. Place the trapezoidal frame 503 at the bottom of the foundation pit, use bolts to fix the mounting plate 505 to the foundation pit, rotate the column 1 and adjust the orientation of the column 1 so that the inclined support head 4 at the left end of the column 1 can contact the inner wall of the side of the foundation pit to support the foundation pit.

[0028] When performing large-scale foundation pit support, multiple columns 1 need to be assembled together, and then concrete columns 2 are used to support the columns 1. Semicircular rings 1 (302) and 2 (303) are fitted onto the columns 1 and secured with bolts. Sliding semicircular ring 1 (302) moves the clamping sleeve 301, aligning it with the concrete column 2. The columns 1 are then hoisted from top to bottom, so that the clamping sleeve 301 is fitted onto the end of the concrete column 2. The end of the concrete column 2 pushes the connecting plate 304, causing the connecting plate 304 to move upward relative to the clamp 301, which in turn causes the abutment rod 305 to move upward relative to the clamp 301, pressing the rubber pad 306 tightly onto the column body 1, thus completing the connection between the column body 1 and the concrete column 2. When disassembling the column body 1, simply remove the bolts connecting the first semicircular ring 302 and the second semicircular ring 303, and then remove the column body 1 from the first semicircular ring 302, so that the clamp 301 can be removed from the end of the concrete column 2.

[0029] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above description is only a specific embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A prefabricated support structure, characterized in that, include: Column (1), the two ends of which are used for support on both sides of the foundation pit; The connecting mechanism (3) includes a sleeve (301), one end of which is open, and the end of the concrete column (2) is fitted inside the open end, the concrete column (2) being used to stand upright at the bottom of the pit. The other end of the sleeve (301) is fixed with a clamp, which includes a semicircular ring one (302) and a semicircular ring two (303). The closure of the semicircular ring one (302) and the semicircular ring two (303) is used to clamp the periphery of the column (1) inside.

2. The prefabricated support body according to claim 1, characterized in that, The sleeve (301) is provided with a connecting plate (304) inside. One side of the connecting plate (304) is provided with several abutting rods (305). Several abutting rods (305) slide through the other end of the sleeve (301). The end of the abutting rod (305) that slides through is provided with a rubber pad (306) that can abut against the side wall of the column (1). A fall arresting ring (8) is fixedly fitted on the part of the abutment rod (305) that slides through.

3. The prefabricated support body according to claim 1, characterized in that, The connecting mechanism (3) further includes a compression packing (7). The circumferential sidewall of the sleeve (301) has a number of notches (6) in sequence. The compression packing (7) is used to be inserted into the notches (6) and extends into the sleeve (301).

4. The prefabricated support body according to claim 1, characterized in that, The column (1) has an inclined support head (4) at one end, and the inclined support head (4) includes a fixed seat (404) and a support plate (406). A ball head seat (407) is fixed on one side of the support plate (406). A ball head (408) is rotatably connected inside the ball head seat (407). The side wall of the ball head (408) facing the opening of the ball head seat (407) is fixedly connected to one end of the rod (409). The other end of the rod (409) is connected to the fixed seat (404). The fixed seat (404) is located at one end of the column (1).

5. A prefabricated support body according to claim 4, characterized in that, The fixed base (404) has an axially opened mounting hole, and an internal threaded sleeve (405) is coaxially arranged in the mounting hole; the rod (409) is a threaded rod, which is used to be threadedly connected to the internal threaded sleeve (405).

6. A prefabricated support body according to claim 5, characterized in that, The mounting hole is coaxially rotatably connected to the bearing and the internal threaded sleeve (405); A motor (9) is provided at the bottom of the mounting hole. The output end of the motor (9) is connected to the inner end of the internal threaded sleeve (405) and is used to drive the internal threaded sleeve (405) to rotate around its own axis.

7. A prefabricated support structure according to any one of claims 4 to 6, characterized in that, The inclined support head (4) also includes flange one (401), flange two (402) and support body one (403). The flange (401) is connected to a flange fixed to one end of the column (1) by bolts on one side; The flange 2 (402) is welded to one side of the flange 1 (401), and the other side of the flange 2 (402) is connected to one side of the support body 1 (403) by bolts; The other side of the support body (403) is fixedly connected to the fixing seat (404).

8. A prefabricated support body according to any one of claims 1 to 6, characterized in that, The other end of the column (1) is also equipped with an inclined support tail (5), which includes a support body two (502) and a mounting plate (505). One side of the support body two (502) is connected to the flange bolt of the other end of the column (1) through a flange three (501). The other side of the support body two (502) is equipped with two oppositely arranged connecting ears, and a pin (504) is rotatably arranged between the two connecting ears. One end of the mounting plate (505) is fixed to the pin (504), and the mounting plate (505) is equipped with several bolt holes.

9. A prefabricated support body according to claim 8, characterized in that, The inclined support tail (5) also includes a trapezoidal frame (503), the inner wall of which has several reinforcing plates (10); the mounting plate (505) is fixed on the trapezoidal frame (503), and the end of the trapezoidal frame (503) is fixed on the pin (504).

10. A prefabricated foundation pit support structure, characterized in that, It includes several prefabricated support bodies as described in any one of claims 1 to 9.

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