Adjustable foundation pit excavation supporting device

Abstract

The utility model relates to the technical field of foundation pit protection, and discloses an adjustable foundation pit excavation supporting device which comprises a supporting frame, the supporting frame comprises a center plate and two side plates, the center plate and the two side plates are matched and combined to form a rectangular frame structure, the right side of the supporting frame is of an open structure, the side plates are in an L shape, and the supporting frame is of a rectangular structure. Telescopic grooves are formed in the front end and the rear end of the center plate, and the two side plates are symmetrically distributed on the front side and the rear side of the center plate. According to the adjustable foundation pit excavation supporting device, in the using process of the supporting frame, the purpose of adjusting the distance between the two side plates can be achieved by rotating the adjusting sleeve and utilizing threaded connection of the threaded column and the adjusting sleeve, and then the effect of supporting and protecting foundation pits with different widths is achieved; the hydraulic rod is controlled to extend to drive the rectangular abutting plate to abut against foundation pit backfill soil, the supporting frame can be driven to move rightwards, and therefore the requirement for adjusting the position of the supporting device according to a foundation pit excavation route is met, and adjustment is convenient and fast.

Description

Technical Field

[0001] This utility model relates to the field of foundation pit protection technology, and more specifically to an adjustable foundation pit excavation support device. Background Technology

[0002] When excavating a foundation pit, a series of support measures are required to ensure the stability of the soil around the pit, prevent soil displacement or collapse caused by excavation, and ensure construction safety. When excavating the bottom side of the foundation pit to a depth, the commonly used foundation pit protection measure is to place a protective frame structure on the inner wall of the foundation pit and use the frame structure to enclose and protect the inner wall of the foundation pit.

[0003] Most of the current protective frames are installed and fixed by welding, and their width is not adjustable, making them unsuitable for foundation pits of different widths. They have poor applicability and are difficult to adjust in position according to changes in the construction route during use, resulting in poor ease of use.

[0004] In view of this, the present invention proposes an adjustable foundation pit excavation support device to solve this problem. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides an adjustable foundation pit excavation support device to solve the problems existing in the background art.

[0006] This utility model provides the following technical solution: an adjustable foundation pit excavation support device, including a support frame, the support frame including a central plate and two side plates, the central plate and the two side plates are adapted to be combined into a rectangular frame structure, and the right side of the support frame is an open structure, the side plates are L-shaped, the front and rear ends of the central plate are provided with expansion grooves, the two side plates are symmetrically distributed on the front and rear sides of the central plate, and the side plates are inserted into the expansion grooves, a spacing adjustment component is provided between the central plate and the side plates, and a backing travel component is provided on the surface of the central plate;

[0007] The spacing adjustment assembly includes a mounting sleeve fixedly installed on the right side of the center plate. An adjustment sleeve is rotatably connected to the inner wall of the mounting sleeve. The two ends of the adjustment sleeve are symmetrically provided with internal thread grooves. Threaded posts are fixedly installed on the inner walls of both side plates, and the threaded posts are adapted to the internal thread grooves.

[0008] The abutment travel assembly includes a hydraulic rod embedded in the surface of the center plate, the telescopic end of the hydraulic rod extending to the left end of the center plate and fixedly mounted with a rectangular abutment plate.

[0009] As a further description of the above technical solution: lifting lugs are welded to the top of both side plates, and the lifting lugs are compatible with the hooks of external lifting equipment; by setting the lifting lugs, it is convenient to lift the entire support frame, and to lift the support frame into or out of the foundation pit.

[0010] As a further description of the above technical solution: A rectangular shielding frame is fixedly installed on the left side of the center plate. The rectangular shielding frame is adapted to the shape of the rectangular abutment plate, and the bottom end of the rectangular shielding frame is open. By setting the rectangular shielding frame, the distance between the rectangular abutment plate and the center plate can be shielded, so as to avoid a large amount of soil seepage when the foundation pit is backfilled, and to avoid obstruction when the hydraulic rod retracts to drive the rectangular abutment plate to reset.

[0011] As a further description of the above technical solution: a limiting slide rod is fixedly installed on the surface of the rectangular abutment plate, the limiting slide rod passes through the center plate and is slidably connected to the center plate; by setting the limiting slide rod, the stability of the movement of the rectangular abutment plate can be ensured.

[0012] As a further description of the above technical solution: guide inclined plates are welded to the bottom right side of both side plates, and the inclined surface of the guide inclined plates faces upward; by setting the guide inclined plates, an upward lifting support effect can be provided for the rightward movement of the support frame when the support frame moves to the right.

[0013] As a further description of the above technical solution: a reinforcing component is provided between the center plate and the two side plates. The reinforcing component includes a rectangular sleeve fixedly installed on the surface of the center plate. Rectangular strips are welded to the adjacent sides of the two side plates, and the rectangular strips are inserted into both ends of the rectangular sleeve.

[0014] As a further description of the above technical solution: The bottom end of the rectangular strip is evenly provided with several positioning holes. Two limiting sleeves are symmetrically fixedly installed at the bottom end of the rectangular sleeve. A pin is slidably connected inside each of the two limiting sleeves, with the pins corresponding to the positions of the positioning holes. A horizontal handle is welded to the bottom end of each pin. A magnet is embedded in the inner wall of the positioning hole, and an iron block is embedded in the top of the pin. When the pin is inserted into the positioning hole, the magnet and the iron block are magnetically attracted. By setting up a reinforcing component, the movement path of the side plate can be restricted by the sliding of the rectangular strip inside the rectangular sleeve. Furthermore, under the magnetic force of the magnet and the iron block, the pin inserts into the inner wall of the positioning hole to position the rectangular strip, thus positioning the spacing of the side plates. When it is necessary to adjust the spacing of the side plates, the pin can be pushed downwards by the horizontal handle to disengage the pin from the positioning hole, releasing the pin's positioning effect on the rectangular strip.

[0015] The technical effects and advantages of this utility model are as follows:

[0016] 1. Compared with existing technologies, this adjustable foundation pit excavation support device uses a central plate and two side plates to form a support frame, achieving the purpose of blocking and protecting the side walls of the foundation pit. The opening on the right side of the support frame facilitates excavation of the inner walls of the foundation pit. During use, the spacing between the two side plates can be adjusted by rotating the adjusting sleeve and connecting it to the threaded column, thus providing support and protection for foundation pits of different widths. Furthermore, during excavation, the extension of the hydraulic rod drives the rectangular abutment plate to abut against the backfill soil, moving the support frame to the right. This allows for convenient adjustment of the support device's position according to the excavation route.

[0017] 2. Compared with existing technologies, this adjustable foundation pit excavation support device, by setting lifting lugs, facilitates the hoisting of the entire support frame, allowing it to be lifted into or out of the foundation pit; by setting a rectangular shielding frame, it can shield the distance between the rectangular support plate and the center plate, preventing excessive soil seepage during backfilling and avoiding obstruction when the hydraulic rod retracts to drive the rectangular support plate to reset; by setting a limiting slide bar, it can ensure the stability of the rectangular support plate's movement; by setting a guide inclined plate, it can provide an upward lifting support effect for the support frame to move to the right; by setting a reinforcement component, the rectangular strip can slide inside the rectangular sleeve, restricting the movement path of the side plates; and under the magnetic force of the magnet and the iron block, the pin is inserted into the inner wall of the positioning hole to position the rectangular strip, thus positioning the distance between the side plates. When it is necessary to adjust the distance between the side plates, the pin can be pushed down by the horizontal handle to disengage the pin from the positioning hole, releasing the pin's positioning effect on the rectangular strip. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural schematic diagram of the present invention from one perspective;

[0019] Figure 2 This is a two-dimensional structural schematic diagram of the present invention from a different perspective;

[0020] Figure 3 This is a schematic diagram of the three-dimensional structure of this utility model from a perspective;

[0021] Figure 4 This is a cross-sectional view of the rectangular sleeve portion of this utility model.

[0022] The attached diagram is labeled as follows: 1. Support frame; 2. Center plate; 3. Side plate; 4. Mounting sleeve; 5. Adjusting sleeve; 6. Threaded column; 7. Hydraulic rod; 8. Rectangular abutment plate; 9. Lifting lug; 10. Rectangular shielding frame; 11. Limiting slide rod; 12. Guide inclined plate; 13. Rectangular sleeve; 14. Rectangular strip; 15. Positioning hole; 16. Limiting sleeve; 17. Pin; 18. Horizontal handle; 19. Magnet; 20. Iron block. Detailed Implementation

[0023] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The adjustable foundation pit excavation support device involved in this utility model is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0024] Reference Figures 1 to 4 This utility model provides an adjustable foundation pit excavation support device, including a support frame 1. The support frame 1 includes a central plate 2 and two side plates 3. The central plate 2 and the two side plates 3 are adapted to form a rectangular frame structure, and the right side of the support frame 1 is an open structure. The side plates 3 are L-shaped. Expansion grooves are provided at both the front and rear ends of the central plate 2. The two side plates 3 are symmetrically distributed on the front and rear sides of the central plate 2, and the side plates 3 are inserted into the expansion grooves.

[0025] Lifting lugs 9 are welded to the top of both side plates 3, and the lifting lugs 9 are compatible with the hooks of external lifting equipment.

[0026] By setting up lifting lugs 9, it is convenient to lift the entire support frame 1, and to lift the support frame 1 into or out of the foundation pit.

[0027] When the adjustable foundation pit excavation support device is used, the central plate 2 and the two side plates 3 are combined to form a support frame 1, which achieves the purpose of blocking and protecting the side wall of the foundation pit. Furthermore, the opening on the right side of the support frame 1 facilitates the excavation of the inner wall of the foundation pit.

[0028] A spacing adjustment component is provided between the center plate 2 and the side plate 3, and a backing travel component is provided on the surface of the center plate 2.

[0029] The spacing adjustment assembly includes a mounting sleeve 4 fixedly installed on the right side of the center plate 2. An adjusting sleeve 5 is rotatably connected to the inner wall of the mounting sleeve 4. The two ends of the adjusting sleeve 5 are symmetrically provided with internal thread grooves. Threaded posts 6 are fixedly installed on the inner walls of both side plates 3. The threaded posts 6 are adapted to the internal thread grooves.

[0030] The abutment travel assembly includes a hydraulic rod 7 embedded in the surface of the center plate 2, the telescopic end of the hydraulic rod 7 extending to the left end of the center plate 2 and fixedly mounted with a rectangular abutment plate 8.

[0031] During the use of the support frame 1, by rotating the adjusting sleeve 5 and using the threaded column 6 to connect with the adjusting sleeve 5, the distance between the two side plates 3 can be adjusted, thereby meeting the support and protection effect for foundation pits of different widths. Furthermore, during the excavation of the foundation pit, by controlling the extension of the hydraulic rod 7 to drive the rectangular abutment plate 8 to abut against the backfill soil of the foundation pit, the support frame 1 can be driven to move to the right, thereby meeting the need to adjust the position of the support device according to the excavation route of the foundation pit, which is convenient to adjust.

[0032] A rectangular shielding frame 10 is fixedly installed on the left side of the center plate 2. The rectangular shielding frame 10 is adapted to the shape of the rectangular abutment plate 8, and the bottom end of the rectangular shielding frame 10 is open.

[0033] By setting a rectangular shielding frame 10, the distance between the rectangular support plate 8 and the center plate 2 can be shielded, preventing a large amount of soil from seeping into the foundation pit during backfilling, and preventing obstruction when the hydraulic rod 7 retracts to drive the rectangular support plate 8 to reset.

[0034] A limiting slide rod 11 is fixedly installed on the surface of the rectangular abutment plate 8. The limiting slide rod 11 passes through the center plate 2 and is slidably connected to the center plate 2.

[0035] By setting the limiting slide bar 11, the stability of the movement of the rectangular support plate 8 can be ensured.

[0036] Guide ramps 12 are welded to the bottom right side of both side plates 3, with the inclined surfaces of the guide ramps 12 facing upwards.

[0037] By setting the guide ramp 12, it is possible to provide an upward lifting support effect for the support frame 1 when it moves to the right.

[0038] A reinforcing assembly is provided between the center plate 2 and the two side plates 3. The reinforcing assembly includes a rectangular sleeve 13 fixedly installed on the surface of the center plate 2. A rectangular strip 14 is welded to the adjacent side of the two side plates 3. The rectangular strip 14 is inserted into both ends of the rectangular sleeve 13.

[0039] The bottom end of the rectangular strip 14 is evenly provided with several positioning holes 15. The bottom end of the rectangular sleeve 13 is symmetrically fixed with two limiting sleeves 16. The inside of the two limiting sleeves 16 is slidably connected with pins 17. The pins 17 correspond to the positions of the positioning holes 15. The bottom ends of the two pins 17 are welded with horizontal handles 18.

[0040] A magnet 19 is embedded in the inner wall of the positioning hole 15, and an iron block 20 is embedded in the top of the pin 17. When the pin 17 is inserted into the positioning hole 15, the magnet 19 and the iron block 20 are magnetically attracted to each other.

[0041] By setting up reinforcement components, the movement path of the side plate 3 can be restricted by the sliding of the rectangular strip 14 inside the rectangular sleeve 13. Under the magnetic force of the magnet 19 and the iron block 20, the pin 17 is inserted into the inner wall of the positioning hole 15 to position the rectangular strip 14, which can position the spacing of the side plate 3 and enhance the structural strength of the support frame 1. When it is necessary to adjust the spacing of the side plate 3, the pin 17 can be pushed down by the horizontal handle 18 to disengage the pin 17 from the positioning hole 15 and release the positioning effect of the pin 17 on the rectangular strip 14.

[0042] Finally, it should be noted that the accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

Claims

1. An adjustable foundation pit excavation support device comprising a support frame (1), characterized in that: The supporting frame (1) comprises a center plate (2) and two side plates (3), the center plate (2) and the two side plates (3) are combined into a rectangular frame structure, the right side of the supporting frame (1) is an open structure, the side plate (3) is L-shaped, the front and rear ends of the center plate (2) are provided with expansion slots, the two side plates (3) are symmetrically distributed on the front and rear sides of the center plate (2), and the side plate (3) is inserted into the expansion slot, a spacing adjusting assembly is arranged between the center plate (2) and the side plate (3), and the surface of the center plate (2) is provided with a resistance advancing assembly; The spacing adjusting assembly comprises a mounting sleeve (4) fixedly installed on the right side of the center plate (2), an adjusting sleeve (5) rotatably connected to the inner wall of the mounting sleeve (4), and inner thread grooves symmetrically formed at the two ends of the adjusting sleeve (5), and the inner wall of each side plate (3) is fixedly installed with a threaded column (6) matched with the inner thread groove; The resistance advancing assembly comprises a hydraulic rod (7) embedded on the surface of the center plate (2), and a rectangular resistance plate (8) fixedly installed at the extension end of the hydraulic rod (7) extending to the left end of the center plate (2).

2. The adjustable foundation pit excavation support device according to claim 1, characterized in that: The top of each side plate (3) is welded with a lifting lug (9) matched with the hook of an external lifting device.

3. The adjustable foundation pit excavation support device according to claim 1, characterized in that: The left side of the center plate (2) is fixedly installed with a rectangular shielding frame (10) matched in shape with the rectangular resistance plate (8), and the bottom end of the rectangular shielding frame (10) is open.

4. The adjustable foundation pit excavation bracing device according to claim 1, characterized in that: A limiting sliding rod (11) is fixedly installed on the surface of the rectangular resistance plate (8) and penetrates through the center plate (2) and is in sliding connection with the center plate (2).

5. The adjustable excavation bracing device of claim 1, wherein: The bottom right side of each side plate (3) is welded with a guide inclined plate (12) with an upward inclined surface.

6. The adjustable excavation bracing device of claim 1, wherein: A reinforcing assembly is arranged between the center plate (2) and the two side plates (3), the reinforcing assembly comprises a rectangular sleeve (13) fixedly installed on the surface of the center plate (2), and a rectangular bar (14) welded on the side of each side plate (3) close to the other side plate (3), and the rectangular bar (14) is inserted into the two ends of the rectangular sleeve (13).

7. A device according to claim 6, wherein: The bottom end of the rectangular bar (14) is uniformly provided with a plurality of positioning holes (15), the bottom end of the rectangular sleeve (13) is symmetrically fixedly installed with two limiting sleeves (16), the interiors of the two limiting sleeves (16) are in sliding connection with a pin rod (17), the position of the pin rod (17) corresponds to that of the positioning hole (15), and the bottom end of the pin rod (17) is welded with a horizontal handle (18).

8. A device according to claim 7, wherein: The inner wall of the positioning hole (15) is embedded with a magnet (19), and the top of the pin rod (17) is embedded with an iron block (20), when the pin rod (17) is inserted into the interior of the positioning hole (15), the magnet (19) and the iron block (20) are magnetically attracted.

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