Enclosure supporting structure for municipal subway foundation pit engineering

Abstract

The utility model relates to the technical field of foundation pit supporting structures, and discloses an enclosure supporting structure for municipal subway foundation pit engineering, which comprises a lifting plate, a double-shaft motor is fixedly connected to the middle of the interior of the lifting plate, telescopic assemblies are arranged on the two sides of the double-shaft motor, supporting plates are arranged on the left side and the right side of the lifting plate, and the supporting plates are arranged on the left side and the right side of the lifting plate. The inner side of the supporting plate is connected with a telescopic assembly, a bottom plate is arranged below the lifting plate, a lifting assembly is arranged in the bottom plate, and the lifting plate is connected with the bottom plate through the lifting assembly. According to the movable enclosure supporting structure, the height and the width can be adjusted, the requirements of different construction stages can be met in time, the construction process can be optimized, the construction efficiency can be improved, the height and the width of the enclosure supporting structure can be rapidly adjusted in case of emergencies, and the movable enclosure supporting structure can be adjusted according to the requirements of different construction stages. The device can quickly move to a position needing to be supported, and construction efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of foundation pit support structures, in particular to an enclosure support structure for municipal subway foundation pit projects. Background Art

[0002] Various civil engineering facilities on the railway also refer to the technologies used in various stages of railway construction (survey and design, construction, maintenance, and reconstruction); railway engineering originally included railway-related civil engineering (tracks, roadbeds, bridges, tunnels, stations), machinery (locomotives, vehicles) and signal engineering; with the development of construction and the further division of labor in technology, some of these projects gradually formed independent disciplines, such as locomotive engineering, vehicle engineering, and signal engineering; other projects gradually became part of their own disciplines, such as bridge engineering and tunnel engineering.

[0003] In order to ensure the smooth construction of the subway foundation pit and the safety of surrounding buildings, a support structure is usually set between the foundation pit and the side walls of the foundation pit. There are many forms of foundation pit support structures. The function of the foundation pit support structure is to prevent groundwater and soil outside the foundation pit from flowing into the foundation pit. An existing foundation pit support structure uses support rods to press the guard plate against the side walls of the foundation pit to achieve reinforcement of the side walls of the foundation pit. However, this support structure cannot be adjusted according to the size of the foundation pit and has low flexibility. Under different geological conditions and construction environments, the height and width of the support structure cannot be flexibly adjusted according to actual needs, which may lead to poor support effect. In complex construction projects, emergencies may occur, and the unadjustable support structure will find it difficult to cope with these changes, which may affect the progress and quality of the entire project. Utility Model Content

[0004] The purpose of this utility model is to solve the shortcomings of the existing technology and propose a retaining support structure for municipal subway foundation pit projects. By setting up adjustable height and width mechanisms, it can meet the needs of different construction stages in a timely manner, optimize the construction process and improve construction efficiency.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A retaining support structure for a municipal subway foundation pit project includes a lifting plate, a dual-axis motor is fixedly connected to the middle part of the lifting plate, telescopic components are provided on both sides of the dual-axis motor, support plates are provided on the left and right sides of the lifting plate, the inner sides of the support plates are connected to the telescopic components, a bottom plate is provided below the lifting plate, a lifting component is provided inside the bottom plate, and the lifting plate is connected to the bottom plate via the lifting component.

[0007] Furthermore, the telescopic assembly includes fixed plates arranged on the left and right sides of the dual-axis motor, the fixed plates are fixedly connected to the inside of the lifting plate, the middle part of the fixed plates are rotatably connected to the first screw, the opposite ends of the first screw are fixedly connected to the drive shaft of the dual-axis motor, the outer walls of the first screw are threadedly connected to the threaded plates, and the opposite ends of the threaded plates are provided with connecting assemblies.

[0008] Furthermore, the connecting assembly includes connecting rods fixedly connected to opposite ends of the threaded plates, the opposite ends of the connecting rods are fixedly connected to buffer plates, and the opposite ends of the buffer plates are respectively fixedly connected to the inner upper part of the support plate.

[0009] Furthermore, sliding grooves are provided on both sides of the left and right sides of the bottom end of the lifting plate, and sliders are movably connected inside the sliding grooves. The top ends of the sliders are fixedly connected to the bottom ends of the threaded plates, and the bottom ends of the sliders are fixedly connected to the first connecting plate, and the other end of the first connecting plate is fixedly connected to the inner middle part of the support plate.

[0010] Furthermore, the lifting assembly includes a limiting groove arranged in the middle of the top end of the base plate, the inside of the limiting groove is rotatably connected to a second screw, the left and right sides of the second screw are threadedly connected to movable blocks, the front and rear sides of the movable block are rotatably connected to a second connecting plate, and the other end of the second connecting plate is rotatably connected to the bottom end of the lifting plate.

[0011] Furthermore, a servo motor is embedded and installed on the right side of the base plate, and the right end of the second screw is fixedly connected to the drive shaft of the servo motor.

[0012] Furthermore, hydraulic telescopic rods are provided at the four corners of the bottom end of the base plate, and the output ends of the hydraulic telescopic rods are fixedly connected to pads.

[0013] Furthermore, ear plates are fixedly connected to the left and right sides of the lifting plate, and limiting rods are fixedly connected to the front and rear sides of the top of the base plate. The upper ends of the limiting rods pass through the middle of the ear plates, and rotating wheels are provided on the left and right sides of the base plate.

[0014] The utility model has the following beneficial effects:

[0015] 1. In the present invention, the height and width can be adjusted. The adjustable height and width can meet the needs of different construction stages in a timely manner, optimize the construction process, improve construction efficiency, and can quickly adjust the height and width of the enclosure support structure in the face of emergencies, thereby enhancing the ability to resist risks.

[0016] 2. In the present invention, the movable wheel pair device is provided for overall movement, and the movable enclosure support structure can be quickly moved to the position requiring support according to the needs of different construction stages, thereby improving construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of a retaining support structure for a municipal subway foundation pit project proposed by the present utility model;

[0018] Figure 2 This is a schematic diagram of the first screw of a retaining support structure for a municipal subway foundation pit project proposed by the present invention;

[0019] Figure 3 This is a schematic diagram of the second connecting plate of a retaining support structure for a municipal subway foundation pit project proposed by the present invention;

[0020] Figure 4 This is a schematic diagram of the movable blocks of a retaining support structure for municipal subway foundation pit engineering proposed by the utility model.

[0021] Legend:

[0022] 1. Lifting plate; 2. Dual-axis motor; 3. Fixed plate; 4. First screw; 5. Threaded plate; 6. Connecting rod; 7. Buffer plate; 8. Support plate; 9. Slide groove; 10. Slider; 11. First connecting plate; 12. Bottom plate; 13. Limiting groove; 14. Second screw; 15. Movable block; 16. Second connecting plate; 17. Servo motor; 18. Rotating wheel; 19. Hydraulic telescopic rod; 20. Pad; 21. Ear plate; 22. Limiting rod. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] Reference Figure 1 and Figure 2 The utility model provides an embodiment: a retaining support structure for a municipal subway foundation pit project, including a lifting plate 1, a dual-axis motor 2 is fixedly connected to the middle part of the inner part of the lifting plate 1, and a fixed plate 3 is provided on both sides of the left and right sides of the dual-axis motor 2. The bottom end of the fixed plate 3 is fixedly connected to the inside of the lifting plate 1, and the middle part of the fixed plate 3 is rotatably connected to the first screw 4, and the opposite end of the first screw 4 is fixedly connected to the driving shaft of the dual-axis motor 2. The outer wall of the first screw 4 is threadedly connected with a threaded plate 5, and the opposite ends of the threaded plate 5 are fixedly connected to the connecting rod 6, and the opposite ends of the connecting rod 6 are fixedly connected to the buffer plate 7. The opposite ends of the buffer plate 7 are respectively fixedly connected to the inner upper part of the support plate 8, and a bottom plate 12 is provided below the lifting plate 1.

[0025] Specifically, the dual-axis motor 2 is started, and the dual-axis motor 2 drives the fixed plate 3 to rotate. The rotation of the fixed plate 3 drives the threaded plate 5 to move left and right. The threaded plate 5 drives the support plate 8 to retract through the connecting rod 6 and the buffer plate 7 so as to be adjusted according to the width of the foundation pit, thereby improving the applicability and flexibility of the device.

[0026] Refer to the figure Figure 3 , slide grooves 9 are provided on the left and right sides of the bottom end of the lifting plate 1, and the inside of the slide grooves 9 are movably connected with sliders 10. The top of the slider 10 is fixedly connected to the bottom end of the threaded plate 5, and the bottom end of the slider 10 is fixedly connected to the first connecting plate 11, and the other end of the first connecting plate 11 is fixedly connected to the inner middle part of the support plate 8.

[0027] Specifically, the threaded plate 5, the connecting rod 6, the buffer plate 7, the support plate 8 and the first connecting plate 11 form a triangular structure, so that the support plate 8 is more stable when supporting and protecting the inner wall of the foundation pit, thereby improving the supporting effect.

[0028] Reference Figure 3 and Figure 4 A limiting groove 13 is provided in the middle of the top of the bottom plate 12, and a second screw 14 is rotatably connected inside the limiting groove 13. The left and right sides of the second screw 14 are threadedly connected to movable blocks 15, and the front and rear sides of the movable block 15 are rotatably connected to the second connecting plate 16. The other end of the second connecting plate 16 is rotatably connected to the bottom end of the lifting plate 1. A servo motor 17 is embedded and installed on the right side of the bottom plate 12. The right end of the second screw 14 is fixedly connected to the left end of the drive shaft of the servo motor 17. Hydraulic telescopic rods 19 are provided at the four corners of the bottom end of the bottom plate 12, and the output ends of the hydraulic telescopic rods 19 are fixedly connected to pads 20. Ear plates 21 are fixedly connected to the left and right sides of the lifting plate 1. Limit rods 22 are fixedly connected to the front and rear sides of the top of the bottom plate 12. The upper ends of the limit rods 22 pass through the middle of the ear plates 21, and rotating wheels 18 are provided on the left and right sides of the bottom plate 12.

[0029] Specifically, start the servo motor 17, the servo motor 17 drives the second screw 14 to rotate, and the second screw 14 drives the movable block 15 to move left and right along the inner wall of the limiting groove 13. The movable block 15 cooperates with the second connecting plate 16 to drive the lifting plate 1 to rise and fall, and then drives the support plate 8 to rise and fall, so as to facilitate timely adjustment of the height of the support plate 8 according to actual conditions and needs.

[0030] Working principle: When in use, the rotating wheel 18 is driven by the motor to move the device to the predetermined position, and the hydraulic telescopic rod 19 is started. The hydraulic telescopic rod 19 drives the pad 20 to descend, and the pad 20 contacts the ground and supports and fixes the entire device to enhance the stability of the device. The servo motor 17 is started, and the servo motor 17 drives the second screw 14 to rotate. The rotation of the second screw 14 drives the movable block 15 to move to both sides. The movable block 15 cooperates with the second connecting plate 16 to drive the lifting plate 1 to rise to the appropriate position. The dual-axis motor 2 is started, and the dual-axis motor 2 drives the first screw 4 to rotate. The first screw 4 drives the threaded plate 5 to move outward along the inner wall of the lifting plate 1. The threaded plate 5 drives the support plate 8 to move to both sides of the foundation pit through the connecting rod 6 and the buffer plate 7, and the side walls of the foundation pit are supported and protected by the support plate 8.

[0031] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A retaining support structure for a municipal subway foundation pit project, comprising a lifting plate (1), characterized in that: A dual-axis motor (2) is fixedly connected to the middle of the interior of the lifting plate (1), telescopic components are provided on both sides of the dual-axis motor (2), support plates (8) are provided on the left and right sides of the lifting plate (1), the inner side of the support plate (8) is connected to the telescopic component, a bottom plate (12) is provided below the lifting plate (1), a lifting component is provided inside the bottom plate (12), and the lifting plate (1) is connected to the bottom plate (12) via the lifting component.

2. The retaining support structure for a municipal subway foundation pit project according to claim 1, characterized in that: The telescopic assembly comprises fixed plates (3) arranged on the left and right sides of the dual-axis motor (2), the fixed plates (3) being fixedly connected to the inside of the lifting plate (1), the middle part of the fixed plates (3) being rotatably connected to a first screw rod (4), the opposite ends of the first screw rod (4) being fixedly connected to the driving shaft of the dual-axis motor (2), the outer walls of the first screw rod (4) being threadedly connected to a threaded plate (5), and the opposite ends of the threaded plates (5) being provided with a connecting assembly.

3. The retaining support structure for a municipal subway foundation pit project according to claim 2, characterized in that: The connecting assembly comprises a connecting rod (6) fixedly connected to the opposite ends of the threaded plate (5), the opposite ends of the connecting rod (6) are fixedly connected to a buffer plate (7), and the opposite ends of the buffer plate (7) are respectively fixedly connected to the inner upper part of the support plate (8).

4. The retaining support structure for a municipal subway foundation pit project according to claim 1, characterized in that: The left and right sides of the bottom end of the lifting plate (1) are both provided with a slide groove (9), the inside of the slide groove (9) is movably connected with a slider (10), the top end of the slider (10) is fixedly connected to the bottom end of the threaded plate (5), the bottom end of the slider (10) is fixedly connected to a first connecting plate (11), and the other end of the first connecting plate (11) is fixedly connected to the inner middle part of the support plate (8).

5. The retaining support structure for a municipal subway foundation pit project according to claim 1, characterized in that: The lifting assembly comprises a limiting groove (13) provided at the middle of the top end of the bottom plate (12); a second screw rod (14) is rotatably connected inside the limiting groove (13); movable blocks (15) are threadedly connected to the left and right sides of the second screw rod (14); the front and rear sides of the movable block (15) are rotatably connected to the second connecting plate (16); the other end of the second connecting plate (16) is rotatably connected to the bottom end of the lifting plate (1).

6. The retaining support structure for a municipal subway foundation pit project according to claim 5, characterized in that: A servo motor (17) is embedded and installed on the right side of the base plate (12), and the right end of the second screw (14) is fixedly connected to the driving shaft of the servo motor (17).

7. The retaining support structure for a municipal subway foundation pit project according to claim 1, characterized in that: The four corners of the bottom end of the base plate (12) are all provided with hydraulic telescopic rods (19), and the output ends of the hydraulic telescopic rods (19) are all fixedly connected with pads (20).

8. The retaining support structure for a municipal subway foundation pit project according to claim 1, characterized in that: The left and right sides of the lifting plate (1) are fixedly connected to ear plates (21), the front and rear sides of the top of the bottom plate (12) are fixedly connected to limit rods (22), the upper ends of the limit rods (22) pass through the middle of the ear plates (21), and the left and right sides of the bottom plate (12) are provided with rotating wheels (18).

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