Adjustable supporting device for municipal foundation pit construction

Abstract

The utility model discloses an adjustable supporting device for municipal foundation pit construction, and relates to the technical field of foundation pit supporting, the adjustable supporting device comprises a fixed bottom plate, an adjusting mechanism is arranged above the fixed bottom plate, the adjusting mechanism comprises two adjusting screw rods, the outer surfaces of the two adjusting screw rods are both rotatably connected with the fixed bottom plate, and the adjusting screw rods are connected with the fixed bottom plate. The adjustable supporting device for municipal foundation pit construction comprises a fixed bottom plate, two driven sliding plates are slidably connected to the top face of the fixed bottom plate, and the inner walls of the two driven sliding plates are in threaded connection with two adjusting screw rods correspondingly. Therefore, the supporting position of the second supporting plate can be flexibly adjusted according to the gradient and height of the pit wall of the foundation pit, through the optimization, the operation space of the foundation pit is effectively saved, a convenient operation environment is provided for constructors, meanwhile, the adaptability of the device to different working conditions is remarkably improved, and the working efficiency is improved. And the whole device has higher practical value.

Description

Technical Field

[0001] This utility model relates to the field of foundation pit support technology, specifically an adjustable support device for municipal foundation pit construction. Background Technology

[0002] Foundation pit support is a temporary support measure taken in construction projects to ensure the safety of foundation pit excavation. It prevents soil collapse and protects surrounding buildings and underground facilities through retaining walls, supporting structures, etc. Reasonable support can effectively control deformation and ensure construction safety and project quality.

[0003] A search revealed a Chinese patent with publication number CN215290162U that discloses a foundation pit support structure, including four first support plates and several second support plates vertically arranged in the foundation pit. The foundation pit has a rectangular cross-section, the first support plates have an L-shaped cross-section, and the four first support plates are respectively abutted at the four apex corners of the foundation pit.

[0004] While the above-mentioned solutions can support the foundation pit, they still have significant limitations in practical applications. Because the current support devices use a multi-layered horizontal support structure for dense support, a large amount of space inside the foundation pit is occupied. This not only significantly increases construction costs but also seriously affects the working space for workers to carry out subsequent processes such as earthwork excavation and pipeline laying. To address these issues, we provide an adjustable support device for municipal foundation pit construction. Utility Model Content

[0005] The purpose of this utility model is to provide an adjustable support device for municipal foundation pit construction to solve the problems raised in the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an adjustable support device for municipal foundation pit construction, comprising a fixed base plate, an adjustment mechanism provided above the fixed base plate, the adjustment mechanism comprising two adjustment screws, the outer surfaces of the two adjustment screws being rotatably connected to the fixed base plate, two driven sliding plates slidably connected to the top surface of the fixed base plate, the inner walls of the two driven sliding plates being threadedly connected to the two adjustment screws respectively, an adjustment arm being rotatably connected to the inner walls of the two driven sliding plates, and a first support plate being rotatably connected to the end of the two adjustment arms away from the driven sliding plates;

[0007] A support mechanism is provided above the fixed base plate. The support mechanism includes a second support plate, the outer surface of which is fixedly connected to the first support plate.

[0008] Preferably, the inner wall of the fixed base plate is rotatably connected to two support arms, and the ends of the two support arms away from the fixed base plate are respectively rotatably connected to two adjusting arms. The support arms effectively support the adjusting arms.

[0009] Preferably, a drive assembly is fixedly connected to the top surface of the fixed base plate, and two drive motors are fixedly connected to the inner wall of the drive assembly. The output ends of the two drive motors are respectively fixedly connected to two adjusting screws. The drive assembly is composed of a fixed shell and drive motors, and is fixedly connected to the fixed base plate through the bottom surface of the fixed shell and the drive motors through the inner wall of the fixed shell.

[0010] Preferably, a limiting slide rod is slidably connected to the inner wall of the second support plate, and one end of the limiting slide rod is fixedly connected to a support plate. The limiting slide rod effectively limits the position of the support plate.

[0011] Preferably, a buffer spring is sleeved on the outer surface of the limiting slide rod. The two ends of the buffer spring are fixedly connected to the second support plate and the support plate, respectively. By setting the limiting slide rod, the buffer spring is effectively limited, making the buffer spring more stable during expansion and contraction.

[0012] Preferably, a damping rod is fixedly connected to the outer surface of the second support plate, and the telescopic end of the damping rod is fixedly connected to the support plate. A buffer spring two is sleeved on the outer surface of the damping rod, and the two ends of the buffer spring two are fixedly connected to the second support plate and the support plate respectively. Through the synergistic effect of the buffer spring one, the damping rod and the buffer spring two, vibration transmission can be effectively suppressed, the impact of external construction vibration on the support system can be reduced, and the device can be prevented from displaced due to vibration.

[0013] Preferably, the inner wall of the fixed base plate is fitted with a fixed anchor rod, and the outer surface of the support plate is fixedly connected with a reinforcing block. The fixed anchor rod effectively fixes the fixed base plate.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. This adjustable municipal foundation pit construction support device, through the coordinated arrangement of components in the adjustment mechanism, enables flexible adjustment of the second support plate support position according to the slope and height of the foundation pit wall. This optimization not only effectively saves foundation pit working space and provides a convenient operating environment for construction personnel, but also significantly improves the adaptability of this device to different working conditions, making the device more practical.

[0016] 2. The adjustable municipal foundation pit construction support device, through the coordinated arrangement of components in the support mechanism, can reduce the vibration of the entire device during the foundation pit support process, effectively suppress vibration transmission, reduce the impact of external construction vibration on the support system, and prevent the device from displaced or loosened due to vibration. This significantly improves the vibration resistance and overall stability of the support system, ensuring the safety and reliability of foundation pit construction. Attached Figure Description

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

[0018] Figure 2 This is a three-dimensional structural diagram of the adjustment mechanism of this utility model;

[0019] Figure 3 This is a three-dimensional structural diagram of the support mechanism of this utility model;

[0020] Figure 4 This utility model Figure 3 A schematic diagram of the three-dimensional structure at point A in the middle.

[0021] The following are the labels in the diagram: 1. Fixed base plate; 2. Adjustment mechanism; 201. Adjustment screw; 202. Driven slide plate; 203. Adjustment arm; 204. First support plate; 205. Support arm; 206. Drive assembly; 3. Support mechanism; 301. Second support plate; 302. Limiting slide rod; 303. Support plate; 304. Buffer spring one; 305. Damping rod; 306. Buffer spring two; 4. Fixed anchor bolt; 5. Reinforcing block. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] like Figure 1 As shown, this utility model provides a technical solution for an adjustable support device for municipal foundation pit construction, including a fixed base plate 1, on which a storage battery is fixedly installed. Through the installation of the storage battery, the electrical equipment in this application can be effectively powered.

[0024] like Figure 1 and Figure 2As shown, an adjustment mechanism 2 is provided above the fixed base plate 1. The adjustment mechanism 2 includes two adjustment screws 201. The outer surfaces of the two adjustment screws 201 are rotatably connected to the fixed base plate 1. Two driven slide plates 202 are slidably connected to the top surface of the fixed base plate 1. The inner walls of the two driven slide plates 202 are threadedly connected to the two adjustment screws 201 respectively. By driving the adjustment screws 201 to rotate, the driven slide plates 202 can be driven to slide synchronously on the top surface of the fixed base plate 1.

[0025] A protective shell is installed between the fixed base plate 1 and the adjusting screw 201, and the surface of the adjusting screw 201 is provided with a smooth coating that is corrosion-resistant and dust-proof. The protective shell and the smooth coating can effectively ensure the stable operation between the adjusting screw 201 and the driven slide plate 202.

[0026] The inner walls of the two driven slide plates 202 are rotatably connected to adjusting arms 203. The ends of the two adjusting arms 203 away from the driven slide plates 202 are rotatably connected to a first support plate 204. By driving the driven slide plates 202 to slide, the adjusting arms 203 can be driven to swing simultaneously.

[0027] Two support arms 205 are rotatably connected to the inner wall of the fixed base plate 1. The ends of the two support arms 205 away from the fixed base plate 1 are rotatably connected to two adjusting arms 203 respectively. The support arms 205 effectively support the adjusting arms 203, thus making the first support plate 204 more stable when the adjusting arms 203 are driven to swing and adjust.

[0028] A drive assembly 206 is fixedly connected to the top surface of the fixed base plate 1. Two drive motors are fixedly connected to the inner wall of the drive assembly 206. The output ends of the two drive motors are fixedly connected to two adjusting screws 201 respectively. The drive assembly 206 is composed of a fixed shell and a drive motor. The fixed shell is fixedly connected to the fixed base plate 1 through the bottom surface of the fixed shell, and the inner wall of the fixed shell is fixedly connected to the drive motor. The drive motor is prior art, so it is not shown in the figure. This application will not go into excessive detail about its model and internal structure. It can also be replaced by other power sources or manual handles.

[0029] like Figure 1 , Figure 2 and Figure 4 As shown, a support mechanism 3 is provided above the fixed base plate 1. The support mechanism 3 includes a second support plate 301. The outer surface of the second support plate 301 is fixedly connected to the first support plate 204. A limiting slide rod 302 is slidably connected to the inner wall of the second support plate 301. A support plate 303 is fixedly connected to one end of the limiting slide rod 302. By setting the limiting slide rod 302, the support plate 303 is effectively limited, making the support plate 303 more stable during slight displacement.

[0030] A buffer spring 304 is sleeved on the outer surface of the limiting slide rod 302. The two ends of the buffer spring 304 are fixedly connected to the second support plate 301 and the support plate 303, respectively. A damping rod 305 is fixedly connected to the outer surface of the second support plate 301. The telescopic end of the damping rod 305 is fixedly connected to the support plate 303. A buffer spring 306 is sleeved on the outer surface of the damping rod 305. The two ends of the buffer spring 306 are fixedly connected to the second support plate 301 and the support plate 303, respectively. Through the synergistic effect of the buffer spring 304, the damping rod 305 and the buffer spring 306, vibration transmission can be effectively suppressed, the impact of external construction vibration on the support system can be reduced, and the device can be prevented from displacing due to vibration.

[0031] like Figure 1 and Figure 4 As shown, the inner wall of the fixed base plate 1 is fitted with a fixed anchor rod 4, and the outer surface of the support plate 303 is fixedly connected with a reinforcing block 5. The fixed anchor rod 4 effectively fixes the fixed base plate 1. The reinforcing block 5 effectively increases the friction between the support plate 303 and the pit wall, making the support plate 303 fit more firmly against the pit wall.

[0032] The structural diagrams of the components shown in the attached figures are exemplary. The specific implementation should be adapted and optimized by considering the functional requirements, assembly conditions and process limitations in the actual application scenario, and adjusting the structural parameters, size specifications and connection methods accordingly.

[0033] Working principle: First, the fixed base plate 1 is fixed to the foundation pit by the fixed anchor rod 4. Then, the two drive motors in the drive assembly 206 are started to drive the two adjusting screws 201 to rotate independently. By driving the two adjusting screws 201 to rotate, and in combination with the synergistic action of the two adjusting arms 203 and the support arm 205, the support position of the second support plate 301 can be effectively adjusted flexibly according to the slope and height of the foundation pit wall. This optimization not only effectively saves the foundation pit working space and provides a convenient operating environment for construction personnel, but also significantly improves the compatibility of the device. Second, during the support process of the support plate 303 in the foundation pit, the synergistic action of the buffer spring 304, the damping rod 305 and the buffer spring 306 can effectively suppress vibration transmission, reduce the impact of external construction vibration on the support system, and prevent the device from displaced due to vibration, thereby significantly improving the vibration resistance and overall stability of the support system.

[0034] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An adjustable support device for municipal foundation pit construction, comprising a fixed base plate (1), characterized in that: An adjustment mechanism (2) is provided above the fixed base plate (1). The adjustment mechanism (2) includes two adjustment screws (201). The outer surfaces of the two adjustment screws (201) are rotatably connected to the fixed base plate (1). The top surface of the fixed base plate (1) is slidably connected to two driven slide plates (202). The inner walls of the two driven slide plates (202) are threadedly connected to the two adjustment screws (201) respectively. The inner walls of the two driven slide plates (202) are rotatably connected to adjustment arms (203). The end of the two adjustment arms (203) away from the driven slide plates (202) is rotatably connected to a first support plate (204). A support mechanism (3) is provided above the fixed base plate (1). The support mechanism (3) includes a second support plate (301), and the outer surface of the second support plate (301) is fixedly connected to the first support plate (204).

2. The adjustable support device for municipal foundation pit construction according to claim 1, characterized in that: The inner wall of the fixed base plate (1) is rotatably connected to two support arms (205), and the ends of the two support arms (205) away from the fixed base plate (1) are rotatably connected to two adjusting arms (203).

3. The adjustable support device for municipal foundation pit construction according to claim 1, characterized in that: The top surface of the fixed base plate (1) is fixedly connected to a drive assembly (206), and the inner wall of the drive assembly (206) is fixedly connected to two drive motors. The output ends of the two drive motors are respectively fixedly connected to two adjusting screws (201).

4. The adjustable support device for municipal foundation pit construction according to claim 1, characterized in that: The inner wall of the second support plate (301) is slidably connected to a limiting slide rod (302), and one end of the limiting slide rod (302) is fixedly connected to a support plate (303).

5. The adjustable support device for municipal foundation pit construction according to claim 4, characterized in that: The outer surface of the limiting slide bar (302) is fitted with a buffer spring (304), and the two ends of the buffer spring (304) are fixedly connected to the second support plate (301) and the support plate (303) respectively.

6. The adjustable support device for municipal foundation pit construction according to claim 4, characterized in that: A damping rod (305) is fixedly connected to the outer surface of the second support plate (301). The telescopic end of the damping rod (305) is fixedly connected to the support plate (303). A buffer spring (306) is sleeved on the outer surface of the damping rod (305). The two ends of the buffer spring (306) are fixedly connected to the second support plate (301) and the support plate (303) respectively.

7. The adjustable support device for municipal foundation pit construction according to claim 4, characterized in that: The inner wall of the fixed base plate (1) is fitted with a fixed anchor rod (4), and the outer surface of the support plate (303) is fixedly connected with a reinforcing block (5).

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