A foundation pit support mechanism

Abstract

The present invention discloses a foundation pit support mechanism, which relates to the technical field of foundation pit support and includes a positioning disc. It further includes: a positioning column fixedly arranged at the bottom of the positioning disc, and an installation cylinder fixedly connected to the positioning disc; a support mechanism arranged on the side wall of the installation cylinder, including a telescopic cylinder fixedly arranged on the positioning disc, the top of the telescopic cylinder is fixedly connected to a movable column, a clamping block is fixedly connected to the side of the movable column close to the installation cylinder, a telescopic column is fixedly connected to the side wall of the positioning disc, a mounting plate is fixedly connected to one side of the telescopic column, a support member is fixedly connected to the side wall of the mounting plate, a support plate is fixedly connected to the side wall of the support member, an airbag pad is fixedly connected to the side of the mounting plate close to the support plate, a transmission arm is hinged between the mounting plate and the movable column, a movable disc is slidably sleeved on the installation cylinder, a limiting component is arranged on the side wall of the movable disc, a gas guide pipe is arranged between the limiting component and the valve component, and an adjusting component is arranged in a fixed cylinder fixedly connected to the side wall of the installation cylinder, capable of rapid installation and support.

Description

Technical Field

[0001] The present invention relates to the technical field of foundation pit support, and specifically to a foundation pit support mechanism. Background Art

[0002] Foundation pit support is a protective measure for the side walls of a foundation pit and the surrounding environment to ensure the safety of underground structure construction and the surrounding environment of the foundation pit. Currently, there are mainly three forms of foundation pits: horizontal support, inclined support, and reverse anchoring technology. As a mechanism system, the foundation pit support should meet the requirements of stability and deformation, that is, the requirements of the two limit states usually specified in the codes. Generally, the displacement control of the support structure is mainly based on the horizontal displacement, which is more intuitive and easy to detect.

[0003] When the traditional foundation pit support device is actually installed and used, it is necessary to manually adjust the central position and then adjust and position the installation, and the operation is very cumbersome. For the support of some irregular foundation pits, it is necessary to manually adjust and support the side walls at different positions respectively, and the installation efficiency is very low. At the same time, the traditional support mechanism cannot flexibly adjust the support force according to the changing pressure of the foundation pit side wall, and the flexibility of use is poor and the practicability is not high. Summary of the Invention

[0004] The present invention provides a foundation pit support mechanism, which solves the problems in the above background art.

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

[0006] A foundation pit support mechanism includes a positioning disk, and further includes:

[0007] A positioning column disposed at the bottom of the positioning disk, and an installation cylinder is fixedly connected to the positioning disk; a support mechanism disposed on the side wall of the installation cylinder, including a telescopic cylinder fixedly disposed on the positioning disk, a movable column is fixedly connected to the top of the telescopic cylinder, a clamping block is fixedly connected to the side of the movable column close to the installation cylinder, a telescopic column is fixedly connected to the side wall of the positioning disk, a mounting plate is fixedly connected to one side of the telescopic column, a support member is fixedly connected to the side wall of the mounting plate, a support plate is fixedly connected to the side wall of the support member, an airbag pad is fixedly connected to the side of the mounting plate close to the support plate, a valve assembly is disposed on the mounting plate, an air charging pipe is disposed between the valve assembly and the airbag pad, a transmission arm is hinged between the mounting plate and the movable column, a movable disk is slidably sleeved on the installation cylinder, a limiting assembly is disposed on the side wall of the movable disk, a guide pipe is disposed between the limiting assembly and the valve assembly, and a fixed cylinder is fixedly connected to the side wall of the installation cylinder, and an adjusting assembly is disposed in the fixed cylinder.

[0008] As a preferred technical solution of the present invention, the valve assembly includes a valve housing fixedly arranged on one side of the mounting plate. Communication ports and inflation ports are respectively opened on both sides of the valve housing. A valve rod is slidably arranged in the valve housing. A valve port is opened at one end of the valve rod. One side of the valve rod is fixedly connected to a support plate. The inflation pipe and the guide pipe are both fixedly connected to the valve housing, and the inflation pipe and the guide pipe are respectively corresponding and communicatively connected to the inflation port and the communication port.

[0009] As a preferred technical solution of the present invention, the limiting assembly includes a limiting cylinder fixedly arranged on the side wall of the movable disk. A movable block is slidably arranged in the limiting cylinder. A stop arm is fixedly connected to one side of the movable block. A reset member is sleeved on the stop arm in the limiting cylinder. One side of the stop arm is correspondingly arranged with a clamping block. An air inlet hole is opened on the movable disk above the limiting cylinder. One side of the guide pipe is fixedly connected to the movable disk and is communicatively connected to the air inlet hole.

[0010] As a preferred technical solution of the present invention, the adjusting assembly includes a rotating rod arranged in the mounting cylinder. A transmission disk is fixedly sleeved at one end of the rotating rod. Transmission rods are hinged on both sides of the transmission disk. One end of the transmission rod is hinged to a driving block. The driving block is slidably arranged in the fixed cylinder.

[0011] As a preferred technical solution of the present invention, an elastic member is fixedly connected to one side of the driving block. A piston block is fixedly connected to one side of the elastic member. The piston block is slidably arranged in the fixed cylinder. A stop column is fixedly connected to one side of the piston block. One side of the top end of the stop column is set as an arc-shaped surface structure. One end of the stop column is slidably penetrated through the side wall of the fixed cylinder.

[0012] As a preferred technical solution of the present invention, a fixed disk is fixedly connected to the top of the mounting cylinder. A push rod is slidably penetrated through one side of the fixed disk. One side of the push rod is fixedly connected to the movable disk.

[0013] As a preferred technical solution of the present invention, an air supply pump is fixedly connected to the bottom of the valve housing. The air outlet ends of the air supply pump are respectively correspondingly arranged with the inflation port and the communication port.

[0014] The present invention has the following advantages: When in use, place the positioning disk of the device at the bottom of the foundation pit, and achieve positioning and installation under the action of the positioning column. Then, manually press down the push rod to drive the movable disk to move downward. The stop arm on the side of the movable disk contacts the block on the movable column and drives the movable column to move downward. During the downward movement of the movable column, the mounting plate is driven to move horizontally through the transmission arm, and at the same time, the telescopic column extends. When the support plate on the side close to the side wall of the foundation pit first contacts the side wall of the foundation pit, the support plate is driven by the reaction force of the side wall of the foundation pit to drive the valve rod to move horizontally. When the valve port on the valve rod corresponds to the communication port, under the action of the air pump, high-pressure gas enters the limiting cylinder through the air guide pipe at one end of the communication port. The movable block in the limiting cylinder drives the stop arm to move away from the movable column, and the stop arm is separated from the block. When the movable disk continues to move downward, it no longer drives the movable column on this side to move downward. At the same time, the movable column is limited under the action of the stop column. This process realizes the support of one side of the foundation pit. Then, continue to move the movable disk downward and repeat the above steps to realize the rapid support installation of multiple sides of the foundation pit. This operation method of the device only requires manual movement of the push rod to achieve all-round support, with high installation efficiency, convenient operation and use. At the same time, if the side wall of the foundation pit is externally pressured to the side during the support process, the support plate will drive the valve rod to continue to move. When the valve port is communicated with the inflation port, the air bag is inflated through the inflation pipe under the action of the air pump, and the support force of one side of the support plate can be quickly adjusted to ensure the stable support of the device, flexible use and stronger practicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic view of the overall front view structure of a foundation pit support mechanism.

[0016] Figure 2 It is a schematic view of the overall bottom view structure of a foundation pit support mechanism.

[0017] Figure 3 It is a schematic view of the front view structure of a foundation pit support mechanism.

[0018] Figure 4 It is Figure 3 The enlarged structural schematic diagram of A in

[0019] Figure 5 It is a schematic view of the structure of the adjustment component in a foundation pit support mechanism.

[0020] Figure 6 It is a schematic view of the structure of the valve component in a foundation pit support mechanism.

[0021] In the figure: 1, positioning disk; 2, mounting cylinder; 3, support plate; 4, fixed cylinder; 5, movable column; 6, air duct; 7, movable disk; 8, fixed disk; 9, rotating rod; 10, push rod; 11, transmission arm; 12, telescopic cylinder; 13, telescopic column; 14, positioning column; 15, airbag pad; 16, valve housing; 17, transmission disk; 18, transmission rod; 19, elastic member; 20, piston block; 21, stop column; 22, drive block; 23, clamping block; 24, limiting cylinder; 25, movable block; 26, stop arm; 27, reset member; 28, air inlet hole; 29, communication port; 30, valve rod; 31, valve port; 32, inflation port; 33, air supply pump; 34, support member; 35, inflation pipe; 36, mounting plate; 37, support mechanism; 38, valve assembly; 39, limiting assembly; 40, adjusting assembly. Specific embodiments

[0022] The following is a description of the preferred embodiments of the present invention in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only for the purpose of illustrating and explaining the present invention, and are not used to limit the present invention. Embodiment

[0023] Please refer to Figures 1-6 , a foundation pit support mechanism 37, including a positioning disk 1, further including: a positioning column 14 fixedly arranged at the bottom of the positioning disk 1, the positioning disk 1 is fixedly connected with a mounting cylinder 2; a support mechanism 37 arranged on the side wall of the mounting cylinder 2, including a telescopic cylinder 12 fixedly arranged on the positioning disk 1, the top of the telescopic cylinder 12 is fixedly connected with a movable column 5, one side of the movable column 5 close to the mounting cylinder 2 is fixedly connected with a clamping block 23, the side wall of the positioning disk 1 is fixedly connected with a telescopic column 13, one side of the telescopic column 13 is fixedly connected with a mounting plate 36, the side wall of the mounting plate 36 is fixedly connected with a support member 34, the support member 34 can be a spring or an elastic metal sheet with a telescopic property, etc., the side wall of the support member 34 is fixedly connected with a support plate 3, one side of the mounting plate 36 close to the support plate 3 is fixedly connected with an airbag pad 15, a valve assembly 38 is arranged on the mounting plate 36, an inflation pipe 35 is arranged between the valve assembly 38 and the airbag pad 15, the mounting plate 36 and the movable column 5 are hinged with a transmission arm 11, a movable disk 7 is slidably sleeved on the mounting cylinder 2, a limiting assembly 39 is arranged on the side wall of the movable disk 7, an air duct 6 is arranged between the limiting assembly 39 and the valve assembly 38, a fixed cylinder 4 is fixedly connected to the side wall of the mounting cylinder 2, and an adjusting assembly 40 is arranged in the fixed cylinder 4.

[0024] The valve assembly 38 includes a valve housing 16 fixedly arranged on one side of the mounting plate 36. Communication ports 29 and inflation ports 32 are respectively formed on both sides of the valve housing 16. A valve rod 30 is slidably arranged in the valve housing 16. A valve port 31 is formed at one end of the valve rod 30. One side of the valve rod 30 is fixedly connected to the support plate 3. The inflation pipe 35 and the guide pipe 6 are both fixedly connected to the valve housing 16. The inflation pipe 35 and the guide pipe 6 are respectively in corresponding communication with the inflation port 32 and the communication port 29.

[0025] The limiting assembly 39 includes a limiting cylinder 24 fixedly arranged on the side wall of the movable disk 7. A movable block 25 is slidably arranged in the limiting cylinder 24. A stop arm 26 is fixedly connected to one side of the movable block 25. A reset member 27 is sleeved on the stop arm 26 in the limiting cylinder 24. The reset member 27 can be a spring or an elastic metal sheet with a telescopic property, etc. One side of the stop arm 26 is correspondingly arranged with a clamping block 23. An air inlet hole 28 is formed on the movable disk 7 above the limiting cylinder 24. The air inlet hole 28 is communicated with the limiting cylinder 24. One side of the guide pipe 6 is fixedly connected to the movable disk 7 and is communicated with the air inlet hole 28.

[0026] The adjusting assembly 40 includes a rotating rod 9 arranged in the mounting cylinder 2. A transmission disk 17 is fixedly sleeved at one end of the rotating rod 9. Transmission rods 18 are hinged on both sides of the transmission disk 17. One end of the transmission rod 18 is hinged to a driving block 22. The driving block 22 is slidably arranged in the fixed cylinder 4.

[0027] One side of the driving block 22 is fixedly connected to an elastic member 19. The elastic member 19 can be a spring or an elastic metal sheet with a telescopic property, etc. One side of the elastic member 19 is fixedly connected to a piston block 20. The piston block 20 is slidably arranged in the fixed cylinder 4. One side of the piston block 20 is fixedly connected to a stop column 21. One side of the top end of the stop column 21 is provided with an arc-shaped surface structure. One end of the stop column 21 is slidably penetrated through the side wall of the fixed cylinder 4. Embodiment

[0028] Please refer to Figures 1-6, a foundation pit support mechanism 37, including a positioning disk 1, further comprising: a positioning column 14 fixedly arranged at the bottom of the positioning disk 1, and an installation cylinder 2 fixedly connected to the positioning disk 1; a support mechanism 37 arranged on the side wall of the installation cylinder 2, including a telescopic cylinder 12 fixedly arranged on the positioning disk 1, the top of the telescopic cylinder 12 is fixedly connected to a movable column 5, one side of the movable column 5 close to the installation cylinder 2 is fixedly connected to a clamping block 23, a telescopic column 13 is fixedly connected to the side wall of the positioning disk 1, one side of the telescopic column 13 is fixedly connected to a mounting plate 36, a support member 34 is fixedly connected to the side wall of the mounting plate 36, the support member 34 can be a spring or an elastic metal sheet with telescopic properties, etc., a support plate 3 is fixedly connected to the side wall of the support member 34, an airbag pad 15 is fixedly connected to the side of the mounting plate 36 close to the support plate 3, a valve assembly 38 is arranged on the mounting plate 36, an air charging pipe 35 is arranged between the valve assembly 38 and the airbag pad 15, a transmission arm 11 is hinged between the mounting plate 36 and the movable column 5, a movable disk 7 is slidably sleeved on the installation cylinder 2, a limiting assembly 39 is arranged on the side wall of the movable disk 7, a guide pipe 6 is arranged between the limiting assembly 39 and the valve assembly 38, and a fixed cylinder 4 is fixedly connected to the side wall of the installation cylinder 2, and an adjusting assembly 40 is arranged in the fixed cylinder 4.

[0029] The valve assembly 38 includes a valve housing 16 fixedly arranged on one side of the mounting plate 36, a communication port 29 and an air charging port 32 are respectively opened on both sides of the valve housing 16, a valve rod 30 is slidably arranged in the valve housing 16, a valve orifice 31 is opened at one end of the valve rod 30, one side of the valve rod 30 is fixedly connected to the support plate 3, the air charging pipe 35 and the guide pipe 6 are both fixedly connected to the valve housing 16, and the air charging pipe 35 and the guide pipe 6 are respectively correspondingly communicated with the air charging port 32 and the communication port 29.

[0030] The limiting assembly 39 includes a limiting cylinder 24 fixedly arranged on the side wall of the movable disk 7, a movable block 25 is slidably arranged in the limiting cylinder 24, a stop arm 26 is fixedly connected to one side of the movable block 25, a reset member 27 is sleeved on the stop arm 26 in the limiting cylinder 24, the reset member 27 can be a spring or an elastic metal sheet with telescopic properties, etc., one side of the stop arm 26 is correspondingly arranged with the clamping block 23, an air inlet hole 28 is opened on the movable disk 7 above the limiting cylinder 24, the air inlet hole 28 is communicated with the limiting cylinder 24, and one side of the guide pipe 6 is fixedly connected to the movable disk 7 and is communicated with the air inlet hole 28.

[0031] The adjusting assembly 40 includes a rotating rod 9 arranged in the installation cylinder 2, a transmission disk 17 is fixedly sleeved at one end of the rotating rod 9, transmission rods 18 are hinged on both sides of the transmission disk 17, one end of the transmission rod 18 is hinged to a driving block 22, and the driving block 22 is slidably arranged in the fixed cylinder 4.

[0032] One side of the driving block 22 is fixedly connected with an elastic member 19. The elastic member 19 can be a spring or an elastic metal sheet with telescopic properties. One side of the elastic member 19 is fixedly connected with a piston block 20. The piston block 20 is slidably arranged in the fixed cylinder 4. One side of the piston block 20 is fixedly connected with a stop column 21. One side of the top end of the stop column 21 is arranged in an arc surface structure. One end of the stop column 21 is slidably and penetratingly connected with the side wall of the fixed cylinder 4.

[0033] The top of the installation cylinder 2 is fixedly connected with a fixed disk 8. One side of the fixed disk 8 is slidably and penetratingly provided with a push rod 10. One side of the push rod 10 is fixedly connected with a movable disk 7. The bottom of the valve housing 16 is fixedly connected with an air supply pump 33. The air outlet ends of the air supply pump 33 are respectively arranged corresponding to the inflation port 32 and the communication port 29.

[0034] During the implementation of the present invention, the positioning disk 1 of the device is placed at the bottom of the foundation pit, and positioning and installation are realized under the action of the positioning column 14. Then, the push rod 10 is manually pressed down to drive the movable disk 7 to move downward. The stop arm 26 on the side of the movable disk 7 contacts the block 23 on the movable column 5 to drive the movable column 5 to move downward. During the downward movement of the movable column 5, the mounting plate 36 is driven to move horizontally through the transmission arm 11. At the same time, the telescopic column 13 elongates. When the support plate 3 on the side close to the side wall of the foundation pit first contacts the side wall of the foundation pit, the support plate 3 drives the valve rod 30 to move horizontally under the reverse acting force of the side wall of the foundation pit. When the valve orifice 31 on the valve rod 30 corresponds to the communication port 29, under the action of the air pump, high-pressure gas enters the limiting cylinder 24 through the air guide pipe 6 at one end of the communication port 29. The movable block 25 in the limiting cylinder 24 drives the stop arm 26 to move away from the movable column 5. The stop arm 26 is separated from the block 23. When the movable disk 7 continues to move downward, it no longer drives the movable column 5 on this side to move downward. At the same time, the movable column 5 is limited under the action of the stop column 21. This process realizes the support of one side of the foundation pit. Then, the movable disk 7 is continuously moved downward to repeat the above steps to realize the rapid support and installation of multiple sides of the foundation pit. This operation mode of the device only needs to manually move the push rod 10 to realize all-round support, with high installation efficiency, convenient operation and use. At the same time, if the side wall of the foundation pit is pressurized laterally by external force during the support process, the support plate 3 will drive the valve rod 30 to continue to move. When the valve orifice 31 is communicated with the inflation port 32, the airbag is inflated through the inflation pipe 35 under the action of the air pump, and the support force of one side of the support plate 3 can be quickly adjusted to ensure the stable support of the device, with flexible use and stronger practicability.

[0035] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A foundation pit support mechanism, including a positioning disk, characterized in that, It further includes: A positioning post disposed at the bottom of the positioning disk, and an installation cylinder is fixedly connected to the positioning disk; A support mechanism disposed on the side wall of the installation cylinder, including a telescopic cylinder fixedly disposed on the positioning disk, an activity post fixedly connected to the top of the telescopic cylinder, a clamping block fixedly connected to the side of the activity post close to the installation cylinder, a telescopic post fixedly connected to the side wall of the positioning disk, a mounting plate fixedly connected to one side of the telescopic post, a support member fixedly connected to the side wall of the mounting plate, a support plate fixedly connected to the side wall of the support member, an airbag pad fixedly connected to the side of the mounting plate close to the support plate, a valve assembly disposed on the mounting plate, an air charging pipe disposed between the valve assembly and the airbag pad, a transmission arm hinged between the mounting plate and the activity post, an activity disk slidably sleeved on the installation cylinder, a limit assembly disposed on the side wall of the activity disk, a guide air pipe disposed between the limit assembly and the valve assembly, and a fixed cylinder fixedly connected to the side wall of the installation cylinder, and an adjustment assembly is disposed in the fixed cylinder.

2. The foundation pit support mechanism according to claim 1, characterized in that, The valve assembly includes a valve housing fixedly disposed on one side of the mounting plate, a communication port and an air charging port are respectively opened on both sides of the valve housing, a valve rod is slidably disposed in the valve housing, a valve port is opened at one end of the valve rod, one side of the valve rod is fixedly connected to the support plate, the air charging pipe and the guide air pipe are both fixedly connected to the valve housing, and the air charging pipe and the guide air pipe are respectively correspondingly communicated with the air charging port and the communication port.

3. A foundation pit support mechanism according to claim 2, characterized in that, The limit assembly includes a limit cylinder fixedly disposed on the side wall of the activity disk, an activity block is slidably disposed in the limit cylinder, a stop arm is fixedly connected to one side of the activity block, a reset member is sleeved on the stop arm in the limit cylinder, one side of the stop arm is correspondingly disposed with the clamping block, an air inlet hole is opened on the activity disk above the limit cylinder, one side of the guide air pipe is fixedly connected to the activity disk and is communicated with the air inlet hole.

4. A foundation pit support mechanism according to claim 1, characterized in that, The adjustment assembly includes a rotating rod disposed in the installation cylinder, a transmission disk is fixedly sleeved at one end of the rotating rod, transmission rods are hinged on both sides of the transmission disk, and a driving block is hinged at one end of the transmission rod and is slidably disposed in the fixed cylinder.

5. A foundation pit support mechanism according to claim 4, characterized in that, One side of the driving block is fixedly connected to an elastic member, one side of the elastic member is fixedly connected to a piston block, the piston block is slidably disposed in the fixed cylinder, one side of the piston block is fixedly connected to a stop column, one side of the top end of the stop column is set as an arc surface structure, and one end of the stop column is slidably penetrated through the side wall of the fixed cylinder.

6. A foundation pit support mechanism according to claim 1, characterized in that A fixed disk is fixedly connected to the top of the installation cylinder, a push rod is slidably penetrated through one side of the fixed disk, and one side of the push rod is fixedly connected to the activity disk.

7. A foundation pit support mechanism according to claim 2, characterized in that, A gas supply pump is fixedly connected to the bottom of the valve housing, and the air outlet ends of the gas supply pump are respectively correspondingly disposed with the air charging port and the communication port.

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