Deep foundation pit supporting anti-collapse buffer protection equipment

Abstract

This invention discloses a deep foundation pit support and anti-collapse buffer protection device, belonging to the technical field. It includes a protection component and a triggering component. The protection component includes a base, an electric cylinder, a baffle, a load-bearing plate, and a first buffer member. The base includes a vertically arranged bottom plate and a vertical plate. The electric cylinder is located on the vertical plate and its free end is connected to the baffle. The baffle is slidably mounted on the bottom plate. The load-bearing plate is slidably connected to the baffle. The first buffer member connects the load-bearing plate and the baffle. The triggering component includes a main controller and a triggering mechanism. The main controller is connected to the triggering mechanism and the electric cylinder. The triggering mechanism is located inside the baffle. When the load-bearing plate slides under soil pressure, it can compress the first buffer member to accumulate elastic potential energy. When the load-bearing plate continues to slide, it can drive the main controller to control the electric cylinder to push the baffle towards the soil, realizing active adjustment of the baffle position. This addresses the technical problem of actively repairing collapses in a timely manner based on passive buffering, and reducing the risk of construction safety accidents.

Description

Technical Field

[0001] This invention relates to the field of foundation pit protection equipment technology, specifically to a deep foundation pit support and anti-collapse buffer protection device. Background Technology

[0002] During the construction of deep foundation pits, in order to prevent the collapse of the pit sidewalls due to soil stress release, groundwater seepage or external load disturbance, it is usually necessary to install support equipment on the pit sidewalls. The support equipment uses baffles and buffer elements to resist soil collapse. When soil collapse occurs, the baffles will squeeze the buffer elements to resist the soil deformation caused by the collapse.

[0003] However, existing deep foundation pit support equipment still has shortcomings. For example, the baffles and buffer elements of the support equipment can only passively absorb the impact force generated by soil collapse. The support equipment cannot autonomously adjust the position of the baffles according to the different degrees of collapse, which means that the soil collapse cannot be repaired in time when it is serious, which can easily lead to construction safety accidents. Summary of the Invention

[0004] The purpose of this invention is to overcome the above-mentioned technical deficiencies and propose a deep foundation pit support anti-collapse buffer protection device. This device solves the technical problem that in the prior art, the baffles and buffer elements of the support equipment can only passively absorb the impact force generated by soil collapse. The support equipment cannot autonomously adjust the position of the baffles according to the different degrees of collapse, which leads to the inability to repair the soil in time when the collapse is severe, and easily causes construction safety accidents.

[0005] To achieve the above-mentioned technical objectives, the present invention adopts the following technical solution: This invention provides a deep foundation pit support and anti-collapse buffer protection device, comprising: The protective assembly includes a base, an electric cylinder, a baffle, a load-bearing plate, and a first buffer. The base includes a vertically arranged base plate and a vertical plate. The electric cylinder is disposed on the vertical plate and its free end is connected to the baffle. The baffle is slidably disposed on the base plate. The load-bearing plate is slidably connected to the baffle. The first buffer connects the load-bearing plate and the baffle. The triggering component includes a main controller and a triggering mechanism. The main controller is connected to the triggering mechanism and the electric cylinder. The triggering mechanism is located inside the baffle. When the force plate slides a first distance under soil pressure, the force plate can compress the first buffer to accumulate elastic potential energy. When the force plate continues to slide a second distance, the force plate can drive the triggering mechanism to generate a sensing signal, so that the main controller controls the electric cylinder to push the baffle toward the soil.

[0006] In some embodiments, the triggering mechanism includes a slider and a trigger member. The trigger member is disposed on the baffle and connected to the main controller. The slider is slidably connected to the baffle. The force plate is spaced apart from the slider. When the force plate slides against the slider and drives the slider to move a second distance, the trigger member generates a sensing signal and transmits it to the main controller.

[0007] In some embodiments, the triggering mechanism further includes a first magnet and a second magnet, one end of the first magnet and the second magnet repel each other, and the other end is respectively movably disposed on both sides of the slider. When the slider slides toward the trigger, it can drive the first magnet and the second magnet to move away from each other to trigger the trigger to generate a sensing signal.

[0008] In some embodiments, the slider has a connecting flat groove and an inclined groove on both sides. When the slider slides toward the trigger, the first magnet and the second magnet slide from the flat groove into the inclined groove.

[0009] In some embodiments, the trigger is an infrared distance sensor. When the first magnet and the second magnet are not separated, the connection between the first magnet and the second magnet blocks the infrared rays emitted by the infrared distance sensor. When the first magnet and the second magnet are separated, the infrared rays emitted by the infrared distance sensor generate a sensing signal through the change in distance.

[0010] In some embodiments, the triggering mechanism further includes a second buffer member connected to the slider and the baffle. When the slider slides to trigger the trigger member to generate a sensing signal, the slider squeezes the second buffer member to accumulate elastic potential energy.

[0011] In some embodiments, a plurality of pin posts are provided on the side of the load-bearing plate facing the soil.

[0012] In some embodiments, the baffle is provided with two limiting blocks on the side facing the electric cylinder, and an anti-slip groove is formed between the two limiting blocks. The free end of the electric cylinder is provided with a positioning block, which is engaged with the anti-slip groove.

[0013] In some embodiments, the vertical plate is disposed in the middle of the base plate and the two are fixedly connected. The electric cylinder, the baffle and the triggering component are provided on both sides of the vertical plate along its thickness direction.

[0014] In some embodiments, the base further includes a connecting ring disposed at the top of the vertical plate.

[0015] Compared with existing technologies, the deep foundation pit support anti-collapse buffer protection device provided by the present invention, through the setting of a slidingly connected force plate, a first buffer component connecting the force plate and the baffle, and a trigger component located inside the baffle, allows the force plate to slide a first distance when subjected to soil pressure to compress the first buffer component and accumulate elastic potential energy, thereby achieving passive buffering and absorbing the impact force generated by soil collapse. When the force plate continues to slide a second distance, it can drive the trigger mechanism to generate a sensing signal and transmit it to the main controller, which in turn controls the electric cylinder to push the baffle towards the soil, thereby achieving active adjustment of the baffle position. This allows for graded response according to different degrees of collapse, and timely active repair of the collapse based on passive buffering. This effectively overcomes the technical problems of existing support equipment that can only passively absorb impact force and cannot autonomously adjust the baffle position according to the degree of collapse, resulting in the inability to repair the soil collapse in a timely manner when it is severe, which easily leads to construction safety accidents. Attached Figure Description

[0016] Figure 1 This is a structural schematic diagram of the protective device provided in one embodiment of the present invention; Figure 2 This is a structural schematic diagram of the protective device provided in an embodiment of the present invention from another perspective; Figure 3 yes Figure 2 An enlarged schematic diagram of part A in the middle; Figure 4 This is a schematic diagram of the connection between the slider and the first magnet provided in an embodiment of the present invention; Figure 5 This is a structural schematic diagram of the protective device provided in an embodiment of the present invention from another perspective; Figure 6 yes Figure 2 Enlarged schematic diagram of part B in the middle; Figure 7 This is a cross-sectional schematic diagram of the protective device provided in an embodiment of the present invention; Figure 8 yes Figure 2 An enlarged schematic diagram of section C; Figure 9 This is a schematic diagram of the connection between the vertical limiting bar and the horizontal movable block before the alarm is triggered, provided in an embodiment of the present invention. Figure 10 This is a schematic diagram of the connection between the vertical limiting bar and the horizontal movable block provided in an embodiment of the present invention when an alarm is about to be triggered; Figure 11 yes Figure 2 An enlarged schematic diagram of section D in the middle; Figure 12 This is a bottom schematic diagram of the alarm provided in an embodiment of the present invention. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0018] To address the technical problem that existing support equipment's baffles and buffer elements can only passively absorb the impact force generated by soil collapse, and the support equipment cannot autonomously adjust the position of the baffles according to different degrees of collapse, resulting in the inability to repair severe soil collapses in a timely manner and easily causing construction safety accidents, this invention provides a deep foundation pit support anti-collapse buffer protection device that can achieve graded response according to different degrees of collapse, and actively repair collapses in a timely manner on the basis of passive buffering, thereby reducing the risk of construction accidents.

[0019] It should be noted that the deep foundation pit support and anti-collapse buffer protection equipment described in this invention is used for, but not limited to, deep foundation pit protection. For ease of explanation, this invention will only use the application of the deep foundation pit support and anti-collapse buffer protection equipment in deep foundation pit protection as an example. The principle of the deep foundation pit support and anti-collapse buffer protection equipment in other types of equipment is essentially the same as that in deep foundation pit protection, and will not be elaborated here.

[0020] Please see Figures 1 to 3 , Figure 1 This is a schematic diagram of a deep foundation pit support anti-collapse buffer protection device according to an embodiment of the present invention. The deep foundation pit support anti-collapse buffer protection device includes a protection component 1 and a triggering component 2. The protection component 1 includes a base 11, an electric cylinder 12, a baffle 13, a force-bearing plate 14, and a first buffer component 15. The base 11 includes a vertically arranged bottom plate 111 and a vertical plate 112. The bottom plate 111 is placed horizontally at the bottom of the foundation pit, and the vertical plate 112 is vertically fixed to the bottom plate 111. The electric cylinder 12 is fixedly installed on the side of the vertical plate 112 facing the sidewall of the foundation pit, and the free end of the electric cylinder 12 is connected to the baffle 13. The baffle 13 is slidably disposed on the bottom plate 111 and can slide along the bottom plate 111 towards or away from the soil. It can be understood that the baffle 13 is placed on the bottom plate 111, and under the drive of the electric cylinder 12, the baffle 13 can reciprocate on the surface of the bottom plate 111. The force plate 14 is slidably connected to the side of the baffle 13 facing the soil. The first buffer 15 is connected between the force plate 14 and the baffle 13. The first buffer 15 can be an elastic element such as a spring, a hydraulic damper or a rubber buffer pad. In this embodiment, a spring is preferred.

[0021] Triggering component 2 includes a main controller and a triggering mechanism 21. The main controller is installed inside the baffle 13 and is not shown in the figure. The main controller is connected to the triggering mechanism 21 and the electric cylinder 12 via signal lines. The triggering mechanism 21 is located inside the baffle 13. The main controller can be a conventional PLC controller or a microcontroller control module, used to receive the sensing signals from the triggering mechanism 21 and control the extension and retraction of the electric cylinder 12.

[0022] The working process of this embodiment is roughly as follows: During the process of the force-bearing plate 14 sliding a first distance under soil pressure, the force-bearing plate 14 compresses the first buffer member 15 to accumulate elastic potential energy. At this time, the device is in a passive buffering stage, absorbing the impact force generated by soil collapse through the elastic deformation of the first buffer member 15. When the soil pressure continues to increase and the force-bearing plate 14 continues to slide a second distance, the force-bearing plate 14 drives the trigger mechanism 21 to generate a sensing signal. The sensing signal is transmitted to the main controller, which controls the electric cylinder 12 to push the baffle 13 towards the soil, realizing the active adjustment of the position of the baffle 13, thereby actively repairing the soil collapse. The sum of the first distance and the second distance constitutes the total stroke of the force-bearing plate 14 from its initial position to the triggering of active adjustment.

[0023] Please see Figures 2 to 4 , Figure 3 This is a schematic diagram of the triggering mechanism in one embodiment of the present invention. The triggering mechanism 21 includes a slider 211, a trigger element 212, a first magnet 213, a second magnet 214, and a second buffer element 215.

[0024] The trigger 212 is fixedly mounted inside the baffle 13 and connected to the main controller via a signal line. A small battery can be installed inside the baffle 13 to power the main controller and the trigger 212. The slider 211 is slidably connected to a groove inside the baffle 13 to allow for stable reciprocating sliding. A preset gap is provided between the force plate 14 and the slider 211, which is equal to a first distance, to ensure that the force plate 14 only contacts the slider 211 after compressing the first buffer 15 to a certain extent. When the force plate 14 slides against the slider 211 and continues to drive the slider 211 to move a second distance, the trigger 212 generates a sensing signal and transmits it to the main controller.

[0025] One end of the first magnet 213 and the second magnet 214 repel each other (i.e., like poles face each other), while the other ends are movably disposed on both sides of the slider 211. Both sides of the slider 211 are provided with connecting flat grooves 2111 and inclined grooves 2112, with a smooth transition between the flat grooves 2111 and 2112. When the slider 211 is in its initial position, the first magnet 213 and the second magnet 214 are located in the flat grooves 2111 on both sides. At this time, the ends of the first magnet 213 and the second magnet 214 that are close to each other abut against each other and have magnetic repulsion. Due to the limiting relationship of the flat grooves 2111, the first magnet 213 and the second magnet 214 cannot temporarily move away from each other. When the slider 211 slides toward the trigger 212, the positions of the first magnet 213 and the second magnet 214 in the lateral direction remain unchanged. As the slider 211 slides, the figure-eight grooves 2112 on both sides of the slider 211 gradually align with the first magnet 213 and the second magnet 214. The first magnet 213 and the second magnet 214 gradually slide into the grooves 2112 on both sides of the slider 211. Due to the guiding effect of the grooves 2112, the first magnet 213 and the second magnet 214 move away from each other on both sides of the slider 211.

[0026] The trigger 212 is an infrared distance sensor, located on the side of the slider 211 facing the sliding direction of the trigger 212. When the first magnet 213 and the second magnet 214 are not separated, their connection blocks the infrared rays emitted by the infrared distance sensor, and the distance value detected by the infrared distance sensor is a fixed value or infinity (indicating that it is blocked). When the first magnet 213 and the second magnet 214 are separated, the infrared rays emitted by the infrared distance sensor pass through the gap between them, and the distance value detected by the infrared distance sensor changes (becomes smaller), thereby generating a sensing signal and transmitting it to the main controller.

[0027] The second buffer 215 is connected to the slider 211 and the baffle 13. The second buffer 215 can be a spring. When the slider 211 triggers the trigger 212 to generate a sensing signal during sliding, the slider 211 compresses the second buffer 215 to accumulate elastic potential energy to prevent the slider 211 from having a rigid collision with the baffle 13. At the same time, the elastic restoring force of the second buffer 215 can help the slider 211 reset after the soil pressure decreases, so as to prepare for the next trigger.

[0028] Please see Figure 1Two limiting blocks 131 are provided on the side of the baffle 13 facing the electric cylinder 12, and an anti-slip groove is formed between the two limiting blocks 131. A positioning block 121 is provided on the free end of the electric cylinder 12, and the positioning block 121 is engaged in the anti-slip groove. In this embodiment, by setting the engaging structure formed by the positioning block 121 and the anti-slip groove, the electric cylinder 12 can transmit thrust to the baffle 13 when pushing the baffle 13, and at the same time prevent the pushing part of the electric cylinder 12 from deviating relative to the baffle 13, ensuring that the baffle 13 moves stably in the horizontal direction.

[0029] Please see Figure 3 Both limiting blocks 131 protrude from the surface of the baffle 13. Both limiting blocks 131 have hollow structures inside. The aforementioned second buffer 215 is located inside the limiting block 131, so that the force plate 14 and the slider 211 have a long stroke, so that the slider 211 can stably trigger the trigger 212 to work when sliding.

[0030] Please see Figure 1 The vertical plate 112 is positioned in the middle of the base plate 111, and the two are fixedly connected by welding or bolts. Electric cylinders 12, baffles 13, and triggering components 2 are provided on both sides of the vertical plate 112 along its thickness direction, forming a symmetrical double-sided protection structure that can simultaneously protect both sides of the pit. The base 11 also includes a connecting ring 113 located at the top of the vertical plate 112. The connecting ring 113 can be used to connect hoisting equipment via ropes, facilitating the handling and installation positioning of the entire protective equipment.

[0031] In one embodiment, please refer to Figure 1 Multiple pins 141 are provided on the side of the load-bearing plate 14 facing the soil. The pins 141 are bullet-shaped and evenly distributed on the surface of the load-bearing plate 14. When the load-bearing plate 14 is subjected to soil pressure, the pins 141 can be inserted into the soil, increasing the friction between the load-bearing plate 14 and the soil, preventing relative slippage between the load-bearing plate 14 and the soil, and improving the stability of the support.

[0032] In one embodiment, please refer to Figure 5 and Figure 6 The end of the electric cylinder 12 is mounted on the vertical plate 112 via a buffer spring 19. Specifically, the vertical plate 112 has a groove, and the buffer spring 19 is located in the groove. The outer wall of the electric cylinder 12 has multiple limiting pins 122, which are used to prevent the electric cylinder 12 from detaching from the vertical plate 112. When the electric cylinder 12 is working, the reaction force applied by the baffle 13 to the electric cylinder 12 drives the electric cylinder 12 to squeeze the buffer spring 19, so as to avoid the electric cylinder 12 being easily damaged by rigid force.

[0033] As can be seen from the above, the load-bearing plate 14 of this application not only has the function of buffering soil pressure resistance, but also can act as a triggering element to trigger the operation of the electric cylinder 12, so as to trigger the electric cylinder 12 to actively push the baffle 13 towards the soil to resist pressure when the soil further intensifies the collapse.

[0034] Please see Figure 1 , Figure 1 The baffle 13 in the illustrated embodiment has nine movable slots on the side facing the soil. Nine force-bearing plates 14 are slidably connected to these slots. The movable slots corresponding to the four force-bearing plates 14 at the corners of the baffle 13 are equipped with corresponding trigger mechanisms 21. Therefore, there are four sets of trigger mechanisms 21 inside one baffle 13 in this embodiment. When any trigger mechanism 21 generates a sensing signal, the main controller controls all the electric cylinders 12 on the corresponding side of the vertical plate 112 to operate, simultaneously pushing the baffle 13 towards the soil to counteract excessive soil collapse. The remaining force-bearing plates 14 on the baffle 13 are slidably connected to the baffle 13 via a first buffer member 15, which can be used to provide elastic cushioning for the soil.

[0035] Please see Figures 7 to 12 A load-bearing plate 16 is located at the top center of the baffle 13. The structure and function of the load-bearing plate 16 are the same as those of the load-bearing plate 14, the main difference being that the load-bearing plate 16 triggers the alarm 18 when it slides inwards towards the baffle 13, while the load-bearing plate 14 triggers the electric cylinder 12. An actuating mechanism 17 is installed inside the movable groove of the baffle 13 corresponding to the load-bearing plate 16. An alarm 18 is located on the top of the baffle 13. When the load-bearing plate 16 is compressed by the soil and slides inwards towards the baffle 13 a certain distance, it triggers the actuating mechanism 17, which in turn triggers the alarm 18 to sound an alarm to alert construction personnel. Furthermore, the alarm 18 is connected to the main controller, which simultaneously sends the alarm signal to the command center, facilitating timely on-site inspection. The alarm has corresponding location information, allowing the command center to directly locate the equipment, thus improving work efficiency.

[0036] Please see Figures 7 to 12The triggering mechanism 17 includes a third buffer 171, a vertical limiting bar 172, a horizontal movable block 173, and an energy storage spring 174. The third buffer 171 is placed in a groove inside the baffle 13. The third buffer 171 is a spring, with one end abutting against the support plate 16 and the other end abutting against the baffle 13. When the support plate 16 is compressed by the soil and slides towards the inside of the baffle 13, the support plate 16 can compress the third buffer 171. When the support plate 16 travels a third distance, it can abut against the bottom of the vertical limiting bar 172. If the soil subsidence further intensifies at this time, the support plate 16 can continue to move after abutting against the vertical limiting bar 172. The bottom of the vertical limiting bar 172 has a first driving inclined surface 175. The rectangular edge of the support plate 16 abuts against the first driving inclined surface 175, driving the vertical limiting bar 172 to slide upward.

[0037] Please see Figure 9 and Figure 10 A through hole 176 is provided in the middle of the vertical limiting bar 172. The top wall of the through hole 176 is a second driving slope 177. One end of the horizontal movable block 173 is stationary, abutting against the outer wall of the vertical limiting bar 172 before triggering. The other end of the horizontal movable block 173 is connected to a compressed energy storage spring 174. This end of the horizontal movable block 173 has a third driving slope 178. When the vertical limiting bar 172 slides upward, causing the third driving slope 178 and the second driving slope 177 to be on the same slope, the energy storage spring 174 releases its elastic force to drive the horizontal movable block 173 to slide and pass through the through hole 176 of the vertical limiting bar 172, reaching the bottom of the alarm 18. The horizontal movable block 173 has a built-in active switch 179. The top of the active switch 179 has a conductive protrusion 180, and the two sides of the conductive protrusion 180 have first magnetic absorbing pieces 181.

[0038] Please see Figure 11 and Figure 12 The bottom of the alarm 18 has a second magnetic absorbing piece 182 and a conductive groove 183, with a conductive pin in the conductive groove 183. When the horizontal movable block 173 slides through the through hole to the bottom of the alarm 18, the second magnetic absorbing piece 182 magnetically attracts the first magnetic absorbing piece 181, causing the movable switch 179 to move upward. The conductive protrusion 180 on the movable switch 179 is electrically connected to the conductive pin in the conductive groove 183, thereby triggering the alarm 18 to be electrically turned on, and the alarm 18 starts to work.

[0039] To better understand this invention, the following is combined with... Figures 1 to 12 The technical solution of the present invention will be described in detail below: In practical applications, the deep foundation pit support and anti-collapse buffer protection device of the present invention is placed on the side wall of the deep foundation pit, with the stress plate 14 facing the soil and the bottom plate 111 placed horizontally at the bottom of the foundation pit. In the initial state, the first buffer member 15 is in its natural length or pre-compressed state, and a preset gap is maintained between the stress plate 14 and the slider 211.

[0040] When the soil on the sidewall of the foundation pit slightly collapses due to stress release or external disturbance, the soil pressure acts on the load-bearing plate 14. The load-bearing plate 14 slides a first distance along the baffle 13 toward the vertical plate 112. During this process, the load-bearing plate 14 compresses the first buffer member 15, which undergoes elastic deformation to accumulate elastic potential energy and absorb the impact force generated by the soil collapse. The equipment is in a passive buffering stage. At this time, the load-bearing plate 14 has not yet contacted the slider 211, and the triggering mechanism 21 has not been triggered.

[0041] As soil collapse intensifies and soil pressure increases further, the force plate 14 continues to slide while the first buffer 15 is further compressed, until the force plate 14 abuts against the slider 211 and drives the slider 211 to move a second distance toward the trigger 212. During the sliding process of the slider 211, the first magnet 213 and the second magnet 214 in the flat grooves 2111 on both sides are guided away from each other by the inclined groove 2112, and the distance value detected by the infrared distance sensor changes, generating a sensing signal and transmitting it to the main controller.

[0042] After receiving the sensing signal, the main controller immediately controls the electric cylinder 12 to start. The free end of the electric cylinder 12 extends and pushes the baffle 13 toward the soil through the cooperation of the positioning block 121 and the anti-slip groove, compensating for the space caused by the soil collapse and realizing the active adjustment of the position of the baffle 13.

[0043] The distance that the electric cylinder 12 pushes the baffle 13 can be set by the main controller according to the actual degree of collapse, for example, it can be set to 5cm to 20cm. When the soil pressure decreases, the elastic restoring force of the first buffer 15 and the second buffer 215 can push the force plate 14 and the slider 211 to reset. The first magnet 213 and the second magnet 214 move closer together under the action of magnetic force and slide back to the flat groove 2111. The sensing signal of the infrared distance sensor returns to the initial state, and the main controller controls the electric cylinder 12 to stop or reset.

[0044] The vertical plate 112 is equipped with protective components 1 and triggering components 2 on both sides, forming a double-sided symmetrical protection, which can simultaneously deal with the risk of collapse of the side walls on both sides of the foundation pit and improve protection efficiency.

[0045] The specific embodiments of the present invention described above do not constitute a limitation on the scope of protection of the present invention. Any other corresponding changes and modifications made in accordance with the technical concept of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A deep foundation pit support and anti-collapse buffer protection device, characterized in that, include: The protective assembly includes a base, an electric cylinder, a baffle, a load-bearing plate, and a first buffer. The base includes a vertically arranged base plate and a vertical plate. The electric cylinder is disposed on the vertical plate and its free end is connected to the baffle. The baffle is slidably disposed on the base plate. The load-bearing plate is slidably connected to the baffle. The first buffer connects the load-bearing plate and the baffle. The triggering component includes a main controller and a triggering mechanism. The main controller is connected to the triggering mechanism and the electric cylinder. The triggering mechanism is located inside the baffle. When the force plate slides a first distance under soil pressure, the force plate can compress the first buffer to accumulate elastic potential energy. When the force plate continues to slide a second distance, the force plate can drive the triggering mechanism to generate a sensing signal, so that the main controller controls the electric cylinder to push the baffle toward the soil.

2. The deep foundation pit support and anti-collapse buffer protection device according to claim 1, characterized in that, The triggering mechanism includes a slider and a trigger element. The trigger element is disposed on the baffle and connected to the main controller. The slider is slidably connected to the baffle. The force plate is spaced apart from the slider. When the force plate slides against the slider and drives the slider to move a second distance, the trigger element generates a sensing signal and transmits it to the main controller.

3. The deep foundation pit support and anti-collapse buffer protection device according to claim 2, characterized in that, The triggering mechanism further includes a first magnet and a second magnet. One end of the first magnet and the second magnet repel each other, and the other end is respectively movably disposed on both sides of the slider. When the slider slides toward the trigger, it can drive the first magnet and the second magnet to move away from each other to trigger the trigger to generate a sensing signal.

4. The deep foundation pit support and anti-collapse buffer protection device according to claim 3, characterized in that, Both sides of the slider are provided with connecting flat grooves and inclined grooves. When the slider slides toward the trigger, the first magnet and the second magnet slide from the flat groove into the inclined groove.

5. The deep foundation pit support and anti-collapse buffer protection device according to claim 4, characterized in that, The trigger is an infrared distance sensor. When the first magnet and the second magnet are not separated, the connection between the first magnet and the second magnet blocks the infrared light emitted by the infrared distance sensor. When the first magnet and the second magnet are separated, the infrared light emitted by the infrared distance sensor generates a sensing signal through the change in distance.

6. The deep foundation pit support and anti-collapse buffer protection device according to claim 2, characterized in that, The triggering mechanism further includes a second buffer, which connects the slider and the baffle. When the slider slides to trigger the trigger to generate a sensing signal, the slider squeezes the second buffer to accumulate elastic potential energy.

7. The deep foundation pit support and anti-collapse buffer protection device according to claim 1, characterized in that, The side of the load-bearing plate facing the soil is provided with multiple pin posts.

8. The deep foundation pit support and anti-collapse buffer protection device according to claim 1, characterized in that, Two limiting blocks are provided on the side of the baffle facing the electric cylinder, and an anti-slip groove is formed between the two limiting blocks. A positioning block is provided on the free end of the electric cylinder, and the positioning block is engaged with the anti-slip groove.

9. The deep foundation pit support and anti-collapse buffer protection device according to claim 1, characterized in that, The vertical plate is located in the middle of the base plate and the two are fixedly connected. The electric cylinder, the baffle and the triggering component are provided on both sides of the vertical plate along its thickness direction.

10. The deep foundation pit support and anti-collapse buffer protection device according to claim 1, characterized in that, The base also includes a connecting ring located at the top of the vertical plate.

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