A foundation pit protection mechanism for highway bridge construction and a foundation pit supporting method

Abstract

The application belongs to the technical field of foundation pit protection, in particular to a foundation pit protection mechanism and method for highway bridge construction, which comprises a protection plate, a connecting hole is formed on the surface of the protection plate, a connecting rod is fixedly installed on the surface of the protection plate, the connecting rod is matched with the connecting hole, an installation cavity is formed in the protection plate, a power mechanism is arranged in the installation cavity, and a spiral positioning rod is connected to the output end of the power mechanism; the connecting hole on the surface of another protection plate is inserted on the connecting rod on the surface of the fixed protection plate to connect multiple connecting plates (the angle between the connecting rod and the connecting hole can be adjusted in rotation), thereby extending the protection range of the protection plate, facilitating the arrangement of the protection plate around the foundation pit of different specifications of highway bridge construction, and when the protection plate needs to be disassembled, the power mechanism is started again, the spiral positioning rod is reversed, and an upward force is applied to the protection plate, thereby completing the disassembly of the protection plate.

Description

Technical Field

[0001] This invention belongs to the field of foundation pit protection technology, specifically a foundation pit protection mechanism and foundation pit support method for highway bridge construction. Background Technology

[0002] Support is a set of measures to support, reinforce and protect the sidewalls and surrounding environment in order to ensure the safety of underground structure construction and the surrounding environment of the foundation pit.

[0003] However, existing technologies often have the following drawbacks: When highway bridges are under construction, protective mechanisms need to be installed on the outside. However, the traditional methods for installing protective mechanisms are diverse and complicated, which leads to low installation efficiency and the inability to quickly deploy protective measures around the highway bridge construction site, thus increasing the probability of accidents.

[0004] Therefore, the present invention provides a foundation pit protection mechanism and foundation pit support method for highway bridge construction. Summary of the Invention

[0005] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0006] The technical solution adopted by the present invention to solve its technical problem is as follows: The present invention provides a foundation pit protection mechanism for highway bridge construction, including a protective plate, a connecting hole on the surface of the protective plate, a connecting rod fixedly installed on the surface of the protective plate, the connecting rod being adapted to the connecting hole, an installation cavity inside the protective plate, a power mechanism inside the installation cavity, and a spiral positioning rod connected to the output end of the power mechanism.

[0007] Currently, when constructing highway bridges, protective mechanisms need to be installed around the perimeter. However, traditional methods for installing these mechanisms are varied and complex, leading to low installation efficiency and an inability to quickly establish protection around the construction site. This increases the probability of accidents. The protective plate in this invention is installed by transporting it to the vicinity of the highway bridge construction site, aligning the spiral positioning rod with the soil surface, and turning on the power mechanism. The output of the power mechanism then drives the spiral positioning rod to rotate. As the spiral positioning rod rotates on the soil surface, it continuously spirals into the soil. Once the spiral positioning rod is completely embedded in the soil, the power mechanism is turned off. The switch allows for quick fixing of the protective plate, enabling rapid deployment around highway bridge construction sites and reducing the risk of accidents. When the protective plate's coverage needs to be extended, the connecting holes on another protective plate are inserted into the connecting rods on the already fixed protective plate, thus connecting multiple plates (the angle between the connecting rods and connecting holes can be adjusted by rotation), thereby extending the protective plate's coverage. This facilitates the deployment of protective plates around construction pits of different specifications for highway bridges. To dismantle the protective plate, the power mechanism is restarted, causing the spiral positioning rod to reverse and applying an upward force to the protective plate, thus completing its removal.

[0008] Preferably, the protective plate has an installation groove on its surface, and a rotating shaft is fixedly installed on the inner wall of the installation groove. A rotating support plate is rotatably installed on the surface of the rotating shaft (the rotation angle of the rotating support plate is adjustable and can be fixed in the rotated position after adjustment). In order to increase the stability of the protective plate after installation, the rotating support plate in the installation groove is rotated so that the support plate forms an angle with the ground. When wild animals collide with the protective plate at night, the combination of the support plate and the ground can provide a strong support for the protective plate, preventing the protective plate from collapsing after a violent impact.

[0009] Preferably, an extension support plate is slidably mounted on the surface of the rotating support plate. A set of positioning holes are formed on the surface of the rotating support plate. A positioning insert is slidably mounted in the extension support plate, with both ends of the positioning insert matching the positioning holes. A spring is fixedly mounted on the surface of the positioning insert, and the other end of the spring is fixedly connected to the surface of the extension support plate. When the terrain on one side of the protective plate is too low or too high, the positioning insert is pulled. As the positioning insert moves, the spring is stretched and moves away from the positioning hole, releasing the fixation on the extension support plate. Then, the extension support plate is slid to a suitable position, and the positioning insert is released. The spring then drives the positioning insert to reset and re-insert into the adjusted positioning hole, fixing the extension support plate in place. This adjusts the length of the rotating support plate that can support the protective plate, providing good support in various terrains and improving the stability of the protective plate during use.

[0010] Preferably, a second spring is fixedly installed on the inner surface of the spiral positioning rod, and a top rod is fixedly installed on the other end of the second spring. A plug is threaded onto the inner surface of the spiral positioning rod, and a protrusion is fixedly installed on the surface of the plug. When the spiral positioning rod is normally screwed into the soil, the resistance between the protrusion and the soil cooperates to allow the plug to be screwed into the spiral positioning rod more effectively. When the spiral positioning rod is reversed for removal, the resistance between the protrusion and the soil cooperates (the soil is squeezed towards the spiral positioning rod and the protrusion under the action of gravity), causing the plug to fall out of the spiral positioning rod. Then, the second spring drives the top rod to pop out and abut against the soil, applying an upward reaction force to the spiral positioning rod, assisting the dismantling personnel in removing the protective plate, thereby improving the removal efficiency of the protective plate.

[0011] Preferably, the protective plate has a water pipe (connected to a tap water source) inside, and a pair of spray pipes connected to the water pipe are provided on the surface of the protective plate. Each spray pipe has an atomizing component inside, a rotating rod is rotatably mounted on the inner wall of the spray pipe, a spiral plate is fixedly mounted on the surface of the rotating rod, and a set of diffuser plates is fixedly mounted on the surface of the rotating rod in a wavy pattern. When the valve of the water pipe is opened, the water in the pipe is atomized by the atomizing component and sprayed out along the spray pipe to suppress dust in the air at the construction site of the highway bridge foundation pit. When the atomized mist passes through the spiral plate in the spray pipe, it interacts with the spiral plate to drive the rotating rod to rotate. The rotation of the rotating rod drives the diffuser plates to rotate, thereby diffusing the mist, increasing the spraying range, and achieving a better dust suppression effect.

[0012] Preferably, the surface of the protective plate is connected to a collecting component via an automatic lifting mechanism. A connecting pipe is installed within the protective plate, and a one-way valve is installed inside the connecting pipe. One end of the connecting pipe within the protective plate is fixedly connected to a water pipe, while the end of the connecting pipe away from the water pipe is located inside the collecting component. A water inlet is provided at this end of the connecting pipe. An electric telescopic rod is fixedly installed on the surface of the collecting component, and a connecting component is fixedly installed at the output end of the electric telescopic rod. A pressing plate is fixedly installed at the other end of the connecting component, and the pressing plate is slidably and sealingly connected to the collecting component. The surface of the extrusion plate is provided with a water inlet mechanism. When it rains, the rainwater falls on the surface of the extrusion plate and enters the collection component through the water inlet mechanism. After the collection component collects the rainwater, the automatic lifting mechanism connects the collection component to the connecting pipe. After the weather clears up, the electric telescopic rod is activated, causing the output end of the electric telescopic rod to retract and drive the connecting component to move. The connecting component drives the extrusion plate to squeeze the space inside the collection component, so that the rainwater collected in the collection component enters the water pipe along the connecting pipe and is finally atomized by the atomizing component, thereby realizing the recycling of rainwater and saving domestic water.

[0013] Preferably, the automatic lifting mechanism includes a protruding plate fixedly connected to the surface of the protective plate, a spring three fixedly installed on the surface of the protruding plate, and the other end of the spring three fixedly connected to the lower surface of the collecting component. The collecting component is slidably sealed to the surface of the connecting pipe. When a certain amount of water accumulates in the collecting component, the weight of the collecting component and the rainwater presses the spring three, and then the collecting component slides on the surface of the connecting pipe. The water inlet of the connecting pipe is then exposed inside the collecting component and communicates with the inside of the collecting component, so as to avoid the rainwater in the collecting component being used preferentially when atomization is needed later, thus achieving the effect of saving water.

[0014] Preferably, the water inlet mechanism includes a set of water inlet holes formed on the surface of the extrusion plate. Multiple pairs of elastic strips are fixedly installed on the surface of the extrusion plate, and a connecting rod is fixedly installed on the surface of one pair of elastic strips. A buoyancy sealing plate is fixedly installed on the lower surface of the connecting rod. After rainwater falls on the surface of the extrusion plate, it enters the collection device through the water inlet holes. When the electric telescopic rod drives the extrusion plate to squeeze the space inside the collection device, the buoyancy sealing plate comes into contact with the rainwater inside the collection device. As the extrusion plate moves continuously, the buoyancy sealing plate abuts against the lower surface of the extrusion plate, blocking the water inlet holes, so that the inside of the collection device is in a sealed state. This allows rainwater to enter the collection device normally through the extrusion plate without affecting the sealing and squeezing effect of the extrusion plate.

[0015] Preferably, the free end of the extended support plate is provided with a support rod, and the surface of the support rod is provided with a set of equally spaced grooves, which are arranged in an inverted V shape; the V-shaped grooves can increase the friction when the support rod contacts the ground, thereby improving the stability when supporting the protective plate.

[0016] A method for foundation pit support in highway bridge construction, the method employing the aforementioned foundation pit protection mechanism for highway bridge construction, the method comprising the following steps:

[0017] S1: Before the construction of highway bridges, the geological conditions of the foundation pit are investigated and explored to determine the geological conditions in the construction area. Based on the geological conditions in different construction areas, the construction site is compacted.

[0018] S2: When constructing a highway bridge, install a foundation pit protection mechanism for the highway bridge construction, specifically including the following steps:

[0019] S21: When installing the protective plate, transport the protective plate to the construction site of the highway bridge that needs protection, point the spiral positioning rod towards the soil surface and turn on the power mechanism switch, so that the output end of the power mechanism drives the spiral positioning rod to rotate into the soil. After the spiral positioning rod is completely inserted into the soil, turn off the power mechanism switch to complete the quick fixing of the protective plate.

[0020] S22: In order to increase the stability of the protective plate after installation, rotate the rotating support plate in the mounting slot so that the rotating support plate forms an angle with the ground. At this time, the rotating support plate combined with the ground can provide support for the protective plate and reduce the collapse of the protective plate after being subjected to violent impact.

[0021] S23: When the terrain on one side of the protective plate is too low or too high, pull the positioning plate. When the positioning plate moves, the tension spring will also leave the positioning hole, releasing the fixation of the extension support plate. Then slide the extension support plate to the appropriate position and release the positioning plate. The positioning plate will reset and be reinserted into the adjusted positioning hole to fix the extension support plate. Adjust the length of the rotating support plate. It can provide good support in various terrains and improve the stability of the protective plate during use.

[0022] S3: When construction is completed and the protective plate needs to be removed, restart the power mechanism to reverse the spiral positioning rod and apply an upward force to the protective plate, thereby completing the rapid removal of the protective plate.

[0023] Currently, when constructing highway bridges, protective mechanisms need to be installed on the perimeter. However, traditional methods for installing these mechanisms are diverse and complex, leading to low installation efficiency and an inability to quickly establish protection around the construction site, thus increasing the probability of accidents. This invention protects the foundation pit of highway bridge construction using the aforementioned method. It enables rapid deployment around the construction site, reducing the likelihood of accidents. When the protective plate needs to be removed, the power mechanism is restarted, causing the spiral positioning rod to reverse and applying an upward force to the protective plate, thereby completing its removal and improving the dismantling efficiency of the protective mechanism.

[0024] The beneficial effects of this invention are as follows:

[0025] 1. The present invention discloses a foundation pit protection mechanism and foundation pit support method for highway bridge construction. During installation, the protective plate is transported to the highway bridge construction site requiring protection. The spiral positioning rod is aligned with the soil surface, and the power mechanism is switched on. The output end of the power mechanism drives the spiral positioning rod to rotate. As the spiral positioning rod rotates on the soil surface, it continuously spirals into the soil. Once the spiral positioning rod is fully inserted into the soil, the power mechanism is switched off, completing the rapid fixing of the protective plate. This allows for quick deployment around the highway bridge construction site, reducing the likelihood of accidents. When the protection range of the protective plate needs to be extended, the connecting holes on the surface of another protective plate are inserted into the connecting rods on the already fixed protective plate surface, thus connecting multiple connecting plates (the angle between the connecting rods and connecting holes can be adjusted by rotation), thereby extending the protection range of the protective plate. This facilitates the deployment of protective plates around foundation pits of different specifications for highway bridge construction. When the protective plate needs to be disassembled, the power mechanism is restarted, causing the spiral positioning rod to reverse, and an upward force is applied to the protective plate, thus completing its removal.

[0026] 2. The foundation pit protection mechanism and foundation pit support method for highway bridge construction described in this invention, in order to increase the stability of the protective plate after installation, rotates the rotating support plate in the installation groove so that the support plate forms an angle with the ground. When wild animals collide with the protective plate at night, the combination of the support plate and the ground can provide a strong support for the protective plate, preventing the protective plate from collapsing after being violently impacted. Attached Figure Description

[0027] The invention will now be further described with reference to the accompanying drawings.

[0028] Figure 1 This is a perspective view of the entire invention;

[0029] Figure 2 This is a front view of the protective plate of the present invention;

[0030] Figure 3 This is a cross-sectional view of the spiral positioning rod of the present invention;

[0031] Figure 4 This is a schematic diagram of the rotating support plate in this invention;

[0032] Figure 5 This is a schematic diagram of the nozzle structure in this invention;

[0033] Figure 6 This is a schematic diagram of the structure of the collecting component in this invention;

[0034] Figure 7 This is an enlarged view of the water inlet hole in this invention;

[0035] Figure 8This is a schematic diagram of the groove structure in this invention;

[0036] Figure 9 This is a flowchart of the method of the present invention.

[0037] In the diagram: 1. Protective plate; 2. Mounting cavity; 3. Power mechanism; 4. Spiral positioning rod; 5. Connecting rod; 6. Connecting hole; 7. Mounting groove; 8. Rotating shaft; 9. Rotating support plate; 10. Extension support plate; 11. Support rod; 12. Positioning hole; 13. Positioning insert plate; 14. Spring 1; 15. Spring 2; 16. Top rod; 17. Plug; 18. Protrusion; 19. Spray nozzle; 20. Rotating rod; 21. Spiral plate; 22. Diffuser plate; 23. Collector; 24. Electric telescopic rod; 25. Connector; 26. Extrusion plate; 27. Connecting pipe; 28. Water inlet; 29. ​​Protrusion plate; 30. Spring 3; 31. Spring bar; 32. Connecting rod; 33. Buoyancy sealing plate; 34. Groove; 35. Water inlet hole. Detailed Implementation

[0038] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0039] Example 1: As Figures 1 to 7 As shown in the embodiment of the present invention, a foundation pit protection mechanism for highway bridge construction includes a protective plate 1. The surface of the protective plate 1 is provided with a connecting hole 6. A connecting rod 5 is fixedly installed on the surface of the protective plate 1. The connecting rod 5 is adapted to the connecting hole 6. An installation cavity 2 is provided inside the protective plate 1. A power mechanism 3 is provided inside the installation cavity 2. The output end of the power mechanism 3 is connected to a spiral positioning rod 4.

[0040] Currently, when constructing highway bridges, protective mechanisms need to be installed on the perimeter. However, traditional methods for installing these mechanisms are varied and complex, leading to low installation efficiency and an inability to quickly establish protection around the construction site. This increases the probability of accidents. In this invention, the protective plate 1 is transported to the construction site of the highway bridge requiring protection. The spiral positioning rod 4 is then aligned with the soil surface, and the power mechanism 3 is switched on. The output of the power mechanism 3 drives the spiral positioning rod 4 to rotate. As the spiral positioning rod 4 rotates on the soil surface, it continuously spirals into the soil. Once the spiral positioning rod 4 is fully embedded in the soil, the power mechanism 3 is switched off. The system allows for rapid fixing of the protective plate 1, enabling quick deployment around highway bridge construction sites and reducing the risk of accidents. When the protective range of the protective plate 1 needs to be extended, the connecting holes 6 on the surface of another protective plate 1 are inserted into the connecting rods 5 on the already fixed protective plate 1 surface, thus connecting multiple plates (the angle between the connecting rods 5 and the connecting holes 6 can be adjusted by rotation), thereby extending the protective range of the protective plate 1. This facilitates the deployment of the protective plate 1 around construction pits of different specifications for highway bridges. When the protective plate 1 needs to be dismantled, the power mechanism 3 is restarted, causing the spiral positioning rod 4 to reverse, and then an upward force is applied to the protective plate 1, thus completing the removal of the protective plate 1.

[0041] The protective plate 1 has an installation groove 7 on its surface. A rotating shaft 8 is fixedly installed on the inner wall of the installation groove 7. A rotating support plate 9 is rotatably installed on the surface of the rotating shaft 8 (the rotation angle of the rotating support plate 9 is adjustable and can be fixed in the rotated position after adjustment). In order to increase the stability of the protective plate 1 after installation, the rotating support plate 9 in the installation groove 7 is rotated so that the support plate forms an angle with the ground. When wild animals collide with the protective plate 1 at night, the combination of the support plate and the ground can provide a strong support for the protective plate 1, preventing the protective plate 1 from collapsing after being violently impacted.

[0042] The rotating support plate 9 has an extension support plate 10 slidably mounted on its surface. A set of positioning holes 12 are formed on the surface of the rotating support plate 9. A positioning insert 13 is slidably mounted in the extension support plate 10. Both ends of the positioning insert 13 are adapted to the positioning holes 12. A spring 14 is fixedly mounted on the surface of the positioning insert 13, and the other end of the spring 14 is fixedly connected to the surface of the extension support plate 10. When the terrain on one side of the protective plate 1 is too low or too high, the positioning insert 13 is pulled. As the positioning insert 13 moves, it stretches the spring 14 and moves it away from the positioning hole 12, releasing the fixation on the extension support plate 10. Then, the extension support plate 10 is slid to a suitable position, and the positioning insert 13 is released. The spring 14 then drives the positioning insert 13 to reset and re-insert into the adjusted positioning hole 12, fixing the extension support plate 10 in place. This adjusts the length of the rotating support plate 9 that can support the protective plate 1, providing good support in various terrains and improving the stability of the protective plate 1 during use.

[0043] The inner surface of the spiral positioning rod 4 is fixedly fitted with a second spring 15, and the other end of the second spring 15 is fixedly fitted with a top rod 16. The inner surface of the spiral positioning rod 4 is threaded with a plug 17, and the surface of the plug 17 is fixedly fitted with a protrusion 18. When the spiral positioning rod 4 is normally screwed into the soil, the resistance of the protrusion 18 and the soil cooperates to allow the plug 17 to be screwed into the spiral positioning rod 4 more effectively. When the spiral positioning rod 4 is reversed for removal, the resistance of the protrusion 18 and the soil cooperates (the soil is squeezed towards the spiral positioning rod 4 and the protrusion 18 under the action of gravity), causing the plug 17 to fall out of the spiral positioning rod 4. Then, the second spring 15 drives the top rod to pop out and abut against the soil, applying an upward reaction force to the spiral positioning rod 4, assisting the removal personnel in removing the protective plate 1, thereby improving the removal efficiency of the protective plate 1.

[0044] The protective plate 1 has a water pipe (connected to a tap water source) inside, and a pair of spray pipes 19 connected to the water pipe are installed on the surface of the protective plate 1. Each spray pipe 19 has an atomizing component inside, and a rotating rod 20 is rotatably mounted on the inner wall of the spray pipe 19. A spiral plate 21 is fixedly mounted on the surface of the rotating rod 20, and a set of diffuser plates 22 are fixedly mounted on the surface of the rotating rod 20. The diffuser plates 22 are arranged in a wavy shape. When the valve of the water pipe is opened, the water in the pipe is atomized by the atomizing component and sprayed out along the spray pipes 19 to suppress dust in the air at the construction site of the highway bridge foundation pit. When the atomized mist passes through the spiral plate 21 in the spray pipe 19, it works in conjunction with the spiral plate 21 to drive the rotating rod 20 to rotate. The rotation of the rotating rod 20 drives the diffuser plates 22 to rotate, thereby diffusing the mist, increasing the spraying range, and achieving a better dust suppression effect.

[0045] The protective plate 1 is connected to a collection component 23 via an automatic lifting mechanism. A connecting pipe 27 is installed within the protective plate 1, and a one-way valve is installed inside the connecting pipe 27. One end of the connecting pipe 27 within the protective plate 1 is fixedly connected to a water pipe, while the other end of the connecting pipe 27, away from the water pipe, is located within the collection component 23. A water inlet 28 is provided at the other end of the connecting pipe 27. An electric telescopic rod 24 is fixedly installed on the surface of the collection component 23, and a connecting component 25 is fixedly installed at the output end of the electric telescopic rod 24. A pressing plate 26 is fixedly installed at the other end of the connecting component 25, and the pressing plate 26 slides tightly against the collection component 23. The sealing connection is provided with a water inlet mechanism on the surface of the extrusion plate 26. When there is rain, the rainwater falls on the surface of the extrusion plate 26 and enters the collection member 23 through the water inlet mechanism. After the collection member 23 collects the rainwater, the automatic lifting mechanism connects the collection member 23 to the connecting pipe 27. After the weather clears up, the electric telescopic rod 24 is activated, which causes the output end of the electric telescopic rod 24 to retract and drive the connecting member 25 to move. The connecting member 25 drives the extrusion plate 26 to squeeze the space inside the collection member 23, so that the rainwater collected in the collection member 23 enters the water pipe along the connecting pipe 27 and is finally atomized by the atomizing component, thereby realizing the recycling of rainwater and saving domestic water.

[0046] The automatic lifting mechanism includes a protruding plate 29 fixedly connected to the surface of the protective plate 1. A spring 30 is fixedly installed on the surface of the protruding plate 29. The other end of the spring 30 is fixedly connected to the lower surface of the collecting component 23. The collecting component 23 is slidably sealed to the surface of the connecting pipe 27. When a certain amount of water accumulates in the collecting component 23, the weight of the collecting component 23 and the rainwater presses the spring 30, and then the collecting component 23 slides on the surface of the connecting pipe 27. The water inlet 28 of the connecting pipe 27 is then exposed inside the collecting component 23 and communicates with the inside of the collecting component 23. This avoids the need for subsequent atomization and prioritizes the use of the rainwater in the collecting component 23, thus achieving the effect of saving water.

[0047] The water inlet mechanism includes a set of water inlet holes 35 formed on the surface of the extrusion plate 26. Multiple pairs of elastic strips 31 are fixedly installed on the surface of the extrusion plate 26. A connecting rod 32 is fixedly installed on the surface of a pair of elastic strips 31. A buoyancy sealing plate 33 is fixedly installed on the lower surface of the connecting rod 32. After rainwater falls on the surface of the extrusion plate 26, it enters the collection component 23 through the water inlet holes 35. When the electric telescopic rod 24 drives the extrusion plate 26 to squeeze the space inside the collection component 23, the buoyancy sealing plate 33 comes into contact with the rainwater inside the collection component 23. As the extrusion plate 26 moves continuously, the buoyancy sealing plate 33 abuts against the lower surface of the extrusion plate 26, blocking the water inlet holes 35, so that the collection component 23 is in a sealed state. This allows rainwater to enter the collection component 23 normally through the extrusion plate 26 without affecting the sealing and squeezing effect of the extrusion plate 26.

[0048] Example 2: Figure 8 As shown in the comparative embodiment one, another embodiment of the present invention is as follows: a support rod 11 is provided at the free end of the extended support plate 10, and a set of equally spaced grooves 34 are provided on the surface of the support rod 11. The grooves 34 are arranged in an inverted V shape. The V-shaped grooves 34 can increase the friction when the support rod 11 contacts the ground, thereby improving the stability effect when supporting the protective plate 1.

[0049] like Figure 9 As shown, a method for foundation pit support in highway bridge construction is described. This method employs the aforementioned foundation pit protection mechanism for highway bridge construction and includes the following steps:

[0050] S1: Before the construction of highway bridges, the geological conditions of the foundation pit are investigated and explored to determine the geological conditions in the construction area. Based on the geological conditions in different construction areas, the construction site is compacted.

[0051] S2: When constructing a highway bridge, install a foundation pit protection mechanism for the highway bridge construction, specifically including the following steps:

[0052] S21: When installing the protective plate 1, transport the protective plate 1 to the construction site of the highway bridge that needs protection, point the spiral positioning rod 4 toward the soil surface and turn on the switch of the power mechanism 3, so that the output end of the power mechanism 3 drives the spiral positioning rod 4 to rotate into the soil. When the spiral positioning rod 4 is completely inserted into the soil, turn off the switch of the power mechanism 3 to complete the quick fixing of the protective plate 1.

[0053] S22: In order to increase the stability of the protective plate 1 after installation, rotate the rotating support plate 9 in the mounting groove 7 so that the rotating support plate 9 forms an angle with the ground. At this time, the rotating support plate 9 combined with the ground can provide support for the protective plate 1 and reduce the collapse of the protective plate 1 after being violently impacted.

[0054] S23: When the terrain on one side of the protective plate 1 is too low or too high, pull the positioning insert 13. When the positioning insert 13 moves, it stretches the spring 14 and moves away from the positioning hole 12, releasing the fixation on the extension support plate 10. Then slide the extension support plate 10 to the appropriate position and release the positioning insert 13. The positioning insert 13 resets and re-inserts into the adjusted positioning hole 12 to fix the extension support plate 10. Adjust the length of the rotating support plate 9 to provide good support in various terrains and improve the stability of the protective plate 1 during use.

[0055] S3: When construction is completed and the protective plate 1 needs to be dismantled, the power mechanism 3 is restarted to reverse the spiral positioning rod 4 and apply an upward force to the protective plate 1, thereby completing the rapid dismantling of the protective plate 1.

[0056] Currently, when constructing highway bridges, protective mechanisms need to be installed on the perimeter. However, traditional methods for installing these mechanisms are diverse and complex, leading to low installation efficiency and an inability to quickly establish protection around the construction site, thus increasing the probability of accidents. This invention protects the foundation pit of highway bridge construction using the aforementioned method, enabling rapid deployment around the construction site and reducing the likelihood of accidents. When it is necessary to dismantle the protective plate 1, the power mechanism 3 is restarted, causing the spiral positioning rod 4 to reverse and apply an upward force to the protective plate 1, thereby completing the removal of the protective plate 1 and improving the dismantling efficiency of the protective mechanism.

[0057] Working Principle: During installation, the protective plate 1 is transported to the construction site of the highway bridge requiring protection. The spiral positioning rod 4 is aligned with the soil surface, and the power mechanism 3 is switched on. The output of the power mechanism 3 drives the spiral positioning rod 4 to rotate. As the spiral positioning rod 4 rotates on the soil surface, it continuously spirals into the soil. Once the spiral positioning rod 4 is fully embedded in the soil, the power mechanism 3 is switched off, completing the rapid fixing of the protective plate 1. This allows for quick deployment around the highway bridge construction site, reducing the likelihood of accidents. When the protection range of the protective plate 1 needs to be extended, the connecting holes 6 on the surface of another protective plate 1 are inserted into the connecting rods 5 on the already fixed protective plate 1 surface, thus connecting multiple plates (the angle between the connecting rods 5 and the connecting holes 6 can be adjusted by rotation), thereby extending the protection range of the protective plate 1. This facilitates the deployment of the protective plate 1 around the construction pits of highway bridges of different specifications. When the protective plate 1 needs to be disassembled, the power mechanism 3 is restarted, causing the spiral positioning rod 4 to reverse. An upward force is applied to the protective plate 1 to complete its removal. To increase the stability of the protective plate 1 after installation, the rotating support plate 9 in the mounting slot 7 is rotated so that the support plate forms an angle with the ground. When wild animals collide with the protective plate 1 at night, the support plate combined with the ground can provide strong support for the protective plate 1, preventing it from collapsing after a violent impact. When the terrain on the side that the protective plate 1 needs to support is too low or too high, the positioning insert 13 is pulled. When the positioning insert 13 moves, it stretches the spring 14 and moves away from the positioning hole 12, releasing the fixation on the extension support plate 10. Then, the extension support plate 10 is slid. After the extension support plate 10 is slid to the appropriate position, the positioning insert 13 is released. The spring 14 then drives the positioning insert 13 to reset and re-insert it into the adjusted positioning hole 12, fixing the extension support plate 10. This adjusts the length of the rotating support plate 9 that can support the protective plate 1, providing good support in various terrains and improving the stability of the protective plate 1 during use.

[0058] When the spiral positioning rod 4 is normally screwed into the soil, the resistance between the protrusion 18 and the soil helps the plug 17 to be screwed into the spiral positioning rod 4 more effectively. When the spiral positioning rod 4 is reversed for removal, the resistance between the protrusion 18 and the soil (the soil is squeezed towards the spiral positioning rod 4 and the protrusion 18 under the action of gravity) causes the plug 17 to fall out of the spiral positioning rod 4. Then, the spring 15 drives the abutment rod to pop out and abut against the soil, applying an upward reaction force to the spiral positioning rod 4, assisting the removal personnel in removing the protective plate 1, thus improving the removal efficiency of the protective plate 1. When the valve of the water pipe is opened, the water in the water pipe is atomized by the atomizing component and sprayed out along the spray pipe 19 to suppress dust in the air at the construction site of the highway bridge foundation pit. When the atomized mist passes through the spiral plate 21 in the spray pipe 19, it works with the spiral plate 21 to drive the rotating rod 20 to rotate. When the rotating rod 20 rotates, it drives the diffuser plate 22 to rotate, thereby spreading the mist out, increasing the spray range, and thus achieving better dust suppression. Effect: When it rains, the rainwater falls on the surface of the squeezing plate 26 and enters the collection member 23 through the water inlet mechanism. After the collection member 23 collects rainwater, the automatic lifting mechanism connects the collection member 23 to the connecting pipe 27. After the weather clears up, the electric telescopic rod 24 is activated, causing the output end of the electric telescopic rod 24 to retract and drive the connecting member 25 to move. The connecting member 25 drives the squeezing plate 26 to squeeze the space inside the collection member 23, so that the rainwater collected in the collection member 23 enters the water pipe along the connecting pipe 27 and is finally atomized by the atomizing component, thereby realizing the recycling of rainwater and saving domestic water. When a certain amount of water accumulates in the collection member 23, the weight of the collection member 23 and the rainwater, together with the squeezing spring 30, causes the collection member 23 to slide on the surface of the connecting pipe 27. The water inlet 28 of the connecting pipe 27 is then exposed inside the collection member 23 and connected to the inside of the collection member 23. This avoids the need for subsequent atomization and prioritizes the use of the rainwater in the collection member 23, achieving the effect of saving water.

[0059] After rainwater falls on the surface of the extrusion plate 26, it enters the collection component 23 through the water inlet 35. When the electric telescopic rod 24 drives the extrusion plate 26 to squeeze the space inside the collection component 23, the buoyancy sealing plate 33 comes into contact with the rainwater inside the collection component 23. As the extrusion plate 26 moves continuously, the buoyancy sealing plate 33 abuts against the lower surface of the extrusion plate 26, blocking the water inlet 35, so that the collection component 23 is in a sealed state. This allows rainwater to enter the collection component 23 normally through the extrusion plate 26 without affecting the sealing and extrusion effect of the extrusion plate 26. The V-shaped groove 34 can increase the friction when the support rod 11 contacts the ground, thereby improving the stability when supporting the protective plate 1.

[0060] The terms "front," "back," "left," "right," "top," and "bottom" all refer to the figures in the accompanying drawings. Figure 1Based on the perspective of the observer, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0061] In the description of this invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this invention.

[0062] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A foundation pit protection mechanism for highway bridge construction, characterized in that: The device includes a protective plate (1), on the surface of which a connecting hole (6) is provided. A connecting rod (5) is fixedly installed on the surface of the protective plate (1). The connecting rod (5) is adapted to the connecting hole (6). An installation cavity (2) is provided inside the protective plate (1). A power mechanism (3) is provided inside the installation cavity (2). A spiral positioning rod (4) is connected to the output end of the power mechanism (3). The protective plate (1) has a water pipe inside, and a pair of nozzles (19) connected to the water pipe are provided on the surface of the protective plate (1). The nozzles (19) have an atomizing component inside, and a rotating rod (20) is rotatably installed on the inner wall of the nozzles (19). A spiral plate (21) is fixedly installed on the surface of the rotating rod (20), and a set of diffuser plates (22) is fixedly installed on the surface of the rotating rod (20). The diffuser plates (22) are arranged in a wave shape. The surface of the protective plate (1) is connected to a collection component (23) via an automatic lifting mechanism. A connecting pipe (27) is provided in the protective plate (1). A one-way valve is provided inside the connecting pipe (27). One end of the connecting pipe (27) located in the protective plate (1) is fixedly connected to a water pipe. The end of the connecting pipe (27) away from the water pipe is located inside the collection component (23). A water inlet (28) is opened at the end of the connecting pipe (27) away from the water pipe. An electric telescopic rod (24) is fixedly installed on the surface of the collection component (23). A connecting component (25) is fixedly installed at the output end of the electric telescopic rod (24). A pressing plate (26) is fixedly installed at the other end of the connecting component (25). The pressing plate (26) is slidably and sealingly connected to the collection component (23). A water inlet mechanism is provided on the surface of the pressing plate (26). The automatic lifting mechanism includes a protruding plate (29) fixedly connected to the surface of the protective plate (1), a spring three (30) fixedly installed on the surface of the protruding plate (29), the other end of the spring three (30) fixedly connected to the lower surface of the collecting component (23), and the collecting component (23) slidingly sealingly connected to the surface of the connecting pipe (27). The water inlet mechanism includes a set of water inlet holes (35) opened on the surface of the extrusion plate (26). Multiple pairs of spring strips (31) are fixedly installed on the surface of the extrusion plate (26). A connecting rod (32) is fixedly installed on the surface of a pair of spring strips (31). A buoyancy sealing plate (33) is fixedly installed on the lower surface of the connecting rod (32).

2. The foundation pit protection mechanism for highway bridge construction according to claim 1, characterized in that: The protective plate (1) has an installation groove (7) on its surface. A rotating shaft (8) is fixedly installed on the inner wall of the installation groove (7). A rotating support plate (9) is rotatably installed on the surface of the rotating shaft (8).

3. The foundation pit protection mechanism for highway bridge construction according to claim 2, characterized in that: An extension support plate (10) is slidably mounted on the surface of the rotating support plate (9). A set of positioning holes (12) are opened on the surface of the rotating support plate (9). A positioning insert plate (13) is slidably mounted in the extension support plate (10). Both ends of the positioning insert plate (13) are adapted to the positioning holes (12). A spring (14) is fixedly mounted on the surface of the positioning insert plate (13). The other end of the spring (14) is fixedly connected to the surface of the extension support plate (10).

4. The foundation pit protection mechanism for highway bridge construction according to claim 3, characterized in that: A second spring (15) is fixedly installed on the inner surface of the spiral positioning rod (4), and a top rod (16) is fixedly installed on the other end of the second spring (15). A plug (17) is threadedly connected to the inner surface of the spiral positioning rod (4), and a protrusion (18) is fixedly installed on the surface of the plug (17).

5. A foundation pit protection mechanism for highway bridge construction according to claim 1, characterized in that: The free end of the extended support plate (10) is provided with a support rod (11), and a set of equally spaced grooves (34) are provided on the surface of the support rod (11), and the grooves (34) are arranged in an inverted V shape.

6. A method for foundation pit support in highway bridge construction, wherein the method employs the foundation pit protection mechanism for highway bridge construction as described in any one of claims 1 to 5, characterized in that: The method includes the following steps: S1: Before the construction of highway bridges, the geological conditions of the foundation pit are investigated and explored to determine the geological conditions in the construction area. Based on the geological conditions in different construction areas, the construction site is compacted. S2: When constructing a highway bridge, install a foundation pit protection mechanism for the highway bridge construction, specifically including the following steps: S21: When installing the protective plate (1), transport the protective plate (1) to the construction site of the highway bridge that needs protection, point the spiral positioning rod (4) toward the soil surface and turn on the power mechanism (3) so that the output end of the power mechanism (3) drives the spiral positioning rod (4) to rotate into the soil. When the spiral positioning rod (4) is completely inserted into the soil, turn off the power mechanism (3) to complete the quick fixing of the protective plate (1). S22: In order to increase the stability of the protective plate (1) after installation, rotate the rotating support plate (9) in the mounting groove (7) so that the rotating support plate (9) forms an angle with the ground. At this time, the rotating support plate (9) combined with the ground can provide support for the protective plate (1) and reduce the collapse of the protective plate (1) after being violently impacted. S23: When the terrain on one side of the protective plate (1) is too low or too high, pull the positioning plate (13). When the positioning plate (13) moves, it stretches the spring (14) and leaves the positioning hole (12). Release the fixation of the extension support plate (10), and then slide the extension support plate (10). After sliding the extension support plate (10) to the appropriate position, release the positioning plate (13). The positioning plate (13) resets and re-inserts into the adjusted positioning hole (12). Fix the extension support plate (10) and adjust the length of the rotating support plate (9). It can provide good support in various terrains and improve the stability of the protective plate (1) when in use. S3: When construction is completed and the protective plate (1) needs to be dismantled, the power mechanism (3) is restarted to reverse the spiral positioning rod (4) and apply an upward force to the protective plate (1) to complete the rapid dismantling of the protective plate (1).

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