A bridge protection device

Abstract

This invention relates to the field of bridge and tunnel protection technology, specifically a bridge and tunnel protection device. The device includes a lifting platform that, when raised, simultaneously raises a protective frame. A swinging component, via a transmission component, causes the protective frame to swing from a closed position to a predetermined open position. Once the protective frame reaches the open position, the transmission component connects to a blocking component, stopping the swinging motion. The lifting platform continues to raise the stationary protective frame and blocking component simultaneously. When the lifting platform descends, it also lowers the stationary protective frame and blocking component simultaneously. Upon reaching the swinging component, the transmission component disengages from the blocking component and connects to the swinging component. The swinging component, via the transmission component, causes the protective frame to swing from the predetermined open position to a closed position, stopping the descent of the lifting platform. This invention offers advantages such as flexible adjustment of the protection height, automatic opening and closing of the protective net, no manual operation required, and suitability for various construction scenarios.

Description

Technical Field

[0001] This invention relates to the field of bridge and tunnel protection technology, specifically to a bridge and tunnel protection device. Background Technology

[0002] During bridge and tunnel construction, safety protection devices must be installed at the construction site to isolate the construction area, block falling objects, buffer impacts from vehicles or equipment, and ensure the safety of pedestrians, vehicles, and construction workers. Existing protective devices are mostly fixed in height and cannot be flexibly adjusted according to the height requirements of different construction scenarios such as bridges, tunnels, and slopes. Their interception range against falling objects is limited, creating blind spots and limiting their safety effectiveness. Furthermore, protective nets are mostly fixed installations, requiring manual operation for deployment and retraction, which is cumbersome and inefficient. Summary of the Invention

[0003] In view of this, the present invention provides a bridge and tunnel protection device, which aims to solve the problems in the prior art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a bridge and tunnel protection device, comprising, A fixed compartment, which contains a lifting compartment, the top of which extends through the top of the fixed compartment, and the lifting compartment moves up and down under the drive of a lifting assembly; A protective frame is installed on the first side of the top of the elevator compartment, and a protective net is fixed inside the protective frame. As the lifting platform rises, it drives the protective frame to rise synchronously. Simultaneously, the swing assembly, through the transmission assembly, causes the protective frame to swing from a closed position to a predetermined open position. After the protective frame swings to the open position, the transmission assembly connects with the blocking assembly, and the protective frame stops swinging. The lifting platform then continues to drive the stationary protective frame and the blocking assembly to rise synchronously. When the lifting platform descends, it drives the stationary protective frame and the blocking component to descend synchronously. When it descends to the swing component, the transmission component disengages from the blocking component and connects with the swing component. The swing component, through the transmission component, causes the protective frame to swing from the set open position to the closed position, and the descent of the lifting platform stops.

[0005] A further improvement of the present invention is that the transmission assembly includes: The first rotating shaft is horizontally fixed on the first side of the protective frame near the lifting chamber, and the two ends of the first rotating shaft are connected to the two rotating shafts on the first side of the lifting chamber. The second rotating shaft is parallel to the first rotating shaft and is mounted inside the lifting chamber. The first gear fixed on the second rotating shaft passes through the first through slot on the first side of the lifting chamber and meshes with the second gear fixed on the first rotating shaft. The third rotating shaft is mounted parallel to the second rotating shaft in the lifting chamber, and the third rotating shaft is alternately connected to the swing assembly and the blocking assembly. The fourth rotating shaft is vertically mounted in the lifting chamber between the second and third rotating shafts, and the two first bevel gears fixed at both ends of the shaft mesh with the two second bevel gears on the second and third rotating shafts, respectively.

[0006] A further improvement of the present invention is that the oscillating component includes: The first rack is vertically installed inside the lifting chamber, and the first rack meshes with the third gear on the third rotating shaft; The first fixed plate is fixed inside the fixed chamber. One end of the plate passes through the second long slot of the lifting chamber and is fixedly connected to the first rack. The length of the second long slot is greater than the length of the first rack.

[0007] A further improvement of the present invention is that the blocking component includes: The second rack is vertically installed in the lifting chamber above the first rack, with its lower end abutting against the upper end of the first rack. An arc-shaped rack, the first end of which is fixedly connected to the upper end of the second rack; The second fixing plate has its first end passing through the second elongated slot and then fixedly connected to the second rack. The second end of the second fixing plate is connected to the fixing chamber through the first elastic component.

[0008] A further improvement of the present invention is that the first elastic component includes: The first guide cylinder is vertically fixed at the upper end of the fixed chamber; A first guide shaft is coaxially slidably disposed inside the first guide cylinder. The upper end of the first guide shaft passes through the upper end of the first guide cylinder and is fixedly connected to the second end of the second fixing plate. A first spring is provided inside the first guide cylinder between the lower end of the first guide shaft and the lower end of the interior of the first guide cylinder.

[0009] A further improvement of the present invention is that the lifting assembly includes: The first screw is vertically fixed at the lower end of the lifting chamber; The first rotating sleeve is rotated inside the fixed chamber and coaxially sleeved on the first screw, and the first screw is threadedly connected to the inner wall of the first rotating sleeve; The third bevel gear is located in the fixed chamber and rotates under the drive of the first driving member. The third bevel gear meshes with the fourth bevel gear fixed on the first rotating sleeve.

[0010] A further improvement of the present invention is that a stabilizing component is provided at the bottom of the fixing chamber, the stabilizing component comprising: The fifth bevel gear is located inside the fixed chamber and rotates under the drive of the second driving member; The fifth rotating shaft is horizontally mounted in the fixed compartment below the lifting assembly, and the sixth bevel gear on the fifth rotating shaft meshes with the fifth bevel gear; Two symmetrical ground-mounted components are located at the bottom of the fixed compartment and are connected to the fifth rotating shaft respectively. When the fifth rotating shaft rotates, the two ground-mounted components are inserted into or removed from the ground.

[0011] A further improvement of the present invention is that the ground-mounted socket assembly includes: A fixing plate is fixedly installed in the through hole at the bottom of the fixing chamber; Multiple insertion rods are evenly distributed along the circumference of the fixed disk on its circumferential surface, and the threaded sections on the insertion rods are connected to the through-threaded holes on the fixed disk. The sixth rotating shaft is vertically mounted in the middle of the fixed plate. The upper end of the shaft is fixed with a seventh bevel gear that meshes with the eighth bevel gear on the fifth rotating shaft. The fourth gear fixed on the shaft meshes with the fifth gear at the top of the insert rod. During the process of the insert rod driving the fifth gear to rise and fall, the fourth gear and the fifth gear are always meshed.

[0012] A further improvement of the present invention is that a collision avoidance component is provided on the second side of the fixed compartment, the collision avoidance component comprising: A first anti-collision plate is slidably mounted on the second side of the fixed compartment, and the first anti-collision plate is connected to the second side of the fixed compartment through a second elastic component; The second anti-collision plate is slidably installed inside the first anti-collision plate. The upper end of the second anti-collision plate extends beyond the upper end of the first anti-collision plate. One side of the upper end of the second anti-collision plate is connected to the second side of the lifting chamber through a third elastic component.

[0013] A further improvement of the present invention is that the second elastic component has the same structure as the third elastic component, and the second elastic component includes: The second guide cylinder has its first end horizontally fixed on the second side of the fixed chamber; The second guide shaft has its first end fixed to the first anti-collision plate and coaxial with the second guide cylinder. The second end of the second guide shaft is nested inside the second guide cylinder. A second spring is provided inside the second guide cylinder between the second end of the second guide shaft and the first end of the second guide cylinder.

[0014] The technological advancements achieved by this invention due to the adoption of the above technical solutions are as follows: This invention provides a bridge and tunnel protection device. When the lifting chamber rises, it can drive the protective frame to rise synchronously. Through the swing component and the transmission component, the protective frame can automatically swing from the closed state to the set opening angle, realizing the integrated action of raising the protection height and simultaneously unfolding the protective net. No manual assistance is required. Compared with the existing technology, it is suitable for different bridge, tunnel, slope and elevated construction scenarios, with a wide protection range and no blind spots.

[0015] In this invention, after the protective frame swings to the set opening position, the transmission component and the blocking component automatically engage to achieve positioning, keeping the protective frame in a stationary opening state. The lifting cabin can continue to drive the entire protective frame to rise, expanding the high-altitude protection range. When descending and resetting, it automatically unlocks and retracts. There is no jamming, loosening, or shaking throughout the entire process, and the structural stability and operational reliability are significantly improved.

[0016] In this invention, the insertion rod automatically extends into the ground or retracts and detaches through the stabilizing component and the ground insertion component. It is firmly fixed, wind-resistant and impact-resistant, quick to assemble and disassemble, and can be reused repeatedly, reducing construction costs.

[0017] In this invention, the second anti-collision plate of the anti-collision component is connected to the lifting chamber and can move up and down with the lifting chamber. When the lifting chamber rises, the anti-collision height is increased synchronously, thereby extending the upper anti-collision range, enhancing the ability to resist impacts from high places, and making the overall anti-collision effect more comprehensive.

[0018] In this invention, when not in use, the protective frame can automatically retract to a closed state, the lifting chamber is lowered to its lowest position, the overall size is small and occupies little space, making it convenient for on-site transportation, stacking and storage and repeated use at multiple construction sites. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of the protective device described in this invention; Figure 2 This is a schematic diagram of the first through-slot structure of the protective device described in this invention; Figure 3 This is a schematic diagram of the transmission assembly of the protective device described in this invention; Figure 4 This is a schematic diagram of the swing assembly of the protective device described in this invention; Figure 5 This is a schematic diagram of the first elastic group of the protective device described in this invention; Figure 6 This is a schematic diagram of the lifting assembly of the protective device described in this invention; Figure 7 This is a schematic diagram of the stabilizing component of the protective device described in this invention; Figure 8 This is a schematic diagram of the second elastic component of the protective device described in this invention.

[0021] Explanation of reference numerals in the attached figures: 10-Fixed chamber, 101-Second long slot, 11-Lifting chamber, 111-First through slot, 12-Protective frame, 13-Protective net, 21-First rotating shaft, 22-Second rotating shaft, 23-First gear, 24-Second gear, 25-Third rotating shaft, 26-Third gear, 27-Fourth rotating shaft, 28-First bevel gear, 29-Second bevel gear, 30-Swing assembly, 31-First rack, 32-First fixed plate, 40-Blocking assembly, 41-Second rack, 42-Arc rack, 43-Second fixed plate, 50-First elastic assembly, 51-First guide cylinder, 52-First guide shaft, 53-First spring, 60 - Lifting assembly, 61- First screw, 62- First rotating sleeve, 63- Third bevel gear, 64- Fourth bevel gear, 65- First driving component, 70- Stabilizing assembly, 71- Fifth bevel gear, 72- Fifth rotating shaft, 73- Sixth bevel gear, 74- Seventh bevel gear, 75- Eighth bevel gear, 76- Second driving component, 80- Ground insertion assembly, 81- Fixed plate, 82- Insert rod, 83- Sixth rotating shaft, 84- Fourth gear, 85- Fifth gear, 91- First anti-collision plate, 92- Second anti-collision plate, 93- Third elastic component, 94- Second elastic component, 95- Second guide cylinder, 96- Second guide shaft, 97- Second spring. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, in the following description, specific details such as particular system structures and technologies are set forth for illustrative purposes rather than for limiting purposes, in order to provide a thorough understanding of the embodiments of the present invention. However, those skilled in the art should understand that the present invention can also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary details.

[0023] This invention provides a bridge and tunnel protection device, as per the appendix to the specification. Figures 1 to 8 It can be seen that a bridge and tunnel protection device mainly includes the following parts or components: fixed compartment 10, lifting compartment 11, protective frame 12, and protective net 13.

[0024] In this invention, a lifting chamber 11 is provided inside the fixed chamber 10. The top of the lifting chamber 11 extends through the top of the fixed chamber 10. The lifting chamber 11 is lifted and lowered under the drive of the lifting assembly 60. A protective frame 12 is provided on the first side of the top of the lifting chamber 11, and a protective net 13 is fixed inside the protective frame 12. When the lifting chamber 11 rises, it drives the protective frame 12 to rise synchronously. At the same time, the swing assembly 30 causes the protective frame 12 to swing from closed to a set open position through the transmission assembly. After the protective frame 12 swings to the open position, the transmission assembly connects with the blocking assembly 40, and the protective frame 12 stops swinging. The lifting chamber 11 continues to drive the stationary protective frame 12 and the blocking assembly 40 to rise synchronously. When the lifting chamber 11 descends, it drives the stationary protective frame 12 and the blocking assembly 40 to descend synchronously. When it descends to the swing assembly 30, the transmission assembly disengages from the blocking assembly 40 and connects with the swing assembly 30. The swing assembly 30 causes the protective frame 12 to swing from the set open position to closed through the transmission assembly, and the descent of the lifting chamber 11 stops.

[0025] Initially, the protective frame 12 is closed and the lifting chamber 11 is at its lowest position. When protective work is required, the lifting assembly 60 is activated and drives the lifting chamber 11 to move upward. The top of the lifting chamber 11 drives the protective frame 12 to rise synchronously. In the initial stage of the rise, the swing assembly 30 is triggered, transmitting power to the protective frame 12 through the transmission assembly, causing the protective frame 12 to slowly swing outward from the closed state until it reaches the preset opening position. When the protective frame 12 reaches the set opening position, the transmission assembly and the blocking assembly 40 automatically engage. The blocking assembly 40 limits the transmission assembly, causing the protective frame 12 to stop swinging and remain in a stationary open state. Afterward, the lifting chamber 11 continues to move upward, driving the now stationary open protective frame 12 and the blocking assembly 40 to rise synchronously as a whole, further increasing the protective height and protection range.

[0026] When construction is completed and storage is required, the lifting assembly 60 drives the lifting chamber 11 to move downwards. The lifting chamber 11 first lowers the protective frame 12, which remains stationary and open, in sync with the blocking assembly 40. When it reaches the position of the swing assembly 30, the transmission assembly automatically disengages from the blocking assembly 40 and re-establishes a transmission connection with the swing assembly 30. The swing assembly 30, through the transmission assembly, drives the protective frame 12 to swing in the opposite direction, gradually returning it from the open state to the closed state. After the protective frame 12 is fully closed, the lifting chamber 11 descends to its lowest position and stops, completing the entire storage process. This system enables integrated action of raising the protective height and simultaneously deploying the protective net 13, without manual assistance. It is suitable for various bridge, tunnel, slope, and elevated construction scenarios, providing a wide protection range with no blind spots.

[0027] As one embodiment, according to the appendix to the specification Figure 2 To be continued Figure 4It is known that the transmission assembly includes a first rotating shaft 21, which is horizontally fixed on the first side of the protective frame 12 near the lifting chamber 11, and the two ends of the first rotating shaft 21 are connected to the two rotating shafts at the two ends of the first side of the lifting chamber 11; a second rotating shaft 22 is parallel to the first rotating shaft 21 and is rotated inside the lifting chamber 11, and a first gear 23 fixed on the second rotating shaft 22 passes through the first through groove 111 on the first side of the lifting chamber 11 and meshes with a second gear 24 fixed on the first rotating shaft 21; a third rotating shaft 25 is rotated parallel to the second rotating shaft 22 inside the lifting chamber 11, and the third rotating shaft 25 is alternately connected to the swing assembly 30 and the blocking assembly 40 respectively; a fourth rotating shaft 27 is rotated vertically inside the lifting chamber 11 between the second rotating shaft 22 and the third rotating shaft 25, and two first bevel gears 28 fixed at both ends of the fourth rotating shaft 27 mesh with two second bevel gears 29 on the second rotating shaft 22 and the third rotating shaft 25 respectively.

[0028] The transmission assembly transmits the power from the swing assembly 30 or the blocking assembly 40 to the protective frame 12, enabling swinging and locking. The swing assembly 30 drives the third rotating shaft 25 to rotate. The second bevel gear 29 on the third rotating shaft 25 drives the first bevel gear 28 at one end of the fourth rotating shaft 27 to rotate, causing the fourth rotating shaft 27 to rotate synchronously. The first bevel gear 28 at the other end of the fourth rotating shaft 27 drives the second bevel gear 29 on the second rotating shaft 22 to rotate, causing the second rotating shaft 22 to rotate. The first gear 23 on the second rotating shaft 22 passes through the first through slot 111 and meshes with the second gear 24 on the first rotating shaft 21, driving the first rotating shaft 21 to rotate. The first rotating shaft 21 causes the protective frame 12 to swing around its axis, achieving opening and closing actions. The blocking assembly 40 restricts the rotation of the third rotating shaft 25, thereby simultaneously restricting the fourth rotating shaft 27, the second rotating shaft 22, and the first rotating shaft 21, thus locking the protective frame 12. As one embodiment, according to the appendix to the specification Figure 4 It is known that the swing assembly 30 includes a first rack 31, which is vertically disposed in the lifting chamber 11. The first rack 31 meshes with the third gear 26 on the third rotating shaft 25. The first fixing plate 32 is fixedly disposed in the fixing chamber 10. One end of the plate passes through the second long slot 101 of the lifting chamber 11 and is fixedly connected to the first rack 31. The length of the second long slot 101 is greater than the length of the first rack 31.

[0029] The first fixed plate 32 is fixedly installed on the inner wall of the fixed chamber 10 and remains in a fixed position. When the lifting chamber 11 moves upward, the first fixed plate 32 and the first rack 31 move downward relative to the lifting chamber 11. The first rack 31 continuously meshes with the third gear 26 on the third rotating shaft 25, forcing the third gear 26 to rotate, which in turn drives the third rotating shaft 25 to rotate. The third rotating shaft 25 inputs power into the transmission component, ultimately driving the protective frame 12 to swing outward. The second long slot 101 provides lifting and clearance space for the first fixed plate 32 and the first rack 31. Its length is greater than the effective length of the first rack 31, ensuring that the swing component 30 can complete the driving action during the entire upward movement of the lifting chamber 11.

[0030] As one embodiment, according to the appendix to the specification Figure 4 To be continued Figure 5 It is known that the blocking component 40 includes a second rack 41, which is vertically disposed in the lifting chamber 11 above the first rack 31, with its lower end abutting against the upper end of the first rack 31; the first end of the arc-shaped rack 42 is fixedly connected to the upper end of the second rack 41; the first end of the second fixing plate 43 passes through the second elongated slot 101 and is fixedly connected to the second rack 41, and the second end of the second fixing plate 43 is connected to the fixing chamber 10 through the first elastic component 50.

[0031] When the protective frame 12 reaches the set opening angle, the third gear 26 and the second rack 41 engage. The upper end of the second rack 41 is connected to the arc rack 42. The curvature of the arc rack 42 matches the movement trajectory of the third gear 26, so that the third gear 26 can only rotate to the set angle and then be limited. The protective frame 12 stops swinging. At this time, the second fixed plate 43 rises synchronously with the lifting chamber 11, driving the second rack 41 and the arc rack 42 to move upward as a whole, so that the third gear 26 remains engaged with the second rack 41. The protective frame 12 remains stationary and open. When the lifting chamber 11 descends and the third gear 26 returns to the position of the first rack 31, the second rack 41 and the third gear 26 disengage, the blocking effect is released, and the protective frame 12 can be reset and closed.

[0032] As one embodiment, according to the appendix to the specification Figure 5 It is known that the first elastic component 50 includes a first guide cylinder 51, which is vertically fixed at the upper end of the fixed chamber 10; a first guide shaft 52 is coaxially slidably disposed in the first guide cylinder 51, the upper end of the first guide shaft 52 passes through the upper end of the first guide cylinder 51 and is fixedly connected to the second end of the second fixed plate 43, and a first spring 53 is provided in the first guide cylinder 51 between the lower end of the first guide shaft 52 and the lower end of the interior of the first guide cylinder 51.

[0033] When the second fixed plate 43 moves upward, it pulls the first guide shaft 52 to slide upward along the first guide cylinder 51. The upward movement of the first guide shaft 52 stretches the first spring 53 and stores elastic force. When the lifting chamber 11 descends and the second fixed plate 43 loses its upward pulling force, the first spring 53 contracts under the action of elastic force, pulling the first guide shaft 52, the second fixed plate 43, and the second rack 41 downward to reset. The first guide cylinder 51 and the first guide shaft 52 form a coaxial guide, ensuring that the second rack 41 moves straight, meshes accurately, and does not deviate.

[0034] Specifically, the first spring 53 is made of stainless steel, which improves its corrosion resistance and lifespan at the construction site.

[0035] As one embodiment, according to the appendix to the specification Figure 6 It is known that the lifting assembly 60 includes a first screw 61, which is vertically fixed at the lower end of the lifting chamber 11; a first rotating sleeve 62 is rotatably mounted in the fixed chamber 10 and coaxially sleeved on the first screw 61, and the first screw 61 is threadedly connected to the inner wall of the first rotating sleeve 62; a third bevel gear 63 is located in the fixed chamber 10 and rotates under the drive of the first driving member 65, and the third bevel gear 63 meshes with a fourth bevel gear 64 fixed on the first rotating sleeve 62.

[0036] The first driving component 65 drives the third bevel gear 63 to rotate. The third bevel gear 63 meshes with the fourth bevel gear 64, driving the first rotating sleeve 62 to rotate inside the fixed chamber 10. The inner wall of the first rotating sleeve 62 is threadedly engaged with the first screw 61. The upper end of the first screw 61 is fixedly connected to the bottom of the lifting chamber 11. When the first rotating sleeve 62 rotates, the first screw 61 moves up and down along the axial direction, pushing the lifting chamber 11 up and down along the inner wall of the fixed chamber 10. The threaded pair has a self-locking function, and the lifting chamber 11 can stop at any height and remain stable without sliding down.

[0037] Specifically, the first driving component 65 can be a first handwheel, in which case the first handwheel shaft is fixedly connected to the third bevel gear 63; or it can be a first motor, in which case the first motor shaft is fixedly connected to the third bevel gear 63. Both the first handwheel and the first motor are installed in a groove on the outside of the first side of the fixed compartment 10, and an openable door is installed at the opening of the groove.

[0038] As one embodiment, according to the appendix to the specification Figure 7It is known that a stabilizing component 70 is provided at the bottom of the fixed compartment 10. The stabilizing component 70 includes a fifth bevel gear 71, which is located inside the fixed compartment 10 and rotates under the drive of the second driving component 76. A fifth rotating shaft 72 is horizontally mounted inside the fixed compartment 10 below the lifting component 60. A sixth bevel gear 73 on the fifth rotating shaft 72 meshes with the fifth bevel gear 71. Two symmetrical ground insertion components 80 are located at the bottom of the fixed compartment 10 and are respectively connected to the fifth rotating shaft 72. When the fifth rotating shaft 72 rotates, the two ground insertion components 80 are inserted into or removed from the ground.

[0039] The second driving component 76 drives the fifth bevel gear 71 to rotate. The fifth bevel gear 71 meshes with the sixth bevel gear 73, causing the fifth rotating shaft 72 to rotate horizontally. The two ends of the fifth rotating shaft 72 are respectively connected to the left and right ground plug components 80, so that the two ground plug components 80 move synchronously. When the fifth rotating shaft 72 rotates in the forward direction, the ground plug components 80 extend downward and insert into the ground to fix the device. When the fifth rotating shaft 72 rotates in the reverse direction, the ground plug components 80 retract upward and detach from the ground, so that the device can be moved or transported.

[0040] Specifically, the second drive component 76 can be a second handwheel, in which case the second handwheel shaft is fixedly connected to the fifth bevel gear 71; or it can be a second motor, in which case the second motor shaft is fixedly connected to the fifth bevel gear 71. Both the second handwheel and the second motor are installed in a groove on the outside of the first side of the fixed compartment 10, and an openable door is installed at the opening of the groove.

[0041] As one embodiment, according to the appendix to the specification Figure 7 It is known that the floor plug assembly 80 includes a fixed plate 81, which is fixed in the through hole at the bottom of the fixed compartment 10; multiple plug rods 82 are evenly distributed on the circumferential surface of the fixed plate 81 along the circumferential direction of the fixed plate 81, the threaded section on the plug rod 82 is connected to the through thread on the fixed plate 81, the sixth rotating shaft 83 is vertically rotated in the middle of the fixed plate 81, the upper end of which is fixed with a seventh bevel gear 74 that meshes with an eighth bevel gear 75 on the fifth rotating shaft 72, the fourth gear 84 fixed on which meshes with a fifth gear 85 at the top of the plug rod 82, and the fourth gear 84 and the fifth gear 85 are always meshed during the process of the plug rod 82 driving the fifth gear 85 to rise and fall.

[0042] The eighth bevel gear 75 on the fifth rotating shaft 72 drives the seventh bevel gear 74 to rotate, causing the sixth rotating shaft 83 to rotate. The fourth gear 84 on the sixth rotating shaft 83 meshes with multiple fifth gears 85 simultaneously, driving each insertion rod 82 to rotate synchronously. The threaded section of the insertion rod 82 engages with the through-hole thread of the fixed plate 81. When rotating, it extends downward along the axial direction and penetrates the ground. During the lifting and lowering process of the insertion rod 82, the fourth gear 84 and the fifth gear 85 always remain engaged, without disengaging or skipping teeth. The transmission is continuous and reliable. Multiple insertion rods 82 are evenly distributed along the circumference, with a large ground contact area and firm fixation, which can adapt to the soil surface of the construction site.

[0043] Specifically, the lower end of the insertion rod 82 is equipped with a spike structure to facilitate insertion into hard ground; the bottom of the fixing plate 81 is equipped with a sealing gasket to prevent mud and sand from entering the gearbox.

[0044] As one embodiment, according to the appendix to the specification Figure 1 Appendix Figure 8 It is known that the second side of the fixed compartment 10 is provided with a collision protection component, which includes a first collision protection plate 91, which is slidably disposed on the second side of the fixed compartment 10. The first collision protection plate 91 is connected to the second side of the fixed compartment 10 through a second elastic component 94. The second collision protection plate 92 is slidably disposed inside the first collision protection plate 91. The upper end of the second collision protection plate 92 extends out of the upper end of the second collision protection plate 92. One side of the upper end of the second collision protection plate 92 is connected to the second side of the lifting compartment 11 through a third elastic component 93.

[0045] The first anti-collision plate 91 is installed on the side of the fixed compartment 10 via the second elastic component 94. When subjected to a horizontal impact, it can retract inward to buffer and absorb impact energy. The second anti-collision plate 92 is nested inside the first anti-collision plate 91 and can slide up and down. The upper end of the second anti-collision plate 92 is connected to the side of the lifting compartment 11 via the third elastic component 93 and rises and falls synchronously with the lifting compartment 11. When the lifting compartment 11 rises, the second anti-collision plate 92 extends upward, so that the overall anti-collision height is raised synchronously to cover the full protection height. When the lifting compartment 11 descends, the second anti-collision plate 92 falls down and is stored inside the first anti-collision plate 91, reducing the overall volume.

[0046] As one embodiment, according to the appendix to the specification Figure 8 It can be seen that the second elastic component 94 has the same structure as the third elastic component 93. The second elastic component 94 includes a second guide cylinder 95, the first end of which is horizontally fixed on the second side of the fixed chamber 10; the first end of the second guide shaft 96 is fixed on the first anti-collision plate 91 and is coaxial with the second guide cylinder 95; the second end of the second guide shaft 96 is nested in the second guide cylinder 95; and a second spring 97 is provided in the second guide cylinder 95 between the second end of the second guide shaft 96 and the first end of the second guide cylinder 95.

[0047] When subjected to impact or thrust, the second guide shaft 96 slides inward along the second guide cylinder 95, compressing the second spring 97. The second spring 97 deforms to absorb the impact energy, reducing the damage of the impact force to the device. After the external force disappears, the second spring 97 extends under the action of elastic force, pushing the second guide shaft 96 to reset outward, so that the anti-collision plate returns to its initial position.

[0048] This invention provides a bridge and tunnel protection device, which is used as follows: Initially, the protective frame 12 is closed and the lifting chamber 11 is at its lowest position. When protection work is required, the lifting assembly 60 is activated, driving the lifting chamber 11 upwards. The top of the lifting chamber 11 simultaneously raises the protective frame 12. During the initial rise, the swing assembly 30 is triggered, transmitting power to the protective frame 12 via the transmission assembly. This causes the protective frame 12 to slowly swing outwards from its closed state until it reaches a preset opening position. When the protective frame 12 reaches the set opening position, the transmission assembly and the blocking assembly 40 automatically engage. The blocking assembly 40 limits the transmission assembly, stopping the swing of the protective frame 12 and keeping it in a stationary open state. Afterwards, the lifting chamber 11 continues to move upwards, causing the stationary open protective frame 12 and the blocking assembly 40 to rise synchronously, further increasing the protection height and range.

[0049] When construction is completed and storage is required, the lifting assembly 60 drives the lifting chamber 11 to move downwards. The lifting chamber 11 first lowers the protective frame 12, which remains stationary and open, in sync with the blocking assembly 40. When it reaches the position of the swing assembly 30, the transmission assembly automatically disengages from the blocking assembly 40 and re-establishes a transmission connection with the swing assembly 30. The swing assembly 30, through the transmission assembly, drives the protective frame 12 to swing in the opposite direction, gradually returning it from the open state to the closed state. After the protective frame 12 is fully closed, the lifting chamber 11 descends to its lowest position and stops, completing the entire storage process. This system enables integrated action of raising the protective height and simultaneously deploying the protective net 13, without manual assistance. It is suitable for various bridge, tunnel, slope, and elevated construction scenarios, providing a wide protection range with no blind spots.

[0050] It should be noted that in this patent application, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0051] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should all be included within the protection scope of the present invention.

Claims

1. A bridge and tunnel protection device, characterized in that, include, A fixed compartment (10) is provided with a lifting compartment (11) inside. The top of the lifting compartment (11) passes through the top of the fixed compartment (10). The lifting compartment (11) is lifted and lowered under the drive of the lifting assembly (60). A protective frame (12) is provided on the first side of the top of the elevator (11), and a protective net (13) is fixed inside the protective frame (12). When the lifting chamber (11) rises, it drives the protective frame (12) to rise synchronously. At the same time, the swing assembly (30) causes the protective frame (12) to swing from a closed position to a set opening position through the transmission assembly. After the protective frame (12) swings to the opening position, the transmission assembly connects with the blocking assembly (40), and the protective frame (12) stops swinging. The lifting chamber (11) continues to drive the stationary protective frame (12) and the blocking assembly (40) to rise synchronously. When the lifting chamber (11) descends, the lifting chamber (11) drives the stationary protective frame (12) and the blocking component (40) to descend synchronously. When it descends to the swing component (30), the transmission component disengages from the blocking component (40) and connects with the swing component (30). The swing component (30) causes the protective frame (12) to swing from the set opening position to the closing position through the transmission component, and the lifting chamber (11) stops descending.

2. The bridge and tunnel protection device according to claim 1, characterized in that, The transmission assembly includes: The first rotating shaft (21) is horizontally fixed on the first side of the protective frame (12) near the lifting chamber (11), and the two ends of the first rotating shaft (21) are connected to the two rotating shafts on the first side of the lifting chamber (11); The second rotating shaft (22) is parallel to the first rotating shaft (21) and is mounted inside the lifting chamber (11). The first gear (23) fixed on the second rotating shaft (22) passes through the first through slot (111) on the first side of the lifting chamber (11) and meshes with the second gear (24) fixed on the first rotating shaft (21). The third rotating shaft (25) is parallel to the lifting chamber (11) below the second rotating shaft (22), and the third rotating shaft (25) is alternately connected to the swing assembly (30) and the blocking assembly (40); The fourth rotating shaft (27) is vertically mounted in the lifting chamber (11) between the second rotating shaft (22) and the third rotating shaft (25). The two first bevel gears (28) fixed at both ends of the shaft mesh with the two second bevel gears (29) on the second rotating shaft (22) and the third rotating shaft (25), respectively.

3. A bridge and tunnel protection device according to claim 2, characterized in that, The swing assembly (30) includes: The first rack (31) is vertically installed inside the lifting chamber (11), and the first rack (31) meshes with the third gear (26) on the third rotating shaft (25); The first fixed plate (32) is fixed inside the fixed chamber (10). One end of the plate passes through the second long slot (101) of the lifting chamber (11) and is fixed to the first rack (31). The length of the second long slot (101) is greater than the length of the first rack (31).

4. A bridge and tunnel protection device according to claim 3, characterized in that, The blocking assembly (40) includes: The second rack (41) is vertically installed in the lifting chamber (11) above the first rack (31), and its lower end abuts against the upper end of the first rack (31). The first end of the arc-shaped rack (42) is fixedly connected to the upper end of the second rack (41); The second fixing plate (43) has its first end passing through the second long slot (101) and then fixed to the second rack (41). The second end of the second fixing plate (43) is connected to the fixing chamber (10) through the first elastic component (50).

5. A bridge and tunnel protection device according to claim 4, characterized in that, The first elastic component (50) includes: The first guide cylinder (51) is vertically fixed at the upper end of the fixed chamber (10); The first guide shaft (52) is coaxially slidably disposed inside the first guide cylinder (51). The upper end of the first guide shaft (52) passes through the upper end of the first guide cylinder (51) and is fixedly connected to the second end of the second fixing plate (43). A first spring (53) is provided inside the first guide cylinder (51) between the lower end of the first guide shaft (52) and the lower end of the interior of the first guide cylinder (51).

6. A bridge and tunnel protection device according to claim 1, characterized in that, The lifting assembly (60) includes: The first screw (61) is vertically fixed at the lower end of the lifting chamber (11); The first rotating sleeve (62) is rotated inside the fixed chamber (10) and coaxially sleeved on the first screw (61). The first screw (61) is threadedly connected to the inner wall of the first rotating sleeve (62). The third bevel gear (63) is located in the fixed chamber (10) and rotates under the drive of the first driving member (65). The third bevel gear (63) meshes with the fourth bevel gear (64) fixed on the first rotating sleeve (62).

7. A bridge and tunnel protection device according to claim 1, characterized in that, The bottom of the fixed chamber (10) is provided with a stabilizing component (70), the stabilizing component (70) including: The fifth bevel gear (71) is located in the fixed chamber (10) and rotates under the drive of the second drive member (76); The fifth rotating shaft (72) is horizontally mounted in the fixed compartment (10) below the lifting assembly (60), and the sixth bevel gear (73) on the fifth rotating shaft (72) meshes with the fifth bevel gear (71); Two symmetrical ground insertion components (80) are located at the bottom of the fixed compartment (10) and are respectively connected to the fifth rotating shaft (72). When the fifth rotating shaft (72) rotates, the two ground insertion components (80) are inserted into the ground or removed from the ground.

8. A bridge and tunnel protection device according to claim 7, characterized in that, The ground insertion assembly (80) includes: A fixed plate (81) is fixedly disposed in the through hole at the bottom of the fixed chamber (10); Multiple insert rods (82) are evenly distributed on the circumferential surface of the fixed disk (81) along the circumferential direction. The threaded sections on the insert rods (82) are connected to the through-hole threads on the fixed disk (81). The sixth rotating shaft (83) is vertically mounted in the middle of the fixed disk (81). The upper end of the shaft is fixed with the seventh bevel gear (74) which meshes with the eighth bevel gear (75) on the fifth rotating shaft (72). The fourth gear (84) fixed on the shaft meshes with the fifth gear (85) at the top of the insert rod (82). During the process of the insert rod (82) driving the fifth gear (85) to rise and fall, the fourth gear (84) and the fifth gear (85) are always meshed.

9. A bridge and tunnel protection device according to claim 1, characterized in that, The second side of the fixed compartment (10) is provided with a collision protection component, which includes: The first anti-collision plate (91) is slidably disposed on the second side of the fixed compartment (10), and the first anti-collision plate (91) is connected to the second side of the fixed compartment (10) through the second elastic component (94); The second anti-collision plate (92) is slidably installed inside the first anti-collision plate (91). The upper end of the second anti-collision plate (92) extends out of the upper end of the first anti-collision plate (91). One side of the upper end of the second anti-collision plate (92) is connected to the second side of the lifting chamber (11) through the third elastic component (93).

10. A bridge and tunnel protection device according to claim 9, characterized in that, The second elastic component (94) has the same structure as the third elastic component (93), and the second elastic component (94) includes: The second guide cylinder (95) has its first end horizontally fixed on the second side of the fixed chamber (10); The second guide shaft (96) has its first end fixed on the first anti-collision plate (91) and coaxial with the second guide cylinder (95). The second end of the second guide shaft (96) is nested in the second guide cylinder (95). A second spring (97) is provided in the second guide cylinder (95) between the second end of the second guide shaft (96) and the first end of the second guide cylinder (95).

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