Safety protection device for traffic under construction of viaduct
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-17
- Publication Date
- 2026-08-11
AI Technical Summary
由于高架桥施工期间，尚未施工完全，桥面可能存在缝隙，容易导致高空坠物或是施工材料滑落，这时候如果桥下为通行通道，则容易引发安全事故，因此需要设置安全防护装置
[0013] In summary, this application includes the following beneficial technical effects: by setting the slide rail and the rotating component, the orientation of the slide rail can be changed, thereby pushing the lifting vehicle to the position of the relative center of the protective plate after the slide rail angle changes, thus reducing the center of gravity shift of a single protective plate when the safety protection device is disassembled or pulled apart due to the disassembly or removal of the connecting components between the protective plates.
Smart Images
Figure CN224620449U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of elevated bridge construction technology, and in particular to a safety protection device for traffic under elevated bridge construction. Background Technology
[0002] Elevated bridge construction refers to the systematic engineering activities undertaken to build an elevated bridge structure that crosses ground obstacles (such as roads, rivers, railways, etc.). Because elevated bridge construction is not yet complete, gaps may exist in the bridge deck, making it prone to falling objects or slipping construction materials. If the area beneath the bridge is a passageway, this can easily lead to safety accidents; therefore, safety protection devices are necessary.
[0003] Existing safety protection devices often consist of multiple pillars and scaffolding supporting a series of interconnected panels. Because the area beneath the panels is intended to serve as a passageway, the supporting structures are installed at multiple corners of the assembled panels. This means that during the later dismantling of the safety protection device, if one of the supporting structures is removed, that corner of the panel will lose its support and tilt under gravity, causing damage to the connection structures between the panels, as well as the connections between the remaining panels and the supporting structures. This affects subsequent use and poses a safety hazard. Therefore, this application proposes a new technical solution. Utility Model Content
[0004] To mitigate the shift in the center of gravity during the disassembly of safety protection devices, this application provides a safety protection device for passage under elevated bridge construction.
[0005] This application provides a safety protection device for traffic under the construction of an elevated bridge, which adopts the following technical solution: A safety protection device for passage under the construction of an elevated bridge includes a protection mechanism and a support mechanism. The protection mechanism includes multiple protective plates, a slide rail rotatably connected to the lower surface of the protective plates, and a rotating component for driving the slide rail to rotate. The movable end of the slide rail and the protective plates are both provided with a pin for locking the slide rail. The rotating component is located at one end of the slide rail with a fixed position. Multiple protective plates are spliced together, and a connecting component is provided between two adjacent protective plates to connect the two protective plates. The support mechanism includes multiple lifting vehicles, and each lifting vehicle corresponds to one protective plate. The top of the lifting vehicle is slidably connected to a slide rail.
[0006] Optionally, the connecting assembly includes multiple buckles, one end of which passes through the protective plate and is rotatably connected to a pre-drilled through hole in the protective plate. The buckle extends out of the protective plate and is fixed with a circular plate, the diameter of which is larger than the diameter of the through hole. The other end of the buckle extends out of the protective plate and is bent toward one side of an adjacent protective plate to form an overlapping section. The sidewall of the overlapping section abuts against the protective plate. The multiple buckles are distributed along the length and / or width of the protective plate, and the buckles on adjacent protective plates are staggered, with the distance between each pair of adjacent buckles being at least greater than the length of the overlapping section.
[0007] Optionally, the rotating assembly of the slide rail includes a rotating shaft, a first gear, and a second gear. The rotating shaft is fixed to the slide rail and passes through the slide rail and the protective plate above it. The end of the rotating shaft extends upward through a pre-drilled hole in the protective plate. The first gear is fitted onto the section of the rotating shaft that extends out of the protective plate, and the second gear meshes with the first gear. The second gear is fixedly connected to a crank for driving the second gear to rotate.
[0008] Optionally, the upper surface of the protective plate is provided with an inspection component for detecting whether multiple buckles are misaligned or damaged. The inspection component includes multiple sets of laser beam sensors. The overlapping section of the buckle is provided with an inspection hole. Multiple protective plates are spliced together to form a top plate. The transmitter and receiver of the laser beam sensor are respectively installed on opposite sides of the top plate, and the laser detection line passes through the inspection hole of the overlapping section when it is moved to the preset locking position.
[0009] Optionally, the protective plate has multiple sliding grooves cut along its length and width, and the multiple sliding grooves are correspondingly set at the preset locking positions of each overlapping section. Sliding plates are slidably connected in the sliding grooves, and the protective plate is provided with a screw rod. The screw rod passes through multiple sliding plates and is threadedly connected to multiple sliding plates. One end of the screw rod extends out of the protective plate, and a turntable for rotating the screw rod is installed at the end.
[0010] Optionally, the upper surface of the sliding plate is provided with an elongated groove that is arc-shaped when viewed from the side. The elongated groove extends along the moving direction of the sliding plate and is open at both ends. A ball bearing is embedded at the bottom of the overlapping section and the ball bearing protrudes from the overlapping section. When the overlapping section is moved to a preset locking position, the ball bearing is located in the elongated groove.
[0011] Optionally, the lifting vehicle is equipped with a safety component for locking the lifting vehicle. The safety component includes multiple connecting blocks fixedly connected to the base of the lifting vehicle and a locking pin rotatably connected to the connecting blocks. The locking pin is vertically inserted through the corresponding connecting block, and the bottom end of the locking pin is provided with a rubber block for increasing friction.
[0012] Optionally, the edges of the spliced protective panels are provided with tarpaulins.
[0013] In summary, this application includes the following beneficial technical effects: by setting the slide rail and the rotating component, the orientation of the slide rail can be changed, thereby pushing the lifting vehicle to the position of the relative center of the protective plate after the slide rail angle changes, thus reducing the center of gravity shift of a single protective plate when the safety protection device is disassembled or pulled apart due to the disassembly or removal of the connecting components between the protective plates. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of this application; Figure 2 This is a schematic diagram of the slide rail structure in this application; Figure 3 This is a schematic diagram of the sliding groove and its related structures in this application; Figure 4 This is a schematic diagram of the structure of the insurance component in this application.
[0015] Explanation of reference numerals in the attached drawings: 1. Protective mechanism; 11. Protective plate; 111. Screw; 112. Sliding groove; 113. Sliding plate; 114. Long groove; 115. Turntable; 12. Slide rail; 13. Rotating assembly; 131. Gear one; 132. Gear two; 133. Rotating shaft; 134. Handle; 14. Cover; 15. Pin; 16. Buckle plate; 161. Overlap section; 162. Circular plate; 17. Laser beam sensor; 2. Lifting vehicle; 3. Safety assembly; 31. Locking pin; 32. Connecting block; 33. Rubber block. Detailed Implementation
[0016] The following is in conjunction with the appendix Figures 1-4 This application will be described in further detail.
[0017] This application discloses a safety protection device for traffic during bridge construction.
[0018] Reference Figure 1 and Figure 2 The safety protection device for passage under the construction of the viaduct includes a protection mechanism 1 and a support mechanism. The protection mechanism 1 includes multiple protective plates 11, a slide rail 12, and a rotating component 13 that drives the slide rail 12 to rotate. The multiple protective plates 11 are spliced together to form a complete plate body. The plate body is located under the viaduct and is used to catch construction materials and other materials falling into the gaps of the viaduct. The edge of the spliced plate body is provided with a cloth 14. A vertical rod for fixing the cloth 14 can be inserted or welded to a corner of the multiple protective plates 11. The cloth 14 passes around the vertical rod and is fixed to the upper surface of the protective plate 11. The cloth 14 can be glued to the vertical rod.
[0019] The slide rail 12 is rotatably connected to the lower surface of the protective plate 11, and each slide rail 12 corresponds to one protective plate 11. A locking pin 15 is provided between the movable end of the slide rail 12 and the protective plate 11 to prevent the slide rail 12 from moving freely. The top end of the pin 15 extends out of the protective plate 11 and outwards, thereby preventing the pin 15 from slipping out of the pin hole.
[0020] After multiple protective plates 11 are spliced together, a connecting component is provided between each pair of adjacent protective plates 11, and any two protective plates 11 are connected into one unit through the connecting component. The support mechanism includes multiple lifting vehicles 2, and each lifting vehicle 2 corresponds to one protective plate 11. The lifting vehicle 2 can be a scissor-type cross hydraulic lifting vehicle. The top of the lifting vehicle 2 is slidably connected to the slide rail 12. For example, the top is provided with a T-shaped slide groove, and the slide groove is slidably connected to the slide rail 12. The two ends of the slide groove are sealed to prevent the lifting vehicle 2 from sliding out of the two ends of the slide groove. The sealing can be done by fixing the sealing plate to the slide groove with bolts and nuts. Before the lifting vehicle 2 needs to be connected to the slide groove, one end of the slide rail 12 is set open. After the lifting vehicle 2 slides in, it is sealed.
[0021] According to the above configuration, the orientation of the slide rail 12 can be changed by the configuration of the slide rail 12 and the rotating component 13. After the angle of the slide rail 12 changes, the lifting vehicle 2 is pushed to move to a position directly below or relatively to the center of the protective plate 11. This reduces the risk of the center of gravity of a single protective plate 11 shifting due to the disassembly or removal of the connecting components between the protective plates 11 when disassembling the safety protection device. It also reduces the damage to the connecting structure between the protective plate 11 and the lifting vehicle 2 caused by the shift in the center of gravity, thus improving the safety of disassembly to a certain extent. Furthermore, it eliminates the need to lift the protective plate 11 with the shifted center of gravity, improving the convenience of disassembly.
[0022] Reference Figure 2 and Figure 3 The connecting assembly includes multiple buckle plates 16. One end of each buckle plate 16 passes through a protective plate 11 and is rotatably connected to a pre-drilled through hole in the protective plate 11. The other end extends out of the protective plate 11 and is fixed with a circular plate 162. The portion passing through the protective plate 11 can be cylindrical for easy rotation. The diameter of the circular plate 162 is larger than the diameter of the through hole, effectively preventing the buckle plate 16 from slipping off. The other end of the buckle plate 16 extends out of the protective plate 11 and bends towards one side of the adjacent protective plate 11 to form an overlapping section 161. That is, the buckle plate 16 is inverted L-shaped when viewed from the side, and the overlapping section 161 is a transverse section. The bottom sidewall of the overlapping section 161 abuts against the protective plate 11. Multiple buckle plates 16 are distributed along the length or width of the protective plate 11. After the multiple buckle plates 16 are rotated, they overlap the protective plate 11, thus fixing the multiple protective plates 11 together. The distance between each pair of adjacent buckle plates 16 is at least greater than the length of the overlap section 161 of the buckle plates 16. The multiple buckle plates 16 on the two adjacent protective plates 11 are staggered.
[0023] According to the above configuration, multiple buckle plates 16 can be overlapped with adjacent protective plates 11 through overlapping sections 161. Each pair of adjacent protective plates 11 can leverage each other to connect multiple protective plates 11 into one unit, which is more convenient to use.
[0024] Reference Figure 1 and Figure 4 This application also includes a rotating assembly 13 for adjusting the angle of the drive rail 12. The rotating assembly 13 includes a rotating shaft 133, a first gear 131, and a second gear 132. The rotating shaft 133 is fixed to the rail 12 (e.g., by welding or by bolts and nuts), and the rotating shaft 133 passes through the protective plate 11. The end of the rotating shaft 133 extends upward through a pre-drilled hole in the protective plate 11. The first gear 131 is fitted onto the section of the rotating shaft 133 extending out of the protective plate 11, and the first gear 131 meshes with the second gear 132. The second gear 132 is fixedly connected to a crank handle 134 that drives the second gear 132 to rotate. The crank handle 134 can be inserted into a pre-drilled center hole or slot in the center of the second gear 132 and then fixed with bolts and nuts. By manually rotating the crank handle 134, the second gear 132 is driven to rotate, which in turn drives the meshing first gear 131 to rotate.
[0025] The diameter of gear 132 is smaller than that of gear 131. Because gear 132 has a smaller diameter, it is easier to adjust the rotation angle of gear 131 and even slide rail 12 more precisely through gear 132.
[0026] The upper surface of the protective plate 11 is provided with an inspection component for checking whether multiple buckles 16 are misaligned or damaged. The inspection component includes multiple sets of laser beam sensors 17. Multiple protective plates 11 are spliced together to form a top plate. The transmitter and receiver of the laser beam sensor 17 are located on two opposite side walls of the top plate. That is, each protective plate 11 may only have one of the transmitter and receiver of the laser beam sensor 17 installed on it. After the protective plates 11 are spliced together to form a top plate, the transmitter and receiver of the same set of laser beam sensors 17 are in opposite positions.
[0027] The overlapping section 161 of the buckle 16 has an inspection hole. When the overlapping section is moved to the preset locking position (the locking position can be preset by the staff, such as locking after moving 90°), the laser detection line of the laser beam sensor 17 passes through the inspection hole of the overlapping section 161. Thus, it can be determined whether there is a misalignment or damage to the buckle 16 by detecting whether the signal of the laser beam sensor 17 is received. If there is a misalignment or damage, the laser may be blocked by a buckle 16, and the signal emitted by the laser beam sensor 17 may not be received.
[0028] In another embodiment of this application: If the overlapping section 161 is too tightly attached to the upper surface of the protective plate 11, it may obstruct the turning action. Therefore, the following design is made: Reference Figure 3 The protective plate 11 has multiple sliding grooves 112 cut along its length or width. The sliding grooves 112 are located on the side of each pair of protective plates 11 that are close to each other after being spliced together. The multiple sliding grooves 112 are located at the preset locking positions of each overlapping section 161, and the size of the sliding groove 112 is larger than that of the overlapping section 161, at least the length of the sliding groove 112 is greater than the width of the overlapping section 161. A sliding plate 113 is slidably connected in each sliding groove 112. A screw 111 passes through the protective plate 11 and is threaded to the multiple sliding plates 113. The screw 111 is used to rotate and drive the sliding plates 113 to slide in the groove. The screw 111 may only have threaded structures in the multiple segments located in the sliding groove 112, while the multiple segments passing through the protective plate 11 may not have threaded structures and can rotate within the protective plate 11.
[0029] One end of the screw 111 extends out of the protective plate 11, and a turntable 115 for rotating the screw 111 is installed (e.g., welded) at the extended end. The turntable 115 should be installed on multiple opposite outer walls of the protective plate 11 after they are spliced into a top plate, which is more convenient for operation and will not hinder the splicing of the protective plate 11.
[0030] With the above setup, the operator can rotate the turntable 115 to drive the screw 111 to rotate inside the protective plate 11. Since the screw 111 and the sliding plate 113 are threadedly connected, the rotation of the screw 111 can drive the sliding plate 113 to move along the direction of the sliding groove 112. When it is necessary to separate the overlapping section 161, the turntable 115 can be rotated first to move multiple sliding plates 113 away at the same time, so that they are separated from the overlapping section 161. Then the overlapping section 161 can be separated one by one, which is more labor-saving.
[0031] In another embodiment of this application: To further reduce effort and to lock the overlapping section 161 after it has been moved, this application makes the following settings: The upper surface of the sliding plate 113 is provided with an elongated groove 114. The length direction of the elongated groove 114 is the same as the moving direction of the sliding plate 113, and both ends of the elongated groove 114 are open. The groove wall of the elongated groove 114 is curved. A ball bearing is embedded in the bottom of the overlapping section 161. The part of the ball bearing protruding from the overlapping section 161 abuts against the groove wall of the elongated groove 114. When the overlapping section 161 is in a preset locking position, the ball bearing is located in the elongated groove 114.
[0032] With the above configuration, the ball bearings significantly reduce friction between the sliding plate 113 and the overlapping section 161 during sliding, making the sliding process more effortless. The initial position of the sliding plate 113 is one end within the sliding groove 112 (i.e., avoiding the preset locking position of the overlapping section 161). After the overlapping section 161 is moved to the preset locking position, the turntable 115 at the end is rotated, causing the screw 111 to drive the sliding plate 113 to slide to the overlapping section 161. At this time, the ball bearings are engaged in the elongated groove 114. Since the elongated groove 114 is opened along the length of the sliding plate 113, the overlapping section 161 cannot continue to rotate, thus providing a certain locking effect on the overlapping section. In order for the ball to roll into the long groove 114 more smoothly, the openings at both ends of the long groove 114 can be designed as gradually expanding openings, that is, the width of the groove openings at both ends of the long groove 114 is larger, so as to guide the ball to be inserted smoothly. Moreover, if the position of the overlapping section 161 is slightly offset after being moved, this design also plays a certain corrective role.
[0033] Reference Figure 4 The lifting vehicle 2 is equipped with a safety component 3 for locking the lifting vehicle 2. The safety component 3 includes multiple connecting blocks 32 fixedly connected to the base of the lifting vehicle 2 and a locking pin 31 rotatably connected to the connecting blocks 32. The locking pin 31 can be threaded to the connecting blocks 32, and the locking pin 31 extends vertically through the connecting blocks 32. The bottom end of the locking pin 31 is glued or snapped (e.g., the bottom end of the locking pin 31 is provided with a groove for a rubber block 33 to be inserted, and the protruding groove of the rubber block 33 is used to abut against the ground) to increase the friction of the rubber block 33. With the above configuration, when the lifting vehicle 2 moves to a designated position and needs to stop, the locking pin 31 can be rotated to make the rubber block 33 abut against the ground, increasing the friction and further preventing the lifting vehicle 2 from still displacing after it stops moving, thus improving the safety of this application.
[0034] How to use: When it is necessary to disassemble the safety protection device, first turn the locking pin 31 upward so that the rubber block 33 is no longer in contact with the ground, then manually turn the crank 134 to drive gear one 131 and gear two 132, so that the slide rail 12 changes angle.
[0035] Push the lifting vehicle 2 along the slide rail 12 to the position of the protective plate 11 near the center, rotate the turntable 115 to separate the sliding plate 113 and the overlapping section 161, pry open the multiple buckles 16 so that the overlapping section 161 no longer overlaps with the adjacent protective plate 11, lower the lifting vehicle 2 to complete the disassembly of a single protective plate 11, and then continue to disassemble the remaining protective plates 11 in the above process.
[0036] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A safety protection device for traffic under elevated bridge construction, characterized in that: It includes a protective mechanism (1) and a support mechanism. The protective mechanism (1) includes multiple protective plates (11), a slide rail (12) rotatably connected to the lower surface of the protective plate (11), and a rotating component (13) for driving the slide rail (12) to rotate. The movable end of the slide rail (12) and the protective plate (11) are both provided with a pin (15) for locking the slide rail (12). The rotating component (13) is located at one end of the slide rail (12) where the position is fixed. Multiple protective plates (11) are spliced together and a connecting component is provided between two adjacent protective plates (11) to connect the two protective plates (11). The support mechanism includes multiple lifting vehicles (2) and each lifting vehicle (2) corresponds to one protective plate (11). The top of the lifting vehicle (2) is slidably connected to the slide rail (12).
2. The safety protection device for passage under elevated bridge construction as described in claim 1, characterized in that: The connecting assembly includes multiple buckles (16). One end of each buckle (16) passes through a protective plate (11) and is rotatably connected to a pre-drilled through hole in the protective plate (11). The end of the buckle (16) extends out of the protective plate (11) and is fixed with a circular plate (162). The diameter of the circular plate (162) is larger than the diameter of the through hole. The other end of the buckle (16) extends out of the protective plate (11) and is bent toward one side of the adjacent protective plate (11) to form an overlapping section (161). The sidewall of the overlapping section (161) abuts against the protective plate (11). The multiple buckles (16) are distributed along the length and / or width of the protective plate (11). The buckles (16) on two adjacent protective plates (11) are staggered and the distance between each two adjacent buckles (16) is at least greater than the length of the overlapping section (161).
3. The safety protection device for passage under elevated bridge construction as described in claim 1, characterized in that: The rotating assembly (13) of the slide rail (12) includes a rotating shaft (133), a first gear (131) and a second gear (132). The rotating shaft (133) is fixed to the slide rail (12) and passes through the slide rail (12) and the protective plate (11) above it. The end of the rotating shaft (133) extends upward through a pre-drilled hole in the protective plate (11). The first gear (131) is sleeved on the section of the rotating shaft (133) that extends out of the protective plate (11) and the first gear (131) meshes with the second gear (132). The second gear (132) is fixedly connected to a crank (134) for pushing the second gear (132) to rotate.
4. The safety protection device for passage under elevated bridge construction according to claim 2, characterized in that: The upper surface of the protective plate (11) is provided with an inspection component for detecting whether multiple buckles (16) are misaligned or damaged. The inspection component includes multiple sets of laser beam sensors (17). The overlapping section (161) of the buckle (16) is provided with an inspection hole. Multiple protective plates (11) are spliced together to form a top plate. The transmitter and receiver of the laser beam sensor (17) are respectively installed on opposite sides of the top plate, and the laser detection line passes through the inspection hole of the overlapping section (161) when it is moved to the preset locking position.
5. The safety protection device for passage under elevated bridge construction according to claim 2, characterized in that: The protective plate (11) has a plurality of sliding grooves (112) cut along its length and width. The plurality of sliding grooves (112) are respectively set at the preset locking positions of each overlapping section (161). Sliding plates (113) are slidably connected in the sliding grooves (112). A screw (111) is passed through the protective plate (11). The screw (111) passes through the plurality of sliding plates (113) and is threadedly connected to the plurality of sliding plates (113). One end of the screw (111) extends out of the protective plate (11), and a turntable (115) for rotating the screw is installed at the end.
6. The safety protection device for passage under elevated bridge construction according to claim 5, characterized in that: The upper surface of the sliding plate (113) is provided with an arc-shaped groove (114) in side view. The groove (114) extends along the moving direction of the sliding plate (113) and the two ends of the groove (114) are open. The bottom of the overlapping section (161) is embedded with a ball and the ball protrudes from the overlapping section (161). When the overlapping section (161) is moved to the preset locking position, the ball is located in the groove (114).
7. The safety protection device for passage under elevated bridge construction according to claim 1, characterized in that: The lifting vehicle (2) is provided with a safety component (3) for locking the lifting vehicle (2). The safety component (3) includes multiple connecting blocks (32) fixedly connected to the base of the lifting vehicle (2) and a locking pin (31) rotatably connected to the connecting blocks (32). The locking pin (31) is vertically inserted through the corresponding connecting block (32) and the bottom end of the locking pin (31) is provided with a rubber block (33) for increasing friction.
8. The safety protection device for passage under elevated bridge construction according to claim 1, characterized in that: The edges of the multiple protective panels (11) spliced together are provided with tarpaulins (14).