Falling object protection device for dismantling aluminum alloy pedestrian overpass

Abstract

The utility model relates to the technical field of construction, in particular to an anti-falling object protection device for dismantling an aluminum alloy pedestrian overpass, which comprises a fixing rod, a bottom frame and a protection plate, the fixing rod is fixedly arranged on lower chords on two sides of a main truss, two ends of the fixing rod are respectively provided with a connecting frame, one end of the connecting frame is connected with the fixing rod, and the other end of the connecting frame is connected with two sides of the bottom frame; extending frames are arranged on the two opposite sides of the underframe respectively, the extending frames and the connecting frames are located on the same side, one end of each extending frame is connected with the underframe, and the other end of each extending frame inclines away from the main truss in the direction from a lower chord to an upper chord of the main truss; the protection plate is located between the main truss and the bottom frame, and the protection plate is laid on the bottom frame and the extension frame. According to the anti-falling object protection device for dismantling the aluminum alloy pedestrian overpass, traffic does not need to be closed when an accessory structure of the overpass is dismantled, and it is guaranteed that the dismantling process is carried out safely.

Description

Technical Field

[0001] The utility model relates to the technical field of construction, in particular to a device for protecting against falling objects when removing an aluminum alloy pedestrian bridge. Background Art

[0002] The construction of the subway requires excavation of the foundation pit. When there is an aluminum alloy pedestrian bridge at the excavation location, the pedestrian bridge needs to be removed. The auxiliary structures on the bridge are usually fixed with rivets, and the rivets need to be pulled out when dismantling. If the traffic is closed for a long time when the auxiliary facilities are removed, it is easy to cause traffic congestion; if the rivets are not closed during the demolition, there is a risk of slipping and injuring the vehicles under the bridge when removing the rivets and other accessories. Utility Model Content

[0003] In order to solve the above problems, the utility model provides an aluminum alloy pedestrian bridge removal anti-falling object protection device, which can eliminate the need to close traffic when removing the auxiliary structure of the bridge and ensure the safety of the removal process.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] An aluminum alloy pedestrian bridge dismantling anti-falling object protection device comprises a fixing rod, a base frame and a protection plate.

[0006] The fixing rod is fixedly arranged on the lower chord rods on both sides of the main truss, and connecting frames are respectively arranged at both ends of the fixing rod, one end of the connecting frame is connected to the fixing rod, and the other end is connected to both sides of the bottom frame;

[0007] Extension frames are respectively arranged on opposite sides of the base frame, the extension frames and the connecting frame are located on the same side, one end of the extension frame is connected to the base frame, and the other end is inclined away from the main truss along the direction from the lower chord to the upper chord of the main truss;

[0008] The protection plate is located between the main truss and the base frame, and the protection plate is laid on the base frame and the extension frame.

[0009] Further, the fixing rod is connected to the lower chord rod through a first bolt;

[0010] The connecting frame comprises two connecting rods, one end of the connecting rods is connected to each other through a connecting block, and the connecting block is connected to the fixing rod through a second bolt, one end of the two connecting rods away from the connecting block is an open structure, and a first connecting member is fixedly arranged at one end of the connecting rod away from the connecting block, and the first connecting member is fixedly connected to the base frame through a third bolt;

[0011] The two ends of the extension frame are respectively fixedly provided with second connecting members, and the second connecting members are fixedly connected to the base frame through fourth bolts;

[0012] The protection plate is connected to the base frame and the extension frame through a fifth screw.

[0013] Furthermore, the base frame includes a frame body, a connecting pipe and a locking bolt. Two frames are arranged opposite to each other. Fixing holes are respectively provided at both ends of the frame body. The two ends of the frame bodies are respectively embedded in the two ends of the connecting pipe.

[0014] The connecting pipe is evenly and alternately provided with a plurality of penetrating adjustment holes, and the locking bolts are sequentially passed through the adjustment holes and the fixing holes and then fixed by locking nuts, so that the two ends of the frame can be fixed in the connecting pipe.

[0015] Furthermore, the two sides of the protection plate are colored steel tiles, the middle part of the protection plate is an accordion-type telescopic plate, the colored steel tiles are connected to the frame and the extension frame through the fifth screws, and the accordion-type telescopic plate is connected to the connecting pipe through the fifth screws.

[0016] Furthermore, a support rod is fixedly arranged between the two connecting pipes, and the accordion-type telescopic plate is connected to the support rod via the fifth screw.

[0017] The beneficial effects of the utility model are:

[0018] When dismantling the auxiliary structures such as the canopy endurance board, glass railings, and glass on the overpass, the accidentally fallen accessories can fall along the protective plate of the extension frame into the protective plate on the bottom frame, ensuring traffic safety and avoiding damage to vehicles or pedestrians. The utility model can block accidentally fallen accessories by setting an anti-falling device, effectively preventing accessories from falling on the road surface, so that when dismantling the auxiliary structures on the main truss of the overpass, there is no need to close traffic, ensuring that traffic is not affected. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of a preferred embodiment of the utility model for removing a falling object protection device for an aluminum alloy pedestrian bridge.

[0020] Figure 2 It is a schematic diagram of the underframe structure of the aluminum alloy pedestrian bridge for removing the anti-falling object protection device according to a preferred embodiment of the utility model.

[0021] Figure 3 It is a schematic diagram of the structure of a connecting frame for removing a falling object protection device of an aluminum alloy pedestrian bridge according to a preferred embodiment of the utility model.

[0022] Figure 4 It is a schematic diagram of the extension frame structure of the aluminum alloy pedestrian bridge for removing the anti-falling object protection device according to a preferred embodiment of the utility model.

[0023] In the figure, 1-fixing rod, 101-fixing piece, 11-connecting frame, 111-connecting rod, 112-connecting block, 113-first connecting piece, 2-base frame, 21-frame body, 22-connecting pipe, 221-adjusting hole, 23-locking bolt, 231-locking nut, 24-support rod, 3-protection plate, 31-color steel tile, 32-accordion telescopic plate, 4-extension frame, 41-second connecting piece, 51-first bolt, 511-first nut, 52-second bolt, 521-second nut, 53-third bolt, 531-third nut, 54-fourth bolt, 541-fourth nut, 55-fifth bolt, 551-fifth nut. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a component centered. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may also be a component centered. When a component is considered to be "set on" another component, it may be directly set on the other component or there may also be a component centered. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0027] Please also see Figures 1 to 4 A preferred embodiment of the utility model discloses an aluminum alloy pedestrian bridge removal anti-falling object protection device, comprising a fixing rod 1, a base frame 2 and a protection plate 3.

[0028] The fixing rod 1 is fixedly arranged on the lower chord rods on both sides of the main truss, and connecting frames 11 are respectively arranged at both ends of the fixing rod 1, one end of the connecting frame 11 is connected to the fixing rod 1, and the other end is connected to both sides of the bottom frame 2;

[0029] Extension frames 4 are respectively arranged on opposite sides of the base frame 2. The extension frames 4 and the connecting frame 11 are located on the same side. One end of the extension frame 4 is connected to the base frame 2, and the other end is inclined away from the main truss along the direction from the lower chord to the upper chord of the main truss.

[0030] The protection plate 3 is located between the main truss and the base frame 2 , and the protection plate 3 is laid on the base frame 2 and the extension frame 4 .

[0031] The auxiliary structures on the overpass are usually fixed with rivets, which need to be pulled out when they are dismantled. If the traffic is closed for a long time during the dismantling of the auxiliary facilities, it is easy to cause traffic congestion. If the traffic is not closed during dismantling, there is a risk of rivets and other accessories slipping and injuring vehicles under the bridge when they are removed.

[0032] The utility model provides a falling object prevention device, so that accidentally fallen accessories can fall along the protection plate 3 of the extension frame 4 into the protection plate 3 on the base frame 2, thereby shielding the accidentally fallen accessories and effectively preventing the accessories from falling onto the road surface, so that when the auxiliary structure on the main truss of the overpass is dismantled, there is no need to close the traffic, ensuring that the traffic is not affected.

[0033] In this embodiment, the fixing rod 1 is connected to the lower chord by a first bolt 51. The fixing rod 1 is provided with a fixing member 101, which is buckled on the lower chord, and the first bolt 51 is successively passed through the fixing rod 1 and the fixing member 101 and then fixed by a first nut 511.

[0034] The connecting frame 11 includes two connecting rods 111, one end of the connecting rods 111 is connected to each other through a connecting block 112, and the connecting block 112 is connected to the fixed rod 1 through a second bolt 52, and the ends of the two connecting rods 111 away from the connecting block 112 are open structures, and the ends of the connecting rods 111 away from the connecting block 112 are fixedly provided with a first connecting member 113, and the first connecting member 113 is fixedly connected to the base frame 2 through a third bolt 53. The second bolt 52 of this embodiment is provided with a second nut 521 used in conjunction with it, and the third bolt 53 is provided with a third nut 531 used in conjunction with it, so that the two ends of the connecting frame 11 can be fixedly connected to the fixed rod 1 and the base frame 2; the connecting frame 11 and the bottom plate 2 form a triangular stable structure, which can increase the force effect of the anti-falling device.

[0035] The second connecting members 41 are fixedly provided at both ends of the extension frame 4, and the second connecting member 41 is fixedly connected to the bottom frame 2 through the fourth bolt 54. The fourth bolt 54 of this embodiment is provided with a fourth nut 541 used in conjunction therewith, so that the extension frame 4 can be tiltedly arranged on both sides of the bottom plate 2.

[0036] The protection plate 3 is connected to the base frame 2 and the extension frame 4 via a fifth screw 55 , and the fifth screw 55 is provided with a fifth nut 551 used in conjunction therewith.

[0037] The fixing rod 1, the connecting frame 11, the bottom frame 2, the protection plate 3 and the extension frame 4 of this embodiment are all detachable structures, which can facilitate the storage and transportation of the anti-falling device, and the fixing rod 1, the connecting frame 11, the bottom frame 2, the protection plate 3 and the extension frame 4 are simple to install, thereby improving the efficiency of construction. In this embodiment, at least two bolts are provided for each installation between the fixing rod 1, the connecting frame 11, the bottom frame 2, the protection plate 3 and the extension frame 4, thereby improving the stability of the installation between them.

[0038] like Figure 3 As shown, the base frame 2 includes a frame body 21 , a connecting pipe 22 and a locking bolt 23 .

[0039] Two frames 21 are arranged opposite to each other. Two ends of the frames 21 are respectively penetrated with fixing holes. The two ends of the two frames 21 are respectively embedded in the two ends of the connecting pipe 22 to form a rectangular bottom frame 2.

[0040] The connecting tube 22 is evenly and alternately provided with a plurality of penetrating adjustment holes 221 . The locking bolts 23 are sequentially passed through the adjustment holes 221 and the fixing holes and fixed by locking nuts 231 , so that both ends of the frame 21 can be fixed in the connecting tube 22 .

[0041] The protective plate 3 has color steel tiles 31 on both sides, and an accordion-type telescopic plate 32 in the middle. The color steel tiles 31 are connected to the frame 21 and the extension frame 4 through the fifth screw 55, and the accordion-type telescopic plate 32 is connected to the connecting pipe 22 through the fifth screw 55.

[0042] According to the width of the overpass, the frame 21 is embedded in the connecting pipe 22, and the fixing hole is aligned with the adjustment hole 221 at the appropriate position. The frame 21 and the connecting pipe 22 can be fixedly connected by the locking bolt 23 and the locking nut 231. The accordion-type telescopic plate 32 can be extended and retracted as the width of the base frame 2 is adjusted to adapt to the width of the overpass, thereby increasing the adaptability of the base frame 2. There is no need to customize the base frame 2 of appropriate size for overpasses of different widths, effectively reducing the construction cost.

[0043] In this embodiment, the color steel tile 31 and the accordion-type telescopic plate 32 are connected by riveting. The combination of the color steel tile 31 and the accordion-type telescopic plate 32 is lightweight as a whole, thereby improving installation efficiency.

[0044] The falling object prevention device of this embodiment can be spliced ​​in multiple combinations according to needs. The length of the protection plate 3 is greater than the length of the base frame 2. By overlapping adjacent protection plates 3, multiple falling object prevention devices can be spliced.

[0045] like Figure 3As shown, a support rod 24 is fixedly arranged between the two connecting pipes 22, and the accordion-type telescopic plate 32 is connected to the support rod 24 by a fifth screw 55. Under the action of the support rod 24, the bearing capacity of the accordion-type telescopic plate 32 can be increased to avoid the collapse of the accordion-type telescopic plate 32.

[0046] The installation method of the anti-falling object device in this embodiment is:

[0047] According to the width of the overpass, adjust the distance between the two frames 21, embed the frame 21 into the connecting pipe 22, and align the fixing hole with the adjustment hole 221 at the appropriate position. The frame 21 and the connecting pipe 22 can be fixedly connected by the locking bolt 23 and the locking nut 231 so that the width of the base frame 2 is slightly larger than the width of the overpass; install the connecting frame 11 and the extension frame 4 on the base plate 2, and then install the protective plate 3 on the bottom surface of the base plate 2 to complete the installation of the base frame 2, the connecting frame 11, the protective plate 3 and the extension frame 4.

[0048] The fixing rod 1 is installed on the lower chords on both sides of the main truss, and the two connecting frames 11 are respectively installed on both sides of the fixing rod 1 to complete the installation of the anti-falling device. According to the length of the main truss, a suitable number of anti-falling devices are selected, and the protection plates 3 between each anti-falling device are overlapped with each other.

Claims

1. An aluminum alloy pedestrian bridge removal anti-falling object protection device, characterized in that: It comprises a fixing rod (1), a base frame (2) and a protection plate (3). The fixing rod (1) is fixedly arranged on the lower chord rods on both sides of the main truss, and connecting frames (11) are respectively arranged at both ends of the fixing rod (1), one end of the connecting frame (11) is connected to the fixing rod (1), and the other end is connected to both sides of the bottom frame (2); Extension frames (4) are respectively arranged on opposite sides of the base frame (2), the extension frame (4) and the connecting frame (11) are located on the same side, one end of the extension frame (4) is connected to the base frame (2), and the other end is inclined away from the main truss along the direction from the lower chord to the upper chord of the main truss; The protection plate (3) is located between the main truss and the base frame (2), and the protection plate (3) is laid on the base frame (2) and the extension frame (4).

2. The aluminum alloy pedestrian bridge removal anti-falling object protection device according to claim 1 is characterized by: The fixing rod (1) is connected to the lower chord rod via a first bolt (51); The connecting frame (11) comprises two connecting rods (111), one end of the connecting rods (111) are connected to each other via a connecting block (112), and the connecting block (112) is connected to the fixing rod (1) via a second bolt (52), one end of the two connecting rods (111) away from the connecting block (112) is an open structure, and a first connecting member (113) is fixedly provided at one end of the connecting rod (111) away from the connecting block (112), and the first connecting member (113) is fixedly connected to the base frame (2) via a third bolt (53); Second connecting members (41) are fixedly provided at both ends of the extension frame (4), and the second connecting member (41) is fixedly connected to the base frame (2) via a fourth bolt (54); The protection plate (3) is connected to the base frame (2) and the extension frame (4) via a fifth screw (55).

3. The device for removing falling objects from an aluminum alloy pedestrian bridge according to claim 2 is characterized in that: The base frame (2) comprises a frame body (21), a connecting pipe (22) and a locking bolt (23), wherein two frames (21) are arranged opposite to each other, and fixing holes are respectively provided at both ends of the frame body (21), and the two ends of the two frames (21) are respectively embedded in the two ends of the connecting pipe (22); The connecting tube (22) is evenly and alternately provided with a plurality of penetrating adjustment holes (221); the locking bolts (23) are sequentially passed through the adjustment holes (221) and the fixing holes and then fixed by locking nuts (231), so that both ends of the frame (21) can be fixed in the connecting tube (22).

4. The device for removing falling objects from an aluminum alloy pedestrian bridge according to claim 3 is characterized in that: The two sides of the protection plate (3) are colored steel tiles (31), the middle part of the protection plate (3) is an accordion-type telescopic plate (32), the colored steel tiles (31) are connected to the frame (21) and the extension frame (4) through the fifth screw (55), and the accordion-type telescopic plate (32) is connected to the connecting pipe (22) through the fifth screw (55).

5. The device for removing falling objects from an aluminum alloy pedestrian bridge according to claim 4 is characterized in that: A support rod (24) is fixedly arranged between the two connecting pipes (22), and the accordion-type telescopic plate (32) is connected to the support rod (24) via the fifth screw (55).

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