Safety protection device for bridge construction

Abstract

The safety protection device for bridge construction comprises a frame and a long cross rod, two opposite first round holes are formed in the inner side of the frame, a second protection net is connected into the two first round holes through bearings, first thin rods are fixedly connected to the two sides of the second protection net, the outer portions of the two first thin rods are connected with a first protection net through bearings, and the long cross rod is connected with a second protection net through bearings. Two symmetrical first installation grooves are formed in the first protection net, handles are fixedly connected into the first installation grooves, second thin rods are fixedly connected to the two sides of the first protection net, one second thin rod is connected with a connecting piece through a bearing, the other second thin rod is connected with a sliding block through a bearing, and a clamping groove is formed in the sliding block. A sliding groove is formed in one side of the frame, and the sliding block slides in the sliding groove. The safety protection device for bridge construction has the effects that materials can be received and the construction direction can be changed while a bridge construction ladder cage is provided with a protection net for protection.

Description

Technical Field

[0001] This utility model relates to the field of bridge construction, and in particular to a safety protection device for bridge construction. Background Technology

[0002] A bridge is a structure built to allow roads to cross natural or man-made obstacles. It is erected across rivers, lakes, and seas to enable vehicles and pedestrians to pass smoothly. A bridge generally consists of a superstructure, a substructure, and auxiliary structures. The superstructure mainly refers to the bridge span structure and the bearing system, while the substructure includes abutments, piers, and foundations. During the construction of a bridge, protective devices are usually installed at the edges of the bridge deck to prevent construction workers from falling.

[0003] Currently, during the construction of bridge lateral sections, if the safety ladders used are equipped with protective nets, the nets need to be dismantled when receiving materials or carrying out construction in different directions, which increases manpower consumption and time costs. If protective nets are not installed, it is impossible to block and protect against falling objects, which greatly reduces the protection of workers' personal safety during construction. Utility Model Content

[0004] This utility model discloses a safety protection device for bridge construction, which aims to solve the technical problem that while the bridge construction ladder cage is equipped with a protective net for protection, it is not convenient to receive materials or change the construction direction.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A safety protection device for bridge construction includes a frame and a long crossbar. Two opposing circular holes are formed on the inner side of the frame, and a protective net is connected to each hole via bearings. Thin rods are fixedly connected to both sides of the protective net, and the protective net is also connected to the outside of each thin rod via bearings. Two symmetrical mounting slots are formed on the protective net, and a handle is fixedly connected to each slot. Thin rods are fixedly connected to both sides of the protective net, with one thin rod connected to a connector via a bearing, and the other thin rod connected to a sliding block via a bearing. The sliding block has a slot. A sliding groove is formed on one side of the frame, and the sliding block slides within the sliding groove. Two circular holes are opened on one side of the frame, and sprockets 1 and 2 are rotatably connected in the two circular holes 2 through bearings. The same chain is slidably connected to the outside of sprockets 1 and 2. The two ends of the chain are fixedly connected to the two sides of the connector. A connecting rod is fixedly connected to one side of sprocket 2, and a safety net is fixedly connected to the inside of the connecting rod. A circular hole 3 is opened on one side of the frame, and a connecting rod is rotatably connected in the circular hole 3 through bearings. The end of the connecting rod away from the circular hole 3 is fixedly connected to one side of sprocket 2.

[0007] The system consists of a frame, two protective nets, a handle, a connector, a sliding block, a sliding groove, sprockets, chains, and connecting rods. During use, pulling the handle folds up both protective nets, causing the sliding block to slide within the sliding groove. Simultaneously, the connecting chain rotates sprockets, forcing the connecting rod fixed to sprocket 2 to rotate, thus raising the safety net. This improves work efficiency during material receiving or construction, reduces manpower consumption, enhances convenience, and ensures worker safety during construction.

[0008] In a preferred embodiment, a second mounting groove is provided on one side of the frame, and a pin is slidably connected in the second mounting groove. The same spring is fixedly connected to the side of the pin opposite to the inner wall of the second mounting groove. The spring is wrapped around the outside of the pin, and a pull ring is fixedly connected to one end of the pin.

[0009] With a pin, spring, and pull ring, the safety net is secured by a slot on a sliding block when closed. Pulling the pull ring compresses the spring, allowing the pin to slide and the safety net to open. This ensures that the safety net will not be opened due to worker contact, increasing the safety of the device.

[0010] In a preferred embodiment, two fasteners are fixedly connected to one side of each of the multiple long crossbars, and the fasteners on the same side are bolted to the frame. Mounting seats are fixedly connected to both ends of the multiple long crossbars. Short crossbars are fixedly connected to the opposite sides of two adjacent mounting seats. The same pedal is fixedly connected to the opposite sides of the two lower long crossbars, and the pedal is fixedly connected to an adjacent short crossbar. Support columns are bolted to the interior of the two corresponding upper and lower mounting seats, and bases are bolted to the exterior of the multiple lower mounting seats.

[0011] With long crossbars, short crossbars, mounting bases, pedals, support columns, and bases, the device can be set to the required height before use, improving convenience. The stable connection between the components ensures the overall stability of the device.

[0012] In a preferred embodiment, the bases are provided with the same steel plate base underneath, and the bases and the steel plate base are provided with four circular holes at equal intervals. Each of the two corresponding circular holes is connected to an adjusting bolt by a thread.

[0013] By incorporating a base, a steel plate base, and adjusting bolts, the device can be adjusted by loosening one corner of the adjusting bolt and placing a shim between the base and the steel plate base when the ground is uneven or a section of the foundation is soft and collapsed. This improves convenience and increases the overall stability and safety of the device.

[0014] As can be seen from the above, the safety protection device for bridge construction provided by this utility model has the technical effect of allowing the bridge construction ladder cage to be protected by a protective net while receiving materials and replacing construction equipment. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of a safety protection device for bridge construction proposed in this utility model.

[0016] Figure 2 This is a schematic diagram of the protective net structure of a safety protection device for bridge construction proposed in this utility model.

[0017] Figure 3 This is a schematic diagram of the chain structure of a safety protection device for bridge construction proposed in this utility model.

[0018] Figure 4 This is a schematic diagram of the sliding groove structure of a safety protection device for bridge construction proposed in this utility model.

[0019] Figure 5 This is a schematic diagram of the base structure of a safety protection device for bridge construction proposed in this utility model.

[0020] In the attached diagram: 1. Mounting base; 2. Short crossbar; 3. Long crossbar; 4. Frame; 5. Support column; 6. Base; 7. Steel plate base; 8. Fixing component; 9. Pedal; 10. Sprocket 1; 11. Connecting rod; 12. Safety net; 13. Protective net 1; 14. Protective net 2; 15. Sprocket 2; 16. Chain; 17. Connecting component; 18. Sliding block; 19. Spring; 20. Pull ring; 21. Pin; 22. Sliding groove; 23. Adjusting bolt; 24. Handle. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] The safety protection device for bridge construction disclosed in this utility model is mainly used in scenarios where bridge construction ladders are equipped with protective nets for protection, but it is not convenient to receive materials or carry out construction.

[0023] Reference Figures 1-5A safety protection device for bridge construction includes a frame 4 and a long horizontal bar 3. Two opposing circular holes 1 are formed on the inner side of the frame 4, and a second protective net 14 is connected to each of the two circular holes 1 via bearings. Thin rods 1 are fixedly connected to both sides of the second protective net 14, and a third protective net 13 is connected to the outside of each of the two thin rods 1 via bearings. Two symmetrical mounting slots 1 are formed on the first protective net 13, and handles 24 are fixedly connected to each of the mounting slots 1. Thin rods 2 are fixedly connected to both sides of the first protective net 13, with one thin rod 2 connected to a connector 17 via a bearing, and the other thin rod 2 connected to a sliding block 18 via a bearing. The sliding block 18 has a slot. A sliding groove 22 is formed on one side of the frame 4, and the sliding block 18 slides within the sliding groove 22. Two circular holes 2 are formed on one side of the frame 4, and bearings 2 are connected to each of the two circular holes 2. The system is connected by a sprocket 10 and a sprocket 2 15. Both sprockets 10 and sprocket 2 15 are slidably connected to the outside of the same chain 16. The two ends of the chain 16 are fixedly connected to the two sides of the connector 17. A connecting rod 11 is fixedly connected to one side of sprocket 2 15. A safety net 12 is fixedly connected to the inside of the connecting rod 11. A circular hole 3 is opened on one side of the frame 4. The connecting rod 11 is rotatably connected to the circular hole 3 through a bearing. The end of the connecting rod 11 away from the circular hole 3 is fixedly connected to one side of sprocket 2 15. During use, when the safety net 13 falls, it drives sprockets 10 and sprocket 2 15 to rotate through the chain 16 connected to the connector 17. This forces the connecting rod 11 fixed on sprocket 2 15 to rotate, causing the safety net 12 to rise. This improves work efficiency, reduces the manpower consumption of workers, enhances convenience, and increases safety.

[0024] Reference Figure 1 and Figure 4 In a preferred embodiment, a mounting groove 2 is provided on one side of the frame 4, and a pin 21 is slidably connected in the mounting groove 2. The same spring 19 is fixedly connected to the side of the pin 21 opposite to the inner wall of the mounting groove 2. The spring 19 surrounds the outside of the pin 21. A pull ring 20 is fixedly connected to one end of the pin 21. During use, the pin 21 locks the groove on the sliding block 18 so that the protective net 13 cannot be opened, ensuring that it will not be opened due to accidental contact by the worker, thus ensuring the safety of the worker during construction.

[0025] Reference Figure 1 and Figure 5In a preferred embodiment, two fasteners 8 are fixedly connected to one side of each of the multiple long crossbars 3. The multiple fasteners 8 on the same side are all bolted to the frame 4. Mounting seats 1 are fixedly connected to both ends of the multiple long crossbars 3. Short crossbars 2 are fixedly connected to the opposite side of each of the two adjacent mounting seats 1. The same pedal 9 is fixedly connected to the opposite side of the two lower long crossbars 3, and the pedal 9 is fixedly connected to an adjacent short crossbar 2. Support columns 5 are bolted to the interior of the two corresponding upper and lower mounting seats 1, and bases 6 are bolted to the exterior of the multiple lower mounting seats 1. The same steel plate base 7 is provided below the multiple bases 6. Circular holes four are equally spaced on the bases 6 and the steel plate base 7. Adjusting bolts 23 are threaded into the two corresponding upper and lower circular holes four. During use, by unscrewing one corner of the adjusting bolt 23, a shim is added between the base 6 and the steel plate base 7, so that the device can adapt to the ground conditions, improving convenience and increasing the overall stability and safety of the device.

[0026] Working principle: When the device is installed, if the ground is uneven or slightly collapsed, the overall angle of the device can be adjusted by unscrewing the adjusting bolt 23 at one corner and placing a shim between the base 6 and the steel plate base 7. When the worker needs to change direction for construction or to receive materials, the pull ring 20 is pulled outward, causing the pin 21 to compress the spring 19 and slide outward, so that the sliding block 18 can be driven by the first protective net 13 to slide downward in the sliding groove 22. Pulling the handle 24 causes the first protective net 13 and the second protective net 14 to fold down. At the same time, the connecting chain 16 connected by the connector 17 drives the first sprocket 10 and the second sprocket 15 to rotate, forcing the connecting rod 11 fixed on the second sprocket 15 to rotate, raising the safety net 12 to block falling objects.

[0027] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. The substitutions may be replacements of some structures, devices, or method steps, or they may be complete technical solutions. Equivalent substitutions or modifications made based on the technical solution and inventive concept of this utility model should all be covered within the protection scope of this utility model.

Claims

1. A safety protection device for bridge construction, comprising a frame (4) and a long cross bar (3), characterized in that: The frame (4) has two opposite circular holes 1 on its inner side, and a protective net 2 (14) is connected to the two circular holes 1 via bearings. Thin rods 1 are fixedly connected to both sides of the protective net 2 (14). The two thin rods 1 are externally connected to the protective net 1 (13) via bearings. The protective net 1 (13) has two symmetrical installation grooves 1, and a handle (24) is fixedly connected to the installation grooves 1. Thin rods 2 are fixedly connected to both sides of the protective net 1 (13), and one of the thin rods 2 is connected to a connecting piece (17) via a bearing, and the other thin rod 2 is connected to a sliding block (18) via a bearing. A slot is provided on the sliding block (18). A sliding groove (22) is provided on one side of the frame (4), and the sliding block (18) slides in the sliding groove (22).

2. A safety protection device for bridge construction according to claim 1, characterized in that: Two circular holes (2) are provided on one side of the frame (4), and sprocket wheel (10) and sprocket wheel (15) are rotatably connected in the two circular holes (2) through bearings respectively. The outsides of sprocket wheel (10) and sprocket wheel (15) are both slidably connected with the same chain (16), and the two ends of the chain (16) are fixedly connected to the two sides of the connecting piece (17). A connecting rod (11) is fixedly connected to one side of the sprocket wheel (15), and a safety net (12) is fixedly connected to the inner side of the connecting rod (11). A circular hole (3) is provided on one side of the frame (4), and a connecting rod (11) is rotatably connected in the circular hole (3) through bearings. The end of the connecting rod (11) away from the circular hole (3) is fixedly connected to one side of the sprocket wheel (15).

3. A safety protection device for bridge construction according to claim 2, characterized in that: A second installation groove is provided on one side of the frame (4), and a latch (21) is slidably connected in the second installation groove. A spring (19) is fixedly connected to the side of the latch (21) opposite to the inner wall of the second installation groove. The spring (19) surrounds the outside of the latch (21), and a pull ring (20) is fixedly connected to one end of the latch (21).

4. A safety protection device for bridge construction according to claim 1, characterized in that: One side of the plurality of long cross bars (3) is fixedly connected to two fixing members (8), wherein the plurality of fixing members (8) located on the same side are connected to the frame (4) by bolts, both ends of the plurality of long cross bars (3) are fixedly connected to mounting seats (1), and the opposite sides of two adjacent mounting seats (1) are fixedly connected to short cross bars (2).

5. A safety protection device for bridge construction according to claim 4, characterized in that: The same pedal (9) is fixedly connected to the opposite side of the two long cross bars (3) located at the bottom, and the pedal (9) is fixedly connected to an adjacent short cross bar (2).

6. A safety protection device for bridge construction according to claim 4, characterized in that: The interiors of the two corresponding upper and lower mounting seats (1) are connected to support columns (5) via bolts, and the exteriors of the multiple mounting seats (1) located below are connected to bases (6) via bolts.

7. A safety protection device for bridge construction according to claim 6, characterized in that: A common steel plate base (7) is arranged below the plurality of bases (6), and four circular holes are evenly spaced on the base (6) and the steel plate base (7), and adjusting bolts (23) are threadedly connected to the two corresponding circular holes four above and below.

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