Overhanging unloading platform horizontal protection device

Abstract

The application relates to a horizontal protection device for a cantilever type unloading platform, which comprises a protection main frame and a horizontal protection net, the protection main frame comprises three frame rods and a plurality of connecting rods, the three frame rods are arranged in a head-to-tail mode to form a U-shaped structure, and correspond to three edges of the unloading platform in suspension, the connecting rods are uniformly distributed along the length direction of the frame rods, one end of the connecting rod is arranged on the frame rod, the other end of the connecting rod is arranged on the unloading platform, the connecting rod and the frame rod form a space for accommodating the horizontal protection net, and the horizontal protection net is bound to the connecting rod and the frame rod. The application has the effect of protecting the external corner area of the unloading platform, thereby eliminating the safety hidden danger of material falling in the external corner area.

Description

Technical Field

[0001] This application relates to the field of unloading platform protection technology, and in particular to a horizontal protection device for a cantilevered unloading platform. Background Technology

[0002] Unloading platforms are temporary workbenches and frames commonly erected on construction sites. They are categorized into mobile unloading platforms, ground-mounted unloading platforms, and cantilevered unloading platforms. Among them, cantilevered unloading platforms are temporary construction facilities that adopt a cantilevered structure design and are fixed by inclined steel wire ropes. They have the characteristics of strong load-bearing capacity, flexible turnover, and high safety, and are mainly used for material turnover in high-rise building construction.

[0003] Currently, Chinese utility model patent CN215830048U discloses a material unloading platform equipped with a folding safety net. It includes two main cantilever beams, which are parallel and anchored to the floor slab below. The outer ends of the main cantilever beams extend beyond the floor slab, and a platform body is installed on top of them. A main protective net is installed at the front and on both sides of the platform body. One end of the main protective net is rotatably connected to the corresponding main cantilever beam. A chain connects the end of the main protective net furthest from the main cantilever beam to the upper end of the platform body. The angle between the main protective net and the material platform is adjustable. A box for holding the free section of the chain is provided on the inner wall of the platform body. A safety door is provided at the rear of the platform body. This utility model facilitates the adjustment of the angle between the safety net and the protective plate.

[0004] The unloading platform is an important facility for material transfer, but the corner area of ​​the unloading platform has a blind spot with insufficient protection, posing a safety hazard. Utility Model Content

[0005] In order to protect the external corner area of ​​the unloading platform and eliminate the safety hazard of material falling from the external corner area, this application provides a horizontal protection device for a cantilevered unloading platform.

[0006] This application provides a horizontal protection device for a cantilevered unloading platform, which adopts the following technical solution:

[0007] A horizontal protection device for a cantilevered unloading platform includes a main protective frame and a horizontal protective net. The main protective frame includes three frame rods and several connecting rods. The three frame rods are connected end to end to form a "U" shape, corresponding to the three suspended sides of the unloading platform. The several connecting rods are evenly distributed along the length of the frame rods. One end of each connecting rod is attached to a frame rod, and the other end is attached to the unloading platform. The connecting rods and the frame rods form a space for accommodating the horizontal protective net, which is then tied to the connecting rods and the frame rods.

[0008] By adopting the above technical solution, the frame rods form a U-shape, so that the three sides of the frame rods correspond to the three sides of the unloading platform that are suspended. The area enclosed by the frame rods includes the external corner area of ​​the unloading platform. The frame rods are connected to the unloading platform through connecting rods, which improves the reliability of the frame rods. The horizontal protective net is tied to the connecting rods and the frame rods, so that the horizontal protective net can cover the external corner area of ​​the unloading platform. The horizontal protective net can reduce the amount of material falling from the external corner area and eliminate safety hazards.

[0009] Optionally, the connecting rod is provided with a connector, which includes a fixed wing plate, a fastening bolt, and a first fastening nut. An I-beam for connecting the connector is provided on the unloading platform. The fixed wing plate is provided on the end of the connecting rod facing the unloading platform. The tail of the fastening bolt passes through the fixed wing plate and the web of the I-beam. The first fastening nut is threadedly connected to the fastening bolt, so that the fixed wing plate remains in contact with the I-beam.

[0010] By adopting the above technical solution, the connecting rod realizes the detachable connection between the protective main frame and the unloading platform, enabling the protective main frame to be used multiple times. When the workers need to install the protective device on the unloading platform, they can first abut the fixed wing plate against the web of the I-beam of the unloading platform, and then install the connecting rod and the unloading platform by cooperating with the fastening bolts and the first fastening nut.

[0011] Optionally, the connector further includes two spring washers and a second fastening nut. The two spring washers are located on the side of the I-beam away from the fixed wing plate and the side of the fixed wing plate away from the I-beam, respectively. The second fastening nut is threaded to the fastening bolt and abuts against the first fastening nut.

[0012] By adopting the above technical solution, since the horizontal protective net catches the falling material, the connecting rod tied to the horizontal protective net will be subjected to the gravity and impact force of the material due to the speed of the falling material. However, when the material is completely caught by the horizontal protective net, the connecting rod is only affected by the gravity of the material. Therefore, the force on the connecting rod will change. The elastic gasket plays a role in buffering, shock absorption and protection. The second fastening nut can reduce the rotation of the first fastening nut, thus improving the reliability of the connecting rod connection to the I-beam.

[0013] Optionally, the frame rod is provided with an installation component for connecting with adjacent frame rods. The installation component includes an abutment piece, an abutment block, an installation bolt, and an installation nut. The abutment block is located at the end of the frame rod. Adjacent frame rods have abutment grooves for engaging the abutment blocks. The abutment piece is located on the side wall of the frame rod. The abutment pieces of adjacent frame rods abut against each other. The installation bolt passes through two abutment pieces, and the installation nut is threaded onto the installation bolt.

[0014] By adopting the above technical solution, when the protective device needs to be transferred or its usage site changed, the frame rods disassembled from the unloading platform need to be transported. Since the three U-shaped frame rods occupy a large area, the three frame rods can be removed first to facilitate the transfer operation. The workers first loosen the mounting bolts and mounting nuts so that the abutment pieces and frame rods can be separated, and the abutment blocks can be disengaged from the abutment grooves. When the frame rods are moved to the position to be installed, the workers then engage the abutment blocks in the abutment grooves, so that the abutment pieces abut against each other, and install and fix them by mounting bolts and mounting nuts.

[0015] Optionally, the frame rod includes a plurality of first frame rods, a plurality of second frame rods, and a plurality of limiting members. The first frame rods and the second frame rods are arranged alternately. The connecting rod is disposed on the second frame rod. The first frame rods are rotatably connected to the first frame rods along a length direction perpendicular to the first frame rods. The limiting members are used to restrict the rotation of the first frame rods.

[0016] By adopting the above technical solution, after the frame rods are disassembled, the workers can rotate the first frame rod to reassemble the frame rods, further reducing the floor space occupied by the frame rods and connecting rods, improving the utilization rate of storage space and the convenience of transportation. When the frame rods need to be installed, the rotation of the first frame rod is restricted by the limiting component, thereby improving the strength of the connection between the first frame rod and the second frame rod.

[0017] Optionally, the limiting component includes two rotating bars and a limiting rod. The length direction of the limiting rod is perpendicular to the rotation direction of the first frame rod. The two rotating bars are distributed along the length direction of the limiting rod and are disposed on the limiting rod. When it is necessary to limit the rotation of the first frame rod, the two rotating bars abut against the opposite side walls of the first frame rod.

[0018] By adopting the above technical solution, when it is necessary to rotate the first frame rod and the second frame rod relative to each other to achieve the retraction of the frame rod, the worker rotates the limiting rod to make the rotating bar disengage from the second frame rod, so that the second frame rod can rotate smoothly relative to the first frame rod to achieve the retraction state of the frame rod. When it is necessary for the frame rod to be in the extended state, the first frame rod is made parallel to the second frame rod. At this time, the limiting rod is rotated again so that the rotating bar is lower than the opposite side walls of the first frame rod, and the rotating bar restricts the rotation of the first frame rod.

[0019] Optionally, the limiting member further includes two locking posts, which are distributed along the length of the rotating bar. The locking posts are disposed on the rotating bar, and the first frame rod has a locking groove for accommodating the locking posts.

[0020] By adopting the above technical solution, a locking post is provided on the rotating bar. When the first frame rod and the second frame rod are parallel, the locking post can be located in the locking groove, ensuring that the frame rod is in a straight state. When the protective device catches falling objects, the frame rod will vibrate. Through the locking post and the locking groove, the rotation of the rotating bar is reduced.

[0021] Optionally, the limiting rod is provided with a toggle block that facilitates rotation by the operator.

[0022] By adopting the above technical solution, the toggle block makes it easier for staff to rotate the limiting lever.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. The three frame rods form a "U" shape. The frame rods are connected to the unloading platform through connecting rods. The horizontal protective net is located between the frame rods and the unloading platform, so that the horizontal protective net covers the external corner area of ​​the unloading platform, reducing the risk of materials falling from the external corner area;

[0025] 2. A connector is used to connect the unloading platform and the connecting rod, enabling the protective device to be detachable;

[0026] 3. The mounting and restraining components enable the folding and disassembly of the frame rods, improving the convenience of transporting and folding the Fanhu device. Attached Figure Description

[0027] Figure 1 This is a structural schematic diagram of a cantilevered unloading platform.

[0028] Figure 2 yes Figure 1 A schematic diagram of the main protective frame.

[0029] Figure 3 yes Figure 2 Exploded view of the connecting component.

[0030] Figure 4 This is a schematic diagram of the structure of Example 2.

[0031] Figure 5 yes Figure 4 A schematic diagram of the structure of the mounting component.

[0032] Figure 6 yes Figure 4 A schematic diagram of the middle frame rod.

[0033] Figure 7 yes Figure 6 Exploded view of the middle limiting component.

[0034] Reference numerals: 1. Main protective frame; 11. Frame rod; 12. Connecting rod; 2. Horizontal protective net; 3. Connecting component; 31. Fixed wing plate; 32. Fastening bolt; 33. First fastening nut; 34. Spring washer; 35. Second fastening nut; 4. Mounting component; 41. Abutment piece; 42. Abutment block; 43. Mounting bolt; 44. Mounting nut; 45. Abutment groove; 5. First frame rod; 51. Second frame rod; 52. Limiting component; 521. Rotating bar; 522. Limiting rod; 523. Snap-fit ​​post; 524. Actuating block; 525. Snap-fit ​​groove; 6. Unloading platform; 61. I-beam. Detailed Implementation

[0035] The following is in conjunction with the appendix Figure 1 - Appendix Figure 7 This application will be described in further detail.

[0036] This application discloses a horizontal protection device for a cantilevered unloading platform.

[0037] Example 1

[0038] Reference Figure 1 and Figure 2 A horizontal protective device for a cantilevered unloading platform includes a main protective frame 1 and a horizontal protective net 2. The main protective frame 1 includes three frame rods 11 and several connecting rods 12. The welded rods and connecting rods are all 50mm*50mm square steel. The three frame rods 11 are in the same plane, connected end to end and perpendicular to each other, forming a "U" shape. The three frame rods 11 are corresponding to and parallel to the three suspended sides of the unloading platform 6. The several connecting rods 12 are evenly distributed along the length of the frame rods 11. The connecting rods 12 are set horizontally and perpendicular to the corresponding frame rods 11. One end of the connecting rod 12 is welded to the frame rod 11, and the other end of the connecting rod 12 is provided with a connector 3. The connector 3 is used to fix the connecting rod 12 to the unloading platform 6. The connecting rods 12, the unloading platform 6, and the frame rods 11 form a space for the horizontal protective net 2 to be accommodated. The horizontal protective net 2 is tied to the connecting rods 12 and the frame rods 11.

[0039] Reference Figure 2 and Figure 3The lower end face of the unloading platform 6 is fixedly provided with an I-beam 61 for cooperating with the connecting member 3. The connecting member 3 includes a fixed wing plate 31, a fastening bolt 32, a first fastening nut 33, two spring washers 34, and a second fastening nut 35. The fixed wing plate 31 is perpendicular to the end of the connecting rod 12 away from the frame rod 11 and abuts against the web of the I-beam 61. The two spring washers 34 are respectively located on the side wall of the fixed wing plate 31 away from the I-beam 61 and the side wall of the I-beam 61 away from the fixed wing plate 31. The length direction of the fastening bolt 32 is parallel to the connecting rod 12. Along the length of the connecting rod 12, the tail of the fastening bolt 32 passes through the spring washer 34, the fixed wing plate 31, the I-beam 61, and the spring washer 34 in sequence. The head of the fastening bolt 32 abuts against the spring washer 34 located on the side wall of the fixed wing plate 31 away from the I-beam 61. The first fastening nut 33 is threadedly connected to the tail of the fastening bolt 32 and abuts against the spring washer 34 on the side wall of the I-beam 61 away from the fixed wing plate 31. The second fastening nut 35 is threadedly connected to the fastening bolt 32 and abuts against the first fastening nut 33.

[0040] The principle of Example 1 is as follows: the protective device and the unloading platform 6 are detachably connected through the connector 3, and the protective device can be replaced. Since the frame rod 11 is "U" shaped and the three sides of the frame rod 11 and the unloading platform 6 are corresponding and parallel, the horizontal protective net 2 is located between the frame rod 11 and the unloading platform 6. The horizontal protective net 2 covers the external corner area of ​​the unloading platform 6, thereby reducing the blind spot problem in the external corner area and solving the safety hazard problem of material falling in the external corner area.

[0041] Example 2

[0042] The difference between this embodiment and Embodiment 1 is that: (Refer to...) Figure 4 and Figure 5 A mounting component 4 is provided on the frame rod 11. The mounting component 4 includes an abutment piece 41, an abutment block 42, a mounting bolt 43, and a mounting nut 44. The end face of the frame rod 11 is inclined, and the angle between the end face of the frame rod 11 and the length direction of the frame rod 11 is 45°. The abutment piece 41 is fixedly set on the side wall of the frame rod 11 and is parallel to the end face of the frame rod 11. The abutment block 42 is fixedly set on the end face of the frame rod 11, and an abutment groove 45 is opened on the end face of the frame rod 11. The abutment groove 45 is used to engage with the abutment block 42. The length direction of the mounting bolt 43 is parallel to the thickness direction of the abutment piece 41. The tail of the mounting bolt 43 passes through the abutment pieces 41 of two adjacent frame rods 11. The mounting nut 44 is threadedly connected to the mounting bolt 43. Both the mounting nut 44 and the mounting bolt 43 abut against the abutment piece 41.

[0043] refer to Figure 6 and Figure 7The frame rod 11 includes several first frame rods 5, several second frame rods 51, and several limiting members 52. The several second frame rods 51 correspond to several connecting rods 12. The first frame rods 5 and second frame rods 51 are arranged alternately. The first frame rods 5 are rotatably connected to the second frame rods 51. The rotation axis of the first frame rods 5 is perpendicular to the length direction of the second frame rods 51. The several limiting members 52 correspond to the several second frame rods 51. The limiting members 52 include two rotating bars 521, a limiting rod 522, two locking pins 523, and a toggle block 524. The limiting rod 522 is vertically arranged and passes through... The second frame rod 51 is inserted, and two rotating bars 521 are distributed along the length of the limiting rod 522. The rotating bars 521 are located on both sides of the second frame rod 51 in the vertical direction. The rotating bars 521 are used to abut against the opposite side walls of the first frame rod 5. Two locking posts 523 are distributed along the length of the rotating bars 521. The locking posts 523 are fixedly installed on the rotating bars 521. A locking groove 525 is opened on the side wall of the first frame rod 5. The locking groove 525 extends along the rotation axis of the first frame rod 5. The locking groove 525 is used to accommodate the locking posts 523. The actuating block 524 is fixedly installed on the upper end surface of the limiting rod 522.

[0044] The principle of Example 2 is as follows: After the protective device is removed from the unloading platform 6, the three frame rods 11 can be separated by the mounting part 4. Then, by rotating the toggle block 524, the rotating bar 521 is disengaged from the first frame rod 5, and the workers can rotate the first frame rod 5 so that the frame rod 11 can be folded and retracted, further reducing the floor space and improving the space utilization rate.

[0045] 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 horizontal protection device for a cantilevered unloading platform, characterized in that: It includes a main protection frame (1) and a horizontal protection net (2). The main protection frame (1) includes three frame bars (11) and several connecting bars (12). The three frame bars (11) are arranged end to end to form a "U" shape, corresponding to the three suspended sides of the unloading platform (6). The several connecting bars (12) are evenly distributed along the length direction of the frame bars (11). One end of the connecting bar (12) is arranged on the frame bar (11), and the other end of the connecting bar (12) is arranged on the unloading platform (6). The connecting bar (12) and the frame bar (11) form a space for accommodating the horizontal protection net (2), and the horizontal protection net (2) is tied to the connecting bar (12) and the frame bar (11).

2. The horizontal protection device for a cantilevered unloading platform according to claim 1, characterized in that: A connecting piece (3) is arranged on the connecting bar (12). The connecting piece (3) includes a fixed wing plate (31), a fastening bolt (32) and a first fastening nut (33). An I-beam (61) for connecting the connecting piece (3) is arranged on the unloading platform (6). The fixed wing plate (31) is arranged at one end of the connecting bar (12) facing the unloading platform (6). The tail of the fastening bolt (32) passes through the web of the fixed wing plate (31) and the I-beam (61). The first fastening nut (33) is threadedly connected to the fastening bolt (32) to keep the fixed wing plate (31) in abutment with the I-beam (61).

3. The horizontal protection device for a cantilevered unloading platform according to claim 2, characterized in that: The connecting piece (3) further includes two spring washers (34) and a second fastening nut (35). The two spring washers (34) are respectively located on one side of the I-beam (61)背离固定翼板(31)的一侧以及固定翼板(31)背离工字钢(61)的一侧,所述第二紧固螺母(35)螺纹连接于紧固螺栓(32),第二紧固螺母(35)抵紧于所述第一紧固螺母(33)。 4. A horizontal protection device for a cantilevered unloading platform according to claim 1, 2, or 3, characterized in that: An installation piece (4) for connecting with an adjacent frame bar (11) is arranged on the frame bar (11). The installation piece (4) includes an abutting piece (41), an abutting block (42), an installation bolt (43) and an installation nut (44). The abutting block (42) is arranged at the end of the frame bar (11). An abutting groove (45) for clamping the abutting block (42) is formed in the adjacent frame bar (11). The abutting piece (41) is arranged on the side wall of the frame bar (11). The abutting pieces (41) of the adjacent frame bars (11) are abutted against each other. The installation bolt (43) passes through the two abutting pieces (41), and the installation nut (44) is threadedly connected to the installation bolt (43). It should be noted that in the original text of , there is an unclear expression "背离固定翼板(31)的一侧以及固定翼板(31)背离工字钢(61)的一侧" which may need to be further clarified in the original Chinese text for a more accurate translation. The translation here is based on the general understanding of the context.

5. A horizontal protection device for a cantilevered unloading platform according to claim 4, characterized in that: The frame rod (11) includes a plurality of first frame rods (5), a plurality of second frame rods (51) and a plurality of limiting members (52). The first frame rods (5) and the second frame rods (51) are arranged alternately. The connecting rod (12) is disposed on the second frame rod (51). The first frame rods (5) are rotatably connected to the first frame rods (5) along a length direction perpendicular to the first frame rods (5). The limiting members (52) are used to limit the rotation of the first frame rods (5).

6. A horizontal protection device for a cantilevered unloading platform according to claim 5, characterized in that: The limiting member (52) includes two rotating bars (521) and a limiting rod (522). The length direction of the limiting rod (522) is perpendicular to the rotation direction of the first frame rod (5). The two rotating bars (521) are distributed along the length direction of the limiting rod (522). The rotating bars (521) are set on the limiting rod (522). When it is necessary to limit the rotation of the first frame rod (5), the two rotating bars (521) are respectively abutting against the opposite side walls of the first frame rod (5).

7. A horizontal protection device for a cantilevered unloading platform according to claim 6, characterized in that: The limiting member (52) also includes two locking posts (523), which are distributed along the length of the rotating bar (521). The locking posts (523) are disposed on the rotating bar (521). The first frame rod (5) is provided with a locking groove (525) for accommodating the locking posts (523).

8. A horizontal protection device for a cantilevered unloading platform according to claim 6, characterized in that: The limiting rod (522) is provided with a toggle block (524) that facilitates rotation by the operator.

Images