Personnel protection cage for lashing bridge

Abstract

The invention provides a personnel protection cage for a lashing bridge, the lashing bridge is provided with a width direction and a length direction, at least one side of the lashing bridge in the width direction can be provided with a container to be hoisted, the top of the lashing bridge is respectively provided with handrails on two opposite sides of the lashing bridge in the width direction, and the handrails are arranged on the two opposite sides of the lashing bridge in the width direction. The handrail is arranged in the length direction of the lashing bridge, the personnel protection cage comprises vertical rods, the vertical rods are vertically installed on the top of the lashing bridge, and the two opposite sides of the lashing bridge in the width direction are each provided with one vertical rod. According to the personnel protection cage for the lashing bridge, on one hand, the protection function is expanded, and on the basis that the original function of preventing personnel from falling off of a handrail of the lashing bridge is reserved, the personnel protection cage composed of the vertical rods, the guide rods and the horizontal rods is additionally arranged outside the handrail, so that container impact caused by small-amplitude shaking is prevented; the overall safety of operators on the binding bridge is improved, and meanwhile, the handrail on the binding bridge is prevented from being damaged.

Description

Technical Field

[0001] The invention relates to the technical field of lashing bridges, and in particular to a personnel protection cage for a lashing bridge that can be used for lashing operations on a container ship. Background Art

[0002] As a conventional structure used for lashing operations on container ships, the lashing bridge provides a necessary operating platform for operators. At present, railings and handrails are generally installed on the lashing bridge of container ships, and their main function is to prevent people from falling from heights.

[0003] However, in actual operation scenarios, the above existing protection methods have the following defects:

[0004] The existing guardrails of the lashing bridge are of limited height, and their protection focuses mainly on preventing people from falling. However, when lifting containers, such as using a crane on a ship, the containers will be affected by factors such as wind loads and produce a small amount of deflection and shaking. In this case, the existing protective facilities have no ability to resist the impact that may be caused to the people on the lashing bridge. In addition, the overall strength of the railings, columns and other structures on the lashing bridge is limited. Once hit by a container, they are easily damaged and cannot provide reliable protection for the people behind them, thereby exposing the people to potential dangers.

[0005] Therefore, in order to solve the above problems, the present invention proposes a personnel protection cage for a lashing bridge. Summary of the invention

[0006] In order to solve the problems that the existing lashing bridges rely only on railings for protection, are unable to resist the risk of container deviation and collision, and the overall impact resistance of the railings is insufficient, the present invention provides a personnel protection cage for a lashing bridge.

[0007] According to one object of the present invention, the present invention provides a personnel protection cage for a lashing bridge, wherein the lashing bridge is provided with a width direction and a length direction, and a container to be hoisted can be provided on at least one side in the width direction of the lashing bridge, and railings are provided on the top of the lashing bridge on two opposite sides in the width direction of the lashing bridge, respectively, and the railings are provided along the length direction of the lashing bridge, and the personnel protection cage comprises:

[0008] An upright pole, the upright pole is vertically installed on the top of the lashing bridge, one upright pole is respectively arranged on two opposite sides in the width direction of the lashing bridge, the opposite side of the upright pole in the width direction of the lashing bridge is the container impact side, and the container impact side is located on the opposite side of the railing in the width direction of the lashing bridge;

[0009] A guide rod, wherein the top of the upright rod is connected to the guide rod extending upward, the side of the guide rod opposite to the width direction of the lashing bridge is a container guide side, and the upper side of the container guide side is inclined in a manner close to the center of the width direction of the lashing bridge;

[0010] A horizontal rod, in the width direction of the lashing bridge, the upright rods and the guide rods are supported and connected by the horizontal rod;

[0011] There are multiple personnel protection cages, which are arranged in sequence along the length direction of the lashing bridge. In the width direction of the lashing bridge, the distance between adjacent personnel protection cages is smaller than the size of the container.

[0012] Preferably, the upright rods are located on opposite sides of the tying bridge in the width direction and are tightly welded to the outermost sides of the top of the tying bridge in the width direction.

[0013] Preferably, the upright rod, the guide rod and the horizontal rod are all made of square steel tube profiles with a cross-sectional side length of 150×150 mm and a wall thickness of 10 mm.

[0014] Preferably, the inclination angle of the guide side of the container is set to 45 degrees.

[0015] Preferably, the guide side of the container is arranged in an arc shape, wherein the center of the guide side of the container in the vertical direction extends toward the outer side in the width direction of the lashing bridge.

[0016] Preferably, the guide side of the container and the impact side of the container are continuous in the vertical direction, and the connecting portion between the guide side of the container and the impact side of the container in the vertical direction is a smooth transition.

[0017] Preferably, the tops of the guide rods opposite to each other in the width direction of the tying bridge are respectively fixedly connected to one end of the horizontal rod in the length direction.

[0018] Preferably, in the width direction of the lashing bridge, the spacing between adjacent personnel protection cages is set to 0.8 times the length of the container.

[0019] Preferably, the distance between the lower end surface of the horizontal rod and the top surface of the tying bridge is not less than twice the height of the railing, the height of the railing is 1 meter to 1.1 meters, and the distance between the opposite sides of the upright rods in the width direction of the tying bridge is not less than the distance between the opposite sides of the railing in the width direction of the tying bridge.

[0020] Preferably, columns are supported and connected between the railing and the upper end surface of the tying bridge, and the columns and the personnel protection cage are alternately and evenly arranged in the length direction of the tying bridge, wherein the personnel protection cage is supported and connected between the upright rod and the railing on at least one side in the width direction of the tying bridge.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] The personnel protection cage for the lashing bridge has expanded the protection function. On the basis of retaining the original function of the lashing bridge railing to prevent people from falling, a personnel protection cage composed of vertical rods, guide rods and horizontal rods is added outside the railing to prevent the impact of small shaking containers, thereby improving the overall safety of workers on the lashing bridge and avoiding damage to the railings on the lashing bridge.

[0023] In addition, the inclined guide side of the container can change the direction of movement of the container when the container descends and sways and deviates from the normal path, causing it to slide into the cargo hold, avoiding falling into the range of the lashing bridge and causing top pressure injuries to personnel.

[0024] The present invention is further described below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is an overall schematic diagram of a personnel protection cage for a lashing bridge according to the present invention;

[0026] Figure 2 This is a schematic diagram from one viewing angle of a protection cage for personnel used in a lashing bridge as described in the present invention. DETAILED DESCRIPTION

[0027] The following description is used to fully explain the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art can think of other obvious variations. The basic principles of the present invention defined in the following description can be applied to other embodiments, variations, improvements, equivalents, and other technical solutions that do not deviate from the spirit and scope of the present invention.

[0028] See also Figure 1-2 The present invention provides a technical solution: a personnel protection cage for a lashing bridge, wherein the lashing bridge 100 is provided with a width direction a and a length direction b, and a container to be hoisted can be provided on at least one side of the width direction a of the lashing bridge 100, and railings 200 are provided on the top of the lashing bridge 100 on opposite sides of the width direction a of the lashing bridge 100, respectively, and the railings 200 are provided along the length direction b of the lashing bridge 100, and the personnel protection cage 300 includes:

[0029] A vertical rod 301, the vertical rod 301 is vertically installed on the top of the lashing bridge 100, and one vertical rod 301 is respectively provided on two opposite sides of the lashing bridge 100 in the width direction a, and the opposite side of the vertical rod 301 in the width direction a of the lashing bridge 100 is a container impact side 3011, and the container impact side 3011 is located on the opposite side of the railing 200 in the width direction a of the lashing bridge 100;

[0030] A guide rod 302, the top of the upright rod 301 is connected with the guide rod 302 extending upward, the side of the guide rod 302 opposite to the width direction a of the lashing bridge 100 is a container guide side 3021, and the upper side of the container guide side 3021 is inclined in a manner close to the center of the width direction a of the lashing bridge 100;

[0031] Horizontal rods 303, in the width direction a of the lashing bridge 100, the vertical rods 301 and the guide rods 302 are supported and connected by the horizontal rods 303;

[0032] There are multiple personnel protection cages 300 , which are arranged in sequence along the length direction b of the lashing bridge 100 . In the width direction a of the lashing bridge 100 , the distance between adjacent personnel protection cages 300 is smaller than the size of the container.

[0033] The personnel protection cage for the lashing bridge realizes the expansion of the protection function. On the basis of retaining the function of the original lashing bridge 100 railing 200 to prevent personnel from falling, a personnel protection cage composed of a vertical rod 301, a guide rod 302 and a horizontal rod 303 is added outside the railing 200 to prevent the impact of a small shaking container, thereby improving the overall safety of the personnel working on the lashing bridge 100 and avoiding damage to the railing 200 on the lashing bridge 100.

[0034] In addition, the inclined container guide side 3021 can change the movement direction of the container when the container descends and sways and deviates from the normal path, causing it to slide into the cargo hold to avoid falling into the range of the lashing bridge 100 and causing top pressure injuries to personnel.

[0035] In this embodiment, the upright pole 301 is located at a key position of the protective cage structure. The upright pole 301 is located on the opposite side of the lashing bridge 100 in the width direction a and is tightly welded to the outermost side of the top of the lashing bridge 100 in the width direction a. The welding connection between the upright pole 301 and the end face of the lashing bridge 100 ensures the stability of the protective cage in the front and rear directions, providing a solid foundation for resisting horizontal impacts, so that the upright pole 301 can effectively block containers that may collide in the front and rear horizontal directions.

[0036] The upright rod 301, the guide rod 302 and the horizontal rod 303 are all made of square steel tube profiles with a cross-sectional side length of 150×150 mm and a wall thickness of 10 mm.

[0037] In order to improve the guiding effect of the container guide side 3021 on the container, further, the inclination angle of the container guide side 3021 is set to 45 degrees, and the connection angle of the inclined guide rod 302 and the upright rod 301 is carefully designed so that when the container descends from the front and rear of the lashing bridge 100 area, it can guide the container to slide into the cargo hold by the inclined surface to avoid direct impact on the protective cage and personnel. Further, the container guide side 3021 is smoothly set to improve the guiding effect of the container guide side 3021 on the container when the container hits the front and rear horizontal direction and contacts the container guide side 3021. Further, the container guide side 3021 is set in an arc shape, wherein the center of the container guide side 3021 in the vertical direction extends toward the outside of the width direction a of the lashing bridge 100.

[0038] Furthermore, the container guide side 3021 and the container impact side 3011 are continuous in the vertical direction. Furthermore, the connection portion between the container guide side 3021 and the container impact side 3011 in the vertical direction is a smooth transition.

[0039] The tops of the guide rods 302 opposite to each other in the width direction a of the lashing bridge 100 are respectively welded to one end of the horizontal rod 303 in the length direction b. The upright rods 301 and the guide rods 302 on the opposite sides in the width direction a of the lashing bridge 100 are firmly welded together through the horizontal rods 303 to form a stable independent protective cage individual, thereby enhancing the overall structural strength of the protective cage so that it can withstand a certain external force impact. Furthermore, the upper end surface of the horizontal rod 303, the container guide side 3021 and the container impact side 3011 are continuously arranged.

[0040] Furthermore, in the width direction a of the lashing bridge 100 , the spacing between adjacent personnel protection cages 300 is set to 0.8 times the length of the container, so that an intermittent door-shaped personnel protection cage 300 structure is constructed on the top operating platform of the lashing bridge 100 .

[0041] In order to prevent the protective cage located on the outside of the railing 200 from affecting the normal activities of people inside the railing 200, further, the distance between the lower end surface of the horizontal rod 303 and the top surface of the tying bridge 100 is not less than twice the height of the railing 200, and the height of the railing 200 is 1 meter to 1.1 meters. The distance between the opposite sides of the vertical rod 301 in the width direction a of the tying bridge 100 is not less than the distance between the opposite sides of the railing 200 in the width direction a of the tying bridge 100, so that people have a larger space for activities above the tying bridge 100.

[0042] Furthermore, the handrail 200 and the upper end surface of the lashing bridge 100 are supported and connected with columns 400, and in the length direction b of the lashing bridge 100, the columns 400 and the personnel protection cages 300 are alternately arranged at equal intervals, wherein the personnel protection cages 300 are supported and connected between the upright rods 301 and the handrail 200 on at least one side in the width direction a of the lashing bridge 100. Through the above definition, in the length direction b of the lashing bridge 100, the personnel protection cage 300 can replace the role of part of the columns 400 to achieve stable support for the handrail 200, thereby improving the assembly efficiency of the overall device to a certain extent.

[0043] The working principle of the personnel protection cage for the lashing bridge is as follows:

[0044] When the container being hoisted sways slightly due to wind load or other factors and deviates laterally toward the lashing bridge 100, the upright poles 301 first play a blocking role, bearing the impact force to prevent the container from directly impacting personnel;

[0045] If the container descends from the front and rear sides in the width direction a of the lashing bridge 100 and sways and deviates from the normal path, the inclined container guide side 3021 provided on the guide rod 302 can change the movement direction of the container, causing it to slide into the cargo hold, thereby preventing it from falling into the range of the lashing bridge 100 and causing top pressure injuries to personnel;

[0046] Since multiple protective cages are distributed at a certain density within the width of the lashing bridge 100, they can effectively protect personnel from lateral impact and top pressure threats, while also providing certain protection above the head to reduce potential risks from above. At the same time, the railings 200 on the original lashing bridge 100 can also be protected by the protective cages, reducing the probability of damage due to impact.

[0047] In summary, the personnel protection cage for the lashing bridge adopts a unique structural form, combined with the selection of square steel tube profiles, the specific connection method between the rods, and the overall layout design to form a protective function. This structural form can effectively deal with various potential dangers in the process of lifting containers and achieve all-round protection for personnel, which is different from the existing simple structure that only relies on the railing 200 for protection;

[0048] Specifically, on the one hand, the protection function is expanded. On the basis of retaining the function of preventing people from falling of the original lashing bridge 100 railing 200, a new protection function is added to prevent the lateral impact of a small shaking container and the downward pressure of the top, which solves the problem that the prior art can only prevent people from falling, but is insufficient to protect against other dangers caused by lifting containers. The present invention greatly improves the overall safety of workers on the lashing bridge 100;

[0049] On the other hand, the structural strength and reliability are improved. The protective cage is made of square steel pipe profiles of specific specifications, and the structural strength is significantly improved. Compared with the existing easily damaged railing 200 and column 400 structures, the protective cage can better maintain structural integrity when hit by a container, provide reliable protection for personnel, and reduce the risk of injury.

[0050] The embodiments described above are only used to illustrate the technical ideas and features of the present invention, and their purpose is to enable technicians in this field to understand the contents of the present invention and implement them accordingly. The patent scope of the present invention cannot be limited only by this embodiment, that is, any equivalent changes or modifications made according to the spirit disclosed by the present invention still fall within the patent scope of the present invention.

Claims

1. A personnel protection cage for a lashing bridge, wherein the lashing bridge (100) is provided with a width direction (a) and a length direction (b), and a container to be hoisted can be provided on at least one side of the lashing bridge (100) in the width direction (a), and railings (200) are provided on the top of the lashing bridge (100) on two opposite sides in the width direction (a) of the lashing bridge (100), and the railings (200) are provided along the length direction (b) of the lashing bridge (100), characterized in that: The personnel protection cage (300) comprises: A vertical rod (301), the vertical rod (301) is vertically installed on the top of the lashing bridge (100), one vertical rod (301) is respectively arranged on two opposite sides of the lashing bridge (100) in the width direction (a), the side of the vertical rod (301) opposite to the width direction (a) of the lashing bridge (100) is a container impact side (3011), and the container impact side (3011) is located on the side of the railing (200) opposite to the width direction (a) of the lashing bridge (100); A guide rod (302), wherein the top of the upright rod (301) is connected to the guide rod (302) extending upward, the side of the guide rod (302) opposite to the width direction (a) of the lashing bridge (100) being a container guide side (3021), and the upper part of the container guide side (3021) is inclined in a manner close to the center of the width direction (a) of the lashing bridge (100); A horizontal rod (303), in the width direction (a) of the lashing bridge (100), the upright rods (301) and the guide rods (302) are supported and connected by the horizontal rod (303); The number of the personnel protection cages (300) is plural, and the personnel protection cages (300) are arranged in sequence and at intervals along the length direction (b) of the lashing bridge (100), and in the width direction (a) of the lashing bridge (100), the distance between adjacent personnel protection cages (300) is smaller than the size of the container.

2. A personnel protection cage for a lashing bridge according to claim 1, characterized in that: The upright poles (301) are located on opposite sides of the tying bridge (100) in the width direction (a) and are tightly welded to the outermost side of the top of the tying bridge (100) in the width direction (a).

3. A personnel protection cage for a lashing bridge according to claim 1, characterized in that: The upright rod (301), the guide rod (302) and the horizontal rod (303) are all made of square steel tube profiles with a cross-sectional side length of 150×150 mm and a wall thickness of 10 mm.

4. A personnel protection cage for a lashing bridge according to claim 1, characterized in that: The inclination angle of the guide side (3021) of the container is set to 45 degrees.

5. A personnel protection cage for a lashing bridge according to claim 1, characterized in that: The container guide side (3021) is arranged in an arc shape, wherein the center of the container guide side (3021) in the vertical direction extends toward the outer side in the width direction (a) of the lashing bridge (100).

6. A personnel protection cage for a lashing bridge according to claim 1, characterized in that: The container guide side (3021) and the container impact side (3011) are continuous in the vertical direction, and the connection portion between the container guide side (3021) and the container impact side (3011) in the vertical direction is a smooth transition.

7. A personnel protection cage for a lashing bridge according to claim 1, characterized in that: The tops of the guide rods (302) opposite to each other in the width direction (a) of the lashing bridge (100) are respectively fixedly connected to one end of the horizontal rod (303) in the length direction (b).

8. A personnel protection cage for a lashing bridge according to claim 1, characterized in that: In the width direction (a) of the lashing bridge (100), the spacing between adjacent personnel protection cages (300) is set to 0.8 times the length of the container.

9. A personnel protection cage for a lashing bridge according to claim 1, characterized in that: The distance between the lower end surface of the horizontal rod (303) and the top surface of the lashing bridge (100) is not less than twice the height of the handrail (200), the height of the handrail (200) is 1 meter to 1.1 meters, and the distance between the two opposite sides of the vertical rod (301) in the width direction (a) of the lashing bridge (100) is not less than the distance between the two opposite sides of the handrail (200) in the width direction (a) of the lashing bridge (100).

10. A personnel protection cage for a lashing bridge according to claim 1, characterized in that: A column (400) is supported and connected between the handrail (200) and the upper end surface of the lashing bridge (100); in the length direction (b) of the lashing bridge (100), the columns (400) and the personnel protection cage (300) are alternately and evenly arranged, wherein the personnel protection cage (300) is supported and connected between the upright pole (301) and the handrail (200) on at least one side in the width direction (a) of the lashing bridge (100).

Images