Ladder and railing interlocked tank container

Abstract

The present application relates to a kind of tank container of ladder and rail linkage, including frame, ladder assembly, rail assembly and connecting rod mechanism, and drive assembly.Ladder assembly is foldably arranged in the side of frame.Rail assembly is foldably arranged in the top of frame.Connecting rod mechanism includes connecting plate, first connecting rod and second connecting rod, for connecting ladder assembly and rail assembly.Drive assembly is arranged on frame and is drivenly connected with ladder assembly or rail assembly, for driving ladder assembly or rail assembly to rotate.One of ladder assembly and rail assembly can be driven to rotate synchronously by connecting rod mechanism when the other one of ladder assembly and rail assembly is rotated.Therefore, worker can realize the simultaneous folding or simultaneous unfolding of ladder assembly and rail assembly by once operation, which is advantageous to simplify operation step, improve work efficiency, and save the step and time of operating ladder assembly and rail assembly respectively, save the power source and energy consumption of driving ladder assembly and rail assembly respectively.

Description

Technical Field

[0001] This invention relates to the field of container technology, and in particular to a tank container with a ladder and railing linkage. Background Technology

[0002] Currently, ladders and top handrails in the tank container industry are typically installed as independent functional components. Specifically, most existing tank container ladders use a welded and fixed structure, which is inconvenient to use and prone to collisions. In view of the above problems, flip-up and folding ladders are gradually gaining attention, but their application in tank containers is still relatively limited.

[0003] On the other hand, the handrails on the top of tank containers are generally folding structures. Based on the control method for unfolding and folding, they are mainly divided into two categories: one is remote control type, where operators can directly control the unfolding and folding of the handrails from the ground; the other is short-range pull type, where operators must climb onto the top of the tank container to complete the unfolding and folding of the handrails.

[0004] However, the aforementioned folding ladder and folding handrail are structurally and operationally independent. Operators need to operate the ladder and handrail separately, which greatly affects operational efficiency and convenience. Summary of the Invention

[0005] One objective of this invention is to address the shortcomings of existing technologies where operators need to operate the ladder and handrails separately, significantly impacting operational efficiency and convenience. This invention provides a tank container with an interconnected ladder and handrail. To solve the aforementioned technical problems, this invention adopts the following technical solution:

[0006] A tank container with a linked ladder and railings, comprising: frame; A ladder assembly that is foldably mounted on the side of the frame; A railing assembly that is foldably mounted on top of the frame; A linkage mechanism includes a connecting plate, a first link, and a second link. The middle part of the connecting plate is rotatably mounted on a frame. One end of the first link is rotatably connected to a ladder assembly, and the other end of the first link is rotatably connected to one end of the connecting plate. The other end of the connecting plate is rotatably connected to one end of the second link, and the other end of the second link is rotatably connected to a railing assembly. A drive assembly is mounted on the frame and driven to connect with the ladder assembly or railing assembly. The drive assembly is used to drive the ladder assembly or railing assembly to rotate. When one of the ladder assembly or railing assembly rotates, it can drive the other of the ladder assembly or railing assembly to rotate synchronously through a linkage mechanism.

[0007] In one embodiment, when one of the ladder assembly and the railing assembly is fully folded, the other of the ladder assembly and the railing assembly is simultaneously fully folded. When one of the ladder assembly and the railing assembly is fully deployed, the other of the ladder assembly and the railing assembly are simultaneously fully deployed.

[0008] In one embodiment, the connecting plate is provided with a first rotating shaft, a second rotating shaft and a third rotating shaft arranged in a triangle, with the first rotating shaft located above the second rotating shaft and the second rotating shaft and the third rotating shaft distributed on both sides of the first rotating shaft; The first rotating shaft is used to rotate and connect the frame and the connecting plate; the second rotating shaft is used to rotate and connect the first connecting rod and the connecting plate; and the third rotating shaft is used to rotate and connect the second connecting rod and the connecting plate.

[0009] In one embodiment, the frame is provided with a support base, one end of the first rotating shaft is rotatably connected to the connecting plate, and the other end of the first rotating shaft is fixedly provided with an adjusting plate. The adjusting plate is connected to the support base, and the position of the adjusting plate in the vertical direction is adjustable.

[0010] In one embodiment, the ladder assembly includes a support column, a handrail, and multiple steps. The support column is disposed between the top and bottom of the frame, and the multiple steps are spaced apart along the height direction of the support column. Each step is rotatably connected to the support column, and the handrail is rotatably connected to each step. The handrail and the support column are located on opposite sides of the step width direction. The handrail is equipped with a connecting shaft, and the end of the first link away from the connecting plate is rotatably connected to the connecting shaft.

[0011] In one embodiment, the drive assembly includes a handle rotatably mounted on the frame, the handle being driven to a connecting shaft to manually drive the handrail and multiple pedals to rotate, while simultaneously moving a first link to cause the railing assembly to rotate accordingly.

[0012] In one embodiment, the drive assembly includes a transmission rod, one end of which is rotatably mounted on the frame and the other end of which is rotatably connected to a connecting shaft. The handle can drive the transmission rod to rotate relative to the frame, thereby rotating the handrail and multiple pedals. At the same time, the connecting shaft drives the first link to move, causing the railing assembly to rotate accordingly.

[0013] In one embodiment, the drive assembly further includes an upper gear and a lower gear arranged vertically at intervals on the frame, and a transmission chain sleeved between the upper gear and the lower gear. The upper gear is rotatably mounted on the frame. The end of the transmission rod away from the connecting shaft is connected and fixed to the upper gear. The lower gear is rotatably mounted on the frame and located below the upper gear. One end of the handle is connected and fixed to the lower gear. The handle can drive the lower gear to rotate, thereby driving the upper gear and the transmission rod to rotate accordingly.

[0014] In one embodiment, the tank container with the ladder and railing linkage includes a first stop structure disposed between the lower gear and the frame, and used to lock the relative rotation between the lower gear and the frame when the ladder assembly is fully extended or fully folded.

[0015] In one embodiment, the ladder assembly includes a locking structure disposed between the support column and the handrail, and is used to lock relative movement between the handrail and the support column when the ladder assembly is fully folded.

[0016] In one embodiment, the ladder assembly includes a limiting structure disposed between a support column and a step, and for causing the step to abut against the support column when the ladder assembly is fully extended.

[0017] In one embodiment, the railing assembly includes a horizontal bar and a plurality of vertical bars, the plurality of vertical bars being spaced apart along the length of the horizontal bar, and the top of each vertical bar being rotatably connected to the horizontal bar. The frame is equipped with a rotating seat and a rotating shaft that can be rotatably mounted on the rotating seat. The bottom ends of each vertical rod are connected to the rotating shaft. A connecting rod protrudes from one of the rotating shafts, and the connecting rod is rotatably connected to the end of the second connecting rod away from the connecting plate.

[0018] In one embodiment, the drive assembly includes a power component fixedly mounted on the frame. The power component is drive-connected to a rotating shaft to drive the rotating shaft to rotate relative to the rotating seat, causing multiple vertical bars to rotate relative to the frame and horizontal bars. At the same time, the second connecting rod is driven to move through the connecting rod, causing the climbing ladder assembly to rotate accordingly.

[0019] In one embodiment, the drive assembly further includes a drive gear and a driven gear, and a drive chain sleeved between the drive gear and the driven gear. The drive gear is connected to the power output shaft of the power component, and the driven gear is fixedly sleeved on the rotating shaft. The power component can drive the drive gear to rotate so as to drive the driven gear to rotate, so that the rotating shaft can rotate relative to the rotating seat.

[0020] In one embodiment, the tank container with ladder and railing linkage includes a second stop structure disposed between the driven gear and the drive chain, and used to lock the relative movement between the driven gear and the drive chain when the railing assembly is fully extended or fully folded.

[0021] As can be seen from the above technical solution, the present invention has at least the following advantages and positive effects: In this invention, the tank container with linked ladder and railings includes a frame, a ladder assembly, a railing assembly, a linkage mechanism, and a drive assembly. The ladder assembly and railing assembly are foldably mounted on the frame. The linkage mechanism connects the ladder assembly and the railing assembly, enabling their linkage. The drive assembly drives one of the ladder assembly and the railing assembly to rotate, causing the other to rotate synchronously. This allows workers to simultaneously fold or unfold the ladder assembly and the railing assembly in a single operation, simplifying operations, improving efficiency, and eliminating the need for separate operations of the ladder assembly and the railing assembly, thus saving power and energy consumption associated with separate drives. Attached Figure Description

[0022] Figure 1 This is a structural schematic diagram of a tank container with a ladder and railing linkage according to an embodiment of the present invention.

[0023] Figure 2 yes Figure 1 A front view schematic diagram of the structure shown.

[0024] Figure 3 yes Figure 1 A schematic diagram showing the folded state of the ladder assembly and railing assembly in the structure shown.

[0025] Figure 4 yes Figure 1 An enlarged schematic diagram of point A in the structure shown.

[0026] Figure 5 yes Figure 2 An enlarged schematic diagram of point B in the structure shown.

[0027] Figure 6 yes Figure 2 A schematic diagram of the structure at the location of the folding ladder in the structure shown.

[0028] Figure 7 This is a structural schematic diagram of the linkage mechanism in another embodiment.

[0029] The annotations in the attached figures are explained as follows: 10-Frame; 11-Support base; 12-Rotating base; 13-Rotating shaft; 131-Connecting rod; 14-Limiting part; 20-Ladder assembly; 21-Supporting column; 22-Handrail; 221-Connecting shaft; 23-Step; 30 - Guardrail assembly; 31 - Horizontal bar; 32 - Vertical bar; 40 - Linkage mechanism; 41 - Connecting plate; 411 - First rotating shaft; 412 - Second rotating shaft; 413 - Third rotating shaft; 414 - Adjusting plate; 42 - First connecting rod; 43 - Second connecting rod; 50-Drive assembly; 51-Handle; 52-Drive rod; 53-Upper gear; 54-Lower gear; 55-Drive chain; 56-Power component; 57-Driving gear; 58-Driven gear; 59-Drive chain; 60 - First stop structure; 70 - Locking structure; 71 - Spring pin; 72 - Pin hole; 80-Limiting structure; 81-Limiting plate; 82-Limiting block; 83-Supporting pad. Detailed Implementation

[0030] Typical embodiments embodying the features and advantages of the present invention will be described in detail in the following description. It should be understood that the present invention can have various variations in different embodiments without departing from the scope of the present invention, and the descriptions and illustrations herein are for illustrative purposes only and not intended to limit the present invention.

[0031] In the description of this application, it should be understood that, in the embodiments shown in the accompanying drawings, the indications of direction or positional relationships (such as up, down, left, right, front, and back, etc.) are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. These descriptions are appropriate when these elements are in the positions shown in the accompanying drawings. If the description of the positions of these elements changes, these directional indications also change accordingly.

[0032] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0033] Please see Figure 1 As shown, the ladder and railing linkage tank container (hereinafter referred to as tank container) of this embodiment includes a frame 10, a ladder assembly 20, a railing assembly 30, a linkage mechanism 40, and a drive assembly 50.

[0034] The frame 10 can be a roughly rectangular parallelepiped structure. The interior space of the frame 10 is used to accommodate the tank. Optionally, the length of the frame 10 is arranged along the axial direction of the tank.

[0035] See Figure 1The ladder assembly 20 is foldably disposed on the side of the frame 10. The ladder assembly 20 is mainly used for workers to access the tank. Optionally, the ladder assembly 20 can be disposed at the end frame position along the length of the frame 10. If necessary, a set of ladder assemblies 20 can be disposed at each end of the frame 10 along its length.

[0036] Alternatively, in other embodiments, the ladder assembly 20 may also be located at the side frame position in the width direction of the frame 10. If necessary, a set of ladder assemblies 20 may be provided on each side of the frame 10 in the width direction.

[0037] See Figure 2 In one embodiment, the ladder assembly 20 includes support columns 21, handrails 22, and a plurality of footboards 23, wherein the support columns 21 are disposed between the top and bottom of the frame 10. Optionally, there may be two support columns 21, which are arranged in parallel and spaced apart. The two ends of each support column 21 may be connected to the top and bottom of the end frame, respectively.

[0038] Multiple pedals 23 are arranged at intervals along the height direction of the support column 21, and each pedal 23 is rotatably connected to the support column 21. Optionally, the inner ends of each pedal 23 can be rotatably connected to two support columns 21 respectively. For example, the pedal 23 and the support column 21 can be rotatably connected by a shaft-hole fitting structure.

[0039] The handrail 22 is rotatably connected to each pedal 23, and the handrail 22 and the supporting column 21 are located on both sides of the width direction of the pedal 23. Optionally, there can be two handrails 22, and the two handrails 22 are rotatably connected to the outer ends of each pedal 23. For example, the pedal 23 and the handrail 22 can be rotatably connected by a shaft-hole fitting structure.

[0040] It is worth noting that, in the embodiments of the present invention, the inner and outer sides of each step 23 refer to the opposite sides of each step 23 in the width direction when the ladder assembly 20 is in the fully extended state, and the side closer to the tank is the inner side, and the side farther away from the tank is the outer side.

[0041] In this embodiment, reference is made to Figure 1 As shown, when the ladder assembly 20 is fully extended, each step 23 can support the column 21 approximately vertically, meaning each step 23 is basically parallel to the ground, facilitating workers' access to and from the tank. The handrail 22 also provides protection. (Reference) Figure 3As shown, when the ladder assembly 20 is fully folded, each step 23 is folded relative to the support column 21 and is approximately perpendicular to the ground. The handrail 22 is folded relative to each step 23 and is parallel to and attached to the support column 21. This results in a smaller overall thickness of the ladder assembly 20, which helps to reduce the space occupied by the ladder assembly 20 and facilitates the arrangement of the ladder assembly 20 in the limited space of the tank container.

[0042] See Figure 4 In one embodiment, the ladder assembly 20 includes a locking structure 70 disposed between the support column 21 and the handrail 22, and used to lock the relative movement between the handrail 22 and the support column 21 when the ladder assembly 20 is fully folded. Thus, the locking structure 70 helps ensure that the ladder assembly 20 remains in the fully folded position, ensuring reliable storage of the ladder assembly 20, improving safety during tank container transportation, and preventing accidental unfolding of the steps 23 and handrail 22.

[0043] Optionally, the locking structure 70 may include a spring pin 71 disposed at the bottom of the handrail 22, and a pin hole 72 corresponding to the spring pin 71 at the bottom of the support column 21. When the ladder assembly 20 is fully folded, the end of the spring pin 71 can be inserted into the pin hole 72. When it is necessary to unfold the ladder assembly 20, the spring pin 71 is pulled to disengage its end from the pin hole 72.

[0044] It is understood that in other embodiments, the locking structure 70 may also adopt other structures that can lock the relative movement between the handrail 22 and the support column 21, which can be set according to actual needs.

[0045] See Figure 4 In one embodiment, the ladder assembly 20 includes a limiting structure 80 disposed between the support column 21 and the step 23, and is used to cause the step 23 to abut against the support column 21 when the ladder assembly 20 is fully extended.

[0046] Optionally, the limiting structure 80 may include a limiting plate 81 disposed on the support column 21 and a limiting block 82 disposed on the corresponding step 23. The limiting block 82 may be a pivot fixedly connected to the rear end of the step 23. When the ladder assembly 20 is fully extended, the limiting block 82 can abut against the limiting plate 81, keeping the step 23 in the fully extended position relative to the support column 21 and preventing the step 23 from being over-extended.

[0047] Optionally, the limiting structure 80 can be correspondingly disposed between the top of the support column 21 and the highest pedal 23, and correspondingly disposed between the top of the support column 21 and the lowest pedal 23. The limiting structure 80 may not be disposed on the other pedals 23 and the support column 21, which helps to simplify the manufacturing process and save costs.

[0048] Optionally, refer to Figure 4 The limiting structure 80 may further include a support pad 83, which is disposed between the two support columns 21 to support the pedal 23. Optionally, there may be two support pads 83, which are respectively disposed between the top and bottom of the two support columns 21 to support the highest and lowest pedals 23, respectively. It is understood that support pads 83 may be provided at other positions on the two support columns 21, or they may not be provided.

[0049] It is understood that in other embodiments, the limiting structure 80 may also adopt other structures that can keep the pedal 23 in a fully extended position relative to the supporting column 21, which can be set according to actual needs.

[0050] In this embodiment, by setting a limiting structure 80, the step 23 can be supported when the ladder assembly 20 is fully extended, thereby helping to improve the reliability of each step 23 in the extended state of the ladder assembly 20 and improving the safety of workers going up and down the tank.

[0051] See Figure 1 In this invention, the guardrail assembly 30 is foldably mounted on top of the frame 10. The guardrail assembly 30 primarily serves to protect workers when they ascend to the top of the tank to perform related operations.

[0052] For example, the railing assembly 30 includes a horizontal bar 31 and a plurality of vertical bars 32, wherein the length direction of the horizontal bar 31 may be aligned with the length direction of the tank container. The plurality of vertical bars 32 are arranged at intervals along the length direction of the horizontal bar 31, and the top end of each vertical bar 32 is rotatably connected to the horizontal bar 31. The bottom end of each vertical bar 32 is rotatably connected to the frame 10.

[0053] like Figure 1 As shown, optionally, the frame 10 is provided with a rotating seat 12 and a rotating shaft 13 rotatably mounted on the rotating seat 12, and the bottom ends of each vertical rod 32 are respectively connected to the rotating shaft 13.

[0054] In this embodiment, reference is made to Figure 1 When the guardrail assembly 30 is fully deployed, each vertical bar 32 is approximately perpendicular to the ground, and the horizontal bar 31 is approximately parallel to the ground and blocks the sides above the tank container. Therefore, the guardrail assembly 30 can protect workers and improve their operational safety. (Reference) Figure 3 When the railing assembly 30 is fully folded, each vertical bar 32 folds relative to the frame 10, and the horizontal bar 31 does not exceed the top surface of the frame 10, so that the railing assembly 30 can be stored on the top of the tank container without occupying the space above the tank container, which facilitates the use and transportation of the tank container.

[0055] See Figure 1 Optionally, the railing assembly 30 may include a limiting part 14, which may be disposed on the frame 10 corresponding to each vertical bar 32. The limiting part 14 can abut against the vertical bar 32 when the railing assembly 30 is fully extended, preventing the vertical bar 32 from rotating excessively, thereby helping to ensure that the railing assembly 30 is kept in the fully extended position.

[0056] It is understood that when the railing assembly 30 is fully folded, it can be limited by the mutual abutment of the horizontal bar 31 and each vertical bar 32. Therefore, no additional limiting devices are needed to keep the railing assembly 30 in the fully folded position, which helps to simplify the manufacturing process and reduce costs.

[0057] See Figure 2 In this invention, the linkage mechanism 40 is mainly used to connect the ladder assembly 20 and the railing assembly 30, realizing the linkage of their movement states. For example, as... Figure 5 As shown, the linkage mechanism 40 includes a connecting plate 41, a first link 42, and a second link 43. The middle part of the connecting plate 41 is rotatably mounted on the frame 10.

[0058] Optionally, the middle part of the connecting plate 41 can be rotatably mounted on the frame 10 in such a way that the connecting plate 41 is provided with a first rotating shaft 411, which is used to rotate the connecting frame 10 and the connecting plate 41.

[0059] See Figure 5 In one embodiment, the frame 10 is provided with a support base 11. One end of the first rotating shaft 411 is rotatably connected to the connecting plate 41. For example, the connecting plate 41 may have a shaft hole, and one end of the first rotating shaft 411 may pass through the shaft hole.

[0060] An adjusting plate 414 can be fixedly mounted on the other end of the first rotating shaft 411, and the adjusting plate 414 is connected to the support base 11. The adjusting plate 414 and the first rotating shaft 411 can be fixed by welding. Alternatively, the adjusting plate 414 and the support base 11 can be connected by bolts.

[0061] Optionally, the adjusting plate 414 is vertically adjustable. For example, the support base 11 has an elongated hole extending vertically. When the adjusting plate 414 is connected to the support base 11 by a bolt structure, the bolt can move up and down within the elongated hole to adjust the position of the adjusting plate 414. After the position of the adjusting plate 414 is determined, the bolt can be tightened.

[0062] In this embodiment, the connecting plate 41 is rotatably connected to the support base 11 via the first rotating shaft 411 and the adjusting plate 414, which has a simple structure and reliable connection. Furthermore, by adjusting the position of the adjusting plate 414, the height position of the connecting plate 41 on the frame 10 can be finely adjusted, thereby facilitating the structural arrangement of the linkage mechanism 40 and improving the applicability of the linkage mechanism 40.

[0063] like Figure 5 As shown, one end of the first connecting rod 42 is rotatably connected to the ladder assembly 20. Optionally, a connecting shaft 221 is provided on the handrail 22, and the end of the first connecting rod 42 away from the connecting plate 41 is rotatably connected to the connecting shaft 221.

[0064] The other end of the first connecting rod 42 is rotatably connected to one end of the connecting plate 41. Optionally, the connecting plate 41 is provided with a second rotating shaft 412, which is used to rotatably connect the first connecting rod 42 and the connecting plate 41. The second rotating shaft 412 can be a pin, which passes through the holes in the first connecting rod 42 and the connecting plate 41, respectively. Alternatively, the second rotating shaft 412 can be fixed to the connecting plate 41 and can pass through the hole in the first connecting rod 42.

[0065] like Figure 5 As shown, the other end of the connecting plate 41 is rotatably connected to one end of the second connecting rod 43. Optionally, the connecting plate 41 is provided with a third rotating shaft 413, which is used to rotatably connect the second connecting rod 43 and the connecting plate 41. The third rotating shaft 413 can be a pin, which passes through the holes in the second connecting rod 43 and the connecting plate 41, respectively. Alternatively, the third rotating shaft 413 can be fixed to the connecting plate 41 and can pass through the hole in the second connecting rod 43.

[0066] The other end of the second link 43 is rotatably connected to the railing assembly 30. Optionally, a connecting rod 131 protrudes from one of the rotating shafts 13 of the railing assembly 30, and the connecting rod 131 is rotatably connected to the end of the second link 43 away from the connecting plate 41.

[0067] refer to Figure 5 In this embodiment, the first rotating shaft 411, the second rotating shaft 412, and the third rotating shaft 413 on the connecting plate 41 can be arranged in a triangular pattern. The first rotating shaft 411 is located above the second rotating shaft 412 and the third rotating shaft 413, and the second rotating shaft 412 and the third rotating shaft 413 are distributed on both sides of the first rotating shaft 411.

[0068] Optionally, the connecting plate 41 can be configured as a triangular structure. The first rotating shaft 411, the second rotating shaft 412, and the third rotating shaft 413 can be respectively arranged at the three corners of the triangular plate structure. The triangular structure can help increase the rigidity and stability of the connecting plate 41, improve its bending and torsional stiffness, and help to uniformly transmit force and torque, thereby improving the motion accuracy and load-bearing capacity of the linkage mechanism 40.

[0069] It is understood that in other embodiments, the connecting plate 41 can also be configured as a fan-shaped plate structure or an arc-shaped plate structure, as long as it can form three hinge points to connect the frame 10, the first connecting rod 42 and the second connecting rod 43 respectively. The specific configuration can be made according to actual needs.

[0070] See Figure 1 In this invention, the drive assembly 50 is mounted on the frame 10 and is drivenly connected to the ladder assembly 20 or the railing assembly 30. The drive assembly 50 is used to drive the ladder assembly 20 or the railing assembly 30 to rotate, so that when one of the ladder assembly 20 and the railing assembly 30 rotates, the other of the ladder assembly 20 and the railing assembly 30 can be driven to rotate synchronously through the linkage mechanism 40.

[0071] For example, the ladder assembly 20 and the handrail assembly 30 can rotate synchronously in the following ways: when one of the ladder assembly 20 and the handrail assembly 30 is fully folded, the other of the ladder assembly 20 and the handrail assembly 30 is simultaneously fully folded. When one of the ladder assembly 20 and the handrail assembly 30 is fully unfolded, the other of the ladder assembly 20 and the handrail assembly 30 is simultaneously fully unfolded. Thus, workers can achieve simultaneous folding or unfolding of the ladder assembly 20 and the handrail assembly 30 with a single operation, eliminating the need to operate the ladder assembly 20 and the handrail assembly 30 separately, making the operation much simpler.

[0072] In this invention, the drive component 50 can be operated manually or electrically to drive one of the ladder component 20 and the railing component 30 to rotate, respectively.

[0073] See Figure 2 and Figure 6 In one embodiment, the drive assembly 50 includes a handle 51 rotatably mounted on the frame 10. The handle 51 can drive the ladder assembly 20 to rotate, thereby causing the railing assembly 30 to rotate synchronously. Optionally, the handle 51 can be driven to connect to a connecting shaft 221 on the handrail 22 of the ladder assembly 20, so as to manually drive the handrail 22 and a plurality of pedals 23 to rotate, while simultaneously moving the first link 42 to cause the railing assembly 30 to rotate accordingly.

[0074] For example, the drive assembly 50 also includes a transmission rod 52, one end of which is rotatably mounted on the frame 10, and the other end of which is rotatably connected to the connecting shaft 221. The handle 51 can drive the transmission rod 52 to rotate relative to the frame 10, thereby rotating the handrail 22 and the plurality of pedals 23, and simultaneously driving the first link 42 to move via the connecting shaft 221, causing the railing assembly 30 to rotate accordingly.

[0075] In this embodiment, when the operator operates the handle 51, the handle 51 drives the transmission rod 52 to rotate on the frame 10. The transmission rod 52 then drives the handrail 22 to move via the connecting shaft 221, causing multiple pedals 23 to rotate accordingly. Simultaneously, it can also drive the first connecting rod 42 to move, causing the railing assembly 30 to rotate accordingly. This operation method does not require any power source, which helps to save costs and reduce energy consumption.

[0076] refer to Figure 1 In an embodiment of the present invention, the ladder assembly 20 is disposed on the end side of the frame 10, the handrail assembly 30 is disposed on the top of the frame 10, and the linkage mechanism 40 can be arranged at the apex corner where the end side of the ladder assembly 20 and the top of the frame 10 meet. The first link 42 of the linkage mechanism 40 is connected to the connecting shaft 221 of the handrail 22. The connecting shaft 221 can be disposed near the top of the handrail 22 to help reduce the length of the first link 42 and transmit greater force.

[0077] See Figure 6 In one embodiment, the drive assembly 50 further includes an upper gear 53 and a lower gear 54 arranged vertically at intervals on the frame 10, and a transmission chain 55 sleeved between the upper gear 53 and the lower gear 54. The upper gear 53 is rotatably mounted on the frame 10, and the end of the transmission rod 52 away from the connecting shaft 221 is connected and fixed to the upper gear 53. The lower gear 54 is rotatably mounted on the frame 10 and located below the upper gear 53. One end of the handle 51 is connected and fixed to the lower gear 54, and the handle 51 can drive the lower gear 54 to rotate, thereby driving the upper gear 53 and the transmission rod 52 to rotate accordingly.

[0078] In this embodiment, the transmission rod 52 and the first connecting rod 42 are simultaneously connected to the connecting shaft 221, and the transmission rod 52 is positioned at a higher position on the frame 10. By setting the upper gear 53, the lower gear 54, and the transmission chain 55, the handle 51 can be positioned below the middle of the frame 10, which facilitates the operator's operation of the handle 51 to drive the transmission rod 52 to rotate, thus improving the convenience of manual operation.

[0079] It is understood that in other embodiments, the upper gear 53, lower gear 54, and transmission chain 55 may be omitted. The handle 51 can be directly connected to the transmission rod 52 and can directly drive the transmission rod 52 to rotate. Operators can operate the handle 51 using tools. Specific configurations can be made according to actual needs.

[0080] Alternatively, in other embodiments, the manually operated drive component 50 can be omitted. Workers can directly pull the handrail 22 of the ladder assembly 20 to rotate the handrail 22 and multiple footboards 23, which in turn moves the first connecting rod 42, causing the railing assembly 30 to rotate accordingly. Alternatively, workers can use tools to fold or unfold the railing assembly 30, causing the ladder assembly 20 to fold or unfold accordingly.

[0081] refer to Figure 6 Optionally, the length direction of the handle 51 can be aligned with the length direction of the transmission rod 52. For example, the upper gear 53 and the lower gear 54 have the same number of teeth, and the rotation range of the handle 51 can be within a 90° angle range. When the handle 51 is pulled to the vertical end frame position, the transmission rod 52 rotates accordingly to the vertical end frame position, and the ladder assembly 20 and the railing assembly 30 are fully extended. (Reference) Figure 3 When the handle 51 is turned upwards until it is approximately parallel to the end frame, the transmission rod 52 can be turned upwards accordingly to a roughly vertical position, and the ladder assembly 20 and the railing assembly 30 will be completely folded.

[0082] Alternatively, the length direction of the handle 51 can be perpendicular to the length direction of the transmission rod 52. For example, the number of teeth of the upper gear 53 can be set to twice the number of teeth of the lower gear 54. The rotation range of the handle 51 can be within a 180° angle range. When the handle 51 is rotated downwards until it is parallel to the end frame, the transmission rod 52 rotates accordingly to a position perpendicular to the end frame, at which point the ladder assembly 20 and the railing assembly 30 are fully extended. When the handle 51 is rotated upwards until it is parallel to the end frame, the transmission rod 52 rotates accordingly upwards to a roughly vertical position, at which point the ladder assembly 20 and the railing assembly 30 are fully folded.

[0083] refer to Figure 6 In one embodiment, the tank container with linked ladder and railing includes a first stop structure 60 disposed between the lower gear 54 and the frame 10, and used to lock relative rotation between the lower gear 54 and the frame 10 when the ladder assembly 20 is fully extended or fully folded. This helps ensure that the ladder assembly 20 is held in the fully extended or fully folded position, and facilitates the synchronous holding of the railing assembly 30 in the fully extended or fully folded position.

[0084] Optionally, the first stop structure 60 may include a stop hole and a locking pin. Two stop holes may be provided, each located on the lower gear 54. The locking pin is movably mounted on the frame 10. When the ladder assembly 20 is fully folded, the locking pin can be inserted into one of the stop holes. When the ladder assembly 20 needs to be unfolded, the locking pin is pulled to disengage it from that stop hole. When the ladder assembly 20 is fully unfolded, the locking pin can be inserted into the other stop hole. It can be understood that when the lower gear 54 is locked, the position of the handle 51 is locked, thereby locking the drive assembly 50 and locking the positions of the ladder assembly 20 and the railing assembly 30.

[0085] It is understood that in other embodiments, the first stop structure 60 may also adopt other structures that can lock the relative rotation between the lower gear 54 and the frame 10 when the ladder assembly 20 is fully extended or fully folded, and the specific configuration can be made according to actual needs.

[0086] See Figure 7 In another embodiment, the drive assembly 50 includes a power member 56 fixedly mounted on the frame 10, which can drive the railing assembly 30 to rotate, thereby causing the ladder to rotate synchronously.

[0087] Optionally, the power component 56 can be driven to rotate the rotating shaft 13 to rotate the rotating shaft 13 relative to the rotating seat 12, so that the multiple vertical rods 32 rotate relative to the frame 10 and the horizontal rod 31, and at the same time drive the second connecting rod 43 to move through the connecting rod 131, so that the climbing ladder assembly 20 rotates accordingly.

[0088] Optionally, the power component 56 can be a drive motor or a remote control motor, which can receive external control signals and output corresponding torque, speed, rotation angle, etc. based on the control signals to drive the rotating shaft 13 to rotate, thereby realizing the folding or unfolding of the railing assembly 30 and the synchronous folding or unfolding of the ladder assembly 20.

[0089] In this embodiment, the simultaneous folding or unfolding of the railing assembly 30 and the ladder assembly 20 by the power component 56 can help achieve automated control of the operation, improve operational efficiency, and save labor and time costs.

[0090] See Figure 7In one embodiment, the drive assembly 50 further includes a drive gear 57 and a driven gear 58, and a drive chain 59 sleeved between the drive gear 57 and the driven gear 58. The drive gear 57 is connected to the power output shaft of the power component 56, and the driven gear 58 is fixedly sleeved on the rotating shaft 13. The power component 56 can drive the drive gear 57 to rotate, thereby driving the driven gear 58 to rotate, so that the rotating shaft 13 can rotate relative to the rotating seat 12. By providing the drive gear 57, the driven gear 58, and the drive chain 59, the power of the power component 56 can be reliably transmitted to the rotating shaft 13, and the installation arrangement of the power component 56 on the frame 10 can be facilitated.

[0091] In one embodiment, the tank container with linked ladder and railing also includes a second stop structure, which may be disposed between the driven gear 58 and the drive chain 59, and is used to lock the relative movement between the driven gear 58 and the drive chain 59 when the railing assembly 30 is fully extended or fully folded. This helps to ensure that the railing assembly 30 is held in the fully extended or fully folded position, and facilitates the synchronous holding of the ladder assembly 20 in the fully extended or fully folded position.

[0092] Optionally, the second stop structure may include a stop pin disposed on the drive chain 59 and an arc-shaped groove disposed on the driven gear 58, the two ends of which correspond to the fully extended position and the fully folded position of the railing assembly 30, respectively. When the railing assembly 30 is fully extended, the stop pin abuts against one end of the arc-shaped groove, stopping the relative movement between the driven gear 58 and the drive chain 59. When the railing assembly 30 is fully folded, the stop pin abuts against the other end of the arc-shaped groove, stopping the relative movement between the driven gear 58 and the drive chain 59. It can be understood that when the driven gear 58 is locked in place, the power component 56, such as a motor, will automatically stop rotating, thereby completing the self-locking of the drive assembly 50 and locking the positions of the railing assembly 30 and the ladder assembly 20.

[0093] It is understood that in other embodiments, the second stop structure may also adopt other structures that can lock the relative movement between the driven gear 58 and the drive chain 59 when the railing assembly 30 is fully extended or fully folded, which can be set according to actual needs.

[0094] In this embodiment, the power component 56 drives the railing assembly 30 to rotate, thereby causing the ladder assembly 20 to rotate synchronously. However, this application is not limited to this. In other embodiments, the power component 56 can also drive the ladder assembly 20 to rotate, thereby causing the railing assembly 30 to rotate synchronously. For example, the power component 56 can be driven to connect with the transmission rod 52 mentioned above, so as to drive the transmission rod 52 to rotate relative to the frame 10, thereby driving the handrail 22 and multiple pedals 23 to rotate, and at the same time driving the first connecting rod 42 to move through the connecting shaft 221, so that the railing assembly 30 rotates accordingly. In this case, the handle 51, the lower gear 54, and the transmission chain 55 can be omitted.

[0095] Alternatively, in other embodiments, the aforementioned drive component 50, which can be either manually operated or electrically controlled, can coexist. That is, the operator can either manually drive the ladder component 20 to rotate via the handle 51, thereby causing the railing component 30 to rotate synchronously, or drive the railing component 30 to rotate via a motor, thereby causing the ladder component 20 to rotate synchronously. Alternatively, the drive component 50 can include two power components 56, such as motors. The two motors can be connected to the ladder component 20 and the railing component 30 respectively. Therefore, the operator can either drive the ladder component 20 to rotate via a motor, thereby causing the railing component 30 to rotate synchronously, or drive the railing component 30 to rotate via a motor, thereby causing the ladder component 20 to rotate synchronously. The specific configuration can be tailored to actual needs.

[0096] This invention relates to a tank container with linked ladders and railings, comprising a frame, a ladder assembly, a railing assembly, a linkage mechanism, and a drive assembly. The ladder assembly and railing assembly are foldably mounted on the frame. The linkage mechanism connects the ladder assembly and the railing assembly, enabling their linkage. The drive assembly drives either the ladder assembly or the railing assembly to rotate, causing the other assembly to rotate synchronously. This allows workers to simultaneously fold or unfold the ladder assembly and railing assembly in a single operation, simplifying operations, improving efficiency, and eliminating the need for separate operations of the ladder and railing assemblies, thus saving power and energy consumption associated with separate drives.

[0097] The above embodiments are merely illustrative examples of structures. The structures in each embodiment are not fixed combinations. In the absence of structural conflicts, the structures in multiple embodiments can be arbitrarily combined and used.

[0098] Although the invention has been described with reference to several typical embodiments, it should be understood that the terminology used is illustrative and exemplary, and not restrictive. Since the invention can be embodied in many forms without departing from the spirit or essence of the invention, it should be understood that the above embodiments are not limited to any of the foregoing details, but should be interpreted broadly within the spirit and scope defined by the appended claims. Therefore, all variations and modifications falling within the scope of the claims or their equivalents should be covered by the appended claims.

Claims

1. A tank container with a ladder and rail linkage, characterized in that include: frame; A ladder assembly, which is foldably disposed on the side of the frame; A railing assembly that is foldably mounted on top of the frame; A linkage mechanism includes a connecting plate, a first link, and a second link. The middle part of the connecting plate is rotatably mounted on the frame. One end of the first link is rotatably connected to the ladder assembly, and the other end of the first link is rotatably connected to one end of the connecting plate. The other end of the connecting plate is rotatably connected to one end of the second link, and the other end of the second link is rotatably connected to the railing assembly. A drive assembly is disposed on the frame and drivenly connected to the ladder assembly or the railing assembly. The drive assembly is used to drive the ladder assembly or the railing assembly to rotate. When one of the ladder assembly and the railing assembly rotates, it can drive the other of the ladder assembly and the railing assembly to rotate synchronously through the linkage mechanism.

2. The tank container with ladder and railing linkage according to claim 1, characterized in that, When one of the ladder assembly and the railing assembly is fully folded, the other of the ladder assembly and the railing assembly is fully folded simultaneously. When one of the ladder assembly and the railing assembly is fully deployed, the other of the ladder assembly and the railing assembly are simultaneously fully deployed.

3. The tank container with ladder and railing linkage according to claim 1, characterized in that, The connecting plate is provided with a first rotating shaft, a second rotating shaft and a third rotating shaft arranged in a triangle. The first rotating shaft is located above the second rotating shaft and the third rotating shaft, and the second rotating shaft and the third rotating shaft are distributed on both sides of the first rotating shaft. The first rotating shaft is used to rotatably connect the frame and the connecting plate, the second rotating shaft is used to rotatably connect the first connecting rod and the connecting plate, and the third rotating shaft is used to rotatably connect the second connecting rod and the connecting plate.

4. The tank container with ladder and railing linkage according to claim 3, characterized in that, The frame is provided with a support base, one end of the first rotating shaft is rotatably connected to the connecting plate, and the other end of the first rotating shaft is fixedly provided with an adjusting plate. The adjusting plate is connected to the support base and its vertical position is adjustable.

5. The tank container with ladder and railing linkage according to claim 1, characterized in that, The ladder assembly includes a support column, a handrail, and multiple steps. The support column is located between the top and bottom of the frame. The multiple steps are spaced apart along the height direction of the support column. Each step is rotatably connected to the support column. The handrail is rotatably connected to each step. The handrail and the support column are located on opposite sides of the step width direction. The handrail is provided with a connecting shaft, and the end of the first connecting rod away from the connecting plate is rotatably connected to the connecting shaft.

6. The tank container with ladder and railing linkage according to claim 5, characterized in that, The drive assembly includes a handle rotatably mounted on the frame, the handle being driven to the connecting shaft to manually drive the handrail and the plurality of pedals to rotate, while simultaneously moving the first link to cause the railing assembly to rotate accordingly.

7. The tank container with ladder and railing linkage according to claim 6, characterized in that, The drive assembly includes a transmission rod, one end of which is rotatably mounted on the frame, and the other end of which is rotatably connected to the connecting shaft. The handle can drive the transmission rod to rotate relative to the frame, thereby rotating the handrail and the plurality of pedals. At the same time, the first connecting rod is moved through the connecting shaft, causing the railing assembly to rotate accordingly.

8. The tank container with ladder and railing linkage according to claim 7, characterized in that, The drive assembly also includes an upper gear and a lower gear arranged vertically at intervals on the frame, and a transmission chain sleeved between the upper gear and the lower gear; The upper gear is rotatably mounted on the frame. The end of the transmission rod away from the connecting shaft is connected and fixed to the upper gear. The lower gear is rotatably mounted on the frame and located below the upper gear. One end of the handle is connected and fixed to the lower gear. The handle can drive the lower gear to rotate, thereby driving the upper gear and the transmission rod to rotate accordingly.

9. The tank container with linked ladder and railing as described in claim 8, characterized in that, It includes a first stop structure disposed between the lower gear and the frame, and is used to lock the relative rotation between the lower gear and the frame when the ladder assembly is fully extended or fully folded.

10. The tank container with ladder and railing linkage according to claim 5, characterized in that, The ladder assembly includes a locking structure disposed between the support column and the handrail, and is used to lock the relative movement between the handrail and the support column when the ladder assembly is fully folded.

11. The tank container with ladder and railing linkage according to claim 5, characterized in that, The ladder assembly includes a limiting structure disposed between the support column and the step, and is used to cause the step to abut against the support column when the ladder assembly is fully extended.

12. The tank container with ladder and railing linkage according to claim 1, characterized in that, The railing assembly includes a horizontal bar and a plurality of vertical bars, the plurality of vertical bars being arranged at intervals along the length of the horizontal bar, and the top of each vertical bar being rotatably connected to the horizontal bar. The frame is provided with a rotating seat and a rotating shaft rotatably mounted on the rotating seat. The bottom ends of each of the vertical rods are respectively connected to the rotating shaft. A connecting rod protrudes from one of the rotating shafts, and the connecting rod is rotatably connected to the end of the second connecting rod away from the connecting plate.

13. The tank container with ladder and railing linkage according to claim 12, characterized in that, The drive assembly includes a power component fixedly mounted on the frame. The power component is drively connected to the rotating shaft to drive the rotating shaft to rotate relative to the rotating seat, causing the plurality of vertical rods to rotate relative to the frame and the horizontal rod. At the same time, the second connecting rod is driven to move through the connecting rod, causing the climbing ladder assembly to rotate accordingly.

14. The tank container with linked ladder and railing as described in claim 13, characterized in that, The drive assembly further includes a drive gear and a driven gear, as well as a drive chain sleeved between the drive gear and the driven gear. The drive gear is connected to the power output shaft of the power component, and the driven gear is fixedly sleeved on the rotating shaft. The power component can drive the drive gear to rotate, thereby driving the driven gear to rotate, so that the rotating shaft can rotate relative to the rotating seat.

15. The tank container with linked ladder and railing as described in claim 14, characterized in that, It includes a second stop structure disposed between the driven gear and the drive chain, and is used to lock the relative movement between the driven gear and the drive chain when the railing assembly is fully extended or fully folded.

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