Reversible walkway and crane

Abstract

The application relates to the technical field of engineering machinery, and discloses a turnable pedestrian passageway and a crane. The turnable pedestrian passageway comprises a limiting block, a pedestrian plate and a locking mechanism. The pedestrian plate is rotatably connected to the limiting block to rotate and switch between a storage state and a use state. The locking mechanism comprises a locking piece, a track groove arranged on the pedestrian plate and a limiting groove arranged on the limiting block. The locking piece is fixedly inserted into the track groove and can slide along the track groove. When the pedestrian plate rotates to the storage state, the locking piece can slide along the track groove and be embedded into the limiting groove to lock the pedestrian plate. The turnable pedestrian passageway simplifies the operation complexity of the storage and opening processes, so that the pedestrian plate can be quickly and conveniently locked in the storage state and unlocked from the storage state.

Description

Technical Field

[0001] This application belongs to the field of engineering machinery technology, specifically relating to a reversible pedestrian walkway and a crane. Background Technology

[0002] Existing large mechanical equipment such as cranes and tunnel boring machines are usually equipped with walkways to facilitate the passage of workers or the maintenance of the equipment. In order to save space, the walkways in cranes are usually designed to be tiltable. When in use, the walkway can be laid flat for personnel to pass through, and when not in use, the walkway can be tilted so that the walkway is set vertically to save space.

[0003] Existing crane internal tiltable pedestrian walkway structures, such as Figures 1 to 4 As shown, the reversible pedestrian walkway structure includes a walkway plate, a latch plate, a first latch, and a second latch. The walkway plate and the latch plate are rotatably connected by the first latch, and the second latch is used to lock the walkway plate into a retracted state. When the walkway plate needs to be retracted, the second latch on the latch plate must first be removed, then the walkway plate must be rotated to a vertical position. Afterward, the second latch is inserted through the latch hole in the walkway plate into the walkway plate and the latch plate to lock them together. The existing reversible pedestrian walkway's rotation angle adjustment process is complex and inconvenient, and during crane operation, the latches are prone to detaching from the walkway, posing a risk of loss. Utility Model Content

[0004] The purpose of this application is to provide a reversible pedestrian walkway and a crane that enables the reversible pedestrian walkway to be locked at a specific angle quickly and conveniently.

[0005] To achieve the above objectives, this application provides a reversible pedestrian walkway, which includes: Limit block; A walkway, rotatably connected to a limiting block, allows for switching between a stowed state and a usable state; and The locking mechanism includes a locking member, a track groove disposed on the pedestrian board, and a limiting groove disposed on the limiting block. The locking member is disposed in the track groove and can slide along the track groove. The locking mechanism is configured such that when the pedestrian board is rotated to the retracted state, the locking member can slide along the track groove to be embedded in the limiting groove to lock the pedestrian board.

[0006] In some embodiments, the flip-up pedestrian walkway includes two limiting blocks and two locking mechanisms. The two locking mechanisms are respectively disposed on the two sides of the pedestrian panel. Each locking mechanism includes two mating plates that are parallel to each other on the side of the pedestrian panel. The surface of the mating plates is perpendicular to the rotation axis of the pedestrian panel. The two mating plates each have a track groove. The projections of the two track grooves in the stacking direction of the mating plates coincide with each other. The locking element is a locking rod inserted into the two track grooves. The limiting blocks are rotatably disposed between the two mating plates of the locking mechanism. The limiting groove is located on the top of the limiting block.

[0007] In some embodiments, the locking rod has stop portions at both ends, which are used to abut against the mating plate to limit the relative position of the locking rod and the mating plate in the extension direction of the locking rod; In some embodiments, the locking mechanism includes a flip shaft that extends along the rotation axis of the walkway and passes through two mating plates and a limiting block located between the two mating plates. The flip shaft is fixed in position relative to the limiting block and rotatable relative to the mating plates.

[0008] In some embodiments, the two ends of the flip shaft are provided with blocking portions, which are used to hold the mating plate to limit the relative position of the flip shaft and the mating plate in the axial direction.

[0009] In some embodiments, the reversible pedestrian walkway is provided with a stop mechanism to restrict the pedestrian walkway from continuing to rotate when it rotates from the retracted state to the usable state.

[0010] In some embodiments, the stopping mechanism includes a first stop and a second stop. When the walkway rotates from the stored state to the used state, the first stop and the second stop abut against each other to limit the walkway from continuing to rotate.

[0011] In some embodiments, the first stop is connected to the limiting block, and the second stop is connected to the mating plate; In some embodiments, the stop mechanism is configured to adjust the position of at least one of the first stop and the second stop to adjust the angle of the walkway when it is in use.

[0012] In some embodiments, the first stop is a support leg connected to the limiting block, and the length of the support leg extending out of the limiting block is adjustable. The second stop is a mating block disposed between two mating plates. When the pedestrian walkway is rotated to the use state, the side of the support leg away from the limiting block abuts against the mating block to limit the pedestrian walkway from continuing to rotate.

[0013] In some embodiments, the track groove includes a receiving section, a bending section, and a locking section that are bent and connected in sequence. The receiving section and the locking section are parallel to each other. When the pedestrian walkway is rotated to the receiving position, the projection of the limiting groove on the pedestrian walkway is located in the locking section.

[0014] In some embodiments, the walkway includes a connected body portion and support legs, with the support legs positioned below the body portion when the walkway is rotated to the use position.

[0015] In some embodiments, the walkway includes two support legs disposed on opposite sides of the walkway body, and the distance between the two support legs is parallel to the rotation axis of the walkway. In some implementations, the track groove is located on the outrigger.

[0016] A second aspect of this application provides a crane, which includes a crane body and the aforementioned reversible pedestrian walkway.

[0017] Through the above technical solution, the flip-up pedestrian walkway provided in this application can be folded up and stored by first rotating the walkway panel along the flip axis to the storage state, and then sliding the locking member until the locking member is embedded in the limiting groove, so that the limiting structure and the mating structure are relatively locked under the action of the locking member, thereby locking the rotation angle between the flip axis and the walkway panel. When the flip-up pedestrian walkway needs to be used, the locking member can be slid up until the limiting part of the locking member disengages from the limiting groove, allowing the walkway panel to rotate freely relative to the flip axis, and then the walkway panel can be rotated to the use state for personnel passage.

[0018] The flip-up pedestrian walkway provided in the application does not require repeated disassembly and installation of the latches when locking and unlocking. The locking mechanism can be adjusted by simply sliding the locking piece along the track groove to lock and unlock the rotation angle and usage status of the pedestrian walkway. This simplifies the operation complexity of storing and opening the flip-up pedestrian walkway, allowing it to be quickly and easily locked in and unlocked from the stored state. At the same time, it avoids the problem of the locking latches of the flip-up pedestrian walkway falling off or being lost during use, which would prevent the pedestrian walkway from being stored.

[0019] Other features and advantages of the embodiments of this application will be described in detail in the following detailed description section. Attached Figure Description

[0020] The accompanying drawings are provided to further illustrate the embodiments of this application and form part of the specification. They are used together with the following detailed description to explain the embodiments of this application, but do not constitute a limitation on the embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without any inventive effort. In the drawings: Figure 1 This is a schematic diagram of a reversible pedestrian walkway in the prior art. Figure 2 for Figure 1 The diagram shown illustrates the structure of the reversible pedestrian walkway when it is in use. Figure 3 for Figure 1 The diagram shows the structure of the retractable pedestrian walkway in its stowed state. Figure 4 for Figure 3 A partial cross-sectional view of the reversible pedestrian walkway is shown. Figure 5 A three-dimensional structural diagram of a reversible pedestrian walkway provided in this application; Figure 6 for Figure 5 A top view of the reversible pedestrian walkway is shown. Figure 7 for Figure 5 The diagram shows a cross-sectional structure of the reversible pedestrian walkway along line AA. Figure 8 for Figure 7 A schematic diagram of the cross-sectional structure of the reversible pedestrian walkway along line BB; Figure 9 for Figure 7 A schematic diagram of the cross-sectional structure of the reversible pedestrian walkway along line CC; Figure 10 for Figure 5 The diagram shown illustrates the structure of the reversible pedestrian walkway when it is in use. Figure 11 for Figure 5 The diagram shows the structure of the retractable pedestrian walkway in its stowed state.

[0021] Explanation of reference numerals in the attached figures 1- Reversible pedestrian walkway; 10- Reversing shaft; 20- Pedestrian walkway; 30- Locking mechanism; 40- Stopping mechanism; 11-Limit block; 12-Blocking part; 21-Plate part; 22-Support leg part; 221-Matching plate; 222-Connecting plate; 31-Trajectory groove; 32-Limit groove; 33-Locking rod; 41-Support foot; 42-Matching block; 311 - Storage section; 312 - Bending section; 313 - Locking section; 331 - Stop section; 1'-Reversible pedestrian walkway; 10'-Walkway plate; 11'-First pin; 12'-Second pin; 13'-Pin plate; 14'-Pin hole. Detailed Implementation

[0022] The specific embodiments of this application will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this application.

[0023] It should be understood that the reversible pedestrian walkway provided in this application can be applied inside large construction machinery such as cranes, tunnel boring machines, and concrete mixing plants, and is configured to allow personnel to pass through and stand inside the construction machinery for maintenance, etc. Those skilled in the art will understand that the above are the application scenarios for the reversible pedestrian walkway provided in this application, and the reversible pedestrian walkway of this application is not limited to the above application scenarios.

[0024] To better illustrate the technical effects of this application, the prior art is now described for your reference. Figures 1 to 4 , Figure 1 This is a schematic diagram of a reversible pedestrian walkway in the prior art. Figure 2 for Figure 1 The diagram shown illustrates the structure of the reversible pedestrian walkway when it is in use. Figure 3 for Figure 1 The diagram shows the structure of the retractable pedestrian walkway in its stowed state. Figure 4 for Figure 3 The diagram shows a partial cross-sectional view of the reversible pedestrian walkway.

[0025] The existing reversible pedestrian walkway 1' structure inside large construction machinery typically includes a walkway 10', a latch plate 13', a first latch 11', and a second latch 12'. The latch plate 13' can be connected to the main body of the construction machinery. The walkway 10' and the latch plate 13' are rotatably connected via the first latch 11', allowing the walkway 10' to rotate between a used state and a retracted state relative to the latch plate 13'. When personnel need to pass through or stop, the walkway 10' can be rotated to the used state; when not in use, the walkway 10' can be rotated to the retracted state, allowing it to conform to the main body of the construction machinery and reducing its footprint.

[0026] The second pin 12' is used to lock the walkway 10' into a retracted state. When the walkway 10' needs to be retracted, first remove the second pin 12' from the pin plate 13', then rotate the walkway 10' to a vertical position. Next, insert the second pin 12' through the pin hole 14' into the walkway 10' and the pin plate 13' to lock them together. When the walkway 10' needs to be unlocked from the retracted state, first remove the second pin 12', then rotate the walkway 10' to the correct position. At this time, the second pin 12' can be inserted into the pin hole 14' to prevent it from being lost.

[0027] As can be seen from the above process, the existing reversible pedestrian walkway 1' requires multiple installations and removals of the second pin 12' to lock and unlock the pedestrian platform 10'. However, in actual operation, the pedestrian platform 10' has a significant weight, and the second pin 12' needs to be tightly connected to both the pedestrian platform 10' and the pin plate 13' to achieve a good locking effect. The installation and removal of the second pin 12' requires considerable force, making the adjustment of the rotation angle of the existing reversible pedestrian walkway 1' complex and inconvenient. Furthermore, the vibrations generated by large construction machinery such as cranes and tunnel boring machines during operation can easily cause the second pin 12' to detach from the pedestrian platform 10', posing a risk of pin loss.

[0028] To address the above technical issues, this application provides a reversible pedestrian walkway 1. Please refer to [link / reference]. Figures 5 to 7 , Figure 5 A three-dimensional structural diagram of a reversible pedestrian walkway provided in this application; Figure 6 for Figure 5 A top view of the reversible pedestrian walkway is shown. Figure 7 for Figure 5 The diagram shows a cross-sectional view of the reversible pedestrian walkway along line AA. The reversible pedestrian walkway 1 provided in this application includes a limiting block 11, a pedestrian platform 20, and a locking mechanism 30. The pedestrian platform 20 is rotatably connected to the limiting block 11 to switch between a stowed state and a usable state. The locking mechanism 30 includes a locking element, a track groove 31 disposed on the pedestrian platform 20, and a limiting groove 32 disposed on the limiting block 11. The locking element is disposed within the track groove 31 and can slide along the track groove 31. The locking mechanism 30 is configured such that when the pedestrian platform 20 is rotated to the stowed state, the locking element can slide along the track groove 31 to embed into the limiting groove 32, thereby locking the pedestrian platform 20.

[0029] It should be noted that when the pedestrian walkway 20 in this application is in the stored state, the surface of the pedestrian walkway 20 can be set vertically or approximately vertically (at a certain angle to the vertical direction), so that the body of the pedestrian walkway 20 can fit against the body of the process machinery equipment, thereby reducing the floor space occupied by the pedestrian walkway 20; when the pedestrian walkway 20 in this application is in the use state, the surface of the pedestrian walkway 20 can be set horizontally or approximately horizontally (at a certain angle to the horizontal direction), so that the pedestrian walkway 20 can provide stable support for the personnel above the pedestrian walkway 20, allowing the personnel to stay or pass on the pedestrian walkway 20.

[0030] like Figure 5 and Figure 6The reversible pedestrian walkway 1 provided in this application has a pedestrian board 20 with a rectangular surface. One rectangular side of the rectangular surface is rotatably connected to a flip axis 10, allowing the pedestrian board 20 to rotate around the flip axis 10. In the following text, for ease of description and understanding, the side of the pedestrian board 20 connected to the flip axis 10 is referred to as the "rear" side of the pedestrian board 20, the side of the pedestrian board 20 away from the flip axis 10 is referred to as the "front" side of the pedestrian board 20, and correspondingly, the two sides of the pedestrian board 20 adjacent to the flip axis 10 are referred to as the "sides" of the pedestrian board 20.

[0031] It is understood that the shape of the pedestrian walkway 1 and the pedestrian slab 20 in this application is not limited to a rectangle, but can also be other regular or irregular shapes such as polygons and ellipses. In actual projects, the surface area and shape of the pedestrian slab 20 can be adapted to the location of the rotating pedestrian walkway 1. It is understood that the above orientation does not represent a limitation on the placement of the pedestrian walkway slab in this application, and the position of the pedestrian walkway slab can be reasonably set as needed in actual projects.

[0032] The reversible pedestrian walkway 1 of this application has a pedestrian platform 20 rotatably connected to a limiting block 11, which can rotate and switch between a storage state and a use state. This allows the reversible pedestrian walkway 1 to rotate the pedestrian platform 20 to the use state for people to pass through or stay when in use, and to flip it to the storage state to reduce the floor space when not in use.

[0033] like Figure 5 and Figure 6 In some embodiments, the flip-up pedestrian walkway 1 further includes a flip shaft 10, which is connected to a limiting block 11. The rear side of the pedestrian board 20 includes a rotating connection portion, through which part or all of the flip shaft 10 passes. The rotating connection portion can rotate relative to the flip shaft 10, thereby driving the entire pedestrian board 20 to rotate relative to the limiting block 11.

[0034] In this embodiment, the reversible pedestrian walkway 1 has a reversible shaft 10 that can be fixed to construction machinery equipment to secure the pedestrian walkway 20 to the area where the equipment needs to pass. The construction machinery equipment can be, but is not limited to, cranes, tunnel boring machines, tower cranes, etc. It should be noted that the aforementioned fixing refers to the fixing of the relative position between the reversible shaft 10 and the equipment body of the construction machinery equipment, and should not be construed as a limitation on their connection relationship. Specifically, the reversible shaft 10 can be detachably connected to the construction machinery equipment, or the reversible shaft 10 can be connected to the construction machinery equipment using connectors, auxiliary components, etc.

[0035] In some embodiments, the reversible pedestrian walkway 20 includes a reversible shaft 10 passing through the swivel connection portion, with one or both ends of the reversible shaft 10 extending out of the swivel connection portion and connecting to the body of the engineering machinery equipment. For some embodiments, please refer to... Figure 8 and Figure 9 , Figure 8 for Figure 7 A schematic diagram of the cross-sectional structure of the reversible pedestrian walkway along line BB; Figure 9 for Figure 7 The diagram shows a cross-sectional view of the reversible pedestrian walkway along line CC. The reversible pedestrian walkway 20 includes two reversible shafts 10 passing through a rotating connecting portion. The two reversible shafts 10 are respectively disposed on both sides of the pedestrian walkway 20. Parts of the reversible shafts 10 extend into and are rotatably connected to the rotating connecting portion, while other parts extend out of the pedestrian walkway 20. At least one of the two reversible shafts 10 is connected to the body of the engineering machinery equipment. Preferably, in this embodiment, the reversible shafts 10 and the rotating connecting portion each have a limiting structure, thereby limiting the relative position between the reversible shafts 10 and the pedestrian walkway 20 along the axial direction of the reversible shaft 10.

[0036] It is understood that the structure and connection method of the flip shaft 10 and the pedestrian plate 20 in this application are not limited to the examples above. The flip shaft 10 and the pedestrian plate 20 may have other structures and connection methods. Any method that enables the pedestrian plate 20 and the flip shaft 10 to be rotatably connected should fall within the protection scope of this application.

[0037] The flip-up pedestrian walkway 1 of this application has a locking mechanism 30 including a locking member, a track groove 31 disposed on the pedestrian plate 20, and a limiting groove 32 disposed on the limiting block 11. The locking member is disposed in the track groove 31 and can slide along the track groove 31.

[0038] It should be noted that the aforementioned "track groove 31 provided on the pedestrian walkway 20" should be understood as follows: the track groove 31 can be a blind groove or through groove located on the pedestrian walkway 20; it can also be a blind groove or through groove located on components such as the plate or block, wherein the plate or block is connected to the pedestrian walkway 20. It should also be noted that the aforementioned "locking member is provided in the track groove 31 and can slide along the track groove 31" should be understood as follows: at least a portion of the locking member is located within the track groove 31 and can slide along the trajectory extension direction of the track groove 31. In some embodiments, the locking member includes a sliding part and a locking part. The sliding part can slide within the track groove 31, and the locking part is located outside the track groove 31 and can extend into the limiting groove 32 to lock the pedestrian walkway 20 and the limiting block 11.

[0039] When the reversible pedestrian walkway 1 of this application is folded up for storage, the pedestrian panel 20 can first be rotated and stored along the limiting block 11, and then the locking member can be slid until it is embedded in the limiting groove 32. This allows the limiting structure and the mating structure to be locked relative to each other under the action of the locking member, thereby locking the rotation angle between the limiting block 11 and the pedestrian panel 20. When the reversible pedestrian walkway 1 needs to be used, the locking member can first be slid until the limiting part of the locking member disengages from the limiting groove 32, allowing the pedestrian panel 20 to rotate freely relative to the limiting block 11. Then, the pedestrian panel 20 can be rotated to the use state for pedestrian passage.

[0040] The flip-up pedestrian walkway 1 provided in the application does not require repeated disassembly and installation of the latch when locking and unlocking. The locking member can be slid along the track groove to lock and unlock the rotation angle and usage status between the pedestrian panels 20. This simplifies the operation complexity of the flip-up pedestrian walkway 1 in the storage and opening process, and makes it easy to lock the flip-up pedestrian walkway 1 in the storage state and unlock it from the storage state. At the same time, it avoids the problem of the locking latch of the flip-up pedestrian walkway 1 falling off or being lost during use, which would prevent the pedestrian walkway from being stored.

[0041] Please continue reading. Figures 5 to 9 In some embodiments, the flip-up pedestrian walkway 1 includes two limiting blocks and two locking mechanisms 30. The two locking mechanisms 30 are respectively provided on the two sides of the pedestrian board 20. Each locking mechanism 30 includes two mating plates 221 that are parallel to each other on the side of the pedestrian board 20. The surface of the mating plate 221 is perpendicular to the axial direction of the flipping shaft 10. The two mating plates 221 each have a track groove 31. The projections of the two track grooves 31 in the stacking direction of the mating plates 221 coincide with each other. The locking element is a locking rod 33 inserted in the two track grooves 31. The limiting block 11 is rotatably disposed between the two mating plates 221 of the locking mechanism 30. The limiting groove 32 is located on the top of the limiting block 11.

[0042] In this embodiment, the reversible pedestrian walkway 1 includes two locking mechanisms 30, which are respectively disposed on the two sides of the pedestrian walkway 20, so that both sides of the pedestrian walkway 20 can be locked by the locking mechanisms 30, and the force on the pedestrian walkway 20 is more balanced. The two sides mentioned above should be understood as the two sides of the pedestrian walkway 20 adjacent to the flip axis 10, which are arranged opposite each other, and the distance between the two sides is parallel to the rotation axis of the pedestrian walkway.

[0043] In some embodiments, the two locking mechanisms 30 may be respectively disposed on / connected to the two sides of the pedestrian walkway 20; in some embodiments, a part of the locking mechanism 30 is disposed on / connected to the side of the pedestrian walkway 20, and the other part of the locking mechanism 30 is connected to the limiting block.

[0044] In some implementations, such as Figures 5 to 9 Two limiting blocks 11 are provided corresponding to two locking mechanisms 30. The limiting blocks 11 are located between the two mating plates 221 of the locking mechanism 30, so that the locking rod 33 can be more stably set in the track groove 31. When the pedestrian walkway 20 is rotated to the retracted state, the locking rod 33 slides along the track groove 31, so that the part of the locking rod 33 located between the two mating plates 221 naturally enters the limiting groove 32 of the limiting block 11, thereby easily locking the pedestrian walkway 20.

[0045] In some embodiments, the locking lever 33 has stop portions 331 at both ends. The stop portions 331 are used to abut against the mating plate 221 to limit the relative position of the locking lever 33 and the mating plate 221 in the extending direction of the locking lever 33. In this embodiment, the stop portions 331 limit the relative position between the locking lever 33 and the mating plate 221 in the extending direction of the locking lever 33, thereby preventing the locking lever 33 from slipping or falling out of the track groove 31.

[0046] In some embodiments, the locking mechanism 30 includes a flip shaft 10 that extends along the rotation axis of the walkway 20 and passes through two mating plates 221 and a limiting block 11 located between the two mating plates 221. The flip shaft 10 is fixed in position relative to the limiting block 11 and rotatable relative to the mating plates 221, so that the mating plates 221 can rotate relative to the flip shaft 10, thereby driving the walkway 20 to rotate relative to the limiting block 11.

[0047] In some embodiments, the two ends of the tilting shaft 10 are provided with blocking portions 12, which are used to abut against the mating plate 221 to limit the relative position of the tilting shaft 10 and the mating plate 221 in the axial direction. In this embodiment, the blocking portions 12 limit the relative position between the tilting shaft 10 and the mating plate 221 along the axial direction of the tilting shaft 10, thereby preventing the tilting shaft 10 from disengaging from the walkway 20 during the operation of the construction machinery.

[0048] In some embodiments, the reversible pedestrian walkway 1 is provided with a stop mechanism 40, which restricts the pedestrian walkway 20 from continuing to rotate when it rotates from the retracted state to the usable state. It is understood that the stop mechanism 40 can limit the angle of the flip axis 10 when it is in the usable state. In some embodiments, the stop mechanism 40 includes a first stop and a second stop; when the pedestrian walkway 20 rotates from the retracted state to the usable state, the first stop and the second stop abut against each other to restrict the pedestrian walkway 20 from continuing to rotate. In some embodiments, the first stop is connected to the limiting block 11, and the second stop is connected to the mating plate 221.

[0049] refer to Figure 10 , Figure 10 for Figure 5The diagram shows the structure of the reversible pedestrian walkway in its use state. In some embodiments, the stop mechanism 40 is configured to adjust the position of at least one of the first stop and the second stop to adjust the angle of the walkway 20 in its use state. It is understood that, in this embodiment, the walkway 20 can achieve fine-tuning of its surface angle in its use state by adjusting the stop mechanism 40, allowing the walkway 20 to better adapt to the application environment of engineering machinery equipment.

[0050] In some embodiments, the first stop is a support leg 41 connected to the limiting block 11, and the length of the support leg 41 extending out of the limiting block 11 is adjustable. The second stop is a mating block 42 disposed between two mating plates 221. When the pedestrian walkway 20 is rotated to the use state, the support leg 41 abuts against the mating block 42 on the side away from the limiting block 11 to limit the pedestrian walkway 20 from continuing to rotate.

[0051] like Figure 10 In this embodiment, the mating block 42 and the support leg 41 are disposed between two mating plates 221. The support leg 41 is connected to the front side of the limiting block 11, and the mating block 42 is connected to the mating plate 221. The front side of the support leg 41 is used to abut against the mating block 42 to limit the angle of the walkway 20 when it is in use. The support leg 41 can adjust its length extending beyond the limiting block 11, thereby realizing fine adjustment of the angle of the walkway 20 surface when it is in use, so that the walkway 20 can better adapt to the application environment of engineering machinery. The adjustable support leg 41 structure is a conventional structure in the art and will not be described in detail here.

[0052] In some embodiments, the pedestrian walkway 20 further includes a connector, through which the two mating plates 221 are connected. For example... Figure 6 As shown, in some specific embodiments, the connector is a connecting plate 222 structure connected between two mating plates 221. In some embodiments, the mating block 42 can also be connected to the connecting plate 222. When the pedestrian walkway 20 is in use, the mating block 42 is located at the bottom of the connecting plate 222. With this configuration, the mating block 42 can also cooperate with the support leg 41 to limit the rotation angle of the pedestrian walkway 20.

[0053] Please see Figure 11 , Figure 11 for Figure 5 The diagram shows the structure of the retractable pedestrian walkway in its retracted state. In some embodiments, the track groove 31 includes a retractable section 311, a bent section 312, and a locking section 313 that are bent and connected in sequence. The retractable section 311 and the locking section 313 are parallel to each other. When the pedestrian walkway 20 is rotated to the retracted state, the projection of the limiting groove 32 on the pedestrian walkway 20 is located on the locking section 313.

[0054] like Figure 11In this embodiment, the track groove 31 is "crutch-shaped." When the locking mechanism 30 is in the unlocked state, the locking rod 33 can be positioned in the storage section 311. When the locking mechanism 30 needs to be locked, the locking rod 33 can slide along the track groove 31 from the storage section 311 and the bending section 312 to the locking section 313. Under the action of gravity, the locking rod 33 slides downward in the locking section 313 until the middle part of the locking rod 33 extends into the limiting groove 32, thereby locking the pedestrian walkway 20. When the locking mechanism 30 is unlocked, the locking rod 33 can be moved upward, allowing it to slide from the locking section 313 and the bending section 312 to the storage section 311. At this time, the locking rod 33 can be stably positioned in the storage section 311 under its own gravity, allowing the pedestrian walkway 20 to be rotated and put into use for pedestrian passage.

[0055] refer to Figures 5 to 7 In some embodiments, the walkway 20 includes a connected platform body 21 and support legs 22. When the walkway 20 is rotated to the use position, the support legs 22 are located below the platform body 21. It is understood that the support legs 22 are provided in this embodiment to improve the support strength and stability of the walkway 20 for personnel. When the walkway 20 is rotated to the use position, the support legs 22 can provide support to the platform body 21 from below, allowing the walkway 20 to be stably in the use position.

[0056] Specifically, in some embodiments, the main body of the engineering machinery equipment may be provided with a mounting platform structure. When the walkway 20 is rotated to the use state, the bottom surface of the outrigger 22 abuts against the mounting platform structure to provide stable support for the walkway 20. The mounting platform structure used to abut the outrigger 22 in the engineering machinery equipment is a conventional structure in the art and will not be described in detail here.

[0057] In some embodiments, the pedestrian walkway 20 includes two support legs 22, which are disposed on opposite sides of the walkway body, with the distance between the two support legs 22 parallel to the rotation axis of the pedestrian walkway 20; thus, the support effect of the support legs 22 on the pedestrian walkway 20 is more balanced. In some embodiments, a track groove 31 is disposed on the support leg 22; thereby simplifying the structure of the reversible pedestrian walkway 1 and reducing the manufacturing cost of the reversible pedestrian walkway 1.

[0058] Please see Figures 5 to 11In one specific embodiment shown in the accompanying drawings, the pedestrian walkway 20 includes a rectangular body portion 21, and the rear side of the body portion 21 is rotatably connected to the limiting block 11. Support legs 22 are respectively provided on the left and right sides of the body portion 21. Each support leg 22 includes two parallel mating plates 221. The surface of the mating plates 221 is perpendicular to the surface of the body portion 21. The mating plates 221 extend along the front-rear direction of the body portion 21 and extend downwards to form the support leg 22. Each of the two mating plates 221 has a track groove 31 structure.

[0059] The second aspect of this application provides a crane, which includes a crane body and the aforementioned reversible pedestrian walkway 1. The crane provided by this application allows the reversible pedestrian walkway 1 to be locked and unlocked in its folded and stowed state without requiring repeated disassembly and installation of the latch. The locking mechanism can be slid along the track groove to achieve the rotation angle and usage state of the walkway panels 20. This simplifies the operational complexity of the reversible pedestrian walkway 1's folding and unfolding process, enabling it to be quickly and easily locked in and unlocked from its stowed state. Furthermore, it avoids the problem of the reversible pedestrian walkway 1's locking latches falling off or being lost during use, thus preventing the walkway from being folded.

[0060] In the description of this application, it should be understood that 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. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0061] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between components; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0062] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0063] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A reversible pedestrian walkway, characterized in that, The reversible pedestrian walkway (1) includes: Limiting block (11); A pedestrian walkway (20), rotatably connected to the limiting block (11), for rotating and switching between a stored state and a used state; and The locking mechanism (30) includes a locking member, a track groove (31) disposed on the pedestrian board (20), and a limiting groove (32) disposed on the limiting block (11). The locking member is disposed in the track groove (31) and slides along the track groove (31). The locking mechanism (30) is configured such that when the pedestrian board (20) is rotated to the storage state, the locking member can slide along the track groove (31) to be embedded in the limiting groove (32) to lock the pedestrian board (20).

2. The reversible pedestrian walkway according to claim 1, characterized in that, The reversible pedestrian walkway (1) includes two limiting blocks (11) and two locking mechanisms (30). The two locking mechanisms (30) are respectively provided on the two sides of the pedestrian board (20). Each locking mechanism (30) includes two mating plates (221) arranged parallel to each other on the side of the pedestrian board (20). The surface of the mating plate (221) is perpendicular to the rotation axis of the pedestrian board (20). The two mating plates (221) respectively have the track groove (31). The projections of the two track grooves (31) on the stacking direction of the mating plates (221) coincide with each other. The locking element is a locking rod (33) inserted in the two track grooves (31). The limiting block (11) is rotatably disposed between the two mating plates (221) of the locking mechanism (30). The limiting groove (32) is located on the top of the limiting block (11).

3. The reversible pedestrian walkway according to claim 2, characterized in that, The locking rod (33) has stop portions (331) at both ends, the stop portions (331) being used to abut against the mating plate (221) to limit the relative position of the locking rod (33) and the mating plate (221) in the extension direction of the locking rod (33); and / or The locking mechanism (30) includes a flip shaft (10) that extends along the rotation axis of the walkway (20) and passes through the two mating plates (221) and the limiting block (11) located between the two mating plates (221). The flip shaft (10) is fixed in position relative to the limiting block (11) and rotatable relative to the mating plates (221).

4. The reversible pedestrian walkway according to claim 2, characterized in that, The reversible pedestrian walkway (1) is provided with a stop mechanism (40), which is used to restrict the pedestrian walkway (20) from continuing to rotate when the pedestrian walkway (20) rotates from the storage state to the use state.

5. The reversible pedestrian walkway according to claim 4, characterized in that, The stopping mechanism (40) includes a first stop and a second stop. When the pedestrian walkway (20) rotates from the stored state to the used state, the first stop and the second stop abut against each other to restrict the pedestrian walkway (20) from continuing to rotate. The first stop is connected to the limiting block (11), and the second stop is connected to the mating plate (221); and / or The stop mechanism (40) is configured to adjust the position of at least one of the first stop and the second stop to adjust the angle of the pedestrian walkway (20) when it is in use.

6. The reversible pedestrian walkway according to claim 5, characterized in that, The first stop is a support leg (41) connected to the limiting block (11). The length of the support leg (41) extending out of the limiting block (11) is adjustable. The second stop is a mating block (42) disposed between the two mating plates (221). When the pedestrian walkway (20) is rotated to the use state, the support leg (41) abuts against the mating block (42) on the side away from the limiting block (11) to restrict the pedestrian walkway (20) from continuing to rotate.

7. The reversible pedestrian walkway according to any one of claims 1-6, characterized in that, The track groove (31) includes a storage section (311), a bending section (312) and a locking section (313) that are bent and connected in sequence. The storage section (311) and the locking section (313) are parallel to each other. When the pedestrian board (20) is rotated to the storage position, the projection of the limiting groove (32) on the pedestrian board (20) is located on the locking section (313).

8. The reversible pedestrian walkway according to any one of claims 1-6, characterized in that, The pedestrian walkway (20) includes a connected body part (21) and a support leg part (22). When the pedestrian walkway (20) is rotated to the use state, the support leg part (22) is located below the body part (21).

9. The reversible pedestrian walkway according to claim 8, characterized in that, The pedestrian walkway (20) includes two support legs (22) disposed on opposite sides of the walkway body, with the distance between the two support legs (22) parallel to the rotation axis of the pedestrian walkway (20); and / or The track groove (31) is provided on the outrigger (22).

10. A crane, characterized in that, The crane includes a crane body and a reversible pedestrian walkway (1) according to any one of claims 1-9.

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