A light weight trestle with a basket

Abstract

This utility model relates to a lightweight trestle with a suspended platform, comprising: a telescopic bridge body, a telescopic drive device, and a suspended platform device; the telescopic bridge body includes a fixed arm and a telescopic arm movably mounted on the fixed arm; the telescopic drive device is mounted on the telescopic bridge body and includes a telescopic cylinder and a wire pulley assembly; the suspended platform device is movably mounted on the telescopic bridge body for lifting operations; wherein, the telescopic cylinder is connected to the telescopic arm via the wire pulley assembly to drive the telescopic arm to move. Compared with the prior art, the lightweight trestle of this utility model drives the telescopic arm to extend and retract using a telescopic cylinder and a wire pulley assembly, effectively reducing the overall weight while maintaining the same stroke and material utilization rate, and achieving a larger telescopic distance and speed; furthermore, by using the suspended platform device for lifting operations, it replaces the lifting module in related technologies, further reducing weight and improving transportation convenience while meeting the requirements for suspended boarding.

Description

Technical Field

[0001] This utility model relates to the field of bridge structure technology, and in particular to a lightweight trestle bridge with a suspended basket. Background Technology

[0002] Modern ship piers have transcended their traditional role as mere "transitional ramps," evolving into complex electromechanical-hydraulic systems integrating multiple functions such as pedestrian transport, logistics loading and unloading, emergency evacuation, and six-degree-of-freedom wave compensation. However, the continuous expansion of functional modularization and deep system integration has directly led to an exponential increase in structural mass.

[0003] In related technologies, trestle systems face a dual tension between performance improvement and increased weight, with the "capacity-weight" contradiction becoming a constraint on their further development and application. Therefore, re-examining their lightweight design paradigms and quality control strategies has become a systemic issue that urgently needs to be addressed in both academic and engineering fields.

[0004] In recent years, the installed capacity of offshore wind power has increased significantly, leading to a large demand for subsequent maintenance. Furthermore, due to the favorable sea conditions in nearshore areas, lightweight piers are more suitable considering cost and convenience factors.

[0005] Therefore, it is necessary to develop a new type of trestle to improve some of the problems existing in the related technologies. Utility Model Content

[0006] The purpose of this invention is to provide a lightweight trestle that is more convenient when using ships to approach and maintain wind power equipment.

[0007] The objective of this utility model can be achieved through the following technical solutions:

[0008] This utility model provides a lightweight trestle with a suspended platform, comprising: a telescopic bridge body, a telescopic drive device, and a suspended platform device; the telescopic bridge body includes a fixed arm and a telescopic arm movably disposed on the fixed arm; the telescopic drive device is disposed on the telescopic bridge body and includes a telescopic cylinder and a wire pulley assembly; the suspended platform device is movably disposed on the telescopic bridge body for lifting operations; wherein, the telescopic cylinder is connected to the telescopic arm through the wire pulley assembly to drive the telescopic arm to move.

[0009] Furthermore, the wire pulley assembly includes: a drive wire, a drive fixed pulley, and a drive seat; the drive seat is connected to the telescopic cylinder, the drive fixed pulley is disposed at one end of the fixed arm, one end of the drive wire is connected to the drive seat, and the other end is connected to the telescopic arm after being turned by the drive fixed pulley.

[0010] Furthermore, the wire pulley assembly also includes an auxiliary pulley group, through which the driving wire between the driving fixed pulley and the driving seat passes; the auxiliary pulley group includes an auxiliary movable pulley and an auxiliary fixed pulley, with the auxiliary movable pulley disposed on the driving seat.

[0011] Furthermore, at least two sets of the auxiliary pulley groups are arranged in parallel.

[0012] Furthermore, the two drive pulleys are respectively disposed at both ends of the fixed arm, and one end of the two drive steel wires is connected to the drive seat, and the other end is respectively connected to the telescopic arm after turning through the two drive pulleys from both sides.

[0013] Furthermore, the lightweight trestle also includes a suspended platform drive device, which includes a drive frame and a suspended platform winch. The drive frame is fitted onto the telescopic bridge body via guide wheels, and the two suspended platform winches are respectively located at both ends of the telescopic bridge body and connected to the drive frame via steel wires.

[0014] Furthermore, one side of the top of the suspended platform is hinged to the drive frame, and the other side is connected to the drive frame via a first swing cylinder.

[0015] Furthermore, the suspended platform device includes a suspended platform cylinder, a first housing, and a second housing; the second housing is slidably fitted onto the first housing in the vertical direction, and the suspended platform cylinder is connected to the top of the first housing and the bottom of the second housing respectively.

[0016] Furthermore, the suspended platform device also includes a suspension beam and a second swing cylinder; one side of the top of the first housing is hinged to the suspension beam, and the other side is connected to the suspension beam through the second swing cylinder.

[0017] Furthermore, the lightweight trestle also includes a trestle base device for connecting to the ship's deck; the trestle base device includes a base, a slewing device, and a pitch cylinder; the slewing device is mounted on the base, and the telescopic bridge body and the slewing device are connected at one point and at the other point through the pitch cylinder.

[0018] Compared with the prior art, the lightweight trestle bridge with a suspended basket device provided by this utility model has the following beneficial effects:

[0019] 1. The lightweight trestle in this utility model drives the telescopic arm to extend and retract through a telescopic cylinder and a steel wire pulley assembly. Under the same stroke and material utilization rate, it effectively reduces the overall weight and achieves a larger telescopic distance and speed. Furthermore, the lifting operation is carried out through a suspended basket device, which replaces the lifting module in related technologies. While meeting the needs of hovering and boarding, it further reduces the weight and improves the convenience of transportation.

[0020] 2. In this utility model, the combination of the driving fixed pulley, the auxiliary fixed pulley and the auxiliary movable pulley forms a pulley structure. The driving steel wire between the driving fixed pulley and the driving seat is wound around the auxiliary pulley group. The extension speed and extension distance of the telescopic arm are improved by the winding of the steel wire.

[0021] 3. In this utility model, two sets of auxiliary pulleys are arranged in parallel, specifically, the auxiliary fixed pulleys are parallel to each other and the auxiliary movable pulleys are parallel to each other. The driving wire winds around one set of auxiliary pulleys and then around the other set of auxiliary pulleys, which further improves the telescopic arm's telescopic speed and telescopic distance.

[0022] 4. This utility model uses two drive pulleys respectively set at both ends of the fixed arm, and two drive steel wires are connected to the tail end of the telescopic arm after passing around the drive pulleys from both sides, so as to realize the reliable bidirectional movement of the telescopic arm.

[0023] 5. This utility model sets up basket winches at both ends of the telescopic bridge body, specifically at the tail end of the fixed arm and the front end of the telescopic arm. The frame is driven by a steel wire to move on the telescopic bridge body, realizing bidirectional movement of the basket device. When one basket winch drives the basket, the other releases synchronously, which facilitates transportation operations.

[0024] 6. In this utility model, the suspended basket device is hinged to one side of the drive frame, and the other side is driven to swing by the extension and retraction of the first swing cylinder, so that the suspended basket can remain vertical when the telescopic bridge body is pitching and swinging, thereby improving the safety of transportation operations.

[0025] 7. The suspended basket device in this utility model connects the suspended basket box to the upper suspended beam through a second swing cylinder. The second swing cylinder can compensate for the offset when the ship rolls, keep the suspended basket vertical, and effectively improve the stability of the suspended basket device. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the lightweight trestle bridge in an embodiment of this utility model;

[0027] Figure 2 This is a schematic diagram of the dual-view structure of the fixed arm and telescopic drive device in the embodiment of this utility model, showing the front and side views.

[0028] Figure 3 This is a schematic diagram of the structure of the suspended basket drive device and the suspended basket device in the embodiments of this utility model;

[0029] Figure 4 This is a schematic diagram of the drive frame and ceiling structure in an embodiment of this utility model.

[0030] Figure label:

[0031] 11. Fixed arm; 111. Slide rail; 12. Telescopic arm; 13. Transition slide box; 2. Telescopic drive device; 21. Telescopic cylinder; 22. Drive wire; 23. Drive fixed pulley; 24. Drive seat; 25. Auxiliary fixed pulley; 26. Auxiliary movable pulley; 3. Suspended basket device; 31. First box; 32. Second box; 33. Suspended basket cylinder; 34. Suspended beam; 35. Second swing cylinder; 36. Suspended basket door; 37. Door winch; 41. Drive frame; 42. Guide wheel; 43. Suspended basket winch; 44. First swing cylinder; 51. Base; 52. Rotation device; 53. Pitch cylinder; 54. Upper rotating steel structure. Detailed Implementation

[0032] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. This embodiment is based on the technical solution of the present invention and provides detailed implementation methods and specific operating procedures; however, the scope of protection of the present invention is not limited to the following embodiments.

[0033] This utility model embodiment provides a lightweight trestle bridge with a suspended basket, see reference. Figure 1 and Figure 2 The system includes: a telescopic bridge body, a telescopic drive device 2, and a suspended platform device 3; the telescopic bridge body includes a fixed arm 11 and a telescopic arm 12 movably disposed on the fixed arm 11; the telescopic drive device 2 is disposed on the telescopic bridge body and includes a telescopic cylinder 21 and a wire pulley assembly; the suspended platform device 3 is movably disposed on the telescopic bridge body and is used for lifting operations; wherein, the telescopic cylinder 21 is connected to the telescopic arm 12 through the wire pulley assembly to drive the telescopic arm 12 to move.

[0034] In some specific embodiments, the telescopic arm 12 and the fixed arm 11 are provided with corresponding slider structures, which are located at the tail end of the telescopic arm 12 and the front end of the fixed arm 11, respectively, so that the telescopic arm 12 and the fixed arm 11 can slide relative to each other.

[0035] In some embodiments of this utility model, reference is made to... Figure 2 The wire pulley assembly includes: a drive wire 22, a drive fixed pulley 23, and a drive seat 24; the drive seat 24 is connected to the telescopic cylinder 21, the drive fixed pulley 23 is located at one end of the fixed arm 11, one end of the drive wire 22 is connected to the drive seat 24, and the other end is connected to the telescopic arm 12 after being turned by the drive fixed pulley 23.

[0036] In some specific embodiments, reference is made to Figure 1 and Figure 2The telescopic cylinder 21 is located at the tail end of the fixed arm 11, and the drive seat 24 is movably mounted on the slide rail 111 of the fixed arm 11. When the output end of the telescopic cylinder 21 is connected to the pin of the drive seat 24, the drive seat 24 is driven to move on the fixed arm 11. The drive wire 22 is connected to the tail end of the drive seat 24 and the telescopic arm 12 respectively. The drive wire 22 passes through the drive fixed pulley 23 to realize that the drive seat 24 and the telescopic arm 12 move in opposite directions.

[0037] In some specific embodiments, the suspended platform device 3 can not only lift and lower, but also translate vertically along the extension direction of the telescopic bridge or in the opposite direction.

[0038] In some embodiments of this utility model, reference is made to... Figure 2 Two drive pulleys 23 are respectively set at both ends of the fixed arm 11. One end of the two drive steel wires 22 is connected to the drive seat 24, and the other end is connected to the tail end of the telescopic arm 12 after turning from both sides through the two drive pulleys 23.

[0039] In some embodiments of this utility model, reference is made to... Figure 2 The wire pulley assembly also includes an auxiliary pulley group, in which the drive wire 22 between the drive fixed pulley 23 and the drive seat 24 passes through the auxiliary pulley group; the auxiliary pulley group includes an auxiliary movable pulley 26 and an auxiliary fixed pulley 25, with the auxiliary movable pulley 26 mounted on the drive seat 24.

[0040] In some specific embodiments, the auxiliary movable pulley 26 is disposed on the top of the drive seat 24, and the auxiliary fixed pulley 25 is disposed near the drive fixed pulley 23.

[0041] In some specific embodiments, reference is made to Figure 2A pair of auxiliary fixed pulleys 25 and a drive fixed pulley 23 are both located near the tail end of the fixed arm 11. The drive seat 24 is located on the fixed arm 11. An auxiliary movable pulley 26 is provided on the drive seat 24 near the tail end of the fixed arm 11. One end of a drive steel wire 22 is connected to the drive seat 24, and the other end first extends along the retraction direction of the telescopic bridge and wraps around the auxiliary fixed pulley 25, then extends along the extension direction of the telescopic bridge and wraps around the auxiliary movable pulley 26 on the drive seat 24 near the tail end of the fixed arm 11, then extends along the retraction direction of the telescopic bridge and wraps around the drive fixed pulley 23, and finally extends along the extension direction of the telescopic bridge and connects to the tail end of the telescopic arm 12; another pair of auxiliary fixed pulleys 25 and All drive pulleys 23 are located near the front end of the fixed arm 11. The drive seat 24 is located on the fixed arm 11. Another auxiliary movable pulley 26 is provided on the drive seat 24 near the front end of the fixed arm 11. One end of another drive steel wire 22 is connected to the drive seat 24, and the other end first extends along the extension direction of the telescopic bridge and passes around the auxiliary fixed pulley 25, then extends along the retraction direction of the telescopic bridge and passes around the auxiliary movable pulley 26 on the drive seat 24, then extends along the extension direction of the telescopic bridge and passes around the drive fixed pulley 23, and finally extends along the retraction direction of the telescopic bridge and connects to the tail end of the telescopic arm 12; so that when the telescopic cylinder 21 drives the drive seat 24 to move, the telescopic arm 12 can move in both directions.

[0042] In some specific embodiments, reference is made to Figure 2 At least two sets of auxiliary pulleys are arranged in parallel. Specifically, two auxiliary fixed pulleys 25 are arranged in parallel at the tail or front end of the fixed arm 11, and two auxiliary movable pulleys 26 are arranged in parallel on the side of the drive seat 24 near the tail or front end of the fixed arm 11. One end of a drive steel wire 22 is connected to the drive seat 24, and the other end first passes through one set of auxiliary fixed pulleys 25 and auxiliary movable pulleys 26, then passes through another set of auxiliary fixed pulleys 25 and auxiliary movable pulleys 26, and then passes through the drive fixed pulley 23 along the extension or retraction direction of the telescopic bridge body, and finally connects to the tail end of the telescopic arm 12.

[0043] In some specific embodiments, reference is made to Figure 2 The drive base 24 has four auxiliary movable pulleys 26 arranged symmetrically in pairs, the fixed arm 11 has four auxiliary fixed pulleys 25 arranged symmetrically in pairs, and the fixed arm 11 has two drive fixed pulleys 23 arranged symmetrically in pairs.

[0044] In some embodiments of this utility model, reference is made to... Figure 3 and Figure 4 The lightweight trestle also includes a suspended platform drive device, which includes a drive frame 41 and a suspended platform winch 43. The drive frame 41 is fitted onto the telescopic bridge body via guide wheels 42, and two suspended platform winches 43 are respectively located at both ends of the telescopic bridge body and connected to the drive frame 41 by steel wire.

[0045] In some specific embodiments, reference is made to Figure 4 The drive frame 41 is a cuboid structure composed of rods, and several guide wheels 42 are provided on the inner side of the rods for rolling on the telescopic bridge body.

[0046] In some specific embodiments, reference is made to Figure 1 and Figure 4 A transition slide box 13 is provided between the telescopic boom 12 and the fixed boom 11, allowing the guide wheels 42 of the drive frame 41 to pass over the outer surface of the transition slide box 13 when moving between the telescopic boom 12 and the fixed boom 11, thus achieving smooth movement. The transition slide box 13 is movably mounted on the telescopic boom 12 via rollers, and is connected to the hoist winch 43 via steel wire.

[0047] In some embodiments of this utility model, reference is made to... Figure 3 and Figure 4 The top side of the suspended basket device 3 is hinged to the drive frame 41, and the other side is connected to the drive frame 41 through the first swing cylinder 44.

[0048] In some embodiments of this utility model, reference is made to... Figure 3 The suspended platform device 3 includes a suspended platform cylinder 33, a first housing 31, and a second housing 32; the second housing 32 is slidably mounted on the first housing 31 in the vertical direction, and the suspended platform cylinder 33 is connected to the top of the first housing 31 and the bottom of the second housing 32 respectively.

[0049] In some embodiments of this utility model, reference is made to... Figure 3 and Figure 4 The suspended platform device 3 also includes a suspension beam 34 and a second swing cylinder 35; the top of the first housing 31 is hinged to the suspension beam 34 on one side and connected to the suspension beam 34 on the other side through the second swing cylinder 35.

[0050] In some specific embodiments, reference is made to Figure 4 One side of the suspension beam 34 is hinged to the drive frame 41, and the other side is connected to the drive frame 41 through the first swing cylinder 44. The vertical attitude of the suspended basket device 3 is controlled by the extension and retraction of the first swing cylinder 44.

[0051] In some specific embodiments, reference is made to Figure 3 The first housing 31 is composed of a side surface and a top surface, and the second housing 32 is composed of a side surface and a bottom surface. The vertical relative movement between the first housing 31 and the second housing 32 is limited by a slider provided on the side surface.

[0052] In some specific embodiments, a hanging door 36 is provided on one side of the second housing 32. The hanging door 36 is hinged to one edge of the bottom surface of the second housing 32. A door winch 37 is provided on the top side of the second housing 32 and connected to the hanging door 36 by a steel wire to realize the opening and closing of the hanging door 36.

[0053] In some specific embodiments, reference is made to Figure 3 and Figure 4 When loading or unloading goods or passengers is required, the second container 32 is first moved vertically downwards to the working position by the hydraulic cylinder 33 of the basket. The door winch 37 releases the steel wire to open the basket door 36, allowing personnel or goods to enter the basket device 3. Subsequently, the door winch 37 retracts the steel wire to close the basket door 36, and the second container 32 is moved vertically upwards back to the initial position by the hydraulic cylinder 33 of the basket.

[0054] In some embodiments of this utility model, reference is made to... Figure 1 The lightweight pier also includes a pier base device for connecting to the ship deck; the pier base device includes a base 51, a slewing device 52 and a pitch cylinder 53; the slewing device 52 is mounted on the base 51, and the telescopic bridge body and the slewing device 52 are connected at one point and at the other point through the pitch cylinder 53.

[0055] In some specific embodiments, reference is made to Figure 1 The trestle base device also includes an upper rotating steel structure 54, which is connected to the rotating device 52 via a large rotating bearing, and the fixed arm 11 is connected to the upper rotating steel structure 54.

[0056] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0057] 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 indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0058] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," 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 or an electrical connection; 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 explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0059] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0060] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0061] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A lightweight trestle bridge with a suspended basket, characterized in that, include: The telescopic bridge body includes a fixed arm (11) and a telescopic arm (12) movably disposed on the fixed arm (11); Telescopic drive device (2), provided on the telescopic bridge body, includes telescopic cylinder (21) and wire pulley assembly; The suspended platform device (3) is movably mounted on the telescopic bridge body for lifting operations; The telescopic cylinder (21) is connected to the telescopic arm (12) via a wire pulley assembly to drive the telescopic arm (12) to move.

2. A lightweight trestle according to claim 1, characterised in that The wire pulley assembly includes: a drive wire (22), a drive fixed pulley (23), and a drive seat (24); the drive seat (24) is connected to the telescopic cylinder (21), the drive fixed pulley (23) is disposed at one end of the fixed arm (11), one end of the drive wire (22) is connected to the drive seat (24), and the other end is connected to the telescopic arm (12) after being turned by the drive fixed pulley (23).

3. A lightweight trestle according to claim 2, characterised in that The wire pulley assembly also includes an auxiliary pulley group, and the driving wire (22) between the driving fixed pulley (23) and the driving seat (24) passes through the auxiliary pulley group; the auxiliary pulley group includes an auxiliary movable pulley (26) and an auxiliary fixed pulley (25), and the auxiliary movable pulley (26) is disposed on the driving seat (24).

4. A lightweight trestle according to claim 3, characterised in that At least two sets of the auxiliary pulleys are arranged in parallel.

5. The lightweight trestle of claim 2, wherein, Two drive pulleys (23) are respectively disposed at both ends of the fixed arm (11). One end of each of the two drive steel wires (22) is connected to the drive seat (24), and the other end is connected to the telescopic arm (12) after turning from both sides through the two drive pulleys (23).

6. The lightweight trestle of claim 1, wherein, It also includes a suspended platform drive device, which includes a drive frame (41) and a suspended platform winch (43). The drive frame (41) is sleeved on the telescopic bridge body through guide wheels (42). The two suspended platform winches (43) are respectively set at both ends of the telescopic bridge body and connected to the drive frame (41) by steel wire.

7. A lightweight trestle according to claim 6, characterised in that The top side of the suspended basket device (3) is hinged to the drive frame (41), and the other side is connected to the drive frame (41) through the first swing cylinder (44).

8. The lightweight trestle of claim 1, wherein, The suspended platform device (3) includes a suspended platform cylinder (33), a first housing (31), and a second housing (32); the second housing (32) is slidably mounted on the first housing (31) in the vertical direction, and the suspended platform cylinder (33) is connected to the top of the first housing (31) and the bottom of the second housing (32) respectively.

9. A lightweight trestle according to claim 8, characterised in that The suspended basket device (3) also includes a suspension beam (34) and a second swing cylinder (35); one side of the top of the first box (31) is hinged to the suspension beam (34), and the other side is connected to the suspension beam (34) through the second swing cylinder (35).

10. The lightweight trestle of claim 1, wherein, It also includes a pier base device for connecting to the ship deck; the pier base device includes a base (51), a slewing device (52) and a pitch cylinder (53); the slewing device (52) is mounted on the base (51), and the telescopic bridge body and the slewing device (52) are connected at one point and at the other point through the pitch cylinder (53).

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