A spreader for hoisting a dock door
Patent Information
- Application Number
- CN202522298283.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-30
- Publication Date
- 2026-09-29
- Estimated Expiration
- 2035-10-30
AI Technical Summary
[0005]本实用新型提供一种用于坞门吊运的吊具，用于解决现有技术中的多吊孔吊具上的吊孔数量以及位置固定，通用性较低的技术问题
[0022]本实用新型提供的用于坞门吊运的吊具包括实心方梁、吊块以及锁紧单元，实心方梁沿水平方向延伸，实心方梁的长度方向和宽度方向分别为第一方向和第二方向，实心方梁的底端焊接在坞门，在实心方梁的顶面上开设有五个安装孔，五个安装孔沿第一方向均匀分布，吊块设置有实心块体，实心块体用于嵌装在安装孔中，吊块还设置有吊板，吊板开设有一吊孔，锁紧单元安装在实心块体和实心方梁之间，以将实心块体锁紧于实心方梁，五个安装孔中的其中一个或者两个或者三个或者四个或者五个安装有吊块。
Smart Images
Figure CN224812063U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of hoisting technology, and specifically relates to a hoisting device for hoisting dock gates. Background Technology
[0002] Whether it is a flap-type dock gate or a floating dock gate, they weigh thousands of tons. When the dock gate leaves the factory or enters the dock, it is sometimes necessary to use a floating crane for lifting. Lifting equipment is indispensable in the lifting process.
[0003] Conventional spreaders typically have only one lifting hole, which is suitable for situations where the stress points can be distributed throughout the dock. However, for large, heavy cargoes like floating docks where stress points are difficult to distribute, only spreaders with multiple lifting holes can be used. However, in existing technologies, the position and number of lifting holes on multi-hole spreaders are fixed and cannot be adjusted as needed. This results in multi-hole spreaders being mostly specialized, suitable only for lifting certain types of cargo, with low versatility. Consequently, existing multi-hole spreaders have a high rate of idle time, leading to material waste.
[0004] For example, the multi-hole lifting tool used when hoisting dock gates is a special lifting tool that is only suitable for hoisting dock gates and cannot be used for hoisting other goods. When there are no dock gates to hoist, the lifting tool is idle and wasted. Since dock gate hoisting time is generally not very long, this type of lifting tool is mostly idle. Utility Model Content
[0005] This utility model provides a lifting device for dock gate hoisting, which solves the technical problem of the fixed number and position of lifting holes on existing multi-hole lifting devices, resulting in low versatility.
[0006] This utility model is achieved through the following technical solution: a lifting device for hoisting dock gates, comprising:
[0007] A solid square beam extends horizontally, with its length and width directions being a first direction and a second direction, respectively. The bottom end of the solid square beam is welded to a dock gate, and five mounting holes are provided on the top surface of the solid square beam, with the five mounting holes evenly distributed along the first direction.
[0008] The lifting block is provided with a solid block, which is used to be fitted into the mounting hole. The lifting block is also provided with a lifting plate, which has a lifting hole.
[0009] A locking unit is installed between the solid block and the solid square beam to lock the solid block to the solid square beam;
[0010] The lifting block is installed in one, two, three, four, or five of the five mounting holes.
[0011] Furthermore, to better realize this utility model, the locking unit includes a first double-ended screw and a first locking nut. A first through hole is provided on the solid square beam. The first through hole penetrates the side wall of the mounting hole along the second direction. A first connecting hole is provided on the solid block. When the solid block is embedded in the mounting hole, the first connecting hole corresponds to and communicates with the first through hole to form a first hole. The first double-ended screw passes through the first hole, and both ends of the first double-ended screw extend to both sides of the solid square beam. A first locking nut is screwed onto each end of the first double-ended screw.
[0012] Furthermore, to better realize this utility model, the locking unit also includes a second double-ended screw and a second locking nut. A second through hole is provided on the solid square beam. The second through hole penetrates all the sidewalls of the mounting holes along the second direction. A second connecting hole is provided on the solid block. When the solid block is embedded in the mounting hole, the second connecting hole corresponds to and communicates with the second through hole to form a second hole. The second double-ended screw passes through the second hole, and both ends of the second double-ended screw extend out from both ends of the solid square beam. Two second locking nuts are screwed onto both ends of the second double-ended screw.
[0013] Furthermore, in order to better realize this utility model, the lifting hole is a round hole, and a rotating sleeve with a central through hole is rotatably installed in the lifting hole, and the two ends of the central through hole are provided with rounded corners.
[0014] Furthermore, in order to better realize this utility model, the rotating sleeve includes a straight tube body and two retaining rings. The two retaining rings are welded to both ends of the straight tube body, and both retaining rings are coaxially arranged with the straight tube body. The inner hole of the straight tube body forms the central through hole of the rotating sleeve.
[0015] The straight tube is rotatably inserted into the lifting hole, the two retaining rings are respectively placed on both sides of the lifting plate, and the outer peripheral sidewall of the straight tube is in contact with the hole wall of the lifting hole, and the sidewall of the retaining ring is in contact with the sidewall of the lifting plate.
[0016] Furthermore, in order to better realize this utility model, a protective frame is also fixedly connected to the lifting block, and the protective frame is provided with a crossbeam located directly above the lifting plate.
[0017] Furthermore, in order to better realize this utility model, the hanging plate is set at the middle of the top surface of the solid block, the protective frame includes four uprights, the bottom ends of the four uprights are all welded to the top surface of the solid block, and the four uprights are located at the four vertices of the same rectangle, the hanging plate is located between the four uprights, and the crossbeam is welded and fixed between the four uprights.
[0018] Furthermore, in order to better realize this utility model, a filler block is also embedded in the mounting hole where the lifting block is not installed. The mass of the filler block is less than that of the lifting block, and the filler block is locked in the mounting hole by the locking unit.
[0019] Furthermore, in order to better realize this utility model, structural reinforcing plates are welded to both ends of the solid square beam in the first direction.
[0020] Furthermore, in order to better realize this utility model, structural reinforcing ribs are welded to both outer walls of the solid square beam in the second direction.
[0021] Compared with the prior art, this utility model has the following advantages:
[0022] The lifting device for dock gate hoisting provided by this utility model includes a solid square beam, a lifting block, and a locking unit. The solid square beam extends horizontally, with its length direction and width direction being the first direction and the second direction, respectively. The bottom end of the solid square beam is welded to the dock gate. Five mounting holes are evenly distributed along the first direction on the top surface of the solid square beam. The lifting block is provided with a solid block body for being fitted into the mounting holes. The lifting block is also provided with a lifting plate, which has a lifting hole. The locking unit is installed between the solid block body and the solid square beam to lock the solid block body to the solid square beam. One, two, three, four, or five of the five mounting holes are equipped with lifting blocks.
[0023] With the above structure, workers can selectively install one, two, three, four, or five of the five mounting holes on the solid square beam, thereby giving the lifting device one, two, three, four, or five lifting holes respectively. When lifting heavy cargo such as floating dock gates where it is difficult to arrange stress points, four or five lifting blocks can be installed on the solid square beam; when lifting heavy cargo such as flap-type dock gates where it is easy to arrange stress points, one lifting block can be installed on the solid square beam. In this way, workers can flexibly choose the number of lifting blocks installed on the solid square beam according to the cargo, thereby giving the lifting device a corresponding number of lifting holes. Therefore, the lifting device provided by this utility model is not only suitable for dock gate lifting, but also for lifting other cargoes, with high versatility and strong practicality. Attached Figure Description
[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0025] Figure 1 This is a schematic diagram of the structure of the lifting device for dock gate hoisting provided in this embodiment of the utility model when five lifting blocks are installed;
[0026] Figure 2 yes Figure 1 A cross-sectional view of the structure shown;
[0027] Figure 3 yes Figure 1 Exploded view of the structure shown;
[0028] Figure 4 This is a schematic diagram of the rotating sleeve in an embodiment of the present utility model;
[0029] Figure 5 This is a schematic diagram of the structure of the lifting block in an embodiment of this utility model;
[0030] Figure 6 This is a schematic diagram of the installation structure of the protective frame on the hanging block in an embodiment of this utility model;
[0031] Figure 7 This is a schematic diagram of the lifting device for dock gate hoisting provided in this embodiment of the utility model when four lifting blocks are installed;
[0032] Figure 8 This is a schematic diagram of the lifting device for dock gate hoisting provided in this embodiment of the present invention when three lifting blocks are installed;
[0033] Figure 9 This is a schematic diagram of the lifting device for dock gate hoisting provided in this embodiment of the present invention when two lifting blocks are installed;
[0034] Figure 10 This is a structural diagram of the lifting device for dock gate hoisting provided in this embodiment of the utility model when a lifting block is installed.
[0035] In the picture:
[0036] 10-Solid square beam, 11-Mounting hole, 12-Structural reinforcing plate, 13-Structural reinforcing rib, 20-Hanging block, 21-Solid block, 22-Hanging plate, 30-First double-ended screw, 31-First locking nut, 40-Second double-ended screw, 41-Second locking nut, 50-Rotating sleeve, 51-Straight tube body, 52-Retaining ring, 53-Rounded corner, 60-Protective frame, 61-Crossbeam, 62-Upright pole, 70-Filling block. Detailed Implementation
[0037] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0038] Example:
[0039] like Figures 1-10 As shown, the lifting device for dock gate hoisting provided in this embodiment includes a solid square beam 10, a lifting block 20, and a locking unit, wherein:
[0040] The solid square beam 10 can be a steel beam that extends horizontally. The length and width directions of the solid square beam 10 are defined as the first and second directions, respectively. The bottom end of the solid square beam 10 is welded to the dock gate. Alternatively, a hook can be installed at the center of the bottom end of the solid square beam 10 for suspending cargo. In this case, the spreader is no longer limited to lifting the dock gate.
[0041] Five mounting holes 11 are provided on the top surface of the solid square beam 10, and the five mounting holes 11 are evenly distributed along a first direction. The hanging block 20 is provided with a solid block 21, which is used to fit into the mounting holes 11. The hanging block 20 is also provided with a hanging plate 22. That is, the hanging block 20 includes the solid block 21 and the hanging plate 22. The pad is integrally formed and provided on the top of the solid block 21. The hanging plate 22 has a hanging hole. The locking unit is installed between the solid block 21 and the solid square beam 10 to lock the solid block 21 to the solid square beam 10. When the locking unit is locked, the hanging block 20 is stably connected to the solid square beam 10. When the locking unit is unlocked, the hanging block 20 can be removed from the solid square beam 10. That is, in this embodiment, the hanging block 20 is detachably and fixedly installed on the solid square beam 10.
[0042] One, two, three, four, or five of the five mounting holes 11 are fitted with lifting blocks 20. Specifically, Figure 10 This diagram shows a structural schematic of a lifting block 20 installed on a solid square beam 10. Figure 9This diagram shows a structural schematic of two lifting blocks 20 installed on a solid square beam 10. Figure 8 This diagram shows a structural schematic of three lifting blocks 20 installed on a solid square beam 10. Figure 7 This diagram shows a structural schematic of four lifting blocks 20 installed on a solid square beam 10. Figure 1 A schematic diagram of the structure is shown when five lifting blocks 20 are installed on a solid square beam 10.
[0043] With the above structure, workers can selectively install the lifting blocks 20 on one, two, three, four, or five of the five mounting holes 11 on the solid square beam 10, thereby giving the lifting device one, two, three, four, or five lifting holes respectively. When lifting heavy cargo such as a floating dock gate, where it is difficult to arrange stress points, four or five lifting blocks 20 can be installed on the solid square beam 10; when lifting heavy cargo such as a flap-type dock gate, where it is easy to arrange stress points, one lifting block 20 can be installed on the solid square beam 10. In this way, workers can flexibly select the number of lifting blocks 20 installed on the solid square beam 10 according to the cargo, thereby giving the lifting device a corresponding number of lifting holes. Therefore, the lifting device provided in this embodiment is not only suitable for dock gate lifting, but also for lifting other cargo, with high versatility and strong practicality.
[0044] Optionally, the locking unit includes a first double-ended screw 30 and a first locking nut 31. A first through hole is provided on the solid square beam 10, which penetrates the side wall of the mounting hole 11 along the second direction. A first connecting hole is provided on the solid block 21. When the solid block 21 is fitted into the mounting hole 11, the first connecting hole corresponds to and communicates with the first through hole to form a first hole. The first double-ended screw 30 passes through the first hole, and both ends of the first double-ended screw 30 extend to both sides of the solid square beam 10. A first locking nut 31 is screwed onto each end of the first double-ended screw 30. In this way, the two first nuts clamp the solid square beam 10 from both sides. Since the solid block 21 is fitted into the mounting hole 11 and the solid block 21 is compatible with the mounting hole 11, when the two first nuts are tightened, the solid block 21 is locked in the corresponding mounting hole 11 on the solid square beam 10.
[0045] More preferably, in order to further increase the connection between the lifting block 20 and the solid square beam 10, thereby increasing the lifting capacity of the lifting device, in this embodiment, the locking unit further includes a second double-ended screw 40 and a second locking nut 41. A second through hole is provided on the solid square beam 10, and the second through hole penetrates all the side walls of the mounting holes 11 along the second direction. A second connecting hole is provided on the solid block 21. When the solid block 21 is installed in the mounting hole 11, the second connecting hole corresponds to and communicates with the second through hole to form a second hole. The second double-ended screw 40 passes through the second hole, and the two ends of the second double-ended screw 40 extend out from the two ends of the solid square beam 10 respectively. Two second locking nuts 41 are screwed to the two ends of the second double-ended screw 40 respectively.
[0046] It is worth noting that in this embodiment, the first double-ended screw 30 only passes through a single mounting hole 11, while the second double-ended screw 40 passes through all the mounting holes 11. Therefore, the first double-ended screw 30 and the first locking nut 31 only connect a single lifting block 20 to the solid square beam 10, while the second double-ended screw 40 and the second locking nut 41 can connect all the lifting blocks 20 to the solid square beam 10 in one go.
[0047] Of course, the locking unit mentioned above can also be a latch or a tenon-and-mortise structure.
[0048] An optional implementation of this embodiment is as follows: The lifting hole is a circular hole, and a rotating sleeve 50 with a central through hole is rotatably installed in the lifting hole. Both ends of the central through hole are provided with rounded corners 53. This reduces the friction between the wire rope and the wall of the lifting hole.
[0049] Specifically, the aforementioned rotating sleeve 50 includes a straight tube body 51 and two retaining rings 52. The two retaining rings 52 are welded to both ends of the straight tube body 51, and both retaining rings 52 are coaxially arranged with the straight tube body 51. The inner hole of the straight tube body 51 forms the central through hole of the rotating sleeve 50. The straight tube body 51 is rotatably inserted into the lifting hole. The two retaining rings 52 are respectively placed on both sides of the lifting plate 22, and the outer peripheral sidewall of the straight tube body 51 is in contact with the hole wall of the lifting hole, and the sidewall of the retaining rings 52 is in contact with the sidewall of the lifting plate 22. The aforementioned rounded corners 53 are provided at the edges of the holes at both ends of the inner hole of the straight tube body 51. When the wire rope is threaded through the lifting hole, it is actually threaded through the inner hole of the straight tube body 51, and the two retaining rings 52 prevent the rotating sleeve 50 from falling out of the lifting hole.
[0050] An optional implementation of this embodiment is as follows: A protective frame 60 is also fixed to the lifting block 20, and the protective frame 60 has a crossbeam 61 located directly above the lifting plate 22. Thus, even if the lifting plate 22 breaks due to excessive force, causing the wire rope to fall out of the inner hole of the lifting hole / straight pipe 51, the crossbeam 61 will prevent the wire rope from falling out. Of course, in reality, the lifting plate 22 and the straight pipe 51 will not break; the protective frame 60 and the crossbeam 61 are merely a safety structure, providing a secondary anti-derailment effect.
[0051] In this embodiment, the width of the hanging plate 22 is smaller than that of the solid block 21, and the length of the hanging plate 22 is the same as that of the solid block 21. In the first direction, both ends of the hanging plate 22 are flush with the solid block 21, and in the second direction, the hanging plate 22 is located in the middle of the solid block 21. That is, the hanging plate 22 is integrally formed and disposed in the middle of the top surface of the solid block 21.
[0052] The aforementioned protective frame 60 includes four uprights 62, the bottom ends of which are all welded to the top surface of the solid block 21, and the four uprights 62 are located at the four vertices of the same rectangle. The aforementioned hanging plate 22 is located between the four uprights 62, and the aforementioned crossbeam 61 is welded and fixed between the four uprights 62.
[0053] An optional implementation of this embodiment is as follows: When the five mounting holes 11 on the solid square beam 10 are not fully filled with lifting blocks 20, the empty mounting holes 11 will form a large cavity inside the solid square beam 10. In order to avoid the cavity reducing the structural strength of the lifting device and affecting its lifting capacity, the lifting device provided in this embodiment also includes a filling block 70. The mass of the filling block 70 is less than that of the lifting block 20. Of course, the filling block 70 is also a solid block 21, which fills the mounting holes 11 where the lifting blocks 20 are not installed and is locked by means of the locking unit.
[0054] The filler block 70 fills the mounting hole 11 of the mounting block 20, thereby supporting the empty mounting hole 11 from the inside to ensure the structural strength of the lifting device.
[0055] To further enhance the structural strength of the lifting device provided in this embodiment, in the first direction, structural reinforcing plates 12 are welded to both ends of the solid square beam 10. The bottom end of the structural reinforcing plate 12 can also be welded to the dock gate, thereby increasing the connection area with the dock gate. In the second direction, structural reinforcing ribs 13 are welded to the outer walls of both sides of the solid square beam 10. The bottom end of the structural reinforcing ribs 13 can also be welded to the dock gate, thereby increasing the connection area with the dock gate.
[0056] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope described in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.
Claims
1. A lifting device for hoisting dock gates, characterized in that, include: A solid square beam (10) extends horizontally. The length direction and width direction of the solid square beam (10) are the first direction and the second direction, respectively. The bottom end of the solid square beam (10) is welded to the dock gate. Five mounting holes (11) are opened on the top surface of the solid square beam (10). The five mounting holes (11) are evenly distributed along the first direction. The lifting block (20) is provided with a solid block (21), which is used to be fitted into the mounting hole (11). The lifting block (20) is also provided with a lifting plate (22), which has a lifting hole. A locking unit is installed between the solid block (21) and the solid square beam (10) to lock the solid block (21) to the solid square beam (10); The lifting block (20) is installed in one, two, three, four or five of the five mounting holes (11).
2. The lifting device for dock gate hoisting according to claim 1, characterized in that: The locking unit includes a first double-ended screw (30) and a first locking nut (31). A first through hole is provided on the solid square beam (10). The first through hole passes through the side wall of the mounting hole (11) along the second direction. A first connecting hole is provided on the solid block (21). When the solid block (21) is installed in the mounting hole (11), the first connecting hole corresponds to and communicates with the first through hole to form a first hole. The first double-ended screw (30) passes through the first hole, and the two ends of the first double-ended screw (30) extend to the two sides of the solid square beam (10). A first locking nut (31) is screwed onto the two ends of the first double-ended screw (30).
3. The lifting device for dock gate hoisting according to claim 2, characterized in that: The locking unit also includes a second double-ended screw (40) and a second locking nut (41). A second through hole is provided on the solid square beam (10). The second through hole penetrates all the side walls of the mounting holes (11) along the second direction. A second connecting hole is provided on the solid block (21). When the solid block (21) is installed in the mounting hole (11), the second connecting hole corresponds to and communicates with the second through hole to form a second hole. The second double-ended screw (40) passes through the second hole, and the two ends of the second double-ended screw (40) extend out from the two ends of the solid square beam (10). Two second locking nuts (41) are screwed onto the two ends of the second double-ended screw (40).
4. The lifting device for dock gate hoisting according to any one of claims 1-3, characterized in that: The lifting hole is a round hole, and a rotating sleeve (50) with a central through hole is rotatably installed in the lifting hole. Both ends of the central through hole are provided with rounded corners (53).
5. The lifting device for dock gate hoisting according to claim 4, characterized in that: The rotating sleeve (50) includes a straight tube body (51) and two retaining rings (52). The two retaining rings (52) are welded to both ends of the straight tube body (51), and both retaining rings (52) are coaxially arranged with the straight tube body (51). The inner hole of the straight tube body (51) forms the central through hole of the rotating sleeve (50). The straight tube (51) is rotatably inserted into the lifting hole, and the two retaining rings (52) are respectively placed on both sides of the lifting plate (22). The outer peripheral sidewall of the straight tube (51) is in contact with the hole wall of the lifting hole, and the sidewall of the retaining ring (52) is in contact with the sidewall of the lifting plate (22).
6. The lifting device for dock gate hoisting according to claim 5, characterized in that: A protective frame (60) is also fixed to the lifting block (20), and the protective frame (60) is provided with a crossbeam (61) located directly above the lifting plate (22).
7. The lifting device for dock gate hoisting according to claim 6, characterized in that: The hanging plate (22) is located at the center of the top surface of the solid block (21). The protective frame (60) includes four uprights (62). The bottom ends of the four uprights (62) are all welded to the top surface of the solid block (21). The four uprights (62) are located at the four vertices of the same rectangle. The hanging plate (22) is located between the four uprights (62). The crossbeam (61) is welded and fixed between the four uprights (62).
8. The lifting device for dock gate hoisting according to any one of claims 1-3, characterized in that: A filler block (70) is also embedded in the mounting hole (11) where the lifting block (20) is not installed. The mass of the filler block (70) is less than that of the lifting block (20), and the filler block (70) is locked in the mounting hole (11) by the locking unit.
9. The lifting device for dock gate hoisting according to claim 8, characterized in that: In the first direction, structural reinforcing plates (12) are welded to both ends of the solid square beam (10).
10. The lifting device for dock gate hoisting according to claim 9, characterized in that: In the second direction, structural reinforcing ribs (13) are welded to both outer walls of the solid square beam (10).