Rail lifting appliance

Abstract

The utility model discloses a rail lifting appliance. The rail lifting appliance comprises a frame, a plurality of track swivel hooks are arranged at the bottom of the frame and are rotationally connected with the frame through bearings respectively; the track swivel hook has two working positions, namely an opening position and a lifting position; the control handle drives the plurality of track swivel hooks to be synchronously switched between an opening position and a hoisting position through the synchronous transmission assembly; a limiting piece is fixedly arranged on the frame and used for limiting the control handle when the track swivel hook is located at the opening position and the lifting position. The rail lifting appliance disclosed by the utility model is convenient to mount, stable in fixation, high in safety, capable of lifting a plurality of rails at one time, and high in lifting efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of slings, in particular to a track sling. Background Art

[0002] Cranes are essential for loading, unloading, and transporting heavy equipment or raw materials. Rails are not only heavy but also long, requiring cranes for processing and transport. Cranes are used to lift rails, requiring a sling to secure them. Existing slings can only lift one rail at a time, making securing them inconvenient and inefficient. Utility Model Content

[0003] In view of the above-mentioned defects or deficiencies in the prior art, it is desired to provide a rail hoist that is easy to install, firmly fixed, highly safe, can lift multiple rails at a time, and has high lifting efficiency.

[0004] The utility model provides a rail hoist, comprising a frame; a plurality of rail swivel hooks are arranged at equal intervals in the horizontal direction at the bottom of the frame, and the rail swivel hooks are rotatably connected to the frame via bearings; the rail swivel hooks have two working positions: an open position and a lifting position after being rotated 90° from the open position; when the rail swivel hooks are in the open position, they can be inserted between the top ends of two rails that are closely aligned side by side; when the rail swivel hooks are in the lifting position, they are clamped in the two rails that are closely aligned side by side;

[0005] The top ends of several of the track hooks are connected to a control handle through a synchronous transmission assembly, and the control handle drives several track hooks to switch synchronously between the open position and the lifting position through the synchronous transmission assembly; a limiting member is fixedly provided on the frame on one side of the synchronous transmission assembly, which is used to limit the control handle when the track hook is in the open position and the lifting position respectively.

[0006] Furthermore, suspension chains are symmetrically fixedly connected on both sides of the top of the frame.

[0007] Furthermore, an annular handrail is fixedly provided on the frame.

[0008] Furthermore, the frame includes two end plates, a support plate is fixedly arranged between the two end plates, a connecting plate is fixedly arranged between the top surface of the support plate and the two end plates, the track hook is rotatably mounted on the support plate through a bearing, and an avoidance window is opened on the connecting plate corresponding to the track hook.

[0009] Furthermore, a plurality of reinforcing plates are fixedly arranged between the connecting plate and the supporting plate.

[0010] Furthermore, the track hook includes a rotating shaft, the bottom end of which is fixedly connected to a block, the width of the block is smaller than the gap between the top ends of two closely aligned tracks, and the length of the block is greater than the gap between the top ends of two closely aligned tracks.

[0011] Furthermore, a plurality of the track hooks are distributed at equal intervals between the two end plates; when the track hooks at both ends are in the open position, the gap between their clamping blocks and the end plates on the same side is greater than the width of the top of the track; when the track hooks at both ends are in the lifting position, the gap between their clamping blocks and the end plates on the same side is less than the width of the top of the track.

[0012] Furthermore, the synchronous transmission assembly includes a transmission plate and a transmission arm, the transmission plate is arranged on one side of the plurality of rotating shafts, the transmission arm is arranged between the rotating shafts and the transmission plate, one end of the transmission arm is rotatably connected to the transmission plate, and the bottom of the other end is fixedly connected to a first sleeve, and the first sleeve is fixedly sleeved with the top end of the corresponding rotating shaft.

[0013] Furthermore, the control handle includes a driving rod, one end of which is fixedly connected to a cross bar, and both ends of the cross bar are rotatably sleeved with second sleeves, and the second sleeves are fixedly connected to a side of the transmission plate away from the rotating shaft.

[0014] Furthermore, the limiting member includes a vertically arranged limiting plate, the bottom end of the limiting plate is fixedly connected to the frame through a horizontal plate, and the top end of the limiting plate is provided with a first limiting groove and a second limiting groove corresponding to the driving rod; when the driving rod is embedded in the first limiting groove, the track hook is in an open position; when the driving rod is embedded in the second limiting groove, the track hook is in a lifting position.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] The rail sling of the present invention is provided with a plurality of rotatable rail hooks on the frame. When the rails are hoisted, the rail hooks are in the open position and can be quickly inserted between adjacent rails; the control handle drives each rail hook to rotate synchronously to the lifting position through the synchronous transmission assembly, clamping multiple rails at the same time. Multiple lifting points are set on multiple side-by-side rails, and each lifting point is fixed by the rail sling. The rail sling is connected to the crane hook or the lifting beam. Multiple rails can be lifted at one time by a crane. The rail sling of the present application is easy to install, firmly fixed, highly safe, and has high lifting efficiency.

[0017] It should be understood that the contents described in the summary of the utility model are not intended to limit the key or important features of the embodiments of the utility model, nor are they intended to limit the scope of the utility model. Other features of the utility model will become easier to understand through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Other features, objects and advantages of the present invention will become more apparent from the detailed description of the non-limiting embodiments made with reference to the following drawings:

[0019] Figure 1 Schematic diagram of the three-dimensional structure of the rail hanger;

[0020] Figure 2 This is a structural diagram of the rail spreader when the rail hook is in the open position;

[0021] Figure 3 This is a structural diagram of the rail hoist when the rail hook is in the lifting position;

[0022] Figure 4 It is a three-dimensional structural diagram of the track hook, synchronous transmission assembly, control handle and limiter;

[0023] Figure 5 It is a side view structural diagram of the track hook, synchronous transmission assembly, control handle and limiter.

[0024] Numbers in the figure: 1, frame; 2, track hook; 3, synchronous transmission assembly; 4, control handle; 5, limiter; 6, suspension chain; 7, circular handrail; 8, track;

[0025] 11. End plate; 12. Support plate; 13. Connecting plate; 14. Avoidance window; 15. Reinforcement plate.

[0026] 21. Rotating shaft; 22. Clamping block;

[0027] 31. Transmission plate; 32. Transmission arm; 33. First sleeve;

[0028] 41. driving rod; 42. crossbar; 43. second sleeve;

[0029] 51. Limiting plate; 52. Horizontal plate; 53. First limiting groove; 54. Second limiting groove. DETAILED DESCRIPTION

[0030] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are intended only to illustrate the relevant utility model and are not intended to limit the scope of the utility model. It should also be noted that, for ease of description, only the portions relevant to the utility model are shown in the accompanying drawings.

[0031] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0032] Please refer to Figures 1 to 5 The embodiment of the utility model provides a rail hoist, comprising a frame 1; a plurality of rail hooks 2 are arranged at equal intervals in the horizontal direction at the bottom of the frame 1, and the rail hooks 2 are rotatably connected to the frame 1 via bearings; the rail hooks 2 have two working positions: an open position and a lifting position after rotating 90 degrees from the open position; when the rail hooks 2 are in the open position, they can be inserted between the top ends of two rails 8 that are closely arranged side by side; when the rail hooks 2 are in the lifting position, they are clamped in the two rails 8 that are closely arranged side by side;

[0033] The top ends of several rail hooks 2 are connected to a control handle 4 through a synchronous transmission assembly 3, and the control handle 4 drives several rail hooks 2 to switch synchronously between the open position and the lifting position through the synchronous transmission assembly 3; a limiting member 5 is fixedly provided on one side of the synchronous transmission assembly 3 on the frame 1, which is used to limit the control handle 4 when the rail hook 2 is in the open position and the lifting position respectively.

[0034] In this embodiment, when lifting multiple rails 8 that are closely arranged side by side, the control handle 4 is first rotated to drive the rail hooks 2 to rotate synchronously to the open position through the synchronous transmission component 3, and the control handle 4 is limited by the limiter 5 to allow the rail hooks 2 to accurately rotate to the open position; then, each rail hook 2 is inserted between adjacent rails, and the control handle 4 is rotated again to drive the rail hooks 2 to rotate synchronously to the lifting position through the synchronous transmission component 3, and the control handle 4 is limited by the limiter 5 to allow the rail hooks 2 to accurately rotate to the lifting position. At this time, the rail hooks 2 distributed at equal intervals clamp multiple rails 8 at the same time.

[0035] Multiple lifting points are evenly spaced on the multiple parallel rails 8, each of which is secured by a rail sling. The rail sling is connected to the hook or beam of a crane. The crane can lift multiple rails 8 at once. The rail sling of the present application is easy to install, securely fixed, highly safe, and highly efficient.

[0036] In a preferred embodiment, if Figure 1 As shown, suspension chains 6 are symmetrically fixedly connected to both sides of the top of the frame 1. The frame 1 is connected to the hook or beam of the crane through the suspension chains 6. The connection is firm and safe.

[0037] In a preferred embodiment, if Figure 1 As shown, a ring handrail 7 is fixedly provided on the frame 1 to facilitate the installation and disassembly of the rail hanger.

[0038] In a preferred embodiment, if Figure 1 and Figure 2 As shown, the frame 1 includes two end plates 11, with a support plate 12 fixedly disposed between the two end plates 11. A connecting plate 13 is fixedly disposed between the top surface of the support plate 12 and the two end plates 11. The rail hook 2 is rotatably mounted on the support plate 12 via a bearing. The connecting plate 13 has an escape window 14 corresponding to the rail hook 2. The frame 1 has a high structural strength and meets the requirements for the simultaneous lifting of multiple rails 8.

[0039] In a preferred embodiment, if Figure 1 and Figure 2 As shown, a plurality of reinforcing plates 15 are fixedly arranged between the connecting plate 13 and the supporting plate 12 , thereby further improving the structural strength of the frame 1 .

[0040] In a preferred embodiment, if Figure 3 and Figure 4 As shown, the track hook 2 includes a rotating shaft 21, and a block 22 is fixedly connected to the bottom end of the rotating shaft 21. The width of the block 22 is smaller than the gap between the top ends of the two rails 8 that are closely attached to each other, and the length of the block 22 is greater than the gap between the top ends of the two rails 8 that are closely attached to each other.

[0041] In this embodiment, the rail hook 2 consists of a rotating shaft 21 and a clamping block 22. The width of the clamping block 22 allows it to extend between two rails 8, and the length of the clamping block 22 allows it to be clamped between the two rails 8. The two clamping blocks 22 cooperate to clamp one rail 8. This allows for easy installation and secure fixation, ensuring the safety of lifting multiple rails 8 simultaneously.

[0042] In a preferred embodiment, if Figure 2 and Figure 3 As shown, a plurality of rail hooks 2 are distributed at equal intervals between the two end plates 11; when the rail hooks 2 at both ends are in the open position, the gap between their clamping blocks 22 and the end plates 11 on the same side is larger than the width of the top of the rail 8; when the rail hooks 2 at both ends are in the lifting position, the gap between their clamping blocks 22 and the end plates 11 on the same side is smaller than the width of the top of the rail 8.

[0043] In this embodiment, through the cooperation between the clamping block 22 and the end plate 11, a rail 8 can be suspended between the rail hook 2 located at the outermost end and the end plate 11. The structural design is reasonable and the lifting efficiency of the rail 8 is improved.

[0044] In a preferred embodiment, if Figure 4 and Figure 5As shown, the synchronous transmission assembly 3 includes a transmission plate 31 and a transmission arm 32. The transmission plate 31 is arranged on one side of the plurality of rotating shafts 21. A transmission arm 32 is provided between the rotating shafts 21 and the transmission plate 31. One end of the transmission arm 32 is rotatably connected to the transmission plate 31, and the bottom of the other end is fixedly connected to a first sleeve 33. The first sleeve 33 is fixedly sleeved with the top end of the corresponding rotating shaft 21.

[0045] In this embodiment, the transmission plate 31 is driven to move by controlling the handle 4, and the transmission plate 31 drives the rotating shafts 21 to rotate synchronously through the transmission arms 32, thereby realizing the synchronous switching of the working positions of the track hooks 2, making the installation and disassembly of the track hooks 2 quick and convenient.

[0046] In a preferred embodiment, if Figure 4 As shown, the control handle 4 includes a driving rod 41, one end of the driving rod 41 is fixedly connected to a cross bar 42, and both ends of the cross bar 42 are rotatably sleeved with second sleeves 43, and the second sleeves 43 are fixedly connected to the side of the transmission plate 31 away from the rotating shaft 21;

[0047] The limiting member 5 includes a vertically arranged limiting plate 51, the bottom end of which is fixedly connected to the frame 1 through a horizontal plate 52, and the top end of the limiting plate 51 is provided with a first limiting groove 53 and a second limiting groove 54 corresponding to the driving rod 41; when the driving rod 41 is embedded in the first limiting groove 53, the track hook 2 is in the open position; when the driving rod 41 is embedded in the second limiting groove 54, the track hook 2 is in the lifting position.

[0048] In this embodiment, by lifting the driving rod 41, the synchronous transmission assembly 3 can be driven by the driving rod 41, and by lowering the driving rod 41 so that it is embedded in the first limiting groove 53 or the second limiting groove 54, the track hook 2 can be placed in the corresponding working position, and the track hook 2 will not move at will, so it is highly safe.

[0049] In this specification, the terms "connect," "install," and "fix" should be understood broadly. For example, "connect" can refer to a fixed connection, a detachable connection, or an integral connection; it can refer to a direct connection or an indirect connection through an intermediary. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0050] Throughout this specification, terms such as "one embodiment" or "some embodiments" mean that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present application. In this specification, schematic representations 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 any one or more embodiments or examples.

[0051] The above are merely preferred embodiments of the present application and are not intended to limit the present application. Those skilled in the art will readily appreciate that various modifications and variations are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. A rail hanger, characterized in that: The invention comprises a frame (1); a plurality of track swivel hooks (2) are arranged at equal intervals in the horizontal direction at the bottom of the frame (1); the track swivel hooks (2) are rotatably connected to the frame (1) via bearings; the track swivel hooks (2) have two working positions: an open position and a lifting position after rotating 90 degrees from the open position; when the track swivel hooks (2) are in the open position, they can be inserted between the top ends of two closely aligned track (8); when the track swivel hooks (2) are in the lifting position, they are clamped in the two closely aligned track (8); The top ends of the plurality of track hooks (2) are connected to a control handle (4) via a synchronous transmission assembly (3), and the control handle (4) drives the plurality of track hooks (2) to switch synchronously between an open position and a lifting position via the synchronous transmission assembly (3); a limiting member (5) is fixedly provided on one side of the synchronous transmission assembly (3) on the frame (1), and is used to limit the control handle (4) when the track hooks (2) are in the open position and the lifting position respectively.

2. The rail hanger according to claim 1, characterized in that: Suspension chains (6) are symmetrically fixedly connected on both sides of the top of the frame (1).

3. The rail hanger according to claim 1, characterized in that: An annular handrail (7) is fixedly provided on the frame (1).

4. The rail hanger according to claim 1, characterized in that: The frame (1) comprises two end plates (11), a support plate (12) is fixedly arranged between the two end plates (11), a connecting plate (13) is fixedly arranged between the top surface of the support plate (12) and the two end plates (11), the track hook (2) is rotatably mounted on the support plate (12) via a bearing, and an avoidance window (14) is provided on the connecting plate (13) corresponding to the track hook (2).

5. The rail hanger according to claim 4, characterized in that: A plurality of reinforcing plates (15) are fixedly arranged between the connecting plate (13) and the supporting plate (12).

6. The rail hanger according to claim 4, characterized in that: The track hook (2) comprises a rotating shaft (21), the bottom end of the rotating shaft (21) is fixedly connected to a clamping block (22), the width of the clamping block (22) is smaller than the gap between the top ends of two closely aligned tracks (8), and the length of the clamping block (22) is greater than the gap between the top ends of the two closely aligned tracks (8).

7. The rail hanger according to claim 6, characterized in that: The plurality of track hooks (2) are distributed at equal intervals between the two end plates (11); when the track hooks (2) at both ends are in an open position, the gap between the clamping block (22) and the end plate (11) on the same side is greater than the width of the top of the track (8); when the track hooks (2) at both ends are in a lifting position, the gap between the clamping block (22) and the end plate (11) on the same side is less than the width of the top of the track (8).

8. The rail hanger according to claim 6, characterized in that: The synchronous transmission assembly (3) comprises a transmission plate (31) and a transmission arm (32). The transmission plate (31) is arranged on one side of the plurality of rotating shafts (21). The transmission arm (32) is arranged between the rotating shafts (21) and the transmission plate (31). One end of the transmission arm (32) is rotatably connected to the transmission plate (31), and the bottom of the other end is fixedly connected to a first sleeve (33). The first sleeve (33) is fixedly sleeved with the top end of the corresponding rotating shaft (21).

9. The rail hanger according to claim 8, characterized in that: The control handle (4) comprises a driving rod (41), one end of the driving rod (41) is fixedly connected to a cross rod (42), both ends of the cross rod (42) are rotatably sleeved with second sleeves (43), and the second sleeves (43) are fixedly connected to a side of the transmission plate (31) away from the rotating shaft (21).

10. The rail hanger according to claim 9, characterized in that: The limiting member (5) includes a vertically arranged limiting plate (51), the bottom end of the limiting plate (51) is fixedly connected to the frame (1) through a horizontal plate (52), and the top end of the limiting plate (51) is provided with a first limiting groove (53) and a second limiting groove (54) corresponding to the driving rod (41); when the driving rod (41) is embedded in the first limiting groove (53), the track hook (2) is in an open position; when the driving rod (41) is embedded in the second limiting groove (54), the track hook (2) is in a lifting position.

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