Pulley device for hoisting

Abstract

The utility model relates to a pulley device for hoisting, which comprises at least two pulley assemblies, and each pulley assembly comprises a supporting piece, a roller and a connecting piece. The rolling wheel is rotationally connected with the supporting piece, and the rolling wheel is used for being sleeved with a lifting rope; the connecting pieces are connected with the supporting piece, the connecting pieces of the two pulley assemblies stretch out in the opposite directions, the positions, close to each other, of the two connecting pieces are connected with first connecting shafts, and the two first connecting shafts are hinged to hinge pieces. According to the pulley device for hoisting, the cargo hoisting efficiency can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pulley devices, in particular to a pulley device for hoisting. Background Art

[0002] When a ship loads and unloads goods, it is necessary to hoist the goods. Since the goods are usually heavy, multiple lifting points need to be set on the goods. At present, multiple lifting points are mainly set by installing pulleys. Specifically, a lifting rope is sleeved on the roller of a lifting row, and the two ends of the lifting rope are respectively connected to the lifting points of the pulley. The two ends of the lifting rope sleeved on the pulley are connected to the goods. Since the pulley has its own weight, in order to prevent the pulley from suddenly dropping rapidly and causing safety accidents, the pulley needs to be fixed when it is not in the working state. Therefore, the pulley needs to be loosened before hoisting the goods and fixed after hoisting the goods, resulting in low efficiency of pulley hoisting. Summary of the Utility Model

[0003] For this reason, the technical problem to be solved by the utility model is to provide a pulley device for hoisting, which can improve the hoisting efficiency of goods.

[0004] To solve the above technical problem, the utility model provides a pulley device for hoisting, including: at least two pulley assemblies, each pulley assembly including a support member, a roller and a connecting member; the roller is rotatably connected to the support member, and the roller is used for sleeving a lifting rope; the connecting member is connected to the support member, the connecting members of the two pulley assemblies extend in opposite directions, a first connecting shaft is connected at the approaching position of the two connecting members, and a hinge member is hinged to the two first connecting shafts.

[0005] In an embodiment of the utility model, the connecting member includes a first connecting plate and a second connecting plate arranged in parallel, and the first connecting plate and the second connecting plate are respectively connected to the two ends of the first connecting shaft.

[0006] In an embodiment of the utility model, the hinge member is a flexible connecting rope, the connecting member is sleeved on the two first connecting shafts, and the hinge member is located between the first connecting plate and the second connecting plate.

[0007] In an embodiment of the utility model, the support member includes two parallel support plates, the roller is rotatably connected between the two support plates, and a third connecting plate is also connected between the two support plates.

[0008] In an embodiment of the utility model, the third connecting plate is connected with a mounting plate, the mounting plate is located between the first connecting plate and the second connecting plate, the mounting plate is connected with a second connecting shaft, and both the first connecting plate and the second connecting plate are hinged to the second connecting shaft.

[0009] In an embodiment of the present utility model, it further includes a hanging buckle. The second connecting shaft penetrates through the first connecting plate, the second connecting plate, and the mounting plate, and the hanging buckle is hinged to both ends of the second connecting shaft.

[0010] In an embodiment of the present utility model, the planes where the farthest - separated sides of the third connecting plates of the two pulley assemblies are located are coplanar with the plane of one side of the support plate. And on the farthest - separated sides of the two third connecting plates, a first baffle is connected. The first baffle abuts against the support plate, and a first card slot is provided at one end of the first baffle close to the roller.

[0011] In an embodiment of the present utility model, the opposite sides of the third connecting plates of the two pulley assemblies protrude into the space between the support plates. A second baffle is connected to the side of the third connecting plate close to the roller. The second baffle abuts against the support plate, and a second card slot is provided at one end of the second baffle close to the roller.

[0012] In an embodiment of the present utility model, a third card slot for clamping with a lifting rope is provided on the side wall of the roller.

[0013] In an embodiment of the present utility model, a groove is provided at the end of the roller, and the bottom of the groove is rotatably connected to the support member.

[0014] The above - mentioned technical solution of the present utility model has the following advantages compared with the prior art:

[0015] For the pulley device for hoisting described in the present utility model, by hinging a hinge member on the first connecting shafts of the two pulley assemblies, the distance between the pulley assemblies is restricted, preventing one of the pulley assemblies from suddenly and rapidly descending to the ground. Therefore, after the pulley device for hoisting is used, it is not necessary to be fixed, thereby improving the efficiency of cargo hoisting. At the same time, the height of the pulley assemblies can be adjusted by the rotation of the hinge member, so as to be applicable to the lifting points at different heights on the cargo. The arrangement where the convex block abuts against the third connecting plate enables the third connecting plate to limit the rotation angle of the first connecting plate and the second connecting plate, thereby avoiding the collision between the hinge member, the first connecting plate, and the second connecting plate on one pulley assembly and the roller of the other pulley assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to make the content of the present utility model easier to be clearly understood, the following further details the present utility model according to the specific embodiments of the present utility model and in combination with the attached drawings, where

[0017] Figure 1 is a schematic structural diagram of a pulley device for hoisting of the present utility model;

[0018] Figure 2 is Figure 1 a partial structural schematic diagram of

[0019] Figure 3 is Figure 2 a structural schematic diagram from another angle of

[0020] Explanation of reference numerals in the drawings of the specification: 1. Support member; 2. Roller; 3. Connecting member; 4. Hinge member; 5. Suspension buckle; 11. First baffle; 12. First card slot; 13. Mounting plate; 14. Third connecting plate; 15. Second baffle; 16. Second card slot; 17. Support plate; 21. Third card slot; 22. Groove; 31. First connecting shaft; 32. First connecting plate; 33. Second connecting plate; 34. Second connecting shaft. Specific implementation mode

[0021] The following further describes the present utility model in conjunction with the drawings and specific embodiments, so that those skilled in the art can better understand the present utility model and be able to implement it, but the embodiments cited do not limit the present utility model.

[0022] Referring to Figures 1 to 3 As shown, a pulley device for hoisting of the present utility model includes at least two pulley assemblies. The pulley assembly includes a support member 1, a roller 2 and a connecting member 3; the roller 2 is rotatably connected to the support member 1, and the roller 2 is used for sleeving a lifting rope; the connecting member 3 is connected to the support member 1, and the connecting members 3 of the two pulley assemblies extend in opposite directions, and a first connecting shaft 31 is connected to the approaching positions of the two connecting members 3, and a hinge member 4 is hinged to the two first connecting shafts 31.

[0023] In a pulley device for hoisting of this embodiment, a hinge member 4 is hinged to the first connecting shafts 31 of the two pulley assemblies, so as to limit the distance between the pulley assemblies and prevent one of the pulley assemblies from suddenly and rapidly descending to the ground. Therefore, the pulley device for hoisting does not need to be fixed after use, thereby improving the efficiency of hoisting goods. At the same time, the height of the pulley assembly can be adjusted by the rotation of the hinge member 4, so as to be applicable to lifting points at different heights on the goods.

[0024] The pulley device for hoisting includes at least two pulley assemblies. In this embodiment, there are two pulley assemblies. The pulley assembly includes a support member 1, a roller 2 and a connecting member 3.

[0025] The support member 1 includes two parallel support plates 17. The roller 2 is connected between the support plates 17 and rotatably connected to the support plates 17, so that the roller 2 is rotatably connected to the support member 1. The roller 2 is used for sleeving a suspension rope. A third card slot 21 for clamping the suspension rope is provided on the side wall of the roller 2, so as to prevent the suspension rope from detaching from the roller 2. A groove 22 is provided at the end of the roller 2. The bottom of the groove 22 is rotatably connected to the support member 1. The provision of the groove 22 is for accommodating the structure of the rotatable connection between the support member 1 and the groove 22, so that the overall width of the pulley assembly is smaller, and thus the volume of the pulley assembly is smaller.

[0026] A third connecting plate 14 is connected between the two support plates 17. The planes where the farthest sides of the third connecting plates 14 of the two pulley assemblies are located are coplanar with the plane where one side of the support plate 17 is located, that is, the outside of the third connecting plate 14 is located at the end of the space between the support plates 17. A first baffle 11 is vertically connected to the farthest sides of the two third connecting plates 14. The first baffle 11 abuts against the side wall of the support plate 17. A first card slot 12 is provided at one end of the first baffle 11 close to the roller 2. The provision of the first card slot 12 can prevent the suspension rope located on the roller 2 from colliding with the first baffle 11 during movement, and can also prevent the suspension rope from moving around in the space between the support plates 17. The opposite sides of the third connecting plates 14 of the two pulley assemblies protrude from the space between the support plates 17. A second baffle 15 is vertically connected to the side of the protruding position of the third connecting plate 14 close to the roller 2. The second baffle 15 abuts against the support plate 17, and the second baffle 15 is parallel to the first baffle 11. A second card slot 16 is provided at one end of the second baffle 15 close to the roller 2. The function of the second card slot 16 is the same as that of the first card slot 12, and will not be elaborated here.

[0027] The connecting member 3 is connected to the supporting member 1. The connecting members 3 of the two pulley assemblies extend in opposite directions. A first connecting shaft 31 is connected to the approaching positions of the two connecting members 3. An articulated member 4 is articulated to the two first connecting shafts 31. Specifically, the connecting member 3 includes a first connecting plate 32 and a second connecting plate 33 arranged in parallel, and the first connecting plate 32 and the second connecting plate 33 have the same structure. On the side of the third connecting plate 14 away from the roller 2, a mounting plate 13 is vertically connected. The mounting plate 13 is located between the first connecting plate 32 and the second connecting plate 33. The mounting plate 13 is connected with a second connecting shaft 34. Both the first connecting plate 32 and the second connecting plate 33 are articulated to the second connecting shaft 34, so that the first connecting plate 32 and the second connecting plate 33 can rotate. Protrusions are provided at the positions where the first connecting plate 32 and the second connecting plate 33 approach the space protruding between the supporting parts of the third connecting plate 14. The protrusions can abut against the third connecting plate 14, so that the third connecting plate 14 can limit the rotation angles of the first connecting plate 32 and the second connecting plate 33, and further prevent the articulated member 4, the first connecting plate 32 and the second connecting plate 33 on one pulley assembly from colliding with the roller 2 of the other pulley assembly. The first connecting plate 32 and the second connecting plate 33 are respectively connected to the two ends of the first connecting shaft 31. The first connecting plates 32 of the two pulley assemblies extend in opposite directions, and the second connecting plates 33 of the two pulley assemblies also extend in opposite directions. The first connecting shaft 31 is located at one end where the two first connecting plates 32 approach each other and the two second connecting plates 33 approach each other. The articulated member 4 can be regarded as a flexible connecting rope. The connecting rope is connected end to end to form a loop and is sleeved on the two first connecting shafts 31. The articulated member 4 is located between the first connecting plate 32 and the second connecting plate 33, so as to prevent the articulated member 4 from detaching from the first connecting shaft 31. The setting of the flexible connecting rope can prevent the distance between the two pulley assemblies from being too large. At the same time, through the rotation of the articulated member 4, the distance between the two flexible connecting ropes can also be freely adjusted within the movable range, so that the pulley device for hoisting is applicable to the lifting points at different heights on the goods. In another embodiment, the articulated member 4 can be regarded as an articulated rod. The articulated rod is rod-shaped and the two ends of the articulated rod are respectively articulated to the two first connecting shafts 31. The setting of the articulated rod enables a certain distance to be always maintained between the first connecting shafts 31, so as to prevent the two pulley assemblies from directly colliding during the movement process.

[0028] The second connecting shaft 34 penetrates through the first connecting plate 32, the second connecting plate 33 and the mounting plate 13. The second connecting shaft 34 is connected to the hanging buckle 5. The hanging buckle 5 is integrally arc-shaped. The two ends of the hanging buckle 5 are respectively articulated to the two ends of the second connecting shaft 34, so that the hanging buckle 5 can rotate. The hanging buckle 5 is used for connecting with an external hanging row.

[0029] During use, the hanging buckles 5 of the two pulley assemblies are connected to the two ends of a lifting rope on the lifting row, and then the goods to be lifted are connected to the lifting rope on the roller 2. When there is a height difference in the lifting points on the goods, the distance between the two pulley assemblies is adjusted through the hinge member 4 so that the lifting rope can be connected to the lifting point. When the pulley device for lifting is not in the working state, when one of the pulley assemblies descends, the other pulley assembly ascends under the pulling of the lifting rope on the lifting row. Since the hinge member 4 is hinged on the first connecting shaft 31 of the two pulley assemblies, the two pulley assemblies will not continue to move after moving to the maximum movable distance.

[0030] A pulley device for lifting of the present utility model restricts the distance between the pulley assemblies by hinging a hinge member 4 on the first connecting shaft 31 of the two pulley assemblies, preventing one of the pulley assemblies from suddenly and rapidly descending to the ground. Therefore, it is not necessary to fix the pulley device for lifting after use, thus improving the efficiency of goods lifting. At the same time, the height of the pulley assemblies can be adjusted by the rotation of the hinge member 4, so as to be applicable to the lifting points with different heights on the goods. The arrangement that the convex block abuts against the third connecting plate 14 enables the third connecting plate 14 to limit the rotation angle of the first connecting plate 32 and the second connecting plate 33, thereby avoiding the hinge member 4, the first connecting plate 32 and the second connecting plate 33 on one pulley assembly from colliding with the roller 2 of the other pulley assembly.

[0031] Obviously, the above embodiments are merely examples given for clear illustration and are not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation manners here. And the obvious changes or modifications derived therefrom are still within the protection scope of the creation of the present utility model.

Claims

1. A lifting pulley device, characterized in that: include: at least two pulley assemblies, each pulley assembly comprising a support member, a roller and a connecting member; The roller is rotatably connected to the support member, and the roller is used for sleeve-mounting the suspension rope; The connecting member is connected to the supporting member, the connecting members of the two pulley assemblies extend in opposite directions, the two connecting members are connected to a first connecting shaft at positions close to each other, and the two first connecting shafts are hinged with hinges.

2. The hoisting pulley device according to claim 1, characterized in that: The connecting member includes a first connecting plate and a second connecting plate which are arranged in parallel, and the first connecting plate and the second connecting plate are respectively connected to two ends of the first connecting shaft.

3. The hoisting pulley device according to claim 2, characterized in that: The hinged component is a flexible connecting rope, the connecting component is sleeved on the two first connecting shafts, and the hinged component is located between the first connecting plate and the second connecting plate.

4. The hoisting pulley device according to claim 2, characterized in that: The support member comprises two support plates arranged in parallel, the roller is rotatably connected between the two support plates, and a third connecting plate is also connected between the two support plates.

5. The hoisting pulley device according to claim 4, characterized in that: The third connecting plate is connected to a mounting plate, the mounting plate is located between the first connecting plate and the second connecting plate, the mounting plate is connected to a second connecting shaft, and the first connecting plate and the second connecting plate are both hinged to the second connecting shaft.

6. The hoisting pulley device according to claim 5, characterized in that: It also includes a hanging buckle, the second connecting shaft passes through the first connecting plate, the second connecting plate and the mounting plate, and the hanging buckle is hinged to both ends of the second connecting shaft.

7. The hoisting pulley device according to claim 4, characterized in that: The plane where the farthest side of the third connecting plates of the two pulley assemblies is located is coplanar with the plane where one side of the support plate is located, and a first baffle is connected to the farthest side of the two third connecting plates, the first baffle is against the support plate, and a first slot is provided at one end of the first baffle close to the roller.

8. The hoisting pulley device according to claim 4, characterized in that: The opposite sides of the third connecting plates of the two pulley assemblies protrude from the space between the support plates, and a second baffle is connected to one side of the third connecting plate close to the roller, the second baffle is abutted against the support plate, and a second slot is provided at one end of the second baffle close to the roller.

9. The hoisting pulley device according to claim 1, characterized in that: A third clamping groove for clamping with a sling rope is provided on the side wall of the roller.

10. The hoisting pulley device according to claim 1, characterized in that: A groove is provided at the end of the roller, and the bottom of the groove is rotatably connected to the support member.

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