CN219194305U - Hoist and mount self-traction ware and lifting device - Google Patents

Abstract

The utility model discloses a hoisting self-traction device and hoisting equipment, relates to the technical field of hoisting tools, and aims to solve the problems of complex operation and low operation efficiency in the process of hoisting hoisted objects. The hoisting self-traction device comprises a first pulley assembly, a first connecting piece and a first buckle. The first pulley assembly comprises a first base and a first pulley, and the first pulley is rotatably installed on the first base. One end of the first connecting piece is connected with the first base, the other end of the first connecting piece is connected with the first buckle, and the first buckle is further used for being detachably connected with a preset lifting object. The hoisting self-traction device provided by the utility model is used for simplifying the operation steps of hoisting a preset hoisted object.

Description

Hoist and mount self-traction ware and lifting device

Technical Field

The application relates to the technical field of lifting tools, in particular to a self-traction device for lifting and lifting equipment.

Background

In the construction of signal towers or roofs, large-sized objects (such as lifting objects of base station equipment remote radio units, antennas or related auxiliary materials) are often required to be lifted, in the lifting process, in order to prevent the objects or the signal towers from being damaged by collision, a rope which is pulled downwards in an inclined manner is additionally added to the lifted objects, the lifting objects are pulled by manpower to the direction away from the signal towers, and the shaking of the lifting objects in the lifting process and the collision to the signal towers are avoided.

However, in the lifting process of the lifting object, the rope on the upper side of the lifting object applies an upward tension to the object, and the added rope pulled obliquely downwards applies an obliquely downward tension to the object, so that the lifting object is prevented from moving upwards while the gesture and the distance between the lifting object and the signal tower body (or building) are controlled. And the two ropes at least need two operators below to operate, the operation process is complex, and the lifting operation efficiency is low.

Disclosure of Invention

The utility model aims to provide a hoisting self-traction device and hoisting equipment. Aims to solve the problems of complex operation and low operation efficiency in the process of lifting the lifting object.

In order to achieve the above purpose, the present application adopts the following technical scheme:

in a first aspect, the present application provides a hoist and mount self-traction ware, including first pulley assembly, first connecting piece and first buckle. The first pulley assembly comprises a first base and a first pulley, and the first pulley is rotatably installed on the first base. One end of the first connecting piece is connected with the first base, the other end of the first connecting piece is connected with the first buckle, and the first buckle is further used for being detachably connected with a preset lifting object.

Optionally, the first base includes a first mounting, two first supports, and a first shaft. The two first supporting pieces are connected to the same side of the first mounting piece, and the two first supporting pieces are opposite and are arranged at intervals. The first shaft rod is installed between the two first supporting pieces, and two axial ends of the first shaft rod are connected with the two first supporting pieces. The first pulley is sleeved on the first shaft lever and is rotatably installed relative to the first shaft lever, and a gap is reserved between the first pulley and the first installation piece.

Optionally, the first pulley assembly further includes a second connecting member, and the second connecting member includes a first suspension ring and a first connecting seat. The first hanging ring forms a first through hole connected with the first connecting piece. One end of the first connecting seat is connected with the first hanging ring, and the other end of the first connecting seat is connected with the first mounting piece, so that the first hanging ring is located on one side, far away from the first pulley, of the first mounting piece.

Optionally, a lifting ring through hole is formed in the first mounting piece, and one end, away from the first lifting ring, of the first connecting seat penetrates through the lifting ring through hole and is rotationally connected with the first mounting piece.

Optionally, the first buckle is a mountain climbing buckle structure and comprises a first buckle body, a first movable rod and a first screw sleeve; the first buckle body encloses a first opening, and one end of the first movable rod is riveted with one end of the first buckle body so as to enable the first movable rod to rotate relative to the first buckle body; when the other end of the first movable rod rotates to be close to the other end of the first buckle body, the other end of the first movable rod is connected with the other end of the first buckle body through the first screw sleeve and used for sealing the first opening.

Optionally, the first connecting member is a metal chain.

Optionally, the hoisting self-traction device further comprises a second buckle, and one end, close to the first pulley assembly, of the metal chain is detachably connected with the hanging ring through the second buckle.

Optionally, the self-hauling retractor further comprises a second pulley assembly, the second pulley assembly comprising at least one second pulley and a second base. The second base comprises a second mounting piece, two second supporting pieces and a second shaft. The two second supporting pieces are connected to the same side of the second mounting piece, and the two second supporting pieces are opposite and are arranged at intervals. The second shaft rod is arranged between the two second supporting pieces, and the two axial ends of the second shaft rod are connected with the two second supporting pieces. The second pulley is sleeved on the second shaft and is rotatably installed relative to the second shaft, and a gap is reserved between the second pulley and the second installation piece. And the first buckle is detachably connected with the second pulley assembly.

Optionally, the second pulley assembly further includes a third connecting piece, one end of the third connecting piece is connected with one side of the second mounting piece far away from the second pulley, and the other end of the third connecting piece is provided with a second through hole for detachable connection of the third connecting piece and the first buckle.

On the other hand, the application also provides hoisting equipment, including hoist and mount self-traction ware, preset hoist and mount thing, fixed pulley subassembly and hawser in the first aspect. The first buckle is connected with a preset hoisting object, and the fixed pulley assembly is arranged above the preset hoisting object. One end of the cable is connected with a preset hoisting object, and the other end of the cable sequentially passes through the fixed pulley assembly and the first pulley assembly. The cable can control the preset hoisted object to ascend or descend and can adjust the relative position state of the preset hoisted object through the hoisting self-traction device.

In yet another aspect, the present application further provides a hoisting device, including a hoisting self-tractor provided with the second pulley assembly in the first aspect, a preset hoisted object, a fixed pulley assembly and a cable.

The first buckle is connected with a preset hoisting object, and the fixed pulley assembly is arranged above the preset hoisting object. One end of the cable is connected close to the fixed pulley assembly, and the other end of the cable sequentially passes through the second pulley assembly, the fixed pulley assembly and the first pulley assembly. The cable can control the preset hoisted object to ascend or descend and can adjust the relative position state of the preset hoisted object through the hoisting self-traction device.

Therefore, in the process of lifting the preset lifting object by using the self-traction device, the first buckle of the self-traction device can be connected with the preset lifting object, one end of the cable is connected with the preset lifting object, and the other end of the cable can sequentially pass through the fixed pulley assembly and the first pulley assembly, so that the cable can be matched with the self-traction device to form a triangular stress structure. Thus, the operator B can pull the other end of the cable at the right position at the bottom of the high-rise building to control the rising or falling of the preset hoisted object.

Based on the control, under the high-rise building, only one operator B is needed to be matched with the hoisting self-traction device, the control of the ascending and descending control of the preset hoisting object is realized, the self angle posture and the position and other relative position states of the preset hoisting object can be simultaneously controlled, and only one end of the cable is needed to be pulled, so that additional operation steps are not needed. Compared with other related technical schemes, the technical scheme of the hoisting equipment provided by the embodiment of the application does not need to lead an additional operator to pull the preset hoisting object obliquely downwards so as to control the angle posture, the position and other relative position states of the preset hoisting object, and meanwhile, the hoisting equipment does not cause resistance to the lifting process of the preset hoisting object. The method has the advantages of simple operation process and manpower and material resource saving, and is beneficial to improving the working efficiency of the lifting process.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a hoisting operation in the related art;

fig. 2 is a schematic diagram of a hoisting operation process of a hoisting device according to an embodiment of the present application;

FIG. 3 is a schematic view of one construction of the self-hauling machine shown in FIG. 2;

FIG. 4 is a partial force analysis diagram of the self-hauling machine shown in FIG. 2;

FIG. 5 is a schematic illustration of one construction of the first pulley assembly shown in FIG. 3;

FIG. 6 is a front elevational view of the partial structure of the first pulley assembly shown in FIG. 5;

FIG. 7 is a schematic view of a structure of the first buckle shown in FIG. 3;

fig. 8 is a schematic structural view of a hoisting self-tractor including a second pulley assembly according to an embodiment of the present application.

Reference numerals:

011-signal tower, 012-pulley; 013-lifting objects; 014—pull rope;

100-hoisting equipment;

10-hoisting the self-traction device;

11-a first pulley assembly; 111-a first base; 1111—a first mount; 1112-a first support; 1113-a first shaft; 1114-a lifting ring through hole; 112-a first pulley; 113-a second connector; 1131-a first via; 1132-a first lifting ring; 1133-a first connection mount;

12-a first connector; 13-a first catch; 131-a first button body; 132-a first movable bar; 133-a first sleeve; 14-a second buckle;

15-a second pulley assembly; 151-a second base; 1511-a second mount; 1512-a second support; 1513-a second shaft; 152-a second pulley; 153-third connector; 1531-a second via;

20-fixed pulley assembly; 30-a cable; 40-presetting a hoisted object;

200-high-rise building.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", etc., are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the field of communications, operators often need to hoist large objects (such as remote radio units of base station equipment, antennas, or related auxiliary materials) during outdoor operation, and the large objects are used for being installed at a higher position or being maintained and replaced at a higher position. As shown in fig. 1, fig. 1 is a schematic diagram of a hoisting operation in the related art. The operator a 'may be located on the signal tower 011 and install a pulley 012 at a corresponding position, before hoisting the hoisted object 013, one end of the first traction rope 014 needs to pass through the pulley 012 and move towards the ground to connect the hoisted object 013, and the operator B' may pull the other end of the traction rope 014 below to control the lifting or lowering of the hoisted object 013.

With continued reference to fig. 1, in order to control the relative position state of the hoisted object 013, for example, the distance between the hoisted object 013 and the signal tower 011 is relatively, so as to avoid the hoisted object 013 contacting or colliding with the signal tower 011. The second traction rope 014 can be connected to the corresponding position of the hoisted object 013 close to the lower side, the operator C 'can traction the second traction rope 014 at the lower side, the operator C' can also exert a lateral force far away from the signal tower 011 on the hoisted object 013 by traction of the second traction rope 014 when the hoisted object 013 is controlled to ascend or descend by cooperation with the operator B ', the hoisted object 013 can be kept away from the signal tower 011 to avoid contact with the signal tower 011, and the angle and the position posture of the hoisted object 013 can be controlled by the lateral force, so that the hoisted object 013 can be stably hoisted to the position near the operator A' on the signal tower 011.

During the handling operation described above, the operator B 'will exert an upward pulling force on the load 013 via the first pulling rope 014, while the operator C' will exert a diagonally downward pulling force on the load 013 via the second pulling rope 014. In this way, the operator C' can also hinder the upward movement of the hoisted object 013 while controlling the posture of the hoisted object 013 itself and the distance from the signal tower 011. In addition, the traction ropes 014 at the two ends also need at least two operators to perform operation control, so that the operation process is complex, and the lifting operation efficiency is low.

To solve the above problems, as shown in fig. 2, the present embodiment provides a lifting apparatus 100, and the lifting apparatus 100 may include a self-traction device 10, a fixed pulley assembly 20, a cable 30, and a preset lifting object 40 to be lifted. In a high-rise building 200 (such as a signal tower or a high-rise building), an operator a may install the fixed sheave assembly 20 on one side of the high-rise building 200 if a large object (i.e., one of the predetermined hoisted objects 40) such as a remote radio unit, an antenna, or related auxiliary materials of the base station equipment needs to be installed or maintained. If the high-rise building 200 has a protruding structure on this side, the fixed sheave assembly 20 and the protruding structure may be directly connected by bolts or wires. If the high-rise building 200 does not have a protruding structure on the side, the fixed sheave assembly 20 may be mounted on the end of the load-bearing frame remote from the high-rise building 200 by erecting or mounting an externally applied load-bearing frame and connecting members such as bolts or wires. In this manner, the predetermined hoist 40 located below can be hoisted by the fixed sheave assembly 20 so that the operator a receives the predetermined hoist 40 at the high-rise building 200.

Wherein, as shown in fig. 3, fig. 3 is a schematic view of a construction of the self-traction apparatus 10 shown in fig. 2. The self-hauling hauler 10 may include a first pulley assembly 11, a first connection 12 and a first buckle 13. The first pulley assembly 11 may include a first base 111 and a first pulley 112, and the first pulley 112 may be rotatably mounted on the first base 111. One end of the first connecting piece 12 may be connected to the first base 111, the other end of the first connecting piece 12 may be connected to the first buckle 13, and the first buckle 13 may be detachably connected to a preset hanging object.

Based on this, in the process of lifting the preset lifting object 40, referring to fig. 2 and 3, the first buckle 13 of the self-traction apparatus 10 may be connected with the preset lifting object 40, one end of the cable 30 may be connected with the preset lifting object 40, and the other end of the cable 30 may sequentially pass through the fixed pulley assembly 20 and the first pulley assembly 11, so that the cable 30 may be cooperated with the self-traction apparatus 10 to form a triangle stress structure. Thus, the operator B may pull the other end of the cable 30 at a position right at the bottom of the high-rise building 200 to control the ascent or descent of the preset lift 40. Wherein, as shown in fig. 4, fig. 4 is a partial force analysis diagram of the self-traction apparatus 10 shown in fig. 2. The operator B may apply a direct force Fa to the cable 30, and the cable 30 may bend at the first pulley assembly 11 to form an obtuse angle due to the combined action of gravity and the force Fa. In this way, the force Fa can be decomposed at the first pulley assembly 11 into a lifting force F1 approximately parallel to and downward of the cable 30 above the first pulley assembly 11 for controlling the raising or lowering of the predetermined hoist 40 by the fixed pulley assembly 20. In addition, the force Fa can be decomposed into a control force F2 approximately parallel to the length direction of the self-traction apparatus 10 and rightward at the first pulley assembly 11 for controlling the preset-lifting object 40 to right far from the left-hand high-rise building 200 by the self-traction apparatus 10. Thereby preventing the preset-hoist 40 from contacting or colliding with the high-rise building 200 on the left side. In addition, the control force F2 can also control the self-angle posture of the preset hoisted object 40 through the hoisting self-tractor 10.

In the process of lifting the preset lifting object 40 by the self-lifting tractor 10, only one operator B is needed to be matched with the self-lifting tractor 10 under the high-rise building 200, the control of the lifting and descending control of the preset lifting object 40 is realized, the relative states such as the angle posture and the position of the preset lifting object 40 can be simultaneously controlled, and only one end of the cable rope 30 is needed to be pulled, so that additional operation steps are not needed. Compared with the related art solution in fig. 1, the technical solution of the lifting device 100 provided in the embodiment of the present application does not need to pull the preset lifting object obliquely downwards by an additional operator to control the angular posture, the position and other position states of the preset lifting object, and meanwhile, the lifting process of the preset lifting object is not caused to be resistant. The method has the advantages of simple operation process and manpower and material resource saving, and is beneficial to improving the working efficiency of the lifting process.

In the above embodiment, the acting force Fa, the lifting force F1, and the control force F2 are described. If the high-rise building 200 is located at the left side of the predetermined hoisted object 40, the acting force Fa may be an acting force inclined in the lower right direction. The lifting force F1 may be directed vertically downward or may be a force inclined downward and rightward. The direction of the control force F2 may be horizontal to the right, or may be inclined downward to the right or inclined upward to the right. The included angle between the lifting force F1 and the vertical direction may be smaller than the included angle between the acting force Fa and the vertical direction. When the direction of the control force F2 is inclined downward and rightward, the angle formed by the control force F2 and the vertical direction may be larger than the angle formed by the acting force Fa and the vertical direction. The present application is not limited in this regard.

In some embodiments, as shown in fig. 5, fig. 5 is a schematic structural view of the first pulley assembly 11 shown in fig. 3. The first base 111 may include a first mount 1111, two first supports 1112, and a first shaft 1113, among other things. The two first supports 1112 may be connected to the same side of the first mount 1111 with opposite and spaced apart first supports 1112. The first shaft 1113 may be installed between the two first supports 1112, and two axial ends of the first shaft 1113 may be connected to the two first supports 1112, and the first shaft 1113 may be connected to the first supports 1112 through nuts, or may be connected to the two components through riveting or other connection methods. The first pulley 112 may be sleeved on the first shaft 1113, such that the first pulley 112 may be rotatably mounted with respect to the first shaft 1113, and a gap is provided between the first pulley 112 and the first mounting member 1111 for receiving the cable 30 therethrough.

The first supporting members 1112 located at two sides of the first pulley 112 bear the load of connecting the first pulley 112, and meanwhile, can prevent the cable 30 between the first pulley 112 and the first mounting member 1111 from being separated from the first pulley assembly 11, i.e. the cable 30 can maintain a rolling connection state with the first pulley 112, which is beneficial to reducing the friction resistance between the cable 30 and the first pulley assembly 11 in the process of lifting the preset lifting object 40. In addition, for the sake of simplifying the components, a first support 1112 may be installed and connected to only one side of the first installation 1111, and the rotatable first pulley 112 may be connected to the first shaft 1113. The first mounting member 1111 and the first supporting member 1112 may have a plate-like structure or a rod-like structure, and the first mounting member 1111 and the first supporting member 1112 may have a separate connection structure or an integrally formed base structure. The present application is not limited in this regard.

To facilitate coupling the first coupling member 12 and the first base 111 of fig. 3, and with continued reference to fig. 5, the first pulley assembly 11 may further include a second coupling member 113, and the second coupling member 113 may be a rod-like structure or a plate-like structure. The second connecting member 113 may be located at a side of the first mounting member 1111 away from the first pulley 112 and connected to the first mounting member 1111, and the second connecting member 113 is provided with a first through hole 1131, and the first through hole 1131 is used for connecting the first connecting member 12.

When connected to one end of the first connecting member 12 through the second connecting member 113. The first connector 12 may be a rope, a metal chain, a wire, a rod-like structure, or the like. In this way, due to the first connecting piece 12, the first pulley assembly 11 and the first buckle 13 are connected, and meanwhile, a certain distance can be kept between the first pulley assembly 11 and the first buckle 13, so that the cables 30 on two sides of the fixed pulley assembly 20 are in a position close to the preset hoisting object 40, and a certain distance can be kept by hoisting the self-traction device 10. If the length of the first link 12 is too long, the component force of the lifting force F1 is greatly reduced, and a larger force Fa is required to be provided without changing the weight of the preset weight 40, which is inconvenient to operate. If the length of the first connecting member 12 is too small, the component of the control force F2 is greatly reduced, and a larger force Fa needs to be provided under the condition that the weight of the preset suspended object 40 is unchanged, so that the relative position state of the preset suspended object 40 is inconvenient to operate and control. And in case the length of the first link 12 is too small, a portion of the cable 30 near the first pulley assembly 11 may also contact and rub against the predetermined hoisted object 40, thereby causing greater resistance.

Based on this, when the first connecting member 12 is provided, the length of the first connecting member 12 can be maintained between 20cm and 60cm (including 20cm and 60 cm), and sliding contact between the cable 30 and the preset hoisted object 40 can be avoided while the relative position state of the preset hoisted object 40 is conveniently controlled, so that the resistance in the hoisting process can be reduced.

When the first connecting piece 12 and the first buckle 13 are connected, if the first connecting piece 12 is in a rope structure, one end of the first connecting piece 12 can be directly connected with the first buckle 13 in a binding way. At the first pulley assembly 11, the other end of the first link 12 may be bound to the first through hole 1131 so that the first link 12 may be connected with the first base 111 through the second link 113.

In addition, as shown in fig. 2, the first connecting piece 12 may also be a metal chain, and when the first buckle 13 is connected, the first buckle 13 of the mountain climbing buckle structure and one end, far away from the first pulley assembly 11, of the first connecting piece 12 of the metal chain structure may be directly detachably connected. When connecting the first connecting member 12 and the second connecting member 113, the self-lifting tractor 10 may further include a second buckle 14, where the second buckle 14 may be connected with the loop buckle of the metal chain and the first through hole at the same time, so that an end of the first connecting member 12 of the metal chain structure near the first pulley assembly 11 may be detachably connected with the second connecting member 113 through the second buckle 14. In this way, when the first connecting piece 12 and the first pulley assembly 11 are convenient to connect and install, the effective connection length of the first connecting piece 12 can be adjusted through the different ring buckles of the second buckle 14 and the metal chain, and the connection is very convenient.

Illustratively, to facilitate connection of the second connecting member 113, as shown in fig. 6, fig. 6 is a front view of a partial structure of the first pulley assembly 11 shown in fig. 5. The second connection 113 may include a first suspension ring 1132 and a first connection seat 1133. The first hanging ring 1132 may form a first through hole 1131 for connecting the first connecting member 12, one end of the first connecting seat 1133 may be connected with the first hanging ring 1132, and the other end of the first connecting seat 1133 may be connected with the first mounting member 1111, so that the first hanging ring 1132 may be located at a side of the first mounting member 1111 away from the first pulley 112.

When the first mounting member 1111 and the first connecting seat 1133 are connected and mounted, with continued reference to fig. 6, the first mounting member 1111 may be provided with a lifting ring through hole 1114, and one end of the first connecting seat 1133, which is far from the first lifting ring 1132, may pass through the lifting ring through hole 1114 and be rotatably mounted and connected with the first mounting member 1111. Facilitating flexible placement of the first sheave assembly 11 during operation. Wherein, when rotating and connecting first connecting seat 1133 and first mounting 1111, because the one end that first connecting seat 1133 kept away from first rings 1132 is located the one side that first mounting 1111 kept away from first rings 1132, can prevent first connecting seat 1133 break away from rings through-hole 1114 through the riveting structure, also can set up the nut of connecting first connecting seat 1133 in one side that first connecting seat 1133 kept away from first rings 1132, can prevent equally that first connecting seat 1133 breaks away from rings through-hole 1114. In addition, the first mounting member 1111 and the first connecting seat 1133 may be directly connected by welding, so that the structure is simple. In some embodiments, as shown in fig. 7, the first clasp 13 may be a mountain climbing clasp structure. The first buckle 13 may include a first buckle body 131, a first movable rod 132, and a first screw cap 133. The first fastening body 131 may enclose a first opening, and one end of the first movable rod 132 may be riveted with one end of the first mouth, so that the first movable rod 132 may rotate relative to the first fastening body 131. When the other end of the first movable rod 132 rotates to be close to the other end of the first button body 131, the other end of the first movable rod 132 may be connected to the other end of the first button body 131 through the first screw sleeve 133 for closing the first opening. The first movable rod 132 may be mounted in a manner of being clamped with the first threaded sleeve 133, so that the first threaded sleeve 133 may simultaneously pass through the first movable rod 132 and a portion of the first buckle body 131. In addition, an external thread may be formed on the first movable rod 132, and a corresponding internal thread may be formed in the first threaded sleeve 133, so that the first threaded sleeve 133 may be simultaneously sleeved with the first movable rod 132 and a portion of the first buckle body 131, thereby enabling the first buckle 13 to be stably connected with the first connecting piece 12 and the preset lifting object 40.

Correspondingly, the second buckle 14 may be a mountain climbing buckle structure as well. The second buckle 14 may include a second buckle body, a second movable rod, and a second screw sleeve. The second buckle body can enclose a second opening, and one end of the second movable rod can be riveted with one end of the second oral head, so that the second movable rod can rotate relative to the second buckle body. When the other end of the second movable rod rotates to be close to the other end of the second buckle body, the other end of the second movable rod can be connected with the other end of the second buckle body through the second threaded sleeve and used for sealing the second opening. The second movable rod can be clamped with the second threaded sleeve, so that the second threaded sleeve can simultaneously pass through the second movable rod and part of the second buckle body. In addition, an external thread may be formed on the second movable rod, and a corresponding internal thread may be formed in the second threaded sleeve, so that the second threaded sleeve may be sleeved with the second movable rod and a portion of the second buckle body at the same time, so that the second buckle 14 may be stably connected with the first connecting piece 12 and the first pulley assembly 11.

In the above embodiment, when the preset hoist 40 to be hoisted from the tractor 10 is hoisted by the cable 30, a force slightly larger than the self weight of the preset hoist 40 is required. In order to relieve the forces when lifting the predetermined lifting object 40. As shown in fig. 8, the self-hauling device 10 may further include a second pulley assembly 15.

By way of example, with continued reference to fig. 8, the second pulley assembly 15 may include a second base 151 and at least one second pulley 152. The second base may include a second mount 1511, two second supports 1512, and a second shaft 1513, among other things. Two second supports 1512 may be coupled to the same side of the second mount 1511, with opposing and spaced apart second supports 1512. The second shaft 1513 may be installed between the two second supports 1512, and both axial ends of the second shaft 1513 may be connected to the two second supports 1512, the second shaft 1513 may be connected to the second supports 1512 by nuts, or the two members may be connected by caulking or other connection methods. At least one second pulley 152 may be sleeved on the second shaft 1513, such that the second pulley 152 may be rotatably mounted with respect to the second shaft 1513, and a gap is provided between the second pulley 152 and the second mounting member 1511 for receiving the cable 30 therethrough.

For the installation position of the second pulley assembly 152, the end of the first link 12 remote from the first pulley assembly 11 may be installed in connection with the second pulley assembly 152. The first coupling member 12 and the second pulley assembly 15 may also be connected using the first clasp 13 at the same time, i.e. the first clasp 13 may also be detachably connected with the second pulley assembly 15. It is only necessary that the first pulley assembly 11 and the second pulley assembly 15 be located at opposite ends of the first link 12, which is not limited in this application.

It should be noted that the main structures of the first pulley assembly 11 and the second pulley assembly 15 may be the same, except that only one first pulley 112 is required in the first pulley assembly 11. While in the second pulley assembly 15, the number of the second pulleys 152 is at least one, but may be two, three or more.

For example, with continued reference to fig. 8, the second pulley assembly 15 may further include a third connection member 153, one end of the third connection member 153 may be connected to a side of the second mounting member 1511 remote from the second pulley 152, and the other end of the third connection member 153 may be provided with a second through hole 1531. The third connecting member 153 may be directly connected to the first connecting member 12 through the second through hole 1531, or may be detachably connected to the first buckle 13, which is not limited in this application.

In some embodiments, when the self-traction apparatus 10 further includes the second pulley assembly 15, a movable pulley assembly may be formed to facilitate reducing the traction force of the cable 30 side when the self-traction apparatus 10 is used to hoist the preset hoisted object 40, taking the number of the second pulleys 152 as one example.

For example, the first clasp 13 may be connected with the predetermined sling 40, an end of the first connector 12 remote from the first pulley assembly 11, and the second pulley assembly 15. The fixed sheave assembly 20 may be positioned above a predetermined hoist 40, such as at a predetermined location of the high-rise building 200. In this manner, one end of cable 30 may be attached proximate fixed sheave assembly 20, but the location of attachment should be the base of fixed sheave assembly 20 or a fixed point of nearby high rise building 200. The other end of the cable 30 may then be passed through the second pulley assembly 15, the fixed pulley assembly 20, and the first pulley assembly 11 in that order. And the end cable 30 can control the preset hoisted object 40 to ascend or descend and can adjust the relative position state of the preset hoisted object 40 through hoisting the self-tractor 10. In this state, since the second pulley assembly 15 is used as the movable pulley near the predetermined hoist 40, the traction force can be reduced by about half during the traction of the predetermined hoist 40 by the cable 30, thereby facilitating the traction control of the operator.

It should be noted that, in summary of the embodiments of the present application, the fixed pulley assembly 20 may be identical in structure to the first pulley assembly 11 or the second pulley assembly 15, which is not limited in this application.

In the description of the present specification, a particular feature, structure, material, or characteristic may be combined in any suitable manner in one or more embodiments or examples.

The foregoing is merely specific embodiments of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions easily conceivable by those skilled in the art within the technical scope of the present application should be covered in the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (10)

1. A hoist self-traction device, comprising:

the first pulley assembly comprises a first base and a first pulley, and the first pulley is rotatably arranged on the first base;

one end of the first connecting piece is connected with the first base; the method comprises the steps of,

the first buckle, the other end of first connecting piece with first buckle is connected, just first buckle still is used for with predetermineeing hoist and mount thing and can dismantle the connection.

2. The hoist self-traction apparatus of claim 1, characterized in that the first base includes:

a first mounting member;

the two first supporting pieces are connected to the same side of the first mounting piece, and the two first supporting pieces are opposite and are arranged at intervals; the method comprises the steps of,

the first shaft rod is arranged between the two first supporting pieces, and the two axial ends of the first shaft rod are connected with the two first supporting pieces; the first pulley is sleeved on the first shaft rod, is rotatably installed relative to the first shaft rod, and has a gap with the first installation piece.

3. The hoist self-traction apparatus of claim 2, characterized in that the first sheave assembly further comprises a second link comprising:

the first hanging ring is used for forming a first through hole connected with the first connecting piece; the method comprises the steps of,

and one end of the first connecting seat is connected with the first lifting ring, and the other end of the first connecting seat is connected with the first mounting piece, so that the first lifting ring is positioned on one side, away from the first pulley, of the first mounting piece.

4. The hoisting self-traction apparatus according to claim 3, wherein the first mounting member is provided with a hoisting ring through hole, and one end of the first connecting seat, which is far away from the first hoisting ring, passes through the hoisting ring through hole and is rotationally connected with the first mounting member.

5. The hoisting self-traction apparatus according to claim 1, wherein the first buckle is a mountain climbing buckle structure and comprises a first buckle body, a first movable rod and a first screw sleeve; the first buckle body encloses a first opening, and one end of the first movable rod is riveted with one end of the first buckle body so as to enable the first movable rod to rotate relative to the first buckle body; when the other end of the first movable rod rotates to be close to the other end of the first buckle body, the other end of the first movable rod is connected with the other end of the first buckle body through the first screw sleeve and used for sealing the first opening.

6. A lifting self-traction apparatus according to claim 3, wherein the first connecting member is a metal chain;

the hoisting self-traction device further comprises a second buckle, and one end, close to the first pulley assembly, of the metal chain is detachably connected with the hanging ring through the second buckle.

7. The hoist self-retractor of any of claims 1-6, further comprising a second sheave assembly, the second sheave assembly comprising:

at least one second pulley; the method comprises the steps of,

the second base comprises a second mounting piece, two second supporting pieces and a second shaft; the two second supporting pieces are connected to the same side of the second mounting piece, and are opposite and arranged at intervals; the second shaft rod is arranged between the two second supporting pieces, and the two axial ends of the second shaft rod are connected with the two second supporting pieces; at least one second pulley is sleeved on the second shaft rod, is rotatably installed relative to the second shaft rod, and has a gap with the second installation piece;

and the first buckle is detachably connected with the second pulley assembly.

8. The hoisting self-traction apparatus according to claim 7, wherein the second pulley assembly further comprises a third connecting member, one end of the third connecting member is connected with one side of the second mounting member away from the second pulley, and the other end of the third connecting member is provided with a second through hole for detachable connection of the third connecting member with the first buckle.

9. Hoisting equipment, characterized in that includes:

the hoist self-traction device of any one of claims 1-8;

the first buckle is connected with the preset lifting object;

the fixed pulley assembly is arranged above the preset hoisted object; the method comprises the steps of,

one end of the cable is connected with the preset hoisting object, and the other end of the cable sequentially passes through the fixed pulley assembly and the first pulley assembly; the cable can control the preset hoisted object to ascend or descend and can also adjust the relative position state of the preset hoisted object through the hoisting self-traction device.

10. Hoisting equipment, characterized in that includes:

the hoist self-tractor of claim 7 or 8;

the first buckle is connected with the preset lifting object;

the fixed pulley assembly is arranged above the preset hoisted object; the method comprises the steps of,

one end of the cable is connected close to the fixed pulley assembly, and the other end of the cable sequentially passes through the second pulley assembly, the fixed pulley assembly and the first pulley assembly; the cable can control the preset hoisted object to ascend or descend and can also adjust the relative position state of the preset hoisted object through the hoisting self-traction device.

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