A rod holding mechanism for installing and removing the attached pull rod of a tower crane

Abstract

The utility model discloses a rod holding mechanism for installing and disassembling an attached pull rod of a tower crane, which comprises a tower body, an attached pull rod, a lifting sleeve, a rod holding structure and two sets of manual hoists; the rod holding structure comprises a bracket, a boom and a winch; the proximal end of the bracket is fixed to a cross bar of the lifting sleeve through a U-shaped card, and a hinged seat is arranged at the distal end; a hinged ear plate is arranged at the inner end of the boom, and a pulley frame is arranged at the outer end, a lifting pulley is installed on the pulley frame, and a set of guide chain ears are welded on both sides of the pulley frame; a pin shaft is connected between the hinged ear plate and the hinged seat, the winch is installed on the boom, and the end of the steel wire rope of the winch is led out and then hangs down around the lifting pulley; two sets of manual hoists are symmetrically installed on two vertical poles of the lifting sleeve, and the guide chains of the manual hoists are connected to the guide chain ears; the tower crane itself is used to install the rod holding structure to complete the installation and disassembly of the attached pull rod, the rod holding structure can be installed on the tower crane until the tower crane is dismantled after the project is completed, and the rod holding structure is convenient to install and simple to operate.

Description

Technical Field

[0001] The present application relates to the technical field of tower crane structures, and in particular to a rod-holding mechanism for installing and removing an attachment rod of a tower crane. Background Art

[0002] In engineering construction, the tower crane is installed after the main body of the building is installed in the early stage. In this way, when the installation height of the tower crane exceeds the independent height, it is necessary to install an attached tie rod. The installation of the attached tie rod requires hoisting equipment. If additional equipment is built for hoisting, it is obviously not economical and the hoisting cost is high. Therefore, it is necessary to develop a high-quality and low-cost self-contained hoisting equipment. In this case, a customized bracket can solve the problem of installing and removing the attached tie rod. Utility Model Content

[0003] The purpose of the present application is to provide a holding rod mechanism for installing and removing the attached pull rod of a tower crane, which utilizes the components of the tower crane itself to add a holding rod structure to complete the installation and removal of the attached pull rod. The holding rod structure can be installed on the tower crane until the project is completed and the tower crane is dismantled. The holding rod structure is easy to install and simple to operate.

[0004] In order to solve the technical problem of inconvenience in installing and removing the attachment rod of the tower crane in the prior art, the present application provides a rod holding mechanism for installing and removing the attachment rod of the tower crane, which comprises a tower body, an attachment rod, a jacking sleeve, a rod holding structure and two sets of manual hoists; the tower body is built close to the building, the attachment rod is connected between the tower body and the building, and the jacking sleeve is installed on the top of the tower body; the rod holding structure comprises a bracket, a boom and a winch; the proximal end of the bracket is fixed to the cross bar of the jacking sleeve through a U-shaped card, and the distal end is fixed to the cross bar of the jacking sleeve through a U-shaped card An articulated seat is arranged; an articulated ear plate is arranged at the inner end of the boom, and a pulley frame is arranged at the outer end, a lifting pulley is installed on the pulley frame, and a set of guide chain ears are welded on each side of the pulley frame; the articulated ear plate and the articulated seat are connected by a pin shaft, the winch is installed on the boom, the end of the wire rope of the winch is led out and then hangs down around the lifting pulley, and the end of the wire rope is connected to a mine hook; two sets of manual hoists are symmetrically installed on the two vertical poles of the lifting frame, and the guide chains of the two sets of manual hoists are respectively connected to the two sets of guide chain ears.

[0005] Furthermore, the present application provides a rod-holding mechanism for installing and removing a tower crane attachment rod, wherein a slewing structure is provided at the far end of the bracket, and the slewing structure is connected between the articulated seat and the bracket for supporting the boom to perform a slewing motion.

[0006] Furthermore, the present application provides a holding rod mechanism for installing and removing the attached pull rod of a tower crane, wherein the slewing structure includes a slewing sleeve and a turntable, the slewing sleeve includes a sunken circular groove, a plug-in hole is provided in the center of the sunken circular groove, the slewing sleeve is fixed to the far end of the bracket, the turntable has an axial hole, and the turntable is embedded in the sunken circular groove; it also includes a connecting piece, the connecting piece includes a bolt and a slotted nut, the bolt sequentially passes through the hinge seat, the axial hole and the plug-in hole and is locked at its end by the slotted nut.

[0007] Compared with the tower crane construction method of the prior art, the present application has the following advantages: when the attachment rod needs to be installed or removed, the present application does not need to build additional lifting equipment, and the attachment rod can be quickly installed or removed with the help of the tower crane's own holding rod structure; it can not only realize the vertical lifting of the attachment rod, but also realize the rotary lifting of the attachment rod. During vertical lifting, the manual hoist adjusts the inclination angle of the boom, and the winch is started to lift the attachment rod hung on the mine hook. When horizontal rotation is required, the manual hoists on both sides can be pulled in opposite directions. It is easy to operate, simple in structure, and has a low lifting cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 This is a schematic diagram of the structure of a rod holding mechanism for installing and removing a tower crane attachment rod according to the utility model;

[0009] Figure 2 It is a schematic diagram of a holding rod structure in a holding rod mechanism for installing and removing a tower crane attachment rod according to the utility model;

[0010] Figure 3 The utility model is a schematic diagram of a bracket structure in a rod holding mechanism for installing and removing an attached pull rod of a tower crane.

[0011] Among them: 1. Tower body; 2. Attached pull rod; 3. Lifting sleeve; 4. Manual hoist; 5. Bracket; 6. Boom; 7. Winch; 8. U-shaped card; 9. Articulated seat; 10. Articulated ear plate; 11. Pulley frame; 12. Lifting pulley; 13. Guide chain ear; 14. Wire rope; 15. Mine hook; 16. Guide chain; 17. Rotary sleeve; 18. Turntable; 19. Sinking circular groove; 20. Plug hole; 21. Axle hole; 22. Bolt; 23. Slotted nut. DETAILED DESCRIPTION

[0012] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0013] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the equipment or components referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0014] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0015] like Figures 1 to 3 As shown, this embodiment provides a rod holding mechanism for installing and removing the attachment rod of a tower crane, which includes a tower body 1, an attachment rod 2, a lifting sleeve 3, a rod holding structure and two sets of manual hoists 4; the tower body 1 is built close to the building, the attachment rod 2 is connected between the tower body 1 and the building, and the lifting sleeve 3 is installed on the top of the tower body 1; the rod holding structure includes a bracket 5, a boom 6 and a winch 7; the proximal end of the bracket 5 is fixed to the cross bar of the lifting sleeve 3 through a U-shaped card 8, and the distal end is provided with an articulated seat 9; the inner end of the boom 6 is provided with an articulated ear plate 10 , a pulley frame 11 is arranged at the outer end, a lifting pulley 12 is installed on the pulley frame 11, and a set of chain guide ears 13 are welded on both sides of the pulley frame 11; the hinged ear plate 10 and the hinged seat 9 are connected by a pin shaft, the winch 7 is installed on the boom 6, and the end of the steel wire rope 14 of the winch 7 is led out and then hangs down around the lifting pulley 12, and the end of the steel wire rope 14 is connected to the mine hook 15; two sets of manual hoists 4 are symmetrically installed on the two vertical poles of the lifting frame 3, and the guide chains 16 of the two sets of manual hoists 4 are respectively connected to the two sets of chain guide ears 13;

[0016] In order to facilitate the horizontal position adjustment of the attached pull rod 2, a rotating structure is also provided at the far end of the bracket 5 in this embodiment, and the rotating structure is connected between the hinge seat 9 and the bracket 5, and is used to support the boom 6 for rotating action; wherein, the rotating structure includes a rotating sleeve 17 and a turntable 18, the rotating sleeve 17 includes a sunken circular groove 19, and a plug-in hole 20 is provided in the center of the sunken circular groove 19, the rotating sleeve 17 is fixed to the far end of the bracket 5, and the turntable 18 has an axial hole 21, and the turntable 18 is embedded in the sunken circular groove 19; it also includes a connecting piece, and the connecting piece includes a bolt 22 and a slotted nut 23, and the bolt 22 sequentially passes through the hinge seat 9, the axial hole 21 and the plug-in hole 20 and is locked at its end by the slotted nut 23.

[0017] The working process and principle of this embodiment are as follows: According to the relative position of the attachment rod 2 and the opening direction of the lifting sleeve 3, the holding rod structure can be installed on the left or right side of the lifting sleeve 3. In this embodiment, it is installed on the left side. Figure 1 As shown, the bracket 5 is installed on the first crossbar at the bottom of the lifting sleeve 3 and fastened with a U-shaped clamp 8; two manual hoists 4 are symmetrically installed on the two vertical poles on the upper part of the lifting sleeve 3, and the guide chain 16 pulled by the manual hoist 4 is connected to the guide chain ear 13 at the outer end of the boom 6. When it is necessary to vertically lift the attachment rod 2, the two manual hoists 4 are pulled synchronously and in the same direction to control the two guide chains 16 to extend or retract, so as to adjust the inclination angle of the boom 6. After the adjustment is completed, the winch 7 is started, and the mine hook 15 led out from the end of the winch 7 is hooked on the attachment rod 2. When it is necessary to adjust the horizontal position of the hoisted attachment rod 2, the two manual hoists 4 are pulled synchronously and in the opposite direction, one of the guide chains 16 is extended, and the other guide chain 16 is retracted, and the boom 6 rotates around the rotating structure to achieve horizontal position adjustment.

[0018] The matters not described in detail in the present invention are all known technologies to those skilled in the art.

[0019] The preferred specific embodiments of the utility model are described in detail above. It should be understood that ordinary technicians in this field can make many modifications and changes based on the concept of the utility model without creative work. Therefore, all technical solutions that can be obtained by technicians in this technical field based on the concept of the utility model through logical analysis, reasoning or limited experiments on the basis of the existing technology should be within the scope of protection determined by the claims.

Claims

1. A rod holding mechanism for installing and removing a tower crane attachment rod (2), characterized in that: The invention comprises a tower body (1), an attachment rod (2), a lifting sleeve (3), a holding rod structure and two sets of manual hoists (4); the tower body (1) is built close to a building, the attachment rod (2) is connected between the tower body (1) and the building, and the lifting sleeve (3) is installed on the top of the tower body (1); the holding rod structure comprises a bracket (5), a boom (6) and a winch (7); the proximal end of the bracket (5) is fixed to the cross bar of the lifting sleeve (3) through a U-shaped card (8), and the distal end is provided with an articulated seat (9); the inner end of the boom (6) is provided with an articulated ear plate (10), and the outer end is provided with a pulley frame (11), and the pulley frame (11) is provided. 1) Install a lifting pulley (12), and weld a set of guide chain (16) ears (13) on both sides of the pulley frame (11); the hinged ear plate (10) and the hinged seat (9) are pin-connected, the winch (7) is installed on the boom (6), the end of the steel wire rope (14) of the winch (7) is led out and then hangs down around the lifting pulley (12), and the end of the steel wire rope (14) is connected to the mine hook (15); two sets of manual hoists (4) are symmetrically installed on the two vertical poles of the lifting frame (3), and the guide chains (16) of the two sets of manual hoists (4) are respectively connected to the two sets of guide chain (16) ears (13).

2. The rod holding mechanism for installing and removing the tower crane attachment rod (2) according to claim 1 is characterized in that: A slewing structure is provided at the far end of the bracket (5), and the slewing structure is connected between the hinge seat (9) and the bracket (5) and is used to support the boom (6) to perform a slewing motion.

3. The rod holding mechanism for installing and removing the tower crane attachment rod (2) according to claim 2 is characterized in that: The rotary structure comprises a rotary sleeve (17) and a rotary disk (18), wherein the rotary sleeve (17) comprises a sunken circular groove (19), a plug-in hole (20) is provided at the center of the sunken circular groove (19), the rotary sleeve (17) is fixed to the far end of the bracket (5), the rotary disk (18) comprises an axial hole (21), and the rotary disk (18) is engaged with the sunken circular groove (19); and further comprises a connecting member, wherein the connecting member comprises a bolt (22) and a slotted nut (23), wherein the bolt (22) sequentially passes through the hinge seat (9), the axial hole (21) and the plug-in hole (20) and is locked at its end by the slotted nut (23).

Images