CN217172961U

CN217172961U - Tower crane lifting hook maintenance structure

Info

Publication number: CN217172961U
Application number: CN202123377567.5U
Authority: CN
Inventors: 仇华亮; 刘峥; 王慧
Original assignee: Huazhong Mechanical Equipment Foshan Co ltd
Current assignee: Huazhong Mechanical Equipment Foshan Co ltd
Priority date: 2021-12-29
Filing date: 2021-12-29
Publication date: 2022-08-12
Anticipated expiration: 2031-12-29

Abstract

The utility model discloses a tower crane lifting hook maintains structure. The utility model discloses a: the lifting hook comprises a lifting hook body, a connecting frame, a connecting column and two sleeves, wherein a square plate is fixedly arranged at the top of the lifting hook body and movably abutted against the inner walls of the front side and the rear side of the connecting frame, and the front side of the square plate is provided with a round hole, the connecting column is movably inserted in the round hole, the two sleeves are respectively movably abutted with the front side and the rear side of the connecting frame, and the two sleeves are movably sleeved outside the connecting column, the inner walls of the two sides of the sleeves are respectively provided with a square groove, a frame body is arranged in the square grooves in a sliding way, one side of the frame body is provided with an opening, the utility model realizes the installation of the tower crane hook by the clamping of the clamping plate and the clamping groove and the clamping of the sliding plate and the positioning groove, ensures the installation stability and is convenient to disassemble, thereby be convenient for maintain the work, it is comparatively loaded down with trivial details to have solved conventional tower crane lifting hook dismantlement installation operation for be not convenient for maintain the problem of operation.

Description

Tower crane lifting hook maintenance structure

Technical Field

The utility model relates to a tower crane maintenance technical field specifically is a tower crane lifting hook maintains structure.

Background

The tower crane is the most common hoisting equipment in construction sites, and is used for hoisting construction raw materials such as reinforcing steel bars, wood ridges, concrete, steel pipes and the like for construction. The upper end of the tower crane has the function of bearing the upper load transmitted by the boom guy rope and the balance arm guy rope, and the upper load is directly transmitted to the tower body structure through the rotary tower, the rotary table, the bearing seat and other structural components. The self-elevating tower top is provided with a truncated cone column type, a forward-inclined or backward-inclined truncated cone column type, a herringbone frame type and an inclined support frame type. The upper slewing tower crane is required to be provided with a balance weight, and the function of the upper slewing tower crane is to support the balance weight so as to form a balance moment which is required by design and has the action direction opposite to the lifting moment direction. In addition to the counterweight, a hoisting mechanism is often provided at the tail.

The conventional tower crane lifting hook is relatively complex in disassembly and assembly operation, so that the maintenance operation is inconvenient.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a tower crane lifting hook maintains structure to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a tower crane lifting hook maintenance structure, includes: the lifting hook comprises a lifting hook body, a connecting frame, a connecting column and two sleeves, wherein a square plate is fixedly mounted at the top of the lifting hook body, the square plate is movably abutted against the inner walls of the front side and the rear side of the connecting frame, a round hole is formed in the front side of the square plate, the connecting column is movably inserted in the round hole, the two sleeves are respectively movably abutted against the front side and the rear side of the connecting frame, the two sleeves are movably sleeved outside the connecting column, square grooves are formed in the inner walls of the two sides of the sleeves, a frame body is slidably mounted in the square grooves, an opening is formed in one side of the frame body, clamping plates are fixedly mounted on the other side of the frame body, two clamping grooves are formed in the two sides of the connecting column, the four clamping plates are respectively and movably clamped in the corresponding clamping grooves, slide holes are formed in the inner walls of the front side and the rear side of the frame body, slide plates are slidably mounted in the slide holes, positioning grooves are formed in the inner walls of the front side and the rear side of the square grooves, and the slide plates are movably clamped in the corresponding positioning grooves, and one side of the sliding plate is provided with an inclined hole, a bent rod is arranged in the inclined hole in a sliding manner, and one end, close to each other, of each of the two bent rods in the same frame is fixedly provided with the same pull rod.

Furthermore, one side of the bent rod is fixedly connected with a pressure spring, and one end of the pressure spring is fixedly connected to the inner wall of one side of the corresponding square groove.

Furthermore, one side of the frame body is fixedly connected with two return springs, and one ends of the return springs are fixedly connected to the side walls of the corresponding square grooves.

Furthermore, a transverse hole is formed in the inner wall of one side of the square groove, and the four pull rods are respectively connected into the corresponding transverse holes in a sliding mode.

Furthermore, a fixed column is fixedly installed in the connecting frame, and a pulley is sleeved on the outer side of the fixed column in a rotating mode.

Furthermore, the front side and the rear side of the connecting frame are both provided with inserting holes, and the connecting column is movably inserted in the two inserting holes.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses a joint and slide through cardboard and draw-in groove and the joint of constant head tank realize the installation to the tower crane lifting hook, are convenient for dismantle it when having guaranteed installation stability to be convenient for maintain work, solved conventional tower crane lifting hook and dismantled installation operation comparatively loaded down with trivial details, make the problem of being not convenient for maintain the operation.

Drawings

Fig. 1 is a schematic structural diagram in an embodiment of the present invention;

fig. 2 is a schematic cross-sectional view of an embodiment of the present invention;

FIG. 3 is a cross-sectional view of section A-A of FIG. 2;

FIG. 4 is an enlarged view of a portion of FIG. 3 at position B;

fig. 5 is a partial enlarged view of the position C in fig. 4.

Reference numerals: 1. a hook body; 2. a connecting frame; 3. connecting columns; 4. a square plate; 5. a sleeve; 6. a pull rod; 7. a frame body; 8. clamping a plate; 9. a card slot; 10. a square groove; 11. bending a rod; 12. a slide plate; 13. positioning a groove; 14. a return spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Please refer to fig. 1-4, in which fig. 1 is a schematic structural diagram of an embodiment of the present invention;

fig. 2 is a schematic cross-sectional view of an embodiment of the present invention; FIG. 3 is a cross-sectional view of section A-A of FIG. 2; FIG. 4 is an enlarged view of a portion of FIG. 3 at position B; FIG. 5 is a partial enlarged view of the position C in FIG. 4, a tower crane hook maintenance structure, comprising: the lifting hook comprises a lifting hook body 1, a connecting frame 2, a connecting column 3 and two sleeves 5, wherein a square plate 4 is fixedly installed at the top of the lifting hook body 1, the square plate 4 is movably abutted against the inner walls of the front side and the rear side of the connecting frame 2, a round hole is formed in the front side of the square plate 4, the connecting column 3 is movably inserted into the round hole, the two sleeves 5 are respectively movably abutted against the front side and the rear side of the connecting frame 2, the two sleeves 5 are movably sleeved on the outer side of the connecting column 3, square grooves 10 are respectively formed in the inner walls of the two sides of the sleeves 5, a frame body 7 is slidably installed in the square grooves 10, one side of the frame body 7 is provided with an opening, clamping plates 8 are fixedly installed on the other side of the frame body 7, two clamping grooves 9 are respectively formed in the two sides of the connecting column 3, the four clamping plates 8 are respectively movably clamped inside the corresponding clamping grooves 9, sliding holes are respectively formed in the inner walls of the front side and the rear side of the frame body 7, a sliding plate 12 is slidably installed in the sliding hole, constant head tank 13 has all been seted up on both sides inner wall around the square groove 10, slide 12 activity joint in the constant head tank 13 that corresponds, and slide 12 one side has seted up the inclined hole, and slidable mounting has curved bar 11 in the inclined hole, and the one end fixed mounting that two curved bars 11 that lie in same framework 7 are close to each other has same pull rod 6.

One side of the bent rod 11 is fixedly connected with a pressure spring, and one end of the pressure spring is fixedly connected to the inner wall of one side of the corresponding square groove 10 to reset the bent rod 11.

Two return springs 14 are fixedly connected to one side of the frame 7, and one end of each return spring 14 is fixedly connected to the corresponding side wall of the square groove 10 to return the frame 7.

And a transverse hole is formed in the inner wall of one side of the square groove 10, and the four pull rods 6 are respectively connected in the corresponding transverse holes in a sliding manner to guide the pull rods 6.

The fixed column is fixedly installed in the connecting frame 2, and the pulley is sleeved on the outer side of the fixed column in a rotating mode, so that the steel wire rope can be conveniently installed.

The front side and the rear side of the connecting frame 2 are respectively provided with an inserting hole, and the connecting column 3 is movably inserted into the two inserting holes, so that the connecting column 3 is convenient to mount.

To sum up, the utility model provides a pair of tower crane lifting hook maintains structure, at the during operation, drive two knee rods 11 through pulling pull rod 6 and carry out lateral shifting knee rod 11 and drive slide 12 roll-off constant head tank 13 through the sliding fit with the inclined hole, continue pulling pull rod 6 and can drive framework 7 and carry out lateral shifting, framework 7 drives cardboard 8 and carries out lateral shifting, make cardboard 8 break away from being connected with draw-in groove 9, thereby remove the fixed to spliced pole 3, then take spliced pole 3 out from round hole and spliced hole from the front side, thereby remove the fixed to lifting hook body 1, so that dismantle it and maintain work.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a tower crane lifting hook maintains structure which characterized in that includes: the lifting hook comprises a lifting hook body (1), a connecting frame (2), a connecting column (3) and two sleeves (5), wherein a square plate (4) is fixedly installed at the top of the lifting hook body (1), the square plate (4) is movably abutted against the inner walls of the front side and the rear side of the connecting frame (2), a round hole is formed in the front side of the square plate (4), the connecting column (3) is movably inserted into the round hole, the two sleeves (5) are respectively movably abutted against the front side and the rear side of the connecting frame (2), the two sleeves (5) are movably sleeved on the outer side of the connecting column (3), square grooves (10) are respectively formed in the inner walls of the two sides of each sleeve (5), a frame body (7) is slidably installed in each square groove (10), one side of each frame body (7) is provided with an opening, clamping plates (8) are fixedly installed on the other side of the frame body (7), two clamping grooves (9) are respectively formed in the two sides of the connecting column (3), and the four clamping plates (8) are movably clamped inside the corresponding clamping grooves (9) respectively, and all seted up the slide opening on the both sides inner wall around framework (7), slidable mounting has slide (12) in the slide opening, constant head tank (13) have all been seted up on the both sides inner wall around square groove (10), slide (12) activity joint is in constant head tank (13) that correspond, and one side of slide (12) has seted up the inclined hole, and slidable mounting has curved bar (11) in the inclined hole, and the one end fixed mounting that two curved bars (11) that are located same framework (7) are close to each other has same pull rod (6).

2. The tower crane hook maintenance structure according to claim 1, wherein a pressure spring is fixedly connected to one side of the bent rod (11), and one end of the pressure spring is fixedly connected to the inner wall of one side of the corresponding square groove (10).

3. The tower crane lifting hook maintenance structure according to claim 1, wherein two return springs (14) are fixedly connected to one side of the frame body (7), and one ends of the return springs (14) are fixedly connected to the side walls of the corresponding square grooves (10).

4. The tower crane hook maintenance structure according to claim 1, wherein a transverse hole is formed in an inner wall of one side of the square groove (10), and the four pull rods (6) are respectively connected in the corresponding transverse holes in a sliding manner.

5. The tower crane hook maintenance structure according to claim 1, wherein a fixed column is fixedly installed in the connecting frame (2), and a pulley is rotatably sleeved on the outer side of the fixed column.

6. The tower crane hook maintenance structure according to claim 1, wherein the front and rear sides of the connecting frame (2) are provided with insertion holes, and the connecting column (3) is movably inserted into the two insertion holes.