CN214527814U

CN214527814U - Tower crane conversion joint

Info

Publication number: CN214527814U
Application number: CN202120800766.3U
Authority: CN
Inventors: 王高荣; 张虎陈; 刘星
Original assignee: Shaanxi Pangyuan Mechanical Engineering Technology Co ltd
Current assignee: Shaanxi Pangyuan Mechanical Engineering Technology Co ltd
Priority date: 2021-04-19
Filing date: 2021-04-19
Publication date: 2021-10-29
Anticipated expiration: 2031-04-19

Abstract

The utility model discloses a tower crane conversion festival relates to tower crane technical field, including conversion festival main part and dead lever, one side meshing of second rack is connected with the gear, the equal fixedly connected with extension spring in both ends of first rack, the lower extreme fixedly connected with sliding block of sliding shaft, the interior diapire fixedly connected with fixed block of second connecting block, the fixed surface of second connecting block is connected with the stopper, the fixed surface of connecting axle is connected with the dog. The utility model discloses a set up sliding shaft, sliding block, gear, second rack, first rack and extension spring, finally realize adjusting the position of first connecting block or second connecting block, can adjust according to the size of standard festival, improve the adaptability of conversion festival, through setting up connecting axle, stopper, compression spring, logical groove and dog, can save the separation of standard festival and conversion festival main part moreover to save the standard and save the connection process of conversion festival main part and simplify, make things convenient for the operating personnel to operate.

Description

Tower crane conversion joint

Technical Field

The utility model relates to a tower crane technical field specifically is a tower crane conversion festival.

Background

Along with the rapid development of the field of construction engineering, the vertical transportation requirements of a construction site are increasingly improved, so that the project application of a large tower crane is increased day by day, but the service time of the large tower crane is shorter than that of the whole construction process, and the large tower crane is difficult to be used economically and efficiently in the whole construction process. The tower crane is the most common hoisting equipment on the construction site, also called tower crane, and is used for hoisting construction raw materials such as reinforcing steel bars, wood ridges, concrete, steel pipes and the like for construction by the extension (height) of one section and one section (called standard section for short). The tower crane is an indispensable device on a construction site. The tower crane conversion joint can connect two standard joints with different sizes together, and has been widely adopted in the field of tower cranes

At present, current tower crane conversion festival is generally for the customization, can only adapt to two kinds of sizes standard festival, can't adjust according to not unidimensional standard festival, and consequently adaptability is relatively poor, and the conversion festival is generally connected through bolt and standard festival in addition, and is especially comparatively inconvenient when high altitude operation, and the practicality is not good, and current tower crane conversion festival exists can't adjust and comparatively troublesome problem when being connected with the standard festival according to not unidimensional standard festival.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides a tower crane conversion festival has solved the problem of proposing among the above-mentioned background art.

(II) technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: including conversion festival main part and dead lever, the inside fixedly connected with second rack of dead lever, one side meshing of second rack is connected with the gear, one side meshing of the second rack that the gear was kept away from is connected with first rack, the equal fixedly connected with extension spring in both ends of first rack, the internal surface of gear rotates and is connected with the sliding shaft, the lower extreme fixedly connected with sliding block of sliding shaft, the upper end fixedly connected with second connecting block of sliding shaft, the interior diapire fixedly connected with fixed block of second connecting block, the inside sliding connection of fixed block has the connecting axle, the external fixed surface of second connecting block is connected with the stopper, compression spring has been cup jointed to the outside of connecting axle, the external fixed surface of connecting axle is connected with the dog.

Optionally, the inside of the fixing rod is slidably connected with the first rack, a handle is fixedly connected to the outer surface of the first rack, and one end of the extension spring, which is far away from the first rack, is fixedly connected with the inner surface of the fixing rod.

Optionally, a guide groove is formed in the fixed rod, the guide groove is slidably connected with the sliding shaft, a sliding groove is formed in the fixed rod, the sliding groove is slidably connected with the sliding block, and the lower surface of the second connecting block abuts against the upper surface of the fixed rod.

Optionally, a second connecting through hole is formed in the outer surface of the second connecting block, one end of the connecting shaft is inserted into the second connecting through hole, the cross section of the second connecting block is L-shaped, and an installation gap is reserved between the fixing block and the second connecting block.

Optionally, one end fixedly connected with of connecting axle draws the piece, the inside and the stopper sliding connection of fixed block, compression spring's one end butt in the surface of stopper, compression spring's the other end butt in the internal surface of fixed block.

Optionally, a through groove is formed in the outer surface of the fixing block, the inside of the through groove is connected with the stop block in a sliding mode, the outside of the conversion joint main body is fixedly connected with the fixing rod, the lower surface of the fixing rod is connected with a first connecting block in an abutting mode, and the outer surface of the first connecting block is fixedly connected with a first connecting through hole.

Advantageous effects

The utility model provides a tower crane conversion festival possesses following beneficial effect:

1. this tower crane conversion festival, through setting up the sliding shaft, the sliding block, the gear, the second rack, first rack and extension spring, the pulling handle makes first rack break away from the surface of gear, can control sliding shaft and sliding block and can slide in the inside of dead lever, and drive the gear and roll at a side of second rack, the extension spring can stimulate first rack and compress tightly the gear once more after loosening the handle, make the sliding shaft fixed, finally realize the position of the first connecting block of adjustment or second connecting block, can adjust according to the size of standard festival, improve the adaptability of conversion festival.

2. This tower crane conversion festival, through setting up the connecting axle, the stopper, compression spring, lead to groove and dog, peg graft into the installation clearance with the fixed department of standard festival, the connecting hole the same with second connect the via hole has also been seted up to the installation department of standard festival, compression spring can promote stopper and connecting axle and peg graft into in second connect the via hole and the connecting hole, thereby be connected standard festival and conversion festival main part, the pulling connecting axle makes the dog follow logical inslot roll-off, and rotate the connecting axle and support the dog at the surface of second connecting block, then can save the standard festival and the separation of conversion festival main part, thereby simplify the connection process of standard festival and conversion festival main part, make things convenient for operating personnel to operate.

Drawings

FIG. 1 is a schematic view of the front perspective structure of the present invention;

FIG. 2 is a side view, sectional, partial schematic structural view of the present invention;

FIG. 3 is a schematic top sectional view of the present invention;

fig. 4 is a schematic top sectional view of the partial structure of the present invention.

In the figure: 1. a transition joint main body; 2. a handle; 3. a first connecting through hole; 4. a first connection block; 5. a first rack; 6. fixing the rod; 7. a connecting shaft; 8. a second connecting block; 9. a mounting gap; 10. pulling the block; 11. a guide groove; 12. a gear; 13. a fixed block; 14. a sliding shaft; 15. a second rack; 16. a slider; 17. an extension spring; 18. a compression spring; 19. a through groove; 20. a stopper; 21. and a limiting block.

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.

Referring to fig. 1 to 4, the present invention provides a technical solution: a tower crane conversion joint comprises a conversion joint body 1 and a fixed rod 6, a second rack 15 is fixedly connected inside the fixed rod 6, a gear 12 is meshed and connected with one side of the second rack 15 far away from the gear 12, a first rack 5 is meshed and connected with one side of the second rack 15 far away from the gear 12, two ends of the first rack 5 are fixedly connected with extension springs 17, the inside of the fixed rod 6 is in sliding connection with the first rack 5, a handle 2 is fixedly connected with the outer surface of the first rack 5, one end of each extension spring 17 far away from the first rack 5 is fixedly connected with the inner surface of the fixed rod 6, the inner surface of the gear 12 is rotatably connected with a sliding shaft 14, a guide groove 11 is formed inside the fixed rod 6, the inside of the guide groove 11 is in sliding connection with the sliding shaft 14, a sliding groove is formed inside the fixed rod 6, the inside of the sliding groove is in sliding connection with a sliding block 16, and the lower surface of a second connecting block 8 is abutted against the upper surface of the fixed rod 6, the lower end of the sliding shaft 14 is fixedly connected with a sliding block 16, the upper end of the sliding shaft 14 is fixedly connected with a second connecting block 8, the inner bottom wall of the second connecting block 8 is fixedly connected with a fixed block 13, the inside of the fixed block 13 is connected with a connecting shaft 7 in a sliding manner, the outer surface of the second connecting block 8 is provided with a second connecting through hole, one end of the connecting shaft 7 is inserted into the second connecting through hole, the cross section of the second connecting block 8 is L-shaped, a mounting gap 9 is reserved between the fixed block 13 and the second connecting block 8, the outer surface of the second connecting block 8 is fixedly connected with a limiting block 21, the outside of the connecting shaft 7 is sleeved with a compression spring 18, the outer surface of the connecting shaft 7 is fixedly connected with a stop block 20, one end of the connecting shaft 7 is fixedly connected with a pulling block 10, the inside of the fixed block 13 is connected with the limiting block 21 in a sliding manner, one end of the compression spring 18 is abutted to the outer surface of the limiting block 21, the other end butt of compression spring 18 in the internal surface of fixed block 13, and logical groove 19 has been seted up to the surface of fixed block 13, leads to the inside and the dog 20 sliding connection of groove 19, the outside and the dead lever 6 fixed connection of changeover portion main part 1, and the lower surface butt of dead lever 6 has first connecting block 4, and the first connecting hole 3 of the outer fixed surface of first connecting block 4 is connected with.

When the fixing device is used, the handle 2 is pulled outwards to enable the first rack 5 to slide outwards in the fixing rod 6 and separate from the outer surface of the gear 12, then the first connecting block 4 or the second connecting block 8 is pulled to control the sliding shaft 14 and the sliding block 16 to slide in the fixing rod 6 and drive the gear 12 to roll on one side surface of the second rack 15, the first rack 5 can be pulled to press the gear 12 again by the aid of the stretching spring 17 after the handle 2 is released, so that the gear 12 and the sliding shaft 14 are fixed, the position of the first connecting block 4 or the second connecting block 8 is finally adjusted, adjustment can be performed according to the size of a standard joint, and the adaptability of a conversion joint is improved; in inserting into installation clearance 9 with the fixed department of standard festival, the connecting hole the same with second connect the via hole has also been seted up to the installation department of standard festival, compression spring 18 can promote stopper 21 and connecting axle 7 and insert into second connect the via hole and connect in, thereby be connected standard festival and conversion festival main part 1, pulling connecting axle 7 makes dog 20 follow logical inslot roll-off, and rotate connecting axle 7 and support dog 20 at the surface of second connecting block 8, then can be with the separation of standard festival and conversion festival main part 1, thereby simplify the connection process of standard festival and conversion festival main part 1, make things convenient for operating personnel to operate.

To sum up, the utility model can control the sliding shaft 14 and the sliding block 16 to slide in the fixed rod 6 and drive the gear 12 to roll on one side of the second rack 15 by arranging the sliding shaft 14, the sliding block 16, the gear 12, the second rack 15, the first rack 5 and the extension spring 17, and the handle 2 is pulled to separate the first rack 5 from the outer surface of the gear 12, the extension spring 17 can pull the first rack 5 to press the gear 12 again after the handle 2 is released, so that the sliding shaft 14 is fixed, finally, the position of the first connecting block 4 or the second connecting block 8 is adjusted, the adjustment can be carried out according to the size of the standard knot, the adaptability of the conversion knot is improved, the connecting shaft 7, the limiting block 21, the compression spring 18, the through groove 19 and the stop block 20 are arranged, the fixed part of the standard knot is inserted into the mounting gap 9, the mounting part of the standard knot is also provided with the connecting hole which is the same as the second connecting hole, compression spring 18 can promote stopper 21 and connecting axle 7 and insert in second connect the via hole and the connecting hole to be connected standard festival and conversion festival main part 1, pulling connecting axle 7 makes dog 20 follow logical inslot roll-off, and rotate connecting axle 7 and support dog 20 at the surface of second connecting block 8, then can be with the separation of standard festival and conversion festival main part 1, thereby simplify the connection process of standard festival and conversion festival main part 1, make things convenient for operating personnel to operate.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a tower crane conversion festival, includes conversion festival main part (1) and dead lever (6), its characterized in that: the inner part of the fixing rod (6) is fixedly connected with a second rack (15), one side of the second rack (15) is meshed with a gear (12), one side of the second rack (15) far away from the gear (12) is meshed with a first rack (5), two ends of the first rack (5) are fixedly connected with extension springs (17), the inner surface of the gear (12) is rotatably connected with a sliding shaft (14), the lower end of the sliding shaft (14) is fixedly connected with a sliding block (16), the upper end of the sliding shaft (14) is fixedly connected with a second connecting block (8), the inner bottom wall of the second connecting block (8) is fixedly connected with a fixing block (13), the inner part of the fixing block (13) is slidably connected with a connecting shaft (7), the outer surface of the second connecting block (8) is fixedly connected with a limiting block (21), and the outer part of the connecting shaft (7) is sleeved with a compression spring (18), the outer surface of the connecting shaft (7) is fixedly connected with a stop block (20).

2. The tower crane conversion joint according to claim 1, wherein: the inside and the first rack (5) sliding connection of dead lever (6), the surface fixed connection of first rack (5) has handle (2), the one end that first rack (5) were kept away from in extension spring (17) is connected with the internal surface fixed of dead lever (6).

3. The tower crane conversion joint according to claim 1, wherein: guide slot (11) have been seted up to the inside of dead lever (6), the inside and sliding shaft (14) sliding connection of guide slot (11), the sliding tray has been seted up to the inside of dead lever (6), the inside and sliding block (16) sliding connection of sliding tray, the lower surface butt of second connecting block (8) is in the upper surface of dead lever (6).

4. The tower crane conversion joint according to claim 1, wherein: a second connecting through hole is formed in the outer surface of the second connecting block (8), one end of the connecting shaft (7) is inserted into the second connecting through hole, the cross section of the second connecting block (8) is L-shaped, and a mounting gap (9) is reserved between the fixing block (13) and the second connecting block (8).

5. The tower crane conversion joint according to claim 1, wherein: one end fixedly connected with of connecting axle (7) draws piece (10), the inside and stopper (21) sliding connection of fixed block (13), the one end butt of compression spring (18) is in the surface of stopper (21), the other end butt of compression spring (18) is in the internal surface of fixed block (13).

6. The tower crane conversion joint according to claim 1, wherein: lead to groove (19) has been seted up to the surface of fixed block (13), the inside and dog (20) sliding connection that lead to groove (19), the outside and dead lever (6) fixed connection of conversion festival main part (1), the lower surface butt joint of dead lever (6) has first connecting block (4), the first connect the via hole (3) of outer fixed surface of first connecting block (4).