CN212832493U - Movable arm adjustable support rod - Google Patents
Movable arm adjustable support rod Download PDFInfo
- Publication number
- CN212832493U CN212832493U CN202021794033.5U CN202021794033U CN212832493U CN 212832493 U CN212832493 U CN 212832493U CN 202021794033 U CN202021794033 U CN 202021794033U CN 212832493 U CN212832493 U CN 212832493U
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- adjustable
- nut
- joint
- chord member
- screw
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Abstract
The utility model discloses a vaulting pole with adjustable swing arm, including chord member, adjustable joint, fixed joint, the one end fixed connection of fixed joint and chord member, the other end swing joint of adjustable joint and chord member. And a nut is fixedly arranged at one end of the chord member connected with the adjustable joint, a screw rod is arranged on the adjustable joint, and the nut is matched with the screw rod to adjust the length of the stay bar. The nut is a galvanized nut, and the screw is a galvanized screw. Above-mentioned structure can make the vaulting pole install more easily, and makes the structure atress of top of the tower more stable through the length of adjusting the vaulting pole.
Description
Technical Field
The utility model relates to a tower crane technical field, concretely relates to vaulting pole with adjustable swing arm.
Background
The top of the tower of the swing arm tower crane can receive a large pulling force from a cargo boom, the tower top structure is easy to deform due to the large pulling force, so that the stability of the tower top structure can be ensured by adopting a mode of increasing a stay bar, as shown in fig. 2, the lower end of the tower top is hinged with a support, so that the main stress is on a front sheet structure a and a rear stay b of the tower top, in the existing fixed stay bar c, the machining error of the tower top structure can be caused by the self frequently, the machining error of the fixed stay bar 1 is caused, the factors such as stress deformation and the like need to be polished and welded when the fixed stay bar 1 is installed, the inconvenience of installation is greatly increased, the installation is difficult, the trouble and labor are wasted, the long-time stress deformation is caused, the fixed stay bar 1 is seriously deformed, the.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a vaulting pole with adjustable swing arm to solve the fixed vaulting pole installation difficulty's that exists among the prior art problem.
In order to achieve the purpose, the movable arm adjustable support rod comprises a chord member, an adjustable joint and a fixed joint, wherein the fixed joint is fixedly connected with one end of the chord member, and the adjustable joint is movably connected with the other end of the chord member; the adjustable connector is characterized in that a nut is fixedly arranged at one end of the chord member, connected with the adjustable connector, a screw rod is arranged on the adjustable connector, and the nut is matched with the nut to adjust the length of the stay bar.
Further, the nut is a galvanized nut, and the screw is a galvanized screw.
The utility model has the advantages that: through setting up adjustable joint, the nut cooperation on its screw rod and the chord member can finely tune the length of vaulting pole to make the vaulting pole install at the top of the tower more easily, and can prevent to lead to the unstability of top of the tower structure because of the vaulting pole change.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic diagram of a prior art configuration;
in the figure, 1-chord, 11-nut, 2-adjustable joint, 21-screw, 3-fixed joint, a-front sheet structure, b-top of tower rear support, c-fixed support rod.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
As shown in fig. 1, a movable arm adjustable brace rod comprises a chord member 1, an adjustable joint 2 and a fixed joint 3, wherein the fixed joint 3 is fixedly connected with one end of the chord member 1, and the adjustable joint 2 is movably connected with the other end of the chord member 1; the nut 11 is fixedly arranged at one end of the chord member 1 connected with the adjustable joint 2, the screw 21 is arranged on the adjustable joint 2, and the nut 11 is matched with the nut 11 to adjust the length of the stay bar. The nut 11 is welded at the end of the chord member 1, and a hollow section is reserved on the inner side of the end of the chord member 1 to provide a space for the screw 21 to be screwed in and out. The fixed joint 3 is provided with a connecting hole, and the adjustable joint 2 is also provided with a connecting hole. Above-mentioned structure passes through screw rod 21 and nut 11's cooperation for the vaulting pole length can finely tune, will become easy when the installation like this, and can be according to the vaulting pole atress condition, adjusts vaulting pole length, prevents to warp, keeps the stability of tower top structure, and it has overcome the inconvenient problem of installation that fixed vaulting pole c brought among the prior art, and the long-time atress of fixed vaulting pole c shape leads to the unstable problem of tower top structure atress. In addition, because the tower crane works outside for a long time, parts are easy to rust, so that the nut 11 and the screw 21 need to be protected in some ways, the nut 11 is a galvanized nut, and the screw 21 is a galvanized screw.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited thereto, and various changes that can be made without departing from the spirit of the present invention within the scope of knowledge possessed by those skilled in the art can be made within the scope of the claims of the present invention.
Claims (2)
1. The utility model provides a vaulting pole with adjustable swing arm which characterized in that: the adjustable connector comprises a chord member (1), an adjustable connector (2) and a fixed connector (3), wherein the fixed connector (3) is fixedly connected with one end of the chord member (1), and the adjustable connector (2) is movably connected with the other end of the chord member (1); the adjustable supporting rod is characterized in that a nut (11) is fixedly arranged at one end, connected with the adjustable joint (2), of the chord (1), a screw rod (21) is arranged on the adjustable joint (2), and the nut (11) is matched with the screw rod (21) to adjust the length of the supporting rod.
2. The boom-adjustable stay according to claim 1, wherein: the nut (11) is a galvanized nut, and the screw (21) is a galvanized screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021794033.5U CN212832493U (en) | 2020-08-25 | 2020-08-25 | Movable arm adjustable support rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021794033.5U CN212832493U (en) | 2020-08-25 | 2020-08-25 | Movable arm adjustable support rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212832493U true CN212832493U (en) | 2021-03-30 |
Family
ID=75141292
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021794033.5U Active CN212832493U (en) | 2020-08-25 | 2020-08-25 | Movable arm adjustable support rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212832493U (en) |
-
2020
- 2020-08-25 CN CN202021794033.5U patent/CN212832493U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |