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Direction-adjustable ratchet wheel type self-locking movable joint

A kind of flexible joint, self-locking technology, applied in excavation, construction, infrastructure engineering and other directions, can solve the problems of flexible joints can only withstand pressure, inconvenient installation and disassembly of flexible joints, easy corrosion of stressed parts, etc., to prevent excessive deformation. , the effect of strengthening the integrity, increasing the bearing capacity and stiffness

Active Publication Date: 2019-05-10
BEIJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of this, the object of the present invention is to provide an adjustable ratchet-type self-locking joint to solve the inconvenience of loading and unloading of the joint in the prior art, the steel wedge is easy to loose, the joint can only bear pressure, and is mainly affected by Technical Problems of Corrosion of Power Parts

Method used

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  • Direction-adjustable ratchet wheel type self-locking movable joint
  • Direction-adjustable ratchet wheel type self-locking movable joint
  • Direction-adjustable ratchet wheel type self-locking movable joint

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0069] In an optional solution of this embodiment, this embodiment provides an adjustable ratchet type self-locking joint, including a movable end, a fixed end and an adjustable ratchet mechanism.

[0070] In this embodiment, the articulating joint can only withstand pressure.

[0071] Such as figure 1 As shown, the movable end includes movable end flange 100, movable end rib 101, movable end steel pipe 102, movable end embedded steel pipe 103, rack 104, movable end flange 105, movable end flange stiffener 106, movable end Steel pipe sealing plate 107 and embedded steel pipe sealing plate 108; fixed end includes fixed end flange 200, fixed end steel pipe 201, fixed end rib 202, fixed end wing plate 203 and fixed end wing plate stiffener 204; adjustable ratchet The mechanism includes a ratchet 300 , a ratchet bar 301 , a ratchet 302 , a spring 303 , a connecting rod 304 , a steering handle 305 , a ratchet steel pipe 306 , a ball 307 and an axle 308 .

[0072] In this embodime...

Embodiment 2

[0081] In this embodiment, the flexible joint can withstand both tension and compression.

[0082] In the optional solution of this embodiment, it is partly different from Embodiment 1 in that, when the erection is nearing completion, after the jack 400 reaches the predetermined elongation length, do not immediately return the oil to remove the jack 400, but keep the jack 400 unloaded and leave it. At the original position, select a group of relative adjustable ratchet mechanisms, lift the steering handle 305, rotate the steering handle (305) 180°, and then relax the steering handle 305. Then, at this time, the straight surface of half of the spines 301 faces the movable end, which limits the extension of the movable end, and the straight surface of the other half of the spines 301 faces the fixed end, which limits the retraction of the movable joint. At this time, the jack 400 can be removed. , the entire erection is complete. Use process such as image 3 , 5 As shown, the...

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Abstract

The invention discloses a direction-adjustable ratchet wheel type self-locking movable joint which comprises a movable end, a fixed end and a direction-adjustable ratchet wheel mechanism. The movableend mainly comprises a movable end flange, a movable end rib plate, a movable end steel pipe, a movable end embedded steel pipe, movable end wing plates and a rack. The movable end rib plate is arranged between the movable end flange and the movable end steel pipe, and the movable end wing plates are symmetrically arranged on the two sides of the movable end steel pipe. One side of the fixed end steel pipe is provided with an opening, the movable end embedded steel pipe is embedded in the side, and the other side is coaxially connected with the fixed end flange. Fixed end wing plates are symmetrically arranged on the two sides of the opening end of the fixed end steel pipe and correspond to the movable end wing plates. The ratchet wheel is engaged with the rack, and movement of the rack can drive the ratchet wheel to rotate. A direction-adjusting handle is arranged outside the fixed end steel pipe, and a connecting rod penetrates through the fixed end steel pipe and a spring in the fixed end steel pipe to connect the ratchet and the direction-adjusting handle. The movable joint is simple and convenient in structure, free of redundant accessories, capable of being self-locked, convenient to erect and disassemble and capable of bearing pressure and tension at the same time.

Description

technical field [0001] The invention relates to the technical field of support structures in foundation pits, in particular to an adjustable ratchet type self-locking joint. Background technique [0002] In foundation pit engineering, steel pipe internal support system is widely used. Due to the construction needs of the steel pipe inner support system, the steel support must have a certain amount of expansion and contraction to facilitate installation and disassembly, and at the same time be able to apply pre-applied axial force to resist the deformation of the foundation pit, so the device that performs the expansion and contraction function and applies prestress is the active end. The currently used active end is complicated to operate, and a steel wedge needs to be wedged in during installation, which is likely to cause disturbance to the steel support during the beating process and make the support eccentric. And the steel wedge is easy to loosen during use, which is e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D17/04
Inventor 张明聚谢治天李鹏飞杨萌张奇朋樊鹏杰
Owner BEIJING UNIV OF TECH
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