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Steel ball self-locking mechanical connecting device and connecting method

A technology of mechanical connection and steel balls, applied in construction, sheet pile walls, foundation structure engineering, etc., can solve the problems of operation convenience, cumbersome troubles, etc., achieve stable and effective resistance to pulling force, and low probability of false contact , good guiding effect

Pending Publication Date: 2021-01-01
XUZHOU NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This application has designed a mechanical connector to connect the piles. Compared with welding and bonding methods, the convenience has been greatly improved. However, the device in this application has adopted many The method of limiting the position with a tapered sleeve is more cumbersome and troublesome when assembling the connecting parts, and the convenience of operation still needs to be improved

Method used

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  • Steel ball self-locking mechanical connecting device and connecting method
  • Steel ball self-locking mechanical connecting device and connecting method
  • Steel ball self-locking mechanical connecting device and connecting method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0062] The steel ball self-locking mechanical connection device of this embodiment includes:

[0063] The upper joint 1 is hollow columnar;

[0064] The lower joint 2 is hollow cylindrical, and its upper end surface abuts against the lower end surface of the upper joint 1;

[0065] Also includes:

[0066] Steel balls 11, several of which are placed in the upper joint 1;

[0067] Support ring 12, which is a ring, has a depression on its outer surface, the shape of the depression matches the spherical shape of the steel ball 11, and the spherical surface of the steel ball 11 is in contact with the depression and arranged circumferentially along the outer surface of the support ring 12;

[0068] The limiting member 13 is connected to the inner lower end of the upper joint 1, the middle part of the limiting member 13 runs through a through hole up and down, and the limiting member 13 restricts the tendency of the supporting ring 12 to fall downward;

[0069] The support 14, whi...

Embodiment 2

[0079] The steel ball self-locking mechanical connection device of this embodiment is further improved on the basis of Embodiment 1. The stopper 13 is a hollow ring, and its outer wall is provided with threads, and the lower end of the inner wall of the upper joint 1 is provided with corresponding threaded structure; the lower end of the plug 21 is threaded inside the lower joint 2 .

[0080] Such as image 3 and Figure 4 As shown, the stopper 13 is screwed to the inner lower end of the upper joint 1, and the plug 21 is screwed to the inner upper end of the lower joint 2. Through the structural design of this embodiment, the assembly of the device before use is convenient and quick.

Embodiment 3

[0082] The steel ball self-locking mechanical connection device of this embodiment is further improved on the basis of Embodiment 2, and the support member 14 includes:

[0083] Wedge ring 140, which is a ring, the lower end is wedge-shaped, the inner wall diameter of the lower end gradually decreases from bottom to top, and the inner wall diameter of the upper end is the same;

[0084] A spring 141, one end of which is connected to the upper end of the wedge ring 140, and the other end is connected to the inner upper end of the upper joint 1;

[0085] The spring 141 is in a compressed state;

[0086] When the upper joint 1 and the lower joint 2 are not in contact, the wedge-shaped inclined surface at the lower end of the wedge-shaped ring 140 is in contact with the spherical surface above the side of the steel ball 11; touch.

[0087] There are many structures of the support member 14 that can provide downward and centripetal force for the steel ball 11, such as using wedge...

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Abstract

The invention discloses a steel ball self-locking mechanical connecting device and method, and belongs to the technical field of buildings. The steel ball self-locking mechanical connecting device comprises an upper joint and a lower joint, and further comprises steel balls, a supporting ring, a limiting piece, a supporting piece, a plug and an arc-shaped groove, wherein the steel balls are arranged in the upper joint; the steel balls are arranged in the circumferential direction of the outer side face of the supporting ring; the limiting piece is used for limiting the downward falling trend of the supporting ring; the supporting piece is used for providing downward and centripetal force for the steel balls; one end of the plug is connected with the upper end in the lower joint, and the other end of the plug extends out of the upper end of the lower joint; the arc-shaped groove is of a groove structure formed in the side wall of the extending end of the plug in the circumferential direction; and after the upper joint and the lower joint abut against each other, the plug penetrates through the limiting piece and jacks up the supporting ring, and the steel balls enter the arc-shapedgroove under the acting force of the supporting piece. The device is easy to assemble, structures are matched with each other after assembly, automatic triggering and locking can be achieved after theupper joint and the lower joint abut against each other under the action of gravity, triggering is easy and convenient, rigid limitation is formed between the steel balls and the rigid plug arc-shaped groove after triggering, and stable and effective anti-drawing acting force is provided for a precast pile after connection.

Description

technical field [0001] The invention belongs to the technical field of construction, and more specifically relates to a steel ball self-locking mechanical connection device and a connection method. Background technique [0002] Most of the prefabricated piles used in building construction are connected by end-plate welding. This welding method has poor stability and hidden quality problems, and it takes a long time to weld. The welding quality is affected by the welding level of the operator. The impact is relatively large, and the quality is difficult to guarantee; there is also a method of bonding piles, which is connected by sulfur mastic, which is costly and time-consuming. [0003] Therefore, how to design a connection method and connection device with convenient installation, stable connection and strong pull-out resistance is an urgent problem to be solved. [0004] After retrieval, Chinese Patent Publication No.: CN101519876A; Publication Date: August 17, 2011; disc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D5/52
CPCE02D5/526
Inventor 刘玉杨存智马立强李顺才张强张庆俊
Owner XUZHOU NORMAL UNIVERSITY
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