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Strong buckle structure

A joint structure and tensioning technology, which is applied in the direction of foundation structure engineering, construction, sheet pile walls, etc., can solve problems such as slippage and large gaps, and achieve the effect of reducing movement gaps, reducing connection gaps, and tight and reliable connections

Active Publication Date: 2017-12-15
周兆弟
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this scheme also has a fly in the ointment: the outer part of the splice is smooth, and it will slip when it is snap-fitted with the snap ring, thereby forming a free stroke and causing a large gap between the two piles

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Such as Figure 4 with Figure 5 As shown, a strong pull fastening structure includes an intermediate nut 1 and a plug connector 2 inserted into the intermediate nut 1. The end of the intermediate nut 1 has a collar 4 composed of several cards 3. When the plug connector 2 When inserted into the middle nut 1, the collar 4 can clamp the plug joint 2 so that the plug joint 2 and the middle nut 1 snap fit, and the inside of the card 3 has at least one locking tooth 5,

[0026] recombine image 3 As shown, the plug joint 2 has at least one tensioning step 6 , and the tensioning step 6 can snap fit with the locking teeth 5 to form a stepped buckling structure 10 .

[0027] Specifically, the end of the plug connector 2 has a concave portion 7 matching the shape of the collar 4 , and the tension step 6 is located on the outer wall of the concave portion 7 . The stretching step 6 is in the shape of a ring, and the teeth 5 on the plurality of cards 3 are enclosed to form a rin...

Embodiment 2

[0036] The structure and working principle of this embodiment are basically the same as that of Embodiment 1, the difference is that, as figure 1 with figure 2 As shown, the end of the middle nut 1 has a collar positioning cavity 8 that can place the collar 4, and the end of the collar positioning cavity 8 has a function that can block the clamp when the collar 4 slides to the end of the collar positioning cavity 8. The collar 4 prevents the collar 4 from slipping out of the collar limiting cavity 9 of the collar positioning cavity 8 .

[0037] The inclinations of the outer wall of the collar positioning cavity 8 and the outer wall of the collar limiting cavity 9 are different. The angle a between the outer wall of the collar positioning cavity 8 and the outer wall of the collar limiting cavity 9 is an obtuse angle. Preferably, the obtuse angle a is between 130° and 150°.

[0038] Image 6 It is a schematic diagram of the structure of the intermediate nut in the prior art...

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Abstract

The invention belongs to the technical field of building components, and relates to a strong pull buckle joint structure. The technical problem of unreliable connection in the prior art is solved. It includes a middle nut and a plug connector inserted into the middle nut. The end of the middle nut has a collar composed of several cards. When the plug connector is inserted into the middle nut, the collar can hold the plug The connector is so that the plug joint and the intermediate nut are clamped and fitted. It is characterized in that the inside of the card has at least one locking tooth, and the plug joint has at least one tensioning step, and the tensioning step can be connected to the locking tooth. snap fit to form a stepped fastening structure. The tensioning step of the present invention can cooperate with the locking teeth to form a step-shaped fastening structure, thereby reducing the movement gap of the plug joint, reducing the connection gap between the pile bodies, and making the connection more compact and reliable.

Description

technical field [0001] The invention belongs to the technical field of building components, and relates to a strong pull buckle joint structure. Background technique [0002] The two ends of the existing prefabricated prefabricated piles are provided with steel plates, and the square piles are connected by mutual welding between the steel plates. After the connected pile body is pressed into the ground when the pile is pressed, because the soil contains salt, especially chlorine salt, it will corrode the steel plate exposed to the soil, resulting in the fracture of the connection between the pile and the pile, thus making the connection Pile disconnected. In addition, the way of connecting by welding of steel plates is relatively complicated, and the connection is inconvenient. Therefore, people provide a method for connecting with a connector, and the use of the connector greatly improves the connection speed and strength between prefabricated parts, and can also prevent ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D5/30E02D5/52
Inventor 周兆弟
Owner 周兆弟
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