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Combined bolt

A combined bolt and screw technology, applied in the direction of screws, threaded fasteners, thin plate connections, etc., can solve problems such as loose plates

Inactive Publication Date: 2015-03-18
常州市永达紧固件有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Existing ordinary bolts are only screw rods and integrated nuts. This structure cannot meet the use of specific occasions. For example, when multi-layer plates are superimposed and connected together, very long bolts need to be used. After being lowered, all the boards will be loose

Method used

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  • Combined bolt

Examples

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Embodiment Construction

[0012] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0013] see figure 1 , combined bolts, including a first screw 1 with external threads, a first nut 2 fixed at one end of the first screw, a second screw 3 with external threads, and a second nut fixed at one end of the second screw 4. A screw hole 5 is opened in the axial direction of the middle part of the first nut, and the above-mentioned second screw rod 4 can be inserted into the screw hole and screwed with it. In a specific implementation, the screw hole 5 extends to 1 / 3 of the first screw rod. The outer diameter of the second screw is 1 / 4-1 / 3 of the outer diameter of the first screw. A through hole 6 extending to the end face of the second screw is provided in the axial direction of the middle part of the second nut. Lubricating liquid can be added to the through hole for rust prevention. The through hole is a circular hole, which is 1...

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PUM

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Abstract

The invention relates to the technical field of connecting pieces, in particular to a combined bolt. The combined bolt comprises a first screw with an external thread, a first nut fixed to one end of the first screw, a second screw with an external thread and a second nut fixedly arranged at one end of the second screw. A threaded hole is formed in the middle of the first nut in the axis direction and the second screw can be inserted into the threaded hole to be in screw-thread fit with the same. In the use process, a sheet material can be fixed through the fitting of the first screw and the first nut, another sheet material can be fixed by inserting the second screw into the first screw and allowing the second screw to fit with the second nut, and a plurality bolts can be arranged in the same way so as to realize the fixation of the plurality of sheet materials; in follow-up disassembling, connection of other sheet materials cannot be affected when a previous sheet material is disassembled.

Description

technical field [0001] The invention relates to the technical field of connectors, in particular to a combined bolt. Background technique [0002] Existing ordinary bolts are only screw rods and integrated nuts. This structure cannot meet the use of specific occasions. For example, when multi-layer plates are superimposed and connected together, very long bolts need to be used. After being lowered, all the boards will be loose. Contents of the invention [0003] In view of the above technical problems, the present invention provides a combined bolt with simple structure and convenient use. [0004] Realize the technical scheme of the present invention as follows: [0005] The combined bolt includes a first screw with external threads, a first nut fixed at one end of the first screw, a second screw with external threads, and a second nut fixed at one end of the second screw. A threaded hole is opened in the axial direction of the middle part of the nut, and the above-men...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16B35/00F16B35/02
CPCF16B35/02F16B5/0275
Inventor 徐云飞
Owner 常州市永达紧固件有限公司
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