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Heteromorphic bolt and fastening device adopting same

一种异形螺栓、紧固装置的技术，应用在螺纹紧固件、螺栓、锁紧紧固件等方向，能够解决影响嵌套式复合型材强度、影响美观、嵌套式复合型材结构变形等问题，达到结构简单、提高强度和刚性、方便拆卸的效果

Active Publication Date: 2010-11-17
NINGBO BANGDA INDAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004]However, the horizontal edge (or vertical edge) after the first component and the second component are bonded is a double-layer structure, in order to prevent the first component and the second component from being separated To ensure the strength of the embracing beam, the traditional method is to use the electric welding process to fix the double-layer horizontal side (or double-layer vertical side) after bonding. However, the welding process is easy to leave weld scars and affect the appearance. On the other hand Because the beam and column are elongated structures, the welding head cannot reach into the middle of the beam and column, but the double-layer structure in the middle is welded and connected. In addition, welding can only strengthen the double-layer structure and cannot support it. The function of the inner cavity of the nested composite profile makes the nested composite profile prone to structural deformation because the inner cavity is hollow; in addition, there are currently sleeve structures inserted into the cavity of the nested composite profile, and the two ends of the sleeve are respectively It leans against the corresponding inner wall of the double-layer structure, thereby playing a dual role of support and reinforcement, but the sleeve reinforcement method has the same problem as welding, that is, the sleeve can only be set on the nested composite profile member close to the opening At both ends, for beams and columns with a nested composite structure in a long strip structure, it is difficult for the sleeve to extend into the middle of the cavity of the beam and column, and the double-layer structure in the middle of the beam and column cannot be reinforced, which in turn affects the nested composite structure. Strength of Composite Profiles

Method used

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  • Heteromorphic bolt and fastening device adopting same
  • Heteromorphic bolt and fastening device adopting same
  • Heteromorphic bolt and fastening device adopting same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Embodiment one, such as Figure 1 ~ Figure 4 Shown:

[0028] The fastening device of the first embodiment is used in a nested composite profile member, which can be a column and a beam of a three-dimensional garage underframe or a storage shelf, or can be a beam-column structure of other equipment.

[0029] The nested composite profile member in this embodiment is a hollow thin-walled cylinder with a rectangular cross section. The nested composite profile member is formed by cold rolling process and consists of two first members 1 and second members 2 with the same shape and size. embracing each other;

[0030]Among them, the nested composite profile member P includes a first member 1 and a second member 2 that are nested and combined with each other. The first member 1 has a first side 11 and a second side 12 that are arranged parallel to each other. The first side A first vertical side 13 is connected between the side 11 and the second side 12, the second member 2 h...

Embodiment 2

[0035] Embodiment two, such as Figure 5 ~ Figure 8 Shown:

[0036] The fastening device of the second embodiment is also installed on the nested composite profile member, and the structure of the nested composite profile member is the same as that of the first embodiment, and will not be repeated here.

[0037] The difference between the second embodiment and the first embodiment is that the cross-section of the two ends 521 of the body 52 of the special-shaped bolt in the second embodiment near the screw rod is round or rectangular, while the cross-section of the middle part of the body 52 of the special-shaped bolt is circular, and In addition to the special-shaped bolt 5 and the nut 6 connected to the special-shaped bolt screw 51, the fastening device also has a stop sleeve 7 that is also connected to the special-shaped bolt screw 51. The stop sleeve 7 has a function that can be adapted to the screw. The head 71 and the pin 72 extending axially along the head 71 .

[003...

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Abstract

The invention discloses a heteromorphic bolt. The heteromorphic bolt is characterized by comprising a body and bolts arranged at the two ends of the body, wherein the cross sections of the two ends, adjacent to the bolts, of the body are non-circular; and the axial projection of the cross section of the middle part of the body is positioned in the non-circular axial projection at the two ends of the body. Compared with the prior art, the heteromorphic bolt of the invention has the characteristics of simple structure and easy installation, and can improve the strength and the rigidity of a nested composite profile component after connection. A fastening device adopting the heteromorphic bolt plays a role in supporting as well as reinforcing, and can effectively prevent the deformation of the nested composite profile component; in addition, a through hole for installing the fastening device can be reserved at any position along to the height direction of the nested composite profile component; fixation can be realized by only rotating and misplacing the heteromorphic bolt after passing through the through hole; and the fastening device has the characteristics of simple and convenient operation and convenient distillation, so that the installation of the fastening device can be unrestrained by the size structure of a composite profile component.

Description

technical field [0001] The invention relates to a special-shaped bolt and the application of the special-shaped bolt in a fastening device of a nested composite profile member. Background technique [0002] In the prior art, most of the beam-column components used in equipment such as three-dimensional garage underframes, storage shelves, and frame structures are profile structures. The standard profiles purchased directly on the market have simple cross-sectional shapes and single structures. And the appearance quality is poor, and it lacks aesthetic feeling when used in products; moreover, the length of standard profiles purchased on the market is generally much longer than the beams or columns in actual use, and the excess length needs to be cut off, so that in the whole processing process, The leftover material of standard profiles will be cut off a lot, the waste of raw materials is serious, and the utilization rate of materials is low. [0003] In order to save raw ma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16B35/04F16B39/24
CPCF16B35/06F16B21/02F16B35/04F16B35/041F16B33/002F16B7/18F16B39/22
Inventor 朱建华
Owner NINGBO BANGDA INDAL