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Castellated head bolt

A bolt and tooth technology, applied in the direction of bolts, screws, nuts, etc., can solve the problems of inconvenient installation and low installation efficiency, and achieve the effect of convenient installation, improved installation efficiency and beautiful appearance.

Inactive Publication Date: 2010-12-29
宋翔 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In the actual use of the above scheme, since the hole drilled at any part of the surface of the plate is perpendicular to the direction of bolt rotation, it is necessary to use a small wrench to extend into the mounting hole to clamp the polygonal nut, and the wrench can be used to rotate the nut. , drive the bolts and nuts in the holes to tighten, so that the two plates are firmly connected; there are still many problems in this way: on the one hand, it is necessary to use a wrench to rotate the bolts to connect the plates; on the other hand, during the rotation process, the wrench It can only be rotated by a certain angle at one time, that is to say, the bolt can only be rotated by a certain angle, which is extremely inconvenient to install and makes the installation efficiency very low

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] Refer to the attached Figure 1-10 , the invention discloses a tooth-shaped head bolt, which includes a screw neck 3 and a nut 2 on the upper part of the screw neck 3. The top end of the nut 2 is provided with a plurality of rotating teeth extending along the axial direction of the bolt and driving the bolt to rotate. 1. The tooth gap formed between every two rotating teeth 1 matches the head of the screwdriver, and the screwdriver that is perpendicular to the axial direction of the bolt rotates to drive the rotating teeth 1 to rotate. The rotating tooth 1 is a bevel tooth or a straight tooth, and the bottom of the tooth is flat-bottomed or arrow-shaped or cylindrical with a taper. The lower part of the screw neck 3 is a screw body 4, the lower part of the screw body 4 is a threaded section 5, and the threaded section 5 is threadedly connected with the embedded nut, or the threaded section 5 is a self-tapping thread, or the end of the bolt is an expansion joint. bolt. ...

Embodiment 2

[0058] Refer to the attached Figure 11-36 , the screw neck 3 and the nut 2 are equipped with a bolt pad, the bolt pad includes a U-shaped groove 6 matched with the screw neck 3, an inner cavity 11 for accommodating the nut 2 and a support hole 7 for a screwdriver to extend into, The screw neck 3 is inserted in the U-shaped groove 6, the nut 2 is inserted in the inner cavity 11, the support hole 7 communicates with the inner cavity 11, and the top end of the nut 2 is facing the inner cavity 7 screwdriver. The U-shaped groove 6, the support hole 7 and the inner cavity 11 form an integral cylindrical structure; or the length of the support hole 7 and the inner cavity 11 is shorter than the length of the U-shaped groove 6, and the overall shape is L-shaped; Or the oblique section is an irregular structure. The U-shaped groove 6 forms a gasket that is independently matched with the screw neck 3, and the support hole 7 and the inner cavity 11 form an installation tool support. Th...

Embodiment 3

[0060] As the best implementation mode of the present invention, the bolts described in Example 1 and the bolt pads in Example 2 are used in combination to achieve better results.

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Abstract

The invention discloses a castellated head bolt which comprises a screw neck and a screw cap arranged at the upper part of the screw neck, the top of the screw cap is provided with a plurality of rotating teeth which extend in the axial direction of the bolt and drive the bolt to rotate, a tooth gap formed between every two rotating teeth is matched with the head of a screwdriver, and the rotating teeth can be driven to rotate by the rotation of the screwdriver perpendicularly matched with the axial direction of the bolt. By using the invention for connection, the bolt can be rotated without using a spanner, and has the advantages of convenient installation and high efficiency.

Description

technical field [0001] The invention relates to a toothed head bolt suitable for connecting and installing furniture boards. Background technique [0002] In the furniture industry, in order to facilitate the installation, transportation and disassembly of furniture, three-in-one fasteners or "crescent" type four-in-one fasteners are usually used as connecting fasteners between the various components in the furniture. [0003] These two kinds of connecting fasteners all have certain defects. The three-in-one screw fastener has the characteristics of fast installation and beautiful appearance (only the fastener end is exposed on the surface of the furniture), but the stress point of this connecting fastener is small, the assembled furniture is poor, the service life is short, and it is not durable Generally, it will be damaged if it is moved once or twice; the crescent-shaped four-in-one fastener is composed of screw, nut, gasket and pre-nut, and two plates are connected by ...

Claims

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Application Information

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IPC IPC(8): F16B35/04F16B35/06F16B23/00F16B33/02
Inventor 宋翔陈小红
Owner 宋翔
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