CN2431432Y

CN2431432Y - Expansion tenon nail

Info

Publication number: CN2431432Y
Application number: CN 00217924
Authority: CN
Inventors: 李其生; 吴国强
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-06-06
Filing date: 2000-06-06
Publication date: 2001-05-23
Anticipated expiration: 2010-06-06

Abstract

The utility model discloses an expansion tenon nail, which is characterized in that a groove is arranged on an expansion body; the periphery of the expansion body is provided with a barb; a wedge is arranged in the groove on the expansion body. Panels can be fixed firmly by using the utility model, which can not damage surfaces of the panels or can not reveal the trace of pinning. The utility model can be used for the assembly process of industries, such as construction, decoration, furniture, etc., and is a fastener worthy of popularization.

Description

The expansion tenon nail

The utility model has related to the nail of fixation, specifically a kind of expansion tenon nail.

Existing iron nail or screw particularly should be fixed on the panel of the good paint of spray on the metope all exposing ailhead on the wall or on the plate face time with plate is fixing, ailhead are exposed, to guarantee that the attractive in appearance of panel is present insoluble problem.

The purpose of this utility model is to provide a kind of improved nail, and it can make can not expose ailhead on the wall or on the plate face time with plate is fixing.

The technical solution of the utility model is achieved in that the expansion tenon nail, it mainly comprises expander, and the nail body of fixedlying connected with expander is characterized in that: have groove on expander, the periphery of expander is provided with hangnail, also establishes contract in the groove of expander.

The utility model will be followed closely body in use earlier and hammer into metope or plate face, expander exposes, the reverse side of the plate that need are fixing bores goes up corresponding perforations, after contract being placed in the groove of expander, again plate aligned expander being beaten embedding gently can fix, the utility model especially is fit to plate is fixed on metope or plate face, has solved both to require plate surface harmless, again the difficult problem that can fixedly secure.

Fig. 1 is the utility model one embodiment's a decomposing schematic representation

Fig. 2 is the side view of contract among Fig. 1

Fig. 3 is the utility model user mode schematic representation

The utility model will be further described below in conjunction with drawings and Examples.

The utility model mainly comprises expander 1, the nail body 2 of fixedlying connected with expander 1, it is different from prior art and is: have groove 3 on expander 1, the groove of present embodiment expander is approximate V-shaped, also can establish a V-shaped groove 4 at nail body end near expander, the periphery of expander 1 is provided with hangnail 5, hangnail 5 approximate indention, waveform or the shape of threads of expander periphery; In the groove 3 of expander, also establish contract 6, inject expander for the ease of this contract, contract 6 upper ends in the enforcement in the expander groove are provided with cap 7, be provided with sword head 8 in the lower end of contract 6, the shape of expander can be made cylindrical shape, square, book sheet shape or other well-regulated shape as required.

The utility model has used the know-why of inverse expansion, on the pinup timber of nail body that will fixedly connected with expander earlier during use, expander is exposed at outside the wall, contract is embedded in the groove of expander, press the position of expansion tenon nail on the timber, correspondingly bore the hole of the identical size with expander and the degree of depth at the reverse side of panel, then the reverse side hole of panel is aimed at expander and it is pressed in the hole, adopt rubber hammer to rap in the front of panel this moment, expander is expanded, link closely after the expander that has a hangnail is risen panel the reverse side hole hole wall and panel fixed, neither can damage the plate face, the vestige that can not expose nail again, the utility model can be widely used in building, decoration, in the assembly technology of industries such as furniture, be a kind of fastening piece of the utilization that is worthy to be popularized.

Claims

1, expansion tenon nail, it mainly comprises expander, the nail body of fixedlying connected with expander is characterized in that: have groove on expander, the periphery of expander is provided with hangnail, also establishes contract in the groove of expander.

2, by the described expansion tenon nail of claim 1, it is characterized in that: the groove of expander is approximate V-shaped, also can establish a V-shaped groove at the nail body end near expander.

3, by the described expansion tenon nail of claim 1, it is characterized in that: the hangnail of expander periphery is similar to indention, waveform or shape of threads.

4, by claim 1 or 2 or 3 described expansion tenon nails, it is characterized in that: the contract upper end in the expander groove is provided with cap, is provided with the sword head in the lower end of contract.