CN203223131U

CN203223131U - Dual-head automatic expansion tenon

Info

Publication number: CN203223131U
Application number: CN 201320160145
Authority: CN
Inventors: 韩月峰
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-04-02
Filing date: 2013-04-02
Publication date: 2013-10-02
Anticipated expiration: 2023-04-02

Abstract

A dual-head automatic expansion tenon is formed by a metal pipe and expansion blocks; expansion seams are formed at two ends of the metal pipe; the length of the expansion seam is slightly smaller than and equal to the sum of depths of tenon eyes at two sides of wood materials needing to be connected; each expansion block is conical and made of metal; and the diameter of the rear end of the expansion block is larger than the inner diameter and not larger than the outer diameter of the metal pipe. The dual-head automatic expansion tenon is simple in structure, easy to produce and machine, low in cost and capable of being machined into multiple models with different sizes and lengths to be suitable for the connection of wooden products with different sizes; the dual-head automatic expansion tenon is simple and convenient to use and operate, the expansion blocks are respectively placed in the holes in two ends of the metal pipe, then the two ends of the metal pipe are respectively placed in the tenon eyes of the wood materials needing to be connected, the metal pipe is pressed into the tenon eyes by an extrusion machine, and when the metal pipe is extruded to a certain content, the expansion blocks are pressed into the metal pipe by the bottom ends of the tenon eyes at two sides to expand the expansion seams outwards and tightly connect the metal pipe and the wood materials together; and the problem of easy cracking in the current connection mode is solved, and the product quality and economic benefits are improved.

Description

The automatic Expansion tenon of double end

Technical field

The utility model relates to a kind of carpenter's component, particularly a kind of component for the timber connection.

Background technology

At present, the connection of domestic woodwork is fastening mainly is to rely on dowel to be connected with glue.Some little factories and individual do woodwork to add man-hour are being connected of meeting the eye on every side of full tenon, comparatively robust like this, but shortcoming is time-consuming expense timber, is unfavorable for that also large-scale production processes.The large-scale carpenter of at present domestic some enterprise adopts the dowel that rehearses that punches when timber connects.When doing timber such as timber factory, corresponding punching on the joint face of connecting portion is adopted in the connection of Men Bianyu dop, and the waddy of placing about one ten centimeters in the hole connects, and often is that door does not also dispatch from the factory and just ftractureed, general door three to five years, maximum 8 years just scattered.Now the headache of timber industry is exactly the cracking problem of Men Bianyu dop.

Summary of the invention

The purpose of this utility model is the automatic Expansion tenon of a kind of double end of design, to solve the problem that prior art exists.

Realize that the technical scheme that the utility model purpose is taked is: it is made up of expansion tube and the short piece that expands, and two ends have dilatation joint, and its length is slightly less than and equals to need to connect timber both sides mortise degree of depth sum; The short piece that expands has two, and front end is taper, and the rear end is cylindrical, and the diameter of rear end cylinder is not more than the external diameter of expansion tube greater than the internal diameter of expansion tube.

Expansion tube and the short piece that expands adopt metal or engineering plastics to make.

Good effect of the present utility model is: simple in structure, production and processing is easy, and is with low cost, can be processed into vary in size, the different multiple model of length, connect with the woodwork that is suitable for multiple size; Use simple to operation, the expanding block branch is put into the hole at metal tube two ends, again the metal tube two ends are put into the mortise that needs to connect timber respectively, by extruder metal tube is pressed in the mortise, when being expressed to a certain degree, mortise bottom, both sides is expressed to expanding block in the metal tube, and dilatation joint is outwards opened, and metal tube and timber are tightly linked together; Efficiently solve present connected mode problem easy to crack, improved product quality and economic benefit.

Description of drawings

Accompanying drawing 1 is schematic diagram of the present utility model; Accompanying drawing 2 is the fixing view of using of door limit of the present utility model and dop.

The specific embodiment

As shown in Figure 1, it is made up of metal tube 1 and the short piece 3 that expands, and metal tube 1 two ends have a plurality of dilatation joints 2, and metal tube 1 should be thick-wall metal pipes, and its length is slightly less than and equals to need to connect timber both sides mortise degree of depth sum; Short piece 3 front ends that expand are taper, and the rear end is cylindrical, has two, and metal material, the columniform diameter in its rear end are not more than the external diameter of metal tube 1 greater than the internal diameter of metal tube 1.

As shown in Figure 2, when fixed gate limit and dop, at first will urge bloated piece and put into the hole at metal tube 1 two ends in 3 minutes, again metal tube 1 two ends are put into the mortise of a limit 4 and dop 5 respectively, by extruder extruding door limit 4 and dop 5, metal tube 1 is pressed in the mortise, when being expressed to a certain degree, mortise bottom, both sides will be urged bloated piece 3 and be pushed in metal tube 1, because the short interior warp of the cylindrical diameter in piece 3 rear ends greater than metal tube 1 that expand, force dilatation joint 2 outwards to open automatically, when door limit 4 and dop 5 were pressed together, the expanding end of metal tube 1 tightly linked together door limit 4 and dop 5.

Claims

1. automatic Expansion tenon of double end is characterized in that: it is made up of expansion tube and the short piece that expands, and the expansion tube two ends all have dilatation joint, and expansion tube length is slightly less than and need equals connection timber both sides mortise degree of depth sum; The short piece that expands has two, and front end is taper, and the rear end is cylindrical, and the diameter of rear end cylinder is not more than the external diameter of expansion tube greater than the internal diameter of expansion tube.

2. the automatic Expansion tenon of double end according to claim 1 is characterized in that: expansion tube and the short piece that expands adopt metal or engineering plastics to make.