CN103306548A

CN103306548A - Self-locking lockpin

Info

Publication number: CN103306548A
Application number: CN2012100696606A
Authority: CN
Inventors: 刘玉建
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-03-16
Filing date: 2012-03-16
Publication date: 2013-09-18

Abstract

The invention discloses a self-locking lockpin used for locking a plastic-steel sliding window. A lockpin stick is composed of a double-strand steel wire 5; the rear ends of the double-strand steel wire 5 are symmetrically provided with sawtooth-shaped pin teeth 4 which are arranged at the rear part in a right angle; the rear ends of the double-strand steel wire 5 are respectively provided with a closed ring shape; a handle 3 higher than a ring-shaped plane is folded on each ring shape; when the two handles 3 are pinched, the elastic force of the double-strand steel wire 5 is contracted; the V-shaped double-strand steel wire 5 is overlapped with the sawtooth-shaped pin teeth; the lockpin stick with the reduced diameter just goes through a lockpin hole 7 in a lockpin plate 1, and can smoothly go into the lockpin hole 7 and go out of the lockpin hole 7; when the lockpin is in a free state, the lockpin plate 1, the edge of a plastics-steel door and window jack and the edge of a metallic framework hole simultaneously lock the window as the popped pin teeth 4 in multiple layers are reversely hooked, so that the safety effect of the self-locking lockpin can be guaranteed absolutely.

Description

The self-locking lock pin

Technical field

The invention belongs to the self-locking lock pin of a kind of latch gear, particularly a kind of inserted mode of lock pin plastic-steel sliding door and window.

Background technology

At present the plastic-steel sliding door and window all is to establish bright lock pin at surface location, and this lockpin ventilating is crossed and rotated shank of the key eight and live the hook of establishing on another window two door and windows can not be spurred relatively.Also having the common feature of the latch gear of similar this appearance installation is the structure relative complex, what be subjected to that the restriction of appearance requirement can not design again is too slightly too large, therefore this thin latch gear safety of structures shape that is located at the appearance place is too poor, and the robber need not difficultly just can crack.Among the peoplely be used in the method that two windows drill through the hole, insert with nail and carry out lock pin, although improve than being located at lip-deep lock pin theftproof, but the risk of being pushed aside by the robber and withdrawing from is arranged; Have a kind of product imitative with this structure of having followed closely exactly, specially make a lock pin rod, in order to prevent being refuted out the back with long-armed locked pin plate, the glide path by plastic-steel window come eight firmly locked pin plate prevent that the lock pin rod from being transferred to.But the shortcoming of this structure can only be installed in the slideway next door near plastic-steel door and window, can not be installed on other position of door and window, establish a larger lock locking device of quality improves cost relatively, the latch gear that independently stretches out is also plain in outward appearance, if if want to select on material stainless steel will greatly increase cost and price, secondly the problem of most critical is by slight rotation the possibility that is cracked to be arranged still.

Summary of the invention

The purpose of this invention is to provide stainless steel self-locking lock pin a kind of simple in structure, safe, convenient, attractive in appearance.

Technical scheme of the present invention is: a kind of self-locking lock pin, by lock pin rod and the anti-installation composition of refuting, the lock pin rod is comprised of bifilar steel wire 5, steel wire 5 is converted into a nose circle 6 that has into camera function in the centre, become " V " shape to extend back and be converted into symmetrical zigzag pin tooth 4 after the respective distance, zigzag pin tooth 4 right angles are located at the rear portion, after continuing to extend respective distance steel wire 5 terminations are converted into the right angle, and then be converted into the annular of a sealing, at handle 3 that is higher than planar annular of annular folding.

Establish lockpin hole 7 and fixing hole 2 on the locked pin plate 1, lockpin hole 7 diameters are greater than " diameter " at zigzag pin tooth 4 places after superposeing.

Effect of the present invention is: the detent configuration of two structure of steel wire is simple especially, although the thin metal lock pin rod that it just is located in the jack of two door and windows with thick rod shape has same lock pin effect, namely has a husband when the effect of closing Wan Fumokai; Thin and the structure materials without unnecessary accessory are relatively few again, can select valuable stainless steel material like this, both artistic and practical; Bifilar steel wire be converted into before correct and form a point and round and smooth lock pin enters head, simple concerning processing technology, concerning using, easily insert smoothly, simple to operate, handy; Establish the structure of zigzag pin tooth at bifilar steel wire, utilized the elasticity of steel wire will sell tooth be stuck in the lockpin hole edge of lock jam plate and plastic-steel jack edge, the inner skeleton the step place is arranged the time play backward just, reached and prevented the effect of refuting out; Establish the structure of locked pin plate in the door and window hole, the one, be a kind of decorative appearance to the jack that gets out, the 2nd, have the function that locked pin plate blocks, namely the pin tooth of bifilar steel wire is stuck on the locked pin plate under the elastic force effect of steel wire, can't return, and has reached the purpose of lock; Establish the handle of a circular ring type in the rear end of bifilar steel wire, the one, the two-end-point of bifilar steel wire is done appropriate outward appearance process, two is that two handles that slightly protrude can be when extracting lock pin out, pinch the elastic force contraction that two steel wires is made two steel wires with hand, profile of tooth pin tooth overlapping " diameter " (concept with lock pin rod shape is called " diameter ") of dwindling rear pin tooth place, can be extracted lock pin out by the lockpin hole on the locked pin plate, and be easy to operate simple; The right angle of zigzag pin tooth 4 is located at the rear portion, plays the effect of anti-hook, utilizes elastic force to form the anti-self-locking device of refuting simple in structure, safe and reliable; Finished various shape and function with a steel wire, from manufacture view, technique is simple, processing cost is low.

Description of drawings

Accompanying drawing is structural representation of the present invention.

Among the figure, 1, locked pin plate, 2, fixing hole, 3, handle, 4, the pin tooth, 5, steel wire, 6, nose circle, 7 lock lockholes

Specific embodiment

Below in conjunction with accompanying drawing the embodiment of the invention is further described.

With reference to accompanying drawing, the lock pin rod is comprised of the steel wire 5 of a stainless steel material, steel wire 5 is converted into a nose circle 6 that has into camera function in the centre, become " V " shape to extend back and be converted into symmetrical zigzag pin tooth 4 after the respective distance, zigzag pin tooth 4 right angles are located at the rear portion, play the effect of anti-hook, formed the anti-device of refuting.This zigzag pin tooth 4 can be established a plurality of, also can only establish two, and namely each steel wire 5 is established one.After continuing to extend respective distance steel wire 5 terminations are converted into the right angle, and then are converted into the annular of a sealing, at handle 3 that is higher than planar annular of annular folding.

During use locked pin plate 1 is fixed on hole-drilled Plastic steel door or the window, be screwed by fixing hole 2, on establish lockpin hole 7, lockpin hole 7 and fixing hole 2, lockpin hole 7 diameters are greater than " diameter " (being called " diameter ") at zigzag pin tooth 4 places of stack with respect to the concept of lock pin rod.

When pinching two handles 3 elastic force of steel wire 5 is shunk, be bifilar steel wire 5 and the overlapping diameter that dwindles into the lock pin rod of profile of tooth pin tooth of " V " type, it is just in time withdrawed from by the lockpin hole 7 on the locked pin plate 1.Can directly the self-locking lock pin be pushed in during insertion, because zigzag pin tooth 4 structures are to advance the reverse hook that can not move back, easy to operate simple.Ellipse can also be made in the hole of lockpin hole 7, the self-locking lock pin is turned an angle more increase the difficulty that withdraws from, and again increases safe effect and the handled easily of lock pin.

The embodiment of a plurality of zigzag pin teeth 4 can also can use in the situation that do not establish locked pin plate 1, namely utilizes self the edge in hole and the effect of playing locked pin plate 1 of the edge in inner metallic framework hole of plastic-steel door and window.Be included in the situation of locked pin plate 1, the edge in these edges and metallic framework hole also plays the barrier effect of multilayer simultaneously, makes the safe effect of lock pin obtain critical assurance.

Claims

1. self-locking lock pin, by lock pin rod and the anti-installation composition of refuting, it is characterized in that, the lock pin rod is comprised of bifilar steel wire 5, and steel wire 5 is converted into a nose circle 6 that has into camera function in the centre, becomes " V " shape to extend back and is converted into symmetrical zigzag pin tooth 4 after the respective distance, zigzag pin tooth 4 right angles are located at the rear portion, after continuing to extend respective distance steel wire 5 terminations are converted into the right angle, and then are converted into the annular of a sealing, at handle 3 that is higher than planar annular of annular folding.

2. self-locking lock pin according to claim 1 is characterized in that, establishes lockpin hole 7 on the locked pin plate 1, and lockpin hole 7 diameters are greater than " diameter " at zigzag pin tooth 4 places after superposeing.