Double-wedge tongue locking type folder
Technical field:
The present invention relates to a kind of bicycle folder, particularly a kind of interlocking is effective, double-wedge tongue locking type folder that can attenuate stamped metal material.
Technical background:
Although the kind of bicycle folder has manyly in the market, utilizes the folder difficulty of wedge tongue interlocking to seek trace, the splendid double-wedge tongue locking type folder of interlocking effect nowhere to search especially.
Summary of the invention:
Purpose of the present invention, be to provide a kind of and lock and open conveniently, interlocking is effective, cost is low, appearance effect is good double-wedge tongue locking type folder.The object of the present invention is achieved like this: double-wedge tongue locking type folder, comprise former piece, consequent, band is bolt and double-wedge tongue spare, it is characterized in that: former piece is that to strike out the opening of three flange with sheetmetal box-like, an earhole respectively is with at the two ends of former piece opening part flange, three holes of equidistant arrangement on the opposite side of former piece opening, mesopore is for being with the hole that penetrates of bolt, two lateral opening be the pilot hole of double-wedge tongue spare, middle part at the bottom of the former piece box is turned over and is stuck up ear, turn over stick up on the ear with holes, consequent is one side roll coil of strip circle, the sheetmetal blanked part of another sideband flanging, on the flanging of consequent with two interlocking holes, the volume circle hole of consequent and two earholes of former piece are rotatably connected, band penetrates mesopore to bolt, is screwed in the screw of double-wedge tongue again, penetrates turning over of former piece again and sticks up in the earhole, and then will be with the end points place of bolt is put packing ring and mixes pin, two thes tip of the tongue of double-wedge tongue spare penetrate in two pilot holes of former piece.
The invention has the beneficial effects as follows: utilize two interlocking holes of two pilot holes and the former piece of consequent, carry out interlocking with double-wedge tongue spare, intensity is better than traditional interlocking mode, utilizes band that bolt is screwed and advances double-wedge tongue spare, can make structure of the present invention simpler.
Description of drawings:
Fig. 1 is organigram of the present invention and opens figure when folding
Fig. 2 is the present invention's effect schematic diagram when locking
Among the figure: 1---former piece, 2---consequent, 3---be with bolt 4---double-wedge tongue spare.
The specific embodiment:
According to Fig. 1, Fig. 2, described double-wedge tongue locking type folder comprises that former piece 1, consequent 2, band are bolt 3 and double-wedge tongue spare 4;
Described former piece 1, it is the opening box-like body that strikes out three flange with sheetmetal, the end points of described former piece 1 opening both sides flange respectively is with an earhole, the opposite side of described former piece 1 opening is arranged with three holes, mesopore is that described band is the hole that penetrates of bolt 3, two lateral opening be the pilot hole of described double-wedge tongue 4, the middle part at the bottom of described former piece 1 box has with holes turning over to stick up ear, the shallow slot mouth is all left at middle part and two of described former piece 1 flange bead;
Described consequent 2, to strike out roll coil of strip circle on one side with sheetmetal, the parts of another sideband flanging, two holes are arranged on the flanging of described consequent 2, one U font gap is arranged between two holes, two holes on described consequent 2 flangings are the interlocking hole of described double-wedge tongue spare 4, U font gap on described consequent 2 flangings, with described band being complementary at the bottom of the bundle of circles of bolt 3, there is the electric welding reinforcement at the place of sewing up of described consequent 2 volume circles, the centre of described consequent 2 is with auxiliary hole, a crossette respectively is with at two of described consequent 2, the shallow slot mouth at two crossettes of described consequent 2 and described former piece 1 flange bead two is complementary, and the volume circle of described consequent 2 is by being rotatably connected to lock bolt and 1 liang of earhole of described former piece.
Described band is bolt 3 that the root of a bolt is connected with a plastics handgrip, and described band has a pin-and-hole to the top of bolt 3.
Described double-wedge tongue spare 4, to rush part and with the recessed connector apart from the shape punching of circular arc with the recessed fork-shaped of circular arc, with described with the recessed fork-shaped of circular arc rush part with circular arc recessed close up connection apart from the shape punching after, will attack thread in the recessed circular hole that is combined into of two circular arcs again and make described double-wedge tongue spare 4.