CN101475043A

CN101475043A - Shock-absorbing front fork

Info

Publication number: CN101475043A
Application number: CNA2009100677393A
Authority: CN
Inventors: 李玉祥; 蔡生发
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-01-20
Filing date: 2009-01-20
Publication date: 2009-07-08

Abstract

The invention relates to a shock-absorbing front fork. The front fork comprises an upper Y-type pipe, a lower Y-type pipe, a fork hook and a shoulder box, wherein the lower end of the lower Y-type pipe is in an opening shape; a round nut is welded inside the lower Y-type pipe; a pole is screwed into the round nut and extends out of the lower Y-type pipe; a spring is arranged into the lower Y-type pipe to be supported against the pole; the upper Y-type pipe is inserted into the lower Y-type pipe, while a plug is screwed on the other end of the upper Y-type pipe; the fork hook is inserted in the opening end of the lower Y-type pipe in a close match way; the fork hook is provided with a center hole; the pole extending from the lower Y-type pipe is locked by a nut; the fork hook is provided with a lantern ring and a brake positioning button; two upper Y-type pipes are connected into a whole by the shoulder box; positions of holes at two ends of the shoulder box are provided with breaches, and are locked by bolts with internal hex nuts; a center hole on the shoulder box is fixed with a vertical pipe of the front fork; and metals are coated inside and outside the shoulder box. The shock-absorbing front fork has the advantages of firmness and durability, safety and reliability, nice appearance and wide application range, and can be widely used on an electric vehicle, an electro-tricycle, a bicycle and a tricycle.

Description

Shock-absorbing front fork

Technical field

The present invention relates to a kind of front fork, particularly relate to a kind of sturdy and durable, safe and reliable, the shock-absorbing front fork of appearance looks elegant.

Background technology

As everyone knows, the as easy as rolling off a log weakness fracture of fork hook on the front fork of battery-driven car and bicycle and breeches pipe solder together at present at plug, in addition, the shoulder box adopts steel casting to occur sand holes easily, fracture also appears in pore easily, in a single day fractureing appears in above-mentioned two parts, fatal accident will occur, to the life security generation threat greatly of the person.

Summary of the invention

Main purpose of the present invention is to overcome above deficiency and provides a kind of sturdy and durable, and is safe and reliable, the shock-absorbing front fork of appearance looks elegant.

The technical solution adopted for the present invention to solve the technical problems is: it comprises upper branch pipe, following breeches pipe, fork hook and shoulder box, it is characterized in that: the lower end of following breeches pipe is opening-like, be welded with circular nut in the following breeches pipe, screwed stock revolved circular nut and stretched out the open end of the lower end of breeches pipe down, then, put into spring and withstand stock, one end of upper branch pipe inserts in the following breeches pipe, the other end is screwed into the plug of hexagonal in the band, fork hook is plugged on down the open end of the lower end of breeches pipe, fork hook and following breeches pipe flush fit, have centre hole on the fork hook, and will descend the screwed stock locking of stretching out in the breeches pipe with nut, also have on the fork hook and the front wheel spindle bonded assembly collar and brake navigation button; Two upper branch pipes fuse with the shoulder box, and the place, hole at shoulder box two ends has gap and uses the bolt locking of band hexagonal socket nut, and interstitial hole and vertical tube of front fork on the shoulder box are fixed, and all are surrounded by metal inside and outside the shoulder box.

The present invention can also adopt following technical measures:

Described shoulder box adopts steel stamping part.

The metal that is surrounded by inside and outside the described shoulder box is aluminum or aluminum alloy or magnesium alloy.

Advantage and good effect that the present invention has are: sturdy and durable, safe and reliable, because of all being surrounded by metal event appearance looks elegant, applied range inside and outside fork hook and the shoulder box, can be widely used in the battery-driven car of oil pressure and imitative oil pressure and the shock-absorbing front fork on the electro-tricycle, also can be used on bicycle, the three-wheel vehicle.

Description of drawings

Fig. 1 is an integral structure scheme drawing of the present invention;

Fig. 2 is the fork hook structural representation;

Fig. 3 is a shoulder box structural representation.

Among Fig. 1-Fig. 3: 1. upper branch pipe, 2. descend breeches pipe, 3. fork hook, 4. shoulder box, 5. circular nut, 6. stock, 7. spring, 8. plug, 9. nut, the 10. collar, 11. navigation buttons, 12. bolts, 13. vertical tube of front fork, 14. metals.

The specific embodiment

For further understanding summary of the invention characteristics of the present invention and effect following examples for example now, and conjunction with figs. is described in detail as follows, and sees also Fig. 1-Fig. 3.

As shown in Figure 1: it comprises upper branch pipe 1, following breeches pipe 2, fork hook 3 and shoulder box 4, the lower end of following breeches pipe 2 is opening-like, be welded with circular nut 5 in the following breeches pipe 2, screwed stock 6 revolved circular nut 5 and stretched out the open end of the lower end of breeches pipe 2 down, then, putting into spring 7 withstands on the stock 6, one end of breeches pipe 1 inserts in the following breeches pipe 2, the other end is screwed into the plug 8 of hexagonal in the band, fork hook 3 as shown in Figure 2 is plugged on down the open end of the lower end of breeches pipe 2, fork hook 3 and following breeches pipe 2 flush fits, have centre hole on the fork hook 3, and will descend 7 lockings of the screwed stock that stretches out in the breeches pipe 2 with nut 9, with being fixed together of its safety, also have navigation button 11 on the fork hook 3 with the front wheel spindle bonded assembly collar 10 and brake; Two upper branch pipe 1 usefulness shoulder box 4 as shown in Figure 3 fuses, shoulder box 4 adopts steel stamping part, the place, hole at shoulder box 4 two ends has gap and uses bolt 12 lockings of band hexagonal socket nut, the interstitial hole of shoulder on the box 4 is fixing with vertical tube of front fork 13, takes on and all is surrounded by aluminum alloy 14 (or aluminium, magnesium alloy) inside and outside the box 4.

Its advantage is: sturdy and durable, safe and reliable, and because all being surrounded by the metal event inside and outside fork hook 4 and the shoulder box 4 Appearance looks elegant, applied range can be widely used in the electric motor car and electro-tricycle of oil pressure and imitative oil pressure Shock-absorbing front fork, also can be used on bicycle, the tricycle.

Claims

1. shock-absorbing front fork, it comprises upper branch pipe (1), following breeches pipe (2), fork hook (3) and shoulder box (4), it is characterized in that: the lower end of following breeches pipe (2) is opening-like, be welded with circular nut (5) in the following breeches pipe (2), screwed stock (6) revolved circular nut (5) and stretched out the open end of the lower end of breeches pipe (2) down, then, put into spring (7) and withstand stock (6), one end of upper branch pipe (1) inserts in the following breeches pipe (2), the other end is screwed into the plug (8) of hexagonal in the band, fork hook (3) is plugged on down the open end of the lower end of breeches pipe (2), fork hook (3) and following breeches pipe (2) flush fit, fork hook has centre hole on (3), and will descend screwed stock (7) locking of stretching out in the breeches pipe (2) with nut (9), also has on the fork hook (3) and the front wheel spindle bonded assembly collar (10) and brake navigation button (11); Two upper branch pipes (1) fuse with shoulder box (4), the place, hole at shoulder box (4) two ends has gap and uses bolt (12) locking of band hexagonal socket nut, interstitial hole on the shoulder box (4) and vertical tube of front fork (13) are fixing, all are surrounded by metal (14) inside and outside fork hook (3) and the shoulder box (4).

2. shock-absorbing front fork according to claim 1 is characterized in that: the metal (14) that is surrounded by inside and outside the described fork hook (3) is aluminum or aluminum alloy or magnesium alloy.

3. shock-absorbing front fork according to claim 1 is characterized in that: described shoulder box (4) adopts steel stamping part.

4. shock-absorbing front fork according to claim 1 is characterized in that: the metal (14) that is surrounded by inside and outside the described shoulder box (4) is aluminum or aluminum alloy or magnesium alloy.