CN2424987Y

CN2424987Y - Locking structure for bicycle saddle

Info

Publication number: CN2424987Y
Application number: CN 00208487
Authority: CN
Inventors: 廖学湖; 何威廉
Original assignee: Xinlong Vehicle Material Shenzhen Co ltd
Current assignee: Xinlong Vehicle Material Shenzhen Co ltd
Priority date: 2000-04-21
Filing date: 2000-04-21
Publication date: 2001-03-28
Anticipated expiration: 2010-04-21

Abstract

The utility model relates to a tight locking structure for bicycle seat cushions, which comprises a hollow seat rod 10, a sheathing block body 20 which is fixed to the seat rod 10 and is provided with a semicircular-shaped surface, a positioning narrow block 40, etc. The surface of a tight clamping block 40 is a convex shape 404, and is inosculated with a concave body 304 of a positioning block 30 mutually. The center of the tight clamping block 40 is provided with a threaded hole 403. The threaded hole 403, a through hole 303, and a long narrow hole 201 are aligned mutually, and then are matched with a screw bolt 50 to penetrate through and to be fixedly locked inside the threaded hole 403. The tight locking structure for bicycle seat cushions has the advantages of simple structure, ability of adjusting angles of the bicycle seat cushions conveniently, rapidly, and accurately, timesaving and laborsaving installation, etc.

Description

The bicycle saddle cushion locking mechanism

The utility model relates to a kind of bicycle saddle cushion locking mechanism, and especially a kind of structure is simple more, more time saving and energy saving bicycle saddle cushion locking mechanism is installed in adjustment.

Bench lock locking structure (see figure 1) on the market roughly is to pass socket block 20 respectively with a bolt 50 at present, position fixing narrow piece 30 and clamp 40, cooperate a nut 80 with seat cushion 90 lockings again, but this structure must borrow a nut 80 lockings, nut 80 is exposed to the outside, not only be hooked to other thing easily, and during set-up cost.

The purpose of this utility model is to provide a kind of bicycle saddle cushion locking mechanism that has improved, to overcome above-mentioned deficiency.

The purpose of this utility model is achieved in that the bicycle saddle cushion locking mechanism, comprises that a socket block 20, its center of the surperficial semicircular in shape on a hollow seat bar 10, the fixing present bar 10 is provided with a long slot 201; A perforation 303 is established at one position fixing narrow piece, 30 centers, the centrally aligned of its center and long slot 201, and be respectively equipped with the draw-in groove 301,302 of circular arc in the relevant position; One clamp center is provided with tapped bore 403, this tapped bore 403 is aimed at above-mentioned long slot 201 and is bored a hole 303, and barrel bolt 50 locking positioning pieces 30, draw-in groove 301,302 places in the relative circular arc in the both sides of clamp 40 are provided with positioning round groove 401,402 respectively, in order to clamp the

seat cushion bar

70,71 of seat cushion, it is characterized in that: clamp 40 surfaces are convexs 404, and are identical mutually with the concave volume 304 of locating piece 30; Clamp 40 centers are provided with tapped bore 403, and tapped bore 403, through hole 303, long slot 201 align each other, and barrel bolt 50 penetrate again, are locked in tapped bore 403.

The utility model compared with prior art, have simple in structure, can be convenient, adjust the bicycle saddle cushion angle rapidly, accurately, advantages such as time saving and energy saving are installed.

Description of drawings of the present utility model is as follows:

Fig. 1 is the bicycle saddle cushion locking mechanism scheme drawing of prior art;

Fig. 2 is a bicycle saddle cushion locking mechanism decomposing schematic representation of the present utility model;

Fig. 3 is the cross-sectional schematic of this bicycle saddle cushion locking mechanism;

Fig. 4 adjusts the cross-sectional schematic of another angle for this bicycle saddle cushion locking mechanism.

As Fig. 2, shown in Figure 3, bicycle saddle cushion locking mechanism of the present utility model comprises that a socket block 20, its center of the surperficial semicircular in shape on a hollow seat bar 10, the fixing present bar 10 is provided with a long slot 201; One position fixing narrow piece, 30 bottoms are tooth line semicircle and place on the recess of socket block 20, the tooth line of socket block 20 and the tooth line of position fixing narrow piece cooperatively interact, be provided with a through hole 303 at position fixing narrow piece 30 centers, the centrally aligned of its center and long slot 201, and be respectively equipped with the draw-in groove 301,302 of circular arc in the relevant position; Be provided with tapped bore 403 at clamp 40 centers, this tapped bore 403 is aimed at above-mentioned long slot 201 and is bored a hole 303, and barrel bolt 50 locking positioning pieces 30, draw-in groove 301,302 places in the relative circular arc in the both sides of clamp 40 are provided with positioning round groove 401,402 respectively, in order to clamp the

seat cushion bar

70,71 of seat cushion, clamp 40 surfaces are convexs 404, and are identical mutually with the concave volume 304 of locating piece 30; Clamp 40 centers are provided with tapped bore 403, and tapped bore 403, through hole 303, long slot 201 align each other, and barrel bolt 50 penetrate again, are locked in tapped bore 403.

Position fixing narrow piece 30 surfaces have a concave bottom 304, and clamp 40 lower surfaces have a convex shape 404, and position fixing narrow piece 30 cooperates, coincide mutually for concavo-convex with clamp 40.Clamp 40 centers are provided with tapped bore 403, tapped bore 403, through hole 303 and long slot 201 are alignd each other, barrel bolt 50 lockings again, bolt 50 can cooperate long slot 201 to adjust the seat cushion angle as long as loosen, this moment, locating piece 30 was loosened, need only rotate an angle by locating piece 30, can adjust the bicycle saddle cushion angle rapidly, accurately.

Socket piece 20 comprises: a center is provided with the half-round recessed 202 of long and narrow hole 201; This position fixing narrow piece 30 is tooth line semicircle, is arranged on the recess 202, at the relative position of position fixing narrow piece 30 two

bars

70,71 that a circular arc draw-in

groove

301 and 302 is used for locating seat cushion is set respectively; Locating piece 30 centers are provided with a through hole 303 and aim at long and narrow hole 201, and in addition, locating piece 30 inside are provided with concave shape 304, and its concave shape 304 cooperatively interacts with the convex form 404 that clamp 40 is provided with, and is simple in structure.One clamp, 40 centers are provided with a tapped through hole 403, and barrel bolt 50 locking positioning pieces 40.There is a concave bottom 304 locating piece 30 inside, and clamp 40 bottoms have a convex body 404, and this is concavo-convex identical mutually.

As shown in Figure 3, as long as the bolt 50 of loosening can cooperate long slot 201 to adjust the seat cushion angle.

As shown in Figure 4, this lock screw is loosened during adjustment, and 50 rotations of locating piece 40 and bolt, one angle is promptly convenient time saving and energy saving again.

Claims

1. a bicycle saddle cushion locking mechanism comprises that a socket block (20), its center of the surperficial semicircular in shape on a hollow seat bar (10), the fixing present bar (10) is provided with a long slot (201); A perforation (303) is established at one position fixing narrow piece (30) center, the centrally aligned of its center and long slot (201), and be respectively equipped with draw-in groove (301), (302) of circular arc in the relevant position; One clamp center is provided with tapped bore (403), this tapped bore (403) is aimed at above-mentioned long slot (201) and perforation (303), and barrel bolt (50) locking positioning pieces (30), positioning round groove (401), (402) are located to be provided with respectively in draw-in groove (301), (302) in the relative circular arc in both sides of clamp (40), in order to clamp seat cushion bar (70), (71) of seat cushion, it is characterized in that: clamp (40) surface is convex (404), and is identical mutually with the concave volume (304) of locating piece (30); Clamp (40) center is provided with tapped bore (403), and tapped bore (403), through hole (303), long slot (201) align each other, and barrel bolt (50) penetrate again, are locked in tapped bore (403).

2. a kind of bicycle saddle cushion locking mechanism according to claim 1 is characterized in that: described position fixing narrow piece (30) is concavo-convex the cooperation with clamp (40).