CN2252151Y

CN2252151Y - Anti-theft bicycle frame

Info

Publication number: CN2252151Y
Application number: CN 95237495
Authority: CN
Inventors: 彭忠为
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-08-29
Filing date: 1995-08-29
Publication date: 1997-04-16
Anticipated expiration: 2005-08-29

Abstract

The utility model relates to an anti-theft bicycle frame. The lower end of an inclined rod 1 and the lower end of an inclined rod 2 are respectively connected with a shaft sleeve 3 of a pedal; the inclined rod 2 is formed by the connection of a lower segment 21 and an upper segment 22 by a pin shaft 23; a fixing base 8 is connected with a sleeve barrel 5 of a front fork; a centre pole 9 is connected with the upper part of the inclined rod 1 or a fixing base 7 on the lower part and can swing and rotate; a swiveling joint 10 is connected with the centre pole and can rotate; a connecting rod 11 is connected with the swiveling joint 10 and can swing and rotate; a lock joint 12 is connected with the connecting rod 11 and can swing and rotate; a locking head 19 of a lock joint can enter from a notch 15 and is connected with the fixing base 8 to meet the operating requirements for the bicycle frame or goes out from the notch and passes through a bicycle wheel and a bicycle lock by swinging and rotating to be cooperated with the lock joint 20 for locking the bicycle wheel; when the anti-theft bicycle frame is locked, an upper joint and a lower joint of the inclined rod 2 can swing and rotate; the utility model has the advantages that a whole bicycle is inconvenient to be pushed away and anti-theft effect is good.

Description

The guarding against theft type cycle frame

The utility model relates to the improvement of cycle frame.

The structure of existing cycle frame is seen Fig. 1.Brace 1 is connected with pedal axle sleeve 3 with brace 2 lower ends, and brace 2 upper ends are connected with front fork sleeve 5, and the rear portion of brace 1 connects wheel stand 6, and an end of pipe link 4 is connected with front fork sleeve 5, and the other end is connected with the top of brace 1.The correspondence of described each member is connected to fixed type, and vehicle frame plays the skeleton and the supporting role of car load.

The purpose of this utility model provides a kind of cycle frame with antitheft effect.

The technical solution of the utility model is to improve on the basis of existing technology, referring to Fig. 2 and Fig. 3.Be provided with permanent seat 7, permanent seat 8, intermediate bar 9, trochanter 10, pipe link 11,, lock joint 12.Described permanent seat 7 is connected in the top of brace 1, and permanent seat 8 is connected on the front fork sleeve 5, and the jacket casing 13 of connection is arranged on the permanent seat 8, and this connecting cylinder has put axial gap 15 on tightening screw 14, the barrel; One end of intermediate bar 9 is connected by bearing pin 16 with permanent seat 7, this intermediate bar can be around bearing pin 16 rotations, the other end of intermediate bar 9 is connected with an end of trochanter 10, trochanter 10 can rotate along its axis with respect to intermediate bar 9, and the other end of trochanter 10 is connected by bearing pin 17 with an end of pipe link 11, and this pipe link can be around bearing pin 17 rotations, the other end of pipe link 11 is connected by bearing pin 18 with an end of lock joint 12, this lock joint can be around bearing pin 18 rotations, and the other end of lock joint 12 has tapered end 19, and lockhole is arranged on the tapered end.Described lock joint 12, pipe link 11 and trochanter 10 can be with intermediate bar 9 around bearing pin 16 rotations, and lock joint 12, pipe link 11 can rotate with respect to intermediate bar 9 with trochanter 10.Tapered end 19 on the described lock joint 12 can enter this jacket casing by the axial gap 15 that connects on jacket casing 13 barrels, and be connected with permanent seat 8 or withdraw from this jacket casing by axial gap 15 and satisfy 12 rotations of lock joint by the tightening screw on it 14, lock joint 12 can pass wheel by vehicle frame one side after rotation, the tapered end 19 on it can cooperate with the lock 20 on being fixed on wheel stand 6.When the tapered end 19 on the lock joint is positioned at when connecting jacket casing 13 and being connected with permanent seat 8, as Fig. 2, shown in Figure 3, vehicle frame place car load serviceable condition; After lock joint tapered end 19 withdraws from and connects jacket casing 13, lock joint, pipe link etc. are at first with about 90 degree of the horizontal rotation of intermediate bar, rotation pipe link 11 and rotate certain position again by trochanter, last rotation lock joint, the lock joint just can pass wheel 24, tapered end on the lock joint is pinned by lock 20, and the lock joint promptly plays locked wheel, referring to Figure 10, Figure 11.Described brace 2 by under save 21 and last joint 22 constitute, following joint is connected by bearing pin 23 with last joint, when lock joint tapered end is not connected with permanent seat 8, following joint, upward saves with respect to bearing pin 23 and can produce the rotation that makes progress.

Technique effect of the present utility model is, after lock joint, pipe link, trochanter, intermediate bar and permanent seat 7 connect successively, when lock joint tapered end is connected with permanent seat 8 and is fastening, can stop going up joint, saving generation down and swing of brace 2, and vehicle frame satisfies operating needs; Because the intermediate bar after connecting successively, trochanter, pipe link and lock joint can satisfy corresponding rotation, when lock joint tapered end is not connected with permanent seat 8, lock joint tapered end green phase is answered and can be passed wheel after the rotation and cooperate with lock, pin wheel by the lock joint, especially the following joint of Ci Shi brace 2, last joint can produce upwards rotation with respect to bearing pin 23, make brace 2 be in flexible state, have both made the picking-up trailing wheel, car load also inconvenience is pushing away and is walking, and has improved theftproof performance and effect.And, the following joint of brace 2, go up joint and can make vehicle frame contractions of turning back around the bearing pin rotation that makes progress, when can corresponding minimizing parking take up space.

Below in conjunction with embodiment structure of the present utility model is described further.

Fig. 1 is the constructional drawing of existing cycle frame.

Fig. 2 to Figure 11 is the constructional drawing of embodiment, Fig. 2 is a front view, Fig. 3 is the enlarged drawing of Fig. 2 topside, and Fig. 4 is the A-A section drawing of Fig. 3, and Fig. 5 is the B-B section drawing of Fig. 3, Fig. 6 is the C-C section drawing of Fig. 3, Fig. 7 is the D-D section drawing of Fig. 3, and Fig. 8 is the I bilge construction enlarged drawing of Fig. 2, and Fig. 9 is that the E of Fig. 8 is to view, Figure 10 passes wheel 24 after the 12 corresponding rotations of lock joint to make car be in the front view of lock attitude, and Figure 11 is the F-F view of Figure 10.

Figure 12 is the structural front view of embodiment 2.

Embodiment 1.Intermediate bar 9 is connected by vertical bearing pin 16 with permanent seat 7, sees Fig. 3, makes the intermediate bar can horizontal rotation around bearing pin; Intermediate bar 9 and trochanter 10 satisfies trochanter can relatively rotate for axle, the cellular type along axis is connected, and its adapter shaft 25 axle heads are established snap ring 26; Trochanter 10 is connected by horizontal bearing pin 17 with pipe link 11, and the rod end bottom of pipe link 11 is an arc section 27, makes pipe link (position shown in Figure 3) rotation downwards; Pipe link 11 and lock joint 12 are connected by horizontal bearing pin 18, and the coupling end bottom on the lock joint 12 is an arc section 28, makes lock save (position shown in Figure 3) rotation downwards; Pipe link 11 and lock joint 12 can only can improve the rigidity of junction to a direction rotation.Establish overcoat 29 on the connection jacket casing 13 of permanent seat 8, see Fig. 7, overcoat 29 can rotate with respect to connecting jacket casing 13, jacket wall is provided with the screw that cooperates with tightening screw 14 and can puts the breach 30 that axial gap 15 overlaps with connecting cylinder, rotating jacket, two breach overlap, and are convenient to lock joint tapered end and enter or withdraw from; Tapered end enters the connecting cylinder cover and connects the back rotating jacket, and the dislocation of two breach can prevent effectively that tapered end from skidding off, and improves reliability of service; The barrel that connects jacket casing 13 is provided with and can satisfies tightening screw 14 with the radially notch 31 that overcoat 29 rotations are shifted, and when rotating jacket 29, at first should correspondingly withdraw from tightening screw.The following joint 21 of brace 2 is respectively arc section 32, arc section 33 with the top of last joint 22 coupling ends, makes down joint, last joint see Fig. 8 around bearing pin 23 upwards rotations.The lock joint 12 that Figure 10, Figure 11 have provided present embodiment passes wheel 24 after with the respective members rotation makes car load be in the state of lock attitude.The lower beam of wheel stand 6 connects supporting leg 34.

Embodiment 2, see Figure 12.In this example, described permanent seat 7 is connected brace 1 bottom, with aforementioned content ratio, only is the connecting portion difference of permanent seat 7, and technique effect and other structures are all with aforementioned.This routine vehicle frame is applicable to lady's bicycle.

Claims

1. guarding against theft type cycle frame, brace (1) is connected with pedal axle sleeve (3) with brace (2) lower end, the rear portion of brace (1) connects wheel stand (6), the upper end of brace (2) is connected with front fork sleeve (5), it is characterized in that being provided with permanent seat (7), permanent seat (8), intermediate bar (9), trochanter (10), pipe link (11), lock joint (12), permanent seat (7) is connected the top of brace (1), permanent seat (8) is connected on the front fork sleeve (5), connection jacket casing (13) is arranged on the permanent seat (8), this connecting cylinder has put tightening screw (14), axial gap (15) is arranged on the barrel, one end of intermediate bar (9) is connected by bearing pin (16) with permanent seat (7), and can be around bearing pin (16) rotation, the other end of intermediate bar (9) is connected with an end of trochanter (10), trochanter (10) can rotate along its axis with respect to intermediate bar (9), the other end of trochanter (10) is connected by bearing pin (17) with an end of pipe link (11), this pipe link can be around bearing pin (17) rotation, the other end of pipe link (11) is connected by bearing pin (18) with an end of lock joint (12), lock joint (12) can be around bearing pin (18) rotation, the other end of lock joint (12) has tapered end (19), lockhole is arranged on the tapered end, described lock joint (12), pipe link (11) and trochanter (10) can be with intermediate bar (9) around bearing pin (16) rotations, lock joint (12), pipe link (11) can rotate with respect to intermediate bar (9) with trochanter (10), tapered end (19) on the described lock joint (12) can enter this jacket casing by the axial gap (15) that connects on jacket casing (13) barrel, be connected with permanent seat (8) by the tightening screw on it (14), perhaps withdraw from this jacket casing and satisfy (12) rotation of lock joint by axial gap (15), lock joint (12) can pass wheel by vehicle frame one side after rotation, tapered end on it (19) can cooperate with the lock (20) on being fixed on wheel stand (6), described brace (2) is by joint (21) and last joint (22) constitute down, following joint is connected by bearing pin (23) with last joint, following joint, last joint can produce upwards rotation with respect to bearing pin (23).

2. according to the described guarding against theft type cycle frame of claim 1, it is characterized in that described intermediate bar (9) is vertical bearing pin with the bearing pin (16) that is connected of permanent seat (7), intermediate bar (9) and trochanter (10) be connected to axle along axis, the hole connects, the axle head of its adapter shaft (25) is provided with snap ring (26), trochanter (10) is horizontal bearing pin with the bearing pin (17) that is connected of pipe link (11), the rod end bottom of pipe link (11) is an arc section 27, pipe link (11) is horizontal bearing pin with the bearing pin (18) that is connected of lock joint (12), the coupling end bottom of lock joint (12) is arc section (28), on the connection jacket casing (13) of described permanent seat (8) overcoat (29) is arranged, this overcoat can rotate with respect to connecting jacket casing (13), the screw that matches with tightening screw is arranged on the jacket wall and can put the breach (30) that axial gap (15) overlaps with connecting cylinder, the barrel that connects jacket casing (13) is provided with and can satisfies the radially notch (31) that is shifted when tightening screw (14) rotates with overcoat (29), and the following joint (21) of described brace (2) is respectively arc section (32) with the top of last joint (22) coupling end, arc section (33).

3. according to claim 1 or 2 described guarding against theft type cycle frames, it is characterized in that described permanent seat (7) is connected the bottom of described brace (1).