CN2764696Y - Expansion brake and lock assembly for electric vehicle - Google Patents

Abstract

The utility model discloses an expansion brake and lock assembly for electric vehicles, which formed by the assembly of a lock body, a lock core, a lock ring, a fixing bracket, a center positioning block, a cam, a lock post, a reset spring, balls, an eccentric wheel, a connecting rod, a brake shoe block, an eccentric block and an eccentric block, etc. In the expansion brake and lock assembly, the main components of a lock are wrapped in a casing composed of the lock body and the lock ring, which is not easy to damage and can improve the safety. Additionally, the brake purpose can be achieved by friction between the lock ring and a brake sheet on the brake shoe block. The utility model has no adverse effect on parts of the electric vehicles, and is not easy to generate noise because of expansion brake.

Description

Electric vehicle expansion lock and lock assembly

Technical field

The utility model belongs to lockset, relates in particular to a kind of rise lock and lock assembly that is used for Electrical Bicycle.

Background technology

Electrical Bicycle is because easy to use, energy-conserving and environment-protective and become the current first-selected instrument of town and country short distance, and the yearly output in the whole nation is more than ten million at present.But its used lockset is to dispose on the basis of original bicycle lock, and is relatively simple for structure relatively, generally adopts lock cylinder, single cog Key structure, size of key is low, and lockset very easily destroyed, in addition, Electrical Bicycle generally adopts the band-type brake brake, and noise is bigger.

Summary of the invention

The purpose of this utility model provides a kind of safe, rise lock and the lock assembly that are used for Electrical Bicycle that braking quality is good.

For achieving the above object, the utility model adopts following technical scheme: a kind of electric vehicle expansion lock and lock assembly, comprise lock body and lock core, fixed mount is installed on lock body, columniform centralized positioning piece is housed between fixed mount and lock body, and centralized positioning piece middle part has round boss, cam to be sleeved on the boss, have radial groove on the centralized positioning piece, lock places in the chute, and position-limited trough is arranged on the cam, and blind hole is vertically arranged on the lock, retracing spring and ball are housed in the blind hole, also have grooving vertically on the lock, cam penetrates in the grooving, and ball and cam outer rim are joined, also have a locating dowel pin on the lock, pass the position-limited trough of locating dowel pin from cam; Lock core and eccentric wheel are connected, and eccentric wheel and connecting rod one end are hinged, and the connecting rod other end and cam are hinged;

Mounting hole is arranged on the fixed mount, and two shoe pieces are connected with fixed mount by the pin that passes mounting hole, also have extension spring to link to each other between two shoe pieces, and eccentric block also is housed on fixed mount, and eccentric block joins with two shoe pieces simultaneously;

It also comprises lock ring, and the lockhole that can supply lock to pass is arranged on the lock ring;

On lock body, centralized positioning piece, cam, fixed mount and the lock ring coaxial centre hole is arranged all, the centralized positioning sleeve pipe is housed in the centre hole of centralized positioning piece, centralized positioning sleeve pipe and centralized positioning piece flush fit.

Mounting hole on the fixed mount is elongated.

Described lock is no less than two.

This lock and the lock assembly of rising, the major part of its lockset is covered by in the shell that is made of lock body and lock ring, be difficult for destroyed, improved safety, utilize friction between the brake facing on lock ring and the shoe piece to reach the purpose of brake besides, parts to vehicle self have no adverse effects, and owing to be the lock brake of rising, are difficult for producing noise.

Description of drawings

Fig. 1 looks scheme drawing for master of the present utility model.

The master that Fig. 2 takes away lock ring for the utility model looks scheme drawing.

Fig. 3 be the A-A of Fig. 1 to view, omitted shoe piece among the figure.

Fig. 4 looks scheme drawing for the master of centralized positioning piece.

Fig. 5 is that the B-B of Fig. 4 is to view.

Fig. 6 looks scheme drawing for the master of cam.

Fig. 7 looks scheme drawing for the master of lock.

Fig. 8 is that the C-C of Fig. 7 is to view.

Fig. 9 is the left view of Fig. 7.

Figure 10 looks scheme drawing for the master of fixed mount.

Figure 11 is that the D-D of Figure 10 is to view.

Figure 12 is that the master of eccentric block looks scheme drawing.

Figure 13 is the left view of Figure 12.

Figure 14 is the assembling scheme drawing of eccentric block.

The specific embodiment

As Fig. 1, Fig. 2, shown in Figure 3, this electric vehicle expansion lock and lock assembly comprise lock body 1 and lock core 6, and fixed mount 12 is installed on lock body 1, and columniform centralized positioning piece 20 is arranged between fixed mount 12 and lock body 1, and the centralized positioning piece is packed on the fixed mount 12.As Fig. 4, shown in Figure 5, there is round boss at centralized positioning piece middle part, has radial groove 21 on the centralized positioning piece.Cam 3 is sleeved on the boss, and lock 7 places in the chute 21.The position-limited trough that involute is arranged on the cam 3 as shown in Figure 6.As Fig. 7, Fig. 8, shown in Figure 9, blind hole is vertically arranged on the lock, also has grooving vertically on the lock, also has a locating dowel pin 15 on the lock, as shown in Figure 3, retracing spring 17 and ball 16 are housed in the blind hole, cam 3 penetrates in the grooving, ball 16 joins with cam 3 outer rims, passes the position-limited trough of locating dowel pin 15 from cam; Lock core 6 is connected with eccentric wheel 5, and eccentric wheel 5 is hinged by bearing pin 14 and connecting rod 4 one ends, and connecting rod 4 other ends and cam 3 are hinged.

As Figure 10, shown in Figure 11, mounting hole 22 is arranged on the fixed mount 12, as shown in Figure 3, two shoe pieces 11 are connected with fixed mount 12 by the pin 19 that passes mounting hole 22, also have extension spring 18 to link to each other between two shoe pieces, eccentric block 10 also is housed on fixed mount 12, eccentric block 10 joins with two shoe pieces 11 simultaneously, as shown in figure 12, eccentric block 10 links to each other with lock rope 8 by lock rope attaching screw 9.

This lock and the lock assembly of rising also comprises lock ring 2, and the lockhole that can pass for lock 7 is arranged on the lock ring 2, and lock ring 2 joins with lock body 1.

On lock body 1, centralized positioning piece 20, cam 3, fixed mount 12 and the lock ring 2 coaxial centre hole is arranged all, centralized positioning sleeve pipe 13 is housed in the centre hole of centralized positioning piece, centralized positioning sleeve pipe 13 cooperates with centralized positioning piece tight 20, and an end and the lock body 1 of centralized positioning sleeve pipe 13 join.

Mounting hole 22 on the fixed mount 12 is elongated, and pin 19 can be done limited displacement in mounting hole 22.Its effect is to guarantee that two shoe pieces can be evenly stressed when brake.

Reliable for guaranteeing that lockset uses, the quantity of lock 7 should be no less than two, generally can be two or three.

Lock core can adopt magnetic energy coding lock core, to reduce the mutual opening rate of lockset as far as possible.And all available steel plate punch formings of parts such as lock ring, lock body, fixed mount, to strengthen the survivability of lockset.

Thisly rise by lock and lock assembly in use, lock ring 2 is contained on the trailing wheel motor end face of Electrical Bicycle, lock body 1 is contained on the after poppet of Electrical Bicycle, during the course, should measure motor location bearing and lock body centre hole inner distance, determine the length of centralized positioning sleeve pipe 13, to guarantee the relative position of lockhole on lock 7 and the lock ring, centralized positioning sleeve pipe 13 is sleeved on the motor shaft.In the Electrical Bicycle driving process, lock ring also turns round with trailing wheel.

When needs lock car, with key rotation lock core 6, lock core 6 drives eccentric wheel 5 and rotates around lock core, 4 motions of eccentric wheel 5 drivening rods, connecting rod 4 drives cam 3 and rotates, and the edge of cam 3 promotes ball 16 compression reseting springs 17, under the effect of retracing spring 17, lock 7 slides in chute 21, extend in the lockhole on the lock ring 2, reaches the purpose of lock car.

When needs were unblanked, counter-rotation lock core 6, eccentric wheel 5, connecting rod 4, cam 3 be reversing sense motion thereupon also, at this moment, the outer ledge of cam 3 upper limit position grooves promote pin 19 and and then drive lock 7 to central slide, lock 7 is deviate from from lockhole, reaches the purpose of unblanking.

When needs braked, the pulling brake handle drove lock rope 8, and lock rope 8 drives eccentric block 10 and rotates, and with two shoe piece 11 spreadings, the inwall of the brake facing at shoe piece edge and lock ring 2 produces friction, reaches the purpose of brake.Release handle, under the effect of extension spring 18, the shoe piece self-return.

Claims (3)

1, a kind of electric vehicle expansion lock and lock assembly, comprise lock body and lock core, it is characterized in that: fixed mount is installed on lock body, columniform centralized positioning piece is housed between fixed mount and lock body, there is round boss at centralized positioning piece middle part, cam is sleeved on the boss, has radial groove on the centralized positioning piece, and lock places in the chute, position-limited trough is arranged on the cam, blind hole is vertically arranged on the lock, retracing spring and ball are housed in the blind hole, also have grooving vertically on the lock, cam penetrates in the grooving, ball and cam outer rim are joined, and also have a locating dowel pin on the lock, pass the position-limited trough of locating dowel pin from cam; Lock core and eccentric wheel are connected, and eccentric wheel and connecting rod one end are hinged, and the connecting rod other end and cam are hinged;

Mounting hole is arranged on the fixed mount, and two shoe pieces are connected with fixed mount by the pin that passes mounting hole, also have extension spring to link to each other between two shoe pieces, and eccentric block also is housed on fixed mount, and eccentric block joins with two shoe pieces simultaneously;

It also comprises lock ring, and the lockhole that can supply lock to pass is arranged on the lock ring;

On lock body, centralized positioning piece, cam, fixed mount and the lock ring coaxial centre hole is arranged all, the centralized positioning sleeve pipe is housed in the centre hole of centralized positioning piece, centralized positioning sleeve pipe and centralized positioning piece flush fit.

2, electric vehicle expansion lock as claimed in claim 1 and lock assembly, it is characterized in that: the mounting hole on the fixed mount is elongated.

3, electric vehicle expansion lock as claimed in claim 1 and lock assembly is characterized in that: described lock is no less than two.

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