CN202371056U

CN202371056U - Control unit of bi-directional drive wheel disc

Info

Publication number: CN202371056U
Application number: CN2011205574409U
Authority: CN
Inventors: 马晓刚; 马玉红
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-12-28
Filing date: 2011-12-28
Publication date: 2012-08-08
Anticipated expiration: 2021-12-28

Abstract

The utility model relates to a control unit of a bi-directional drive wheel disc, which comprises an inner core provided with a wedge-shaped groove, a sliding block, an outer disc shell and a tension spring, wherein the inner core is arranged in the outer disc shell, the sliding block is arranged in the wedge-shaped groove of the inner cover, and the sliding block is connected with the inner core through the extension spring. The control unit can be matched with the bi-directional drive wheel disc on a bi-directional drive bicycle, and has the advantages that the control unit can be automatically matched with the forward and backward drive of the bi-directional drive wheel disc and has no noise, the problem in backward running of the bi-directional drive bicycle is solved, and the practicability of the bi-directional drive bicycle is improved.

Description

The bi-directional driving rotary table controlling component

Technical field

The utility model relates to a kind of bi-directional driving rotary table controlling component; Can be used on the bi-directional drive bicycle and be used with bi-directional driving rotary table; Its advantage is that it can be from the positive and negative driving of bi-directional driving rotary table movingly; Noise free, and solved the problem of bi-directional drive bicycle backward, improve the practicability of bi-directional drive bicycle.

Background technique

Existing bi-directional drive bicycle generally matches with bi-directional driving rotary table through a plug piece; The plug piece contacts in bi-directional driving rotary table all the time; Make when driving forwards the noise that produces whip; And plug piece and bi-directional driving rotary table are stuck when the bicycle backward, force wheel to rotate.The patent No. is that 200620118846.6 Chinese patent has been announced the two-way bicycle freewheel plug of a kind of manually operated type; It is characterized in that the plug piece on the support links to each other with the plug handle through drive line; Logical plug handle is controlled whether contacting of plug piece and bi-directional driving rotary table; Though this manual plug has solved the problem of noise and two-way bicycle backward, when the bi-directional drive bicycle needs backward or abates the noise, all must remove to stir handle, when the needs reverse direction actuation again again handle push original position; This operation is more loaded down with trivial details, and manufacture cost is higher.

Summary of the invention

The objective of the invention is: for solving the problem that the noise that produces when the bi-directional drive bicycle drives forwards and bi-directional drive bicycle can not backwards; Provide a kind of simple in structure; Easy to make, can be from the positive and negative driving of bi-directional driving rotary table movingly, noise free; Bi-directional drive bicycle ability backward, the bi-directional driving rotary table controlling component of raising bi-directional drive bicycle practicability.

For realizing above-mentioned purpose, the technological scheme that the present invention takes is:

A kind of bi-directional driving rotary table controlling component; Comprise the inner core (1) that offers wedge slot (6), slide block (2), coil shell (3), extension spring (4) outward; Described inner core (1) is placed in the outer dish shell (3); Described slide block (2) is placed in the wedge slot (6) of inner core (1), and slide block (2) also is connected with inner core (1) through extension spring (4).

Can be provided with screw (5) on the said inner core (1).

Said inner core (1) can be made up of single or a plurality of interior pellets (12).

The utility model is through offering wedge-shaped indentation on inner core; Thereby between shell and inner core, form radial clearance from an end to another disconnected gradually big wedge slot; Extension spring in the wedge slot pulls to one end in the big gap of wedge slot to slide block, and in use, inner core and bi-directional driving rotary table install and fix together; Shell is enclosed within on the bicycle middle shaft and with bicycle frame and is fixed together; Its advantage is that the rotation through bi-directional driving rotary table drives inner core and slide block movement and then reaches from bi-directional driving rotary table movingly and realizes the bi-directional drive function of bicycle, and noise free, bi-directional drive bicycle ability backward; Improve the practicability of bi-directional drive bicycle, this invention can also be applied on other machines that positive and negative bi-directional driving rotary table is installed.

Description of drawings:

Fig. 1 is the structural representation of bi-directional driving rotary table controlling component;

Fig. 2 is that the bi-directional driving rotary table controlling component is installed on the structural representation on the bicycle;

Fig. 3 is the structural representation of bi-directional driving rotary table controlling component inner core when being made up of two interior pellets;

Wherein: 1, inner core, 2, slide block, 3, coil shell outward, 4, extension spring, 5, screw, 6, the wedge groove, 7, bi-directional driving rotary table, 8, crank, 9, screw, 10, vehicle frame, 11, axis, 12, interior pellet.

Embodiment:

Like Fig. 1, shown in 2; Slide block 2 is placed in the wedge slot 6 of inner core 1; Slide block 2 also links to each other through wedge slot 6 big gap ends on extension spring 4 and the inner core 1, and inner core 1 is fixed together through screw 9 and bi-directional driving rotary table 7, coils shell 3 outward and is enclosed within on the axis 11 and with vehicle frame 10 and is fixed together.

Working principle: when forward (clockwise) treadled cycle; Crank 8 forwards (clockwise) rotate; Bi-directional driving rotary table 7 drives inner cores 1 and rotates in the same way with crank 8, relies on extension spring 4 one ends at the acting in conjunction bottom slide block 2 of inertial force and tension spring tension, just the big end in wedge slot 6 gaps; This moment, slide block 2 was separated with outer dish shell 3, and this moment, bicycle was normally advanced forward; When retrodicting bicycle; Because the diameter of wheel is much larger than the diameter of bi-directional driving rotary table 7; Bi-directional driving rotary table 7 reverse (counterclockwise) under the drive of chain slowly rotates, the centripetal force that the pulling force of the extension spring 4 that slide block 2 receives this moment receives greater than it, and slide block 2 still remains on the big end in wedge slot 6 gaps; The state that is separated of slide block 2 and outer dish shell 3 just, the normal backward of bicycle this moment; When reverse (counterclockwise) treadled cycle; Crank 8 snap backs (counterclockwise) rotate, the pulling force of the extension spring 4 that the centripetal force that this moment, slide block 2 received receives greater than it, and slide block 2 is shifted to the little end in wedge slot 6 gaps; Slide block 2 rubs mutually with outer dish shell 3 inwalls and wedge slot 6 surfaces respectively and produces very big frictional force; Under function of friction, inner core 1 is static with respect to vehicle frame 10, also advances forward when bicycle is oppositely trampled.

Working principle when bi-directional driving rotary table controlling component inner core 1 is made up of two interior pellets 12 as shown in Figure 3 is identical.

Because this novel sliding friction structure that adopted, so all can not produce noise when no matter forward still is reverse treadled cycle.

Inner core 1 in the utility model can be provided with a plurality of wedge slots 6 and a plurality of slide blocks 2; Slide block 2 also can be made shapes such as cylinder or ball; Inner core 1 also can be made up of single or a plurality of interior pellets 12, and inner core 1 also can be made of one structure with the parts of bi-directional driving rotary table 7, satisfies different needs.

Claims

1. bi-directional driving rotary table controlling component; Comprise the inner core (1) that offers wedge slot (6), slide block (2), coil shell (3), extension spring (4) outward; Described inner core (1) is placed in the outer dish shell (3); Described slide block (2) is placed in the wedge slot (6) of inner core (1), and slide block (2) also is connected with inner core (1) through extension spring (4).

2. bi-directional driving rotary table controlling component according to claim 1 is characterized in that can being provided with screw (5) on the said inner core (1).

3. bi-directional driving rotary table controlling component according to claim 1 is characterized in that said inner core (1) can be made up of single or a plurality of interior pellets (12).