CN208842561U - Bicycle fast dismounting apparatus - Google Patents

Abstract

The utility model discloses a kind of bicycle fast dismounting apparatus, comprising: shaft, one end have shaft outer ring tooth；Clutch seat has clutch seat inner circular tooth；Tommy bar has perforation；Connecting shaft, it is made into integration, with head, spiro union portion and the body portion being connected between head and spiro union portion, terrace is formed between body portion and the end face of spiro union portion adjoining, terrace is at right angles connect with spiro union portion, and perpendicular to the axle center of connecting shaft, the perforation of connecting shaft drawing-in tommy bar and the intercommunicating pore of clutch seat, it is spirally connected by spiro union portion and shaft；Spring is connected between clutch seat and shaft；When tommy bar is pulled to urgent position, pushes clutch seat to be located at binding site, connect clutch seat inner circular tooth with shaft outer ring tooth engagement；When tommy bar is pulled to release position, clutch seat is elapsed by spring and is moved to disengaging configuration, is detached from clutch seat inner circular tooth and shaft outer ring tooth.To reach, number of components is few, reduce manufacturing cost, reduces the effect of assembling degree of difficulty, promoting the market competitiveness, reduce damage and increase service life.

Description

Bicycle fast dismounting apparatus

Technical field

The utility model relates to the part of bicycle is related, in more detail refer to a kind of bicycle fast dismounting apparatus.

Background technique

It presses, bicycle fast dismounting apparatus, mainly rapidly to be combined and be separated wheel with the fork body of vehicle frame.

Only, bicycle fast dismounting apparatus is mainly generally divided into two kinds, two ends of one kind exist according to the difference of combination between fork body It pitches external side and carries out urgent combination, another then one end is spirally connected with body is pitched, and the other end is then with urgent combination, this two kinds respectively have it Advantage and applicable car type.Wherein, the bicycle fast dismounting apparatus being spirally connected with fork body, is more useful in and needs stepping on for very big anti-impact force It is used on roller coaster or descending vehicle.

However, to make the shaft of bicycle fast dismounting apparatus after locking with fork body, it still can be in the case where not influencing tightness The adjustment for carrying out tommy bar position, then need to be arranged a clutch component between shaft and tommy bar.But the related clutch group of known device for quickly disassembling The part of part is excessive and complicated, and not only manufacturing cost is higher, and assembling is more troublesome, can also make price with it is surging, and then lose The competitiveness in market, also also it is easily damaged, cause service life to be reduced.

Utility model content

In view of this, to improve in prior art, the part of known bicycle fast dismounting apparatus is excessive and complicated, manufacturing cost The problems such as higher, assembling is more troublesome, price height, does not have the market competitiveness, being easily damaged and service life is reduced.

Therefore, this creation provides a kind of bicycle fast dismounting apparatus, includes: a shaft, and the outer peripheral surface of one end has an axis Bar external screw thread, the outer peripheral surface of the other end has a shaft outer ring tooth annular in shape, axially extending in the same end of the shaft outer ring tooth There is a shaft internal screw thread；One clutch seat, with a pedestal, a clutch room from the pedestal one end toward sunken inside, one from the pedestal The other end is connected to the intercommunicating pore of the clutch room and packing room toward the packing room of sunken inside and one, is formed on the inner peripheral surface of the clutch room There is a clutch seat inner circular tooth annular in shape；One tommy bar, has an eccentric body of rod and a driving rod, which has a pivot joint Hole, the driving rod are placed in the pivoted hole, and have a perforation；One connecting shaft, is made into integration, have a head, a spiro union portion and One is connected to the body portion between the head and the spiro union portion, has a connecting shaft external screw thread on the outer peripheral surface of the spiro union portion, the head Outer diameter is greater than the outer diameter in the body portion, and the outer diameter in the body portion is then greater than the outer diameter of the spiro union portion, the body portion and spiro union portion adjoining A terrace is formed between end face, which at right angles connect with the spiro union portion, and perpendicular to the axle center of the connecting shaft, the connecting shaft drawing-in The perforation of the tommy bar, and be connected on the driving rod with the head, and the body portion then passes through the intercommunicating pore of the clutch seat, by this Connecting shaft external screw thread and the shaft internal screw thread of the shaft are spirally connected；One clamp holder is placed in the packing room of the clutch seat, has a perforation It is passed through for the body portion of the connecting shaft；One spring is placed in the clutch room of the clutch seat, and is placed on outside the connecting shaft, is supported with one end It is connected in the clutch seat, the other end is then connected on the end face of the shaft；When the tommy bar is pulled to a urgent position, pushing should Clutch seat is located at a binding site, connect the clutch seat inner circular tooth with the shaft outer ring tooth engagement；When the tommy bar is pulled to one When release position, which is elapsed by the spring and is moved to a disengaging configuration, makes the clutch seat inner circular tooth and the shaft Outer ring tooth is detached from.

It uses and reaches few number of components, reduction manufacturing cost, reduce assembling degree of difficulty, promote the market competitiveness, reducing and damage And increase service life and other effects.

Detailed description of the invention

Fig. 1 is the stereogram exploded view of one preferred embodiment of this creation.

Fig. 2 is the three-dimensional combination figure of embodiment illustrated in fig. 1.

Fig. 3 is the assembled sectional view of embodiment illustrated in fig. 1.

Fig. 4 to 6 is the operation chart of embodiment illustrated in fig. 1.

Wherein: bicycle fast dismounting apparatus, 100, shaft, 10, shaft external screw thread, 11 shaft outer ring teeth, 12, spiral shell in shaft Line, 13, clutch seat, 20, pedestal, 21, clutch room, 22, clutch seat inner circular tooth, 221, packing room, 23, intercommunicating pore, 24, tommy bar, 30, the eccentric body of rod, 31, eccentric part, 311, pulling part, 312, pivoted hole, 313, driving rod, 32, perforation, 321, connecting shaft, 40, head Portion, 41, spiro union portion, 42, connecting shaft external screw thread, 421, body portion, 43, terrace, 431, clamp holder, 50, perforation, 51, spring, 60, again Bar, 91, screw hole, 911, fork arm, 92.

Specific embodiment

For that can have further understanding and approval to the feature of this creation and its feature, following preferable implementation is hereby enumerated Example simultaneously cooperates Detailed description of the invention as follows:

It please refers to shown in Fig. 1 to 6, a kind of bicycle fast dismounting apparatus 100 provided by one preferred embodiment of this creation, wraps Include a shaft 10, a clutch seat 20, a tommy bar 30, a connecting shaft 40, a clamp holder 50 and a spring 60, in which:

It please refers to shown in Fig. 1 to 3, the shaft 10, the outer peripheral surface of one end has a shaft external screw thread 11, the periphery of the other end Face then has a shaft outer ring tooth 12 annular in shape, and has a shaft internal screw thread in the same end of the shaft outer ring tooth 12 is axially extending 13。

Shown in please referring to Fig.1 to Fig.3, which has a pedestal 21, one from 21 one end of pedestal toward sunken inside Clutch room 22, one is connected to the company of the clutch room 22 and packing room 23 from 21 other end of pedestal toward the packing room 23 of sunken inside and one Through-hole 24 is formed with a clutch seat inner circular tooth 221 annular in shape on the inner peripheral surface of the clutch room 22.

It please refers to shown in Fig. 1 to 3, the tommy bar 30, there is an eccentric body of rod 31 and a driving rod 32.The bias body of rod 31 tool There is the pulling part 312 of an eccentric part 311 and one and 311 integrally connected of eccentric part, which has one to run through two sides Pivoted hole 313；The driving rod 32 with can original place be rotatably arranged in the pivoted hole 313, the driving rod 32 simultaneously have one perforation 321。

It please refers to shown in Fig. 1 to 3, which is made into integration, and there is a head 41, a spiro union portion 42 and one to be connected to Body portion 43 between the head 41 and the spiro union portion 42.There is a connecting shaft external screw thread 421, the head on the outer peripheral surface of the spiro union portion 42 41 outer diameter is greater than the outer diameter in the body portion 43, and the outer diameter in the body portion 43 is then greater than the outer diameter of the spiro union portion 42, make the body portion 43 with The spiro union portion 42 is formed with a terrace 431 between adjacent end face, and the terrace 431 is perpendicular to the axle center of the connecting shaft 40, the i.e. rank It is at right angles connected between face 431 and the spiro union portion 42.The perforation 321 of 40 drawing-in of the connecting shaft tommy bar 30, and with the head 41 abutting In on the driving rod 32, and the body portion 43 then passes through the intercommunicating pore 24 of the clutch seat 20, by spiral shell outside the connecting shaft of the spiro union portion 42 Line 421 and the shaft internal screw thread 13 of the shaft 10 are spirally connected.

It please refers to shown in Fig. 1 to 3, the clamp holder 50, tool elasticity is placed in the packing room 23 of the clutch seat 20, has one Perforation 51 is passed through for the body portion 43 of the connecting shaft 40.

It please refers to shown in Fig. 1 to 3, which is placed in the clutch room 22 of the clutch seat 20, and is placed on the connecting shaft 40 Outside, it is connected on 22 bottom wall of clutch room of the clutch seat 20 with one end, the other end is then connected on the end face of the shaft 10.

Therefore above-mentioned is each portion's component of a kind of bicycle fast dismounting apparatus 100 provided by one preferred embodiment of this creation And its introduction of assembling mode, then its handling characteristics is described as follows again:

When being intended to using this creation, first by 10 drawing-in of shaft in two fork arms 91,92 of the fork body of a bicycle, such as Shown in Fig. 4, and it is spirally connected by the shaft external screw thread 11 of the shaft 10 and the screw hole 911 of one fork arm 91, and the tommy bar 30 is pulled Make the clutch seat 20 at this time to a urgent position to push the clamp holder 50 to be closely against in the clutch seat 20 by the eccentric part 311 At a binding site, i.e., when the 20 position binding site of clutch seat, 221 system of clutch seat inner circular tooth and the shaft 10 The engagement connection of shaft outer ring tooth 12, can be rotated at this time in the case where tommy bar 30 is located at urgent position with the clutch seat 20 is urgent In on another fork arm 92.

After the clutch seat 20 and fork arm 92 are urgent, if the position of the tommy bar 30 is downward or forward at this time (i.e. non-upward) When direction, and when need to adjust, as shown in figure 5, can then pull the loose tommy bar 30 in advance, i.e., the tommy bar 30 is pulled to one and loosen position It sets, oppresses the eccentric part 311 of the tommy bar 30 no longer on the clamp holder 50, the clutch seat 20 will be by the spring 60 at this time Elastic force is elapsed, and is moved to a disengaging configuration in binding site, and makes the clutch seat inner circular tooth 221 and the axis of the clutch seat 20 The shaft outer ring tooth 12 of bar 10 is detached from.

Then it, then by the tommy bar 30 rotates to correct position, i.e., upward (as shown in Figure 6), then again by the tommy bar 30 Be wrenched to urgent position, make at this time the tommy bar 30 it is again urgent on fork arm 92 to the clutch seat 20 force again, and make this from It closes seat inner circular tooth 221 and engages connection again with shaft outer ring tooth 12.

Whereby, when user rides bicycle, upward due to the tommy bar 30, hitting for ground foreign matter is not just will receive It hits, the situation for not having release naturally occurs, to promote safety when using.

Therefore can be reduced manufacturing cost since the number of components of this creation is less, and the difficulty of assembling is reduced, to be promoted The competitiveness in market.Moreover since the terrace of the connecting shaft is the vertical plane at right angles connected, it is disconnected that generation can be efficiently reduced The situation split, and then reach the effect of reduction damages and increases service life.

Preferred embodiment provided by the above, only this creation, not to limit the implementation model of this creation It encloses, all relevant arts in the art should all belong to the model that this creation is covered according to the equivalent change carried out by this creation It encloses.

Claims (3)

1. a kind of bicycle fast dismounting apparatus characterized by comprising

One shaft, the outer peripheral surface of one end have a shaft external screw thread, and the outer peripheral surface of the other end has a shaft outer ring annular in shape Tooth has a shaft internal screw thread in the same end of shaft outer ring tooth is axially extending；

One clutch seat, with a pedestal, a clutch room from pedestal one end toward sunken inside, one from the pedestal other end toward sunken inside Packing room and one be connected to the clutch room and packing room intercommunicating pore, be formed with a clutch seat annular in shape on the inner peripheral surface of clutch room Inner circular tooth；

There is one tommy bar an eccentric body of rod and a driving rod, the eccentric body of rod to have a pivoted hole, and driving rod is placed in pivoted hole, And there is a perforation；

One connecting shaft, is made into integration, and is connected to the body portion between head and spiro union portion, spiro union portion with a head, a spiro union portion and one Outer peripheral surface on there is a connecting shaft external screw thread, the outer diameter on head is greater than the outer diameter in body portion, and the outer diameter in body portion is then greater than spiro union portion Outer diameter, body portion and spiro union portion are formed with a terrace between adjacent end face, and terrace is at right angles connect with spiro union portion, and perpendicular to connecting shaft Axle center, the perforation of connecting shaft drawing-in tommy bar, and being connected on driving rod with head, and body portion then passes through the intercommunicating pore of clutch seat, To be spirally connected by connecting shaft external screw thread and the shaft internal screw thread of the shaft；

One clamp holder is placed in the packing room of clutch seat, and the body portion with a perforation for the connecting shaft passes through；

Outside the connecting shaft that one spring is placed in the clutch room of clutch seat, and is placed on, it is connected in clutch seat with one end, it is another End is then connected on the end face of shaft；

When tommy bar is pulled to a urgent position, clutch seat is pushed to be located at a binding site, make clutch seat inner circular tooth with outside shaft The connection of ring tooth engagement；When tommy bar is pulled to a release position, clutch seat is elapsed by spring and is moved to a disengaging configuration, is made Clutch seat inner circular tooth and shaft outer ring tooth are detached from.

2. bicycle fast dismounting apparatus as described in claim 1, which is characterized in that the eccentric body of rod of tommy bar have an eccentric part and One runs through the two sides of eccentric part with the pulling part of eccentric part integrally connected, pivoted hole, driving rod can original place be rotatably arranged in pivot It connects in hole.

3. bicycle fast dismounting apparatus as described in claim 1, which is characterized in that clamp holder has elasticity.