CN207673803U - A kind of bidirectional ratchet mechanism - Google Patents

Abstract

The utility model proposes a kind of bidirectional ratchet mechanisms, it includes ratchet, bottom plate, outer ring to specifically disclose it, it is characterized in that, in the arbitrary side of outer ring, detent mechanism is set, detent mechanism includes pawl and button, pawl constitutes click cooperation with ratchet, and the button press can have compact-sized, the easy to operate advantageous effect narrow suitable for vertical space with 180 ° of rotations of pawl.

Description

A kind of bidirectional ratchet mechanism

Technical field

The utility model is related to a kind of bidirectional ratchet mechanisms.

Background technology

In ratchet mechanism device application process, between in the same direction turn of ratchet is often realized in small space or is reversely turned Mutual conversion, the existing apparatus structure for realizing above-mentioned function is often complex and is not suitable for vertical narrow sky Between, to produce and using bringing inconvenience.

Utility model content

It is double that the purpose of this utility model is to provide a kind of compact-sized, easy to operate one kind narrow suitable for vertical space To ratchet mechanism.

The technical solution of the utility model is：A kind of bidirectional ratchet mechanism, including ratchet, bottom plate, outer ring, feature It is, detent mechanism is set in the arbitrary side of outer ring, detent mechanism includes pawl and button, and pawl constitutes ratchet with ratchet Click-fit, the button press can be with 180 ° of rotations of pawl.

The detent mechanism includes sleeve, is equipped with upper tooth post, the elastic component for ratchet pawl reset in the sleeve, in sleeve Wall is arranged with the guide groove being axially arranged and circumferentially disposed skewed slot, and locating part, the limit are arranged on the outside of upper tooth post Part constitutes sliding cooperation with guide groove；The pawl includes long axis and turntable, and sliding component, the cunning are arranged on the outside of turntable Part is moved with the second state for circumferentially sliding cooperation with the guide groove first state that axially sliding coordinates and with skewed slot；The button Lower end extends outwardly one section of protrusion.

The long axis upper end is cylinder, lower end is an inclined-plane, and long axis upper end and button are adapted, long axis lower end and spine Wheel constitutes click cooperation.

The elastic component is two, and one is mounted between pawl and sleeve；One is mounted between upper tooth post and button.

The sleeve includes the part of two semicolumns, and through hole realizes installation combination.

The pawl bottom is equipped with disk, and the disk can axially slide along sleeve lining, in the disk and the set Elastic component is set between cylinder.

The disk includes disk inner ring and disk outer ring, and disk inner ring and long axis are fixed, and disk outer ring is slidably.

It is circumferentially with upward inclined-plane on the upside of the turntable, is equipped on the downside of the upper tooth post compatible with turntable inclined-plane oblique Face.

The top of the sliding component is downward inclined-plane, and the bottom of the locating part and the inclined-plane of sliding component are adapted.

The utility model has the advantage that, using pawl as revolving body, pawl realizes spine around sleeve rotating 180 degree Pawl turns to, and by the cooperation of disk and spring on guide groove in upper tooth post, sleeve and groove, pawl, realization press by Pawl steering can be realized in button.

Description of the drawings

Fig. 1 is the utility model axonometric drawing.

Fig. 2 is the utility model Local map.

Fig. 3 is part A-A sectional views in the utility model Fig. 1.

Fig. 4 is the sleeve lining structural schematic diagram of the utility model.

Fig. 5 is the front view of the press-button structure of the utility model.

Fig. 6 is the front view of the pawl structures of the utility model.

Fig. 7 is the vertical view of the pawl structures of the utility model.

Fig. 8 is the vertical view of the disc structure of the utility model.

Fig. 9 is the front view of the gear structure of the utility model.

Figure 10 is the vertical view of the gear structure of the utility model.

Specific implementation mode

In order to keep the purpose of this utility model, technical solution and advantage of greater clarity, below by attached drawing and real Example is applied, the utility model is further described.

As shown in Figure 1 and Figure 2, a kind of bidirectional ratchet mechanism includes ratchet 1, bottom plate 2, outer ring 3, the arbitrary side in outer ring 3 Detent mechanism 4 is set, the bidirectional-movement of ratchet 1 is realized by detent mechanism 4.

As shown in figure 3, the detent mechanism 4 includes pawl 5, button 6 and sleeve 7, it is equipped with upper tooth post 8 in sleeve 7, is used for Pawl 5 reset elastic component 9, pawl 5 be mounted on sleeve 7 in, 5 upper end of pawl is sleeved in button 6, and with inside button 6 there are One section of gap is, it can be achieved that pawl 5 moves up and down.

Pawl 5 can be rotated around sleeve 7, and when the inclined-plane of the lower end of pawl 5 is engaged with ratchet 1, ratchet 1 can only be toward one Direction is rotated, when pawl 5 and ratchet 1 constitute the cooperation of 1 pawl 5 of ratchet, pressing button 6 can with 5 180 ° of rotations of pawl, Ratchet 1 can only reversely rotate at this time.

7 inner wall of sleeve as shown in Figure 4 is arranged with the guide groove 10 being axially arranged and circumferentially disposed skewed slot 11.

6 lower end of button as shown in Figure 5 extends outwardly one section of protrusion, and when which prevents using button 6, button 6 is detached from.

Pawl 5 as shown in Figure 6, Figure 7 includes long axis 13, turntable 14 and disk 16.The outside of turntable 14 is arranged with top Tilt down the sliding component 15 of simultaneously outwardly convex；13 upper end of long axis is cylinder, lower end is an inclined-plane, 13 upper end of long axis and is pressed Button 6 coordinates, and 13 lower end of long axis and ratchet 1 coordinate.

Disk 16 as shown in Figure 8 includes disk inner ring 17 and disk outer ring 18.Disk outer ring 18 can be axial sliding along sleeve 7 It moves, elastic component 9 is set between disk outer ring 18 and sleeve 7.

8 outside of upper tooth post is arranged with locating part 12 as shown in Figure 9, Figure 10, and the bottom of locating part 12 is down and out The inclined-plane of protrusion.And the bottom of the locating part 12 and the inclined-plane of sliding component 15 are adapted.14 upside of turntable is equipped with upwards oblique Face, 8 downside of the upper tooth post are equipped with inclined-plane compatible with 14 inclined-plane of turntable.

Locating part 12 constitutes sliding cooperation with guide groove 10, and when by lower button 6, button 6 moves downward, and works as button When 6 lower ends touch 8 upper end of tooth post, upper tooth post 8 moves down, since 6 upper end of button at a distance from 13 upper end of long axis and is pressed 6 lower end of button and 8 upper end of upper tooth post so button 6 touches the cylinder of 13 upper end of long axis of pawl 5 at this time, drive apart from identical Long axis 13 moves down.At this point, the sliding component 15 in 14 outside of turntable and the locating part 12 in 8 outside of upper tooth post move downwardly together, Guide groove 10 on disengaging 7 inner wall of sleeve of sliding component 15 in 14 outside of turntable, and turntable 14 is because elastic component 9 is given at this time The power up pushed up and up to move, at this time since the sliding component 15 in the outside of turntable 14 skids off leading on 7 inner wall of sleeve Mesh together to the locating part 12 of slot 10, but 8 outside of sliding component 15 and upper tooth post, but at this point, due to the limit on the outside of upper tooth post 8 Position part 12 is in the middle part of turntable 14, is inclined at this time, and under the action of the power of elastic component 9, sliding component 15 is wanted to reach most Short distance, then sliding component 15 can rotate to the shortest distance, upper tooth post 8 is since locating part 12 is also in guide groove 10, so by consolidating It is fixed, it cannot rotate, and turntable 14 then has rotated 180 ° of stoppings, pawl 5 receives the elastic force of elastic component 9 and moves upwards at this time.It drives Turntable 14 and upper tooth post 8 move upwards, and the sliding component 15 on 14 outside of turntable also enters guide groove 10, completes to rotate, under pawl 5 The inclined-plane at end is reversed, and ratchet 1 can be reversed rotation.

Installation procedure：Ratchet 1 is installed on a base plate 2, and outer ring 3 is installed on a base plate 2, after pawl 5 is assembled with disk 16 It puts into sleeve 7, upper tooth post 8 and button 6 is put into sleeve 7, then elastic component 9 is assembled, finally close sleeve 7, use Screw is fixed as an entirety, finally by the detent mechanism 4 assembled assembly on outer ring 3.

Use operation：Button 6 is pressed, pawl 5 rotates 180 °, and 5 inclined-plane of pawl turns to, and ratchet 1 can reversely rotate.

Claims (9)

1. a kind of bidirectional ratchet mechanism, including ratchet（1）, bottom plate（2）, outer ring（3）, which is characterized in that in outer ring（3）It is arbitrary Detent mechanism is arranged in side（4）, detent mechanism（4）Including pawl（5）And button（6）, pawl（5）With ratchet（1）Constitute spine Wheel（1）Pawl（5）Cooperation, the button（6）Pressing can be with pawl（5）180 ° of rotations.

2. bidirectional ratchet mechanism according to claim 1, it is characterised in that：The detent mechanism（4）Including sleeve（7）, The sleeve（7）It is interior to be equipped with upper tooth post（8）, for the elastic component of ratchet pawl reset（9）, sleeve（7）Inner wall is arranged with axial set The guide groove set（10）With circumferentially disposed skewed slot（11）, upper tooth post outside is arranged with locating part（12）, the locating part （12）With guide groove（10）Constitute sliding cooperation；The pawl（5）Including long axis（13）And turntable（14）, the outside of turntable is symmetrical Equipped with sliding component（15）, the sliding component（15）Have and guide groove（10）The first state and and skewed slot of axial sliding cooperation （11）Second state of circumferential sliding cooperation；The button（6）Lower end extends outwardly one section of protrusion.

3. bidirectional ratchet mechanism according to claim 2, it is characterised in that：The long axis（13）Upper end be cylinder, under End is an inclined-plane, long axis upper end and button（6）It is adapted, long axis lower end and ratchet（1）Constitute ratchet（1）Pawl（5）Cooperation.

4. bidirectional ratchet mechanism according to claim 2, it is characterised in that：The elastic component（9）It is two, an installation In pawl（5）With sleeve（7）Between；One is mounted on upper tooth post（8）And button（6）Between.

5. bidirectional ratchet mechanism according to claim 2, it is characterised in that：The sleeve（7）Including two semicolumns Part, through hole realize installation combination.

6. bidirectional ratchet mechanism according to claim 2, it is characterised in that：The pawl（5）Bottom is equipped with disk（16）, The disk（16）It can be along sleeve（7）Inner wall axially slides, in the disk（16）With the sleeve（7）Between elastic component is set （9）.

7. bidirectional ratchet mechanism according to claim 6, it is characterised in that：The disk（16）Including disk inner ring（17） With disk outer ring（18）, disk inner ring（17）And long axis（13）It is fixed, disk outer ring（18）It can be along sleeve（7）Axial sliding.

8. bidirectional ratchet mechanism according to claim 2, it is characterised in that：The turntable（14）Upside is circumferentially with upwards Inclined-plane, the upper tooth post（8）Downside is equipped with and turntable（14）The compatible inclined-plane in inclined-plane.

9. bidirectional ratchet mechanism according to claim 2, it is characterised in that：The sliding component（15）Top be downward Inclined-plane, the locating part（12）Bottom and the inclined-plane of sliding component be adapted.