CN103104145B - Overrun clutch - Google Patents
Overrun clutch Download PDFInfo
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- CN103104145B CN103104145B CN201310052125.4A CN201310052125A CN103104145B CN 103104145 B CN103104145 B CN 103104145B CN 201310052125 A CN201310052125 A CN 201310052125A CN 103104145 B CN103104145 B CN 103104145B
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- dead bolt
- lock tongue
- lock core
- groove
- lock
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Abstract
The invention discloses an overrun clutch. An inner ring comprises a lock cylinder seat provided with a lock cylinder groove, and a lock cylinder arranged inside the lock cylinder groove and rotating relative to the lock cylinder seat. A lock tongue groove at least penetrating to the lock cylinder groove is formed below the side wall of the lock cylinder seat, a lock tongue is matched inside the lock tongue groove in a sliding mode, and a matching portion is arranged at the top end of the lock tongue. An eccentric pushing post is arranged at the bottom end of the lock cylinder. An outer ring comprises a lower cover body. A clamping groove combined with the lock tongue in a locking mode when the lock tongue is pushed out is arranged in the inner wall of the lower cover body, and the lock tongue and the clamping groove are matched in a ratchet mode. When the lock cylinder is rotated clockwise, the lock tongue is pushed out by the eccentric pushing post and matched with the clamping groove of the lower cover body in the ratchet mode. When the lock cylinder seat is rotated anticlockwise, the lower cover body can be driven to rotate anticlockwise, when the lock cylinder seat is rotated clockwise, the ratchet-shaped clamping groove in the inner wall of the lower cover body and a ratchet-shaped locking block of the lock tongue are in mutual repulsion, and therefore the lock tongue retreats to the lock tongue groove, separating of the lock tongue and the lower cover body is achieved, and the unidirectional rotation function of the overrun clutch is achieved.
Description
Technical field
The present invention relates to a kind ofly make the motion can be along a direction transmission and the ratch mechanism that can not transmit along its rightabout, more precisely, relate to a kind of Retchet gear type freewheel clutch, belong to mechanical field.
Background technology
As everyone knows, ratchet is a kind of unidirectional drive parts, and it has multiple ratchets conventionally, ratchet by spring-biased along radial motion as for ratchet engagement, mechanism is locked; In the time rotating in opposite direction, ratchet separates with ratchet, thereby ratchet is freely rotated.It is expensive for the ratchet of said structure, and manufacture craft requires high, and assembling is comparatively complicated, and maintenance difficult.
Summary of the invention
The present invention, in order to solve problems of the prior art, provides a kind of freewheel clutch.
Technical scheme of the present invention is: a kind of freewheel clutch, comprise outer shroud, and be positioned at outer shroud and and the ring of outer shroud coaxial rotation;
Described interior ring comprises the lock core base with lock core groove, and be positioned at lock core groove and lock core base lock core in relative rotation, the below of described lock core base sidewall has the lock tongue slot at least connecting to lock core groove, in described lock tongue slot, is sliding combined with dead bolt, and the top of described dead bolt is provided with auxiliary section; The bottom of described lock core is provided with eccentric pushing post, and the matching relationship of described eccentric pushing post and auxiliary section is as follows: in the rotation process of lock core, described eccentric pushing post promotes auxiliary section, makes dead bolt pushed away from lock tongue slot;
Described outer shroud comprises lower cover, the draw-in groove that the inwall of described lower cover is provided with in the time that dead bolt is released and dead bolt is sealed, and described dead bolt is that ratchet coordinates with draw-in groove.
Preferably, described auxiliary section is the groove that is arranged on dead bolt top, and a side of described groove extends to the sidewall of dead bolt.
Preferably, the upper guide pad being slidably matched with dead bolt that is provided with of the sidewall of described lock tongue slot.
Preferably, described lock tongue slot connects the two ends of lock core base sidewall, and the direction that dead bolt stretches out is designated as the direction right side, and the left side of described lock tongue slot is provided with the stoping block that prevents that dead bolt from skidding off.
Preferably, a sidewall of described lock tongue slot is provided with the first projection that cross section is wedge shape, comprises the second lozenges that is positioned at first lozenges on right side and is positioned at left side; Described dead bolt comprises dead bolt body, the respective side walls of dead bolt body is provided with the elastic arm stretching out from right to left, the sidewall of described elastic arm and dead bolt body leaves the space for elastic arm distortion, the left end of described elastic arm is provided with the second projection that is wedge structure, comprises the 4th lozenges that is positioned at the 3rd lozenges on right side and is positioned at left side; Described the first projection is as follows with the matching relationship of the second projection: the 3rd lozenges of the second lozenges of described the first projection and the second projection has the cooperation position that contacts of an initial position; Stretch out in the process of lock tongue slot at described dead bolt body, described elastic arm has one and presses to deformation space and make described the first lozenges contact the position coordinating with the 4th lozenges.
Preferably, another sidewall of dead bolt body is provided with the elastic arm stretching out from left to right, the sidewall of described elastic arm and dead bolt body leaves the space for elastic arm distortion, and the left end of described elastic arm is provided with the 3rd projection that is wedge structure coordinating with lock tongue slot sidewall contact all the time.
In the time clockwise rotating lock core, eccentric pushing post is released dead bolt, the draw-in groove ratchet of the inwall of dead bolt and lower cover is combined together, now rotate counterclockwise lock core base and can drive lower cover to rotate counterclockwise, in the time clockwise rotating lock core base, due to the ratchet relation between the two, the ratchet-shaped draw-in groove of lower cover inwall and the ratchet-like clamping block of dead bolt repel mutually, dead bolt is return in lock tongue slot, realized separating of dead bolt and lower cover, thereby realized the one-directional rotation function of freewheel clutch.
Brief description of the drawings
Fig. 1-Fig. 3 shows the structural representation of lock core base in the present invention.
Fig. 4-Fig. 5 shows the structural representation of dead bolt in the present invention.
Fig. 6 shows the structural representation of lower cover in the present invention.
Fig. 7 shows the structural representation of lock core of the present invention.
Fig. 8 shows in Fig. 6 lower cover at the sectional view of the first high spot.
Fig. 9 shows the structural representation of upper cover body in the present invention.
Figure 10 shows the explosive view of filling pipe cap of the present invention.
Figure 11 shows the structural representation of filling pipe cap of the present invention.
Figure 12 shows the structural representation of freewheel clutch the second swivel becket of the present invention.
Figure 13 shows the structural representation of freewheel clutch the first swivel becket of the present invention.
Figure 14 shows the structural representation of freewheel clutch of the present invention.
Figure 15 shows the structural representation of the another kind of mode of freewheel clutch of the present invention.
Figure 16 shows the enlarged drawing at freewheel clutch A place in Figure 15.
Figure 17 shows the assembling schematic diagram of dead bolt and lock tongue slot in the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described further.
With reference to figure 1-Fig. 8, Figure 17, the installation assembly of a kind of lock core of the present invention, comprises the lock core base 101 with lock core groove, and be positioned at lock core groove and lock core base 101 lock core 1 in relative rotation, what lock core base 101 of the present invention was hollow is cylindrical, its one end sealing, and the other end is used for putting into lock core.Described lock core coordinates the structure of key to belong to existing technology, no longer illustrates at this.Lock core 1 of the present invention, the position of departing from its center of circle in its bottom arranges an eccentric pushing post 1a.
Below lock core base 101 sidewalls, have the lock tongue slot 103 at least connecting to lock core groove, in described lock tongue slot 103, be sliding combined with dead bolt 2, the shape of this lock tongue slot 103 can be to match with the shape of dead bolt, and this dead bolt can be slidably reciprocated in lock tongue slot 103.Be provided with auxiliary section 22 on the top of described dead bolt 2; When assembling, described lock core 1 is arranged in lock core base 101, make its eccentric pushing post 1a and auxiliary section 22 there is certain matching relationship, the matching relationship of described eccentric pushing post 1a and auxiliary section 22 is as follows: in the rotation process of lock core 1, described eccentric pushing post 1a promotes the sidewall of auxiliary section, make dead bolt 2 stretch out lock tongue slot 103, realized the function of locking.Auxiliary section 22 of the present invention can be arranged on the groove on dead bolt 2 tops.One side of described groove also can extend to the sidewall of dead bolt 2, and this eccentric pushing post 1a puts in groove, and in rotating, the sidewall of extruding groove, makes dead bolt 2 stretch out lock tongue slot 103; This auxiliary section can be also the contact surface of this dead bolt top projection, thus this eccentric pushing live in 1a and push this contact surface and make dead bolt 2 stretch out lock tongue slot 103, finally realized the lock function of this lock core.
The installation assembly of lock core of the present invention, has adopted a kind of dead bolt that is not used in prior art to release mode, and corresponding key is inserted in lock core, and twisting key makes the eccentric pushing post 1a of lock core 1 bottom that dead bolt 2 is released to lock tongue slot 103.The shape of auxiliary section 22 is set, can selects to release dead bolt while twisting 45 ° and put in place, or twisting is released dead bolt 90 ° time and put in place.With reference to figure 2, Fig. 7, on the outer wall of lock core 1, be provided with rotary spacing piece 1b, the inwall of lock core base is provided with stopper slot 112, when cooperation, after lock core 1 is arranged in the lock core groove of lock core base, rotary spacing piece 1b is arranged in described stopper slot 112, and the radian at the two ends of described stopper slot 112 makes lock core 1 can only rotate 45 °.
Being slidably matched of dead bolt 2 of the present invention and lock tongue slot 103 can be set up a guide pad 102 in described lock tongue slot 103, and this guide pad 102 can coordinate with the groove 23 on dead bolt, plays the effect of a guiding.This guide pad 102 can be arranged on the sidewall of lock tongue slot 103, also can be arranged on its diapire, certainly also can protruding block be set at the sidewall of dead bolt 2, and coordinates with the groove of lock tongue slot 103 sidewalls settings, no longer illustrates at this.
The preferred mode of the present invention is that described lock tongue slot 103 connects the two ends of lock core base 102 sidewalls, is a through hole.The direction that dead bolt 2 is stretched out is designated as the direction right side (right-hand), and its rightabout is left, and now, the left side that is preferably in described lock tongue slot 103 arranges a stoping block 109 and skids off from the left side of lock tongue slot 103 to prevent dead bolt.
Firmly install in lock tongue slot 103 in order to make dead bolt 2, and be convenient to the slip of dead bolt 2 in lock tongue slot 103, dead bolt 2 of the present invention can do following improvement: with reference to figure 8, on a sidewall of described lock tongue slot 103, be provided with the first projection 111 that cross section is wedge shape, comprise the second lozenges 111a that is positioned at the first lozenges 111b on right side and is positioned at left side; Described dead bolt 2 comprises dead bolt body, the respective side walls of dead bolt body is provided with the elastic arm 24 stretching out from right to left, the sidewall of described elastic arm 24 and dead bolt body leaves the space 240 being out of shape for elastic arm 24, and elastic arm 240 increases gradually from the gap of dead bolt body sidewall from right to left.The left end (free end) of described elastic arm 24 is provided with the second projection 25 that is wedge structure, comprises the 3rd lozenges 251 that is positioned at right side and the 4th lozenges 250 that is positioned at left side; The sidewall cooperation of described elastic arm 24 and lock tongue slot 103 makes the matching relationship of described the first projection 111 and the second projection 24 as follows: in the time of initial position, the second lozenges 111a of described the first projection 111 contacts cooperation with the 3rd lozenges 251 of the second projection 25; Now, if make dead bolt 2 stretch out lock tongue slot 103, the second lozenges 111a and the 3rd lozenges 251 pushes mutually, elastic arm 24 is out of shape, finally makes the second lozenges 111a separate with the 3rd lozenges 251; Stretch out in the process of lock tongue slot 103 at described dead bolt body, described elastic arm 24 has one and presses to deformation space and make described the first lozenges 111b contact the position coordinating with the 4th lozenges 250, now, dead bolt 2 has stretched out lock tongue slot 103 to precalculated position, the contacting of the first lozenges 111b and the 4th lozenges 250 coordinates returns lock tongue slot 103 when can preventing that dead bolt 2 is subject to slight power, make dead bolt 2 return lock tongue slot 103, the power that provides one to be greater than elastic arm distortion is at least provided.
The present invention preferably, on another sidewall of dead bolt body, be provided with the elastic arm stretching out from left to right 24 of same structure, the sidewall of described elastic arm 24 and dead bolt body leaves the space for elastic arm distortion, the left end (free end) of this elastic arm is provided with the 3rd projection that is wedge structure coordinating with lock tongue slot sidewall contact, the 3rd projection can be identical with the structure of the second projection, nothing be is at initial position, or stretch out in the process of lock tongue slot at dead bolt, the lozenges of the 3rd projection coordinates with the sidewall contact of lock tongue slot 103 all the time.Because the both sides of dead bolt body are equipped with this elastic arm, thus can make this dead bolt 2 can resilient engagement in lock tongue slot 103, can be convenient to stretching out and retracting of this dead bolt 2.
Dead bolt body of the present invention, can be provided with on its top lightening grooves 26, to reduce the counterweight of dead bolt; Dead bolt body of the present invention can overallly preferably, be provided with the clamping block 21 for locking of protrusion as latch-up structure at its right-hand member, in the time that this dead bolt stretches out, clamping block 21 is together with thing to be locked sealed (engaging).
The installation assembly of lock core of the present invention can be applicable in filling pipe cap, and with reference to figure 6, the outside of lower cover is provided with the screw thread for sealed fuel tank, lock core base 101 is positioned at lower cover 6, in the rotation process of lock core 1, described eccentric pushing post 1a promotes auxiliary section, makes dead bolt 2 pushed away from lock tongue slot 103; The inwall of described lower cover 6 is provided with in the time that dead bolt is released, the draw-in groove 62 sealed with dead bolt.Now, rotation lock core print seat 101, can drive lower cover 6 to rotate, realize lower cover 6 and fuel tank separate and sealed.
The preferred mode of the present invention is, described draw-in groove 62 is ratchet-shaped draw-in groove, be combined together with dead bolt 2 ratchets that stretch out, that is to say that the clamping block 21 that dead bolt right-hand member protrudes is ratchet-like, the ratchet-shaped draw-in groove of itself and lower cover inwall is combined together, in the time clockwise rotating lock core 1, eccentric pushing post 1a releases dead bolt 2, the inwall of dead bolt and lower cover 6 is combined together, with reference to figure 6, now rotating counterclockwise lock core base 101 can drive lower cover 6 to rotate counterclockwise, in the time clockwise rotating lock core base 101, due to the ratchet relation between the two, the ratchet-shaped draw-in groove of lower cover 6 inwalls and the ratchet-like clamping block 21 of dead bolt 2 repel mutually, dead bolt 2 is return in lock tongue slot 103, realize separating of dead bolt 2 and lower cover 6, thereby realize the one-directional rotation function of freewheel clutch.The interior ring of this freewheel clutch comprises lock core base 101, and is positioned at lock core 1, the dead bolt 2 of lock core base 101, and the outer shroud of this freewheel clutch comprises lower cover 6, and the ratchet-shaped draw-in groove arranging on lower cover 6 inwalls.
Cooperation between lower cover 6 and lock core base 101 can adopt structure known in the art, the preferred structure of the present invention is as follows: described lock core base 101 is fixed in the liner 10 of a lid, itself and lid liner 10 can be integrated, the liner 10 of described lid comprises liner body 100, and along the sidewall 107 of the circumferential lower convexity of this body 100, on the circumferencial direction of described sidewall 107, be distributed with multiple for engaging the projection 105 of lower cover 6, correspondingly, the sidewall on described lower cover 6 tops is provided with a circle flange (view does not provide), this flange is stuck in the projection 105 of liner body sidewall setting, and make the lower cover 6 can be along the coaxial rotation of sidewall 107, therefore, rotation by the controlled lockmaking core print seat 101 of liner 10 in lower cover 6.
Now, key is inserted in lock core 1, rotate key and make the eccentric pushing post 1a of lock core 1 that dead bolt 2 is released to lock tongue slot 103, after dead bolt 2 lower cover 6 is locked, rotate counterclockwise liner 10 and can realize rotating counterclockwise of lower cover 6, now, liner 10 and lower cover 6 are synchronous rotation relation, realize separating of lower cover 6 and fuel tank; Clockwise rotate liner 10, the ratchet-like clamping block 21 of dead bolt 2 repels mutually with the ratchet-shaped draw-in groove 62 of lower cover 6 inwalls, and dead bolt 2 is return in lock tongue slot 103, and now liner 10 is in idling conditions.
Also be provided with a upper cover body 3 in the outside of described liner 10, with reference to figure 9, fit system between described upper cover body 3, liner 10 is similar to the fit system between liner 10 and lower cover 6, the flange of liner external wall of upper portion setting is stuck on the projection 30 of upper cover body 3 sidewall circumferencial directions settings, in order to make can not to relatively rotate between liner 10 and upper cover body 3, can limited block 110 be set in the upper surface of liner, be combined together with the groove (view does not provide) arranging in upper cover body 3.Preferably, for the ease of by limited block 110 exactly together with groove fit, on the sidewall of described upper cover body 3, be provided with lead 31, on the sidewall of described liner 10, have accordingly the gathering sill 106 passing for lead 31.
Upper cover body 3, liner 10, lock core base 101 can be integrated structures, in view of the complexity of Shooting Technique, and together with lock core base 101 is injection-moulded in liner 10, and then together with fixed by snap with upper cover body 3.
With reference to Figure 10, Figure 11, a kind of filling pipe cap with lock core of the present invention, comprise upper cover body 3, lower cover 4, lock core 1, the dead bolt 2 of said structure, realize the disengaging of filling pipe cap and fuel tank, the tightening way of filling pipe cap and fuel tank can adopt structure known in the art, and preferred mode is as follows:
For the ease of introducing and describe the application of freewheel clutch in filling pipe cap of the present invention, rotate, dally counterclockwise if can synchronize clockwise between interior ring and outer shroud, defining this connected mode is that reverse overdrive clutch connects, and connects otherwise be defined as forward overdrive clutch.
With reference to figure 10-Figure 11, filling pipe cap of the present invention, also comprise the first swivel becket 4 being fixed together with upper cover body 3, and the 3rd swivel becket 61 being fixed together with lower cover 6, described the 3rd swivel becket 61 and lower cover 6 can be integrated, and it can be the second inwall that is positioned at lower cover 6 tops, and the draw-in groove 62 of lower cover is positioned on the first inwall of its below, the internal diameter of described the first inwall is less than the internal diameter of the second inwall, and forms a step 621 in its junction.When cooperation, the first swivel becket 4 being fixed in upper cover body 3 is connected with the reverse overdrive clutch of the 3rd swivel becket 61 being fixed on lower cover 6.
Above-mentioned structure, makes in the time clockwise rotating upper cover body 3, and the first swivel becket 4 and the 3rd swivel becket 61 synchronously rotate, that is, lower cover 6 is clockwise rotated, and can be tightened on fuel tank.While rotating counterclockwise upper cover body 3, the first swivel becket 4 and the 3rd swivel becket 61 dally, want to turn on filling pipe cap, must use key, be inserted in lock core 1 and rotate, rotate key and make the eccentric pushing post 1a of lock core 1 that dead bolt 2 is released to lock tongue slot 103, the ratchet-like clamping block 21 of dead bolt 2 meshes together with the ratchet-shaped draw-in groove 62 of lower cover 6 inwalls, rotate counterclockwise upper cover body 3 and can realize rotating counterclockwise of lower cover 6, realized separating of lower cover 6 and fuel tank; Clockwise rotate upper cover body 3, the ratchet-like clamping block 21 of dead bolt 2 repels mutually with the ratchet-shaped draw-in groove 62 of lower cover 6 inwalls, and dead bolt 2 is return in lock tongue slot 103; Meanwhile, the first swivel becket 4 and the 3rd swivel becket 61 synchronously rotate, and make upper cover body 3 can drive lower cover 6 synchronously to clockwise rotate.; to rotate (turning on the process of filling pipe cap) be to realize by the ratchet-shaped draw-in groove 62 of lock core, dead bolt, lower cover for counterclockwise synchronous between upper cover body 3 and lower cover 6, and synchronous clockwise between upper cover body 3 and lower cover 6 rotated (tightening the process of filling pipe cap) and realize by the first swivel becket 4, the 3rd swivel becket 61.
For the less operator of strength, it is difficult to judge whether by filling pipe cap and fuel tank locking, the upper cover body 3 of said structure and lower cover 6 are in the time synchronously rotating (tightening the process of filling pipe cap) clockwise, in the time that the less operator of strength twists motionless upper cover body 3, there will be the sealed situation about putting in place that takes for.Filling pipe cap of the present invention has also been set up a convenient operation person and has been judged the sealed device whether putting in place, concrete improvement structure is as follows: between described the first swivel becket 4 and the 3rd swivel becket 61, be also provided with the second swivel becket 5, the top of described the first swivel becket 4 and the second swivel becket 5 is that reverse overdrive clutch is connected, and the below of described the 3rd swivel becket 61 and the second swivel becket 5 is that forward overdrive clutch is connected.In view of above-mentioned structure, in the time rotating counterclockwise upper cover body 3, because the top of described the first swivel becket 4 and the second swivel becket 5 is that reverse overdrive clutch is connected, therefore, no matter how the below of the second swivel becket 5 is connected with the 3rd swivel becket 61, the first swivel becket 4, the second swivel becket 5, the 3rd swivel becket 61 make lower cover 6 and upper cover body 3 in idling conditions (now not considering the structure of lock core, dead bolt); In the time clockwise rotating upper cover body 3, because the below of the second swivel becket 5 and the 3rd swivel becket 61 are connected for forward overdrive clutch, therefore the first swivel becket 4, the second swivel becket 5, the 3rd swivel becket 61 make lower cover 6 and upper cover body 3 also in idling conditions.But no matter be the freewheel clutch of structure how, it is all to overcome certain resistance in realizing idle running relatively, can judge whether filling pipe cap to tighten with this by existing technology or means, in clockwise rotating upper cover body 3, (tighten the process of filling pipe cap), in the process that lower cover 6 and fuel tank are tightened, its resistance being subject to far can not allow the first swivel becket 4, the second swivel becket 5, between the 3rd swivel becket 61, realize idle running, therefore lower cover 6 can be screwed in fuel tank, after locking puts in place, rotary resistance between lower cover 6 and upper cover body 3 has met the first swivel becket 4, the second swivel becket 5, the requirement of idle running between the 3rd swivel becket 61, now, idle running (being that upper cover body 3 is skidded) between upper cover body 3 and lower cover 6, now, judge that lower cover 6 lockings put in place.
With reference to Figure 12, Figure 13, Figure 14, the preferred freewheel clutch of one of the present invention, structure is as follows: comprise the first swivel becket 4 and the second swivel becket 5, the second swivel becket 5 is positioned at the first swivel becket 4 as inner ring, and coaxial with the first swivel becket 4, the outer circumference surface of described the second swivel becket 5 is provided with multiple the first ratchets 51, and described the first ratchet 51 comprises at the bottom of tooth top 511, tooth 512 and extend to the curved surface 510 the second swivel becket outer circumference surface from tooth top 511; The inner peripheral surface of described the first swivel becket 4 is protruding with multiple adjutages 42 for engaging with the first ratchet 51 that depart from its center of circle direction, leaves the deformation space 41 that bends towards the first swivel becket 4 for adjutage 42 between described adjutage 42 and the first swivel becket 4.
The first swivel becket 4 of the present invention and the second swivel becket 5 are all integrated injection moldings, described adjutage 42 stretches in the first swivel becket 4, between the inner peripheral surface of its body and the first swivel becket 4, leave deformation space 41, therefore, under the effect of power, adjutage 42 can be pressed towards on the inner peripheral surface of the first swivel becket 4.When cooperation, can for example be fixed on lid by the mating holes 43 arranging on the first swivel becket 4 end faces, the second swivel becket 5 is positioned at the first swivel becket 4, described adjutage 42 and the first ratchet 51 mesh together, as shown in figure 14, in the time that the first swivel becket 4 clockwise rotates, the free end of adjutage withstands on the first ratchet 51 512 braking surfaces to tooth top 511 at the bottom of tooth, and drives the second swivel becket to clockwise rotate, in the time that the first swivel becket 4 rotates counterclockwise, a resistance (being greater than the deformation force of adjutage 41) is provided to the second swivel becket, the free end of adjutage 42 leaves the first ratchet 51, be rotated further and arrive the curved surface 510 of next ratchet, be rotated further the first swivel becket 4, extruding mutually between curved surface 510 and adjutage 42, and make adjutage 42 press to the inner peripheral surface of the first swivel becket 4, adjutage 42 slips over the tooth top of the first ratchet 51 under the distortion of himself, and under the restoring force of himself, get back to initial position, and clash into the outer circumference surface of the second swivel becket 5, send " " a sound, realize the function that freewheel clutch unidirectional delivery is rotated.
The second swivel becket of the present invention can also do following improvement: the position of closing on the first ratchet 51 on the outer circumference surface of described the second swivel becket 5 is also provided with the second ratchet 53, its structure is identical with the first ratchet 51, comprises the second curved surface 530 that extends at the bottom of the first ratchet tooth 512 from its tooth top; Therefore in the time that the free end 420 of adjutage 42 engages with the first ratchet 51, the sidewall of adjutage 42 is against on the second curved surface 530.In the time that the first swivel becket 4 rotates counterclockwise, the free end 420 engaging with the first ratchet 51 slides along the second curved surface 530 of the second ratchet 53, and deform, when slipping over after the tooth top of the second ratchet 53, adjutage 42 recovers to be out of shape and to clash into the outer circumference surface of the second swivel becket 5, send " " a sound, if now clockwise rotate the first swivel becket 4,41 of adjutages mesh together and drive the second swivel becket 5 to rotate with the second ratchet 53.The setting of the second ratchet, can increase the resistance that the first swivel becket 4 rotates counterclockwise.
Engagement between adjutage 42 of the present invention and the first ratchet 51 can be that the free end 420 of adjutage 42 and the first ratchet 51 are meshed together.Can also be following structure: on the sidewall of described adjutage 42, be provided with the lug boss for engaging with the first ratchet 51.
Freewheel clutch of the present invention can also do following improvement: described adjutage 42 is distributed on the inner peripheral surface of described the first swivel becket 4 equidistantly, and the quantity of described adjutage 42 is at least twice of the first ratchet 51.For example described the second swivel becket is provided with three the first ratchets 51, and the quantity of adjutage 42 is six.In the time that three (one group) adjutages 42 engage with three the first ratchets 51, remaining three adjutages 42 are in vacant state, when rotation, two groups of adjutage successively with the first ratchets 51 engage, when after adjutage 41 fracture damage wherein, still can adopt other adjutage to be rotated further the second swivel becket 5.
Freewheel clutch of the present invention, can also be following structure: with reference to Figure 12, Figure 15, Figure 16, comprise the 3rd swivel becket 61, and be positioned at the 3rd swivel becket 61 and and the second coaxial swivel becket 5 of the 3rd swivel becket 61, the inner peripheral surface of described the 3rd swivel becket 61 is provided with multiple the 3rd ratchet slots 610, described the 3rd ratchet slot 610 comprises bottom land 611, and extends to the 3rd curved surface 612 the 3rd swivel becket 61 inner peripheral surfaces from bottom land 611; The outer circumference surface of described the second swivel becket 5 is protruding with the second adjutage 52 multiple and that the 3rd ratchet slot 610 engages, leaves the deformation space that bends towards the second swivel becket 5 for the second adjutage 52 between described the second adjutage 52 and the second swivel becket 5.
The second swivel becket 5 of the present invention and the second adjutage 52 are integrated injection moldings, between the second adjutage 52 and the outer circumference surface of the second swivel becket 5, leave the space 54 of distortion, therefore under the effect of power, the second adjutage 52 can be pressed towards on the outer circumference surface of the second swivel becket 5.When cooperation, the second swivel becket 5 is positioned at the 3rd swivel becket 61, described the second adjutage 52 and the 3rd ratchet slot 610 mesh together, and in the time that the 3rd swivel becket 61 clockwise rotates, the second adjutage 52 withstands the 3rd ratchet slot 610 and drives the second swivel becket 5 to clockwise rotate, in the time that the 3rd swivel becket 61 rotates counterclockwise, a resistance (being greater than the deformation force of the second adjutage 52) is provided to the second swivel becket, the second adjutage 52 leaves the 3rd ratchet slot 610, and make mutually to push between the 3rd curved surface 612 and the second adjutage 52, the second adjutage 52 is pressed towards the outer circumference surface of the second swivel becket 5, finally make the second adjutage 52 depart from the 3rd ratchet slot 610 and slide on the inner peripheral surface of the 3rd swivel becket 61, until " falling into " next the 3rd ratchet slot 610, and clash into the bottom land 610 of the 3rd ratchet slot, send " " a sound, realize the function that freewheel clutch unidirectional delivery is rotated.
Engagement between the present invention's the second adjutage 52 and the 3rd ratchet slot 610 can be passed through the free end of the second adjutage 52, also can be following structure: with reference to Figure 16, be provided with the ratchet 520 for engaging with the 3rd ratchet slot 610 in the outside of described the second adjutage 52, shape, the structure of this ratchet are identical with above-mentioned the first ratchet 51, comprise at the bottom of tooth top 523, tooth 524, and extended to the curved surface 521 of the second adjutage 52 sidewalls by tooth top 523, also comprise the braking surface 522 that is extended at the bottom of tooth 524 by tooth top 523.
Freewheel clutch of the present invention can combine the first swivel becket 4, the second swivel becket 5, the 3rd swivel becket 61, structure is as follows: described the second adjutage 52 is positioned at the below of the second swivel becket 5 outer circumference surfaces, the first ratchet 51 is positioned at the top of the second swivel becket 5 outer circumference surfaces, in coordinating, the first swivel becket 4 engages with the first ratchet 51 of the second swivel becket 5, and the 3rd swivel becket 61 engages with the second adjutage 52 of the second swivel becket 5.Clockwise rotate the first swivel becket 4, drive the second swivel becket 5 to clockwise rotate, now the 3rd swivel becket 61 is relative to not rotating; Rotate counterclockwise the first swivel becket 4, now the 3rd swivel becket 61 and the relation of the second swivel becket 5 in synchronous rotation, therefore, even under the deformation drag of adjutage 42, the first swivel becket 4 also cannot drive the second swivel becket 5 to rotate counterclockwise, the freewheel clutch of this kind of function can be applicable in the filling pipe cap or other lids with lock core, be used for judging whether lid is tightened,, make that lid tightens that front suffered resistance is less than that the first swivel becket 4, second rotates 5, required power dallies between the 3rd swivel becket 61.
Fixed form in the present invention between the first swivel becket 4 and lower cover 3 can adopt structure known in the art, preferably: on the end face of described the first swivel becket 4, be provided with multiple fastening holes 43, in described lower cover 3, the end face of liner 10 is provided with the protruding block 104 fastening with this fastening hole 43.When assembling, the first swivel becket 4 is passed to lock core base 101 and is fastened in this fastening hole 43, the second swivel becket 5 is through lock core base 101 and be positioned at lower cover 6 first inwalls are connected place formation step 621 with the second inwall.
Filling pipe cap of the present invention is also provided with sealing ring 7 on the sidewall of lower cover 6, and bottom is provided with pressure regulator valve 8, and the outer wall of upper cover body 3 is also provided with suspender belt 9, and these all belong to existing technology, no longer illustrate at this.
The present invention is by preferred embodiment having carried out detailed explanation.But, by studying carefully above, the variation to each embodiment and to increase be also that one of ordinary skill in the art institute is apparent.Being intended that all these variations and increasing of applicant all dropped in the scope that the claims in the present invention protect.
Similar numbering refers to similar element in the whole text.For clarity, may there is in the accompanying drawings the situation that some line, layer, element, parts or feature are amplified.
Term used herein is only for to be illustrated specific embodiment, and it is not intended to limit the invention.Unless otherwise defined, all terms used herein (comprising technical term and scientific terminology) are all identical with one of ordinary skill in the art's of the present invention understanding.
Claims (6)
1. a freewheel clutch, comprises outer shroud, and be positioned at outer shroud and and the ring of outer shroud coaxial rotation, it is characterized in that:
Described interior ring comprises the lock core base with lock core groove, and be positioned at lock core groove and lock core base lock core in relative rotation, the below of described lock core base sidewall has the lock tongue slot at least connecting to lock core groove, in described lock tongue slot, is sliding combined with dead bolt, and the top of described dead bolt is provided with auxiliary section; The bottom of described lock core is provided with eccentric pushing post, and the matching relationship of described eccentric pushing post and auxiliary section is as follows: in the rotation process of lock core, described eccentric pushing post promotes auxiliary section, makes dead bolt pushed away from lock tongue slot;
Described outer shroud comprises lower cover, the draw-in groove that the inwall of described lower cover is provided with in the time that dead bolt is released and dead bolt is sealed, and described dead bolt is that ratchet coordinates with draw-in groove.
2. freewheel clutch according to claim 1, is characterized in that: described auxiliary section is the groove that is arranged on dead bolt top, and a side of described groove extends to the sidewall of dead bolt.
3. freewheel clutch according to claim 1, is characterized in that: the upper guide pad being slidably matched with dead bolt that is provided with of sidewall of described lock tongue slot.
4. according to the freewheel clutch described in claim 1-3 any one, it is characterized in that: described lock tongue slot connects the two ends of lock core base sidewall, and the direction that dead bolt stretches out is designated as the direction right side, and the left side of described lock tongue slot is provided with the stoping block that prevents that dead bolt from skidding off.
5. freewheel clutch according to claim 4, is characterized in that: a sidewall of described lock tongue slot is provided with the first projection that cross section is wedge shape, comprises the second lozenges that is positioned at first lozenges on right side and is positioned at left side; Described dead bolt comprises dead bolt body, the respective side walls of dead bolt body is provided with the elastic arm stretching out from right to left, the sidewall of described elastic arm and dead bolt body leaves the space for elastic arm distortion, the left end of described elastic arm is provided with the second projection that is wedge structure, comprises the 4th lozenges that is positioned at the 3rd lozenges on right side and is positioned at left side; Described the first projection is as follows with the matching relationship of the second projection: the 3rd lozenges of the second lozenges of described the first projection and the second projection has the cooperation position that contacts of an initial position; Stretch out in the process of lock tongue slot at described dead bolt body, described elastic arm has one and presses to deformation space and make described the first lozenges contact the position coordinating with the 4th lozenges.
6. freewheel clutch according to claim 5, it is characterized in that: another sidewall of dead bolt body is provided with the elastic arm stretching out from left to right, the sidewall of described elastic arm and dead bolt body leaves the space for elastic arm distortion, and the left end of described elastic arm is provided with the 3rd projection that is wedge structure coordinating with lock tongue slot sidewall contact all the time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310052125.4A CN103104145B (en) | 2013-02-18 | 2013-02-18 | Overrun clutch |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310052125.4A CN103104145B (en) | 2013-02-18 | 2013-02-18 | Overrun clutch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103104145A CN103104145A (en) | 2013-05-15 |
| CN103104145B true CN103104145B (en) | 2014-11-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310052125.4A Active CN103104145B (en) | 2013-02-18 | 2013-02-18 | Overrun clutch |
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| Country | Link |
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| CN (1) | CN103104145B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2501965Y (en) * | 2001-08-27 | 2002-07-24 | 浙江天宇实业有限公司 | Multifunctional mortise lock for door |
| CN2856322Y (en) * | 2006-01-18 | 2007-01-10 | 深圳市海贝斯智能科技有限公司 | Clutch gear of antitheft lock |
| CN203160849U (en) * | 2013-02-18 | 2013-08-28 | 安徽江淮汽车股份有限公司 | Overrun clutch |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001063077A1 (en) * | 2000-02-25 | 2001-08-30 | Atoma International Corp. | Vehicle door latch |
| JP2003120104A (en) * | 2001-10-04 | 2003-04-23 | Denso Corp | Door-lock driving device |
-
2013
- 2013-02-18 CN CN201310052125.4A patent/CN103104145B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2501965Y (en) * | 2001-08-27 | 2002-07-24 | 浙江天宇实业有限公司 | Multifunctional mortise lock for door |
| CN2856322Y (en) * | 2006-01-18 | 2007-01-10 | 深圳市海贝斯智能科技有限公司 | Clutch gear of antitheft lock |
| CN203160849U (en) * | 2013-02-18 | 2013-08-28 | 安徽江淮汽车股份有限公司 | Overrun clutch |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2003-120104A 2003.04.23 * |
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| CN103104145A (en) | 2013-05-15 |
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