CN203161895U - Overrun clutch - Google Patents
Overrun clutch Download PDFInfo
- Publication number
- CN203161895U CN203161895U CN 201320075025 CN201320075025U CN203161895U CN 203161895 U CN203161895 U CN 203161895U CN 201320075025 CN201320075025 CN 201320075025 CN 201320075025 U CN201320075025 U CN 201320075025U CN 203161895 U CN203161895 U CN 203161895U
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- China
- Prior art keywords
- swivel becket
- ratchet
- adjutage
- rotating ring
- dead bolt
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Abstract
The utility model discloses an overrun clutch. The overrun clutch comprises a second rotating ring which is positioned in a first rotating ring and coaxial with the first rotating ring, a plurality of first ratchets are arranged on the outer circumferential face of the second rotating ring, a plurality of extension arms deviating from the center of the first rotating ring and used for meshing with the first ratchets protrude on the inner circumferential face of the first rotating ring, and transformation spaces for the extension arms to bend towards the first rotating ring are reserved among the extension arms and the first rotating ring. When the first rotating ring rotates clockwise, free ends of the extension arms are butted against braking surfaces from ratchet bottoms to ratchet tops on the first ratchets, and the second rotating ring is driven to rotate clockwise; and when the first rotating ring rotates anticlockwise, curve surfaces and the extension arms squeeze with one another to press the extension arms to the inner circumferential face of the first rotating ring and return back to initial positions by own restoring force after sliding through the ratchet tops of the first ratchets, and thereby a function of unidirectional delivering rotation of the overrun clutch is realized.
Description
Technical field
The utility model relates to a kind ofly makes the motion can be along a direction transmission and the ratchet mechanism that can not transmit along its opposite direction, more precisely, relate to a kind of ratchet type overrunning clutch, belongs to mechanical field.
Background technique
As everyone knows, ratchet is a kind of unidirectional drive parts, and it has a plurality of ratchets usually, ratchet by the spring bias voltage along radial motion as for ratchet engagement, mechanism is locked; When rotating in opposite direction, ratchet separates with ratchet, thereby ratchet is freely rotated.It is expensive for the ratchet of said structure, and preparation process requires high, and assembling is comparatively complicated, and maintenance difficult.
The model utility content
The utility model provides a kind of free wheel device in order to solve problems of the prior art, and it is simple in structure, and it is convenient to assemble, keep in repair.
In order to realize above-mentioned purpose, the technical solution of the utility model is: a kind of free wheel device, comprise first swivel becket, and be positioned at first swivel becket and and the second coaxial swivel becket of first swivel becket, the outer peripheral surface of described second swivel becket is provided with a plurality of first ratchets, and described first ratchet comprises at the bottom of tooth top, the tooth and extends to curved surface on the second swivel becket outer peripheral surface from tooth top; The inner peripheral surface of described first swivel becket is protruding with a plurality of departing from being used for and the adjutage of first ratchet engagement of its center of circle direction, leaves the deformation space that bends towards first swivel becket for adjutage between described adjutage and first swivel becket.
Preferably, the free end of described adjutage and first ratchet engagement.
Preferably, the position of closing on first ratchet on the outer peripheral surface of described second swivel becket also is provided with second ratchet, and described second ratchet comprises from its tooth top and extends to second curved surface at the bottom of the tooth of first ratchet; The relation of second ratchet and adjutage is as follows: when the free end of adjutage and first ratchet engagement, the sidewall of adjutage is against on second curved surface.
Preferably, the sidewall of described adjutage be provided with for the lug boss of first ratchet engagement.
Preferably, described adjutage is distributed on the inner peripheral surface of described first swivel becket equidistantly, and the quantity of described adjutage is the twice at least of first ratchet.
Preferably, the quantity of described first ratchet is three, and adjutage is six.
Free wheel device of the present utility model is when cooperating, and when first swivel becket clockwise rotated, the free end of adjutage withstood on first ratchet at the bottom of the tooth braking surface to tooth top, and drives second swivel becket and clockwise rotate; When first swivel becket rotates counterclockwise, a resistance (greater than the deformation force of adjutage) is provided for second swivel becket, the free end of adjutage leaves first ratchet, be rotated further and arrive the curved surface of next ratchet, be rotated further first swivel becket, mutual extrusion between curved surface and the adjutage, and make adjutage press to the inner peripheral surface of first swivel becket, adjutage slips over the tooth top of first ratchet under the distortion of himself, and under the restoring force of himself, get back to initial position, and clash into the outer peripheral surface of second swivel becket, send " " one, realized the function that the free wheel device unidirectional delivery is rotated.
Description of drawings
Fig. 1-Fig. 3 shows the structural representation of lock core base in the utility model.
Fig. 4-Fig. 5 shows the structural representation of dead bolt in the utility model.
Fig. 6 shows the structural representation of lower cover in the utility model.
Fig. 7 shows the structural representation of the utility model lock core.
Fig. 8 shows among Fig. 6 lower cover at the sectional view of first high spot.
Fig. 9 shows the structural representation of upper cover body in the utility model.
Figure 10 shows the explosive view of the utility model oil filling pipe lid.
Figure 11 shows the structural representation of the utility model oil filling pipe lid.
Figure 12 shows the structural representation of the utility model free wheel device second swivel becket.
Figure 13 shows the structural representation of the utility model free wheel device first swivel becket.
Figure 14 shows the structural representation of the utility model free wheel device.
Figure 15 shows the structural representation of the another kind of mode of the utility model free wheel device.
Figure 16 shows the enlarged view at free wheel device A place among Figure 15.
Figure 17 shows the assembling schematic representation of dead bolt and lock tongue slot in the utility model.
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is described further.
With reference to figure 1-Fig. 8, Figure 17, the mounting unit assembly of a kind of lock core of the present utility model, comprise 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, lock core base 101 of the present utility model is the cylindrical of hollow, the sealing of one end, the other end is used for putting into lock core.Described lock core cooperates the structure of key to belong to existing technology, no longer specifies at this.Lock core 1 of the present utility model, the position of departing from its center of circle in its bottom arranges an eccentric pushing post 1a.
Have the lock tongue slot 103 that connects at least to lock core groove below lock core base 101 sidewalls, be sliding combined with dead bolt 2 in the described lock tongue slot 103, the shape of this lock tongue slot 103 can be that the shape with dead bolt matches, and makes this dead bolt to slidably reciprocate in lock tongue slot 103.Be provided with auxiliary section 22 on the top of described dead bolt 2; In the time of assembling, described lock core 1 is installed in the lock core base 101, make its eccentric pushing post 1a and auxiliary section 22 have 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 utility model 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 the groove, and when rotating, the sidewall of extruding groove makes dead bolt 2 stretch out lock tongue slot 103; This auxiliary section also can be the surface of contact of this dead bolt top projection, thus this eccentric pushing live in 1a and push this surface of contact and make dead bolt 2 stretch out lock tongue slot 103, finally realized the lock function of this lock core.
The mounting unit assembly of the utility model lock core has adopted a kind of dead bolt that is not used in prior art to release mode, and in the key insertion lock core with correspondence, the twisting key makes the eccentric pushing post 1a of lock core 1 bottom that dead bolt 2 is released lock tongue slots 103.The shape of auxiliary section 22 is set, releases dead bolt in the time of can selecting to twist 45 ° and put in place, release dead bolt when perhaps twisting 90 ° and put in place.With reference to figure 2, Fig. 7, outer wall at lock core 1 is provided with rotary spacing piece 1b, the inwall of lock core base is provided with restraining groove 112, when cooperating, after lock core 1 is installed in the lock core groove of lock core base, rotary spacing piece 1b is arranged in described restraining groove 112, and the radian at the two ends of described restraining groove 112 makes lock core 1 can only rotate 45 °.
Being slidingly matched of dead bolt 2 of the present utility model and lock tongue slot 103 can be set up a guide pad 102 in described lock tongue slot 103, this guide pad 102 can cooperate with the groove 23 on the 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, also can protruding block be set at the sidewall of dead bolt 2 certainly, and cooperates with the groove of lock tongue slot 103 sidewalls setting, no longer specifies at this.
The preferred mode of the utility model 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 opposite direction is left, and at this moment, 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 the 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 utility model can be done following improvement: with reference to figure 8, sidewall at described lock tongue slot 103 is provided with first projection 111 that the cross section is wedge shape, comprises the first sphenoid surface 111b that is positioned at the right side and the second sphenoid surface 111a that is positioned at the left side; Described dead bolt 2 comprises the dead bolt body, the respective side walls of dead bolt body is provided with the elastic arm 24 that stretches out from right to left, the sidewall of described elastic arm 24 and dead bolt body leaves the space 240 for elastic arm 24 distortion, and elastic arm 240 increases gradually from the gap of dead bolt body sidewall from right to left.The left end of described elastic arm 24 (free end) is provided with second projection 25 that is wedge-shaped structure, comprises the 3rd sphenoid surface 251 that is positioned at the right side and the 4th sphenoid surface 250 that is positioned at the left side; The sidewall of described elastic arm 24 and lock tongue slot 103 cooperates makes that the matching relationship of described first projection, 111 and second projection 24 is as follows: when initial position, the second sphenoid surface 111a of described first projection 111 contacts cooperation with the 3rd sphenoid surface 251 of second projection 25; At this moment, if make dead bolt 2 stretch out lock tongue slot 103, the second sphenoid surface 111a and the 3rd sphenoid surface 251 mutual extrusion, make the second sphenoid surface 111a to be separated elastic arm 24 distortion with the 3rd sphenoid surface 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 the described first sphenoid surface 111b contact the position that cooperates with the 4th sphenoid surface 250, at this moment, dead bolt 2 has stretched out lock tongue slot 103 to the precalculated position, lock tongue slot 103 is return in contacting of the first sphenoid surface 111b and the 4th sphenoid surface 250 when cooperation can prevent that dead bolt 2 is subjected to slight power, make dead bolt 2 return lock tongue slot 103, need to provide one at least greater than the power of elastic arm distortion.
The utility model preferably, be provided with the elastic arm that stretches out from left to right 24 of same structure at another sidewall of dead bolt body, the sidewall of described elastic arm 24 and dead bolt body leaves the space for the elastic arm distortion, the left end of this elastic arm (free end) is provided with the 3rd projection that is wedge-shaped structure that contacts cooperation with the lock tongue slot sidewall, the 3rd projection can be identical with the structure of second projection, there is not be at initial position, still stretch out in the process of lock tongue slot at dead bolt, the sphenoid surface of the 3rd projection contacts cooperation with the sidewall of lock tongue slot 103 all the time.Because the both sides of dead bolt body are equipped with this elastic arm, so but can make these dead bolt 2 resilient engagement in lock tongue slot 103, can be convenient to stretching out and withdrawing of this dead bolt 2.
Dead bolt body of the present utility model can be provided with loss of weight groove 26 on its top, to reduce the counterweight of dead bolt; Dead bolt body of the present utility model can be whole as locking structure, preferably, is provided with the clamping block 21 that is used for locking of protrusion at its right-hand member, and when this dead bolt stretched out, clamping block 21 and thing to be locked sealed (engaging) were together.
The mounting unit assembly of the utility model lock core can be applicable in the oil filling pipe lid, 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 the auxiliary section, makes dead bolt 2 pushed away from lock tongue slot 103; The inwall of described lower cover 6 is provided with when dead bolt is released, the draw-in groove 62 sealed with dead bolt.At this moment, rotation lock core print seat 101 can drive lower cover 6 rotations, and realization lower cover 6 separates with sealed with fuel tank.
The preferred mode of the utility model is, described draw-in groove 62 is the 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 the dead bolt right-hand member protrudes is ratchet-like, the ratchet-shaped draw-in groove of itself and lower cover inwall is combined together, when 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, rotate counterclockwise lock core base 101 and can drive lower cover 6 and rotate counterclockwise this moment, when clockwise rotating lock core base 101, because the relation of the ratchet 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, make dead bolt 2 return in the lock tongue slot 103, realized separating of dead bolt 2 and lower cover 6, thereby realized the one-way rotation function of free wheel device.The interior ring of this free wheel device comprises lock core base 101, and the lock core 1, the dead bolt 2 that are positioned at lock core base 101, and the outer shroud of this free wheel device comprises lower cover 6, and the ratchet-shaped draw-in groove that arranges on lower cover 6 inwalls.
Cooperation between lower cover 6 and the lock core base 101 can be adopted structure known in the art, the utility model preferred construction 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, circumferencial direction at described sidewall 107 is distributed with a plurality of projections 105 for engaging 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 that lower cover 6 can be along the coaxial rotation of sidewall 107, so, by liner 10 rotations of controlled lockmaking core print seat 101 in lower cover 6.
At this moment, key is inserted in the lock core 1, rotate key and make the eccentric pushing post 1a of lock core 1 that dead bolt 2 is released lock tongue slot 103, dead bolt 2 with after lower cover 6 locking, rotate counterclockwise liner 10 and can realize rotating counterclockwise of lower cover 6, at this moment, liner 10 and lower cover 6 are synchronous rotation relation, and realization lower cover 6 separates with 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 the lock tongue slot 103, and this moment, liner 10 was 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, the liner 10 is similar to the fit system between the lower cover 6 to liner 10, the flange of liner external wall of upper portion setting is stuck on the projection 30 of upper cover body 3 sidewall circumferencial directions setting, can not relatively rotate in order to make between liner 10 and the upper cover body 3, limiting stopper 110 can be set in the upper-end surface of liner, be combined together with the groove (view does not provide) that arranges on the upper cover body 3.Preferably, for the ease of limiting stopper 110 is in the same place with groove fit exactly, be provided with directional post 31 at the sidewall of described upper cover body 3, the sidewall at described liner 10 has the guiding groove 106 that passes for directional post 31 accordingly.
With reference to Figure 10, Figure 11, the oil filling pipe lid of a kind of core with lock of the present utility model, the upper cover body 3, lower cover 4, lock core 1, the dead bolt 2 that comprise said structure, realized the disengaging of oil filling pipe lid and fuel tank, the oil filling pipe lid can adopt structure known in the art with the mode of tightening of fuel tank, and preferred mode is as follows:
For the ease of introducing and describe the application of free wheel device in the utility model oil filling pipe lid, if can rotate synchronously clockwise, dally counterclockwise between interior ring and the outer shroud, then defining this Placement is that reverse overdrive clutch connects, and connects otherwise then be defined as the forward overdrive clutch.
With reference to figure 10-Figure 11, oil filling pipe lid of the present utility model, also comprise first swivel becket 4 that is fixed together with upper cover body 3, and the 3rd swivel becket 61 that is fixed together with lower cover 6, described the 3rd swivel becket 61 and lower cover 6 can be integrated, and it can be second inwall that is positioned at lower cover 6 tops, and the draw-in groove 62 of lower cover is positioned on first inwall of its below, the internal diameter of described first inwall is less than the internal diameter of second inwall, and forms a step 621 in its joint.When cooperating, first swivel becket 4 that is fixed on the upper cover body 3 is connected with the 3rd swivel becket 61 reverse overdrive clutch on being fixed on lower cover 6.
Above-mentioned structure makes when clockwise rotating upper cover body 3, and first swivel becket 4 and the 3rd swivel becket 61 rotate synchronously, that is, make lower cover 6 clockwise rotate, and it can be tightened on the fuel tank.When rotating counterclockwise upper cover body 3, first swivel becket 4 and 61 idle running of the 3rd swivel becket, want to turn on the oil filling pipe lid, must use key, be inserted in the lock core 1 and rotate, rotate key and make the eccentric pushing post 1a of lock core 1 that dead bolt 2 is released 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 the lock tongue slot 103; Simultaneously, first swivel becket 4 and the 3rd swivel becket 61 rotate synchronously, make upper cover body 3 can drive lower cover 6 and clockwise rotate synchronously.Namely, rotating synchronously counterclockwise between upper cover body 3 and the lower cover 6 (process of turning on the oil filling pipe lid) is to realize by the ratchet-shaped draw-in groove 62 of lock core, dead bolt, lower cover, and rotating synchronously clockwise between upper cover body 3 and the lower cover 6 (process of tightening the oil filling pipe lid) realized by first swivel becket 4, the 3rd swivel becket 61.
For the less operator of strength, it is difficult to judge whether with oil filling pipe lid and fuel tank locking, the upper cover body 3 of said structure and lower cover 6 are when rotating (process of tightening the oil filling pipe lid) clockwise synchronously, when the less operator of strength twisted motionless upper cover body 3, sealed situation about putting in place then can appear takeing for.Oil filling pipe of the present utility model lid has also been set up one and has been convenient to the operator and judges the sealed device that whether puts in place, concrete improvement structure is as follows: also be provided with second swivel becket 5 between described first swivel becket 4 and the 3rd swivel becket 61, the top of described first swivel becket 4 and second swivel becket 5 is that reverse overdrive clutch is connected, and the below of described the 3rd swivel becket 61 and second swivel becket 5 is connected for the forward overdrive clutch.In view of above-mentioned structure, when rotating counterclockwise upper cover body 3, because the top of described first swivel becket 4 and second swivel becket 5 is that reverse overdrive clutch is connected, so, no matter how the below of second swivel becket 5 is connected with the 3rd swivel becket 61, first swivel becket 4, second swivel becket 5, the 3rd swivel becket 61 make lower cover 6 and upper cover body 3 be in idling conditions (not considering the structure of lock core, dead bolt this moment); When clockwise rotating upper cover body 3, because the below of second swivel becket 5 is connected for the forward overdrive clutch with the 3rd swivel becket 61, so first swivel becket 4, second swivel becket 5, the 3rd swivel becket 61 make lower cover 6 and upper cover body 3 also be in idling conditions.But no matter be the free wheel device of structure how, it all is to overcome certain resistance when realizing idle running relatively, can judge whether the oil filling pipe lid is tightened with this by existing technology or means; Namely when clockwise rotating upper cover body 3, (tighten the process of oil filling pipe lid), in the process that lower cover 6 and fuel tank are tightened, its resistance that is subjected to far can not allow first swivel becket 4, second swivel becket 5, realize idle running between the 3rd swivel becket 61, so lower cover 6 can be screwed in the fuel tank, after locking puts in place, first swivel becket 4 has been satisfied in rotational resistance between lower cover 6 and the upper cover body 3, second swivel becket 5, the requirement of idle running between the 3rd swivel becket 61, at this moment, idle running (being that upper cover body 3 is skidded) between upper cover body 3 and the lower cover 6, at this moment, judge that lower cover 6 lockings put in place.
With reference to Figure 12, Figure 13, Figure 14, a kind of preferred free wheel device of the present utility model, structure is as follows: comprise first swivel becket 4 and second swivel becket 5, second swivel becket 5 is positioned at first swivel becket 4 as inner ring, and it is coaxial with first swivel becket 4, the outer peripheral surface of described second swivel becket 5 is provided with a plurality of first ratchets 51, and described first ratchet 51 comprises at the bottom of tooth top 511, the tooth 512 and extend to curved surface 510 on the second swivel becket outer peripheral surface from tooth top 511; The inner peripheral surface of described first swivel becket 4 is protruding with a plurality of departing from being used for and the adjutage 42 of first ratchet, 51 engagements of its center of circle direction, leaves the deformation space 41 that bends towards first swivel becket 4 for adjutage 42 between described adjutage 42 and first swivel becket 4.
First swivel becket 4 of the present utility model and second swivel becket 5 all are integrated injection moldings, described adjutage 42 stretches in first swivel becket 4, leave deformation space 41 between the inner peripheral surface of its body and first swivel becket 4, so, under the effect of power, adjutage 42 can be pressed towards on the inner peripheral surface of first swivel becket 4.When cooperating, for example can be fixed on by the matching hole 43 that arranges on first swivel becket, 4 end faces on the lid, second swivel becket 5 is positioned at first swivel becket 4, described adjutage 42 and first ratchet 51 mesh together, as shown in figure 14, when first swivel becket 4 clockwise rotated, the free end of adjutage withstood on first ratchet 51 512 braking surfaces to tooth top 511 at the bottom of the tooth, and drove second swivel becket and clockwise rotate; When first swivel becket 4 rotates counterclockwise, a resistance (greater than the deformation force of adjutage 41) is provided for second swivel becket, the free end of adjutage 42 leaves first ratchet 51, be rotated further and arrive the curved surface 510 of next ratchet, be rotated further first swivel becket 4, mutual extrusion between curved surface 510 and the adjutage 42, and make adjutage 42 press to the inner peripheral surface of first swivel becket 4, adjutage 42 slips over the tooth top of 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 peripheral surface of second swivel becket 5, send " " one, realized the function that the free wheel device unidirectional delivery is rotated.
Second swivel becket of the present utility model can also be done following improvement: the position of closing on first ratchet 51 at the outer peripheral surface of described second swivel becket 5 also is provided with second ratchet 53, its structure is identical with first ratchet 51, comprises extending at the bottom of first ratchet tooth 512 second curved surface 530 from its tooth top; So when the free end 420 of adjutage 42 and 51 engagements of first ratchet, the sidewall of adjutage 42 is against on second curved surface 530.When first swivel becket 4 rotates counterclockwise, slide with the free end 420 of first ratchet 51 engagement second curved surface 530 along second ratchet 53, and deform, behind the tooth top that slips over second ratchet 53, adjutage 42 recovers distortion and clashes into the outer peripheral surface of second swivel becket 5, send " " one, if clockwise rotate first swivel becket 4 this moment, 41 of adjutages and second ratchet 53 mesh together and drive second swivel becket 5 and rotate.The setting of second ratchet can increase the resistance that first swivel becket 4 rotates counterclockwise.
Engagement between the utility model adjutage 42 and first ratchet 51 can be that the free end 420 of adjutage 42 and first ratchet 51 are meshed together.Can also be following structure: the sidewall of described adjutage 42 be provided with for the lug boss of first ratchet, 51 engagements.
Free wheel device of the present utility model can also be done following improvement: described adjutage 42 is distributed on the inner peripheral surface of described first swivel becket 4 equidistantly, and the quantity of described adjutage 42 is the twice at least of first ratchet 51.For example described second swivel becket is provided with three first ratchets 51, and the quantity of adjutage 42 is six.In the time of three (one group) adjutages 42 and three first ratchet, 51 engagements, remaining three adjutages 42 are in vacant state, when rotating, two groups of adjutages mesh with first ratchet 51 successively, after adjutage 41 fracture damage wherein, still can adopt other adjutage to be rotated further second swivel becket 5.
Free wheel device of the present utility model, 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 a plurality of the 3rd ratchet slots 610, described the 3rd ratchet slot 610 comprises bottom land 611, and extends to the 3rd curved surface 612 on the 3rd swivel becket 61 inner peripheral surfaces from bottom land 611; The outer peripheral surface of described second swivel becket 5 is protruding with second adjutages 52 a plurality of and 610 engagements of the 3rd ratchet slot, leaves the deformation space that bends towards second swivel becket 5 for second adjutage 52 between described second adjutage 52 and second swivel becket 5.
Engagement between the utility model second adjutage 52 and the 3rd ratchet slot 610 can be by the free end of second adjutage 52, can be following structure also: with reference to Figure 16, be provided with in the outside of described second adjutage 52 for the ratchet 520 of the 3rd ratchet slot 610 engagements, the shape of this ratchet, structure are identical with above-mentioned first ratchet 51, comprise at the bottom of tooth top 523, the tooth 524, and extend to the curved surface 521 of second adjutage, 52 sidewalls by tooth top 523, also comprise being extended at the bottom of the tooth 524 braking surface 522 by tooth top 523.
Free wheel device of the present utility model can combine first swivel becket 4, second swivel becket 5, the 3rd swivel becket 61, structure is as follows: described second adjutage 52 is positioned at the below of second swivel becket, 5 outer peripheral surfaces, first ratchet 51 is positioned at the top of second swivel becket, 5 outer peripheral surfaces, when cooperating, first ratchet, 51 engagements of first swivel becket 4 and second swivel becket 5, second adjutage, 52 engagements of the 3rd swivel becket 61 and second swivel becket 5.Clockwise rotate first swivel becket 4, drive second swivel becket 5 and clockwise rotate, this moment, the 3rd swivel becket 61 was relative to not rotating; Rotate counterclockwise first swivel becket 4, this moment, the 3rd swivel becket 61 and second swivel becket 5 were in the relation of synchronous rotation, so, even under the deformation resistance of adjutage 42, first swivel becket 4 also can't drive second swivel becket 5 and rotate counterclockwise, the free wheel device of this kind function can be applicable in the oil filling pipe lid or other lids of core with lock, be used for judging whether lid is tightened, that is, make lid tighten preceding suffered resistance and rotate the required power of idle running between the 5, the 3rd swivel becket 61 less than first swivel becket 4, second.
Means of fixation in the utility model between first swivel becket 4 and the lower cover 3 can adopt structure known in the art, preferably: the end face at described first swivel becket 4 is provided with a plurality of fastening holes 43, and the end face of liner 10 is provided with the protruding block 104 that fastens with this fastening hole 43 in the described lower cover 3.Assembling time, first swivel becket 4 is passed lock core base 101 and be fastened in this fastening hole 43, second swivel becket 5 passes lock core base 101 and is positioned at the formed step 621 of lower cover 6 first inwalls and the second inwall joint.
Oil filling pipe lid of the present utility model also is provided with seal ring 7 on the sidewall of lower cover 6, the bottom is provided with pressure regulator valve 8, and the outer wall of upper cover body 3 also is provided with suspender belt 9, and these all belong to existing technology, no longer specify at this.
The utility model is by preferred embodiment having carried out detailed explanation.Yet, by to the studying carefully of preamble, to the variation of each mode of execution with to increase also be that one of ordinary skill in the art institute is apparent.Being intended that all these variations and increasing of claimant all dropped in the scope that the utility model claim protects.
Similar numbering refers to similar element in the whole text.For the purpose of clear, the situation that some line, layer, element, parts or feature are amplified may be arranged in the accompanying drawings.
Term used herein is only for to be illustrated specific embodiment, and it is not to be intended to the utility model is limited.Unless otherwise defined, all terms used herein (comprising technical term and scientific terminology) are all identical with the utility model one of ordinary skill in the art's understanding.
Claims (6)
1. free wheel device, comprise first swivel becket, and be positioned at first swivel becket and and the second coaxial swivel becket of first swivel becket, it is characterized in that: the outer peripheral surface of described second swivel becket is provided with a plurality of first ratchets, and described first ratchet comprises at the bottom of tooth top, the tooth and extends to curved surface on the second swivel becket outer peripheral surface from tooth top; The inner peripheral surface of described first swivel becket is protruding with a plurality of departing from being used for and the adjutage of first ratchet engagement of its center of circle direction, leaves the deformation space that bends towards first swivel becket for adjutage between described adjutage and first swivel becket.
2. free wheel device according to claim 1 is characterized in that: the free end of described adjutage and first ratchet engagement.
3. free wheel device according to claim 2, it is characterized in that: the position of closing on first ratchet on the outer peripheral surface of described second swivel becket also is provided with second ratchet, and described second ratchet comprises from its tooth top and extends to second curved surface at the bottom of the tooth of first ratchet; The relation of second ratchet and adjutage is as follows: when the free end of adjutage and first ratchet engagement, the sidewall of adjutage is against on second curved surface.
4. free wheel device according to claim 1 is characterized in that: the sidewall of described adjutage be provided with for the lug boss of first ratchet engagement.
5. free wheel device according to claim 1, it is characterized in that: described adjutage is distributed on the inner peripheral surface of described first swivel becket equidistantly, and the quantity of described adjutage is the twice at least of first ratchet.
6. free wheel device according to claim 5, it is characterized in that: the quantity of described first ratchet is three, adjutage is six.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320075025 CN203161895U (en) | 2013-02-18 | 2013-02-18 | Overrun clutch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320075025 CN203161895U (en) | 2013-02-18 | 2013-02-18 | Overrun clutch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203161895U true CN203161895U (en) | 2013-08-28 |
Family
ID=49023081
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320075025 Withdrawn - After Issue CN203161895U (en) | 2013-02-18 | 2013-02-18 | Overrun clutch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203161895U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103104146A (en) * | 2013-02-18 | 2013-05-15 | 安徽江淮汽车股份有限公司 | Overrun clutch |
-
2013
- 2013-02-18 CN CN 201320075025 patent/CN203161895U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103104146A (en) * | 2013-02-18 | 2013-05-15 | 安徽江淮汽车股份有限公司 | Overrun clutch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130828 Effective date of abandoning: 20150325 |
|
| RGAV | Abandon patent right to avoid regrant |