CN212373592U - Crank structure of parking frame - Google Patents

Abstract

The utility model discloses a jiffy stand crank structure that spike was packed up can not be hindered to the crank, including rotating axis and the well axle sleeve that sets up on the frame, set up at the crank at axis both ends, rotate respectively and set up pedal on the crank, the slip is provided with the spike on at least one crank, and the one end of spike is located pedal that end and stretches out from the crank, is provided with the location structure who fixes the spike after the spike slides in the crank, still includes the one end of spike and prevents crank pivoted anti-rotation structure when contacting with ground. The utility model has the advantages that: the supporting foot is arranged in the crank and then can freely extend out and retract, so that the supporting foot is prevented from being blocked by the crank, the supporting foot is also hidden, and the appearance is improved.

Description

Crank structure of parking frame

Technical Field

The utility model relates to a jiffy stand crank structure.

Background

Bicycle or electric bicycle at present sets up the spike in the axis rear side, such advantage is, the people of riding just can utilize the left foot to open the spike and prop up the vehicle on the car, but in the time of in-service use, because bicycle or electric bicycle are in the slope when parking state, this just leads to, under most circumstances, when packing up the spike, the crank all can block the spike, make the spike can't pack up smoothly, just at this moment need rotate proper position with the crank, just can pack up the spike, it is very inconvenient. This behavior becomes a pain point for the user.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that will solve is: the utility model provides a jiffy stand crank structure that crank can not hinder the spike to pack up.

In order to solve the technical problem, the utility model discloses a technical scheme does: a crank structure of a parking frame comprises a middle shaft and a middle shaft sleeve which are rotatably arranged on a frame, cranks arranged at two ends of the middle shaft, pedals which are respectively rotatably arranged on the cranks, supporting feet which are arranged on at least one crank in a sliding mode, one ends of the supporting feet extend out from the ends, located on the pedals, of the cranks, positioning structures which are used for fixing the supporting feet after the supporting feet slide are arranged in the cranks, and anti-rotation structures which are used for preventing the cranks from rotating when one ends of the supporting feet are in contact with the ground.

The crank is provided with a slide way, the supporting feet are positioned in the slide way, the crank is provided with a guide groove, the positioning structure comprises a first spring for pushing the supporting feet to retract into the crank, a positioning rod arranged on the supporting feet and moving along with the supporting feet and a turning channel arranged at the end, located at the pedal, of the guide groove, the first spring is positioned in the slide way, the positioning rod is positioned in the guide groove, and one end of the positioning rod stretches out of the crank.

Set up the slide on the crank, the spike is located the slide, set up the guide way on the crank, location structure is including promoting the first spring of spike indentation crank, the setting is located pedal locating hole that holds and the diameter is greater than the locating hole of guide way width and sets up the locating lever that moves along with the spike on the spike, the locating lever is located the guide way, and the one end of locating lever stretches out the crank, that end that the locating lever is located the slide is provided with the lug of card income locating hole, be provided with the second spring that pushes the lug into the locating hole between lug and the spike.

Set up the slide on the crank, the spike is located the slide, sets up the guide way on the crank, location structure is including setting up the locating hole that the diameter at guide way both ends is greater than the guide way width and setting up the locating lever that moves along with the spike on the spike, the locating lever is located the guide way, and the crank is stretched out to the one end of locating lever, that end that the locating lever is located the slide is provided with the lug of card income locating hole, be provided with the second spring that pushes the lug into the locating hole between lug and the spike.

Set up the slide on the crank, the spike is located the slide, sets up the guide way on the crank, location structure is including setting up the locating hole that is greater than the guide way width at guide way both ends and diameter and setting up the locating lever that moves along with the spike on the spike, the locating lever is located the guide way, and the crank is stretched out to the one end of locating lever, that end that the locating lever is located the slide is provided with the lug of card income locating hole, be provided with the second spring that pushes the lug into the locating hole between lug and the spike.

The anti-rotation structure comprises a groove arranged on the middle shaft sleeve and a fixture block arranged on the crank, one end of the fixture block is matched with the groove, and the other end of the fixture block extends into the crank to be matched with the end part of the supporting foot and is clamped into the groove or separated from the groove along with the movement of the supporting foot.

The anti-rotation structure comprises a first stop block arranged on the middle shaft sleeve and a second stop block arranged on the crank and matched with the first stop block, one end of the second stop block is matched with the first stop block, and the other end of the second stop block extends into the crank and is matched with the end part of the supporting foot and is abutted against or separated from the first stop block along with the movement of the supporting foot.

The anti-rotation structure comprises a groove arranged on the middle shaft sleeve and a clamping block arranged on the crank and matched with the groove.

The anti-rotation structure comprises a first stop block arranged on the middle shaft sleeve and a second stop block arranged on the crank and matched with the first stop block.

The utility model has the advantages that: the supporting foot is arranged in the crank and then can freely extend out and retract, so that the supporting foot is prevented from being blocked by the crank, the supporting foot is also hidden, and the appearance is improved.

Drawings

Fig. 1 is a cross-sectional view of a first embodiment of the inventive jiffy stand crank structure;

FIG. 2 is a diagrammatic front view of the crank of FIG. 1;

3 FIG. 3 3 3 is 3 a 3 cross 3- 3 sectional 3 view 3 A 3- 3 A 3 of 3 the 3 first 3 anti 3- 3 rotation 3 structure 3 of 3 FIG. 3 1 3; 3

FIG. 4 is a cross-sectional view of a second anti-rotation feature of FIG. 1;

fig. 5 is a cross-sectional view of a second embodiment of the inventive jiffy stand crank structure;

FIG. 6 is a diagrammatic front view of the crank of FIG. 5;

fig. 7 is a sectional view of a third embodiment of the inventive jiffy stand crank structure;

FIG. 8 is a diagrammatic front view of the crank of FIG. 7;

FIG. 9 is a perspective view of FIG. 7

Fig. 10 is a cross-sectional view of a fourth embodiment of the inventive jiffy stand crank structure;

fig. 11 is a schematic front view of the crank of fig. 10.

In the figure: 1. a middle shaft; 2. a middle shaft sleeve; 3. a crank; 4. pedaling; 5. a brace; 6. a slideway; 7. a guide groove; 8. a first spring; 9. positioning a rod; 10. a turning channel; 11. a groove; 12. a clamping block; 13. a second spring; 14. a third spring; 15. a first stopper; 16. a second stopper; 17. a bump; 18. a first positioning hole; 19. and a second positioning hole.

Detailed Description

The following describes in detail a specific embodiment of the present invention with reference to the drawings.

As shown in fig. 1 to 4, a first embodiment of jiffy stand crank structure, a jiffy stand crank structure, including rotating axis 1 and the well axle sleeve 2 that sets up on the frame, set up the crank 3 at axis 1 both ends, rotate respectively and set up pedal 4 on the crank, it is provided with spike 5 to slide on at least one crank 3, and the one end that the crank 3 is located pedal 4 of spike 5 stretches out, is provided with the location structure who fixes spike 5 after spike 5 slides in the crank 3, still includes the one end of spike 5 and prevents crank 3 pivoted anti-rotation structure when contacting with ground. Set up slide 6 on the crank 3, the spike 5 is located slide 6, set up guide way 7 on the crank 3, guide way 7 is located the vehicle outside, location structure is including promoting the first spring 8 of spike 5 indentation crank 3, the setting is at the locating lever 9 that spike 5 moved together with spike 5 on spike 5 and the setting is located the passageway 10 that turns round (shown in fig. 2) that pedal 4 that is located at guide way 7, first spring 8 is located slide 6, locating lever 9 is located guide way 7, and the one end of locating lever 9 stretches out crank 3. The anti-rotation structure can adopt the following structure, as shown in fig. 3, a first anti-rotation structure comprises a groove 11 formed in the middle shaft sleeve 2 and a fixture block 12 arranged on the crank 3, one end of the fixture block 12 is matched with the groove 11, the fixture block 12 can be independently arranged on the crank 3 in actual production, for example, the fixture block 12 is installed on the crank 3 in a transition fit mode, then the fixture block 12 is pressed into the groove 11 for matching and positioning, and the fixture block 12 can be prevented from being clamped into or separated from the groove 11 under the action of gravity of the fixture block 12. However, this is troublesome and requires the rider to bend down. In order to make the fixture block 12 and the supporting foot 5 link, the other end of the fixture block 12 extends into the crank 3 to match with the end of the supporting foot 5 and is clamped into the groove 11 or separated from the groove 11 along with the movement of the supporting foot 5. The specific fixture block 12 and the supporting foot 5 can be connected through a spring, namely, when the supporting foot 5 extends out, the fixture block 12 is driven to press downwards and be clamped into the groove 11, and when the supporting foot 5 retracts into the crank 3 and reaches the highest point, the fixture block 12 is just ejected out of the groove 11. Of course, in the actual production, it can also be designed that the latch 12 is connected with the inner wall of the top of the crank 3 through the third spring 14 as shown in fig. 1, that is, the action of latching the latch 12 into the groove 11 is realized by the third spring 14, and the action of disengaging the latch 12 from the groove 11 is realized by the upward propping of the supporting foot 5. To realize the above function, as long as it is satisfied that the elasticity of the first spring 8 is large enough, that is, the supporting foot 5 can be ensured to be separated from the groove 11 and the block 12 after being completely retracted into the crank 3 under the action of the first spring 8, otherwise, the other end of the guiding groove 10 also needs to be provided with the turning channel 10 to position the supporting foot 5, that is, the block 12 and the groove 11 are ensured to be separated when the supporting foot 5 is positioned at a high point. The anti-rotation structure may also adopt another mode, as shown in fig. 4, the second anti-rotation structure includes a first stopper 15 disposed on the middle shaft sleeve 2 and a second stopper 16 disposed on the crank 3 and engaged with the first stopper 15, one end of the second stopper 16 is engaged with the first stopper 15, and the other end extends into the crank 3 to be engaged with the end of the arm brace 5 and abuts against or is disengaged from the first stopper 15 along with the movement of the arm brace 5. The second stopper 16 of the second anti-rotation structure is mounted in the same manner as the first stopper 12 of the first anti-rotation structure, and will not be described herein again. The difference between the two anti-rotation structures is that: the fixture block 12 and the groove 11 in the first anti-rotation structure are difficult to machine, but the anti-rotation effect is good; the first stop block 15 and the second stop block 16 in the second anti-rotation structure are convenient to process, and the first stop block 15 and the second stop block 16 are only abutted, so that the arm brace 5 is required to be inclined instead of being perpendicular to the ground, and the non-rotation of the arm brace 5 is realized by utilizing the self gravity of a vehicle and the lever principle.

As shown in fig. 5 and 6, a second embodiment of the present invention: the utility model provides a jiffy stand crank structure, is including rotating axis 1 and well axle sleeve 2 that sets up on the frame, sets up the crank 3 at axis 1 both ends, rotates respectively and sets up pedal 4 on crank 3, slide on at least one crank 3 and be provided with spike 5, the one end of spike 5 stretches out from the end that crank 3 is located pedal 4, is provided with in the crank 3 and fixes the location structure of spike 5 after spike 5 slides, still includes the one end of spike 5 and prevents crank 3 pivoted anti-rotation structure when contacting with ground. Set up slide 6 on the crank 3, the spike 5 is located slide 6, set up guide way 7 on the crank 3, location structure is including promoting the first spring 8 in 5 indents crank 3 of spike, the setting is located pedal 4 that of foot at guide way 7 and the diameter is greater than the second locating hole 19 of guide way 7 width and sets up the locating lever 9 that moves along with spike 5 on spike 5, locating lever 9 is located guide way 7, and the one end of locating lever 9 stretches out crank 3, that end that locating lever 9 is located slide 6 is provided with the lug 17 of card income second locating hole 19, be provided with the second spring 13 that pushes into lug 17 second locating hole 19 between lug 17 and spike 5. The utility model discloses anti-rotation structure among the second kind of embodiment with the utility model discloses the same that first kind of embodiment adopted, no longer give unnecessary details here.

As shown in fig. 7, 8, 9, the utility model discloses a third kind of embodiment, a jiffy stand crank structure, including rotating axis 1 and the well axle sleeve 2 that sets up on the frame, set up the crank 3 at axis 1 both ends, rotate respectively and set up pedal 4 on crank 3, it is provided with spike 5 to slide on at least one crank 3, and the one end that the crank 3 is located pedal 4 of spike 5 stretches out, is provided with the location structure who fixes spike 5 after spike 5 slides in the crank 3, still includes the one end of spike 5 and prevents crank 3 pivoted rotation-proof structure when contacting with ground. Set up slide 6 on the crank 3, the spike 5 is located slide 6, set up guide way 7 on the crank 3, location structure is including setting up locating hole (first locating hole 18 and second locating hole) that the diameter at guide way 7 both ends is greater than the width of guide way 7 and setting up the locating lever 9 that moves along with spike 5 on spike 5, locating lever 9 is located guide way 7, and the crank 3 is stretched out to the one end of locating lever 9, that end that locating lever 9 is located slide 6 is provided with the lug 17 of card income locating hole, be provided with the second spring 13 that pushes away lug 17 into the locating hole between lug 17 and the spike 5. The utility model discloses anti-rotation structure among the third kind of embodiment with the utility model discloses the same that first kind of embodiment adopted, no longer give unnecessary details here. The utility model discloses the third embodiment with the utility model discloses the difference of second embodiment only lies in, one is that the one end of guide way 7 sets up the locating hole, one is that the both ends of guide way 7 set up the locating hole, in actual production, if first spring 8 is when reseing, its self elasticity can make fixture block 12 break away from recess 11, perhaps second dog 16 breaks away from first dog 15, so set up a locating hole can, if not go, so set up two locating holes, utilize first locating hole 18 to realize fixture block 12 and break away from recess 11, perhaps second dog 16 breaks away from first dog 15. The utility model discloses the first embodiment set up a passageway 10 that turns round, perhaps two passageway 10 that turns round, perhaps the mode that the locating hole and the passageway 10 that turns round combine is this thinking.

As shown in fig. 10 and 11, the fourth embodiment of the present invention is a crank structure of a parking frame, which comprises a central shaft 1 and a central shaft sleeve 2 rotatably disposed on a frame, a crank 3 disposed at two ends of the central shaft 1 and a pedal 4 rotatably disposed on the crank 3, a supporting foot 5 slidably disposed on at least one crank 3, one end of the supporting foot 5 extending from the end of the crank 3 located on the pedal 4, and a positioning structure disposed in the crank 3 and used for positioning the supporting foot 5 after the supporting foot 5 slides, wherein the positioning structure further comprises an anti-rotation structure for preventing the crank 3 from rotating when one end of the supporting foot 5 contacts with the ground. Set up slide 6 on the crank 3, the spike 5 is located slide 6, set up guide way 7 on the crank 3, location structure is including setting up locating hole (first locating hole 18 and second locating hole 19) that are greater than the width of guide way 7 at guide way 7 both ends and diameter and setting up the locating lever 9 that moves along with spike 5 on spike 5, locating lever 9 is located guide way 7, and the crank 3 is stretched out to the one end of locating lever 9, that end that locating lever 9 is located slide 6 is provided with the lug 17 of card income locating hole, be provided with the second spring 13 that pushes away lug 17 into the locating hole between lug 17 and the spike 5. The utility model discloses the fourth embodiment with the utility model discloses the difference of third embodiment only lies in, does not have the reset action of first spring 8, just can only utilize first locating hole 18 and second locating hole to realize the fixed and the indentation crank 3 after of spike 5 contact ground fixed, still guarantees breaking away from of fixture block 12 and recess 11 simultaneously. The utility model discloses anti-rotation structure among the third kind of embodiment with the utility model discloses the same that first kind of embodiment adopted, no longer give unnecessary details here.

The following structure that adopts fixture block 12 and recess 11 with preventing rotating structure, fixture block 12 contacts with spike 5, introduces through the connected mode of third spring 14 between fixture block 12 and the 3 inner walls of crank the utility model discloses four kinds of embodiment's theory of operation

The utility model discloses the theory of operation of a first kind of embodiment, when the person of riding need park, at first adjust crank 3 to perpendicular to ground downwards, then utilize the foot to push down locating lever 9 to passageway 10 that turns round, later with locating lever 9 dial into the passageway 10 that turns round can, stand bar 5 is fixed under the effect of passageway 10 that turns round, and fixture block 12 is gone into recess 11 under the effect of third spring 14 card, prevent that crank 3 from rotating, the vehicle just can not fallen like this. If the supporting foot 5 needs to be folded, the positioning rod 9 is only needed to be pushed into the guide groove 7, the supporting foot 5 automatically resets under the action of the first spring 8, the clamping block 12 moves upwards under the action of the supporting foot 5 to be separated from the groove 11, and the crank 3 and the middle shaft sleeve 2 are restored to rotate.

The utility model discloses the theory of operation of second kind of embodiment with the utility model discloses the theory of operation of first kind of embodiment is roughly the same, and it only lies in distinguishing: when the positioning rod 9 is pressed down to the second positioning hole 19, the protrusion 17 enters the second positioning hole 19 under the action of the second spring 13, so that the support foot 5 is fixed, and when the support foot 5 is folded, the support foot 5 is reset under the action of the first spring 8 as long as the positioning rod 9 is pressed into the crank 3 until the protrusion 17 is separated from the positioning hole.

The utility model discloses the theory of operation of third kind of embodiment with the utility model discloses the theory of operation of second kind of embodiment is roughly the same, and it only lies in distinguishing: can not directly push down locating lever 9, need earlier make lug 17 on the locating lever 9 break away from first locating hole 18, press locating lever 9 inwards earlier, then push down, later the action is the same, and when packing up spike 5, preceding action is the same, after first spring 8 resets, need lift locating lever 9, when locating lever 9 reachs first locating hole 18 department, second spring 13 just pushes lug 17 into first locating hole 18, realize spike 5's fixed, and simultaneously, spike 5 also just pushes away fixture block 12 from recess 11, and can not kick-back under third spring 14's effect.

The utility model discloses the theory of operation of fourth embodiment with the utility model discloses the theory of operation of third embodiment is roughly the same, and it only lies in to distinguish: after the positioning rod 9 is pressed inwards, the supporting leg 5 automatically falls down after the action of the first spring 8 is reduced until the lug 17 is clamped into the second positioning hole 19 under the action of the second spring 13 to fix the supporting leg 5, and when the supporting leg 5 is folded, the positioning rod 9 needs to be lifted upwards after the positioning rod 9 is pressed inwards until the positioning rod 9 reaches the first positioning hole 18.

Above-mentioned 4 kinds of embodiment's working process all can realize the one-legged operation, and is very convenient, designs spike 5 in crank 3 moreover for spike 5 is stealthy, increases the whole aesthetic feeling of vehicle.

Claims (9)

1. Jiffy stand crank structure, including the well axle sleeve of rotation setting on the frame, set up the crank at well axle both ends, rotate respectively and set up pedal, its characterized in that on the crank: the crank is provided with a supporting foot in a sliding mode, one end of the supporting foot extends out of the end, located on the pedal, of the crank, a positioning structure is arranged in the crank and used for positioning the supporting foot after the supporting foot slides, and the crank anti-rotation structure further comprises an anti-rotation structure, wherein one end of the supporting foot is used for preventing the crank from rotating when the supporting foot is in contact with the ground.

2. The jiffy stand crank structure according to claim 1, wherein: the crank is provided with a slide way, the supporting feet are positioned in the slide way, the crank is provided with a guide groove, the positioning structure comprises a first spring for pushing the supporting feet to retract into the crank, a positioning rod arranged on the supporting feet and moving along with the supporting feet and a turning channel arranged at the end, located at the pedal, of the guide groove, the first spring is positioned in the slide way, the positioning rod is positioned in the guide groove, and one end of the positioning rod stretches out of the crank.

3. The jiffy stand crank structure according to claim 1, wherein: set up the slide on the crank, the spike is located the slide, set up the guide way on the crank, location structure is including promoting the first spring of spike indentation crank, the setting is located pedal locating hole that holds and the diameter is greater than the locating hole of guide way width and sets up the locating lever that moves along with the spike on the spike, the locating lever is located the guide way, and the one end of locating lever stretches out the crank, that end that the locating lever is located the slide is provided with the lug of card income locating hole, be provided with the second spring that pushes the lug into the locating hole between lug and the spike.

4. The jiffy stand crank structure according to claim 1, wherein: set up the slide on the crank, the spike is located the slide, sets up the guide way on the crank, location structure is including setting up the locating hole that the diameter at guide way both ends is greater than the guide way width and setting up the locating lever that moves along with the spike on the spike, the locating lever is located the guide way, and the crank is stretched out to the one end of locating lever, that end that the locating lever is located the slide is provided with the lug of card income locating hole, be provided with the second spring that pushes the lug into the locating hole between lug and the spike.

5. The jiffy stand crank structure according to claim 1, wherein: set up the slide on the crank, the spike is located the slide, sets up the guide way on the crank, location structure is including setting up the locating hole that is greater than the guide way width at guide way both ends and diameter and setting up the locating lever that moves along with the spike on the spike, the locating lever is located the guide way, and the crank is stretched out to the one end of locating lever, that end that the locating lever is located the slide is provided with the lug of card income locating hole, be provided with the second spring that pushes the lug into the locating hole between lug and the spike.

6. The jiffy stand crank structure according to any one of claims 2 to 5, wherein: the anti-rotation structure comprises a groove arranged on the middle shaft sleeve and a fixture block arranged on the crank, one end of the fixture block is matched with the groove, and the other end of the fixture block extends into the crank to be matched with the end part of the supporting foot and is clamped into the groove or separated from the groove along with the movement of the supporting foot.

7. The jiffy stand crank structure according to any one of claims 2 to 5, wherein: the anti-rotation structure comprises a first stop block arranged on the middle shaft sleeve and a second stop block arranged on the crank and matched with the first stop block, one end of the second stop block is matched with the first stop block, and the other end of the second stop block extends into the crank and is matched with the end part of the supporting foot and is abutted against or separated from the first stop block along with the movement of the supporting foot.

8. The jiffy stand crank structure according to claim 1, wherein: the anti-rotation structure comprises a groove arranged on the middle shaft sleeve and a clamping block arranged on the crank and matched with the groove.

9. The jiffy stand crank structure according to claim 1, wherein: the anti-rotation structure comprises a first stop block arranged on the middle shaft sleeve and a second stop block arranged on the crank and matched with the first stop block.

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