CN211885329U

CN211885329U - Self-driven wheel

Info

Publication number: CN211885329U
Application number: CN202020460607.9U
Authority: CN
Inventors: 孙明宝
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-04-01
Filing date: 2020-04-01
Publication date: 2020-11-10
Anticipated expiration: 2030-04-01

Abstract

The utility model discloses a self-driving wheel mainly relates to a wheel structure. Comprises a wheel frame and a wheel body; the device also comprises a self-driving mechanism; the self-driving mechanism comprises a ratchet shaft, a telescopic mechanism and a rack; the ratchet shaft is a mandrel of the wheel body, a gear meshed with the rack is arranged on an outer wheel ring of the ratchet shaft, the mandrel of the ratchet shaft can reciprocate in a certain direction through a telescopic mechanism, and the telescopic mechanism and the rack are fixed with the wheel body. The beneficial effects of the utility model reside in that: the self-propelled pedal scooter can be driven by itself by using the gravity of the self as a power source of driving force during running, and is more labor-saving compared with the wheel structure of a common roller skate and a scooter. And the self-propelled process does not use any additional power source.

Description

Self-driven wheel

Technical Field

The utility model relates to a wheel structure specifically is a self-propelled wheel.

Background

In the prior art, the wheels of the travel tools or the sports entertainment tools such as roller skating, scooter and the like can only provide power drive in a leg-stepping running mode. The wheel structure of whole device does not have the ability of driving by oneself, if want to carry out the electric drive through external drive can only through installation in-wheel motor on the wheel, but this not only has lost the skidding, the enjoyment of playing of scooter self falls into pure instrument of riding instead of walk, and the cost also increases moreover.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a self-driving wheel, it can use the gravity of self as the power supply of drive power to drive by oneself between pedal advancing, compares ordinary skidding, the more laborsaving of the wheel structure of scooter. And the self-propelled process does not use any additional power source.

The utility model discloses a realize above-mentioned purpose, realize through following technical scheme:

a self-driven wheel comprises a wheel frame and a wheel body; the device also comprises a self-driving mechanism; the self-driving mechanism comprises a ratchet shaft, a telescopic mechanism and a rack; the ratchet shaft is a mandrel of the wheel body, a gear meshed with the rack is arranged on an outer wheel ring of the ratchet shaft, the mandrel of the ratchet shaft can reciprocate in a certain direction through a telescopic mechanism, and the telescopic mechanism and the rack are fixed with the wheel body.

The telescopic mechanism comprises a telescopic cylinder and a first return spring; the telescopic cylinder is fixed on the wheel carrier, the side wall of the lower part of the telescopic cylinder is provided with a notch, a first reset spring is positioned in the telescopic cylinder, the central shaft of the ratchet shaft is matched with the width of the notch, the end part of the central shaft of the ratchet shaft is provided with a first bearing, the first bearing is positioned in the telescopic cylinder, a rotation limiting mechanism is arranged in the telescopic cylinder, the outer ring of the first bearing limits the rotating rod through the rotation limiting mechanism, the lower part of the first reset spring is connected with the central shaft, and the upper part of the first reset spring is connected with the top wall inside the telescopic cylinder.

The rotation limiting mechanism comprises a T-shaped sliding groove arranged on the side wall inside the telescopic cylinder and a T-shaped sliding block arranged on the outer ring of the first bearing, and the T-shaped sliding block is limited in the T-shaped sliding groove and slides along the T-shaped sliding groove.

The telescopic mechanism comprises a fixed cylinder, a telescopic rod and a second reset spring, the fixed cylinder is fixed on the wheel carrier, the telescopic rod and the fixed cylinder realize telescopic sliding, a second bearing is arranged at the end part of a central shaft of the ratchet shaft, the lower end of the telescopic rod is fixed with the outer ring of the second bearing, and the second reset spring is sleeved on the telescopic rod below the fixed cylinder.

Contrast prior art, the beneficial effects of the utility model reside in that:

when people advance, the feet are lifted to fall to the lowest point, the telescopic mechanisms on the wheels are compressed, and meanwhile, the racks drive the gears on the ratchet shafts to drive the central shafts of the ratchet shafts to rotate, so that the wheels are driven to advance forwards. In the process that the foot lifts up from the lowest point, the telescopic mechanism restores the initial state under the action of the return spring due to losing the pressure of the body weight, the rack also restores the initial state in the process, the rack can enable the gear to rotate in the reverse direction in the process of restoring to the initial state, and the ratchet shaft is in one-way transmission, so that only the outer ring of the ratchet shaft rotates in the reverse direction in the process of rotating in the reverse direction, and the central shaft of the ratchet shaft cannot rotate in the reverse direction. Therefore, by adopting the innovative structure as the wheel structure, namely adding a self-driven driving device on the basis of the existing wheel structure, the self-driven scooter can drive by self by using the gravity of the self as a power source of the driving force during the running of the pedals, and is more labor-saving compared with the wheel structure of a common roller skate or scooter. And the self-propelled process does not use any additional power source.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic view of a partial structure of embodiment 1 of the present invention.

Fig. 3 is a schematic view of a partial structure of embodiment 1 of the present invention.

Fig. 4 is a schematic view of a partial structure of embodiment 2 of the present invention.

Fig. 5 is a schematic structural view of the telescopic mechanism in embodiment 1 of the present invention.

Fig. 6 is a schematic view of a partial structure of the telescopic mechanism in embodiment 1 of the present invention.

Reference numerals shown in the drawings:

1. a wheel carrier; 2. a wheel body; 3. a ratchet shaft; 4. a rack; 5. an outer wheel ring; 6. a gear; 7. a central shaft; 8. a telescopic cylinder; 9. a first return spring; 10. a notch; 11. a first bearing; 12. a T-shaped chute; 13. a T-shaped slider; 14. a fixed cylinder; 15. a telescopic rod; 16. a second return spring; 17. a second bearing.

Detailed Description

The present invention will be further described with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teachings of the present invention, and these equivalents also fall within the scope defined in the present application.

Example 1:

the utility model relates to a self-driven wheel, the main structure of which comprises a wheel frame 1 and a wheel body 2; the device also comprises a self-driving mechanism; the self-driving mechanism comprises a ratchet shaft 3, a telescopic mechanism and a rack 4; the ratchet shaft 3 is a mandrel of the wheel body 2, a gear 6 meshed with the rack 4 is arranged on an outer wheel ring 5 of the ratchet shaft 3, a central shaft 7 of the ratchet shaft 3 can reciprocate in a certain direction through a telescopic mechanism, and the telescopic mechanism and the rack 4 are fixed with the wheel body 2.

The telescopic mechanism comprises a telescopic cylinder 8 and a first return spring 9; telescopic tube 8 is fixed on wheel carrier 1, telescopic tube 8 lower part lateral wall is opened there is notch 10, first reset spring 9 is located telescopic tube 8, the center pin 7 and the notch 10 width of ratchet axle 3 suit, the center pin 7 tip of ratchet axle 3 is equipped with first bearing 11, first bearing 11 is located telescopic tube 8, be equipped with limited rotation mechanism in the telescopic tube 8, the outer lane of first bearing 11 passes through limited rotation mechanism and restricts the dwang, first reset spring 9 lower part is connected with center pin 7, first reset spring 9 upper portion is connected with telescopic tube 8 inside roof. The rotation limiting mechanism comprises a T-shaped sliding groove 12 arranged on the inner side wall of the telescopic cylinder 8 and a T-shaped sliding block 13 arranged on the outer ring of the first bearing 11, wherein the T-shaped sliding block 13 is limited in the T-shaped sliding groove 12 and slides along the T-shaped sliding groove 12.

Example 1 principle:

when a person moves forward, in the process that feet are lifted to fall to the lowest point, the telescopic cylinder 8, the rack 4 and the whole wheel carrier 1 move downwards, in the process that the telescopic cylinder 8 moves downwards, the first return spring 9 in the telescopic cylinder 8 is compressed, and the notch 10 on the side wall of the lower part of the telescopic cylinder 8 slides downwards along the central shaft 7. The T-shaped sliding block 13 is limited in the T-shaped sliding groove 12 and slides along the T-shaped sliding groove 12, and therefore the outer ring of the first bearing 11 is limited to rotate in the sliding process. The rack 4 can form meshing transmission with the gear 6 in the downward movement process, so that the gear 6 rotates, the gear 6 rotates to drive the central shaft 7 of the ratchet shaft 3 to rotate, the wheel body 2 is driven to move forwards, and the outer ring of the first bearing 11 does not rotate and the inner ring of the first bearing 11 rotates along with the rotation when the central shaft 7 rotates, so that the realization of a mechanical movement structure is ensured.

In the process that the foot is lifted up from the lowest point, the telescopic cylinder 8 restores the initial state under the action of the first return spring 9 due to the loss of the pressure of the weight of the human body, the rack 4 also restores the initial state in the process, the gear 6 can rotate reversely in the process that the rack 4 restores the initial state, and the ratchet shaft 3 is in one-way transmission, so that only the outer ring 5 of the ratchet shaft 3 rotates reversely in the reverse rotation process, the central shaft 7 of the ratchet shaft 3 cannot rotate reversely, and the central shaft 7 of the ratchet shaft 3 also rotates in the original forward direction under the inertia effect. The whole ratchet shaft 3 is similar to a rear wheel shaft of a bicycle in structure, power is provided for the bicycle when the bicycle is positively pedaled, and the bicycle cannot be influenced by movement when the bicycle is reversely pedaled.

Example 2:

the difference from embodiment 1 is the telescoping mechanism in embodiment 2:

the telescopic mechanism comprises a fixed cylinder 14, a telescopic rod 15 and a second return spring 16, the fixed cylinder 14 is fixed on the wheel carrier 1, the telescopic rod 15 and the fixed cylinder 14 realize telescopic sliding, a second bearing 17 is arranged at the end part of the central shaft 7 of the ratchet shaft 3, the lower end of the telescopic rod 15 is fixed with the outer ring of the second bearing 17, and the second return spring 16 is sleeved on the telescopic rod 15 below the fixed cylinder 14.

Example 2 principle:

when a person moves forward, the feet are lifted to fall to the lowest point, the fixed cylinder 14, the rack 4 and the whole wheel carrier 1 move downwards, in the downward movement process of the fixed cylinder 14, the fixed cylinder 14 compresses the second return spring 16 on the telescopic rod 15, the telescopic rod 15 retracts into the fixed cylinder 14, the bottom of the telescopic rod 15 is fixed with the outer ring of the second bearing 17, and therefore the outer ring of the second bearing 17 is guaranteed to be limited to rotate. The rack 4 can form meshing transmission with the gear 6 in the downward movement process, so that the gear 6 rotates, the gear 6 rotates to drive the central shaft 7 of the ratchet shaft 3 to rotate, the wheel body 2 is driven to move forwards, and the outer ring of the second bearing 17 does not rotate and the inner ring of the second bearing 17 rotates along with the rotation when the central shaft 7 rotates, so that the realization of a mechanical movement structure is ensured.

In the process of lifting the foot from the lowest point, the fixed barrel 14 restores the initial state under the action of the second return spring 16 due to the loss of the pressure of the body weight, the telescopic rod 15 extends out of the fixed barrel 14 again under the action of the elastic force, the rack 4 also restores the initial state in the process, the gear 6 can rotate reversely when the rack 4 restores the initial state, and the ratchet shaft 3 is in one-way transmission, so that only the outer wheel ring 5 of the ratchet shaft 3 rotates reversely in the reverse rotation process, but the central shaft 7 of the ratchet shaft 3 cannot rotate reversely, and under the action of inertia, the central shaft 7 of the ratchet shaft 3 also rotates in the original forward direction. The whole ratchet shaft 3 is similar to a rear wheel shaft of a bicycle in structure, power is provided for the bicycle when the bicycle is positively pedaled, and the bicycle cannot be influenced by movement when the bicycle is reversely pedaled.

In summary, the two technical schemes and the using methods of the embodiment 1 and the embodiment 2 are as follows:

through this kind of innovative structure as wheel structure, increased a self-driven drive arrangement on current wheel structure's basis equivalently, can use self gravity as the power supply of drive power to carry out the self-driving between pedal marcing, compare ordinary skidding, the wheel structure of scooter laborsaving more. And the self-propelled process does not use any additional power source.

Claims

1. A self-driven wheel comprises a wheel frame (1) and a wheel body (2); the method is characterized in that: the device also comprises a self-driving mechanism; the self-driving mechanism comprises a ratchet shaft (3), a telescopic mechanism and a rack (4);

the ratchet shaft (3) is a mandrel of the wheel body (2), a gear (6) meshed with the rack (4) is arranged on an outer wheel ring (5) of the ratchet shaft (3), the center shaft (7) of the ratchet shaft (3) can reciprocate in a certain direction through a telescopic mechanism, and the telescopic mechanism and the rack (4) are fixed with the wheel body (2).

2. A self-propelled wheel according to claim 1, wherein: the telescopic mechanism comprises a telescopic cylinder (8) and a first return spring (9); telescopic cylinder (8) are fixed on wheel carrier (1), open telescopic cylinder (8) lower part lateral wall has notch (10), first reset spring (9) are located telescopic cylinder (8), center pin (7) and notch (10) width phase-adaptation of ratchet axle (3), center pin (7) tip of ratchet axle (3) is equipped with first bearing (11), first bearing (11) are located telescopic cylinder (8), be equipped with limited rotation mechanism in telescopic cylinder (8), the outer lane of first bearing (11) passes through limited rotation mechanism restriction and rotates, first reset spring (9) lower part is connected with center pin (7), first reset spring (9) upper portion and telescopic cylinder (8) roof internal connection.

3. A self-propelled wheel according to claim 2, wherein: the rotation limiting mechanism comprises a T-shaped sliding groove (12) formed in the inner side wall of the telescopic cylinder (8) and a T-shaped sliding block (13) arranged on the outer ring of the first bearing (11), wherein the T-shaped sliding block (13) is limited in the T-shaped sliding groove (12) and slides along the T-shaped sliding groove (12).

4. A self-propelled wheel according to claim 1, wherein: telescopic machanism includes a fixed section of thick bamboo (14), telescopic link (15) and second reset spring (16), a fixed section of thick bamboo (14) is fixed on wheel carrier (1), telescopic link (15) and a fixed section of thick bamboo (14) realize flexible slip, center pin (7) tip of ratchet axle (3) is equipped with second bearing (17), telescopic link (15) lower extreme is fixed with the outer lane of second bearing (17), second reset spring (16) cover is on telescopic link (15) of a fixed section of thick bamboo (14) below.