Wheeled mobile device and carrier

Abstract

The present invention discloses a wheeled mobile device and a carrier. The wheeled mobile device includes a support frame, a carrier, and an engagement mechanism for removably engaging the carrier onto the support frame, the engagement mechanism including an engagement member and an engagement groove, the carrier including an engagement rod housed in the engagement groove, the engagement member being movable between a first position where it enters the engagement groove to fix the engagement rod within the engagement groove and a second position where it retracts from the engagement groove so that the engagement rod can be separated from the engagement groove. The carrier includes a first support frame including two short rods and two long rods and a support rod connected between the two long rods, a support frame device including a second support frame including a first connecting rod mounted on the support rods, and a belt guide mechanism connected between the long rods and the first connecting rod and configured to cooperate with a fastening belt assembly to fasten the support frame device to a seat.

Claims

1. A wheeled mobile device, Support frame and A carrier that is detachably mounted on the support frame, The carrier includes an engagement mechanism configured to removably engage with the support frame, The engagement mechanism has an engaged state and an unlocked state, and when the engagement mechanism is in the engaged state, the carrier is locked by the engagement mechanism, and when the engagement mechanism is in the unlocked state, the carrier is separable from the engagement mechanism. The wheeled mobile device is characterized in that the engagement mechanism includes an engagement member and an engagement groove, the carrier includes an engagement rod housed in the engagement groove, and the engagement member is movable between a first position in which it enters the engagement groove and fixes the engagement rod in the engagement groove, and a second position in which it retracts from the engagement groove and the engagement rod becomes detachable from the engagement groove.

2. The wheel-type moving device according to claim 1, wherein the engaging member includes an engaging tongue and an operating part connected to each other, the operating part is operable to move the engaging tongue between a first position in which it enters the engaging groove and a second position in which it retracts from the engaging groove, and one end of the engaging tongue has a guide inclined surface that contacts the engaging rod.

3. The wheeled mobile device according to claim 1, wherein the carrier includes a belt guide mechanism provided on the engagement rod, the engagement mechanism is further provided with a limiting notch communicating with the engagement groove, and the belt guide mechanism is positioned within the limiting notch.

4. The engaging rod is movable within the engaging groove between a third position approaching the engaging tongue and a fourth position away from the engaging tongue. When the engaging rod is in the third position, the engaging member fixes the engaging rod within the engaging groove. When the engaging rod is in the fourth position, the engaging rod is separated from the engaging member. The wheel-type mobile device according to claim 2, characterized in that when the engaging member is in the first position, the distance between the engaging tongue and the side wall of the engaging groove is greater than the width of the engaging rod.

5. A wheel assembly including a front wheel assembly and a rear wheel assembly, A frame including a front rod member connected to the front wheel assembly and a rear rod member connected to the rear wheel assembly, having an unfolded state and a folded state, wherein one of the front rod member and the rear rod member is pivotably connected to the support frame to form a first pivot point, and the front rod member and the rear rod member are pivotably connected to each other to form a second pivot point, further comprising: As an option, the first locking mechanism, installed between the frame and the support frame, further includes a first fixed base and a second fixed base pivotably connected to each other, forming a third pivot point, wherein the first fixed base is fixed to the front rod member and the other of the rear rod member, and the second fixed base is pivotably connected to the support frame to form a fourth pivot point. The wheeled mobile device according to claim 1, characterized in that the first locking mechanism has a locked state and an unlocked state, when the first locking mechanism is in the locked state, the first fixed base and the second fixed base are fixed relative to each other and the frame can be locked in the unfolded state, and when the first locking mechanism is in the unlocked state, the first fixed base and the second fixed base are rotatable relative to each other and the frame can be switched between the unfolded state and the folded state.

6. The wheeled mobile device according to claim 5, wherein the first locking mechanism further includes a first locking member, a first locking groove, a second locking groove, and a release member, the first locking groove being provided on the first fixed base, the second locking groove being provided on the second fixed base, and when the first locking mechanism is in the locked state, the first locking member is simultaneously locked by engaging with both the first locking groove and the second locking groove, the release member is movably mounted on the first fixed base, and the release member can be driven to separate the first locking member from either the first locking groove or the second locking groove in order to convert the first locking mechanism from the locked state to the unlocked state.

7. The first locking mechanism further includes a first elastic member whose ends abut against the first locking member and the second fixed base, respectively, the first elastic member causing the first locking member to tend to move toward the first locking groove, and / or The wheel-type mobile device according to claim 6, characterized in that the unlocking member includes a pressing portion and an extruding portion connected to each other, the first fixed base is provided with a sliding groove for slidably housing the pressing portion and a limiting hole corresponding to the extruding portion, and the extruding portion contacts the first locking member after passing through the limiting hole.

8. The wheeled mobile device according to claim 5, wherein the frame further includes a first transition member and a second transition member fixed to the support frame, one of the front rod member and the rear rod member is pivotably connected to the first transition member, the other of the front rod member and the rear rod member is fixed to the first fixed base, and the second fixed base is pivotably connected to the second transition member.

9. The frame further includes a pivot base, the front rod member and the rear rod member are pivotably connected to each other by the pivot base, and / or The wheeled mobile device according to claim 5, wherein the frame includes two front rod members and two rear rod members, the two front rod members are provided on the outside of the two rear rod members, and the first locking mechanism is provided on the front rod members.

10. The wheel assembly is An adapting base connected to the front rod member or the rear rod member, A universal shaft fixed to the aforementioned adapting base and equipped with a gear plate, A wheel seat pivotably connected to the aforementioned universal shaft, A caster pivotably connected to the wheel seat, A brake assembly configured to restrict the rotation of the wheel seat relative to the adapting base and to restrict the rotation of the caster relative to the wheel seat, The wheeled mobile device according to claim 5, wherein the brake assembly includes a pedal and a brake elastic piece pivotably connected to the wheel seat, the brake elastic piece includes engaging teeth and a brake portion, the pedal drives the engaging teeth to mesh with the gear plate to restrict the rotation of the wheel seat relative to the adapting base, and / or the pedal drives the brake portion to contact the caster to restrict the rotation of the caster relative to the wheel seat.

11. It is a career, A support frame device comprising a first support frame and a second support frame connected to each other, wherein the first support frame includes two sequentially connected short rods and two long rods, and a support rod connected between the two long rods, and the second support frame comprises a support frame device comprising a first connecting rod installed on the support rods, It includes at least one belt guide mechanism connected between the long rod and the first connecting rod, The carrier is characterized in that the belt guide mechanism is configured to cooperate with a fixing belt assembly to secure the support frame device to the seat.

12. Two of the first connecting rods are provided, and the two first connecting rods are installed on the support rod at intervals along the length of the support rod. The second support frame further includes a second connecting rod connected between the two first connecting rods, and / or The carrier according to claim 11, wherein the two belt guide mechanisms are each installed at both ends of the support rod, and the two belt guide mechanisms are each connected between the corresponding first connecting rod and the corresponding long rod.

13. The aforementioned restraint belt assembly includes a restraint belt assembly that includes at least one restraint belt, The carrier according to claim 12, wherein the belt guide mechanism includes a clamp body comprising an upper housing and a lower housing connected to the upper housing, the upper housing and the lower housing define a through passage having a first port and a second port for the restraint belt to pass through, the upper housing is fixed to the first connecting rod and the lower housing is fixed to the long rod.

14. In the two belt guide mechanisms installed at both ends of the support rod, when the restraint belt extends through the belt guide mechanism away from the seat backrest, one end of the restraint belt passes through the first port and extends around the outside of the first support frame, and the other end of the restraint belt passes through the second port and extends from the second support frame and the lower side of the support rod, or The carrier according to claim 11, characterized in that when the restraint belt extends through the two belt guide mechanisms installed at both ends of the support rod, the restraint belt extends through between the second support frame and the carrying portion of the cover, and extends along the guiding direction of the second connecting rod, and both ends of the restraint belt extend from the outside of the first support frame, passing through the two belt guide mechanisms.

15. A wheeled mobile device, The wheeled mobile device includes the carrier described in any one of claims 11 to 14. moreover, A wheel assembly including a front wheel assembly and a rear wheel assembly, It includes a front support frame connected to the front wheel assembly and a rear support frame connected to the rear wheel assembly, The front support frame and the rear support frame are pivotally connected to each other so as to allow switching between an unfolded state and a folded state of the frame, and the frame is provided with an engagement groove. The carrier is equipped with a second locking mechanism including a second locking member, the second locking member is movable on the carrier and has a locked position and an unlocked position. A wheeled mobile device characterized in that, when the carrier is mounted on the frame and the second locking member is in the locked position, the second locking member enters the engagement groove and locks the carrier and the frame, and when the second locking member is in the unlocked position, the second locking member retracts from the engagement groove and releases the lock between the carrier and the frame.

16. The second locking mechanism is installed on the support rod of the support frame device and / or When the frame is in the deployed state, the carrier restricts the frame from switching to the folded state by a removable connection to the frame, the upper end of the front support frame and the upper end of the rear support frame are separated from each other, and the lower end of the front support frame and the lower end of the rear support frame are separated from each other. The wheeled mobile device according to claim 15, characterized in that when the frame is in the folded state, the carrier is separated from the frame, the upper end of the front support frame and the upper end of the rear support frame are close to each other, and the lower end of the front support frame and the lower end of the rear support frame are close to each other.

17. The wheeled mobile device according to claim 15, wherein the second locking mechanism further includes a drive member operably connected to the second locking member, the drive member being movable on the carrier and having a first position and a second position, the second locking member being in the locked position when the drive member is in the first position, and the second locking member being in the unlocked position when the drive member is in the second position.

18. The frame includes at least one support base, each of which is provided with a support groove, and the engagement groove is provided in the support base and communicates with the support groove. The wheeled mobile device according to claim 15, characterized in that when the carrier is mounted on the frame, the support rod is engaged in the support groove, the second locking member enters the engagement groove when the second locking member is in the locked position, and the second locking member retracts from the engagement groove when the second locking member is in the unlocked position.

19. The wheeled mobile device according to claim 18, wherein the support base includes connecting sections, support sections, and limiting sections that are sequentially connected and installed at an angle, the connecting sections, support sections, and limiting sections form the support groove, the connecting sections are fixed on the frame, and the engagement groove is provided on the side of the limiting section facing the support groove.

20. The wheeled mobile device further includes an interlocking mechanism, the interlocking mechanism being pivotably connected between the front support frame and the rear support frame, and the interlocking mechanism having an extended state and a folded state, and when the interlocking mechanism switches between the extended state and the folded state, the frame moves in conjunction with the operation of the interlocking mechanism and switches between the unfolded state and the folded state. The wheeled mobile device according to claim 15, wherein the interlocking mechanism includes a rotating member and an interlocking member that are pivotably connected to each other, and one of the first ends of the rotating member and the first end of the interlocking member is pivotably connected to the front support frame and the other is pivotably connected to the rear support frame.

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