Foldable mobile vehicle

Abstract

This invention relates to a foldable mobile vehicle, comprising a locking mechanism, a first rod, and a second rod. The locking mechanism has a locked state and an unlocked state. The first rod has a first engaging portion. The second rod is pivotally connected to the first rod and has a second engaging portion that is detachably engaged with the first engaging portion. When the locking mechanism is in the locked state, the first and second rods are relatively fixed; when the locking mechanism is in the unlocked state, if the first engaging portion engages with the second engaging portion, the first and second rods are relatively fixed; if the first engaging portion disengages from the second engaging portion, the first and second rods can rotate relative to each other to fold or unfold the mobile vehicle.

Description

Technical Field

[0001] This invention relates to the field of vehicle technology, and in particular to a foldable mobile vehicle. Background Technology

[0002] Rotatable and foldable vehicles, such as foldable strollers, are convenient to store and carry, but they can also pose safety hazards. According to the European regulation EN1888-1:2018 (8.3.5.1 Test standard for folding systems for easy storage or transport), at least two separate and independent manual operating devices must meet the following conditions: releasing either device should allow it to automatically return to its initial state, and the locking device should re-lock. However, in currently available strollers, when the locking mechanism, such as the one on the stroller's hand, is accidentally pressed, the stroller's weight or the stroller's own weight can cause a certain degree of pivoting, preventing the locking mechanism from returning to its locked position and creating a safety hazard for the child inside the stroller. Summary of the Invention

[0003] Based on this, a foldable mobile vehicle is provided, which can prevent the vehicle from pivoting after the locking mechanism is accidentally released, and facilitates the relocking and fixing of the mobile vehicle.

[0004] One aspect of the present invention provides a foldable mobility vehicle, comprising:

[0005] The locking mechanism has a locked state and an unlocked state;

[0006] The first member has a first mating part.

[0007] The second member is pivotally connected to the first member, and the second member is provided with a second mating part that is detachably mated to the first mating part;

[0008] When the locking mechanism is in the locked state, the first rod and the second rod are relatively fixed; when the locking mechanism is in the unlocked state, if the first mating part and the second mating part are engaged, the first rod and the second rod are relatively fixed; if the first mating part and the second mating part are disengaged, the first rod and the second rod can rotate relative to each other so as to retract or unfold the mobile vehicle.

[0009] In this foldable vehicle, when the locking mechanism is accidentally unlocked, the first and second mating parts are engaged, preventing the first lever, which is pivotally connected to the second lever, from pivoting. This allows the user to reset the locking mechanism, restoring the first lever to its locked state and improving the overall safety of the foldable vehicle. Furthermore, when it is truly necessary to unlock, the locking mechanism can be pressed, simultaneously disengaging the first and second mating parts, for example, by applying external force. This allows the first lever to rotate relative to the second lever and fold in, ensuring the vehicle's folding function is realized.

[0010] In one embodiment, the first mating part is a male connecting part, and the second mating part is a female connecting part that can be detachably mated with the male connecting part; or, the first mating part is a female connecting part, and the second mating part is a male connecting part that can be detachably mated with the female connecting part.

[0011] In one embodiment, one of the first mating portion and the second mating portion is a snap-fit ​​groove, and the other of the first mating portion and the second mating portion is a snap-fit ​​protrusion that can snap-fit ​​with the snap-fit ​​groove.

[0012] In one embodiment, the snap-fit ​​groove is a V-shaped groove, the V-shaped groove having a first groove wall and a second groove wall arranged in a V-shape, and the snap-fit ​​protrusion is an arc-shaped protrusion that can be tangent to the first groove wall and the second groove wall.

[0013] In one embodiment, the angle between the first groove wall and the plane containing the opening of the V-shaped groove is 40° to 50°; the angle between the second groove wall and the plane containing the opening of the V-shaped groove is 40° to 50°; and the height of the arc-shaped protrusion is 1.5mm to 2.5mm.

[0014] In one embodiment, the snap-fit ​​protrusion is a serrated protrusion including at least two snap-fit ​​teeth, and the snap-fit ​​groove includes a serrated groove including at least two snap-fit ​​slots, wherein at least two of the snap-fit ​​teeth can engage with at least two of the snap-fit ​​slots one by one.

[0015] In one embodiment, one of the first mating part and the second mating part is a plug hole, and the other of the first mating part and the second mating part is a plug pin that can be plugged into the plug hole.

[0016] In one embodiment, the wall of the insertion hole is elastically deformable. When the wall of the insertion hole elastically deforms, the inner diameter of the insertion hole is larger than the diameter of the insertion pin. When the wall of the insertion hole returns to its original shape, the inner diameter of the insertion hole is smaller than the diameter of the insertion pin. Alternatively, the insertion pin is elastically deformable. When the insertion pin elastically deforms, the diameter of the insertion pin is smaller than the inner diameter of the insertion hole. When the insertion pin returns to its original shape, the diameter of the insertion pin is larger than the inner diameter of the insertion hole.

[0017] In one embodiment, the foldable mobile vehicle further includes a third rod. The first rod has a first position, a second position, and a third position that are sequentially spaced along its extension direction. The first mating part is located at the third position. The third rod is pivotally connected to the first rod at the first position via the locking mechanism. When the locking mechanism is in a locked state, the first rod and the third rod are relatively fixed. When the locking mechanism is in an unlocked state, the first rod can rotate relative to the third rod to fold or unfold the mobile vehicle. The second rod is pivotally connected to the first rod at the second position.

[0018] In one embodiment, one end of the first rod is provided with a first rotating sector portion, and one end of the second rod is provided with a second rotating sector portion opposite to the first rotating sector portion. The second position is located at the center of the first rotating sector portion, and the center of the second rotating sector portion is pivotally connected to the first rotating sector portion at the second position. The first mating portion is provided on the side of the first rotating sector portion facing the second rotating sector portion and is located at the circumferential edge. The second mating portion is provided on the side of the second rotating sector portion facing the first rotating sector portion and is located at the circumferential edge.

[0019] In one embodiment, the second rotating sector has a stop surface on the side near the third rod, and when the first rod and the second rod are set at a second preset angle, the first rotating sector abuts against the stop surface.

[0020] In one embodiment, the locking mechanism includes:

[0021] The first locking shell is fixed to the first rod and has a first locking groove;

[0022] The second locking shell is fixed to the third rod and has a second locking groove;

[0023] A locking member has at least two locking teeth arranged at a predetermined angle. The first locking groove and the second locking groove both cooperate with the shape of the locking member. The locking member has a locked state and an unlocked state. When the locking member is in the locked state, the locking member is simultaneously located within the first locking shell and the second locking shell to restrict the rotation of the second locking shell relative to the first locking shell. When the locking member is in the unlocked state, the locking member exits from the first locking groove or the second locking groove to allow the second locking shell to rotate relative to the first locking shell.

[0024] The locking element is elastic and operably connected to it for holding the locking element in the locked state.

[0025] The unlocking member, operably connected to the locking member, is used to drive the locking member to move against the elastic force of the elastic member, thereby switching the locking member from the locked state to the unlocked state. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the mechanism of a mobile vehicle according to an embodiment of the present invention, in which the mobile vehicle is in a locked and fixed state;

[0027] Figure 2 This is a schematic diagram of the mechanism of a mobile vehicle according to an embodiment of the present invention. At this time, the mobile vehicle is in an unlocked rotating state.

[0028] Figure 3 for Figure 1 AA section view;

[0029] Figure 4 for Figure 1 A partial exploded view of a vehicle in action from one perspective;

[0030] Figure 5 for Figure 1 A partial exploded view of the vehicle in the video from another perspective;

[0031] Figure 6 for Figure 1 The vehicle in the video is partially exploded from another perspective;

[0032] Figure 7 for Figure 1 A schematic diagram of the structure of the first member of the mobile vehicle.

[0033] Explanation of reference numerals in the attached figures

[0034] 100. First rod; 101. First mating part; 110. First position; 120. Second position; 130. Third position; 140. First rotating sector part; 141. Arc-shaped guide groove; 150. Snap-fit ​​groove; 151. First groove wall; 152. Second groove wall; 200. Third rod; 300. Second rod; 301. Second mating part; 310. Second rotating sector part; 311. Arc-shaped guide groove. Guide rib, 312, stop, 320, snap-fit ​​protrusion, 400, locking mechanism, 410, first locking shell, 411, first locking groove, 420, elastic element, 430, locking element, 431, locking tooth, 440, second locking shell, 441, through hole, 442, second locking groove, 450, release element, 451, pressing protrusion, 20, handlebar, 30, front support, 40, rear support. Detailed Implementation

[0035] like Figures 1 to 2 As shown, one embodiment of this application proposes a foldable mobility vehicle. The foldable mobility vehicle includes a first rod 100, a third rod 200, and a second rod 300. In this embodiment, the vehicle can be a stroller. The stroller includes a handlebar 20, a front support 30, and a rear support 40. In this embodiment, the first rod 100, the third rod 200, and the second rod 300 are all hollow rods and are respectively sleeved on one end of the handlebar 20, the rear support 40, and the front support 30. Of course, in other embodiments, the first rod 100, the third rod 200, and the second rod 300 can also be connected to the handlebar 20, the rear support 40, and the front support 30 in other ways. Alternatively, the first rod 100, the third rod 200, and the second rod 300 can form part of the handlebar 20, the rear support 40, and the front support 30, respectively. In short, as long as the movement of the first link 100, the third link 200, and the second link 300 can drive the rider 20, the front support 30, and the rear support 40 to move accordingly, it is sufficient. This foldable mobile carrier 10 can prevent the rider 20 of the stroller from pivoting after the locking mechanism 400 is accidentally released, making it easier for the stroller to be relocked and improving the safety performance of the stroller.

[0036] Specifically, such as Figure 2 and Figure 7 As shown, the first rod 100 has a first position 110, a second position 120, and a third position 130 arranged sequentially at intervals along its extension direction. It should be noted that the structure of the vehicle of the present invention is not limited to this. In this embodiment, the first rod 100 is sleeved on the bottom end of the rider 20; of course, the first rod 100 can also be connected to the bottom end of the rider 20 or form part of the bottom end of the rider 20. A first mating part 101 is provided at the third position 130.

[0037] The third member 200 is pivotally connected to the first member 100 at the first position 110 via a locking mechanism 400. The locking mechanism 400 has a locked state and an unlocked state. When the locking mechanism 400 is in the locked state, the first member 100 and the third member 200 are relatively fixed and set at a first preset angle. When the locking mechanism 400 is in the unlocked state, the first member 100 can rotate relative to the third member 200. In this embodiment, the third member 200 is sleeved on the top end of the rear support member 40. Of course, the third member 200 can also be connected to the top end of the rear support member 40 or form part of the top end of the rear support member 40 in other ways. In this embodiment, the first preset angle is an acute angle.

[0038] In this embodiment, as Figures 4 to 6 As shown, the locking mechanism 400 includes a first locking shell 410, an elastic member 420, a locking member 430, a second locking shell 440, and a release member 450 arranged sequentially. The first locking shell 410 is fixed to the first rod 100, or is part of the first rod 100, and has a first locking groove 411. The second locking shell 440 is fixed to the third rod 200, or forms part of the third rod 200, and has a second locking groove 442. The locking member 430 has at least two locking teeth 431 arranged at a predetermined angle, and the first locking groove 411 and the second locking groove 442 both cooperate with the shape of the locking member 430. In this embodiment, the locking member 430 is a gear-shaped locking member 430, and the first locking groove 411 and the second locking groove 442 are both gear-shaped locking grooves that cooperate with the gear-shaped locking member 430. The locking member 430 has a locked state and an unlocked state. When the locking member 430 is in the locked state, it is simultaneously located within the first locking housing 410 and the second locking housing 440 to restrict the rotation of the second locking housing 440 relative to the first locking housing 410. When the locking member 430 is in the unlocked state, it exits from either the first locking groove 411 or the second locking groove 442 to allow the second locking housing 440 to rotate relative to the first locking housing 410. An elastic member 420 is operably connected to the locking member 430 to hold it in the locked state. In this embodiment, the elastic member 420 is a spring, with its two ends abutting against the first locking housing 410 and the locking member 430, respectively. A release member 450 is operably connected to the locking member 430 to drive the locking member 430 to move against the elastic force of the elastic member 420, thereby switching the locking member 430 from the locked state to the unlocked state. In this embodiment, the release member 450 is a release button, which is provided with a push part 451, and the second locking shell 440 is provided with a through hole 441 through which the push part 451 can pass.

[0039] Thus, when the release member 450 is not pressed and is in the locked state, the locking member 430 is simultaneously engaged within the first locking shell 410 and the second locking shell 440 under the elastic force of the return spring 420. The first locking shell 410 and the second locking shell 440 are in the locked state, that is, the first rod 100 and the third rod 200 are in the locked state. When the release member 450 is pressed, the pushing part 451 can pass through the through hole 441 to press the second locking shell 440 and the locking member 430, causing the locking member 430 to disengage from the first locking groove 411 or the second locking groove 442. The first locking shell 410 and the second locking shell 440 are in the unlocked state, that is, the first rod 100 can rotate relative to the third rod 200. This locking mechanism 400 has a simple structure and allows the first rod 100 and the third rod 200 to switch between the locked and unlocked states. However, when the release member 450 is accidentally pressed, the first rod 100 will pivot under the action of external force or its own weight, causing the locking teeth 431 of the locking member 430 to misalign with the first locking groove 411 or the second locking groove 442. As a result, the locking member 430 is difficult to re-engage into the first locking groove 411 or the second locking groove 442, so that the first locking shell 410 and the second locking shell 440 are put back into the locked state, that is, it is difficult to put the first rod 100 and the third rod 200 back into the relatively locked and fixed state.

[0040] The second rod 300 is pivotally connected to the first rod 100 at the second position 120. The second rod 300 is provided with a second mating part 301 that can be detachably mated with the first mating part 101. When the first mating part 101 and the second mating part 301 are mated, the first rod 100 and the second rod 300 are relatively fixed and set at a second preset angle. When the first mating part 101 and the second mating part 301 are disengaged, the first rod 100 can rotate relative to the second rod 300. The angle between the first rod 100 and the second rod 300 facing the third rod 200 is less than or equal to the second preset angle. In this embodiment, the second preset angle is 180 degrees. Thus, when the first mating part 101 and the second mating part 301 are engaged, the first rod 100 and the second rod 300 are on the same straight line. Since the first preset angle is an acute angle, when the locking mechanism 400 is in the locked state, the combined structure of the first rod 100 and the second rod 300 forms a triangular support structure with the third rod 200. Furthermore, since the angle between the first rod 100 and the second rod 300 facing the third rod 200 always remains less than or equal to the second preset angle, that is, when the locking mechanism 400 is in the locked state, the first rod 100 cannot rotate from the third rod 200 towards the second rod 300, nor can it rotate from the second rod 300 towards the third rod 200. Therefore, when the locking mechanism 400 is in the locked state, the first rod 100 and the second rod 300 can maintain their position at the first preset angle, thereby providing a stable triangular support structure for the entire stroller.

[0041] Thus, when the locking mechanism 400 is in the locked state, the first rod 100, the second rod 300, and the third rod 200 form a stable triangular support structure, with the first rod 100 and the second rod 300 relatively fixed, and the first rod 100 and the third rod 200 also relatively fixed. When the locking mechanism 400 is accidentally pressed to unlock, because the third position 130 of the first rod 100 has a first mating part 101 that mates with the second mating part 301 of the second rod 300, the first mating part 101 engages with the second mating part 301, and the first rod 100 and the second rod 300 remain relatively fixed, preventing the first rod 100 from pivoting. This prevents the first rod 100 from pivoting in an accidentally unlocked state, thus preventing the locking mechanism 400 from returning to the locked state and the first rod 100 and the second rod 300 from being locked securely. When the retractable mobile vehicle 10 needs to be folded up, the locking mechanism 400 is unlocked, and a certain external force is applied to the first rod 100, so that the first mating part 101 and the second mating part 301 are disengaged, thereby releasing the relative fixed state between the first rod 100 and the third rod 200 and the second rod 300, and folding up the retractable mobile vehicle 10.

[0042] In one embodiment, such as Figures 4 to 7 As shown, the bottom end of the first rod 100 is provided with a first rotating sector 140, the top end of the second rod 300 is provided with a second rotating sector 310, and the second position 120 is located at the center of the first rotating sector 140. The center of the second rotating sector 310 is pivotally connected to the first rotating sector 140 at the second position 120 (i.e., the center of the first rotating sector 140). The side of the first rotating sector 140 facing the second rotating sector 310 is provided with at least two arc-shaped guide grooves 141 concentric with the first rotating sector 140. At the same time, the side of the second rotating sector 310 facing the first rotating sector 140 is provided with at least two arc-shaped guide ribs 311 concentric with the second rotating sector 310. The arc-shaped guide ribs 311 and the arc-shaped guide grooves 141 are matched one-to-one to guide the rotation of the first rod 100 and the second rod 300, facilitating the folding of the mobile vehicle. It is understandable that the positions of the arc-shaped guide groove 141 and the arc-shaped guide rib 311 can be interchanged.

[0043] In one embodiment, such as Figure 6 and Figure 7 As shown, the first engaging part 101 is located at the circumferential edge of the side of the first rotating sector 140 facing the second rotating sector 310, and the second engaging part 301 is located at the circumferential edge of the side of the second rotating sector 310 facing the first rotating sector 140. Thus, the distance between the second position 120 and the third position 130 is relatively large. According to the lever principle, when closing the vehicle, the external force required to disengage the first engaging part 101 and the second engaging part 301 is smaller, meaning that closing the vehicle requires less effort. Of course, the positions of the first engaging part 101 and the second engaging part 301 can also be set according to actual needs. For example, they can be set closer to the center of the first rotating sector 140 and the second rotating sector 310 so that the first lever 100 is less likely to pivot when the locking mechanism 400 is accidentally released. There are no restrictions on this.

[0044] Furthermore, a stop portion 312 is provided on the side of the second rotating sector portion 310 near the third rod 200. When the first rod 100 and the second rod 300 are set at a second preset angle, the first rotating sector portion 140 abuts against the stop surface. The stop portion 312 can be a stop protrusion, a stop slope, etc. In this embodiment, the stop portion 312 is a stop slope provided at the circumferential edge of the side of the second rotating sector portion 310 facing the first rotating sector portion 140, and the stop slope gradually protrudes along the direction near the third rod 200. In this way, it can be ensured that the angle between the first rod 100 and the second rod 300 toward the third rod 200 is always less than or equal to the second preset angle.

[0045] Optionally, the first mating part 101 is a male connection part, and the second mating part 301 is a female connection part that can be detachably mated with the male connection part; or, the first mating part 101 is a female connection part, and the second mating part 301 is a male connection part that can be detachably mated with the female connection part.

[0046] In one embodiment, such as Figure 6 and Figure 7 As shown, the first mating part 101 is a snap-fit ​​groove 150, and the second mating part 301 is a snap-fit ​​protrusion 320 that can engage with the snap-fit ​​groove 150. Thus, when the locking mechanism 400 is accidentally unlocked, because the snap-fit ​​protrusion 320 of the first rod 100 engages within the snap-fit ​​groove 150 of the second rod 300, the first rod 100 is less likely to pivot under external force or its own weight, thereby facilitating the re-locking of the locking mechanism 400 and re-locking the vehicle. When it is necessary to retract the vehicle, only a certain external force needs to be applied to the first rod 100 to rotate the snap-fit ​​protrusion 320 out of the snap-fit ​​groove 150, ensuring the vehicle's retraction function. Alternatively, the first mating part 101 can be a snap-fit ​​protrusion 320, and the second mating part 301 can be a snap-fit ​​groove 150 that engages with the snap-fit ​​protrusion 320.

[0047] In this embodiment, the snap-fit ​​groove 150 is located on the circumferential edge of the side of the first rotating sector portion 140 facing the second rotating sector portion 310, and the snap-fit ​​protrusion 320 is located on the circumferential edge of the side of the second rotating sector portion 310 facing the first rotating sector portion 140. Of course, in other embodiments, the snap-fit ​​groove 150 may also be located at other positions of the first rotating sector portion 140, and the snap-fit ​​protrusion 320 may also be located at other positions of the second rotating sector portion 310.

[0048] Furthermore, such as Figure 3As shown, the locking groove 150 is a V-shaped groove, with a first groove wall 151 and a second groove wall 152 arranged in a V-shape. The locking protrusion 320 is an arc-shaped protrusion that can be tangent to the groove wall of the V-shaped groove. That is, the cross-sectional shape of the locking groove 150 perpendicular to the first rod 100 is V-shaped, and the cross-sectional shape of the locking protrusion 320 perpendicular to the third rod 200 is arc-shaped. In this way, when the first rod 100 rotates to lock and fix with the third rod 200, the locking protrusion 320 can be locked into the locking groove 150 more smoothly, and when the first rod 100 and the third rod 200 are released from fixation, the locking protrusion 320 can also be easily rotated out of the locking groove 150. Optionally, the angle between the first groove wall 151 and the plane containing the opening of the V-shaped groove is 40° to 50°, and in this embodiment, the angle is 45°; the angle between the second groove wall 152 and the plane containing the opening of the V-shaped groove is 40° to 50°, and in this embodiment, the angle is 45°; the height of the arc-shaped protrusion is 1.5mm to 2.5mm, and in this embodiment, the height is 2mm. The above configuration prevents the locking mechanism 400 from accidentally releasing and causing the first rod 100 to pivot, while also not affecting the retraction function of the mobile vehicle.

[0049] Furthermore, the engaging protrusion 320 is a serrated protrusion including at least two engaging teeth, and the engaging groove 150 is a serrated groove including at least two engaging slots, wherein the at least two engaging teeth can engage with the at least two engaging slots one by one. The structure of the serrated protrusion and serrated groove providing greater friction than a single protrusion and groove, gives the first rod 100 stronger anti-pivot capability in the event of accidental release. Of course, for the same required anti-pivot capability, the height of the serrated protrusion can be lower than that of a single protrusion, and the corresponding depth of the engaging groove 150 can also be smaller than that of a single groove.

[0050] In another embodiment, the first mating part 101 can be a plug hole, and the second mating part 301 can be a plug pin that can be inserted into the plug hole. Thus, when the locking mechanism 400 is accidentally unlocked, since the plug pin of the first rod 100 is inserted into the plug groove of the second rod 300, the first rod 100 is less likely to pivot under external force or its own weight, thereby facilitating the re-locking of the locking mechanism 400 and re-locking the retractable vehicle 10. When it is necessary to retract the vehicle, only a certain external force needs to be applied to the first rod 100 to rotate the plug pin out of the plug groove, ensuring the retraction function of the vehicle. It can also be understood that the first mating part 101 can be a plug pin, and the second mating part 301 can be a plug hole that can be inserted into the plug pin.

[0051] Furthermore, the wall of the connector hole can elastically deform. When the wall of the connector hole elastically deforms, the inner diameter of the connector hole is larger than the diameter of the connector pin. When the wall of the connector hole returns to its original shape, the inner diameter of the connector hole is smaller than the diameter of the connector pin. Alternatively, the connector pin can elastically deform. When the connector pin elastically deforms, the diameter of the connector pin is smaller than the inner diameter of the connector hole. When the connector pin returns to its original shape, the diameter of the connector pin is larger than the inner diameter of the connector hole. This design facilitates the insertion and stable retention of the connector pin within the connector hole, preventing it from falling out. It also facilitates the removal of the connector pin from the connector hole when external force is applied.

[0052] Optionally, both the first rod 100 and the second rod 300 are made of deformable plastic material to facilitate the engagement and disengagement of the first mating part 101 and the second mating part 301.

[0053] The aforementioned foldable mobile vehicle 10 and the vehicle itself have at least the following technical effects:

[0054] When the locking mechanism 400 is accidentally unlocked, because the first engaging part 101 and the second engaging part 301 are engaged, the first lever 100, which is pivotally connected to the second lever 300, is less likely to pivot. This allows the user to reset the locking mechanism 400, restoring the vehicle to its locked and fixed state, thus improving the overall safety of the vehicle. Furthermore, when it is truly necessary to release the lock, the locking mechanism 400 can be pressed, simultaneously disengaging the first engaging part 101 and the second engaging part 301, for example, by applying a certain external force. This allows the first lever 100 to rotate and retract relative to the second lever 300, ensuring the vehicle's retraction function is realized.

[0055] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0056] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A foldable mobility vehicle, characterized by, The utility model relates to a locking mechanism, a first rod and a second rod. The locking mechanism has a locking state and an unlocking state. The first rod has a first matching part. The second rod is pivotally connected to the first rod and has a second matching part that is detachably matched with the first matching part. When the locking mechanism is in the locking state, the first matching part is matched with the second matching part, and the first rod is relatively fixed with the second rod.

2. The collapsible mobility vehicle of claim 1, wherein, When the locking mechanism is in the unlocking state, if the first matching part is matched with the second matching part, the first rod is relatively fixed with the second rod, the locking mechanism can be switched from the unlocking state to the locking state, and if the first matching part is not matched with the second matching part, the first rod can be relatively rotated with the second rod so as to fold or unfold the mobile carrier.

3. The collapsible mobility vehicle of claim 1, wherein, The first matching part is a male connecting part, and the second matching part is a female connecting part that is detachably matched with the male connecting part.

4. The collapsible mobility vehicle of claim 3, wherein, The first matching part is a female connecting part, and the second matching part is a male connecting part that is detachably matched with the female connecting part.

5. The collapsible mobility vehicle of claim 4, wherein, One of the first matching part and the second matching part is a clamping groove, and the other is a clamping protrusion that is tangentially matched with the first slot wall and the second slot wall.

6. The collapsible mobility vehicle of claim 3, wherein, The first slot wall and the second slot wall form an angle of 40°-50° with the plane of the slot opening of the V-shaped groove.

7. The collapsible mobility vehicle of claim 1, wherein, The protrusion height of the arc-shaped protrusion is 1.5 mm-2.5 mm.

8. The collapsible mobility vehicle of claim 7, wherein, The clamping protrusion is a sawtooth-shaped protrusion including at least two clamping teeth, and the clamping groove is a sawtooth-shaped groove including at least two clamping grooves. One of the first matching part and the second matching part is a plug-in hole, and the other is a plug-in pin that is plug-in matched with the plug-in hole. The hole wall of the plug-in hole can be elastically deformed. When the hole wall of the plug-in hole is elastically deformed, the inner diameter of the plug-in hole is greater than the diameter of the plug-in pin, and when the hole wall of the plug-in hole returns to the original state, the inner diameter of the plug-in hole is smaller than the diameter of the plug-in pin. The plug-in pin can be elastically deformed. When the plug-in pin is elastically deformed, the diameter of the plug-in pin is smaller than the inner diameter of the plug-in hole, and when the plug-in pin returns to the original state, the diameter of the plug-in pin is greater than the inner diameter of the plug-in hole.

9. The collapsible mobility vehicle of any one of claims 1 to 8, wherein, The third rod member is pivotally connected to the first rod member at the first position via the locking mechanism, and the first rod member is relatively fixed with the third rod member when the locking mechanism is in the locked state, and the first rod member can rotate relative to the third rod member to fold or unfold the mobile carrier when the locking mechanism is in the unlocked state.

10. The collapsible mobility vehicle of claim 9, wherein, One end of the first rod member is provided with a first rotating sector, one end of the second rod member is provided with a second rotating sector opposite to the first rotating sector, the second position is located at the center of the first rotating sector, the center of the second rotating sector is pivotally connected to the second position with the first rotating sector, the first matching part is arranged on one side of the first rotating sector facing the second rotating sector and located at the circumferential edge, and the second matching part is arranged on one side of the second rotating sector facing the first rotating sector and located at the circumferential edge.

11. The collapsible mobility vehicle of claim 10, wherein, The second rotating sector is provided with a stop part on the side close to the third rod member, and the first rotating sector abuts against the stop part when the first rod member is relatively fixed with the second rod member.

12. The collapsible mobility vehicle of claim 9, wherein, The locking mechanism comprises: a first locking shell fixed on the first rod member and provided with a first locking groove; a second locking shell fixed on the third rod member and provided with a second locking groove; a locking member provided with at least two locking teeth arranged at a predetermined angle, the first locking groove and the second locking groove are matched with the shape of the locking member, the locking member has the locked state and the unlocked state, the locking member is simultaneously located in the first locking shell and the second locking shell to limit the rotation of the second locking shell relative to the first locking shell when the locking member is in the locked state, and the locking member is withdrawn from the first locking groove or the second locking groove to allow the second locking shell to rotate relative to the first locking shell when the locking member is in the unlocked state; a resilient member operatively connected with the locking member for keeping the locking member in the locked state; a release member operatively connected with the locking member for driving the locking member to move against the elastic force of the resilient member, so that the locking member is switched from the locked state to the unlocked state.

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