CN-121990032-A - Foldable mobile carrier

Abstract

The invention relates to a foldable mobile carrier, which comprises a locking mechanism, a first rod piece and a second rod piece. The locking mechanism has a locked state and an unlocked state. The first rod piece is provided with a first matching part. The second rod piece is pivoted with the first rod piece, and the second rod piece is provided with a second matching part which is detachably matched with the first matching part. When the locking mechanism is in the unlocking state, if the first matching part is matched with the second matching part, the first rod piece is relatively fixed with the second rod piece, and if the first matching part is not matched with the second matching part, the first rod piece and the second rod piece can relatively rotate so as to fold or unfold the mobile carrier.

Inventors

• HU SHOUFENG

Assignees

• 明门(中国)幼童用品有限公司

Dates

Publication Date

20260508

Application Date

20210810

Claims (16)

1. 1. A foldable mobile carrier, characterized by comprising the following steps: The locking mechanism is provided with a locking state and an unlocking state; the first rod piece is provided with a first matching part; the second rod piece is pivoted with the first rod piece and is provided with a second matching part which is detachably matched with the first matching part; the third rod piece is pivoted with the first rod piece through the locking mechanism; When the locking mechanism is in the unlocking state, if the first matching part is matched with the second matching part, the first rod piece and the second rod piece are relatively fixed, and if the locking mechanism is in the unlocking state, the first rod piece and the second rod piece are relatively fixed, 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 piece, the second rod piece and the third rod piece can relatively rotate, so that the mobile carrier can be folded or unfolded.
2. 2. The foldable mobile carrier of claim 1, wherein the first mating portion is a male connection portion, the second mating portion is a female connection portion that is detachably mated with the male connection portion, or the first mating portion is a female connection portion, and the second mating portion is a male connection portion that is detachably mated with the female connection portion.
3. 3. The collapsible mobile carrier of claim 1, wherein one of the first mating portion and the second mating portion is a snap groove, and the other of the first mating portion and the second mating portion is a snap protrusion capable of snap mating with the snap groove.
4. 4. The foldable mobile carrier of claim 3, wherein the clamping groove is a V-shaped groove, the V-shaped groove has a first groove wall and a second groove wall arranged in a V-shape, and the clamping protrusion is an arc protrusion capable of being tangent to the first groove wall and the second groove wall.
5. 5. The foldable mobile carrier of claim 4, wherein an included angle between the first groove wall and a plane of the V-shaped groove is 40 ° -50 °, an included angle between the second groove wall and the plane of the V-shaped groove is 40 ° -50 °, and a height of the arc-shaped protrusion is 1.5 mm-2.5 mm.
6. 6. The foldable mobile carrier of claim 3, wherein the clamping protrusion is a saw-tooth protrusion comprising at least two clamping teeth, the clamping groove is a saw-tooth groove comprising at least two clamping grooves, and at least two clamping teeth are capable of being in one-to-one clamping fit with at least two clamping grooves.
7. 7. The collapsible mobile carrier of claim 1, wherein one of the first mating portion and the second mating portion is a mating hole and the other of the first mating portion and the second mating portion is a mating pin mateable with the mating hole.
8. 8. The foldable mobile carrier of claim 7, wherein the hole wall of the socket is elastically deformable, the inner diameter of the socket is larger than the diameter of the socket pin when the hole wall of the socket is elastically deformed, the inner diameter of the socket is smaller than the diameter of the socket pin when the hole wall of the socket is restored, or the socket pin is elastically deformable, the diameter of the socket pin is smaller than the inner diameter of the socket when the socket pin is elastically deformed, and the diameter of the socket pin is larger than the inner diameter of the socket hole when the socket pin is restored.
9. 9. The foldable mobile carrier of any one of claims 1 to 8, further comprising a first lever having a first position, a second position, and a third position sequentially spaced apart along an extension direction thereof, wherein the first engaging portion is disposed at the third position, the third lever is pivotally connected to the first position by the locking mechanism and the first lever, and the second lever is pivotally connected to the second position by the first lever.
10. 10. The foldable mobile carrier of claim 9, wherein a first rotating fan section is disposed at one end of the first rod, a second rotating fan section opposite to the first rotating fan section is disposed at one end of the second rod, the second position is located at a center of the first rotating fan section, the center of the second rotating fan section and the first rotating fan section are pivoted at the second position, the first matching section is disposed at a surface of the first rotating fan section facing the second rotating fan section and at a circumferential edge, and the second matching section is disposed at a surface of the second rotating fan section facing the first rotating fan section and at a circumferential edge.
11. 11. The foldable mobile carrier of claim 9, wherein a first rotating sector is disposed at one end of the first rod, a second rotating sector opposite to the first rotating sector is disposed at one end of the second rod, the second position is located at a center of the first rotating sector, the center of the second rotating sector and the first rotating sector are pivoted at the second position, the first mating portion is disposed on a surface of the first rotating sector facing the second rotating sector and is closer to the center of the first rotating sector than a circumferential edge of the first rotating sector, and the second mating portion is disposed on a surface of the second rotating sector facing the first rotating sector and is closer to the center of the second rotating sector than a circumferential edge of the second rotating sector.
12. 12. The foldable mobile carrier of claim 10, wherein one of a face of the first rotating sector facing the second rotating sector and a face of the second rotating sector facing the first rotating sector is provided with an arc-shaped guide groove, and the other of the face of the first rotating sector facing the second rotating sector and the face of the second rotating sector facing the first rotating sector is provided with an arc-shaped guide rib, the arc-shaped guide ribs being in one-to-one correspondence with the arc-shaped guide grooves to guide the rotation of the first lever and the second lever.
13. 13. The collapsible mobile carrier of claim 10, wherein a side of the second rotating sector adjacent to the third lever has a stop against which the first rotating sector abuts when the first lever and the second lever are fixed relative to each other.
14. 14. The collapsible mobile carrier of any one of claims 1-8, wherein the locking mechanism comprises: the first locking shell is fixed on the first rod piece and provided with a first locking groove; the second locking shell is fixed on the third rod piece and provided with a second locking groove; The locking piece is provided with at least two locking teeth which are arranged at a preset angle, the first locking groove and the second locking groove are matched with the shape of the locking piece, the locking piece is provided with the locking state and the unlocking state, when the locking piece is in the locking state, the locking piece is simultaneously positioned in the first locking shell and the second locking shell so as to limit the rotation of the second locking shell relative to the first locking shell, and when the locking piece is in the unlocking state, the locking piece is withdrawn from the first locking groove or the second locking groove so as to allow the second locking shell to rotate relative to the first locking shell; an elastic member operatively connected to the locking member for maintaining the locking member in the locked state; and the locking piece is operatively connected with the locking piece and is used for driving the locking piece to move against the elastic force of the elastic piece so as to enable the locking piece to be switched from the locking state to the unlocking state.
15. 15. The collapsible mobile vehicle of any one of claims 1-8 wherein the collapsible mobile vehicle is a cart comprising a rider, a front support, and a rear support; The first rod, the third rod and the second rod are respectively connected with the rider, the rear support and the front support, or The first lever, the third lever, and the second lever form a portion of the rider, a portion of the rear support, and a portion of the front support, respectively.
16. 16. The retractable mobile carrier of any one of claims 1-8, wherein when the locking mechanism is in the locked state, the first lever and the third lever are disposed at a first predetermined angle, the first lever and the second lever are disposed at a second predetermined angle, the second predetermined angle is greater than the first predetermined angle, and an included angle between the first lever and the second lever is less than or equal to the second predetermined angle when the first mating portion and the second mating portion are disengaged.

Description

Foldable mobile carrier Technical Field The present invention relates to a foldable mobile carrier, and more particularly to a foldable mobile carrier. Background The rotatable carrier that receives, like folding children's shallow etc. is convenient to accomodate and carry, but also has the potential safety hazard easily. According to European regulations EN1888-1:2018 (8.3.5.1, a folding system test standard for easy storage or transport) test requirements, there are at least two separate and independent manual operating devices that should meet the condition that either operating device of the lock should be released and also automatically return to its original state and that the locking device should be re-locked. However, in the existing child cart on the market, when the locking mechanism is accidentally pressed on, for example, a rider, the rider can pivot to a certain extent under the action of the weight of the child or the gravity of the rider, so that the locking mechanism cannot return to the locking position again, and a certain potential safety hazard is caused to the child in the child cart. Disclosure of Invention Based on the above, a foldable mobile carrier is provided, which can prevent the carrier from pivoting after the locking mechanism is accidentally released, so as to facilitate the re-locking and fixing of the mobile carrier. One aspect of the present invention provides a foldable mobile carrier, comprising: The locking mechanism is provided with a locking state and an unlocking state; a first rod member provided with a first fitting part The second rod piece is pivoted with the first rod piece and is provided with a second matching part which is detachably matched with the first matching part; When the locking mechanism is in an unlocking state, if the first matching part is matched with the second matching part, the first rod piece is relatively fixed with the second rod piece, and if the first matching part is not matched with the second matching part, the first rod piece and the second rod piece can relatively rotate so as to fold or unfold the mobile carrier. In the foldable mobile carrier, when the locking mechanism is unlocked accidentally, the first matching part and the second matching part are in a matching state, so that the first rod piece pivoted with the second rod piece cannot pivot, a user can reset the locking mechanism again, the first rod piece can restore to the locking state again, and the safety of the whole foldable mobile carrier is improved. In addition, when the locking is really needed to be released, the locking mechanism can be pressed, and the first matching part and the second matching part are simultaneously released, for example, a certain external force is applied, so that the first rod piece can rotate and retract relative to the second rod piece, and the retraction function of the movable carrier is guaranteed. In one embodiment, the first mating portion is a male connecting portion, the second mating portion is a female connecting portion capable of being detachably mated with the male connecting portion, or the first mating portion is a female connecting portion, and the second mating portion is a male connecting portion capable of being detachably mated with the female connecting portion. In one embodiment, one of the first mating portion and the second mating portion is a clamping groove, and the other of the first mating portion and the second mating portion is a clamping protrusion capable of being clamped and mated with the clamping groove. In one embodiment, the clamping groove is a V-shaped groove, the V-shaped groove is provided with a first groove wall and a second groove wall which are arranged in a V-shape, and the clamping protrusion is an arc protrusion which can be tangent to the first groove wall and the second groove wall. In one embodiment, the included angle between the first groove wall and the plane of the notch of the V-shaped groove is 40-50 degrees, the included angle between the second groove wall and the plane of the notch of the V-shaped groove is 40-50 degrees, and the height of the arc-shaped protrusion is 1.5 mm-2.5 mm. In one embodiment, the clamping protrusion is a zigzag protrusion including at least two clamping teeth, the clamping groove includes a zigzag groove of at least two clamping grooves, and at least two clamping teeth can be in one-to-one clamping fit with at least two clamping grooves. In one embodiment, one of the first mating portion and the second mating portion is a plug hole, and the other of the first mating portion and the second mating portion is a plug pin capable of plug-in mating with the plug hole. In one embodiment, the hole wall of the plugging hole can be elastically deformed, when the hole wall of the plugging hole is elastically deformed, the inner diameter of the plugging hole is larger than the diameter of the plugging pin, when the hole wall of the plugging hole is restored, the i