TWI831554B - Rear wheel rotation lock mechanism and child carrier - Google Patents

Abstract

A child carrier includes: a frame; a wheel rotatably connected to the frame via a connection mount so that the connection mount and the wheel are rotatable relative to the frame to change a direction of the wheel; a lock disposed on the frame and movable between a locking position where the lock prevents rotation of the connection mount relative to the frame and an unlocking position where the connection mount is allowed to rotate relative to the frame; and an operating part disposed on the frame, a drawing part being disposed between the operating part and the drawing part so that the operating part is operable to drive the lock in movement through the drawing part, wherein the operating part has a first operating position corresponding to the locking position of the lock and a second operating position corresponding to the unlocking position of the lock.

Description

Rear wheel rotation locking mechanism and child carrier

The present invention relates to the field of infant carriers, and in particular to a rear wheel rotation locking mechanism and an infant carrier having the rear wheel rotation locking mechanism.

For parents with children, when taking their children out for shopping or walking, they usually use wheeled infant carriers instead of holding them in hands to reduce the burden on adults. Infant carriers also have the features of comfort and safety. The advantages, therefore, make toddler carriers more and more popular.

Existing baby carriages, baby seats and other infant vehicles generally have frames and wheels. The front wheels can generally both roll and rotate relative to the frame, while most of the rear wheels can only roll relative to the frame. It cannot rotate relative to the frame. Therefore, when the wheels need to rotate relative to the frame to turn or fold the child carrier, such as from forward and backward movement to left and right parallel movement, the rear wheels cannot rotate relative to the frame and cannot pass directly. The wheels switch between rolling forward and backward and rolling left and right to achieve steering, but require a larger rotation. It requires a curved space to turn, or the user has to lift the entire infant carrier to turn. Therefore, it cannot well meet different usage needs and has low adaptability. In addition, although there are some infant carriers on the market whose rear wheels can rotate relative to the frame, the structure of the rotation control mechanism is relatively complex and inconvenient to operate, which makes the entire infant carrier structure relatively complex and affects the use of the infant carrier.

Therefore, there is an urgent need for a rear wheel rotation locking mechanism that is simple in structure, easy to operate and capable of controlling rear wheel steering, and an infant carrier having the rear wheel rotation locking mechanism to overcome the above existing problems.

One of the objects of the present invention is to provide a rear wheel rotation locking mechanism that is simple in structure, easy to operate and capable of controlling rear wheel steering, so as to ensure the comfort of infants and young children riding in infant carriers.

Another object of the present invention is to provide an infant carrier, which is provided with a rear wheel rotation locking mechanism that is simple in structure, easy to operate, and capable of controlling rear wheel steering, so as to ensure the safety of infants and young children riding in the infant carrier. Comfort.

In order to achieve the above object, one embodiment of the present invention provides a child carrier, including: a frame; wheels, which are rotatably connected to the frame through a connecting base, so that the connecting base and the wheel can be rotated relative to the The vehicle frame rotates to change the direction of the wheel; the locking member is provided in the vehicle frame and can be between the locking position and the unlocking position. Move, when the locking piece is in the locking position, the connecting base is prevented from rotating relative to the frame, and when the locking piece is in the unlocking position, the connecting base is allowed to rotate relative to the frame; and an operating member is provided A traction member is provided on the frame and between the operating member and the locking member, so that the operation of the operating member can drive the locking member to move through the traction member, wherein the operating member has A first operating position corresponding to the locking position of the locking member and a second operating position corresponding to the releasing position of the locking member.

Another embodiment of the present invention also provides a child carrier, including: a frame; a first wheel and a second wheel, the first wheel is rotatably connected to the frame through a first connecting seat, so that the third wheel is rotatably connected to the frame. A connecting base and the first wheel can rotate relative to the frame to change the direction of the first wheel, and the second wheel is rotatably connected to the frame through a second connecting base, so that the second wheel is rotatably connected to the frame. The second connecting seat and the second wheel can rotate relative to the frame to change the direction of the second wheel; the first locking piece and the second locking piece are both provided in the frame, and the Each of the first locking member and the second locking member is movable between a locking position and a release position, wherein the first locking member prevents the first connection base from moving relative to the first locking member when in the locking position. The vehicle frame rotates, and when the first locking part is in the unlocking position, the first connecting seat is allowed to rotate relative to the vehicle frame; when the second locking part is in the locking position, the second connecting seat is prevented from rotating relative to the vehicle frame. When the vehicle frame rotates, the second locking member is in the unlocking position, allowing the second connection base to rotate relative to the vehicle frame; and an operating member, which is provided on the vehicle frame, and the operating member is connected to the vehicle frame. A first traction piece is disposed between the first locking pieces, and the operating piece and the third A second traction piece is provided between the two locking pieces, so that the operation of the operating piece can drive the movement of the first locking piece and the second locking piece respectively through the first traction piece and the second traction piece. , wherein the operating member has a first operating position corresponding to the locking position of the first locking member and the second locking member, and a first operating position corresponding to the releasing position of the first locking member and the second locking member. Second operating position.

10: Fixed seat

11: Base

12: Pivot base

12a: Placement slot

12b: Groove

13: End cap

20: Operating parts

21:Socket hole

22: Pivot joint

23:Operation Department

24:Threaded hole

25:Wire trough

30:Driving parts

31:Butt part

32: Positioning Department

40: Locking piece

50: Traction parts

60:First elastic member

70: Second elastic member

80: Connect components

81: Connector

82:Connection block

83:Adapter shaft

84:Spring

100: Rear wheel rotation locking mechanism

121: Pivot hole

122:Through hole

131:Through hole

200:Children's vehicle

201: Frame

202:Rear wheel

203:Front wheel

321: Card table

811:Limit slot

2011: Rear leg tube

2012: Front leg tube

2013: Seat post

2014: Front fork tube

2015: rear fork tube

2016: Hand push rod

2017:Pass slot

2021: Axle

A: Push surface

B: Pivot end

Other features and effects of the present invention will be clearly presented in the embodiments with reference to the drawings, in which: Figure 1 is a schematic diagram of the rear wheel rotation locking mechanism of the present invention assembled on the rear fork tube of an infant carrier; Figure 2 is an exploded view of the rear wheel rotation locking mechanism of the present invention; FIG. 3 is a schematic diagram of a structure of the operating member of the present invention; FIG. 4 is a schematic diagram of the driving member and the operating member of the present invention being in a locked state; FIG. 5 is A schematic diagram of the driving member and the operating member of the present invention in a locked state in cooperation with each other; Figure 6 is a schematic diagram of the locking member of the present invention in a locked state under the action of the traction member; Fig. 7 is a schematic diagram of the locking member of the present invention acting on the traction member The bottom is in the unlocked state Figure 8 is a schematic diagram of the rear wheel rotation locking mechanism of the present invention assembled on the rear leg tube of the infant carrier; Figure 9 is a schematic diagram of another structure of the operating member of the present invention; and Figure 10 is a schematic diagram of the operating member of the present invention. Schematic diagram of yet another structure of the operating part.

In order to explain in detail the technical content, structural features, achieved objectives and effects of the present invention, the following will be described in detail in combination with the embodiments and the drawings.

Please refer to FIGS. 1 and 8 . The present invention discloses a rear wheel rotation locking mechanism 100 and an infant carrier 200 having the rear wheel rotation locking mechanism 100 . The infant carrier 200 includes but is not limited to, for example, a stroller, a baby stroller, or a stroller. Beds and baby seats, etc. Specifically, the infant carrier 200 disclosed in the preferred embodiment of the present invention is a stroller, which includes a frame 201, two rear wheels 202 rotatably connected to the two rear leg tubes 2011 of the frame 201, and a stroller. The two front wheels 203 are rotatably connected to the two front leg tubes 2012 of the vehicle 201, and the rear wheel rotation locking mechanism 100 is connected between the frame 201 and the rear wheel 202. Among them, a front fork tube 2014 is connected between the two front leg tubes 2012, and a rear fork tube 2015 is connected between the two rear leg tubes 2011. As shown in Figure 1, the rear wheel rotation locking mechanism 100 of the present invention can be installed between the rear fork tube 2015 and the rear wheel 202; as shown in Figure 8, the rear wheel rotation locking mechanism 100 can also be installed on the rear foot. between the tube 2011 and the rear wheel 202, thereby passing the rear wheel rotation locking mechanism 100 restricts or allows the rotation of the rear wheel 202 relative to the rear leg tube 2011 to change the relative position between the two, such as turning the rear wheel 202 rolling in the front and rear direction to rolling in the left and right direction, thereby meeting different usage requirements. Of course, the frame 201 of the present invention also includes components such as a hand push rod 2016 pivotally connected to the rear leg tube 2011, a seat tube 2013 pivotally connected between the rear leg tube 2011 and the front leg tube 2012, and its specific structure and connection relationship are not part of the present invention. The key points of protection will not be elaborated here.

Please refer to Figures 1 to 7 below to describe in detail the situation in which the rear wheel rotation locking mechanism 100 of the present invention is installed between the rear fork tube 2015 and the rear wheel 202:

Referring first to FIGS. 1 and 2 , the rear wheel rotation locking mechanism 100 specifically includes a fixed base 10 , an operating part 20 , a driving part 30 and a locking part 40 . The fixed base 10 is fixed on the rear fork tube 2015 of the vehicle frame 201, the operating member 20 is pivotally connected to the fixed base 10, and the driving member 30 is movably engaged with any one of the fixed base 10 and the operating member 20. , and slidably abuts the pushing surface A of the other of the two. The locking member 40 is interlocked with the driving member 30 and is arranged in a direction that prevents the rear wheel 202 from rotating relative to the rear leg tube 2011 , specifically located at the pivot end B of the rear leg tube 2011 and the rear wheel 202 . When the operating member 20 rotates relative to the fixed base 10, the driving member 30 moves relative to the fixed base 10 or the operating member 20 under the action of the pushing surface A that is in contact with it, thereby causing the locking member 40 to move away from the rear leg tube 2011 and the rear wheel. The direction of the pivot end B of the rear wheel 202 moves to a release position that allows the rear wheel 202 to rotate relative to the frame 201, or moves in a direction close to the pivot end B of the rear leg tube 2011 and the rear wheel 202 to prevent the rear wheel 202 from relative to the frame. Locked position for 201 turns. Of course, the driving member 30 can also be configured as a flexible Other structures that are movably inserted into either the fixed base 10 and the operating member 20.

Specifically, the rear wheel rotation locking mechanism 100 of the present invention also includes a traction member 50. The driving member 30 and the locking member 40 can be connected through the traction member 50, thereby realizing the interlocking arrangement of the two. The traction member 50 is specifically a steel wire rope. As shown by the dotted line in Figure 1, the traction member 50 can be inserted into the rear leg tube 2011 and the rear fork tube 2015, and can move along the corresponding tube wall, thereby guiding and limiting the movement of the traction member 50, making the movement smoother.

Specifically, the rear wheel rotation locking mechanism 100 of the present invention also includes a first elastic member 60. The first elastic member 60 is provided between the driving member 30 and the fixed base 10 or between the operating member 20 and the fixed base 10. The constant drive The driving part 30 drives the locking part 40 to move in a direction that prevents the rear wheel 202 from rotating relative to the frame 201 , that is, it constantly drives the locking part 40 to return to a locking position that prevents the rear wheel 202 from rotating relative to the frame 201 . The first elastic member 60 is a compression spring or a torsion spring. As shown in Figure 6, the rear wheel rotation locking mechanism 100 of the present invention also includes a second elastic member 70. The second elastic member 70 is provided between the locking member 40 and the rear leg tube 2011. The second elastic member 70 constantly drives the locking member. 40 moves in a direction that prevents the rear wheel 202 from rotating relative to the frame 201, that is, the locking member 40 is constantly driven to return to the locking position that prevents the rear wheel 202 from rotating relative to the frame 201. The second elastic member 70 is a compression spring.

Please refer to Figure 2. In this embodiment, the fixed base 10 includes a base 11 and a pivot base 12 that are connected as one body. The base 11 is fixed to the rear fork tube 2015 of the vehicle frame 201, and the operating member 20 is pivoted to the pivot base. On the opposite side of the base 12 , the driving member 30 is movably engaged with the opposite side of the pivot base 12 . Among them, the pivot base 12 is provided with a pivot for the operating member 20 to pivot. The connecting hole 121 and the through hole 122 for the driving member 30 to pass through. The operating member 20 is provided with a socket hole 21 corresponding to the pivot hole 121. The operating member 20 is pivoted through a pivot shaft (not shown in the figure) that passes through the pivot hole 121 and the socket hole 21. On the pivot base 12.

Specifically, the pivot base 12 includes a mounting slot 12a with a through hole 122. One end of the driving member 30 is movably engaged in the mounting slot 12a, and the other end of the driving member 30 passes through the through hole 122 to connect with the operating member. The push surface A of 20 is in contact with each other. More specifically, the driving member 30 includes a contact portion 31 and a positioning portion 32 that are connected as one body. The contact portion 31 abuts the pushing surface A of the operating member 20 , and the positioning portion 32 is movably engaged with the fixing base 10 . On the pivot base 12. The contact portion 31 is specifically cylindrical, and the positioning portion 32 is provided with a clamping platform 321 connected to the pulling member 50 , and one end of the pulling member 50 is wound around the clamping platform 321 . Preferably, the fixed base 10 further includes an end cover 13. The end cover 13 is used to cover the placement groove 12a. The driving member 30 can move in the placement groove 12a defined by the pivot base 12 and the end cover 13, then the first elastic member 60 It can also be installed between the end cover 13 and the positioning portion 32, and can also drive the locking member 40 to automatically return to the locking position. Furthermore, the end cover 13 or the pivot base 12 may also be provided with a snap portion (not shown in the figure) for positioning the driving member 30 at a required driving position. In addition, the end cover 13 is also provided with a through hole 131 for the traction member 50 to pass through.

Referring to FIGS. 3 to 5 , the opposite end of the operating member 20 close to the pivot base 12 is pivotally connected to the pivot base 12 to form a pivot portion 22 . The other end of the operating member 20 away from the pivot base 12 can be pivoted around. The part 22 rotates to form an operating part 23. The pushing surface A is located on the side where the pivot portion 22 is pivotally connected to the pivot seat 12 of the fixed base 10 . The pushing surface A is an inclined surface or a curve The shape of the surface and the inclined surface can be at least one of straight line, wedge shape, spiral shape and wavy shape. When the operating member 20 is pressed downward or pushed upward, the driving member 30 slides on the inclined plane or curved surface under the action of the pushing surface A, thereby lifting or pushing the locking member 40 to move it away from or closer to the pivot. Connect terminal B to unlock or lock, thereby allowing or restricting the rear wheel 202 to rotate around the rear leg tube 2011. Specifically, when the driving member 30 slides to the first position in contact with the relatively high position of the pushing surface A, the locking member 40 moves upward to disengage from the pivot end B, and moves to release the relative position of the rear wheel 202 . At the unlocking position where the rotation of the frame 201 is limited, the first elastic member 60 and the second elastic member 70 are compressed at this time; when the operating member 20 is released, the elastic force of the first elastic member 60 and the second elastic member 70 Under the action of The wheel 202 is at a locked position for rotating relative to the vehicle frame 201.

Referring to Figures 6 and 7, the rear wheel rotation locking mechanism 100 of the present invention also includes a connecting component 80. One end of the connecting component 80 is connected to the axle 2021 of the rear wheel 202, and the other end of the connecting component 80 is rotatably connected to the rear leg tube 2011. connection, the locking piece 40 is inserted into the penetration groove 2017 at the mouth of the rear leg tube 2011 with a clearance fit, and can be moved from the mouth to the limiting groove 811 inserted into the connecting component 80 or returned from the limiting groove 811 into the penetration groove 2017, thereby restricting or allowing the rear wheel 202 to rotate relative to the rear leg tube 2011.

Specifically, the connection assembly 80 includes a connection base 81 , a connection block 82 and an adapter shaft 83 installed at two opposite ends of the connection base 81 . The axle connecting the block 82 and the rear wheel 202 2021 is connected, and a shock-absorbing spring 84 is also connected between the connecting block 82 and the connecting seat 81 along the radial direction of the wheel axis 2021. The adapter shaft 83 is rotatably installed in the connecting seat 81 and is arranged along the radial direction of the wheel axis 2021 and can be extended into the rear leg tube 2011 from the mouth of the rear leg tube 2011, that is, the rear leg tube 2011 is sleeved on the adapter shaft 83 the upper end of. The limiting groove 811 is arranged along the radial direction of the wheel shaft 2021 and is located beside the adapter shaft 83 . Preferably, the penetration groove 2017 and the limiting groove 811 are arranged in a straight line on the side of the adapter shaft 83, so that the locking member 40 can be vertically inserted into the penetration groove 2017 and the limiting groove 811, thereby better limiting. The rear wheel 202 rotates around the adapter shaft 83 relative to the rear leg tube 2011. Generally, by rotating 90°, the rear wheel 202 can be changed from forward and backward movement to left and right translation.

Returning to Figures 1 and 2, in the preferred embodiment of the present invention, the fixed base 10 and the operating member 20 are arranged in a one-to-one correspondence, and the driving member 30, the locking member 40 and the traction member 50 are arranged in a one-to-one correspondence. settings. When the number of fixed bases 10 is one, two driving members 30 are symmetrically arranged on one fixed base 10, and the two driving members 30 are respectively in contact with the two pushing surfaces A on opposite sides of an operating member 20. A traction component 50 is connected between a driving component 30 and a locking component 40 . Then, pressing the operating member 20 with one hand or one foot can conveniently realize the unlocking operation. When the pressing force is released, the locking state will be automatically reset. The structure is simple and the operation is convenient.

Specifically, the fixed seat 10 is disposed at the center of the rear fork tube 2015, the pivot seat 12 is U-shaped, the operating member 20 is pivoted in the groove 12b at the center of the pivot seat 12, and both sides of the pivot seat 12 are Two mounting slots 12a are symmetrically provided on the side wall. After the two driving members 30 are engaged in the corresponding mounting slots 12a and pass through the corresponding through holes 122, they are connected to the operating position. The two pushing surfaces A on the two opposite sides of the member 20 are in contact with each other, and the two traction members 50 are inserted into the two rear leg tubes 2011.

Of course, in other embodiments, in order to achieve the stability and smoothness of adjustment, the fixed base 10 , the operating member 20 , the driving member 30 , the locking member 40 and the traction member 50 are all arranged in one-to-one correspondence. Then the number of fixed seats 10 can be two. The two fixed seats 10 are symmetrically arranged on the rear fork tube 2015. An operating part 20 and a driving part 30 are connected to two opposite sides of a fixed seat 10 in one-to-one correspondence. By operating the two symmetrically arranged operating parts 20, the force will be more even during adjustment, and the lock will be released more smoothly and smoothly.

Please refer to Figures 8 to 9 below. When the rear wheel rotation locking mechanism 100 is installed between the rear leg tube 2011 and the rear wheel 202, it and the rear wheel rotation locking mechanism 100 are installed between the rear fork tube 2015 and the rear wheel. The differences between 202 are:

The fixed seat 10 is fixed to the rear leg tube 2011 of the vehicle frame through its base 11 . In addition to the same structure and cooperation relationship as above, the structure and cooperation relationship of the fixed base 10, the operating member 20, the driving member 30, the locking member 40 and the traction member 50 can also be configured such that the driving member 30 is rotatably engaged with the fixed base 10. It is on one of the operating parts 20 and can rotatably abut against the pushing surface A of the other one. Among them, the pushing surface A is spiral-shaped. Specifically, the fixed base 10 or the operating member 20 may be provided with a threaded hole 24 corresponding to the external thread on the contact portion 31 of the driving member 30 . Then, as the operating member 20 rotates relative to the fixed base 10, the contact portion 31 of the driving member 30 enters and exits the threaded hole 24 under the action of the pushing surface A formed by the spiral internal thread in the threaded hole 24, so that it can be relatively fixed. The seat 10 rotates telescopically, and then The lock 40 is pulled to release or lock.

Specifically, when the fixed base 10, the operating member 20, the driving member 30, the locking member 40 and the pulling member 50 are two in one-to-one correspondence, the two fixed bases 10 can be separately provided on the two rear leg tubes 2011, and each operating member The number of threaded holes 24 on 20 is one, and the two traction members 50 are inserted into the rear leg tubes 2011 on both sides and connected with the corresponding driving members 30 .

When the fixed base 10 and the operating member 20 are provided with one corresponding one, and the driving member 30 , the locking member 40 and the traction member 50 are provided with two corresponding ones, the fixed base 10 can be fixed to the rear leg tube 2011 on one side, and the operating member 20 has There are two threaded holes 24 arranged at intervals. The two driving parts 30 are clamped on the fixed base 10 and contact the pushing surface A formed by the inner walls of the two threaded holes 24 in one-to-one correspondence. A traction part 50 is inserted through It is connected to a driving member 30 in the rear leg tube 2011 provided with the fixed seat 10, and another traction member 50 passes through the rear fork tube 2015 from the other rear leg tube 2011 and then penetrates into the rear leg tube 2011 provided with the fixed seat 10. , and then connected with another driving member 30. The two traction members 50 can be inserted into the rear leg tube 2011 and the rear fork tube 2015 as shown by the dotted lines in Figure 8 .

Finally, referring to Figure 10, the structure can also be simplified as follows: the driving member 30 is a steel wire rope, one end of which is fixedly connected to the operating member 20, and the other end of which is wound around the arc-shaped wire groove 25 of the operating member 20 and then connected to the locking member 40. Then the operating member 20 is pushed to rotate around the fixed base 10, which can drive the driving member 30 to wind around the arc-shaped wire groove 25 in the operating member 20 to drive the locking member 10 to move to the unlocking position; or along the The material is released into the wire trough 25 to drive the locking member 10 to move to the locking position.

Compared with the prior art, the rear wheel rotation locking mechanism 100 of the present invention includes a fixed base 10 fixed on the vehicle frame 201, an operating member 20 pivotally connected to the fixed base 10, and a driving member 30 and a locking member arranged in interlocking manner. The driving member 30 is movably inserted into any one of the fixed seat 10 and the operating member 20, and is abutted or fixedly connected with the other one. The locking member 40 is combined with the locking member 40 to prevent the vehicle frame 201 from facing the rear wheel 202. The direction of rotation is arranged so that by pressing the operating member 20 to rotate relative to the fixed base 10, the driving member 30 can be driven to move or move relative to the other under the action of the operating member 20 or the fixed base 10 that is fixedly connected or abutted with it. Rotate, thereby driving the locking member 40 to move to the unlocking position to release the restriction on the relative rotation between the rear wheel 202 and the frame 201. The rear wheel 202 can rotate relative to the frame 201 to the required use angle or folding angle. , for use or storage. The rear wheel rotation locking mechanism 100 of the present invention has a simple structure and is convenient to operate, so that the rear wheel 202 can freely switch between required angles, thereby effectively ensuring that the infant carrier 200 having the rear wheel rotation locking mechanism 100 Comfort and adaptability of use.

What is disclosed above is only the preferred embodiment of the present invention. Of course, it cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the patent scope of the present invention still fall within the scope of the present invention.

10: Fixed seat

11: Base

12: Pivot base

12a: Placement slot

12b: Groove

13: End cap

20: Operating parts

21:Socket hole

22: Pivot joint

23:Operation Department

30:Driving parts

31:Butt part

32: Positioning Department

50: Traction parts

60:First elastic member

100: Rear wheel rotation locking mechanism

121: Pivot hole

122:Through hole

131:Through hole

321: Card table

2015: rear fork tube

A: Push surface

Claims (19)

An infant carrier, including: a frame; wheels, which are rotatably connected to the frame through a connecting base, so that the connecting base and the wheel can rotate relative to the frame to change the direction of the wheel; A locking piece is provided in the frame and can move between a locking position and a releasing position. When the locking piece is in the locking position, it prevents the connecting base from rotating relative to the frame. The locking piece is in the locking position. The connecting seat is allowed to rotate relative to the vehicle frame in the unlocking position; and an operating part is provided on the vehicle frame, and a traction part is provided between the operating part and the locking part to allow the operating part to The operation of the component can drive the locking component to move via the pulling component, wherein the operating component has a first operating position corresponding to the locking position of the locking component and a second operating position corresponding to the releasing position of the locking component. ; wherein: the frame is provided with a fixed base, one end of the traction member is connected to a driving member, the driving member and the operating member are assembled in the fixed base, and the driving member is slidably connected to the An operating member is provided with an elastic member between the fixed base and the driving member. The infant carrier according to claim 1, wherein the frame includes two leg tubes and a fork tube, the fork tube is connected between the two leg tubes, and the operating member is provided on the fork tube. On the tube. The infant carrier according to claim 1, wherein the fixed seat includes a base and a pivot seat that are connected as one body, the base is fixed to the frame, and the operating member is pivoted to the pivot seat. In the groove provided in the center of the socket. The infant carrier according to claim 1, wherein the operating member is pivotally connected to the fixed base. The infant carrier according to claim 1, wherein the operating member has a push surface that is an inclined surface or a curved surface, and the driving member can slide on the push surface. The infant carrier of claim 5, wherein the first position when the driving member abuts on the pushing surface corresponds to the release position of the locking member, and the driving member abuts on the The second position of the pushing surface corresponds to the locking position of the locking piece. The infant carrier according to any one of claims 1 to 6, further comprising an elastic member connected to the locking member, the elastic member urging the locking member to move toward the locking position. An infant carrier includes: a frame; a first wheel and a second wheel. The first wheel is rotatably connected to the frame through a first connecting base, so that the first connecting base and the first The wheel can rotate relative to the frame to change the direction of the first wheel, and the second wheel is rotatably connected to the frame through a second connecting base, so that the second connecting base and the The second wheel can rotate relative to the frame to change the direction of the second wheel; a first locking piece and a second locking piece are both provided in the frame, and the first locking piece and the second locking piece are Each of the two locking members can be in a locked position and the unlocking position, wherein: when the first locking piece is in the locking position, it prevents the first connection base from rotating relative to the frame, and when the first locking piece is in the releasing position, it allows the third A connecting base rotates relative to the frame; when the second locking piece is in the locking position, it prevents the second connecting base from rotating relative to the frame; when the second locking piece is in the releasing position, it allows the The second connecting seat rotates relative to the vehicle frame; and an operating component is provided on the vehicle frame, a first traction component is provided between the operating component and the first locking component, and the operating component is connected to the vehicle frame. A second traction piece is provided between the second locking pieces, so that the operation of the operating piece can drive the first locking piece and the second traction piece respectively through the first traction piece and the second traction piece. The locking member moves, wherein the operating member has a first operating position corresponding to the locking positions of the first locking member and the second locking member, and a release position corresponding to the first locking member and the second locking member. The second operating position of the lock position. The infant carrier according to claim 8, wherein the frame includes two leg tubes and a fork tube, the fork tube is connected between the two leg tubes, the first connecting seat and the third Two connecting seats are rotatably connected to the two leg tubes respectively. The infant carrier according to claim 9, wherein the operating member is provided on one of the two leg tubes. The infant carrier according to claim 9, wherein the operating member is provided on the fork tube. The infant carrier according to claim 8, wherein the frame is provided with a fixed base, and the operating member is pivotally connected to the fixed base. The infant carrier according to claim 12, wherein the fixed seat includes a base and a pivot seat that are connected as one body, the base is fixed to the frame, and the operating member is pivoted to the pivot seat. In the groove provided in the center of the socket. The infant carrier according to claim 8, wherein a first driving member is connected to one end of the first traction member, a second driving member is connected to one end of the second traction member, and the first driving member and Each of the second driving members is slidably abutted against the operating member. The infant carrier according to claim 14, wherein the frame is provided with a fixed base, the first driving member, the second driving member and the operating member are all assembled in the fixed base, and the An elastic member is provided between each of the first driving member and the second driving member and the fixed base. The infant carrier according to claim 15, wherein the operating member is pivotally connected to the fixed base. The infant carrier according to claim 14, wherein the operating member is provided with a first pushing surface and a second pushing surface that are inclined or curved surfaces on opposite sides, and the first driving member can slide on the On the first pushing surface, the second driving member can slide on the second pushing surface. The infant carrier of claim 17, wherein the first position when the first driving member abuts on the first pushing surface corresponds to the release position of the first locking member, and the second When a driving member abuts the second position of the first pushing surface, it corresponds to the locking position of the first locking member. The infant carrier according to any one of claims 8 to 18, wherein each of the first locking part and the second locking part moves in the direction of the locking position by the action of an elastic part.

Images