TWI792100B - Rear wheel rotation locking mechanism and baby carrier - Google Patents

Abstract

The invention discloses a rear wheel rotation lock control mechanism and a baby carrier with the rear wheel rotation lock control mechanism. The rear wheel rotation lock control mechanism includes a fixing seat, an operating part, a driving part and a locking part, and the fixing seat is fixed on the vehicle. On the frame, the operating part is pivotally connected to the fixed seat, and the driving part is movably placed on either one of the fixed seat and the operating part, and is fixedly connected or abutted with the other of the two. The locking part and the driving part The parts are interlocked and arranged along the direction to prevent the relative rotation of the frame and the rear wheel; the operating part is operated to make it rotate relative to the fixed seat, so that the driving part is fixedly connected or abutted with it under the action of the operating part or the fixing part Move or rotate relative to the other, thereby driving the locking member to move to an unlocked position or a locked position that allows or limits the rotation of the rear wheel relative to the frame. The structure of the mechanism is simple and the operation is convenient, which effectively improves the comfort and adaptability of the infant carrier with the rear wheel rotation locking mechanism.

Description

Rear wheel rotation locking mechanism and baby carrier

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

For parents with children, when taking their children out for shopping or walking, they usually use a child carrier with wheels instead of holding them in their hands to reduce the burden on adults, and the child carrier also has a comfortable and safe ride. The advantages, therefore, make infant carriers more and more popular.

Existing infant carriages such as baby carriages and baby seats generally have a frame and wheels. The front wheels generally can roll relative to the frame 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 baby carrier, if the front and rear movement turns to the left and right parallel movement, because the rear wheels cannot rotate relative to the frame, they cannot pass directly. Wheels are switched between front and rear rolling and left and right rolling to achieve steering, but a larger turning space is required for steering, or the user lifts the entire infant carrier for steering, so it cannot well meet different uses Demand, low adaptability. In addition, although the market The rear wheels of some infant carriers can rotate relative to the frame, but the structure of the rotation control mechanism is relatively complicated and inconvenient to operate, which makes the structure of the entire infant carrier relatively complicated and affects the user's use.

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 the steering of the rear wheels, and a baby carrier with the rear wheel rotation locking mechanism to overcome the above-mentioned problems.

One of the objectives 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 the steering of the rear wheels, so as to ensure the comfort of infants riding in the infant carrier.

Another object of the present invention is to provide a baby carrier, which is equipped with a rear wheel rotation locking mechanism that is simple in structure, easy to operate, and can control the steering of the rear wheels, so as to ensure the safety of infants and young children riding in the baby carrier. comfort.

In order to achieve the above object, the present invention provides a rear wheel rotation locking mechanism, which is suitable for being assembled between the rotatably connected frame and the rear wheel of the infant carrier. The rear wheel rotation locking mechanism includes a fixing seat, an operating part, The driving part and the locking part, the fixing seat is fixed on the vehicle frame, the operating part is pivotally connected to the fixing seat, the driving part is movably placed on any one of the fixing seat and the operating part, and is connected with the other of the two. One is fixedly connected or abutted, and the locking part and the driving part are arranged in conjunction with each other, and along the direction that prevents the relative rotation of the frame and the rear wheel Arrangement; operating the operating part to make it rotate relative to the fixed seat, so that the driving part moves or rotates relative to the other under the action of the operating part or the fixed seat that is fixedly connected or abutted with it, thereby driving the locking part to move to allow or limit The unlocked or locked position in which the wheel rotates relative to the frame.

Preferably, the driving member is movably or rotatably clamped on either one of the fixed seat and the operating member, and is slidably or rotatably abutted against the pushing surface of the other of the two. .

Preferably, the pushing surface is an inclined surface or a curved surface.

Preferably, the shape of the slope is at least one of straight line, wedge, spiral and wave.

Preferably, when the driving member is in the first position abutting against the relatively high position of the pushing surface, the locking member moves to the unlocking position; when the driving member is in the second position abutting against the relatively low position of the pushing surface, the locking parts move to the locked position.

Preferably, the fixing seat is fixed on the rear fork tube of the vehicle frame or on the rear leg tube of the vehicle frame.

Preferably, the fixing seat, the operating part, the driving part and the locking part are provided in a one-to-one correspondence.

Preferably, the fixing seat is provided in a one-to-one correspondence with the operating member, and the driving member is provided in a one-to-one correspondence with the locking member.

Preferably, two driving parts are symmetrically arranged on a fixed seat, and the two The driving part abuts against two pushing surfaces on opposite sides of an operating part correspondingly.

Preferably, the fixed seat includes a base and a pivot seat connected as one, the base is fixedly connected to the rear fork tube of the vehicle frame or the rear leg tube of the vehicle frame, the operating part is pivotally connected to the opposite side of the pivot seat, and the driving part It is movably clamped on the opposite side of the pivot seat.

Preferably, the pivot seat is provided with a pivot hole for the pivot connection of the operating member and a penetration hole for the drive member to pass through.

Preferably, the pivot seat includes a placement slot with a penetration hole, one end of the drive member is movably engaged in the placement slot, and the other end of the drive member passes through the penetration hole to abut against the push surface of the operation member catch.

Preferably, the pivot seat is U-shaped, and an operating member is pivotally connected to a groove at the center of the pivot seat. Two mounting grooves are symmetrically provided on both side walls of the pivot seat, and the two driving parts are snapped into corresponding After passing through the corresponding piercing hole, it abuts against the two pushing surfaces provided on two opposite sides of the operating member.

Preferably, the fixing seat further includes an end cover, which is used to cover the placement groove.

Preferably, one end of the operating member is pivotally connected to the fixed seat to form a pivotal portion, and the other end of the operating member can rotate around the pivotal portion to form an operating portion.

Preferably, a pushing surface is provided on a side where the pivot joint is pivotally connected to the fixed seat.

Preferably, the rear wheel rotation locking mechanism of the present invention further includes a traction member, and the driving member and the locking member are connected through a traction member.

Preferably, the traction member is a steel wire rope.

Preferably, the driving member includes an abutting portion and a positioning portion that are integrally connected, the abutting portion abuts against the operating member, and the positioning portion is movably clamped on the fixing seat.

Preferably, the contact portion is cylindrical.

Preferably, the operating part or the fixing seat is provided with a wire groove for guiding the driving part.

Preferably, the rear wheel rotation locking mechanism of the present invention also includes a connection assembly, one end of the connection assembly is connected to the axle of the rear wheel, the other end of the connection assembly is rotatably connected to the rear leg tube of the vehicle frame, and the locking member is in a clearance fit The piercing groove at the nozzle of the rear leg pipe can be inserted into the limiting groove inserted in the connecting component or retracted from the limiting groove to the passing groove to limit or allow the rear wheels to move relative to each other. Rear tube swivel.

Preferably, the through groove and the limiting groove are arranged in a straight line.

Preferably, the connection assembly includes a connection base, a connection block and an adapter shaft installed at two opposite ends of the connection base, the connection block is connected to the wheel shaft, and the adapter shaft is rotatably installed in the connection seat, and along the radial direction of the wheel shaft Arranged so as to extend into the rear leg tube, the limiting groove is arranged along the radial direction of the wheel shaft and is located at the side of the adapter shaft.

Preferably, a shock-absorbing spring is also connected between the connection block and the connection seat along the radial direction of the wheel shaft.

Preferably, the rear wheel rotation locking mechanism of the present invention further includes a first elastic member, the first elastic member is arranged between the driving member and the fixed seat or between the operating member and the fixed seat, The constant drive drives the driving part to drive the locking part to move towards the locking position.

Preferably, the first elastic member is a compression spring or a torsion spring.

Preferably, the rear wheel rotation locking mechanism of the present invention further includes a second elastic member, the second elastic member is arranged between the locking member and the rear leg tube of the vehicle frame, and constantly drives the locking member to move toward the locking position.

Preferably, the second elastic member is a compression spring.

The present invention also provides a baby carrier, which includes a vehicle frame, a rear wheel rotatably connected to the vehicle frame, and a rear wheel rotation locking mechanism connected between the vehicle frame and the rear wheel. The rear wheel rotation locking mechanism is as described above. mentioned.

Compared with the prior art, the rear wheel rotation locking mechanism of the present invention includes a fixed seat fixed on the vehicle frame, an operating part pivotally connected to the fixed seat, and a driving part and a locking part arranged in linkage. It is placed on any one of the fixed seat and the operating part, and is fixedly connected or abutted against the other, and the combined locking part is arranged in a direction that prevents the relative rotation of the frame and the rear wheel, so that they can be opposed by pushing the operating part The rotation of the fixed seat can drive the driving part to move or rotate relative to the other under the action of the operating part or the fixed seat that is fixedly connected or abutted with it, so as to drive the locking part to move to the unlocking position, so as to release the relative locking of the rear wheel. The frame rotation is restricted, and the rear wheels can be rotated relative to the frame to a desired use angle or retraction angle for use or storage. The rear wheel rotation locking mechanism of the present invention is simple in structure and easy to operate, so that the rear wheels can be freely switched between required angles, thereby effectively ensuring the comfort of the infant carrier with the rear wheel rotation locking mechanism. Suitability and adaptability.

10: Fixed seat

11: Base

12: Pivot seat

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 groove

30: Driver

31: contact part

32: Positioning department

40: Locking piece

50: traction parts

60: the first elastic member

70: the second elastic member

80: Connecting components

81: Connecting seat

82: Connection block

83: Adapter shaft

84: spring

100: Rear wheel rotation locking mechanism

121: pivot hole

122: piercing hole

131: piercing hole

200: infant carrier

201: frame

202: rear wheel

203: front wheel

321: card table

811: limit slot

2011: rear tube

2012: Front tube

2013: Seatpost

2014: Fork tubes

2015: rear fork tube

2016: Putter

2017: Penetration slot

2021: Axle

A: Push surface

B: Pivot end

Other features and functions of the present invention will be clearly presented in the embodiments referring to the drawings, wherein: FIG. 1 is a schematic diagram of the rear wheel rotation locking mechanism of the present invention assembled on the rear fork tube of the infant carrier; FIG. 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 part of the present invention; Fig. 4 is a schematic diagram of the driving part of the present invention cooperating with the operating part in a locked state; A schematic diagram of the driving part and the operating part being in an unlocked state in cooperation with each other in the present invention; Fig. 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 in an unlocked state under the action of the traction member; Fig. 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; Fig. 9 is a schematic diagram of another structure of the operating member of the present invention; and Fig. 10 is a schematic diagram of another structure of the operating member of the present invention.

In order to describe the technical content, structural features, achieved goals and effects of the present invention in detail, the following will be described in detail in conjunction with the embodiments and accompanying drawings.

Please refer to FIG. 1 and FIG. 8 , the present invention discloses a rear wheel rotation locking mechanism 100 and a baby carrier 200 having the rear wheel rotation locking mechanism 100 , the baby carrier 200 includes but is not limited to, for example, a stroller, a baby 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 vehicle frame 201, two rear wheels 202 rotatably connected to the two rear legs 2011 of the vehicle frame 201, and the vehicle frame Two front tubes 2012 of 201 are rotatably connected to two front wheels 203 , and a rear wheel rotation locking mechanism 100 is connected between the vehicle frame 201 and the rear wheel 202 . Wherein, 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, so that the rotation of the rear wheel 202 relative to the rear leg tube 2011 is limited or allowed by the rear wheel rotation locking mechanism 100, so as to change the relative position between the two, such as the rear wheel 202 that will roll in the front and rear direction Turn to scroll left and right to meet different usage needs. Of course, the vehicle frame 201 of the present invention also includes a push rod 2016 pivotally connected to the rear leg tube 2011, and a hand push rod 2016 pivotally connected to the rear leg tube 2011 and the front leg tube. Components such as the seat tube 2013 between 2012, its specific structure and connection relationship are not the protection focus of the present invention, and will not be repeated here.

Please refer to Figures 1 to 7 below to describe in detail the situation that the rear wheel rotation locking mechanism 100 of the present invention is installed between the rear fork tube 2015 and the rear wheel 202: first refer to Figures 1 and 2, the rear wheel rotation lock The control mechanism 100 specifically includes a fixing seat 10 , an operating member 20 , a driving member 30 and a locking member 40 . The fixed seat 10 is fixed on the rear fork tube 2015 of the vehicle frame 201, the operating member 20 is pivotally connected to the fixed seat 10, and the driving member 30 is movably clamped on either one of the fixed seat 10 and the operating member 20. , and slidably abuts against the pushing surface A of the other of the two, the locking member 40 is interlocked with the driving member 30, and is arranged along the direction of preventing the rear wheel 202 from rotating relative to the rear leg tube 2011, specifically at the rear leg At the pivotal end B of the pipe 2011 and the rear wheel 202 . Operating the operating part 20 to make it rotate relative to the fixed seat 10, so that the driving part 30 moves relative to the fixed seat 10 or the operating part 20 under the action of the pushing surface A abutting against it, thereby driving the locking part 40 to move away from or close to the rear leg tube 2011 moves in the direction of the pivotal end B of the rear wheel 202 until it moves to an unlocked position or a locked position allowing or restricting the rotation of the rear wheel 202 relative to the frame 201 . Certainly, the driving member 30 can also be configured as other structures that are movably worn on either the fixing seat 10 or the operating member 20 .

Specifically, the rear wheel rotation locking mechanism 100 of the present invention further includes a traction member 50 through which the driving member 30 and the locking member 40 can be connected, so as to realize 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 then can move along the corresponding tube wall, so that the movement of the traction member 50 is guided and limited, and the movement is 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 arranged between the driving member 30 and the fixed seat 10 or between the operating member 20 and the fixed seat 10, and is constantly driven The driving member 60 drives the locking member 40 to move in a direction preventing the rear wheel 202 from rotating relative to the frame 201 , that is, the driving member 60 always drives the locking member 40 to reset to a locking position preventing 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 arranged between the locking member 40 and the rear leg tube 2011, and the second elastic member 70 constantly drives the locking member 40 moves in a direction preventing the rear wheel 202 from rotating relative to the frame 201 , that is, the locking member 40 is constantly driven to reset to a locking position preventing the rear wheel 202 from rotating relative to the frame 201 . The second elastic member 70 is a compression spring.

Please refer to FIG. 2 , in this embodiment, the fixed base 10 includes a base 11 and a pivot base 12 that are connected as one. On the opposite side of the seat 12 , the driving member 30 is movably engaged with the opposite side of the pivot seat 12 . Wherein, the pivot base 12 is provided with a pivot hole 121 for the pivot connection of the operating member 20 and a threading 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, and the operating member 20 is pivotally connected by a pivot shaft (not shown) that passes through the pivot hole 121 and the socket hole 21. on the pivot seat 12.

Specifically, the pivot seat 12 includes a placement slot 12a having a through hole 122, One end of the driving member 30 is movably engaged in the seating groove 12 a , and the other end of the driving member 30 passes through the through hole 122 to abut against the pushing surface A of the operating member 20 . More specifically, the driving member 30 includes an abutting portion 31 and a positioning portion 32 that are integrally connected. The abutting portion 31 abuts against the pushing surface A of the operating member 20 , and the positioning portion 32 is movably engaged with the fixed base 10 . on the pivot seat 12. The abutting portion 31 is specifically cylindrical, and the positioning portion 32 is provided with a clamping platform 321 connected to the traction member 50 , and one end of the traction component 50 is wound around the clamping platform 321 . Preferably, the fixed seat 11 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 joint seat 12 and the end cover 13, and the first elastic member 60 It can also be installed between the end cover 13 and the positioning part 32, and can also play a role in driving the locking member 40 to automatically reset to the locking position. Further, the end cover 13 or the pivot seat 12 may also be provided with a locking part (not shown in the figure) for positioning the driving member 30 at a desired driving position. In addition, the end cover 13 is also provided with a penetration 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 seat 12 is pivotally connected to the pivot seat 12 to form a pivot portion 22 , and the other end of the operating member 20 away from the pivot seat 12 can be rotated around the pivot joint. The part 22 rotates to form an operation part 23 . The pushing surface A is located on a side where the pivot portion 22 is pivotally connected to the pivot seat 12 of the fixing seat 10 . The pushing surface A is an inclined surface or a curved surface, and the shape of the inclined surface can be at least one of straight line, wedge, spiral and wave. Then when the operating member 20 is pressed down or pushed upward, under the action of the pushing surface A, the driving member 30 slides on the slope or curved surface, and then the locking member 40 can be pulled or pushed to make it away from or close to the pivot. Terminal B to unlock or lock, allowing or restricting the rear wheel 202 Rotate around the rear leg tube 2011. Specifically, when the driving member 30 slides to the first position abutting against the relatively high position of the pushing surface A, the locking member 40 moves up to disengage from the engagement with the pivot end B, and moves to release the relative position of the rear wheel 202. At the release position where the rotation of the frame 201 is limited, the first elastic member 60 and the second elastic member 70 are compressed; 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 operating part 20, the operating part 20 is pushed upward, so that when the driving part 30 is in the second position abutting against the relatively low position of the pushing surface A, the locking part 40 moves down to be engaged with the pivot end B, and is located behind the limit. The wheel 202 is in a locked position where the wheel 202 rotates relative to the frame 201 .

6 and 7, the rear wheel rotation locking mechanism 100 of the present invention also includes a connecting assembly 80, one end of the connecting assembly 80 is connected to the axle 2021 of the rear wheel 202, and the other end of the connecting assembly 80 is rotatably connected to the rear leg tube 2011. connection, the locking piece 40 is loosely fitted in the penetration groove 2017 at the nozzle of the rear leg tube 2011, and can be moved from the nozzle to be inserted into the limiting groove 811 of the connecting assembly 80 or withdrawn from the limiting groove 811 To pass through the 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 disposed on two opposite ends of the connection base 81 . The connecting block 82 is connected to the wheel shaft 2021 of the rear wheel 202 , and a spring 84 for shock absorption is also connected between the connecting block 82 and the connecting seat 81 along the radial direction of the wheel shaft 2021 . The adapter shaft 83 is rotatably installed in the connecting seat 81, and is arranged along the radial direction of the wheel shaft 2021 and can extend into the rear leg tube 2011 from the nozzle of the rear leg tube 2011, that is, the rear leg tube 2011 is sleeved on the adapter shaft 83 the upper side of the. Limiting slot 811 along the axle 2021 is arranged radially 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 relative to the rear leg tube 2011 around the transfer shaft 83 . Generally rotate 90. , that is, the rear wheel 202 can be changed from forward and backward movement to left and right translation.

Returning to Fig. 1 and Fig. 2, in the preferred embodiment of the present invention, the fixing seat 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. set up. When the number of the fixed seat 10 is one, two driving parts 30 are symmetrically arranged on one fixed seat 10, and the two driving parts 30 are respectively in contact with the two pushing surfaces A on the opposite side of an operating part 20, each A traction member 50 is connected between a driving member 30 and the locking member 40 . Then press the operation part 20 with one hand or one foot to realize the unlocking operation conveniently, and when the pressure is released, it will automatically reset to the locked state. The structure is simple and the operation is convenient.

Specifically, the fixed seat 10 is arranged at the center of the rear fork tube 2015, the pivot seat 12 is U-shaped, the operating member 20 is pivotally connected to the groove 12b at the center of the pivot seat 12, and the two pivot seats 12 Two seating grooves 12a are symmetrically arranged on the side wall, and the two driving parts 30 are snapped into the corresponding seating grooves 12a and pass through the corresponding piercing holes 122 to connect with the two pushing surfaces on two opposite sides of the operating part 20. A corresponds to contact, and the two traction elements 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 Smoothness, the fixed seat 10, the operating member 20, the driving member 30, the locking member 40 and the traction member 50 are all arranged in a one-to-one correspondence. Then the number of fixing seats 10 can be two, and the two fixing seats 10 are symmetrically arranged on the rear fork tube 2015, and an operating part 20 and a driving part 30 are connected to two opposite sides of a fixing seat 10 in a one-to-one correspondence, Then, by operating the two symmetrically arranged operating parts 20, the force is more uniform during adjustment, and the lock is more stable and smooth when released.

Please refer to FIGS. 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 difference between 202 is that: the fixing seat 10 is fixedly connected to the rear leg tube 2011 of the vehicle frame through its base 11 . The structure and cooperation relationship of the fixed seat 10, the operating part 20, the driving part 30, the locking part 40 and the traction part 50 can also be arranged as follows: the driving part 30 is rotatably clamped on the fixed seat 10. It is on one of the operating members 20 and can rotatably abut against the pushing surface A of the other of the two. Wherein, the pushing surface A is in a spiral shape. Specifically, the fixing base 10 or the operating member 20 may be provided with a threaded hole 24 corresponding to the external thread on the abutting portion 31 of the driving member 30 . Then as the operating member 20 rotates relative to the fixed seat 10, the abutting portion 31 of the driving member 30 enters and exits the threaded hole 24 under the action of the thrust surface A formed by the helical internal thread in the threaded hole 24, so that it can be relatively fixed. The seat 10 rotates telescopically, and then pulls the locking member 40 to realize unlocking or locking.

Specifically, when the fixed seat 10, the operating member 20, the driving member 30, the locking member 40 and the traction member 50 are two in one-to-one correspondence, the two fixed seats 10 can be separately arranged on the two rear legs. On the pipe 2011 , there is one threaded hole 24 on each operating member 20 , and the two traction members 50 pass through the rear leg pipe 2011 on both sides and are connected with the corresponding driving member 30 .

When the fixed seat 10 and the operating part 20 are set to one correspondingly, and the driving part 30, the locking part 40 and the traction part 50 are correspondingly set to two, the fixed seat 10 can be fixedly connected to the rear leg tube 2011 on one side, and the operating part 20 has The two threaded holes 24 arranged at intervals, the two driving parts 30 are clamped on the fixed seat 10 and abut against the pushing surface A formed by the inner walls of the two threaded holes 24 in one-to-one correspondence, and a traction part 50 penetrates It is connected with 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 another rear leg tube 2011 and then penetrates into the rear leg tube 2011 with the fixed seat 10 , and then connected with another driver 30 . The two traction elements 50 can be inserted into the rear leg tube 2011 and the rear fork tube 2015 as shown by the dotted lines in FIG. 8 .

Referring to Fig. 10 at last, 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 is connected to the locking member 40 after winding through the arc-shaped wire groove 25 of the operating member 20, Then push the operating part 20 to make it rotate around the fixed seat 10, so that the driving part 30 can be driven to wind up in the operating part 20 around the arc-shaped wire groove 25 to drive the locking part 10 to move to the unlocking position; or Feeding along the wire groove 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 seat 10 fixed on the vehicle frame 201, an operating member 20 pivotally connected to the fixed seat 10, and a driving member 30 arranged in linkage with the locking mechanism. Part 40, the driving part 30 is movably worn in the fixed The seat 10 and the operating member 20 are on any one of the operating member 20, and are abutted or fixedly connected with the other, and the locking member 40 is arranged along the direction of preventing the relative rotation of the vehicle frame 201 and the rear wheel 202, so that by pressing the operating member 20, the It rotates relative to the fixed seat 10, which can drive the driving member 30 to move or rotate relative to the other under the action of the operating member 20 or the fixed seat 10 that is fixedly connected or abutted with it, 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 be rotated relative to the frame 201 to a required use angle or folding angle for use or storage. The rear wheel rotation locking mechanism 100 of the present invention is simple in structure and easy to operate, so that the rear wheel 202 can freely switch between required angles, thereby effectively ensuring the safety of the infant carrier 200 with the rear wheel rotation locking mechanism 100 . The comfort and adaptability of use.

What is disclosed above is only a preferred embodiment of the present invention, and of course it cannot 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 seat

12a: placement slot

12b: Groove

13: End cap

20: Operating parts

21: socket hole

22: pivot joint

23: Operation Department

30: Driver

31: contact part

32: Positioning department

50: traction parts

60: the first elastic member

100: Rear wheel rotation locking mechanism

121: pivot hole

122: piercing hole

131: piercing hole

321: card table

2015: rear fork tube

A: Push surface

Claims (30)

A rear wheel rotation locking mechanism, which is suitable for being assembled between a rotatably connected frame and a rear wheel of a child carrier, wherein the rear wheel rotation locking mechanism includes: a fixing seat, an operating part, a driving part and The locking part, the fixing seat is fixed on the vehicle frame, the operating part is pivotally connected to the fixing seat, and the driving part is movably inserted between the fixing seat and the operating part on any one of them, and is fixedly connected or abutted against the other of the two, the locking member is interlocked with the driving member, and is in the direction of preventing the rear wheel and the frame from rotating Arrangement; operate the operating member to rotate relative to the fixed seat, so that the driving member moves or rotates relative to the other under the action of the operating member or the fixed seat that is fixedly connected or abutted with it, Therefore, the locking member is driven to move to one of an unlocking position allowing the rear wheel to rotate relative to the vehicle frame and a locking position restricting the rear wheel to rotate relative to the vehicle frame. The rear wheel rotation locking mechanism according to claim 1, wherein, the driving member is movably or rotatably clamped on any one of the fixing seat and the operating member, and is connected to the The pushing surface of the other of the two abuts slidably or rotatably. The rear wheel rotation locking mechanism according to claim 2, wherein the pushing surface is an inclined surface or a curved surface. The rear wheel rotation locking mechanism according to claim 3, wherein the shape of the slope is at least one of straight line, wedge, spiral and wave. The rear wheel rotation lock control mechanism according to claim 3, wherein when the driving member is in the first position abutting against the relatively high position of the pushing surface, the locking member moves to the unlocking position ; when the driving member is in the second position abutting against the relatively low position of the pushing surface, the locking member moves to the locking position. The rear wheel rotation locking mechanism according to claim 2, wherein the fixing seat is fixed on the rear fork tube of the vehicle frame or the rear leg tube of the vehicle frame. The rear wheel rotation lock control mechanism according to claim 6, wherein the fixing seat, the operating member, the driving member and the locking member are provided in a one-to-one correspondence. The rear wheel rotation locking mechanism according to claim 6, wherein the fixing seat is provided in one-to-one correspondence with the operating member, and the driving member is provided in a one-to-one correspondence with the locking member. The rear wheel rotation lock control mechanism according to claim 8, wherein two driving parts are symmetrically arranged on one of the fixing seats, and the two driving parts and the two opposite sides of the operating part The thrust face corresponds to the abutment. The rear wheel rotation lock control mechanism according to claim 6, wherein the fixed base includes a base and a pivot base connected as one, and the base is fixed to the rear fork tube of the vehicle frame or the vehicle frame The operating member is pivotally connected to the opposite side of the pivot seat, and the driving member is movably clamped to the opposite side of the pivot seat. The rear wheel rotation locking mechanism according to claim 10, wherein the pivot seat is provided with a pivot hole for the pivot connection of the operating member and a through hole for the drive member to pass through. The rear wheel rotation locking mechanism according to claim 11, wherein the pivot seat includes a placement slot with a through hole, and one end of the driving member is movably engaged in the placement slot, so The other end of the driving member passes through the penetration hole and abuts against the pushing surface of the operating member. The rear wheel rotation lock control mechanism according to claim 12, wherein, the pivot joint seat is U-shaped, and one of the operating members is pivotally connected to a groove at the center of the pivot joint seat, and the pivot joint The two side walls of the seat are symmetrically provided with two placement grooves, and the two driving parts are snapped into the corresponding placement grooves and pass through the corresponding through-holes, and are connected with the operating parts. The two pushing surfaces on two opposite sides are correspondingly abutted. The rear wheel rotation locking mechanism according to claim 12, wherein the fixing seat further includes an end cover, and the end cover is used to cover the seating slot. The rear wheel rotation lock control mechanism according to claim 1, wherein one end of the operating member is pivotally connected to the fixing base to form a pivot joint, and the other end of the operating member can be rotated around the pivot The connecting part rotates to form an operating part. The rear wheel rotation lock control mechanism according to claim 15, wherein the pushing surface is provided on the side where the pivot joint is pivotally connected to the fixing seat. The rear wheel rotation locking mechanism according to claim 1, further comprising a traction member, the driving member and the locking member are connected through a traction member. The rear wheel rotation locking mechanism according to claim 17, wherein the traction member is a steel wire rope. The rear wheel rotation lock control mechanism according to claim 2, wherein the driving member includes an abutting part and a positioning part connected as one, the abutting part abuts against the operating part, and the positioning part can It is moved and clamped on the fixed seat. The rear wheel rotation locking mechanism according to claim 19, wherein the abutting portion is cylindrical. The rear wheel rotation lock control mechanism according to Claim 1, wherein a wire groove for guiding the driving member is provided on the operating member or the fixing seat. The rear wheel rotation locking mechanism according to claim 1, further comprising a connection assembly, one end of the connection assembly is connected to the axle of the rear wheel, and the other end of the connection assembly is connected to the rear foot of the vehicle frame The tubes are rotatably connected, and the locking piece is inserted into the insertion groove at the nozzle of the rear leg tube in a loose fit, and can be moved from the nozzle to be inserted into the limiting groove of the connecting component or The limiting groove is retracted into the through groove to limit or allow the rotation of the rear wheel relative to the rear leg tube. The rear wheel rotation locking mechanism according to claim 22, wherein the through groove and the limiting groove are arranged in a straight line. The rear wheel rotation locking mechanism according to claim 22, wherein the connection assembly includes a connection base, a connection block and an adapter shaft installed at two opposite ends of the connection base, and the connection block is connected to the wheel shaft , the adapter shaft is rotatably installed in the connecting seat, and is arranged along the radial direction of the wheel shaft so as to extend into the rear leg tube, and the limiting groove is arranged along the radial direction of the wheel shaft Arranged and located at the side of the adapter shaft. The rear wheel rotation locking mechanism according to claim 24, wherein a spring for shock absorption is also connected between the connecting block and the connecting seat along the radial direction of the wheel shaft. The rear wheel rotation locking mechanism according to claim 1, further comprising a first elastic member, the first elastic member is arranged between the driving member and the fixing seat or between the operating member and the Between the fixing seats, the first elastic member constantly drives the driving member to drive the locking member to move toward the locking position. The rear wheel rotation locking mechanism according to claim 26, wherein the first elastic member is a compression spring or a torsion spring. The rear wheel rotation lock control mechanism according to claim 1, further comprising a second elastic member, the second elastic member is arranged between the locking member and the rear leg tube of the vehicle frame, the second The elastic member constantly drives the locking member to move toward the locking position. The rear wheel rotation locking mechanism according to claim 28, wherein the second elastic member is a compression spring. A baby carrier, comprising a vehicle frame, a rear wheel rotatably connected to the vehicle frame, and a rear wheel rotation locking mechanism connected between the vehicle frame and the rear wheel, wherein the rear wheel rotates The locking mechanism is as described in any one of claims 1 to 29.

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