CN211196328U - Wheel support and child stroller - Google Patents

Abstract

The utility model provides a wheel support and children's shallow relates to shallow technical field. The wheel support comprises a built-in part and a U-shaped fork body, wherein the fork body comprises two supporting arms and a connecting part connected between the two supporting arms, and the connecting part and the two supporting arms form an installation space; the fork body is a hard piece; the built-in piece inlays in installation space, and is connected with connecting portion. The stroller comprises a wheel, a frame body and the wheel support, wherein the wheel is positioned between two supporting arms of the wheel support, the axle center of the wheel is provided with a wheel axle, and two ends of the wheel axle are correspondingly connected with the two supporting arms one by one; the built-in part of the wheel bracket is connected with the bottom of the frame body. The wheel support has high supporting strength.

Description

Wheel support and child stroller

Technical Field

The utility model belongs to the technical field of the shallow technique and specifically relates to a wheel support and children's shallow is related to.

Background

The cart is widely applied to the life of people, such as a children cart, a wheelchair, a shopping cart in a supermarket and the like, wheels convenient to move are arranged at the bottom of the cart, the wheels and the frame body are required to be connected together through a support, and the wheels can rotate relative to the support; the support connection supports between wheel and frame body, supports frame body and this internal carrier, and current support is generally by plastic integrated into one piece, and support intensity is relatively poor, and when carrier was heavier, the easy deformation of support influences the use of shallow.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a wheel support and children's shallow to the support intensity of alleviating the wheel support that exists among the prior art is relatively poor, bears the weight of the thing when heavier, the easy technical problem who deforms of wheel support.

In a first aspect, embodiments provide a fork body comprising a built-in piece and a U-shape, the fork body comprising two support arms and a connecting portion connected between the two support arms, the connecting portion forming a mounting space with the two support arms; the fork body is a hard piece;

the built-in part is embedded in the installation space and is connected with the connecting part.

In an alternative embodiment, the yoke body is an integrally formed piece of cemented carbide; or the fork body is a hard metal piece which is integrally formed.

In an optional implementation manner, the built-in part includes a fixing seat and a connecting seat, the fixing seat is fixedly connected to the connecting portion, the connecting seat is pivoted to the connecting portion through a pivot shaft, the connecting seat is disposed at the top of the fixing seat, and a reset part capable of driving the fixing seat to reset is connected between the fixing seat and the connecting seat.

In an optional implementation manner, the portions of the connecting seat located at two sides of the pivot shaft are respectively an abutting portion and a resetting portion, and the resetting piece is connected between the resetting portion and the fixing seat and can push the fixing seat to rotate so as to drive the fixing seat to abut against the abutting portion.

In an alternative embodiment, the reset member is a compression spring; the bottom of the connecting seat is provided with a first limiting groove, and the top end of the pressure spring is inserted in the first limiting groove;

and/or a second limiting groove is formed in the top of the fixing seat, and the bottom end of the pressure spring is inserted into the second limiting groove.

In an optional embodiment, one of the fixing seat and the connecting part is provided with a first plug connector, and the other one is provided with a first insertion groove, and the first plug connector is inserted into the first insertion groove in a matching manner.

In an optional embodiment, one of the fixing base and the connecting base is provided with a second plug connector, the other one of the fixing base and the connecting base is provided with a second plug groove, the second plug connector is movably plugged in the second plug groove, and the plugging direction of the second plug connector is perpendicular to the axial direction of the pivot shaft.

In an alternative embodiment, a universal shaft is fixed on the top of the connecting seat.

In an alternative embodiment, the connection socket is injection molded and the cardan shaft is integrally formed with the connection socket as an embedded part.

In a second aspect, an embodiment provides a stroller, which includes a wheel, a frame body, and the wheel support of any one of the foregoing embodiments, wherein the wheel is located between two support arms of the wheel support, a wheel axle is arranged at a wheel center of the wheel, and two ends of the wheel axle are connected with the two support arms in a one-to-one correspondence manner; the built-in part of the wheel bracket is connected with the bottom of the frame body.

The utility model discloses wheel support and children's shallow's beneficial effect includes:

the utility model provides a wheel support and children's shallow, wherein, the wheel support includes the fork body that is used for being connected with the wheel and plays the supporting role and is used for the built-in spare of being connected with the frame body, and the fork body includes the connecting portion that is used for being connected with the built-in spare and two support arms that are used for supporting; wherein, children's shallow includes above-mentioned wheel support.

When the stroller is used, the wheels are pivoted to the two supporting arms of the wheel support through the wheel shafts, the frame body is arranged at the top of the built-in part of the wheel support, the wheel support is supported between the wheels and the frame body, a user transmits thrust to the wheel shafts through the wheel supports by pushing the frame body, the wheels are stressed and roll on the ground, and therefore the stroller can be displaced.

The two supporting arms of the wheel support simultaneously support the two sides of the wheel, so that the supporting firmness of the wheel support and the stability of the wheel connected to the wheel support can be effectively improved, and the condition that the rolling direction is deviated or even blocked due to the deviation or inclination of the wheel is correspondingly reduced; in addition, in the wheel support, the fork body mainly plays a supporting role, is made of hard materials, and has better supporting strength than plastic parts, so that the integral supporting strength of the wheel support is improved, and the stress deformation of the frame body in the use process is reduced; in addition, the built-in part is embedded into the mounting space of the fork body, the fork body coats the built-in part, the fork body can protect and reinforce the built-in part, and the influence of the stress deformation of the built-in part on the use condition of the baby stroller is reduced on the basis of realizing the connection effect of the built-in part.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic view of a wheel carrier according to an embodiment of the present invention;

fig. 2 is a schematic view of a second perspective view of a wheel carrier according to an embodiment of the present invention;

FIG. 3 is a schematic view of the yoke of FIG. 1;

fig. 4 is a schematic view of a built-in part of a wheel carrier according to an embodiment of the present invention;

FIG. 5 is a schematic view of the fixing base shown in FIG. 4, wherein an elastic member is installed in the second limiting groove of the fixing base;

FIG. 6 is a schematic view of the fixing base shown in FIG. 4;

fig. 7 is a schematic view of the connecting seat in fig. 4, wherein an elastic member is installed in the first limiting groove of the connecting seat;

fig. 8 is a schematic view of the connecting socket in fig. 4.

Icon: 100-fork body; 110-a first support arm; 120-a second support arm; 130-a connecting portion; 131-a first plug groove; 132-a first connection aperture; 133-a first pivot hole; 140-installation space; 150-a reinforcement groove; 160-third connection hole; 200-a built-in part; 300-a fixed seat; 310-a first plug connector; 320-a second plug connector; 330-a second limit groove; 340-second connection hole; 350-reserving a connecting hole; 360-weight reduction grooves; 370-an abutment boss; 400-a connecting seat; 410-a second mating groove; 420-a first limit groove; 430-a third limiting groove; 440-second pivot hole; 450-an abutment groove; 460-a bevel; 500-a reset piece; 600-cardan shaft.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the utility model is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element to be referred must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Some embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.

The present embodiment provides a wheel support, as shown in fig. 1-4, comprising a built-in part 200 and a U-shaped fork body 100, wherein the fork body 100 comprises two support arms and a connecting part 130 connected between the two support arms, and the connecting part 130 and the two support arms form a mounting space 140; the fork body 100 is a hard piece; the insert member 200 is inserted into the installation space 140 and connected to the connection portion 130.

The embodiment also provides a baby stroller, which comprises a wheel, a frame body and the wheel support, wherein the wheel is positioned between the two supporting arms of the wheel support, the wheel center of the wheel is provided with a wheel shaft, and the two ends of the wheel shaft are correspondingly connected with the two supporting arms one by one; the built-in part 200 of the wheel bracket is connected to the bottom of the frame body.

The wheel support and the child stroller provided by the embodiment, wherein the wheel support comprises a fork body 100 which is used for being connected with a wheel and playing a supporting role, and a built-in part 200 which is used for being connected with a frame body, the fork body 100 comprises a connecting part 130 which is used for being connected with the built-in part 200, and two supporting arms which are used for supporting; wherein, children's shallow includes above-mentioned wheel support.

When the stroller is used, the wheels are pivoted to the two supporting arms of the wheel support through the wheel shafts, the frame body is arranged at the top of the built-in part 200 of the wheel support, the wheel support is supported between the wheels and the frame body, a user pushes the frame body to transmit pushing force to the wheel shafts through the wheel supports, the wheels are stressed and roll on the ground, and therefore the stroller can be displaced.

The two supporting arms of the wheel support simultaneously support the two sides of the wheel, so that the supporting firmness of the wheel support and the stability of the wheel connected to the wheel support can be effectively improved, and the condition that the rolling direction is deviated or even blocked due to the deviation or inclination of the wheel is correspondingly reduced; in addition, in the wheel support, the fork body 100 mainly plays a supporting role, and the fork body 100 is made of hard materials, so that the supporting strength of the wheel support is superior to that of a plastic part, the integral supporting strength of the wheel support is improved, and the stress deformation of a frame body in the use process is reduced; in addition, the built-in part 200 is embedded into the installation space 140 of the fork body 100, the fork body 100 covers the built-in part 200, the fork body 100 can protect and reinforce the built-in part 200, and the occurrence of the influence of the stress deformation of the built-in part 200 on the use condition of the baby stroller is reduced on the basis of realizing the connection effect of the built-in part 200.

Specifically, as shown in fig. 3, the two support arms of the wheel support are the first support arm 110 and the second support arm 120, the bottom end portions of the first support arm 110 and the second support arm 120 are respectively provided with third connection holes 160 corresponding to each other, and two ends of the wheel axle are respectively inserted into the two third connection holes 160. Optionally, a reinforcing groove 150 may be disposed on each of the first support arm 110 and the second support arm 120 to improve the strength of the first support arm 110 and the second support arm 120.

Optionally, in this embodiment, the fork body 100 may be a hard alloy piece formed integrally; alternatively, the fork 100 is a hard metal piece formed integrally. The specific material of the fork body 100 is, on one hand, compared with the fork body 100 formed by fixedly connecting the connecting part 130 and the two supporting arms, the connecting part 130 and the two supporting arms of the fork body 100 are integrally formed, so that the overall strength of the fork body 100 is higher, and correspondingly, the supporting strength of the fork body 100 is higher; specifically, the fork 100 may be formed by bending an alloy plate or a metal plate, or may be integrally formed by casting. Specifically, the fork body 100 is made of aluminum alloy or iron, and the aluminum alloy and the iron are low in price on the basis of ensuring the supporting strength of the fork body 100, so that the production cost of the wheel support is reduced. Specifically, when the fork 100 is made of an aluminum alloy material, the supporting strength of the wheel support is five times that of the plastic wheel support in the prior art.

Alternatively, the insert 200 may be made of a material different from that of the fork 100, for example, the insert 200 may be made of a plastic material. The plastic material is different from the fork body 100 material, a damping vibration attenuation effect can be formed between the plastic material and the fork body 100 material, when the bottom surface is uneven, the ground transmits the vibration force to the wheel, the fork body 100, the built-in part 200 and the frame body in sequence, wherein the vibration strength of the vibration force transmitted from the fork body 100 to the built-in part 200 is weakened, so that the vibration force transmitted to the frame body and a bearing object in the frame body is effectively reduced, the vibration resistance of the stroller is improved, and the comfort of children is correspondingly improved.

Optionally, in this embodiment, as shown in fig. 4, the built-in component 200 includes a fixing base 300 and a connecting base 400, the fixing base 300 is fixedly connected to the connecting portion 130, the connecting base 400 is pivotally connected to the connecting portion 130 through a pivot shaft, the connecting base 400 is disposed at the top of the fixing base 300, and a reset component 500 capable of driving the fixing base 300 to reset is connected between the fixing base 300 and the connecting base 400. Here, it is a specific form of the built-in part 200, wherein the connecting seat 400 is used for connecting with the frame body, and the connecting seat 400 is pivoted to the connecting part 130, so that the connecting seat 400 and the fixing seat 300 can rotate relatively around the pivoting part, when the ground is uneven, the whole formed by the wheel, the supporting arm and the fixing seat 300 can rotate relatively to the connecting seat 400 to adapt to the poor road condition, thereby reducing the vibration force transmitted to the frame body and bearing the child therein when the road condition is poor, and further improving the comfort level of the child; and in the process that the fixing seat 300 and the connecting seat 400 rotate relatively, the reset piece 500 applies acting force for driving the fixing seat 300 to reset to the fixing seat 300 so as to reduce the rotation degree of the fixing seat 300 and correspondingly ensure the support of the wheels to the frame body, when the road condition is restored to be flat, the reset piece pushes the fixing seat 300 to be restored to the original position, and the wheel bracket normally supports the frame body.

Preferably, first support arm and second support arm can parallel arrangement, and the axial of pin joint axle sets up with the length direction of first support arm is perpendicular, and during the concrete use, the connecting seat can be similar to the level setting, then the pin joint axle also is similar to the level setting.

Optionally, in this embodiment, the portions of the connecting seat 400 located at the two sides of the pivot shaft are respectively the abutting portion and the resetting portion, and the resetting piece 500 is connected between the resetting portion and the fixing seat 300, and can push the fixing seat 300 to rotate, so as to drive the fixing seat 300 to abut against the abutting portion. Here, a specific connection form between the connection seat 400 and the fixing seat 300 is that when the ground is flat, the reset piece 500 pushes the fixing seat 300 to abut against the connection seat 400; when the ground is uneven, the wheels, the fork body 100 and the fixed seat 300 rotate around the pivot shaft, and the part of the fixed seat 300, which is overlapped with the connecting seat 400, deviates from the connecting seat 400 to rotate so as to adapt to road conditions and reduce the vibration force transmitted to the frame body; when the ground surface returns to be flat, the restoring member 500 pushes the fixing base 300 to rotate reversely until the fixing base 300 returns to the original position and abuts against the connecting base 400. Specifically, as shown in fig. 3, a first pivot hole 133 may be disposed on the connecting portion 130, as shown in fig. 4, a second pivot hole 440 is disposed on the connecting base 400, a pivot shaft sequentially passes through the first pivot hole 133 and the second pivot hole 440, and the pivot shaft is in clearance fit with the first pivot hole 133 and the second pivot hole 440, so as to realize the pivot connection between the connecting base 400 and the connecting portion 130.

Specifically, as shown in fig. 4, an abutment boss 370 protruding upward may be disposed at the top of the fixing base 300, an abutment groove 450 corresponding to the abutment boss 370 may be disposed at the bottom of the connecting base 400, and the abutment boss 370 may be inserted into the abutment groove 450. The matching of the abutting boss 370 and the abutting groove 450 can limit the relative position of the connecting seat 400 and the fixing seat 300, and can limit the initial position of the fixing seat 300 to limit the rotating position of the fixing seat 300; specifically, the fixed seat 300 can rotate in an angle range of 8-10 °.

Specifically, in this embodiment, the restoring member 500 may be a compression spring; as shown in fig. 7 and 8, the bottom of the connection seat 400 may be provided with a first limiting groove 420, and the top end of the pressure spring is inserted into the first limiting groove 420; as shown in fig. 5 and 6, a second limiting groove 330 may be disposed at the top of the fixing base 300, and the bottom end of the pressure spring is inserted into the second limiting groove 330. Here is a specific form of the reset piece 500, the compression spring is clamped between the connecting seat 400 and the fixed seat 300, and the compression spring in a compressed state applies a downward pushing force to the fixed seat 300, and when the ground surface is flat, the compression spring pushes the fixed seat 300 to abut against the abutting part of the connecting seat 400; when the ground is uneven, the wheels, the fork body 100 and the fixed seat 300 correspondingly rotate, the pressure spring is further compressed, and the pressure spring has a buffering effect on the rotation of the fixed seat 300 in the compression process so as to improve the rotation stability of the fixed seat 300, the fork body 100 and the wheels; when the ground surface returns to be flat, the pressure spring pushes the fixing base 300 to rotate and return to the original position, and the fixing base 300 abuts against the abutting part of the connecting base 400 again. Wherein, first spacing groove 420 and second spacing groove 330 can carry on spacingly to the position that the pressure spring set up between connecting seat 400 and fixing base 300, and do not influence the axial deformation of pressure spring.

The pressure spring is limited by the first limiting groove 420 and the second limiting groove 330, or only the first limiting groove 420 is arranged at the bottom of the connecting seat 400, and the bottom end of the pressure spring is connected with the fixed seat 300 in other ways; similarly, the second limiting groove 330 may be only disposed at the top of the fixing base 300, and the top end of the pressure spring is connected with the connecting base 400 in other manners, such as clamping, plugging, and fixing.

In this embodiment, one of the fixing base 300 and the connecting portion 130 may be provided with a first plug 310, the other one is provided with a first inserting groove 131, and the first plug 310 is inserted into the first inserting groove 131 in a matching manner. When the fixed seat 300 is installed, the first plug connector 310 is matched and plugged with the first plugging groove 131, and the installation positions of the fixed seat 300 and the connecting part 130 can be preliminarily positioned, so that the installation position precision of the fixed seat 300 and the connecting part 130 is improved, and the subsequent installation and connection of connecting parts are facilitated; in addition, the first plugging connector 310 is plugged in the first plugging groove 131 in a matching manner, so as to achieve a connection effect, so as to improve the connection firmness between the fixing base 300 and the connecting base 400. Specifically, as shown in fig. 3 and 4, the connecting portion 130 is provided with a first inserting groove 131, the fixing base 300 is provided with a first inserting connector 310, and as shown in fig. 1 and 2, the first inserting connector 310 is inserted into the first inserting groove 131. Alternatively, as shown in fig. 3, a first connection hole 132 may be formed in the connection portion 130 of the yoke 100, as shown in fig. 4, a second connection hole 340 corresponding to the first connection hole 132 is formed in the fixing base 300, and after the connection portion 130 is passed through the first connection hole 132 and the second connection hole 340 in sequence by using a riveting member, the fixing base 300 is riveted with the connection portion 130; specifically, riveting piece eccentric settings is in connecting seat 400, and the riveting piece is close to butt portion, and this setting can increase the portion that resets, and when the portion that resets rotates great angle, the turned angle of butt portion is less, on the basis that improves the damping effect that resets 500 and reset, reduces the interference that butt portion rotation probably exists.

In this embodiment, as shown in fig. 4, a connection hole 350 may be further disposed in the fixing base 300. When the connection firmness of the fixing base 300 and the connecting portion 130 cannot meet the requirement, a hole body corresponding to the reserved connecting hole 350 may be disposed on the connecting portion 130, and a connecting member is used to penetrate through the hole body and the reserved connecting hole 350 to reconnect the fixing base 300 and the connecting portion 130, so as to improve the connection firmness of the fixing base 300 and the connecting portion 130; when the connection firmness between the fixing base 300 and the connecting portion 130 can meet the requirement through the above connection, the reserved connecting hole 350 is not left, so that the usability of the fixing base 300 is improved.

Alternatively, as shown in fig. 4 to 6, a weight-reducing groove 360 may be provided in the holder 300. The weight reduction grooves 360 are arranged on the basis that the connection effect and the connection strength of the fixing seat 300 are not affected, so that the weight of the fixing seat 300 can be reduced, the weight of the wheel support is correspondingly reduced, materials required for producing the fixing seat 300 are reduced, and the production cost of the wheel support is reduced.

In this embodiment, one of the fixing base 300 and the connecting base 400 may be provided with a second plugging slot 320, the other one is provided with a second plugging slot 410, the second plugging slot 410 is movably plugged with the second plugging head 320, and the plugging direction of the second plugging head 320 is perpendicular to the axial direction of the pivot shaft. When the fixing base 300 and the connecting base 400 relatively rotate around the pivot shaft, the second insertion groove 410 is matched with the second insertion head 320 in an insertion manner, the insertion direction of the second insertion head 320 is vertical to the axial direction of the pivot shaft, and the second insertion head 320 is inserted into the second insertion groove 410 in a matching manner, so that interference can not be generated on rotation of the fixing base 300, and the relative rotation position of the fixing base 300 and the connecting base 400 can be limited and guided, so that the connection position precision of the fixing base 300 and the connecting base 400 is improved, and the position precision of resetting of the fixing base 300 is improved. Specifically, as shown in fig. 4, the second plug 320 is disposed on the fixing base 300, and the second inserting groove 410 is disposed on the connecting base 400; in addition, in order to reduce interference between the rotation of the connecting socket 400 and the connecting part 130 and the fixing base 300, as shown in fig. 4, 7 and 8, a sidewall of the abutting part of the connecting socket 400 may be provided with a slope 460, and the slope 460 may be inclined inward from top to bottom.

In this embodiment, as shown in fig. 1 and fig. 2, a universal shaft 600 may be fixedly connected to the top of the connecting base 400. Be connected through cardan shaft 600 between connecting seat 400 and the frame body, and cardan shaft 600 can frame body circumferential direction relatively to realize the circumferential direction of wheel support and wheel, thereby improve the rotation convenience of wheel, the corresponding use convenience that improves children's shallow.

Specifically, in the present embodiment, the connection base 400 may be injection molded, and the universal shaft 600 is integrally formed with the connection base 400 as an embedded part. Here is the concrete connection structure of cardan shaft 600 and connecting seat 400, cardan shaft 600 is integrated into one piece with connecting seat 400 as the built-in fitting, on one hand, can realize the rigid coupling of cardan shaft 600 and connecting seat 400 while preparing connecting seat 400, thus reduce the subsequent connection step, simplify the preparation process; on the other hand, the firm in connection degree of cardan shaft 600 and connecting seat 400 improves greatly, correspondingly improves the support strength of wheel support.

Alternatively, as shown in fig. 4, a third limiting groove 430 may be formed on the top surface of the connecting seat 400, and accordingly, the frame body is provided with a limiting boss matched with the third limiting groove 430, and the limiting boss can extend and contract. When the wheel needs to be locked, the limiting boss can be inserted into the third limiting groove 430, so that the connecting seat 400 and the frame body cannot rotate relatively; when the steering function of the wheels needs to be used, the limiting bosses are arranged to contract and separate from the third limiting grooves 430, and the connecting seat 400 and the frame body can rotate relatively.

Specifically, the wheel support can be used as a front wheel support of the baby stroller and can also be used as a rear wheel support of the baby stroller.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the embodiments of the present invention.

Claims (10)

1. A wheel carrier, characterized in that it comprises a built-in part (200) and a U-shaped yoke (100), said yoke (100) comprising two support arms and a connecting part (130) connected between the two support arms, said connecting part (130) forming with the two support arms a mounting space (140); the fork body (100) is a hard piece;

the built-in part (200) is embedded in the installation space (140) and connected with the connecting part (130).

2. A wheel carrier according to claim 1, characterized in that the fork body (100) is an integrally formed piece of cemented carbide; or the fork body (100) is a hard metal piece which is integrally formed.

3. The wheel carrier according to claim 1 or 2, characterized in that the built-in part (200) comprises a fixing seat (300) and a connecting seat (400), the fixing seat (300) is fixedly connected with the connecting part (130), the connecting seat (400) is pivotally connected to the connecting part (130) through a pivot shaft, the connecting seat (400) is arranged at the top of the fixing seat (300), and a reset part (500) capable of driving the fixing seat (300) to reset is connected between the fixing seat (300) and the connecting seat (400).

4. The wheel carrier as claimed in claim 3, wherein the connecting seat (400) is located at two sides of the pivot shaft and is respectively a contact portion and a reset portion, and the reset member (500) is connected between the reset portion and the fixing seat (300) and can push the fixing seat (300) to rotate, thereby driving the fixing seat (300) to contact with the contact portion.

5. A wheel carrier according to claim 4, characterised in that the return element (500) is a compression spring; the bottom of the connecting seat (400) is provided with a first limiting groove (420), and the top end of the pressure spring is inserted in the first limiting groove (420);

and/or a second limiting groove (330) is formed in the top of the fixing seat (300), and the bottom end of the pressure spring is inserted into the second limiting groove (330).

6. The wheel carrier as claimed in claim 3, characterized in that one of the fastening base (300) and the connecting part (130) is provided with a first plug-in connection (310) and the other with a first plug-in connection groove (131), the first plug-in connection (310) being adapted to be plugged into the first plug-in connection groove (131).

7. The wheel carrier as claimed in claim 4, wherein one of the fixing base (300) and the connecting base (400) is provided with a second insertion-connection joint (320), the other one is provided with a second insertion-connection groove (410), the second insertion-connection joint (320) is movably inserted into the second insertion-connection groove (410), and the insertion direction of the second insertion-connection joint (320) is perpendicular to the axial direction of the pivot shaft.

8. The wheel carrier as claimed in claim 3, wherein a cardan shaft (600) is fixed to the top of the connecting base (400).

9. The wheel carrier according to claim 8, characterized in that the connecting socket (400) is injection molded and the cardan shaft (600) is integrally molded with the connecting socket (400) as an embedment.

10. A stroller, comprising a wheel, a frame body and the wheel support of any one of claims 1 to 9, wherein the wheel is located between two supporting arms of the wheel support, a wheel axle is arranged at the wheel center of the wheel, and two ends of the wheel axle are connected with the two supporting arms in a one-to-one correspondence manner; the built-in part (200) of the wheel bracket is connected with the bottom of the frame body.

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