Wheel assembly and vehicle

Abstract

The utility model discloses a kind of wheel assembly and carrier, wheel assembly includes mounting seat, with rotating shaft and can be detachably connected in mounting seat's wheel and movably connected in mounting seat's operating element, the rotating shaft is rotatably connected with mounting seat;Mounting seat is movably equipped with directional element, wheel is equipped with cooperation portion, directional element is when with The cooperation portion cooperation restricts the wheel seat rotates around the rotating shaft;Mounting seat is movably equipped with clamping element, rotating shaft is equipped with clamping portion, clamping element is when with The clamping portion cooperation restricts rotating shaft axial movement;The operating element is respectively with directional element and clamping element cooperation, the operating element when along first direction movement drives directional element movement and with cooperation portion each other cooperation, when along second direction movement drives clamping element movement and separates from clamping portion, the first direction with The second direction is two directions of dissimilarity, wheel orientation and the operation of dismounting wheel is simple.

Description

Technical Field

[0001] This utility model relates to a wheel assembly and a vehicle having the wheel assembly. Background Technology

[0002] Strollers, trailers, and other portable vehicles provide convenience for users to carry children, people with mobility impairments, pets, and other items. Currently, at least one set of wheels at the bottom of these vehicles uses swivel wheels. In some usage scenarios, it is necessary to change the orientation of this swivel wheel assembly, thus requiring an internal orientation mechanism. However, the inclusion of this orientation mechanism often makes it difficult to easily detach or install the swivel wheel assembly from the vehicle's support frame, making wheel replacement inconvenient and resulting in a larger packaging size. Utility Model Content

[0003] The purpose of this invention is to provide a wheel assembly with a novel structure.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is: a wheel assembly, the wheel assembly comprising: A wheel, the wheel including a wheel seat, a wheel body rotatably connected to the wheel seat about a wheel axle, and a rotation shaft fixed to the wheel seat; Mounting base, the wheel is detachably connected to the mounting base, wherein the rotating shaft is rotatably connected to the mounting base about its own axis; A directional mechanism, comprising a directional member movably disposed on the mounting base and a mating portion disposed on the wheel seat, the directional member being configured to restrict the wheel seat from rotating about the rotation axis when it engages with the mating portion; A quick-release mechanism includes a locking member movably disposed on the mounting base and a locking portion disposed on the rotating shaft. The locking member is configured to restrict axial movement of the rotating shaft relative to the mounting base when it engages with the locking portion. An operating component is movably connected to the mounting base, and the operating component is capable of engaging with both the directional component and the engaging component. The operating member is configured to drive the directional member to move and engage with the mating part when moving relative to the mounting base in a first direction, and to drive the engaging member to move and disengage from the engaging part when moving relative to the mounting base in a second direction, wherein the first direction and the second direction are two opposite directions.

[0005] In some embodiments, the operating member is rotatably disposed on the mounting base about a rotation center line, the rotation center line extending parallel to or collinear with the axis of rotation, wherein the first direction and the second direction are opposite in rotation.

[0006] In some embodiments, the operating element includes a rotating base and a first driving structure and a second driving structure disposed on the rotating base. The rotating base is rotatably disposed on the mounting base about the rotation center line. The first driving structure is configured to cooperate with the directional member, and the second driving structure is configured to cooperate with the engaging member.

[0007] In some embodiments, a limiting mechanism is provided between the mounting base and the rotating base. The limiting mechanism includes a limiting member and a limiting part that cooperate with each other. The limiting member and the limiting part are respectively disposed on the mounting base and the rotating base. When the limiting member and the limiting part cooperate with each other, the rotating base rotates relative to the mounting base within a preset angle range around the rotation center line, and the second drive structure disengages from the engaging member. When the limiting member and the limiting part disengage, the rotating base can rotate relative to the mounting base in the second direction, thereby engaging the second drive structure with the engaging member.

[0008] In some embodiments, the limiting portion is a limiting groove formed on the mounting base, the limiting member is slidably disposed on the rotating base along the radial direction of the rotating base, the limiting member has a sliding portion that can be slidably inserted into the limiting groove, the limiting member moves on the rotating base to a first position and a second position, in the first position the sliding portion is disposed in the limiting groove; in the second position the sliding portion disengages from the limiting groove.

[0009] In some embodiments, the directional member is slidably disposed on the mounting base, the direction of sliding of the directional member is parallel to the extension direction of the axis of rotation, the directional member has a directional portion for cooperating with the mating portion, when the directional portion cooperates with the mating portion, the wheel seat is fixed relative to the mounting base, and the directional mechanism further includes a first elastic member that provides the force required for the directional member to move toward the mating portion.

[0010] Specifically, the first driving structure includes a driving boss with a driving inclined surface. The driving inclined surface is an arc-shaped surface with the rotation center line as the rotation center. The driving inclined surface has a first end and a second end located at opposite ends along its length. The driving inclined surface extends obliquely from the first end to the second end, gradually approaching the mating part. The directional member has an abutting part that abuts against the driving boss in the direction toward the mating part. When the abutting part abuts against the first end, the directional member disengages from the mating part. When the abutting part abuts against the second end, the directional member and the mating part cooperate to fix the wheel seat relative to the mounting base. During the rotation of the operating member relative to the mounting base in the first direction, the abutting part moves from the first end to the second end.

[0011] In some embodiments, the drive boss further includes a slot at the first end, and the abutment engages with the slot when it is located on the first end to restrict the movement of the directional member along the drive ramp.

[0012] In some embodiments, the engaging portion is an annular groove disposed on the outer periphery of the rotating shaft, the engaging member has a engaging end that can be inserted into or disengaged from the annular groove radially along the rotating shaft, wherein the engaging member is rotatably or slidably disposed on the mounting base, and the quick-release mechanism further includes a second elastic member that provides a force to the engaging member to cause the engaging end to move toward the annular groove.

[0013] In some embodiments, the second drive structure includes a pushing portion, which pushes the engaging member to move as the operating member moves along the second direction, causing the engaging end to move away from the annular groove.

[0014] In some embodiments, the mounting base includes a first base body and a second base body that cooperate with each other in a vertical direction, forming a mounting cavity between the first base body and the second base body. The second base body is provided with a mounting hole for the rotating shaft to pass through axially. The mounting hole communicates with the mounting cavity. When the rotating shaft is rotatably inserted into the mounting hole about its own axis, at least a portion of it is located in the mounting cavity. The directional member and the engaging member are respectively movably installed in the mounting cavity. The rotating seat is rotatably disposed between the first base body and the second base body about the rotation center line. Both the first driving structure and the second driving structure are located in the mounting cavity.

[0015] In some embodiments, the rotating seat is annular, and the first driving structure and the second driving structure extend radially inward from the inner wall of the rotating seat, and the first driving structure and the second driving structure are spaced apart along the circumference of the rotating seat.

[0016] The purpose of this utility model is to provide a vehicle. To achieve the above objective, the technical solution adopted by this utility model is: a vehicle, including a vehicle support, and further including the aforementioned wheel assembly, wherein the wheel assembly is connected to the vehicle support via the mounting base.

[0017] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art: The wheel assembly of this utility model has a wheel that is rotatably connected to the mounting base around a rotation axis, thus enabling omnidirectional rotation. The provided directional mechanism can also convert the wheel to a directional state. The wheel assembly also has a quick-release mechanism, allowing the wheel to be detached by releasing the engagement between the locking member and the locking part. The wheel assembly has an operating member; driving the operating member in a first direction causes the directional member and the locking part to engage, thereby converting the wheel to a directional state. Driving the operating member in a second direction different from the first direction causes the locking member to disengage from the locking part, thereby releasing the connection between the wheel and the mounting base, and thus detaching the wheel. Whether converting the wheel to a directional state or disengaging the wheel, the user only needs to drive the operating member, making operation simple. Attached Figure Description

[0018] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Appendix Figure 1 This is a schematic diagram of a vehicle according to a specific embodiment of the present utility model; Appendix Figure 2 This is a schematic diagram of the wheel assembly and part of the vehicle support frame in Embodiment 1; Appendix Figure 3 For the appendix Figure 2 Partially exploded diagram; Appendix Figure 4 For the appendix Figure 3 A schematic diagram of some of the components; Appendix Figure 5 A schematic diagram illustrating the operation of driving the wheel assembly to transition to an oriented state; Appendix Figure 6 This is a schematic diagram showing the state of the directional component and the wheel seat when the wheel assembly is in a non-directional state. Appendix Figure 7This is a schematic diagram showing the state of the directional component and the wheel seat when the wheel assembly is in the oriented state. Appendix Figure 8 A diagram illustrating the process of removing the wheel; Appendix Figure 9 For the appendix Figure 8 A schematic diagram after longitudinal sectioning; Appendix Figure 10 This is a schematic diagram of the wheel assembly and part of the vehicle support frame in Example 2; Appendix Figure 11 For the appendix Figure 10 Partially exploded diagram; In the attached diagrams: 100, wheel assembly; 101, front wheel assembly; 102, rear wheel assembly; 200, vehicle bracket; 201, push handle; 300, seat; 1, wheel; 11, wheel seat; 111, mating part; 12, axle; 13, wheel body; 14, rotating shaft; 141, engaging part; 2, mounting base; 20, mounting cavity; 21, first seat body; 22, second seat body; 221, limiting groove; 222, mounting hole; 223. 31. Slide groove; 311. Orienting component; 312. Abutting part; 32. First elastic component; 41. Engaging component; 411. Engaging end; 412. Driving part; 42. Second elastic component; 5. Operating component; 51. Rotating seat; 52. Driving boss; 521. Driving inclined surface; 522. Slot; 53. Pushing part; 60. Through hole; 61. Limiting component; 611. Sliding part; 612. Pressing part; 62. Third elastic component. Detailed Implementation

[0020] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art. It should be noted that the description of these embodiments is for the purpose of aiding understanding the present invention, but does not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0021] In this document, the terms “front,” “rear,” “left,” “right,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship observed by the user pushing the vehicle. They are used only for the convenience of describing this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0022] Example 1: See Figure 1 The illustrated vehicle includes a vehicle support 200 and a wheel assembly 100, the wheel assembly 100 being disposed at the bottom of the vehicle support 200 to enable movement of the vehicle. In this embodiment, see [reference needed]. Figures 2 to 4As shown, the wheel assembly 100 includes a wheel 1, a mounting base 2, and a directional mechanism. The wheel 1 includes a wheel seat 11, a wheel body 13 rotatably connected to the wheel seat 11 about a wheel axle 12, and a rotating shaft 14 fixed to the wheel seat 11. The wheel assembly 100 is connected to the carrier bracket 200 via the mounting base 2. The rotating shaft 14 is rotatably connected to the mounting base 2 about its own axis. In this embodiment, the rotating shaft 14 extends vertically, and the wheel 1 is a universal wheel. The directional mechanism includes a directional member 31 movably disposed on the mounting base 2 and a mating part 111 disposed on the wheel seat 11. When the directional member 31 engages with the mating part 111, it restricts the rotation of the wheel seat 11 about the rotating shaft, preventing the wheel 1 from rotating omnidirectionally, and placing the wheel 1 in a directional state.

[0023] In this embodiment, the wheel 1 is detachably connected to the mounting base 2. The wheel assembly 100 includes a quick-release mechanism, which includes a locking member 41 movably disposed on the mounting base 2 and a locking portion 141 disposed on the rotating shaft 14. When the locking member 41 engages with the locking portion 141, it restricts the axial movement of the rotating shaft 14 relative to the mounting base 2, thereby ensuring that the wheel 1 is connected to the mounting base 2. When the locking member 41 disengages from the locking portion 141, the rotating shaft 14 can move axially relative to the mounting base 2, thereby enabling the wheel 1 to be detached from the mounting base 2.

[0024] In this embodiment, the wheel assembly 100 further includes an operating member 5, which is movably connected to the mounting base 2. The operating member 5 can cooperate with the directional member 31 and the engaging member 41. The operating member 5 is configured to drive the directional member 31 to move relative to the mounting base 2 in a first direction, thereby engaging with the engaging part 111 and converting the wheel 1 to a directional state. When the operating member 5 moves relative to the mounting base 2 in a second direction, it can drive the engaging member 41 to move and disengage from the engaging part 141, thereby releasing the wheel 1 from the mounting base 2. The wheel 1 can then be removed from the mounting base 2 for replacement or repair. Since the first and second directions are opposite, the user can easily achieve both directional and disassembly of the wheel 1 by driving the operating member 5 relative to the mounting base 2.

[0025] Specifically, the operating element 5 is rotatably mounted on the mounting base 2 about a rotation center line. The rotation center line extends parallel to or collinear with the axis of rotation 14. In this embodiment, the axis of rotation 14 extends collinearly with the rotation center line. The user drives the operating element 5 to rotate relative to the mounting base 2 to orient and disassemble the wheel 1. In this embodiment, the first direction and the second direction of rotation are opposite. The user rotates the operating element 5 in the first direction to orient the wheel 1, and rotates the operating element 5 in the opposite direction to disengage the engaging element 41 from the engaging part 141, thereby enabling the disassembly of the wheel 1. See also Figure 5As shown in the figure, the direction indicated by the arrow is the first direction. In this embodiment, rotating the operating component 5 counterclockwise can orient the wheel 1. See also Figure 8 As shown in the figure, the direction indicated by the arrow is the second direction. In this embodiment, rotating the operating member 5 clockwise allows for the disassembly of the wheel 1. In other embodiments, the operating member 5 can be rotated clockwise to orient the wheel 1, and counterclockwise to disassemble the wheel 1. In some embodiments, the rotation center line intersects with the axis of rotation 14. In other embodiments, the operating member 5 is slidably connected to the mounting base 2, and the orienting and disassembly of the wheel 1 are achieved by driving the operating member 5 to slide.

[0026] In this embodiment, the operating component 5 includes a rotating base 51 and a first driving structure and a second driving structure disposed on the rotating base 51. The rotating base 51 is rotatably disposed on the mounting base 2 around the rotation center line. The first driving structure can cooperate with the directional component 31, and the second driving structure can cooperate with the engaging component 41.

[0027] Specifically, in this embodiment, the directional member 31 is slidably disposed on the mounting base 2, and the sliding direction of the directional member 31 is parallel to the extension direction of the axis of rotation 14. The directional member 31 has a directional portion 311 for cooperating with the mating portion 111. When the directional portion 311 and the mating portion 111 are in cooperation, the wheel seat 11 is fixed relative to the mounting base 2. The directional mechanism also includes a first elastic member 32 that provides the force required for the directional member 31 to move toward the mating portion 111. Under the drive of the first elastic member 32, the directional member 31 can automatically move toward the mating portion 111 and achieve mutual cooperation, and the force provided by the first elastic member 32 can maintain the directional member 31 and the mating portion 111 in the state of mutual cooperation.

[0028] In this embodiment, see Figure 6 , Figure 7 As shown, the mating part 111 is an insertion hole provided on the wheel seat 11. When the directional part 311 of the directional member 31 is inserted into the insertion hole, the wheel seat 11 and the mounting base 2 are locked together circumferentially along the rotation axis 14, thereby achieving the orientation of the wheel 1. When the directional part 311 of the directional member 31 disengages from the insertion hole, the wheel seat 11 can rotate relative to the mounting base 2 around the axis of rotation 14, and the wheel 1 is in a non-directional state, and the wheel 1 is a swivel wheel.

[0029] In this embodiment, the first driving structure includes a driving boss 52, and the driving boss 52 has a driving inclined surface 521, see [link / reference] Figure 4As shown, the driving inclined surface 521 is an arc-shaped surface with the rotation center line as the rotation center. The driving inclined surface 521 has a first end and a second end located at opposite ends along its length. The driving inclined surface 521 extends obliquely from the first end to the second end, gradually approaching the mating part 111. In this embodiment, the directional member 31 is slidably disposed vertically, the mating part 111 is located at the lower part of the directional member 31, and the driving inclined surface 521 extends obliquely in the vertical direction. The first end is the upper end of the driving inclined surface 521, and the second end is the lower end of the driving inclined surface 521.

[0030] In this embodiment, the directional member 31 has an abutment portion 312, which abuts against the drive boss 52 along the direction toward the mating portion 111. When the abutment portion 312 abuts against the first end, the directional member 31 disengages from the mating portion 111, and the wheel 1 is a swivel wheel, allowing the wheel body 13 to rotate omnidirectionally. When the abutment portion 312 abuts against the second end, the directional member 31 and the mating portion 111 cooperate to fix the wheel seat 11 relative to the mounting base 2. During the process of the abutment portion 312 changing from abutting against the first end to abutting against the second end, the abutment portion 312 slides along the drive ramp 521. Specifically, see Figure 6 , Figure 7 As shown, the abutting part 312 is a protruding ridge that extends from the main body of the directional member 31 to one side. The abutting part 312 extends parallel to the rotation axis 14. The lower part of the abutting part 312 abuts against the driving boss 52. Under the force of the first elastic member 32, the lower part of the abutting part 312 and the driving boss 52 always remain in abutting state.

[0031] In this embodiment, during the rotation of the operating member 5 relative to the mounting base 2 along the first direction, the abutment portion 312 moves from the first end to the second end, during which the abutment portion 312 slides along the driving inclined surface 521. In the non-directional state, the first end of the driving boss 52 cooperates with the abutment portion 312 to restrict the movement of the directional member 31, preventing the directional member 31 from engaging with the mating portion 111 under the drive of the first elastic member 32. During the rotation of the operating member 5 along the first direction, the first end disengages from the directional member 31, the restriction is eliminated, and the directional member 31 can move downward. The driving inclined surface 521 can guide the directional member 31, causing the directional member 31 to gradually approach the mating portion 111 until the abutment portion 312 abuts against the second end, and the directional portion 311 of the directional member 31 and the mating portion 111 engage with each other.

[0032] In this embodiment, when the wheel 1 is in a directional state, rotating the operating member 5 in the second direction can release the directional state of the wheel 1. Specifically, during the rotation of the operating member 5, the abutment part 312 slides in cooperation with the driving inclined surface 521. Driven by the driving inclined surface 521, the directional member 31 moves upward, causing the directional part 311 to gradually separate from the cooperating part 111 until the abutment part 312 moves to abut against the first end, and the directional part 311 disengages from the cooperating part 111.

[0033] In this embodiment, the driving boss 52 further includes a slot 522 located at the first end. When the abutment portion 312 is positioned on the first end, it engages with the slot 522 to restrict the movement of the directional member 31 along the driving inclined surface 521 and maintain the stability of the directional mechanism. See also Figure 4 and Figure 6 As shown, the slot 522 is located at the upper end of the drive inclined surface 521. The slot 522 is recessed downward from the first end. When the abutment part 312 moves to the first end, the abutment part 312 can be inserted into the slot 522, thereby preventing the directional member 31 from moving circumferentially along the rotation axis 14 and improving the stability of the directional mechanism.

[0034] In this embodiment, the engaging portion 141 is an annular groove provided on the outer periphery of the rotating shaft 14, and the engaging member 41 has a engaging end 411, which can be inserted into or disengaged from the annular groove radially along the rotating shaft 14. When the engaging end 411 is inserted into the annular groove, see... Figure 8 , Figure 9 As shown, the engaging member 41 can prevent the rotating shaft 14 from moving axially. When the engaging end 411 disengages from the annular groove, the rotating shaft 14 can move axially.

[0035] In some embodiments, the engaging member 41 is rotatably disposed on the mounting base 2. During the rotation of the operating member 5 in the second direction, the second driving structure can drive the engaging member 41 to rotate, thereby causing the engaging end 411 to disengage from the annular groove. In other embodiments, the engaging member 41 is slidably disposed on the mounting base 2. During the rotation of the operating member 5 in the second direction, the second driving structure can drive the engaging member 41 to slide, thereby causing the engaging end 411 to disengage from the annular groove.

[0036] In this embodiment, the quick-release mechanism further includes a second elastic member 42 that provides force to the engaging member 41, causing the engaging end 411 to move toward the annular groove. When the engaging end 411 aligns with the annular groove, under the drive of the second elastic member 42, the engaging end 411 can automatically insert into the annular groove. Under the force of the second elastic member 42, the engaging end 411 can be stably maintained in the state of being inserted into the annular groove, thereby maintaining the connection between the wheel 1 and the mounting base 2.

[0037] In this embodiment, the second driving structure includes a pushing part 53. During the movement of the operating member 5 along the second direction, the pushing part 53 pushes the engaging member 41 to move, causing the engaging end 411 to move away from the annular groove. See also Figure 8 , Figure 9 As shown, the engaging member 41 has a driving part 412, which is located on the path of the pushing part 53 rotating about the rotation center line. Thus, during the rotation of the operating member 5, the pushing part 53 can push the engaging member 41, causing the engaging member 41 to move away from the rotation axis 14. In some embodiments, after the wheel 1 is disassembled, the engaging member 41 can be reset under the drive of the second elastic member 42, and simultaneously, the engaging member 41 can drive the operating member 5 to reset.

[0038] In this embodiment, a limiting mechanism is provided between the mounting base 2 and the rotating base 51. The limiting mechanism includes a limiting member 61 and a limiting part that cooperate with each other, and the limiting member 61 and the limiting part are respectively disposed on the mounting base 2 and the rotating base 51. When the limiting member 61 and the limiting part cooperate with each other, the rotating base 51 rotates relative to the mounting base 2 within a preset angle range around the rotation center line, and the second drive structure disengages from the engaging member 41. When the limiting member 61 disengages from the limiting part, the rotating base 51 can rotate relative to the mounting base 2 in a second direction, thereby engaging the second drive structure with the engaging member 41. On the one hand, the limiting mechanism restricts the rotation range of the operating member 5 through the cooperation of the limiting member 61 and the limiting part; on the other hand, the limiting mechanism can be used to prevent the user from accidentally driving the operating member 5 to move in the second direction when adjusting the orientation of the wheel 1, thereby causing the wheel 1 to be accidentally disassembled from the mounting base 2. By setting the limiting mechanism, the wheel 1 cannot be disassembled when the limiting member 61 is not disengaged from the limiting part.

[0039] In this embodiment, the limiting part is a limiting groove 221 formed on the mounting base 2. The limiting member 61 is slidably disposed on the rotating base 51 along the radial direction of the rotating base 51. The limiting member 61 has a sliding part 611 that can be slidably inserted into the limiting groove 221. The limiting member 61 moves on the rotating base 51 between a first position and a second position. In the first position, the sliding part 611 is disposed in the limiting groove 221. The limiting groove 221 limits the rotation angle and rotation direction of the operating member 5 by restricting the movement of the sliding part 611. In the second position, the sliding part 611 disengages from the limiting groove 221, and the user can drive the operating member 5 to rotate in the second direction and release the engagement between the locking member 41 and the rotating shaft 14.

[0040] In this embodiment, see Figure 4As shown, the mounting base 2 is provided with a sliding groove 223, which is radially disposed on one side of the limiting groove 221. The sliding groove 223 communicates with the limiting groove 221 and extends from the limiting groove 221 in a second direction. When the limiting member 61 moves to the second position, the sliding part 611 enters the sliding groove 223 and can slide within the sliding groove 223, thereby enabling the operating member 5 to rotate relative to the mounting base 2 in the second direction.

[0041] In this embodiment, see Figure 4 As shown, the limiting mechanism includes a third elastic element 62, which provides the force required to drive the limiting member 61 to move towards the first position. The user presses the limiting member 61, causing it to overcome the force of the third elastic element 62, thereby driving the limiting member 61 to switch to the second position. In this embodiment, when the limiting member 61 moves from the first position to the second position, the limiting member 61 moves radially inward, and the third elastic element 62 provides the force driving the limiting member 61 to move radially outward.

[0042] In this embodiment, the mounting base 2 includes a first base body 21 and a second base body 22 that cooperate with each other in the vertical direction, forming a mounting cavity 20 between the first base body 21 and the second base body 22. The second base body 22 is provided with a mounting hole 222 for the rotating shaft 14 to pass through axially. The mounting hole 222 communicates with the mounting cavity 20, and when the rotating shaft 14 is rotatably inserted into the mounting hole 222 around its own axis, at least a portion of it is located within the mounting cavity 20. In this embodiment, the directional member 31 and the engaging member 41 are movably mounted in the mounting cavity 20.

[0043] In this embodiment, the rotating seat 51 is rotatably disposed between the first seat body 21 and the second seat body 22 around the rotation center line, and both the first driving structure and the second driving structure are located in the mounting cavity 20.

[0044] In this embodiment, see Figure 4 As shown, the rotating seat 51 is annular in shape, and the first driving structure and the second driving structure extend radially inward from the inner wall of the rotating seat 51, and the first driving structure and the second driving structure are spaced apart along the circumference of the rotating seat 51.

[0045] In this embodiment, the first seat 21 is located above the second seat 22, the directional member 31 is movably disposed on the first seat 21, and the limiting part is disposed on the second seat 22. In this embodiment, the rotating seat 51 is sleeved on at least part of the outer side of the second seat 22, the rotating seat 51 is provided with a through hole 60, and the limiting member 61 has a pressing part 612. When the limiting member 61 is in the first position, at least part of the pressing part 612 can extend out from the through hole 60. When the limiting mechanism is released, the user presses the pressing part 612 extending out from the through hole, thereby driving the limiting member 61 to move to the second position.

[0046] In this embodiment, the wheel assembly 100 includes a front wheel assembly 101 disposed on the front side of the bottom of the vehicle support 200 and a rear wheel assembly 102 disposed on the rear side of the bottom of the vehicle support 200, with the front wheel assembly 101 and the rear wheel assembly 102 spaced apart in the front-rear direction.

[0047] In this embodiment, the front wheel assembly 101 is configured according to the structure of the wheel assembly 100 described above, and the rear wheel assembly 102 is a fixed wheel that cannot rotate in all directions. In some embodiments, the rear wheel assembly 102 is configured according to the structure of the wheel assembly 100 described above.

[0048] The vehicle in this embodiment is a stroller. The vehicle support 200 includes a push handle 201, which the user can use to move the vehicle. Specifically, the vehicle in this embodiment is a child stroller, and the vehicle support 200 is provided with a seat 300 in which a child can sit.

[0049] Example 2: See Figure 10 , Figure 11 As shown, the difference between this embodiment and embodiment 1 is that in this embodiment, the limiting member 61 is movably disposed on the first seat 21, a part of the structure of the carrier bracket 200 is sleeved on the outside of the first seat 21, and the carrier bracket 200 is provided with a through hole 60. When the limiting member 61 is in the first position, at least part of the pressing part 612 can extend out from the through hole 60.

[0050] In summary, in the vehicle of the above embodiment, the wheel 1 of the wheel assembly 100 is a swivel wheel. By driving the operating member 5 to rotate counterclockwise, the wheel 1 can be converted to a directional state. By pressing the pressing part 612 of the limiting member 61, the limiting member 61 is disengaged from the limiting groove 221 and enters the sliding groove 223, which releases the rotation limitation of the operating member 5. Then, rotating the operating member 5 clockwise can release the engagement between the engaging member 41 and the engaging part 141, thereby disconnecting the wheel 1 from the mounting base 2. When converting the directional state of the wheel 1 and removing the wheel 1, the user only needs to rotate the operating member 5, making the operation simple.

[0051] It is understood that the same or similar parts in the above embodiments can be referred to each other, and the contents not described in detail in some embodiments can be referred to the same or similar contents in other embodiments.

[0052] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art. In the event of any contradiction or inconsistency between the definitions used herein and those contained in other published documents, the definitions used herein shall prevail.

[0053] It should also be noted that "rotational connection" in the above embodiments refers to pivot connection, unless the context clearly indicates other rotational connection methods.

[0054] As indicated in this specification and claims, the terms "comprising" and "including" only indicate the inclusion of explicitly identified steps and elements, and these steps and elements do not constitute an exclusive list, and the method or apparatus may also include other steps or elements.

[0055] It can be further understood that in this disclosure, "multiple" refers to two or more, and other quantifiers are similar. "And / or" describes the relationship between related objects, indicating that three relationships can exist; for example, A and / or B can represent: A alone, A and B simultaneously, and B alone. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship. The singular forms "a," "the," and "the" are also intended to include the plural forms unless the context clearly indicates otherwise.

[0056] It is further understood that the terms "first," "second," etc., are used to describe various types of information, but this information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another, and do not indicate a specific order or degree of importance. In fact, the expressions "first," "second," etc., are completely interchangeable. For example, without departing from the scope of this disclosure, first information can also be referred to as second information, and similarly, second information can also be referred to as first information.

[0057] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made based on the essence of this utility model should be covered within the scope of protection of this utility model.

Claims

1. A wheel assembly, characterized in that: The wheel assembly includes: A wheel, the wheel including a wheel seat, a wheel body rotatably connected to the wheel seat about a wheel axle, and a rotation shaft fixed to the wheel seat; Mounting base, the wheel is detachably connected to the mounting base, wherein the rotating shaft is rotatably connected to the mounting base about its own axis; A directional mechanism, comprising a directional member movably disposed on the mounting base and a mating portion disposed on the wheel seat, the directional member being configured to restrict the wheel seat from rotating about the rotation axis when it engages with the mating portion; A quick-release mechanism includes a locking member movably disposed on the mounting base and a locking portion disposed on the rotating shaft. The locking member is configured to restrict axial movement of the rotating shaft relative to the mounting base when it engages with the locking portion. An operating component is movably connected to the mounting base, and the operating component is capable of engaging with both the directional component and the engaging component. The operating member is configured to drive the directional member to move and engage with the mating part when moving relative to the mounting base in a first direction, and to drive the engaging member to move and disengage from the engaging part when moving relative to the mounting base in a second direction, wherein the first direction and the second direction are two opposite directions.

2. The wheel assembly according to claim 1, characterized in that: The operating element is rotatably mounted on the mounting base about a rotation center line, which extends parallel to or collinear with the axis of rotation, wherein the first direction and the second direction are opposite in rotation.

3. The wheel assembly according to claim 2, characterized in that: The operating component includes a rotating base and a first driving structure and a second driving structure disposed on the rotating base. The rotating base is rotatably disposed on the mounting base about the rotation center line. The first driving structure can cooperate with the directional component, and the second driving structure can cooperate with the engaging component.

4. The wheel assembly according to claim 3, characterized in that: A limiting mechanism is provided between the mounting base and the rotating base. The limiting mechanism includes a limiting member and a limiting part that cooperate with each other. The limiting member and the limiting part are respectively disposed on the mounting base and the rotating base. When the limiting member and the limiting part cooperate with each other, the rotating seat rotates relative to the mounting seat within a preset angle range around the rotation center line, and the second driving structure disengages from the locking member; when the limiting member and the limiting part disengage, the rotating seat can rotate relative to the mounting seat in the second direction so that the second driving structure cooperates with the locking member.

5. The wheel assembly according to claim 4, characterized in that: The limiting part is a limiting groove formed on the mounting base. The limiting member is slidably disposed on the rotating base along the radial direction of the rotating base. The limiting member has a sliding part that can be slidably inserted into the limiting groove. The limiting member moves on the rotating seat to a first position and a second position. In the first position, the sliding part is engaged in the limiting groove; in the second position, the sliding part disengages from the limiting groove.

6. The wheel assembly according to claim 3, characterized in that: The directional member is slidably disposed on the mounting base, and the direction of sliding of the directional member is parallel to the extension direction of the axis of rotation. The directional member has a directional portion for cooperating with the mating portion. When the directional portion cooperates with the mating portion, the wheel seat is fixed relative to the mounting base. The directional mechanism further includes a first elastic member that provides the force required for the directional member to move toward the mating portion. The first driving structure includes a driving boss, and the driving boss has a driving inclined surface. The driving inclined surface is an arc-shaped surface with the rotation center line as the center of rotation. The driving inclined surface has a first end and a second end located at opposite ends along its length direction. The driving inclined surface gradually extends towards the mating part from the first end to the second end. The directional member has a stop portion that abuts against the drive boss in the direction toward the mating portion. When the stop portion abuts against the first end, the directional member disengages from the mating portion; when the stop portion abuts against the second end, the directional member and the mating portion engage to fix the wheel seat relative to the mounting base. During the rotation of the operating member relative to the mounting base along the first direction, the abutting part moves from the first end to the second end.

7. The wheel assembly according to claim 6, characterized in that: The drive boss also includes a slot at the first end, and the abutment engages with the slot when it is located on the first end to restrict the movement of the directional member along the drive ramp.

8. The wheel assembly according to claim 3, characterized in that: The engaging portion is an annular groove provided on the outer periphery of the rotating shaft. The engaging member has a engaging end that can be inserted into or disengaged from the annular groove radially along the rotating shaft. The engaging member is rotatably or slidably disposed on the mounting base. The quick-release mechanism further includes a second elastic element that provides force to the engaging member so that the engaging end moves toward the annular groove.

9. The wheel assembly according to claim 8, characterized in that: The second driving structure includes a pushing part. During the movement of the operating member along the second direction, the pushing part pushes the engaging member to move, causing the engaging end to move away from the annular groove.

10. The wheel assembly according to any one of claims 3 to 9, characterized in that: The mounting base includes a first base body and a second base body that cooperate with each other in the vertical direction. A mounting cavity is formed between the first base body and the second base body. The second base body is provided with a mounting hole for the rotating shaft to pass through axially. The mounting hole and the mounting cavity are interconnected. When the rotating shaft is rotatably inserted into the mounting hole around its own axis, at least a portion of it is located in the mounting cavity. The directional member and the engaging member are respectively movably installed in the mounting cavity. The rotating seat is rotatably disposed between the first seat body and the second seat body around the rotation center line, and both the first driving structure and the second driving structure are located in the mounting cavity.

11. The wheel assembly according to claim 10, characterized in that: The rotating seat is annular in shape, and the first driving structure and the second driving structure extend radially inward from the inner wall of the rotating seat, and the first driving structure and the second driving structure are spaced apart along the circumference of the rotating seat.

12. A vehicle, comprising a vehicle support frame, characterized in that: It also includes a wheel assembly as described in any one of claims 1 to 11, the wheel assembly being connected to the vehicle support via the mounting base.

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