An auxiliary wheel adaptive mechanism

Abstract

The present invention relates to an auxiliary wheel adaptive mechanism, which includes a base, two rotating devices, and a swinging device hinged to the rotating devices; the two rotating devices are oppositely arranged on both sides of the base, and the rotating devices are hinged to the base. A wheel assembly is provided at one end of the rotating device facing away from the base, and the wheel assembly is hinged to the rotating device; one end of the swinging device is hinged to the rotating device, and the end of the swinging device facing away from the rotating device abuts against the base; with such a setting, when encountering uneven roads, it is convenient for the medical device to move, and at the same time, it avoids damaging the frame of the medical device; by setting the swinging device, it avoids the medical device from jolting during the moving process and improves the smoothness of the movement of the medical device.

Description

Technical Field

[0001] The present invention relates to the technical field of auxiliary wheel adaptive mechanisms, and more particularly to an auxiliary wheel adaptive mechanism. Background Art

[0002] At present, multi-wheel supported medical devices are widely used in hospitals. When a multi-wheel supported medical device moves to uneven roads, it will cause difficulties in moving the medical device and damage to the upper frame of the medical device. Summary of the Invention

[0003] Aiming at the deficiencies of the prior art, the purpose of the present invention is to provide an auxiliary wheel adaptive mechanism, and its advantage is that it can solve the problems of difficult movement of medical devices and damage to the frame when encountering uneven roads.

[0004] The above object of the present invention is achieved by the following technical solutions: an auxiliary wheel adaptive mechanism, including a base, two rotating devices, and a swinging device hinged to the rotating device; the two rotating devices are relatively arranged on both sides of the base, and the rotating device is hinged to the base. A wheel assembly is provided at the end of the rotating device away from the base, and the wheel assembly is hinged to the rotating device; one end of the swinging device is hinged to the rotating device, and the end of the swinging device away from the rotating device abuts against the base.

[0005] Preferably, for the auxiliary wheel adaptive mechanism provided by the present invention, the auxiliary wheel adaptive mechanism further includes a bearing plate, and the bearing plate is located on the side of the base away from the ground, and the bearing plate is connected to the base.

[0006] Preferably, for the auxiliary wheel adaptive mechanism provided by the present invention, the rotating device includes two connecting plates arranged relatively, a part of the base is located between the two connecting plates, and the two connecting plates are hinged to the base; a part of the wheel assembly is located between the two connecting plates, and is relatively arranged with the base at both ends of the connecting plates, and the wheel assembly is hinged to the two connecting plates.

[0007] Preferably, for the auxiliary wheel adaptive mechanism provided by the present invention, at least two guiding members are provided at the end of the bearing plate away from the base, the two guiding members are relatively arranged at both ends of the bearing plate, and the end of the guiding member away from the bearing plate is located between the two connecting plates and is spaced from the connecting plates by a preset distance; the guiding member is used to control the swinging of the rotating device along the extending direction parallel to the guiding member.

[0008] Preferably, in the auxiliary wheel adaptive mechanism provided by the present invention, one end of the swing device is inserted between the two connecting plates, and the swing device is hinged to the two connecting plates, and one end of the swing device toward the pressure plate abuts against the pressure plate through the base.

[0009] Preferably, in the auxiliary wheel adaptive mechanism provided by the present invention, the swing device includes an elastic member and a base, the base is arranged between the two connecting plates, the base is hinged to the two connecting plates, and a groove is provided on the side of the base facing the pressure plate, one end of the elastic member is inserted into the groove, and the outer side wall of the elastic member abuts against the inner side wall of the groove, and the end of the elastic member facing away from the base abuts against the pressure plate.

[0010] Preferably, in the auxiliary wheel adaptive mechanism provided by the present invention, the swing device also includes a support assembly, the support assembly is arranged between the pressure plate and the elastic member, the pressure plate is provided with a stepped hole on the side facing the rotating device, the support assembly is accommodated in the stepped hole, the top end of the support assembly abuts against the stepped hole, and the bottom wall of the support assembly abuts against the end of the elastic member facing away from the base.

[0011] Preferably, the auxiliary wheel adaptive mechanism provided by the present invention, the support assembly includes a first support member and a second support member, the first support member is provided with a first curved surface on the side facing the second support member, the second support member is provided with a second curved surface on the side facing the first support member, the first curved surface is in contact with the second curved surface, and the first curved surface can move along the second curved surface.

[0012] Preferably, in the auxiliary wheel adaptive mechanism provided by the present invention, a receiving groove is provided on the side of the first support member facing away from the second support member, the end of the elastic member facing away from the base is inserted into the receiving groove, and the outer side wall of the elastic member abuts against the inner side wall of the receiving groove; the side of the second support member facing away from the first support member abuts against the stepped hole.

[0013] Preferably, the auxiliary wheel adaptive mechanism provided by the present invention, the wheel assembly includes a wheel, a wheel frame and a connecting column, the wheel frame is U-shaped, the wheel is partially accommodated in the wheel frame, and the wheel is rotatably connected to the wheel frame, the wheel can rotate around its own central axis, the side of the wheel frame away from the wheel is rotatably connected to the connecting column, and the wheel frame can rotate around the central axis of the connecting column.

[0014] In summary, the beneficial technical effects of the present invention are as follows: The auxiliary wheel adaptive mechanism provided in this embodiment includes a base, two rotating devices, and a swinging device hinged to the rotating devices; the two rotating devices are relatively arranged on both sides of the base, and the rotating devices are hinged to the base. A wheel assembly is provided at one end of the rotating device away from the base, and the wheel assembly is hinged to the rotating device; one end of the swinging device is hinged to the rotating device, and the end of the swinging device away from the rotating device abuts against the base; with such a setting, when encountering uneven roads, it is convenient for the medical device to move, and at the same time, it avoids damaging the frame of the medical device; by setting the swinging device, it avoids bumps during the movement of the medical device and improves the smoothness of the movement of the medical device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a cross-sectional view of the auxiliary wheel adaptive mechanism provided in an embodiment of the present invention Figure 1 .

[0016] Figure 2 is a side view of the auxiliary wheel adaptive mechanism provided in an embodiment of the present invention.

[0017] Figure 3 is a cross-sectional view of the auxiliary wheel adaptive mechanism provided in an embodiment of the present invention Figure 2 .

[0018] Figure 4 is an overall structural schematic diagram of the auxiliary wheel adaptive mechanism provided in an embodiment of the present invention when both wheel assemblies are in a horizontal state.

[0019] Figure 5 is an overall structural schematic diagram of the auxiliary wheel adaptive mechanism provided in an embodiment of the present invention when both wheel assemblies are in a lowered state.

[0020] Figure 6 is an overall structural schematic diagram of the auxiliary wheel adaptive mechanism provided in an embodiment of the present invention when the two wheel assemblies are in a one-high-one-low state.

[0021] Figure 7 is an overall structural schematic diagram of the auxiliary wheel adaptive mechanism provided in an embodiment of the present invention when both wheel assemblies are in a raised state.

[0022] In the figure, 1. Auxiliary wheel adaptive mechanism; 10. Base; 20. Rotating device; 201. Connecting plate; 202. Partition plate; 30. Wheel assembly; 301. Wheel; 302. Wheel frame; 303. Connecting column; 40. Bearing plate; 401. Step hole; 50. Guide member; 60. Swinging device; 601. Elastic member; 602. Base; 6021. Groove; 603. Support assembly; 6031. First support member; 6032. Second support member. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The following further describes the present invention in detail with reference to the accompanying drawings. The auxiliary wheel adaptive mechanism 1 provided in the embodiment of the present invention is used on a movable device. For the convenience of description below, it is described by taking the application to a medical device as an example.

[0024] Refer to Figures 1 to 3 , which is an auxiliary wheel adaptive mechanism 1 disclosed by the present invention, including a base 10 and two rotating devices 20. The two rotating devices 20 are oppositely arranged on both sides of the base 10, and the rotating device 20 is hinged to the base 10, so that the rotating device 20 rotates around the hinge point of the rotating device 20 and the base 10 as the center of the circle.

[0025] Exemplarily, the base 10 is in a T shape. Among them, the base 10 includes a horizontal connecting portion and a vertical connecting portion. Both the horizontal connecting portion and the vertical connecting portion are in a plate shape. One end of the vertical connecting portion abuts against the horizontal connecting portion. During use, the medical device includes a frame. The horizontal connecting portion is detachably connected to the frame, and the vertical connecting portion is hinged to the rotating device 20; by setting the base 10 in a T shape, the weight of the auxiliary wheel adaptive mechanism 1 is reduced, and the lightweight of the auxiliary wheel adaptive mechanism 1 is realized.

[0026] Among them, the auxiliary wheel adaptive mechanism 1 provided in this embodiment further includes a wheel assembly 30. The end of the rotating device 20 facing away from the base 10 is hinged to the wheel assembly 30, so that the rotating device 20 rotates around the hinge point of the rotating device 20 and the wheel assembly 30 as the center of the circle; through the up and down movement of the wheel assembly 30, the rotating device 20 is driven to rotate.

[0027] Exemplarily, the rotating device 20 and the wheel assembly 30 can be connected by a shaft pin. Of course, the rotating device 20 and the wheel assembly 30 can also be connected by other rotating shafts.

[0028] Furthermore, the rotating device 20 includes two connecting plates 201 arranged oppositely. A part of the base 10 is located between the two connecting plates 201, and the two connecting plates 201 are hinged to the base 10; mounting holes are provided on the connecting plates 201, through holes are provided on the base 10, and the through holes and the mounting holes are correspondingly arranged. The shaft pin passes through the mounting hole, the through hole and the mounting hole in sequence, so as to realize the hinge connection between the two connecting plates 201 and the base 10. When the wheel assembly 30 moves up and down, the two connecting plates 201 are driven to rotate around the central axis of the shaft pin at the same time, that is, the rotating device 20 is driven to rotate around the central axis of the shaft pin.

[0029] Specifically, the first direction of the connecting plate 201 is the length direction of the connecting plate 201, the second direction of the connecting plate 201 is the width direction of the connecting plate 201, the first direction of the connecting plate 201 is perpendicular to the second direction of the connecting plate 201, the first direction of the connecting plate 201 is parallel to the horizontal plane, the second direction of the connecting plate 201 is perpendicular to the horizontal plane. A plurality of partition plates 202 are provided between the two connecting plates 201. The plurality of partition plates 202 are arranged at intervals along the extending direction of the connecting plate 201. The extending direction of the partition plate 202 is perpendicular to the horizontal plane. Both ends of the partition plate 202 are respectively connected to the two connecting plates 201. And two adjacent partition plates 202 and the two connecting plates 201 together enclose a receiving channel. By providing the partition plate 202 between the two connecting plates 201, the strength of the rotating device 20 is improved.

[0030] Part of the wheel assembly 30 is located between the two connecting plates 201 and is arranged opposite to the base 10. The wheel assembly 30 is hinged to the two connecting plates 201; when the wheel assembly 30 moves upward, the rotating device 20 is driven to rotate.

[0031] Continue to refer to Figures 1 to 3 , in this embodiment, the wheel assembly 30 includes a wheel 301, a wheel frame 302 and a connecting column 303. The wheel frame 302 is U-shaped. Part of the wheel 301 is received in the wheel frame 302, and the wheel 301 is rotatably connected to the wheel frame 302. The wheel 301 can rotate around its own central axis. The side of the wheel frame 302 facing away from the wheel 301 is rotatably connected to the connecting column 303. The wheel frame 302 can rotate around the central axis of the connecting column 303; by rotating the wheel frame 302, the wheel assembly 30 can move in various directions, improving the convenience of the medical device.

[0032] Specifically, the central axis of the connecting column 303 is perpendicular to the horizontal plane. The connecting column 303 is located between the two connecting members. The connecting column 303 is hinged to the two connecting plates 201. The two connecting plates 201 rotate around the hinge points of the connecting column 303 and the two connecting plates 201. The connecting column 303 and the base 10 are arranged opposite to each other at both ends of the rotating device 20; wherein, one end of the connecting column 303 facing the ground is rotatably connected to the wheel frame 302. A rotating hole is provided at the closed end of the wheel frame 302. One end of the connecting column 303 is inserted into the rotating hole, and the wheel frame 302 can rotate around the central axis of the connecting column 303.

[0033] Further, the auxiliary wheel adaptive mechanism 1 provided in this embodiment further includes a bearing plate 40. The bearing plate 40 is located on the side of the base 10 facing away from the ground. The bearing plate 40 is connected to the base 10; wherein, the extending direction of the bearing plate 40 is parallel to the horizontal plane.

[0034] For example, the frame can be connected to the base 10 . Of course, the frame can also be connected to the side of the pressure plate 40 facing away from the base 10 .

[0035] The pressure plate 40 and the base 10 may be connected by bolts or by welding, which is not limited in this embodiment.

[0036] In the above embodiment, at least two guide members 50 are provided at one end of the pressure plate 40 away from the base 10, and the two guide members 50 are relatively arranged at the two ends of the pressure plate 40. The end of the guide member 50 away from the pressure plate 40 is located between the two connecting plates 201 and is spaced a preset distance from the connecting plates 201; the guide member 50 is used to control the rotating device 20 to swing along the extension direction parallel to the guide member 50; the wheel assembly 30 moves upward or downward to drive the rotating device 20 to swing along the extension direction of the guide member 50.

[0037] Specifically, the guide member 50 is columnar, the extension direction of the guide member 50 is perpendicular to the horizontal plane, one end of the guide member 50 is against the bottom wall of the pressure plate 40, and the guide member 50 is detachably connected to the pressure plate 40. The end of the guide member 50 facing away from the pressure plate 40 is inserted into the accommodating channel, and the rotating device 20 can swing along the extension direction of the guide member 50.

[0038] Continue to refer to Figures 1 to 3 The training wheel adaptive mechanism 1 provided in this embodiment further includes a swinging device 60 hinged to the rotating device 20. One end of the swinging device 60 is hinged to the rotating device 20, and the end of the swinging device 60 facing away from the rotating device 20 abuts against the base 10. By providing the swinging device 60, it can be used to resist the pressure transmitted by the wheel assembly 30 through the rotating device 20.

[0039] Furthermore, the swinging device 60 is arranged between the two connecting plates 201, and the swinging device 60 is hinged to the two connecting plates 201. One end of the swinging device 60 toward the pressure plate 40 is in contact with the pressure plate 40 through the base 10; when the wheel assembly 30 moves upward or downward, the rotating device 20 is driven to rotate, and the rotating device 20 drives the swinging device 60 to swing, and one end of the swinging device 60 is in contact with the pressure plate 40, so that the pressure plate 40 bears the bearing force transmitted by the wheel assembly 30.

[0040] The swing device 60 is located between the base 10 and the guide member 50 . It should be noted that the swing device 60 is disposed in one of the accommodating channels and is adjacent to the accommodating channel where the guide member 50 is located.

[0041] Specifically, the swinging device 60 includes an elastic member 601 and a base 602. The base 602 is arranged between the two connecting plates 201. The base 602 is hinged to the two connecting plates 201. A groove 6021 is provided on the side of the base 602 facing the pressure plate 40. One end of the elastic member 601 is inserted into the groove 6021, and the outer wall of the elastic member 601 is pressed against the inner wall of the groove 6021. The end of the elastic member 601 facing away from the base 602 is pressed against the pressure plate 40; when the wheel assembly 30 moves upward or downward, the elastic member 601 is used to balance the pressure transmitted by the wheel assembly 30 through the rotating device 20; at the same time, the base 602 is used to withstand the thrust of the elastic member 601.

[0042] For example, the elastic member 601 may be a gas spring. Of course, the elastic member 601 may also be a compression spring or a rubber elastic rod.

[0043] Taking a plane parallel to the horizontal plane as a cross section, the cross section of the base 602 may be rectangular, circular, or polygonal, which is not limited in this embodiment.

[0044] Furthermore, in this embodiment, the swing device 60 further includes a support assembly 603, which is disposed between the pressure plate 40 and the elastic member 601. The pressure plate 40 is provided with a stepped hole 401 on the side facing the rotating device 20. The support assembly 603 is accommodated in the stepped hole 401, and the top of the support assembly 603 abuts against the stepped hole 401, and the bottom wall of the support assembly 603 abuts against the end of the elastic member 601 away from the base 602. Figure 3 Taking the shown orientation as an example, when the wheel assembly 30 moves upward or downward, the support assembly 603 is used to withstand the upward thrust of the elastic member 601.

[0045] Specifically, the stepped hole 401 is stepped, and includes a limiting groove and a receiving cavity. Figure 3 Taking the shown orientation as an example, the limit groove is located at the upper part of the accommodating cavity, the limit groove is connected to the accommodating cavity, the cross-sectional area of the limit groove is smaller than the cross-sectional area of the accommodating cavity, and a flange is provided at one end of the accommodating cavity facing the limit groove, and the flange extends inward along the extension direction of the pressure plate 40 to the inner side wall of the limit groove.

[0046] In this embodiment, the support assembly 603 includes a first support member 6031 and a second support member 6032. The first support member 6031 is provided with a first curved surface on the side facing the second support member 6032, and the second support member 6032 is provided with a second curved surface on the side facing the first support member 6031. The first curved surface is in contact with the second curved surface, and the first curved surface can move along the second curved surface; when the wheel assembly 30 moves upward or downward, the elastic member 601 swings, thereby driving the first support member 6031 to move along the second curved surface.

[0047] Specifically, the second support member 6032 is inserted into the limiting groove, the outer side wall of the second support member 6032 abuts against the inner side wall of the limiting groove, the first support member 6031 is accommodated in the accommodating cavity, and the first support member 6031 can move along the second arc surface in the accommodating cavity.

[0048] Continue to refer to Figure 3 , a receiving groove is formed on the side of the first support member 6031 away from the second support member 6032, one end of the elastic member 601 away from the base 602 is inserted into the receiving groove, and the outer side wall of the elastic member 601 abuts against the inner side wall of the receiving groove; the side of the second support member 6032 away from the first support member 6031 abuts against the stepped hole 401; when the wheel assembly 30 moves upward or downward, the driving rotating device 20 rotates. At this time, the elastic member 601 swings, one end of the elastic member 601 is inserted into the receiving groove, and the elastic member 601 can drive the first support member 6031 to move along the second arc surface.

[0049] Exemplarily, the first support member 6031 is in a circular ring shape. Of course, the first support member 6031 can also be in a cylindrical shape or a cuboid shape.

[0050] Furthermore, the auxiliary wheel adaptive mechanism 1 provided in this embodiment includes multiple pairs of rotating devices 20, and the multiple pairs of rotating devices 20 are arranged at intervals along the extending direction of the base 10; by arranging the multiple pairs of rotating devices 20, the strength of the auxiliary wheel adaptive mechanism 1 is improved.

[0051] Continue to refer to Figures 4 to 7 , when both wheel assemblies 30 are in a horizontal state, the rotating device 20 does not swing, and the two relatively arranged rotating devices 20 are both in a horizontal state, and the two rotating devices 20 are in the same horizontal plane. When both wheel assemblies 30 are in a descending state, at this time, the two relatively arranged rotating devices 20 both swing upward along the extending direction of the guiding member 50. When the two wheel assemblies 30 are in a state of one high and one low, the rotating device 20 corresponding to the wheel assembly 30 in the low state swings upward along the extending direction of the guiding member 50, and the rotating device 20 corresponding to the wheel assembly 30 in the high state swings downward along the extending direction of the guiding member 50. When both wheel assemblies 30 are in an ascending state, the two relatively arranged rotating devices 20 both swing downward along the extending direction of the guiding member 50. Thus, the auxiliary wheel adaptive mechanism 1 can adapt to different geographical environments and is convenient for movement.

[0052] The motion process of the training wheel adaptive mechanism 1 provided in this embodiment is as follows: when the wheel assembly 30 moves upward, the rotating device 20 swings downward along the extension direction of the guide member 50. At this time, the mounting device drives the elastic member 601 to swing, and the elastic member 601 drives the first support member 6031 to move along the second arc surface. The elastic member 601 balances the pressure transmitted by the wheel assembly 30 through the rotating device 20 through its elastic force. At this time, the elastic member 601 is compressed, and then the restoring force of the elastic member 601 is transmitted to the base 602 and the support assembly 603 respectively. That is, the elastic member 601 applies an upward thrust to the support assembly 603 and a downward thrust to the base 602.

[0053] The auxiliary wheel adaptive mechanism 1 provided in this embodiment includes a base 10, two rotating devices 20 and a swinging device 60 hinged to the rotating devices 20; the two rotating devices 20 are relatively arranged on both sides of the base 10, and the rotating devices 20 are hinged to the base 10, and the wheel assembly 30 is provided at the end of the rotating device 20 away from the base 10, and the wheel assembly 30 is hinged to the rotating device 20; one end of the swinging device 60 is hinged to the rotating device 20, and the end of the swinging device 60 away from the rotating device 20 abuts against the base 10; such an arrangement facilitates the movement of the medical device when encountering uneven roads, and at the same time, avoids damage to the frame of the medical device; by providing the swinging device 60, bumps in the medical device during movement are avoided, thereby improving the stability of the movement of the medical device.

[0054] The training wheel adaptive mechanism 1 provided by the present invention has the following advantages: the device has a simple structure, is easy to manufacture, and is convenient to operate.

[0055] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus comprising the element.

[0056] Finally, it should be noted that: Obviously, the above embodiments are merely examples given to clearly illustrate the present invention, rather than limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to enumerate all the implementation manners here. And the obvious changes or modifications derived therefrom still fall within the protection scope of the present invention.

Claims

1. A training wheel adaptive mechanism, characterized by: It comprises a base, two rotating devices and a swinging device hinged to the rotating devices; The two rotating devices are arranged on both sides of the base relative to each other, and the rotating devices are hinged to the base. A wheel assembly is provided at one end of the rotating device away from the base, and the wheel assembly is hinged to the rotating device; One end of the swing device is hinged to the rotating device, and one end of the swing device facing away from the rotating device is in contact with the base; The auxiliary wheel adaptive mechanism further includes a pressure plate, which is located on a side of the base facing away from the ground and is connected to the base; The rotating device includes two connecting plates arranged opposite to each other, the base portion is located between the two connecting plates, and the two connecting plates are hinged to the base; The wheel assembly is partially located between the two connecting plates and is arranged at both ends of the connecting plates opposite to the base. The wheel assembly is hinged to the two connecting plates. At least two guide members are provided at one end of the pressure plate away from the base, and the two guide members are arranged opposite to each other at both ends of the pressure plate. The end of the guide member away from the pressure plate is located between the two connecting plates and is spaced a preset distance from the connecting plates. The guide member is used to control the rotating device to swing along an extension direction parallel to the guide member; One end of the swing device is inserted between the two connecting plates, and the swing device is hinged to the two connecting plates, and one end of the swing device facing the pressure plate abuts against the pressure plate through the base; The swing device includes an elastic member and a base, the base is arranged between the two connecting plates, the base is hinged to the two connecting plates, a groove is formed on the side of the base facing the pressure plate, one end of the elastic member is inserted into the groove, and the outer side wall of the elastic member abuts against the inner side wall of the groove, and the end of the elastic member facing away from the base abuts against the pressure plate; The wheel assembly includes a wheel, a wheel frame and a connecting column. The wheel frame is U-shaped, the wheel is partially accommodated in the wheel frame, and the wheel is rotatably connected to the wheel frame. The wheel can rotate around its own central axis. The side of the wheel frame facing away from the wheel is rotatably connected to the connecting column, and the wheel frame can rotate around the central axis of the connecting column.

2. The training wheel adaptive mechanism according to claim 1, characterized in that: The swinging device also includes a support assembly, which is arranged between the pressure plate and the elastic member. The pressure plate is provided with a stepped hole on the side facing the rotating device. The support assembly is accommodated in the stepped hole. The top end of the support assembly abuts against the stepped hole, and the bottom wall of the support assembly abuts against the end of the elastic member facing away from the base.

3. The training wheel adaptive mechanism according to claim 2, characterized in that: The support assembly includes a first support member and a second support member. The first support member is provided with a first curved surface on a side facing the second support member, and the second support member is provided with a second curved surface on a side facing the first support member. The first curved surface is in contact with the second curved surface, and the first curved surface can move along the second curved surface.

4. The training wheel adaptive mechanism according to claim 3, characterized in that: A receiving groove is formed on a side of the first supporting member facing away from the second supporting member, and an end of the elastic member facing away from the base is inserted into the receiving groove, and an outer side wall of the elastic member abuts against an inner side wall of the receiving groove; A side of the second supporting member facing away from the first supporting member abuts against the stepped hole.

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