CN210018160U - Folding wheel assembly - Google Patents
Folding wheel assembly Download PDFInfo
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- CN210018160U CN210018160U CN201920573325.7U CN201920573325U CN210018160U CN 210018160 U CN210018160 U CN 210018160U CN 201920573325 U CN201920573325 U CN 201920573325U CN 210018160 U CN210018160 U CN 210018160U
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- positioning element
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Abstract
The utility model relates to a folding wheel subassembly contains casing, wheelset, pin joint axle, elastic element and positioning element. The casing is provided with an accommodating space, the wheel set is arranged in the casing and can be selectively positioned at an exposed position or an retracted position relative to the accommodating space, and the wheel set comprises a wheel shaft, a wheel seat and a wheel body. The pivot shaft is pivoted on the shell, connected with the wheel shaft and drives the wheel shaft to enable the wheel set to be positioned at an exposed position or an retracted position. The elastic element is connected with the pivot shaft and the wheel shaft and provides a restoring force for the wheel set to the inward retracted position. The positioning element is detachably abutted against the wheel shaft and is positioned at the exposed position when the wheel set is abutted by the positioning element. Therefore, the wheel set is positioned at the exposed position or the retracted position through the arrangement of the elastic element and the positioning element.
Description
Technical Field
The present invention relates to a foldable wheel assembly, and more particularly, to a foldable wheel assembly providing a restoring force through an elastic member.
Background
Wheel boxes are a necessary article in life, but the wheel set is the most vulnerable element because the wheel set may be damaged by collision when the wheel box is carried.
In order to prevent the wheel set from being damaged during transportation, manufacturers can make the wheel body be accommodated in the box body by giving the wheel set a telescopic function, so as to reduce the possibility of being collided by external force.
In view of the above, it is a general purpose of the related art to develop a wheel assembly having external force buffering and telescopic functions.
SUMMERY OF THE UTILITY MODEL
The utility model provides a folding wheel subassembly sees through the restoring force that elastic element provided, and adjustable folding wheel subassembly's user state and the elasticity that sees through elastic element make folding wheel subassembly have the function of moving away to avoid possible earthquakes to can avoid its wheelset to damage.
According to an aspect of the present invention, a foldable wheel assembly is provided, which comprises a housing, a wheel set, a pivot shaft, an elastic element and a positioning element. The shell is provided with an accommodating space. The wheel set is arranged on the shell, can be selectively positioned at an exposed position or an retracted position relative to the accommodating space, and comprises a wheel shaft, a wheel seat and a wheel body. The wheel shaft drives the wheel set to be located at an exposed position or an inward contraction position, the wheel seat is connected with the wheel shaft, and the wheel body is connected with the wheel seat. The pivot shaft is pivoted on the shell and connected with the wheel shaft, and drives the wheel shaft to enable the wheel set to be located at the exposed position or the retracted position. The elastic element is arranged in the accommodating space and connected with the pivot shaft, one end of the elastic element is connected with the wheel shaft, and the elastic element provides restoring force for the wheel set towards the inward-retracted position. The positioning element is arranged in the accommodating space, can be separately abutted against the wheel shaft, and is positioned at the exposed position when the wheel set is abutted by the positioning element.
The collapsible wheel assembly according to the aspect described in the previous paragraph may further comprise a positioning assembly comprising a rod, a pressing member and a positioning element. The rod piece is arranged in the shell, the pressing piece is connected with the rod piece, the pressing piece penetrates through and is exposed out of the shell, the positioning element penetrates through the rod piece, the wheel shaft is abutted by the positioning element and is positioned at the exposed position, when the pressing piece is stressed to push the positioning element along one axial direction of the rod piece, the positioning element is axially displaced along the rod piece and is separated from abutting against the wheel set, and the wheel set is restored to the inward retracted position by the restoring force of the elastic element.
According to the foldable wheel assembly of the aspect described in the previous paragraph, the positioning assembly may further include a position-limiting bolt and a positioning spring. The limiting bolt penetrates through the rod piece and is used for limiting the displacement of the pressing piece, and the positioning spring is connected with the rod piece and is used for supplying first resetting force to the positioning element so as to position the positioning element at a positioning position.
The collapsible wheel assembly according to the aspect described in the preceding paragraph may further comprise a limiting rod and a limiting spring. The limiting rod piece is arranged on the shell, the limiting spring is connected with the limiting rod piece, one end of the limiting spring is connected with the positioning element, and the positioning element is used for supplying second reset force to the positioning element to position the positioning element at a positioning position.
The foldable wheel assembly according to the aspect of the previous paragraph may further include a pivot member connected to the pivot shaft and exposed to the housing, and configured to rotate the pivot shaft to drive the wheel assembly to be located at the exposed position or the retracted position.
The collapsible wheel assembly according to an aspect of the preceding paragraph, wherein the resilient element may be a torsion spring.
A collapsible wheel assembly according to an aspect of the preceding paragraph, wherein the wheel holder is rotatable in the axial direction of the wheel axle.
The foldable wheel assembly according to the aspect of the previous section may further include a rotation spring, one end of which is connected to the wheel shaft and the other end of which is connected to the wheel seat and provides a resilient force of the wheel seat toward the initial angle.
The collapsible wheel assembly according to aspects described in the preceding paragraph may further comprise a positioning magnetic element, a magnetic element, and a counter-magnetic element. The positioning magnetic part is arranged on the wheel seat. The magnetic part is arranged on the inner wall of the shell, and the polarity of the magnetic part is different from the magnetism of the positioning magnetic part, so that the attraction of the positioning magnetic part is provided. The reverse magnetic part is arranged on the inner wall of the shell, the polarity of the reverse magnetic part is the same as the magnetism of the positioning magnetic part, so that the repulsive force of the positioning magnetic part is provided, and the wheel seat is positioned at the initial angle through the attractive force and the repulsive force.
According to an aspect of the present invention, there is provided another foldable wheel assembly, which comprises a housing, a wheel set, a pivot shaft, an elastic element and a positioning element. The shell is provided with an accommodating space. The wheel set is arranged on the shell, can be selectively positioned at an exposed position or an retracted position relative to the accommodating space and comprises a wheel shaft, a wheel seat and a wheel body. The wheel shaft drives the wheel set to be located at the exposed position or the retracted position and comprises an abutting end with a cambered surface structure, the wheel seat is connected with the wheel shaft, and the wheel body is connected with the wheel seat. The pivot shaft is pivoted on the shell, is connected with the wheel shaft and drives the wheel shaft to enable the wheel set to be positioned at an exposed position or an retracted position. The elastic element is arranged in the accommodating space and connected with the pivot shaft, and one end of the elastic element is connected with the wheel shaft and provides restoring force for the inward contraction position of the wheel set. The positioning element is arranged in the containing space and can be separately abutted against the abutting end of the wheel shaft, when the wheel set is abutted by the positioning element, the wheel set is positioned at the exposed position, and when the wheel set is converted from the retracted position to the exposed position, the cambered surface structure is displaced along one side of the positioning element.
The collapsible wheel assembly according to the aspect described in the preceding paragraph may further comprise a positioning set, the positioning set comprising a rod, a pressing member and a positioning element. The rod piece is arranged in the shell, the pressing piece is connected with the rod piece, the pressing piece penetrates through and is exposed out of the shell, and the positioning element is penetrated through by the rod piece. When the pressing piece is forced to push the positioning element along one axial direction of the rod piece, the positioning element is displaced along one axial direction of the rod piece and is separated from the propping of the propping end, and the wheel set is restored to the retracted position by the restoring force of the elastic element.
Drawings
Fig. 1 illustrates a perspective view of a folding wheel assembly according to an embodiment of the present invention;
FIG. 2 illustrates an exploded view of the folding wheel assembly according to the embodiment of FIG. 1;
FIG. 3 is a perspective view of the wheelset of the embodiment of FIG. 1 in an exposed position;
FIG. 4 is a top view of the wheel set of the embodiment of FIG. 1 in an exposed position;
FIG. 5 is a perspective view of the wheel assembly of the embodiment of FIG. 1 in a stowed position;
FIG. 6 is another perspective view of the wheelset of the embodiment of FIG. 1 in a stowed position; and
fig. 7 is a perspective view of a folding wheel assembly according to another embodiment of the present invention.
Detailed Description
Embodiments of the present invention will be described below with reference to the accompanying drawings. For the purpose of clarity, numerous implementation details are set forth in the following description. However, the reader should understand that these practical details should not be used to limit the present invention. That is, in some embodiments of the invention, details of these implementations are not necessary. In addition, for the sake of simplicity, some conventional structures and elements are shown in the drawings in a simple schematic manner; and repeated elements will likely be referred to using the same reference numerals.
Referring to fig. 1 and 2, fig. 1 is a perspective view illustrating a folding wheel assembly 100 according to an embodiment of the present invention, and fig. 2 is an exploded view illustrating the folding wheel assembly 100 according to the embodiment of fig. 1. The foldable wheel assembly 100 includes a housing 110, a wheel set 120, a pivot shaft 130, an elastic element 140 and a positioning element 153, wherein the housing 110 has an accommodating space 111, the wheel set 120 is disposed in the housing 110 and selectively positionable in an exposed position (see fig. 3) or an retracted position (see fig. 5) corresponding to the accommodating space 111, the wheel set 120 includes a wheel shaft 121, a wheel seat 122 and a wheel body 123, the wheel shaft 121 drives the wheel set 120 to be in the exposed position or the retracted position, the wheel seat 122 is connected to the wheel shaft 121, and the wheel body 123 is connected to the wheel seat 122. The pivot shaft 130 is pivotally disposed on the housing 110, connected to the wheel shaft 121, and can drive the wheel shaft 121. The elastic element 140 is disposed in the accommodating space 111 and connected to the pivot shaft 130, and one end of the elastic element 140 is connected to the axle 121, and the elastic element 140 provides a restoring force of the wheel set 120 toward the inward-retracted position. The positioning element 153 is disposed in the accommodating space 111 and detachably abuts against the wheel shaft 121, and when the wheel set 120 is abutted by the positioning element 153, the positioning element is positioned at an exposed position.
Through the above configuration, the wheel assembly 120 can pivot via the pivot shaft 130, and can be selectively positioned at the exposed position or the retracted position through the propping of the positioning element 153 and the restoring force of the elastic element 140, and through the arrangement of the elastic element 140, the foldable wheel assembly 100 has a shock absorbing function, so that the foldable wheel assembly 100 can buffer external force, thereby achieving the effect of convenient storage and effectively reducing the damage rate of the foldable wheel assembly 100.
The foldable wheel assembly 100 may further include a positioning set 150 disposed in the accommodating space 111 and including a rod 151, a pressing member 152 and a positioning element 153. The rod 151 is disposed in the housing 110, the pressing member 152 is connected to the rod 151 and is disposed through and exposed from the housing 110, and the positioning element 153 is disposed through the rod 151.
In detail, one end of the pivot shaft 130 is disposed in the positioning hole 112 of the casing 110, and the other end of the pivot shaft 130 penetrates through the casing 110 and is exposed out of the casing 110, so that the pivot shaft 130 can pivot relative to the casing 110. The pivot shaft 130 extends through the axle 121 and is connected to the axle 121, whereby the pivot shaft 130 is controlled from the outside of the housing 110 to drive the axle 121 to rotate relative to the housing 110.
Specifically, the elastic element 140 is a torsion spring and is sleeved on the pivot shaft 130, but the present invention is not limited thereto. One end of the elastic element 140 is connected to the abutting end 124 of the axle 121, and the other end of the elastic element 140 is disposed in the positioning hole 113 of the housing 110, that is, the other end of the elastic element 140 is limited by the positioning hole 113. Therefore, when the elastic element 140 is pressed against and twisted by the positioning element 153, the elastic element 140 can provide a restoring force to the axle 121 and drive the axle 121 to rotate relative to the housing 110. It should be noted that when the wheel assembly 120 is impacted by an external force, the wheel assembly 120 has a shock absorbing function and can absorb the external force through the elasticity of the elastic element 140, so as to reduce the damage rate of the foldable wheel assembly 100.
Referring to fig. 3 and 4, fig. 3 is a perspective view illustrating the wheel assembly 120 of the embodiment of fig. 1 in an exposed position, and fig. 4 is a perspective view illustrating the wheel assembly 120 of the embodiment of fig. 1 in an exposed position. As shown in fig. 3 and 4, when the wheel set 120 of the foldable wheel assembly 100 is in the exposed position, the abutting end 124 of the wheel axle 121 is abutted by one end of the positioning element 153; that is, the elastic element 140 connected to the axle 121 is rotated by the positioning element 153 and is in a force accumulation state, so as to position the wheel set 120 at the exposed position.
Referring to fig. 5 and 6, fig. 5 is a perspective view illustrating the wheel set 120 of the embodiment of fig. 1 in the retracted position, and fig. 6 is another perspective view illustrating the wheel set 120 of the embodiment of fig. 1 in the retracted position. In fig. 3 and 4, the wheel axle 121 is abutted by the positioning element 153 and positioned at the exposed position, and as can be seen from fig. 5 and 6, when the pressing member 152 is forced to abut against the positioning element 153 along the axial direction a1 of the rod 151, the positioning element 153 is displaced along the axial direction a1 of the rod 151 and is disengaged from the abutting end 124 of the wheel set 120, and the wheel set 120 is driven by the restoring force of the elastic element 140, so that the wheel set 120 is changed to the retracted position.
That is, the user can apply a force to the pressing member 152 to release the abutting between the positioning element 153 and the wheel set 120, and the wheel set 120 is retracted into the accommodating space 111. More specifically, referring to fig. 4 again, the pressing element 152 is sleeved on an end of the rod 151 exposed out of the housing 110 for pressing force application by a user, and an end of the pressing element 152 abuts against a side of the positioning element 153.
Specifically, the positioning set 150 may further include a positioning spring 155, wherein the positioning spring 155 is connected to the rod 151 and is used for providing a first restoring force for the positioning element 153 to position the positioning element 153 at a positioning position, wherein the positioning position is the position of the positioning element 153 shown in fig. 3 and 4. When the pressing member 152 is forced along an axial direction a1 of the rod 151, the pressing member 152 pushes the positioning element 153 in the axial direction a1 of the rod 151 toward the positioning spring 155, so that the positioning element 153 is displaced toward the positioning spring 155 and the positioning spring 155 is compressed, thereby releasing the positioning element 153 from abutting against the abutting end 124 of the axle 121. When the abutting end 124 of the wheel shaft 121 is not abutted by the positioning element 153, that is, the elastic element 140 is not driven by the positioning element 153 to twist, the elastic element 140 releases and provides a restoring force for the wheel shaft 121, the abutting end 124 of the wheel shaft 121 is driven by the elastic element 140, so that the wheel shaft 121 is rotated by the pivot shaft 130 to drive the wheel seat 122 and the wheel body 123 to move into the accommodating space 111, and the wheel set 120 is located at the retracted position, that is, the folding wheel assembly 100 is folded.
In addition, the positioning set 150 may further include a limiting pin 154, and the limiting pin 154 is disposed through the rod 151 in a direction perpendicular to the axial direction a1 of the rod 151, so that when the pressing element 152 is forced and displaced, the limiting pin 154 can limit the displacement degree of the pressing element 152. The positioning spring 155 is sleeved on the rod 151, one end of the positioning spring 155 abuts against the housing 110, and the other end of the positioning spring 155 abuts against the other side of the positioning element 153. In detail, the pressing member 152 pushes the positioning element 153 in the direction of the positioning spring 155 along the axial direction a1 of the rod 151, so that the positioning element 153 is displaced toward the positioning spring 155, the positioning spring 155 is compressed, and the limit pin 154 is clamped against the abutting groove 1521 of the pressing member 152, so as to limit the displacement degree of the pressing member 152.
The foldable wheel assembly 100 may further include a limiting rod 161 and a limiting spring 162, the limiting rod 161 is disposed on the housing 110, the limiting spring 162 is connected to the limiting rod 161, and one end of the limiting spring 162 is connected to the positioning element 153, and is used for providing a second restoring force to the positioning element 153 to position the positioning element 153 at the positioning position.
With the above configuration, when the positioning element 153 abuts against the wheel axle 121, the positioning element 153 is acted by the first restoring force of the positioning spring 155 and the second restoring force of the limiting spring 162, so that the positioning element 153 can be kept at the positioning position, the positioning element 153 can more reliably abut against the wheel axle 121, and the stability of the folding wheel assembly 100 is increased.
In addition, when the pressing piece 152 pushes against the positioning element 153, as shown in fig. 5, the positioning element 153 disengages from the wheel shaft 121, and the positioning element 153 compresses the positioning spring 155. Referring to fig. 6 again, when the foldable wheel assembly 100 is folded and the pressing member 152 is not stressed, the positioning spring 155 releases and applies a first restoring force to the positioning element 153, wherein the direction of the first restoring force is parallel to the axial direction a1 of the rod 151, and the positioning element 153 is displaced to the positioning position parallel to the axial direction a1 of the rod 151, and further, the second restoring force is limited by the second restoring force of the positioning spring 162, wherein the direction of the second restoring force is rotated along the axial direction a1 of the rod 151, and the positioning element 153 can be further kept at the positioning position under the unstressed condition, as shown in fig. 6, when the foldable wheel assembly 100 is located at the retracted position, one surface of the positioning element 153 is leaned against the abutting end 124 of the wheel shaft 121, and through the above configuration, the positioning element 153 can more stably keep the foldable wheel assembly 100 at the retracted position.
In addition, the foldable wheel assembly 100 may further include a pivot element 170, wherein the pivot element 170 is connected to the pivot shaft 130, exposed out of the housing 110, and configured to rotate the pivot shaft 130 to drive the wheel assembly 120 to be located at the exposed position or the retracted position. Specifically, when the collapsible wheel assembly 100 is to shift the wheel assembly 120 from the retracted position to the exposed position, the user rotates the pivot element 170, and thereby the pivot shaft 130 rotates relative to the housing 110, and drives the axle 121, the abutting end 124 of the axle 121 has an arc structure, the arc structure is displaced along one side of the positioning element 153, that is, the pivot shaft 130 drives the axle 121, so that the positioning element 153 is pushed by the axle 121 along the arc structure of the abutting end 124 to pivot the positioning element 153 and compress the limiting spring 162, when the arc structure of the abutting end 124 is displaced to the end of the positioning element 153, the limiting spring 162 is released and provides a second restoring force to the positioning element 153, so that the positioning element 153 can more stably abut against the abutting end 124 of the axle 121, thereby completing the shifting of the collapsible wheel assembly 100.
On the other hand, the wheel seat 122 is connected to the wheel body 123, and the wheel body 123 may be a ball wheel, but not limited thereto. It should be noted that the wheel seat 122 rotates along the axial direction A2 of the wheel axle 121, that is, the wheel seat 122 can drive the wheel body 123 to rotate along the axial direction a2360 ° of the wheel axle 121, and when the wheel set 120 is located at the retracted position, the wheel body 123 can still rotate, so that the wheel body 123 can also operate in the retracted state.
In addition, the foldable wheel assembly 100 may further include a rotation spring 180, one end of the rotation spring 180 is connected to the wheel shaft 121, and the other end of the rotation spring 180 is connected to the wheel seat 122 and provides a resilient force for the wheel seat 122 to return to an initial angle. In detail, the revolving spring 180 may be a volute spring, one end of the inner side of the revolving spring 180 is connected to a hole 125 of the wheel shaft 121, and one end of the outer side of the revolving spring 180 is connected to the wheel seat 122, as can be seen from the above description, the wheel body 123 is forced to drive the wheel seat 122 to rotate in the axial direction a2360 ° of the wheel shaft 121, and the wheel seat 122 can be stably positioned at the initial angle when not forced by the resilience of the revolving spring 180. It should be noted that the initial angle is the position (as shown in fig. 1) when the wheel set 120 is not forced by external force and the wheel seat 122 is not forced to rotate and is stationary.
Please refer to fig. 7, which is a perspective view of a folding wheel assembly 100 according to another embodiment of the present invention, wherein the structure and the detailed structure of the folding wheel assembly 100 of the embodiment of fig. 7 are the same as those of the folding wheel assembly 100 of the embodiment of fig. 1, and are not described herein again. The difference between the embodiment of fig. 7 and the embodiment of fig. 1 is that the foldable wheel assembly 100 may further include a positioning magnetic element 191, a magnetic element 192, and a counter magnetic element 193, wherein the positioning magnetic element 191 is disposed on the wheel seat 122, the magnetic element 192 is disposed on an inner wall (not shown) of the housing 110, and a polarity of the magnetic element 192 is different from a polarity of the positioning magnetic element 191, so that the positioning magnetic element 191 attracts an attractive force. In the embodiment of fig. 7, the number of the magnetic members 193 is two, but not limited to this disclosure, the two magnetic members 193 are respectively disposed on the inner wall of the housing 110, and the polarity of the magnetic members 193 is the same as the magnetic property of the positioning magnetic member 191, so that a repulsive force is provided to the positioning magnetic member 191, and the wheel seat 122 is positioned at the initial angle by the attractive force of the magnetic member 192 and the repulsive force of the magnetic members 193.
In detail, the magnetic property of the positioning magnetic element 191 is an S-pole, the magnetic property of the magnetic element 192 is an N-pole, and the magnetic property of the counter magnetic element 193 is an S-pole, but the present invention is not limited thereto. The magnetic member 192 is disposed facing the positioning magnetic member 191, and the two magnetic members 193 are disposed on two sides of the housing 110, respectively, so that when the wheel body 123 is stressed and overcomes the attraction force between the magnetic member 192 and the positioning magnetic member 191 and the repulsion force between the magnetic members 193 and the positioning magnetic member 191, the wheel seat 122 rotates along the axial direction a2 of the wheel axle 121; when the force is released, the S pole of the positioning magnetic member 191 provided to the wheel base 122 is attracted by the N pole of the magnetic member 192, the S pole of the positioning magnetic member 191 is repelled by the S pole of the counter magnetic member 193, and the wheel base 122 is rotated to the initial angle by the magnetic force.
With the above arrangement, the wheel seat 122 and the wheel body 123 can be stably maintained at the initial angle; that is, when the collapsible wheel assembly 100 is in the exposed position, or when the collapsible wheel assembly 100 is in the retracted position, the wheel seat 122 can be stably maintained at the initial angle without any rotation, thereby improving stability in use or storage.
Although the present invention has been described with reference to the above embodiments, it should be understood that various changes and modifications can be made therein by those skilled in the art without departing from the spirit and scope of the invention.
Claims (11)
1. A collapsible wheel assembly, comprising:
a housing having an accommodating space;
a wheel set disposed on the housing and selectively located at an exposed position or an retracted position corresponding to the accommodating space, the wheel set comprising: a wheel shaft driving the wheel set to be located at the exposed position or the retracted position; a wheel seat connected with the wheel axle; and a wheel body connected with the wheel seat;
a pivot shaft pivoted to the housing, connected to the wheel shaft, and driving the wheel shaft to position the wheel set at the exposed position or the retracted position;
an elastic element, which is arranged in the containing space and connected with the pivot shaft, and one end of the elastic element is connected with the wheel shaft, and the elastic element provides a restoring force of the wheel set towards the inward contraction position; and
a positioning element arranged in the containing space and detachably abutted against the wheel shaft, and the wheel set is positioned at the exposed position when abutted by the positioning element.
2. The collapsible wheel assembly of claim 1, further comprising a positioning set comprising:
a rod piece arranged on the shell;
the pressing piece is connected with the rod piece, penetrates through the rod piece and is exposed out of the shell; and
the positioning element is penetrated by the rod piece;
the wheel shaft is pressed by the positioning element and positioned at the exposed position, when the pressing piece is pressed along an axial direction of the rod piece to push the positioning element, the positioning element is displaced along the axial direction of the rod piece and is separated from the pressing of the wheel set, and the wheel set is pressed to the retracted position by the restoring force of the elastic element.
3. The collapsible wheel assembly of claim 2, wherein the positioning set further comprises:
a limit bolt which is arranged through the rod piece and is used for limiting the displacement of the pressing piece;
and the positioning spring is connected with the rod piece and is used for providing a first resetting force for the positioning element so as to position the positioning element at a positioning position.
4. The collapsible wheel assembly of claim 1, further comprising:
a limit rod piece arranged on the shell; and
and the limiting spring is connected with the limiting rod piece, one end of the limiting spring is connected with the positioning element, and the limiting spring is used for supplying a second reset force to the positioning element so that the positioning element is positioned at a positioning position.
5. The retractable wheel assembly as claimed in claim 1, further comprising a pivot member connected to the pivot shaft and exposed from the housing for rotating the pivot shaft to move the wheel assembly to the exposed position or the retracted position.
6. The folding wheel assembly of claim 1, wherein the resilient member is a torsion spring.
7. The collapsible wheel assembly of claim 1, wherein the wheel base rotates in an axial direction of the wheel axle.
8. The retractable wheel assembly of claim 1, further comprising a rotation spring, one end of the rotation spring is connected to the axle, and the other end of the rotation spring is connected to the wheel seat and provides a resilient force to the wheel seat toward an initial angle.
9. The collapsible wheel assembly of claim 1, further comprising:
at least one positioning magnetic piece arranged on the wheel seat;
at least one magnetic part, which is arranged on an inner wall of the shell and has a polarity different from that of the positioning magnetic part, so that the positioning magnetic part can attract force; and
at least one diamagnetic piece which is arranged on the inner wall of the shell and has the same polarity as the magnetism of the positioning magnetic piece, thereby providing a repulsive force for the positioning magnetic piece;
the wheel seat is positioned at an initial angle through the attraction force and the repulsion force.
10. A collapsible wheel assembly, comprising:
a housing having an accommodating space;
a wheel set disposed on the housing and selectively located at an exposed position or an retracted position corresponding to the accommodating space, the wheel set comprising: a wheel shaft driving the wheel set to be located at the exposed position or the retracted position and including a butting end having a cambered surface structure; a wheel seat connected with the wheel axle; and a wheel body connected with the wheel seat;
a pivot shaft pivoted to the housing, connected to the wheel shaft, and driving the wheel shaft to position the wheel set at the exposed position or the retracted position;
an elastic element, which is arranged in the containing space and connected with the pivot shaft, and one end of the elastic element is connected with the wheel shaft, and the elastic element provides a restoring force of the wheel set towards the inward contraction position; and
a positioning element arranged in the containing space and detachably abutted against the abutting end of the wheel shaft, and when the wheel set is abutted by the positioning element, the wheel set is positioned at the exposed position;
when the wheel set is switched from the retracted position to the exposed position, the cambered surface structure is displaced along one side of the positioning element.
11. The collapsible wheel assembly of claim 10, further comprising a positioning set comprising:
a rod piece arranged on the shell;
the pressing piece is connected with the rod piece, penetrates through the rod piece and is exposed out of the shell; and
the positioning element is penetrated by the rod piece;
when the pressing piece is forced to push the positioning element along an axial direction of the rod piece, the positioning element moves along an axial direction of the rod piece and is separated from the abutting of the abutting end, and the wheel set returns to the retracted position by the restoring force of the elastic element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920573325.7U CN210018160U (en) | 2019-04-25 | 2019-04-25 | Folding wheel assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920573325.7U CN210018160U (en) | 2019-04-25 | 2019-04-25 | Folding wheel assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210018160U true CN210018160U (en) | 2020-02-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920573325.7U Active CN210018160U (en) | 2019-04-25 | 2019-04-25 | Folding wheel assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210018160U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023274152A1 (en) * | 2021-06-29 | 2023-01-05 | 东莞金旺儿童用品有限公司 | Wheel assembly device |
-
2019
- 2019-04-25 CN CN201920573325.7U patent/CN210018160U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023274152A1 (en) * | 2021-06-29 | 2023-01-05 | 东莞金旺儿童用品有限公司 | Wheel assembly device |
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