CN210618233U - Shopping cart and wheel structure thereof - Google Patents
Shopping cart and wheel structure thereof Download PDFInfo
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- CN210618233U CN210618233U CN201921217870.9U CN201921217870U CN210618233U CN 210618233 U CN210618233 U CN 210618233U CN 201921217870 U CN201921217870 U CN 201921217870U CN 210618233 U CN210618233 U CN 210618233U
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Abstract
The utility model discloses a shopping cart and wheel structure thereof, this wheel structure includes: the wheel frame is provided with a first through hole; the wheel axle connecting structure comprises a connecting piece and an elastic clamping piece; the connecting piece is connected with the wheel frame, a second through hole which is coaxial with the first through hole is arranged on the connecting piece, and the second through hole is communicated with the first through hole to form a wheel axle mounting hole for a wheel axle to pass through; the elastic clamping piece comprises a clamping section, and the clamping section is positioned on the wheel axle mounting hole; when the elastic clamping piece is deformed by external force, the clamping section is in an open state and is separated from the wheel axle, so that the wheel axle enters or leaves the wheel axle mounting hole; when the elastic clamping piece is not deformed by external force, the clamping section is in a closed state and is in contact with the wheel axle so as to fix the wheel axle in the wheel axle mounting hole. The utility model discloses be convenient for with wheel structure dismouting to the shopping cart on, simplify the change process of wheel structure.
Description
Technical Field
The utility model relates to a shopping cart technical field, in particular to shopping cart and wheel structure thereof.
Background
When the middle-aged and old people buy the food material in the vegetable market, the food material can be loaded by the shopping cart, so that the whole shopping process becomes convenient and easy. However, when the shopping cart encounters multiple levels of stairs, it becomes a nuisance to lift the cart up the stairs. To overcome this deficiency, people try to use triangular wheels as tools for going up and down stairs on the shopping cart, so that the shopping cart has the function of climbing stairs. Meanwhile, manufacturers generally fix the triangular wheel on the rotating shaft by means of fasteners such as bolts in order to prevent the triangular wheel from loosening during use. However, this kind of installation method may cause the triangular wheel to be damaged and replaced, and the user may not replace the triangular wheel in the absence of a tool, so that the replacement process becomes very troublesome.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a wheel structure, it is convenient for with the wheel structure dismouting to the shopping cart on, simplify the change process of wheel structure.
In order to realize the purpose, the technical scheme of the utility model is that:
a wheel structure comprising: the wheel frame is detachably connected with a wheel shaft of the shopping cart, and a first through hole is formed in the wheel frame; the wheel axle connecting structure comprises a connecting piece and an elastic clamping piece; the connecting piece is connected with the wheel frame, a second through hole which is coaxial with the first through hole is formed in the connecting piece, and the second through hole is communicated with the first through hole to form a wheel axle mounting hole for a wheel axle to pass through; the elastic clamping piece comprises a clamping section, and the clamping section is positioned on the wheel axle mounting hole; when the elastic clamping piece is deformed by external force, the clamping section is in an open state and is separated from the wheel axle, so that the wheel axle enters or leaves the wheel axle mounting hole; when the elastic clamping piece is not deformed by external force, the clamping section is in a closed state and is in contact with the wheel shaft so as to fix the wheel shaft in the wheel shaft mounting hole.
By adopting the wheel structure with the structure, when the elastic clamping piece is deformed by external force, the clamping section is in an open state in the wheel axle mounting hole and is separated from the wheel axle, so that the wheel axle is separated from the wheel axle mounting hole; when the elastic clamping piece is not deformed by external force, the clamping section is in a closed state and is in contact with the wheel shaft to fix the wheel shaft in the wheel shaft mounting hole, so that a user can disassemble and assemble the wheel structure on the wheel shaft of the shopping cart as long as the elastic clamping piece is deformed by force when the wheel structure is disassembled and assembled on the shopping cart, and the replacement process of the wheel structure is simplified.
Furthermore, the connecting piece is also provided with a spreading part, and the left side and the right side of the spreading part are respectively provided with a first inclined plane; the elastic clamping piece also comprises an expanding section matched with the first inclined plane, and the expanding section is connected with one end of the clamping section; when the elastic clamping piece moves towards the direction close to the opening part, the opening section is matched with the first inclined surface, so that the clamping section is converted into an opening state from a closing state.
Furthermore, the elastic clamping piece also comprises a connecting section, the connecting section is connected with the other end of the clamping section to form a limiting point, and the limiting point is used for preventing the elastic clamping piece from being separated from the connecting piece; the connecting piece is also provided with a fixing part; when the clamping section is in a closed state, the left end and the right end of the fixing part are abutted against the limiting points.
Furthermore, the left side and the right side of the fixing part are respectively provided with a second inclined plane; when the elastic clamping piece moves towards the direction close to the fixing part, the opening section is matched with the second inclined surface, so that the elastic clamping piece is connected with the connecting piece, and the clamping section is located in the wheel axle mounting hole.
Furthermore, the elastic clamping piece also comprises a pressing section, and the pressing section is connected with the connecting section.
Furthermore, the pressing section and the connecting section are obliquely arranged, and an included angle is formed between a first axis where the pressing section is located and a second axis where the connecting section is located.
Furthermore, the wheel frame also comprises three wheel connecting assemblies which are uniformly distributed on the circumference, and each wheel connecting assembly is connected with one wheel; the first through hole is arranged at the center of the wheel frame.
Furthermore, an annular groove is formed in the end part of the wheel shaft; when the clamping section is in a closed state, the clamping section is clamped in the annular groove, so that the wheel structure is fixed on the wheel shaft and rotates around the axial direction of the wheel shaft.
The utility model also provides a shopping cart, it includes foretell wheel structure.
For a better understanding and an implementation, the present invention is described in detail below with reference to the accompanying drawings.
Drawings
Fig. 1 is a front view of the wheel structure of the present invention;
fig. 2 is a partial schematic view of the clamping section in the wheel axle connecting structure according to the present invention in a closed state;
fig. 3 is a partial schematic view of the clamping section in the axle connecting structure of the present invention in an open state;
fig. 4 is a partial schematic view of the coupling member of the wheel axle coupling structure of the present invention detachably coupled to the resilient clamping member;
fig. 5 is a side view of the wheel structure and axle of the present invention.
[ reference numerals ]
100 axle 110 ring groove
200 wheel frame 210 wheel connection assembly 220 wheel
300 wheel shaft connecting structure 310 connecting piece 311 wheel shaft mounting hole
312 spreading part 313 first inclined plane
314 fixed part 315 second inclined plane
316 connecting the bottom plate 317 to the top plate
320 resilient clamp 321 clamping segment
322 expanding section 323 connecting section
324 limit point 325 pressing section
330 protective cover
Detailed Description
In order to fully understand the objects, features and effects of the present invention, the conception, specific structure and technical effects of the present invention will be further described with reference to the accompanying drawings.
As shown in fig. 1 to 5, a wheel structure includes: the wheel frame 200 is detachably connected with the wheel shaft 100 of the shopping cart, and a first through hole is formed in the wheel frame 200; the wheel axle connecting structure 300 comprises a connecting piece 310 and an elastic clamping piece 320; the connecting piece 310 is connected with the wheel frame 200, a second through hole coaxial with the first through hole is formed in the connecting piece 310, and the second through hole is communicated with the first through hole to form a wheel axle mounting hole 311 for the wheel axle 100 to pass through; the elastic clamping piece 320 comprises a clamping section 321, and the clamping section 321 is positioned on the axle mounting hole; when the elastic clamping member 320 is deformed by an external force, the clamping section 321 is in an open state and separated from the axle 100, so that the axle 100 enters or leaves the axle mounting hole 311; when the elastic clamp 320 is not deformed by an external force, the clamping section 321 is in a closed state and contacts the axle 100 to fix the axle 100 in the axle mounting hole 311.
By adopting the wheel structure with the structure, when the elastic clamping piece is deformed by external force, the clamping section is in an open state in the wheel axle mounting hole and is separated from the wheel axle, so that the wheel axle is separated from the wheel axle mounting hole; when the elastic clamping piece is not deformed by external force, the clamping section is in a closed state and is in contact with the wheel shaft to fix the wheel shaft in the wheel shaft mounting hole, so that a user can disassemble and assemble the wheel structure on the wheel shaft of the shopping cart as long as the elastic clamping piece is deformed by force when the wheel structure is disassembled and assembled on the shopping cart, and the replacement process of the wheel structure is simplified.
As shown in fig. 2 and 3, further, a spreading portion 312 is further disposed on the connecting member 310, and first inclined surfaces 313 are respectively disposed on the left side and the right side of the spreading portion 312; the elastic clamping piece 320 further comprises a spreading section 322 matched with the first inclined surface 313, and the spreading section 322 is connected with one end of the clamping section 321; when the elastic clamping member 320 moves towards the direction approaching the opening part 312, the opening section 322 cooperates with the first inclined surface 313 to convert the clamping section 321 from the closed state to the open state. When a user needs to assemble the wheel structure on the wheel shaft, the user operates the elastic clamping piece to enable the elastic clamping piece to move towards the direction close to the opening portion along the radial direction of the wheel shaft installation hole, the opening section and the first inclined plane are matched to work (namely the opening section moves along the inclined direction of the first inclined plane), the clamping section is converted into an opening state from a closing state, and therefore the wheel shaft enters or departs from the wheel shaft installation hole.
As shown in fig. 2, further, the elastic clamping member 320 further includes a connecting section 323, the connecting section 323 is connected to the other end of the clamping section 321 to form a limit point 324, and the limit point is used for preventing the elastic clamping member 320 from being separated from the connecting member 310; the connecting piece 310 is further provided with a fixing part 314; when the clamping section 321 is in the closed state, the left and right ends of the fixing portion 314 abut against the limiting points 324. The left end and the right end of the fixing part are abutted against the limiting points, so that the elastic clamping part cannot move towards the direction close to the fixing part by self without being influenced by external force, the position of the elastic clamping part cannot be changed, and the wheel structure and the wheel shaft are firmly connected and are not easy to loosen.
As shown in fig. 2 and 4, further, the left and right sides of the fixing portion 314 are respectively provided with a second inclined surface 315; when the elastic clamp 320 moves toward the fixing portion 314, the expanding portion 322 engages with the second inclined surface 315, so that the elastic clamp 320 is connected to the connecting member 310 and the clamping portion 321 is located in the axle mounting hole 311. The expanding section 322 is matched with the second inclined surface 315 to connect the elastic clamping piece 320 with the connecting piece 310; the clamping section is an inclined plane, the elastic clamping piece has elasticity, and a user can apply external force to the elastic clamping piece to enable the elastic clamping piece to move towards the direction close to the fixing part, so that the elastic clamping piece is separated from the connecting piece, the detachable connection of the elastic clamping piece and the connecting piece is achieved, damaged parts can be replaced conveniently, and the maintenance cost is reduced.
As shown in fig. 2 to 4, preferably, the connecting member is further provided with a connecting bottom plate 316 and a connecting top plate 317, the connecting bottom plate is connected with the wheel frame, the connecting top plate is located above the connecting bottom plate, and a limit space is formed between the connecting top plate and the connecting bottom plate; the opening part, the fixing part, the pressing section and the connecting section of the elastic clamping piece are all located in the limiting space, and when the elastic clamping piece deforms, the limiting space is used for limiting the moving direction of the elastic clamping piece, so that the elastic clamping piece can only move in the radial direction of the wheel axle mounting hole.
As shown in fig. 2 to 4, the elastic clamping member 320 further includes a pressing section 325, and the pressing section 325 is connected to the connecting section 323. The pressing section is operated to apply an external force to the elastic clamp.
As shown in fig. 5, further, the pressing section 325 and the connecting section 323 are arranged obliquely, and an included angle is formed between a first axis of the pressing section and a second axis of the connecting section. By means of the inclined arrangement, the user can better exert an external force on the spring clamp by pressing the pressing section.
Further, the wheel frame 200 further includes three wheel connecting assemblies 210 uniformly distributed on the circumference, and each wheel connecting assembly is connected with one wheel 220; the first through hole is arranged at the center of the wheel frame.
As shown in fig. 5, further, an annular groove 110 is provided at the end of the axle 100; when the clamping section is in a closed state, the clamping section is clamped in the annular groove, so that the wheel structure is fixed on the wheel shaft and rotates around the axial direction of the wheel shaft. In addition, the clamping section can be clamped in the annular groove when in a closed state, the clamping section is limited by the annular groove, so that the connection relation between the wheel structure and the wheel shaft is firmer, and meanwhile, the clamping section can rotate around the axial direction of the wheel shaft in the annular groove, so that the wheel structures on the left side and the right side of the shopping cart can independently rotate when climbing stairs, and the shopping cart is suitable for stairs with partial step defects.
Preferably, the axle connecting structure 300 further includes a protective cover 330 disposed over the connecting member 310 to protect the connecting member and the resilient clamping member.
The utility model also provides a shopping cart, it includes foretell wheel structure.
The dismounting process of the wheel structure and the wheel shaft of the shopping cart is as follows:
when a user needs to detach the old wheel structure from the wheel axle of the shopping cart, the user presses the pressing section of the elastic clamping piece to enable the opening section of the elastic clamping piece to work in cooperation with the first inclined plane, the elastic clamping piece is forced to deform, and therefore the clamping section is converted from a closed state to an open state and separated from the annular groove of the wheel axle, and the wheel axle is separated from the wheel axle mounting hole; after the wheel axle is separated from the wheel axle mounting hole, a user releases the pressing of the elastic clamping piece, and the elastic clamping piece is converted into a closed state from an open state due to elastic restoring force so as to be convenient for resetting the elastic clamping piece.
When a user needs to install a new wheel structure into the wheel shaft of the shopping cart, the user presses the pressing section of the elastic clamping piece to enable the opening section of the elastic clamping piece to work in cooperation with the first inclined plane, the elastic clamping piece is forced to deform, and therefore the clamping section is converted from a closed state to an open state, and the wheel shaft enters the wheel shaft mounting hole. After the wheel shaft is separated from the wheel shaft mounting hole, a user loosens the pressing of the elastic clamping piece, and the elastic clamping piece is converted into a closed state from an open state due to elastic restoring force, so that the clamping section is clamped in the annular groove, and the mounting of the wheel structure is completed.
It is to be noted that different embodiments or examples and features of different embodiments or examples described in this specification may be combined and combined by one skilled in the art without contradiction.
In the description of the present invention, it should be understood that the terms "vertical", "horizontal", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the scope of the present invention.
If the terms "first," "second," etc. are used herein to define parts, those skilled in the art will recognize that: the use of "first" and "second" is merely for convenience in describing the invention and to simplify the description, and the words are not intended to have a special meaning unless otherwise stated.
The present invention is not limited to the above embodiment, and if various modifications or variations of the present invention do not depart from the spirit and scope of the present invention, they are intended to be covered if they fall within the scope of the claims and the equivalent technology of the present invention.
Claims (9)
1. A wheel structure, characterized by comprising:
the wheel frame is detachably connected with a wheel shaft of the shopping cart, and a first through hole is formed in the wheel frame;
the wheel axle connecting structure comprises a connecting piece and an elastic clamping piece;
the connecting piece is connected with the wheel frame, a second through hole which is coaxial with the first through hole is formed in the connecting piece, and the second through hole is communicated with the first through hole to form a wheel axle mounting hole for a wheel axle to pass through;
the elastic clamping piece comprises a clamping section, and the clamping section is positioned on the wheel axle mounting hole;
when the elastic clamping piece is deformed by external force, the clamping section is in an open state and is separated from the wheel axle, so that the wheel axle enters or leaves the wheel axle mounting hole;
when the elastic clamping piece is not deformed by external force, the clamping section is in a closed state and is in contact with the wheel shaft so as to fix the wheel shaft in the wheel shaft mounting hole.
2. The wheel structure according to claim 1, wherein:
the connecting piece is also provided with a spreading part, and the left side and the right side of the spreading part are respectively provided with a first inclined plane;
the elastic clamping piece also comprises an expanding section matched with the first inclined plane, and the expanding section is connected with one end of the clamping section;
when the elastic clamping piece moves towards the direction close to the opening part, the opening section is matched with the first inclined surface, so that the clamping section is converted into an opening state from a closing state.
3. The wheel structure according to claim 2, wherein:
the elastic clamping piece also comprises a connecting section, the connecting section is connected with the other end of the clamping section to form a limiting point, and the limiting point is used for preventing the elastic clamping piece from being separated from the connecting piece;
the connecting piece is also provided with a fixing part;
when the clamping section is in a closed state, the left end and the right end of the fixing part are abutted against the limiting points.
4. The wheel structure according to claim 3, wherein:
the left side and the right side of the fixing part are respectively provided with a second inclined plane;
when the elastic clamping piece moves towards the direction close to the fixing part, the opening section is matched with the second inclined surface, so that the elastic clamping piece is connected with the connecting piece, and the clamping section is located in the wheel axle mounting hole.
5. The wheel structure according to claim 3 or 4, wherein:
the elastic clamping piece further comprises a pressing section, and the pressing section is connected with the connecting section.
6. The wheel structure according to claim 5, wherein:
the pressing section and the connecting section are obliquely arranged, and an included angle is formed between a first axis where the pressing section is located and a second axis where the connecting section is located.
7. The wheel structure according to claim 1, wherein:
the wheel frame also comprises three wheel connecting assemblies which are uniformly distributed on the circumference, and each wheel connecting assembly is connected with one wheel;
the first through hole is arranged at the center of the wheel frame.
8. The wheel structure according to claim 1, wherein:
an annular groove is formed in the end part of the wheel shaft;
when the clamping section is in a closed state, the clamping section is clamped in the annular groove, so that the wheel structure is fixed on the wheel shaft and rotates around the axial direction of the wheel shaft.
9. A shopping cart comprising a wheel structure according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921217870.9U CN210618233U (en) | 2019-07-29 | 2019-07-29 | Shopping cart and wheel structure thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921217870.9U CN210618233U (en) | 2019-07-29 | 2019-07-29 | Shopping cart and wheel structure thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210618233U true CN210618233U (en) | 2020-05-26 |
Family
ID=70752925
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921217870.9U Active CN210618233U (en) | 2019-07-29 | 2019-07-29 | Shopping cart and wheel structure thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210618233U (en) |
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2019
- 2019-07-29 CN CN201921217870.9U patent/CN210618233U/en active Active
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