CN215552327U - Universal and directional automatic switching wheel and child stroller - Google Patents
Universal and directional automatic switching wheel and child stroller Download PDFInfo
- Publication number
- CN215552327U CN215552327U CN202121972970.XU CN202121972970U CN215552327U CN 215552327 U CN215552327 U CN 215552327U CN 202121972970 U CN202121972970 U CN 202121972970U CN 215552327 U CN215552327 U CN 215552327U
- Authority
- CN
- China
- Prior art keywords
- wheel
- rotation stopping
- brake
- sliding
- fork
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Handcart (AREA)
Abstract
The wheel and the child cart with the automatic universal and directional conversion function comprise a wheel, a wheel fork, a wheel shaft and a wheel joint, wherein a ratchet pawl is arranged on the wheel, the wheel is connected to the wheel fork through the wheel shaft in a pivoted mode, the wheel fork is connected with the wheel joint in a rotating mode, a rotation stopping mechanism is arranged between the wheel fork and the wheel joint and used for limiting rotation of the wheel fork and the wheel joint, when the wheel moves to a first direction, the pawl on the wheel cannot drive the ratchet to rotate effectively, the rotation stopping mechanism is effective in effect, the wheel is a directional wheel, when the wheel moves to a second direction opposite to the first direction, the pawl on the wheel drives the ratchet to rotate effectively, the rotation stopping mechanism is ineffective in effect, and the wheel becomes a universal wheel.
Description
Technical Field
The utility model relates to the technical field of carts.
Background
The wheel in front of the conventional cart is the universal wheel, the wheel at the back is the directional wheel, the pushing is convenient, at present, the cart capable of reversing is common in the market, but the conventional pushing generally pushes the wheel to be reversed, the wheel is universal and directional, the wheel is not switched, or the wheel needs to be manually set, and the design is not only inconvenient, but also inconvenient to push.
Disclosure of Invention
The utility model aims to solve the technical problem of providing the automatic wheel universal and directional switching mechanism which is ingenious in design, simple and firm in structure, small in size, low in production cost and capable of directly realizing the wheel universal and directional switching when a pushing handle of a cart is reversed in view of the current technical situation.
The technical scheme adopted by the utility model for solving the technical problems is as follows: a universal wheel capable of automatically converting with orientation comprises a wheel, a wheel fork, a wheel shaft and a wheel joint, wherein a ratchet pawl is arranged on the wheel, the wheel is pivoted on the wheel fork through the wheel shaft, the wheel fork is rotationally connected with the wheel joint, an anti-rotation mechanism is arranged between the wheel fork and the wheel joint and used for limiting rotation of the wheel fork and the wheel joint, when the wheel moves towards a first direction, the pawl on the wheel cannot drive the ratchet to effectively rotate, the anti-rotation mechanism is effective, the wheel is an oriented wheel, when the wheel moves towards a second direction opposite to the first direction, the pawl on the wheel drives the ratchet to effectively rotate, the anti-rotation mechanism is ineffective, and the wheel becomes a universal wheel.
The rotation stopping mechanism comprises a transmission assembly arranged in the wheel fork, a rotation stopping convex part and a rotation stopping concave part arranged at the lower end of the wheel joint, the rotation stopping concave part is used for providing an elastic piece for the rotation stopping convex part to move towards the rotation stopping concave part and arranged in the wheel fork, the rotation stopping convex part is arranged at the upper end of the transmission assembly, the lower end of the transmission assembly interacts with the ratchet wheel, when the transmission assembly moves towards a first direction, the wheel cannot drive the ratchet wheel to effectively rotate, the rotation stopping convex part is clamped and limited in the rotation stopping concave part under the action of the elastic piece, when the wheel is a directional wheel and moves towards a second direction opposite to the first direction, the wheel drives the ratchet wheel to effectively rotate, the rotation stopping convex part at the upper end of the transmission assembly is driven to be separated from the rotation stopping concave part, and the wheel becomes a universal wheel.
The wheel is provided with a brake mechanism, the brake mechanism comprises a sliding piece arranged on the wheel fork in a sliding manner, a brake disc fixedly arranged on the wheel and provided with a brake groove, the sliding piece is provided with a clamping part capable of being inserted into the brake groove, the brake mechanism is provided with an unlocking state and a braking state, the brake mechanism also comprises a driving sliding block, a connecting piece connected between the sliding piece and the driving sliding block, a first elastic piece used for providing the upward movement trend of the driving sliding block and a second elastic piece used for providing the sliding piece to slide towards the brake groove, and a connecting rod and a pressing sliding block used for driving the connecting rod to press downwards when the connecting rod moves relative to the wheel joint are arranged in the wheel joint;
the acting force of the first elastic piece on the sliding piece is opposite to the acting force of the second elastic piece on the sliding piece, the acting force of the first elastic piece on the sliding piece is greater than the acting force of the second elastic piece on the sliding piece, the clamping part is separated from the brake groove under the condition of no external force, and the brake mechanism is in a brake release state; the connecting rod moves to drive the pressing sliding block to move downwards, the driving sliding block which is in contact with the pressing sliding block also moves downwards, the acting force applied by the first elastic piece to the sliding piece fails, the sliding piece slides to the brake groove under the acting force of the second elastic piece, the clamping part is inserted in the brake groove, and the brake mechanism is in a brake state.
The utility model also provides another technical scheme: the utility model provides a children's shallow, children's shallow is last to be set up the above wheel of universal and directional automatic switch, the wheel can be dismantled the installation fast.
The utility model has the beneficial effects that: the universal steering device has the advantages of simple structure, capability of freely switching between the universal driving state and the directional driving state under the driving without external power, convenience and labor saving in operation, flexibility and effectiveness.
Drawings
Fig. 1 is a perspective view of the present invention.
Fig. 2 is a perspective view of the present invention.
Fig. 3 is a perspective view of the transmission assembly of the present invention.
Fig. 4 is a cross-sectional view of the wheel joint of the present invention.
Fig. 5 is a perspective view of the present invention.
FIG. 6 is a perspective view of the brake structure of the present invention.
Fig. 7 is an exploded view of the present invention.
Detailed Description
The present invention will now be described in detail with reference to the accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this application, wherein the description of the embodiment is illustrative of the utility model and is not to be construed as limiting the utility model.
In this embodiment, the directions of "front", "rear", "left", "right", "up", "down", and the like, referred to in this embodiment, are all described with reference to the direction the user faces when pushing, i.e., the direction the push handle lever is in the forward pushing state, and the direction the user faces when pushing is the front.
Specifically, as shown in fig. 1 to 7, the wheel with the automatic universal and directional conversion function comprises a wheel 1, a wheel fork 2, a wheel shaft a and a wheel joint 3, wherein the wheel fork 2 is provided with a ratchet pawl 4, the ratchet pawl 4 comprises a pawl 41 and a ratchet 42, the wheel 1 is pivoted on the wheel fork 1 through the wheel shaft a, the wheel fork 2 is rotatably connected with the wheel joint 3, and a rotation stopping mechanism is arranged between the wheel fork 2 and the wheel joint 3 and used for limiting the rotation of the wheel fork 2 and the wheel joint 3.
As shown in fig. 2, fig. 3 and fig. 4, the rotation stopping mechanism comprises a transmission assembly disposed in the wheel fork 2, a rotation stopping convex portion 6a, a rotation stopping concave portion 6b disposed at the lower end of the wheel joint 3, and an elastic member 65 disposed in the wheel fork 2 for providing a movement tendency of the rotation stopping convex portion 6a toward the rotation stopping concave portion 6b, preferably, the transmission assembly in this embodiment comprises a transmission gear 61, a rack 62 and a connecting member 63, a connecting block 64, the rotation stopping convex portion 6a is disposed at the upper end of the connecting block 64, the elastic member 65 is disposed below the connecting block 64, a circle outside the ratchet wheel 42 is provided with transmission teeth matched with the transmission gear 61, the rack 62, the connecting member 63 and the connecting block 64 form a linkage, when moving in a first direction, the pawl 41 on the wheel 1 cannot drive the ratchet wheel 42 to effectively rotate, the rotation stopping convex portion 6a is locked in the rotation stopping concave portion 6b under the action of the elastic member 65, when the wheel 1 is a directional wheel and moves to a second direction opposite to the first direction, the pawl 41 on the wheel 1 drives the ratchet wheel 42 to effectively rotate, the rotation stopping convex part 6a at the upper end of the driving transmission assembly is driven to be separated from the rotation stopping concave part 6b, and the wheel 1 becomes a universal wheel.
As shown in fig. 5 and 6, the wheel is provided with a brake mechanism, which comprises a sliding part 51 slidably arranged on the wheel fork 2 and a brake disc fixedly arranged on the wheel 2 and provided with a brake groove 5b, wherein the sliding part 51 is provided with a clamping part 5a capable of being inserted into the brake groove, the brake mechanism has a brake release state and a brake state, the brake mechanism further comprises a driving slide block 52, a connecting piece connected between the sliding part 51 and the driving slide block 52, a first elastic piece 53 for providing upward movement tendency of the driving slide block 52 and a second elastic piece 54 for providing sliding of the sliding part 51 to the brake groove, and a connecting rod 55 and a pressing slide block 56 for driving the pressing when the connecting rod 55 moves relative to the wheel connector 3 are arranged in the wheel connector 3;
the acting force of the first elastic piece 53 on the sliding piece 51 is opposite to the acting force of the second elastic piece 54 on the sliding piece 51, the acting force of the first elastic piece on the sliding piece 53 on the sliding piece 51 is larger than the acting force of the second elastic piece 54 on the sliding piece 51, the clamping part 5a is separated from the brake groove 5b under the action of no external force, and the brake mechanism is in a brake release state; the link 55 moves to drive the push-down slider 56 to move downwards, the driving slider 52 in contact with the push-down slider 56 also moves downwards, the acting force of the first elastic element 53 on the sliding element 51 is disabled, the sliding element 51 slides towards the brake slot 5a under the acting force of the second elastic element 54, the clamping part 5b is inserted in the brake slot 5a, and the brake mechanism is in a brake state.
The utility model provides a children's shallow, set up the wheel of above-mentioned universal and directional automatic switch, the wheel can be dismantled the installation fast, and the mechanism here is common general structure, just does not specifically describe.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and those skilled in the art can make various modifications and changes, such as increasing or decreasing the number of transmission components or changing the assembling position of the ratchet and pawl. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. A universal and directional automatic switching wheel is characterized in that: the wheel is provided with a ratchet and pawl transmission mechanism, the wheel is connected to the wheel fork through the wheel shaft in a pivot mode, the wheel fork is connected with the wheel joint in a rotating mode, a rotation stopping mechanism is arranged between the wheel fork and the wheel joint and used for limiting rotation of the wheel fork and the wheel joint, when the wheel moves towards a first direction, a pawl on the wheel cannot drive the ratchet to effectively rotate, the rotation stopping mechanism is effective in action, the wheel is a directional wheel, when the wheel moves towards a second direction opposite to the first direction, the pawl on the wheel drives the ratchet to effectively rotate, the rotation stopping mechanism is ineffective in action, and the wheel becomes a universal wheel.
2. The wheel of claim 1, wherein: the rotation stopping mechanism comprises a transmission assembly arranged in a wheel fork, a rotation stopping convex part arranged on a rotation stopping concave part arranged at the lower end of the wheel joint and used for providing the rotation stopping convex part to an elastic part arranged in the wheel fork along the movement trend of the rotation stopping concave part, the rotation stopping convex part is arranged at the upper end of the transmission assembly, the lower end of the transmission assembly interacts with a ratchet wheel, when the transmission assembly moves towards a first direction, the wheel cannot drive the ratchet wheel to effectively rotate, the rotation stopping convex part is clamped and limited in the rotation stopping concave part under the action of the elastic part, when the wheel is a directional wheel, when the transmission assembly moves towards a second direction opposite to the first direction, the wheel drives the ratchet wheel to effectively rotate, the rotation stopping convex part at the upper end of the transmission assembly is driven to be separated from the rotation stopping concave part, and the wheel becomes a universal wheel.
3. The wheel of claim 1, wherein: the wheel is provided with a brake mechanism which comprises a sliding part arranged on the wheel fork in a sliding manner and a brake disc fixedly arranged on the wheel and provided with a brake groove, the sliding part is provided with a clamping part capable of being inserted into the brake groove, the brake mechanism is provided with an unlocking state and a braking state, the brake mechanism also comprises a driving slide block, a connecting piece connected between the sliding part and the driving slide block, a first elastic piece used for providing upward movement trend of the driving slide block and a second elastic piece used for providing sliding of the sliding part to the brake groove, a connecting rod and a pressing slide block used for driving the connecting rod to press downwards when the connecting rod moves relative to the wheel joint are arranged in the wheel joint, the acting force of the first elastic piece on the sliding part is opposite to the acting force of the second elastic piece on the sliding part, and the acting force of the first elastic piece on the sliding part is greater than the acting force of the second elastic piece on the sliding part, under the action of no external force, the clamping part is separated from the brake groove, and the brake mechanism is in a brake release state; the connecting rod moves to drive the pressing sliding block to move downwards, the driving sliding block which is in contact with the pressing sliding block also moves downwards, the acting force applied by the first elastic piece to the sliding piece fails, the sliding piece slides to the brake groove under the acting force of the second elastic piece, the clamping part is inserted in the brake groove, and the brake mechanism is in a brake state.
4. A stroller, characterized in that: the children's cart is provided with the universal and directional automatic switching wheel as claimed in any one of claims 1-3, and the wheel can be quickly disassembled and assembled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121972970.XU CN215552327U (en) | 2021-08-22 | 2021-08-22 | Universal and directional automatic switching wheel and child stroller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121972970.XU CN215552327U (en) | 2021-08-22 | 2021-08-22 | Universal and directional automatic switching wheel and child stroller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215552327U true CN215552327U (en) | 2022-01-18 |
Family
ID=79840109
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121972970.XU Active CN215552327U (en) | 2021-08-22 | 2021-08-22 | Universal and directional automatic switching wheel and child stroller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215552327U (en) |
-
2021
- 2021-08-22 CN CN202121972970.XU patent/CN215552327U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7273225B2 (en) | Reversible baby stroller with brake structure | |
| US7537093B2 (en) | Brake device for pushcart | |
| CN110171460B (en) | Brake device of children's barrow and children's barrow | |
| US8646657B2 (en) | Electric caulking gun | |
| JPS61501369A (en) | Wheelchair driven by hand pedal reciprocating motion | |
| CN102248961A (en) | Reversible baby carriage | |
| CN215552327U (en) | Universal and directional automatic switching wheel and child stroller | |
| CN215552326U (en) | Universal and directional automatic switching wheel and baby stroller | |
| CN115891503A (en) | Universal and directional automatic switching wheel and child stroller | |
| US6464029B2 (en) | Electrical twist vehicle | |
| CN115431670A (en) | Universal and directional automatic switching wheel and baby stroller | |
| CN210416705U (en) | Brake equipment and children's shallow | |
| CN209861646U (en) | Hand-push wheeled vehicle | |
| CN215322815U (en) | Children's barrow | |
| CN109789888B (en) | Handle folding mechanism, three-folding handle using same and cart with same | |
| GB2430719A (en) | Brake device for pushcart/stroller having a rotary cam | |
| CN201427209Y (en) | Electric chain saw brake device | |
| AU2005100830A4 (en) | Reversible baby stroller with brake structure | |
| CN105816070A (en) | Electric cooker | |
| CN212243523U (en) | Brake mechanism and baby carriage | |
| CN212556461U (en) | Linkage brake mechanism of baby carriage and baby carriage | |
| CN215793996U (en) | Rear wheel brake assembly of baby carriage | |
| CN221193564U (en) | Lifting sliding seat | |
| CN214189779U (en) | Transmission mechanism with left eccentric wheel and right eccentric wheel switching | |
| CN2459246Y (en) | Handle pipe joint |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |