CN203902618U - Self-locking mechanism of man-drawn cart in upslope process - Google Patents
Self-locking mechanism of man-drawn cart in upslope process Download PDFInfo
- Publication number
- CN203902618U CN203902618U CN201420322677.2U CN201420322677U CN203902618U CN 203902618 U CN203902618 U CN 203902618U CN 201420322677 U CN201420322677 U CN 201420322677U CN 203902618 U CN203902618 U CN 203902618U
- Authority
- CN
- China
- Prior art keywords
- locking mechanism
- self
- friction plate
- cart
- stop sleeve
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a self-locking mechanism of a man-drawn cart in the upslope process. The self-locking mechanism comprises a cart body and an axle fixedly connected with wheels, the axle is fixedly connected with a friction plate, and the friction plate is arranged between the wheels and is close to one wheel. The friction plate comprises a left half portion and a right half portion, and clamped inverted-cone-shaped protruding blocks and inverted-cone-shaped clamping grooves are arranged on the contact end faces of the left half portion and the right half portion. The cart body is in bolted connection with a triangular support, and the triangular support is hinged to a locking shifting block capable of abutting against the friction plate through a check pin. The end, abutting against the friction plate, of the locking shifting block is provided with an inclined face tangent to the friction plate, a torsional spring is connected between the locking shifting block and the triangular support, and the locking shifting block is further hinged to a push rod. According to the self-locking mechanism, the cart can be prevented from backing up in the upslope process.
Description
Technical field
The utility model relates to a kind of safety self-locking mechanism, is specifically related to a kind of hutching upward slope self-locking mechanism.
Background technology
At present, comprise that the go-cart that the employing man powers such as similar shopping cart advance is to guarantee safety, be mostly provided with brake gear.But in the process of going up a slope, due to some extraordinary circumstances, user forgets apply the brakes device in the process of going up a slope, thereby make the reversing of go-cart Yan Po road, the safety of article in go-cart is produced and threatened.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of phenomenon that prevents go-cart generation reversing when going up a slope.
In order to solve the problems of the technologies described above, the utility model provides hutching upward slope self-locking mechanism, comprise go-cart body and the wheel shaft that is fixedly connected with wheel, on described go-cart body, be hinged with shift fork, on described wheel shaft, be arranged with the stop sleeve coaxial with it, all sides of wheel shaft are evenly provided with three cylinder backing pins; Described stop sleeve have axial freedom and with wheel shaft sliding block joint, stop sleeve periphery is fixedly connected with fork slot; Between stop sleeve and go-cart body, be connected with stage clip, stop sleeve one end offers the notch adapting with cylinder backing pin; Described notch is arc line shaped.
Adopt the hutching upward slope self-locking mechanism of said structure, before going up a slope, unclamp push rod, make stop shifting block under the effect of torsion spring, its end face and friction disc offset.Now, if wheel rotates forward, friction wheel can rotate under the drive of wheel shaft; If wheel shaft rotates backward, on stop shifting block with the tangent inclined-plane of friction disc and friction disc week side under the effect of friction force, offset, thereby friction wheel cannot be rotated, then cause wheel shaft to rotate, wheel can only rotate forward.Even if run into extraordinary circumstances like this in upward slope process, cannot use or forget apply the brakes device, go-cart also can not be moveed backward, and can guarantee article in go-cart or child's safety.
As the utility model, further improve, described notch bottom is embedded with elastic caoutchouc.Adopt after this structure the impact endurance test shock in the time of can reducing cylinder backing pin and notch bottom connection and touch.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model hutching upward slope self-locking mechanism embodiment.
The specific embodiment
Reference numeral in Figure of description comprises: wheel 1, go-cart body 2, stop sleeve 3, stage clip 4, wheel shaft 5.
Below in conjunction with drawings and Examples, technical solutions of the utility model are described in further detail:
As shown in Figure 1, the hutching upward slope self-locking mechanism of a kind of embodiment of the utility model, comprise go-cart body 2 and the wheel shaft 5 that is fixedly connected with wheel 1, on described go-cart body 2, be hinged with shift fork, on described wheel shaft 5, be arranged with the stop sleeve coaxial with it 3,5 weeks sides of wheel shaft are evenly provided with three cylinder backing pins; Described stop sleeve 3 moves along wheel shaft 5 axial directions only, and stop sleeve 3 peripheries are fixedly connected with fork slot; Between stop sleeve 3 and go-cart body 2, be connected with stage clip 4, stop sleeve 3 one end offer the notch adapting with cylinder backing pin; Described notch is arc line shaped.
Before going up a slope, unclamp shift fork, make stop sleeve 3 under the effect of stage clip 4, its port and cylinder backing pin offset.Now, if wheel 1 rotates forward, cylinder backing pin can rotate under the drive of wheel shaft 5; If wheel shaft 5 rotates backward, cylinder backing pin can be slided as in notch, thereby causes wheel shaft 5 to rotate, and wheel 1 can only rotate forward.Even if run into extraordinary circumstances like this in upward slope process, cannot use or forget apply the brakes device, go-cart also can not be moveed backward, and can guarantee the safety of article in go-cart.
Below described is by reference to the accompanying drawings only preferred implementation of the present utility model; but the utility model is not limited to above-mentioned embodiment; should be understood that; for a person skilled in the art; do not departing under the prerequisite of the utility model structure; can also make various distortion and improvement, these also should be considered as protection domain of the present utility model, and these can not affect effect and practical applicability that the utility model is implemented.
Claims (2)
1. a hutching upward slope self-locking mechanism, comprise go-cart body and the wheel shaft that is fixedly connected with wheel, it is characterized in that: on described go-cart body, be hinged with shift fork, be arranged with the stop sleeve coaxial with it on described wheel shaft, all sides of wheel shaft are evenly provided with three cylinder backing pins; Described stop sleeve have axial freedom and with wheel shaft sliding block joint, stop sleeve periphery is fixedly connected with fork slot; Between stop sleeve and go-cart body, be connected with stage clip, stop sleeve one end offers the notch adapting with cylinder backing pin; Described notch is linear.
2. hutching upward slope self-locking mechanism according to claim 1, is characterized in that: described notch bottom is embedded with elastic caoutchouc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420322677.2U CN203902618U (en) | 2014-06-18 | 2014-06-18 | Self-locking mechanism of man-drawn cart in upslope process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420322677.2U CN203902618U (en) | 2014-06-18 | 2014-06-18 | Self-locking mechanism of man-drawn cart in upslope process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203902618U true CN203902618U (en) | 2014-10-29 |
Family
ID=51776905
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420322677.2U Expired - Fee Related CN203902618U (en) | 2014-06-18 | 2014-06-18 | Self-locking mechanism of man-drawn cart in upslope process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203902618U (en) |
-
2014
- 2014-06-18 CN CN201420322677.2U patent/CN203902618U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141029 Termination date: 20150618 |
|
| EXPY | Termination of patent right or utility model |