CN204196901U - Dolly self-locking device - Google Patents
Dolly self-locking device Download PDFInfo
- Publication number
- CN204196901U CN204196901U CN201420711014.XU CN201420711014U CN204196901U CN 204196901 U CN204196901 U CN 204196901U CN 201420711014 U CN201420711014 U CN 201420711014U CN 204196901 U CN204196901 U CN 204196901U
- Authority
- CN
- China
- Prior art keywords
- spring
- latch segment
- locking device
- ball
- crank shaft
- 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
Links
Abstract
The utility model relates to a kind of self-locking device, especially a kind of dolly self-locking device; The purpose of this utility model is to provide a kind of dolly self-locking device with being with auto-lock function easy to use; It is made up of track, square steel, latch segment, ball, spring, crank shaft, steel rope and trammel beam; Track has two, ball is connected with spring, square steel is arranged on the midway location of two tracks, latch segment is arranged on the top of square steel by reciprocating device, at least be provided with two skewed slots at the upper surface of latch segment, be provided with ball and spring in each skewed slot and spring is fixed on skewed slot, be also provided with crank shaft at the two ends of latch segment, the two ends of crank shaft are respectively equipped with steel rope, and steel rope is also connected with trammel beam; Therefore, it has the features such as structure is simple, easy to use and reasonable in design.
Description
Technical field
The utility model relates to a kind of self-locking device, especially a kind of dolly self-locking device.
Background technology
The dolly in a lot of transport mineral reserve or colliery generally all manually transports, thus there is the shortcoming increasing labour intensity; Therefore, have the existence of transport trolley on the market, but there is the shortcomings such as self-locking effect is bad in these transpories trolley.
For above problem, be badly in need of us and solve.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of dolly self-locking device with being with auto-lock function easy to use.
In order to achieve the above object, a kind of dolly self-locking device designed by the utility model, it is made up of track, square steel, latch segment, ball, spring, crank shaft, steel rope and trammel beam; Track has two, ball is connected with spring, square steel is arranged on the midway location of two tracks, latch segment is arranged on the top of square steel by reciprocating device, at least be provided with two skewed slots at the upper surface of latch segment, be provided with ball and spring in each skewed slot and spring is fixed on skewed slot, be also provided with crank shaft at the two ends of latch segment, the two ends of crank shaft are respectively equipped with steel rope, and steel rope is also connected with trammel beam.
The principle of work of this dolly self-locking device is: being placed into by the dolly of transport on latch segment is the below that latch segment and trammel beam are positioned at dolly, and when normally running, steel rope pulls dolly to advance, and crank shaft is lifted by steel rope and chooses sky; If run midway to stop, the unforeseen circumstances such as wire cable rupture or power failure, crank shaft down falls, promoting spring makes ball move ahead, because the contact surface between latch segment and ball is inclined-plane, ball can contact with square steel, thus relies on the locked dolly of friction force between ball and square steel to advance, and car safety is stopped.
According to the above, a kind of dolly self-locking device designed by the utility model, when drive Inner orbiting; if run into suddenly under losing powered attendant-controlled wheelchairs situation; rely on the self-locking device of its own band, dolly can be made out of service, to reach the effect of reserved resource.Therefore, it has the features such as structure is simple, easy to use and reasonable in design.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model will be further described.
As shown in Figure 1, a kind of dolly self-locking device that the present embodiment describes, it is made up of track 1, square steel 2, latch segment 3, ball 4, spring 5, crank shaft 6, steel rope 7 and trammel beam 8; Track 1 has two, ball 4 is connected with spring 5, square steel 2 is arranged on the midway location of two tracks 1, latch segment 3 is arranged on the top of square steel 2 by reciprocating device, be provided with two skewed slots at the upper surface of latch segment 3, be provided with ball 4 and spring 5 in two skewed slots and spring 5 is fixed on skewed slot, be also provided with crank shaft 6 at the two ends of latch segment 3, the two ends of crank shaft 6 are respectively equipped with steel rope 7, and steel rope 7 is also connected with trammel beam 8.
Claims (1)
1. a dolly self-locking device, is characterized in that: it is made up of track, square steel, latch segment, ball, spring, crank shaft, steel rope and trammel beam; Track has two, ball is connected with spring, square steel is arranged on the midway location of two tracks, latch segment is arranged on the top of square steel by reciprocating device, at least be provided with two skewed slots at the upper surface of latch segment, be provided with ball and spring in each skewed slot and spring is fixed on skewed slot, be also provided with crank shaft at the two ends of latch segment, the two ends of crank shaft are respectively equipped with steel rope, and steel rope is also connected with trammel beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420711014.XU CN204196901U (en) | 2014-11-25 | 2014-11-25 | Dolly self-locking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420711014.XU CN204196901U (en) | 2014-11-25 | 2014-11-25 | Dolly self-locking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204196901U true CN204196901U (en) | 2015-03-11 |
Family
ID=52654889
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420711014.XU Expired - Fee Related CN204196901U (en) | 2014-11-25 | 2014-11-25 | Dolly self-locking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204196901U (en) |
-
2014
- 2014-11-25 CN CN201420711014.XU patent/CN204196901U/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: 20150311 Termination date: 20201125 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |