CN203474397U - Automatic locking device - Google Patents
Automatic locking device Download PDFInfo
- Publication number
- CN203474397U CN203474397U CN201320477670.3U CN201320477670U CN203474397U CN 203474397 U CN203474397 U CN 203474397U CN 201320477670 U CN201320477670 U CN 201320477670U CN 203474397 U CN203474397 U CN 203474397U
- Authority
- CN
- China
- Prior art keywords
- locking
- locking plate
- shaft
- bolt shaft
- lock tube
- 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 an automatic locking device. A locking sleeve (4) is arranged on a fixed piece and is provided with a locking opening (9), and a locking plate (5) is hinged to the locking sleeve (4) through a pin shaft (6) and is located in the locking opening (9). A locking groove (7) is formed in the locking plate (5), an arc (8) is arranged on the outer side, facing the locking opening (9) of the locking sleeve (4), of the locking plate (5), a bolt shaft (3) is arranged on a locked piece, the bolt shaft (3) can enter the locking opening (9) and jacks the locking plate (5) along the arc (8) to enter the locking groove (7), and the locking plate (5) is provided with a handle (10).
Description
Technical field
The utility model relates to a kind of latching system, particularly relates to the automatic locking device on a kind of aerial lift device (high-altitude operation platform) work hurdle.
Background technology
High-altitude operation platform returns the vehicle to the garage and knock off while putting in place, and overhead there is a segment distance on work hurdle, need to just can better enter in workplatform by ladder is auxiliary, ladder is arranged on work hurdle, high-altitude operation platform is when work, and ladder need to be packed up with snap close and pin and fix, and while preventing work, ladder unclamps and falls.
Utility model content
On can automatic lock when technical problem to be solved in the utility model is to provide a kind of locking, automatic locking device simple to operation.
In order to solve the problems of the technologies described above, the automatic locking device that the utility model provides, lock tube is arranged on connecting element, described lock tube is provided with fore shaft, locking plate is hinged on lock tube and in described fore shaft by bearing pin, described locking plate is provided with locked groove, the outside that described locking plate is faced the fore shaft of described lock tube is circular arc, a bolt shaft is arranged on by latch fitting, described bolt shaft can enter described fore shaft and enter in described locked groove along the locking plate described in described circular arc jacking, and described locking plate is provided with handle.
Adopt the automatic locking device of technique scheme, its working forms is: bolt shaft is alignd with fore shaft, when bolt shaft touches snap close, what it contacted first with it is locking plate, locking plate outside is provided with circular arc guiding, when bolt shaft is greater than locking plate gravity and friction force to locking plate thrust, locking plate is because self circular arc directional tagging, can be the center of circle around bearing pin, upwards automatically open, bolt shaft is fallen into after the locked groove of locking plate, its locking plate is because self gravitation effect, meeting whereabouts return, to being connected to the bolt shaft automatic locking on ladder.The handle that need be provided with locking plate upper end while unblanking promotes upward, and locking plate is done center of circle motion around bearing pin, and fore shaft just can be opened, and the bolt shaft in fore shaft just can shift out.Ladder just can be opened.
The utility model has the advantage of: physical construction is simple, reliability is high, on meeting automatic lock, simple to operation while locking.
The automatic locking device of understand on automatic lock when in sum, the utility model is a kind of locking, simple to operation, physical construction is simple, reliability is high.
Accompanying drawing explanation
Fig. 1 is automatic locking device schematic diagram.
Fig. 2 is automatic locking device work schematic diagram.
Fig. 3 is use schematic diagram of the present utility model.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Referring to Fig. 1 and Fig. 2, lock tube 4 is arranged on connecting element, lock tube 4 is provided with fore shaft 9, locking plate 5 is hinged on lock tube 4 and in fore shaft 9 by bearing pin 6, locking plate 5 is provided with locked groove 7, and the outside that locking plate 5 is faced the fore shaft 9 of lock tube 4 is that 8, bolt shaft 3 of circular arc are arranged on by latch fitting, bolt shaft 3 can enter fore shaft 9 and enter in locked groove 7 along circular arc 8 jacking locking plates 5, and locking plate 5 is provided with handle 10.
High-altitude operation platform returns the vehicle to the garage and knock off while putting in place, overhead there is a segment distance on work hurdle 1, need to just can better enter in workplatform by ladder 2 is auxiliary, ladder 2 is arranged on work hurdle 1, high-altitude operation platform is when work, ladder 2 need to be packed up with snap close and pin and fix, and while preventing work, ladder unclamps and falls.
Referring to Fig. 1, Fig. 2 and Fig. 3, locking plate 5 is arranged on lock tube 4 by bearing pin 6, becomes as a whole, and wherein locking plate 5 is around bearing pin 6 for the center of circle is rotated, and snap close integral installation is on work hurdle 1.On ladder 2 erection work hurdles 1, bolt shaft 3 is installed on ladder 2, wherein bolt shaft 3 can be that the center of circle can be rotated around work hurdle 1 erection support with ladder 2.
The handle 10 that need be provided with lock .5 upper end while unblanking promotes upward, and locking plate 5 is done center of circle motion around bearing pin 6, and locked groove 7 aligns fore shaft 9, and the bolt shaft 3 in locked groove 7 just can be moved out to fore shaft 9 and go out from fore shaft 9, and ladder 2 just can be opened.
Claims (1)
1. an automatic locking device, it is characterized in that: lock tube (4) is arranged on connecting element, described lock tube (4) is provided with fore shaft (9), locking plate (5) is hinged on lock tube (4) and in described fore shaft (9) by bearing pin (6), described locking plate (5) is provided with locked groove (7), the outside that described locking plate (5) is faced the fore shaft (9) of described lock tube (4) is circular arc (8), a bolt shaft (3) is arranged on by latch fitting, described bolt shaft (3) can enter described fore shaft (9) and enter in described locked groove (7) along the locking plate (5) described in described circular arc (8) jacking, described locking plate (5) is provided with handle (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320477670.3U CN203474397U (en) | 2013-08-06 | 2013-08-06 | Automatic locking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320477670.3U CN203474397U (en) | 2013-08-06 | 2013-08-06 | Automatic locking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203474397U true CN203474397U (en) | 2014-03-12 |
Family
ID=50222771
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320477670.3U Expired - Fee Related CN203474397U (en) | 2013-08-06 | 2013-08-06 | Automatic locking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203474397U (en) |
-
2013
- 2013-08-06 CN CN201320477670.3U patent/CN203474397U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140312 Termination date: 20180806 |