High-order watch-dog jacking system
The utility model relates to general mechanical lifting device.
Be fixed on the situation of installing in high-order watch-dog (pick up camera), particularly substation, need climb up by holding on to and could arrive, so very inconvenience of maintenance management.When watch-dog is erected on the high-tension bus-bar bar or the trouble that more seems during rod end, and this is a problem that must run into for substation.
The purpose of this utility model is to propose a kind of high-order watch-dog jacking system.It can be lowered to than low level by the operation to this jacking system and handle, and can deal with problems, and can avoid again climbing to a higher point, and ensures safety.
High-order watch-dog jacking system of the present utility model mainly is made up of framework, platform slide plate and trailer coupling, it is characterized in that also being provided with a blocking device in the upper end of framework.
Said trailer coupling is the winding type trailer coupling.
The traction transmission of its platform slide plate is cable transmission or chain sprocket drive.
Said blocking device is that the back is to the roof pressing type blocking device.
Said back is to the roof pressing type blocking device, and the spiral top-pressure part of its little angle of obliquity matches with the wedge structure at the set platform slide plate back side.
Said back is the Clothoid type pin-lift arrangement to the roof pressing type blocking device, and its Clothoid type push rod matches with the concave surface wedge structure at the set platform slide plate back side, and gives locking.
This apparatus structure is simple, and is easy to operate, realizes rise and fall control by draw gear, can manage maintenance than low level to the watch-dog of installing on the platform slide plate, thereby convenience is provided, and also guaranteed safety.
Reaching accompanying drawing by the following examples describes.
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the side direction view of Fig. 1 embodiment.
Fig. 3 is one of structure principle chart of blocking device.
Fig. 4 be blocking device structure principle chart two.
Referring to accompanying drawing.A kind of high-order watch-dog jacking system as shown in Figure 1, 2 mainly is made up of framework 1, platform slide plate 2 and trailer coupling 4, it is characterized in that also being provided with a blocking device 3 in the upper end of framework.The 5th, the transmission cable.Constitute the trailer coupling system by transmission cable, pulley, framework, platform slide plate and external crank.The 10th, the transmission cable of latching device.6, the 7th, the penetration pipe of camera cable, pick up camera as shown in phantom in Figure 2, penetration pipe 6 is fixed on the platform slide plate 2, penetration pipe 7 inner cables and pick up camera together can along and do the lifting activity with respect to framework.The 8th, the elevator axle can external handgrip.The hoisting mechanism transmission can be the cable transmission, also can adopt chain sprocket drive.9 are arranged on that work on the framework supports and fixingly use spider iron, are the parts of framework, build on electric pole and fix with the anchor ear perforation.
Blocking device shown in Fig. 3,4 is the back to the roof pressing type blocking device.
Fig. 3's is back to the roof pressing type blocking device, and the spiral top-pressure part of its little angle of obliquity matches with the concave surface wedge structure at set platform slide plate 2 back sides.So slide plate is as long as compress the spiral top-pressure part guide table slide plate back side by transmission and just can realize the top, it is need not add after putting in place with cable 10 fixing in addition for the transmission that makes latching device that indent is made at the platform back side.
Shown in Figure 4 back be the Clothoid type pin-lift arrangement to the roof pressing type blocking device, its Clothoid type push rod 12 matches with the structure of the wedge 11 at set platform slide plate 2 back sides, and gives locking.Adopt platform slide plate 2 to add the wedge mode behind, add 12 tops of Clothoid type push rod of rigidity, the lower end bending is located, and available screw 13 is fixed on the lower frame shelves of framework, or makes lock mode into, equal like this guarantee reliable and stable.
Locking for platform slide plate 2 can have multitude of different ways, but should be pointed out that the changes and improvements of being done on the basis of said structure principle, still belongs to protection domain of the present utility model.