Device for closing the drainage slits

 

(57) Abstract:

The invention relates to the construction and firefighting techniques and may be used, in particular, when dealing with grassroots forest fires in permafrost by means of barrage mineralized strips formed by cutting a slot in the ground with the hair removed from her soil layer adjacent combustible forest materials and subsequent (after the fire) by the specified closing the gap. Device for closing the drainage slit contains a working body and cravings, while working the body in the form of lateral cutting of struts connected in the lower part of the spurs knife and folded in the back towards each other. The front part of the cutting racks are made with beveled rise to the back of the working body, the lower part of the additionally connected by a jumper installed for spurs knife on the underside of the lintel fixed the sender, the link is connected to the sender and is equipped with a bracket, on which are mounted supporting wheels. Spurs knife is at an angle to the horizon, providing his samouglubleniyu in the process. Improving the quality of closed drainage slits. 3 Il.

A device for closing the drainage slit containing the working body and cravings, while working the body in the form mounted on the longitudinal axis of the rod and tapering at the rear of the chute having a cross-sectional V-shape, the front part of the side walls which performs the function of cutting racks [1].

A disadvantage of the known device is the poor quality of post-closing slit used to stop the forest ground fires in permafrost. Under these conditions, litter, under moss-lichen cover, at the level of which are edges of the slit, thaws in the summer, incomplete and riddled with ice crystals, which makes it fragile and unsuitable for the formation of the arch bending the cut edges towards each other, which provides the technology works using this device. Low quality of closures protect the defrosting layer of permafrost, accompanied by the formation of dips and water logging areas;

sliding areas on the slope with the fall of standing trees on it;

the allocation of the thawed soil moisture, which causes the flow of water soil erosion and silting of reservoirs, which leads to pollution of spawning grounds of valuable fish species.

The closest in technical essence to the invention is a device for closing the drainage slit containing the working body and cravings, while working body includes side cutting racks connected in the lower part with spurs knife and have dermopatico-svoeobrazoval made in the form located ahead of the cutting racks unilateral no-till plow body and adjacent the rear longitudinal shield [2].

This device is characterized by the same shortcomings as its use is also associated with bending of the litter that permafrost is unacceptable.

The objective of the invention is to improve the quality of closed drainage slit by replacing bending clipped litter, with subsequent lowering of the slot cut on the edges of the slit of the two tapes litter and slide them navstrechu slit, containing the working body and cravings, while working the body in the form of lateral cutting of struts connected in the lower part of the spurs knife and folded in the back towards each other, according to the invention, the front part of the cutting racks are made with beveled rise to the back of the working body, the lower part of the additionally connected by a jumper installed for spurs knife on the underside of the lintel fixed the sender, the link is connected to the sender and is equipped with a bracket, on which are mounted supporting wheels, and spurs the knife is at an angle to the horizon, providing his samouglubleniyu in the process.

In Fig. 1 shows a device for closing the drainage slits, side view; Fig. 2 is a view As in Fig. 1; Fig. 3 is a closed drainage slit.

Device for closing the drainage slit contains a side cutting uprights 1 connected in the lower part of the spurs knife 2 and installed it (downstream) bridge 3. The front part of the rack 1 angled 35oto the horizon with the rise to their back, the knife 2 is angled 3-5o. Rack 1 in the back bent in the opposite direction. On the lower surface is vannoy on it a pair of supporting wheels 7. Thrust 5 a second end connected to the traction means (not shown).

Device for closing the drainage slits works as follows.

Before you begin the device is set so that the sender 4 housed in the cavity drainage slit, pull 5 free end attached to the traction vehicle and start moving. The knife 2, by installing it at an angle to the horizon, buried in the litter of 8, cutting from the bottom on both sides of the drainage slits. At the same time the rack 1 front bevelled edges pruned litter 8 laterally, forming two separate array tape 9 to be shifted toward each other in the rear part of the working body and closing the drain opening. Further deepening the working body is prevented by the supporting wheels 7.

Thanks to the beveled front edges of the uprights 1 by cutting the litter 8 comes with slip, which increases the cutting efficiency and eliminates the beat up a working body of the plant remains. Having support wheels 7 provides such depth of the working body, in which it passes under a layer located above the litter 8 moss-lichen cover 10 without disturbing its integrity, and therefore,one important gap. Join thrust 5 to the lower part of the working body (to the sender 4) prevents the wrapping his vegetable fibers.

Tape 9 are moved towards each other by a distance sufficient to close the drainage slits, but not exceeding one-half of their width, which prevents the possibility of tipping over into the cavity gap. This distance depends on the width of the concrete drainage slots and is provided by the ratio of the working body in the front and the back.

In the litter of 8 after completion of the unit are two grooves 11, covered with moss-lichen cover 10, which is provided by the translation surface runoff of moisture in the soil, which helps prevent soil erosion.

Sources of information

1. A. S. USSR N 630360, CL E 02 F 5/12, 1977.

2. A. S. USSR N 968217, CL E 02 F 5/10, 1980.

Device for closing the drainage slit containing the working body and cravings, while working the body in the form of lateral cutting of struts connected in the lower part of the spurs knife and folded in the back towards each other, characterized in that the front part of the cutting racks are made with beveled rise to the back of Ragna the surface of the jumper fixed sender, the link is connected to the sender and is equipped with a bracket, on which are mounted supporting wheels, and spurs the knife is at an angle to the horizon, providing his samouglubleniyu in the process.

 

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