RU150685U1 - CAPACITY HATCH LOCK - Google Patents

Abstract

1. The shutter of the tank hatch, comprising a lid equipped with rollers mounted on it, interacting with guides, a locking device, an opening mechanism, characterized in that rocker arms are installed on two sides of the lid, each of which is movably connected to the boiler at one end and the other at lid. 2. The shutter of the tank hatch according to claim 1, characterized in that the connection of the rocker arm with the lid is as close as possible to the lower front corner of the lid. The shutter of the tank hatch according to claim 1, characterized in that the rocker arm and the boiler are connected further from the middle of the hatch towards the opening of the lid.

Description

The utility model relates to closures of hatches of vehicles, mainly tank wagons, but can also be used in stationary tanks, containers, tankers.

A well-known shutter of a tank hatch comprising a cover equipped with brackets with rollers interacting with guides located on the container, two of which are located on the sides of the cover and the third on the shift side (see USSR author's certificate No. 668836 B61D 5/08, B65D 87 / 40, B63B 19/18).

The disadvantage of the shutter for the hatch as.with. No. 668836 is the mandatory execution of the bevel of the hatch in the direction of shift, which provides for an uneven depth of the hatch. This design of the hatch makes it difficult to operate specific devices located in the hatch. In addition, the provided mechanism for opening the lid in the form of levers interacting with the lid does not provide complete opening of the lid, but is only involved in the initial stage - when lifting and rolling out onto the rails. Full opening of the lid is done by manual shift.

A hatch shutter is also known (adopted as a prototype), including a cover movably connected to an arm mounted on a movable carriage equipped with four rollers - two on each lateral longitudinal element, interacting with guides in the form of gutters that can only be moved along the gutters. On the bracket on a common axis with the cover, torsion springs are mounted, interacting with the cover elements and designed to facilitate its lifting by a certain angle. Stops and a locking device are provided on the bracket to hold the lid raised to the prescribed angle. To raise the cover by a certain angle, it is lifted by the provided handles, torsion springs with levers interacting with the brackets of the cover help to facilitate its lifting. Upon reaching the intended position, the lid is fixed on the stop connected to the carriage. In the raised position, the lid slides along the guides until the hatch is completely opened (see Tanks for liquid pitch. Specialized tanks for the transport of dangerous goods. Reference manual. Moscow. 1993 Section 4.2.1. Figure 4.2.1).

The disadvantages of this shutter hatch are:

- the complexity of the mechanism for opening the hatch, requiring significant material and labor costs;

- the cantilever position of the cover in its elevated position relative to the carriage, the rollers of which interact with the guides, leads to a skew of the carriage in the guides, which requires increased application of force when the cover moves;

- taking into account that the carriage rollers move in guides in a space limited on three sides, in winter conditions this leads to additional labor costs and time for cleaning the carriage movement zones from precipitation;

- the presence of torsion springs in the mechanism for opening the lid may lead to an undesirable opening of the lid during the movement of the carriage as part of the train in the event of unforeseen breakage of the locks holding the lid in the closed position.

The technical task of the utility model is to simplify the design of the shutter of the tank hatch, reduce material consumption and reduce labor costs in the manufacture and operation, as well as facilitate maintenance.

The technical result is achieved by the fact that the shutter of the tank hatch, comprising a lid equipped with rollers fixed to it, interacting with the guides, a locking device, an opening mechanism, rockers mounted on two sides of the lid, each of which is movably connected to the boiler at one end and the other with a lid, and the rocker arm with the lid closest to the lower front corner of the lid, and the rocker arm with the boiler is farther from the middle of the hatch towards the lid opening.

Comparison with the analogue and prototype establishes the presence of distinctive features, therefore, the utility model meets the criterion of "novelty."

The essence of the utility model is illustrated by drawings, where:

in FIG. 1 shows a general view of the shutter, side view;

in FIG. 2 - general view of the shutter, top view;

in FIG. 3 - the cover in the maximally raised position (discharge and loading devices installed in the hatch are conventionally not shown);

in FIG. 4 - section GG;

in FIG. 5 is a kinematic diagram of the mechanism.

The hatch shutter includes a cover 1 with brackets 2, in which rollers 3 are mounted, interacting with guides 4 installed on the boiler 5, a locking device 6, a support 7. On both sides of the cover, rocker arms 8 are installed, which are connected to boiler 5 at one end “A” and the second end "B" - with a cover 1. For ease of opening, the cover is equipped with handles 9 located on its two sides. The rollers 3 are made in the form of a wheel with a cavity interacting with the guide 4. To prevent the rollers from sliding off the guides, a safety bracket 10 is mounted on the cheek 11 of the bracket 2.

Opening the hatch is as follows. When applying the operator’s efforts to the handle 9, the lid 1 rises above the hatch 12, the rocker arms 8 rotate in hinges “A” and “B”, and the rollers 3 move along the guides 4. When the rocker arm 8 approaches the vertical position, the applied opening force of the lid 1 decreases , and after the transition of the rocker of vertical position, the lid opens under the action of its own gravity. In the open position, in addition to the rollers, the cover rests on the provided bracket 7 located between the rails.

Closing the lid is performed in the same order, with the only difference being that the lid moves in the opposite direction.

The magnitude of the lift of the lid depends on the elevation of the discharge and loading devices above the plane of the hatch-lid connector and is realized by choosing the rocker arm length and the coordinates of the connection with the boiler and the lid.

The mechanism for opening the lid is slide-sliding, in which the role of the slider is performed by the rollers, and the connecting link “B” - “C” between the beam 8 (link “A” - “B”) and the slider 3 (roller) is cover 1. The presence of such a mechanism opening the lid eliminates the need for a special limiter of the extreme positions of movement of the lid when opening or closing since this role is performed by the rocker arms.

For the manufacture of the proposed shutter hatch does not require the development of new special technologies and the purchase of unique equipment.

Currently, the proposed utility model is used in the design documentation of the tank car for molten sulfur mod. 15-9544, which is planned for production at RailTransHolding LLC.

Claims (3)

1. The shutter of the tank hatch, comprising a lid equipped with rollers fixed to it, interacting with guides, a locking device, an opening mechanism, characterized in that rocker arms are installed on two sides of the lid, each of which is movably connected to the boiler at one end and the other at the lid. 2. The shutter of the tank hatch according to claim 1, characterized in that the connection of the rocker arm with the cover is as close as possible to the lower front corner of the cover. 3. The shutter of the tank hatch according to claim 1, characterized in that the rocker arm is connected to the boiler further from the middle of the hatch towards the opening of the lid.

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