RU207914U1 - Assembly for fastening the cover to the well body - Google Patents

Abstract

The utility model relates to devices designed to secure the cover to the body of the well, and can be used, for example, in the oil industry in the construction of wells for monitoring the operation of pipelines. The assembly for attaching the cover to the body of the well contains a hinge consisting of two hinges welded to the cover and a shaft mounted on the body of the well by means of two brackets welded to the neck of the body of the well. One of the brackets contains an axle, a hook stop and a hook mounted on the bracket by means of an axle with the possibility of rotation. The hook engages the lift pedal. Each of the hinges contains a thrust bearing, and the thrust bearing of the hinge located on the hook side contains a retainer. The technical result is expressed in increasing the ease of use of the unit for attaching the cover to the body of the well. 4 ill.

Description

The utility model relates to devices designed to secure the cover to the body of the well, and can be used, for example, in the oil industry in the construction of wells for monitoring the operation of pipelines.

Known assembly for attaching the cover to the body of the well, which is part of the well to provide observation and access to the pipeline equipment [RF patent for utility model No. 140074, IPC F17D 5/00, Appl. 01/10/2013, publ. 04/27/2014], taken as a prototype. This assembly for attaching the cover to the well body is made in the form of a hinge and two hinges. The hinge consists of a hinge shaft with grooves and two hinges welded to the body of the well cover. The hinge shaft is made of high strength steel, which ensures long hinge durability. The groove of the joint shaft is provided for the possibility of free lubrication of the joint. At the location of the attachment point on the outer sides of the body and the well cover, a stop in the form of brackets is welded with the possibility of installing a stud to block the well cover. The stop allows you to prevent an uncontrolled fall of the well cover onto the supply and exhaust ventilation pipe. At the same time, by installing the stud in the holes of the stop and then fixing it with nuts, the well cover is blocked from unintentional closure, for example, by a gust of wind.

The disadvantages of the prototype are:

1. The difficulty of fixing the cover in the open position to prevent it from falling under the influence of a gust of wind, because To do this, it is necessary to accurately position the fixing pin to install it in the holes of the stop and fix this pin with nuts. This operation will require at least two people (one should hold the cover to prevent it from falling, and the other should install and secure the pin with both hands). As a result, the ease of use is reduced, and labor intensity is also increased due to the involvement of two people, or the safety of operation is reduced when an attempt is made to install the stud without holding the cover by a second person.

2. Welding of the hinge shaft of the attachment unit to the upper flat part of the well body, and not to the neck, which makes it impossible to use this design on wells installed at large depths of pipelines equipped with a high neck, due to the large height difference between the upper flat part of the well body and a cover covering the neck of the well body. As a result, the applicability of this attachment unit is limited only to wells with a low neck of the body.

A technical problem is the creation of a unit for attaching the cover to the body of the well, which has a high degree of ease of use and provides the ability to install on wells both with a low neck of the body and with a high one.

The technical result is expressed in increasing the ease of use of the unit for attaching the cover to the body of the well.

The specified technical result is achieved by the fact that the assembly for attaching the cover to the body of the well contains a hinge consisting of a shaft mounted on the body of the well and two hinges welded to the cover, and the shaft is mounted on the body of the well by means of two brackets welded to the neck of the body of the well, while one of the brackets contains an axle, a hook stop and a hook, mounted on the bracket by means of an axle with the possibility of rotation, including a lifting pedal, in addition, each of the hinges contains a thrust bearing, and the thrust bearing of the hinge located on the hook side contains a retainer.

The claimed utility model is illustrated in FIG. 1-4. FIG. 1 shows the assembly for fastening the cover to the well body, installed on the well, in the "cover closed" position; in fig. 2 - two brackets of the attachment unit, welded to the neck of the well body; in fig. 3 - attachment unit, installed on the well, in the “cover open” position; in fig. 4 - attachment unit installed on the well, in the “cover open” position, view A.

The unit for attaching the cover to the body of the well contains a hinge consisting of a shaft 1 (Fig. 1, 3, 4) mounted on the body 2 of the well (Fig. 1, 3) by means of two brackets 5 welded to the neck 6 (Fig. 1, 2 , 3) the body of the well. Shaft 1, made in the form of a metal axis, is installed at each of its ends in a hole (not shown) of the corresponding bracket 5 and is fixed against axial movement, for example, by means of a keyed connection or other detachable connection. Also, the hinge of the attachment unit contains two hinges 3 (Fig. 1, 3) welded to the cover 4. In each of the hinges 3 there is a hole (not shown) for connection with the shaft 1. In addition, each of the hinges 3 contains a thrust bearing 11 (Fig. . 1, 4), limiting the opening angle of the cover 4 by contact with the corresponding bracket 5. One of the brackets 5 contains the axis 9 (Fig. 4), the stop 7 of the hook and the hook 8, mounted on the bracket by means of the axis 9 with the possibility of rotation about this axis ... The foot 11 of the loop 3 located on the side of the hook 8 contains a retainer 12 (Fig. 4). The hook 8 is a metal plate of rectangular or other shape with a protrusion at one end made with the possibility of engaging with the latch 12. The latch 12 is made, for example, in the form of a metal rectangle welded to the thrust bearing 11 with a lead-in chamfer on the edge of the side interacting with the hook 8 in the process of opening the cover 4. The axis 9 is made, for example, in the form of a metal axis welded to the bracket 5. The axis 9 is displaced to the end of the hook 8, interacting with the stop 7, to ensure the displacement of the center of mass of the hook 8 towards the protrusion interacting with the latch 12. The hook 8 is fixed on the axis 9 by means of a detachable connection, for example, a key. The stop 7 of the hook is, for example, a piece of metal angle welded to the bracket 5 in order to limit the angle of rotation of the hook 8 about the axis 9. The hook 8 contains a lifting pedal 10 (Fig. 4), made, for example, in the form of a metal bar welded to the hook. The dimensions of the metal bar of the lifting pedal 10 are selected taking into account the provision of comfortable pressing by the human foot.

The assembly for attaching the cover to the well body works as follows.

In the closed position of the cover 4 (Fig. 1), the specialist who maintains the well to monitor the operation of the pipeline unlocks the locking device (not shown) and dismantles other fixing elements (not shown) that block the opening of the cover 4. Then the specialist starts to lift (open) the cover 4 from the neck 6 of the well body. The cover 4, on two hinges 3, is opened by rotating the hinges 3 relative to the shaft 1. When the maximum opening angle of the cover 4 (Fig. 3), provided for by the design of the attachment point, is reached, the latch 12 (Fig. 4) of the thrust bearing 11 interacts with the hook 8, lifts the hook 8, which rotates about the axis 9. After the latch 12 passes the protrusion located at the end of the hook 8, the hook 8, under the action of gravity, lowers its end with the protrusion, turning on the axis 9 until the second end of the hook 8 abuts against the stop 7. In this case, each of the hinges 3 with its thrust bearing 11 abuts against the corresponding bracket 5, limiting the further opening of the cover 4. Thus, the cover 4 is automatically locked in the open position, i.e. the cover 4 can neither open to a greater angle, nor close, for example, under the influence of a gust of wind.

To close the cover 4, a specialist servicing the well to monitor the operation of the pipeline holds the cover with both hands, and with his foot presses the lifting pedal 10, ensuring that the hook 8 disengages from the lock 12, and lowers (closes) the cover onto the neck 6 of the well body.

Thus, it is possible to open the lid with the help of one specialist, blocking it from spontaneous closing, and also to close it, having previously unlocked it with a foot, without the need for mounting / dismounting of locking devices (pins, etc.).

As a result of the above, it is possible to increase the ease of use of the unit for attaching the cover to the body of the well.

Claims (1)

The assembly for attaching the cover to the body of the well, containing a hinge consisting of a shaft mounted on the body of the well and two hinges welded to the cover, characterized in that the shaft is mounted on the body of the well by means of two brackets welded to the neck of the body of the well, with one of the brackets contains an axle, a hook stop and a hook, mounted on the bracket by means of the axle with the possibility of rotation, including a lifting pedal, in addition, each of the hinges contains a thrust bearing, and the thrust bearing of the hinge located on the hook side contains a retainer.

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