RU173057U1 - Well shut-off device - Google Patents

Abstract

The utility model relates to particularly important, from the point of view of safety, objects. It can be used in other industries where wells, manholes and manholes are used, which are closed by covers in order to prevent penetration prohibited therein. The objective of the claimed utility model is to increase the reliability of locking the locking well device. The technical result of the claimed utility model is a highly reliable locking well device (UZK). The locking well device comprises a plate with a key hole, a support sleeve fixed to the bottom side of the plate, through which a screw of the cover locking mechanism passes, a support bracket is rigidly fixed to the bottom side of the plate, through the holes of which the screws of the locking mechanism pass, which, with their ring steps, rest on the support bracket in such a way that they can rotate around their products nyh axes, referred to the same distance from the ultrasonic inspection axis, the upper end of the screw comprises a shaped shank turnkey; on the bottom side of the support bracket, latches are fixed to the screws of the locking mechanism; the levers are connected to the support bracket by means of pivot joints, each lever using a traction swivel connected to one end of the traction of the lever, the other end of the traction of the lever connected to the movable nut by means of a swivel joint of the movable nut, while the movable nuts are located on the screws of the locking mechanism, moreover, in the open state of the ultrasonic testing device, they are located in the lower part of the screws for movement along them during their rotation; on the bottom of the screws of the locking mechanism is installed and rigidly attached to the support bracket or installed with guide holes on the bottom of the screws of the locking mechanism and secured to them using cotter pins, a connecting strip having guide holes for the screws.

Description

The utility model relates to particularly important, from the point of view of safety, objects. It can be used in other areas of industry, where wells, manholes and manholes are used, which are closed by covers in order to exclude the penetration forbidden into them. Lid locking is carried out by using special locking devices in the lid structures. The utility model also relates to the field of construction, in particular to underground structures, such as manholes, manholes, manholes, and other devices that are used primarily for the installation of communications and their inspection. The designs of such covers are associated with devices for fixing them in wells.

Well covers of wells are known with devices for their fastening in wells, while devices for fastening covers in wells are lever-screw, formed by pivotally interconnected levers and a screw with a nut screwed on it, allowing the locking levers to move and interact with the walls of the well. (RU 60574 U1, 01/27/2007; RU 2265698 C1, 10/10/2005; RU 49034 U1, 11/10/2005; UA 9466 U, 09/15/2005; US 6,488,440 B1, 12/03/2002; SU 1392209 A1, 04/30/1988; RU 42549 U1, 10/12/2004).

Closest to the claimed utility model is a well cover according to the patent of the Russian Federation for invention No. 2404328 (published on November 20, 2010), which contains a plate with a key hole, a support sleeve fixed to the bottom side of the plate, through which the screw of the cover locking mechanism passes, when this screw rests on the support sleeve with its upper end so that it has the ability to rotate around the longitudinal axis of the support sleeve, while the cover plate is articulated with the locking levers of the locking mechanism, each of which is a ball nirnno connected with the rod, pivotally connected to the screw nut located on the screw with the ability to move along the screw when it rotates, the locking levers, the number of which is selected at least at least two, are located around the circumference around the screw, and the connection of the upper end of the screw with the supporting sleeve is configured to deflect the screw from the geometric axis of the supporting sleeve in any direction from this axis.

A significant drawback of this technical solution is the insufficiently reliable locking of the well lid due to the fact that when locking, the locking levers do not always simultaneously contact the wall of the well. Since when locking the lid, when the walls of the well 14 are uneven (not equal) or differently removed from the axis 20 of the surface of the wall of the well (as shown in figure 2 of the prototype), the plate 1 is locked by one lever 8, while the second (and subsequent) lever 8, due to skew, will not have contact with the wall of the well 14. Such an “under-closure" of the levers 8 during operation can allow unauthorized access to the well without using a special key. The described technical solution used in the prototype, in the form of the possibility of deviation of the screw 5 from the geometric axis of the support sleeve, does not solve the problem with the difference in the evenness of the walls of the well 14 of 10-15 cm.

The objective of the claimed utility model is to increase the reliability of locking the locking well device. The technical result of the claimed utility model is a highly reliable shut-off well device (UZK).

In FIG. 1 presents a schematic diagram of ultrasonic testing.

In FIG. 2 is a diagram of a prototype indicating its disadvantages.

In FIG. 3 - scheme of ultrasonic testing with the elimination of the disadvantages of the prototype.

1 - UZK plate

2 - Bushing

3 - Support bracket

4 - Holes of the support bracket

5 - UZK locking mechanism screws

6 - Moving nuts of the locking mechanism

7 - Link rod

8 - UZK lever

9 - Swivel lever

10 - Traction swivel

11 - Swivel joint of the movable nut

12 - Connection strip

13 - The supporting part of the hatch

14 - Well wall

15 - Turnkey Hole

16 - The annular stage of the screw of the locking mechanism of the ultrasonic testing device

17 - Lock

18 - cotter pins

19 - Axes of screws of the locking mechanism

20 - UZK axis

UZK contains a plate 1 with key holes 15 (Fig. 1). On the bottom side of the plate, a support bracket 3 is rigidly fixed, through the holes 4 of which the screws of the locking mechanism of the ultrasonic protection device 5 pass. The upper end of the screw of the locking mechanism of the ultrasonic protection device 5 has a turnkey shank. The shape of the shank can be varied - hex, penta, eccentric, X-shaped, etc. The screws of the locking mechanism 5 with their ring steps 16 are supported on the support bracket 3, so that they can rotate around their longitudinal axes 19. The axes of the screws of the locking mechanism 19 are spaced at equal distances from the axis of the ultrasonic inspection device 20, in order to ensure smooth operation (locking and unlocking) locking mechanism. On the bottom side of the support bracket 3, the latches 17 are fixed to the screws of the locking mechanism 5, which exclude the possibility of movement (when the locking mechanism is used) of the screws 5 along their axes 19. The levers 8 of the locking well device are connected to the supporting bracket 3 by means of articulated joints of the lever 9. Each the UZK lever 8 by means of an articulation of the rod 10 is connected to one end of the rod of the lever 7. In turn, the rod of the lever 7 is connected to the movable nut 6 by the articulation of the movable nut 11. The movable nuts 6 located on the screws of the locking mechanism 5, and move on them during their rotation. The movable nuts 6 in the open state of the ultrasonic inspection device are located at the bottom of the screws 5. The number of levers 8 is determined individually, and depends on the configuration of the walls of the well 14. The number of levers 8 can be 1 or 2 on each of the screws of the locking mechanism 5.

Confirmation of the practical implementation of the utility model.

1. The device is inoperative installed in the hatch with the locking mechanism down.

2. A special key is inserted into the key holes 15 (figure 1) located in the UZK plate 1. To complicate unauthorized access to the screw of the locking mechanism 5 without a special key, restriction bushings 2 are installed on the key holes 15 on the plate 1.

3. During rotation of the inserted special key, the screw of the locking mechanism 5, which is inserted into the hole 4 of the support bracket 3, rotates around its axis 19 with it.

4. When the screw 5 rotates, the movable nut 6 moves up the axis of the screw 19.

When the levers 8 abut against the wall of the well 14, the plate 1 is securely fixed on the supporting part of the hatch body of the well 13, which excludes its movement in the upper direction. If access to the well is necessary, the special key rotates in the opposite direction, which leads to the removal of levers 8 from the walls of the well 14. After that, the plate 1 together with the locking mechanism is removed from the well 14. It is due to the presence of two screws 5 (Fig. 3) in the locking the UZK mechanism, each of which independently actuates its pivotally connected levers 8, the quality and reliability of locking the plate 1 to the supporting part of the hatch body 13 is guaranteed regardless of the evenness and equality of the walls of the well 14, as well as outside depending on the difference between the distance from the axis 20 of the well USI walls 14 (as shown in FIG. 3). On the bottom of the screws of the locking mechanism 5, a connecting strip 12 having guide holes for screws 5 is mounted and rigidly attached to the support bracket 3 by means of connectors. In another embodiment, the connecting strip 12 may not be attached to the support bracket 3, but mounted with guide holes on the lower part of the locking mechanism 5 and is fixed to the screws 5 by means of cotter pins 18. The connecting strip 12 serves to prevent the skewing and jamming of the screws 5 when the locking mechanism is operated and thus Prevents deviation screw locking mechanism from their axes.

Claims (1)

A locking well device (UZK), comprising a plate with a key hole, a support bracket fixed rigidly to the bottom side of the plate, through the holes of which the screws of the cover locking mechanism pass, characterized in that the locking mechanism screws are supported by their ring steps on the support bracket so that have the ability to rotate around their longitudinal axes, spaced at equal distances from the axis of the ultrasonic inspection, while the upper end of the screw contains a turnkey shank; on the bottom side of the support bracket, latches are fixed to the screws of the locking mechanism; the levers are connected to the support bracket by means of pivot joints, each lever using a traction swivel connected to one end of the traction of the lever, the other end of the traction of the lever connected to the movable nut by means of a swivel joint of the movable nut, while the movable nuts are located on the screws of the locking mechanism, moreover, in the open state of the ultrasonic testing device, they are located in the lower part of the screws for movement along them during their rotation; a connecting strip having guide holes for the screws is mounted on the bottom of the locking mechanism and is rigidly attached to the support bracket.

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