RU126085U1 - ROTARY DISK SHUTTER - Google Patents

Abstract

A rotary disk shutter, consisting of a housing in which a disk rotating on the half shafts inside the housing contacts with an elastic sleeve, opens and closes the passage opening, while the disk is rotated by a handle that is rigidly connected by a rotary axis to the disk, characterized in that the shutter is equipped with a crossplat, which is housed in a sealed enclosure, and a bracket mounted on the rod, which, when the rod is rotated, ensures that the proximity sensors are mounted on the flange by means of a holder and two wow screws.

Description

The utility model relates to various industries, more specifically, it is used in heat, water supply, ventilation, air conditioning, fire fighting systems, as well as on main pipelines.

The prior art is known for a rotary butterfly valve under the brand name GRANVEL ^® , used both in heating, water supply, ventilation, air conditioning, and in the chemical, pulp and paper, food and other industries.

The composition of the known shutter, selected as a prototype, includes a housing in which there is an elastic cuff and a disk that rotates inside the housing, in contact with the outer edge of the cuff and, depending on the angle of rotation, opens or closes the passage opening. The rotation of the disk is carried out by the handle, which is rigidly connected by the rotary axis to the disk. On the shutter housing at an angle of 90 ° relative to each other in the plane perpendicular to the rotary axis, two limit switches are fixed. When turning the handle to the extreme positions, one of the switches is pressed, which breaks the electrical circuit passing through them, thereby signaling that the shutter is in the “open” or “closed” position.

The disadvantages of the known shutter include the large overall dimensions of the limit switches, which go beyond the dimensions of the shutter and may be damaged during installation, as well as mechanical wear and low reliability of the limit switches.

The objective of the proposed utility model is to use in the shutter a rotary disk position control device consisting of at least one proximity sensor in an airtight housing, which reduces the dimensions of the product and increases reliability.

The technical result is achieved by creating a rotary disk shutter, consisting of a housing, in which a disk rotating on the half shafts inside the housing contacts a flexible sleeve, opens and closes the passage opening, while the disk is rotated by a handle that is rigidly connected by the rotary axis to the disk, according to the useful models, the shutter is equipped with a cross circuit board, which is placed in a sealed enclosure, and a bracket mounted on the rod, which, when the rod is rotated, provides contactless sensors a fixed flange on the holder by means of two screws.

The rotary disk shutter is connected to external systems via the RS485 interface and the MODBUS-RTU protocol.

The utility model is illustrated by drawings (figure 1, figure 2, figure 3).

Figure 1 shows the housing 1, it has a rod 2, on which the handle 5 and the disk 4 are rigidly attached. In addition, a cuff 3 is placed in the housing, which serves as a sealing element. To fix the handle, a gear plate 6 is used, which is fastened with bolts 8 together with the flange 13 (figure 2) to the housing 1. The stop 7 is installed in the handle 5 and serves to seal the shutter. On the rod 2 is placed the bracket 9 (figure 2) and is fixed by the locking ring 10 (figure 2).

On the flange 13 with the help of screws 15, a holder 14 is mounted on which, for example, two contactless inductive sensors 11 and 12 are fixed (FIG. 2).

A sealed box 16 is fastened to the end face of the flange 13, which has a rectangular base, with screws 18, in which a cross-board 19 and a pressure seal 20 are placed. An elastic gasket 17 is installed between the flange 13 and the sealed box 16.

When the shutter is in the "Closed" position (the disk seals the passage through the shutter), the protrusion of the bracket 9 is opposite the proximity of the inductive sensor 11 at a distance of not more than 2 mm. At the same time, a light indication is lit on the body of the non-contact inductive sensor and the signal is sent to the cross-board 19. When the shutter switches to the “Open” position, the bracket 9, rotating on the rod 2, moves away from the sensor 11 and becomes its protrusion opposite the sensor 12, which sends a signal to the cross-circuit board 19. Thus, the proximity sensors inductive transmit information about the state of the shutter in the extreme positions.

Comparative analysis with the prototype shows that the claimed device has a combination of essential features that ensure the achievement of a useful model of a technical result. The technical result, which is expressed in the use in the shutter of a rotary disk position control device, consisting of at least one non-contact inductive sensor located in a sealed enclosure, which reduces the dimensions of the product and increases reliability.

The above signs of a utility model indicate that the utility model meets the criterion of "novelty."

The industrial release of the proposed shutter will not cause difficulties, because known materials and methods of production used in the manufacture of the prototype can be used for production, which allows us to conclude that the technological solution meets the criterion of "industrial applicability".

Claims (1)

A rotary disk shutter, consisting of a housing, in which a disk rotating on the half shafts inside the housing contacts with an elastic sleeve, opens and closes the passage hole, while the disk is rotated by a handle that is rigidly connected by a rotary axis to the disk, characterized in that the shutter is equipped with a crossplat, which is housed in a sealed enclosure, and a bracket mounted on the rod, which, when the rod is rotated, provides proximity sensors that are mounted on the flange by means of a holder and two wow screws.

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