RU204009U1 - Checkbox for non-contact inductive sensor - Google Patents

Abstract

The utility model relates to technological equipment. The technical result is that the risk of damage to the sensor when solid objects enter or possible displacement of the mounting position of the sensor or flag is reduced. The flag contains a fastening part, a head part, an insert made of porous rubber. If the Flag, during the operation of the equipment, touches the body of the non-contact inductive sensor or foreign objects caught in the gap between the flag and the sensor, then due to the presence of elasticity it will bend and will not have a destructive effect on the sensor. Subsequently, when removed from the place of direct impact on the sensor or impact on it through a foreign object, the flag, due to the elasticity of the insert, will restore its shape and state of operability.

Description

The utility model relates to the field of application of non-contact inductive sensors.

A checkbox for a contactless inductive sensor is known from the state of the art (website of OOO PKF "STRAUS", http://straus-com.ru/, Technical information).

This flag, which has a rigid structure and is made of metal, is a movable intermediate link between the mechanism and the sensor. The disadvantage of the analogue is the risk of damage and failure of the sensor due to the ingress of solid objects into the area of the working gap between the sensor head and the flag, as well as due to an incorrect mounting position of the sensor or the presence of backlash in the equipment.

The closest analogue in essence is the flag presented by "Pepperl + Fuchs" in the video (site https://www.youtube.com/,Pepperl+Fuchs-R1-Sensors(Factory Automation - Inductive Sensors), September 17, 2012 .).

This flag is made in the form of a corner, having a rigid monolithic structure and made in the form of a metal corner, and one part of the corner is intended for attachment to equipment, and the other is intended for magnetic communication with a non-contact inductive sensor. The disadvantage of this technical solution is the risk of damage and failure of the sensor due to the fact that the trajectory of the flag movement may intersect the sensor body installed in the wrong mounting position, or there is a backlash in the equipment, as well as due to the ingress of solid objects into the working gap between the sensor head.

The tasks to be solved by the proposed utility model are to increase the reliability of the equipment, which uses non-contact inductive sensors, to reduce equipment downtime and the cost of purchasing and installing new sensors.

The technical result consists in reducing the risks of damage and failure of the sensor, as well as in maintaining the operability of the flag itself.

The specified technical result is achieved in that the flag, consisting of a fastening part intended for attachment to equipment and a head part designed to provide magnetic communication with a contactless inductive sensor, contains an insert made of porous rubber and installed between the fastening part and the head part.

The essence of the utility model is illustrated by drawings, see Fig. 1.

The flag shown in Fig. 1 contains the fastening part 1, the insert 2, the head part 3 and the fastening elements 4.

For the flag, the fixing part 1 and the head part 3 are made from a steel sheet with a thickness of 0.5 ÷ 1 mm, and the edges of this sheet are bent with a radius R of at least 3 mm.

Insert 2 is made of microporous rubber with the following dimensions (figure 1):

The height H _{in the} inserts is calculated by the ratio:

H _in = 2 × h _hh ,

where h _rh is the width of the head part 3, while the calculated value of the height H _{in the} inserts must be at least 60 mm.

The thickness d _{in the} insert is calculated by the ratio:

d _in = 0.25 × H _in .

The length L _{in the} inserts must correspond to the inequality:

L _in ≥ (23) × H _in

The fastening part 1, at least one insert 2 and the head part are connected to each other by fastening elements 4.

The checkbox with at least one insert is installed on the equipment in such a way that the displacement vector relative to the sensor should be directed perpendicular to the plane of the insert 2 (Fig. 1).

The flag shown in Fig. 1 works as follows. If, during the operation of the equipment, the head part of the flag touches the body of the contactless inductive sensor or foreign objects caught in the gap between the flag and the sensor, then, due to the presence of elasticity, insert 2 will bend and the flag will not have a destructive effect on the sensor. In the future, when removed from the place of direct impact on the sensor or impact on it through a foreign object, the flag, due to the elasticity of the insert, will restore its shape and state of operability.

Claims (1)

A checkbox for a non-contact inductive sensor, including a fastening part for attaching to equipment and a head part made of metal having magnetic properties, characterized in that it contains an insert that is installed between the fastening and the head parts, the insert being made of microporous rubber.

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