RU91126U1 - ALARM POSITION SIGNAL - Google Patents

Abstract

The locking position indicator comprising a housing, an electric sensor and a return spring, characterized in that it further comprises a clamp and a cover, a return spring is installed between the housing and the cover, the cover has vertical freedom of movement, the electrical sensor is rigidly mounted on the housing, the clamp is mounted on a spindle a locking body, a hole is made in the lower part of the housing.

Description

The utility model relates to the field of engineering and can be used in plumbing and other systems to display information about the opening of the locking device, in particular, in the valves of the internal fire water supply.

A known sensor of the end positions of the movable shut-off body of pipe fittings (utility model patent No. 21819 Mcl F16K 37/00) comprising a housing and an electric sensor (spring-loaded contacts) and a spring.

The end position switch is also known (utility model patent No. 54132 µl F16K 37/00) comprising a housing and an electric sensor (reed switches and control magnets) and a spring.

The closest analogue of the claimed utility model is a switch position indicator (application No. 95114682 μl F16K 37/00) comprising a housing, an electric sensor (reed switches and control magnets) and a return spring.

The common disadvantages of these signaling devices of the provisions of the locking body is that they:

1. have too complicated design (have many details);

2. require refinement of the locking element itself and are used with only one type of locking device;

3. Installation of the signaling device of the positions of the locking body is carried out in the production process of the locking body itself.

The general technical result of the claimed technical solution is that the proposed detector can be installed on valves already manufactured and installed in the water supply network, and of various sizes and has a simple design.

This technical result is achieved by the fact that

The locking position indicator comprising a housing, an electric sensor and a return spring, characterized in that it further comprises a clamp and a cover, a return spring is installed between the housing and the cover, the cover has vertical freedom of movement, the electrical sensor is rigidly fixed to the housing, the clamp is mounted on the spindle of the locking element, a hole is made in the lower part of the housing.

An example of the implementation of the device of the inventive signaling device position of the locking element is shown in figure 1

The position indicator of the locking element, comprising a housing 1, an electric sensor 2 and a return spring 3, characterized in that it further comprises a clamp 4 and a cover 5, a return spring 3 is installed between the housing 1 and the cover 5, the cover has vertical freedom of movement, the electric sensor 2 , is rigidly fixed to the housing 1, the clamp 4 is mounted on the spindle 7 of the locking member, an opening is made in the lower part of the housing 1. Figure 1 also shows the elements of the locking element, in this case, the valve, namely the flywheel 6 and the spindle 7, as well as the insert 8, necessary for installing the signaling device, if the hole size in the lower part of the housing 1 does not match the size of the housing nut (in the figure not shown). Positions 9, 10 and 11 in figure 1 reflect the bolt, nut and washer, with which the clamp 4 is attached to the spindle 7.

The operation of the alarm is as follows.

The above example describes an alarm that is installed on a fire valve. Such valves are installed in multi-storey buildings on each landing. This signaling device is necessary so that when the valve is opened, the high pressure pump necessary to ensure the supply of water to extinguish the fire is switched on. Based on these requirements, the position indicator of the locking element should give a signal when the locking device is opened.

To obtain a signal, an electric sensor 2 is used, which is a sensitive element, a signal processing device, and a signal transmission device. The implementation of the electric sensor 2 can be carried out in various ways and depends on what information about the movement of the locking element is necessary. If it is necessary to obtain information about the current movement of the locking element, then, for example, a potentiometer can be used as a sensitive element, for example, an operational amplifier can be used as an information processing device, and the transmission device can be wired or wireless.

In this example, a micro switch is used as a sensitive element of the electric sensor 2, and a circuit of two resistors and a wired information transmission system are used as a conversion device. All elements of the electric sensor 2 are mounted on a printed circuit board.

To ensure the operation of the detector, it must be installed on the valve and adjusted.

To install the indicator of the position of the locking element, it is necessary to remove the valve flywheel 6 from the valve on which the indicator is installed. Then, through the spindle 7 on the upper part of the valve is put on the indicator assembly. Next, the clamp 4 is put on the spindle and fixed at such a height that when the shut-off element, in this case, the shut-off valve is fully open, the microswitch of sensor 2 is activated. When the flywheel 6 of the shut-off element rotates to close, the clamp 4 moves down together with spindle 7. While moving the cover 5 relative to the housing 1, on which the sensor 2 is fixed. When moving the valve spindle 7, and accordingly the cover 6 by the amount at which the shut-off element closes the valve opening, Sensor 2 switch is activated and gives a signal to turn off the pump. The spring 3 serves to move the cover 6 up when opening the valve. In this way, a technical result is achieved - the installation of signaling devices on the locking elements (valves) already installed in the fire networks.

In the lower part of the housing 1 a hole is made in a hexagonal shape. This hole serves to fix the alarm on the locking body (valve), on the union nut (not shown in Fig. 1) with a slight tightness. Moreover, the size of the hole is selected so that you can install the signaling device of the largest size. If the size of the union nut is smaller than the size of the internal hexagon, the case or the surface of the upper part of the locking element (valve) has a different shape, insert 8 is used to fasten the indicator. Thus, a technical result is achieved - installation of the indicator on valves of different sizes.

The proposed signaling device has a minimum number of parts of a simple form in comparison with analogues, this simplifies the design.

Claims (1)

A locking position indicator comprising a housing, an electric sensor and a return spring, characterized in that it further comprises a clamp and a cover, a return spring is installed between the housing and the cover, the cover has vertical freedom of movement, the electrical sensor is rigidly mounted on the housing, the clamp is mounted on a spindle a locking body, a hole is made in the lower part of the housing.