DE7043804U - ELECTRICAL DEVICE FOR MONITORING A CURRENT IN A LINE - Google Patents

Description

HohwtCtataiB 1970

Pa. Dr, ^ iebert & Kilhn
Registration application dated November 25, 1970

Fa * Lr, Siebert & Kühn 3504 Oberkaufungen / Kassel

Electrical device for monitoring a flow in a line

The utility model relates to an electrical device for monitoring a flow in a line with a housing that can be placed on the line and a through. a line opening protruding into the flow and pivotably arranged on the housing against a spring force.

Such devices are used to monitor a flow in a line in such a way that when it is exceeded an electrical contact or the like at a certain flow rate. is triggered. In particular, such Devices equipped with a so-called reed contact, the shift lever carrying a magnet that controls the Reed contact takes along according to the position of the switching lever and triggers the switching process. With the known Devices of the type specified above is the shift lever via bearing pins in corresponding bearings of the Geliäueee stored un 'also with a separate return spring

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82.118470

: Hanover W716

equipped, which returns the shift lever to its original position. It has been shown that the known Devices are subject to such a disclaimer Shift levers can only be used to a very limited extent for sensitive monitoring tasks. The friction in the described Pivoting is generally too high for sensitive monitoring tasks. But above all, there is this Pivot bearing with a separate return spring, the risk of contamination and calcification of the sensitive Switching system for longer periods of operation, especially when monitoring water pipes.

The utility model is based on the task that to avoid the disadvantages of the known devices and instead to create a device in which the friction that occurs can be reduced as much as possible and also a longer operating time, especially in water pipes, no impairment of the switching properties brings with it. This is achieved according to the utility model in that the shift lever is pivoted from one side yielding and stiff transversely to the pivoting direction, is held on the housing cantilevered spring. Through this it is achieved that a single component, namely the spring clamped on one side, both the storage as also takes over the restitution task. Sensitive bearings via bearing pins and associated bearing openings and their disadvantageous friction are completely avoided. The pivoting arrangement of the shift lever is thus very simple and extremely reliable, even over longer periods of operation.

According to one embodiment of the utility model Spring a leaf spring which is attached at one end to the housing and at the other end to the shift lever. Such a one Leaf spring is a particularly simple component

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which at the same time provides the necessary flexibility in the pivoting direction and rigidity transversely to the pivoting direction brings with it. The fastening of the spring on the housing and on the shift lever is simple and easy to do.

In the drawing, an embodiment of the utility model is shown. Show it:

Pig. 1 is a plan view of the device mounted on a line, viewed in the direction of flow,

FIG. 2 shows a sectional view rotated by 90 ° with respect to FIG. 1 the device built into the line.

The electrical device for monitoring a flow in a line has a line 1 attachable housing 2. As FIG. 2 in particular shows, the device has a so-called reed contact 3 provided that performs the monitoring switching function. In the housing 2 is a pivotable counter to a spring force Shift lever 4 arranged in the form of a balance beam. The pivoting direction runs in or against the flow direction, which in the drawing according to FIG. 2 from right to may be directed to the left. At its upper end, the switching lever 4 carries a magnet 5 »for the non-contact Transmission of the pivoting movement to the reed contact 3 is used. The shift lever protrudes through a line opening 6, in the the lower end of the housing 2 is inserted into the flow and is at the lower end with a baffle or baffle plate 7 provided. The fully extended position represents the rest position, while the working position of the shift lever 4 with the magnet 5 and the baffle plate 7 is indicated in dash-dotted lines in FIG.

According to FIG. 2, the shift lever 4 is held on the housing 2 by a leaf spring 8 which is flexible in the pivoting direction and is stiff transversely to the pivoting direction. This leaf spring

704380AiU. 71

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is, as Fig. 2 shows, clamped on one side. It is at its upper end with an associated housing projection 9 and firmly connected to the shift lever 4 at the lower end. The leaf spring 8 thus takes over both the Storage and reset function for the shift lever 4.

Patent attorneys

Dipl.-Ing. Horst Rose Dipl.-Ing. Peter Koeel

Claims (1)

k k 1 t »ft DiPL.-iNG. HORST ROSE DIPL.-ING. PETER KOSEL PATENT LAWYERS D 3353 Bad Gandereheim 2 5th Nov. 1970 HohanhAfwS Τ οη (05188 2842 Telegnmm-Adrao ·: 8i «dpat * nt Qf xtarahain File number: 1457/34 Pa. Dr. Siebert & Kühn
Registration application dated November 25, 1910 Protection claims 1, Electrical device for monitoring a flow in a line with a housing that can be placed on the line and one through a line opening into the flow projecting switching lever arranged on the housing so as to be pivotable against a spring force, characterized in that the switching lever (4) from a flexible in the pivoting direction and stiff transversely to the pivoting direction, on the housing (2) spring (8) clamped on one side is held « 2. Apparatus according to claim 1, characterized in that the spring is a leaf spring (θ) which is at one end is attached to the housing (2,9) and at the other end to the switching lever (4). Patent attorneys Dipl.-Ing. Horst Röee Üipl.-Ing. Peter Kosel Bf-kkonto: BnufwJnraiglaeh 22.11S.no. PiMtaciwdcfconto: H «inuvcrflB718