DE1877295U - CAPSULE SPRING WITH OVERLOAD SAFETY. - Google Patents

Description

* ■ RA. 273 725 * 25. V

Applicant:, Stuttgart, 16 · 4.

Mr. Georg Fritz Ga 306 K / Zi

/ Württ.

Strombergstrasse 20

? Ä.pselfspring with overload increase

The invention relates to a capsule spring with a safeguard against too high pressure or low pressure load, which consists in that in the middle of one Eapselederhälft © a stutute is attached, in which a valve claw attached to the "other capsule spring half is

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runs, the seller of which carries a valve half (valve seat or valve assembly) that works together with the other valve half arranged on the nozzle, since with increasing load the two surfaces of the capsule spring halves move relative to each other ^:

Because of this, the valve stem also moves relative to the connecting piece. As a result, however, the valve disk, which carries one valve half, approaches the other valve half arranged on the connecting piece, so that this valve, the inside Öer Eapselfeder from the Mei31eitung concludes who a certain load has been reached to attach a valve half ends of the stroke, which the shaft relative su performs the clip, with the then cooperating means disposed on the valve disk valve half, so that such a capsule element is secured both against high pressures as well as against excessive negative pressures "

The load cells are generally from a proportionate ι * made of thin spring plate. Since the valve stem is in the Hegel free and without guidance through the inner diameter

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The nozzle lifter is guided, because the inside of the peel spring is connected to the 4-way measuring line through this opening, "there is no guarantee that the shaft will always run exactly in the axis of the nozzle over a long period of time and not leant et «but if this Cchaft to the nozzle axis through these stem runs at a slight angle through, so 'that attached to the valve poppet half did not exactly work more with the attached to the neck yen · * tilhälfte _susa3Bmsn? Sun · that the valve is leaking and if the capsule spring is overloaded, the valve no longer closes tightly "but then the valve can no longer serve as a safeguard against overloading"

According to the invention, this disadvantage is eliminated by the fact ^{that the valve head is movably attached to 1} deia Söhaft in such a way that the valve disk automatically moves when it is placed on the valve half attached to the valve

can adjust to its exact position, so even then, . - ■ -. ■ "■ '■■

if the valve stem runs somewhat obliquely to the nozzle axis »the entire © edge of the valve is pressed with the same pressure on the valve half located in the nozzle». Λ. . .- ■■ "■■ · ■" "■ ·".-.-- ■ ■ - ..

The particular advantage of finding lies in the fact that a ti ^ e Si: £ :: ·.,;: ; -V ^ oh. uami »>> ■ ^: r4.ut - is tight and therefore

in the event of an overload, the interior of the capsule fever tightly against the measuring line closes »when the valve stem does not run exactly in the nozzle axis. There are » Special precautions are also unnecessary, the aim of which is that the valve stem is rigid in the axis of the Nozzle, for example, it is then not necessary to reinforce the middle area of the capsule spring half carrying the valve stem or in the Nozzle to attach special guides for the valve stem ο Both measures would reduce the measurement accuracy.

In one embodiment of the invention, the valve disk can be arranged on the adherent via a ball joint. However, an embodiment of the invention is simpler in which the valve disk is supported by a ring made of elastic material on a shoulder at the end of the shaft ; / The substance yields to the extent that it can adjust the valve disc to its exact position.

The invention can be used both with fuses that protect the capsule spring against overpressure and with fuses "that protect the capsule spring against underpressure"

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In particular, the invention can be used with capsule spring locks in which the fuse is designed so that it closes the interior of the capsule eleven edex from the measuring line when the pressure is too high or too low Yentiltellere already known on the shaft * The valve disk can either carry the valve seat or the seal «It can also if a valve is closed at both ends when there is overpressure or underpressure _? Carry a valve seat on one side and a valve seal on the other

If the valve plate hits the valve seat, this valve can

The valve seat consists of a sleeve whose ends carry the valve seats * A spring washer is then used in this sleeve an input made of "elastic material, for example (Jumtai, rubber or an elastic plastic attached, over 'which the sleeve on one end face of the valve disk - trimmed *

Further features of the invention will become apparent from the following description of a Äusführungsform of the invention in conjunction with the claims and the drawings "The individual Mo: ^'1 Tn ^ Ie Icönneji for each check or in combination in ·

is * η »

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be realized an embodiment of the invention,

In the drawing is one embodiment of the invention shown in section »

: In the embodiment shown in the drawing Aufflfährungsform the invention, the Kaps ordered eleven Eder aug two halves 1 and 2, the air-tight at the edge are closed together · In the Mitta the Sapself ^ dersihälfte t is DraE "a - arranged geretück 3, in which! a valve stem 4 is screwed in and secured by a counter nut 5. In the capsule spring half 2 a connector 6 is attached,

which has a central bore 7, dersn inner diameter * y - . ... -

diameter is larger than the iiussdurchmeseer of the valve stem 4. The hole 7 widens to a space 8 inside that of the. chaf t 4 an annular bead 9 carries «the 3bnde dee valve stem'f? %. r / e is a decrease of 12, which is in

a bore 1i of a üüschlussstticlces 10 of the measuring line protrudes.

A sleeve 15 forming the valve disk carries on its edges valve seats 14 and 15 with sealing rings 16 in the face of the recess 8 of the connector 6 or a sealing ring 17 on the face of the connection

! ίΐ Wed

- Piece 10 work together · In the sleeve 13 are with

ι ■ - ■ ■ ■. ■ ·

With the help of spring washers 18 and 19 Hinge 20 and 21 off elastic wezkat fastened off * those on the end faces

*. ■ _ ■ ■ - ■ ■ - "

the bead 9 touches the sapsei spring as a result too high a pressure, too strong »so the ven

- tilsitz 14 on the seal 16 and thus seals the ***. There is a gap between the inside diameter of the bore 6 and the outside diameter of the shaft 4, through which the inside of the capsule spring is connected to the measuring line 15 on the seal 17 and ministered to the bore 11, so that also the interior äev capsule element is sealed from the measuring line "Die the _yen: tilt © Her forming sleeve 13 kaim its location relative to the shank 4 or · the SehttlterwuXstes 9 when Positioning on a sealing ring 16 or 17, since this valve plate is supported on the shoulder bead 9 via the elastic hinge 20 or 21.

Self- ^{understanding} , the invention can also be implemented in fuses that only respond to either excessively high pressure or negative pressure that is too high.

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ψ; ■ -. ■ "- ■ .-- ■■ - .. as the valve seat 15 and the sealing ring 16 as well

[■ the Hing 21 made of elastic material and the sleeve are missing f * 13 to be completed by a base plate * in the other Ealle can be the bending arm 16, the valve seat .14 and the ling 20 are missing

The hinge 20, 21 Äuß elastic V / erkstoff may be made of rubber, rubber or a © la 'een plastic admit "

Claims (4)

9.- Protection claims 1) Kapselfeäer with a safeguard against too high "pressure and / or negative pressure load" which consists in the fact that in the tube of one capsule half a connector is attached i-1; _r in which a valve stem attached to the other capsule half runs "whose head a ' ■. ■■ The valve half (valve seat or sighting) carries »which works together with the other valve half arranged on the nozzle, characterized in that the valve disk (13) is movably attached to the shaft (4)» "That the valve disc (13) carrying Sehaftende (4) 2) Capsule according to claim 1, characterized in that a shoulder (9)" on which the valve head 05) ^ra> supported via a hing (20) of elastic material / 3) Kapseifec-:. ⁵ according to claim 1 or 2, in which the! Feller is double-sided and cooperates with a valve half at both stroke ends »characterized in that a shoulder bead (9) is attached to the shaft end carrying a valve disk» the diameter of which is greater than the shaft diameter , and that the valve plate (13) in one stroke direction over - 10 "- an elastic Hing (20) on one end face of the Annular bead (9) and in the other stroke direction over a second elastic Hing (21) is supported on the other end face of the Bingwulst. 4) capsule spring according to claim 2 * characterized by Y that the valve disk is formed by a sleeve (13) which has a valve seat at at least one end has, and that the Hing (20, 21) made of elastic material by an Eecterring (18) in the sleeve (13) is held