CN1315625A

CN1315625A - Multi-purpose fluid cut-off device

Info

Publication number: CN1315625A
Application number: CN 00105538
Authority: CN
Inventors: 翁锡光
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-03-30
Filing date: 2000-03-30
Publication date: 2001-10-03

Abstract

A multi-purpose fluid cut-off device has a main body with a cavity, an inlet and an outlet, a control port on the main body and communicated with the cavity, and a cut-off part movablly arranged in the cavity and with a resisting part matched with the said control port. When the cut-off part moves, its resisting part blocks the said control port to cut off the flow of fluid.

Description

Multi-purpose fluid cut-off device

The present invention is relevant with safety switch, more detailed is meant a kind of multi-purpose fluid cut-off device.

Press, in the Modern Family, water power, gas equipment are all very complete, make people's life staying idle at home convenient in the extreme, and only, on the contrary, the possibility that disaster takes place but promotes many virtually.Be with, with regard to gas equipment, safety does not have anxiety when guaranteeing to use, super sensing flux device all can be installed additional in most families on gas pipeline, so that avoid taking place the facts that gas leaks.The principle of known super sensing flux device utilization is all substantially: when gas pipe breaks, promote the passage of a ball sealing fluid by the pressure difference that is produced between the gas entry and exit.

Though installing these super sensing flux devices additional can cut off gas channel when gas pipe breaks automatically, avoid gas to leak, only, but it is the unusual super flow status of sensing gas runner only, when gas pipe one end catches fire or ambient temperature when raising unusually, it also can't sensing and start, and therefore, its purposes is obviously very imperfect.

Main purpose of the present invention is promptly providing a kind of multi-purpose fluid cut-off device, and it has leakproof and explosion-proof double effects, that is when stream was in the state of super flow, it can close closed channel automatically, so that possess the effect of leakproof; When the temperature anomaly of context raise, it also can close closed channel automatically, so that possess explosion-proof effect.

Edge is, for reaching aforesaid purpose, the present invention provides a kind of multi-purpose fluid cut-off device, include a body, have a room, an inlet and an outlet, be located on this body and and communicate with this room, one control mouth is located at the end that this exports corresponding room, and this inlet and outlet are to flow into and outflow for fluid; Whether one closure member places in this room movably, has with one of this control mouth complementation to resist the position, communicate with outlet in order to control this inlet; By this, when this closure member was not mobile, this inlet was to communicate with outlet, and fluid can flow out from this inlet inflow and by this outlet; When this closure member moves to when making this resistance position stop up the position of this control mouth, can avoid fluid to flow out from this outlet.

Wherein this closure member has the whole body portion, and this resistance position is an end of being located at the corresponding control mouth of this body portion, and a continuing surface is arranged with the end in addition in this body portion, and a shaft-like supporting portion is convexly set on this continuing surface and is connected to this room inwall.

Wherein this closure member also has an abutment end, be to be convexly set in the corresponding end that resists the position of this body portion, and on this abutment end and be provided with an abutting part, be complementally to be connected to this room inwall, then form an annular groove between this abutting part and body portion.

Wherein also be equipped with some holes on this abutting part.

Wherein also including a hot melt part, is to place in this room and be positioned at the abutment end bottom of this closure member, this resistance position and with the control mouth intended distance of being separated by.

Wherein also include the disconnected broken element of a heat, place on the pod set in this room and be positioned at the abutment end bottom of this closure member, this resistance position and with this control mouth intended distance of being separated by.

Should the disconnected broken element of heat be a glass tube wherein.

Wherein this room has one first empty chamber and the one second empty chamber that communicates, the internal diameter of this first empty chamber is the internal diameter greater than this second empty chamber, be used to the two adjoiner and form this control mouth, this inlet is to be opened in body to a side that should the first empty chamber, and this outlet is to be opened in body to a side that should the second empty chamber.

Below, lift the present invention's four preferred embodiments now, and cooperate graphic be described in further detail as after, wherein:

Fig. 1 is the constitutional diagram of a preferred embodiment of the present invention, shows the state that inlet communicates with outlet.

Fig. 2 is the action schematic representation of a preferred embodiment of the present invention, and closure member is with the state of control mouth sealing when showing super flow.

Fig. 3 is the constitutional diagram of another preferred embodiment of the present invention, shows the state that the normal temperature lower inlet communicates with outlet.

Fig. 4 is the action schematic representation of another preferred embodiment of the present invention, and display environment temperature anomaly raises and makes the hot melt part fusing, and then makes the state of closure member with the sealing of control mouth.

Fig. 5 is the present invention's constitutional diagram of a preferred embodiment again, shows the state that the normal temperature lower inlet communicates with outlet.

Fig. 6 is the present invention's action schematic representation of a preferred embodiment again, and display environment temperature anomaly raises and makes the disconnected broken element fragmentation of heat, and then makes the state of closure member with the sealing of control mouth.

At first, see also shown in Figure 1ly, the fluid cut-off device 10 of a preferred embodiment of the present invention is made of a body 12 and a closure member 14.

This body 12, has a room 22, this room 22 is that it has and communicates and one first empty chamber 24 and one second empty chamber 26 that internal diameter is different, and the internal diameter of this first empty chamber 24 is the internal diameters greater than this second empty chamber 26, and the adjoiner that is used to this first empty chamber 24 and the second empty chamber 26 forms the control mouth 28 of an oblique cone shape, one inlet 30, be opened in this body 12 front ends, an outlet 32 is opened in these body 12 sides and is communicated with this second empty chamber 26, one inlet attack 34, spiral shell are located at this inlet 30; Again, these body 12 rear ends also can suitably dwindle its external diameter.

This closure member 14 is to have the whole body portion 36, one oblique cone shapes to resist position 38, is located at this body portion 36 tops, and a concave arc shape continuing surface 40 is located at this body portion 36 bottoms, and a shaft-like supporting portion 42 is convexly set in these continuing surface 40 bottoms and is connected to this inlet attack 34 inwalls.

By this, this fluid cut-off device 10 can be assemblied in (not shown) on the gas delivery pipe of a gas equipment.As shown in Figure 1, when the gas flow of this gas equipment output was in normal range (NR), this closure member 14 was to be connected to this inlet attack 34 inwalls with supporting portion 42, and at this moment, gas is to flow into from this inlet 30, certainly should outlet 32 outflows via this room 22; When the gas flow moment that flows into this inlet 30 increases (super flow status) suddenly, design by the concave arc shape continuing surface 40 of this closure member 14, gas can boost this closure member 14 up, make this this control mouth 28 of resistance position 38 butts, and with these control mouth 28 sealings (as shown in Figure 2), thus, gas promptly can not flow out this fluid cut-off device 10, to produce the effect of leakproof.

As shown in Figures 3 and 4, it is the fluid cut-off device 50 of another preferred embodiment of the present invention, its structure is identical with this fluid cut-off device 10 substantially, continue to use the components identical symbol herein, do not exist together is to be that when it uses be inverted, and this closure member 14 has more an abutment end 52, this abutment end 52 is body portion 36 bottoms that are convexly set in this closure member 14, has a shaft-like base portion 54, be located at a plate-like abutting part 56 of these base portion 54 bottoms and be located at a pointed projection 58 of these abutting part 56 bottoms, these abutting part 56 all sides generally are wavy, on it and be equipped with several holes 60, one hot melt part 62, plug in these pointed projection 58 bottoms, at this moment, the resistance position 38 of this closure member 14 is and the control mouth 28 suitable distance of being separated by.Base this, when the temperature anomaly arround this fluid cut-off device 50 raises and when surpassing the fusing point of this hot melt part 62, as shown in Figure 5, this hot melt part 62 promptly can melt, and this closure member 14 promptly can fall 28 sealings of this control mouth, avoids the accident of blasting.

In other words, when desiring to make fluid cut-off device of the present invention produce explosion-proof effect, only need install this hot melt part 62 additional and can reach explosion-proof purpose, and this inlet attack 34 of dismounting is very easily.

Please consult shown in Figure 6 again, it is the present invention's fluid cut-off device 70 of a preferred embodiment again, it is that the hot melt part 62 of this fluid cut-off device 50 is replaced by a known disconnected broken element 72 of heat, the disconnected broken element 72 of this heat is the broken glass tubes that can be heated, place on the pod 74 set in this body 12, and the pointed projection 58 of this closure member 14 is to be connected on the disconnected broken element 72 of this heat, it is identical with this fluid cut-off device 50 that it makes flowing mode, when arround temperature anomaly raise and when surpassing the break-up point of the disconnected broken element 72 of this heat, this closure member 14 promptly can fall with 28 sealings of this control mouth, as shown in Figure 7.

To sum up institute is old, a kind of multi-purpose fluid cut-off device provided by the present invention, it is not only when super flow status takes place in the gas stream, but closed gas stream, and it can change member simply, when raising unusually with convenient ambient temperature, also closed gas stream is automatically guaranteed the safety in utilization of gas equipment; Edge is that the present invention meets the regulation of patent of invention really, hence files an application in accordance with the law.

Claims

1. a multi-purpose fluid cut-off device is characterized in that, includes:

One body has a room, and an inlet and exports, and is located on this body and with this room to communicate, and this room is interior and be provided with a control mouth, and this inlet and outlet are for the fluid inflow and flow out;

Whether one closure member places in this room movably, has the resistance position that can seal this control mouth, communicate with outlet in order to control this inlet;

By this, when this closure member was not mobile, this inlet was to communicate with outlet, and fluid can flow out from this inlet inflow and by this outlet; When this closure member moves to when making this resistance position stop up the position of this control mouth, can avoid fluid to flow out from this outlet.

2. fluid cut-off device according to claim 1, it is characterized in that, wherein this closure member has the whole body portion, this resistance position is an end of being located at the corresponding control mouth of this body portion, one continuing surface, be arranged with the end in addition in this body portion, a shaft-like supporting portion is convexly set on this continuing surface and is connected to this room inwall.

3. fluid cut-off device according to claim 2, it is characterized in that, wherein this closure member also has an abutment end, be to be convexly set in the corresponding end that resists the position of this body portion, on this abutment end and be provided with an abutting part, be complementally to be connected to this room inwall, then form an annular groove between this abutting part and body portion.

4. fluid cut-off device according to claim 3 is characterized in that, wherein also is equipped with some holes on this abutting part.

5. fluid cut-off device according to claim 3 is characterized in that, wherein also includes a hot melt part, be to place in this room and be positioned at the abutment end bottom of this closure member, this resistance position and with the control mouth intended distance of being separated by.

6. fluid cut-off device according to claim 3, it is characterized in that, wherein also include the disconnected broken element of a heat, place on the pod set in this room and be positioned at the abutment end bottom of this closure member, this resistance position and with this control mouth intended distance of being separated by.

7. fluid cut-off device according to claim 5 is characterized in that, should the disconnected broken element of heat be a glass tube wherein.

8. according to claim 2,3,5 or 6 described fluid cut-off devices, it is characterized in that, wherein this room has one first empty chamber and the one second empty chamber that communicates, the internal diameter of this first empty chamber is the internal diameter greater than this second empty chamber, be used to the two adjoiner and form this control mouth, this inlet is to be opened in body to a side that should the first empty chamber, and this outlet is to be opened in body to a side that should the second empty chamber.