CN1752360B

CN1752360B - Small water attack preventor

Info

Publication number: CN1752360B
Application number: CN 200410078057
Authority: CN
Inventors: 室井旻; 种子田振作
Original assignee: Tozen Corp
Current assignee: Tozen Corp
Priority date: 2004-09-20
Filing date: 2004-09-20
Publication date: 2010-09-29
Anticipated expiration: 2024-09-20
Also published as: CN1752360A

Abstract

The present invention relates to water, impact preventer. It is characterized by that it has the following components: one pair of pipe adaptors which are oppositely arranged and spaced according to a certain interval, elastic pipe which can be used for covering the interval between two pipe adaptor and can be expanded by utilizing water hammer formed in the flow path of pipeline and external cylinder which has the diameter greater than that of elastic pipe, and can make the elastic pipe be expanded and can be used for covering its external side. Besides, said invention also provides its application method and its function.

Description

Small water attack preventor

Technical field

The present invention relates to small water attack preventor, it is set at for example on the water supply pipe of collective residence etc., can prevent owing to being arranged on the water hammer (water hammer) that valve is caused by quick opening and closing on this pipeline, thereby restrain the generation of water attack sound, the livability of raising colony dwelling house etc. can be avoided the breakage of pipe-line equipments such as pipeline and valve simultaneously.

Background technique

In recent years, the valve that disposes on the water supply pipe of collective residence etc. uses so-called singlehanded shank type valve mostly.When using this singlehanded shank type valve with the pipe passage emergency cut-off, flowing water flow speed will rapid change in stream, thereby will produce pressure wave because of the compressibility of water and the elasticity of pipeline, the propagation in stream of this pressure wave can cause producing unusual pressure rising and producing water hammer, water attack sound etc. occurs, become the noise problem in the collective residence etc.

In the past, as the water attack preventor that prevents that above-mentioned water hammer from taking place, known type that the padded coaming of enclosing buffering usefulness as shown in Figure 3 in the dividing plate mode is arranged and the type of in the dividing plate mode, enclosing the gas of buffering usefulness as shown in Figure 4.

The water attack preventor 51 of type shown in Figure 3, be with the screw screw fixed on the branch pipe(tube) 52a that comes out from pipeline 52 branches, have bottom accessory 54 and a upper body 55.Joint in bottom accessory 54 and upper body 55 is equipped with dividing plate 56 and throttle part 57, and enclosing in the upper space of dividing plate 56 has padded coaming 58.The 59th, the O shape ring of sealing usefulness.

Water attack preventor 61 shown in Figure 4, be with the screw screw fixed on the branch pipe(tube) 62a that comes out from pipeline 62 branches, have the spheroid 64 of hollow shape.Be equipped with dividing plate 65 in spheroid 64, the upper space of dividing plate 65 is enclosed has gas (figure does not show).The 66th, air pressure is adjusted valve, the 67th, polypropylene-made liner.In addition, position shown in the solid line of figure central diaphragm 65 is the position of user mode at ordinary times, and position shown in the dotted line is the position of water hammer dividing plate when taking place.

Summary of the invention

But, the water attack preventor 51,61 of above-mentioned any type all is a diaphragm type, dividing plate the 56, the 65th, necessary constituent part, also to use the padded coaming 58 or the gas of buffering usefulness simultaneously, and also must be equipped with air pressure regulator 66 etc. when using gases, the number of spare parts that therefore has constituent part is many, complex structure, the high problem of price.In addition, inclosure there is the water attack preventor 61 of the type of gas,,, therefore also has the further problem that increases of the cost that produces therefrom so also need to carry out the maintaining of make-up gas owing to can leak gas.

The object of the invention is to provide and can solves problem in the past as described above, can reduce succinct, the reduction price of number of spare parts, structure of constituent part as much as possible, and can realize non-maintaining small water attack preventor.

In order to reach above-mentioned purpose, the content of the 1st the invention record that the application proposed, be along the direction identical, be in the path that successively is arranged on pipeline in the pipeline with stream with pipeline, perhaps be small water attack preventor on the arm that successively is arranged on outside the pipeline to come out from pipe branch along the direction of intersecting with pipeline, it is characterized in that having: the compartment of terrain of the regulation of being separated by is 1 pair of pipe joint of configuration relatively; Cover the interval between described pipe joint, the spring tube that can expand by means of the water hammer that in the stream of pipeline, forms; Thereby and make the expansion of this pipe become possible mode greatly than spring tube diameter to cover its outside and the urceolus that sets to form.

The 2nd content that invention is put down in writing that the application proposed, be finishing on the basis of the 1st invention, it is characterized in that, large-diameter portion and two ends minor diameter part in the middle of urceolus comprises, this centre large-diameter portion have and two pipe joints between the basic equal lengths in interval, its external diameter is formed bigger about 1 times than the external diameter of pipeline, and this two ends minor diameter part is to make diameter diminish gradually, the two end part of spring tube are fixed at the minor diameter part between itself and the pipe joint from this large-diameter portion to two end part.

The 3rd content that invention is put down in writing that the application proposed is to finish on the 1st or the 2nd 's basis, it is characterized in that spring tube is made by organic silicon rubber.

The 1st～3 content that invention is put down in writing that above-mentioned application proposed, because its structure is along the direction identical with pipeline, be in the path that successively is arranged on pipeline in the pipeline with stream, perhaps be structure on the arm that successively is arranged on outside the pipeline to come out from pipe branch along the direction of intersecting with pipeline, and 1 pair of pipe joint that its compartment of terrain with the regulation of being separated by disposes relatively, cover the interval between described pipe joint, the spring tube that can expand by means of the water hammer that in the stream of pipeline, forms, thereby and make the expansion of this pipe become possible mode greatly than spring tube diameter to cover its outside and the urceolus that sets to form, therefore can be by the expansion absorption water hammer of spring tube, prevent the generation of water hammer effectively, can also restrain the generation of water attack sound.Therefore the water attack noise of the problem points that always becomes collective residence etc. can be eliminated, the living environment that can allow the people enjoy the comfort can be expected.Moreover, because no longer need employed in the past dividing plate, padded coaming or gas, air pressure regulator etc., thus can respective degrees ground reduce number of components, simple structure, cheap product are provided.In addition because also need not be as in the past using gases, so have the effect that can realize non-maintaining such excellence.

Description of drawings

Fig. 1 is that the first half of the small water attack preventor of expression an embodiment of the invention cuts open front view.

Fig. 2 is the concise and to the point figure of the different type of service of expression.

Fig. 3 represents the concise and to the point figure of example in the past.

Fig. 4 represents the concise and to the point figure of example in the past.

Label declaration

1 small water attack preventor, 2 pipelines

3 pipe joints, 4 annular stepped portions

Cooperation teat 6 organic silicone tubes of 5 ring-types

Large-diameter portion in the middle of 7 urceolus 8

9 two ends minor diameter parts, 10 gap parts

12 blind nuts

Embodiment

With reference to the description of drawings embodiments of the present invention.

Fig. 1 is that the first half of expression small water attack preventor cuts open front view.1 be in the path of pipeline 2 of configuration flatly among the figure, be in the pipeline the successively small water attack preventor of (i.e. mode to connect along pipe-line thereon) setting equidirectionally, be furnished with 1 pair of pipe joint 3 with this pipeline.Pipe joint 3, the one end opening 3a of portion screws togather on the relative opening portion that is connected pipeline 2 by screw thread, and the other end opening portion 3b the be separated by interval of regulation and relatively configuration.On the outer circumferential face of pipe joint 3, be formed with the annular stepped portion 4 that has the ladder difference from its open end to axial direction, so that the two end part of organic silicone tube described later can be thereon sheathed in intimate contact, and then be formed with the cooperation teat 5 of ring-type with being adjacent, so that the two ends minor diameter part of aftermentioned urceolus can be thereon sheathed in intimate contact.

Organic silicone tube 6 as spring tube is disposed by the mode with the interval between the other end opening portion 3b that covers two pipe joints 3, and its two ends closely are set on the end difference 4 of ring-type.Organic silicone tube 6 rises and when causing water hammer such expansion that the intermediate portion can be shown in dotted line at the unusual pressure based on the flowing water in the stream of pipeline 2.The 7th, cover the outside of organic silicone tube 6 and the urceolus that sets, enlarging is shaped will be made into by managing.Large-diameter portion 8 and two ends minor diameter part 9 in the middle of urceolus 7 comprises, wherein in the middle of large-diameter portion 8 have and the other end opening portion 3b of two pipe joints 3 between length of substantially equal spacing, and the size of its external diameter is formed bigger about 1 times than the external diameter of pipeline 2; Two ends minor diameter part 9 dwindles diameter gradually and forms to two end part from this large-diameter portion.Middle large-diameter portion 8 is coaxial with the stream central axis of pipeline 2, and its outer circumferential face becomes the tabular surface with the outer circumferential face almost parallel of pipeline 2.Two ends minor diameter part 9 is axially formed corrugated, the two end part of pushing organic silicone tube 6 by this corrugated portion, and match with the cooperation teat 5 of pipe joint and fix.The 10th, the gap part that forms between urceolus 7 and organic silicone tube 6 is not enclosed padded coaming or gas as in the past in this gap part 10.In addition, aforementioned tube joint 3, organic silicone tube 6 and urceolus 7 assemble by ripple crimping method.

Be in the structure that successively is arranged in the pipeline in the pipeline 2 at small water attack preventor 1 as described above, the also state that being the almost straight line that does not expand like that shown in solid line of organic silicone tube 6 under usual user mode, the water in the stream of the pipeline 2 of flowing through also be by small water attack preventor 1 pipe joint 3, organic silicone tube 6 from upstream flow downstream.

On the other hand, when will on pipeline 2, be provided with, for example the singlehanded shank type valve that do not show of figure is closed suddenly, will undergo mutation and produce pressure wave because of the flowing water speed in the stream of pipeline 2, the water hammer that produces as surge pressure, but organic silicone tube 6 can be by this water hammer and along the direction of arrow, i.e. such expansion shown in dotted line in the gap part 10 between urceolus 7 and organic silicone tube 6, thereby absorption water hammer.The absorption of such water hammer can confirm according to inventor's test result, needn't enclose padded coaming or gas in the past in gap part 10, even also can carry out having only under the situation of air.By the absorption to water hammer as described above, consequently can eliminate water attack sound, and then can prevent the breakage of pipe-line equipments such as pipeline 2 and valve.

As previously mentioned, small water attack preventor 1 is compared with product in the past, can reduce the number of spare parts of formation, therefore can make structure very succinct.Therefore, not only make simply, and operation is set also is easy to.In addition, small water attack preventor 1 needs padded coamings such as gas unlike in the past, so operating cost is low, and does not need to carry out adjunctive program because of it, so can realize non-maintaining.In addition, in this embodiment,, be to adopt to be the mode that continues in the pipeline and to install, so even narrow and small or do not have an also as easy as rolling off a log setting under the situation in vacant lot at installing space because small water attack preventor 1 is highlighted from pipeline.

In the above-described embodiment, with small water attack preventor 1 along same substantially horizontal, be and successively be arranged on the horizontal pipe 2 in the pipeline, but needn't only limit to this, also can be as shown in Figure 2, along vertical with pipeline 2 mode (promptly to be connected the mode on the pipe-line) that continues outside going up to direction, with pipeline, be provided with by screwing with screw thread on the arm 2a that comes out from pipeline 2 branches with being branch.In this case, wherein a 3a of end opening portion of a side pipe joint 3 screws by screw thread and is connected on the arm 2a, is covered with blind nut 12 on the 3a of end opening portion of the opposing party's pipe joint 3.Can predict, though such with small water attack preventor 1 in the mode that is branch's ways of connecting and is provided with in, also can realize the effect same with above-mentioned mode of execution.

And, as the pipe joint 3 of the constituent part of the small water attack preventor shown in the mode of execution 1, organic silicone tube 6, urceolus 7 etc., only a preferred example certainly carries out suitable change, modification etc. to these parts in the time of concrete enforcement in the scope that claim is put down in writing.

Claims

1. small water attack preventor, it be along the direction identical with pipeline, be successively be arranged in the pipeline pipeline with stream midway, perhaps be small water attack preventor on the arm that successively is arranged on outside the pipeline to come out from pipe branch along the direction of intersecting with pipeline, it is characterized in that, possessing has: the compartment of terrain of the regulation of being separated by is 1 pair of pipe joint of configuration relatively, on the outer circumferential face of pipe joint, be formed with the annular stepped portion that has the ladder difference from open end to axial direction; With the above-mentioned annular stepped portion close proximity of the mode two end part that cover the interval between described pipe joint and pipe joint, the spring tube that can expand by means of the water hammer that in the stream of pipeline, forms; Thereby and make the expansion of this pipe become possible mode greatly than this spring tube diameter to cover its outside and the urceolus that sets to form.

2. small water attack preventor as claimed in claim 1, large-diameter portion and two ends minor diameter part in the middle of wherein urceolus comprises, this centre large-diameter portion have and two pipe joints between the basic equal lengths in interval, its external diameter is formed bigger about 1 times than the external diameter of pipeline, and this two ends minor diameter part is to make diameter diminish gradually, the two end part of spring tube are fixed at the minor diameter part between itself and the pipe joint from this large-diameter portion to two end part.

3. small water attack preventor as claimed in claim 1 or 2, wherein spring tube is made by organic silicon rubber.