CN201575188U

CN201575188U - Pipe clamp valve

Info

Publication number: CN201575188U
Application number: CN2009200874490U
Authority: CN
Inventors: 蔡国松
Original assignee: WUHAN HANXING ENVIRONMENT PROTECTION ENGINEERING Co Ltd
Current assignee: WUHAN HANXING ENVIRONMENT PROTECTION ENGINEERING Co Ltd
Priority date: 2009-07-21
Filing date: 2009-07-21
Publication date: 2010-09-08
Anticipated expiration: 2019-07-21

Abstract

The utility model relates to a pipe clamp valve. The pipe clamp valve comprises an upper valve body, a lower valve body, a rubber frame, an upper compression bar, a lower compression bar, a valve stem, a bracket and a cylinder, wherein the cylinder is fixed on the bracket and connected with one end of the valve stem; the other end of the valve stem is connected with the upper compression bar; the upper valve body and the lower valve body are respectively mounted on the upper end and the lower end of the rubber frame; the upper compression bar is arranged between the upper valve body and the rubber frame; the lower compression bar is arranged between the lower valve body and the rubber frame; the rubber inner shell of the rubber frame has a corrugated waveform axial cross section; and the linear length of the expanded corrugated waveform surface is larger than or equal to the curve length of the rubber surface when the valve is closed. The pipe clamp valve can prolong the service life of the rubber inner shell, enhance the capability of bearing medium pressure of the rubber frame, lower the energy consumption for driving the cylinder and reduce the manufacturing cost of the cylinder.

Description

Pipe clip valve

Technical field

The utility model relates to a kind of water supply and sewerage pipeline keying and uses valve, is specifically related to a kind of pipe clip valve.

Background technique

At present, seen pipe clip valve all is directly to adopt the inner bag of straight-through rubber pipe as pipe clip valve on the market, sees Fig. 5, and this inner bag is when valve closing, and its rubber skeleton fiber becomes " V " type by " one " font under the effect of depression bar.Most of stressed fiber is all elongated by force by depression bar, is in elastic deformation.The about 10%-20% of elongation, extensibility is bigger under the band pressure situation.The fibrous skeleton of rubber is stressed owing to needing, the general big and stressed good material cost height of elastic deformation amount, and the big more easy more rubber skeleton that causes of amount of deformation separates with rubber, and working life is short relatively more.Simultaneously, big more its elastic force of amount of deformation is big more, when selecting the driving cylinder of pneumatic valve, need when the cylinder type selecting, reserve bigger power and promote rubber pipe to sealing station, cause unnecessary increase of driving force and cylinder model specification bigger than normal, expend the unnecessary energy, increased unnecessary cost.

Summary of the invention

The utility model provides a kind of novel pipe clip valve in order to overcome problem and the shortcoming that above-mentioned prior art exists, and improves existing pipe clamp valve rubber liner effectively and has short, defectives such as cost is high, power consumption in working life.

Technical solutions of the utility model are:

Pipe clip valve, by upper valve body, following valve body, rubber skeleton, upperpush rod, down-pressed pole, valve rod, support, cylinder is formed, cylinder is fixed on the support and with valve rod one end and links to each other, the valve rod the other end links to each other with upperpush rod, rubber skeleton is installed valve body respectively in two ends up and down, following valve body, be provided with upperpush rod between upper valve body and the rubber skeleton, be provided with down-pressed pole between following valve body and the rubber skeleton, it is characterized in that: the rubber liner axial section of described rubber skeleton is the structure of fold waveform, and the rubber covering arc length of fold waved surface when launching straight length more than or equal to valve closing.

Straight-through rubber pipe commonly used is transformed into band fold skeleton, the fold length of run generally is not less than the actual arc line length of rubber behind the valve closing, to avoid straight-through rubber pipe when the valve closing, its rubber liner fibrous skeleton is under the effect of depression bar, become V-type by yi word pattern, the unfavorable situation that most of stressed fiber is all elongated by force by depression bar.See Fig. 3, Fig. 4.

During the normal pressure valve closing, valve fold type rubber skeleton can be worked only bearing under the pressure medium condition.Promptly in the depression bar course of exerting pressure, skeleton anamorphic stretching under fold shape or waveform configuration condition, the waveform fibrous skeleton is drawn as a circular arc when depression bar is finished whole stroke, therefore can not bear the huge tension force that depression bar additionally applies because of the stressed fiber of skeleton falls short of.

The utility model has prolonged the working life of the rubber liner of pipe clip valve, has improved the ability of bearing pressure medium of rubber skeleton, has reduced the energy consumption that cylinder drives, and has lowered the cost of cylinder.

Description of drawings

Fig. 1, Fig. 2 are structural representation of the present utility model.

Fig. 3, Fig. 4 are inner-tube structure schematic representation of the present utility model.

Fig. 5 is the inner-tube structure schematic representation of existing pipe clip valve.

Embodiment

The utility model will be further described in conjunction with the accompanying drawings.

As Fig. 1, shown in Figure 2, the utility model is by upper valve body 4, following valve body 1, rubber skeleton 3, upperpush rod 5, down-pressed pole 2, valve rod 6, support 7, cylinder 8 is formed, cylinder 8 is fixed on the support 7 and with valve rod 6 one ends and links to each other, valve rod 6 the other ends link to each other with upperpush rod 5, rubber skeleton is installed valve body 4 respectively in two ends about in the of 3, following valve body 1, be provided with upperpush rod 5 between upper valve body 4 and the rubber skeleton 3, be provided with down-pressed pole 2 between following valve body 1 and the rubber skeleton 3, the rubber liner axial section of described rubber skeleton 3 is the structure of fold waveform, and the rubber covering arc length of fold waved surface when launching straight length more than or equal to valve closing.

In conjunction with Fig. 1, shown in Figure 2, driving mode adopts the single-acting cylinder, in the closing motion process, overcome pipeline pressure by cylinder 8 and promote valve rod 6 and upperpush rod 5 downwards, rubber skeleton 3 is launched to be pressed onto sealing station, and this moment, fold type rubber skeleton was not stretched, and just the fold wave mode is launched, rubber elasticity is still good, can realize elastic packing easily.

Claims

1. pipe clip valve, by upper valve body, following valve body, rubber skeleton, upperpush rod, down-pressed pole, valve rod, support, cylinder is formed, cylinder is fixed on the support and with valve rod one end and links to each other, the valve rod the other end links to each other with upperpush rod, rubber skeleton is installed valve body respectively in two ends up and down, following valve body, be provided with upperpush rod between upper valve body and the rubber skeleton, be provided with down-pressed pole between following valve body and the rubber skeleton, it is characterized in that: the rubber liner axial section of described rubber skeleton is the structure of fold waveform, and the rubber covering arc length of fold waved surface when launching straight length more than or equal to valve closing.