CN205078809U

CN205078809U - Decompression governing valve

Info

Publication number: CN205078809U
Application number: CN201520877869.4U
Authority: CN
Inventors: 李松
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-11-06
Filing date: 2015-11-06
Publication date: 2016-03-09
Anticipated expiration: 2025-11-06

Abstract

The utility model discloses a decompression governing valve, which comprises the following components: a valve body, valve body one end is provided with the water inlet, the other end is provided with the delivery port, valve body inside is provided with one and adjusts the passageway, adjust passageway and water inlet is provided with the regulation end cap with linking to each other one end port department matching, the regulation end cap is kept away from regulation passageway one end and is installed in the valve body through a regulating spring, it still is provided with the valve ejector pin to adjust the continuous one end of passageway and delivery port, be provided with an ejector pin between valve ejector pin and the regulation end cap, the middle part at a rubber valve pad is fixed to the valve ejector pin, rubber valve back rest installs in the valve body through the 2nd regulating spring from the one end of valve ejector pin, a serial communication port, adjusting above the passageway and adjusting the passageway and intake the position of one end tip and be provided with the apopore being close to on the side of delivery port, the apopore deviates from adjusts on the adjacent regulation passageway inner wall in end cap one side the still horizontal fixed manger plate spacer that is provided with. The utility model has the advantages of simple structure, pressure regulating stability is good, long service life.

Description

A kind of decompression valve

Technical field

The utility model relates to a kind of control valve that can regulate and control water flow pressure in waterway pipe, is specifically related to a kind of decompression valve.

Background technique

Claimant once devised a kind of water-saving flush device and had applied for that number of patent application was the utility model patent of 201120015167.7 and 201120533016.0, in this patented technology, adopt elastic membrane accumulating hydraulic pressure to improve retaining pressure, strengthen water outlet developing result.Meanwhile, in this water-saving flush device, in order to prevent intake pressure from washing out elastic membrane and casing, the water intake of its device can not be directly connected in the pipe network of water route, therefore needs to arrange reduction valve to ensure that intake pressure can not be excessive, and must keep constant.Reduction valve is by regulating, inlet pressure being reduced to the outlet pressure of a certain needs, and rely on the energy of medium itself, make the valve that outlet pressure keeps stable automatically.From hydromechanical viewpoint, reduction valve is the throttle element that a local resistance can change, and namely by changing orifice size, the kinetic energy of flow velocity and fluid being changed, causes the different pressure losses, thus reach the object of decompression.Then rely on the adjustment of control and regulation system, the fluctuation of downstream pressure and spring force are balanced each other, makes downstream pressure keep constant in certain margin of error.

Existing conventional vacuum valve arrangement, comprise valve body, valve body one end is provided with water intake, the other end is provided with water outlet, valve inner is provided with one perpendicular to water inlet and outlet direction and regulates passage, passage end is regulated to be connected with water intake, the other end is connected with water outlet, the passage port, one end that is connected with water intake is regulated to be provided with adjustment plug matchingly, plug is regulated to be installed in valve body away from adjustment passage end by the first Regulation spring, the passage one end that is connected with water outlet is regulated also to be provided with valve push rod, valve push rod has the auxiliary section that extends into the column construction regulated in passage, auxiliary section and adjustment channel lumen wall are for slidably to coordinate, auxiliary section periphery offered tank to facilitate water, end, auxiliary section and just to arrange adjustment plug between be provided with a push rod, push rod one end is slidably mounted in a push rod mounting groove of end, auxiliary section, the push rod the other end is fixedly connected with adjustment plug, valve push rod deviates from the middle part regulating one end of plug to be fixed on a rubber valve pad, rubber valve pad peripheral sealing is fixed in the installation cavity in valve body, rubber valve acting as a cushion is installed in valve body from one end of valve push rod by the second Regulation spring.Like this, during use, when waterexit end discharge pressure is less, rubber valve pad reduces by discharge pressure, toward regulating the direction of plug to move under the thrust of the second Regulation spring, promoted outward by adjustment plug by valve push rod and push rod, make to regulate plug and regulate the gap between passage feed-water end to increase, inflow increases to improve discharge pressure; After waterexit end discharge pressure increases, rubber valve pad increases by discharge pressure, its thrust overcoming the second Regulation spring is moved outward, plug is regulated to move inward under the thrust of the first Regulation spring, make to regulate plug and regulate gap between passage to reduce, inflow reduces to reduce discharge pressure.The transient equiliblium of said process regulates, and waterexit end pressure can be maintained within a controlled scope, produce and regulate effect of easing stress.

But this existing conventional vacuum valve, there is the defect of following two aspects: be 1, valve push rod be end face that is direct and water stream contacts for installing the interior edge face of push rod, part water flow pressure directly can impact this end face, reduction valve is caused to vibrate, simultaneously when intake pressure is larger, even there is self-closing phenomenon, cannot intake.Because oscillation phenomenon can make rubber valve pad easily damaged, therefore reduce working life.2, the discharge pressure of this conventional vacuum valve is comparatively large by the influence of fluctuations of intake pressure, and after water-saving flush device, when using under different intake pressure, the hydraulic pressure of water-saving flush device inside can be different, have a strong impact on device stability in use.

Model utility content

For above-mentioned the deficiencies in the prior art, technical problem to be solved in the utility model is: how to provide a kind of structure simple, pressure regulation stability is better, the decompression valve of longer service life.

In order to solve the problems of the technologies described above, the utility model have employed following technological scheme:

A kind of decompression valve, comprise valve body, valve body one end is provided with water intake, the other end is provided with water outlet, valve inner is provided with one perpendicular to water inlet and outlet direction and regulates passage, passage end is regulated to be connected with water intake, the other end is connected with water outlet, the passage port, one end that is connected with water intake is regulated to be provided with adjustment plug matchingly, plug is regulated to be installed in valve body away from adjustment passage end by the first Regulation spring, the passage one end that is connected with water outlet is regulated also to be provided with valve push rod, valve push rod has the auxiliary section that extends into the column construction regulated in passage, auxiliary section and adjustment channel lumen wall are for slidably to coordinate, end, auxiliary section and just to arrange adjustment plug between be provided with a push rod, push rod one end is slidably mounted in a push rod mounting groove of end, auxiliary section, the push rod the other end is fixedly connected with adjustment plug, valve push rod deviates from the middle part regulating one end of plug to be fixed on a rubber valve pad, rubber valve pad peripheral sealing is fixed in the installation cavity in valve body, rubber valve acting as a cushion is installed in valve body from one end of valve push rod by the second Regulation spring, it is characterized in that, above described adjustment passage on the side of water outlet near regulating the intake position of end, one end of passage to be provided with osculum, osculum deviates from the adjacent adjustment vias inner walls in adjustment plug side and be laterally fixedly installed a dash partition, dash partition is positioned at outside the inner end stroke scope of valve push rod, is provided with via hole and push rod is slidably matched in the middle part of dash partition.

Like this, regulate osculum newly-increased on passage and dash partition, change water outlet path, directly flow out to water outlet from osculum after making current enter adjustment passage, like this, current are blocked by dash partition, hydraulic pressure can not be applied directly to the end of valve push rod, avoid and directly bear hydraulic pressure due to valve push rod end and impact and the disc vibration that causes, and then reduce destruction that rubber valve pad is produced, self-closing phenomenon can also be avoided simultaneously.When the hydraulic pressure of water outlet reaches setting value, the pressure due to water acts on and rubber valve pad promotes valve push rod moves, and forces the second Regulation spring retraction, regulates plug to close under the first spring action and regulates passage, at once stop water inlet.Greatly ensure that the stability of water outlet and extend rubber valve pad working life.

As optimization, inside, described water intake one end is also provided with one for realizing the one-way valve of unidirectional water inflow.

Like this, when lack of water in supply pipe (cutting off the water), one-way valve can stop water stored in water storing device to be back in supply pipe.Ensure that stability and the reliability of use better.

As optimization, described adjustment plug deviates from adjustment passage end and is arranged on a valve seat, and valve seat is arranged on bonnet by described first Regulation spring, and bonnet rearward lid seal ring is sealedly connected on valve body.

Like this, can conveniently install and assemble.

As optimization, be affixed outside rubber valve pad and be provided with one piece of pad, outside pad and described second Regulation spring the inner abuts against, second Regulation spring outer end and an adjusting screw the inner abut, adjusting screw is engaged in the outer end position of inner chamber of overall cylindrical circular diaphragm gland, diaphragm gland is fixed on valve body and by the inner chamber of diaphragm gland by cover plate and tapping screw and forms the space supplying accommodation second Regulation spring, and adjusting screw outer end is extended diaphragm gland and is combined with locking nut.

Like this, have simple and compact for structure, convenient installation and assembling, fixing reliable and stable, facilitate the advantages such as the impacting force of adjustment second Regulation spring simultaneously.

In sum, it is simple that the utility model has structure, pressure regulation good stability, the advantage of long service life.

Accompanying drawing explanation

Fig. 1 is the structural representation of the optimum mode of execution of the utility model decompression valve.

Embodiment

Below in conjunction with optimum mode of execution and accompanying drawing, the utility model is described in further detail.

Optimum mode of execution: as shown in Figure 1, a kind of decompression valve, comprise valve body 1, valve body 1 one end is provided with water intake 17, the other end is provided with water outlet 18, valve body 1 internal vertical is provided with one and regulates passage in water inlet and outlet direction, passage end is regulated to be connected with water intake 17, the other end is connected with water outlet 18, regulate passage be connected with water intake port, one end be provided with matchingly regulate plug 16, plug 16 is regulated to be installed in valve body 1 away from adjustment passage end by the first Regulation spring 13, the passage one end that is connected with water outlet is regulated also to be provided with valve push rod 10, valve push rod 10 has the auxiliary section that extends into the column construction regulated in passage, auxiliary section and adjustment channel lumen wall are for slidably to coordinate, end, auxiliary section and just to arrange adjustment plug 16 between be provided with a push rod 11, push rod 11 one end is slidably mounted in a push rod mounting groove of end, auxiliary section, the push rod the other end is fixedly connected with adjustment plug 16, valve push rod 10 deviates from the middle part regulating one end of plug 16 to be fixed on a rubber valve pad 2, rubber valve pad 2 peripheral sealing is fixed in the installation cavity in valve body 1, one end that rubber valve pad 2 deviates from valve push rod is installed in valve body 1 by the second Regulation spring 8, (the concrete elastic force that the elastic force of the second Regulation spring is greater than the first Regulation spring when implementing make its work more smooth and easy) its main points are, above described adjustment passage on the side of water outlet near regulating the intake position of end, one end of passage to be provided with osculum 19, osculum 19 deviates from the adjacent adjustment vias inner walls in adjustment plug 16 side and be laterally fixedly installed a dash partition 20, dash partition 20 is positioned at outside the inner end stroke scope of valve push rod 10, is provided with via hole and push rod 11 is slidably matched in the middle part of dash partition 20.

Like this, regulate osculum newly-increased on passage and dash partition, change water outlet path, directly water outlet is flowed out to from osculum after making current enter adjustment passage, like this, current are blocked by dash partition, and hydraulic pressure can not be applied directly to the end of valve push rod, avoid directly to bear hydraulic pressure due to valve push rod end and impact and the vibration that causes and the destruction produced rubber valve pad 2.Greatly ensure that the stability of water outlet and extend rubber valve pad 2 working life.

Wherein, inside, described water intake 17 one end is also provided with one for realizing the one-way valve 21 of unidirectional water inflow.

Wherein, described adjustment plug 16 deviates from adjustment passage end and is arranged on a valve seat 14, and valve seat 14 is arranged on bonnet 15 by described first Regulation spring 13, and bonnet 15 rearward lid seal ring 12 is sealedly connected on valve body 1.

Like this, can conveniently install and assemble.

Wherein, be affixed outside rubber valve pad 2 and be provided with one piece of pad 4, outside pad 4 and described second Regulation spring 8 the inner abuts against, second Regulation spring 8 outer end and adjusting screw 6 the inner abut, adjusting screw is engaged in the outer end position of inner chamber of overall cylindrical circular diaphragm gland 5, diaphragm gland 5 is fixed on valve body 1 and by the inner chamber of diaphragm gland by cover plate 3 and tapping screw 9 and forms the space supplying accommodation second Regulation spring 8, and adjusting screw 6 outer end is extended diaphragm gland and is combined with locking nut 7.

Like this, have simple and compact for structure, convenient installation and assembling, fixing reliable and stable, facilitate the advantages such as the impacting force of adjustment second Regulation spring 8 simultaneously.

Claims

1. a decompression valve, comprise valve body, valve body one end is provided with water intake, the other end is provided with water outlet, valve inner is provided with one perpendicular to water inlet and outlet direction and regulates passage, passage end is regulated to be connected with water intake, the other end is connected with water outlet, the passage port, one end that is connected with water intake is regulated to be provided with adjustment plug matchingly, plug is regulated to be installed in valve body away from adjustment passage end by the first Regulation spring, the passage one end that is connected with water outlet is regulated also to be provided with valve push rod, valve push rod has the auxiliary section that extends into the column construction regulated in passage, auxiliary section and adjustment channel lumen wall are for slidably to coordinate, end, auxiliary section and just to arrange adjustment plug between be provided with a push rod, push rod one end is slidably mounted in a push rod mounting groove of end, auxiliary section, the push rod the other end is fixedly connected with adjustment plug, valve push rod deviates from the middle part regulating one end of plug to be fixed on a rubber valve pad, rubber valve pad peripheral sealing is fixed in the installation cavity in valve body, rubber valve acting as a cushion is installed in valve body from one end of valve push rod by the second Regulation spring, it is characterized in that, above described adjustment passage on the side of water outlet near regulating the intake position of end, one end of passage to be provided with osculum, osculum deviates from the adjacent adjustment vias inner walls in adjustment plug side and be laterally fixedly installed a dash partition, dash partition is positioned at outside the inner end stroke scope of valve push rod, is provided with via hole and push rod is slidably matched in the middle part of dash partition.

2. decompression valve as claimed in claim 1, is characterized in that, inside, described water intake one end is also provided with one for realizing the one-way valve of unidirectional water inflow.

3. decompression valve as claimed in claim 1, is characterized in that, described adjustment plug deviates from adjustment passage end and is arranged on a valve seat, and valve seat is arranged on bonnet by described first Regulation spring, and bonnet rearward lid seal ring is sealedly connected on valve body.

4. decompression valve as claimed in claim 1, it is characterized in that, be affixed outside rubber valve pad and be provided with one piece of pad, outside pad and described second Regulation spring the inner abuts against, second Regulation spring outer end and an adjusting screw the inner abut, adjusting screw is engaged in the outer end position of inner chamber of overall cylindrical circular diaphragm gland, diaphragm gland is fixed on valve body and by the inner chamber of diaphragm gland by cover plate and tapping screw and forms the space supplying accommodation second Regulation spring, and adjusting screw outer end is extended diaphragm gland and is combined with locking nut.