CN202165649U

CN202165649U - Dual-clamp easily-replaced seat check valve

Info

Publication number: CN202165649U
Application number: CN2011201896278U
Authority: CN
Inventors: 严云北
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-06-08
Filing date: 2011-06-08
Publication date: 2012-03-14
Anticipated expiration: 2021-06-08

Abstract

The utility model provides a dual-clamp easily-replace seat check valve. Under the situation that the geometric appearance dimension, the working principle and the installation and use method the of the existing dual-clamp easily-replaced seat check valve with small volume are not changed, the dual-clamp easily-replaced seat check valve is characterized in that a valve seat which is fixed and can not be changed in the existing check valve is changed into a movable valve seat capable of being replaced and maintained by using a simple method. Then, as a damping and cushioning device is additionally arranged in a narrow cavity of the movable valve seat, the valve seat can be replaced by using a simple method, so that the service life of the check valve is effectively prolonged, resources and energy sources generated when the existing the check valve is out of use for more years and only can be wholly abandoned, re-melted and remade are saved, and the carbon discharge pollution is reduced. The utility model truly is an ideal, safe and reliable novel check valve.

Description

Be prone to change a safety check to pressing from both sides

Technical field

The utility model relates to a kind of industrial valve; Identical in its agent structure, working principle and installation and application and the existing multiple type of safety check to the folder Swing check valve; But be that novel valve seat is movable outside they different; After service failure, the user can use simple method to change; Be the non-return valve that existing minimum volume Wafer Check Valves has damping and buffering effect, belong to the design and the manufacturing field of industrial valve.

Background technique

In the existing technology, the safety check of more than ten kinds such as main rotary-open type, rise-fall type, dish formula, cut-off type, their valve seat all is to be fixed in the valve body, after service failure, the user can not use simple method to change; Can only whole discarded melting down remake, this is waste resource, the energy that generally deposits in the whole nation, increases the carbon emission problem of environment pollution caused, therefore is necessary existing technology is improved.

Summary of the invention

The purpose of the utility model is that overcoming the valve seat that has safety check now is to be fixed in the valve body; It damages back user and can not use simple method to change, can only whole discarded problem, and carry a kind of user of arch and can use simple method dismounting activity valve seat; And folder Swing check valve main body is the basis with existing; Do not change existing profile physical dimension and working principle yet, in its narrow space, increased buffering and damping function, the non-return valve that effectively increases the service life.

The utility model is accomplished through following technical proposal: under the situation that does not change existing profile physical dimension and working principle and installation and application to the folder Swing check valve; It is characterized in that novel valve body, valve seat, check plate, the rotation axis base of comprising, described valve seat and rotation axis base all are movable mounting structures; And damping and damping device have been set up at the upper and lower of rotation axis base.Described round ring seat is to use mode movingly to be installed in the through hole of annular valve.Described ring rotation axis base is to use mode movingly to be installed in the through hole of annular valve, and has a U type slotted hole above it.Described damping and damping device are respectively the upper left corner of columniform damping spring one end angle mount U type slotted hole above rotation axis base, and the other end is pressed on the bulb of check plate top; The damping spring of arc sheet is mounted in the below of rotation axis base through hole, and its arc back of the body contacts with the cambered surface of check plate backboard below.

Medium as pressure flows left from the pipeline on valve body the right; Promote check plate and rotate to dotted line position left; Safety check is opened, and when the pressure source of the right medium stops, check plate is depressed on the sealing surface of seat that return is pressed on valve body the right by left side medium certainly; Stop medium counter flow, accomplish closing of safety check.

On the bulb of check plate top damping spring is installed, the below is equipped with buffering spring sheet, in opening-closing process, has reduced the brinelling of check plate to valve body and valve seat.

Take apart being clipped in flange plate and the sealing gasket on the valve body both ends of the surface, just can take out the movable valve seat of installing movingly simply, movable rotation axis base, check plate etc. all part keep in repair and change.

The utility model compared with prior art; Have advantage and effect: adopt such scheme; This is novel not to change existing profile physical dimension to the folder Swing check valve, under the situation of working principle and installation and application, cashes that the valve seat of fixing in the valve body is arranged is movable valve seat; Repair and replacement simply, disposable integral is discarded in the past to need not picture.Increase the service life, reduce and melt down waste resource, the energy that remakes generation, increase the carbon emission befouling environment.

The employing such scheme, cushioning and damping function pressing from both sides to increase in the safety check of existing minimum volume, the minimizing check plate to the brinelling of valve body and valve seat, also is the working life that prolongs safety check in opening-closing process.

Adopt such scheme; The bulb of check plate top can the U type slotted hole above rotation axis base in left and right horizontal move; Overcome existing rotary shaft hole adding the deviation that produce man-hour, make check plate and bulb have the room that moves to right to be adjacent on the sealing surface of valve seat, improved sealability.Be the safe and reliable non-return valve of an ideal in fact.

Description of drawings

Fig. 1 is the structural representation of the utility model

Embodiment

Do below in conjunction with 1 pair of the utility model of accompanying drawing and to further describe

The position of solid line check plate 7 as shown in Figure 1 in valve body 1 is this novel closed condition, and dotted line is an opening state.

Be installed on the pipeline when novel, have the medium of pressure to flow from the right of valve body 1 left, bulb 8 rotary oscillation in U type slotted hole 4 and rectangular groove 10 that medium promotes check plate 7 and top is novel unlatching to dotted line position at this moment.When the pressure source of the right medium stops, under the effect of pressure certainly of check plate 7 on the left side media, get back to solid line position, be pressed on the sealing surface of movable valve seat 2 on the right, stop medium counter flow, accomplish closing of non-return valve.

The movable valve seat 2 of ring all is to use mode movingly to be installed in the through hole of annular valve 1 with ring rotation axis base 3; Rotation axis base 3 tops have a U type slotted hole 4, on the bulb 8 above the cylindrical damping spring 5 that the left oblique upper of U type slotted hole 4 is equipped with is pressed on the right check plate 7; The through hole below of rotation axis base 3 is equipped with arc buffering spring sheet 6; The arc back of the body of buffering spring sheet 6 contacts with the cambered surface of check plate 7 backboards below; Because check plate 7 in opening-closing process, has the effect of damping spring 5 and buffering shell fragment 6, alleviated the brinelling of 7 pairs of valve bodies of check plate 1 and valve seat 2.

Because room 9 is left on the right side of the bulb 8 of check plate 7 tops, can overcome existing rotary shaft hole and add the deviation that produce man-hour, favourable check plate 7 is adjacent to the sealing surface at valve seat 2, has improved the sealability of non-return valve.

Claims

1. one kind is prone to change a safety check to pressing from both sides, and comprises valve body, valve seat, check plate, rotation axis base, it is characterized in that valve seat and rotation axis base all are movable mounting structures; And damping and damping device have been set up at the upper and lower of rotation axis base.

2. according to claim 1ly be prone to change a safety check, it is characterized in that described round ring seat is to be installed in the through hole of annular valve with movingly mode pressing from both sides.

3. according to claim 1ly be prone to change a safety check, it is characterized in that described ring rotation axis base is to be installed in the through hole of annular valve with movingly mode, and have a U type slotted hole above it pressing from both sides.

4. according to claim 1ly be prone to change a safety check to pressing from both sides, it is characterized in that described damping and damping device, be respectively the upper left corner of columniform damping spring one end angle mount U type slotted hole above rotation axis base, the other end is pressed on the bulb of check plate top; The damping spring of arc sheet is mounted in the below of rotation axis base through hole, and its arc back of the body contacts with the cambered surface of check plate backboard below.