CN212775748U

CN212775748U - Flange type silencing check valve

Info

Publication number: CN212775748U
Application number: CN202021637125.2U
Authority: CN
Inventors: 张子轩; 段克勤
Original assignee: Guangdong Yuquan Fluid Technology Co ltd
Current assignee: Guangdong Yuquan Fluid Technology Co ltd
Priority date: 2020-08-07
Filing date: 2020-08-07
Publication date: 2021-03-23
Anticipated expiration: 2030-08-07

Abstract

The utility model discloses a flange formula noise elimination check valve, including valve body, mounting hole, recess, bulge loop and first sealing washer. This flange formula noise elimination check valve, during the use, at first with the pipeline looks fixed connection that the valve body passes through the mounting hole of top and bottom both sides with needs use, recess and first sealing washer form sealedly with the top pipeline this moment, the bulge loop forms sealedly with lower pipeline, when fluid passes through the valve body, at first fluid forms the impact to first valve plate, make first valve plate drive the connecting axle at first support frame, upwards slide in second support frame and the third support frame, the connecting axle drives the second valve plate and rises, first valve plate produces the extrusion to first spring simultaneously, make first spring exert a thrust to first valve plate all the time, at this moment fluid flows into the valve body from the clearance between first valve plate and the first solid fixed ring, the fluid that flows into in the valve body passes through the clearance between second valve body and the solid fixed ring of second simultaneously and continues the circulation, thereby make fluid pass through the valve body.

Description

Flange type silencing check valve

Technical Field

The utility model relates to a check valve field specifically is flange formula noise elimination check valve.

Background

The check valve is a valve in which the opening and closing piece is a circular valve clack and acts by self weight, external pressure or medium pressure to block the media from flowing backwards. It belongs to the automatic valve category, also called check valve, reflux valve or isolation valve. The valve clack motion mode is divided into lifting type and swing type. The lift check valve is similar in structure to the stop valve and only lacks a valve rod that drives the valve flap. The medium flows in from the inlet end (lower side) and flows out from the outlet end (upper side). The valve is opened when the inlet pressure is greater than the sum of the weight of the flap and its flow resistance. Otherwise, the valve is closed when the medium flows backwards. Swing check valves have a flap that is tilted and can pivot, and operate on a similar principle to lift check valves. The check valve is commonly used as a bottom valve of a water pumping device and can prevent the backflow of water.

In the use process of the check valve, the check valve can only check the fluid, but cannot seal the fluid, has limitation linearity, and cannot meet the existing production requirement.

SUMMERY OF THE UTILITY MODEL

Therefore, to the above-mentioned problem, the utility model provides a flange formula noise elimination check valve.

In order to realize the technical problem, the solution adopted by the utility model is that the flange type noise elimination check valve comprises a valve body, the top and bottom surfaces of the valve body are provided with mounting holes corresponding to each other at equal intervals on the circumference, the top surface of the valve body is provided with a sealing groove, a first sealing ring is arranged in the sealing groove, the bottom surface of the valve body is fixedly connected with a convex ring, the convex ring corresponds to the sealing groove, a non-return structure is arranged in the valve body, the non-return structure comprises a first fixing ring, a second fixing ring, a third fixing ring, a first supporting frame, a second supporting frame, a third supporting frame, a connecting shaft, a first spring, a first valve plate, a second sealing ring and a third sealing ring, one side of the upper part of the valve body is fixedly connected with a contraction groove, the contraction groove is connected with an ejector block matched with the contraction groove in a sliding manner, ejector pad and fixed block are trapezoidal and its hypotenuse is corresponding, one side of ejector pad is rotated and is connected with the depression bar, shrink groove and fixedly connected with pressure handle are worn out to the one end of depression bar, be equipped with the second spring between the terminal surface in pressure handle and shrink groove, the second spring housing is established outside the depression bar, the outer wall symmetry fixedly connected with nose bar of depression bar, the outside symmetry of nose bar is equipped with the fourth sealing washer, fourth sealing washer fixed connection is on the outer wall of depression bar, the spout that corresponds and the adaptation with the nose bar is seted up to the inboard symmetry of tip in shrink groove, the one end of spout is equipped with the draw-in groove rather than linking to each other, the draw-in groove is seted up on.

As a further aspect of the present invention: and the valve body is sleeved with soundproof cotton.

As a further aspect of the present invention: the first fixing ring is fixedly connected to the inner side of the top of the valve body, the second fixing ring is fixedly connected to the inner side of the middle of the valve body, and the third fixing ring is fixedly connected to the inner side of the bottom of the valve body.

As a further aspect of the present invention: the first support frame is fixedly connected to the inner wall of the first fixing ring, the second support frame is fixedly connected to the inner wall of the second fixing ring, and the third support frame is fixedly connected to the inner wall of the third fixing ring.

As a further aspect of the present invention: the connecting shaft penetrates through the first support frame, the second support frame and the third support frame at the same time, and the connecting shaft is connected with the inner walls of the first support frame, the second support frame and the third support frame in a sliding mode.

As a further aspect of the present invention: the outer wall of the lower portion of the connecting shaft is fixedly connected with a first valve plate, the outer wall of the middle portion of the connecting shaft is fixedly connected with a second valve plate, the bottom surface of the first valve plate is fixedly connected with a second sealing ring, the bottom surface of the second valve plate is fixedly connected with a third sealing ring, the first valve plate is arranged above the third fixing ring, and the second valve plate is arranged above the second fixing ring.

As a further aspect of the present invention: the first spring is arranged between the second supporting frame and the first valve plate, and the first spring is sleeved outside the connecting shaft.

By adopting the technical scheme, the beneficial effects of the utility model are that:

1. the utility model discloses a valve body, second solid fixed ring, third solid fixed ring, second support frame, third support frame, connecting axle, first valve plate, second sealing washer, third sealing washer, shrink groove, kicking block, fixed block, depression bar, pressure handle, second spring, nose bar, fourth sealing washer, draw-in groove and the cooperation between the spout use for when the valve body needs to cut, press the pressure handle and can drive the connecting axle and initiatively slide down, thereby adjust the position of first valve plate, second valve plate, carry out the fluid that cuts; meanwhile, the fitting relation between the top block and the fixed block can be fixed through the adjustment of the sliding groove, the convex rod and the clamping groove, and the non-return body is maintained; meanwhile, the fourth sealing ring is used for sealing the compression bar and the contraction groove to avoid water leakage; meanwhile, the pressure handle is reset through the spring, and a stop body of the valve body is conveniently removed, so that the flange type silencing check valve has a stop function, can stop fluid, has more comprehensive functions and is convenient for daily production and use.

2. The utility model has the advantages that the valve body is more convenient to install through the matching use among the valve body, the mounting hole, the groove, the first sealing ring and the convex ring, and the valve body has the non-return function through the matching use among the first fixing ring, the second fixing ring, the third fixing ring, the first support frame, the second support frame, the third support frame, the connecting shaft, the first spring, the first valve plate, the second valve plate, the first sealing ring and the second sealing ring; simultaneously to the design of two valve plates, first spring, first sealing washer and second sealing washer make the non return of valve body more effective and inseparable, through soundproof cotton's use for the valve body has sound insulation function, and the produced noise of valve body is flowed through to effectual reduction fluid, thereby makes the non return structure of this flange formula noise elimination check valve more reliable, and it is more convenient to use.

Drawings

Fig. 1 is a schematic sectional structure view of a flange type sound-deadening check valve.

Fig. 2 is an enlarged schematic view of a in the flange-type muffling check valve.

Fig. 3 is a perspective view of the flange-type noise elimination check valve.

In the figure: the valve body 1, mounting hole 2, recess 3, first sealing washer 4, bulge loop 5, non return structure 6, first solid fixed ring 7, the solid fixed ring 8 of second, the solid fixed ring 9 of third, first support frame 10, second support frame 11, third support frame 12, connecting axle 13, first spring 14, first valve plate 15, second valve plate 16, second sealing washer 17, third sealing washer 18, shrink groove 19, kicking block 20, fixed block 21, depression bar 22, press handle 23, second spring 24, protruding pole 25, fourth sealing washer 26, draw-in groove 27, soundproof cotton 28, spout 29.

Detailed Description

The present invention will now be further described with reference to the accompanying drawings and specific embodiments.

The first embodiment is as follows:

referring to fig. 1 to 3, in the embodiment of the present invention, a flange type noise elimination check valve includes a valve body 1, mounting holes 2 are formed on both top and bottom surfaces of the valve body 1 at equal intervals, the valve body 1 has a sealing groove 3 on the top surface, a first sealing ring 4 is disposed in the sealing groove 3, a convex ring 5 is fixedly connected to the bottom surface of the valve body 1, the convex ring 5 corresponds to the sealing groove 3, a check structure 6 is disposed in the valve body 1, the check structure 6 includes a first fixing ring 7, a second fixing ring 8, a third fixing ring 9, a first support frame 10, a second support frame 11, a third support frame 12, a connecting shaft 13, a first spring 14, a first valve plate 15, a second valve plate 16, a second sealing ring 17 and a third sealing ring 18, a contraction groove 19 is fixedly connected to one side of the upper portion of the valve body 1, a top block 20 adapted to the contraction groove 19 is slidably connected to the contraction groove, a fixing block 21 adapted to, fixed block 21 fixed connection is on the upper portion outer wall of connecting axle 13, kicking block 20 and fixed block 21 are trapezoidal and its hypotenuse is corresponding, one side of kicking block 20 is rotated and is connected with depression bar 22, shrink groove 19 and fixedly connected with pressure handle 23 are worn out to the one end of depression bar 22, be equipped with second spring 24 between the terminal surface of pressure handle 23 and shrink groove 19, second spring 24 cover is established outside depression bar 22, the outer wall symmetry fixedly connected with nose bar 25 of depression bar 22, the outside symmetry of nose bar 25 is equipped with fourth sealing washer 26, fourth sealing washer 26 fixed connection is on the outer wall of depression bar 22, spout 29 that corresponds and the adaptation with nose bar 25 is seted up to the inboard symmetry of tip in shrink groove 19, the one end of spout 29 is equipped with the draw-in groove 27 that links to each other, draw-in groove 27 is seted up on shrink groove 19, draw.

The valve body 1 is sleeved with soundproof cotton 28.

First solid fixed ring 7 fixed connection is inboard at the top of valve body 1, and the solid fixed ring 8 fixed connection of second is inboard at the middle part of valve body 1, and the solid fixed ring 9 fixed connection of third is inboard in the bottom of valve body 1.

The first support frame 10 is fixedly connected to the inner wall of the first fixing ring 7, the second support frame 11 is fixedly connected to the inner wall of the second fixing ring 8, and the third support frame 12 is fixedly connected to the inner wall of the third fixing ring 9.

The connecting shaft 13 penetrates through the first support frame 10, the second support frame 11 and the third support frame 12 at the same time, and the connecting shaft 13 is connected with the inner walls of the first support frame 10, the second support frame 11 and the third support frame 12 in a sliding mode.

The outer wall of the lower portion of the connecting shaft 13 is fixedly connected with a first valve plate 15, the outer wall of the middle portion of the connecting shaft 13 is fixedly connected with a second valve plate 16, the bottom surface of the first valve plate 15 is fixedly connected with a second sealing ring 17, the bottom surface of the second valve plate 16 is fixedly connected with a third sealing ring 18, the first valve plate 15 is arranged above the third fixing ring 9, and the second valve plate 16 is arranged above the second fixing ring 8.

The first spring 14 is arranged between the second support frame 11 and the first valve plate 15, and the first spring 14 is sleeved outside the connecting shaft 13.

The utility model discloses a theory of operation is:

when the valve body 1 is used, the valve body 1 is fixedly connected with a pipeline to be used through the mounting holes 2 on the two sides of the top and the bottom, the groove 3 and the first sealing ring 4 form sealing with an upper pipeline, the convex ring 5 forms sealing with a lower pipeline, when fluid passes through the valve body 1, the fluid impacts the first valve plate 15 firstly, so that the first valve plate 15 drives the connecting shaft 13 to slide upwards in the first support frame 10, the second support frame 11 and the third support frame 12, the connecting shaft 13 drives the second valve plate 16 to ascend, and meanwhile, the first valve plate 15 extrudes the first spring 14, so that the first spring 14 always applies a thrust to the first valve plate 15, at the moment, the fluid flows into the valve body 1 from a gap between the first valve plate 15 and the first fixing ring 7, and meanwhile, the fluid flowing into the valve body 1 continuously flows through a gap between the second valve body and the second fixing ring 8, so that the fluid passes through the valve body 1, when fluid flows back, the fluid flows into the valve body 1 from the top of the valve body 1, the second valve plate 16 is driven to abut against the top surface of the second fixing ring 8 under the impact of the fluid, the third sealing ring 18 seals the second valve plate 16 and the second fixing ring 8, the second valve plate 16 drives the first valve plate 15 to abut against the top surface of the third fixing ring 9 through the connecting shaft 13, the second sealing ring 17 seals the first valve plate 15 and the third fixing ring 9, the first valve plate 15 abuts against the top surface of the third fixing ring 9 under the action of the first spring 14, so that the first valve plate 15 and the third fixing ring 9 are attached more tightly, the second valve plate 16 and the second fixing ring 8 are attached more tightly under the drive of the first valve plate 15 and the connecting shaft 13, the fluid is prevented from flowing back, a check function is formed, when the fluid needs to be cut off in the flowing process of the fluid, at the moment, the pressing handle 23 is pressed, the pressing handle 23 drives the ejector block 20 to extrude the fixing block 21 through the pressing rod 22, the fixing block 21 drives the connecting shaft 13 to slide downwards, the connecting shaft 13 drives the first valve plate 15 and the second valve plate 16 to abut against the second fixing ring 8 and the third fixing ring 9 respectively, the valve body 1 is sealed, a stop function is formed, meanwhile, the pressing rod 22 drives the convex rod 25 to slide towards the valve body 1 along the sliding groove 29, finally, the convex rod 25 slides to the end portion of the sliding groove 29, then the pressing handle 23 is rotated, the pressing handle 23 drives the convex rod 25 to rotate from the sliding groove 29 to enter the clamping groove 27 through the pressing rod 22, the position of the ejector block 20 is limited, the stop state of the valve body 1 is kept, meanwhile, the soundproof cotton 28 on the outer side of the valve body 1 plays a soundproof role all the time in the operation process of the valve body 1, and great noise.

Modifications and variations of the present invention are within the scope of the claims and are not limited by the disclosure of the embodiments.

Claims

1. Flange formula noise elimination check valve, including valve body (1), its characterized in that: the valve body is characterized in that mounting holes (2) which correspond to each other are formed in the top and bottom surfaces of the valve body (1) at equal intervals, a sealing groove (3) is formed in the top surface of the valve body (1), a first sealing ring (4) is arranged in the sealing groove (3), a convex ring (5) is fixedly connected to the bottom surface of the valve body (1), the convex ring (5) corresponds to the sealing groove (3), a non-return structure (6) is arranged in the valve body (1), the non-return structure (6) comprises a first fixing ring (7), a second fixing ring (8), a third fixing ring (9), a first support frame (10), a second support frame (11), a third support frame (12), a connecting shaft (13), a first spring (14), a first valve plate (15), a second valve plate (16), a second sealing ring (17) and a third sealing ring (18), a contraction groove (19) is fixedly connected to one side of the upper portion of the valve body (1), and a top block, a fixed block (21) matched with the ejector block is arranged on the outer side of the ejector block (20), the fixed block (21) is fixedly connected to the outer wall of the upper portion of the connecting shaft (13), the ejector block (20) and the fixed block (21) are both trapezoidal and the bevel edges of the ejector block correspond to each other, one side of the ejector block (20) is rotatably connected with a pressure lever (22), one end of the pressure lever (22) penetrates through the contraction groove (19) and is fixedly connected with a pressure handle (23), a second spring (24) is arranged between the pressure handle (23) and the end face of the contraction groove (19), the second spring (24) is sleeved outside the pressure lever (22), the outer wall of the pressure lever (22) is symmetrically and fixedly connected with a convex rod (25), fourth sealing rings (26) are symmetrically arranged on the outer side of the convex rod (25), the fourth sealing rings (26) are fixedly connected to the outer wall of the pressure lever (22), sliding grooves (29) matched with, one end of the sliding groove (29) is provided with a clamping groove (27) connected with the sliding groove, the clamping groove (27) is arranged on the contraction groove (19), and the clamping groove (27) is matched with the convex rod (25).

2. The flange-type noise-canceling check valve of claim 1, wherein: and sound insulation cotton (28) is sleeved outside the valve body (1).

3. The flange-type noise-canceling check valve of claim 1, wherein: first solid fixed ring (7) fixed connection is inboard at the top of valve body (1), and solid fixed ring (8) fixed connection is inboard at the middle part of valve body (1) for the second, and solid fixed ring (9) fixed connection is inboard in the bottom of valve body (1) for the third.

4. The flange-type noise-canceling check valve of claim 1, wherein: the first support frame (10) is fixedly connected to the inner wall of the first fixing ring (7), the second support frame (11) is fixedly connected to the inner wall of the second fixing ring (8), and the third support frame (12) is fixedly connected to the inner wall of the third fixing ring (9).

5. The flange-type noise-canceling check valve of claim 1, wherein: the connecting shaft (13) penetrates through the first support frame (10), the second support frame (11) and the third support frame (12) simultaneously, and the connecting shaft (13) is connected with the inner walls of the first support frame (10), the second support frame (11) and the third support frame (12) in a sliding mode.

6. The flange-type noise-canceling check valve of claim 1, wherein: the lower part outer wall fixedly connected with first valve plate (15) of connecting axle (13), the middle part outer wall fixedly connected with second valve plate (16) of connecting axle (13), the bottom surface fixedly connected with second sealing washer (17) of first valve plate (15), the bottom surface fixedly connected with third sealing washer (18) of second valve plate (16), establish in the top of the solid fixed ring of third (9) first valve plate (15), establish in the top of the solid fixed ring of second (8) second valve plate (16).

7. The flange-type noise-canceling check valve of claim 1, wherein: the first spring (14) is arranged between the second support frame (11) and the first valve plate (15), and the first spring (14) is sleeved outside the connecting shaft (13).