CN216590106U

CN216590106U - Stamping welded mute check valve

Info

Publication number: CN216590106U
Application number: CN202220143824.4U
Authority: CN
Inventors: 刘学博
Original assignee: Botou Huaheng Machinery Co ltd
Current assignee: Botou Huaheng Machinery Co ltd
Priority date: 2022-01-17
Filing date: 2022-01-17
Publication date: 2022-05-24
Anticipated expiration: 2032-01-17

Abstract

The utility model discloses a punching press welded silence check valve, including sealing mechanism and sewerage agencies, sewerage agencies's blowdown chamber is located silence check valve below, sealing mechanism's arc closing plate and valve rod phase-match, the inside first spring coupling that evenly sets up of closing plate and first disk seat shifting chute, first disk seat top is equipped with convex first sealing ring, first sealing ring with the first seal groove phase-match at the first seal piece middle part at valve rod top, first seal piece is connected with the sealed piece of second, the second seal groove at the sealed piece middle part of second and the convex second seal ring phase-match in second valve seat bottom. The utility model adopts the above structure a punching press welded silence check valve can in time discharge the inside remaining liquid of silence check valve, simultaneously, improves silence check valve's leakproofness.

Description

Stamping welded mute check valve

Technical Field

The utility model relates to a silence check valve technical field especially relates to a punching press welded silence check valve.

Background

The silent check valve is a valve that automatically opens and closes a valve flap depending on the flow of a medium itself to prevent the backflow of the medium, and is also called a check valve, a back-flow valve, and a back-pressure valve. The check valve is an automatic valve and mainly used for preventing medium from flowing backwards, preventing the pump and a driving motor from reversing and discharging container medium. However, when the conventional silent check valve is closed, the liquid remaining in the silent check valve corrodes the silent check valve, and the sealing property is deteriorated after the silent check valve is used for a long time.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a punching press welded silence check valve can in time discharge the inside remaining liquid of silence check valve, simultaneously, improves silence check valve's leakproofness.

In order to realize the above object, the utility model provides a punching press welded silence check valve, including sealing mechanism and sewage mechanism, sewage mechanism's blowdown chamber is located silence check valve below, sealing mechanism's arc closing plate and valve rod phase-match, the first spring coupling that the closing plate evenly set up with first disk seat shifting chute inside, first disk seat top is equipped with convex first sealing ring, first sealing ring with the first seal groove phase-match at the first sealed piece middle part at valve rod top, first sealed piece is connected with the second sealed piece, the second seal groove at the sealed piece middle part of second and the convex second seal ring phase-match in second valve seat bottom.

Preferably, the upper portion in blowdown chamber is the hourglass hopper-shaped that the diameter from top to bottom reduces gradually, the lower part in blowdown chamber is the cylinder body type, the lower part in blowdown chamber is equipped with rather than assorted sealing valve plate.

Preferably, the first sealing block with be equipped with the cover in the middle of the first sealing ring and establish second spring on the valve rod, first sealing ring with first seal groove all overlaps and is equipped with first sealing washer.

Preferably, the diameter of the second sealing block is smaller than the inner diameter of the mute check valve, and the second sealing ring and the second sealing block are both sleeved with a second sealing ring.

Preferably, the number of the sealing plates is one on one side of the valve rod, the moving groove is located on the inner side of the upper portion of the first valve seat, the sealing plates are matched with the moving groove, and the sealing plates are all sleeved with third sealing elements.

Preferably, the inner side of the first sealing ring is provided with a hairbrush at the contact position with the valve rod, the fixing groove in the middle of the first valve seat is matched with the valve rod, and the bottom of the fixing groove is connected with the side wall of the first valve seat through a fixing rod.

Preferably, the switch handle of the sealing valve plate is positioned outside the silent check valve.

Therefore, the utility model adopts the above structure a punching press welded silence check valve, can in time discharge the inside remaining liquid of silence check valve, simultaneously, improve silence check valve's leakproofness.

The technical solution of the present invention is further described in detail by the accompanying drawings and examples.

Drawings

FIG. 1 is a side sectional view of a stamped and welded silent check valve of the present invention;

fig. 2 is a left side view of the second valve seat of the mute check valve of the present invention.

Reference numerals

1. A mute check valve; 2. a blowdown chamber; 3. a sealing plate; 4. a valve stem; 5. a first valve seat; 6. a first seal ring; 7. a first seal groove; 8. a second seal ring; 9. a second seal groove; 10. a first seal block; 11. a first spring; 12. a moving groove; 13. a second seal block; 14. a second valve seat; 15. fixing grooves; 16. a second spring; 17. a sealing valve plate; 18. and (5) fixing the rod.

Detailed Description

The technical solution of the present invention is further explained by the accompanying drawings and examples.

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by those of ordinary skill in the art to which the invention belongs. The use of "first," "second," and similar terms in the description herein do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

Fig. 1 is the utility model relates to a punching press welded silence check valve side view section-drawing, fig. 2 is the utility model relates to a punching press welded silence check valve second disk seat left side view, as shown in the figure, a punching press welded silence check valve, including sealing mechanism and blowdown mechanism, blowdown mechanism's blowdown chamber 2 is located silence check valve 1 below. The arc-shaped sealing plate 3 of the sealing mechanism is matched with the valve rod 4, and the sealing plate 3 is connected with a first spring 11 uniformly arranged in a moving groove 12 of the first valve seat 5. The top of the first valve seat 5 is provided with a convex first sealing ring 6, and the first sealing ring 6 is matched with a first sealing groove 7 in the middle of a first sealing block 10 at the top of the valve rod 4. The first sealing block 10 is connected with a second sealing block 13, and a second sealing groove 9 in the middle of the second sealing block 13 is matched with a second sealing ring 8 protruding from the bottom of a second valve seat 14. The sealing mechanism is arranged to firstly ensure that the silent check valve 1 is not in a non-opening state and does not leak liquid, secondly ensure that the fixed groove 15 is not filled with liquid when the silent check valve 1 is in an opening state, protect the valve rod 4 and prolong the service life of the valve rod. When the mute check valve 1 is in a closed state, the sewage draining mechanism discharges the residual liquid in the mute check valve 1, so that the residual liquid is prevented from corroding the inside of the mute check valve 1, and the service life of the mute check valve 1 is prolonged. The mute check valve 1 is driven by the liquid medium, and the second sealing block 13 and the first sealing block 10 move towards the first valve seat 5. When the valve rod 4 moves towards the inside of the fixing groove 15, the sealing plate 3 is always kept in close contact with the valve rod 4 under the driving of the first spring 11, so that liquid is prevented from entering the inside of the fixing groove 15 and corroding the fixing groove 15. When the first sealing groove 7 in the middle of the first sealing block 10 is connected with the first sealing ring 6 on the top of the first valve seat 5, the silent check valve 1 is in a fully opened state, at this time, the second spring 16 is located inside the first sealing groove 7, and the valve rod 4 is located inside the fixing groove 15. When the silent check valve 1 is closed, the second sealing groove 9 on the second sealing block 13 is completely connected with the second sealing ring 8 under the driving of the second spring 16 recovering deformation. The setting of shifting chute 12 is convenient for closing plate 3 and first spring 11 finely tune in the valve rod 4 motion process, guarantees closing plate 3 to the sealed of fixed slot 15 inside.

The upper portion in blowdown chamber 2 is the diameter from top to bottom and diminishes gradually lou hopper-shaped, and the lower part in blowdown chamber 2 is the cylinder type, and the lower part in blowdown chamber 2 is equipped with rather than assorted sealing valve plate 17. The blowdown chamber 2 is used for discharging the liquid in the mute check valve 1 in a closed state, and the funnel-shaped upper part facilitates the quick discharge of the liquid. When the liquid is discharged, the seal valve plate 17 is opened. The arrangement of the sealing valve plate 17 ensures the normal use of the sewage discharging cavity 2 and the mute check valve 1.

A second spring 16 sleeved on the valve rod 4 is arranged between the first sealing block 10 and the first sealing ring 6, and the first sealing ring 6 and the first sealing groove 7 are both sleeved with first sealing rings. The second spring 16 is provided to ensure smooth opening and closing of the silent check valve 1. The setting of first sealing washer, when first sealing ring 6 is connected with first seal groove 7, auxiliary seal plate 3 is sealed to fixed slot 15 secondary, avoids valve rod 4 and second spring 16 to receive the corruption with liquid contact for a long time.

The diameter of the second sealing block 13 is smaller than the inner diameter of the mute check valve 1, and the second sealing ring 8 and the second sealing block 13 are both sleeved with a second sealing ring. The diameter of the second sealing block 13 ensures the flow rate of the mute check valve 1 in the open state, and simultaneously ensures the tight connection between the first sealing groove 7 and the first sealing ring 6. The second sealing ring is arranged to ensure that the silent check valve 1 does not leak liquid when in a closed state.

The quantity of closing plate 3 is valve rod 4 one side one, and shifting groove 12 is located first disk seat 5 upper portion inboard, and closing plate 3 and shifting groove 12 phase-match, closing plate 3 all overlap and are equipped with the third seal cover. The sealing effect of the sealing plate 3 on the fixing groove 15 is ensured by the arrangement of the third sealing sleeve. The setting of closing plate 3 quantity when 4 application of force on the valve rod is even, guarantees the sealed effect to fixed slot 15 inside.

The inside of the first sealing ring 6 is provided with a brush at the contact position with the valve rod 4, the fixing groove 15 in the middle of the first valve seat 5 is matched with the valve rod 4, and the bottom of the fixing groove 15 is connected with the side wall of the first valve seat 5 through a fixing rod 18. Due to the arrangement of the hairbrush, the part of the valve rod 4 which contacts with liquid is cleaned, and the inside of the fixing groove 15 is ensured not to be polluted. The length of fixed slot 15 is greater than valve rod 4, and when valve rod 4 can be opened smoothly, its guard action to valve rod 4 is guaranteed. The fixing rod 18 is arranged to ensure the position of the fixing groove 15 to be fixed.

The switch handle of the sealing valve plate 17 is positioned outside the silent check valve 1, so that the sealing valve plate 17 can be opened smoothly.

When the mute check valve 1 is in a closed state, the sealing valve plate 17 is opened to discharge the residual liquid in the mute check valve from the blowdown cavity 2.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the preferred embodiments, those skilled in the art should understand that: the technical solution of the present invention can still be modified or replaced by other equivalent means, and the modified technical solution can not be separated from the spirit and scope of the technical solution of the present invention.

Claims

1. The utility model provides a punching press welded silence check valve which characterized in that: including sealing mechanism and blowdown mechanism, blowdown mechanism's blowdown chamber is located silence check valve below, sealing mechanism's arc closing plate and valve rod phase-match, the first spring coupling that the closing plate evenly set up with first disk seat shift groove inside, first disk seat top is equipped with convex first sealing ring, first sealing ring with the first seal groove phase-match at the first sealed piece middle part at valve rod top, first sealed piece is connected with the sealed piece of second, the second seal groove at the sealed piece middle part of second and the convex second sealing ring phase-match in second disk seat bottom.

2. The stamped and welded silent check valve as claimed in claim 1, wherein: the upper portion in blowdown chamber is the hourglass hopper-shaped that the diameter from top to bottom reduces gradually, the lower part in blowdown chamber is the cylinder type, the lower part in blowdown chamber is equipped with rather than assorted sealing valve plate.

3. The stamped and welded silent check valve as claimed in claim 1, wherein: first seal block with be equipped with the cover between the first sealing ring and establish second spring on the valve rod, first sealing ring with first seal groove all is equipped with first sealing washer.

4. The stamped and welded silent check valve as claimed in claim 1, wherein: the diameter of the second sealing block is smaller than the inner diameter of the mute check valve, and the second sealing ring and the second sealing block are both sleeved with a second sealing ring.

5. The stamped and welded silent check valve as claimed in claim 1, wherein: the quantity of closing plate does one valve rod one side, the shifting chute is located first disk seat upper portion is inboard, the closing plate with the shifting chute matches, the closing plate all is equipped with the third seal cover.

6. The stamped and welded silent check valve as claimed in claim 1, wherein: the first sealing ring inboard with valve rod contact department is equipped with the brush, the fixed slot at first disk seat middle part with the valve rod phase-match, the fixed slot bottom with be connected by the dead lever between the first disk seat lateral wall.

7. The stamped and welded silent check valve as claimed in claim 2, wherein: and the switch handle of the sealing valve plate is positioned outside the mute check valve.