CN212055981U

CN212055981U - Waterproof hammer type check valve with good sealing performance

Info

Publication number: CN212055981U
Application number: CN201921834344.7U
Authority: CN
Inventors: 李士涛
Original assignee: Shanghai Runshui Fluid Equipment Co ltd
Current assignee: Shanghai Runshui Fluid Equipment Co ltd
Priority date: 2019-10-29
Filing date: 2019-10-29
Publication date: 2020-12-01
Anticipated expiration: 2029-10-29

Abstract

The utility model discloses a waterproof hammer check valve with good sealing performance, which comprises a valve body, wherein an overhauling cylinder is embedded at the upper side of the valve body, a flange I is fixedly connected on the top end face of the overhauling cylinder, a valve cover is fixed by a flange screw, flanges II are fixedly connected on the end faces of the two sides of the valve body, a pin rod is embedded in the valve body, a swinging plate is sleeved outside the pin rod, one end of the swinging plate, which is far away from the pin rod, is fixedly connected with a valve plate, one side of the valve plate is fixedly connected with a sealing ring, the inner wall of the sealing ring is bonded with a corrugated pad, the waterproof hammer check valve with good sealing performance has the characteristics of reasonable structural design and good sealing performance, when in use, the flow of water flow can drive a screw blade to rotate so as to drive a cross rod and a rack to rotate, the concave-convex structure at the edge of the rack can scrape impurities between the wave crests of the, so that the water flow is reversed.

Description

Waterproof hammer type check valve with good sealing performance

Technical Field

The utility model relates to a waterproof hammer formula check valve, in particular to waterproof hammer formula check valve that leakproofness is good belongs to check valve technical field.

Background

The water hammer is a phenomenon that a pipeline or a container which bears the flowing of steam or water generates sound and vibration due to the impact force generated by the steam or the water suddenly, and the sound and the vibration are generated under the condition that the pipeline is not smooth to flow, so that loud sound and strong vibration are generated, and even equipment is seriously damaged.

The water hammer-proof check valve is a device for dealing with the water hammer effect, but the water hammer-proof check valve has the defect of extremely poor sealing property, and the main reason is that impurities are extremely easy to remain on a sealing surface between a check valve plate and a valve body, so that the problem of untight sealing exists when the check valve plate is closed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a waterproof hammer check valve that leakproofness is good to solve the drawback of the waterproof hammer check valve that proposes in the above-mentioned background art and lie in the leakproofness extremely poor, the leading cause is very easily remaining impurity on the sealed face between check valve plate and the valve body, when leading to the check valve plate to close, has the problem of sealed untight problem.

In order to achieve the above object, the utility model provides a following technical scheme: a waterproof hammer type check valve with good sealing performance comprises a valve body, wherein an overhauling cylinder is embedded at the upper side of the valve body, a first flange is fixedly connected to the top end face of the overhauling cylinder, a valve cover is fixed to a first flange screw, two flanges are fixedly connected to the two side end faces of the valve body, a pin rod is embedded in the valve body, a swinging plate is sleeved on the outer side of the pin rod, a valve plate is fixedly connected to one end, away from the pin rod, of the swinging plate, a sealing ring is fixedly connected to one side of the valve plate and located on the inner wall of the valve body, a corrugated pad is bonded to the inner wall of the sealing ring, a rotating sleeve is arranged in one side of the sealing ring and located in the valve body, two supporting rods are fixedly connected between the rotating sleeve and the inner wall of the valve body, a guide rod is arranged in the rotating sleeve in a sleeved mode, the one end that a limiting plate was kept away from to the guide arm is connected with the steering column, the other end of steering column is connected with the connecting plate, connecting plate fixed connection is in one side of valve plate, the guide arm outer wall just is located two propeller blades of fixedly connected with between steering column and No. two limiting plates, the equal fixedly connected with horizontal pole of propeller blade, one side that propeller blade was kept away from to the horizontal pole all is equipped with the rack, all be equipped with the spring between a limiting plate and No. two limiting plates and the commentaries on classics cover.

Preferably, the guide rod and the connecting plate are hinged with the steering rod.

Preferably, the edge of the valve plate is of a wave-shaped structure, and the swinging plate is rotatably connected with the pin rod.

Preferably, the rotating sleeve is connected with the guide rod in a sliding mode, and the springs are sleeved on the outer side of the guide rod.

Preferably, the corrugated pad is made of rubber materials, and the corrugated pad is of a cylindrical structure.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model relates to a waterproof hammer check valve that leakproofness is good, have the characteristics that structural design is reasonable and the leakproofness is good, during the use, the flow of rivers can drive propeller blade and rotate, and then drive horizontal pole and rack rotation, the concavo-convex structure at rack edge can be cut the impurity between the ripple pad inner wall crest of rubbing to pieces, can avoid the built-in impurity that deposits in the ripple pad, when rivers reverse circulation like this, the tortuous structure at valve plate edge just can tightly cooperate with the ripple pad, form tortuous sealed face, and the setting of spring has the cushioning effect, water hammer effect has effectively been avoided, equipment safety has been ensured.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a sectional view of the structure of the present invention;

fig. 3 is an enlarged view of the structure at a in fig. 2 of the present invention;

fig. 4 is a schematic view of the installation structure of the rotary sleeve of the present invention.

In the figure: 1. a valve body; 2. a maintenance cylinder; 3. a first flange; 4. a valve cover; 5. a second flange; 6. a pin rod; 7. a swinging plate; 8. a valve plate; 9. a support bar; 10. rotating the sleeve; 11. a guide bar; 12. a first limiting plate; 13. a second limiting plate; 14. a spring; 15. a propeller blade; 16. a steering lever; 17. a connecting plate; 18. a cross bar; 19. a rack; 20. a seal ring; 21. a corrugated mat.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a waterproof hammer type check valve with good sealing performance comprises a valve body 1, wherein an overhauling cylinder 2 is embedded at the upper side of the valve body 1, a first flange 3 is fixedly connected to the top end face of the overhauling cylinder 2, a valve cover 4 is fixed to the first flange 3 through screws, second flanges 5 are fixedly connected to the two side end faces of the valve body 1, a pin rod 6 is embedded in the valve body 1, a swinging plate 7 is sleeved outside the pin rod 6, a valve plate 8 is fixedly connected to one end, away from the pin rod 6, of the swinging plate 7, a sealing ring 20 is fixedly connected to one side of the valve plate 8 and positioned on the inner wall of the valve body 1, a corrugated pad 21 is bonded to the inner wall of the sealing ring 20, a rotating sleeve 10 is arranged inside one side of the sealing ring 20 and positioned in the valve body 1, two support rods 9 are fixedly connected between the rotating sleeve 10 and the inner wall of the valve body 1, a guide rod 11 is sleeved inside the rotating, the one end that a limiting plate 12 was kept away from to guide arm 11 is connected with steering column 16, the other end of steering column 16 is connected with connecting plate 17, connecting plate 17 fixed connection is in one side of

valve plate

8, 11 outer walls of guide arm just are located two propeller blades 15 of fixedly connected with between steering column 16 and No. two limiting plates 13, the equal fixedly connected with horizontal pole 18 of propeller blade 15, one side that propeller blade 15 was kept away from to horizontal pole 18 all is equipped with rack 19, all be equipped with spring 14 between limiting plate 12 and No. two limiting plates 13 and the commentaries on classics cover 10.

Wherein, the guide rod 11 and the connecting plate 17 are both hinged with the steering rod 16, so that the steering rod 16 can conveniently adjust the angle.

Wherein, the edge of valve plate 8 is the wave structure, and wobble plate 7 rotates with pin 6 and is connected, and the tortuous structure at valve plate 8 edge can closely cooperate with ripple pad 21.

Wherein, change cover 10 and guide arm 11 sliding connection, spring 14 all overlaps the outside at guide arm 11, and spring 14's setting has the cushioning effect, has effectively avoided the water hammer effect, has ensured equipment safety.

Wherein, ripple pad 21 is made for rubber materials, and ripple pad 21 is the tubular structure, and ripple pad 21 can form the sealed face of tortuous with seal structure cooperation, and is sealed effectual.

Specifically, when the utility model is used, when water flows in the check valve in a forward direction, the water flow impacts the valve plate 8 to jack the valve plate 8, so as to realize water circulation, and the flow of the water flow can drive the propeller blade 15 to rotate, so as to drive the cross rod 18 and the rack 19 to rotate, the concave-convex structure at the edge of the rack 19 can scrape and rub impurities between wave crests on the inner wall of the corrugated pad 21, so that the impurities can circulate along with the water flow, so as to avoid the impurities in the corrugated pad 21, when the water flows in a reverse direction, the valve plate 8 moves towards the sealing ring 20 under the action of gravity and the reverse flow impact, the steering rod 16 pushes the guide rod 11 to retract, the propeller blade 15 and the cross rod 18 move out of the sealing ring 20, then the valve plate 8 blocks the sealing ring 20, the bent structure at the edge of the valve plate 8 can be tightly matched with the corrugated pad 21 to form a bent sealing surface, effectively avoiding the water hammer effect and ensuring the equipment safety.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second", "third", "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, whereby the features defined as "first", "second", "third", "fourth" may explicitly or implicitly include at least one such feature.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The waterproof hammer type check valve with good sealing performance comprises a valve body (1) and is characterized in that an overhauling cylinder (2) is embedded at the upper side of the valve body (1), a first flange (3) is fixedly connected onto the top end face of the overhauling cylinder (2), a valve cover (4) is fixed onto the first flange (3) through screws, two flanges (5) are fixedly connected onto the end faces of the two sides of the valve body (1), a pin rod (6) is embedded into the valve body (1), a swinging plate (7) is sleeved on the outer side of the pin rod (6), a valve plate (8) is fixedly connected onto one end, far away from the pin rod (6), of the swinging plate (7), a sealing ring (20) is fixedly connected onto the inner wall of the valve body (1) on one side of the valve plate (8), a corrugated pad (21) is bonded onto the inner wall of the sealing ring (20), a rotary sleeve (10) is arranged on one side of the sealing ring (20, two support rods (9) are fixedly connected between the rotating sleeve (10) and the inner wall of the valve body (1), the guide rod (11) is arranged on the rotating sleeve (10) in a sleeved mode, a second limiting plate (13) is fixedly sleeved on the outer side of the guide rod (11), a first limiting plate (12) is fixedly connected to one end of the guide rod (11), one end, far away from the first limiting plate (12), of the guide rod (11) is connected with a steering rod (16), the other end of the steering rod (16) is connected with a connecting plate (17), the connecting plate (17) is fixedly connected to one side of the valve plate (8), two propeller blades (15) are fixedly connected to the outer wall of the guide rod (11) and are located between the steering rod (16) and the second limiting plate (13), cross rods (18) are fixedly connected to the propeller blades (15), racks (19) are arranged on one side, far away from the propeller, springs (14) are arranged between the first limiting plate (12), the second limiting plate (13) and the rotary sleeve (10).

2. The waterproof hammer type check valve with good sealing performance as claimed in claim 1, wherein: the guide rod (11) and the connecting plate (17) are hinged with the steering rod (16).

3. The waterproof hammer type check valve with good sealing performance as claimed in claim 1, wherein: the edge of the valve plate (8) is of a wave-shaped structure, and the swinging plate (7) is rotationally connected with the pin rod (6).

4. The waterproof hammer type check valve with good sealing performance as claimed in claim 1, wherein: the rotating sleeve (10) is connected with the guide rod (11) in a sliding mode, and the springs (14) are sleeved on the outer side of the guide rod (11).

5. The waterproof hammer type check valve with good sealing performance as claimed in claim 1, wherein: the corrugated pad (21) is made of rubber materials, and the corrugated pad (21) is of a cylindrical structure.