CN215950485U

CN215950485U - Novel slowly-closed adjustable swing check valve

Info

Publication number: CN215950485U
Application number: CN202121853556.7U
Authority: CN
Inventors: 邵力亭; 邵淳; 周军; 郑小静; 王泓鉴; 何界; 孙河锋; 吕新
Original assignee: Zhejiang Beize Valve Technology Co ltd
Current assignee: Beize Valve Group Co ltd
Priority date: 2021-08-09
Filing date: 2021-08-09
Publication date: 2022-03-04
Anticipated expiration: 2031-08-09

Abstract

A novel slowly-closed adjustable swing check valve comprises a valve body and a valve rod, wherein a valve cavity is arranged in the valve body, a valve seat is arranged in the valve cavity, a valve clack is arranged on the valve seat, a rocker arm is arranged on the valve clack, one end of the valve rod extends into the valve cavity and is connected with the rocker arm and the valve clack, a heavy hammer slowly-closing device is arranged at the end, extending out of the valve cavity, of the valve rod, the heavy hammer slowly-closing device comprises a heavy hammer assembly and a slowly-closing oil cylinder assembly, an adjusting piece is arranged on the slowly-closing oil cylinder assembly and is used for adjusting the damping in the slowly-closing oil cylinder assembly, and the valve has a slowly-closing and slowly-closing function by arranging the heavy hammer slowly-closing device, so that the purpose of effectively eliminating water hammer is achieved; the weight and the weight rod can provide the power-assisted closing effect, so that the closing torque of the valve is increased, the valve is smoothly and stably closed, and the purpose of zero leakage of the valve seal is realized.

Description

Novel slowly-closed adjustable swing check valve

Technical Field

The utility model relates to the technical field of check valves, in particular to a novel slowly-closed adjustable swing check valve.

Background

The swing check valve is also called a check valve or a check valve and is used for preventing media in the pipeline from flowing backwards. The rotary check valve belongs to the automatic valve class, and the opening and closing piece is opened or closed automatically by medium flow and force, and is mainly used on a pipeline for unidirectional medium flow, and only allows the medium to flow in one direction, so as to prevent accidents caused by medium backflow. The structure of the traditional common swing check valve adopts a swing structure with an internal rocker arm, and all opening and closing parts of the valve are arranged in the valve body and do not penetrate through the valve body. The joint of the swing check valve rocker and the valve clack adopts a spherical connection structure, so that the valve clack has certain degree of freedom within a 360-degree range and has proper micro-position compensation. Because the piece that opens and shuts relies on medium flow pressure to open automatically, leans on medium backpressure and valve plate dead weight self-closing, because the process of opening and close is uncontrolled, can not adjust, consequently the water hammer that produces when traditional swing check valve can not eliminate the valve plate and close the effect of breaing the pipeline, and the valve plate quick closure can produce very strong impact to the disk seat, and the damage of the sealed face of aggravation reduces the life of valve.

Disclosure of Invention

In view of this, the present invention provides a novel slowly-closing adjustable swing check valve.

In order to achieve the purpose, the utility model provides the following technical scheme:

the utility model provides a novel slowly close adjustable swing check valve, includes valve body and valve rod, set up the valve pocket in the valve body, set up the disk seat in the valve pocket, be equipped with the valve clack on the disk seat, be equipped with the rocking arm on the valve clack, the one end of valve rod stretches into valve pocket in-connection rocking arm and valve clack, the one end that the valve rod stretches out the valve pocket sets up the weight and slowly closes the device, the weight slowly closes the device and includes weight subassembly and slowly closes the oil cylinder subassembly, set up the regulating part on the slowly closing oil cylinder subassembly, the damping size in the regulating part is used for adjusting slowly closing oil cylinder subassembly.

Preferably, a fixed base is arranged on the outer wall of one side of the valve body, the slow-closing oil cylinder assembly is arranged on the fixed base and comprises an oil cylinder, a piston rod and a piston, the piston is arranged in the oil cylinder, one end of the piston rod extends into the oil cylinder to be connected with the piston, a connecting piece is arranged at one end, far away from the piston, of the piston rod, and the piston rod is connected with one end, extending out of the valve cavity, of the valve rod through the connecting piece.

Preferably, the piston cylinder is provided with a piston connecting portion, the piston is sleeved on the piston connecting portion, the piston connecting portion is arranged at the bottom end of the piston rod, the piston connecting portion is further provided with a sealing limiting part, and the sealing limiting part is used for limiting and sealing the piston on the piston connecting portion.

Preferably, the piston is further provided with a plurality of ring grooves, sealing rings are arranged in the ring grooves, and the sealing rings correspondingly abut against the groove walls of the ring grooves and the inner wall of the oil cylinder.

Preferably, the adjusting part is arranged on one side of the oil cylinder and comprises the adjusting part and communicating pipes arranged on two sides of the adjusting part, and two ends of the communicating pipes on two sides of the adjusting part are correspondingly communicated with the top and the bottom of the adjusting part and the oil cylinder.

The preferred, still set up hydro-cylinder top cap and hydro-cylinder base on the hydro-cylinder, the hydro-cylinder is fixed on the hydro-cylinder base, hydro-cylinder top cap one end stretches into the hydro-cylinder and meets with the hydro-cylinder is sealed, the communicating pipe at regulating part both ends includes first communicating pipe and second communicating pipe, set up top cap intercommunication mouth on the hydro-cylinder top cap, the one end that the hydro-cylinder was kept away from to first communicating pipe stretches into top cap intercommunication mouth and is connected with the hydro-cylinder top cap, just top cap intercommunication mouth both ends intercommunication hydro-cylinder inside and first communicating pipe.

Preferably, a base communicating opening is formed in the oil cylinder base, one end, far away from the oil cylinder, of the second communicating pipe extends into the base communicating opening to be connected with the oil cylinder base, and two ends of the base communicating opening are communicated with the inside of the oil cylinder and the second communicating pipe.

Preferably, the weight assembly comprises a weight and a weight rod, the weight is arranged on the weight rod, a connecting hole is formed in one end, far away from the weight, of the weight rod, and one end, extending out of the valve cavity, of the valve rod extends into the connecting hole and is movably connected with the weight rod.

The utility model has the beneficial effects that: the valve has the slow closing and slow closing function by arranging the heavy hammer slow closing device, so that the aim of effectively eliminating the water hammer is fulfilled; the weight and the weight rod can provide the power-assisted closing effect, so that the closing torque of the valve is increased, the valve is smoothly and stably closed, and the purpose of zero leakage of the valve seal is realized.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a front view of the present invention;

FIG. 2 is a side view of the present invention;

FIG. 3 is a schematic view of the internal structure of the present invention;

fig. 4 is an enlarged view of a portion a of fig. 3.

Reference numerals:

1. the valve comprises a valve body, 2, a valve rod, 3, a valve seat, 4, a valve clack, 5, a rocker arm, 6, a heavy hammer slow-closing device, 7, a heavy hammer component, 8, a slow-closing oil cylinder component, 9, an adjusting component, 10, a fixed base, 11, an oil cylinder, 12, a piston rod, 13, a piston, 14, a connecting component, 15, a valve cavity, 16, an oil cylinder top cover, 17, an oil cylinder base, 18, a first communicating pipe, 19, a second communicating pipe, 20, a top cover communicating port, 21, a base communicating port, 22, a piston connecting part, 23, a sealing limiting part, 24, an annular groove, 25, a sealing ring, 26, a heavy hammer, 27, a heavy hammer rod, 28 and a bolt hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The utility model will be further described with reference to the accompanying drawings.

The utility model provides the following technical scheme:

as shown in the accompanying drawings 1-4, the utility model discloses a novel slowly-closing adjustable swing check valve, which comprises a valve body 1 and a valve rod 2, wherein a valve cavity 15 is arranged in the valve body 1, a valve seat 3 is arranged in the valve cavity 15, a valve clack 4 is arranged on the valve seat 3, a rocker arm 5 is arranged on the valve clack 4, one end of the valve rod 2 extends into the valve cavity 15 to be connected with the rocker arm 5 and the valve clack 4, a heavy hammer slowly-closing device 6 is arranged at one end of the valve rod 2 extending out of the valve cavity 15, the heavy hammer slowly-closing device 6 comprises a heavy hammer component 7 and a slowly-closing oil cylinder component 8, an adjusting component 9 is arranged on the slowly-closing oil cylinder component 8, and the adjusting component 9 is used for adjusting the damping in the slowly-closing oil cylinder component 8. It is specific, through setting up weight slow-closure device 6, make valve clack 4 closing speed slow down, the drawback of striking fast and damaging sealing washer 25 when having eliminated traditional check valve clack 4 and closing, long-time use sealing washer 25 can not damage, valve life extension, make the helping of check valve close and the slow close function combine organically, according to the pressure operational environment that the check valve is different, it is steerable to let the check valve become one kind, the adjustable check valve of opening and closing process, the check valve can be applicable to operational environment by the at utmost, valve work is steady smooth and easy, effectively eliminate water hammer and protection pipeline equipment, valve life is longer, economic benefits has been improved.

Further, set up unable adjustment base 10 on one side outer wall of valve body 1, slowly close cylinder assembly 8 and set up on unable adjustment base 10, slowly close cylinder assembly 8 and include hydro-cylinder 11, piston rod 12 and piston 13, piston 13 sets up in hydro-cylinder 11, piston rod 12 one end is stretched into hydro-cylinder 11 and is connected with piston 13, piston rod 12 keeps away from the one end of piston 13 and sets up connecting piece 14, piston rod 12 is connected through connecting piece 14 and the one end that valve rod 2 stretches out valve pocket 15. Specifically, the adjusting part 9 is arranged on one side of the oil cylinder 11, the adjusting part 9 comprises an adjusting part 9 and communicating pipes arranged on two sides of the adjusting part 9, two ends of the communicating pipes on two sides of the adjusting part 9 are correspondingly communicated with the top and the bottom of the adjusting part 9 and the oil cylinder 11, the oil cylinder 11 is further provided with an oil cylinder top cover 16 and an oil cylinder base 17, the oil cylinder 11 is fixed on the oil cylinder base 17, one end of the oil cylinder top cover 16 extends into the oil cylinder 11 and is connected with the oil cylinder 11 in a sealing manner, the communicating pipes on two ends of the adjusting part 9 comprise a first communicating pipe 18 and a second communicating pipe 19, the oil cylinder top cover 16 is provided with a top cover communicating port 20, one end of the first communicating pipe 18, which is far away from the oil cylinder 11, extends into the top cover communicating port 20 to be connected with the oil cylinder top cover 16, two ends of the top cover communicating port 20 are communicated with the inside of the oil cylinder 11 and the first communicating pipe 18, the oil cylinder base 17 is provided with a base communicating port 21, one end, far away from the oil cylinder 11, of the second communicating pipe 19 extends into the base communicating port 21 to be connected with the oil cylinder base 17, and two ends of the base communicating port 21 are communicated with the inside of the oil cylinder 11 and the second communicating pipe 19. The piston rod 12 and the piston 13 are fixedly connected to reciprocate up and down, and the piston 13 pushes hydraulic oil in the oil cylinder 11 to reciprocate back and forth in the upper cavity and the lower cavity of the cylinder body through the oil pipe and the adjusting piece 9. The adjusting piece 9 can control and adjust the flow of the pipeline, thereby controlling the slow closing speed of the adjusting piece 9 plate and finally achieving the purpose of eliminating the water hammer and protecting the sealing ring 25.

Further, the piston 13 cylinder has a piston connecting portion 22, the piston 13 sleeve is arranged on the piston connecting portion 22, the piston connecting portion 22 is arranged at the bottom end of the piston rod 12, a sealing limiting member 23 is further arranged on the piston connecting portion 22, and the sealing limiting member 23 limits and seals the piston 13 on the piston connecting portion 22.

Further, still set up a plurality of annular 24 on the piston 13, set up sealing washer 25 in the annular 24, sealing washer 25 corresponds the cell wall that supports annular 24 and the inner wall of hydro-cylinder 11.

Furthermore, the weight assembly 7 includes a weight 26 and a weight rod 27, the weight 26 is disposed on the weight rod 27, a connecting hole is disposed at an end of the weight rod 27 far from the weight 26, and an end of the valve rod 2 extending out of the valve cavity 15 extends into the connecting hole to be movably connected with the weight rod 27. Specifically, in this embodiment, the weight rod 27 may further include a plurality of bolt holes 28, the weight 26 is fixed by bolts, and the moment of the weight 26 can be adjusted by adjusting the bolt mounting position of the weight 26. The other end of the connecting piece 14 is connected with a piston rod 12, and the two are connected through a valve rod 2 and can move together.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The utility model provides a novel slowly close adjustable swing check valve, includes valve body and valve rod, set up the valve pocket in the valve body, set up the disk seat in the valve pocket, be equipped with the valve clack on the disk seat, be equipped with the rocking arm on the valve clack, its characterized in that: the valve comprises a valve cavity, a valve rod and a valve rod, wherein one end of the valve rod extends into the valve cavity and is connected with a rocker arm and a valve clack, one end of the valve rod extending out of the valve cavity is provided with a heavy hammer slow-closing device, the heavy hammer slow-closing device comprises a heavy hammer component and a slow-closing oil cylinder component, an adjusting component is arranged on the slow-closing oil cylinder component and is used for adjusting the damping size in the slow-closing oil cylinder component.

2. The novel slow-closing adjustable swing check valve as claimed in claim 1, wherein: set up unable adjustment base on one side outer wall of valve body, slowly close the setting of oil cylinder subassembly on the fixing base, slowly close the oil cylinder subassembly and include hydro-cylinder, piston rod and piston, the piston sets up in the hydro-cylinder, piston rod one end stretches into hydro-cylinder and piston connection, the one end that the piston was kept away from to the piston rod sets up the connecting piece, the piston rod passes through the connecting piece and is connected with the one end that the valve pocket was stretched out to the valve rod.

3. The novel slow-closing adjustable swing check valve as claimed in claim 2, wherein: the piston cylinder is provided with a piston connecting portion, the piston sleeve is arranged on the piston connecting portion, the piston connecting portion is arranged at the bottom end of the piston rod, a sealing limiting part is further arranged on the piston connecting portion, and the sealing limiting part is used for limiting and sealing the piston on the piston connecting portion.

4. The novel slow-closing adjustable swing check valve as claimed in claim 3, wherein: the piston is further provided with a plurality of annular grooves, sealing rings are arranged in the annular grooves, and the sealing rings correspondingly abut against the groove walls of the annular grooves and the inner wall of the oil cylinder.

5. The novel slow-closing adjustable swing check valve as claimed in claim 2, wherein: the adjusting part is arranged on one side of the oil cylinder and comprises the adjusting part and communicating pipes arranged on two sides of the adjusting part, and two ends of the communicating pipes on two sides of the adjusting part are correspondingly communicated with the top and the bottom of the adjusting part and the oil cylinder.

6. The novel slow-closing adjustable swing check valve according to claim 5, characterized in that: still set up hydro-cylinder top cap and hydro-cylinder base on the hydro-cylinder, the hydro-cylinder is fixed on the hydro-cylinder base, hydro-cylinder top cap one end stretches into the hydro-cylinder and meets with the hydro-cylinder is sealed, communicating pipe at regulating part both ends includes first communicating pipe and second communicating pipe, set up top cap intercommunication mouth on the hydro-cylinder top cap, the one end that the hydro-cylinder was kept away from to first communicating pipe stretches into top cap intercommunication mouth and is connected with the hydro-cylinder top cap, just top cap intercommunication mouth both ends intercommunication hydro-cylinder inside and first communicating pipe.

7. The novel slow-closing adjustable swing check valve according to claim 6, characterized in that: the oil cylinder base is provided with a base communicating port, one end, far away from the oil cylinder, of the second communicating pipe extends into the base communicating port to be connected with the oil cylinder base, and two ends of the base communicating port are communicated with the inside of the oil cylinder and the second communicating pipe.

8. The novel slow-closing adjustable swing check valve as claimed in claim 1, wherein: the heavy hammer component comprises a heavy hammer and a heavy hammer rod, the heavy hammer is arranged on the heavy hammer rod, a connecting hole is formed in one end, far away from the heavy hammer, of the heavy hammer rod, and one end, extending out of the valve cavity, of the valve rod extends into the connecting hole and is movably connected with the heavy hammer rod.