CN216306743U

CN216306743U - Hydraulic control butterfly valve

Info

Publication number: CN216306743U
Application number: CN202122831733.8U
Authority: CN
Inventors: 孙海珍; 项伟慧; 张中平; 张松; 项建慧
Original assignee: Zhengnan Valve Zhejiang Co ltd
Current assignee: Zhengnan Valve Co ltd
Priority date: 2021-11-16
Filing date: 2021-11-16
Publication date: 2022-04-15
Anticipated expiration: 2031-11-16

Abstract

The utility model relates to the technical field of municipal water prevention and discloses a hydraulic control butterfly valve which comprises a supporting seat, wherein a valve body is fixedly connected to the top of the supporting seat, a baffle is arranged in the valve body, a buffer block is fixedly connected to the front side of the baffle, a buffer cavity is formed in the buffer block, a flow guide mechanism is arranged at the top of the back side of the buffer cavity, the buffer mechanism is arranged near the middle of the top of the back side of the buffer cavity, the flow guide mechanism comprises a first buffer spring, a buffer plate, a connecting rod, a flow guide plate, a fixed block and a second buffer spring, the first buffer spring is fixedly connected to the top of the back side of the buffer cavity, and the buffer plate is fixedly connected to the front end of the front side of the first buffer spring. This liquid accuse butterfly valve, when the guide plate moved backward, made the buffer board drive the buffering post and moved backward, made the buffering disc remove in the dashpot, the fluid business turn over in the inslot was advanced out to damping oil on the buffering disc this moment to increaseed pressure, can carry out water conservancy diversion work to the guide plate, prevent that rivers from leading to the baffle to damage too greatly.

Description

Hydraulic control butterfly valve

Technical Field

The utility model relates to the technical field of municipal water prevention, in particular to a hydraulic control butterfly valve.

Background

The hydraulic control butterfly valve is one of butterfly valves and is divided into a pressure maintaining type, a locking type and an energy storage type. It is suitable for water pump outlet and water turbine inlet pipeline as closed valve and check valve to avoid and reduce medium backflow and produce excessive water hammer in pipeline system to protect pipeline system.

The existing hydraulic control butterfly valve is installed, when water flow is large in rainy days, the baffle on the hydraulic control butterfly valve is impacted due to water flow in the pipeline, and the baffle of the existing hydraulic control butterfly valve is not provided with a buffer mechanism, so that the baffle of the hydraulic control butterfly valve is easy to damage, and improvement needs to be carried out aiming at the problem.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to a hydraulic butterfly valve, which solves the above problems.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a liquid-control butterfly valve, includes the supporting seat, supporting seat top fixedly connected with valve body, be provided with the baffle in the valve body, the positive fixedly connected with buffer block of baffle, set up the cushion chamber in the buffer block, cushion chamber back top is provided with water conservancy diversion mechanism, cushion chamber back top is close to the centre and is provided with buffer gear.

The water conservancy diversion mechanism is including first buffer spring, buffer board, connecting rod, guide plate, fixed block and second buffer spring, first buffer spring fixed connection is in buffer chamber back top, buffer board fixed connection is in first buffer spring positive front end, connecting rod fixed connection is positive in the buffer board, guide plate fixed connection is positive in the connecting rod, fixed block fixed connection is in guide plate top rear end, second buffer spring fixed connection is in the positive middle part of fixed block.

Preferably, cushion column, cushion cylinder, buffering disc and sealing ring, cushion column fixed connection is close to in the middle at the buffer board back top, cushion cylinder fixed connection is close to in the middle at cushion chamber back top, sealing ring fixed connection is in the positive middle part of cushion cylinder, buffering disc fixed connection is in cushion column back rear end.

Preferably, the front inner wall of second buffer spring front end fixed connection buffer block, the positive shape of guide plate is the arc, sets up the guide plate shape into the arc, can guide the rivers of impact on the guide plate.

Preferably, the front surface of the buffer block is close to the outer ring and is annularly provided with a water leakage hole, the buffer cylinder is filled with damping oil, and water in the buffer cavity can be discharged by arranging the water leakage hole.

Preferably, the number of the fixed blocks and the number of the second buffer springs are two, and the two fixed blocks and the two second buffer springs are symmetrically distributed at the top and the bottom of the guide plate.

Preferably, the rear end of the buffer column runs through the middle part of the sealing ring and the front middle part of the buffer cylinder and extends to the fixedly connected buffer disc in the buffer cylinder, and the buffer column is connected with the sealing ring in a sliding manner to prevent the damping oil from losing efficacy due to water inflow in the buffer cylinder.

Preferably, the outer lane of the front of the buffering disc is provided with a fluid inlet and outlet groove, the number of the buffering columns, the buffering cylinders, the buffering disc and the sealing rings is two, and the buffering columns, the buffering cylinders, the buffering disc and the sealing rings are symmetrically distributed on the upper side and the lower side of the back of the guide plate, so that the buffering effect is better.

Compared with the prior art, the utility model provides a hydraulic control butterfly valve, which has the following beneficial effects:

1. this liquid accuse butterfly valve, when the water in the pipeline strikes the baffle, because the positive fixedly connected with buffer block of baffle, rivers strike the guide plate, because the guide plate shape is the arc, can lead the rivers back to can make the device have the water conservancy diversion effect, alleviateed the dynamics of rivers striking.

2. This liquid accuse butterfly valve, when the guide plate moved backward, made the buffer board drive the buffering post and moved backward, made the buffering disc remove in the dashpot, the fluid business turn over in the inslot was advanced out to damping oil on the buffering disc this moment to increaseed pressure, can carry out water conservancy diversion work to the guide plate, prevent that rivers from leading to the baffle to damage too greatly.

Drawings

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

FIG. 2 is a schematic diagram of a cross-sectional left view of a buffer block according to the present invention;

FIG. 3 is an enlarged view of the structure at A in FIG. 2;

fig. 4 is an enlarged schematic view of B in fig. 2.

In the figure: 1. a supporting seat; 2. a valve body; 3. a buffer block; 4. a buffer chamber; 5. a flow guide mechanism; 501. a first buffer spring; 502. a buffer plate; 503. a connecting rod; 504. a baffle; 505. a fixed block; 506. a second buffer spring; 6. a buffer mechanism; 601. a buffer column; 602. a cushion cylinder; 603. a buffer disc; 604. a seal ring; 7. and a baffle plate.

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.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Referring to fig. 1-4, the present invention provides a technical solution: a hydraulic control butterfly valve comprises a supporting seat 1, wherein a valve body 2 is fixedly connected to the top of the supporting seat 1, a baffle 7 is arranged in the valve body 2, a buffer block 3 is fixedly connected to the front of the baffle 7, a buffer cavity 4 is formed in the buffer block 3, a flow guide mechanism 5 is arranged at the top of the back of the buffer cavity 4, a buffer mechanism 6 is arranged near the middle of the top of the back of the buffer cavity 4, a buffer column 601, a buffer cylinder 602, a buffer disc 603 and a sealing ring 604 are arranged, the buffer column 601 is fixedly connected to the top of the back of the buffer plate 502 near the middle, the buffer cylinder 602 is fixedly connected to the top of the back of the buffer cavity 4 near the middle, the sealing ring 604 is fixedly connected to the middle of the front of the buffer cylinder 602, the buffer disc 603 is fixedly connected to the back of the buffer column 601, the rear end of the buffer column 601 penetrates through the middle of the sealing ring 604 and the middle of the front of the buffer cylinder 602 and extends into the buffer disc 603 fixedly connected to the inside of the buffer cylinder 602, and the buffer column 601 is slidably connected to the sealing ring 604, prevent into water and lead to the damping oil inefficacy in the cushion cylinder 602, buffer disc 603 has seted up fluid business turn over groove in the positive outer lane, buffer column 601, buffer cylinder 602, buffer disc 603 and sealing ring 604 quantity are two, two buffer column 601, buffer cylinder 602, both sides about buffer disc 603 and sealing ring 604 symmetric distribution are at the guide plate 504 back, can make the buffering effect better, when guide plate 504 moves backward, make buffer plate 502 drive buffer column 601 remove backward, make buffer disc 603 remove in buffer cylinder 602, the fluid business turn over of damping oil on buffer disc 603 this moment goes into the inslot of business turn over, thereby pressure has been strengthened, can carry out the water conservancy diversion work to guide plate 504, prevent that rivers from too big to guide plate 504 striking and lead to baffle 7 to damage.

The flow guide mechanism 5 comprises a first buffer spring 501, a buffer plate 502, a connecting rod 503, a flow guide plate 504, a fixed block 505 and a second buffer spring 506, the first buffer spring 501 is fixedly connected to the top of the back of the buffer cavity 4, the buffer plate 502 is fixedly connected to the front end of the front of the first buffer spring 501, the connecting rod 503 is fixedly connected to the front of the buffer plate 502, the flow guide plate 504 is fixedly connected to the front of the connecting rod 503, the fixed block 505 is fixedly connected to the rear end of the top of the flow guide plate 504, the second buffer spring 506 is fixedly connected to the middle of the front of the fixed block 505, the front of the second buffer spring 506 is fixedly connected to the inner wall of the front of the buffer block 3, the front of the flow guide plate 504 is arc-shaped, the flow impacting on the flow guide plate 504 can be guided by setting the shape of the flow guide plate 504 to be arc-shaped, the front of the buffer block 3 is annularly provided with a water leakage hole near the outer ring, the buffer cylinder 602 is filled with damping oil, and is provided with the water leakage hole, can be to the water discharge in the cushion chamber 4, fixed block 505 and second buffer spring 506 quantity are two, two fixed blocks 505 and second buffer spring 506 symmetric distribution are in guide plate 504 top and bottom, when water in the pipeline strikes baffle 7, because baffle 7 front fixedly connected with buffer block 3, rivers strike guide plate 504, because guide plate 504 shape is the arc, can lead the rivers back, thereby can make the device have the water conservancy diversion effect, the dynamics of rivers striking has been alleviateed.

In actual operation, when the device is in use, when water in the pipe impacts the baffle 7, because the front surface of the baffle 7 is fixedly connected with the buffer block 3, the flow guide plate 504 is impacted by water flow, because the guide plate 504 is arc-shaped, the water flow can be guided back, so that the device has a flow guiding effect, the impact force of the water flow is reduced, at the moment, the second buffer spring 506 contracts to drive the guide plate 504 to move backwards, when moving, the connecting rod 503 on the back of the guide plate 504 drives the buffer plate 502 to move backward, so that the first buffer spring 501 contracts backward, thereby leading the buffer plate 502 to drive the buffer column 601 to move backwards, leading the buffer disc 603 to move in the buffer cylinder 602, leading the damping oil to enter and exit in the oil liquid inlet and outlet groove on the buffer disc 603, thereby pressure has been strengthened, can carry out the water conservancy diversion work to guide plate 504, prevent that rivers are too big to guide plate 504 striking lead to baffle 7 to damage.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. The term "comprising", without further limitation, means that the element so defined is not excluded from the group consisting of additional identical elements in the process, method, article, or apparatus that comprises the element.

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 utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a liquid accuse butterfly valve, includes supporting seat (1), its characterized in that: the top of the supporting seat (1) is fixedly connected with a valve body (2), a baffle (7) is arranged in the valve body (2), the front of the baffle (7) is fixedly connected with a buffer block (3), a buffer cavity (4) is formed in the buffer block (3), the top of the back of the buffer cavity (4) is provided with a flow guide mechanism (5), and the top of the back of the buffer cavity (4) is provided with a buffer mechanism (6) close to the middle; flow guide mechanism (5) is including first buffer spring (501), buffer board (502), connecting rod (503), guide plate (504), fixed block (505) and second buffer spring (506), first buffer spring (501) fixed connection is in cushion chamber (4) back top, buffer board (502) fixed connection is in first buffer spring (501) front end, connecting rod (503) fixed connection is positive in buffer board (502), guide plate (504) fixed connection is positive in connecting rod (503), fixed block (505) fixed connection is in guide plate (504) top rear end, second buffer spring (506) fixed connection is in fixed block (505) front middle part.

2. The hydraulically controlled butterfly valve of claim 1, wherein: buffer gear (6) are including buffering post (601), cushion cylinder (602), buffering disc (603) and sealing ring (604), cushion post (601) fixed connection is close to the centre in buffer board (502) back top, cushion cylinder (602) fixed connection is close to the centre in cushion chamber (4) back top, sealing ring (604) fixed connection is in the middle part of cushion cylinder (602) front, buffering disc (603) fixed connection is in buffering post (601) back rear end.

3. The hydraulically controlled butterfly valve of claim 2, wherein: the front end of the second buffer spring (506) is fixedly connected with the inner wall of the front surface of the buffer block (3), and the front surface of the guide plate (504) is arc-shaped.

4. A liquid control butterfly valve according to claim 3, wherein: the front surface of the buffer block (3) is close to the outer ring and is annularly provided with water leakage holes, and the buffer cylinder (602) is filled with damping oil.

5. The hydraulically controlled butterfly valve of claim 4, wherein: the number of the fixed blocks (505) and the number of the second buffer springs (506) are two, and the two fixed blocks (505) and the two second buffer springs (506) are symmetrically distributed at the top and the bottom of the guide plate (504).

6. The hydraulically controlled butterfly valve of claim 5, wherein: the rear end of the buffer column (601) penetrates through the middle of the sealing ring (604) and the front middle of the buffer cylinder (602) and extends to the buffer disc (603) fixedly connected in the buffer cylinder (602), and the buffer column (601) is connected with the sealing ring (604) in a sliding mode.

7. The hydraulically controlled butterfly valve of claim 6, wherein: buffer disc (603) front outer lane has been seted up fluid and has been advanced out of the groove, buffer column (601), buffer cylinder (602), buffer disc (603) and sealing ring (604) quantity are two both sides about buffer column (601), buffer cylinder (602), buffer disc (603) and sealing ring (604) symmetric distribution are in guide plate (504) back.