CN211344083U

CN211344083U - Labor-saving gate valve

Info

Publication number: CN211344083U
Application number: CN201921762822.8U
Authority: CN
Inventors: 蒋晓克; 苏为谈; 胡昱堂
Original assignee: Zhejiang Feibike Valve Co ltd
Current assignee: Zhejiang Feibike Valve Co ltd
Priority date: 2019-10-18
Filing date: 2019-10-18
Publication date: 2020-08-25
Anticipated expiration: 2029-10-18

Abstract

The utility model discloses a laborsaving gate valve belongs to the fluid control field, which comprises a valve body, the internal flow channel who is used for the medium circulation that is equipped with of floodgate, install the floodgate core that is used for plugging up flow channel among the flow channel, be connected with the brake lever that passes the floodgate body on the floodgate core, the floodgate core inwards caves in and installs the flashboard towards flow channel's side, is equipped with the roller slot on the inwards sunken side of floodgate core, and the flashboard can reciprocate the contained angle that changes and vertical direction at the roller slot through the gyro wheel, thereby makes the gate valve open the in-process floodgate core and receives and come from the ascending component of fluid, closes the in-process floodgate core and receives and come from the decurrent component of fluid, thereby makes the switching gate valve more laborsaving, has solved prior art, when fluid pressure is great in the gate valve, open and when closed gate valve.

Description

Labor-saving gate valve

Technical Field

The utility model relates to a fluid control device especially relates to a laborsaving gate valve.

Background

The valve is a control part in a fluid conveying system, has the functions of stopping, regulating, guiding, preventing counter flow, stabilizing pressure, shunting or overflowing and relieving pressure and the like, is one of valves, and has the opening and closing part as a flashboard which moves in the direction perpendicular to the fluid direction and can only be fully opened and fully closed but cannot be regulated and throttled.

Because the opening and closing of the gate valve are generally controlled by manpower, when the fluid pressure in the gate valve is high, the pressure on the gate plate is high when the gate valve is opened and closed, and the opening and closing are laborious.

For example, the sealing structure of a gate valve disclosed in the chinese patent document, which is under the publication No. CN200620049363.5 and includes a gate plate and a valve body, has a disadvantage that a force required for opening and closing the gate valve is large due to a pressure of a fluid in the gate body when the gate valve is opened and closed.

SUMMERY OF THE UTILITY MODEL

The utility model relates to an overcome prior art, because the flashboard receives fluidic pressure, lead to the gate valve opening with the great problem of the required power of closed process, provide a laborsaving gate valve, can make the gate valve open with closed in-process more laborsaving.

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

the utility model relates to a laborsaving gate valve, which comprises a valve body, the internal flow channel who is used for the medium circulation that is equipped with of floodgate, install the brake lining that is used for plugging up flow channel among the flow channel, be connected with the brake lever that passes the brake body on the brake lining, the brake lever is gone up and down by hand wheel control, and it has the packings to fill between brake lever and the brake body, and the brake lining is inwards sunken and install the flashboard towards flow channel's side, is equipped with the gyro wheel groove on the inside sunken side of brake lining, the flashboard upper end is equipped with the last gyro wheel that can remove in the gyro wheel groove, and the flashboard lower extreme is equipped with the lower gyro wheel that can remove in the gyro wheel groove, be connected with the rolling control structure of.

When the gate valve needs to be opened, the gate core moves upwards, the upper roller and the lower roller are controlled to move upwards through the control structure, so that the upper end of the gate plate moves towards the outer side of the gate core, the lower end of the gate plate moves towards the inner side of the gate core, and at the moment, when the gate plate is subjected to pressure from fluid in the gate body, the gate core is subjected to an upward component force, so that the gate valve is opened more easily; when the gate valve needs to be closed, the gate core moves downwards, the upper roller and the lower roller move downwards under the control of the control structure, so that the lower end of the gate plate moves towards the inner side of the gate core, the lower end of the gate plate moves towards the outer side of the gate core, and at the moment, when the gate plate receives pressure from fluid in the gate body, the gate core is separated downwards, so that the gate valve is more labor-saving to close.

Preferably, the control structure comprises a top block arranged at the bottom of the brake rod, an upper top rod capable of moving up and down is arranged on the upper side surface of the top block, the upper end of the upper top rod is hinged with the lower end of an upper connecting rod, the upper end of the upper connecting rod is hinged with an upper roller, a lower top rod capable of moving up and down is arranged on the lower side surface of the top block, the lower end of the lower top rod is hinged with the upper end of a lower connecting rod, and the lower end of the lower connecting rod is hinged with a lower roller; when the gate valve needs to be opened, the brake bar drives the brake core to move upwards, the kicking block moves upwards simultaneously, the upper ejector rod is jacked, the upper ejector rod drives the upper roller to move upwards through the upper connecting rod, when the gate valve needs to be closed, the brake bar drives the brake core to move downwards, the kicking block moves downwards simultaneously, the lower ejector rod is pressed down, the lower ejector rod drives the lower roller to move downwards through the lower connecting rod, control over the upper roller and the lower roller is achieved through a simple mechanical structure, labor is saved when the gate valve is opened and closed directly, and additional operation is not needed.

Preferably, the hand wheel is mounted at the upper end of the brake body through a bearing, and the brake rod is in threaded connection with the hand wheel; the hand wheel can rotate more smoothly through the bearing connection.

Preferably, the upper end of the brake body is provided with an oil hole for oiling the bearing; the bearing is oiled at intervals, so that the problem that the hand wheel is difficult to rotate due to the fact that the bearing is clamped can be prevented.

Preferably, the bearing is a self-aligning ball bearing, and the self-aligning ball bearing can bear larger load, so that the bearing is prevented from being damaged due to overlarge pressure intensity of fluid in the brake body.

Preferably, the brake body is divided into an upper brake body, a middle brake body and a lower brake body, the middle brake body is connected with the lower brake body through bolts, a cavity for accommodating the lifted brake core is formed in the middle brake body and the lower brake body, and the brake rod, the brake plate and the brake core can be conveniently replaced by loosening the bolts between the middle brake body and the lower brake body.

Preferably, the material of the brake body, the brake core and the brake plate is CN7M stainless steel, and the brake body, the brake core and the brake plate have the advantages of high strength and rust resistance.

Therefore, the utility model discloses following beneficial effect has: (1) when the gate valve is opened, the gate core is pressed upwards, and when the gate valve is closed, the gate core is pressed downwards, so that the gate valve is opened and closed more easily; (2) the brake rod, the brake plate and the brake core are convenient to replace.

Drawings

Fig. 1 is a cross-sectional view of the present invention.

Fig. 2 is a partial view of a cross-sectional view of the present invention.

Fig. 3 is a front view of the shutter of the present invention.

In the figure: 1. the brake comprises a brake body 2, a flow channel 3, a brake core 4, a brake rod 5, a hand wheel 6, a bearing 7, an oil hole 8, a cavity 9, a brake plate 10, a roller groove 11, an upper roller 12, a lower roller 13, a top block 14, an upper top rod 15, an upper connecting rod 16, a lower top rod 17 and a lower connecting rod.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the detailed description.

The brake comprises a brake body 1, the brake body 1 is divided into an upper brake body, a middle brake body and a lower brake body, a flow channel 2 for medium circulation is arranged in the lower brake body, a brake core 3 for blocking the flow channel is arranged in the flow channel 2, a brake rod 4 penetrating through the brake body is connected onto the brake core 3, the brake rod 4 is controlled to lift by a hand wheel 5, sealing filler is filled between the brake rod 4 and the brake body 1, a bearing 6 is arranged in the upper brake body, the bearing 6 is a self-aligning ball bearing, the hand wheel 5 is arranged on an inner ring of the bearing, an inner thread is arranged in the hand wheel 5, an outer thread is arranged on the brake rod 4 and is in threaded fit with the hand wheel 5, an oil hole 7 is arranged at the bearing of the upper brake body, the upper brake body and the middle brake body are connected through a bolt, the middle brake body and the lower brake body are connected through a bolt, a cavity 8 for accommodating the lifted brake core is formed between the middle brake body and the lower brake body, and the brake The brake comprises a brake plate 9, a brake core is in the shape of a cylinder with two sides recessed inwards, the inwards recessed surface is a spherical surface, a roller groove 10 in the vertical direction is arranged in the middle of the recessed surface, an upper roller 11 capable of rolling in the roller groove 10 is arranged at the upper end of the brake plate 9, a lower roller 12 capable of rolling in the roller groove is arranged at the lower end of the brake plate, the angle of the brake plate 9 in the vertical direction is changed continuously when the upper roller 11 and the lower roller 12 roll in the roller groove, a top block 13 is arranged at the lower end of a brake rod 4, a top block groove is arranged in the brake core 3, the thickness of the top block groove is larger than that of the top block 13, two upper guide holes in the vertical direction are arranged on the upper side surface of the top block groove, upper ejector rods 14 are respectively arranged in the two upper guide holes, the lower ends of the upper ejector rods are contacted with the upper side surface of the top block, the upper ends of the upper ejector rods 14, the upper end of an upper connecting rod 15 is hinged with an upper roller 11, a lower guide hole in the vertical direction is formed in the lower side surface of a top block groove, a lower ejector rod 16 is installed in the lower guide hole, the upper end of the lower ejector rod 16 is contacted with the lower side surface of the top block, the lower end of the lower ejector rod 16 is hinged with a lower connecting rod 17, the upper end of the lower connecting rod 17 is hinged with the lower ejector rod 16, the lower end of the lower connecting rod 17 is hinged with a lower roller 12, a connecting rod groove for enabling the connecting rod to move in a vertical plane is formed in the brake core 3, and the thickness of the connecting rod groove is matched with the diameters of; the material of the brake body 1, the brake core 3 and the brake plate 9 is CN7M stainless steel.

When the gate valve is opened, the gate core moves upwards, the ejector block is in contact with the upper side face of the ejector block groove, so that the upper ejector rod is ejected, the upper ejector rod drives the upper roller to move upwards through the upper connecting rod, the upper end of the gate plate moves towards the outer side of the gate core, meanwhile, the lower roller also moves upwards, and the lower end of the gate plate moves towards the inner side of the gate core.

When the gate valve is closed, the gate core moves downwards, the top block is in contact with the lower side face of the top block groove, the lower ejector rod is pressed down, the lower ejector rod drives the lower roller to move downwards through the lower connecting rod, the lower end of the gate plate moves towards the outer side of the gate core, meanwhile, the upper roller also moves downwards, the upper end of the gate plate moves towards the inner side of the gate core, at the moment, when the gate plate is subjected to pressure from fluid, the pressure can be decomposed into two component forces in the vertical downward direction and the horizontal direction by the inclined direction of the gate plate, the downward component force can help the gate core to move downwards, the gate valve is closed more easily, the component force in the horizontal direction after decomposition is smaller than the original force, the friction force applied when the gate rod moves upwards is reduced, and the gate valve can be opened more easily.

Claims

1. The utility model provides a laborsaving gate valve, includes the floodgate body, the internal flow channel who is used for the medium circulation that is equipped with of floodgate, install the floodgate core that is used for plugging up flow channel in the flow channel, be connected with the brake lever that passes the floodgate body on the floodgate core, the brake lever is gone up and down by hand wheel control, and it has the gland packing to fill between brake lever and the floodgate body, characterized by, the side of floodgate core orientation flow channel is inwards sunken and install the flashboard, is equipped with the gyro wheel groove on the inside sunken side of floodgate core, the flashboard upper end is equipped with the last gyro wheel that can remove in the gyro wheel groove, and the flashboard lower extreme is equipped with the lower gyro wheel that can remove in the gyro wheel groove, be.

2. The labor-saving gate valve as claimed in claim 1, wherein the control structure comprises a top block arranged at the bottom of the gate rod, an upper top rod capable of moving up and down is arranged on the upper side surface of the top block, the upper end of the upper top rod is hinged with the lower end of an upper connecting rod, the upper end of the upper connecting rod is hinged with an upper roller, a lower top rod capable of moving up and down is arranged on the lower side surface of the top block, the lower end of the lower top rod is hinged with the upper end of a lower connecting rod, and the lower end of the lower connecting rod is hinged with a lower.

3. The labor-saving gate valve as claimed in claim 1, wherein the hand wheel is mounted on the upper end of the gate body through a bearing, and the gate rod is in threaded connection with the hand wheel.

4. A labor-saving gate valve as claimed in claim 3, wherein the upper end of the gate body is provided with an oil hole for oiling the bearing.

5. A power saving gate valve as claimed in claim 3 wherein the bearing is a self aligning ball bearing.

6. The labor-saving gate valve as claimed in any one of claims 1 to 5, wherein the gate body is divided into an upper gate body, a middle gate body and a lower gate body, the middle gate body and the lower gate body are connected through bolts, and cavities for accommodating the lifted gate cores are arranged in the middle gate body and the lower gate body.

7. A labor-saving gate valve as claimed in any one of claims 1 to 5, wherein the gate body, the gate core and the gate plate are made of CN7M stainless steel.