CN213117558U - Improved flange gate valve - Google Patents

Abstract

The utility model discloses an improved flanged gate valve, which comprises a valve body, a fixed seat is fixedly connected with the middle position of the top of the valve body, a mounting seat is fixedly arranged at the top of the fixed seat, a valve rod is connected with the top of the mounting seat by screw threads, one end of the valve rod is rotatably connected with a valve plate, two sides of the valve plate are slidably connected with symmetrically distributed movable pipes, the bottom of the movable pipe is fixedly connected with fixed pipes, one side of two groups of fixed pipes, which is far away from each other, is provided with pressure relief holes, when the valve body is disconnected, two sides inside the valve body are easy to generate pressure difference, a medium enters the bottom of the movable pipe through a water inlet hole, when the pressure reaches a certain value, the medium pushes the movable pipe to move upwards, so that a water outlet and a connecting hole are positioned on the same straight line, the medium enters the movable pipe, the realization has improved the life of flanged gate valve to flanged gate valve's pressure release.

Description

Improved flange gate valve

Technical Field

The utility model relates to a flanged gate valve field especially relates to a flanged gate valve of improved generation.

Background

Flanged gate valves are gate valves with a flange connection, which is the most common. The flange gate valve is stable and reliable when used in a pipeline, so the flange gate valve is often adopted on a high-pressure pipeline.

This application improves under prior art, and among the prior art, current flange gate valve is when using, and the inside both sides of valve body produce the pressure difference easily, cause the injury to the valve body easily, influence the life of valve body.

Disclosure of Invention

The utility model aims at solving the defects existing in the prior art and providing an improved flanged gate valve.

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

the utility model provides an improved generation's flanged gate valve, includes the valve body, valve body top intermediate position fixedly connected with fixing base, there is the mount pad fixing base at the fixing base top through bolt fixed mounting, mount pad top threaded connection has the valve rod, the one end that the valve rod stretched into the fixing base is rotated and is connected with the valve plate, valve plate bottom butt have with valve body bottom inner wall fixed connection's installation piece, valve plate both sides sliding connection has the expansion pipe of symmetric distribution, and expansion pipe and installation piece sliding connection, the fixed pipe of expansion pipe bottom fixedly connected with, two sets of the pressure release hole has all been seted up to one side that fixed pipe kept away from each other, the inlet opening of symmetric distribution is seted up to installation piece both sides.

As a further description of the above technical solution: the spout of symmetric distribution is seted up to the both sides of valve plate, spout inner wall and activity pipe sliding connection, the activity pipe is hollow structure, and is two sets of the delivery port has all been seted up to one side that the activity pipe kept away from each other, activity pipe top fixedly connected with and spout top inner wall fixed connection's folding pipe, folding intraductal be provided with activity pipe fixed connection's spring, and the spring other end and spout top fixed connection.

As a further description of the above technical solution: the valve plate both sides are seted up the connecting hole of symmetric distribution, and connecting hole is located the top of delivery port under the initial condition.

As a further description of the above technical solution: the fixed seat is characterized in that two sides of the fixed seat are provided with symmetrically distributed drain holes, the outer parts of two sides of the valve plate are fixedly sleeved with fixed blocks, the bottom of each fixed block is fixedly connected with a fixed ring, and one end, extending into the valve body, of each fixed ring is abutted with a sealing ring fixedly mounted with the valve body.

As a further description of the above technical solution: the mounting groove has been seted up at the installation piece top, and is two sets of be equipped with between the movable tube with valve plate bottom fixed connection's sealed piece, sealed piece bottom fixed mounting has sealed the pad, sealed piece and mounting groove looks adaptation.

The utility model discloses following beneficial effect has:

1. the utility model discloses in during the use, the rotation valve rod makes the valve rod rotate and rebound and then drives the valve plate rebound for the inside intercommunication state that is in of valve body, medium through the circulation in the valve body this moment, when closing the gate, reverse rotation valve rod makes the valve rod rebound and drives the valve plate rebound, in the sealed piece of valve plate bottom got into the mounting groove at installation piece top, in the valve plate drove the solid fixed ring entering valve body of fixed block bottom simultaneously, make the inside intercommunication disconnection of valve body, realize sealedly.

2. The utility model discloses in when the disconnection, the inside both sides of valve body produce the pressure difference easily, at this moment, the medium gets into movable bottom of the tube portion through the inlet opening, when pressure reaches a definite value, the medium promotes the movable tube rebound, make delivery port on the movable tube and connecting hole on the valve plate be located same straight line, the medium gets into in the movable tube after the pressure release hole on the fixed pipe gets into simultaneously, and in delivery port and connecting hole discharge fixing base, later through the wash port discharge, realize the regulation to the inside both sides pressure of valve body, realize the pressure release to flange gate valve, the life of flange gate valve has been improved.

Drawings

Fig. 1 is a schematic structural view of an improved flanged gate valve provided by the present invention;

fig. 2 is an enlarged schematic structural view of a point a in fig. 1 according to the present invention;

fig. 3 is an enlarged schematic structural view of the position B in fig. 1 according to the present invention;

fig. 4 is an enlarged schematic structural diagram of the present invention at C of fig. 1.

Illustration of the drawings:

1-valve body, 2-fixed seat, 3-mounting seat, 4-valve rod, 5-valve plate, 6-movable tube, 7-folding tube, 8-water outlet, 9-fixed block, 10-fixed ring, 11-water outlet, 12-fixed tube, 13-pressure relief hole, 14-mounting block, 15-water inlet, 16-sealing block and 17-sealing pad.

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.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", 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 simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-4, the utility model provides an improved flanged gate valve, including valve body 1, the middle position fixedly connected with fixing base 2 at the top of valve body 1, fixing base 2 top is installed with mount pad 3 through the bolt is fixed, mount pad 3 top threaded connection has valve rod 4, the one end that valve rod 4 stretches into fixing base 2 is rotated and is connected with valve plate 5, the bottom of valve plate 5 is butted with mounting block 14 fixedly connected with the bottom inner wall of valve body 1, valve plate 5 both sides sliding connection has symmetrically distributed movable pipe 6, and movable pipe 6 and mounting block 14 sliding connection, movable pipe 6 bottom fixedly connected with fixed pipe 12, the pressure relief hole 13 has all been seted up to one side that two sets of fixed pipe 12 kept away from each other, mounting block 14 both sides are seted up symmetrically distributed inlet opening 15;

referring to fig. 1 and 2, in the application, sliding grooves are symmetrically formed in two sides of a valve plate 5, the inner walls of the sliding grooves are connected with movable pipes 6 in a sliding mode, the movable pipes 6 are of a hollow structure, water outlets 8 are formed in the sides, away from each other, of the two groups of movable pipes 6, the tops of the movable pipes 6 are fixedly connected with folding pipes 7 fixedly connected with the inner walls of the tops of the sliding grooves, springs fixedly connected with the movable pipes 6 are arranged in the folding pipes 7, the other ends of the springs are fixedly connected with the tops of the sliding grooves, and the folding pipes 7 protect the springs and prevent the springs from being damaged due to;

referring to fig. 2, in the present application, connecting holes are symmetrically distributed on both sides of the valve plate 5, and the connecting holes are located above the water outlet 8 in an initial state;

referring to fig. 1-3, in the present application, two sides of a fixing seat 2 are provided with symmetrically distributed drain holes 11, two sides of a valve plate 5 are externally and fixedly sleeved with fixing blocks 9, the bottom of each fixing block 9 is fixedly connected with a fixing ring 10, and one end of each fixing ring 10 extending into a valve body 1 is abutted with a sealing ring fixedly mounted with the valve body 1;

referring to fig. 3, in this application, the mounting groove has been seted up at mounting block 14 top, be equipped with between two sets of movable tubes 6 with valve plate 5 bottom fixed connection's sealed piece 16, sealed piece 16 bottom fixed mounting has sealed the pad 17, sealed piece 16 and mounting groove looks adaptation.

The working principle is as follows:

in the application, when the valve is used, the valve rod 4 is rotated to enable the valve rod 4 to rotate and move upwards so as to drive the valve plate 5 to move upwards, the interior of the valve body 1 is in a communicated state, at the moment, a medium circulates in the valve body 1, when the gate is closed, the valve rod 4 is rotated reversely to enable the valve rod 4 to move downwards and drive the valve plate 5 to move downwards, the sealing block 16 at the bottom of the valve plate 5 enters the mounting groove at the top of the mounting block 14, and meanwhile, the valve plate 5 drives the fixing ring 10 at the bottom of the fixing block 9 to enter the valve body 1, so that the communication in the valve;

in this application, when the disconnection, 1 inside both sides of valve body produce the pressure difference easily, at this moment, the medium gets into movable pipe 6 bottom through inlet opening 15, when pressure reaches a definite value, medium promotion movable pipe 6 rebound, make delivery port 8 on the movable pipe 6 and the connecting hole on the valve plate 5 be located same straight line, the medium gets into in the movable pipe 6 after the pressure release hole 13 on the fixed pipe 12 gets into simultaneously, and in delivery port 8 and the connecting hole discharge fixing base 2, later discharge through wash port 11, realize the regulation to 1 inside both sides pressure of valve body, realize the pressure release to the flange gate valve, the life of flange gate valve has been improved.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims (5)

1. The utility model provides a flanged gate valve of modified form, includes valve body (1), its characterized in that: valve body (1) top intermediate position fixedly connected with fixing base (2), there is mount pad (3) at fixing base (2) top through bolt fixed mounting, mount pad (3) top threaded connection has valve rod (4), the one end that valve rod (4) stretched into fixing base (2) is rotated and is connected with valve plate (5), valve plate (5) bottom butt joint have with valve body (1) bottom inner wall fixed connection's installation piece (14), valve plate (5) both sides sliding connection has the movable pipe (6) of symmetric distribution, and movable pipe (6) and installation piece (14) sliding connection, the fixed pipe (12) of movable pipe (6) bottom fixedly connected with, two sets of pressure release hole (13) have all been seted up to one side of keeping away from each other of fixed pipe (12), the inlet opening (15) of symmetric distribution are seted up to installation piece (14) both sides.

2. An improved flanged gate valve according to claim 1, wherein: the spout of symmetric distribution is seted up to the both sides of valve plate (5), spout inner wall and activity pipe (6) sliding connection, activity pipe (6) are hollow structure, and are two sets of delivery port (8) have all been seted up to one side that activity pipe (6) kept away from each other, activity pipe (6) top fixedly connected with and spout top inner wall fixed connection's folding pipe (7), be provided with in folding pipe (7) with activity pipe (6) fixed connection's spring, and the spring other end and spout top fixed connection.

3. An improved flanged gate valve according to claim 1, wherein: and connecting holes which are symmetrically distributed are formed in two sides of the valve plate (5), and the connecting holes are positioned above the water outlet (8) in an initial state.

4. An improved flanged gate valve according to claim 1, wherein: the water discharging holes (11) which are symmetrically distributed are formed in two sides of the fixing seat (2), the fixing blocks (9) are sleeved on the outer portions of two sides of the valve plate (5), the fixing ring (10) is fixedly connected to the bottom of each fixing block (9), and the sealing ring fixedly mounted with the valve body (1) is abutted to one end, extending into the valve body (1), of each fixing ring (10).

5. An improved flanged gate valve according to claim 1, wherein: the mounting groove has been seted up at installation piece (14) top, and is two sets of be equipped with between activity pipe (6) with valve plate (5) bottom fixed connection's sealed piece (16), sealed piece (16) bottom fixed mounting has sealed pad (17), sealed piece (16) and mounting groove looks adaptation.

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