CN212616397U

CN212616397U - Expansion sealing flat gate valve

Info

Publication number: CN212616397U
Application number: CN202020694192.1U
Authority: CN
Inventors: 白国伟; 卞红飞; 苏磊
Original assignee: Wuxi Boniu Control Valve Co ltd; Hulunbeier Jinxin Chemical Co ltd
Current assignee: Wuxi Boniu Control Valve Co ltd; Hulunbeier Jinxin Chemical Co ltd
Priority date: 2020-04-29
Filing date: 2020-04-29
Publication date: 2021-02-26
Anticipated expiration: 2030-04-29

Abstract

The utility model relates to an inflation sealing plate valve, which comprises a valve body, it has flashboard passageway and medium channel to open in the valve body, slidable mounting flashboard in the flashboard passageway, the flashboard includes auxiliary flashboard and main flashboard, the valve rod is connected on main flashboard upper portion, the auxiliary flashboard with the main flashboard adopts V type contact surface structure cooperation, the auxiliary flashboard with set up canceling release mechanical system between the main flashboard, the disk seat with set up the sealing ring between the flashboard, the disk seat periphery with set up O type circle between the valve body. The utility model discloses, simple structure adopts V type scarf contact design, no matter can both guarantee the laminating of great area between double brake plates when the valve is closed or is opened, and the atress is even when the valve rod is used.

Description

Expansion sealing flat gate valve

Technical Field

The utility model belongs to the technical field of the valve, a sealed plate valve of inflation is related to.

Background

The flat gate valve is one of the widely used valve varieties, and is a sliding valve with a closing member being a parallel gate plate. The closing member can be a single gate or a double gate with a spreader mechanism in between. The pressing force of the shutter against the valve seat is controlled by the pressure of the medium acting on the floating shutter or the floating valve seat. The valve seat adopts an O-shaped sealing ring for sealing and a floating valve seat structure for applying pretightening force, so that the inlet and the outlet of the flat gate valve are sealed in two directions, and the opening and closing moment of the structure is smaller than that of a common valve, so that the valve can be loosened and closed slightly. If the gate valve is a double-gate plate flat gate valve, the expansion structure between the two gate plates can supplement pressing force again, and sealing can be better realized. However, this construction has the disadvantage that the valve is open and the shutter is prone to jamming.

Disclosure of Invention

An object of the utility model is to provide an inflation sealing plate valve can solve foretell problem, and can play the valve and play the effect that the moment of force is littleer, sealing performance is better.

According to the utility model provides a technical scheme: the utility model provides an inflation sealing plate valve, includes the valve body, it has flashboard passageway and medium channel to open in the valve body, slidable mounting flashboard in the flashboard passageway, the flashboard includes auxiliary flashboard and main flashboard, the valve rod is connected on main flashboard upper portion, the auxiliary flashboard with the main flashboard adopts V type contact surface structure cooperation, the auxiliary flashboard with set up canceling release mechanical system between the main flashboard, the disk seat with set up the sealing ring between the flashboard, the disk seat periphery with set up O type circle between the valve body.

As a further improvement of the present invention, the medium channel is horizontally disposed, the gate channel is vertically disposed, the gate channel is staggered with the medium channel, and the gate channel is mounted on the valve seat at the staggered position of the medium channel.

As a further improvement of the utility model, the circumference has the seal ring groove in the disk seat, seal ring part clamps in the seal ring groove.

As a further improvement, the valve seat periphery is opened with O type circle seal groove, O type circle part clamps in the O type circle seal groove.

As a further improvement of the utility model, the canceling release mechanical system includes the round pin that resets, the auxiliary flashboard with the main flashboard side is all installed the round pin that resets, connect reset element between the round pin that resets.

As a further improvement of the present invention, the reset element is an elastic reset rod.

The utility model discloses an actively advance the effect and lie in:

the utility model has simple structure, adopts the design of V-shaped wedge surface contact, can ensure the large-area laminating between the double brake plates no matter when the valve is closed or opened, and has even stress when the valve rod acts; the V-shaped wedge surfaces can realize the functions of quick separation and attachment, the expansion effect is achieved by the expansion of the double gate plates during separation, the larger the moment is, the better the sealing effect is, and the closing function of the valve is realized; the valve is reset quickly during fitting, and the opening function of the valve is realized; the double valve plates are connected through the positioning pins and the reset rods, the double valve plates are fixed and reset, and the quick reset function between the valve plates can be realized when the valve is opened.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Detailed Description

The following description will further describe embodiments of the present invention with reference to the accompanying drawings.

In fig. 1, the valve includes a valve body 1, an auxiliary gate plate 2, a main gate plate 3, an O-ring 4, a seal ring 5, an elastic return rod 6, a return pin 7, a valve seat 8, a guide plate 9, a stopper plate 10, a valve rod 11, and the like.

As shown in figure 1, the utility model relates to an expansion sealing plate gate valve, which comprises a valve body 1, a gate plate channel and a medium channel are arranged in the valve body 1, the medium channel is transversely arranged in the embodiment, the gate plate channel is vertically arranged, the gate plate channel and the medium channel are staggered, a valve seat 8 is arranged at the staggered position, a gate plate is slidably arranged in the gate plate channel, the gate plate comprises an auxiliary gate plate 2 and a main gate plate 3, the upper part of the main gate plate 3 is connected with a valve rod 11, the auxiliary gate plate 2 and the main gate plate 3 are matched in a V-shaped contact surface structure in the moving direction in the valve body 1, reset pins 7 are respectively arranged on the side surfaces of the auxiliary gate plate 2 and the main gate plate 3, a reset element is connected between the reset pins 7, a sealing ring groove is arranged on the inner periphery of the valve seat 8, a sealing ring 5 is arranged between the valve seat 8 and the gate plate, part of, the O-ring 4 is partially clamped in the O-ring sealing groove.

A limiting plate 10 is arranged in the valve body 1, and a limiting boss is arranged on the auxiliary flashboard 2.

A guide plate 9 is installed in the valve body 1, and the guide plate 9 is located between the valve seat 8 and the limiting plate 10 and guides movement of the flashboard.

In this embodiment the return element is a resilient return arm 6.

The working process of the utility model is as follows:

when the main flashboard 3 and the auxiliary flashboard 2 are installed, the V-shaped wedge surfaces are attached, and the main flashboard 3 and the auxiliary flashboard 2 are locked through the elastic reset rod 7 and the reset pin 6. In the closing process of the valve, the valve rod 11 pushes the main gate plate 3 to move downwards, and the main gate plate 3 drives the auxiliary gate plate 2 to move downwards through the V-shaped contact surface. At the very first time of closing, because the sub-flashboard 2 is equipped with spacing boss, the sub-flashboard 2 stops rapidly to move down with limiting plate 10 contact back, and main flashboard 3 can easily continue to move down because the valve rod 11 effect this moment, and the V type contact surface design that the double-gate board adopted, main flashboard 3 can easily continue to move under the valve rod 11 moment effect, separates with sub-flashboard 2 to move simultaneously at horizontal direction and vertical direction, form the expansion effect between the double-gate board. At this moment, the sealing surfaces of the main flashboard 3 and the auxiliary flashboard 2 and the sealing ring 5 form a sealing effect, the larger the valve moment is, the better the expansion effect is, and the better the sealing effect is. When the valve is opened, promote main flashboard 3 under the valve rod 11 effect, main flashboard 3 resets rapidly under the pulling force effect of release link 6 this moment and vice flashboard 2 contacts, avoids the dead phenomenon of card of flashboard and flashboard passageway, and main flashboard 3 drives vice flashboard 2 and continues to remove after two V profile are full to contact to realize the valve and open the function.

Claims

1. An expansion seal flat gate valve which characterized in that: the gate valve includes valve body (1), it has flashboard passageway and medium channel to open in valve body (1), slidable mounting flashboard in the flashboard passageway, the flashboard includes sub-flashboard (2) and main flashboard (3), valve rod (11) are connected on main flashboard (3) upper portion, sub-flashboard (2) with main flashboard (3) adopt V type contact surface structure cooperation, sub-flashboard (2) with set up canceling release mechanical system between main flashboard (3), disk seat (8) with set up sealing ring (5) between the flashboard, disk seat (8) periphery with set up O type circle (4) between valve body (1).

2. The expanding seal plate gate valve of claim 1, wherein: the medium passageway is horizontal setting, the flashboard passageway is vertical setting, the flashboard passageway with the medium passageway is crisscross, the flashboard passageway with medium passageway crossing department installation disk seat (8).

3. The expanding seal plate gate valve of claim 2, wherein: the inner periphery of the valve seat (8) is provided with a sealing ring groove, and part of the sealing ring (5) is clamped in the sealing ring groove.

4. The expanding seal plate gate valve of claim 2, wherein: an O-shaped ring sealing groove is formed in the periphery of the valve seat (8), and the O-shaped ring (4) is clamped in the O-shaped ring sealing groove.

5. The expanding seal plate gate valve of claim 1, wherein: the reset mechanism comprises a reset pin (7), the side surfaces of the auxiliary gate plate (2) and the main gate plate (3) are respectively provided with the reset pin (7), and a reset element is connected between the reset pins (7).

6. The expanding seal plate gate valve of claim 5, wherein: the reset element is an elastic reset rod (6).