CN2385171Y

CN2385171Y - Sewage special-purpose sluice valve

Info

Publication number: CN2385171Y
Application number: CN 99242161
Authority: CN
Inventors: 禹永和
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-08-25
Filing date: 1999-08-25
Publication date: 2000-06-28
Anticipated expiration: 2009-08-25

Abstract

The utility model relates to a sewage special gate valve, which comprises a valve body, a gate plate, and a regulating device which can control the elevation of the gate plate. The utility model is characterized in that a sealing ring is arranged at one side of the valve body which is fixed through a chuck ring; a groove provided with an inclined plane is arranged at the lower part of the gate plate; a boss which can be embedded in the groove of the gate plate and is provided with an inclined plane is arranged on a cavity at the lower part of the valve body. The utility model realizes seal through a sealing pair composed of the sealing ring and the chuck ring and increases sealing force through the boss on the valve body and the two mutually contacted surfaces of the groove on the grate plate, which causes the gate valve to have the advantages of flexible start and stop, little possibility of blocking, good sealing effect, strong anti-seeping performance, and long service life.

Description

The special-purpose gate valve of a kind of sewage

The utility model relates to a kind of gate valve, particularly a kind ofly is used for the special-purpose gate valve that sewage treatment control contains various fibers, granule foreign slurry.

Usually, in sewage disposal process, be to adopt common gate valve that the discharge of sewage is controlled mostly, such gate valve mainly reaches the controlling device that is connected the lifting of may command flashboard with flashboard that is made of valve rod, handwheel etc. by valve body, flashboard and constitutes.Owing to be to place in the guide groove of valve body by flashboard to realize its sealing mostly between valve body and the flashboard, and what flow through in the pipeline is the sewage that contains various impurity, when flashboard opened and closed, the foreign material of deposition very easily caused poorly sealed or stuck flashboard or stop up valve in the cavity.Once had and a kind ofly realized the gate valve of its sealing by being set in place elastic sealing ring in valve body cavity one side groove, though it has overcome the deficiency of above-mentioned gate valve to a certain extent, but because elastic sealing ring is an easily damaged parts, behind the sealing surface wear of seal ring, because of it being changed comparatively difficulty, so will cause valve to be scrapped, cause unnecessary waste.

The purpose of this utility model is to provide a kind of sewage special-purpose gate valve, and it not only opens and closes flexibly, be difficult for the deposition foreign material in the valve body, and good sealing effect, barrier performance by force, long service life.

Its concrete solution is: valve body one side is provided with seal ring, the sealing ring is fixed by pressure ring, be beneficial to it is changed, the flashboard bottom is provided with the groove that has the inclined-plane on it, and the cavity of valve body lower portion is provided with and can embeds in the flashboard groove, and, also have the boss on inclined-plane on it, thereby when making closing gate valve, two inclined-planes that contact can increase sealing force greatly and prevent seepage effectively.

In addition then, described seal ring is the L shaped seal ring of rubber-like, and pressure ring is L shaped pressure ring.

Boss on the groove of described flashboard bottom and the corresponding valve body with it is two, between its two groove between angle and two boss angle be 90 °.

The utility model is paid by the sealing that is made of seal ring and pressure ring of valve body one side setting and is realized its sealing, and the inclined-plane increase sealing force that contacts by the boss on the valve body and with groove two on its corresponding part flashboard, not only the one-way sealing friction torque is little to make this gate valve, open and close flexibly, be difficult for the deposition foreign material in the valve body, valve body is thin, easy to install, be suitable for using in the narrow environment, and, good sealing effect, barrier performance is strong, and can regularly replace seal ring easily, gate valve can be improved more than 5 times working life.

In conjunction with the accompanying drawings the utility model is described in detail below by embodiment:

Fig. 1 is the utility model structural representation.

Fig. 2 is the utility model flashboard plan view.

Fig. 3 is the A-A sectional view of Fig. 2.

Fig. 4 is the utility model seal ring plan view.

Fig. 5 is the utility model seal ring plan view.

Fig. 6 is the utility model pressure ring plan view.

Fig. 7 is the utility model pressure ring plan view.

Among Fig. 1-Fig. 7, flashboard (3) top is hinged by bearing pin (7) and valve rod (8), Stem Mut seat (10) is connected the top of the column (12) on valve body (1) top, Stem Mut (11) is positioned at valve body nut seat (10), its upper end is connected with handwheel (9), realize its sealing by filler (5) and hold-down grid (6) in the stuffing box between valve body (1) top and flashboard (3), the seal ring (2) of valve body one side is a rubber-like L type seal ring, it is fixed by L shaped pressure ring (4), the bottom of flashboard (3) is provided with two grooves (13) that have the inclined-plane on it, and two groove angles (α) are 90 °, can place in the flashboard groove and the cavity of valve body (1) bottom is provided with two, the boss that also has inclined surface on it.

When rotation hand wheel (9) is closed gate valve, flashboard (3) can be realized its sealing with seal ring (2) even contact, and the boss on valve body this moment (1) will place in the groove (13) of flashboard (3), makes the two inclined-planes contact on boss and the groove, increase sealing intensity with this, stop seepage effectively.When need are changed seal ring, can go out pressure ring, easily seal ring be changed by valve body one side-draw.

Claims

1, the special-purpose gate valve of a kind of sewage, comprise valve body (1), flashboard (3) and the controlling device that is connected the lifting of may command flashboard with flashboard (3), it is characterized in that valve body (1) one side is provided with seal ring (2), sealing ring (2) is fixed by pressure ring (4), flashboard (3) bottom is provided with the groove (13) that has the inclined-plane on it, and the cavity of valve body (1) bottom is provided with and can embeds in the flashboard groove, and also has the boss on inclined-plane on it.

2, the special-purpose gate valve of a kind of sewage according to claim 1 is characterized in that seal ring (2) is the L shaped seal ring of rubber-like, and pressure ring (4) is L shaped pressure ring.

3, the special-purpose gate valve of a kind of sewage according to claim 1 is characterized in that the groove (13) of flashboard (3) bottom and the boss on the corresponding valve body with it (1) are two, between its two groove (13) between angle (α) and two boss angle be 90 °.