CN212616349U

CN212616349U - High leakproofness valve

Info

Publication number: CN212616349U
Application number: CN202020758559.1U
Authority: CN
Inventors: 黄智�; 黄才中
Original assignee: Jiangsu Yulong Forging Co ltd
Current assignee: Jiangsu Yulong Forging Co ltd
Priority date: 2020-05-11
Filing date: 2020-05-11
Publication date: 2021-02-26
Anticipated expiration: 2030-05-11

Abstract

The utility model discloses a high-tightness valve, which relates to the technical field of valves and comprises a valve body with a cylindrical inner cavity and a valve rod, wherein the valve rod is arranged in the valve body in a penetrating way along the diameter direction of the inner cavity of the valve body; a disc-shaped valve plate is fixed on a valve rod in the inner cavity of the valve body, the diameter of the valve plate is equal to that of the inner cavity of the valve body, a first groove is formed in the inner wall of the valve body along the circumferential direction, and the width of the first groove is larger than the thickness of the valve plate; an annular rubber ring is embedded in the first groove, and the valve rod penetrates through the rubber ring and is in seamless rotatable connection with the rubber ring; no. two grooves are formed in the inner wall of the rubber ring along the circumferential direction, and the rubber rings on the two sides of the No. two grooves protrude out of the notches of the No. one grooves. The utility model discloses simple structure, sealing performance height, easy maintenance, it is with low costs.

Description

High leakproofness valve

Technical Field

The utility model relates to the technical field of valves, concretely relates to high leakproofness valve.

Background

Most of the existing valves are sealed by the direct contact of a valve plate and a valve body, and because the valves need to be opened and closed frequently, after the valves are used for a long time, the valve plate and the inner wall of the valve body are abraded, so that a large gap is formed between the valve plate and the inner wall of the valve body, and further leakage is generated; meanwhile, in order to prevent air flow such as air flow from leaking from a gap at the joint of the valve rod and the valve body, manufacturers generally have high requirements on the sealing machining precision of the valve rod and the valve body, the first cost is high, impurities are contained in the second air flow, a sealing element between the valve rod and the valve body is easily blocked, and the valve is difficult to open and close.

Disclosure of Invention

The utility model aims to overcome the above-mentioned utility model not enough, provide a simple structure, convenient to use's high leakproofness valve.

In order to realize the purpose of the utility model, the utility model adopts the technical scheme that: a high-sealing valve comprises a valve body with a cylindrical inner cavity and a valve rod, wherein the valve rod penetrates through the valve body along the diameter direction of the inner cavity of the valve body, the valve rod is rotatably connected with the valve body, one end of the valve rod is clamped into the inner wall of the valve body, and the other end of the valve rod extends out of the valve body; a disc-shaped valve plate is fixed on a valve rod in the inner cavity of the valve body, and the diameter of the valve plate is equal to that of the inner cavity of the valve body; an annular rubber ring is embedded in the first groove, and the valve rod penetrates through the rubber ring and is in seamless rotatable connection with the rubber ring; no. two grooves are formed in the inner wall of the rubber ring along the circumferential direction, and the rubber rings on the two sides of the No. two grooves protrude out of the notches of the No. one grooves.

The valve rod drives the valve plate and rotates round the axis of valve rod, and when the valve plate was gone into the complete card of rubber circle in No. two recesses, the valve body inner chamber was the confined state that the air current can't pass through, when the valve plate broke away from No. two recesses in, the valve body inner chamber was the air current and can circulate the state, and when the valve plate was parallel with the valve body inner wall of valve rod both sides, the valve body inner chamber was the complete circulation state of air current.

Furthermore, the groove bottom of the second groove and the notch of the first groove are positioned on the same horizontal plane.

Further, the inner walls of the rubber rings on two sides of the second groove are arc-shaped walls.

Furthermore, the rubber ring is bonded with the first groove through a sealant.

Further, the thickness of the valve plate gradually decreases from the center of the circle to the outside of the circle.

Further, the valve rod is of a cylindrical structure.

The utility model has the advantages that: the device has simple structure and convenient manufacture, adopts the matching of the rubber ring and the valve plate and the rubber ring and the valve rod, has good sealing effect, and has long service life because the rubber has the characteristic of high elasticity, the valve plate and the valve rod are not easy to be abraded and damaged and not easy to be blocked by impurities; and in case the rubber circle appears ageing wearing and tearing back, can in time change the rubber circle, low cost.

Drawings

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

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

In the figure: valve body 1, valve rod 2, valve plate 3, recess 4, rubber circle 5, recess 6 No. two.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

A high-sealing valve comprises a valve body 1 with a cylindrical inner cavity and a valve rod 2, wherein the valve rod 2 penetrates through the valve body 1 along the diameter direction of the inner cavity of the valve body 1, the valve rod 2 is rotatably connected with the valve body 1, one end of the valve rod 2 is clamped into the inner wall of the valve body 1, and the other end of the valve rod extends out of the valve body 1; a disc-shaped valve plate 3 is fixed on a valve rod 2 in an inner cavity of the valve body 1, the diameter of the valve plate 3 is equal to that of the inner cavity of the valve body 1, the thickness of the valve plate 3 is gradually reduced from the circle center to the outside of the circle, a first groove 4 is formed in the inner wall of the valve body 1 along the circumferential direction, and the width of the first groove 4 is larger than that of the valve plate 3; an annular rubber ring 5 is embedded in the first groove 4, the rubber ring 5 is bonded with the first groove 4 through sealing glue, and the valve rod 2 penetrates through the rubber ring 5 and is in seamless rotatable connection with the rubber ring 5; no. two recesses 6 have been seted up along the circumferencial direction to the inner wall of rubber circle 5, and the tank bottom of No. two recesses 6 is located same horizontal plane with the notch of a recess 4, and the notch of a recess 4 is salient to the rubber circle 5 of No. two recess 6 both sides, and 5 inner walls of the rubber circle of No. two recess 6 both sides are the arc wall, and valve rod 2 is cylindrical structure.

Valve rod 2 drives the valve plate 3 and rotates round the axis of valve rod 2, and when the valve plate 3 blocked in the recess 6 No. two of rubber circle 5 completely, 1 inner chamber of valve body was the closed condition that the air current can't pass through, when the valve plate 3 breaks away from in recess 6 No. two, 1 inner chamber of valve body was the air current and can circulate the state, and when the valve plate 3 was parallel with the 1 inner wall of valve body of valve rod 2 both sides, 1 inner chamber of valve body was the complete circulation state of air current.

The described embodiments are only some, but not all embodiments of the invention. 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.

Claims

1. A high-sealing valve comprises a valve body with a cylindrical inner cavity and a valve rod, wherein the valve rod penetrates through the valve body along the diameter direction of the inner cavity of the valve body, the valve rod is rotatably connected with the valve body, one end of the valve rod is clamped into the inner wall of the valve body, and the other end of the valve rod extends out of the valve body; a disc-shaped valve plate is fixed on a valve rod in the inner cavity of the valve body, and the diameter of the valve plate is equal to that of the inner cavity of the valve body; an annular rubber ring is embedded in the first groove, and the valve rod penetrates through the rubber ring and is in seamless rotatable connection with the rubber ring; no. two grooves are formed in the inner wall of the rubber ring along the circumferential direction, and the rubber rings on the two sides of the No. two grooves protrude out of the notches of the No. one grooves.

2. The high-tightness valve according to claim 1, wherein the groove bottom of the second groove and the notch of the first groove are located on the same horizontal plane.

3. The high-tightness valve according to claim 1, wherein the inner walls of the rubber rings on both sides of the second groove are arc-shaped walls.

4. The high-tightness valve according to claim 1, wherein the rubber ring is adhered to the first groove by a sealant.

5. The high-sealability valve of claim 1, wherein the thickness of the valve plate gradually decreases from the center of the circle to the outside of the circle.

6. The high-tightness valve according to claim 1, wherein said valve stem is of a cylindrical structure.