Fan-shaped glasses valve plate disengagement structure

Abstract

The invention provides a fan-shaped glasses valve plate disengaging structure which comprises a left valve body, a valve plate and a lead screw, two ejector rod mechanisms are arranged on the left valve body, a base plate is arranged on the side, close to the left valve body, of a guide rail of the valve plate, and a clamping ring is arranged on the lead screw on the other side of the valve plate. The ejector rod mechanism, the base plate and the clamping ring are utilized, the valve plate is forcibly disengaged when the valve plate acts, the ejector rod mechanism and the clamping ring limit the valve plate, the valve plate is prevented from shaking left and right, and therefore the effect of protecting the rubber sealing ring is achieved.

Description

Technical Field

[0001] This invention relates to the field of sector-shaped spectacle valve technology. Background Technology

[0002] In actual use, the existing sector-shaped spectacle valve has a small separation distance between the valve plate and the valve seat sealing surface, which causes the valve seats of the left and right valve bodies to be scratched and damaged during the switching of the valve plate and the blind plate, resulting in leakage. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides a fan-shaped spectacle valve plate disengagement structure, comprising a left valve body, a valve plate, and a lead screw. Two push rod mechanisms are provided on the left valve body. A pad is provided on the side of the valve plate's guide rail near the left valve body. The pad consists of three pads of different sizes, which are fixed to the valve plate by welding. A retaining ring is provided on the lead screw on the other side of the valve plate.

[0004] Preferably, the push rod mechanism includes a push rod, a roller, and a pin. Beneficial effects

[0005] By using a push rod mechanism, a pad, and a retaining ring, the valve plate is forcibly disengaged when it moves. The push rod mechanism and the retaining ring limit the valve plate, preventing it from wobbling left and right, thus protecting the rubber sealing ring. Attached Figure Description

[0006] Figure 1 This is a schematic diagram of the valve plate detachment structure; Figure 2 This is a schematic diagram of a fan-shaped spectacle valve.

[0007] In the diagram: 1. Push rod mechanism; 2. Left valve body; 3. Pad plate; 4. Valve plate; 5. Valve seat; 6. Snap ring; 7. Lead screw; 8. Rubber sealing ring. Detailed Implementation

[0008] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0009] See Figure 1-2First, two push-rod mechanisms are installed on the left valve body. Second, three pads of varying lengths are welded to the side of the valve plate guide rail near the left valve body; these pads work in conjunction with the push-rod structures. Then, a retaining ring is installed on the threaded rod on the other side of the valve plate. When the valve is fully open or fully closed, the push-rods are positioned in the gap between the pads. When the valve plate moves, the push-rod structure engages with the pads, forcing the valve plate to disengage from the valve seat's sealing surface. Simultaneously, the retaining ring engages with the other side of the valve plate. Under the combined action of the push-rods and the retaining ring, the valve plate is prevented from swaying left and right during movement, thus protecting the rubber sealing ring. The valve body is a one-piece design, and the valve body is butt-welded to the pipeline, preventing leakage of the medium from the gasket caused by flange connections.

[0010] It should be noted that in this paper, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

Claims

1. A fan-shaped spectacle valve plate disengagement structure, comprising a left valve body, a valve plate, and a lead screw, characterized in that, Two push rod mechanisms are provided on the left valve body. A pad is provided on the side of the valve plate guide rail near the left valve body. The pad consists of three pads of different sizes. The pads are fixed to the valve plate by welding. A retaining ring is provided on the lead screw on the other side of the valve plate.

2. The fan-shaped spectacle valve plate disengagement structure according to claim 1, characterized in that... The push rod mechanism includes a push rod, a roller, and a pin.

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