CN220227888U - Gate valve - Google Patents

Abstract

The utility model provides a push-pull valve, including valve body, case, the valve body includes the pipeline, set up door frame shape flashboard frame on the pipeline, set up the guide slot in door frame shape flashboard frame inboard, the guide slot includes cell wall, lower cell wall, the case is the platy object, the cell wall includes straight cell wall and the crooked cell wall that links together with a pair of straight cell wall on going up, the cell wall includes straight cell wall down, form the recess between straight cell wall and the last straight cell wall down, the width of straight cell wall is less than the width of straight cell wall down, the case that inserts in the guide slot moves about the recess. Compared with the prior art, the utility model has the advantage of preventing the valve core plate from being blocked due to powder accumulation in the guide groove.

Description

Gate valve

Technical Field

The utility model relates to the technical field of valves, in particular to a gate valve.

Background

At present, the electric gate valve is widely applied in various industries, but the existing electric gate valve can be blocked when being used in certain occasions, for example, the phenomenon of blocking a valve core plate can be caused due to the influence of the easy accumulation of powder in a guide groove and the weight of the stored material at the top of a valve body of equipment with the electric gate valve arranged at the bottom of a powder bin, a feed bin and the like, and further the phenomenon of blocking a burning motor or disconnecting external connection and the like can be caused.

Disclosure of Invention

The utility model aims to provide a gate valve capable of preventing a valve core plate from being blocked due to powder accumulated in a guide groove.

The gate valve is realized by the valve body and the valve core, the valve body comprises a pipeline, a door frame-shaped gate board frame arranged on the pipeline and a guide groove arranged on the inner side of the door frame-shaped gate board frame, the guide groove comprises an upper groove wall and a lower groove wall, the valve core is a plate-shaped object, the end part of the valve core is in a bending shape matched with the cross section shape of the pipeline, the valve core is characterized in that the upper groove wall comprises a pair of upper straight groove walls and a bending groove wall connected with the pair of upper straight groove walls, the shape of the bending groove wall is matched with the cross section shape of the inner side of the pipeline and is abutted against the inner side wall of the pipeline, the lower groove wall comprises a pair of lower straight groove walls, a groove is formed between the lower straight groove wall and the upper straight groove wall, the width of the lower straight groove wall is smaller than the width of the upper straight groove wall, and the valve core inserted into the guide groove moves left and right along the groove.

When the pipeline opening device works, materials enter from the upper opening of the pipeline and exit from the lower opening of the pipeline, the valve core moves left and right along the groove under the drive of power, and the valve core moves in and out of the pipeline in the direction perpendicular to the pipeline, so that the pipeline opening/closing effect is realized. Because the lower groove wall only has a pair of lower straight groove walls, the material flowing through the pipeline can not be detained below the curved groove wall to influence the left-right movement of the valve core, the width of the lower straight groove wall is smaller than that of the upper straight groove wall, the material is not easy to fall onto the lower straight groove wall under the shielding of the upper straight groove wall, even if a small amount of material falls, the lower groove wall is the lower straight groove wall, and therefore, the material can be pushed out of the pipeline outside the end of the lower straight groove wall under the action of the valve core.

Preferably, the upper edge of the periphery of the valve core is chamfered. With the chamfer, the upper edge that accumulates at the periphery of the spool will slide down the chamfer without accumulating at the upper edge and being carried into the lower straight groove wall as the spool moves.

Compared with the prior art, the utility model has the advantage of preventing the valve core plate from being blocked due to powder accumulation in the guide groove.

Drawings

FIG. 1 is a schematic view of a gate valve according to the present utility model;

FIG. 2 is a schematic view of the structure of the valve body of the present utility model;

fig. 3 is a schematic structural view of the valve core of the present utility model.

Reference numerals illustrate: a-valve body; b-valve core; 1-a pipeline; 2-door frame shaped shutter frame; 3-a guide groove; 301-upper groove wall; 3011-upper straight slot wall; 3012-curved slot walls; 302-lower groove wall; 3021-lower straight groove wall, 4-end; 5-upper edge.

Detailed Description

The utility model will now be described in further detail with reference to the accompanying drawings and examples:

as shown in fig. 1, the gate valve of the present utility model comprises a valve body a, a valve core B, the valve body a comprises a pipe 1, a door frame-shaped gate frame 2 arranged on the pipe 1, a guide groove 3 arranged on the inner side of the door frame-shaped gate frame 2, the guide groove 3 comprises an upper groove wall 301 and a lower groove wall 302, the valve core B is a plate-shaped object, an end 4 of the valve core B takes a curved shape matching with the cross-sectional shape of the pipe 1, and is characterized in that the upper groove wall 301 comprises a pair of upper straight groove walls 3011 and a curved groove wall 3012 connected with the pair of upper straight groove walls 3011 (if the pipe 1 is a circular pipe, the curved groove wall 3012 takes a semicircular arc shape), the shape of the curved groove wall 3012 matches with the cross-sectional shape of the inner side of the pipe 1 and abuts against the inner side wall of the pipe 1, the lower groove wall 302 comprises a pair of lower straight groove walls 3021, a groove is formed between the lower straight groove walls 3021 and the upper straight groove walls 3011, the width of the lower straight groove walls 3021 is smaller than the width of the upper straight groove walls 3011, and the valve core B inserted into the guide groove moves left and right along the groove.

Preferably, the upper edge 5 of the periphery of the spool B is chamfered.

Claims (2)

1. The gate valve is characterized in that the upper groove wall comprises a pair of upper straight groove walls and a pair of curved groove walls connected with the upper straight groove walls, the shape of the curved groove walls is matched with the cross section shape of the pipeline and abuts against the inner side wall of the pipeline, the lower groove wall comprises a pair of lower straight groove walls, a groove is formed between the lower straight groove walls and the upper straight groove walls, the width of the lower straight groove walls is smaller than that of the upper straight groove walls, and the valve core inserted into the groove moves left and right along the groove.

2. The gate valve of claim 1, wherein an upper edge of the perimeter of the spool is chamfered.