CN213575616U

CN213575616U - Stop valve

Info

Publication number: CN213575616U
Application number: CN202022017726.XU
Authority: CN
Inventors: 项永利
Original assignee: Wenzhou Hongri Valve Co ltd
Current assignee: Wenzhou Hongri Valve Co ltd
Priority date: 2020-09-15
Filing date: 2020-09-15
Publication date: 2021-06-29
Anticipated expiration: 2030-09-15

Abstract

The utility model discloses a stop valve, which comprises a valve body and a valve cover arranged on the valve body, wherein the valve body comprises a valve rod, a valve seat and a valve clack arranged on the valve seat, the upper end of the valve rod passes through the valve cover to be connected with an external actuator, the valve cover is close to one end of the valve body to form a convex block, a sealing gasket is arranged on the convex block, a sealing ball and sealing teeth are formed on the sealing gasket, the sealing teeth are arranged at two sides of the sealing ball, grooves form a tooth socket and a ball groove corresponding to the shapes of the sealing ball and the sealing teeth, the sealing teeth extend into the sealing tooth socket, the sealing ball extends into the sealing ball groove, the valve cover and the valve body are provided with the sealing gasket between the valve cover and the valve body to prevent the valve cover and the valve body from being worn in the disassembly process, thereby generating gaps and causing the leakage of the, the service life of the valve rod and the valve clack is effectively prolonged.

Description

Stop valve

Technical Field

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

Background

The stop valve, also called stop valve, is the most widely used valve, and it is popular because the friction between the sealing surfaces is small in the opening and closing process, it is durable, the opening height is not large, it is easy to manufacture, it is convenient to maintain, it is not only suitable for middle and low pressure, but also suitable for high pressure. Current stop valve is in long-term overhaul and maintenance process, can produce wearing and tearing between valve gap and the valve body to produce the space, lead to revealing of medium, and valve clack and valve rod are in the medium for a long time, and the valve clack can be erodeed by the medium with the junction of valve rod and corrode, reduces life.

Disclosure of Invention

In view of this, the utility model provides a stop valve.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a stop valve, includes the valve body and is located the valve gap on the valve body, including valve rod, disk seat and the valve clack that is located on the disk seat in the valve body, the valve rod upper end is passed the valve gap and is connected with external actuator, the valve gap is close to valve body one end and forms the lug, the position that valve body and lug correspond forms the recess, set up sealed the pad on the lug, form sealed ball and seal tooth on the sealed pad, seal tooth sets up in the sealed ball both sides, the shape that the recess corresponds sealed ball and seal tooth forms sealed tooth's socket and sealed ball groove, seal tooth stretches into in the sealed tooth's socket, the sealed ball stretches into.

The preferred, the one end that the valve rod stretched into in the valve body is connected with the valve clack, form the spread groove on the valve clack, the valve rod stretches into in the spread groove, the valve rod bottom sets up the connecting block, the connecting block is connected with the valve rod, set up the wear pad between connecting block and the spread groove.

The preferred, the external diameter of connecting block is greater than the external diameter of valve rod, set up the valve clack lid on the connecting block, the protrusion of valve clack lid both sides sets up the stopper, stopper and spread groove roof butt, valve clack lid outer wall sets up the external screw thread, spread groove inner wall sets up the internal thread, valve clack lid and spread groove threaded connection.

Preferably, the valve body sinks to form a step part corresponding to the position of the bump, the step part is provided with a first step surface and a second step surface, the first step surface is in contact with the bottom surface of the valve cover on two sides of the bump, and the groove is formed in the second step surface.

Preferably, the sealing gasket is made of elastic rubber, and the sealing ball and the sealing teeth are of an integrated structure.

Preferably, a packing groove is formed between the valve rod and the valve cover, sealing packing is arranged in the packing groove, a packing gland is arranged on the sealing packing, and the packing gland is fixedly connected with the valve cover through a screw.

The beneficial effects of the utility model reside in that: through set up sealed the pad between valve gap and valve body, can prevent that valve gap and valve body from taking place wearing and tearing at the dismantlement in-process to produce the space, what lead to reveals, set up on the valve clack lid can effectually prevent that the medium from getting into and erode the corruption to it in the spread groove that valve rod and valve clack are connected, the effectual life who prolongs valve rod and valve clack.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged view of FIG. 1 at B

FIG. 3 is an enlarged view of the point A in FIG. 1

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. 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.

The invention will be further described with reference to the accompanying drawings.

The utility model provides a following technical scheme:

as shown in fig. 1-3, the utility model discloses a stop valve, valve gap 5 on valve body 8 with being located including valve body 8, including valve rod 2, disk seat 6 and be located the valve clack 17 on the disk seat 6 in the valve body 8, valve rod 2 upper ends are passed valve gap 5 and are connected with external actuator 1, valve gap 5 is close to 8 one end of valve body and is formed lug 7, valve body 8 forms recess 13 with the position that lug 7 corresponds, set up sealed pad 9 on the lug 7, form sealed ball 10 and seal tooth 11 on the sealed pad 9, seal tooth 11 sets up in sealed ball 10 both sides, the shape that recess 13 corresponds sealed ball 10 and seal tooth 11 forms sealed tooth's socket 12 and sealed ball groove, sealed tooth 11 stretches into sealed tooth's socket 12, sealed ball 10 stretches into sealed ball groove 13.

In order to reduce the scouring of the received medium between the valve rod 2 and the valve clack 17, one end of the valve rod 2 extending into the valve body 8 is connected with the valve clack 17, a connecting groove 18 is formed in the valve clack 17, the valve rod 2 extends into the connecting groove 18, a connecting block 14 is arranged at the bottom of the valve rod 2, the connecting block 14 is connected with the valve rod 2, and a wear-resistant pad 16 is arranged between the connecting block 14 and the connecting groove 18. Specifically, the bottom of connecting block 14 is provided with annular 15, wearing pad 16 one side is stretched into in annular 15 and is connected with annular 15, and the diapire contact of opposite side and spread groove 18, wearing pad 16's material is elastic rubber, can effectually slow down the vibrations that valve rod 2 drove valve clack 17 and disk seat 6 contact and bring in the long-term lift in-process of valve rod 2, and wearing pad 16 of elastic rubber material has good wear-resisting effect.

Specifically, the external diameter of connecting block 14 is greater than the external diameter of valve rod 2, set up valve clack lid 19 on the connecting block 14, 19 both sides protrusions of valve clack lid set up the stopper, stopper and 18 roof butt of spread groove, 19 outer walls of valve clack lid set up external screw thread (not shown), 18 inner walls of spread groove set up the internal thread (not shown), valve clack lid 19 and 18 threaded connection of spread groove, the setting of valve clack lid 19 can make the clearance that spread groove 18 between valve plate and the connecting rod has covered by valve clack lid 19, and valve clack lid 19 and 17 threaded connection of valve clack, can effectually prevent that the medium from getting into spread groove 18, has avoided the medium to the inside washing away of spread groove 18.

Preferably, the valve body 8 is sunken to form a step corresponding to the position of the bump 7, the step has a first step surface 20 and a second step surface 21, the first step surface 20 is in ground contact with the valve cover 5 on both sides of the bump 7, the groove 13 is formed on the second step surface 21, and the step provided on the valve body 8 can excessively increase the contact area between the valve body 8 and the valve cover 5, thereby improving the sealing effect therebetween.

The sealing gasket 9 is made of elastic rubber, the sealing ball 10 and the sealing teeth 11 are of an integrated structure, and the sealing gasket 9 made of the elastic rubber can effectively reduce friction and collision between the valve cover 5 and the valve body 8 in the long-term disassembly and maintenance process.

Specifically, a packing groove is formed between the valve rod 2 and the valve cover 5, a sealing packing 4 is arranged in the packing groove, a packing gland 3 is arranged on the sealing packing 4, and the packing gland 3 is fixedly connected 19 with the valve cover 5 through a screw. Specifically, the external actuator 1 may be a hand wheel, an electric actuator and a pneumatic actuator, and the external actuator 1 is connected with the valve rod 2 to drive the valve clack 17 to lift, so as to control the circulation condition inside the stop valve.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The utility model provides a stop valve, includes the valve body and is located the valve gap on the valve body, be provided with valve rod, disk seat in the valve body and be located the valve clack on the disk seat, the valve rod upper end is passed the valve gap and is connected its characterized in that with external actuator: the valve gap is close to valve body one end and forms the lug, the position that valve body and lug correspond forms the recess, set up sealed pad on the lug, form sealed ball and sealed tooth on the sealed pad, sealed tooth sets up in sealed ball both sides, the shape that the recess corresponds sealed ball and sealed tooth forms sealed tooth's socket and sealed ball groove, sealed tooth stretches into in the sealed tooth's socket, sealed ball stretches into in the sealed ball inslot.

2. The shut-off valve of claim 1, wherein: the valve rod stretches into the one end in the valve body and is connected with the valve clack, form the spread groove on the valve clack, the valve rod stretches into in the spread groove, the valve rod bottom sets up the connecting block, the connecting block is connected with the valve rod, set up the abrasive pad between connecting block and the spread groove.

3. The shut-off valve of claim 2, wherein: the external diameter of connecting block is greater than the external diameter of valve rod, set up the valve clack lid on the connecting block, the protrusion of valve clack lid both sides sets up the stopper, stopper and spread groove roof butt, valve clack lid outer wall sets up the external screw thread, the spread groove inner wall sets up the internal thread, valve clack lid and spread groove threaded connection.

4. The shut-off valve of claim 1, wherein: the valve body sinks to form a step part corresponding to the position of the bump, the step part is provided with a first step surface and a second step surface, the first step surface is in contact with the bottom surfaces of the valve covers on two sides of the bump, and the groove is formed in the second step surface.

5. The shut-off valve of claim 2, wherein: the sealing gasket is made of elastic rubber, and the sealing ball and the sealing teeth are of an integrated structure.

6. The shut-off valve of claim 1, wherein: a packing groove is formed between the valve rod and the valve cover, sealing packing is arranged in the packing groove, a packing gland is arranged on the sealing packing, and the packing gland is fixedly connected with the valve cover through a screw.