CN216666539U

CN216666539U - Wear-resistant regulating valve core structure

Info

Publication number: CN216666539U
Application number: CN202220213632.6U
Authority: CN
Inventors: 方小明; 张晓东; 王炳荣; 孙飞; 梁春; 张帆
Original assignee: HANGZHOU YITAI AUTOMATIC CONTROL EQUIPMENT CO Ltd
Current assignee: HANGZHOU YITAI AUTOMATIC CONTROL EQUIPMENT CO Ltd
Priority date: 2022-01-26
Filing date: 2022-01-26
Publication date: 2022-06-03
Anticipated expiration: 2032-01-26

Abstract

The utility model discloses a wear-resistant regulating valve core structure, which comprises a valve rod; the split type valve core comprises a positioning end and a sealing end which are arranged on the valve rod, and a positioning structure arranged on the positioning end and the sealing end. By adopting the design of the split type valve core, when the sealing surface on the valve core can not be used continuously due to abrasion, only the sealing end needs to be replaced, thereby saving materials and cost; through location structure's setting, carry on spacingly to the mounted position of seal end, through spacing piece on the concave station and the setting of locating the spacing groove of serving, prevent that location end and seal end from producing the wearing and tearing that rotate and aggravate between sealed face and the disk seat when carrying out spacingly to the mounted position of location end.

Description

Wear-resistant regulating valve core structure

Technical Field

The utility model relates to a regulating valve, in particular to a wear-resistant regulating valve core structure.

Background

The valve core assembly is a valve part for realizing basic functions of direction control, pressure control or flow control by means of the movement of the valve body, generally comprises a valve rod and a valve core, the existing valve core is basically integral, and the valve core is basically welded, bolted and the like when connected with the valve rod;

however, in a long-term use process, the sealing surface of the valve element is abraded due to frequent friction with the valve seat and long-term impact of a medium, once the sealing surface is abraded, leakage is generated, the valve element needs to be replaced due to leakage, the whole valve element needs to be replaced during replacement, and the cost is high. To this end, a wear-resistant control valve cartridge structure is proposed.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems and provide a wear-resistant valve core structure of a regulating valve.

In order to achieve the purpose, the utility model provides a wear-resistant regulating valve core structure in the following technical scheme, which comprises a valve rod; the split type valve core comprises a positioning end and a sealing end which are arranged on the valve rod, and a positioning structure arranged on the positioning end and the sealing end.

Further preferably, the positioning structure comprises a plurality of positioning platforms arranged on the positioning end and positioning grooves arranged on the sealing end and matched with the positioning platforms.

Further preferably, the side wall of the sealing end is provided with a sealing surface in a conical shape.

Further preferably, a wear-resistant coating is arranged on the sealing surface, and the wear-resistant coating is a Ni 60-WC composite coating.

Further preferably, the valve rod is provided with a concave platform which has a limiting effect on the positioning end, the concave platform is provided with a plurality of limiting blocks, and the positioning end is provided with a limiting groove matched with the limiting blocks.

By adopting the design of the split type valve core, when the sealing surface on the valve core cannot be used continuously due to abrasion, only the sealing end needs to be replaced, so that the material and the cost are saved;

the installation position of the sealing end is limited through the arrangement of the positioning structure, and the installation position of the positioning end is limited through the arrangement of the limiting block on the concave table and the limiting groove on the positioning end, so that the positioning end and the sealing end are prevented from rotating in the use process to aggravate the abrasion between the sealing surface and the valve seat;

the wear-resistant coating is arranged on the sealing surface, so that the wear resistance of the sealing surface is improved, the service life is prolonged, and the cost is reduced.

Drawings

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

FIG. 2 is a partial cross-sectional structural schematic of the present invention;

FIG. 3 is a schematic view of a partial valve stem structure according to the present invention;

FIG. 4 is a schematic view of a positioning end of the present invention;

FIG. 5 is a schematic view of the seal end structure of the present invention.

Illustration of the drawings: 1. a valve stem; 11. a concave platform; 12. a limiting block; 2. a split type valve core; 21. a positioning end; 22. sealing the end; 23. a sealing surface; 24. a wear-resistant coating; 25. a limiting groove; 3. fixing a nut; 4. a positioning structure; 41. a positioning table; 42. and (7) positioning a groove.

Detailed Description

The wear-resistant valve core structure of the regulating valve according to the present invention will be further described with reference to the accompanying drawings.

Referring to fig. 1-5, a wear resistant regulator valve cartridge structure includes a valve stem 1; the valve is characterized by further comprising a split type valve core 2 arranged at one end of the valve rod 1 and a fixing nut 3 which is arranged on the valve rod 1 through threads and used for fixing the split type valve core 2, wherein the split type valve core 2 comprises a positioning end 21 and a sealing end 22 which are arranged on the valve rod 1 and a positioning structure 4 which is arranged on the positioning end 21 and the sealing end 22; by adopting the design of the split type valve core 2, when the sealing surface 23 on the valve core cannot be used continuously due to abrasion, only the sealing end 22 needs to be replaced, so that the material and the cost are saved; through the setting of location structure 4, carry on spacingly to the mounted position of sealed end 22, through the setting of spacing groove 25 on spacing 12 and the location end 21 on the concave station 11, prevent location end 21 and sealed end 22 from producing the rotation and aggravating the wearing and tearing between sealed face 23 and the valve seat in the use when carrying out spacing to the mounted position of location end 21.

Further, the positioning structure 4 includes a plurality of positioning tables 41 disposed on the positioning end 21 and positioning grooves 42 disposed on the sealing end 22 and adapted to the positioning tables 41; through the arrangement of the positioning table 41 and the positioning groove 42, the connection between the sealing end 22 and the positioning end 21 is increased, and meanwhile, the installation position of the sealing end 22 is limited, so that the sealing end is prevented from rotating when in use;

further, the side wall of the sealing end 22 is provided with a conical sealing surface 23; the sealing surface 23 is set to be conical, so that the sealing surface can be better attached to a valve seat, and the sealing effect is better.

Further, a wear-resistant coating 24 is arranged on the sealing surface 23, and the wear-resistant coating 24 is a Ni 60-WC composite coating; the wear-resistant coating is arranged on the sealing surface 23, so that the wear resistance of the sealing surface 23 is improved, the service life is prolonged, and the cost is reduced.

Further, a concave platform 11 which has a limiting effect on the positioning end 21 is arranged on the valve rod 1, a plurality of limiting blocks 12 are arranged on the concave platform 11, and a limiting groove 25 which is matched with the limiting blocks 12 is arranged on the positioning end 21; through setting up of spacing block 12 on concave station 11 and concave station 11, inject the mounted position of location end 21 to inject the mounted position of sealed end 22 on the valve rod, through the setting of spacing block 12 and spacing groove 25, prevent that location end 21 from driving sealed end 22 and rotating in the use simultaneously.

The installation process of the utility model is as follows: firstly, install location end 21 on valve rod 1, promote location end 21 after spacing groove 25 on location end 21 cooperates with stopper 12, make its one end and concave station 11 laminate, then promote sealed end 22 and make the location platform 41 on location end 21 insert the constant head tank 42 on sealed end 22 in sealed end 22 and the laminating of location end 21 after covering sealed end 22 on valve rod 1, then install fixation nut 3 on valve rod 1 through the screw thread and screw, the installation is accomplished after screwing, can dismantle sealed end 22 and change after only needing to unscrew fixation nut 3 during the dismantlement, still can strengthen being connected through the welding between location end 21 and the valve rod 1.

The scope of protection of the utility model is not limited to the above embodiments and variations thereof. The present invention is not limited to the above embodiments, but may be modified in various ways.

Claims

1. A wear-resistant regulating valve core structure comprises a valve rod (1); the valve is characterized by further comprising a split type valve core (2) arranged at one end of the valve rod (1) and a fixing nut (3) which is arranged on the valve rod (1) through threads and used for fixing the split type valve core (2), wherein the split type valve core (2) comprises a positioning end (21) and a sealing end (22) which are arranged on the valve rod (1) and a positioning structure (4) which is arranged on the positioning end (21) and the sealing end (22).

2. A wear resistant regulator valve cartridge structure in accordance with claim 1, wherein: the positioning structure (4) comprises a plurality of positioning tables (41) arranged on the positioning end (21) and positioning grooves (42) arranged on the sealing end (22) and matched with the positioning tables (41).

3. A wear resistant regulator valve cartridge structure in accordance with claim 2, wherein: the side wall of the sealing end (22) is provided with a conical sealing surface (23).

4. A wear resistant regulator valve cartridge structure in accordance with claim 3 wherein: and a wear-resistant coating (24) is arranged on the sealing surface (23), and the wear-resistant coating (24) is a Ni (60) -WC composite coating.

5. A wear resistant regulator valve cartridge structure in accordance with claim 1, wherein: be equipped with concave station (11) that play limiting displacement to location end (21) on valve rod (1), be equipped with a plurality of stopper (12) on concave station (11), be equipped with spacing groove (25) with stopper (12) looks adaptation on location end (21).