CN217653355U

CN217653355U - Case limit structure

Info

Publication number: CN217653355U
Application number: CN202221435829.0U
Authority: CN
Inventors: 刘强; 李航; 国宁; 冯楠; 李�远; 刘亚喆; 赵子龙; 邓钊; 杨亚青; 高磊
Original assignee: Henan Aerospace Hydraulic and Pneumatic Technology Co Ltd
Current assignee: Henan Aerospace Hydraulic and Pneumatic Technology Co Ltd
Priority date: 2022-06-08
Filing date: 2022-06-08
Publication date: 2022-10-25
Anticipated expiration: 2032-06-08

Abstract

A valve core limiting structure comprises a limiting seat, wherein a limiting groove is formed in the upper surface of the limiting seat, a positioning groove is formed in the center of the upper surface of the limiting seat, and a fixing hole penetrating through the limiting seat is formed in the outer ring of the positioning groove; the beneficial effects of the utility model reside in that: the device can realize bottom fixing and limiting of the valve core through the limiting groove of the limiting seat, can ensure that the bottom structure of the valve core does not deform outwards, can stably move in the high-strength extrusion process, and can ensure that the device can be smoothly installed by matching with the fixing and limiting functions of the fixing hole and the positioning groove, thereby improving the production efficiency of the device; therefore, the condition that the valve core is deformed and damaged can not occur under the long-term high-light extrusion state of the valve core, the use of the whole device of the valve is ensured, the device is arranged at the bottom of the valve core, the surface of the device is smooth, the damage to the inner wall of a valve body of the valve can be avoided, and the service life of the device is ensured.

Description

Case limit structure

Technical Field

The utility model relates to a valve protection technical field especially relates to a realize spacing structure of case through carrying out the case is fixed.

Background

The valve is a control part in the fluid conveying system and has the functions of stopping, adjusting, guiding, preventing counter flow, stabilizing pressure, shunting or overflowing and relieving pressure and the like; valves for fluid control systems, from the simplest shut-off valves to the various valves used in extremely complex autonomous systems, are of a rather wide variety and specification; the valve can be used for controlling the flow of various types of fluid such as air, water, steam, various corrosive media, slurry, oil products, liquid metal, radioactive media and the like; the valves are further classified into cast iron valves, cast steel valves, stainless steel valves, chrome molybdenum vanadium steel valves, dual-phase steel valves, plastic valves, non-standard valves, etc. according to the material.

The valve is used as an important control unit in the pipeline and has the functions of stopping, adjusting, guiding, preventing counter flow, stabilizing pressure, shunting or overflowing and relieving pressure and the like; the sealing effect of the valve needs very high requirements, and the sealing performance of the valve is generally realized through a sealing structure of a valve core; the valve core is generally made of non-metal materials, such as: materials having good ductility such as rubber; then, under the condition of long-time extrusion, the non-metal valve core can be permanently deformed, and even the structure of the material is damaged; this can result in poor valve sealing or rejection of the entire valve assembly.

In order to solve the problem of damage to a valve core of the valve, the prior art is improved to a certain extent, and the valve core is protected by arranging a limiting device on the side surface of the valve core; although this type of structure can play certain case protection effect, because protection architecture directly contacts with the valve body inner wall, can cause the damage of device inner wall, influence the sealed effect of device, shorten the life of valve.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome not enough among the prior art, provide a case limit structure with good sealed effect.

The utility model discloses a realize through following technical scheme: the utility model provides a case limit structure, includes spacing seat, spacing seat be the cylinder structure, spacing seat upper surface set up the spacing groove, the spacing groove be the concentric ring shape structure of caving in that sets up with spacing seat, the upper surface center of spacing seat set up the constant head tank, the outer lane of constant head tank set up the fixed orifices that runs through spacing seat.

Preferably, the bottom of the limiting seat is provided with a functional groove of a circular invagination structure.

Furthermore, the functional groove is communicated with the fixing hole.

Preferably, the outer side of the limiting groove is provided with an overflow groove, and the overflow groove is a circular ring-shaped invagination structure which is arranged on the upper surface of the limiting seat and is concentric with the limiting seat.

Furthermore, the cross section of the overflow groove is smaller than that of the limiting groove.

Preferably, the edge of the limiting seat is of a smooth cambered surface structure.

Preferably, the inner side edge of the upper part of the limiting groove, the fixing hole and the positioning groove is of a smooth cambered surface structure.

The beneficial effects of the utility model reside in that: the device can realize bottom fixing and limiting of the valve core through the limiting groove of the limiting seat, can ensure that the bottom structure of the valve core does not deform outwards, can stably move in the high-strength extrusion process, and can ensure that the device can be smoothly installed by matching with the fixing and limiting functions of the fixing hole and the positioning groove, thereby improving the production efficiency of the device; therefore, the condition that the valve core is deformed and damaged can not occur under the long-term high-light extrusion state of the valve core, the use of the whole device of the valve is ensured, the device is arranged at the bottom of the valve core, the surface of the device is smooth, the damage to the inner wall of a valve body of the valve can be avoided, and the service life of the device is ensured.

Drawings

Fig. 1 is a schematic structural diagram of an integral device of a valve core limiting structure.

Fig. 2 is a schematic view of the bottom structure of the device of a valve core limiting structure.

Fig. 3 is a schematic cross-sectional structure diagram of an integral device of a valve core limiting structure.

Fig. 4 is a partial structure enlarged view of a portion a in fig. 3 of a valve core limiting structure.

Fig. 5 is a schematic diagram of a valve core structure of a device matching with the valve core limiting structure.

Wherein: 1. a limiting seat; 2. a limiting groove; 3. positioning a groove; 4. a fixing hole; 5. a functional groove; 6. an overflow trough.

Detailed Description

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.

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 efforts all belong to the protection scope of the present invention.

As shown in fig. 1-5, a valve core limiting structure comprises a limiting seat 1, wherein the limiting seat 1 is of a cylindrical structure, and the shape and the area of the cross section of the limiting seat 1 are the same as those of the internal structure of a corresponding valve body; the upper surface of the limiting seat 1 is provided with a limiting groove 2, the limiting groove 2 is of a circular ring-shaped sunken structure which is concentric with the limiting seat 1, and the limiting groove 2 is used for fixing the bottom edge of the valve core; the center of the upper surface of the limiting seat 1 is provided with a positioning groove 3, and the positioning groove 3 is used for determining the position of the valve element, so that the device is convenient to mount efficiently; the outer lane of constant head tank 3 sets up the fixed orifices 4 that run through spacing seat 1, and fixed orifices 4 are used for carrying on the installation of the rotatory handle of valve fixed, guarantee that the use of device is stable.

The bottom of the limiting seat 1 is provided with the functional groove 5 of the circular invagination structure, the functional groove 5 can effectively realize the integral weight reduction of the device, the device can be conveniently installed, and meanwhile, the production cost of the device can be reduced.

The functional groove 5 is communicated with the fixing hole 4, so that the rotating handle can be taken down smoothly when the valve device is overhauled.

The outer side of the limiting groove 2 is provided with an overflow groove 6, the overflow groove 6 is a circular ring-shaped invagination structure which is arranged on the upper surface of the limiting seat 1 and is concentrically arranged with the limiting seat 1, the sealing effect of the device can be improved, and when a valve core of the device is damaged, a medium inside the device can enter the overflow groove 6 to prevent large-area fluid leakage.

The cross section of the overflow groove 6 is smaller than that of the limiting groove 2, so that leakage faults of the device can be prevented.

The edge of the limiting seat 1 is of a smooth cambered surface structure, so that the inner wall of the valve body of the valve can be prevented from being damaged in the using process of the limiting seat 1.

The edge of the inner side of the upper part of the limiting groove 2, the fixing hole 4 and the positioning groove 3 is of a smooth cambered surface structure, so that the device can be smoothly installed, and the valve core is prevented from being damaged.

Principle of operation

When the device is installed, the device is firstly placed in the valve body of the valve, then the valve core is installed and fixed according to the correct position, and finally the rotating handle of the valve is inserted into the fixing hole 4, so that the installation of the device is completed.

When the device is normally used, the valve core is pressurized, outward expansion deformation occurs, and the limiting seat 1 can limit the bottom of the valve core, so that the valve core is prevented from being excessively deformed, and the valve is prevented from being broken down.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions on some technical features, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of the present invention.

Claims

1. A case limit structure which characterized in that: including spacing seat, spacing seat be the cylinder structure, spacing seat upper surface set up the spacing groove, the spacing groove for with spacing seat concentric ring shape structure of caving in that sets up, the upper surface center of spacing seat set up the constant head tank, the outer lane setting of constant head tank run through the fixed orifices of spacing seat.

2. The valve core limiting structure according to claim 1, wherein: the bottom of the limiting seat is provided with a functional groove of a circular invagination structure.

3. A valve core limiting structure according to claim 2, wherein: the functional groove is communicated with the fixing hole.

4. The valve core limiting structure according to claim 1, wherein: the outer side of the limiting groove is provided with an overflow groove, and the overflow groove is of a circular ring-shaped invagination structure which is arranged on the upper surface of the limiting seat and is concentric with the limiting seat.

5. The valve core limiting structure according to claim 4, wherein: the cross section of the overflow groove is smaller than that of the limiting groove.

6. The valve core limiting structure according to claim 1, wherein: the edge of the limiting seat is of a smooth cambered surface structure.

7. The valve core limiting structure according to claim 1, wherein: the inner side edge of the upper part of the limiting groove, the fixing hole and the positioning groove is of a smooth cambered surface structure.