CN212839610U

CN212839610U - Sealing fastener for valve

Info

Publication number: CN212839610U
Application number: CN202021178777.4U
Authority: CN
Inventors: 林保义
Original assignee: Suzhou Getep Fluid Equipment Co ltd
Current assignee: Suzhou Getep Fluid Equipment Co ltd
Priority date: 2020-06-23
Filing date: 2020-06-23
Publication date: 2021-03-30
Anticipated expiration: 2030-06-23

Abstract

A sealing fastener for a valve comprises a valve body, a movable valve seat, a rotating block, a rotating shaft and a soft sealing gasket, wherein the movable valve seat is sleeved on the outer wall of the valve body; wherein, seal assembly includes inner seal circle and external seal circle, inner seal circle hugs closely and establishes at valve body outer wall, external seal circle hugs closely and establishes at the activity disk seat inner wall, inner seal circle and external seal circle are equipped with first graphite fiber sealing ring, metal seal ring and second graphite fiber sealing ring. A sealing fastener for valve, be equipped with rotatory piece and pivot, can improve the fastening between activity disk seat and the valve body, multilayer sealing equipment can strengthen the leakproofness of valve body, effectively prevents the valve leakage, has prolonged the life of valve.

Description

Sealing fastener for valve

Technical Field

The utility model belongs to the technical field of the valve, specifically, relate to a sealing fastener for valve.

Background

The valve is a control component in a fluid conveying system and has the functions of cutting off, regulating, backflow preventing and pressure stabilizing. Shunting or overflowing and pressure relief and the like. The valves used in fluid control systems range from the simplest shut-off valves to the most complex valves used in autonomous systems, which are of a wide variety of types and specifications and can be used to control the flow of various types of fluids such as air, water, steam, various corrosive media, slurries, oils, liquid metals, and radioactive media.

The valve is a general mechanical product, and the variety is various, and the range of application is wide, and on the one hand, the valve plays crucial effect in whole equipment and system, and on the other hand, the failure of valve can lead to system, equipment unable normal work, and this requires that the valve must have high reliability, and corresponding reliability research has the effect of playing a vital role in valve research. In the research field of valves at present, the problems of sealing, vibration, noise and reliability test are the focus of attention of people and are also difficult points.

At present, in the use process of a plurality of valves, the sealing surfaces of the valves are washed and corroded by media for a long time, and the fluid leakage caused by poor sealing performance or short sealing service life can cause environmental pollution and economic loss and bring hidden troubles to safe production and operation.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: the utility model aims at providing a sealing fastener for valve, it is practical convenient, solve the sealed problem among the prior art, improve sealing performance, prolong the life of valve.

The technical scheme is as follows: the utility model provides a sealing fastener for a valve, which comprises a valve body, a movable valve seat, a rotating block, a rotating shaft and a soft sealing gasket, wherein the movable valve seat is sleeved on the outer wall of the valve body; wherein, seal assembly includes inner seal circle, external seal circle, first graphite fiber sealing ring, metal seal ring, second graphite fiber sealing ring, inner seal circle hugs closely and establishes at valve body outer wall, external seal circle hugs closely and establishes at movable disk seat inner wall, be equipped with first graphite fiber sealing ring, metal seal ring and second graphite fiber sealing ring between inner seal circle and the external seal circle. The rotary block and the rotary shaft are arranged, so that the fastening effect between the movable valve seat and the valve body of the valve can be improved.

Furthermore, according to the sealing fastener for the valve, the first graphite fiber sealing ring, the metal sealing ring and the second graphite fiber sealing ring are provided with inclined planes.

Further, foretell a sealing fastener for valve, the upper and lower scarf of metal sealing ring with the scarf of first graphite fiber sealing ring, the scarf of second graphite fiber sealing ring closely laminates.

Further, according to the sealing fastener for the valve, the outer wall of the rotating shaft is provided with threads.

Further, the sealing fastener for the valve is characterized in that a gasket is arranged at the top of the movable valve seat.

Further, the sealing fastener for the valve is characterized in that the thread is sleeved in the gasket.

Further, the top end of the valve body of the valve is attached to the bottom of the soft sealing gasket.

Above-mentioned technical scheme can find out, the utility model discloses following beneficial effect has: the sealing fastener for the valve has simple structure and reasonable design, is provided with the rotating block and the rotating shaft, can improve the fastening effect between the movable valve seat and the valve body, can strengthen the sealing performance of the valve body by multilayer sealing equipment, effectively prevents the valve from leaking, and prolongs the service life of the valve; be equipped with first graphite fiber sealing ring, metal seal ring and second graphite fiber sealing ring between inside sealing washer and the outside sealing washer, can reduce because of the wearing and tearing that the running friction produced between the sealing ring, reduce the damage to the sealing ring, extension seal assembly's life has very high spreading value.

Drawings

Fig. 1 is a schematic structural view of a sealing fastener for a valve according to the present invention;

fig. 2 is a partial schematic view of a sealing fastener for a valve according to the present invention;

fig. 3 is a schematic sealing diagram of the sealing fastener for a valve according to the present invention.

In the figure: the valve comprises a valve body 1, a movable valve seat 2, a rotating block 3, a rotating shaft 4, threads 40, a gasket 5, a soft sealing gasket 6, an inner sealing ring 7, an outer sealing ring 8, a first graphite fiber sealing ring 9, a metal sealing ring 10 and a second graphite fiber sealing ring 11.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "a plurality" means two or more unless explicitly defined otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; 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 according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Example 1

The sealing fastener for the valve as shown in fig. 1 comprises a valve body 1, a movable valve seat 2, a rotating block 3, a rotating shaft 4 and a soft sealing gasket 6, wherein the movable valve seat 2 is sleeved on the outer wall of the valve body 1, the soft sealing gasket 6 is arranged at the bottom of the rotating shaft 4 after penetrating through the movable valve seat 2, the rotating block 3 is arranged at the top end of the rotating shaft 4, and a sealing assembly is arranged between the valve body 1 and the movable valve seat 2; wherein, seal assembly includes inner seal circle 7, external seal circle 8, first graphite fiber sealing ring 9, metal seal ring 10, second graphite fiber sealing ring 11, inner seal circle 7 is hugged closely and is established at 1 outer wall of valve body, external seal circle 8 is hugged closely and is established at 2 inner walls of movable valve seat, be equipped with first graphite fiber sealing ring 9, metal seal ring 10 and second graphite fiber sealing ring 11 between inner seal circle 7 and the external seal circle 8.

The first graphite fiber sealing ring 9, the metal sealing ring 10 and the second graphite fiber sealing ring 11 are all provided with inclined planes. The upper and lower inclined cut surfaces of the metal sealing ring 10 are tightly attached to the inclined cut surfaces of the first graphite fiber sealing ring 9 and the second graphite fiber sealing ring 11. The multilayer sealing equipment can strengthen the sealing performance of the valve body of the valve, effectively prevent the valve from leaking and prolong the service life of the valve.

As shown in fig. 2, the outer wall of the rotating shaft 4 is provided with threads 40. And a gasket 5 is arranged at the top of the movable valve seat 2. The thread 40 is sleeved in the gasket 5.

Example 2

As shown in figure 3, the rotating block 3 rotates through the rotating shaft 4, the top end of the valve body 1 is attached to the bottom of the soft sealing gasket 6, and the fastening effect between the movable valve seat 2 and the valve body 1 is improved.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications can be made without departing from the principles of the present invention, and these modifications should also be regarded as the protection scope of the present invention.

Claims

1. A sealing fastener for a valve, characterized by: the rotary valve comprises a valve body (1), a movable valve seat (2), a rotary block (3), a rotary shaft (4) and a soft sealing gasket (6), wherein the movable valve seat (2) is sleeved on the outer wall of the valve body (1), the soft sealing gasket (6) penetrates through the movable valve seat (2) from the bottom of the rotary shaft (4), the rotary block (3) is arranged at the top end of the rotary shaft (4), and a sealing assembly is arranged between the valve body (1) and the movable valve seat (2); wherein, seal assembly includes inner seal circle (7), external seal circle (8), first graphite fiber sealing ring (9), metal seal ring (10), second graphite fiber sealing ring (11), inner seal circle (7) are hugged closely and are established at valve body (1) outer wall, establish at activity disk seat (2) inner wall is hugged closely in external seal circle (8), be equipped with first graphite fiber sealing ring (9), metal seal ring (10) and second graphite fiber sealing ring (11) between inner seal circle (7) and external seal circle (8).

2. A sealing fastener for a valve according to claim 1, wherein: first graphite fiber sealing ring (9), metal seal ring (10) and second graphite fiber sealing ring (11) all are equipped with the scarf.

3. A sealing fastener for a valve according to claim 2, wherein: the upper and lower inclined cut surfaces of the metal sealing ring (10) are tightly attached to the inclined cut surface of the first graphite fiber sealing ring (9) and the inclined cut surface of the second graphite fiber sealing ring (11).

4. A sealing fastener for a valve according to claim 1, wherein: and the outer wall of the rotating shaft (4) is provided with threads (40).

5. A sealing fastener for a valve according to claim 4, wherein: and a gasket (5) is arranged at the top of the movable valve seat (2).

6. A sealing fastener for a valve according to claim 5, wherein: the thread (40) is sleeved in the gasket (5).

7. A sealing fastener for a valve according to claim 1, wherein: the top end of the valve body (1) is attached to the bottom of the soft sealing gasket (6).