CN218326340U - Separable sealing valve seat structure - Google Patents

Abstract

The utility model discloses a separable sealing valve seat structure, which comprises a first valve seat, wherein a change mechanism is arranged inside the first valve seat; the change mechanism comprises a second valve seat, a first shell, a first spring and a second shell; the outer wall of second disk seat pastes in the inner wall of first disk seat, the inner wall one side fixedly connected with a plurality of first springs of second disk seat, the one end fixedly connected with first casing of first spring. The utility model relates to a disk seat makes technical field, through second disk seat, first casing and first spring, when ball valve case and second casing produced certain degree wearing and tearing, also can carry out the compensation of wearing and tearing through the elasticity of first spring, makes ball valve case and second casing also can guarantee to seal under the condition of certain degree wearing and tearing, compares prior art's split type disk seat, further effectual extension the life of case and disk seat.

Description

Separable sealing valve seat structure

Technical Field

The utility model relates to a disk seat makes technical field, specifically is a but split sealing valve seat structure.

Background

The valve inner detachable surface part is used for supporting the valve core in the fully closed position and forming a sealing pair. For example, the disk seat material of butterfly valve is very extensive, all kinds of rubbers, plastics, metal material all can regard as the disk seat material, the sealed disk seat of the long-time during operation of case of current ball valve can appear wearing and tearing, however directly with trade the disk seat very extravagant, consequently a separable sealed disk seat structure just takes place, split type disk seat that application number is "CN201820963378.5", this utility model discloses a split type disk seat, this disk seat includes back disk seat and preceding disk seat, the disk seat circle seal groove is established to the bottom surface of back disk seat, the disk seat forms whole disk seat before the top surface of back disk seat passes through disk seat circle extrusion formula sealing connection, this utility model discloses simple structure, processing is convenient, manufacturing cost can not improve, and fall into preceding disk seat with the disk seat, back disk seat two parts, need to change whole disk seat when avoiding the sealed face damage of carbide, reduce the change cost of disk seat accessory, greatly improve the sealing performance of disk seat, prolong the disk seat maintenance cycle, improve oil recovery well head efficiency.

The split valve seat in the prior art is formed by combining two detachable valve seats into a split valve seat.

However, when the ball valve needs to operate in an environment with frequent opening and closing, the split valve seat in the prior art causes frequent friction between the ball valve and the valve seat, and the service life of the valve seat and the valve core of the ball valve is reduced.

Disclosure of Invention

Not enough to prior art, the utility model provides a but split body's sealed disk seat structure has solved prior art's components of a whole that can function independently disk seat, need carry out work under the environment of frequent switching when the ball valve, and this can make the friction between ball valve and the disk seat frequent, makes the problem that the life of disk seat and ball valve case reduces.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: a separable sealing valve seat structure comprises a first valve seat, wherein a change mechanism is arranged inside the first valve seat; the change mechanism comprises a second valve seat, a first shell, a first spring and a second shell; the outer wall laminating of second disk seat in the inner wall of first disk seat, a plurality of first springs of inner wall one side fixedly connected with of second disk seat, the first casing of one end fixedly connected with of first spring, the outer wall slip joint of first casing in the recess of second disk seat, the inner wall laminating of first casing has the second casing.

Preferably, a protrusion is fixedly connected to the upper portion of the inner wall of the first valve seat and is connected to the groove in the outer wall of the second valve seat in a matched mode.

Preferably, the outer wall of first casing all sets up flutedly from top to bottom, the recess inner wall fixedly connected with second spring of first casing, the one end fixedly connected with fixed block of second spring, the through-hole has all been seted up from top to bottom to the inner wall of second casing, the recess of first casing and the through-hole of second casing communicate each other, the through-hole inner wall fixedly connected with perforated plate of second casing, the inner wall laminating of perforated plate has the depression bar, the one end fixedly connected with of depression bar presses the cap, the outer wall laminating in the through-hole inner wall of second casing of pressing the cap, the top fixedly connected with third spring of pressing the cap, the one end fixed connection of third spring is in the outer wall of perforated plate, the depression bar laminates each other with one side that the fixed block is close to.

Preferably, a first sealing ring is clamped between the first valve seat and the second valve seat.

Preferably, a second sealing ring is clamped between the second shell and the first valve seat.

The utility model provides a separable sealing valve seat structure. The method has the following beneficial effects: this kind of divisible seals disk seat structure passes through second disk seat, first casing and first spring, when ball valve case and second casing produced the wearing and tearing of certain degree, also can wear and tear the compensation through the elasticity of first spring, makes ball valve case and second casing also can guarantee to seal under the condition of certain degree wearing and tearing, compares prior art's split type disk seat, further effectual extension the life of case and disk seat.

The second spring, the fixing block and the pressing rod are matched to achieve the purpose, when the second shell rubs with the valve core for a long time to cause sealing failure, the second shell and the first shell are rapidly installed and detached, and the working efficiency of the ball valve is improved.

Drawings

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

FIG. 2 is a schematic external view of the first valve seat and boss of FIG. 1;

FIG. 3 is a schematic structural view of the second valve seat and the second housing of FIG. 1;

FIG. 4 is a schematic structural view of the first valve seat, the second valve seat and the first housing of FIG. 1;

fig. 5 is an external view of the present invention.

In the figure: 1. the sealing device comprises a first valve seat, 2, a protrusion, 3, a second valve seat, 4, a first shell, 5, a third spring, 6, a pressing cap, 7, a pressing rod, 8, a fixing block, 9, a second spring, 10, a first spring, 11, a first sealing ring, 12, a second sealing ring, 13, a second shell, 14 and a perforated plate.

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

However, the split valve seat in the prior art can only be matched with the corresponding ball valve core and the corresponding valve body of the ball valve, and when the volumes of the valve core and the valve body are changed within a certain range, the split valve seat cannot be matched with the ball valve to work, so that the universality is low.

In view of this, the utility model provides a but split sealing valve seat structure. Through second disk seat, first casing and first spring, when ball valve case and second casing produced the wearing and tearing of certain degree, also can carry out the compensation of wearing and tearing through the elasticity of first spring, make ball valve case and second casing also can guarantee to seal under the condition of certain degree wearing and tearing, compare prior art's split type disk seat, further effectual life who prolongs case and disk seat.

The following working principles, detailed connecting means thereof, and following main descriptions of the working principles and processes shall be referred to by those skilled in the art to connect the components in this case in sequence, and the specific connecting and operating sequence shall be described below.

The first embodiment is as follows: as can be seen from fig. 1 to 5, a separable sealing valve seat structure comprises a first valve seat 1, wherein a change mechanism is arranged inside the first valve seat 1; the change mechanism comprises a second valve seat 3, a first shell 4, a first spring 10 and a second shell 13; the outer wall of the second valve seat 3 is attached to the inner wall of the first valve seat 1, the first valve seat 1 and the second valve seat 3 can form a basic split valve seat, one side of the inner wall of the second valve seat 3 is fixedly connected with a plurality of first springs 10, one end of each first spring 10 is fixedly connected with a first shell 4, the outer wall of each first shell 4 is slidably clamped in a groove of the second valve seat 3, the inner wall of each first shell 4 is attached with a second shell 13, the first shells 4 and the second shells 10 are matched to realize transverse movement of the first shells 4 and the second shells 13, the left side of each second shell 13 is a surface in contact with a ball valve, and a hard alloy layer is arranged on the left side of each second shell 13;

in the concrete implementation process, be worth pointing out in particular that, basic components of a whole that can function independently disk seat can be constituteed to first disk seat 1 and second disk seat 3, has realized the lateral shifting of first casing 4 and second casing 13 through the cooperation of first spring 10, first casing 4 and second casing 10, the utility model provides a separable sealed disk seat structure. The method has the following beneficial effects: according to the separable sealing valve seat structure, through the second valve seat 3, the first shell 4 and the first spring 10, when the ball valve core and the second shell 13 are abraded to a certain degree, abrasion compensation can be carried out through the elastic force of the first spring 10, so that the sealing can be ensured under the condition that the ball valve core and the second shell 13 are abraded to a certain degree, and compared with the split valve seat in the prior art, the service life of the valve core and the valve seat is further effectively prolonged;

specifically, when the separable sealing valve seat structure is used, after the valve core is installed, the valve core can be in contact with the second shell 13 at the moment, the first shell 4 on the second shell 13 located on two sides of the valve core is made to be away from each other, at the moment, the first shell 4 is abutted against the inner wall of the second valve seat 3, meanwhile, the second valve seat 3 is abutted against the first valve seat 1, the first valve seat 1 is abutted against the inner wall of the valve body, at the moment, the first spring 10 is compressed, then the first spring 10 abuts against the ball valve core with the second shell 13 on the first shell 4 through elastic deformation of the first spring 10, and meanwhile, the first sealing ring 11 and the second sealing ring 12 are clamped tightly, so that the sealing effect is effectively guaranteed.

The second embodiment: as can be seen from fig. 1-5, a protrusion 2 is fixedly connected above the inner wall of the first valve seat 1, and the protrusion 2 is connected to an outer wall groove of the second valve seat 3 in a matching manner;

in the specific implementation, it is worth pointing out that, by means of the projection 2 and the outer wall recess on the second valve seat 3, it is achieved that, when the first spring 10 inside the second valve body 3 fails due to long-term operation, the second valve seat 3 can be removed quickly;

further, grooves are formed in the upper portion and the lower portion of the outer wall of the first shell 4, a second spring 9 is fixedly connected to the inner wall of each groove of the first shell 4, one end of each second spring 9 is fixedly connected with a fixing block 8, the second spring 9 is matched with the fixing block 8 to fix the second shell 13, through holes are formed in the upper portion and the lower portion of the inner wall of the second shell 13, the grooves of the first shell 4 are communicated with the through holes of the second shell 13, a perforated plate 14 is fixedly connected to the inner wall of each through hole of the second shell 13, a pressure rod 7 is attached to the inner wall of the perforated plate 14, one end of the pressure rod 7 is fixedly connected with a pressure cap 6, the outer wall of the pressure cap 6 is attached to the inner wall of each through hole of the second shell 13, a third spring 5 is fixedly connected to the top of the pressure cap 6, one end of the third spring 5 is fixedly connected to the outer wall of the perforated plate 14, one side, which is close to the pressure rod 7 and the fixing block 8, and the through holes of the second shell 13 are detached through the cooperation of the third spring 5, the pressure cap 6, the pressure rod 7, the perforated plate 14;

furthermore, a first sealing ring 11 is clamped between the first valve seat 1 and the second valve seat 3,

in the specific implementation, it is worth mentioning that the first sealing ring 11 is used for sealing.

Furthermore, a second sealing ring 12 is clamped between the second shell 13 and the first valve seat 1,

in the specific implementation, it is worth noting that the second sealing ring 12 is used for sealing.

Specifically, on the basis of the above embodiment, when the second valve seat 3 needs to be detached, the second valve seat 3 is rotated and moved to separate the second valve seat 3 from the first valve seat 1, and when the second housing 13 needs to be detached, the pressing cap 6 is pressed with force at this time, so that the force is transmitted to the pressing rod 7 through the pressing cap 6, and the fixing block in contact with the pressing rod 7 is retracted into the groove of the first housing 4, and meanwhile, due to the structure of the pressing cap 6, the outer wall of the pressing rod 7 is flush with the outer wall of the second housing 13, so that a worker can easily take out the second housing 13.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation. The use of the phrase "comprising" does not exclude the presence of other identical elements in the process, method, article, or apparatus that comprises the same.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate medium, and may be used for communicating the inside of two elements or for interacting with each other, unless otherwise specifically defined, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to the specific circumstances.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. A dividable sealing valve seat structure, comprising a first valve seat (1), characterized in that: a change mechanism is arranged inside the first valve seat (1);

the change mechanism comprises a second valve seat (3), a first shell (4), a first spring (10) and a second shell (13);

the outer wall laminating of second valve seat (3) in the inner wall of first valve seat (1), a plurality of first springs (10) of inner wall one side fixedly connected with of second valve seat (3), the first casing (4) of one end fixedly connected with of first spring (10), the outer wall sliding joint of first casing (4) in the recess of second valve seat (3), the inner wall laminating of first casing (4) has second casing (13).

2. The dividable sealing valve seat structure according to claim 1, wherein: the inner wall top fixedly connected with arch (2) of first disk seat (1), arch (2) cooperation is connected in the outer wall recess of second valve seat (3).

3. The dividable seal valve seat structure according to claim 1, wherein: the outer wall of first casing (4) all sets up flutedly from top to bottom, the recess inner wall fixedly connected with second spring (9) of first casing (4), the one end fixedly connected with fixed block (8) of second spring (9), the through-hole has all been seted up from top to bottom to the inner wall of second casing (13), the recess of first casing (4) communicates with the through-hole of second casing (13) each other, the through-hole inner wall fixedly connected with foraminiferous plate (14) of second casing (13), the inner wall laminating of foraminiferous plate (14) has depression bar (7), the one end fixedly connected with pressure cap (6) of depression bar (7), the outer wall laminating of pressure cap (6) is in the through-hole inner wall of second casing (13), the top fixedly connected with third spring (5) of pressure cap (6), the one end fixed connection of third spring (5) is in the outer wall of foraminiferous plate (14), the one side that depression bar (7) and fixed block (8) are close to each other laminates each other.

4. The dividable seal valve seat structure according to claim 1, wherein: a first sealing ring (11) is clamped between the first valve seat (1) and the second valve seat (3).

5. The dividable sealing valve seat structure according to claim 1, wherein: and a second sealing ring (12) is clamped between the second shell (13) and the first valve seat (1).

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