CN211082883U

CN211082883U - Valve seat with double sealing effect

Info

Publication number: CN211082883U
Application number: CN201921889547.6U
Authority: CN
Inventors: 彭信华
Original assignee: Suzhou Meilong Rubber & Plastic Products Co ltd
Current assignee: Suzhou Meilong Rubber & Plastic Products Co ltd
Priority date: 2019-11-05
Filing date: 2019-11-05
Publication date: 2020-07-24
Anticipated expiration: 2029-11-05

Abstract

The utility model discloses a valve seat with double sealing effect, which comprises a valve seat body, an outer sealing ring and a rubber sealing ring, wherein a ring groove is arranged on the outer side wall of the valve seat body, a ring-shaped sealing plate is arranged in the ring groove, the sealing ring is fixedly connected with the outer sealing ring, the outer sealing ring is welded on the inner wall of the valve body, an inner cavity is arranged in the valve body, a plurality of through holes are arranged at the bottom of the ring groove, an auxiliary ring is fixed in the inner cavity, a plurality of compression cylinders are fixed on the outer side wall of the auxiliary ring, fixing pins are arranged in the compression cylinders in a sliding manner and are fixedly connected with the inner wall of the compression cylinders through fastening springs, a rotating ring is arranged on the inner wall of the valve body in a sliding manner, the rubber sealing ring is laid on the, a linkage shaft is fixed on the rotating rod, and one end of the linkage shaft is rotatably connected with the side surface of the fixing pin.

Description

Valve seat with double sealing effect

Technical Field

The utility model relates to a disk seat with double seal effect belongs to disk seat equipment technical field.

Background

At present, rubber valves are widely used in various mechanical parts due to the characteristics of small volume, light weight, good sealing performance, long service life, flexible installation, large buffering force and the like. The butterfly valve is widely used in various pipelines to adjust or cut off fluid in the pipelines, the rubber valve seat is one of main parts of the butterfly valve, and when the butterfly valve is arranged on a valve body and a rotating shaft drives a valve plate to rotate, the valve plate is contacted with the rubber valve seat, so that the butterfly valve is closed to achieve the sealing effect. The existing valve seat mostly adopts a structure that a full-circle backrest is combined with a valve body, and the axial positioning performance of the structure and the sealing performance between the valve seat and the valve body are poor; the inner wall of the valve seat is a plane, so that the inner wall of the valve seat is inevitably abraded under the condition that the plate body rotates frequently, and the sealing property between the valve seat and the valve plate is poor; in addition, be connected between current disk seat and the valve body and accomplish to guarantee the dismouting of being convenient for of leakproofness again promptly to the practicality of disk seat has been reduced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a disk seat with double sealing effect to solve the problem of proposing among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a valve seat with double sealing effects comprises a valve seat body, an outer sealing ring and a rubber sealing ring, wherein a ring-shaped groove is formed in the outer side wall of the valve seat body, a ring-shaped sealing plate is arranged in the ring-shaped groove and fixedly connected with the outer sealing ring, the outer sealing ring is welded on the inner wall of a valve body, an inner cavity is formed in the valve seat body, a plurality of through holes are formed in the bottom of the ring-shaped groove, an auxiliary ring is fixed in the inner cavity, a plurality of compression cylinders are fixed on the outer side wall of the auxiliary ring, fixing pins are arranged in the compression cylinders in a sliding mode and fixedly connected with the inner wall of the compression cylinders through fastening springs, an annular through groove is formed in the inner wall of the valve body, a rotating ring is arranged in the annular through groove in a sliding mode, the rubber, a linkage shaft is fixed on the rotating rod, and one end of the linkage shaft is rotatably connected with the side surface of the fixing pin.

Preferably, a plurality of fixing holes aligned and communicated with the through holes are formed in the annular sealing plate, and the bolts penetrate through the through holes and are inserted into the fixing holes.

Preferably, a plurality of supporting rods are fixed on two sides of the rotating ring, balls are movably arranged on the end faces of the supporting rods, an annular connecting groove is formed in the inner wall of the annular through groove, and the balls are clamped in the annular connecting groove.

Preferably, the valve body, the annular sealing plate and the outer sealing ring are provided with shaft holes which are aligned and communicated.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model relates to a disk seat with double seal effect, the utility model discloses simple structure, convenient to use can realize the dismouting of being convenient for simultaneously to the double seal of valve body. When the valve is used, the sealing effect between the valve plate and the inner wall of the valve seat can be realized under the action of the rubber sealing ring, and the sealing performance between the valve seat and the valve body is realized under the action of the annular sealing plate and the annular groove; when the valve seat needs to be replaced, the valve plate can be separated from the rubber sealing ring firstly, then the rotating ring is rotated through the annular sealing ring, the rotating ring drives the sleeve to move, the sleeve drives the fixing pin to compress the fastening spring through the rotating rod and the linkage shaft, so that the fixing pin is separated from the fixing hole to achieve separation between the valve seat and the annular sealing plate, and therefore the function of facilitating replacement of the valve seat is achieved.

Drawings

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

FIG. 2 is a schematic view of the internal structure of the valve seat body;

FIG. 3 is a schematic view of a connection structure of the rotating ring and the valve seat body;

FIG. 4 is a side view of the valve seat body.

In the figure: 1. a valve seat body; 101. an annular groove; 102. an inner cavity; 103. a through hole; 104. an annular connecting groove; 2. an outer seal ring; 3. a rubber seal ring; 4. an annular seal plate; 401. a fixing hole; 5. an auxiliary ring; 6. a compression cylinder; 7. a fixing pin; 8. a fastening spring; 9. a rotating ring; 10. a sleeve; 11. a rotating rod; 12. a linkage shaft; 13. a strut; 14. a ball bearing; 15. and the shaft hole.

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.

In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", 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 simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

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 according to specific situations by those skilled in the art.

Referring to fig. 1-4, the present invention provides a technical solution: a valve seat with double sealing effect is characterized in that: the valve seat comprises a valve seat body 1, an outer sealing ring 2 and a rubber sealing ring 3, wherein an annular groove 101 is formed in the outer side wall of the valve seat body 1, an annular sealing plate 4 is arranged in the annular groove 101, the annular sealing plate 4 is fixedly connected with the outer sealing ring 2, the outer sealing ring 2 is welded on the inner wall of a valve body, an inner cavity 102 is formed in the valve seat body 1, a plurality of through holes 103 are formed in the bottom of the annular groove 101, an auxiliary ring 5 is fixed in the inner cavity 102, a plurality of compression barrels 6 are fixed on the outer side wall of the auxiliary ring 5, fixing pins 7 are arranged in the compression barrels 6 in a sliding mode, the fixing pins 7 are fixedly connected with the inner wall of the compression barrels 6 through fastening springs 8, an annular through groove is formed in the inner wall of the valve seat body 1, a rotating ring 9 is arranged in the annular through groove, a rotating rod 11 is rotatably arranged in the sleeve 10, a linkage shaft 12 is fixed on the rotating rod 11, and one end of the linkage shaft 12 is rotatably connected with the side surface of the fixing pin 7.

Further, a plurality of fixing holes 401 aligned and communicated with the through holes 103 are formed in the annular sealing plate 4, and the fixing pins 7 are inserted into the fixing holes 401 through the through holes 103.

Furthermore, a plurality of supporting rods 13 are fixed on two sides of the rotating ring 9, balls 14 are movably arranged on the end faces of the supporting rods 13, an annular connecting groove 104 is formed in the inner wall of the annular through groove, and the balls 14 are clamped in the annular connecting groove 104.

Furthermore, shaft holes 15 which are aligned and communicated are formed in the valve seat body 1, the annular sealing plate 4 and the outer sealing ring 2.

The working principle is as follows: when the valve seat with the double sealing effect is used, firstly, the sealing effect between the valve plate and the inner wall of the valve seat body 1 can be realized under the action of the rubber sealing ring 3, and the sealing performance between the valve seat body 1 and the valve body is realized under the action of the annular sealing plate 4 and the annular groove 101; when the valve seat body 1 needs to be replaced, the valve plate can be separated from the rubber sealing ring 3 firstly, then the rotating ring 9 is rotated through the annular sealing ring 4, the rotating ring 9 drives the sleeve 10 to move, the sleeve 10 drives the fixing pin 7 to compress the fastening spring 8 through the rotating rod and the universal driving shaft 12, then the fixing pin 7 is separated from the fixing hole 401, and the valve seat body 1 is separated from the annular sealing plate 4, so that the valve seat body 1 is replaced conveniently.

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

1. A valve seat with double sealing effect is characterized in that: the valve seat comprises a valve seat body (1), an outer sealing ring (2) and a rubber sealing ring (3), wherein an annular groove (101) is formed in the outer side wall of the valve seat body (1), an annular sealing plate (4) is arranged in the annular groove (101), the annular sealing plate (4) is fixedly connected with the outer sealing ring (2), the outer sealing ring (2) is welded on the inner wall of a valve body, an inner cavity (102) is formed in the valve seat body (1), a plurality of through holes (103) are formed in the bottom of the annular groove (101), an auxiliary ring (5) is fixed in the inner cavity (102), a plurality of compression barrels (6) are fixed on the outer side wall of the auxiliary ring (5), fixing pins (7) are arranged in the compression barrels (6) in a sliding mode, the fixing pins (7) are fixedly connected with the inner wall of the compression barrels (6) through fastening springs (8, the annular is led to and is slided in the groove and is provided with swivel becket (9), rubber seal (3) have been laid to the inner wall of swivel becket (9), be fixed with sleeve (10) on the inner wall of swivel becket (9), the internal rotation of sleeve (10) is provided with bull stick (11), is fixed with universal driving shaft (12) on bull stick (11), and the one end of universal driving shaft (12) is rotated with the side of fixed pin (7) and is connected.

2. A valve seat with a double sealing effect as claimed in claim 1, wherein: a plurality of fixing holes (401) aligned and communicated with the through holes (103) are formed in the annular sealing plate (4), and the fixing pins (7) penetrate through the through holes (103) and are inserted into the fixing holes (401).

3. A valve seat with a double sealing effect as claimed in claim 1, wherein: a plurality of supporting rods (13) are fixed on two sides of the rotating ring (9), balls (14) are movably arranged on the end faces of the supporting rods (13), an annular connecting groove (104) is formed in the inner wall of the annular through groove, and the balls (14) are clamped in the annular connecting groove (104).

4. A valve seat with a double sealing effect as claimed in claim 1, wherein: and the valve seat body (1), the annular sealing plate (4) and the outer sealing ring (2) are provided with shaft holes (15) which are aligned and communicated.