CN205639651U

CN205639651U - Butterfly valve sealing washer U -shaped connects split type clamp plate

Info

Publication number: CN205639651U
Application number: CN201521092642.5U
Authority: CN
Inventors: 王洪运; 张云海; 李季; 喻明武; 杨呈
Original assignee: HUBEI HONGCHENG GENERAL MACHINERY CO Ltd
Current assignee: HUBEI HONGCHENG GENERAL MACHINERY CO Ltd
Priority date: 2015-12-25
Filing date: 2015-12-25
Publication date: 2016-10-12
Anticipated expiration: 2025-12-25

Abstract

Involve butterfly valve seal ring pressing plate's butterfly valve sealing washer U -shaped connects split type clamp plate, it designs into four lamellas or more than four lamellas with seal ring pressing plate, and the prelude of each lamella seal ring pressing plate end be the U -shaped concave surface, and the afterbody be the U -shaped convex surface, and the joint department of the afterbody of the afterbody of the afterbody of first lamella and the prelude of second lamella, second lamella and the prelude of trivalvular prelude, trivalvular afterbody and fourth lamella, fourth lamella and the prelude of first lamella is U -shaped convex -concave joint, and the cross section of first lamella, second lamella, third lamella, fourth lamella is trapezoidal boss. The utility model discloses can prevent that rubber circle from extruding from the gap of every lamella, and dismantle conveniently that rigidity and intensity all obtain the assurance.

Description

Butterfly valve seal circle U-joint split-type pressing plate

Technical field

This utility model relates to butterfly valve seal circle pressing plate.

Background technology

The butterfly plate sealing ring of traditional butterfly valve is typically all and uses integral sealing ring pressing plate to be fixed on butterfly plate by sealing ring, when tubular service, butterfly plate sealing ring dismounting on the valve being connected with pipeline is inconvenient for, and integral sealing ring pressing plate have employed split-type structure, the rigidity of its sealing ring pressing plate and intensity all cannot be guaranteed.

Summary of the invention

The purpose of this utility model is to provide: butterfly valve seal circle U-joint split-type pressing plate, it is that sealing ring platen design becomes split-type, and rigidity and intensity all can guarantee that.

The technical solution of the utility model is:

Sealing ring pressing plate of the present utility model is 4 lobes, the stem of each flap seal circle pressing plate is U-shaped concave surface, afterbody is U-shaped convex surface, the afterbody of the first lobe and the stem of the second lobe, the afterbody of the second lobe and the stem of the 3rd lobe, the afterbody of the 3rd lobe and the stem of pintongs, the afterbody of pintongs and the first lobe the joint of stem be U-shaped convex-concave joint；And first lobe, the second lobe, the 3rd lobe, the cross section of pintongs are trapezoid boss.

Sealing ring pressing plate is more than pintongs or pintongs,

Advantage of the present utility model is as follows:

1, after this utility model uses the split-type structure of more than pintongs or pintongs, dismantle when facilitating butterfly plate sealing ring to change, and the joint between every lobe the most two-by-two uses the lenticular structure of U-shaped, prevent rubber ring from extruding from the gap of point lobe, having damaged sealing ring, rigidity and the intensity of its sealing ring pressing plate are guaranteed；

2, this utility model afterbody cross section uses trapezoid boss structure, forms lever construction, prevents from sealing ring pressing plate rigidity deficiency from causing turning up when assembling and between hold-down bolt, butterfly plate sealing ring.

Accompanying drawing explanation

Fig. 1 is this utility model structural representation；

Fig. 2 is the k-k figure of Fig. 1

Fig. 3 is the A figure of Fig. 1；

Fig. 4 is the B figure of Fig. 2；

Detailed description of the invention

In conjunction with accompanying drawing embodiment, the utility model is described in further detail.

In Fig. 1-4: sealing ring pressing plate is the first lobe 1-1, the second lobe 1-2, the 3rd lobe 1-3, pintongs 1-4 pintongs, first lobe 1-1, the second lobe 1-2, the 3rd lobe 1-3, the stem of pintongs 1-4 are U-shaped concave surface, afterbody is U-shaped convex surface, and the joint of the stem of the afterbody of the first lobe 1-1 and the stem of the second lobe 1-2, the afterbody of the second lobe 1-2 and the stem of the 3rd lobe 1-3, the afterbody of the 3rd lobe 1-3 and the stem of pintongs 1-4, pintongs 1-4 and the first lobe 1-1 is U-shaped convex-concave joint 3；First lobe 1-1, the second lobe 1-2, the 3rd lobe 1-3, the cross section of pintongs 1-4 are trapezoid boss 2.

Claims

1. butterfly plate sealing ring U-joint split-type pressing plate, it is characterized in that: sealing ring pressing plate is the first lobe (1-1), second lobe (1-2), 3rd lobe (1-3), pintongs (1-4) pintongs, first lobe (1-1), second lobe (1-2), 3rd lobe (1-3), the stem of pintongs (1-4) is U-shaped concave surface, afterbody is U-shaped convex surface, the afterbody of the first lobe (1-1) and the stem of the second lobe (1-2), the afterbody of the second lobe (1-2) and the stem of the 3rd lobe (1-3), the afterbody of the 3rd lobe (1-3) and the stem of pintongs (1-4), the afterbody of pintongs (1-4) and the stem joint of the first lobe (1-1) are U-shaped convex-concave joint (3)；And first lobe (1-1), the second lobe (1-2), the 3rd lobe (1-3), the cross section of pintongs (1-4) are trapezoid boss (2).

Butterfly plate sealing ring U-joint split-type pressing plate the most according to claim 1, is characterized in that: sealing ring pressing plate is more than pintongs or pintongs.