CN219345532U

CN219345532U - Rubber valve seat for elastic butterfly valve

Info

Publication number: CN219345532U
Application number: CN202320749786.1U
Authority: CN
Inventors: 富晨帆; 马钰昆; 万志良; 舒俊杰; 张严匀; 韩海涛
Original assignee: Zhejiang Banninger Fluid Control Co ltd
Current assignee: Zhejiang Banninger Fluid Control Co ltd
Priority date: 2023-04-07
Filing date: 2023-04-07
Publication date: 2023-07-14
Anticipated expiration: 2033-04-07

Abstract

The utility model relates to the technical field of elastic sealing center line butterfly valves, in particular to a rubber valve seat for an elastic butterfly valve, which comprises a rubber valve seat and a valve body, wherein a valve rod is arranged in the valve body, a butterfly plate is sleeved in the middle of the valve rod, a boss is arranged at the matching position of the rubber valve seat and the valve body in a protruding mode, and a runner groove matched with the boss is formed in the valve body and used for positioning the rubber valve seat. The rubber valve seat is fixed without using glue in the assembly process, so that the assembly is more convenient.

Description

Rubber valve seat for elastic butterfly valve

Technical Field

The utility model relates to the technical field of elastic sealing center line butterfly valves, in particular to a rubber valve seat for an elastic butterfly valve.

Background

The butterfly valve is a valve which is opened, closed or used for regulating the medium flow by using a disc type opening and closing piece (namely a butterfly plate) to rotate back and forth by about 90 degrees. The butterfly valve has the advantages of simple structure, small volume, light weight, material consumption saving, small installation size, small driving moment, simple and rapid operation, and good flow regulation function and closing sealing property.

In the prior art, the matching surfaces of the rubber valve seat and the valve body of the elastic sealing center line butterfly valve are not provided with a boss and a groove, and the rubber valve seat can be rotated in the assembly process and cannot be positioned in the shaft hole only by a foreign object; and the valve seat can move along with the butterfly plate in use, so that the rubber valve seat is torn and the valve is damaged.

Disclosure of Invention

The utility model aims to provide a rubber valve seat for an elastic butterfly valve, which solves the problems in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a rubber disk seat for elastic butterfly valve, includes rubber disk seat and valve body, the inside valve rod that is provided with of valve body, the butterfly plate has been cup jointed at the middle part of valve rod, the protruding boss that is provided with in cooperation department of rubber disk seat and valve body has seted up on the valve body with boss matched with runner recess for fix a position the rubber disk seat.

Preferably, one end of the valve rod is connected with a transmission mechanism, and the other end of the valve rod is rotatably arranged in a valve rod cavity of the valve body.

Preferably, the outer wall of the butterfly plate is sleeved with an annular sealing ring, and the sealing ring is ethylene propylene diene monomer rubber.

Preferably, the valve body is provided with a shaft hole groove in a penetrating manner in the vertical direction, the shaft hole groove is matched with a valve seat shaft hole boss, and the runner groove is matched with the valve seat runner boss.

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

1. the rubber valve seat is fixed without using glue in the assembly process, so that the assembly is more convenient.

2. The service life of the valve seat is prolonged.

3. The valve of the utility model has more stable performance.

Drawings

Fig. 1 is a front view of the present utility model.

Fig. 2 is an enlarged schematic view of the area a in fig. 1.

Fig. 3 is a top view of the present utility model.

Fig. 4 is an enlarged schematic view of the region B in fig. 3.

In the figure: rubber valve seat 1, valve body 2, valve rod 3, shaft hole recess 4, runner recess 5, disk seat runner boss 6, butterfly plate 7, disk seat shaft hole boss 8.

Description of the embodiments

So that the manner in which the features and advantages of the utility model, as well as the manner in which the features and advantages of the utility model are attained and can be understood in detail, a more particular description of the utility model, briefly summarized below, may be had by reference to the appended drawings and detailed description of the embodiments thereof which are illustrated in the appended drawings.

Referring to fig. 1 to 4, the present utility model provides a technical solution: the utility model provides a rubber disk seat for elastic butterfly valve, includes rubber disk seat 1 and valve body 2, and valve body 2 inside is provided with valve rod 3, and butterfly plate 7 has been cup jointed at the middle part of valve rod 3, and the cooperation department of rubber disk seat 1 and valve body 2 is protruding to be provided with disk seat runner boss 6, has seted up on the valve body 2 with disk seat runner boss 6 matched with runner recess 5, disk seat shaft hole boss 8 matched with shaft hole recess 4 for fix a position rubber disk seat 1.

Further, the valve seat shaft hole boss 8 of the rubber valve seat 1, the valve seat runner boss 6 of the rubber valve seat 1, the shaft hole groove 4 of the valve body 2 and the runner groove 5 of the valve body 2 are matched in the assembly process, so that a positioning device is arranged, and the valve seat can not move along with the butterfly plate in the opening and closing process, so that the rubber valve seat is torn.

One end of the valve rod 3 is connected with a transmission mechanism, and the other end of the valve rod 3 is rotatably arranged in a valve rod cavity of the valve body 2.

The outer wall of the butterfly plate 7 is sleeved with an annular sealing ring, and the sealing ring is ethylene propylene diene monomer rubber.

Further, the cross section of the annular sealing ring is of a T-shaped structure, and the sealing performance of the butterfly valve is greatly improved due to the arrangement.

The valve body 2 is vertically penetrated and provided with a shaft hole groove 4, the shaft hole groove 4 is matched with a valve seat shaft hole boss 8, and the runner groove 5 is matched with the valve seat runner boss 6.

The rubber valve seat is fixed without using glue in the assembly process, so that the assembly is more convenient; and the valve seat shaft hole boss 8 of the rubber valve seat 1, the valve seat runner boss 6 of the rubber valve seat 1, the shaft hole groove 4 of the valve body 2 and the runner groove 5 of the valve body 2 are matched in the assembly process, so that a positioning device is arranged, and the valve seat can not move along with the butterfly plate in the opening and closing process, so that the rubber valve seat is torn. Thereby prolonging the service life of the valve seat; the valve performance is more stable.

The foregoing description of the preferred embodiment of the utility model is provided for the purpose of illustration only, and is not intended to limit the utility model to the particular form disclosed, but on the contrary, the intention is to cover all modifications, equivalents, alternatives, and alternatives falling within the spirit and scope of the utility model.

Claims

1. The utility model provides a rubber disk seat for elastic butterfly valve, includes rubber disk seat (1) and valve body (2), its characterized in that: valve body (2) inside is provided with valve rod (3), butterfly plate (7) have been cup jointed at the middle part of valve rod (3), the cooperation department of rubber disk seat (1) and valve body (2) is protruding to be provided with disk seat runner boss (6) and disk seat shaft hole boss (8), set up on valve body (2) with disk seat runner boss (6) matched with runner recess (5), disk seat shaft hole boss (8) matched with shaft hole recess (4) for fix a position rubber disk seat (1).

2. The rubber valve seat for an elastic butterfly valve according to claim 1, wherein: one end of the valve rod (3) is connected with a transmission mechanism, and the other end of the valve rod (3) is rotatably arranged in a valve rod cavity of the valve body (2).

3. The rubber valve seat for an elastic butterfly valve according to claim 2, wherein: the outer wall of the butterfly plate (7) is sleeved with an annular sealing ring, and the sealing ring is ethylene propylene diene monomer rubber.

4. A rubber valve seat for an elastic butterfly valve according to claim 3, wherein: the valve body (2) is vertically provided with a shaft hole groove (4) in a penetrating mode, the shaft hole groove (4) is matched with a valve seat shaft hole boss (8), and the runner groove (5) is matched with a valve seat runner boss (6).