CN210014025U

CN210014025U - Butterfly valve clack

Info

Publication number: CN210014025U
Application number: CN201920799516.5U
Authority: CN
Inventors: 金鑫德; 孟召鹏; 杨庆林; 任艳青
Original assignee: Meide Group Linyi Co Ltd
Current assignee: Meide Group Linyi Co Ltd
Priority date: 2019-05-30
Filing date: 2019-05-30
Publication date: 2020-02-04
Anticipated expiration: 2029-05-30

Abstract

The utility model discloses a butterfly valve clack. A butterfly valve clack, there are sealing means on two terminal surfaces of the upper shaft hole, lower shaft hole of the butterfly valve clack respectively, the sealing means is O-type seal ring, 2O-type seal rings are installed in O-type seal ring troughs set up on the annular position 3-8 mm apart from upper shaft hole, lower shaft hole perimeter on two terminal surfaces of the butterfly valve clack butterfly valve with upper shaft hole, lower shaft hole separately; the butterfly valve clack is vulcanized rubber on a ductile iron framework. Use the utility model discloses after the butterfly valve clack assembly butterfly valve, prevented that the upper and lower shaft hole phenomenon of intaking on the upper and lower shaft hole tip vertical direction of butterfly valve clack from appearing, prevented that the butterfly valve from leaking, improved butterfly valve result of use and life-span.

Description

Butterfly valve clack

Technical Field

The utility model belongs to a valve clack especially belongs to a butterfly valve clack.

Background

The butterfly valve comprises a valve body, a valve clack and a valve shaft. The valve clack has upper shaft hole and lower shaft hole, and at present, the sealed butterfly valve clack of central line sets up the terminal surface in upper and lower shaft hole and is a spherical whole rather than the excircle usually in the market, and the back is opened entirely to current butterfly valve clack, and upper and lower shaft hole phenomenon of intaking appears on the valve clack upper and lower shaft hole tip vertical direction easily sometimes, causes the butterfly valve to leak, influences the use of butterfly valve. How to prevent that the upper and lower shaft hole on the upper and lower shaft hole tip vertical direction of butterfly valve clack from intaking, prevent that the butterfly valve from leaking, improve the problem that butterfly valve result of use and life-span need solve.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that will solve is: a butterfly valve flap is provided. The butterfly valve clack can prevent the upper and lower shaft holes of the upper and lower shaft hole end parts of the butterfly valve clack from water inflow in the vertical direction, prevent the butterfly valve from leakage, and improve the service effect and the service life of the butterfly valve.

The utility model provides a technical scheme of above-mentioned technical problem is: the utility model provides a butterfly valve clack, butterfly valve clack is provided with shaft hole and lower shaft hole, characterized by: two end faces of the butterfly valve clack with an upper shaft hole and a lower shaft hole are respectively provided with a sealing device, the sealing devices are O-shaped sealing rings, the two end faces of the butterfly valve clack with the upper shaft hole and the lower shaft hole are respectively provided with an O-shaped sealing ring groove matched with the O-shaped sealing ring at an annular position which is 3-8 mm cm away from the inner edge of the upper shaft hole and the inner edge of the lower shaft hole, and 2O-shaped sealing rings are respectively arranged in the O-shaped sealing ring grooves which are respectively arranged at annular positions which are 3-8 mm cm away from the inner edge of the upper shaft hole and the lower shaft hole on the two end faces of the butterfly valve clack with the upper shaft hole and the lower shaft hole; the butterfly valve clack is vulcanized rubber on a ductile iron framework.

The utility model has the advantages that: because the sealing devices are respectively arranged on the two end surfaces of the upper shaft hole and the lower shaft hole of the butterfly valve clack of the utility model, the sealing devices are O-shaped sealing rings, 2O-shaped sealing rings are respectively arranged in O-shaped sealing ring grooves which are respectively arranged on the two end surfaces of the upper shaft hole and the lower shaft hole of the valve clack at the annular positions which are 3-8 mm away from the inner edges of the upper shaft hole and the lower shaft hole; the butterfly valve clack is a clack with rubber vulcanized on a ductile iron framework. Use the utility model discloses after the butterfly valve clack assembly butterfly valve, when the butterfly valve clack opens the back completely, set up respectively on two terminal surfaces in shaft hole, lower shaft hole of the butterfly valve clack for the sealing device compensation butterfly valve clack upper and lower shaft hole end compression of O type sealing washer structure strengthens the sealing performance of butterfly valve. The water inlet phenomenon of the upper shaft hole and the lower shaft hole in the vertical direction of the end parts of the upper shaft hole and the lower shaft hole of the butterfly valve clack is prevented, the butterfly valve is prevented from leaking, and the service effect and the service life of the butterfly valve are improved.

Drawings

The present invention will be further explained with reference to the drawings and examples;

FIG. 1 is a schematic structural diagram of a butterfly valve flap of the present invention;

FIG. 2 is a partial enlarged view of the butterfly valve flap of the present invention;

in the drawings: 1. the butterfly valve comprises a butterfly valve clack, 11. an upper shaft hole, 12. a lower shaft hole and 2. O-shaped sealing rings.

Detailed Description

The present invention will be described in further detail with reference to the following examples.

Example 1

As shown in fig. 1 and 2, the butterfly valve flap 1 is provided with an upper shaft hole 11 and a lower shaft hole 12, and is characterized in that: two end faces of the butterfly valve clack 1 with an upper shaft hole 11 and a lower shaft hole 12 are respectively provided with a sealing device, the sealing devices are O-shaped sealing rings 2, O-shaped sealing ring grooves matched with the O-shaped sealing rings 2 are further respectively arranged on the two end faces of the butterfly valve clack 1 with the upper shaft hole 11 and the lower shaft hole 12 at a distance of 3 mm from the inner edges of the upper shaft hole 11 and the lower shaft hole 12, and the 2O-shaped sealing rings 2 are respectively arranged in the O-shaped sealing ring grooves respectively arranged on the annular positions of the two end faces of the butterfly valve clack 1 with the upper shaft hole 11 and the lower shaft hole 12 at a distance of 3 mm from the circumferential edges of the upper shaft hole 11 and the lower shaft hole 12; the butterfly valve clack 1 is a butterfly valve clack with rubber vulcanized on a ductile iron framework.

Example 2

As shown in fig. 1 and 2, the butterfly valve flap 1 is provided with an upper shaft hole 11 and a lower shaft hole 12, and is characterized in that: two end faces of the butterfly valve clack 1 with an upper shaft hole 11 and a lower shaft hole 12 are respectively provided with a sealing device, the sealing devices are O-shaped sealing rings 2, O-shaped sealing ring grooves matched with the O-shaped sealing rings 2 are further respectively arranged on the two end faces of the butterfly valve clack 1 with the upper shaft hole 11 and the lower shaft hole 12 at a distance of 8 mm from the inner edges of the upper shaft hole 11 and the lower shaft hole 12, and the 2O-shaped sealing rings 2 are respectively arranged in the O-shaped sealing ring grooves respectively arranged on the two end faces of the butterfly valve clack 1 with the upper shaft hole 11 and the lower shaft hole 12 at a distance of 8 mm from the circumferential edges of the upper shaft hole 11 and the lower shaft hole 12; the butterfly valve clack 1 is a butterfly valve clack with rubber vulcanized on a ductile iron framework.

From the above description, those skilled in the art can make various changes and modifications without departing from the technical spirit of the present invention, and the present invention is within the protection scope of the present invention. The present invention is not to be considered as the best thing, and belongs to the common general knowledge of the technicians in the field.

Claims

1. The utility model provides a butterfly valve clack, butterfly valve clack is provided with shaft hole and lower shaft hole, characterized by: two end faces of the butterfly valve clack with an upper shaft hole and a lower shaft hole are respectively provided with a sealing device, the sealing devices are O-shaped sealing rings, the two end faces of the butterfly valve clack with the upper shaft hole and the lower shaft hole are respectively provided with an O-shaped sealing ring groove which is matched with the O-shaped sealing ring at an annular position which is 3-8 mm away from the peripheral edges of the upper shaft hole and the lower shaft hole, and 2O-shaped sealing rings are respectively arranged in the O-shaped sealing ring grooves which are respectively arranged at the annular positions which are 3-8 mm away from the upper shaft hole and the lower shaft hole on the two end faces of the butterfly valve clack with the upper shaft hole and the lower shaft hole; the butterfly valve clack is vulcanized rubber on a ductile iron framework.