CN204439334U

CN204439334U - A kind of welded type adds long pipe ball valve structure for pressure test

Info

Publication number: CN204439334U
Application number: CN201520066815.XU
Authority: CN
Inventors: 朱东升
Original assignee: JIANGSU TONGTIAN MACHINERY Co Ltd
Current assignee: JIANGSU TONGTIAN MACHINERY Co Ltd
Priority date: 2015-01-30
Filing date: 2015-01-30
Publication date: 2015-07-01
Anticipated expiration: 2025-01-30

Abstract

The utility model relates to a kind of welded type and adds long pipe ball valve structure for pressure test, comprises ball valve arm, Hough clamp, back-up ring, blind plate and O type circle; The outside surface of ball valve arm one end is set with a back-up ring, is welded between back-up ring and ball valve arm, the right side of back-up ring is provided with Hough clamp, the left side of back-up ring is provided with blind plate; Hough clamp is sleeved on the outside surface of ball valve arm, the left surface of Haffa clamp againsts the right flank of back-up ring, Hough clamp is spliced by the flange that two are split setting, blind plate is arranged on the side of ball valve arm, the right lateral surface of blind plate has the circle shape groove that an appearance ball valve arm embeds, the bottom land place of circle shape groove is also embedded with an O type circle matched with ball valve arm, and the center of blind plate has the through hole of the rectangular shape of an xsect; Described Hough clamp is connected by stud bolt with between blind plate.The utility model has the advantage of: the utility model structure is simple, can be good at solution and adds the pressure testing of long pipe ball valve, ensure product quality.

Description

A kind of welded type adds long pipe ball valve structure for pressure test

Technical field

The utility model relates to a kind of valve processing tool, and particularly a kind of welded type adds long pipe ball valve structure for pressure test.

Background technology

Ball valve, is defined as in standard GB/T21465-2008 " valve term ": opening and closing element (spheroid) is driven by valve rod, and around the valve that square work ball valve rotates as axis.Utilize the regulating and control that also can be used for fluid, wherein firmly seal between V-type ball valve its V-type ball core and metal seat valve of pile-up welding hard alloy and there is very strong shearing force, be specially adapted to the medium such as fibre-bearing, a small solid material.And multi-pass ball valve not only can the interflow of control medium, shunting and the switching that flows to flexibly on pipeline, also can close arbitrary passage simultaneously and two other passage is connected.This class valve generally should level be installed in the duct.Ball valve is classified: pneumatic ball valve, electrical ball valve, manual ball valve.

Side welded ball valve makes product rejection when welding because the impact of welding factor causes ball valve body to be out of shape, and therefore for above-mentioned reason, by ball valve product improvement, two ends runner pipe end lengthens, thus solves the phenomenon that ball valve body distortion makes product rejection.And another is convenient, due to ball-valve structure extended length, this ball valve can be tested without any pressure testing equipment, cause ball valve pressure testing difficulty.

Summary of the invention

The technical problems to be solved in the utility model is to provide one and can be good at solution and add long pipe ball valve pressure testing welded type and add long pipe ball valve structure for pressure test.

For solving the problems of the technologies described above, the technical solution of the utility model is: a kind of welded type adds long pipe ball valve structure for pressure test, and its innovative point is: comprise ball valve arm, Hough clamp, back-up ring, blind plate and O type circle;

The outside surface of described ball valve arm one end is set with a back-up ring, is welded between described back-up ring and ball valve arm, the right side of back-up ring is provided with Hough clamp, the left side of back-up ring is provided with blind plate;

Described Hough clamp is sleeved on the outside surface of ball valve arm, and the left surface of Haffa clamp againsts the right flank of back-up ring, and described Hough clamp is spliced by the flange that two are split setting, is fixed after two flange splicings by hexagon socket head cap screw;

Described blind plate is arranged on the side of ball valve arm, the right lateral surface of blind plate has the circle shape groove that an appearance ball valve arm embeds, also be embedded with an O type circle matched with ball valve arm at the bottom land place of circle shape groove, the center of described blind plate has the through hole of the rectangular shape of an xsect;

Fixed through Hough clamp and blind plate bolt tightening successively by a stud bolt between described Hough clamp and blind plate.

The utility model has the advantage of: utilize this device to can be good at solution and add the pressure testing of long pipe ball valve, ensure product quality, this apparatus structure is simple, easy to operate.

Accompanying drawing explanation

Fig. 1 is the schematic diagram that welded type of the present utility model adds long pipe ball valve structure for pressure test.

Fig. 2 is the side view that welded type of the present utility model adds the Hough clamp of long pipe ball valve structure for pressure test.

Embodiment

Schematic diagram is as shown in Figure 1 known, and welded type of the present utility model adds long pipe ball valve structure for pressure test and comprises ball valve arm 7, Hough clamp 6, back-up ring 1, blind plate 2 and O type circle 4.

The outside surface of one end of ball valve arm 7 is set with a back-up ring 1, is welded between back-up ring 1 and ball valve arm 7, the right side of back-up ring 1 is provided with Hough clamp 6, the left side of back-up ring 1 is provided with blind plate 2.

Hough clamp 6 is sleeved on the outside surface of ball valve arm 7, and the left surface of Haffa clamp 7 againsts the right flank of back-up ring 1, schematic diagram is as shown in Figure 2 known, and Hough clamp 7 is spliced by the flange that two are split setting, is fixed after two flange splicings by hexagon socket head cap screw 8.

Blind plate 4 is arranged on the side of ball valve arm 7, the right lateral surface of blind plate 4 has the circle shape groove that an appearance ball valve arm 7 embeds, also be embedded with an O type circle 4 matched with ball valve arm 7 at the bottom land place of circle shape groove, have the through hole of the rectangular shape of an xsect in the center of blind plate 4.

Fixed with bolt tightening through Hough clamp 6 and blind plate 4 successively by a stud bolt 5 between Hough clamp 6 and blind plate 4, the bolt regulating two can be utilized simultaneously, thus make O type circle 4 be subject to the end face extruding of ball valve arm 7, to play the effect of sealing.

More than show and describe ultimate principle of the present utility model and principal character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; what describe in above-described embodiment and instructions just illustrates principle of the present utility model; under the prerequisite not departing from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.

Claims

1. welded type adds a long pipe ball valve structure for pressure test, it is characterized in that: comprise ball valve arm, Hough clamp, back-up ring, blind plate and O type circle;