CN201568632U

CN201568632U - Connecting component of ball valve handle

Info

Publication number: CN201568632U
Application number: CN2009203119962U
Authority: CN
Inventors: 仲建忠
Original assignee: Jiangsu Huasheng Plastic Co Ltd
Current assignee: Wahson Pipeline Technology Co Ltd
Priority date: 2009-10-01
Filing date: 2009-10-01
Publication date: 2010-09-01
Anticipated expiration: 2019-10-01

Abstract

The utility model discloses a connecting component of a ball valve handle, which comprises a valve core, a nut, a handle, a bolt and a cover, wherein the valve core is fixedly connected with the handle. The valve core comprises a valve ball and a valve rod connected with the valve ball into a whole, and the valve rod is positioned on the valve ball. The nut taken as an insert is fixed in the valve rod of the valve core, and the valve rod is provided with a blind hole provided with an upward opening and penetrating through a screw hole of the nut from the top down. The cover is buckled on the cylindrical head part of the bolt. When the connecting component is used, the bolt penetrates through the connection hole of the handle, extends into the blind hole of the valve rod, and is screwed on the nut, thereby fixing the handle on the valve core. The connecting component of the ball valve handle is tighter, and has longer service life.

Description

A kind of connection part of ball valve handle

Technical field

The utility model relates to a kind of connection part of ball valve made of plastic upper handle, belongs to valve technology field.

Background technique

At present, ball valve made of plastic industry and civilian on all have a wide range of applications, existing ball valve made of plastic mainly is made up of component such as valve body, spool and handles.Spool comprises valve ball and the valve rod that is connected on the valve ball, and valve ball rotates and is arranged in the valve body, and valve rod passes valve body.Taper knob is connected to the outer end of valve rod, and by using a self tapping screw to fixedly connected with valve rod.The rotation that drives spool by handle with sleeve is controlled the unlatching of ball valve or is closed.

There are many drawbacks in the Placement of this ball valve handle and spool, at first, only adopts self tapping screw connection handle and valve rod more not fastening; Secondly, self tapping screw is constantly stressed in along with the process of handle and valve core rotation, sliding dental phenomenon will take place for a long time in the past, handle will occur becoming flexible with being connected of spool like this, and may cause the handle obscission, also can cause the control inaccuracy of handle, reduce the working life of ball valve for whole ball valve; And, because sliding dental phenomenon causes the change of valve rod interior threaded hole big, can't rely on the replacing self tapping screw to solve problem, can only change whole ball valve.

Summary of the invention

Technical problem to be solved in the utility model provides the connection part of long ball valve handle in a kind of comparatively fastening, working life.

The technological scheme that realizes the connection part that a kind of ball valve handle is provided of the utility model purpose is: comprise spool, nut, handle, bolt and covering.Spool is fixedlyed connected with handle.Spool comprises valve ball and the valve rod that is connected as a single entity with valve ball, and valve rod is positioned at the top of valve ball.Nut is fixed in the valve rod of spool as inserts, and valve rod is provided with the blind hole that connects the screw that passes nut from the top down that an opening makes progress.During use, bolt pass handle attachment hole, stretch into the blind hole of valve rod and screw on nut, thereby handle is fixed on the spool.

Above-mentioned nut is a hexagon nut.Above-mentioned bolt is a hexagon socket head cap screw.

Above-mentioned covering buckle is installed on the cylinder type head of bolt.

The utlity model has positive effect: after having used the connection part of ball valve handle of the present utility model, owing to used being connected of nut and screw, handle is comparatively fastening with being connected of valve rod, and under long-term situation about using, be not prone to sliding dental phenomenon between nut and the screw, increased the working life of ball valve undoubtedly; Even occur sliding dental phenomenon between nut and the screw, it is loosening to cause handle and being connected of valve rod to occur, and also only needs to change nut and can continue to use, and need not change whole ball valve, economizes on resources.

Description of drawings

Fig. 1 is the schematic perspective view of the ball valve of the connection part of use ball valve handle of the present utility model; Fig. 2 is that the C of Fig. 1 assembly is to view; Fig. 3 is the left view of Fig. 2; Fig. 4 is the A-A face sectional view of Fig. 2; Fig. 5 is the B-B face sectional view of Fig. 3; Fig. 6 is the partial sectional view of handle among Fig. 5; Fig. 7 is the schematic representation after the ball valve among Fig. 1 takes off handle; Fig. 8 is the schematic representation after the ball valve among Fig. 2 takes off handle; Fig. 9 is the schematic representation after the ball valve among Fig. 3 takes off handle.

Mark in the above-mentioned accompanying drawing is as follows: valve body 1, valve core case 11, stub (tube) 12, spherical portion 13, neck 14, arc limiting stopper 15, spool 2, valve ball 21, valve rod 22, joint 23, limiting stopper 24, blind hole 25, nut 3, handle 4, handle body 41, handle 42, cylindrical shell 43, umbrella housing 44, seat board 45, attachment hole 46, semicircle limiting stopper 47 screws 5 hide 6, circular groove 7.

Embodiment

(embodiment 1) sees that Fig. 1 to Fig. 5, the connection part of the ball valve handle of present embodiment comprise spool 2, nut 3, handle 4, bolt 5 and hide 6.

See Fig. 4, Fig. 5 and Fig. 7, spool 2 comprises valve ball 21 and the valve rod 22 that is connected as a single entity with valve ball 21, and valve rod 22 is positioned at the top of valve ball 21.Valve rod 22 comprises the limiting stopper 24 of superposed cuboid shape and is positioned at the columniform joint 23 of bottom.Nut 3 is fixed on as inserts in the limiting stopper 24 of valve rod 22 of spool 2, and the limiting stopper 24 of valve rod 22 is provided with the blind hole 25 that connects the screw that passes nut 3 from the top down that an opening makes progress.Nut 3 is a hexagon nut.Bolt 5 is a hexagon socket head cap screw.

See Fig. 1, Fig. 5 and Fig. 6, handle 4 comprises handle body 41 and the handle 42 that is connected as a single entity.Handle body 41 is the rounding tubular substantially, comprises cylindrical shell 43 and the umbrella housing 44 and the seat board 45 that are connected as a single entity with cylindrical shell 43.Umbrella housing 44 is coated on cylindrical shell 43 peripheries and links to each other with cylindrical shell 43 from upper outside, and the lower end of the ring of umbrella housing 44 is step-like.Seat board 45 be arranged in cylindrical shell 43 and with common upper cavity and the lower chambers that form handle bodies 41 of cylindrical shell 43.

The upper cavity of handle body 41 be shaped as up big and down small step-shaped hole, the cavity that is shaped as square top and round bottom of the lower chamber of handle body 41, and the shape of the limiting stopper 24 of the shape of this lower chamber and valve rod 22 and joint 23 matches.The central authorities of seat board 45 have attachment hole 46, and the aperture of the blind hole 25 of its aperture and spool 2 matches.

Handle 4 is enclosed within on the limiting stopper 24 and joint 23 of valve rod 22 by the lower chamber of handle body 41, thereby makes handle 4 be sleeved on the valve rod 22 of spool 2.

See Fig. 4 and Fig. 5, bolt 5 pass successively the seat board 45 of handle 4 attachment hole 46, stretch into the blind hole 25 of valve rod 22 and screw on nut 3, thereby handle 4 is fixed on the spool 2, and in handle 4 rotating process, drive spool 2 and together rotate.

See Fig. 1 and Fig. 5, hide 6 diameter and match with the diameter of the upper hole section of the upper cavity of the handle body 41 of handle 4, and bottom center has a circular trough, the size of circular trough cooperates with the cylinder type head of bolt 5.Hide 6 and be buckled on the wall of upper hole section of upper cavity of handle body 41, thereby be fixed on the handle body 41 of handle 4, bolt 5 is shielded, and make handle 4 integral body comparatively attractive in appearance by its peripheral edge.

(application examples 1)

See Fig. 1 to Fig. 5, ball valve that should use-case comprises the connection part of valve body 1 and ball valve handle.The connection part of ball valve handle is obtained by embodiment 1.

See Fig. 4, Fig. 5 and Fig. 7 to Fig. 9, hollow valve body 1 comprises valve core case 11 and is connected the stub (tube) 12 at two ends, valve core case 11 left and right sides.Valve core case 11 comprises spherical portion 13, be connected the neck 14 of spherical portion 13 upper ends and be connected the arc limiting stopper 15 of neck 14 upper ends.The joint 23 of the aperture of the upper end hole of spherical portion 13 and valve rod 22 matches.The aperture of neck 14 is greater than the aperture of the upper end hole of spherical portion 13.Arc limiting stopper 15 is along the circumferential setting of neck 14, and radian is 90 °, and is connected the preceding left part of neck 14.

See Fig. 4, Fig. 5 and Fig. 7, the valve ball 21 of spool 2 is provided with a through hole that is provided with vertically.

Spool 2 rotates and is arranged in the valve core case 11 of valve body 1, and spool 2 all seals setting with valve core case 11 each contacting point.The major part of the joint 23 of valve rod 22 and limiting stopper 24 are given prominence to outside spherical portion 13 from the upper end hole of the spherical portion 13 of valve core case 11, and form a circular groove 7 between the neck 14 of joint 23 and valve core case 11.And the diameter of the bottom of the cylindrical shell 43 of the external diameter of circular groove 7 and handle 4 matches.

See Fig. 2 to Fig. 5, when handle 4 was sleeved on the valve rod 22 of spool 2, the semicircle limiting stopper 47 of handle body 41 formed one 90 ° arc notch with the arc limiting stopper of valve body 1 15.

Ball valve that should use-case in use, only need by the arc notch that the arc limiting stopper 15 that makes semicircle limiting stopper 47 that handle 4 cooperates handles 4 and valve body 1 forms do 90 ° counterclockwise or clockwise rotate the switching of controlling ball valve.Position shown in the handle 4 among Fig. 1, Fig. 2 and Fig. 3, ball valve is in opening state, and handle 4 is clockwise rotated 90 °, is about to ball valve and closes.

Claims

1. the connection part of a ball valve handle comprises spool (2) and handle (4), and spool (2) is fixedlyed connected with handle (4); It is characterized in that: assembly also comprises a nut (3) and a bolt (5); Spool (2) comprises valve ball (21) and the valve rod (22) that is connected as a single entity with valve ball (21), and valve rod (22) is positioned at the top of valve ball (21); Nut (3) is fixed in the valve rod (22) of spool (2) as inserts, and valve rod (22) is provided with the blind hole (25) that the screw of nut (3) is passed in perforation from the top down that an opening makes progress; During use, bolt (5) pass handle (4) attachment hole (46), stretch into the blind hole (25) of valve rod (22) and screw on nut (3), thereby handle (4) is fixed on the spool (2).

2. the connection part of a kind of ball valve handle according to claim 1, it is characterized in that: described nut (3) is a hexagon nut; Described bolt (5) is a hexagon socket head cap screw.

3. the connection part of a kind of ball valve handle according to claim 2 is characterized in that: also comprise covering (6); Hiding (6) buckle is installed on the cylinder type head of bolt (5).