CN202188160U

CN202188160U - Rotating shaft level of ball valve

Info

Publication number: CN202188160U
Application number: CN201120322516XU
Authority: CN
Inventors: 朱明根; 冉以户; 蒋和生
Original assignee: KUNSHAN SANZHI ELECTRONIC INDUSTRY Co Ltd
Current assignee: KUNSHAN SANZHI ELECTRONIC INDUSTRY Co Ltd
Priority date: 2011-08-31
Filing date: 2011-08-31
Publication date: 2012-04-11
Anticipated expiration: 2021-08-31

Abstract

The utility model discloses a rotating shaft level of a ball valve, which comprises a cylindrical shaft body, the top of the lower part of the shaft body is provided with a protrusion part, on the lower part of the shaft body, the side of the shaft body is provided with a shaft collar part; on the upper part of the shaft body, the side of the shaft body is provided with a plane section; between the shaft collar part and the plane section, the periphery along the shaft body is provided with a circular groove, and a seal washer is arranged in the circular groove. Through the seal washer arranged in the circular groove arranged on the periphery of the shaft body, the seal washer can have the function of sealing when the rotating shaft is inserted into a shaft level inserting hole, meanwhile, the position of the seal washer is also fixed on the periphery of the shaft body, thus avoiding deviation.

Description

The rotating shaft rod of ball valve

Technical field

The utility model relates to a kind of axostylus axostyle, particularly is used for the rotating shaft rod of ball valve.

Background technique

Ball valve is to be used for a kind of valve of making cut-out at pipeline, distributing and change the flow direction of medium, and it only need just can close tight with revolving the operation that turn 90 degrees and very little moment of rotation.The open-shut device of ball valve is a spheroid, and spheroid is made the function that rotation reaches unlatching, closes around the valve body center line.

Wherein, rotating shaft rod is installed on the spheroid, realizes rotation to make things convenient for nut or handle to drive spheroid.This rotating shaft rod comprises columniform axle body, forms in the lower tip of this axle body and non-circularly prominently establishes portion, spheroid is engaged with rotating shaft rod be nonrotating state, also forms collar part on one's body in the lower shaft of rotating shaft rod, prevents that axostylus axostyle from flying out because of hydrodynamic pressure; Simultaneously, also be formed with planar section in the axle body side on the top of axostylus axostyle, this planar section is used for nonrotating state insert nut or handle.

Yet; The sealability of the rotating shaft rod of the ball valve of existing technology is not fine; When mounted; Above spheroid, process earlier the axostylus axostyle patchhole, subsequently axostylus axostyle inserted and be bonded on the spheroid with nonrotating state, simultaneously also need be between collar part and axostylus axostyle patchhole extra installation seal washer with the lift-off seal performance.This extra seal washer causes the sealing effect defect of bad thereby dislocation usually can occur when mounted.

The model utility content

The technical problem that the utility model will solve is: a kind of rotating shaft rod of ball valve is provided, need not can reaches good sealing effect by extra installation seal washer.

In order to achieve the above object, the technological scheme of the utility model employing is:

The rotating shaft rod of ball valve comprises cylindrical axle body, is provided with the prominent portion that establishes in the lower tip of axle body; In the bottom of axle body, the side of axle body is provided with collar part, on the top of axle body; Axle body has planar section on the side; It is characterized in that: between the planar section of collar part and axle body, be provided with annular groove, seal washer is installed in annular groove along the outer peripheral surface of axle body.

As a kind of optimal way, said annular groove has two.

As another kind of optimal way mode, on the upper end of axle body, screw is arranged.

Adopt technique scheme, the utility model has reached following beneficial effect with respect to existing technology:

In the annular groove of on the outer peripheral surface of axle body, establishing seal washer is installed; When rotating shaft rod being inserted axostylus axostyle insert in the hole, seal washer can play the effect of sealing, simultaneously; The position of seal washer also be fixed on axle body around, the situation that can not occur squinting.

Description of drawings

Fig. 1 is the structural representation of the rotating shaft rod of existing technology ball valve;

Fig. 2 is the structural representation of preferred implementation of the rotating shaft rod of the utility model ball valve;

Fig. 3 is the three-dimensional structure diagram of mode of execution shown in Figure 2;

Fig. 4 be Fig. 3 along dotted line A to sectional view.

Embodiment

Below in conjunction with accompanying drawing and preferred implementation the utility model is done further explanation.

What Fig. 1 showed is the structural representation of the rotating shaft rod of existing technology ball valve.It is as shown in the figure,

The rotating shaft rod of ball valve comprises cylindrical axle body 1, is provided with in the lower tip of axle body 1 and non-circularly prominently establishes portion 2, and in the bottom of axle body 1, the side of axle body 1 is provided with collar part 3, on the top of axle body 1, two planar sections 4 is arranged on axle body 1 side.

Fig. 2-Fig. 4 shows is the structural representation of preferred implementation of the rotating shaft rod of the utility model ball valve.As shown in Figure 2, the rotating shaft rod of ball valve comprises cylindrical axle body 1; Be provided with in the lower tip of axle body 1 and non-circularly prominently establish portion 2, in the bottom of axle body 1, the side of axle body 1 is provided with collar part 3; On the top of axle body 1, axle body has planar section 4 on 1 side, between the planar section 4 of collar part 3 and axle body; Outer peripheral surface along axle body 1 is provided with annular groove 5, and seal washer (figure is last not to be shown) is installed in annular groove 5.

Said annular groove 5 has two, can realize two sections sealings like this, further the reinforced seal effect.

Like Fig. 3, shown in Figure 4, on the end face of the upper end of axle body 1, screw 6 is arranged.The planar section of axle body with nonrotating state insert nut or handle in the time, screw can be assisted fixed bias circuit bar and nut or handle, plays further fixing effect.

Combine accompanying drawing and embodiment that the utility model has been done detailed explanation above; But the utility model is not limited to this; The technician in any present technique field is in the ken that is possessed; Under the prerequisite of the utility model aim, can make various distortion and modification to it.

Claims

1. the rotating shaft rod of ball valve comprises cylindrical axle body, is provided with the prominent portion that establishes in the lower tip of axle body; In the bottom of axle body, the side of axle body is provided with collar part, on the top of axle body; Axle body has planar section on the side; It is characterized in that: between the planar section of collar part and axle body, be provided with annular groove, seal washer is installed in annular groove along the outer peripheral surface of axle body.

2. the rotating shaft rod of ball valve according to claim 1, it is characterized in that: said annular groove has two.

3. the rotating shaft rod of ball valve according to claim 1 and 2 is characterized in that: on the upper end of axle body, screw is arranged.