CN2763659Y

CN2763659Y - Joint structure for handle of ball valve

Info

Publication number: CN2763659Y
Application number: CN 200420086573
Authority: CN
Inventors: 应金多
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-12-27
Filing date: 2004-12-27
Publication date: 2006-03-08
Anticipated expiration: 2014-12-27

Abstract

The utility model relates to a connecting structure for a handle of a ball valve, which belongs to the technical field of valves, which solves the problems that the looseness is easy, the strength is low, etc. which exist in the existing connecting structure for a handle. The connecting structure for a handle of a ball valve is arranged on the connecting part of a valve rod and a handle of a ball valve, and the outer end of the valve rod is extended out of the valve body and is connected with the handle; the handle is composed of a handle body forming a cylindrical shape and a handle grip forming a strip shape, and the handle body and the handle grip are fixedly connected together; the handle is provided with a through hole communicated with the handle body and the handle grip; the outer end of the valve rod is connected with a connecting hole, and the handle body is buckled at the outer end of the valve rod; one pin shaft penetrates through the through hole of the handle and the connecting hole of the valve rod, and the valve body is provided with a stop edge used for limiting the rotating angle of the handle. In the connecting structure for a handle of a ball valve, because the valve rod is fixedly connected with the handle by the pin shaft, the connection of the valve rod and the handle are firm, and the mechanical strength is high; meanwhile, after the ball valve adopts the connecting structure, the service life of the product is long and the appearance is beautiful.

Description

The linkage structure of ball valve handle

Technical field

The utility model belongs to valve technology field, relates to a kind of linkage structure of ball valve handle.

Background technique

At present, ball valve is widely used in pipelines such as various water, oil, gas.In existing ball valve, taper knob is connected to the outer end of valve rod, and by nut compressing both is fixed together.This Placement of handle and valve rod causes in use producing a lot of problems, mainly shows:

1, since ball valve in use handle frequently pulled, therefore it is loosening and cause the handle obscission to occur nut easily, has influenced the normal use of ball valve.

2, outside the connection part of valve rod and handle is exposed to, often touch external substances such as rainwater, be easy in use for some time get rusty and rupture.

3, in existing ball valve, handle adopts metal sheet to make, and its mechanical strength is not high, in use might be crooked even by switch out.

Summary of the invention

The purpose of this utility model is at the existing the problems referred to above of the linkage structure of existing ball valve handle, and a kind of linkage structure of ball valve handle of novel structure is provided, and makes it have characteristics such as simple in structure, long service life, mechanical strength height.

The purpose of this utility model can realize by following technical proposal: the linkage structure of this ball valve handle is arranged at the joint of the valve rod and the handle of ball valve, valve body is stretched out in the outer end of valve rod, and link to each other with handle, it is characterized in that, described handle is made up of cylindrical circular handle body and the handle that is bar shaped, handle body and handle are fixed together, and a through hole that connects handle body and handle is arranged, there is attachment hole the outer end of valve rod, the handle body is buckled in the outer end of valve rod, a bearing pin passes the through hole of handle and the attachment hole of valve rod, is provided with the retaining edge that is used to limit the handle rotation angle on valve body.

In the linkage structure of this ball valve handle, by bearing pin handle and valve rod are fixed together, valve rod is together rotated with handle.Therefore, pull handle and make valve core rotation, ball valve is opened or closed by the valve rod transmission.Pull in the handle process, retaining can make ball valve accurately be in complete opening or complete closing state along the effect of playing restriction handle rotation angle.

In the linkage structure of above-mentioned ball valve handle, two handles are arranged on the described handle handlebody, lay respectively at the both sides of handle body.This structure makes the user be convenient to handle with sleeve.

Compared with prior art, the advantage of the linkage structure of this ball valve handle is:

1, because valve rod and handle are connected by bearing pin, make both be connected firmly and the mechanical strength height.

2, because the handle body of handle covers the connection part of valve rod and handle fully, avoid connection part to touch liquid such as rainwater, so product is not easy to get rusty or be damaged its long service life.

3, this linkage structure is simpler, and after ball valve adopted this linkage structure, its beautiful shape had higher utility.

Description of drawings

Fig. 1 is the plan view that has the ball valve of this handle linkage structure.

Fig. 2 is the side view that has the ball valve of this handle linkage structure.

Fig. 3 is the sectional view that has the ball valve of this handle linkage structure.

Fig. 4 has the sectional view of the ball valve of this handle linkage structure in handle and valve rod joint.

Fig. 5 is the perspective exploded view of the linkage structure of this ball valve handle.

Among the figure, 1, handle; 11, handle; 12, handle body; 13, through hole; 2, valve body; 3, valve rod; 31, attachment hole; 4, spool; 5, bearing pin; 6, retaining edge; 7, seal ring; 8, hole cap.

Embodiment

Shown in Fig. 1 to 5, the ball valve that has this handle linkage structure includes valve body 2, spool 4, valve rod 3, bearing pin 5 and handle 1.Handle 1 is loaded on the outside of valve body 2, and is connected with valve rod 3.Between valve body 2 and valve rod 3, be provided with the seal ring 7 that seals.

As shown in Figure 1, in the linkage structure of this ball valve handle, handle 1 is made up of handle body 12 and handle 11, and wherein handle body 12 is cylindrical, and handle 11 is bar shaped.In the present embodiment, two handles 11 are arranged in the handle 1, lay respectively at the both sides of handle body 12.This structure is convenient to handle with sleeve 1.

As shown in Figure 3, handle body 12 is connected as a single entity disposable shaping with handle 11.Handle 1 of the present invention can be made of plastic, also can adopt metallic material to make.

As shown in Figure 3, a through hole 13 is arranged in handle 1, this through hole 13 connects handle body 12 and handle 11.There are 31, bearing pins 5 of attachment hole to pass the through hole 13 of handle 1 and the attachment hole 31 of valve rod 3 in the outer end of valve rod 3.By bearing pin 5 handle 1 and valve rod 3 are fixed together.

In the present embodiment, after bearing pin 5 inserts through hole 13, also be stamped hole cap 8 in the aperture of through hole 13.Hole cap 8 mainly is in order to prevent that rainwater from entering in the through hole 13, also to play the effect that stops that bearing pin 5 is deviate from simultaneously.

As Fig. 5 and shown in Figure 4, on valve body 2, retaining is arranged along 6.Retaining is connected as a single entity with valve body 2 along 6, it with the limit rotation of handle 1 in certain scope.In the present embodiment, the retaining on the valve body 2 has two along 6 quantity, all is in the handle body 12, and limits the rotation angle of handle 1 by the mode of blocking bearing pin 5.The rotational angle range of handle 1 is 90 degree, promptly corresponding to the complete opening of ball valve or close this two states fully.

Claims

1, a kind of linkage structure of ball valve handle, be arranged at the joint of valve rod (3) Yu the handle (1) of ball valve, valve body (2) is stretched out in the outer end of valve rod (3), and link to each other with handle (1), it is characterized in that, described handle (1) is made up of cylindrical circular handle body (12) and the handle (11) that is bar shaped, handle body (12) and handle (11) are fixed together, and a through hole (13) that connects handle body (12) and handle (11) is arranged, there is attachment hole (31) outer end of valve rod (3), handle body (12) is buckled in the outer end of valve rod (3), a bearing pin (5) passes the through hole (13) of handle (1) and the attachment hole (31) of valve rod (3), is provided with to be used to limit the retaining of handle (1) rotation angle along (6) on valve body (2).

2, the linkage structure of ball valve handle according to claim 1 is characterized in that, two handles (11) are arranged on the described handle handlebody (12), lays respectively at the both sides of handle body (12).

3, the linkage structure of ball valve handle according to claim 2 is characterized in that, described handle body (12) is connected as a single entity disposable shaping with handle (11).

4, according to the linkage structure of claim 1,2 or 3 described ball valve handles, it is characterized in that, also be stamped hole cap (8) in the aperture of through hole (13).

5, according to the linkage structure of claim 1,2 or 3 described ball valve handles, it is characterized in that, retaining on the described valve body (2) has two along (6) quantity, all is in the handle body (12), and limits the rotation angle of handle (1) by the mode of blocking bearing pin (5).