CN202719261U

CN202719261U - Ball valve with lock

Info

Publication number: CN202719261U
Application number: CN 201220380924
Authority: CN
Inventors: 王顺军
Original assignee: SUZHOU SIP STARD VALVE CO Ltd
Current assignee: SUZHOU SIP STARD VALVE CO Ltd
Priority date: 2012-08-02
Filing date: 2012-08-02
Publication date: 2013-02-06
Anticipated expiration: 2022-08-02

Abstract

The utility model discloses a ball valve with a lock. The ball valve with the lock comprises a valve body and a handle arranged at the upper end of the valve body in rotating mode. An opening limit screw and a closing limit screw are arranged on the upper end face of the valve body, a limit plate is fixedly arranged at the lower end of the handle, the limit plate can rotate between the opening limit screw and the closing limit screw, the limit plate is provided with a limit hole, the upper end face of the valve body is provided with two positioning holes, one positioning hole is located under the limit hole when the limit plate rotates to the opening limit screw, the other positioning hole is located under the limit hole when the limit plate rotates to the closing limit screw, a locking pin is inserted into the limit hole, and the locking pin can be inserted into the two positioning holes. According to the ball valve with the lock, by means of match of the locking pin and the positioning holes, the handle is fixedly locked to be in a normally open state or a normally close state, even if an operator accidentally touches the handle, the handle cannot rotate accordingly, and therefore the phenomena of mis-opening and mis-closing of the ball valve are avoided.

Description

Ball valve with lock

Technical field

The utility model relates to a kind of ball valve, relates in particular to a kind of ball valve with lock.

Background technique

Ball valve is developed by stopcock, its open-shut device is as a spheroid, utilize spheroid to realize the purpose of opening and closing around the axis half-twist of valve rod, ball valve is mainly used in cutting off at pipeline, distribute and change media flow direction, generally can be provided with two stop screws on the valve body of existing ball valve, be convenient to remind the operating personnel to be rotated in place, the general long-term normally open or normally closed state that is in of ball valve, but because the handle of ball valve is longer, and can rotate owing to handle again, the operating personnel touches handle sometimes accidentally, so that ball valve produces the phenomenon that opens by mistake or close by mistake, has brought puzzlement for the project of implementing.

The model utility content

The purpose of this utility model is for above-mentioned the deficiencies in the prior art, and a kind of ball valve with lock that opens by mistake or close phenomenon by mistake that can not produce is provided.

The technical solution of the utility model is achieved in that a kind of ball valve with lock, it comprises valve body, the handle of described valve body upper end is located in rotation, the upper-end surface of described valve body is provided with the unlatching stop screw, close stop screw, the lower end of handle is fixedly installed limiting board, described limiting board can and be closed between the stop screw and rotate at described unlatching stop screw, offer spacing hole on the described limiting board, the upper-end surface of described valve body offers two positioning holes, one of them described positioning hole be positioned at limiting board go to spacing hole when opening stop screw under, another described positioning hole be positioned at limiting board go to spacing hole when closing stop screw under, be inserted with pin in the described spacing hole, and described pin can insert in described two positioning holes all.

Preferably, described positioning hole is passed in the lower end of described pin, and the lower end of described pin offers through hole, and the bearing of trend of described through hole is axial vertical with described pin.

The advantage of the ball valve that the utility model is with lock is: by cooperating the handle fixing and locking at Chang Kai or the normal state that closes of pin and positioning hole, even operating personnel accidentally mistake runs into handle, handle is not therefore rotation also, thereby has avoided the phenomenon that ball valve opens by mistake, mistake is closed.

Description of drawings

The utility model is described in further detail below in conjunction with the embodiment in the accompanying drawing, but do not consist of any restriction of the present utility model.

Fig. 1 is the plan view that the ball valve with lock of present embodiment is in opening state;

Fig. 2 is the plan view that the ball valve with lock of present embodiment is in opening state;

Fig. 3 is the plan view that the ball valve with lock of present embodiment is in closed condition;

Fig. 4 is the plan view that the ball valve with lock of present embodiment is in closed condition.

Among the figure:

The 10-valve body; 11-opens stop screw; 12-closes stop screw; The 13-positioning hole.

The 20-handle; The 21-limiting board; The 22-spacing hole; The 23-pin; The 24-through hole.

Embodiment

Below in conjunction with accompanying drawing preferred embodiment of the present utility model is described in detail, thereby so that advantage of the present utility model and feature can be easier to be it will be appreciated by those skilled in the art that protection domain of the present utility model is made more explicit defining.

Consult Fig. 1 to shown in Figure 4, the ball valve a kind of with lock of present embodiment, it comprises valve body 10, the handle 20 of valve body 10 upper ends is located in rotation, the upper-end surface of valve body 10 is provided with opens stop screw 11, close stop screw 12, the lower end of handle 20 is fixedly installed limiting board 21, limiting board 21 can opened stop screw 11 and close between the stop screw 12 and rotate, offer spacing hole 22 on the limiting board 21, the upper-end surface of valve body 10 offers two positioning holes 13, one of them positioning hole 13 be positioned at limiting board 21 go to spacing hole 22 when opening stop screw 11 under, another positioning hole 13 be positioned at limiting board 21 go to spacing hole 22 when closing stop screw 12 under, be inserted with pin 23 in the spacing hole 22, and pin 23 can insert all in two positioning holes.

Wherein, positioning hole 13 is passed in the lower end of pin 23, and the lower end of pin 23 offers through hole 24, and the bearing of trend of through hole 24 is axial vertical with pin 23.

When handle 20 goes to as shown in Figure 1 and Figure 2 position, this moment, ball valve was in opening state, the direction of handle 20 is parallel with the channel direction of ball valve inside, and limiting board 21 supports to opening stop screw 11 at this moment, and pin 23 inserts near in the positioning hole 13 of opening stop screw 11 and the spacing hole 22, again in through hole 24 interior inserting bolts, this moment, handle 20 pinnings can not be rotated, so can't close ball valve, when needing the operation ball valve, pin 23 and bolt taken off get final product;

When handle 20 goes to as shown in Figure 3, Figure 4 position, this moment, ball valve was in closed condition, the direction of handle 20 is vertical with the channel direction of ball valve inside, and limiting board 21 supports to closing stop screw 12 at this moment, and pin 23 inserts near in the positioning hole 13 of cutting out stop screw 12 and the spacing hole 22, again in through hole 24 interior inserting bolts, this moment, handle 20 pinnings can not be rotated, so can't open ball valve, when needing the operation ball valve, pin 23 and bolt taken off get final product.

Above mode of execution only is explanation technical conceive of the present utility model and characteristics; its purpose is to allow the people that is familiar with technique understand content of the present utility model and is implemented; can not limit protection domain of the present utility model with this; all equivalences of doing according to the utility model Spirit Essence change or modify, and all should be encompassed in the protection domain of the present utility model.

Claims

1. ball valve with lock, it comprises valve body, the handle of described valve body upper end is located in rotation, the upper-end surface of described valve body is provided with the unlatching stop screw, close stop screw, the lower end of handle is fixedly installed limiting board, described limiting board can and be closed between the stop screw and rotate at described unlatching stop screw, it is characterized in that: offer spacing hole on the described limiting board, the upper-end surface of described valve body offers two positioning holes, one of them described positioning hole be positioned at limiting board go to spacing hole when opening stop screw under, another described positioning hole be positioned at limiting board go to spacing hole when closing stop screw under, be inserted with pin in the described spacing hole, and described pin can insert in described two positioning holes all.

2. ball valve with lock according to claim 1, it is characterized in that: described positioning hole is passed in the lower end of described pin, and the lower end of described pin offers through hole, and the bearing of trend of described through hole is axial vertical with described pin.