CN201763994U

CN201763994U - Ball valve with locking device

Info

Publication number: CN201763994U
Application number: CN2010203006007U
Authority: CN
Inventors: 卓旦春
Original assignee: ZHEJIANG WOERDA COPPER INDUSTRY Co Ltd
Current assignee: ZHEJIANG WOERDA COPPER INDUSTRY Co Ltd
Priority date: 2010-01-13
Filing date: 2010-01-13
Publication date: 2011-03-16
Anticipated expiration: 2020-01-13

Abstract

The utility model provides a ball valve with a locking device, which belongs to the technical field of valves. The ball valve with the locking device solves the problems that the existing valve can be freely opened/closed, has safety potential risk, wastes resources and generates economic loss and the like. The ball valve with the locking device comprises a valve body, a valve core, a valve rod and a handle. The handle is provided with a handle part and a connecting part for connecting the valve rod; the valve core is arranged in the valve body; the valve rod passes through the valve body, the inner end of the valve rod is fixedly connected with the valve core, and the outer end of the valve rod is fixedly connected with the handle; the valve body is provided with a baffle block for limiting the rotating angle range of the handle; the handle is sleeved with a sliding part which abuts against the baffle block to prevent the handle from rotating; and the handle is further provided with a positioning mechanism preventing the sliding part from sliding along the handle. The ball valve with the locking device has the advantage of simple structure, is convenient to use, and is safe and reliable.

Description

A kind of ball valve that has locking device

Technical field

The utility model belongs to field of mechanical technique, relates to a kind of ball valve, particularly a kind of ball valve that has locking device.

Background technique

Valve is installed and used on the pipeline of carrying various fluids or gas usually.Existing valve mechanism is that ball valve or gate valve body and handle are linked together, and pipeline can be opened or close to rotatable handle.As long as but this valve anyone with hand or there are general utility tools such as spanner just can arbitrarily open valve.This is for some high risk industries, may be because people's carelessness, or the valve that uses for family, and sometimes because of children's curiosity, opened the valve that should not open and brought fatal security incident; In addition, in our daily life, when user's malice is not paid time-consuming, because valve can arbitrarily be opened, the way that Gas Company and water utility can't take to die or cut off the water supply is warned the user, can only let alone to continue to use, and makes these companies suffer economic loss.

Summary of the invention

The purpose of this utility model is to exist above-mentioned problem at existing handle, and a kind of ball valve that has locking device simple in structure, esy to use, safe and reliable is provided.

The purpose of this utility model can realize by following technical proposal: a kind of ball valve that has locking device, comprise valve body, spool, valve rod and handle, shown handle has shank and the joint that is used for being connected with valve rod, spool is located in the valve body, valve rod passes valve body, its the inner is connected with spool, its outer end and handle are connected, the block that has the described handle rotational angle range of restriction on the described valve body, it is characterized in that, be socketed with one on the described handle and prevent the slider that handle rotates, on handle, also be provided with the positioning means that prevents that described slider from sliding along described handle by leaning with described block.

Joint have can with the contacted block of a side of block on the valve body, after handle with sleeve contacts the side of block on block and the valve body on the joint, block can be stuck on the side of block and play position-limiting action, opens or closing state thereby valve is in.The slider that is socketed in shank can freely move axially along shank.When positioning means is positioned at slider on the handle can't be mobile the time, slider contacts with block and slider is stuck on the another side of block play position-limiting action, block will be fixed between slider and block like this, make handle to rotate, valve just is in the state of forever closing or opening so again.

In the above-mentioned ball valve that has locking device, described slider has damp block, and the another side of above-mentioned block can contact with damp block.

In the above-mentioned ball valve that has locking device, described positioning means comprises through hole and the snap close that is located on the shank, and described snap close snaps onto in the through hole.By snap close is snapped onto in the through hole, make the slider alignment restrictions handle shank place can't after move, thereby damp block is contacted with the another side of block, this moment block between damp block and block, make handle to rotate, thereby make valve be in the state of forever closing or opening.

In the above-mentioned ball valve that has locking device, described positioning means also comprises the bayonet socket that is located on the slider, and above-mentioned valve rod can be connected in the bayonet socket after running through joint.Be connected to by valve rod and make slides limit can't continue to move in the bayonet socket at the joint place.

Compared with prior art, originally a side that has block on block on the ball valve of locking device and the valve body is contacted, when the another side that slider is positioned at backstop on the handle by snap close contacts with damp block, at this moment block is between damp block and block, make handle to rotate, thereby make valve be in the state of forever closing or opening.And, will open snap close with private key if want handle with sleeve to change the valve opening and closing situation, making slider slide and not contact with block on shank is rotatable handles.As can be seen, this locking handle is not only simple in structure, easy to use, and will open snap close and need private key to open, and other people can't open, thereby have strengthened Security.

Description of drawings

Fig. 1 is the perspective view that originally has the ball valve of locking device.

Among the figure, valve body 1, block 11, handle 2, joint 21, shank 22, through hole 22a, block 23, slider 3, damp block 31, bayonet socket 32, snap close 4, valve rod 5.

Embodiment

Below be specific embodiment of the utility model and in conjunction with the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiments.

Originally the ball valve that has locking device, comprise valve body 1, spool, valve rod 5 and handle 2, spool is located in the valve body 1, valve rod 5 passes valve body 1, and its inner is connected with spool, and its outer end and handle 2 are connected, the block 11 that has restriction handle 2 rotational angle range on the valve body 1, handle 2 comprises shank 22 and the joint 21 that is used for being connected with valve rod 5, wherein joint 21 have can with the contacted block 23 in a side of block 11 on the valve body 1, shank 22 is socketed with slider 3.

Can make slider 3 be positioned at positioning means on the handle 2 being provided with on the shank 22, positioning means comprises through hole 22a, the snap close 4 that is located on the shank 22 and is located at bayonet socket 32 on the slider 3 that valve rod 5 can be connected in the bayonet socket 32 after running through joint 21.By snap close 4 is snapped onto in the through hole 22a, make slider 3 alignment restrictions handle 2 shanks 22 places can't after move, make slider 3 be limited in joint 21 places in the bayonet socket 32 can't to continue to move and be connected to by valve rod 5, slider 3 just is positioned and is limited on the handle 2 and can't moves forward and backward like this.

This locking handle is installed on the valve, and after handle with sleeve 2 contacted the side of block 11 on block 23 and the valve body 1 on the joint 21, block 23 can be stuck on the side of block 11 and play position-limiting action, opens or closing state thereby valve is in.The slider 3 that is socketed in shank 22 can freely move axially along shank 22.When snap close 4 is positioned at slider 3 on the handle 2 can't be mobile the time, slider 3 contacts with block 11 and damp block 31 on the slider 3 is stuck on the another side of block 11 play position-limiting action, block 11 will be fixed between damp block 31 and block 23 like this, make handle 2 to rotate, valve just is in the state of forever closing or opening so again.And, will open snap close 4 with private key if want handle with sleeve 2 to change the valve opening and closing situation, making slider 3 slide and not contact with block 11 on shank 22 is rotatable handles 2.

Specific embodiment described herein only is that the utility model spirit is illustrated.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.

Although this paper has used terms such as valve body 1, block 11, handle 2, joint 21, shank 22, through hole 22a, slider 3, damp block 31, bayonet socket 32, snap close 4, valve rod 5 morely, do not get rid of the possibility of using other term.Using these terms only is in order to describe and explain essence of the present utility model more easily; They are construed to any additional restriction all is contrary with the utility model spirit.

Claims

1. ball valve that has locking device, comprise valve body (1), spool, valve rod (5) and handle (2), shown handle (2) has shank (22) and the joint (21) that is used for being connected with valve rod (5), spool is located in the valve body (1), valve rod (5) passes valve body (1), its the inner is connected with spool, its outer end and handle (2) are connected, the block (11) that has restriction described handle (2) rotational angle range on the described valve body (1), it is characterized in that, be socketed with one on the described handle (2) and prevent the slider (3) that handle (2) rotates, on handle (2), also be provided with the positioning means that prevents that described slider (3) from sliding along described handle (2) by leaning with described block (11).

2. the ball valve that has locking device according to claim 1 is characterized in that, described slider (3) has damp block (31), and the another side of above-mentioned block (11) can contact with damp block (31).

3. the ball valve that has locking device according to claim 1 and 2 is characterized in that, described positioning means comprises through hole (22a) and the snap close (4) that is located on the shank (22), and described snap close (4) snaps onto in the through hole (22a).

4. the ball valve that has locking device according to claim 1 and 2 is characterized in that, described positioning means also comprises the bayonet socket (32) that is located on the slider (3), and above-mentioned valve rod (5) can be connected in the bayonet socket (32) after running through joint (21).