CN2309474Y

CN2309474Y - Valve with lock

Info

Publication number: CN2309474Y
Application number: CN 97233330
Authority: CN
Inventors: 范维章
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-06-11
Filing date: 1997-06-11
Publication date: 1999-03-03
Anticipated expiration: 2007-06-11

Abstract

The utility model discloses a valve with a lock which belongs to the valve field. The utility model is composed of a valve body 1, a valve rod 4, a valve rod handle 5, a locking head 8, a twisting plate 9, and a lock plug 6. The perpendicular direction of the valve body 1 is provided with a lock shell 10 which is integrally connected with the valve body 1. Screw threads are arranged on the lock plug 6. The lock shell which is contacted with the lock plug 6 is provided with a threaded hole. The interior of the valve body 1 is provided with a technical sleeve 3 whose lower end is provided with an open slot. The valve rod handle 5 is a sleeve with an end cover, and the side wall of the sleeve is provided with at least one hole. The utility model can lock the opening state and the closing state of the valve. The utility model is convenient for the management of gas conveying pipelines and liquid conveying pipelines. The waste of the gas and the liquid is avoided, and the normal use of the pipelines is ensured.

Description

Valve with lock

The utility model relates to a kind of Valve with lock, belongs to valve technology field.

The function that existing valve is only opened and closed, and the function that does not have locking to open or close, thereby to gas, liquid line, gas, wet tank can not strict be controlled, the one, poor stability, the 2nd, can not forcibly make gas, liquid be in flowing state or first valve state, thereby give air feed, water supply, heating and supply the management of other liquid to bring difficulty, cause the waste of gas, liquid.

The purpose of this utility model provides a kind of locking bolt that utilizes and limits the Valve with lock that valve rod rotates.

The purpose of this utility model reaches by the following technical programs.

A technological scheme of the present utility model is: this Valve with lock, by valve body 1, be connected the valve rod 4 on this valve body, the valve stem handle 5 that is connected with this valve rod, tapered end 8, plate 9 and the locking bolt 6 of turning round that is positioned on this tapered end formed, its special way is, with the perpendicular direction of valve body 1, establish the lock housing 10 that is connected as a single entity with it, tapered end 8 is positioned at the cavity of lock housing and is connected with lock housing, locking bolt 6 is turned round on the plate 9 for being sleeved on, threaded column locking bolt, the lock housing of holding locking bolt 6 is provided with screw, establishes the technology cover 3 that closely touches mutually with its inwall in valve body 1, and with locking bolt 6 corresponding sidewalls on establish opening slot, described valve stem handle 5 is the cover of band edge lid, it is sleeved on the valve rod 4, and its end cap is fixedlyed connected with valve rod 4, with locking bolt 6 corresponding sidewalls on establish a hole at least.

A kind of better mode of execution of this scheme is, establishes corresponding with the hole of valve stem handle 5 on valve rod 4 and can hold the positioning hole of locking bolt 6 ends.Like this, further strengthened the effect that locking bolt restriction valve rod 4 rotates.

Second kind of better mode of execution of this scheme is that the positioning hole on the valve rod 4 is two.When valve is a ball valve, two positioning holes on the valve rod 4 are positioned at its same circumferential surface, and the angle between two positioning hole axis is 90 °, and two holes of valve stem handle 5 also are positioned at its same circumferential surface, and the angle of two axially bored lines is 90 °.When valve was shutoff valve, the positioning hole on the valve rod 4 was on the corresponding position when being positioned at valve closing, when another is positioned at valve opening on the corresponding position, when the hole on the valve stem handle 5 is positioned at valve closing on the corresponding position.At this moment the lock on the valve can limit cutting out of valve and open two states.

Second technical solution of the present utility model is, this Valve with lock is positioned at the valve rod 21 on this valve body by valve body 27, is connected the valve stem handle 23 on this valve rod, tapered end 26 and locking bolt 25 are formed, its special way is in valve body 27 upper ends, to establish the lock housing 20 of joining with it, tapered end 26 is positioned at this lock housing and is connected with it, lock housing 20 is sleeved on the valve rod 21, establishes a groove 28 at least in valve rod 21 and the corresponding position of locking bolt, establishes groove 29 on locking bolt 25.

A kind of better mode of execution of this scheme is to be provided with two grooves 28 on valve rod 21.When valve was ball valve, two grooves 28 on the valve rod 21 were positioned at the same circumferential surface of valve rod, and vertical mutually.When valve was shutoff valve, a groove was positioned at on the corresponding position of valve closing state, and another is positioned at on the corresponding position of valve opening state.

The 3rd technical solution of the present utility model is, this Valve with lock is by valve body 47, the valve rod 40 that links to each other with this valve body, be connected the valve stem handle 48 on this valve rod, tapered end 45, by turning round locking bolt 41 compositions that plate 43 links to each other with this tapered end, its special way is, on valve body 47 tops, establish the lock housing 46 of joining with it, tapered end 45 is positioned at this lock housing and is connected with it, lock housing 46 is sleeved on the valve rod 40, at least establish a positioning hole in valve rod 40 and locking bolt 41 corresponding positions, establish screw, establish screw thread on the locking bolt 41 in lock housing 46 and locking bolt 41 corresponding positions.

A kind of better mode of execution of this programme is that the positioning hole on the valve rod 40 is two.When valve was ball valve, two positioning holes were positioned at the same circumferential surface of valve rod 40, and the angle between their axis is 90 °.When valve was shutoff valve, a positioning hole on the valve rod 40 was positioned at on the corresponding position, valve closing position, and another positioning hole is positioned at the valve opening position on the position on corresponding.

More than the Valve with lock of three schemes, except that being suitable for ball valve, shutoff valve, also suitable gate valve etc. all have the valve of valve rod.When the positioning hole on the valve rod is one, a state in only limiting valve closing and open by locking bolt, ordinary circumstance is the closed condition that limits valve.When the positioning hole on the valve rod is two, can limits closing of valve and open two states by locking bolt.If the positioning hole on the valve rod 4 is more than two, decapacitation limits closing and opening outside two states of valve, can also limit the degree of valve opening.For the ease of closing and opening state of Locked valve, can on valve stem handle, establish corresponding indications.Lock housing can be fixedly connected with being connected of valve body in scheme 2, the scheme 3, as riveted joint; Also can be live to connect, as connecting (four directions, six sides, from all directions, 16 sides etc.) and profile of tooth connection in many ways.

The work basic principle is, desires the closed condition of fixed valve, clockwise rotates lock core with key, makes locking bolt enter the positioning hole (or groove) of valve rod, and valve rod can not rotate, and extracts the purpose that key has reached the fixed valve closed condition out.Desire the relief valve door closure state, then use key rotation lock core, make locking bolt withdraw from positioning hole (or locating slot) on the valve rod gradually, until withdrawing from this positioning hole (or locating slot) fully, at this moment valve rod can rotate, thereby reaches the purpose of relief valve door closure state.If on the valve rod two positioning holes are arranged, in like manner, can lock, remove the opening state of valve.

Because the utility model is provided with positioning hole on the valve rod of existing valve, the suit lockset makes the locking bolt of lockset can enter or withdraw from positioning hole (or groove) on the valve rod on the valve rod, is in and opens or the purpose of closed condition thereby reach control valve.When two positioning holes are arranged on the valve rod, closed condition that both can control valve, opening state that again can control valve.When the positioning hole on the valve rod during, can also reach the purpose of control valve flow more than two.So both be convenient to the management of air feed, pipeline or gas storage for liquid, tank body container, guaranteed the normal use of pipeline, container again, avoided the waste of gas, liquid.

The explanation of accompanying drawing drawing:

A kind of structural representation of Fig. 1-the utility model scheme 1;

A kind of structural representation of Fig. 2-the utility model scheme 2;

The A-A sectional drawing of Fig. 3-Fig. 2;

A kind of structural representation of Fig. 4-the utility model scheme 3;

The A-A sectional drawing of Fig. 5-Fig. 4.

Provide embodiment of the present utility model below in conjunction with accompanying drawing, be used for further specifying technical solution.

Embodiment 1, and with reference to figure 1, this is a kind of Valve with lock of scheme 1, and valve is a shutoff valve, and valve body 1 is cast as one with lock housing 10, and vertical mutually, with screw 7 tapered end 8 is connected with lock housing 10.Be provided with screw thread with locking bolt 6 contacted lock housings.A positioning hole is arranged on the sidewall of valve stem handle 5, two positioning holes 12 are arranged, the groove of a lower ending opening is arranged on the sidewall of technology cover 3 at valve rod 4 axial directions.There is a central channel at the center of locking bolt, and it installs to by this central channel cover and turns round on the plate 9.Behind the valve bodies of packing into such as the Sealing 11 that is positioned at valve body, valve rod 4, in the valve body 1 of again technology cover 3 being packed into, and technology cover 3 and valve interior wall tightly are connected as a single entity with pin 2.After valve stem handle 5 covers installed on the valve rod 4, its upper end was connected with the valve rod end.Its working principle and aforementioned working principle are basic identical.Valve with lock shown in Figure 1 is in the lock state of closing.Desire is removed this lock state and is made valve be in the lock state of unlatching.Then rotate counterclockwise lock core with key, locking bolt 6 rotates counterclockwise, withdraw from the positioning hole of valve rod 4 and the hole on the valve stem handle 5 gradually, when the locking bolt end falls back in the opening slot of technology cover 3, rotate counterclockwise valve stem handle 5, valve stem handle drives valve rod 4 and rotates, and move gradually, when the positioning hole 12 of stem lower portion and 5 times end spaceses of valve stem handle rose to the locking bolt opposite position, valve was in the unlatching maximum rating, at this moment clockwise rotate lock core with key, locking bolt 6 moves inward, and when its end entered positioning hole 12, valve rod 4 can not rotate, extract key out, thereby make valve be in the locking states of unlatching.

If change this valve into ball valve, and on valve rod, establish two positioning holes, on valve stem handle, establish two holes, the closed condition of their positioning hole, the corresponding valve in hole, the maximum opening state of another positioning hole, the corresponding valve in hole.Then only need in valve rod 4 same circumferential surfacies, respectively to establish two orthogonal positioning holes, in the same circumferential surface of valve stem handle 5, establish two holes, and positioning hole 12 is corresponding one by one with the hole on the valve stem handle 5 on the valve rod 4, and the structure of other parts is constant, has just formed ball valve with lock.

Here lock housing and valve body are an integral body, and soundness is big, but need other die sinking tool, and cost is higher.

Embodiment 2, and with reference to figure 2, Fig. 3, this is a kind of Valve with lock of scheme 2.Valve is a ball valve, and valve body 27 upper ends are outer hexahedron, and the sled limit of setting up defences, and the bottom of lock housing 20 is interior hexahedron, and the two can coincide and touch mutually.Tapered end 26 is fixedlyed connected with lock housing 20 through screw 24.Groove 29 on the locking bolt 25 is an opening slot, along the axial laying of this locking bolt.Groove 28 on the valve rod 21 is two, and they are positioned at its same circumferential surface, and vertical mutually.After lock housing 20 cover that has a tapered end 26 installed on the valve rod 21, its lower end snapped in the hexahedron valve body the 27 upper end outside, and valve stem handle 23 connects as one through the upper end of screw 22 and valve rod 21.Working principle.Because lock housing 20 is clampings with valve body 27, so lock must be in locking states.When therefore using this valve, must remove locking states earlier.So with key locking bolt 25 is rotated 180 ° earlier, the groove 29 that valve rod 21 is aimed on the locking bolt 25, locking bolt breaks away from the groove 28 on the valve rod 21, the two is free from each other, at this moment valve rod 21 can rotate, if clockwise rotate 90 °, the groove 28 that is positioned at originally with the locking bolt Vertical direction is forwarded on the direction parallel with locking bolt, valve closing, change 180 ° again with key actuated locking bolt 25, at this moment locking bolt enters in the groove 28 of valve rod 21, and valve is by locking, after pulling up key, valve is forced in off position.If remove this locking states, rotate 180 ° again after inserting key, the groove 29 that valve rod 21 is aimed on the locking bolt 25, locking bolt breaks away from the groove 28 on the valve rod 21, at this moment twist valve stem handle 23 counterclockwise, valve rod 21 rotates thereupon, when the groove 28 that parallels with locking bolt on the valve rod 21 return with the perpendicular direction of locking bolt on the time, valve is in opening state.Change 180 ° again with key actuated locking bolt 25, at this moment the groove 29 on the locking bolt 25 forwards the another side of locking bolt to, and the one side of trough of belt does not enter in the groove of valve rod, and valve rod can not rotate, and valve is in the maximum rating of unlatching, pull up key after, just locking the opening state of valve.

If valve is a ball valve, lock housing 20 is connected with the profile of tooth that is connected to of valve body 27, then can reach the purpose of multistage regulating valve flow.

If lock housing 20 was not to connect in many ways with being connected of valve body 27, but riveted joint, then locking bolt 25 can be in separated state with valve rod 21, can save the release step of the first step when using this valve.

If this valve is a stop valve, then 28 1 of two grooves on the valve rod 21 are positioned at this valve rod top, the closed condition of corresponding valve, and another is positioned at the bottom of this valve rod, the maximum opening state of corresponding valve.The principle of lock and unlock is identical.

This valve is compared with embodiment 1, and valve body separates with lock housing, and original valve just gets final product doing corresponding change with the lock housing joint, thereby cost is low, and is easy to maintenance.

Embodiment 3, and with reference to figure 4, Fig. 5, this is a kind of Valve with lock of the 3rd scheme.This valve is a ball valve.Valve body 47 tops are outer hexahedron, and lock housing 46 bottoms are interior hexahedron, just in time are socketed in valve body 47 tops.Lock housing 46 is made up of link 49 and tapered end shell 44, the bottom of link 49 is socketed in valve body 47 tops, its top is sleeved on and is provided with on two valve rods 40 that are in 90 ° of positioning holes 50, two positioning holes 50 are positioned at the same circumferential surface of valve rod 40, and tapered end shell 44 is a drive fit with link 49 tops.Tapered end shell 44 contacts with threaded locking bolt 41 and partly is tapped hole, and link 49 is a through hole with threaded locking bolt 41 corresponding parts.Threaded locking bolt 41 is sleeved on and pulls out on the sheet 43, and tapered end 45 is connected with tapered end shell 44 by screw 42.The working principle of its lock and unlock is substantially the same manner as Example 1, and difference is, this valve is a ball valve, therefore opens, during throttle down, only needs valve rod is rotated 90 °, limits this state with locking bolt again and gets final product.

If this valve is a stop valve, two positioning holes 50 are also arranged on the valve rod, this bottom that is positioned at valve rod 40 of two positioning holes then, the unlatching maximum position of corresponding valve, another is positioned at the top of valve rod 40, the closed position of corresponding valve, the structure of other parts is constant, can form a shutoff valve with lock.It is locked, the working principle of release is identical with embodiment 1.

The lock housing 46 of the technical program can also be an integrative-structure except that being two body structures (being made up of link 49 and tapered end shell 44), and promptly link 49 is an overall structure with tapered end shell 44.

Compare with embodiment 1, when lock housing was two body structures, tapered end shell spare 44 can be a standard piece.On all size valve, use, simple in structure, the valve body that has valve now need only be changed into outer body in many ways, other adds the connected lockset of a cover and can achieve the goal, but soundness is poor slightly.Particularly when lock housing was two body structures, in case tapered end shell 44 is destroyed, valve rod 40 just can rotate, and can lose due effect.

Claims

1, a kind of Valve with lock, it is by valve body (1), be connected the valve rod (4) on this valve body, the valve stem handle (5) that is connected with this valve rod, tapered end (8), turn round plate (9) and the locking bolt (6) that are positioned on this tapered end are formed, it is characterized in that, with the perpendicular direction of valve body (1), establish the lock housing (10) that is connected as a single entity with it, tapered end (8) is positioned at the cavity of lock housing and is connected with lock housing, locking bolt (6) is turned round on the plate (9) for being sleeved on, threaded column locking bolt, the lock housing of holding locking bolt (6) is provided with screw, establishes the technology cover (3) that closely touches mutually with its inwall in valve body (1), and with the corresponding sidewall of locking bolt (6) on establish opening slot, described valve stem handle (5) is the cover of band edge lid, it is sleeved on the valve rod (4), and its end cap is fixedlyed connected with valve rod (4), with the corresponding sidewall of locking bolt (6) on establish a hole at least.

2, by the described Valve with lock of claim 1, it is characterized in that, establishing corresponding on the valve rod (4) and can hold the positioning hole of locking bolt (6) end with the hole on the valve stem handle (5).

3, by the described Valve with lock of claim 2, it is characterized in that, this valve is a ball valve, hole on positioning hole on the valve rod (4) and the valve stem handle (5) is two, two positioning holes are positioned at the same circumferential surface of valve rod (4), angle between two positioning hole axis is 90 °, and two holes are positioned on the same circumferential surface of valve stem handle (5), and the angle of two axially bored lines is 90 °.

4, by the described Valve with lock of claim 2, it is characterized in that this valve is a shutoff valve, positioning hole on the valve rod (4) is two, one is positioned at on the corresponding position of valve closing state, when another is positioned at valve opening on the corresponding position, when the hole on the valve stem handle (5) is positioned at valve closing on the corresponding position.

5, a kind of Valve with lock, it is by valve body (27), be positioned at valve rod (21) on this valve body and be connected valve stem handle (23) on this valve rod, tapered end (26) and locking bolt (25) are formed, and it is characterized in that, in valve body (27) upper end, if the lock housing of joining with it (20), tapered end (26) are positioned at this lock housing and are connected with it, lock housing (20) is sleeved on the valve rod (21), at least establish a groove (28) in valve rod (21) and the corresponding position of locking bolt, on locking bolt (25), establish groove (29).

By the described Valve with lock of claim 5, it is characterized in that 6, this valve is a ball valve, the groove (28) on the valve rod (21) is two, and the two is positioned at the same circumferential surface of valve rod and vertical mutually.

7, by the described Valve with lock of claim 5, it is characterized in that this valve is a shutoff valve, the groove (28) on the valve rod (21) is two, one is positioned at valve and is on the corresponding position of closed condition, and another is positioned at on the corresponding position of valve opening state.

8, a kind of Valve with lock, it is by valve body (47), be positioned at the valve rod (40) on this valve body, be connected the valve stem handle (48) on this valve rod, tapered end (45), by turning round locking bolt (41) composition that plate (43) links to each other with this tapered end, it is characterized in that, on valve body (47) top, establish the lock housing (46) of joining with it, tapered end (45) is positioned at this lock housing and is connected with it, lock housing (46) is sleeved on the valve rod (40), at least establish a positioning hole in valve rod (40) and the corresponding position of locking bolt (41), establish screw in lock housing (46) and the corresponding position of locking bolt (41), locking bolt is established screw thread on (41).

By the described Valve with lock of claim 8, it is characterized in that 9, this valve is a ball valve, the positioning hole on the valve rod (40) is two, and they are positioned at the same circumferential surface of valve rod (40), and the angle between their axis is 90 °.

10, by the described Valve with lock of claim 8, it is characterized in that this valve is a shutoff valve, the positioning hole on the valve rod (40) is two, one is positioned at valve and is on the corresponding position of closed condition, and another is positioned at valve and is on the corresponding position of opening state.