CN203421273U

CN203421273U - Valve with lock

Info

Publication number: CN203421273U
Application number: CN201320527505.4U
Authority: CN
Inventors: 李远柑
Original assignee: Fitok Inc
Current assignee: Fitok Inc
Priority date: 2013-08-26
Filing date: 2013-08-26
Publication date: 2014-02-05
Anticipated expiration: 2023-08-26

Abstract

The utility model discloses a valve with a lock. The valve with the lock comprises a valve body, a valve rod, a handle, a locking piece and a locking bar. A lock hole is formed in the valve body, one end of the valve rod is placed in the valve body and connected with a valve element, the handle is arranged on the valve rod in a sleeved mode and fixed to the valve rod through a locking nut, a groove and a through hole are formed in the handle, the locking piece transversely penetrates through the groove, the locking bar axially penetrates through the through hole and is connected with the locking piece, and an elastic element is arranged between the locking piece and the handle. When the valve is fully opened or closed, the locking piece is pressed down, the locking bar is inserted into the lock hole of the valve body, the hanging lock is hung on the locking piece, and then the valve is in a deadlock state. When the hanging lock is taken down, the elastic element returns and pushes the locking piece and the locking bar to move upward, the locking bar is separated from the valve body, and then the valve in an active state. The valve with the lock is simple in structure, low in cost, safe and reliable.

Description

A kind of locking valve

Technical field

The utility model relates to valve field, relates more specifically to a kind of locking valve.

Background technique

Valve is conventional pipe joint, is used for controlling flowing of pipeline fluid, and at some special occasions, the folding that valve can not be random.The at present conventional valve overwhelming majority is handle type valve, applies certain power on handle, the rotation of handle band ovable valve stem, and then control valve open closed.Yet in actual use, usually because of artificial collision or other factors, touch handle, cause the improper folding of valve, produce unnecessary data waste, and have larger potential safety hazard.In 200920202259.9 patent, a kind of locking ball valve is disclosed, this valve is on valve shell outer wall, to be provided with two projections, the position of projection respectively with the position consistency of handle when opening completely or closing, on handle, by projection one side, being provided with one can be along the snap close of handle longitudinal sliding motion, snap close front end extends to projection direction, snap close front end is provided with a recess that can mesh with projection, on handle, be also provided with a chute longitudinally, on chute, be coated with one for locking or unclamp the locking framework of snap close, locking framework is the knurled screw being located on chute, knurled screw lower end is also provided with the back-up ring that restriction knurled screw is deviate from.When valve is during in normally open or normally closed state, the snap close on sliding handle, makes it match with the projection on valve outer wall, and now handle can not arbitrarily rotate, and makes ball valve in locking state.

Yet, although above-mentioned ball valve is simple in structure, easy to operate, because the snap close on its handle is mobilizable, can not be truly the block of valve is dead, improper open or closed that causes unavoidably valve under personal factor.

Model utility content

In order to solve above-mentioned deficiency of the prior art, the utility model provides a kind of locking valve, and described valve arrangement is simple, with low cost, safe and reliable.The utility model is achieved through the following technical solutions: a kind of locking valve, comprises valve body, valve rod, handle, lock dog, locking bar.On described valve body, there are latch and lockhole, one end of described valve rod is placed in described valve inner and is connected with valve element, described handle is set on described valve rod and by locking nut and is fixed on described valve rod, it is characterized in that described handle is roughly zigzag structure, porose with valve rod fitting surface, there is groove bending place, and described lock dog is horizontally through described groove place, and described locking bar axially connects through lock dog described in described Kong Bingyu.

Further, described lock dog is T shape structure, and its front end has the empty avoiding shaft shoulder and interior threaded hole, and there is lockhole rear end, and lock dog T shape front end is near described valve rod, and rear end is away from described valve rod.

Further, described locking bar is cylindrical structural, and there is screw thread its upper end.

Further, between described lock dog and described handle, have elastic component, described elastic element ring set is on described locking bar.When valve is during in locking state, described elastic element is compressed in the empty avoiding shaft shoulder place of described lock dog.

Further, described valve also comprises the positioning block between described valve body and described handle, described positioning block is set on described valve rod, there are semicircle breach and continuous breach in the edge of described positioning block, when valve is when opening or closing position, lockhole on described handle be positioned at the semicircle breach of described positioning block and described valve body lockhole directly over, the two ends of described continuous breach contact with valve body surface latch respectively.

The utility model compared with prior art, is offered lockhole on valve body, increases lock dog and locking bar at handle place, and locking bar runs through handle and is connected with lock dog, between lock dog and handle, is provided with elastic element.When pressing lock dog downwards, locking bar enters in valve body lockhole, and padlock is installed at lock dog place, and valve is in locking state; When taking off padlock, the elastic element that is positioned at lock dog and handle place resets, and lock dog moves upward together with locking bar, and locking bar leaves valve body lockhole, and handle can arbitrarily rotate, and valve is in active state.

Accompanying drawing explanation

Accompanying drawing 1 is erection drawing of the present utility model, shows the matching relationship of each parts;

Accompanying drawing 2 is perspective exploded view of the present utility model;

Accompanying drawing 3 is the cross-section structure view of handle in the utility model;

Accompanying drawing 4 is the cross-section structure view of lock dog in the utility model;

Embodiment

For the ease of those skilled in the art's understanding, below in conjunction with accompanying drawing, the utility model will be further described.

See figures.1.and.2, the utility model comprises a valve body 10 that has fluid passage and central interior cavity, on valve body 10, there is the cylinder plugs 52 that exceeds upper surface, and

lockhole

70,80,

lockhole

70,80 lays respectively at the position of valve in complete open and close; One connects valve body internal valve element and extends to the valve rod 12 outside valve body, and a handle 26 that is roughly zigzag, and with reference to Fig. 3, handle 26 has hole 14 and the homoaxial through hole 30 coordinating with valve rod 12 and the groove 36 that is positioned at bending place.Handle 26 is fastened on valve rod 12 by spring washer 20 and locking nut 22.

A T shape lock dog 46 is laterally through groove 36 places of handle 26, and with reference to Fig. 4, T shape lock dog 46 has the front end 32 radially increasing, and the front end 32 of increase is convenient to prevent that lock dog 46 from dropping from groove 36.Under front end 32, be the unsettled shaft shoulder 34, being positioned at front end has inverted tapped hole 24, and there is round keyhole 40 rear end.

A cylindrical locking bar 18, bar head has outside thread 42, and bar head 24 axially passes the through hole 30 of handle 26, and is threaded with the tapped hole 24 of lock dog 46.A spring 38 is set on locking bar 18, and between handle 26 and lock dog 46, and when valve is during in locking state, spring 38 is compressed in the unsettled shaft shoulder 34 places of lock dog 46.

The utility model also comprises a positioning block 16 being placed on valve body 1O, described positioning block 16 is roughly disc, there are the center hole 58 matching with valve rod 12 external diameters and the semicircle breach 6O that is positioned at edge part and continuous breach 56, breach 56 is roughly relative with breach 60, the two ends of breach 56 are 66,68, when valve assembles, on breach 6O and handle, through hole 30 is in same axial location.

With reference to Fig. 1, when rotatable handle 26, positioning block 16 together rotates with handle 26, and on positioning block 16, one end 66 of breach 56 contacts with latch 52 on valve body 10, and handle no longer rotates, now valve is opened completely, the semicircle breach 60 of positioning block 16 is positioned at lockhole 70 tops of valve body 10, presses lock dog 46 downwards, and lock dog 46 moves downward with locking bar 18 integral body, spring 38 is compressed in the front end suspending part of lock dog 46, until lock dog 46 no longer moves downward.The end 28 of locking bar 18 inserts in the lockhole 70 of valve body 10 by the half round cut 6O of positioning block 16, and padlock is positioned at the lockhole 4O place (not shown) of lock dog 46, and valve is in locking state.

When wanting cut-off valve, take off padlock, spring 38 resets, and by lock dog 46 jack-up upwards, locking bar 18 is also together with moving upward, and the end 28 of locking bar 18 leaves the lockhole 70 of valve body 10.Rotatable handle 26, until the half round cut 68 on positioning block 16 contacts with latch 52.Now, valve is in complete closed state, and the semicircle breach 60 of positioning block 16 is positioned at lockhole 80 tops of valve body 10.Press lock dog 46 downwards, lock dog 46 moves downward with locking bar 18 integral body, and spring 38 is compressed in the front end suspending part of lock dog 46, until lock dog 46 no longer moves downward.The end 28 of locking bar 18 inserts in the lockhole 8O of valve body 10 by the half round cut 60 of positioning block 16, and padlock is positioned at lockhole 40 place's (not shown)s of lock dog 46, and valve is again in locking state.

The utility model is described with reference to preferred embodiment; the content of mentioning in above-described embodiment is not to restriction of the present utility model; by reading this specification; those skilled in the art can go out many modifications and variations to this structural framing; without departing from the concept of the premise utility, any apparent replacement is all within protection domain of the present utility model.

Claims

1. a locking valve, comprise valve body (10), valve rod (12), handle (26), lock dog (46), locking bar (18), on described valve body (10), there are latch (52) and lockhole (70), (80), one end of described valve rod (12) is placed in described valve body (10) inside and is connected with valve element, described handle (26) is set on described valve rod (12) and goes up and pass through locking nut (22) and be fixed on described valve rod (12), it is characterized in that described handle (26) is roughly zigzag structure, with valve rod (12) fitting surface porose (30), there is groove (36) bending place, described lock dog (46) is horizontally through described groove (36) and locates, described locking bar (18) is axially through described hole (30), described lock dog (46) is connected with described locking bar (18).

2. a kind of locking valve according to claim 1, is characterized in that described lock dog (46) is for T shape structure, and front end (32) below axially increasing has the empty avoiding shaft shoulder (34) and interior threaded hole (24), rear end to have lockhole (40).T shape front end (32) is near described valve rod (12), and rear end is away from described valve rod (12).

3. a kind of locking valve according to claim 1, is characterized in that described locking bar (18) is cylindrical structural, and there is screw thread (42) its upper end.

4. according to a kind of locking valve described in claim 1 and 2, it is characterized in that having elastic component (38) between described lock dog (46) and described handle (26), described elastic element ring set is on described locking bar (18).When valve is during in locking state, described elastic element (38) is compressed in the empty avoiding shaft shoulder (34) of described lock dog (46) and locates.

5. a kind of locking valve according to claim 1, it is characterized in that described valve also comprises the positioning block (16) being positioned between described valve body (10) and described handle (26), described positioning block (16) is set on described valve rod (12), there are semicircle breach (60) and continuous breach (56) in the edge of described positioning block (16), when valve is in performing fighting or during closed position, lockhole (30) on described handle (26) be positioned at the semicircle breach (60) of described positioning block and described valve body lockhole (7O) or (80) directly over, the two end part (66) of described breach (56), (68) contact with the surperficial latch of valve body (10) (52) respectively.