CN209262310U - An a kind of heavy letter lock closes ball valve - Google Patents

Abstract

The utility model discloses an a kind of heavy letter locks for ball valve technical field to close ball valve, including valve body, valve rod is arranged in the upper end inner cavity of the valve body, the top movable grafting rotary screw of the valve rod, the top setting rotation lever of the rotary screw, the inner cavity activity grafting activity mandril of the rotary screw, the four side inner wall of inner cavity of the valve rod is respectively provided with insert, limit hole is arranged far from one end of valve rod inner wall in the insert, clamping apparatus is fixedly installed in the inner wall of the rotary screw, the clamping apparatus includes the collar for being fixed at rotary screw inner wall, four side inner walls of the collar are uniformly arranged active plate, spring lever and gag lever post is arranged close to one end of collar inner wall in the active plate, the other end of the gag lever post runs through rotary screw and extends to the inside of limit hole, what be can be convenient is fixed , while directly extracting movable mandril out when carrying out replacement and repair, easy to disassemble and maintenance.

Description

An a kind of heavy letter lock closes ball valve

Technical field

The utility model relates to ball valve technical field, a specially a kind of heavy letter lock closes ball valve.

Background technique

Ball valve is that common one kind is mounted at the top of water pipe in life, for controlling logical one of the tool of water flow.Ball valve Type is varied, and one letter lock of heavy type in ball valve closes ball valve, and valve rod and rotary screw are typically fixedly connected on one It rises, by rotary screw and the locked connection of valve rod, to keep valve rod more stable during rotation.A but this heavy letter lock Ball valve is closed during use, if the phenomenon that ball valve damages, it has not been convenient to dismount, it is difficult to replacement and maintenance.For this purpose, I Propose that an a kind of heavy letter lock closes ball valve.

Utility model content

The purpose of this utility model is to provide an a kind of heavy letter locks to close ball valve, to solve to propose in above-mentioned background technique The problem of.

To achieve the above object, the utility model provides the following technical solutions: an a kind of heavy letter lock closes ball valve, including valve Valve rod, the top movable grafting rotary screw of the valve rod, the top of the rotary screw is arranged in the upper end inner cavity of body, the valve body Portion's setting rotation lever, the inner cavity activity grafting activity mandril of the rotary screw, and rotation is extended at the top of movable mandril Simultaneously limit plate is arranged in the top of lever, and the four side inner wall of inner cavity of the valve rod is respectively provided with insert, and the insert is far from valve rod Limit hole is arranged in one end of wall, and clamping apparatus is fixedly installed in the inner wall of the rotary screw, and the clamping apparatus includes that fixation is set The collar in rotary screw inner wall is set, four side inner walls of the collar are uniformly arranged active plate, the movable plate Spring lever and gag lever post is arranged close to one end of collar inner wall in block, and the other end of the gag lever post through rotary screw and prolongs The inside of limit hole is extended to, convex block is arranged in the other end of the active plate.

Further, the spring lever includes the blank pipe for being fixed at active plate outer wall, and the inner cavity setting of blank pipe is stretched Contracting spring, and connecting bracket is arranged in the movable end of adjustable spring, and the other end of connecting bracket is connected to the inner wall of collar.

Further, it is respectively provided with fixture block at left and right sides of the limit plate bottom at the top of the movable mandril, and rotates lever Top at left and right sides of be respectively provided with and the matched card slot of fixture block.

Further, the radius of a circle between convex block described in four groups is less than the radius of movable mandril, and the outer wall of convex block is equal It is set as semicircle salient angle, and rounded corner is arranged in the bottom of movable mandril.

Further, the junction of the junction of the valve rod and valve body, rotary screw and valve body is respectively provided with bearing seal Circle.

Further, blind hole is arranged in the inner cavity of the valve rod, and five jiaos of limiting slots are arranged in the inner wall bottom of blind hole, and rotate Bottom setting and the matched five jiaos of limited blocks of five jiaos of limiting slots of screw rod.

Compared with prior art, the utility model has the beneficial effects that the utility model activity grafting in valve rod rotates Screw rod, the activity grafting activity mandril in rotary screw, by the cooperation between movable mandril and clamping apparatus by rotary screw It is connected together with valve rod fixation, movable mandril pushes four groups of gag lever posts to be plugged on the limit of valve rod inner wall during moving downward In the hole of position, so as to easily be fixed, while directly movable mandril being extracted out when carrying out replacement and repair, just In dismounting and maintenance.

Detailed description of the invention

FIG. 1 is a schematic structural view of the utility model；

Fig. 2 is the utility model stem internal structural schematic diagram；

Fig. 3 is the utility model clamping apparatus structural schematic diagram.

In figure: 1 valve body, 2 valve rods, 3 rotary screws, 4 rotation levers, 5 movable mandrils, 6 inserts, 7 limit holes, 8 clamping dresses It sets, 81 collars, 82 active plates, 83 convex blocks, 84 spring levers, 85 gag lever posts.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

Please refer to Fig. 1-3, the utility model provides a kind of technical solution: an a kind of heavy letter lock closes ball valve, including valve body 1, valve rod 2 is arranged in the upper end inner cavity of valve body 1, and rotation is arranged in the top of the top movable grafting rotary screw 3 of valve rod 2, rotary screw 3 Turn lever 4, the inner cavity activity grafting activity mandril 5 of rotary screw 3, and the top of movable mandril 5 extends to the upper of rotation lever 4 Simultaneously limit plate is arranged in side, and the four side inner wall of inner cavity of valve rod 2 is respectively provided with insert 6, and insert 6 is arranged far from one end of 2 inner wall of valve rod Clamping apparatus 8 is fixedly installed in limit hole 7, the inner wall of rotary screw 3, and clamping apparatus 8 includes being fixed in rotary screw 3 Four side inner walls of the collar 81 of wall, collar 81 are uniformly arranged active plate 82, and active plate 82 is close to collar One end setting spring lever 84 and gag lever post 85 of 81 inner walls, the other end of gag lever post 85 through rotary screw 3 and extend to limit Convex block 83 is arranged in the other end of the inside in hole 7, active plate 82.

As shown in figure 3, spring lever 84 includes the blank pipe for being fixed at 82 outer wall of active plate, the inner cavity setting of blank pipe is stretched Contracting spring, and connecting bracket is arranged in the movable end of adjustable spring, and the other end of connecting bracket is connected to the interior of collar 81 Wall can make active plate 82 in the activity of the inner cavity of collar 81 by spring lever 84；

As shown in Figure 1, being respectively provided with fixture block at left and right sides of the limit plate bottom at movable 5 top of mandril, and rotate lever 4 Be respectively provided at left and right sides of top with the matched card slot of fixture block, be connected in card slot by fixture block, the top of portable propelling mandril 5 is solid It is scheduled on the top of rotation lever 4；

As shown in figure 3, the radius of a circle between four groups of convex blocks 83 is less than the radius of movable mandril 5, and the outer wall of convex block 83 It is disposed as semicircle salient angle, and rounded corner is arranged in the bottom of movable mandril 5, it is convenient that movable mandril 5 is allowed to push convex block 83 expand outwardly；

As shown in Figure 1, the junction of the junction of valve rod 2 and valve body 1, rotary screw 3 and valve body 1 is respectively provided with bearing seal Circle guarantees valve rod 2 and valve body 1 by bearing sealed ring, and when rotary screw is flexibly connected with valve body 1 can guarantee leakproofness again；

As shown in Fig. 2, blind hole is arranged in the inner cavity of valve rod 2, and five jiaos of limiting slots are arranged in the inner wall bottom of blind hole, and rotate spiral shell Bottom setting and the matched five jiaos of limited blocks of five jiaos of limiting slots of bar 3, facilitate rotary screw 3 to be plugged in valve rod 2, so that valve rod 2 is more stable with the connection of rotary screw 3.

Embodiment: when installation is with using ball valve, valve rod 2 is mounted on valve body 2 first, then inserts rotary screw 3 It connects in valve rod 2, finally movable mandril 5 is plugged in rotary screw 3, pass through matching between movable mandril 5 and clamping apparatus 8 Rotary screw 3 and valve rod 2 are connected together by conjunction, make movable mandril 5 slide downward in rotary screw 3, the bottom of movable mandril 5 Portion and outer wall eject four groups of convex blocks 83 outward, and convex block 83 is living in collar 81 by active plate 82 and spring lever 84 Dynamic, active plate 82 drives gag lever post 85 to be plugged in limit hole 7, and easily rotary screw 3 can be connected with valve rod 2.

While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.

Claims (6)

1. an a kind of heavy letter lock closes ball valve, including valve body (1), it is characterised in that: valve is arranged in the upper end inner cavity of the valve body (1) Bar (2), the top movable grafting rotary screw (3) of the valve rod (2), the top setting rotation lever of the rotary screw (3) (4), the inner cavity activity grafting activity mandril (5) of the rotary screw (3), and extend to rotation at the top of movable mandril (5) and hold Simultaneously limit plate is arranged in the top of handle (4), and the four side inner wall of inner cavity of the valve rod (2) is respectively provided with insert (6), the insert (6) Limit hole (7) are arranged in one end far from valve rod (2) inner wall, and clamping apparatus (8) are fixedly installed in the inner wall of the rotary screw (3), The clamping apparatus (8) includes the collar (81) for being fixed at rotary screw (3) inner wall, the collar (81) Four side inner walls are uniformly arranged active plate (82), and bullet is arranged close to one end of collar (81) inner wall in the active plate (82) The other end of spring base (84) and gag lever post (85), the gag lever post (85) through rotary screw (3) and extends to limit hole (7) Convex block (83) are arranged in the other end of inside, the active plate (82).

2. an a kind of heavy letter lock according to claim 1 closes ball valve, it is characterised in that: the spring lever (84) includes solid In the blank pipe of active plate (82) outer wall, adjustable spring, and the movable end setting of adjustable spring is arranged in the inner cavity of blank pipe for fixed setting Connecting bracket, and the other end of connecting bracket is connected to the inner wall of collar (81).

3. an a kind of heavy letter lock according to claim 1 closes ball valve, it is characterised in that: at the top of the activity mandril (5) Limit plate bottom at left and right sides of be respectively provided with fixture block, and rotate to be respectively provided at left and right sides of the top of lever (4) and be matched with fixture block Card slot.

4. an a kind of heavy letter lock according to claim 1 closes ball valve, it is characterised in that: between convex block described in four groups (83) Radius of a circle be less than the radius of movable mandril (5), and the outer wall of convex block (83) is disposed as semicircle salient angle, and movable mandril (5) rounded corner is arranged in bottom.

5. an a kind of heavy letter lock according to claim 1 closes ball valve, it is characterised in that: the valve rod (2) and valve body (1) Junction, the junction of rotary screw (3) and valve body (1) is respectively provided with bearing sealed ring.

6. an a kind of heavy letter lock according to claim 1 closes ball valve, it is characterised in that: the inner cavity of the valve rod (2) is set Blind hole is set, and five jiaos of limiting slots are arranged in the inner wall bottom of blind hole, and the bottom setting of rotary screw (3) is matched with five jiaos of limiting slots Five jiaos of limited blocks.