CN208951323U - A kind of novel movable flap of shut-off valve - Google Patents

Abstract

The utility model discloses a kind of novel movable flaps of shut-off valve, including valve body, valve seat, valve deck, valve rod and valve stem nut, the bottom end of valve rod is fixedly connected with disk, the bottom end movable sleeve of valve rod is connected to moving valve valve, the upper surface of movable flap offers deep trouth, and the cell wall of deep trouth open up it is fluted, the cell wall of groove is opened up there are two symmetrical circular through hole, and the hole wall of circular through hole is fixedly embedded at thread barrel, the inner wall of two thread barrels, which is threadedly engaged, is connected with threaded rod, the opposite one end of two threaded rods passes through rolling bearing and is rotatably connected to arc fixture block, cavity is offered in two threaded rods.The utility model avoids movable flap and relatively rotates with valve rod, it even can be to the problem of causing movable flap to fall off, the normal use of shut-off valve is ensured, pass through seal closure and movable flap two seals simultaneously, shut off efficiency and the leakproofness for improving shut-off valve, also improve the quality of shutting off of shut-off valve.

Description

A kind of novel movable flap of shut-off valve

Technical field

The utility model relates to shut-off valve technical field more particularly to a kind of novel movable flaps of shut-off valve.

Background technique

Shut-off valve is also known as pipe valve valve, belongs to forced seal formula valve, so when valve is closed, it is necessary to apply to flap and press Power is not leaked with forced seal face, and when medium is by entering valve below flap, the resistance overcome required for operating force, is valve The frictional force of bar and filler and the thrust as caused by the pressure of medium, the power of closing valve is bigger than the power of valve opening door, so valve rod Diameter it is big, the failure of valve rod bending otherwise can occur, be divided into three kinds by connection type: flanged joint, screwed connection, welding Connection, after the appearance of the valve of self-sealing, the medium flow direction of shut-off valve just changes by entering valve chamber above flap, at this moment in medium pressure Under power effect, the power of closing valve is small, and the power of valve opening door is big, and the diameter of valve rod can be reduced correspondingly, meanwhile, it is acted in medium Under, the valve of this form is also relatively tight.

With valve rod using being threadedly coupled, threaded connection is easy to make movable flap in use existing activity flap It relatively rotates with valve rod, or even can arrive causes movable flap to fall off, and causes shut-off valve can not normal use.

Utility model content

Purpose of the utility model is to solve being connected between movable flap and valve rod in the prior art to use It is easy to that movable flap is made to relatively rotate with valve rod in journey, or even can propose to the problem of causing movable flap to fall off A kind of shut-off valve novel movable flap.

To achieve the goals above, the utility model adopts the technical scheme that

A kind of novel movable flap of shut-off valve, including valve body, valve seat, valve deck, valve rod and valve stem nut, the valve rod Bottom end is fixedly connected with disk, and the bottom end movable sleeve of the valve rod is connected to moving valve valve, and the upper surface of the activity flap opens up There is a deep trouth, and the cell wall of deep trouth opens up fluted, the cell wall of the groove opens up that there are two symmetrical circular through holes, and circle The hole wall of shape through-hole is fixedly embedded at thread barrel, and the inner wall of two thread barrels, which is threadedly engaged, is connected with threaded rod, and two The opposite one end of the threaded rod passes through rolling bearing and is rotatably connected to arc fixture block, opens up in two threaded rods free Chamber slidably connects piston in the cavity, and the piston is fixedly connected with connecting rod, the connecting rod far from the side of valve rod One end far from piston passes through the side wall of cavity and extends outwardly, and the bar wall of the valve rod is fixed with auxiliary seal mechanism.

Preferably, the auxiliary seal mechanism includes the support plate being fixedly attached with valve rod bar wall, under the support plate Surface is fixedly connected with multiple springs, and the bar wall movable sleeve of the valve rod is connected to seal closure, the bottom end of multiple springs with The upper surface of seal closure is fixedly connected, and the upper surface of the support plate is opened up there are two circular hole, and the hole wall of circular hole is flexibly connected There is gag lever post, the bottom end of two gag lever posts is fixedly connected with the upper surface of seal closure.

Preferably, the lower surface of the disk is embedded with multiple Universal casters.

Preferably, the connecting rod is fixedly connected with rotating block far from one end of piston, and the side wall of the activity flap is opened Equipped with the card slot matched with rotating block.

Preferably, the side wall of the piston is fixedly connected with sliding block, and the inner wall of the cavity is offered to match with sliding block Sliding slot.

Preferably, the arc fixture block is located at the top of disk.

Compared with prior art, the utility model provides a kind of novel movable flap of shut-off valve, has following beneficial Effect:

1, the novel movable flap of the shut-off valve, by being provided with rotating block, connecting rod, threaded rod and arc fixture block, when When needs using shut-off valve, movable flap is connect first with valve rod, be rotated further by rotating block later, rotating block drives connection Bar rotation, connecting rod drive threaded rod rotation by piston and sliding block, and threaded rod is mobile by thread barrel, and drives arc fixture block It is mobile to the inside, so that arc fixture block is located at the top of disk, reaching movable flap and valve rod will not be separated from each other, then again turn Motion block is pushed in card slot, avoids rotating block from influencing valve rod rotation, while arc fixture block being avoided to move backward, leads to valve rod and activity Flap is detached from, and this configuration avoids movable flaps to relatively rotate with valve rod, or even can arrive asking of causing movable flap to fall off Topic, has ensured the normal use of shut-off valve.

2, the novel movable flap of the shut-off valve, by being provided with spring and seal closure, when needing to close shut-off valve Waiting moves down valve rod drive activity flap by valve stem nut, blocks the opening on valve seat by movable flap, herein mistake Cheng Zhong, seal closure contact valve seat at first, and when valve rod continues to move down, and valve rod drives support plate to move down, and prop up Fagging makes spring-compressed, and seal closure is in close contact with the upper surface of valve seat always under the elastic force effect of spring, finally makes activity Flap blocks the opening on valve seat, which improves the effect of shutting off of shut-off valve by seal closure and movable flap two seals Rate and leakproofness also improve the quality of shutting off of shut-off valve.

It is not directed to part in the device to be the same as those in the prior art or can be realized by using the prior art, the utility model It avoids movable flap to relatively rotate with valve rod, or even can ensure shut-off valve to the problem of causing movable flap to fall off Normal use improve shut off efficiency and the leakproofness of shut-off valve while by seal closure and movable flap two seals, Improve the quality of shutting off of shut-off valve.

Detailed description of the invention

Fig. 1 be the utility model proposes a kind of shut-off valve novel movable flap structural schematic diagram；

Fig. 2 be the utility model proposes a kind of shut-off valve novel movable flap in threaded rod structural schematic diagram；

Fig. 3 be the utility model proposes a kind of shut-off valve novel movable flap part A structural schematic diagram；

Fig. 4 be the utility model proposes a kind of shut-off valve novel movable flap part B structural schematic diagram.

In figure: 1 valve body, 2 valve seats, 3 valve decks, 4 valve rods, 5 valve stem nuts, 6 disks, 7 movable flaps, 8 thread barrels, 9 screw threads Bar, 10 arc fixture blocks, 11 pistons, 12 connecting rods, 13 auxiliary seal mechanisms, 14 support plates, 15 springs, 16 seal closures, 17 limits Bar, 18 Universal casters, 19 rotating blocks.

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.

In the description of the present invention, it should be understood that term " on ", "lower", "front", "rear", "left", "right", The orientation or positional relationship of the instructions such as "top", "bottom", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only For ease of description the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have it is specific Orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.

Referring to Fig.1-4, the novel movable flap of a kind of shut-off valve, including valve body 1, valve seat 2, valve deck 3, valve rod 4 and valve rod Nut 5, the bottom end of valve rod 4 are fixedly connected with disk 6, and the lower surface of disk 6 is embedded with multiple Universal casters 18, Universal caster 18 It can reduce the frictional force between disk 6 and movable flap 7, reduce the abrasion to movable flap 7, the bottom end movable sleeve of valve rod 4 It is connected to movable flap 7, the upper surface of movable flap 7 offers deep trouth, and the cell wall of deep trouth opens up fluted, and the cell wall of groove is opened If there are two symmetrical circular through hole, and the hole wall of circular through hole is fixedly embedded at thread barrel 8, two thread barrels 8 it is interior Wall, which is threadedly engaged, is connected with threaded rod 9, and the opposite one end of two threaded rods 9 passes through rolling bearing and is rotatably connected to arc card Block 10 offers cavity in two threaded rods 9, piston 11 is slidably connected in cavity, the side wall of piston 11 is fixedly connected with cunning Block, the inner wall of cavity offer the sliding slot to match with sliding block, and sliding block and sliding slot can be avoided connecting rod 12 and turn on threaded rod 9 Dynamic, piston 11 is fixedly connected with connecting rod 12 far from the side of valve rod 4, and connecting rod 12 is fixedly connected with far from one end of piston 11 Rotating block 19, the side wall of movable flap 7 offer the card slot matched with rotating block 19, and card slot can be avoided the influence of rotating block 19 Valve rod 4 rotates, while arc fixture block 10 being avoided to move backward, and causes valve rod 4 and movable flap 7 to be detached from, connecting rod 12 is far from living One end of plug 11 passes through the side wall of cavity and extends outwardly, and the bar wall of valve rod 4 is fixed with auxiliary seal mechanism 13, auxiliary seal Mechanism 13 includes the support plate 14 being fixedly attached with 4 bar wall of valve rod, and the lower surface of support plate 14 is fixedly connected with multiple springs 15, The bar wall movable sleeve of valve rod 4 is connected to seal closure 16, and the bottom end of multiple springs 15 is fixedly connected with the upper surface of seal closure 16, branch The upper surface of fagging 14 is opened up there are two circular hole, and the hole wall of circular hole is connected with gag lever post 17, the bottom of two gag lever posts 17 End is fixedly connected with the upper surface of seal closure 16, which is improved and cut by 7 two seals of seal closure 16 and movable flap Only shut off efficiency and the leakproofness of valve, also improves the quality of shutting off of shut-off valve, and arc fixture block 10 is located at the top of disk 6, makes Arc fixture block 10 is located at the top of disk 6, and reaching movable flap 7 and valve rod 4 will not be separated from each other.

In the utility model, when needing using shut-off valve, movable flap 7 is connect with valve rod 4 first, Zhi Houzai Rotating block 19 is rotated, rotating block 19 drives connecting rod 12 to rotate, and connecting rod 12 drives 9 turns of threaded rod by piston 11 and sliding block Dynamic, threaded rod 9 is mobile by thread barrel 8, and drives arc fixture block 10 mobile to the inside, and arc fixture block 10 is made to be located at disk 6 Top, reaching movable flap 7 and valve rod 4 will not be separated from each other, and then rotating block 19 is pushed in card slot again, avoids rotating block 19 It influences valve rod 4 to rotate, while arc fixture block 10 being avoided to move backward, cause valve rod 4 and movable flap 7 to be detached from, which avoids Movable flap 7 relatively rotates with valve rod 4, or even can ensure shut-off valve to the problem of causing movable flap 7 to fall off Normal use moves down 4 drive activity flap 7 of valve rod by valve stem nut 5 when needing to close shut-off valve, passes through Movable flap 7 blocks the opening on valve seat 2, and in the process, seal closure 16 contacts valve seat 2 at first, and continues downwards in valve rod 4 When mobile, valve rod 4 drives support plate 14 to move down, and support plate 14 compresses spring 15, and seal closure 16 is in spring 15 It is in close contact always with the upper surface of valve seat 2 under elastic force effect, movable flap 7 is finally made to block the opening on valve seat 2, the structure By 7 two seals of seal closure 16 and movable flap, shut off efficiency and the leakproofness of shut-off valve are improved, shut-off valve is also improved Quality of shutting off.

The preferable specific embodiment of the above, only the utility model, but the protection scope of the utility model is not It is confined to this, anyone skilled in the art is within the technical scope disclosed by the utility model, practical according to this Novel technical solution and its utility model design are subject to equivalent substitution or change, should all cover the protection model in the utility model Within enclosing.

Claims (6)

1. a kind of novel movable flap of shut-off valve, including valve body (1), valve seat (2), valve deck (3), valve rod (4) and valve stem nut (5), which is characterized in that the bottom end of the valve rod (4) is fixedly connected with disk (6), and the bottom end movable sleeve of the valve rod (4) is connected to The upper surface of movable flap (7), the activity flap (7) offers deep trouth, and the cell wall of deep trouth opens up fluted, the groove Cell wall open up there are two symmetrical circular through hole, and the hole wall of circular through hole is fixedly embedded at thread barrel (8), two institutes The inner wall for stating thread barrel (8), which is threadedly engaged, to be connected with threaded rod (9), and two opposite one end of the threaded rod (9) pass through Rolling bearing is rotatably connected to arc fixture block (10), and cavity is offered in two threaded rods (9), and sliding connects in the cavity It is connected to piston (11), the piston (11) is fixedly connected with connecting rod (12) far from the side of valve rod (4), the connecting rod (12) One end far from piston (11) passes through the side wall of cavity and extends outwardly, and the bar wall of the valve rod (4) is fixed with auxiliary seal Mechanism (13).

2. a kind of novel movable flap of shut-off valve according to claim 1, which is characterized in that the auxiliary seal mechanism It (13) include the support plate (14) being fixedly attached with valve rod (4) bar wall, the lower surface of the support plate (14) is fixedly connected with more The bar wall movable sleeve of a spring (15), the valve rod (4) is connected to seal closure (16), the bottom end of multiple springs (15) with it is close The upper surface of sealing cover (16) is fixedly connected, and the upper surface of the support plate (14) is opened up there are two circular hole, and the hole wall of circular hole is living Dynamic to be connected with gag lever post (17), the bottom end of two gag lever posts (17) is fixedly connected with the upper surface of seal closure (16).

3. a kind of novel movable flap of shut-off valve according to claim 1, which is characterized in that under the disk (6) Surface is embedded with multiple Universal casters (18).

4. a kind of novel movable flap of shut-off valve according to claim 1, which is characterized in that the connecting rod (12) is remote One end from piston (11) is fixedly connected with rotating block (19), and the side wall of the activity flap (7) offers and rotating block (19) The card slot matched.

5. a kind of novel movable flap of shut-off valve according to claim 1, which is characterized in that the side of the piston (11) Wall is fixedly connected with sliding block, and the inner wall of the cavity offers the sliding slot to match with sliding block.

6. a kind of novel movable flap of shut-off valve according to claim 1, which is characterized in that the arc fixture block (10) Positioned at the top of disk (6).