CN202441899U

CN202441899U - Novel butterfly valve

Info

Publication number: CN202441899U
Application number: CN2012200504828U
Authority: CN
Inventors: 王延君
Original assignee: SHANDONG YIBAITONG MACHINERY CO Ltd
Current assignee: SHANDONG YIBAITONG MACHINERY CO Ltd
Priority date: 2012-02-16
Filing date: 2012-02-16
Publication date: 2012-09-19
Anticipated expiration: 2022-02-16

Abstract

The utility model discloses a novel butterfly valve which comprises a valve body and a valve seat, wherein the valve body is provided with a rounded opening, the valve seat is fixed on the inner wall of the rounded opening, the valve body is provided with a valve rod which passes through the center of the rounded opening and is perpendicular to the central axis of the rounded opening, and a gate disc matched with the valve seat is fixed on the valve rod; and the novel butterfly valve also comprises a pair of a worm gear and a worm, wherein the worm gear and the worm are meshed, the worm gear is fixed at an end part of the valve rod, and a hand wheel is fixed at an end part of the worm. The novel butterfly valve is simple in structure; the transmission of the worm gear and the worm effectively reduces the operation torque, and thereby facilitating the application of the valve by workers; and the novel butterfly valve is timely in response, and no fault occurs after the novel butterfly valve is used for a long time, thereby ensuring the normal safe application of the valve.

Description

Novel butterfly valve

Technical field

The utility model relates to valve technology field, relates in particular to a kind of novel butterfly valve of rapid operation.

Background technique

Butterfly valve is Flap valve again, is a kind of modulating valve simple in structure, is applicable in the engineering systems such as producer, coal gas, rock gas, LPG, town gas, cold and hot air, chemical industry smelting and generation environment-friendly to carry on the pipeline of various corrosivity, non-corrosive fluids medium; Be used to regulate and block flowing of medium; Also can be used for simultaneously the switch control of low pressure pipeline medium, butterfly valve of the prior art has manual, electronic, pneumatic and multiple control modes such as surge, but general manual control mode operational torque is big; Be inconvenient to use; And electronic, pneumatic or mode input cost such as surge is higher, and the reaction time is longer, regulates untimely; After long-time the use, also break down easily, influence is safe handling normally.

The model utility content

The utility model technical problem to be solved is: a kind of novel butterfly valve is provided, and operational torque was little when this butterfly valve used, the convenient use.

For solving the problems of the technologies described above; The technological scheme of the utility model is: novel butterfly valve, comprise the valve body that has circular open and be fixed in the valve seat on the said circular open inwall, said valve body be provided with pass the circular open center and with the perpendicular valve rod of circular open central axis; Be fixed with on the said valve rod and the suitable flashboard of said valve seat; Also comprise the worm gear and the worm screw of pair of meshing, said worm gear is fixed in the end of said valve rod, and the end of said worm screw is fixed with handwheel.

As a preferred implementation, be provided with seal cartridge between said valve rod and the valve seat.

After having adopted technique scheme, the beneficial effect of the utility model is: owing to fixed worm gear in the end of valve rod, worm gear cooperates with worm screw; Be fixed with handwheel on the worm screw again; Can pass through the handwheel rotary worm in use, and then make worm gear drives valve rod, valve rod drive flashboard and rotate, realize the adjusting and the break-make of butterfly valve; The cooperation of worm gear and worm screw can reduce the operational torque of butterfly valve effectively; Reduce staff's labor intensity, and after long-time the use, also can not break down, guarantee safe handling normally.

Owing between valve rod and valve seat, be provided with seal cartridge, can make butterfly valve avoid occurring unnecessary leak case in use.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is described further.

Accompanying drawing is the utility model embodiment's a structural representation;

Among the figure: 1. valve body; 11. circular open; 2. valve seat; 3. flashboard; 4. valve rod; 5. bearing pin; 6. seal cartridge; 7. worm gear; 8. worm screw; 9. handwheel.

Embodiment

Shown in accompanying drawing, be a kind of structural representation of novel butterfly valve, this butterfly valve comprises valve body 1; Have circular open 11 on the said valve body 1, on the inwall of said circular open 11, be fixed with the valve seat suitable 2 with it, also be provided with on the said valve body 1 center of passing said circular open 11 and with the perpendicular valve rod 4 of its central axis; Simultaneously on said valve rod 4, be fixed with flashboard 3 through bearing pin 5; Said flashboard 3 can be suitable with said valve seat 2, between said valve rod 4 and valve body 1, also is provided with the seal cartridge 6 that is used to seal, like this; When said valve rod 4 rotates; Said flashboard 3 can be along with it rotates, and when plane, said flashboard 3 place turned to said valve seat 2 place plane parallel, this butterfly valve promptly was in closed condition; When plane, said flashboard 3 place turns to when vertical with plane, said valve seat 2 place, this butterfly valve is in maximum opening state.

This novel butterfly valve also comprises the worm gear 7 that is fixed in said valve rod 4 ends; Said worm gear 7 is meshed with worm screw 8; End said worm screw 8 also is fixed with handwheel 9 through bearing pin 5; The staff can rotate said worm screw 8 through said handwheel 9, through said worm gear 7 power is reached on the said valve rod 4, realizes the adjusting and the break-make of butterfly valve.

This novel butterfly valve structure is simple, utilizes worm gear and worm drive to reduce its operational torque effectively, makes things convenient for the staff to use, and its reaction in time, after long-time the use, also can not break down, and guarantees safe handling normally.

The utility model is not limited to above-mentioned embodiment, and all are based on the technical conceive of the utility model, and the structural improvement of having done all falls among the protection domain of the utility model.

Claims

1. novel butterfly valve; Comprise the valve body that has circular open and be fixed in the valve seat on the said circular open inwall; Said valve body be provided with pass the circular open center and with the perpendicular valve rod of circular open central axis, be fixed with on the said valve rod and the suitable flashboard of said valve seat, it is characterized in that: the worm gear and the worm screw that also comprise pair of meshing; Said worm gear is fixed in the end of said valve rod, and the end of said worm screw is fixed with handwheel.

2. novel butterfly valve as claimed in claim 1 is characterized in that: be provided with seal cartridge between said valve rod and the valve seat.

3. novel butterfly valve as claimed in claim 2 is characterized in that: all be connected through bearing pin between said valve rod and the flashboard and between worm screw and the handwheel.