CN218468269U - Double-valve-core butterfly valve - Google Patents

Abstract

The utility model discloses a double-valve-core butterfly valve, including the connecting pipe, still include: two valve cores arranged inside the connecting pipe; the fixed seat is fixed at the top of the connecting pipe; the mounting seat is fixed at the top of the connecting pipe and arranged side by side with the fixed seat; the two valve rods are fixedly connected with the valve core and respectively extend into the fixed seat and the mounting seat; the two transmission structures are respectively arranged inside the fixed seat and the mounting seat and are in transmission connection with the valve rod; and the turntable is arranged above the mounting seat and is in transmission connection with a transmission structure inside the mounting seat through transmission teeth. The utility model provides a pair of double-valve-core butterfly valve not only adopts double-valve-core's mode, can bear bigger internal pressure and guarantee the sealed effect of this butterfly valve, can also select whether to use two spools as required, and adaptability is better, and more convenient to use person uses.

Description

Double-valve-core butterfly valve

Technical Field

The utility model relates to a butterfly valve technical field specifically is a double-valve-core butterfly valve.

Background

A butterfly valve is a regulating valve with simple structure, can be used for the on-off control of low-pressure pipeline media, and is a valve which is opened and closed by rotating around a valve shaft, wherein a closing member (a valve clack or a butterfly plate) is a disc.

The valve can be used for controlling the flow of various types of fluid such as air, water, steam, various corrosive media, slurry, oil products, liquid metal, radioactive media and the like; and mainly plays the role of cutting off and throttling on the pipeline.

When the butterfly valve is used, only one valve core is generally arranged, so that one valve core needs to bear the sealing and opening and closing functions of the whole butterfly valve.

Therefore, the butterfly valve can lose the sealing effect after the valve core in the butterfly valve is damaged, so that the use of the butterfly valve is influenced, the butterfly valve is only sealed by one valve core, the pressure on the valve core is higher, the butterfly valve is easy to damage after being used for a long time, and inconvenience is brought to a user.

SUMMERY OF THE UTILITY MODEL

The utility model provides a not enough to prior art, the utility model provides a double-valve-core butterfly valve, the purpose is solved above-mentioned problem.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the utility model provides a double-valve-core butterfly valve, includes the connecting pipe, still includes:

two valve cores arranged inside the connecting pipe;

the fixed seat is fixed at the top of the connecting pipe;

the mounting seat is fixed at the top of the connecting pipe and arranged side by side with the fixed seat;

the two valve rods are fixedly connected with the valve core and respectively extend into the fixed seat and the mounting seat;

the two transmission structures are respectively arranged inside the fixed seat and the mounting seat and are in transmission connection with the valve rod;

and the turntable is arranged above the mounting seat and is in transmission connection with a transmission structure inside the mounting seat through transmission teeth.

Preferably, the two valve cores are arranged side by side and are respectively positioned below the fixed seat and the mounting seat.

Preferably, a fixed sleeve is fixed on the side surface of the fixed seat, and a support rod fixed with the connecting pipe is fixed at the bottom of the fixed sleeve.

Preferably, the two transmission structures comprise:

the two worm gears are respectively and rotatably arranged in the fixed seat and the mounting seat;

the two worms are respectively and rotatably arranged in the fixed seat and the mounting seat and meshed with the worm wheel;

and the two connecting shafts are fixedly connected with the worm.

Preferably, the fixing sleeve is sleeved outside the connecting shaft;

and a bearing is sleeved outside the connecting shaft.

Preferably, the gear teeth comprise:

the rotating rod is fixedly connected with the rotating disc and extends into the mounting seat;

the first bevel gear is fixedly connected with the rotating rod;

and the second bevel gear is fixedly connected with the worm and meshed with the first bevel gear.

Preferably, the transmission ratio of the first bevel gear to the second bevel gear is one to eight.

Preferably, a connecting structure is arranged between the two connecting shafts.

Preferably, the connection structure includes:

the two square rods are respectively and fixedly connected with the two connecting shafts;

the transmission sleeve is a U-shaped sleeve and is sleeved outside the two square rods;

the movable rod is rotatably arranged inside the transmission sleeve;

the handle is fixedly connected with the movable rod and is positioned at the top of the transmission sleeve;

the rotating column is fixedly connected with the movable rod, is positioned inside the transmission sleeve and is positioned between the two square rods;

and the two limiting blocks are fixedly connected with the rotating column, positioned at two sides of the rotating column and can rotate to the inside of the square rod.

Preferably, two the relative one side of square pole has all seted up the spacing groove, spacing groove and stopper looks adaptation.

Compared with the prior art, the utility model discloses possess following beneficial effect:

the utility model provides a pair of double-valve-element butterfly valve not only adopts the mode of double-valve-element, can bear bigger internal pressure and guarantee the sealed effect of this butterfly valve, can also select whether to use two case as required, and adaptability is better, and more convenient to use person uses.

Drawings

Fig. 1 is a schematic structural diagram of a double-spool butterfly valve according to the present invention;

FIG. 2 is an enlarged view of the structure of the transmission structure of the present invention;

fig. 3 is an enlarged schematic view of the structure of the connection structure of the present invention.

In the figure: the device comprises a 10 connecting pipe, a 20 valve core, a 21 valve rod, a 30 fixed seat, a 31 installation seat, a 32 fixed sleeve, a 33 supporting rod, a 34 bearing, a 40 transmission structure, a 41 worm wheel, a 42 worm, a 43 connecting shaft, a 50 connecting structure, a 51 square rod, a 52 transmission sleeve, a 53 movable rod, a 54 handle, a 55 rotating column, a 56 limiting block, a 60 rotating disc, 70 transmission teeth, a 71 rotating rod, a 72 first bevel gear and a 73 second bevel gear.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1, 2 and 3, a dual-spool butterfly valve includes a connection pipe 10, the connection pipe 10 is an existing connection pipe of a valve, and two spools 20 are disposed inside the connection pipe 10, and the connection mode and the sealing mode of the two spools 20 and the connection pipe 10 are the same as those of the existing butterfly valve, and are not innovative points of the present application because of the prior art, and thus are not described again; a fixing seat 30 fixed to the top of the connection pipe 10; a mounting seat 31 fixed to the top of the connection pipe 10 and arranged side by side with the fixing seat 30; two valve rods 21 fixedly connected with the valve core 20 and respectively extending to the insides of the fixed seat 30 and the mounting seat 31; the two transmission structures 40 are respectively arranged inside the fixed seat 30 and the mounting seat 31 and are in transmission connection with the valve rod 21; and the rotating disc 60 is arranged above the mounting seat 31 and is in transmission connection with the transmission structure 40 positioned inside the mounting seat 31 through the transmission teeth 70.

The two valve cores 20 are arranged side by side and are respectively positioned below the fixed seat 30 and the mounting seat 31.

The side of the fixed seat 30 is fixed with a fixed sleeve 32, and the bottom of the fixed sleeve 32 is fixed with a support bar 33 fixed with the connecting pipe 10.

The two transmission structures 40 comprise: two worm gears 41 rotatably mounted inside the fixed base 30 and the mounting base 31, respectively; two worms 42 rotatably mounted inside the fixed base 30 and the mounting base 31, respectively, and engaged with the worm wheel 41; and two connecting shafts 43 fixedly connected with the worm 42.

When the valve core 20 needs to be controlled to rotate, the rotary disc 60 drives the worm 42 to rotate through the transmission gear 70, so as to drive the worm wheel 41 to rotate, and then the valve rod 21 and the valve core 20 can be driven to rotate, thereby completing the sealing and dredging of the valve core 20 and the connecting pipe 10.

The fixed sleeve 32 is sleeved outside the connecting shaft 43; the bearing 34 is sleeved outside the connecting shaft 43.

The transmission gear 70 includes: a rotating rod 71 fixedly connected with the turntable 60 and extending to the inside of the mounting seat 31; a first bevel gear 72 fixedly connected to the rotating lever 71; and a second bevel gear 73 fixedly connected with the worm 42 and meshed with the first bevel gear 72.

The transmission ratio of the first bevel gear 72 to the second bevel gear 73 is one to eight.

After the rotating disc 60 is rotated, the rotating rod 71 is driven to rotate, so as to drive the first bevel gear 72 to rotate, and further to drive the second bevel gear 73 to rotate, so as to drive the worm 42 to rotate, and finally to drive the valve core 20 to rotate in the above-mentioned manner.

A connecting structure 50 is provided between the two connecting shafts 43.

After the connecting structure 50 is used for connecting the two connecting shafts 43, the rotating disc 60 rotates to drive one of the worms 42 to rotate through the transmission gear 70, and then the two connecting shafts 43, the connecting structure 50 and the other worm 42 can be sequentially driven to rotate, so that the two worm gears 41 are synchronously driven to rotate, finally, the two valve cores 20 are synchronously driven to rotate, and the synchronous opening and closing of the two valve cores 20 are completed.

The connection structure 50 includes: two square rods 51 fixedly connected to the two connecting shafts 43, respectively; a transmission sleeve 52 which is a U-shaped sleeve and is sleeved outside the two square rods 51; a movable lever 53 rotatably provided inside the transmission sleeve 52; a handle 54 fixedly connected with the movable rod 53 and positioned at the top of the transmission sleeve 52; a rotating column 55 fixedly connected with the movable rod 53, positioned inside the transmission sleeve 52 and positioned between the two square rods 51; and two limit blocks 56 which are fixedly connected with the rotating column 55, are positioned at two sides of the rotating column 55 and can rotate to the inside of the square rod 51.

The relative one side of two square poles 51 has all seted up the spacing groove, spacing groove and stopper 56 looks adaptation.

When connecting two connecting axles 43, overlap transmission sleeve 52 in the outside of two square poles 51 to make and rotate post 55 and be located between two square poles 51 for stopper 56, after sheatheeing in completely, rotate handle 54 and drive movable rod 53 in proper order, rotate post 55 and stopper 56 and rotate, make stopper 56 enter into the inside of square pole 51, can accomplish the installation, otherwise can take off.

Based on the above scheme, in the first embodiment, when only one valve core 20 needs to be used, both valve cores 20 are in the open state, and then the connecting structure 50 is removed by adopting the above method, when the rotary table 60 is rotated, only one valve core 20 can be driven to rotate.

In the second embodiment, when two valve cores 20 need to be used, the square rod 51 is manually rotated to drive the connecting shaft 43 to rotate, so as to drive the corresponding worm 42 to rotate, and finally the valve core 20 is driven to rotate, the valve core 20 below the fixing seat 30 is driven to rotate to the maximum value of the stroke of the valve core by using the method, then the rotary disc 60 is rotated to drive the valve core 20 below the mounting seat 31 to rotate to the maximum value of the stroke of the sample, and finally the connecting structure 50 is mounted by adopting the above method to complete the connection of the two connecting shafts 43, and then when the rotary disc 60 is rotated, the synchronous opening and closing of the two valve cores 20 can be completed, so that the adaptive capacity is better, and a user can select and use several valve cores more conveniently;

by using the two valve cores 20, the butterfly valve can adapt to larger internal pressure, and the sealing effect of the butterfly valve is ensured, so that the butterfly valve is more convenient to use for a long time.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a … …" does not exclude the presence of another identical element in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (10)

1. The utility model provides a double-valve-core butterfly valve, includes the connecting pipe, its characterized in that still includes:

two valve cores arranged inside the connecting pipe;

the fixed seat is fixed at the top of the connecting pipe;

the mounting seat is fixed at the top of the connecting pipe and arranged side by side with the fixed seat;

the two valve rods are fixedly connected with the valve core and respectively extend into the fixed seat and the mounting seat;

the two transmission structures are respectively arranged in the fixed seat and the mounting seat and are in transmission connection with the valve rod;

and the turntable is arranged above the mounting seat and is in transmission connection with a transmission structure inside the mounting seat through transmission teeth.

2. A dual spool butterfly valve according to claim 1, wherein the two spools are arranged side-by-side and below the mounting seat and the seat, respectively.

3. The butterfly valve with double spools according to claim 1, wherein a fixing sleeve is fixed on the side surface of the fixing seat, and a supporting rod fixed with the connecting pipe is fixed on the bottom of the fixing sleeve.

4. A dual spool butterfly valve in accordance with claim 3 wherein two of said drive structures comprise:

the two worm gears are respectively and rotatably arranged in the fixed seat and the mounting seat;

the two worms are respectively and rotatably arranged in the fixed seat and the mounting seat and meshed with the worm wheel;

and the two connecting shafts are fixedly connected with the worm.

5. The butterfly valve with double spools according to claim 4, wherein the fixing sleeve is sleeved outside the connecting shaft;

and a bearing is sleeved outside the connecting shaft.

6. The dual spool butterfly valve of claim 4, wherein the gear teeth comprise:

the rotating rod is fixedly connected with the rotating disc and extends into the mounting seat;

the first bevel gear is fixedly connected with the rotating rod;

and the second bevel gear is fixedly connected with the worm and meshed with the first bevel gear.

7. The dual spool butterfly valve of claim 6, wherein the ratio of the first bevel gear to the second bevel gear is one to eight.

8. The butterfly valve with double valve core according to claim 4, wherein a connecting structure is arranged between the two connecting shafts.

9. The dual spool butterfly valve of claim 8, wherein the connection structure comprises:

the two square rods are respectively and fixedly connected with the two connecting shafts;

the transmission sleeve is a U-shaped sleeve and is sleeved outside the two square rods;

the movable rod is rotatably arranged inside the transmission sleeve;

the handle is fixedly connected with the movable rod and is positioned at the top of the transmission sleeve;

the rotating column is fixedly connected with the movable rod, is positioned inside the transmission sleeve and is positioned between the two square rods;

and the two limiting blocks are fixedly connected with the rotating column, positioned at two sides of the rotating column and can rotate to the inside of the square rod.

10. The butterfly valve with the double valve cores of claim 9, wherein one side of each of the two square rods opposite to each other is provided with a limiting groove, and the limiting grooves are matched with the limiting blocks.

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