CN211525567U

CN211525567U - Butt clamp type butterfly valve with good sealing effect

Info

Publication number: CN211525567U
Application number: CN202020002463.2U
Authority: CN
Inventors: 陈�光
Original assignee: Tianjin Bovos Valve Co ltd
Current assignee: Tianjin Bovos Valve Co ltd
Priority date: 2020-01-02
Filing date: 2020-01-02
Publication date: 2020-09-18
Anticipated expiration: 2030-01-02

Abstract

The utility model discloses a sealed effectual wafer formula butterfly valve, including the valve body, fixed mounting has the valve gap on the roof of valve body, and the valve plate is installed to the valve body internal rotation, and fixed mounting has the valve rod on the roof of valve plate, and the top of valve rod extends to the upside of valve gap, and the valve rod rotates and installs on the valve gap, rotates on the lateral wall of valve gap one side and installs the pivot, and the one end fixed mounting of pivot has the carousel, is equipped with transmission between pivot and the valve rod, and the top fixed mounting of valve gap has the roof, and the top and the roof of valve rod contact each other, and the top movable mounting of valve rod. The utility model discloses in use the valve plate to cut off after the fluid, rotate the push rod and remove the push rod to the top of spacing groove, the spring removes to the spacing inslot owing to resume the top that self elasticity can promote the stopper to can be with stopper, valve rod and valve plate fixed connection on the roof, thereby can prevent that the valve rod from taking place the gyration, improved the leakproofness of butterfly valve.

Description

Butt clamp type butterfly valve with good sealing effect

Technical Field

The utility model relates to a butt clamp formula butterfly valve technical field especially relates to a sealed effectual butt clamp formula butterfly valve.

Background

The butterfly plate of the opposite-clamping butterfly valve is installed in the diameter direction of a pipeline, in a cylindrical channel of a butterfly valve body, the disc-shaped butterfly plate rotates around an axis, the rotation angle is 0-90 degrees, the flow regulation effect can be achieved, when the butterfly plate rotates to 90 degrees, the valve reaches the maximum opening degree, the opposite-clamping butterfly valve is simple in structure, small in size, light in weight and only composed of a few parts, and the opposite-clamping butterfly valve can be opened and closed quickly only by rotating 90 degrees, and the operation is simple, and meanwhile the valve has a good fluid control characteristic.

However, the sealing effect of the existing butterfly valve is poor due to the rotation of the valve rod when the existing butterfly valve cuts off the fluid, so that the improvement is needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem of poor sealing effect of the butterfly valve in the prior art and providing a sealed effectual wafer butterfly valve.

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

the utility model provides a sealed effectual wafer formula butterfly valve, includes the valve body, fixed mounting has the valve gap on the roof of valve body, the valve plate is installed to the valve body internal rotation, fixed mounting has the valve rod on the roof of valve plate, the top of valve rod extends to the upside of valve gap, and the valve rod rotates and installs on the valve gap, rotate on the lateral wall of valve gap one side and install the pivot, the one end fixed mounting of pivot has the carousel, be equipped with transmission between pivot and the valve rod, the top fixed mounting of valve gap has the roof, and the top and the roof of valve rod contact each other, the top movable mounting of valve rod has the stopper, set up the spacing groove of mutually supporting with the stopper on the diapire of roof, threaded connection has the push rod of mutually supporting with the stopper on the roof of roof, and the bottom of push rod extends to.

Preferably, the outer side walls of the valve rod and the rotating shaft are fixedly provided with annular limiting plates, and the valve cover is provided with annular limiting grooves matched with the annular limiting plates.

Preferably, the transmission device comprises a first bevel gear and a second bevel gear which are fixedly arranged on the rotating shaft and the valve rod respectively, and the first bevel gear and the second bevel gear are in gear engagement with each other.

Preferably, set up the mounting groove of mutually supporting with the stopper on the roof of valve rod, the activity is inserted on the inboard diapire of mounting groove and is equipped with a plurality of movable rods, and the equal fixed mounting in top of movable rod is on the diapire of stopper, every all around being equipped with the spring on the lateral wall of movable rod, and the both ends difference fixed mounting of spring is on the diapire of stopper and the inside wall of mounting groove.

Preferably, the limiting block is a rectangular block, and the limiting block and the limiting groove are in clearance fit with each other.

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

1. after the valve plate is used for cutting off fluid, the push rod is rotated and moved to the top end of the limiting groove, and the spring can push the top end of the limiting block to move into the limiting groove due to the fact that the spring recovers the elasticity of the spring, so that the limiting block, the valve rod and the valve plate can be fixedly connected to the top plate, the valve rod can be prevented from rotating, and the sealing performance of the butterfly valve is improved;

2. the push rod is rotated and the limiting block is pushed to the outer side of the limiting groove, the valve rod and the valve plate can be conveniently driven to rotate by rotating the rotating shaft, and the valve rod and the valve plate rotating device are simple in structure, convenient to operate and good in practical effect.

Drawings

Fig. 1 is a schematic front structural view of a wafer butterfly valve with good sealing effect according to the present invention;

fig. 2 is an enlarged view of a portion a of the structure of the wafer butterfly valve with good sealing effect according to the present invention.

In the figure: 1 valve body, 2 valve covers, 3 valve plates, 4 valve rods, 5 rotating shafts, 6 rotating discs, 7 annular limiting plates, 8 first bevel gears, 9 second bevel gears, 10 top plates, 11 limiting blocks, 12 mounting grooves, 13 movable rods, 14 springs, 15 limiting grooves and 16 push rods.

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.

Referring to fig. 1-2, a sealed effectual wafer-type butterfly valve, including valve body 1, fixed mounting has valve gap 2 on the roof of valve body 1, valve plate 3 is installed to the internal rotation of valve body 1, fixed mounting has valve rod 4 on the roof of valve plate 3, the top of valve rod 4 extends to the upside of valve gap 2, and valve rod 4 rotates and installs on valve gap 2, rotate on the lateral wall of valve gap 2 one side and install pivot 5, equal fixed mounting has annular limiting plate 7 on the lateral wall of valve rod 4 and pivot 5, set up the annular spacing groove of mutually supporting with annular limiting plate 7 on the valve gap 2, make

valve rod

4 and 5 relative valve gap 2 of pivot all can only take place to rotate.

One end fixed mounting of pivot 5 has carousel 6, is equipped with transmission between pivot 5 and the valve rod 4, and transmission includes first bevel gear 8 and the second bevel gear 9 of fixed mounting respectively on pivot 5 and valve rod 4, and first bevel gear 8 and the mutual gear engagement of second bevel gear 9, rotates carousel 6 and can drive pivot 5, first bevel gear 8, second bevel gear 9 and valve rod 4 and rotate.

Top fixed mounting of valve gap 2 has roof 10, and the top of valve rod 4 and roof 10 contact each other, the top movable mounting of valve rod 4 has stopper 11, set up on the roof of valve rod 4 with stopper 11 mounting groove 12 of mutually supporting, the activity is inserted on the diapire of mounting groove 12 inboard and is equipped with a plurality of movable rods 13, and the equal fixed mounting in top of movable rod 13 is on the diapire of stopper 11, all around being equipped with spring 14 on every movable rod 13's the lateral wall, and spring 14's both ends difference fixed mounting is on the diapire of stopper 11 and the inside wall of mounting groove 12, stopper 11 can freely reciprocate.

The limiting groove 15 matched with the limiting block 11 is formed in the bottom wall of the top plate 10, the limiting block 11 is a rectangular block, and the limiting block 11 and the limiting groove 15 are in clearance fit with each other.

Threaded connection has the push rod 16 of mutually supporting with stopper 11 on the roof of roof 10, and the bottom of push rod 16 extends to limiting groove 15 in, use valve plate 3 to cut off behind the fluid, rotate push rod 16 and remove push rod 16 to limiting groove 15's top, spring 14 is because recovering self elasticity and can promote stopper 11's top and remove to limiting groove 15 in, thereby can be with stopper 11,

valve rod

4 and 3 fixed connection of valve plate on roof 10, thereby can prevent that valve rod 4 from taking place to revolve, the leakproofness of butterfly valve has been improved.

The utility model discloses in, rotate push rod 16 and promote stopper 11 to the outside of spacing groove 15, rotate first bevel gear 8 of drive that carousel 6 and pivot 5 just can be convenient, second bevel gear 9, valve rod 4 and valve plate 3 rotate, use valve plate 3 to cut off after the fluid, rotate push rod 16 and remove push rod 16 to the top of spacing groove 15, spring 14 is because resume self elasticity can promote the top of stopper 11 and remove to the spacing groove 15 in, thereby can be with stopper 11,

valve rod

4 and 3 fixed connection of valve plate on roof 10, thereby can prevent that valve rod 4 from taking place to revolve.

Further, unless otherwise specifically stated or limited, the above-described fixed connection is to be understood in a broad sense, and may be, for example, welded, glued, or integrally formed as is conventional in the art.

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.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a sealed effectual wafer formula butterfly valve, includes valve body (1), its characterized in that: the valve comprises a valve body (1), a valve cover (2) is fixedly mounted on the top wall of the valve body (1), a valve plate (3) is rotatably mounted in the valve body (1), a valve rod (4) is fixedly mounted on the top wall of the valve plate (3), the top end of the valve rod (4) extends to the upper side of the valve cover (2), the valve rod (4) is rotatably mounted on the valve cover (2), a rotating shaft (5) is rotatably mounted on the outer side wall of one side of the valve cover (2), a rotating disc (6) is fixedly mounted at one end of the rotating shaft (5), a transmission device is arranged between the rotating shaft (5) and the valve rod (4), a top end of the valve cover (2) is fixedly mounted with a top plate (10), the top end of the valve rod (4) is in mutual contact with the top plate (10), a limiting block (11) is movably mounted at the top end of the valve rod (4, the top wall of the top plate (10) is connected with a push rod (16) which is matched with the limiting block (11) in a threaded mode, and the bottom end of the push rod (16) extends into the limiting groove (15).

2. The wafer type butterfly valve with good sealing effect according to claim 1, wherein: equal fixed mounting has annular limiting plate (7) on the lateral wall of valve rod (4) and pivot (5), set up the annular spacing groove of mutually supporting with annular limiting plate (7) on valve gap (2).

3. The wafer type butterfly valve with good sealing effect according to claim 1, wherein: the transmission device comprises a first bevel gear (8) and a second bevel gear (9) which are fixedly installed on the rotating shaft (5) and the valve rod (4) respectively, and the first bevel gear (8) and the second bevel gear (9) are meshed with each other in a gear mode.

4. The wafer type butterfly valve with good sealing effect according to claim 1, wherein: offer on the roof of valve rod (4) mounting groove (12) of mutually supporting with stopper (11), the activity is inserted on the diapire of mounting groove (12) inboard and is equipped with a plurality of movable rods (13), and the equal fixed mounting in top of movable rod (13) is on the diapire of stopper (11), every all around being equipped with spring (14) on the lateral wall of movable rod (13), and the both ends difference fixed mounting of spring (14) is on the diapire of stopper (11) and the inside wall of mounting groove (12).

5. The wafer type butterfly valve with good sealing effect according to claim 1, wherein: the limiting block (11) is a rectangular block, and the limiting block (11) is in clearance fit with the limiting groove (15) mutually.