CN219102053U

CN219102053U - Hard seal telescopic butterfly valve

Info

Publication number: CN219102053U
Application number: CN202223356148.8U
Authority: CN
Inventors: 项忠和; 徐慧娜; 方晓群; 旷理同; 陈洪
Original assignee: Power Construction Valve Lishui Co ltd
Current assignee: Power Construction Valve Lishui Co ltd
Priority date: 2022-12-14
Filing date: 2022-12-14
Publication date: 2023-05-30
Anticipated expiration: 2032-12-14

Abstract

The utility model discloses a hard sealing telescopic butterfly valve, which belongs to the technical field of valves, wherein a valve rod is arranged on the end face of a valve body, a turntable is fixedly connected with one end of the valve rod, a left connecting disc and a fixed sleeve are respectively and fixedly connected with two sides of the valve body, an elastic tube is detachably connected with the side face of the fixed sleeve through a fastening bolt, a right connecting disc is detachably connected with the other end of the elastic tube through a positioning screw, a symmetrical sealing part is arranged on the side face of the right connecting disc, and the hard sealing telescopic butterfly valve can be pressed and sealed with the inner wall of a pipeline through the sealing parts arranged on the left connecting disc and the right connecting disc when the butterfly valve is connected with pipelines on two sides, so that the sealing stability of the butterfly valve is greatly improved, the use safety of the butterfly valve is further improved, and the arranged detachable elastic tube enables the butterfly valve to have the function of compensating the connection position when the butterfly valve is connected with the pipeline, the connection efficiency of the butterfly valve is greatly improved, and the butterfly valve is convenient to detach and maintain in later stages.

Description

Hard seal telescopic butterfly valve

Technical Field

The utility model relates to the technical field of valves, in particular to a hard sealing telescopic butterfly valve.

Background

The telescopic butterfly valve is a valve which uses a circular butterfly plate as an opening and closing piece and rotates along with a valve rod to open, close and adjust a fluid channel, such as a flange type telescopic butterfly valve with good structural stability disclosed in publication No. CN213512124U, but the butterfly valve is in soft sealing with a pipeline through a sealing ring in the use process, the sealing ring is easy to damage in the long-time use process, the sealing stability is reduced, the leakage of the joint of the butterfly valve can be caused, the size of connecting flanges on two sides of the butterfly valve is fixed, the compensation of the position can not be carried out when the butterfly valve is connected with the pipeline, and the installation efficiency of the butterfly valve can be reduced.

Disclosure of Invention

Aiming at the problems existing in the prior art, the utility model aims to provide the hard sealing telescopic butterfly valve, which can be used for extruding and hard sealing with the inner wall of a pipeline when the butterfly valve is connected with the pipelines at two sides through the sealing parts arranged on the left connecting disc and the right connecting disc, so that the sealing stability of the butterfly valve is greatly improved, the use safety of the butterfly valve is further improved, and the arranged detachable elastic tube enables the butterfly valve to have the function of compensating the connecting position when being connected with the pipeline, the connecting efficiency of the butterfly valve is greatly improved, and the disassembly and the maintenance of the butterfly valve at the later stage are convenient.

In order to solve the problems, the utility model adopts the following technical scheme.

The utility model provides a hard seal telescopic butterfly valve, includes the valve body, the terminal surface of valve body is equipped with the valve rod, the one end fixedly connected with carousel of valve rod, the both sides of valve body are fixedly connected with left connection pad and fixed cover respectively, the side of fixed cover is through fastening bolt detachable connection has the elastic tube, the other end of elastic tube can be dismantled through the set screw and is connected with right connection pad, the side of right connection pad is provided with symmetrical sealing portion, the both ends of elastic tube are fixedly connected with first adapter sleeve and second adapter sleeve respectively, a surface of first adapter sleeve is connected with the surface contact of fixed cover, a surface of second adapter sleeve is connected with a surface contact of right connection pad, the central point of first adapter sleeve and second adapter sleeve puts and all is provided with the seal groove, and this hard seal telescopic butterfly valve can be when butterfly valve and both sides pipe connection, great improvement the sealing stability of butterfly valve, and then improved the safety in utilization to the detachable elastic tube of setting has improved the butterfly valve when having the butterfly valve with the pipe connection position of compensation greatly, the butterfly valve has been dismantled in the maintenance period of butterfly valve.

Further, the shape of sealing part is the toper, the surface of sealing part is equipped with the inclined plane, the central point of sealing part puts and is equipped with the through-hole, one side intercommunication of through-hole has the mesopore, and the through-hole is the same with the internal diameter of mesopore, and the inclined plane seals with pipeline inner wall contact extrusion when being connected with the pipeline, has improved the sealed effect of hard seal.

Further, a sealing part which is the same as the right connecting disc is arranged on one side surface of the left connecting disc, connecting holes and threaded holes which are distributed in an annular equidistant mode are formed in the surface of the right connecting disc, the inner wall of each threaded hole is in threaded connection with the surface of a set screw, and the threaded holes are convenient for the disassembly and combination of the elastic tubes.

Further, the surface of the second connecting sleeve is provided with annular equally distributed positioning holes, the positioning holes are concentric and coaxial with the threaded holes, and the inner wall of each positioning hole is in contact connection with the surface of the positioning screw.

Further, the external diameter size of the first connecting sleeve is the same as that of the fixed sleeve, the surfaces of the first connecting sleeve and the fixed sleeve are provided with concentric and coaxial bolt holes, and the bolt holes are distributed in annular equal intervals.

Furthermore, the elastic tube is made of elastic corrosion-resistant rubber, and is internally compounded with spiral elastic steel bars, so that the elastic tube has an elastic telescopic function.

Compared with the prior art, the utility model has the advantages that:

(1) This scheme can carry out the hard seal with pipeline inner wall extrusion when butterfly valve and both sides pipe connection through the sealing portion that left connection pad and right connection pad set up, great improvement the sealing stability of butterfly valve, and then improved the safety in utilization of butterfly valve.

(2) The detachable elastic tube that this scheme set up for the butterfly valve has the function of compensation hookup location when being connected with the pipeline, great improvement the connection efficiency of butterfly valve, the dismantlement maintenance of the later stage butterfly valve of being convenient for moreover.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a cross-sectional view of the right land structure of the present utility model;

fig. 3 is a side view of a second adapter sleeve configuration of the present utility model.

The reference numerals in the figures illustrate:

the valve comprises a valve body 1, a valve rod 11, a rotary table 12, a fixed sleeve 13, a fixed bolt 14, a left connecting disc 2, a right connecting disc 3, a sealing part 31, an inclined surface 32, a through hole 33, a connecting hole 34, a threaded hole 35, a middle hole 36, an elastic tube 4, a first connecting sleeve 41, a second connecting sleeve 42, a sealing groove 43, a positioning hole 44 and a positioning screw 45.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1

Referring to fig. 1-3, a hard seal telescopic butterfly valve comprises a valve body 1, the valve body 1 belongs to the prior art, components such as a valve cavity and a circular disc plate are arranged in the valve body 1, the component structure and the working principle of the hard seal telescopic butterfly valve are well known to those skilled in the art, the valve body 1 is provided with a valve rod 11 on the end face, the valve rod 11 is used for driving the circular disc plate to rotate so as to open and close the butterfly valve, one end of the valve rod 11 is fixedly connected with a turntable 12, the turntable 12 can reduce the rotation difficulty of the valve rod 11, the valve rod 11 is easy to control the valve rod 11 to rotate, two sides of the valve body 1 are respectively fixedly connected with a left connecting disc 2 and a fixed sleeve 13, the side face of the fixed sleeve 13 is detachably connected with an elastic tube 4 through a fastening bolt 14, the other end of the elastic tube 4 is detachably connected with a right connecting disc 3 through a positioning screw 45, symmetrical sealing parts 31 are arranged on the side face of the right connecting disc 3, two ends of the elastic tube 4 are respectively fixedly connected with a first connecting sleeve 41 and a second connecting sleeve 42, one surface of the first connecting sleeve 41 is in contact connection with the surface of the fixed sleeve 13, one surface of the second connecting sleeve 42 is in contact with the surface of the fixed sleeve 43, one side of the first connecting sleeve 3 is in contact with the surface of the fixed sleeve 43 is in contact with the fixed sealing part of the sealing sleeve 43, and the sealing parts of the sealing sleeve 43 are arranged at the same position as the sealing sleeve 43, and the sealing parts are arranged at the sealing parts are in the sealing parts 31, and the sealing parts are in the sealing parts and the sealing parts.

The shape of sealing part 31 is the toper, the surface of sealing part 31 is equipped with inclined plane 32, the central point of sealing part 31 puts and is equipped with through-hole 33, one side intercommunication of through-hole 33 has mesopore 36, and through-hole 33 is the same with the internal diameter of mesopore 36, inclined plane 32 when being connected with the pipeline, contact extrusion with the pipeline inner wall is sealed, the sealed effect of hard seal has been improved, a side of left connection pad 2 is equipped with the sealing part 31 the same with right connection pad 3, the surface of right connection pad 3 is equipped with connecting hole 34 and screw hole 35 that annular equidistance distributes, the inner wall of screw hole 35 is connected with the surface screw thread of set screw 45, screw hole 35 is convenient for the dismantlement combination of elastic tube 4.

In this embodiment, through the sealing part 31 that left connection pad 2 and right connection pad 3 set up, can be when butterfly valve and both sides pipeline connection, extrude with the pipeline inner wall and carry out the hard seal, great improvement the sealing stability of butterfly valve, and then improved the safety in utilization of butterfly valve.

Example 2

The surface of the second connecting sleeve 42 is provided with positioning holes 44 distributed at equal intervals in an annular mode, the positioning holes 44 are concentric and coaxial with the threaded holes 35, the inner wall of each positioning hole 44 is connected with the surface of a positioning screw 45 in a contact mode, the outer diameters of the first connecting sleeve 41 and the outer diameter of the fixed sleeve 13 are the same, the surfaces of the first connecting sleeve 41 and the fixed sleeve 13 are provided with concentric and coaxial bolt holes, the bolt holes are distributed at equal intervals in an annular mode, the elastic tube 4 is made of elastic corrosion-resistant rubber, and spiral elastic steel bars are compounded in the elastic tube, so that the elastic tube has an elastic telescopic function.

In this embodiment, the detachable elastic tube 4 that sets up for the butterfly valve has the function of compensation hookup location when being connected with the pipeline, great improvement the connection efficiency of butterfly valve, the dismantlement maintenance of the later stage butterfly valve of being convenient for moreover.

This hard seal telescopic butterfly valve can be through bolt with left connection pad 2 and right connection pad 3 and both sides pipe connection fastening when using, at the bolt fastening in-process, the sealing 31 that left connection pad 2 and right connection pad 3 set up extrudees with the inner wall of two connecting tubes respectively, thereby seal the junction, sealing 31 through left connection pad 2 and right connection pad 3 setting, can carry out hard seal with the pipe inner wall extrusion when butterfly valve and both sides pipe connection, the great seal stability of butterfly valve has been improved, and then the safety in utilization of butterfly valve has been improved, and the detachable elastic tube 4 of setting, make the butterfly valve when with pipe connection, the function of compensation hookup location has, great improvement the linking efficiency of butterfly valve, moreover the dismantlement maintenance of later stage butterfly valve of being convenient for.

The above description is only of the preferred embodiments of the present utility model; the scope of the utility model is not limited in this respect. Any person skilled in the art, within the technical scope of the present disclosure, may apply to the present utility model, and the technical solution and the improvement thereof are all covered by the protection scope of the present utility model.

Claims

1. The utility model provides a hard seal flexible butterfly valve, includes valve body (1), its characterized in that: the end face of valve body (1) is equipped with valve rod (11), the one end fixedly connected with carousel (12) of valve rod (11), the both sides of valve body (1) are fixedly connected with left connection pad (2) and fixed cover (13) respectively, the side of fixed cover (13) is through fastening bolt (14) can dismantle and be connected with elastic tube (4), the other end of elastic tube (4) is through set screw (45) can dismantle and be connected with right connection pad (3), the side of right connection pad (3) is provided with symmetrical sealing portion (31), the both ends of elastic tube (4) are fixedly connected with first adapter sleeve (41) and second adapter sleeve (42) respectively, a surface of first adapter sleeve (41) is connected with the surface contact of fixed cover (13), a surface of second adapter sleeve (42) is connected with a surface contact of right connection pad (3), the central point of first adapter sleeve (41) and second adapter sleeve (42) puts and all is provided with seal groove (43).

2. The hard seal butterfly valve of claim 1, wherein: the shape of sealing part (31) is the toper, the surface of sealing part (31) is equipped with inclined plane (32), the central point of sealing part (31) puts and is equipped with through-hole (33), one side intercommunication of through-hole (33) has mesopore (36), and through-hole (33) are the same with the internal diameter of mesopore (36).

3. The hard seal butterfly valve of claim 1, wherein: the left connecting disc (2) is provided with a sealing part (31) which is the same as the right connecting disc (3), the surface of the right connecting disc (3) is provided with connecting holes (34) and threaded holes (35) which are distributed in annular equidistant mode, and the inner wall of the threaded hole (35) is in threaded connection with the surface of a set screw (45).

4. A hard seal telescoping butterfly valve according to claim 3, wherein: the surface of the second connecting sleeve (42) is provided with annular equally distributed positioning holes (44), the positioning holes (44) are concentric and coaxial with the threaded holes (35), and the inner wall of the positioning holes (44) is in contact connection with the surface of the positioning screw (45).

5. The hard seal butterfly valve of claim 1, wherein: the outer diameters of the first connecting sleeve (41) and the fixed sleeve (13) are the same, the surfaces of the first connecting sleeve (41) and the fixed sleeve (13) are provided with concentric and coaxial bolt holes, and the bolt holes are distributed in an annular equidistant mode.

6. The hard seal butterfly valve of claim 1, wherein: the elastic tube (4) is made of elastic corrosion-resistant rubber, and is internally compounded with spiral elastic steel bars.