CN212509577U

CN212509577U - Sealed butterfly valve

Info

Publication number: CN212509577U
Application number: CN202020575088.0U
Authority: CN
Inventors: 董成永; 阎大勇; 叶余群
Original assignee: Zhongquan Group Valve Co ltd
Current assignee: Zhongquan Group Valve Co ltd
Priority date: 2020-04-17
Filing date: 2020-04-17
Publication date: 2021-02-09
Anticipated expiration: 2030-04-17

Abstract

The utility model discloses a sealed butterfly valve. The technical key points are as follows: the valve body is equipped with the valve rod in the valve body, the butterfly plate, sealed rubber ring, inside valve rod one end was located the valve body, the valve body was worn out to the other end, the one end that the valve body was worn out to the valve rod was equipped with the hand wheel, the butterfly plate is connected with the valve rod, sealed rubber ring snare connection was at the side of butterfly plate, be equipped with the clamp plate on the butterfly plate, the border of clamp plate is equipped with and holds the ladder, one side and the butterfly plate swivelling joint that the clamp plate set up and hold the ladder, make and hold the ladder and become annular closed holding tank, sealed rubber ring dress is in the holding tank, is equipped with positioning mechanism on the clamp plate, positioning mechanism is used for fixed sealed rubber.

Description

Sealed butterfly valve

Technical Field

The utility model relates to a valve field, more specifically the utility model relates to a sealed butterfly valve that says so.

Background

The butterfly valve is a regulating valve with a relatively simple structure, is generally mainly used for cutting off or throttling various types of fluids such as water, various corrosive media, slurry, oil, liquid metal and the like in a pipeline, and is also particularly important in sealing performance because the butterfly valve is mainly used for various types of fluids. The sealing rubber ring on the butterfly plate on the existing butterfly valve is inconsistent with the valve body to achieve the purpose of cutting off, the common butterfly valve can only rotate 90 degrees, the butterfly valve is cut off when rotating to the bottom in one direction, the butterfly valve is completely opened when rotating to the bottom in another direction, friction can be caused between the sealing rubber ring and the valve body when the butterfly valve is sealed at each time, the directions of abrasion of the left and right two semicircles of the sealing rubber ring are opposite, the sealing rubber ring of the other part is not abraded, but the butterfly valve cannot be sealed, and the service life of the butterfly valve is short.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a long service life's sealed butterfly valve.

In order to achieve the above purpose, the utility model provides a following technical scheme: sealed butterfly valve, including: the valve body, be equipped with valve rod, butterfly plate, sealed rubber ring in the valve body, valve rod one end is located inside the valve body, and the valve body is worn out to the other end, the one end that the valve rod was worn out the valve body is equipped with the hand wheel, the butterfly plate is connected with the valve rod, sealed rubber ring snare joint is at the side of butterfly plate, be equipped with the clamp plate on the butterfly plate, the border of clamp plate is equipped with and holds the ladder, the clamp plate sets up one side and the butterfly plate rotatable coupling that holds the ladder, makes and holds the ladder and become annular closed holding tank, sealed rubber ring dress is in the holding tank, be equipped with positioning mechanism on the clamp plate.

As a further improvement, the butterfly plate is equipped with the swivelling chute by the centre of a circle position of clamp plate one side, threaded connection has the rotary rod on the swivelling chute, the centre of a circle position of clamp plate is equipped with rotatory hole, one side that the rotary rod stretches out the swivelling chute is smooth, the butterfly plate is by being equipped with centrosymmetric's fixed slot on clamp plate one side, be equipped with the fixed orifices on the clamp plate, the fixed slot corresponds with the position and the size of fixed orifices.

As a further improvement, the positioning mechanism comprises a plurality of positioning rods distributed along the circumference, and a plurality of positioning rods are vertically fixed on the pressing plate, positioning holes are arranged on the sealing gasket, and the positions and the sizes of the positioning holes correspond to the positioning rods one to one.

As the utility model discloses a further improvement, it is a plurality of the equal detachable of one end that the clamp plate was kept away from to the locating lever is equipped with the spacer, and is a plurality of one side that the locating hole is close to the butterfly plate all is equipped with the constant head tank, the shape size of spacer is unanimous with the shape size of constant head tank.

As a further improvement of the utility model, be equipped with on the clamp plate and supply the finger to stretch into the drive groove, drive groove eccentric settings.

As a further improvement, the sealing rubber ring is equipped with first perpendicular scale towards the top of clamp plate one side, the sealing rubber ring is equipped with the perpendicular scale of second towards the bottom of clamp plate one side, the valve body is equipped with the location scale directly over perpendicular scale.

The beneficial effects of the utility model, when using sealed butterfly valve, rotatory hand wheel, then the hand wheel drives the valve rod rotation, and the valve rod rotation drives the butterfly plate rotation, and when the butterfly plate rotation made sealed rubber ring a week and contradicted completely with the valve body inner wall, the butterfly valve was cut off, and when hand wheel antiport was on the earth, the butterfly valve was opened completely. When the sealing butterfly valve is cut off at every time, the position of the valve rod is used as a dividing line, the sealing rubber ring is divided into two parts which are bilaterally symmetrical, one part of the sealing rubber ring is worn towards the inlet side of the valve body, the other side of the sealing rubber ring is not worn, the other part of the sealing rubber ring is worn towards the outlet side of the valve body, the other side of the sealing rubber ring is not worn, the worn positions of the two parts are the same, after the sealing rubber ring is worn to a certain degree, the pressing plate is rotated by 180 degrees, the pressing plate drives the positioning mechanism to rotate, the sealing rubber ring is further driven to rotate by 180 degrees, the left part and the right part of the rotating sealing rubber ring are exchanged, the worn sides of the two parts are exchanged, the rotating hand wheel enables the sealing butterfly valve to be cut off, the left part and the right part of the sealing rubber ring are worn.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic structural view of a butterfly plate, a sealing rubber ring and a pressure plate;

FIG. 3 is a schematic view of the platen;

FIG. 4 is a schematic structural view of a sealing rubber ring;

FIG. 5 is a schematic structural view of the side of the pressure plate opposite to the butterfly plate.

Description of the labeling: 1. a valve body; 11. a valve stem; 12. a butterfly plate; 121. a rotating tank; 122. rotating the rod; 123. fixing grooves; 13. sealing the rubber ring; 131. positioning holes; 132. positioning a groove; 14. a hand wheel; 2. pressing a plate; 21. an accommodating step; 22. accommodating grooves; 23. rotating the hole; 24. a fixing hole; 25. a drive slot; 3. a positioning mechanism; 31. Positioning a rod; 32. positioning plates; 41. a first vertical scale; 42. a second vertical scale; 43. and positioning scales.

Detailed Description

The present invention will be described in further detail with reference to embodiments shown in the drawings.

Referring to fig. 1 to 5, the sealing butterfly valve of the present embodiment includes: valve body 1, be equipped with valve rod 11, butterfly plate 12, sealed rubber ring 13 in the

valve body

1, 11 one ends of valve rod are located inside valve body 1, and valve body 1 is worn out to the other end, the one end that valve body 1 was worn out to valve rod 11 is equipped with hand wheel 14, butterfly plate 12 is connected with valve rod 11, sealed rubber ring 13 overlaps the side of connecting at butterfly plate 12, be equipped with clamp plate 2 on the butterfly plate 12, the border of clamp plate 2 is equipped with and holds ladder 21, clamp plate 2 sets up one side and butterfly plate 12 rotatable coupling that holds ladder 21, makes and holds ladder 21 and become annular closed holding tank 22, sealed rubber ring 13 dress is in holding tank 22, be equipped with positioning mechanism 3 on clamp plate 2, positioning mechanism 3 is used for fixed seal rubber ring 13.

Through above-mentioned technical scheme, when using sealed butterfly valve, rotatory hand wheel 14, then hand wheel 14 drives valve rod 11 rotatory, and the rotatory butterfly plate 12 that drives of valve rod 11 is rotatory, and when the butterfly plate 12 is rotatory to make 13 a week of sealing rubber ring and 1 inner wall of valve body contradict completely, the butterfly valve was cut off, and when 14 antiport of hand wheel arrived at the end, the butterfly valve was opened completely. When cutting off each time, the position of the valve rod 11 is taken as a parting line, the sealing rubber ring 13 is divided into two parts which are symmetrical left and right, one part of the wear-resistant valve body is worn towards the inlet side of the valve body 1, the other side of the wear-resistant valve body is not worn, the other part of the wear-resistant valve body is worn towards the outlet side of the valve body 1, the other side of the wear-resistant valve body is not worn, the wear degrees of the worn positions of the two parts are the same, when the abrasion reaches a certain degree, the pressure plate 2 is rotated by 180 degrees, at the moment, the pressure plate 2 drives the positioning mechanism 3 to rotate, thereby driving the sealing rubber ring 13 to rotate 180 degrees, exchanging the left part and the right part of the rotating sealing rubber ring 13, and the wearing sides of the two parts are exchanged, when the hand wheel 14 is rotated to stop the sealing butterfly valve, the left part and the right part of the sealing rubber ring 13 are worn at the side which is not worn, so that the utilization rate and the service time of the sealing rubber ring 13 are improved, the waste is reduced, the service life of the sealing rubber ring 13 is prolonged, and further the service life of the sealing butterfly valve is prolonged. The problem of current butterfly valve use back sealing rubber ring 13 about two semicircle wearing and tearing opposite direction, lead to the sealing rubber ring 13 of another part not to wear and tear, but the butterfly valve has been unable sealed, the life of butterfly valve is short is avoided. Firstly, the sealing rubber ring 13 is sleeved on the accommodating step 21, then the separated pressing plate 2 is connected with the butterfly plate 12, so that the sealing rubber ring 13 is positioned in the accommodating groove 22, the installation is convenient, the stretching of the sealing rubber ring 13 is avoided in the installation process, and the stopping effect when stopping is ensured.

As an improved specific embodiment, a rotation groove 121 is arranged at a circle center position of one side of the butterfly plate 12 close to the pressing plate 2, a rotation rod 122 is connected to the rotation groove 121 through a thread, a rotation hole 23 is arranged at the circle center position of the pressing plate 2, one side of the rotation rod 122 extending out of the rotation groove 121 is smooth, fixing grooves 123 with central symmetry are arranged at one side of the butterfly plate 12 close to the pressing plate 2, a fixing hole 24 is arranged on the pressing plate 2, and the positions and sizes of the fixing grooves 123 and the fixing holes 24 correspond to each other.

Through the technical scheme, through rotary rod 122 with the rotatable connection of clamp plate 2 on butterfly plate 12, moreover, the steam generator is simple in structure, high durability and convenient installation, with clamp plate 2 with the rotatable back of linking together of butterfly plate 12, with screw fixation locating hole 131 and constant head tank 132, butterfly plate 12 is fixed with clamp plate 2 during normal use, take off the screw when needing to rotate, and is simple and convenient, fixed slot 123, the 24 central symmetry of fixed orifices, rotatory switching is behind the sealed rubber ring 13 of both sides, fixed slot 123 can be fixed to the enterprising with another fixed orifices 24.

As an improved specific embodiment, the positioning mechanism 3 includes a plurality of positioning rods 31 distributed along the circumference, the plurality of positioning rods 31 are vertically fixed on the pressing plate 2, the sealing rubber ring 13 is provided with positioning holes 131, and the positions and sizes of the positioning holes 131 correspond to the positioning rods 31 one by one.

Through above-mentioned technical scheme, through locating lever 31 and the fixed sealing rubber ring 13 of locating hole 131, simple structure, it is firm stable after fixed to only need during the installation to aim at locating lever 31 with locating hole 131 and can easily install simple to operate.

As a modified specific embodiment, the ends of the positioning rods 31 far away from the pressure plate 2 are respectively detachably provided with a positioning sheet 32, one side of the positioning holes 131 near the butterfly plate 12 is respectively provided with a positioning groove 132, and the shape and size of the positioning sheet 32 are consistent with the shape and size of the positioning groove 132.

Through the technical scheme, the positioning pieces 32 are in threaded connection with the positioning rods 31, the positioning pieces 32 are arranged on each positioning rod 31 after the sealing rubber ring 13 is arranged on the pressing plate 2, the positioning pieces 32 are embedded into the positioning grooves 132 after the positioning pieces 32 are arranged, the pressing plate 2 is connected with the butterfly plate 12, and the sealing rubber ring 13 is tightly attached to the butterfly plate 12. When the rotation is needed to enable the two sides of the sealing rubber ring 13 to be interchanged, the screws in the fixing groove 123 and the fixing hole 24 are firstly taken down, then the pressing plate 2 is pulled to be away from the butterfly plate 12, and at the moment, the positioning piece 32 drives the sealing rubber ring 13 to move along with the pressing plate 2 and then rotate. The locating piece 32 can be stable drive sealing rubber ring 13 and keep away from butterfly plate 12 along with clamp plate 2, makes later rotatory in-process sealing rubber ring 13 separately with butterfly plate 12, avoids sealing rubber ring 13 and butterfly plate 12 friction, and is laborsaving during the rotation to sealing rubber ring 13 wearing and tearing when avoiding rotatory, can keep good sealed effect after guaranteeing to rotate.

As a modified specific embodiment, the pressing plate 2 is provided with a driving groove 25 for fingers to extend into, and the driving groove 25 is eccentrically arranged.

Through the technical scheme, when the pressing plate 2 needs to be selected, fingers stretch into the driving groove 25, and the pressing plate 2 is rotated conveniently and labor-saving.

As a modified specific embodiment, the uppermost end of the side of the sealing rubber ring 13 facing the pressure plate 2 is provided with a first vertical scale 41, the lowermost end of the side of the sealing rubber ring 13 facing the pressure plate 2 is provided with a second vertical scale 42, and the valve body 1 is provided with a positioning scale 43 directly above the vertical scale.

Through the technical scheme, when the sealing rubber rings 13 on the left side and the right side are not switched, the first vertical scale 41 is aligned with the positioning scale 43, the second vertical scale 42 is aligned with the positioning scale 43 after rotation, the rotation is 180 degrees at the moment, and the rotation precision is high.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. Sealed butterfly valve, including: valve body (1), be equipped with valve rod (11), butterfly plate (12), sealing rubber ring (13) in valve body (1), inside valve rod (11) one end was located valve body (1), valve body (1) was worn out to the other end, the one end that valve body (1) was worn out in valve rod (11) is equipped with hand wheel (14), butterfly plate (12) are connected with valve rod (11), sealing rubber ring (13) cover is connected at the side of butterfly plate (12), its characterized in that: be equipped with on butterfly plate (12) clamp plate (2), the border of clamp plate (2) is equipped with and holds ladder (21), one side and butterfly plate (12) rotatable coupling that clamp plate (2) set up and hold ladder (21) make and hold ladder (21) and become annular closed holding tank (22), sealed rubber ring (13) dress is in holding tank (22), be equipped with positioning mechanism (3) on clamp plate (2), positioning mechanism (3) are used for fixed seal rubber ring (13).

2. The sealed butterfly valve of claim 1, wherein: butterfly plate (12) are equipped with rotating groove (121) by the centre of a circle position of clamp plate (2) one side, threaded connection has rotary rod (122) on rotating groove (121), the centre of a circle position of clamp plate (2) is equipped with rotatory hole (23), one side that rotary rod (122) stretched out rotating groove (121) is smooth, butterfly plate (12) are by being equipped with centrosymmetric fixed slot (123) on clamp plate (2) one side, be equipped with fixed orifices (24) on clamp plate (2), fixed slot (123) correspond with the position and the size of fixed orifices (24).

3. The sealed butterfly valve of claim 2, wherein: the positioning mechanism (3) comprises a plurality of positioning rods (31) distributed along the circumference, the positioning rods (31) are vertically fixed on the pressing plate (2), the sealing rubber ring (13) is provided with positioning holes (131), and the positions and the sizes of the positioning holes (131) correspond to the positioning rods (31) one by one.

4. The sealed butterfly valve of claim 3, wherein: a plurality of locating rods (31) are arranged at the ends, far away from the pressing plate (2), of the locating rods in a detachable mode, locating grooves (32) are arranged on one sides, close to the butterfly plates (12), of the locating holes (131), and the shape and the size of the locating grooves (132) are consistent with those of the locating grooves (32).

5. The sealed butterfly valve of claim 4, wherein: the pressing plate (2) is provided with a driving groove (25) for fingers to extend into, and the driving groove (25) is eccentrically arranged.

6. The sealed butterfly valve of claim 5, wherein: sealing rubber ring (13) are equipped with first perpendicular scale (41) towards the top of clamp plate (2) one side, sealing rubber ring (13) are equipped with second perpendicular scale (42) towards the bottom of clamp plate (2) one side, valve body (1) is equipped with location scale (43) directly over perpendicular scale.