CN215861776U

CN215861776U - Double-flange sealing butterfly valve

Info

Publication number: CN215861776U
Application number: CN202121226273.XU
Authority: CN
Inventors: 李恩慧; 王长顺
Original assignee: Tianjin Thales Technology Development Co ltd
Current assignee: Tianjin Thales Technology Development Co ltd
Priority date: 2021-06-02
Filing date: 2021-06-02
Publication date: 2022-02-18
Anticipated expiration: 2031-06-02

Abstract

The utility model relates to the technical field of butterfly valves, in particular to a double-flange sealing butterfly valve which comprises a butterfly valve body, a first flange connector, a second flange connector and a valve plate, wherein the first flange connector and the second flange connector are symmetrically and fixedly connected to two sides of the butterfly valve body, the valve plate is arranged inside the butterfly valve body, a sealing ring is arranged on one side of the valve plate, a plurality of sealing mechanisms are arranged on the butterfly valve body, each sealing mechanism comprises a sliding block abutted against the corresponding sealing ring and arranged on the side wall of the butterfly valve body, the adjacent surfaces of the sealing rings and the sliding blocks are arranged in an inclined plane, and a first through groove used for the sliding of the sliding blocks is formed in the side wall of the butterfly valve body. According to the utility model, the sealing ring and the sliding block are arranged, and the adjacent surfaces of the sliding block and the sealing ring are arranged in an inclined plane, so that the sealing performance can be enhanced when the valve plate is closed, and the valve plate is prevented from loosening to cause fluid leakage.

Description

Double-flange sealing butterfly valve

Technical Field

The utility model relates to the technical field of butterfly valves, in particular to a double-flange seal.

Background

The butterfly valve is also called a flap valve, is a regulating valve with simple structure, can be used for the butterfly valve of the on-off control of the medium of the low-pressure pipeline, mean the closing member (valve clack or butterfly plate) is a disc, rotate to reach a kind of valve opened and closed around the valve shaft, the valve can be used for controlling the flow of various kinds of fluid such as air, water, steam, various corrosive media, mud, oil, liquid metal and radioactive medium, etc., mainly play a role in cutting off and throttling on the pipeline, the butterfly valve opens and closes the piece and is a disc-shaped butterfly plate, rotate around its own axis in the valve block, thus achieve the purpose of opening and close or regulating;

the existing butterfly valve is mostly a plurality of rubber seal and packing isotructure of simple valve clack cooperation, accomplishes the sealed of valve body, in long-time use, because the ageing easy sealing performance variation that leads to of part influences the butterfly valve leakproofness, so, according to this situation, need design a double flange seal butterfly valve.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a double-flange sealing butterfly valve which is used for solving the problems in the background technology.

The above object of the present invention is achieved by the following technical solutions:

a double-flange sealing butterfly valve comprises a butterfly valve body, a first flange connector, a second flange connector and a valve plate, wherein the first flange connector and the second flange connector are symmetrically and fixedly connected with two sides of the butterfly valve body, the valve plate is arranged inside the butterfly valve body, a sealing ring is arranged on one side of the valve plate, a plurality of sealing mechanisms are arranged on the butterfly valve body, each sealing mechanism comprises a sliding block abutted against the corresponding sealing ring and arranged on the side wall of the butterfly valve body, the sealing ring is arranged on the side wall, adjacent to the corresponding sliding block, of the corresponding sliding block in an inclined plane, a first through groove used for sliding of the sliding block is formed in the side wall of the butterfly valve body, a first spring is connected with the other end of the sliding block and the side wall of the first through groove, a second through groove penetrating through the first through groove is formed in the side wall of the butterfly valve body, and a sliding rod driving the sliding block to slide is arranged in the second through groove, the sliding block runs through along second through groove direction and is provided with and runs through the groove, the slide bar with run through the groove contact surface and personally submit the slope setting.

Through adopting above-mentioned technical scheme, when the valve plate was closed, the sealing washer and the sliding block of valve plate one side laminated mutually, the sealing washer with the adjacent inclined plane setting of personally submitting of sliding block can closely laminate, reinforcing leakproofness.

The utility model is further configured to: the top of valve plate is equipped with the top of accepting piece and fixed connection at first flange connector and second flange connector, accept the inside chamber way of having seted up of piece, it is equipped with the rotation case to accept the piece top, it has seted up the rotation chamber to rotate incasement portion, the one end of rotating the case is equipped with the dwang, the other end of dwang is equipped with the runner, the output of dwang alternates the inside in rotation chamber and the first bevel gear of fixedly connected with, first bevel gear meshing is connected with the second bevel gear, the bottom fixedly connected with valve rod of second bevel gear and with the valve plate rotates and is connected.

Through adopting above-mentioned technical scheme, rotation that can be very laborsaving the dwang is adjusted valve plate pivoted direction and size.

The utility model is further configured to: the valve rod bilateral symmetry in accepting the piece is provided with fixing device, fixing device is including running through the carriage release lever of accepting the piece lateral wall, the outside one end that the carriage release lever is located and accepts the piece is equipped with the stopper, the one end that the carriage release lever stretches into and accepts the piece inside is equipped with the holder, the carriage release lever has cup jointed the second spring, the one end of second spring with the holder is connected, the other end with accept the piece internal wall connection.

Through adopting above-mentioned technical scheme, can fix the valve rod to it is fixed the valve plate prevents the valve plate is not hard up, causes the leakage, has strengthened the leakproofness of valve plate.

The utility model is further configured to: the upper side and the lower side of the moving rod are symmetrically provided with limiting columns fixedly connected with the limiting blocks, and the limiting columns are arranged at one ends, close to the bearing blocks, of the limiting blocks.

Through adopting above-mentioned technical scheme, conveniently draw outward draw during the stopper, block spacing post, make holder and valve rod separation.

The utility model is further configured to: the lateral wall of the bearing block is arranged above the moving rod, and a sliding groove distributed along the vertical direction is formed in the upper portion of the moving rod, a sliding strip is arranged in the sliding groove in a sliding fit mode and comprises a transverse rod and a vertical rod, and the vertical rod of the sliding strip extends to the outer side of the lateral wall.

Through adopting above-mentioned technical scheme, make things convenient for spacing post butt on the montant of draw runner, make holder and valve rod loosen.

The utility model is further configured to: the clamping piece is an arc-shaped rod, and the radius of the clamping piece is the same as that of the valve rod.

Through adopting above-mentioned technical scheme, increased the area of contact of holder and valve rod, increased fixing device and the frictional force of valve rod.

The utility model is further configured to: the clamping piece is characterized in that the concave end of the clamping piece is provided with an anti-slip pad, and one surface of the anti-slip pad close to the valve rod is provided with a plurality of anti-slip lines.

Through adopting above-mentioned technical scheme, increased the frictional force of holder with the valve rod.

The utility model is further configured to: and a clamping block matched with the sliding rod is arranged on the outer side of the second flange connecting body.

Through adopting above-mentioned technical scheme, the drive sliding block that can be very simple moves to the sealing washer.

The utility model is further configured to: one side of the sliding block, which is close to the sealing ring, is set to be a concave arc surface.

Through adopting above-mentioned technical scheme, make the sliding block with the sealing washer laminating has strengthened the leakproofness of valve plate.

The utility model is further configured to: the sliding block is close to the terminal surface of sealing washer and is equipped with sealed the pad, the sealed one end that is close to the sealing washer of filling up is the inclined plane setting.

Through adopting above-mentioned technical scheme, strengthened the frictional force of sliding block and sealing washer has strengthened the leakproofness.

Compared with the prior art, the utility model provides a double-flange sealing butterfly valve which has the following beneficial effects:

1. according to the butterfly valve, the sealing ring and the sliding block are arranged, the adjacent surfaces of the sliding block and the sealing ring are arranged in an inclined plane, so that the sliding block and the sealing ring can be tightly attached to each other, the sealing property is enhanced when the valve plate is closed, the valve plate is prevented from loosening to cause fluid leakage, and the problem that the sealing property is poor due to component aging in the long-time use process of the butterfly valve is solved;

2. according to the utility model, the fixing device is arranged, and the valve rod is fastened through the clamping piece of the fixing device, so that the valve plate linked with the valve rod is prevented from loosening, the sealing performance of the valve plate is enhanced partially, and the opening and closing size of the valve plate can be controlled partially, so that the purpose of controlling the flow is achieved.

Drawings

FIG. 1 is a schematic side view of the present invention;

FIG. 2 is a front view of the present invention;

FIG. 3 is a cross-sectional view taken along line B-B of FIG. 2 in accordance with the present invention;

fig. 4 is a cross-sectional view taken along the line a-a of fig. 2 in accordance with the present invention.

In the figure: 1. a butterfly valve body; 11. a sealing mechanism; 111. a slider; 1111. a through groove; 112. a gasket; 113. a first through groove; 114. a first spring; 115. a second through groove; 116. a slide bar; 117. A clamping block; 2. a first flange connector; 3. a second flange connector; 5. a valve plate; 51. a seal ring; 6. a bearing block; 61. a fixing device; 611. a travel bar; 612. a limiting block; 613. a clamping member; 6131. A non-slip mat; 614. a second spring; 615. a limiting column; 616. a chute; 617. a slide bar; 62. a lumen; 7. a rotating box; 71. a first bevel gear; 72. a second bevel gear; 73. a rotation chamber; 8. a rotating wheel; 81. rotating the rod; 9. a valve stem.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example (b): referring to fig. 1, the butterfly valve comprises a butterfly valve body 1, a first flange connector 2, a second flange connector 3 and a valve plate 5, wherein the first flange connector 2 and the second flange connector 3 are symmetrically and fixedly connected to two sides of the butterfly valve body 1, a plurality of screw holes are arranged in the circumferential direction of the first flange connector 2 and the second flange connector 3, the valve plate 5 is arranged inside the butterfly valve body 1, a receiving block 6 is arranged at the top of the valve plate 5 and fixedly connected to the top ends of the first flange connector 2 and the second flange connector 3, a rotating box 7 is arranged at the top end of the receiving block 6,

referring to fig. 1 to 4, a sealing ring 51 is disposed on one side of a valve plate 5, a plurality of sealing mechanisms 11 are disposed on a butterfly valve body 1, each sealing mechanism 11 includes a first through groove 113 disposed in a side wall of the butterfly valve body 1, a sliding block 111 capable of sliding is disposed in the first through groove 113, one end of the sliding block 111 is adjacent to the sealing ring 51, the other end of the sliding block 111 is connected to a side wall of the first through groove 113, a first spring 114 is disposed on the other end of the sliding block 111, the sealing ring 51 is disposed adjacent to the sliding block 111 in an inclined plane, and the adjacent planes can be attached, the inclined plane of the sealing ring 51 and the valve plate 5 form an acute angle, a second through groove 115 penetrating through the first through groove 113 is disposed in the side wall of the butterfly valve body 1, a sliding rod 116 driving the sliding block 111 to slide is disposed in the second through groove 115, a fixture 117 matched with the sliding rod 116 is disposed on an outer side of the second flange connector 3, the sliding block 111 is disposed in a penetrating groove 1111 along a direction of the second through groove 115, the through groove 1111 can allow the sliding rod 116 to pass through, the contact surface of the sliding rod 116 and the through groove 1111 is obliquely arranged, the inclined surface of the through groove 1111 is adjacent to and can be attached to the inclined surface of the sliding rod 116, the inclined surface of the through groove 1111 is close to the first spring 114, before the valve plate 5 is opened, the sliding rod 116 is driven to move towards the first flange, the inclined surface of the sliding rod 116 is contacted with the inclined surface of the through groove 1111 and passes through the through groove 1111, the sliding block 111 is driven to move towards the direction far away from the sealing ring 51, so that the sealing ring 51 is separated from the contact with the adjacent surface of the sliding block 111, after the valve plate 5 is closed, the sliding rod 116 is driven to move towards the second flange, the sliding rod 116 passes through the through groove 1111, the sliding block 116 is separated from the through groove 1111, the sliding block 111 is restored to the original state under the action force of the spring, the sliding block 111 is driven to move towards the sealing ring 51, the side of the sliding block 111 close to the concave arc surface, so that the inclined surface of the sealing ring 51 is closely attached to the inclined surface of the sliding block 111, the sealing performance is enhanced, the valve plate 5 is prevented from loosening to cause fluid leakage,

the cavity channel 62 is arranged inside the bearing block 6, the rotating cavity 73 is arranged inside the rotating box 7, one end of the rotating box 7 is rotatably connected with a rotating rod 81, the output end of the rotating rod 81 penetrates into the rotating cavity 73 and is fixedly connected with a first bevel gear 71, the first bevel gear 71 is meshed with a second bevel gear 72, the bottom of the second bevel gear 72 is fixedly connected with a valve rod 9 and is rotatably connected with the valve plate 5, the first bevel gear 71 is larger than the second bevel gear 72, a user can easily drive the first bevel gear 71 to rotate by rotating the rotating wheel 8, the second bevel gear 72 is driven to rotate, the valve plate 5 is driven to be closed, and the efficiency is improved,

referring to fig. 1 and 3, the two sides of the valve rod 9 in the receiving block 6 are symmetrically provided with fixing devices 61, each fixing device 61 includes a moving rod 611 penetrating through the side wall of the receiving block 6, one end of the moving rod 611 located outside the receiving block 6 is provided with a limit block 612, one end of the moving rod 611 extending into the receiving block 6 is provided with a clamping piece 613, the moving rod 611 is sleeved with a second spring 614, one end of the second spring 614 is connected with the clamping piece 613, the other end of the second spring is connected with the inner wall of the receiving block 6, through the fixing device 61, the clamping piece 613 and the valve rod 9 are in a clamping state under the action of the spring, the valve rod 9 is prevented from loosening, further, the valve plate 5 is prevented from loosening and leakage caused by loosening, the sealing performance of the valve plate 5 is enhanced, the upper and lower sides of the moving rod 611 are symmetrically provided with limit posts 615 fixedly connected with the limit blocks 612, the limit posts 615 are arranged at the ends of the limit blocks 612 close to the receiving block 6, so that the limit blocks 612 are separated from the side wall of the receiving block 6, the space is reserved between the limiting block 612 and the side wall of the bearing block 6, the outward pulling is facilitated, the clamping piece 613 is separated from the valve rod 9, the sliding groove 616 distributed along the vertical direction is formed in the outer side wall of the bearing block 6 and located above the moving rod 611, the sliding groove 616 is in sliding fit with the sliding strip 617, the sliding strip 617 comprises a cross rod and a vertical rod, the vertical rod of the sliding strip 617 extends to the outer side of the side wall, when the limiting block 612 is pulled outward, the sliding strip 617 can slide down in the sliding groove 616 according to the gravity, when the limiting block 612 is released, the moving rod 611 moves towards the valve rod 9 under the action of the second spring 614, the limiting column 615 can abut against the vertical rod of the sliding strip 617, at the moment, the clamping piece 613 is separated from the valve rod 9, the clamping piece 613 is an arc-shaped rod, the radius of the clamping piece 613 is the same as that of the valve rod 9, the contact area of the clamping piece 613 and the valve rod 9 is increased, and the friction force of the fixing device 61 and the valve rod 9 is increased, the concave surface end of the clamping piece 613 is provided with a non-slip mat 6131, and one surface of the non-slip mat 6131 close to the valve rod 9 is provided with a plurality of non-slip lines, so that the friction force between the clamping piece 613 and the valve rod 9 is increased.

The working principle is as follows: in the use process of the utility model, the limit block 612 is pulled to be far away from the bearing block 61, the sliding strip 617 slides downwards in the sliding groove 616 under the action of gravity, the limit block 612 is released, the limit column 615 can be abutted against the vertical strip of the sliding strip 617, the clamping piece 613 is separated from the valve rod 9, the rotating wheel 8 is rotated to drive the first bevel gear 71 to rotate, the first bevel gear 71 drives the first bevel gear 71 meshed with the first bevel gear to rotate, so as to open and close the valve plate 5, before the valve plate 5 needs to be opened, the sliding rod 116 is driven to move towards the first flange connecting body 2, the inclined surface of the sliding rod 116 is contacted with the inclined surface of the through groove 1111 and passes through the through groove 1111, the sliding rod 111 is driven to move towards the direction of the first sliding block spring 114, the sliding rod 111 is separated from the sealing ring 51, after the valve plate 5 is closed, the sliding rod 116 is driven to move towards the second flange connecting body 3, when the sliding rod 116 is separated from the through groove 1111, the sliding rod 111 is restored to the original state under the acting force of the spring, the inclined surface of the sealing ring 51 is tightly attached to the inclined surface of the sliding block 111, the valve plate 5 is opened by rotating the rotating wheel 8, the sliding strip 617 moves upwards, the limiting block 612 is released, and the clamping piece 613 is tightly clamped with the valve rod 9 under the action of the spring to prevent the valve plate 5 from loosening.

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 an … …" does not exclude the presence of other identical elements 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 utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a two flange seal butterfly valve, includes butterfly valve body (1), first flange connector (2), second flange connector (3) and valve plate (5), first flange connector (2) and second flange connector (3) symmetry fixed connection be in the both sides of butterfly valve body (1), the inside of butterfly valve body (1) is equipped with valve plate (5), its characterized in that: one side of valve plate (5) is provided with sealing washer (51), be equipped with a plurality of sealing mechanism (11) on butterfly valve body (1), sealing mechanism (11) include with sliding block (111) of sealing washer (51) butt, it locates on the lateral wall of butterfly valve body (1), sealing washer (51) with sliding block (111) adjacent personally submit the inclined plane setting, the lateral wall of butterfly valve body (1) is equipped with and is used for gliding first logical groove (113) of sliding block (111), the other end of sliding block (111) and the lateral wall of first logical groove (113) are connected with first spring (114), be equipped with in the lateral wall of butterfly valve body (1) and run through second logical groove (115) of first logical groove (113), be equipped with gliding slide bar (116) of drive sliding block (111) in second logical groove (115), sliding block (111) are followed second logical groove (115) direction runs through and are provided with through groove (1111), the sliding rod (116) and the contact surface of the through groove (1111) are obliquely arranged.

2. A double flange seal butterfly valve according to claim 1, wherein: the top of valve plate (5) is equipped with the top of bearing block (6) and fixed connection at first flange connector (2) and second flange connector (3), the inside chamber way (62) of having seted up of bearing block (6), the bearing block top is equipped with rotates case (7), it rotates chamber (73) to rotate case (7) inside having seted up, the one end of rotating the case is equipped with dwang (81), the output of dwang (81) alternates to rotate the inside and the first bevel gear of fixedly connected with (71) in chamber (73), the other end of dwang (81) is equipped with runner (8), first bevel gear (71) meshing is connected with second bevel gear (72), the bottom fixedly connected with valve rod (9) of second bevel gear (72) and with valve plate (5) rotate and connect.

3. A double flange seal butterfly valve according to claim 2, wherein: valve rod (9) bilateral symmetry in the piece (6) that holds in touch with is provided with fixing device (61), fixing device (61) are including running through carriage release lever (611) of piece (6) lateral wall, the outside one end that lies in piece (6) that holds in touch with of carriage release lever (611) is equipped with stopper (612), the one end that carriage release lever (611) stretched into the piece (6) inside is equipped with holder (613), carriage release lever (611) have cup jointed second spring (614), the one end of second spring (614) with holder (613) are connected, the other end with hold in touch with piece (6) inner wall connection.

4. A double flange seal butterfly valve according to claim 3, wherein: the upper side and the lower side of the movable rod (611) are symmetrically provided with limit columns (615) fixedly connected with the limit block (612), and the limit columns (615) are arranged at one end, close to the bearing block (6), of the limit block (612).

5. A double-flange sealed butterfly valve according to claim 4, wherein: the lateral wall of bearing piece (6) just is located the top of carriage release lever (611) and sets up spout (616) that distribute along vertical direction, and sliding fit has draw runner (617) in spout (616), draw runner (617) include horizontal pole and montant, the montant of draw runner (617) extends to the outside of lateral wall.

6. A double flange seal butterfly valve according to claim 3, wherein: the clamping piece (613) is an arc-shaped rod, and the radius of the clamping piece (613) is the same as that of the valve rod (9).

7. The double-flange sealed butterfly valve of claim 6, wherein: the clamping piece (613) is provided with a non-slip mat (6131) at the concave end, and a plurality of non-slip lines are arranged on the surface, close to the valve rod (9), of the non-slip mat (6131).

8. A double flange seal butterfly valve according to claim 1, wherein: and a clamping block (117) matched with the sliding rod (116) is arranged on the outer side of the second flange connecting body (3).

9. A double flange seal butterfly valve according to claim 1, wherein: one side of the sliding block (111) close to the sealing ring (51) is set to be a concave arc surface.

10. A double flange seal butterfly valve according to claim 1, wherein: the end face of sliding block (111) near sealing washer (51) is equipped with sealed pad (112), the one end that sealed pad (112) are close to sealing washer (51) is the inclined plane setting.