CN115467985B

CN115467985B - Adjustable valve

Info

Publication number: CN115467985B
Application number: CN202211124536.5A
Authority: CN
Inventors: 董旭; 孙启文; 朱文亚; 孙胜鑫
Original assignee: Jiangsu Kaiao Machinery Manufacturing Co ltd
Current assignee: Jiangsu Kaiao Machinery Manufacturing Co ltd
Priority date: 2022-09-15
Filing date: 2022-09-15
Publication date: 2023-10-27
Anticipated expiration: 2042-09-15
Also published as: CN115467985A

Abstract

The invention relates to the technical field of valves, in particular to an adjustable valve, which comprises a valve body, wherein a flow pipe is arranged in the valve body, a first butterfly plate and a second butterfly plate hinged with the first butterfly plate are arranged in the flow pipe, the first butterfly plate is connected with a valve rod piece, the second butterfly plate is connected with a valve rod sleeve sleeved on the valve rod piece, a valve cover is arranged on the valve body, a sliding groove is horizontally arranged in the valve cover, a sliding block slides in the sliding groove, a groove is arranged in the sliding block, a first clamping groove and a second clamping groove are respectively arranged on the left side and the right side of the groove, a first clamping rod and a second clamping rod are respectively arranged in the first clamping groove and the second clamping groove in a sliding manner, the first clamping rod is connected with the valve rod piece, the second clamping rod is connected with the valve rod sleeve, the sliding block is connected with a driving component, the driving component is used for controlling the sliding block to move forwards and backwards in the sliding groove, sub clamping pieces are respectively arranged on the front side and the rear side of the sliding block, and the sliding block is provided with a female clamping piece matched with the sub clamping pieces.

Description

Adjustable valve

Technical Field

The invention relates to the technical field of valves, in particular to an adjustable valve.

Background

The valve is a control component in the fluid conveying system and has the functions of stopping, adjusting, guiding flow, preventing reverse flow and the like.

For example, 6.26.2020 discloses a GIS air chamber hidden rod valve gate opening device with a publication number of CN210860032U, and relates to the technical field of GIS inflation valve equipment safety. The GIS air chamber blind rod gate valve is opened and closed through valve handle control, the valve handle steering wheel is connected with the blind valve rod relatively motionless when the GIS blind rod gate valve is opened and closed, the size of the blind rod gate valve is small, the valve state is difficult to judge after the valve rod rotates, the valve state change is difficult to judge, the device comprises a hoop and a limiting piece, the hoop clamp is fastened on a valve rod jacket of the valve, one end of the limiting piece is sleeved on the blind valve rod below the valve handle of the valve, and the other end of the limiting piece is connected and fixed with the hoop. The rotary limiting device is characterized in that the rotary limiting device is fixedly connected with the valve rod sleeve through the anchor ear, the limiting piece is sleeved on the hidden valve rod through the limiting piece, and then the limiting piece is fixedly connected with the anchor ear, so that the rotary limiting of the valve can be conveniently realized, and the judging of the opening and closing states of the valve can be conveniently realized through the position angle of the limiting piece; however, the applicant has found that although it is possible to determine the opening and closing of the valve, it is not mentioned how to achieve maximum opening.

Disclosure of Invention

Therefore, the present invention is directed to an adjustable valve to solve the problem of how to achieve maximum opening.

Based on the above object, the invention provides an adjustable valve, which comprises a valve body, wherein a flow pipe is arranged in the valve body, a first butterfly plate and a second butterfly plate hinged with the first butterfly plate are arranged in the flow pipe, the first butterfly plate is connected with a valve rod piece, the second butterfly plate is connected with a valve rod sleeve sleeved on the valve rod piece, a valve cover is arranged on the valve body, a sliding groove is horizontally arranged in the valve cover, a sliding block is arranged in the sliding groove in a sliding way, a slot is formed in the sliding block, a first clamping groove and a second clamping groove are respectively formed in the left side and the right side of the slot, a first clamping rod and a second clamping rod are respectively arranged in the first clamping groove and the second clamping groove in a sliding way, the first clamping rod is connected with the valve rod piece through a first connecting arm, the second clamping rod is connected with the valve rod sleeve through a second connecting arm, the sliding block is connected with a driving component, the driving component is used for controlling the sliding block to move forwards and backwards in the sliding groove, and the front side and the rear side of the sliding block are respectively provided with a clamping piece which is fixedly matched with a master piece and a slave piece.

Optionally, the drive assembly include with slider fixed connection's rack, the rack with spout sliding connection, the meshing transmission is connected with the gear on the rack, the gear is connected with the turbine coaxially, the rack top be provided with turbine meshing transmission is connected's worm, the worm is connected with the axis of rotation, the axis of rotation tip is provided with driving motor or rotates the hand wheel.

The rotating shaft is rotated, the turbine is driven to rotate through the rotation of the worm, the turbine rotates to drive the rack to move, the sliding block moves in the sliding groove, the valve body is opened and closed, and the first butterfly plate and the second butterfly plate are not driven to rotate when fluid impacts exist in the flow pipe due to the arrangement of the worm and the turbine.

Optionally, an observation port formed in the valve cover is formed between the two sub-clamping pieces, a transparent observation plate is arranged on the observation port, a graduated scale is arranged on the transparent observation plate, and a pointing head fixedly connected with the sliding block is arranged on one side of the graduated scale.

Optionally, female fastener be with the clamping axle that the slider is connected, the sub-fastener includes the restriction piece, be connected with the head rod through first pivot on the restriction piece, head rod one end be provided with the fixture block that the clamping axle cooperation set up, head rod other end upside through first elastic spring with restriction piece fixed connection, head rod upside swing joint has first movable rod, set up on the valve gap be used for first movable rod runs through first movable groove, first movable rod one side is provided with the display sleeve, the downside of head rod one end is provided with protruding mass.

Optionally, the sub-fastener includes the restriction piece, fixed first semicircle shell that is provided with on the restriction piece, coaxial rotation is connected with the semicircle piece in the first semicircle shell, the semicircle piece through the second pivot with first semicircle shell is connected, seted up the slide opening on the first semicircle shell lateral wall, the semicircle piece is connected with and runs through the second connecting rod of slide opening, second connecting rod other end swing joint has the second movable rod, set up on the valve gap and be used for the second movable rod runs through the second movable groove, second connecting rod middle part through the second elastic spring with the restriction piece or the valve gap is connected, female fastener include with slider fixed connection's second semicircle shell, the second semicircle shell with first semicircle shell constitutes a full circle shell, the second semicircle shell with the side that the sub-fastener set up in opposite directions the triangle guide block is with semicircle piece contact time, along with slider and triangle guide block removal, triangle guide block control second semicircle guide rod rotates with semicircle guide block, and then drives the second connecting rod and rotates with semicircle block control.

Optionally, be provided with the suggestion switch on the spout inside wall, the suggestion switch is located first removal groove or second removes groove one side touch the suggestion switch and be used for the opening of suggestion switch when the head rod or the second connecting rod rotates, card axle and fixture block joint or second semicircular shell with semicircle piece joint this moment.

Optionally, the first butterfly plate and the second butterfly plate are semicircular, the first butterfly plate with all be provided with the arc triangular side on the arc lateral wall of second butterfly plate, be provided with the disk seat on the runner pipe inside wall, be provided with on the disk seat with the arc triangular groove that the cooperation of arc triangular side set up, arc triangular groove or arc triangular side are provided with the arc lug, be provided with on arc triangular side or the arc triangular groove with the arc recess that the cooperation of arc lug set up.

Optionally, the upper portion and the lower part of second butterfly plate plane lateral wall all through fixed cover with valve rod spare fixed connection, first butterfly plate middle part is fixed with the cover and establishes rotate the cover on the valve rod spare, rotate the cover and be located two between the fixed cover, rotate the cover with sliding connection between the fixed cover, rotate the cover or be provided with annular sliding tray on the fixed cover, fixed cover or rotate and overlap be provided with annular sliding tray cooperation setting's annular sliding tray.

Optionally, be provided with first arc flange on the fixed cover lateral wall, be provided with on the first butterfly plate with the first arc flitch that first arc flange cooperation set up, when first butterfly plate terminal surface and second butterfly plate terminal surface are located the coplanar, first arc flange and first arc flitch contact setting, be provided with the second arc flange on the rotating cover lateral wall, be provided with on the second butterfly plate with the second arc flitch that the cooperation of second arc flange set up, when second butterfly plate terminal surface and second butterfly plate terminal surface are located the coplanar, second arc flange and second arc flitch contact setting.

Optionally, the valve rod cover outside cover is equipped with first packing, be provided with first packing on the first packing and press the cover, first packing press the cover be provided with the first packing clamp plate that the valve body is connected, the valve rod cover outside cover is equipped with the second packing, the second packing is located valve rod cover upper portion, second packing upper end is provided with the second packing and presses the cover, second packing press the cover upper end be provided with the second packing clamp plate that the valve rod cover is connected.

The invention has the beneficial effects that: according to the adjustable valve provided by the invention, when the valve needs to be opened, the driving assembly is controlled, the driving assembly is used for controlling the sliding block to move forwards in the sliding groove to drive the first clamping groove and the second clamping groove to move forwards, when the first connecting arm and the valve rod piece rotate anticlockwise by between zero and ninety degrees, the valve is in an opened state, when the first connecting arm and the valve rod piece rotate anticlockwise by ninety degrees, the second connecting arm and the valve rod sleeve rotate clockwise by ninety degrees, the first butterfly plate and the second butterfly plate are arranged in parallel, and the sub clamping piece and the main clamping piece are clamped for completely opening the valve; when the valve is required to be closed, the driving assembly is controlled, the driving assembly is used for controlling the sliding block to move backwards in the sliding groove, the first clamping groove and the second clamping groove are driven to move backwards, the first connecting arm and the valve rod piece rotate anticlockwise, the second connecting arm and the valve rod sleeve rotate clockwise, the sub-clamping piece and the main clamping piece are clamped when the first butterfly plate and the second butterfly plate are coplanar, the valve is closed, the valve is controlled to be closed and opened to the greatest extent, the judgment of the opening and closing state of the valve is facilitated, and meanwhile excessive abrasion of the first butterfly plate and the second butterfly plate is avoided, and the precision of opening of the valve is affected.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of an embodiment of the present invention;

FIG. 2 is an enlarged schematic view of the structure of FIG. 1A;

FIG. 3 is an enlarged schematic view of the structure at B in FIG. 1;

FIG. 4 is a schematic view of a partial top view of a valve body according to an embodiment of the present invention;

FIG. 5 is an enlarged schematic view of the structure of FIG. 4 at C;

FIG. 6 is a schematic diagram of the first butterfly plate and the second butterfly plate according to an embodiment of the invention;

FIG. 7 is a schematic view of a partial structure of a valve cover according to an embodiment of the present invention;

FIG. 8 is a schematic view of a fully opened valve according to an embodiment of the present invention;

FIG. 9 is a schematic view of a fully closed valve according to an embodiment of the present invention;

fig. 10 is a schematic view illustrating a contact structure between a first arc-shaped convex plate and a first arc-shaped flitch according to an embodiment of the present invention.

In the figure: 1. a valve body; 2. a valve cover; 3. a first butterfly plate; 4. a second butterfly plate; 5. a valve rod member; 6. a flow pipe; 7. a valve seat; 8. a valve stem cover; 9. a rotating shaft; 10. a worm; 11. a turbine; 12. a rack; 13. a slide block; 14. a chute; 15. a through hole; 16. a first clamping groove; 17. a second clamping groove; 18. a first clamping rod; 19. a second clamping rod; 20. a first connecting arm; 21. a second connecting arm; 22. slotting; 23. a first packing element; 24. a first packing platen; 25. a second packing member; 26. a second packing platen; 27. a fixed sleeve; 28. a rotating sleeve; 29. a first arcuate projection; 30. a first arcuate flitch; 31. arc triangular edges; 32. arc triangular grooves; 33. a sub-clip member; 34. a female clip; 35. a drive assembly; 330. a limiting block; 331. a clamping shaft; 332. a clamping block; 333. a first rotating shaft; 334. limiting the shaft; 335. a first elastic spring; 336. a first moving lever; 337. a first moving groove; 338. a first connecting rod; 340. a second rotating shaft; 341. a second connecting rod; 342. a second elastic spring; 343. a first semicircular shell; 344. a semicircle block; 345. a slide hole; 346. triangular guide blocks; 347. a second moving lever; 348. a second moving groove; 349. a second semi-circular shell.

Detailed Description

The present invention will be further described in detail below with reference to specific embodiments and with reference to the accompanying drawings, in order to make the objects, technical solutions and advantages of the present invention more apparent.

It should be noted that unless otherwise defined, technical or scientific terms used in the embodiments of the present invention should be given the ordinary meaning as understood by one of ordinary skill in the art to which the present invention belongs. The terms "first," "second," and the like, as used herein, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that elements or items preceding the word are included in the element or item listed after the word and equivalents thereof, but does not exclude other elements or items. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", etc. are used merely to indicate relative positional relationships, which may also be changed when the absolute position of the object to be described is changed.

As shown in fig. 1, 7, 8 and 9, an adjustable valve comprises a valve body 1, a runner pipe 6 is arranged in the valve body 1, a through hole 15 communicated with the runner pipe 6 is arranged in the valve body 1, a first butterfly plate 3 and a second butterfly plate 4 hinged with the first butterfly plate 3 are arranged in the runner pipe 6, the first butterfly plate 3 is connected with a valve rod piece 5, the second butterfly plate 4 is connected with a valve rod sleeve 8 sleeved on the valve rod piece 5, the valve rod sleeve 8 penetrates through the through hole 15, a valve cover 2 is arranged on the valve body 1, a sliding groove 14 horizontally arranged in the valve cover 2, a sliding block 13 is arranged in the sliding groove 14, a groove 22 is arranged in the sliding groove 13, a first clamping groove 16 and a second clamping groove 17 are respectively arranged on the left side and the right side of the groove 22, a first clamping rod 18 and a second clamping rod 19 are respectively arranged in a sliding manner in the second clamping groove 17, when a first clamping rod 19 and a second clamping rod 19 are connected with the first clamping rod piece 18 and a second clamping rod piece 18 and a driving piece 34 are connected with a driving piece 34 on the front side of the sliding block 13 and the sliding block 13, and a driving piece 34 is arranged on the sliding groove 13, and is connected with a driving piece 34 on the sliding block 13 through the sliding groove 13, and the sliding piece 34 is connected with the sliding piece 34, and the sliding piece 34 is arranged on the sliding part, and is connected with the sliding piece 13, and the sliding piece 34, when the sliding piece is connected with the sliding piece 13, and the sliding piece is provided with the sliding piece. The valve is in a closed state.

When the valve needs to be opened, the driving assembly 35 is controlled, the driving assembly 35 is used for controlling the sliding block 13 to move forwards in the sliding groove 14 to drive the first clamping groove 16 and the second clamping groove 17 to move forwards, when the first connecting arm 20 and the valve rod piece 5 rotate anticlockwise by between zero and ninety degrees, the valve is in an open state, when the first connecting arm 20 and the valve rod piece 5 rotate anticlockwise by ninety degrees, the second connecting arm 21 and the valve rod sleeve 8 rotate anticlockwise by ninety degrees, the first butterfly plate 3 and the second butterfly plate 4 are arranged in parallel, and the sub-clamping piece 33 is clamped with the female clamping piece 34 for completely opening the valve; when the valve needs to be closed, the driving assembly 35 is controlled, the driving assembly 35 is used for controlling the sliding block 13 to move backwards in the sliding groove 14 to drive the first clamping groove 16 and the second clamping groove 17 to move backwards, the first connecting arm 20 and the valve rod piece 5 rotate anticlockwise, the second connecting arm 21 and the valve rod sleeve 8 rotate clockwise, when the first butterfly plate 3 and the second butterfly plate 4 are coplanar, the sub-clamping piece 33 is clamped with the female clamping piece 34 and used for closing the valve, closing and opening of the valve to the greatest extent are convenient to control, judging of the opening and closing state of the valve is convenient, and meanwhile excessive abrasion of the first butterfly plate 3 and the second butterfly plate 4 is avoided, and the accuracy of opening of the valve is affected.

In order to be convenient for control first butterfly plate 3 and second butterfly plate 4 rotate, do not drive first butterfly plate 3 and second butterfly plate 4 to rotate when there is fluid to strike in runner pipe 6 simultaneously, drive assembly 35 include with slider 13 fixed connection's rack 12, rack 12 with spout 14 sliding connection, the last meshing transmission of rack 12 is connected with the gear, the coaxial turbine 11 that is connected with of gear, rack 12 top be provided with turbine 11 meshing transmission connection's worm 10, worm 10 is connected with axis of rotation 9, axis of rotation 9 tip is provided with driving motor or rotation hand wheel, rotates axis of rotation 9, rotates through worm 10 and drives turbine 11 and rotates, and turbine 11 rotates and then drives rack 12 and remove for slider 13 moves in spout 14, realizes that valve body 1 opens and close because of worm 10 and turbine 11's setting, does not drive first butterfly plate 3 and second butterfly plate 4 to rotate when there is the fluid to strike in runner pipe 6.

In order to be convenient for observe the control of valve velocity of flow, two be provided with between the sub-fastener 33 set up the viewing aperture on the valve gap 2, be provided with transparent viewing plate on the viewing aperture, be provided with the scale on the transparent viewing plate, scale one side be provided with slider 13 fixed connection's directional head, at slider 13 removal in spout 14, directional head directional scale, the people of being convenient for observe valve velocity of flow through the scale.

As shown in fig. 8, as an embodiment, the female clamping member 34 is a clamping shaft 331 connected to the slider 13, the sub-clamping member 33 includes a limiting block 330, a first connecting rod 338 is connected to the limiting block 330 through a first rotating shaft 333, one end of the first connecting rod 338 is provided with a clamping block 332 that is matched with the clamping shaft 331, the upper side of the other end of the first connecting rod 338 is fixedly connected to the limiting block 330 through a first elastic spring 335, a limiting shaft 334 is provided above the first connecting rod 338, the limiting shaft 334 is fixedly connected to the limiting block 330, the limiting shaft 334 is located between the first rotating shaft 333 and the first elastic spring 335, a first moving rod 336 is movably connected to the upper side of the first connecting rod 338, the valve cover 2 is provided with a first moving groove 337 for the first moving rod 336 to penetrate, one side of the first moving rod 336 is provided with a display sleeve, the lower side of one end of the first connecting rod 338 is provided with a convex mass block, when the sliding block 13 moves, the lower side wall of the clamping block 332 is firstly contacted with the clamping shaft 331, wherein the limiting shaft 334 is used for limiting the lower side wall of the clamping block 332 to be firstly contacted with the clamping shaft 331, then the clamping block 332 is clamped with the clamping shaft 331, the lower side wall of the clamping block 332 is obliquely arranged, and as the clamping shaft 331 is fixedly arranged, the first connecting rod 338 rotates anticlockwise along with the sliding block 13, so that the first moving rod 336 moves outwards of the valve cover 2, when people can see the display sleeve, the valve is completely opened or opened, and the clamping block 332 is clamped with the clamping shaft 331.

As shown in fig. 9, as another embodiment, the sub-clip 33 and the parent clip 34 may be replaced, the sub-clip 33 includes a limiting block 330, a first semicircular shell 343 is fixedly disposed on the limiting block 330, a semicircular block 344 is coaxially and rotatably connected in the first semicircular shell 343, the semicircular block 344 is connected with the first semicircular shell 343 through a second rotating shaft 340, a sliding hole 345 is formed on a side wall of the first semicircular shell 343, the semicircular block 344 is connected with a second connecting rod 341 penetrating through the sliding hole 345, a second moving rod 347 is movably connected with the other end of the second connecting rod 341, a second moving groove 348 for penetrating the second moving rod 347 is formed on the valve cover 2, the middle part of the second connecting rod 341 is connected with the limiting block 330 or the valve cover 2 through a second elastic spring 342, the parent clip 34 includes a second semicircular shell 349 fixedly connected with the sliding block 13, the second semicircular shell 349 and the first semicircular shell 343 form a sliding hole 345, when the second semicircular shell is in contact with the second semicircular shell 343, and the second semicircular shell 346 is completely opened, and when the second semicircular shell 346 is completely rotates and the second semicircular shell 346 is completely contacts with the sliding block 346 or the second triangular shell 346, and the second triangular shell 346 is completely rotates, and the second triangular shell 346 is completely contacts with the sliding rod 346 or the sliding rod 346 when the second semicircular shell 346 is completely rotates.

The inner side wall of the sliding groove 14 is provided with a prompt switch, the prompt switch is located on one side of the first moving groove 337 or the second moving groove 348, and when the first connecting rod 338 or the second connecting rod 341 rotates, the prompt switch is touched to be used for opening the prompt switch, and at this time, the clamping shaft 331 is clamped with the clamping block 332 or the second semicircular shell 349 is clamped with the semicircular block 344.

The prompting switch is a sound switch or a pressure switch, the sound switch is pressed to have prompting music, the pressure switch is connected with a display lamp, and when the pressure switch is pressed, the display lamp is turned on.

As shown in fig. 4 and 5, in order to facilitate improvement of the tightness, the first butterfly plate 3 and the second butterfly plate 4 are semicircular plates, the first butterfly plate 3 and the second butterfly plate 4 are provided with arc triangular edges 31 on arc side walls, valve seats 7 are arranged on inner side walls of the flow pipes 6, arc triangular grooves 32 matched with the arc triangular edges 31 are arranged on the valve seats 7, arc protruding blocks are arranged on the arc triangular grooves 32 or the arc triangular edges 31, and arc grooves matched with the arc protruding blocks are arranged on the arc triangular edges 31 or the arc triangular grooves 32.

As shown in fig. 6, in order to facilitate connection between the first butterfly plate 3 and the second butterfly plate 4, and simultaneously facilitate improvement of tightness, the upper portion and the lower portion of the planar side wall of the second butterfly plate 4 are fixedly connected with the valve rod member 5 through a fixing sleeve 27, a rotating sleeve 28 sleeved on the valve rod member 5 is fixed in the middle of the first butterfly plate 3, the rotating sleeve 28 is located between the two fixing sleeves 27, the rotating sleeve 28 is slidably connected with the fixing sleeves 27, an annular sliding groove is arranged on the rotating sleeve 28 or the fixing sleeve 27, and an annular sliding block matched with the annular sliding groove is arranged on the fixing sleeve 27 or the rotating sleeve 28.

As shown in fig. 10, in order to further improve the tightness, a first arc-shaped protruding plate 29 is disposed on the outer side wall of the fixed sleeve 27, a first arc-shaped attaching plate 30 that is matched with the first arc-shaped protruding plate 29 is disposed on the first butterfly plate 3, when the end face of the first butterfly plate 3 and the end face of the second butterfly plate 4 are located on the same plane, the first arc-shaped protruding plate 29 is in contact with the first arc-shaped attaching plate 30, a second arc-shaped protruding plate is disposed on the outer side wall of the rotating sleeve 28, a second arc-shaped attaching plate that is matched with the second arc-shaped protruding plate is disposed on the second butterfly plate 4, and when the end face of the second butterfly plate 4 and the end face of the second butterfly plate 4 are located on the same plane, the second arc-shaped protruding plate is in contact with the second arc-shaped attaching plate.

As shown in fig. 1, 2 and 3, in order to improve the tightness, a first packing member 23 is sleeved on the outer side of the valve rod sleeve 8, a first packing pressing sleeve is arranged on the first packing member 23, a first packing pressing plate 24 connected with the valve body 1 is arranged on the first packing pressing sleeve, a second packing member 25 is sleeved on the outer side of the valve rod 5, the second packing member 25 is located on the upper portion of the valve rod sleeve 8, a second packing pressing sleeve is arranged at the upper end of the second packing member 25, and a second packing pressing plate 26 connected with the valve rod sleeve 8 is arranged at the upper end of the second packing pressing sleeve.

Those of ordinary skill in the art will appreciate that: the discussion of any of the embodiments above is merely exemplary and is not intended to suggest that the scope of the invention is limited to these examples; the technical features of the above embodiments or in the different embodiments may also be combined within the idea of the invention, the steps may be implemented in any order and there are many other variations of the different aspects of the invention as described above, which are not provided in detail for the sake of brevity.

The embodiments of the invention are intended to embrace all such alternatives, modifications and variances which fall within the broad scope of the appended claims. Therefore, any omission, modification, equivalent replacement, improvement, etc. of the present invention should be included in the scope of the present invention.

Claims

1. The utility model provides an adjustable valve, includes valve body (1), offered runner pipe (6) in valve body (1), its characterized in that, be provided with first butterfly plate (3) in runner pipe (6) and with second butterfly plate (4) that first butterfly plate (3) articulated set up, first butterfly plate (3) are connected with valve rod spare (5), second butterfly plate (4) are connected with and overlap valve rod cover (8) of establishing on valve rod spare (5), be provided with valve gap (2) on valve body (1), spout (14) that horizontal set up in valve gap (2), slide in spout (14) have slider (13), open fluting (22) in slider (13), first draw-in groove (16) and second draw-in groove (17) have been seted up respectively on fluting (22) left side and right side, first draw-in groove (16) and second draw-in groove (17) are provided with first clamping lever (18) and second clamping lever (19) in the slip respectively, first clamping lever (18) and second clamping lever (19) are connected through first arm (18) and second arm (35) link joint (20), the driving assembly (35) is used for controlling the sliding block (13) to move back and forth in the sliding groove (14), sub-clamping pieces (33) fixedly connected with the sliding groove (14) are arranged on the front side and the rear side of the sliding block (13), and a female clamping piece (34) matched with the sub-clamping pieces (33) is arranged on the sliding block (13);

the upper portion and the lower part of second butterfly plate (4) plane lateral wall all through fixed cover (27) with valve rod spare (5) fixed connection, first butterfly plate (3) middle part is fixed with the cover and is established rotating cover (28) on valve rod spare (5), rotate cover (28) and be located two between fixed cover (27), rotate cover (28) with sliding connection between fixed cover (27), rotate cover (28) or be provided with annular sliding groove on fixed cover (27), fixed cover (27) or be provided with on rotating cover (28) with annular sliding block that annular sliding groove cooperation set up.

2. An adjustable valve according to claim 1, characterized in that the driving assembly (35) comprises a rack (12) fixedly connected with the sliding block (13), the rack (12) is slidably connected with the sliding groove (14), a gear is connected to the rack (12) in a meshed transmission manner, a turbine (11) is coaxially connected to the gear, a worm (10) in meshed transmission connection with the turbine (11) is arranged above the rack (12), the worm (10) is connected with a rotating shaft (9), and a driving motor or a rotating hand wheel is arranged at the end of the rotating shaft (9).

3. An adjustable valve according to claim 1, characterized in that an observation port formed in the valve cover (2) is arranged between the two sub-clamping pieces (33), a transparent observation plate is arranged on the observation port, a graduated scale is arranged on the transparent observation plate, and a pointing head fixedly connected with the sliding block (13) is arranged on one side of the graduated scale.

4. The adjustable valve according to claim 1, wherein the female clamping piece (34) is a clamping shaft (331) connected with the sliding block (13), the sub-clamping piece (33) comprises a limiting block (330), a first connecting rod (338) is connected to the limiting block (330) through a first rotating shaft (333), a clamping block (332) matched with the clamping shaft (331) is arranged at one end of the first connecting rod (338), the upper side of the other end of the first connecting rod (338) is fixedly connected with the limiting block (330) through a first elastic spring (335), a first moving rod (336) is movably connected to the upper side of the first connecting rod (338), a first moving groove (337) used for the first moving rod (336) to penetrate through is formed in the valve cover (2), a display sleeve is arranged on one side of the first moving rod (336), and a convex block is arranged on the lower side of one end of the first connecting rod (338).

5. The adjustable valve as claimed in claim 1, wherein the sub-clamping member (33) comprises a limiting block (330), a first semicircular shell (343) is fixedly arranged on the limiting block (330), a semicircular block (344) is coaxially and rotatably connected in the first semicircular shell (343), the semicircular block (344) is connected with the first semicircular shell (343) through a second rotating shaft (340), a sliding hole (345) is formed in the side wall of the first semicircular shell (343), the semicircular block (344) is connected with a second connecting rod (341) penetrating through the sliding hole (345), a second moving rod (347) is movably connected to the other end of the second connecting rod (341), a second moving groove (348) for penetrating through the second moving rod (347) is formed in the second connecting rod (2), the middle part of the second connecting rod (341) is connected with the limiting block (330) or the first semicircular shell (2) through a second elastic spring (342), the female clamping member (34) comprises a second connecting rod (341) penetrating through the sliding hole (341), the second semicircular shell (349) is arranged on one side of the second semicircular shell (33) and the second semicircular shell (349), when the triangular guide block (346) is in contact with the semicircular block (344), the triangular guide block (346) and the semicircular block (344) are in contact with each other to control the semicircular block (344) to rotate along with the movement of the sliding block (13) and the triangular guide block (346), so that the second connecting rod (341) is driven to rotate.

6. The adjustable valve as claimed in claim 4, wherein a prompt switch is disposed on an inner side wall of the sliding groove (14), the prompt switch is disposed on one side of the first moving groove (337), and when the first connecting rod (338) rotates, the prompt switch is touched to prompt the opening of the switch, and the clamping shaft (331) is clamped with the clamping block (332).

7. The adjustable valve according to claim 1, wherein the first butterfly plate (3) and the second butterfly plate (4) are semicircular, arc triangular sides (31) are arranged on arc side walls of the first butterfly plate (3) and the second butterfly plate (4), a valve seat (7) is arranged on the inner side wall of the flow pipe (6), an arc triangular groove (32) matched with the arc triangular side (31) is arranged on the valve seat (7), and arc protruding blocks are arranged on the arc triangular groove (32) or the arc triangular side (31), and arc grooves matched with the arc protruding blocks are arranged on the arc triangular side (31) or the arc triangular groove (32).

8. An adjustable valve according to claim 1, characterized in that a first arc-shaped protruding plate (29) is arranged on the outer side wall of the fixed sleeve (27), a first arc-shaped attaching plate (30) which is matched with the first arc-shaped protruding plate (29) is arranged on the first butterfly plate (3), when the end face of the first butterfly plate (3) and the end face of the second butterfly plate (4) are located on the same plane, the first arc-shaped protruding plate (29) is contacted with the first arc-shaped attaching plate (30), a second arc-shaped protruding plate is arranged on the outer side wall of the rotating sleeve (28), a second arc-shaped attaching plate which is matched with the second arc-shaped protruding plate is arranged on the second butterfly plate (4), and when the end face of the second butterfly plate (4) and the end face of the second butterfly plate (4) are located on the same plane, the second arc-shaped protruding plate is contacted with the second arc-shaped attaching plate.

9. An adjustable valve according to claim 1, characterized in that the valve rod sleeve (8) is provided with a first packing element (23) in an outer sleeve, the first packing element (23) is provided with a first packing pressing sleeve, the first packing pressing sleeve is provided with a first packing pressing plate (24) connected with the valve body (1), the valve rod (5) is provided with a second packing element (25) in an outer sleeve, the second packing element (25) is located at the upper part of the valve rod sleeve (8), the upper end of the second packing element (25) is provided with a second packing pressing sleeve, and the upper end of the second packing pressing sleeve is provided with a second packing pressing plate (26) connected with the valve rod sleeve (8).