CN216112205U

CN216112205U - Pneumatic butterfly valve with aperture is adjusted

Info

Publication number: CN216112205U
Application number: CN202121281100.8U
Authority: CN
Inventors: 许有才; 王强; 张晓鹏; 王育民
Original assignee: Amos Control System Xi'an Co ltd
Current assignee: Amos Control System Xi'an Co ltd
Priority date: 2021-06-08
Filing date: 2021-06-08
Publication date: 2022-03-22
Anticipated expiration: 2031-06-08

Abstract

The utility model belongs to the technical field of medical instruments, and particularly relates to a pneumatic butterfly valve with opening adjustment, which comprises a pneumatic actuator, a support, a valve seat, a butterfly plate and an opening adjustment mechanism, wherein the bottom end face of the starting actuator is fixedly connected with the support, the bottom end of the support is fixedly connected with the top end of the valve seat, the inner cavity of the valve seat is provided with the butterfly plate, the front side end face of the butterfly plate is fixedly connected with a boss, and the pneumatic actuator is fixedly connected with the top of the rear side end face of the valve seat through a valve rod; according to the butterfly plate, the limiting rod penetrates through the through hole to be in threaded connection with the corresponding positioning screw hole, the baffle plate on the valve rod is in contact with the limiting rod after rotating for an angle, and stops rotating, and through the matching of the plurality of positioning screw holes arranged on the fixing seat, the limiting rod and the baffle plate, a worker can conveniently adjust the opening of the butterfly plate, and the problem that the traditional butterfly plate can only be opened and closed in a large angle is solved.

Description

Pneumatic butterfly valve with aperture is adjusted

Technical Field

The utility model relates to the technical field of valves, in particular to a pneumatic butterfly valve with opening degree adjustment.

Background

The pneumatic butterfly valve consists of a pneumatic actuator and a butterfly valve.

The traditional pneumatic butterfly valve drives the valve rod to rotate through the pneumatic actuator so as to drive the butterfly plate to rotate in the valve seat to realize opening and closing, but in some application occasions where flow needs to be controlled, the butterfly plate can only be opened and closed at a large angle, and cannot be adjusted at a small angle; therefore, a pneumatic butterfly valve with opening degree adjustment is proposed to solve the above problems.

SUMMERY OF THE UTILITY MODEL

In order to make up for the defects of the prior art and solve the problem that the traditional butterfly plate can only be opened and closed at a large angle and cannot be adjusted, the utility model provides a pneumatic butterfly valve with opening adjustment.

The technical scheme adopted by the utility model for solving the technical problems is as follows: the utility model relates to a pneumatic butterfly valve with opening degree adjustment, which comprises a pneumatic actuator, a support, a valve seat, a butterfly plate and an opening degree adjustment mechanism, wherein the bottom end face of the starting actuator is fixedly connected with the support, the bottom end of the support is fixedly connected with the top end of the valve seat, the inner cavity of the valve seat is provided with the butterfly plate, the front end face of the butterfly plate is fixedly connected with a boss, the pneumatic actuator is fixedly connected with the top of the rear end face of the valve seat through a valve rod, the bottom of the rear end face of the valve seat is fixedly connected with a connecting shaft through a connecting piece, the bottom end of the connecting shaft is rotatably connected with the bottom end of the valve seat through a bearing, and the opening degree adjustment mechanism is arranged inside the support;

the opening adjusting mechanism comprises a fixed seat, a baffle and a limiting rod, the bottom end face of the inner cavity of the bracket is fixedly connected with the fixed seat, the limiting rod is arranged on the fixed seat, the valve rod in the inner cavity of the bracket is sleeved with the baffle, and the baffle is adapted to the valve rod; the opening of the butterfly plate can be adjusted through the opening adjusting mechanism, and the problem that the traditional butterfly plate can only be opened and closed at a large angle is solved.

Preferably, a round hole is formed in the center of the fixing seat, the valve rod penetrates through the round hole, a plurality of positioning screw holes are formed in the top end face of the fixing seat, the plurality of positioning screw holes are distributed in a central symmetry mode about the valve rod, a plurality of through holes are formed in the bottom end face of the support, the number of the through holes is the same as that of the positioning screw holes, the through holes correspond to the positioning screw holes one by one, and the limiting rod penetrates through the through holes and is in threaded connection with the positioning screw holes; through the cooperation of a plurality of location screw and gag lever post and the baffle that is equipped with on the fixing base, the staff of being convenient for adjusts the aperture of butterfly plate.

Preferably, the end face of one side of the baffle close to the limiting rod is fixedly connected with a buffer rubber pad, and the buffer rubber pad is matched with the limiting rod; the impact generated when the baffle is touched with the limiting rod is reduced, and the service lives of the baffle and the limiting rod are prolonged.

Preferably, a sealing ring is sleeved on the outer side of the boss, one end face of the sealing ring is attached to the butterfly plate, the other end face of the sealing ring is attached to a pressing ring, the pressing ring is fixedly connected with the boss through an installation mechanism, a sealing ring is fixedly connected to the inner side wall of the valve seat, the inner side wall of the sealing ring is inclined, and the outer side wall of the sealing ring is attached to the inner side wall of the sealing ring; through the laminating of sealing washer and sealing ring, guaranteed the leakproofness of butterfly plate with the disk seat, avoided the butterfly plate to lead to revealing because of sealed problem in the course of the work.

Preferably, installation mechanism includes stopper and bolt, a plurality of horizontal spout, a plurality of have been seted up to the front side terminal surface of boss horizontal spout is the form distribution of annular array, the arc spacing groove has been seted up to rear end one side of horizontal spout, the inside wall fixedly connected with a plurality of stopper of clamping ring, the quantity of stopper is the same with the quantity of horizontal spout, and the one-to-one, stopper and horizontal spout and the equal sliding connection of arc spacing groove, through the sliding connection of stopper and horizontal spout and arc spacing groove for the stopper is tentatively fixed, and then makes the clamping ring fixed.

Preferably, the end face of the front side of the boss is provided with a plurality of thread grooves, the thread grooves penetrate through the arc-shaped limiting groove, the thread grooves are far away from the transverse sliding groove, the limiting block is provided with a limiting hole, and the bolt penetrates through the limiting hole and is in threaded connection with the thread grooves; make the stopper further fix in the arc spout, and then make the clamping ring obtain fixing for the clamping ring is compressing tightly fixed mounting that can be quick on the boss when the sealing washer.

The utility model has the advantages that:

1. according to the butterfly plate, the limiting rod penetrates through the through hole to be in threaded connection with the corresponding positioning screw hole, so that the baffle plate on the valve rod is in contact with the limiting rod after rotating for an angle and stops rotating, and through the matching of the plurality of positioning screw holes arranged on the fixing seat, the limiting rod and the baffle plate, a worker can conveniently adjust the opening of the butterfly plate, and the problem that the traditional butterfly plate can only be opened and closed at a large angle is solved;

2. according to the utility model, the limiting block is connected with the transverse sliding groove in a sliding manner, so that the pressing ring can conveniently slide into the arc-shaped limiting groove along the transverse sliding groove, the limiting block can slide from one side of the arc-shaped limiting groove to the other side by rotating the pressing ring, the limiting hole in the limiting block corresponds to the threaded groove, and the pressing ring can be quickly and fixedly arranged on the boss by penetrating through the limiting hole and being in threaded connection with the threaded groove through the bolt while pressing the sealing ring, so that the working efficiency of workers for replacing the sealing ring is greatly improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

FIG. 1 is a schematic overall perspective view of a first embodiment;

FIG. 2 is a schematic view of the overall internal structure of the first embodiment;

FIG. 3 is an enlarged view of a portion of the structure of FIG. 2 according to the first embodiment;

FIG. 4 is a schematic top view of the stand according to the first embodiment;

FIG. 5 is a schematic side view of the valve seat according to the first embodiment;

FIG. 6 is an enlarged view of a portion of the structure shown at B in FIG. 5 according to the first embodiment;

FIG. 7 is a schematic view of a front view of a boss according to the first embodiment;

fig. 8 is a schematic structural diagram of a second embodiment of the present invention.

In the figure: 1. a pneumatic actuator; 2. a support; 3. a valve seat; 4. a butterfly plate; 5. a boss; 6. a valve stem; 7. a fixed seat; 8. positioning the screw hole; 9. a through hole; 10. a baffle plate; 11. a limiting rod; 12. a seal ring; 13. pressing a ring; 14. a transverse chute; 15. an arc-shaped limiting groove; 16. a limiting block; 17. a thread groove; 18. a bolt; 19. a spring; 20. an elastic block.

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 one

Referring to fig. 1-7, a pneumatic butterfly valve with opening adjustment includes a pneumatic actuator 1, a bracket 2, a valve seat 3, a butterfly plate 4 and an opening adjustment mechanism, the bottom end surface of the start actuator is fixedly connected with the bracket 2, the bottom end of the bracket 2 is fixedly connected with the top end of the valve seat 3, the inner cavity of the valve seat 3 is provided with the butterfly plate 4, the front end surface of the butterfly plate 4 is fixedly connected with a boss 5, the pneumatic actuator 1 is fixedly connected with the top of the rear end surface of the valve seat 3 through a valve rod 6, the bottom of the rear end surface of the valve seat 3 is fixedly connected with a connecting shaft through a connecting piece, the bottom end of the connecting shaft is rotatably connected with the bottom end of the valve seat 3 through a bearing, and the inside of the bracket 2 is provided with the opening adjustment mechanism;

the opening degree adjusting mechanism comprises a fixed seat 7, a baffle plate 10 and a limiting rod 11, the fixed seat 7 is fixedly connected with the bottom end face of the inner cavity of the support 2, the limiting rod 11 is arranged on the fixed seat 7, the baffle plate 10 is sleeved on the valve rod 6 in the inner cavity of the support 2, and the baffle plate 10 is matched with the valve rod 6; during operation, drive valve rod 6 through pneumatic actuator 1 and rotate for valve rod 6 drives butterfly plate 4 at 3 internal rotations of disk seat, and baffle 10 on the valve rod 6 rotates along with it simultaneously, when needs are adjusted the aperture of butterfly plate 4, touches mutually with gag lever post 11 and the stall rotation through baffle 10 on the valve rod 6 after rotating an angle, and then makes butterfly plate 4 stall, has realized the regulation to butterfly plate 4 aperture.

A round hole is formed in the center of the fixing seat 7, the valve rod 6 penetrates through the round hole, a plurality of positioning screw holes 8 are formed in the top end face of the fixing seat 7, the plurality of positioning screw holes 8 are distributed in a central symmetry mode about the valve rod 6, a plurality of through holes 9 are formed in the bottom end face of the support 2, the number of the through holes 9 is the same as that of the positioning screw holes 8, the through holes 9 correspond to the positioning screw holes 8 one by one, and the limiting rods 11 penetrate through the through holes 9 and are in threaded connection with the positioning screw holes 8; during operation, the staff is through running through-

hole

9 and 8 threaded connection of corresponding location screw with gag lever post 11 for baffle 10 on the valve rod 6 touches mutually with gag lever post 11 and stops rotatoryly after rotating an angle, through the cooperation of a plurality of location screw 8 and gag lever post 11 and baffle 10 that are equipped with on the fixing base 7, the staff of being convenient for adjusts the aperture of butterfly plate 4, has solved traditional butterfly plate 4 and can only carry out the wide-angle and open and closed problem.

The end face of one side of the baffle 10 close to the limiting rod 11 is fixedly connected with a buffer rubber pad, and the buffer rubber pad is matched with the limiting rod 11; during operation, reduce the impact that produces when baffle 10 and gag lever post 11 touch, protect baffle 10 and gag lever post 11, prolonged baffle 10 and gag lever post 11's life.

The outer side of the boss 5 is sleeved with a sealing ring 12, one side end face of the sealing ring 12 is attached to the butterfly plate 4, the other side end face of the sealing ring 12 is attached to a pressing ring 13, the pressing ring 13 is fixedly connected with the boss 5 through an installation mechanism, a sealing ring is fixedly connected to the inner side wall of the valve seat 3, the inner side wall of the sealing ring is inclined, and the outer side wall of the sealing ring 12 is attached to the inner side wall of the sealing ring; during operation, the sealing ring 12 is pressed through the pressing ring 13, so that the sealing ring 12 is attached to the sealing ring, the sealing performance of the butterfly plate 4 and the valve seat 3 is guaranteed, and the butterfly plate 4 is prevented from being leaked due to the sealing problem in the working process.

The mounting mechanism comprises limiting blocks 16 and bolts 18, a plurality of transverse sliding grooves 14 are formed in the end face of the front side of the boss 5, the transverse sliding grooves 14 are distributed in an annular array mode, arc-shaped limiting grooves 15 are formed in one side of the rear end of each transverse sliding groove 14, a plurality of limiting blocks 16 are fixedly connected to the inner side wall of the compression ring 13, the number of the limiting blocks 16 is the same as that of the transverse sliding grooves 14 and corresponds to one another, and the limiting blocks 16 are connected with the transverse sliding grooves 14 and the arc-shaped limiting grooves 15 in a sliding mode; during operation, after sealing washer 12 uses wearing and tearing for a long time, sheathes boss 5 with sealing washer 12 in, through stopper 16 and horizontal spout 14 sliding connection, be convenient for slide clamping ring 13 in arc spacing groove 15 along horizontal spout 14, through rotating clamping ring 13 for stopper 16 slides to the opposite side from arc spacing groove 15 one side, makes stopper 16 tentatively fixed, and then makes clamping ring 13 fixed.

The front side end face of the boss 5 is provided with a plurality of thread grooves 17, the thread grooves 17 penetrate through the arc-shaped limiting groove 15, the thread grooves 17 are far away from the transverse sliding groove 14, the limiting block 16 is provided with limiting holes, and the bolts 18 penetrate through the limiting holes and are in threaded connection with the thread grooves 17; during operation, through running through the spacing hole on the stopper 16 with

bolt

18 and 17 threaded connection of thread groove for stopper 16 further fixes in the arc spout, and then makes clamping ring 13 obtain fixing, makes clamping ring 13 fixed mounting that can be quick when compressing tightly sealing washer 12 on boss 5, has greatly improved the work efficiency that the staff changed sealing washer 12.

Example two

Referring to fig. 8, in a first comparative example, as another embodiment of the present invention, a groove is formed on a rear end surface of the limiting block 16, a spring 19 is fixedly connected to an inner wall of the groove, and another end of the spring 19 is fixedly connected to an elastic block 20; during operation, when rotating clamping ring 13 and driving stopper 16 and slide into arc spacing groove 15, spring 19 is in compression state, acts on elastic block 20 through spring 19's elastic potential energy for elastic block 20 counteraction and stopper 16, and then make stopper 16 can be fixed in arc spacing groove 15, compress tightly sealing washer 12 simultaneously, avoid not hard up of sealing washer 12, thereby the staff of being convenient for installs the change of sealing washer 12.

The working principle is that the valve rod 6 is driven to rotate by the pneumatic actuator 1, so that the valve rod 6 drives the butterfly plate 4 to rotate in the valve seat 3, meanwhile, the baffle plate 10 on the valve rod 6 rotates, when the opening degree of the butterfly plate 4 needs to be adjusted, a worker can ensure that the baffle plate 10 on the valve rod 6 contacts with the limiting rod 11 to stop rotating by penetrating the limiting rod 11 through the through hole 9 and being in threaded connection with the corresponding positioning screw hole 8, and the problem that the traditional butterfly plate 4 can only be opened and closed at a large angle is solved by matching a plurality of positioning screw holes 8 arranged on the fixing seat 7 with the limiting rod 11 and the baffle plate 10, so that the worker can conveniently adjust the opening degree of the butterfly plate 4, when the sealing ring 12 is worn after being used for a long time, the sealing ring 12 is sleeved on the boss 5, and the clamping ring 13 is conveniently slid into the arc-shaped limiting groove 15 along the transverse sliding groove 14 through the sliding connection of the limiting block 16 and the transverse sliding groove 14, through rotating clamping ring 13 for stopper 16 slides to the opposite side from arc spacing groove 15 one side, and the spacing hole on the stopper 16 is corresponding with thread groove 17 this moment, runs through spacing hole and thread groove 17 threaded connection through bolt 18, makes clamping ring 13 fixed mounting that can be quick when compressing tightly sealing washer 12 on boss 5, has greatly improved the work efficiency that the staff changed sealing washer 12.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed.

Claims

1. The utility model provides a pneumatic butterfly valve with aperture is adjusted which characterized in that: the opening adjusting mechanism is arranged in the support (2), the bottom end face of the starting actuator is fixedly connected with the support (2), the bottom end of the support (2) is fixedly connected with the top end of the valve seat (3), the butterfly plate (4) is arranged in an inner cavity of the valve seat (3), a boss (5) is fixedly connected with the front end face of the butterfly plate (4), the pneumatic actuator (1) is fixedly connected with the top of the rear end face of the valve seat (3) through a valve rod (6), the bottom of the rear end face of the valve seat (3) is fixedly connected with a connecting shaft through a connecting piece, the bottom end of the connecting shaft is rotatably connected with the bottom end of the valve seat (3) through a bearing, and the opening adjusting mechanism is arranged in the support (2);

the opening adjusting mechanism comprises a fixing seat (7), a baffle (10) and a limiting rod (11), the bottom end face of the inner cavity of the support (2) is fixedly connected with the fixing seat (7), the limiting rod (11) is arranged on the fixing seat (7), the inner cavity of the support (2) is sleeved with the baffle (10) on the valve rod (6), and the baffle (10) is matched with the valve rod (6).

2. A pneumatic butterfly valve with opening adjustment according to claim 1, characterized in that: the round hole has been seted up at the center of fixing base (7), valve rod (6) run through the round hole, a plurality of location screw (8), a plurality of have been seted up to the top terminal surface of fixing base (7) location screw (8) are central symmetric distribution about valve rod (6), a plurality of through-hole (9) have been seted up to the bottom terminal surface of support (2), through-hole (9) are the same with the quantity of location screw (8), and the one-to-one, through-hole (9) and location screw (8) threaded connection are run through in gag lever post (11).

3. A pneumatic butterfly valve with opening adjustment according to claim 2, characterized in that: the baffle (10) is close to one side end face of gag lever post (11) and is fixedly connected with cushion rubber pad, cushion rubber pad and gag lever post (11) are adapted.

4. A pneumatic butterfly valve with opening adjustment according to claim 3, characterized in that: the outside cover of boss (5) has sealing washer (12), a side end face and butterfly plate (4) of sealing washer (12) laminate mutually, the opposite side terminal surface and clamping ring (13) of sealing washer (12) laminate mutually, clamping ring (13) are through installation mechanism and boss (5) fixed connection, fixedly connected with sealing ring on the inside wall of disk seat (3), the inside wall of sealing ring is the slope form, the lateral wall of sealing washer (12) laminates with the inside wall of sealing ring mutually.

5. A pneumatic butterfly valve with opening adjustment according to claim 4, characterized in that: installation mechanism includes stopper (16) and bolt (18), a plurality of horizontal spout (14), a plurality of have been seted up to the front side end face of boss (5) horizontal spout (14) are the form distribution of annular array, arc spacing groove (15) have been seted up to rear end one side of horizontal spout (14), the inside wall fixedly connected with a plurality of stopper (16) of clamping ring (13), the quantity of stopper (16) is the same with the quantity of horizontal spout (14), and the one-to-one, stopper (16) and horizontal spout (14) and the equal sliding connection of arc spacing groove (15).

6. A pneumatic butterfly valve with opening adjustment according to claim 5, characterized in that: the front side end face of the boss (5) is provided with a plurality of thread grooves (17), the thread grooves (17) penetrate through arc-shaped limiting grooves (15), the thread grooves (17) are far away from the transverse sliding grooves (14), limiting holes are formed in the limiting blocks (16), and the bolts (18) penetrate through the limiting holes and are in threaded connection with the thread grooves (17).