CN215410232U

CN215410232U - Single eccentric butterfly valve

Info

Publication number: CN215410232U
Application number: CN202121338103.0U
Authority: CN
Inventors: 佟泽
Original assignee: Tianjin Tanggu Tianshun Valve Industrial Co ltd
Current assignee: Tianjin Tanggu Tianshun Valve Industrial Co ltd
Priority date: 2021-06-16
Filing date: 2021-06-16
Publication date: 2022-01-04
Anticipated expiration: 2031-06-16

Abstract

The utility model discloses a single-eccentric butterfly valve, which relates to the technical field of butterfly valves and particularly relates to a single-eccentric butterfly valve. This application is through having the rotatory rotation of fixed cover at the rotatory pivoted internally mounted of valve body, the rotatory rotation of preceding waterproof cover, the rotatory rotation of back waterproof cover, the rotatory rotation of spring, the rotatory rotation of disk seat, make the laminating of the rotatory pivoted front side of butterfly plate and the rotatory pivoted rear side of disk seat, can increase the rotatory rotation of disk seat and the rotatory pivoted seal of butterfly plate through the rotatory pivoted effect of spring, prevent after long-time use, lead to the rotatory rotation of butterfly plate and the rotatory pivoted seal of disk seat not good because of wearing and tearing, can effectively increase the life of device, the practicality of device is improved.

Description

Single eccentric butterfly valve

Technical Field

The application relates to the technical field of butterfly valves, in particular to a single eccentric butterfly valve.

Background

A butterfly valve, also called a flap valve, is a regulating valve with simple structure, can be used for the on-off control of low-pressure pipeline media, and refers to a valve which has a closing member (a valve clack or a butterfly plate) which is a disk and rotates around a valve shaft to open and close, can be used for controlling the flow of various types of fluids such as air, water, steam, various corrosive media, slurry, oil products, liquid metal, radioactive media and the like, the butterfly valve mainly plays the roles of cutting and throttling on the pipeline, the butterfly valve opening and closing piece is a disc-shaped butterfly plate and rotates around the axis of the butterfly plate in the valve body, thereby achieving the purpose of opening and closing or adjusting, the eccentric butterfly valve is divided into a single eccentric butterfly valve, a double eccentric butterfly valve, a triple eccentric butterfly valve and a variable eccentric butterfly valve, relative with the concentric butterfly valve, the disk center and the body center are deviated simultaneously to the valve rod axle center, and the vice butterfly valve that is the oblique vertebra of sealing is called eccentric butterfly valve, single eccentric butterfly valve: in order to solve the extrusion problem of the butterfly plate and the valve seat of the concentric butterfly valve, a single eccentric butterfly valve is produced, and the structure is characterized in that the axle center of the valve rod deviates from the center of the butterfly plate, so that the upper end and the lower end of the butterfly plate are not turned into the rotation axle center any more, the dispersion is realized, the excessive extrusion between the upper end and the lower end of the butterfly plate and the valve seat is lightened, the butterfly valve and the upper valve shaft and the lower valve shaft adopt the link mode of a special-shaped hole and a special-shaped shaft, the function of pin-free linking of the butterfly plate which floats up, down, left and right is realized in the opening and closing process of the butterfly plate, the interference area between the butterfly plate and the valve seat is reduced, thereby greatly reducing the torque, realizing the manufacturing process of single eccentricity and the use function of variable eccentricity by the floating structure of the butterfly plate, the inner cavity of the valve body is provided with a butterfly plate over-position prevention stop block to ensure that the butterfly plate is not in place when being closed, and the upper and lower valve shaft holes of the inner cavity of the valve body and the upper and lower valve shaft holes of the butterfly plate are protected by a bushing to prevent large particles in a medium from entering the valve shaft holes.

In the use of current single eccentric butterfly valve, can have some problems usually, and the leakproofness of single eccentric butterfly valve can reduce after long-term the use, easily causes the not tight condition of sealing of butterfly valve, causes the condition of leaking, and long-time after using, the steadiness of single eccentric butterfly valve is relatively poor, for this reason, we provide a single eccentric butterfly valve.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present application provides a single eccentric butterfly valve to improve the above problems.

In order to achieve the purpose, the utility model is realized by the following technical scheme: a single eccentric butterfly valve comprises a valve body rotating body, wherein a valve rod rotating body is movably sleeved inside the valve body rotating body, a butterfly plate rotating body is fixedly arranged on the front side of the valve rod rotating body, a fixed sleeve rotating body is fixedly sleeved on the inner side of the valve body rotating body, a front waterproof sleeve rotating body is fixedly arranged on the rear side of the fixed sleeve rotating body, a spring is fixedly connected with the rear side of the fixed sleeve rotating body, a valve seat rotating body is fixedly arranged on the rear side of the spring rotating body, a rear waterproof sleeve rotating body is fixedly arranged on the front side of the valve seat rotating body, four fixed blocks are fixedly arranged on the inner side of the valve body rotating body, a stud is rotatably sleeved on the inner side of the fixed block, a bearing is rotatably sleeved on the inner cavity of the low end of the stud, the rotary valve is characterized in that the bottom movable mounting support plate for rotary rotation of the stud is rotatably rotated, the outer side fixed mounting gear for rotary rotation of the stud is rotatably rotated, the outer fixed sleeve for rotary rotation of the valve body is rotatably sleeved with the support sleeve, the outer movable sleeve for rotary rotation of the support sleeve is rotatably sleeved with the rotation sleeve, and the inner side fixed mounting sliding sleeve for rotary rotation of the rotation sleeve is rotatably mounted on the rotation sleeve.

Optionally, the rear waterproof jacket is rotationally arranged outside the front waterproof jacket, the spring is rotationally arranged outside the front waterproof jacket and rotationally arranged outside the rear waterproof jacket, and the outer side of the rear end of the front waterproof jacket is attached to the inner side of the front end of the rear waterproof jacket.

Optionally, an arc-shaped chamfer is arranged on the front side of the rotary rotation of the butterfly plate, an arc-shaped groove matched with the rotary rotation of the butterfly plate is arranged on the rear side of the rotary rotation of the valve seat, and the front side of the rotary rotation of the butterfly plate is attached to the rear side of the rotary rotation of the valve seat.

Optionally, a rectangular groove matched with the supporting plate and rotating is formed in the fixed block, and the front side of the supporting plate rotating and rotating is attached to the rear side of the butterfly plate rotating and rotating.

Optionally, there is the rotatory pivoted spout of adaptation sliding sleeve in the rotatory pivoted outside of support cover, the sliding sleeve is rotatory to be rotated and to be located and supports the rotatory pivoted inside of cover, it is the same with the rotatory pivoted width value of support cover to rotate the rotatory pivoted width value of cover.

Optionally, the rear side of the rotary rotating sleeve is provided with a tooth groove matched with the rotary rotating gear, and the rear side of the rotary rotating sleeve is attached to the front side of the rotary rotating gear.

The application provides a pair of single off-center butterfly valve possesses following beneficial effect:

1. this application is through having the rotatory rotation of fixed cover at the rotatory pivoted internally mounted of valve body, the rotatory rotation of preceding waterproof cover, the rotatory rotation of back waterproof cover, the rotatory rotation of spring, the rotatory rotation of disk seat, install the rotatory rotation of valve rod and the rotatory rotation of butterfly plate simultaneously, make the rotatory pivoted front side of butterfly plate and the rotatory pivoted rear side laminating of disk seat, can increase the rotatory pivoted of disk seat and the rotatory pivoted seal of butterfly plate through the rotatory pivoted effect of spring, prevent after long-time use, it is not good to lead to the rotatory pivoted seal of butterfly plate and disk seat because of wearing and tearing, can effectively increase the life of device, the practicality of improvement device.

2. This application is through at the rotatory pivoted outer wall installation fixed block of valve body rotatory rotation, simultaneously in the rotatory pivoted inside of fixed block through the rotatory rotation of screw thread installation double-screw bolt, make the rotatory pivoted outside installation gear of double-screw bolt rotatory rotation, the inboard is rotated the joint support board rotation through the bearing rotation, utilize simultaneously to support the cover rotatory rotation, it is rotatory to rotate the cover, the rotatory pivoted setting of sliding sleeve is convenient for rotate the rotatory rotation of butterfly plate through the backup pad and fix, prevent the rotatory pivoted activity of butterfly plate.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 shows a schematic structural diagram of the present application;

FIG. 2 shows a schematic view of the slicing structure of the present application;

FIG. 3 illustrates a schematic view of a waterproof jacket construction after the present application;

FIG. 4 is a schematic view of the present application showing a rotating sleeve configuration;

fig. 5 shows a schematic diagram of the structure of the support plate of the present application.

In the figure: 1. a valve body; 2. a valve stem; 3. a butterfly plate; 4. fixing a sleeve; 5. a front waterproof jacket; 6. a rear waterproof jacket; 7. a spring; 8. a valve seat; 9. a fixed block; 10. a stud; 11. a bearing; 12. a support plate; 13. a gear; 14. a support sleeve; 15. rotating the sleeve; 16. and (4) a sliding sleeve.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, 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 application.

Referring to fig. 1 to 5, the present invention provides a technical solution: a single eccentric butterfly valve comprises a valve body 1, a valve rod 2 is movably sleeved in the valve body 1, a butterfly plate 3 is fixedly installed on the front side of the valve rod 2, a fixed sleeve 4 is fixedly sleeved on the inner side of the valve body 1, a front waterproof sleeve 5 is fixedly installed on the rear side of the fixed sleeve 4, a rear waterproof sleeve 6 is positioned on the outer side of the front waterproof sleeve 5, a spring 7 is positioned on the outer side of the front waterproof sleeve 5 and the outer side of the rear waterproof sleeve 6, the outer side of the rear end of the front waterproof sleeve 5 is attached to the inner side of the front end of the rear waterproof sleeve 6, the fixed sleeve 4 is fixedly sleeved on the inner side of the valve body 1 through the arrangement of the front waterproof sleeve 5, the rear waterproof sleeve 6 and the spring 7, a valve seat 8 can move backwards under the pushing of the spring 7, the sealing performance between the valve seat 8 and the butterfly plate 3 can be increased conveniently, the use of the butterfly valve is convenient, the practicability of the device is increased, the spring 7 is fixedly connected with the spring 7 on the rear side of the fixed sleeve 4, the valve seat 8 is fixedly installed on the rear side of the spring 7, an arc-shaped chamfer is arranged on the front side of the butterfly plate 3, an arc-shaped groove matched with the butterfly plate 3 is arranged on the rear side of the valve seat 8, the front side of the butterfly plate 3 is jointed with the rear side of the valve seat 8, the valve rod 2 is rotated reversely, the butterfly plate 3 is driven by the valve rod 2 to rotate, the front side of the butterfly plate 3 is jointed with the rear side of the valve seat 8, meanwhile, the valve seat 8 can be pushed backwards under the action of a spring 7, no gap exists between the butterfly plate 3 and the valve seat 8, the tightness of the butterfly plate 3 and the valve seat 8 is convenient to increase, the poor sealing effect caused by abrasion after long-time use of the butterfly plate 3 and the valve seat 8 is prevented, meanwhile, the movement of the butterfly plate 3 and the valve seat 8 is convenient due to the arrangement of the arc-shaped chamfer, the friction is reduced, a rear waterproof sleeve 6 is fixedly arranged on the front side of the valve seat 8, four fixing blocks 9 are fixedly arranged on the inner side of the valve body 1, a rectangular groove of a supporting plate 12 is arranged in the fixing blocks 9 in a matched manner, the front side of the supporting plate 12 is jointed with the rear side of the butterfly plate 3, the support plate 12 mainly plays a role of fixing the butterfly plate 3, the butterfly plate 3 is prevented from being pushed backwards under the action of water flow, the valve seat 8 and the spring 7, the stability of the butterfly plate 3 is convenient to increase through the arrangement of the valve seat 8, the spring 7 and the support plate 12, the butterfly plate 3 is prevented from moving inside the valve body 1, the inner side of the fixed block 9 is movably sleeved with the stud 10, the inner cavity of the lower end of the stud 10 is movably sleeved with the bearing 11, the bottom of the stud 10 is movably provided with the support plate 12, the outer side of the stud 10 is fixedly provided with the gear 13, the outer part of the valve body 1 is fixedly sleeved with the support sleeve 14, the outer side of the support sleeve 14 is provided with the chute matched with the sliding sleeve 16, the sliding sleeve 16 is positioned inside the support sleeve 14, the width value of the rotating sleeve 15 is the same as that of the support sleeve 14, the sliding sleeve 16 is convenient to pass through the sliding sleeve 16, so that the rotating sleeve 15 rotates outside the support sleeve 14, and the practicability of the device can be effectively improved, the use of the device is convenient, the extension or retraction of the support plate 12 is convenient to control, the rotation of the gear 13 is driven by the rotation of the rotating sleeve 15 to drive the stud 10 to rotate, the stud 10 can push the support plate 12 to the inner side of the valve body 1, the practicability of the device is improved, the use of the device is convenient, the rotating sleeve 15 is movably sleeved outside the support sleeve 14, the tooth socket matched with the gear 13 is arranged at the rear side of the rotating sleeve 15, the rear side of the rotating sleeve 15 is attached to the front side of the gear 13, the rotating sleeve 15 is rotated reversely, the rotating sleeve 15 drives the gear 13 to rotate, the stud 10 is driven to rotate inside the fixed block 9 by the rotation of the gear 13, the support plate 12 is pushed to the inner side of the valve body 1 by the rotation of the stud 10, the front side of the support plate 12 is attached to the rear wall of the butterfly plate 3, the butterfly plate 3 is prevented from moving backwards under the action of water flow, and the setting of the bearing 11 prevents the stud 10 from driving the support plate 12 to rotate, the support plate 12 is rectangular, so that the contact area between the support plate and the butterfly plate 3 is increased, the stability of the butterfly plate 3 is increased, and the sliding sleeve 16 is fixedly installed on the inner side of the rotating sleeve 15.

In summary, in the single eccentric butterfly valve provided by the present application, when in use, by rotating the rotating sleeve 15, the rotating sleeve 15 drives the gear 13 to rotate, the gear 13 drives the stud 10 to rotate inside the fixing block 9, the stud 10 drives the support plate 12 to move inside the fixing block 9, by rotating the valve rod 2, the valve rod 2 drives the butterfly plate 3 to rotate, the butterfly plate 3 rotates to open the front and back of the valve body 1, the valve body 1 is in an open state, and the rotation of the butterfly plate 3 pushes the valve seat 8 forward, so that the spring 7 is in a compressed state, and then after use, by rotating the valve rod 2 in reverse direction, the valve rod 2 drives the butterfly plate 3 to rotate, so that the front side of the butterfly plate 3 is attached to the rear side of the valve seat 8, and the valve seat 8 is pushed backward under the action of the spring 7, so that no gap exists between the butterfly plate 3 and the valve seat 8, and by rotating the rotating sleeve 15 in reverse direction, the rotating sleeve 15 is made to drive the gear 13 to rotate, the stud 10 can be driven to rotate inside the fixing block 9 through rotation of the gear 13, the supporting plate 12 can be pushed out towards the inner side of the valve body 1 through rotation of the stud 10, the front side of the supporting plate 12 is made to be attached to the rear wall of the butterfly plate 3, and the butterfly plate 3 is prevented from moving backwards under the action of water flow.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the same; although the present application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not necessarily depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.

Claims

1. The utility model provides a single off-centre butterfly valve, includes valve body (1), its characterized in that: the inner movable sleeve of the valve body (1) is provided with a valve rod (2), the front side of the valve rod (2) is fixedly provided with a butterfly plate (3), the inner side of the valve body (1) is fixedly provided with a fixed sleeve (4), the rear side of the fixed sleeve (4) is fixedly provided with a front waterproof sleeve (5), the rear side of the fixed sleeve (4) is fixedly connected with a spring (7), the rear side of the spring (7) is fixedly provided with a valve seat (8), the front side of the valve seat (8) is fixedly provided with a rear waterproof sleeve (6), the inner side of the valve body (1) is fixedly provided with four fixed blocks (9), the inner side of each fixed block (9) is movably sleeved with a stud (10), the inner cavity of the lower end of the stud (10) is movably sleeved with a bearing (11), the bottom of the stud (10) is movably installed with a supporting plate (12), and the outer side of the stud (10) is fixedly installed with a gear (13), the outer fixed cover of valve body (1) is equipped with and supports cover (14), the outside activity suit of supporting cover (14) rotates cover (15), the inboard fixed mounting sliding sleeve (16) of rotating cover (15).

2. A single-offset butterfly valve in accordance with claim 1, wherein: the waterproof jacket (6) in back is located the outside of preceding waterproof jacket (5), spring (7) are located the outside of preceding waterproof jacket (5) and back waterproof jacket (6), the outside of the rear end of preceding waterproof jacket (5) and the inboard laminating of back waterproof jacket (6) front end.

3. A single-offset butterfly valve in accordance with claim 1, wherein: the front side of butterfly plate (3) is opened and is equipped with the arc chamfer, the rear side of disk seat (8) is opened and is established the arc wall of adaptation butterfly plate (3), the front side of butterfly plate (3) and the rear side laminating of disk seat (8).

4. A single-offset butterfly valve in accordance with claim 1, wherein: the inside of fixed block (9) is seted up the rectangular channel of adaptation backup pad (12), the front side of backup pad (12) is laminated with the rear side of butterfly plate (3).

5. A single-offset butterfly valve in accordance with claim 1, wherein: the outside of supporting sleeve (14) has the spout of adaptation sliding sleeve (16), sliding sleeve (16) are located the inside of supporting sleeve (14), the width value of rotating sleeve (15) is the same with the width value of supporting sleeve (14).

6. A single-offset butterfly valve in accordance with claim 1, wherein: the rear side of the rotating sleeve (15) is provided with a tooth groove matched with the gear (13), and the rear side of the rotating sleeve (15) is attached to the front side of the gear (13).