CN219139849U - Butterfly valve with good sealing effect - Google Patents

Abstract

The utility model discloses a butterfly valve with good sealing effect, which belongs to the technical field of butterfly valves and comprises a valve body and a valve rod, wherein an upper shaft sleeve is sleeved on the upper surface of the valve rod, a control assembly matched with the valve rod for use is arranged at the top of the upper shaft sleeve, the bottom of the upper shaft sleeve is fixedly connected with the valve body, the valve rod penetrates through the valve body and is fixedly connected with a butterfly plate, a fixed shaft seat is fixedly connected with an inner cavity of the valve body, and the sealing assembly can be clamped and fixed with the sealing groove and the fixed shaft seat by arranging the fixed shaft seat, the butterfly plate, the sealing groove and the sealing assembly in cooperation, so that the sealing effect of the butterfly plate is controlled, the inside of the valve body can be thoroughly sealed, the situation that the butterfly valve leaks is avoided, the sealing ring is clamped with the inside of the sealing groove by arranging the sealing ring and the movable shaft seat, and the sealing ring is fixed by the fixed shaft seat, so that the butterfly plate can be completely sealed.

Description

Butterfly valve with good sealing effect

Technical Field

The utility model relates to the technical field of butterfly valves, in particular to a butterfly valve with a good sealing effect.

Background

The butterfly valve is also called as a flap valve, is a regulating valve with simple structure, mainly plays roles of cutting off and throttling on a pipeline, 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, and has a very wide application range.

Along with the continuous development of economy, the valve industry is an important link in the social and economic development as equipment manufacturing industry, the use of the tightness of a valve is very important according to the factors, however, the sealing effect of the existing butterfly valve in closing and throttling is not very ideal, the butterfly plate cannot be completely closed in a closed state easily, the butterfly plate and a fixed shaft seat can be easily misplaced partially under the impact of water flow, and the butterfly plate and the fixed shaft seat cannot be combined together, so that the tightness of the butterfly valve is reduced, the sealing effect of the butterfly valve is poor, and the sealing effect required by people cannot be achieved.

Disclosure of Invention

The butterfly valve with good sealing effect provided by the utility model has the advantages that the sealing effect of the butterfly valve is enhanced, so that the sealing effect of the butterfly valve can be achieved by people, the butterfly plate is not easy to be misplaced locally under the impact of water flow and the pressure of air pressure, the good sealing effect of the butterfly valve is improved, and the problems in the background art are solved.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a butterfly valve that sealed effectual, includes valve body and valve rod, the upper surface of valve rod has cup jointed the axle sleeve, go up the top of axle sleeve and install the control assembly who uses with the valve rod cooperation, the bottom and the valve body fixed connection of axle sleeve go up, the valve rod runs through the valve body and fixedly connected with butterfly plate, the inner chamber fixedly connected with fixed axle bed of valve body, the butterfly plate is located the inner chamber of fixed axle bed, the right side of butterfly plate is provided with seal assembly, seal groove has all been seted up to the front and the back of fixed axle bed inner wall, seal assembly's lateral wall and seal groove's inner chamber joint.

Preferably, the sealing assembly comprises a sealing ring, the sealing ring is arranged on the right side of the butterfly plate, the right side of the sealing ring is provided with a movable shaft seat, and the periphery of the outer side of the movable shaft seat is bolted with the sealing ring and the surface of the butterfly plate through fasteners.

Preferably, the fastener comprises a fastening bolt, a plurality of fastening bolts are arranged around the movable shaft seat, threaded holes are formed in the periphery of the right side of the butterfly plate, through holes are formed in the periphery of the surface of the sealing ring, and the other ends of the fastening bolts penetrate through the through holes and are bolted with the inner cavities of the threaded holes.

Preferably, the front and the back of the valve body are embedded with thread sleeves, the inner cavity of the thread sleeve is in threaded connection with a screw rod, positioning blocks are bolted to symmetrical positions on the left surface of the butterfly plate, positioning holes matched with the screw rod are formed in the surfaces of the positioning blocks, and sealing sleeves are arranged at the outer side ends of the thread sleeves, located on the valve body.

Preferably, a lower shaft sleeve is arranged at the bottom of the valve body, and the lower end of the valve rod is rotationally connected with an inner cavity of the lower shaft sleeve.

Preferably, the two seal grooves are arranged in an oblique symmetry manner, and the inner sides of the seal grooves are arc-shaped.

Preferably, the bottom of the lower shaft sleeve is fixedly connected with a base, and mounting holes are formed in the periphery of the bottom of the base.

Compared with the prior art, the utility model has the beneficial effects that:

1. the butterfly valve with good sealing effect provided by the utility model has the advantages that the sealing assembly is clamped and fixed with the sealing groove and the fixed shaft seat by arranging the fixed shaft seat, the butterfly plate, the sealing groove and the sealing assembly, so that the sealing effect of the butterfly plate is controlled, the inside of the valve body can be thoroughly sealed, and the leakage of the butterfly valve is avoided.

2. The butterfly valve with good sealing effect provided by the utility model has the advantages that the sealing ring is clamped with the inside of the sealing groove by arranging the sealing ring and the movable shaft seat in a matched manner, and the sealing ring is fixed by the fixed shaft seat, so that the butterfly plate can be completely sealed.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a cross-sectional view of the valve body and butterfly valve of the present utility model;

FIG. 3 is an exploded perspective view of the butterfly valve, seal ring and movable shaft seat structure of the present utility model;

fig. 4 is an enlarged view of the utility model at a in fig. 2.

Reference numerals in the drawings: 1. a valve body; 2. a valve stem; 3. an upper shaft sleeve; 4. a butterfly plate; 5. fixing the shaft seat; 6. a seal assembly; 61. a seal ring; 62. a movable shaft seat; 63. a fastener; 631. a fastening bolt; 632. a threaded hole; 633. a through hole; 7. sealing grooves; 8. a thread sleeve; 9. a screw; 10. a positioning block; 11. positioning holes; 12. a lower shaft sleeve; 13. a base; 14. and a control assembly.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The utility model provides a butterfly valve with good sealing effect as shown in figures 1-4, which comprises a valve body 1 and a valve rod 2, wherein an upper shaft sleeve 3 is sleeved on the upper surface of the valve rod 2, a control component 14 matched with the valve rod 2 is arranged at the top of the upper shaft sleeve 3, the bottom of the upper shaft sleeve 3 is fixedly connected with the valve body 1, the valve rod 2 penetrates through the valve body 1 and is fixedly connected with a butterfly plate 4, the inner cavity of the valve body 1 is fixedly connected with a fixed shaft seat 5, the butterfly plate 4 is positioned in the inner cavity of the fixed shaft seat 5, a sealing component 6 is arranged on the right side of the butterfly plate 4, sealing grooves 7 are formed in the front surface and the back surface of the inner wall of the fixed shaft seat 5, the outer side wall of the sealing component 6 is clamped with the inner cavity of the sealing groove 7, and the sealing component 6 are matched with the fixed shaft seat 5, so that the sealing component 6 is clamped and fixed with the sealing groove 7 and the fixed shaft seat 5, and the sealing effect of the butterfly plate 4 is controlled, and the inner part of the valve body 1 can be thoroughly sealed, and leakage is avoided.

The seal assembly 6 comprises a seal ring 61, the seal ring 61 is arranged on the right side of the butterfly plate 4, a movable shaft seat 62 is arranged on the right side of the seal ring 61, the periphery of the outer side of the movable shaft seat 62 is bolted with the seal ring 61 and the surface of the butterfly plate 4 through fasteners 63, the seal ring 61 can be clamped with the inside of the seal groove 7 through the cooperation of the seal ring 61 and the movable shaft seat 62, and meanwhile, the seal ring 61 is fixed through a fixed shaft seat 5, so that the butterfly plate 4 can be completely sealed.

The fastener 63 includes fastening bolt 631, and a plurality of fastening bolts 631 are installed around movable shaft seat 62, and screw hole 632 has been seted up around the butterfly plate 4 right side, and through-hole 633 has been seted up around the sealing washer 61 surface, and fastening bolt 631's the other end runs through-hole 633 and with the inner chamber bolt of screw hole 632, through setting up screw hole 632, through-hole 633 and fastening bolt 631's cooperation, can fix sealing washer 61 and movable shaft seat 62 with butterfly plate 4, has strengthened the fixed effect of butterfly plate 4, has prevented simultaneously that sealing washer 61 and butterfly plate 4 from taking place to drop.

The front and the back of valve body 1 have all inlayed thread bush 8, thread bush 8's inner chamber threaded connection has screw rod 9, the equal bolt of the surperficial symmetry position in butterfly plate 4 left side has locating piece 10, locating piece 10's surface offered with screw rod 9 cooperation use the locating hole 11, the seal cover is installed to the outside end that thread bush 8 is located valve body 1, through setting up thread bush 8, screw rod 9, locating piece 10, locating hole 11 and seal cover's cooperation, can carry out spacing fixedly to butterfly plate 4 when closing, the stability of butterfly plate 4 has been strengthened under the impact of rivers and atmospheric pressure with movable shaft seat 62.

The bottom of the valve body 1 is provided with a lower shaft sleeve 12, the lower end of the valve rod 2 is rotationally connected with the inner cavity of the lower shaft sleeve 12, and the valve rod 2 can be supported by rotation.

The two seal grooves 7 are arranged in an oblique symmetry manner, the inner sides of the seal grooves 7 are arc-shaped, and the butterfly plate 4 can be limited in the process of driving the seal ring 61 to rotate.

The bottom fixedly connected with base 13 of lower axle sleeve 12, the mounting hole has all been seted up around the base 13 bottom, conveniently installs fixedly to the butterfly valve.

When the butterfly valve is used specifically, a user installs the butterfly valve and a pipeline, when the butterfly valve drives the valve rod 2 to rotate anticlockwise through the control component 14, so that the valve rod 2 drives the butterfly plate 4 and the sealing ring 61 to leave along the sealing groove 7 on the fixed shaft seat 5, the butterfly valve can be opened, when the butterfly valve is closed through the pipe, the user operates the control component 14 to drive the valve rod 2 to rotate clockwise, then the valve rod 2 drives the butterfly plate 4 to rotate clockwise, meanwhile, the fixed shaft seat 5 and the sealing ring 61 are fixed on the butterfly plate 4 through the fastening bolt 631, the butterfly plate 4 drives the sealing ring 61 and the fixed shaft seat 5 to rotate clockwise simultaneously while rotating clockwise, then the sealing ring 61 can move inwards along the sealing groove 7 until being fixedly clamped with the inside of the sealing groove 7, then the user rotates the screw 9, one end of the screw 9 is inserted into the positioning hole 11 through the cooperation of the screw sleeve 8 to further fix and limit the butterfly plate 4, so that the sealing performance of the butterfly valve is improved, the situation of leakage is avoided.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein 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 (7)

1. The utility model provides a butterfly valve that sealed effectual, includes valve body (1) and valve rod (2), its characterized in that: the upper surface of valve rod (2) has cup jointed last axle sleeve (3), control assembly (14) that use with valve rod (2) cooperation are installed at the top of going up axle sleeve (3), the bottom and the valve body (1) fixed connection of going up axle sleeve (3), valve rod (2) run through valve body (1) and fixedly connected with butterfly plate (4), the inner chamber fixedly connected with fixed axle bed (5) of valve body (1), butterfly plate (4) are located the inner chamber of fixed axle bed (5), the right side of butterfly plate (4) is provided with seal assembly (6), seal groove (7) have all been seted up to the front and the back of fixed axle bed (5) inner wall, the inner chamber joint of seal assembly (6) and seal groove (7).

2. The butterfly valve with good sealing effect according to claim 1, wherein: the sealing assembly (6) comprises a sealing ring (61), the sealing ring (61) is arranged on the right side of the butterfly plate (4), a movable shaft seat (62) is arranged on the right side of the sealing ring (61), and the periphery of the outer side of the movable shaft seat (62) is bolted with the surfaces of the sealing ring (61) and the butterfly plate (4) through fasteners (63).

3. The butterfly valve with good sealing effect according to claim 2, wherein: the fastener (63) comprises fastening bolts (631), the fastening bolts (631) are arranged on the periphery of the movable shaft seat (62), threaded holes (632) are formed in the periphery of the right side of the butterfly plate (4), through holes (633) are formed in the periphery of the surface of the sealing ring (61), and the other ends of the fastening bolts (631) penetrate through the through holes (633) and are in bolting with the inner cavities of the threaded holes (632).

4. The butterfly valve with good sealing effect according to claim 1, wherein: the valve is characterized in that the front surface and the back surface of the valve body (1) are embedded with threaded sleeves (8), the inner cavity of each threaded sleeve (8) is in threaded connection with a screw rod (9), positioning blocks (10) are bolted to symmetrical positions on the left surface of each butterfly plate (4), positioning holes (11) matched with the screw rods (9) are formed in the surfaces of the positioning blocks (10), and sealing sleeves are mounted at the outer ends of the threaded sleeves (8) located on the valve body (1).

5. The butterfly valve with good sealing effect according to claim 1, wherein: the bottom of the valve body (1) is provided with a lower shaft sleeve (12), and the lower end of the valve rod (2) is rotationally connected with the inner cavity of the lower shaft sleeve (12).

6. The butterfly valve with good sealing effect according to claim 1, wherein: the two sealing grooves (7) are arranged in an oblique symmetry mode, and the inner sides of the sealing grooves (7) are arc-shaped.

7. The butterfly valve with good sealing effect according to claim 5, wherein: the bottom of the lower shaft sleeve (12) is fixedly connected with a base (13), and mounting holes are formed in the periphery of the bottom of the base (13).

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