CN213598589U

CN213598589U - Butterfly valve with sealing structure

Info

Publication number: CN213598589U
Application number: CN202022300152.7U
Authority: CN
Inventors: 刘忠立
Original assignee: Tianjin Yingkai Valve Co ltd
Current assignee: Tianjin Yingkai Valve Co ltd
Priority date: 2020-10-15
Filing date: 2020-10-15
Publication date: 2021-07-02
Anticipated expiration: 2030-10-15

Abstract

The utility model discloses a butterfly valve with a sealing structure, which comprises a valve rod shell and a valve tube, wherein the top surface of the valve rod shell is provided with a worm, and the top end of the worm is rotationally connected with the top surface of the valve rod shell; the left side of the valve rod shell is provided with an electric control box, and the right end of the electric control box is fixedly connected with the left side of the valve rod shell through a screw; the bottom end of the valve rod shell is provided with a bracket, and the top surface of the bracket is fixedly connected with the bottom end of the valve rod shell through a screw; the bottom surface of the bracket is provided with an upper shaft sleeve, the top end of the upper shaft sleeve is fixedly connected with the bottom surface of the bracket through a screw, and the bottom end of the upper shaft sleeve is integrally connected with the top surface of the valve pipe; the bottom surface of the valve pipe is provided with a lower shaft sleeve, and the top end of the lower shaft sleeve is integrally connected with the bottom surface of the valve pipe; the top of the butterfly valve is provided with an electric control box control worm and a valve rod, the rubber ring group is fixedly mounted inside the upper shaft sleeve and the lower shaft sleeve, fluid in the pipe can be effectively prevented from leaking outside, the rubber rings are fixedly mounted on the inner side of a valve seat ring connected with the butterfly plate door on the inner wall of the valve pipe and the surface of the valve plate, the sealing performance of valve closing is improved, and the leakage inside and outside the pipeline is fully prevented.

Description

Butterfly valve with sealing structure

Technical Field

The utility model belongs to the technical field of the equipment part, especially, relate to a butterfly valve with seal structure.

Background

The sealing performance of the valve refers to the capability of each sealing part of the valve for preventing medium leakage, and is the most important technical performance index of the valve. The sealing part of the valve has three parts: the contact part between the opening and closing piece and the two sealing surfaces of the valve seat; the matching part of the packing, the valve rod and the packing box; the valve body is connected with the valve cover. Where the former leak is called an internal leak, known as a leak that is not tight, it will affect the ability of the valve to shut off the media. Internal leakage is not allowed for shut-off valves and the like. The latter two leaks are called external leaks, i.e. leakage of medium from the inside of the valve to the outside of the valve. The leakage can cause material loss and environmental pollution, and can also cause accidents in serious cases. For flammable and explosive, toxic or radioactive media, leakage is not allowed, and the valve must have reliable sealing performance. The requirement for valve sealing performance is to prevent leakage. The leakage condition of the valve is different according to different positions and degrees of leakage of the valve, and therefore different leakage prevention measures need to be provided. The soft sealing valve has better sealing performance than the hard sealing valve; the strength of the composite sealing valve is higher than that of the soft sealing valve; soft sealing: the sealing method using PTFE, nylon, rubber, etc. as the sealing material. The sealing material is easy to wear and has good sealing property; hard sealing: the metal-to-metal sealing has high strength, but the sealing performance is poor, so that real zero leakage is difficult to realize; and (3) compound sealing: a sealing mode combining a soft seal and a hard seal.

The valves with excellent sealing performance in the market at present are various, but different valves are needed under different conditions, wherein the flange type butterfly valve is widely applied, but the existing butterfly valve has general sealing performance, a sealing structure is few, and safety problems are easy to occur, so that the butterfly valve with the sealing structure is provided.

Disclosure of Invention

In order to solve the technical problem, the utility model discloses a realize through following technical scheme:

the utility model relates to a butterfly valve with a sealing structure, which comprises a valve rod shell and a valve tube, wherein the top surface of the valve rod shell is provided with a worm, and the top end of the worm is rotationally connected with the top surface of the valve rod shell; an electric control box is arranged on the left side of the valve rod shell, and the right end of the electric control box is fixedly connected with the left side of the valve rod shell through a screw; the bottom end of the valve rod shell is provided with a bracket, and the top surface of the bracket is fixedly connected with the bottom end of the valve rod shell through a screw; the bottom surface of the bracket is provided with an upper shaft sleeve, the top end of the upper shaft sleeve is fixedly connected with the bottom surface of the bracket through a screw, and the bottom end of the upper shaft sleeve is integrally connected with the top surface of the valve pipe; the valve pipe bottom surface is provided with lower axle sleeve, lower axle sleeve top and valve pipe bottom surface body coupling.

As a preferred technical scheme of the utility model, a valve rod is installed on the bottom surface of the valve rod shell, and the top end of the valve rod is rotatably connected with the bottom surface of the valve rod shell and is sleeved with the support, the upper shaft sleeve and the inner part of the lower shaft sleeve; the top end of the inner wall of the upper shaft sleeve is provided with a T-shaped sleeve ring, and the outer wall of the T-shaped sleeve ring is fixedly connected with the top end of the inner wall of the upper shaft sleeve through a screw; the bottom surface of the T-shaped sleeve ring is provided with a first rubber ring group, and the first rubber ring group is fixedly connected with the center of the inner wall of the upper shaft sleeve.

As a preferred technical scheme of the utility model, the right end of the inner wall of the valve tube is provided with a rubber ring which is clamped with the right end of the inner wall of the valve tube; a valve seat ring is arranged on the right side of the rubber ring and is clamped with the right end of the inner wall of the valve pipe; the valve seat ring right side is provided with solid fixed ring, gu fixed ring passes through screw fixed connection with valve inside pipe wall right-hand member.

As a preferred technical scheme of the utility model, a valve plate is installed in the center of the valve rod, a rod groove is arranged at the left end of the valve plate, the rod groove is integrally connected with the left end of the valve plate, and the center of the valve rod is fixedly connected with the rod groove; the valve plate is characterized in that a reinforcing rib is arranged in the center of the left end of the valve plate, and two ends of the reinforcing rib are fixedly connected with the rod groove and the valve plate respectively.

As a preferred technical scheme of the utility model, a rubber gasket ring group is arranged at the edge of the right side of the valve plate, and the rubber gasket ring group is fixedly connected with the edge of the right side of the valve plate through screws; the right side of the rubber gasket ring group is provided with a sealing ring group, and the sealing ring group is fixedly connected with the edge of the right side of the valve plate through screws.

As a preferred technical scheme of the utility model, the inner wall of the lower shaft sleeve is provided with a second rubber ring group, and the second rubber ring group is fixedly connected with the center of the inner wall of the lower shaft sleeve; and a fixed bottom ring sleeve is arranged on the bottom surface of the second rubber ring group and is fixedly connected with the bottom end of the inner wall of the lower shaft sleeve.

As a preferred technical scheme of the utility model, the valve rod bottom is installed to the outside bottom surface of lower axle sleeve, valve rod bottom and the outside underrun screw fixed connection of lower axle sleeve.

The utility model discloses following beneficial effect has:

this butterfly valve appearance is common general flange butterfly valve, the top is provided with the rotation of automatically controlled box control worm and valve rod, automatically controlled box is by system terminal control, realize remote control pipe-line system, degree of automation is high, this butterfly valve has adopted a plurality of sealed designs simultaneously, the inside equal fixed mounting of upper shaft cover and lower axle sleeve has the rubber circle group that has certain thickness, can prevent effectively that intraductal fluid from leaking from valve butterfly plate door junction, the valve seat ring inboard that valve inside pipe inner wall and butterfly plate door meet and the equal fixed mounting in valve plate surface have the rubber ring, the leakproofness that the valve was closed has also strengthened the pipeline junction simultaneously, fully prevent to reveal inside and outside the pipeline.

Drawings

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

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic sectional structure of the present invention;

fig. 3 is an enlarged schematic view of the position a of the present invention.

In the figure: 1. a valve stem housing; 2. a valve tube; 3. a worm; 4. an electronic control box; 5. a support; 6. an upper shaft sleeve; 7. a lower shaft sleeve; 8. a valve stem; 9. a T-shaped collar; 101. a first rubber ring set; 102. a second rubber ring group; 11. a fixing ring; 12. a valve seat ring; 13. a rubber ring; 14. a seal ring set; 15. a rubber gasket ring set; 16. a valve plate; 17. a rod groove; 18. reinforcing ribs; 19. fixing a bottom ring sleeve; 20. valve rod bottom cap.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1, the utility model relates to a butterfly valve with a sealing structure, which comprises a valve rod shell 1 and a valve tube 2, wherein the top surface of the valve rod shell 1 is provided with a worm 3, and the top end of the worm 3 is rotatably connected with the top surface of the valve rod shell 1; an electric control box 4 is arranged on the left side of the valve rod shell 1, and the right end of the electric control box 4 is fixedly connected with the left side of the valve rod shell 1 through a screw; the bottom end of the valve rod shell 1 is provided with a bracket 5, and the top surface of the bracket 5 is fixedly connected with the bottom end of the valve rod shell 1 through a screw; the bottom surface of the bracket 5 is provided with an upper shaft sleeve 6, the top end of the upper shaft sleeve 6 is fixedly connected with the bottom surface of the bracket 5 through a screw, and the bottom end of the upper shaft sleeve 6 is integrally connected with the top surface of the valve tube 2; the bottom surface of the valve pipe 2 is provided with a lower shaft sleeve 7, and the top end of the lower shaft sleeve 7 is integrally connected with the bottom surface of the valve pipe 2.

As shown in fig. 2, a valve rod 8 is mounted on the bottom surface of the valve rod housing 1, and the top end of the valve rod 8 is rotatably connected with the bottom surface of the valve rod housing 1 and is sleeved with the support 5, the upper shaft sleeve 6 and the lower shaft sleeve 7; the top end of the inner wall of the upper shaft sleeve 6 is provided with a T-shaped lantern ring 9, and the outer wall of the T-shaped lantern ring 9 is fixedly connected with the top end of the inner wall of the upper shaft sleeve 6 through a screw; a first rubber ring group 101 is arranged on the bottom surface of the T-shaped lantern ring 9, and the first rubber ring group 101 is fixedly connected with the center of the inner wall of the upper shaft sleeve 6; a valve plate 16 is arranged in the center of the valve rod 8, a rod groove 17 is formed in the left end of the valve plate 16, the rod groove 17 is integrally connected with the left end of the valve plate 16, and the center of the valve rod 8 is fixedly connected with the rod groove 17; a reinforcing rib 18 is arranged in the center of the left end of the valve plate 16, and two ends of the reinforcing rib 18 are respectively fixedly connected with the rod groove 17 and the valve plate 16; a rubber gasket ring group 15 is arranged at the right edge of the valve plate 16, and the rubber gasket ring group 15 is fixedly connected with the right edge of the valve plate 16 through a screw; a sealing ring group 14 is arranged on the right side of the rubber gasket ring group 15, and the sealing ring group 14 is fixedly connected with the right side edge of the valve plate 16 through a screw; a second rubber ring group 102 is arranged on the inner wall of the lower shaft sleeve 7, and the second rubber ring group 102 is fixedly connected with the center of the inner wall of the lower shaft sleeve 7; the bottom surface of the second rubber ring group 102 is provided with a fixed bottom ring sleeve 19, and the fixed bottom ring sleeve 19 is fixedly connected with the bottom end of the inner wall of the lower shaft sleeve 7; the valve rod bottom cover 20 is arranged on the bottom surface of the outer part of the lower shaft sleeve 7, and the valve rod bottom cover 20 is fixedly connected with the bottom surface of the outer part of the lower shaft sleeve 7 through screws.

As shown in fig. 3, a rubber ring 13 is arranged at the right end of the inner wall of the valve tube 2, and the rubber ring 13 is clamped with the right end of the inner wall of the valve tube 2; a valve seat ring 12 is arranged on the right side of the rubber ring 13, and the valve seat ring 12 is clamped with the right end of the inner wall of the valve pipe 2; the right side of the valve seat ring 12 is provided with a fixing ring 11, and the fixing ring 11 is fixedly connected with the right end of the inner wall of the valve pipe 2 through a screw.

Finally, it should be noted that: in the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., 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 invention. 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 preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. The butterfly valve with the sealing structure is characterized by comprising a valve rod shell (1) and a valve pipe (2), wherein a worm (3) is installed on the top surface of the valve rod shell (1), and the top end of the worm (3) is rotatably connected with the top surface of the valve rod shell (1); an electric control box (4) is arranged on the left side of the valve rod shell (1), and the right end of the electric control box (4) is fixedly connected with the left side of the valve rod shell (1) through a screw; the bottom end of the valve rod shell (1) is provided with a bracket (5), and the top surface of the bracket (5) is fixedly connected with the bottom end of the valve rod shell (1) through a screw; an upper shaft sleeve (6) is mounted on the bottom surface of the support (5), the top end of the upper shaft sleeve (6) is fixedly connected with the bottom surface of the support (5) through a screw, and the bottom end of the upper shaft sleeve is integrally connected with the top surface of the valve pipe (2); the valve tube (2) is characterized in that a lower shaft sleeve (7) is arranged on the bottom surface of the valve tube, and the top end of the lower shaft sleeve (7) is integrally connected with the bottom surface of the valve tube (2).

2. The butterfly valve with the sealing structure according to claim 1, wherein a valve rod (8) is mounted on the bottom surface of the valve rod housing (1), and the top end of the valve rod (8) is rotatably connected with the bottom surface of the valve rod housing (1) and is sleeved with the support (5), the upper shaft sleeve (6) and the lower shaft sleeve (7); a T-shaped lantern ring (9) is mounted at the top end of the inner wall of the upper shaft sleeve (6), and the outer wall of the T-shaped lantern ring (9) is fixedly connected with the top end of the inner wall of the upper shaft sleeve (6) through a screw; the bottom surface of the T-shaped sleeve ring (9) is provided with a first rubber ring group (101), and the first rubber ring group (101) is fixedly connected with the center of the inner wall of the upper shaft sleeve (6).

3. The butterfly valve with the sealing structure according to claim 1, wherein a rubber ring (13) is arranged at the right end of the inner wall of the valve tube (2), and the rubber ring (13) is clamped with the right end of the inner wall of the valve tube (2); a valve seat ring (12) is arranged on the right side of the rubber ring (13), and the valve seat ring (12) is clamped with the right end of the inner wall of the valve pipe (2); the valve seat ring (12) is provided with a fixing ring (11) on the right side, and the fixing ring (11) is fixedly connected with the right end of the inner wall of the valve pipe (2) through a screw.

4. The butterfly valve with the sealing structure according to claim 1, wherein a valve plate (16) is centrally installed on the valve stem (8), a stem groove (17) is formed at the left end of the valve plate (16), the stem groove (17) is integrally connected with the left end of the valve plate (16), and the valve stem (8) is fixedly connected with the stem groove (17); the valve plate is characterized in that a reinforcing rib (18) is arranged in the center of the left end of the valve plate (16), and two ends of the reinforcing rib (18) are fixedly connected with the rod groove (17) and the valve plate (16) respectively.

5. The butterfly valve with the sealing structure according to claim 4, wherein a rubber gasket ring set (15) is arranged at the right edge of the valve plate (16), and the rubber gasket ring set (15) is fixedly connected with the right edge of the valve plate (16) through a screw; the right side of the rubber gasket ring group (15) is provided with a sealing ring group (14), and the sealing ring group (14) is fixedly connected with the edge of the right side of the valve plate (16) through screws.

6. The butterfly valve with the sealing structure according to claim 1, wherein a second rubber ring set (102) is arranged on the inner wall of the lower shaft sleeve (7), and the second rubber ring set (102) is fixedly connected with the center of the inner wall of the lower shaft sleeve (7); the bottom surface of the second rubber ring group (102) is provided with a fixed bottom ring sleeve (19), and the fixed bottom ring sleeve (19) is fixedly connected with the bottom end of the inner wall of the lower shaft sleeve (7).

7. The butterfly valve with the sealing structure according to claim 1, wherein a valve stem bottom cover (20) is mounted on an outer bottom surface of the lower sleeve (7), and the valve stem bottom cover (20) is fixedly connected with the outer bottom surface of the lower sleeve (7) through screws.