CN217272048U

CN217272048U - Low-torque large-caliber ball valve

Info

Publication number: CN217272048U
Application number: CN202220264419.8U
Authority: CN
Inventors: 林飞
Original assignee: Zhejiang Tianhao Valve Co ltd
Current assignee: Zhejiang Tianhao Valve Co ltd
Priority date: 2022-02-09
Filing date: 2022-02-09
Publication date: 2022-08-23
Anticipated expiration: 2032-02-09

Abstract

The utility model discloses a low moment of torsion heavy-calibre ball valve, including the valve body, the mid-mounting of valve body has the ball valve seat, and the regulation seat is installed at the top of ball valve seat, installs the valve rod on the regulation seat, installs slewing mechanism in the regulation seat, and slewing mechanism includes central axle bed, installs a plurality of even equidistance on the circumference outer wall of central axle bed and is the connecting rod of cyclic annular range, and the connecting rod is kept away from a tip of central axle bed and is installed the turning ball, and the turning ball rotates with the connecting rod to be connected, and coaxial connecting cylinder is installed to the top and the bottom of central axle bed. The utility model discloses a slewing mechanism who sets up in adjusting the seat, and slewing mechanism passes through central axis seat, rolling ball and connecting rod and constitutes, rolling connection between rolling ball and the regulation seat reduces frictional force to save strength, the coaxial connecting cylinder is installed to central axis seat top and bottom, is convenient for be connected with ball valve and valve rod, is convenient for install, dismantles and later stage and maintains, practices thrift cost of maintenance.

Description

Low-torque large-caliber ball valve

Technical Field

The utility model relates to a ooff valve technical field specifically is a low moment of torsion heavy-calibre ball valve.

Background

The ball valve is a novel valve which is appeared in the 50 th century, the ball valve has been developed into a main valve class in over 30 years, the ball valve is widely applied to the aspects of aerospace, petrochemical industry, long-distance pipelines, light industrial foods, buildings and the like, the ball valve is designed in the United states in the early 19 th century in the 80 th century, but proper sealing materials are lacked at the moment, the development of a seeking method is limited, the ball valve cannot become a formal industrial product, and the generation and the development of the ball valve are converted due to the elastic sealing materials such as polytetrafluoroethylene until the 50 th century. The ball valve is widely applied due to the unique structural characteristics, is an important component in the valve, and is a heavy-calibre ball valve in the current market, so that the ball valve is difficult to open and close, inconvenient to use and high in maintenance cost due to large internal friction.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a low moment of torsion heavy-calibre ball valve to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the utility model provides a low moment of torsion heavy-calibre ball valve, includes the valve body, the mid-mounting of valve body has the ball valve seat, the regulation seat is installed at the top of ball valve seat, install the valve rod on the regulation seat, install slewing mechanism in the regulation seat, slewing mechanism includes central axle bed, install a plurality of even equidistance on the circumference outer wall of central axle bed and be the connecting rod of cyclic annular range, the connecting rod is kept away from a tip of central axle bed and is installed the turning ball, the turning ball rotates with the connecting rod to be connected, coaxial connecting cylinder is installed to the top and the bottom of central axle bed, the connecting cylinder and the valve rod coaxial coupling at central axle bed top, the connecting cylinder and the ball valve coaxial coupling in the ball valve seat of central axle bed bottom.

Preferably, the connecting cylinder is provided with a limiting hole, and the valve rod is fixedly connected with the connecting cylinder through a limiting bolt.

Preferably, a rotary disc is mounted on the top of the valve rod.

Preferably, the number of the connecting rods is at least three.

Preferably, the connecting rod is in threaded connection with the outer wall of the central shaft seat.

Preferably, the adjusting seat comprises a base and a top seat, and the top of the base and the bottom of the top seat are provided with a rotating groove for installing a rotating mechanism.

Preferably, the base and the top seat are connected through a fixing bolt.

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

1. in this low moment of torsion heavy-calibre ball valve, through the slewing mechanism who sets up in adjusting the seat, and slewing mechanism passes through central axis seat, rolling ball and connecting rod and constitutes, rolling connection between rolling ball and the regulation seat reduces frictional force to save strength, the coaxial connecting cylinder is installed to central axis seat top and bottom, is convenient for be connected with ball valve and valve rod, is convenient for install, dismantles and later stage maintains, practices thrift cost of maintenance.

2. In this low moment of torsion heavy-calibre ball valve, through spacing bolt fixed connection between valve rod and the connecting cylinder, be convenient for with ball valve and connecting cylinder installation or dismantlement in valve rod, the ball valve seat, the carousel is installed at the top of valve rod, makes things convenient for operating personnel to adjust.

3. In this low moment of torsion heavy-calibre ball valve, threaded connection between connecting rod and the center pin seat outer wall is convenient for install the connecting rod or dismantle, and single connecting rod damages the back, can change alone, practices thrift cost of maintenance, connects through fixing bolt between base and the footstock, and the installation of being convenient for is with dismantling, can regularly inspect or maintain increase of service life to inside slewing mechanism.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a schematic cross-sectional view of the adjusting base of the present invention;

fig. 3 is a schematic structural diagram of the rotating mechanism of the present invention.

The meaning of the various reference symbols in the drawings:

10. a valve body; 11. a flange plate;

20. a ball valve seat; 21. an adjusting seat; 211. a base; 212. a top seat; 213. a rotating groove; 22. a rotating mechanism; 221. a central shaft seat; 222. a connecting cylinder; 223. a limiting hole; 224. rotating the ball; 225. a connecting rod;

30. a turntable; 31. a valve stem.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to 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 in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", 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 to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Example 1

A low-torque large-caliber ball valve is shown in figures 1-3 and comprises a valve body 10, a ball valve seat 20 is mounted in the middle of the valve body 10, an adjusting seat 21 is mounted at the top of the ball valve seat 20, a valve rod 31 is mounted on the adjusting seat 21, a rotating mechanism 22 is mounted in the adjusting seat 21 and comprises a central shaft seat 221, a plurality of connecting rods 225 which are uniformly arranged in an annular mode at equal intervals are mounted on the outer wall of the circumference of the central shaft seat 221, a rotating ball 224 is mounted at one end, far away from the central shaft seat 221, of each connecting rod 225, each rotating ball 224 is rotatably connected with the corresponding connecting rod 225, coaxial connecting cylinders 222 are mounted at the top and the bottom of the central shaft seat 221, the connecting cylinders 222 at the top of the central shaft seat 221 are coaxially connected with the valve rod 31, the connecting cylinders 222 at the bottom of the central shaft seat 221 are coaxially connected with the ball valve in the ball valve seat 20, and pass through the rotating mechanism 22 arranged in the adjusting seat 21, and the rotating mechanism 22 passes through the central shaft seat 221, The rotating ball 224 and the connecting rod 225 are formed, the rotating ball 224 and the adjusting seat 21 are in rolling connection, friction is reduced, and therefore strength is saved, the coaxial connecting cylinder 222 is installed at the top and the bottom of the central shaft seat 221, connection with the ball valve and the valve rod 31 is facilitated, installation, disassembly and later maintenance are facilitated, and maintenance cost is saved.

Furthermore, a limiting hole 223 is formed in the connecting cylinder 222, and the valve rod 31 is fixedly connected with the connecting cylinder 222 through a limiting bolt, so that the valve rod 31, the ball valve in the ball valve seat 20 and the connecting cylinder 222 can be conveniently mounted or dismounted.

Specifically, the top of the valve rod 31 is provided with the rotary table 30, so that the adjustment by an operator is facilitated.

It is worth to say that, the quantity of connecting rod 225 is three groups at least, and threaded connection between connecting rod 225 and the center pin seat 221 outer wall is convenient for install or dismantle connecting rod 225, and single connecting rod 225 damages the back, can change alone, practices thrift cost of maintenance.

In addition, adjust seat 21 and include base 211 and footstock 212, the rotation groove 213 that is used for installing slewing mechanism 22 is seted up to the top of base 211 and the bottom of footstock 212, passes through fixing bolt to be connected between base 211 and the footstock 212, and the installation and the dismantlement of being convenient for can regularly inspect or maintain the slewing mechanism 22 of inside, increase of service life.

The utility model discloses a theory of operation of low moment of torsion heavy-calibre ball valve: an operator opens the base 211 and the top seat 212 of the adjusting seat 21 first, installs the rotating mechanism 22 in the rotating groove 213, and enables the ball valve in the ball valve seat 20 to be connected with the connecting cylinder 222 at the bottom, the valve rod 31 penetrates through the top seat 212 and is connected with the connecting cylinder 222 at the top, the base 211 and the top seat 212 are connected through the fixing bolt, and the flow of the ball valve is adjusted through the rotating turntable 30.

The foregoing shows and describes the basic principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a low moment of torsion heavy-calibre ball valve which characterized in that: comprises a valve body (10), a ball valve seat (20) is arranged in the middle of the valve body (10), the top of the ball valve seat (20) is provided with an adjusting seat (21), the adjusting seat (21) is provided with a valve rod (31), a rotating mechanism (22) is arranged in the adjusting seat (21), the rotating mechanism (22) comprises a central shaft seat (221), a plurality of connecting rods (225) which are uniformly arranged in an equal distance and ring shape are arranged on the circumferential outer wall of the central shaft seat (221), one end of the connecting rod (225) far away from the central shaft seat (221) is provided with a rotating ball (224), the rotating ball (224) is rotatably connected with a connecting rod (225), the top and the bottom of the central shaft seat (221) are provided with coaxial connecting cylinders (222), the connecting cylinder (222) at the top of the central shaft seat (221) is coaxially connected with the valve rod (31), and a connecting cylinder (222) at the bottom of the central shaft seat (221) is coaxially connected with a ball valve in the ball valve seat (20).

2. A low torque large bore ball valve according to claim 1, wherein: the connecting cylinder (222) is provided with a limiting hole (223), and the valve rod (31) is fixedly connected with the connecting cylinder (222) through a limiting bolt.

3. A low torque large bore ball valve according to claim 1, wherein: and a rotary disc (30) is arranged at the top of the valve rod (31).

4. A low torque large bore ball valve according to claim 1, wherein: the number of the connecting rods (225) is at least three.

5. A low torque large bore ball valve according to claim 1, wherein: the connecting rod (225) is in threaded connection with the outer wall of the central shaft seat (221).

6. A low torque large bore ball valve according to claim 1, wherein: the adjusting seat (21) comprises a base (211) and a top seat (212), and a rotating groove (213) for installing a rotating mechanism (22) is formed in the top of the base (211) and the bottom of the top seat (212).

7. The low-torque large-caliber ball valve according to claim 6, wherein: the base (211) and the top seat (212) are connected through a fixing bolt.