阅读说明：本技术 一种可在线维修的上装式高效球阀 (Top-mounted efficient ball valve capable of being maintained on line ) 是由 叶克东 章文忠 于 2019-03-21 设计创作，主要内容包括：一种可在线维修的上装式高效球阀,包括阀体、球体、阀杆、阀座,所述的阀体内部设有球体和紧固装置；所述的紧固装置包括固定托环、第一限位环、第二限位环和密闭环,固定托环和密闭环上设有多个对称的固定块,相对称的两个固定块通过弹簧连接,第一限位环和第二限位环分别通过固定螺母和固定螺套与固定托环和密闭环固定连接,第一限位环上设有滑动环,密闭环的内壁上设有滑动槽,滑动环放置在滑动槽内。采用上述结构,通过紧固装置中利用弹簧的弹性,从两个方向对球阀中的球体进行加固,不仅方便在线维修、安装和拆卸球阀,更提高了使用过程中整个阀门的工作效果,不仅密封性好,而且方便调节；整个装置结构简单,方便使用,实用性强。(An upper-mounted efficient ball valve capable of being maintained on line comprises a valve body, a ball body, a valve rod and a valve seat, wherein the ball body and a fastening device are arranged inside the valve body; the fastening device comprises a fixed supporting ring, a first limiting ring, a second limiting ring and a closed ring, a plurality of symmetrical fixing blocks are arranged on the fixed supporting ring and the closed ring, the two symmetrical fixing blocks are connected through springs, the first limiting ring and the second limiting ring are respectively fixedly connected with the fixed supporting ring and the closed ring through fixing nuts and fixing screw sleeves, a sliding ring is arranged on the first limiting ring, a sliding groove is formed in the inner wall of the closed ring, and the sliding ring is placed in the sliding groove. By adopting the structure, the ball body in the ball valve is reinforced from two directions by utilizing the elasticity of the spring in the fastening device, so that the ball valve is convenient to maintain, install and disassemble on line, the working effect of the whole valve in the using process is improved, the sealing performance is good, and the adjustment is convenient; the whole device is simple in structure, convenient to use and high in practicability.)

1. The utility model provides a but high-efficient ball valve of facial make-up of online maintenance, includes valve body (1), spheroid (2), valve rod (3), disk seat (8), its characterized in that: the valve comprises a valve body (1), wherein first connecting flanges (4) are arranged on the left side and the right side of the valve body (1), a second connecting flange (5) is arranged at the top of the valve body (1), the second connecting flange (5) is connected with a valve seat (8) through a first fixing bolt (9), a ball body (2) and a fastening device (18) are arranged inside the valve body (1), the top of the ball body (2) is connected with one end of a valve rod (3), the other end of the valve rod (3) penetrates through the valve seat (8) and extends to the top of the valve seat (8), and a through hole (6) is formed in the ball body (2);

fastener (18) including fixed ring (19), first spacing ring (22), second spacing ring (26) and closed ring (27), be equipped with fixed block (24) of a plurality of symmetries on fixed ring (19) and closed ring (27), two symmetrical fixed blocks (24) are connected through spring (25), first spacing ring (22) and second spacing ring (26) are respectively through fixation nut (20) and fixed swivel nut (21) and fixed ring (19) and closed ring (27) fixed connection, be equipped with slip ring (23) on first spacing ring (22), be equipped with sliding tray (32) on the inner wall of closed ring (27), place in sliding tray (32) slip ring (23).

2. The on-line maintainable top-mounted high-efficiency ball valve of claim 1, wherein: the valve rod (3) on the cover be equipped with first sealing ring (7) and limiting plate (10), limiting plate (10) are through second fixing bolt (11) and disk seat (8) fixed connection.

3. The on-line maintainable top-mounted high-efficiency ball valve of claim 1, wherein: the top of valve seat (8) pass through third fixing bolt (13) and fixed plate (12) fixed connection, fixed plate (12) pass through backup pad (14) and are connected with company's board (15), be equipped with a plurality of fixed orificess (16) on company's board (15).

4. The on-line maintainable top-mounted high-efficiency ball valve of claim 1, wherein: and a second sealing ring (17) is arranged at the joint of the second connecting flange (5) and the valve seat (8).

5. The on-line maintainable top-mounted high-efficiency ball valve of claim 1, wherein: the sealing ring (27) is provided with a plurality of limiting grooves (28), and third sealing rings (29) are arranged in the limiting grooves (28).

6. The on-line maintainable top-mounted high-efficiency ball valve of claim 1, wherein: the fixed supporting ring (19) is provided with a fourth sealing ring (30) and an arc surface (31), and the fourth sealing ring (30) and the arc surface (31) are in complete contact with the ball body (2).

7. The on-line maintainable top-mounted high-efficiency ball valve of claim 1, wherein: the minimum inner diameters of the fixed supporting ring (19), the sliding ring (23) and the sealing ring (27) are the same.

8. The on-line maintainable top-mounted high-efficiency ball valve of claim 1, wherein: the diameter of the through hole (6) is not more than the minimum inner diameter of the fixed supporting ring (19).

9. The on-line maintainable top-mounted high-efficiency ball valve of claim 1, wherein: the two fastening devices (18) are arranged in the valve body (1) between the ball body (2) and the first connecting flange (4) respectively.

Technical Field

The invention relates to the field of valves, in particular to an upper-mounted efficient ball valve capable of being maintained on line.

Background

The valve is a control part in a fluid conveying system and has the functions of stopping, adjusting, guiding, preventing counter flow, stabilizing pressure, shunting or overflowing and relieving pressure and the like. The variety and size of valves is quite large, ranging from the simplest shut-off valves to the variety of valves used in extremely complex autonomous systems, of which ball valves are more widely used. The existing ball valve body is mostly welded into a whole for ensuring good sealing performance, although the sealing performance of the ball valve is good, the ball valve is inconvenient to maintain on line, a plurality of upper-mounted ball valves which are convenient to maintain on line can often cause the problem of sealing performance, and the effects of stopping, adjusting and the like can be played, but the efficiency is not high.

Disclosure of Invention

The invention aims to solve the technical problem of providing an upper-mounted efficient ball valve capable of being maintained on line, wherein a ball body in the ball valve is reinforced from two directions by utilizing the elasticity of a spring in a fastening device, so that the ball valve is convenient to maintain, install and disassemble on line, the working effect of the whole valve in the using process is improved, the sealing performance is good, and the adjustment is convenient; the whole device is simple in structure, convenient to use and high in practicability.

In order to solve the technical problems, the technical scheme adopted by the invention is as follows: a top-mounted efficient ball valve capable of being maintained on line comprises a valve body, a ball body, a valve rod and a valve seat, wherein first connecting flanges are arranged on the left side and the right side of the valve body;

the fastening device comprises a fixed supporting ring, a first limiting ring, a second limiting ring and a closed ring, a plurality of symmetrical fixing blocks are arranged on the fixed supporting ring and the closed ring, the two symmetrical fixing blocks are connected through springs, the first limiting ring and the second limiting ring are respectively fixedly connected with the fixed supporting ring and the closed ring through fixing nuts and fixing screw sleeves, a sliding ring is arranged on the first limiting ring, a sliding groove is formed in the inner wall of the closed ring, and the sliding ring is placed in the sliding groove.

In the preferred scheme, the valve rod on the cover be equipped with first sealing ring and limiting plate, the limiting plate passes through second fixing bolt and disk seat fixed connection.

In the preferred scheme, the top of the valve seat is fixedly connected with the fixed plate through a third fixing bolt, the fixed plate is connected with the connecting plate through the supporting plate, and a plurality of fixing holes are formed in the connecting plate.

In a preferable scheme, a second sealing ring is arranged at the joint of the second connecting flange and the valve seat.

In the preferred scheme, the sealing ring is provided with a plurality of limiting grooves, and a third sealing ring is arranged in each limiting groove.

In the preferred scheme, the fixed supporting ring is provided with a fourth sealing ring and an arc surface, and the fourth sealing ring and the arc surface are in complete contact with the ball body.

In a preferred scheme, the minimum inner diameters of the fixed supporting ring, the sliding ring and the sealing ring are the same.

In a preferred scheme, the diameter of the through hole is not larger than the minimum inner diameter of the fixed supporting ring.

In a preferred scheme, the number of the fastening devices is two, and the two fastening devices are respectively arranged in the valve body between the ball body and the first connecting flange.

The invention provides an upper-mounted efficient ball valve capable of being maintained on line, which has the following beneficial effects by adopting the structure:

(1) the ball body in the ball valve is reinforced from two directions by utilizing the elasticity of the spring in the fastening device, so that the working effect of the whole valve in the using process is improved, and the sealing performance is good;

(2) through the elasticity of utilizing the spring among the fastener, made things convenient for the dismantlement and the installation to the ball valve in the online maintenance process, improved the convenience.

(3) The whole device is simple in structure, convenient to use and high in practicability.

Drawings

The invention is further illustrated by the following examples in conjunction with the accompanying drawings:

fig. 1 is a cross-sectional view of the overall structure of the present invention.

Fig. 2 is a schematic view of the overall structure of the present invention.

Fig. 3 is an exploded view of the ball, stem and seat structure of the present invention.

Fig. 4 is a schematic view of the interior of the valve body and the fastening device of the present invention.

Fig. 5 is an exploded view of the fastening device structure of the present invention.

Fig. 6 is a sectional view of the fastening device of the present invention.

In the figure: the valve comprises a valve body 1, a ball body 2, a valve rod 3, a first connecting flange 4, a second connecting flange 5, a through hole 6, a first sealing ring 7, a valve seat 8, a first fixing bolt 9, a limiting plate 10, a second fixing bolt 11, a fixing plate 12, a third fixing bolt 13, a supporting plate 14, a connecting plate 15, a fixing hole 16, a second sealing ring 17, a fastening device 18, a fixing support ring 19, a fixing nut 20, a fixing threaded sleeve 21, a first limiting ring 22, a sliding ring 23, a fixing block 24, a spring 25, a second limiting ring 26, a sealing ring 27, a limiting groove 28, a third sealing ring 29, a fourth sealing ring 30, an arc surface 31 and a sliding groove 32.

Detailed Description

As shown in fig. 1-6, an upper-mounted efficient ball valve capable of being maintained on line comprises a valve body 1, a ball body 2, a valve rod 3 and a valve seat 8, wherein first connecting flanges 4 are arranged on the left side and the right side of the valve body 1, a second connecting flange 5 is arranged on the top of the valve body 1, the second connecting flange 5 is connected with the valve seat 8 through a first fixing bolt 9, the ball body 2 and a fastening device 18 are arranged inside the valve body 1, the top of the ball body 2 is connected with one end of the valve rod 3, the other end of the valve rod 3 penetrates through the valve seat 8 and extends to the top of the valve seat 8, and a through hole 6 is formed in the;

the fastening device 18 comprises a fixed supporting ring 19, a first limiting ring 22, a second limiting ring 26 and a closed ring 27, a plurality of symmetrical fixing blocks 24 are arranged on the fixed supporting ring 19 and the closed ring 27, the two symmetrical fixing blocks 24 are connected through a spring 25, the first limiting ring 22 and the second limiting ring 26 are respectively fixedly connected with the fixed supporting ring 19 and the closed ring 27 through a fixing nut 20 and a fixing threaded sleeve 21, a sliding ring 23 is arranged on the first limiting ring 22, a sliding groove 32 is formed in the inner wall of the closed ring 27, and the sliding ring 23 is placed in the sliding groove 32.

In the preferred scheme, the valve rod 3 on the cover be equipped with first sealing ring 7 and limiting plate 10, limiting plate 10 passes through second fixing bolt 11 and valve seat 8 fixed connection. The sealing between the valve stem 3 and the valve seat 8 is improved.

In a preferred scheme, the top of the valve seat 8 is fixedly connected with a fixing plate 12 through a third fixing bolt 13, the fixing plate 12 is connected with a connecting plate 15 through a supporting plate 14, and a plurality of fixing holes 16 are formed in the connecting plate 15. The control device is convenient to connect, the selectivity is wide, and the practicability is improved.

In a preferred scheme, a second sealing ring 17 is arranged at the joint of the second connecting flange 5 and the valve seat 8. The sealing performance is improved.

In a preferred scheme, a plurality of limiting grooves 28 are formed in the sealing ring 27, and a third sealing ring 29 is arranged in each limiting groove 28. The sealing performance is improved.

In a preferred scheme, a fourth sealing ring 30 and an arc surface 31 are arranged on the fixed supporting ring 19, and the fourth sealing ring 30 and the arc surface 31 are in complete contact with the ball 2. The working effect of the whole ball valve is improved.

In a preferred scheme, the minimum inner diameters of the fixed supporting ring 19, the sliding ring 23 and the sealing ring 27 are the same. The sealing performance is improved.

In a preferred scheme, the diameter of the through hole 6 is not more than the minimum inner diameter of the fixed supporting ring 19. The working effect of the ball valve is improved.

In a preferred embodiment, there are two fastening devices 18, and two fastening devices 18 are respectively disposed in the valve body 1 between the ball 2 and the first connecting flange 4. The sealing performance is improved, the disassembly and the assembly are convenient, and the online maintenance is convenient.

The using method of the invention comprises the following steps: normally installing and using the ball valve, when needing to be maintained, the whole ball valve does not need to be disassembled, only the pipeline needs to be closed for circulation, then the first fastening bolt 9 is loosened, the valve seat 8, the valve rod 3 and the ball body 2 are sequentially disassembled, when the ball body 2 is disassembled, the fastening device 18 is extruded through the elasticity of the spring 25, a space is generated, the ball body 2 is conveniently taken out, then the fastening device 18 is taken out, and then all parts are maintained;

during the installation, pack into valve body 1 with two fastener 18 earlier, then put into between two fasteners 18 with spheroid 2, utilize the elasticity of spring, spheroid 2 is put into the back and is loosened fastener 18, and two fasteners 18 fasten spheroid 2, say that valve seat 8 installs at the top of valve body 1 again, fix through first fastening bolt 9 and can accomplish the maintenance.

The invention has the beneficial effects that: the ball body in the ball valve is reinforced from two directions by utilizing the elasticity of the spring in the fastening device, so that the ball valve is convenient to maintain, install and disassemble on line, the working effect of the whole valve in the use process is improved, the sealing performance is good, and the adjustment is convenient; the whole device is simple in structure, convenient to use and high in practicability.