CN209925637U

CN209925637U - Rotary ball valve

Info

Publication number: CN209925637U
Application number: CN201920392095.4U
Authority: CN
Inventors: 陈建通; 陈奕豪
Original assignee: Zhejiang Taixing Valve Co Ltd
Current assignee: Zhejiang Taixing Valve Co Ltd
Priority date: 2019-03-26
Filing date: 2019-03-26
Publication date: 2020-01-10
Anticipated expiration: 2029-03-26

Abstract

The utility model discloses a spin valve, including spin valve body, the front surface welding of spin valve body has the flange, and one side embedding of spin valve body installs flow display, there is the support at the top of second dead lever through bolt fixed mounting, the flowmeter is installed in the inner wall embedding of spin valve body, and runs through the inside of spin valve body and be provided with the valve rod, the outer wall fixed mounting of valve rod has the case, the disk seat gland is installed in the inside embedding of flange, the rear side of disk seat gland is provided with the disk seat. Through the setting of prevention of seepage board, can be when liquid strikes the disk seat, the floating ring can not make liquid infiltration put the disk seat when carrying out the displacement in, improve the life-span of disk seat, overhaul the disk seat through the dismantlement convenience to the disk seat gland, through the setting of flowmeter, discovery that can be timely when the flow is unusual appears to stop the use to the ball-cock assembly body, maintain the maintenance to the ball-cock assembly body.

Description

Rotary ball valve

Technical Field

The utility model relates to a ball valve technical field specifically is a ball valve revolves.

Background

The rotary ball valve has the functions and advantages of a butterfly valve, a half-ball valve, a gate valve and a stop valve, and has the powerful functions and advantages which are completely distinctive. Small volume, light weight, convenient transportation, installation, maintenance and repair and reliable operation. The main characteristic of the rotary ball valve is that the rotary ball valve can be reliably closed not only in the forward pressure, but also in the reverse pressure or the reverse pressure which is far greater than the forward pressure. The center can be automatically aligned, and the abrasion can be automatically compensated by overrun. When the rotary ball valve is closed, the energy of the medium in the rotary ball valve is fully utilized, and the extremely high sealing specific pressure is automatically applied, so that the high-hardness sealing pair achieves reliable zero leakage. And no friction exists between the sealing pair which is closed instantly and opened instantly. The main body structure of the rotary ball valve is similar to a butterfly valve, and the rotary ball valve has the characteristics of short structure and small volume of the butterfly valve, so that the valve with super-large caliber and super-large caliber can be manufactured.

However, the valve seat on the existing rotary ball valve is easy to enter liquid in the using process, so that internal components are damaged and are difficult to replace, and in addition, the flat valve core impacted by the liquid is easy to accelerate the abrasion of the valve core, so that the service life of the rotary ball valve is influenced, the flow cannot be effectively monitored, and the rotary ball valve is difficult to maintain by finding out the fault of the rotary ball valve. Accordingly, those skilled in the art have provided a rotary ball valve to solve the problems set forth in the background art described above.

Disclosure of Invention

An object of the utility model is to provide a ball-rotating valve to solve the problem that proposes among the above-mentioned background art.

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

the utility model provides a spin valve, includes the spin valve body, the front surface welding of spin valve body has the flange, and the bottom welding of spin valve body has first dead lever, there is the back lid bottom of first dead lever through bolt fixed mounting, the top welding of spin valve body has the second dead lever, and one side embedding of spin valve body installs flow display, there is the support at the top of second dead lever through bolt fixed mounting, the flowmeter is installed in the inner wall embedding of spin valve body, and runs through being provided with the valve rod in the inside of spin valve body, the outer wall fixed mounting of valve rod has the case, the disk seat gland is installed in the inside embedding of flange, and the front surface of flange has seted up the second screw, the rear side of disk seat gland is provided with the disk seat, and the first screw has been seted up to the front surface of disk seat gland.

As a further aspect of the present invention: the bottom welding of case has wear-resisting sealed piece, and one side of case is circular-arc.

As a further aspect of the present invention: the support comprises an operation hand wheel, a worm gear head and a sealing rubber ring, the sealing rubber ring is fixedly installed at the bottom of the support through bolts, the worm gear head is fixedly installed at the top of the support through bolts, and the operation hand wheel is rotatably connected to the front surface of the worm gear head.

As a further aspect of the present invention: the valve seat comprises a floating ring, an anti-seepage plate and a spring, the floating ring is embedded in the top of the valve seat, the spring is fixedly installed at the position, close to one side of the floating ring, of the top of the valve seat, and the anti-seepage plate is embedded in one side of the floating ring.

As a further aspect of the present invention: the top of the valve rod penetrates through the inside of the support, and the bottom of the valve rod penetrates through the inside of the first fixing rod.

As a further aspect of the present invention: the seepage-proof plates are arranged in two numbers, and the seepage-proof plates are symmetrically distributed on two sides of the floating ring.

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

1. through the setting of prevention of seepage board, can be when liquid strikes the disk seat, the floating ring can not make liquid infiltration put in the disk seat when carrying out the displacement to avoid inside parts to suffer the corruption, improve the life-span of disk seat, overhaul the disk seat through the dismantlement convenience to the disk seat gland.

2. Through the setting of flowmeter, can monitor this internal liquid flow of ball-spinning valve, discovery that can be timely when the flow is unusual appears to stop the use to the ball-spinning valve body, maintain the ball-spinning valve body and overhaul, thereby can avoid the damage of ball-spinning valve body to cause bigger loss.

3. Through the setting of case, slow down the wearing and tearing of case and disk seat under the effect of wear-resisting sealing block to convex case can increase this spin valve body shock resistance, thereby can increase the life of this spin valve body.

Drawings

FIG. 1 is a schematic structural view of a rotary ball valve;

FIG. 2 is a schematic structural diagram of a valve core installation in a rotary ball valve;

fig. 3 is an enlarged view of a portion a in fig. 2.

In the figure: 1. a ball valve body; 2. a flow display; 3. a first fixing lever; 4. a flange; 5. a valve seat gland; 6. a valve seat; 7. a valve core; 8. a support; 9. operating a hand wheel; 10. a worm gear head; 11. a second fixing bar; 12. a flow meter; 13. a wear-resistant seal block; 14. a floating ring; 15. an impermeable plate; 16. a spring; 17. a first screw hole; 18. a second screw hole; 19. sealing the rubber ring; 20. a valve stem; 21. and (7) a rear cover.

Detailed Description

Referring to fig. 1 to 3, in an embodiment of the present invention, a spin valve includes a spin valve body 1, a flange 4 welded to a front surface of the spin valve body 1, and the bottom of the spin valve body 1 is welded with a first fixed rod 3, the bottom of the first fixed rod 3 is fixedly provided with a rear cover 21 through a bolt, the top of the spin valve body 1 is welded with a second fixed rod 11, and one side of the rotary ball valve body 1 is embedded with a flow display 2, the inner wall of the rotary ball valve body 1 is embedded with a flow meter 12, the model of the flow meter 12 is LZS-65, through the arrangement of the flowmeter 12, the liquid flow in the rotary ball valve body 1 can be monitored, can find out the abnormal flow in time so as to stop using the rotary ball valve body 1, the rotary ball valve body 1 is maintained and overhauled, so that the damage to the rotary ball valve body 1 can be avoided, and greater loss is caused.

The top of the second fixing rod 11 is fixedly provided with a support 8 through a bolt, the support 8 comprises an operation hand wheel 9, a worm gear head 10 and a sealing rubber ring 19, the bottom of the support 8 is fixedly provided with the sealing rubber ring 19 through a bolt, the top of the support 8 is fixedly provided with the worm gear head 10 through a bolt, the front surface of the worm gear head 10 is rotatably connected with the operation hand wheel 9, the inside of the spin ball valve body 1 is provided with a valve rod 20 in a penetrating manner, the top of the valve rod 20 is arranged in the support 8 in a penetrating manner, the bottom of the valve rod 20 is arranged in the first fixing rod 3 in a penetrating manner, the outer wall of the valve rod 20 is fixedly provided with a valve core 7, the bottom of the valve core 7 is welded with a wear-resistant sealing block 13, one side of the valve core 7 is arc-shaped, the wear between the valve core 7 and the valve seat 6 is reduced under the action of the wear, thereby increasing the service life of the spin valve body 1.

A valve seat gland 5 is embedded in the flange 4, a second screw hole 18 is arranged on the front surface of the flange 4, a valve seat 6 is arranged on the rear side of the valve seat gland 5, the front surface of the valve seat gland 5 is provided with a first screw hole 17, the valve seat 6 comprises a floating ring 14, an anti-seepage plate 15 and a spring 16, the top of the valve seat 6 is embedded with the floating ring 14, and a spring 16 is fixedly arranged at the position of the top of the valve seat 6 close to one side of the floating ring 14, an anti-seepage plate 15 is embedded and arranged at one side of the valve seat 6, the anti-seepage plates 15 are arranged in two, the anti-seepage plates 15 are symmetrically distributed at two sides of the floating ring 14, by arranging the anti-seepage plate 15, when liquid impacts the valve seat 6, the floating ring 14 can displace without the liquid permeating the valve seat 6, thereby avoid inside parts to suffer the corruption, improve the life-span of disk seat 6, overhaul disk seat 6 through the dismantlement convenience to disk seat gland 5.

The utility model discloses a theory of operation is: firstly, when the rotary ball valve body 1 is closed by using the valve core 7, after water flows through a water pipe, liquid in the water pipe can impact the valve core 7 and the valve seat 6, the floating ring 14 is attached to the valve core 7 more tightly under the action of hydraulic pressure under the action of the spring 16, leakage of the liquid is prevented, when the floating ring 14 moves, the anti-seepage plate 15 can obstruct the liquid, corrosion and damage of components such as the spring 16 and the like caused by the fact that the liquid flows into the valve seat 6 are avoided, through the arrangement of the anti-seepage plate 15, when the liquid impacts the valve seat 6, the liquid cannot permeate into the valve seat 6 when the floating ring 14 displaces, so that corrosion of internal components is avoided, the service life of the valve seat 6 is prolonged, the valve seat gland 5 is taken out through a bolt after the valve seat 6 is damaged, the valve seat 6 is convenient to overhaul through the disassembly of the valve seat gland 5, and then the operating hand wheel 9 is rotated to drive, the valve core 7 is opened, the wear-resistant sealing block 13 at the bottom of the valve core 7 rubs with the floating ring 14, the wear of the valve core 7 and the valve seat 6 is slowed down under the action of the wear-resistant sealing block 13 through the arrangement of the valve core 7, the shock resistance of the rotary ball valve can be improved through the arc-shaped valve core 7, the service life of the rotary ball valve body 1 can be prolonged, finally, when liquid flows in the rotary ball valve body 1, the flow of the liquid is measured under the action of the flow meter 12, the flow is observed through the flow display 2, the rotary ball valve body 1 can be timely found when the flow is abnormal, the rotary ball valve body 1 is stopped to be used, the liquid flow in the rotary ball valve body 1 can be monitored through the arrangement of the flow meter 12, the flow can be timely found when the flow is abnormal, the rotary ball valve body 1 is stopped to be used, and the rotary ball valve body 1 is maintained and overhauled, damage to the spin valve body 1 and thus greater losses can be avoided.

Claims

1. A rotary ball valve comprises a rotary ball valve body (1) and is characterized in that a flange (4) is welded on the front surface of the rotary ball valve body (1), a first fixing rod (3) is welded at the bottom of the rotary ball valve body (1), a rear cover (21) is fixedly installed at the bottom of the first fixing rod (3) through bolts, a second fixing rod (11) is welded at the top of the rotary ball valve body (1), a flow display (2) is installed at one side of the rotary ball valve body (1) in an embedded mode, a support (8) is fixedly installed at the top of the second fixing rod (11) through bolts, a flow meter (12) is installed on the inner wall of the rotary ball valve body (1) in an embedded mode, a valve rod (20) penetrates through the inside of the rotary ball valve body (1), a valve core (7) is fixedly installed on the outer wall of the valve rod (20), a valve seat gland (5) is installed on the flange (, and the front surface of the flange (4) is provided with a second screw hole (18), the rear side of the valve seat gland (5) is provided with a valve seat (6), and the front surface of the valve seat gland (5) is provided with a first screw hole (17).

2. The rotary ball valve according to claim 1, characterized in that a wear-resistant sealing block (13) is welded on the bottom of the valve core (7), and one side of the valve core (7) is arc-shaped.

3. The rotary ball valve as claimed in claim 1, wherein the support (8) comprises an operating hand wheel (9), a worm gear head (10) and a sealing rubber ring (19), the sealing rubber ring (19) is fixedly installed at the bottom of the support (8) through a bolt, the worm gear head (10) is fixedly installed at the top of the support (8) through a bolt, and the operating hand wheel (9) is rotatably connected to the front surface of the worm gear head (10).

4. The rotary ball valve is characterized in that the valve seat (6) comprises a floating ring (14), an anti-seepage plate (15) and a spring (16), the floating ring (14) is embedded and mounted at the top of the valve seat (6), the spring (16) is fixedly mounted at the position, close to one side of the floating ring (14), of the top of the valve seat (6), and the anti-seepage plate (15) is embedded and mounted at one side of the valve seat (6).

5. A rotary ball valve according to claim 1, wherein the top of the valve stem (20) extends through the interior of the bracket (8) and the bottom of the valve stem (20) extends through the interior of the first fixed rod (3).

6. A spin-ball valve according to claim 4, characterized in that there are two said anti-seepage plates (15), and the anti-seepage plates (15) are symmetrically distributed on both sides of the floating ring (14).