CN217633977U

CN217633977U - Sanitary three-piece ball valve

Info

Publication number: CN217633977U
Application number: CN202221472123.1U
Authority: CN
Inventors: 胡傲雷; 张茜茜; 胡云蕾; 胡良飞
Original assignee: Wenzhou Yihu Industrial Co ltd
Current assignee: Wenzhou Yihu Industrial Co ltd
Priority date: 2022-06-11
Filing date: 2022-06-11
Publication date: 2022-10-21
Anticipated expiration: 2032-06-11

Abstract

The utility model discloses a three slice formula ball valves of sanitary-grade, which comprises a valve body, the inside tight device that rises that is equipped with of valve body, the tight device that rises includes elasticity tight hoop and the tight groove of V type that rises, the tight groove setting of V type that rises perhaps between disk seat ring and the valve body on disk seat ring lateral wall, elasticity tight hoop cover that rises is established on the disk seat ring, elasticity rises tight hoop inboard be equipped with the V type tight groove gomphosis that rises the tight piece that rises of V type, elasticity rises and is equipped with the hoop mouth on the tight hoop, threaded connection has double threaded screw between the hoop mouth both ends, is equipped with alternating axis drive mechanism between double threaded screw and the valve rod. The utility model discloses a tight mechanism that rises can make the elasticity rise when the valve is closed and tightly tie inboard V type tight piece embedding V type tight groove that rises, transversely struts the disk seat ring, keeps the leakproofness between disk seat ring and the ball core, improves the life of valve, and when the valve was opened, elasticity rises tight hoop and tightly draws the V type tight piece that rises and leaves the V type tight groove that rises for when ball valve turning handle, open the moment of torsion and reduce, the valve was opened laborsavingly.

Description

Sanitary three-piece ball valve

Technical Field

The utility model relates to a ball valve technical field especially relates to three formula ball valves of sanitary-grade.

Background

The three-piece ball valve has the main function of cutting off or connecting a fluid channel in a pipeline and has wide function in the field of marine valves. Most of the existing three-piece ball valve sealing seats are embedded into the valve body, the sealing seats are in close contact with the valve body, and the valve is difficult to open and close. After the ball valve is opened and closed for a long time, because the sealing seat of the ball valve is in close contact with the valve body, the sealing seat and the ball body are easy to abrade to generate a gap, so that the sealing performance of the valve is reduced, and the problem of internal leakage of the valve is caused.

SUMMERY OF THE UTILITY MODEL

The utility model discloses solve the problem that above-mentioned prior art exists, provide three formula ball valves of sanitary-grade, have advantages such as the valve is opened laborsavingly, long service life.

The utility model provides a technical scheme that its technical problem adopted: sanitary-grade three-piece ball valve, including the valve body, the inside ball core that is equipped with of valve body is equipped with the valve opening on the ball core, and both sides respectively are equipped with a disk seat ring about the ball core, the valve rod is installed in the sealed rotation in top on the valve body, and the valve rod lower extreme is connected with the ball core, the upper end of valve rod is connected with the handle, the inside tight device that rises that is equipped with of valve body, the tight device that rises includes elasticity tight hoop and the tight groove of V type that rises, the tight groove setting that rises of V type is perhaps between disk seat ring and valve body on the disk seat ring lateral wall, elasticity tight hoop cover that rises is established on the disk seat ring, elasticity rises tight hoop inboard be equipped with the tight piece that rises of V type tight groove gomphosis that rises, be equipped with the hoop mouth on the tight hoop of elasticity, threaded connection has double-thread screw between the hoop mouth both ends, is equipped with crisscross axle drive mechanism between double-end screw and the valve rod.

In order to further improve, the staggered shaft transmission mechanism is a chain transmission mechanism and comprises a chain, a driving chain wheel and a driven chain wheel, the driving chain wheel and the driven chain wheel are respectively and fixedly installed on the valve rod and the double-end screw rod, and the driving chain wheel and the driven chain wheel are connected through the chain.

Further perfection, the staggered shaft transmission mechanism is a worm and worm gear transmission mechanism and comprises a first worm, a first worm gear, a second worm and a second worm gear, the first worm and the first worm gear are fixedly installed on the valve rod and the second worm respectively, the first worm is meshed with the first worm gear, two ends of the second worm are rotatably connected with the valve body, the second worm gear is fixedly installed on the double-end screw, and the second worm is meshed with the second worm gear.

Further perfecting, the staggered shaft transmission mechanism is a bevel gear transmission mechanism and comprises a transmission shaft, a first driving bevel gear, a first driven bevel gear, a second driving gear and a second driven gear, wherein the transmission shaft is rotatably installed on the valve body, the two ends of the transmission shaft are respectively and fixedly provided with the first driven bevel gear and the second driving gear, the first driving bevel gear is fixedly installed on the valve rod, the first driving bevel gear is meshed with the first driven bevel gear, the second driven bevel gear is fixedly installed on the double-end screw rod, and the second driven bevel gear is meshed with the second driving gear.

Further perfection, the bottom of ball core is equipped with the location vertical axis, and the lower extreme of location vertical axis sets up the location bearing, and location bearing fixed mounting is on the slider, slider and the transverse guide sliding connection who sets up in the valve body bottom.

The utility model discloses profitable effect is: the utility model discloses a tight mechanism that rises can make the elasticity rise when the valve is closed and tightly tie inboard V type tight piece embedding V type of rising and tightly rise the groove, transversely strut the disk seat ring, keep the leakproofness between disk seat ring and the ball core, improve the life of valve, when the valve is opened, elasticity rises tight hoop and pulls the tight piece that rises of V type away from the V type tight groove that rises, provides the space of letting back for the disk seat ring for when ball valve turning handle, open the moment of torsion and reduce, the valve is opened more laborsavingly.

Drawings

FIG. 1 is a schematic view of the present invention;

description of reference numerals: 1. the valve comprises a valve body, 2, a ball core, 3, a valve seat ring, 4, a valve rod, 5, a handle, 6, an elastic tensioning hoop, 7 and a V-shaped tensioning groove, 8 and a V-shaped tensioning block, 9 and a double-headed screw, 10 and a chain, 11 and a driving sprocket, 12 and a driven sprocket, 13 and a positioning vertical shaft, 14 and a positioning bearing, 15 and a transverse guide rail, 16 and a sliding block.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings:

sanitary three-piece ball valve in this embodiment, including valve body 1, the inside ball core 2 that is equipped with of valve body 1 is equipped with the valve opening on the ball core 2, and both sides respectively are equipped with a valve seat ring 3 about the ball core 2, the sealed rotation of top installs valve rod 4 on valve body 1, and the lower extreme of valve rod 4 is connected with ball core 2, the upper end of valve rod 4 is connected with handle 5, the inside tight device that rises that is equipped with of valve body 1, tight device that rises include elasticity tight hoop 6 and the V type tight groove 7 that rises, V type tight groove 7 that rises sets up on valve seat ring 3 lateral wall or between valve seat ring 3 and valve body 1, elasticity rises tight hoop 6 cover and establishes on valve seat ring 3, elasticity rises tight hoop 6 inboard and is equipped with the V type tight groove 7 gomphosis that rises tight piece 8 that rises with V type, be equipped with the hoop mouth on the tight hoop that rises of elasticity is equipped with, threaded connection has double-headed screw 9 between the hoop mouth both ends, is equipped with alternating axis drive mechanism between double-headed screw 9 and the valve rod 4. In the process of closing the valve by rotating the valve rod 4, the valve rod 4 drives the double-threaded screw rod 9 to rotate forward through the staggered shaft transmission mechanism, under the action of threads at two ends, the hooping of the elastic tensioning hoop 6 is contracted, the elastic tensioning hoop 6 is contracted to enable the V-shaped tensioning block 62 to be embedded into the V-shaped tensioning groove 7 of the valve seat ring, so that the valve seat ring 3 is expanded in transverse elastic deformation, the valve body and the ball core are compressed, and the sealing performance of the valve is enhanced. In the process of opening the valve by rotating the valve rod 4, the valve rod 4 drives the double-headed screw 9 to rotate reversely through the staggered shaft transmission mechanism, under the action of threads at two ends, the hooping of the elastic tensioning hoop 6 is expanded, the shape of the elastic tensioning hoop 6 is enlarged, so that the V-shaped tensioning block 62 slightly slides and separates from the V-shaped tensioning groove 7, the elasticity of the valve seat ring 3 is enhanced, a yielding space is provided for the valve seat ring, the pressing force on the valve body and the ball core is reduced, the ball core rotates more smoothly, and the valve is opened more labor-saving.

As shown in fig. 1, the staggered shaft transmission mechanism is a chain transmission mechanism, and includes a chain 10, a driving sprocket 11 and a driven sprocket 12, the driving sprocket 11 and the driven sprocket 12 are respectively and fixedly mounted on the valve rod 4 and the double-thread screw 9, and the driving sprocket 11 and the driven sprocket 12 are connected by the chain 10. When the valve rod 4 rotates, the double-end screw 9 is driven to rotate by the driving chain wheel 11, the chain 10 and the driven chain wheel 12, so that the elastic tensioning hoop 6 is clamped and loosened.

The bottom of the ball core 2 is provided with a positioning vertical shaft 13, the lower end of the positioning vertical shaft 13 is provided with a positioning bearing 14, the positioning bearing 14 is fixedly arranged on a sliding block 16, and the sliding block 16 is in sliding connection with a transverse guide rail 15 arranged at the bottom of the valve body 1. The vertical shaft 13 for the location provides the support for the ball core 2, keeps the height of the ball core 2 certain, is difficult to produce between the ball core 2 and the valve rod 4 and becomes flexible, balances the gravity of the ball core 2, and makes the ball core 2 difficult to drop and causes the valve seat ring downside to appear great wearing and tearing. The positioning bearing 14 can make the rotation between the slider 16 and the positioning vertical shaft 13 smoother. The sliding block 16 and the transverse guide rail 15 are slidably connected to limit the movement of the core 2, so that the core 2 can only slightly move transversely, and the matching consistency of the core 2 and the valve seat ring is ensured.

The second staggered shaft transmission mechanism embodiment is a worm and gear transmission mechanism, which comprises a first worm, a first worm gear, a second worm and a second worm gear, wherein the first worm and the first worm gear are respectively and fixedly mounted on the valve rod 4 and the second worm, the first worm is meshed with the first worm gear, two ends of the second worm are rotatably connected with the valve body 1, the second worm gear is fixedly mounted on the double-thread screw 9, and the second worm is meshed with the second worm gear. The valve rod 4 drives the first worm to rotate when rotating, drives the first worm wheel and the second worm to rotate, and the second worm rotates and drives the second worm wheel and the double-thread screw 9 to rotate, so that the elastic tensioning hoop 6 is clamped and loosened.

The third staggered shaft transmission mechanism is a bevel gear transmission mechanism and comprises a transmission shaft, a first driving bevel gear, a first driven bevel gear, a second driving gear and a second driven gear, wherein the transmission shaft is rotatably installed on the valve body 1, the two ends of the transmission shaft are respectively and fixedly provided with the first driven bevel gear and the second driving gear, the first driving bevel gear is fixedly installed on the valve rod 4, the first driving bevel gear is meshed with the first driven bevel gear, the second driven bevel gear is fixedly installed on the double-head screw 9, and the second driven bevel gear is meshed with the second driving gear. The rotation of valve rod 4 is converted into double-end screw 9 through first initiative bevel gear, first driven bevel gear, transmission shaft, second driving gear and second driven gear and rotates, realizes that elasticity rises to tighten the hoop 6 and cramp and the pine takes off control.

While the invention has been shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the scope of the appended claims.

Claims

1. Sanitary-grade three-piece ball valve, including valve body (1), valve body (1) inside is equipped with ball core (2), is equipped with the valve opening on ball core (2), and both sides respectively are equipped with a disk seat ring (3) about ball core (2), valve body (1) is gone up the sealed rotation in top and is installed valve rod (4), and valve rod (4) lower extreme is connected with ball core (2), the upper end of valve rod (4) is connected with handle (5), its characterized in that: the valve body (1) is internally provided with a tensioning device, the tensioning device comprises an elastic tensioning hoop (6) and a V-shaped tensioning groove (7), the V-shaped tensioning groove (7) is formed in the side wall of the valve seat ring (3) or between the valve seat ring (3) and the valve body (1), the elastic tensioning hoop (6) is sleeved on the valve seat ring (3), a V-shaped tensioning block (8) embedded with the V-shaped tensioning groove (7) is arranged on the inner side of the elastic tensioning hoop (6), a hoop opening is formed in the elastic tensioning hoop (6), a double-headed screw (9) is connected between the two ends of the hoop opening in a threaded manner, and a staggered shaft transmission mechanism is arranged between the double-headed screw (9) and the valve rod (4).

2. The sanitary grade three-piece ball valve according to claim 1, wherein: the staggered shaft transmission mechanism is a chain transmission mechanism and comprises a chain (10), a driving chain wheel (11) and a driven chain wheel (12), the driving chain wheel (11) and the driven chain wheel (12) are fixedly installed on the valve rod (4) and the double-thread screw (9) respectively, and the driving chain wheel (11) and the driven chain wheel (12) are connected through the chain (10).

3. The sanitary three-piece ball valve of claim 1, wherein: the staggered shaft transmission mechanism is a worm and worm gear transmission mechanism and comprises a first worm, a first worm gear, a second worm and a second worm gear, wherein the first worm and the first worm gear are fixedly installed on the valve rod (4) and the second worm respectively, the first worm is meshed with the first worm gear, two ends of the second worm are rotatably connected with the valve body (1), the second worm gear is fixedly installed on the double-end screw (9), and the second worm is meshed with the second worm gear.

4. The sanitary grade three-piece ball valve according to claim 1, wherein: the staggered shaft transmission mechanism is a bevel gear transmission mechanism and comprises a transmission shaft, a first driving bevel gear, a first driven bevel gear, a second driving gear and a second driven gear, wherein the transmission shaft is rotatably installed on the valve body (1), the two ends of the transmission shaft are respectively and fixedly provided with the first driven bevel gear and the second driving gear, the first driving bevel gear is fixedly installed on the valve rod (4), the first driving bevel gear is meshed with the first driven bevel gear and is connected with the first driven bevel gear, the second driven bevel gear is fixedly installed on the double-end screw (9), and the second driven bevel gear is meshed with the second driving gear and is connected with the second driven gear.

5. The sanitary grade three-piece ball valve according to claim 1, wherein: the bottom of ball core (2) is equipped with location vertical axis (13), and the lower extreme of location vertical axis (13) sets up location bearing (14), and location bearing (14) fixed mounting is on the slider, slider and the transverse guide (15) sliding connection who sets up in valve body (1) bottom.