CN218718952U

CN218718952U - Double-sealing ball valve with primary and secondary valve seats

Info

Publication number: CN218718952U
Application number: CN202222946871.5U
Authority: CN
Inventors: 方敏; 毛文斌; 王富国
Original assignee: Valve Biwei Valve Co ltd
Current assignee: Valve Biwei Valve Co ltd
Priority date: 2022-11-01
Filing date: 2022-11-01
Publication date: 2023-03-24
Anticipated expiration: 2032-11-01

Abstract

The utility model provides a double containment primary and secondary disk seat ball valve, including disk seat, sealed storehouse, sealed apron, instruction arrow point, first sealed ball valve, second sealed ball valve and total regulation knob, wherein: the middle of disk seat upper surface carries out the integral type with the bottom in sealed storehouse and is connected, and the upper surface in sealed storehouse installs sealed apron through the bolt, and one side of this sealed apron upper surface is provided with the instruction arrow point arch. The utility model discloses during the use, when first sealed ball valve takes place to leak, the sealed ball valve of second can continue to work to guarantee its holistic leakproofness, when the female valve stem of first sealed ball valve and the sealed ball valve of second takes place to rust to die unable rotation phenomenon, can continue to work through sub-valve rod and sub-ball body simultaneously, thereby guarantee holistic normal operating, make its whole more safe and reliable, be convenient for marketing and application.

Description

Double-sealing ball valve with primary and secondary valve seats

Technical Field

The utility model belongs to the ball valve field especially relates to a double containment primary and secondary disk seat ball valve.

Background

The ball valve, the opening and closing piece (ball) is driven by the valve rod and rotates around the axis of the ball valve. The hard seal V-shaped ball valve can also be used for regulating and controlling fluid, wherein a V-shaped ball core of the hard seal V-shaped ball valve and a metal valve seat of the build-up welding hard alloy have strong shearing force, and the hard seal V-shaped ball valve is particularly suitable for media containing fibers, tiny solid particles and the like.

Although there are many different ball valves on the market. However, when the existing ball valve is used, once rusting occurs between the valve rod and the valve seat, the ball body cannot be controlled to be opened and closed, or the sealing property between the valve body and the ball body is poor, so that the leakage problem can occur.

Therefore, the invention of the double-sealing ball valve with the primary and secondary valve seats is very necessary.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a technical scheme that double containment primary and secondary disk seat ball valve adopted does: the utility model provides a double containment primary and secondary disk seat ball valve, includes the disk seat, sealed storehouse, sealed apron, indicates the arrow point, first sealed ball valve, second sealed ball valve and total adjustment knob, wherein: the middle of the upper surface of the valve seat is integrally connected with the bottom end of the sealing bin, the upper surface of the sealing bin is provided with a sealing cover plate through a bolt, and one side of the upper surface of the sealing cover plate is provided with an indication arrow protrusion; the first sealing ball valve and the second sealing ball valve respectively penetrate through the sealing cover plate and the sealing bin, and are embedded at two sides of the middle of the inside of the valve seat in mirror image positions.

The positions of two ends of the surface of the valve seat, which are mirror images, are respectively provided with an integrated external thread inlet and an integrated external thread outlet, and the positions of two sides in the valve seat, which are mirror images, are respectively provided with a first cavity and a second cavity.

The sealed bin comprises a bin body, a first rotating shaft, a first gear, a second gear, a third gear, a second rotating shaft, a fourth gear and a fifth gear, wherein the first rotating shaft is nested in the middle of the interior of the bin body, and the top end of the first rotating shaft is connected with the middle of the bottom surface of the first gear in a nested manner through a bearing; the middle of two sides of the surface of the first gear is in mirror image connection with the second gear and the third gear respectively in a meshed mode, the middle of the bottom surfaces of the second gear and the third gear is in nested connection with the top end of the second rotating shaft through bearings respectively, and the middle of the outer sides of the surfaces of the second gear and the third gear is in meshed connection with the second gear and the third gear respectively.

The first gear, the second gear, the third gear, the fourth gear and the fifth gear are arranged on the same horizontal plane in a straight line shape, and the first gear, the second gear, the third gear, the fourth gear and the fifth gear are all nested in the bin body.

The first sealing ball valve comprises a female valve rod, a female ball body, a cross-shaped through hole, a sub-valve rod, a triangular knob, a sub-ball body and a straight through hole, the bottom end of the female valve rod is integrally connected with the middle of the upper surface of the female ball body, and the middle inside the female ball body is horizontally penetrated and provided with the cross-shaped through hole; the son valve rod is nested in the mother valve rod through the sealing sleeve, the top end of the son valve rod is fixedly connected with the middle of the bottom surface of the triangular knob, the bottom end of the son valve rod is integrally connected with the middle of the upper surface of the son ball body, and the middle of the inside of the son ball body is penetrated through to form a straight through hole.

Compared with the prior art, the utility model has the advantages of:

the utility model discloses the setting of the sealed ball valve of first sealed ball valve and second when being favorable to using, when first sealed ball valve takes place to leak, the sealed ball valve of second can continue to work to guarantee its holistic leakproofness.

When the female valve rod of the first sealed ball valve and the second sealed ball valve generates the phenomenon of rust and rotation failure, the female valve rod can continue to work through the sub-valve rod and the sub-ball body, so that the whole normal operation is ensured, and the whole ball valve is safer and more reliable.

Drawings

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

Fig. 2 is the semi-section structure schematic diagram of the sealed bin of the utility model.

Fig. 3 is a schematic diagram of the whole half-section structure of the utility model.

In the figure:

the sealing device comprises a valve seat 1, an external thread inlet 2, an external thread outlet 3, a first chamber 10, a second chamber 11, a sealing bin 4, a bin body 41, a first rotating shaft 42, a first gear 43, a second gear 44, a third gear 45, a second rotating shaft 46, a fourth gear 47, a fifth gear 48, a sealing cover plate 5, an indication arrow 6, a first sealing ball valve 7, a female valve rod 71, a female ball body 72, a cross through hole 73, a sub valve rod 74, a triangular knob 75, a sub ball body 76, a straight through hole 77, a second sealing ball valve 8 and a general adjusting knob 9.

Detailed Description

In order to make the technical solution of the present invention better understood, the technical solution of the embodiments of the present invention will be clearly and completely described below, 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 shall belong to the protection scope of the present invention.

The invention is further described below with reference to the accompanying drawings:

example one

Referring to fig. 1-3, a double-sealing ball valve with a primary and secondary valve seats comprises a valve seat 1, a sealing bin 4, a sealing cover plate 5, an indication arrow 6, a first sealing ball valve 7, a second sealing ball valve 8 and a general adjusting knob 9, wherein: the middle of the upper surface of the valve seat 1 is integrally connected with the bottom end of the sealing bin 4, the upper surface of the sealing bin 4 is provided with a sealing cover plate 5 through a bolt, and one side of the upper surface of the sealing cover plate 5 is provided with a protrusion of an indicating arrow 6; the first sealing ball valve 7 and the second sealing ball valve 8 respectively penetrate through the sealing cover plate 5 and the sealing bin 4, and are nested at two sides of the middle inside the valve seat 1 in mirror image positions.

In the embodiment, the positions of two ends of the surface of the valve seat 1 which are in mirror image are respectively provided with an integrated external thread inlet 2 and an integrated external thread outlet 3, and the positions of two sides in the valve seat 1 which are in mirror image are respectively provided with a first cavity 10 and a second cavity 11; the external thread inlet 2, the external thread outlet 3, the first chamber 10 and the second chamber 11 are communicated with each other; through the setting of first cavity 10 and second cavity 11, when appearing leaking the phenomenon between first cavity 10 and the first sealed ball valve 7, can continue work between second cavity 11 and the second sealed ball valve 8, when appearing leaking the phenomenon between second cavity 11 and the second sealed ball valve 8, can continue work between first cavity 10 and the first sealed ball valve 7 to guarantee holistic stability and security.

In this embodiment, the sealed cabin 4 includes a cabin body 41, a first rotating shaft 42, a first gear 43, a second gear 44, a third gear 45, a second rotating shaft 46, a fourth gear 47 and a fifth gear 48, wherein the first rotating shaft 42 is nested in the middle of the inside of the cabin body 41, and the top end of the first rotating shaft 42 is nested and connected with the middle of the bottom surface of the first gear 43 through a bearing; the middle parts of the two sides of the surface of the first gear 43 are in mirror image connection with a second gear 44 and a third gear 45 respectively, the middle parts of the bottom surfaces of the second gear 44 and the third gear 45 are in nested connection with the top end of a second rotating shaft 46 through bearings respectively, and the middle parts of the outer sides of the surfaces of the second gear 44 and the third gear 45 are in meshed connection with the second gear 44 and the third gear 45 respectively; the bottom ends of the first rotating shaft 42 and the second rotating shaft 46 are fixedly connected with the upper surface of the valve seat 1 through bolts or welding, the middle of the upper surface of the first gear 43 is connected with the middle of the bottom surface of the main adjusting knob 9 through a rotating shaft in a welding manner, the fourth gear 47 is fixedly embedded above the outer surface of the female valve rod 71 of the first sealing ball valve 7 in a nesting manner, and the fifth gear 48 is fixedly embedded above the outer surface of the female valve rod of the second sealing ball valve 8 in a nesting manner; through the arrangement that the first gear 43, the second gear 44, the third gear 45, the fourth gear 47 and the fifth gear 48 are matched with the main adjusting knob 9, the first sealing ball valve 7 and the second sealing ball valve 8 can be opened or closed through the transmission among the first gear 43, the second gear 44, the third gear 45, the fourth gear 47 and the fifth gear 48 while the main adjusting knob 9 is rotated, so that the sealing ball valve is more convenient and efficient.

In this embodiment, the first sealing ball valve 7 includes a female valve rod 71, a female ball body 72, a cross through hole 73, a sub valve rod 74, a triangular knob 75, a sub ball body 76 and a straight through hole 77, and the bottom end of the female valve rod 71 is integrally connected with the middle of the upper surface of the female ball body 72, and the cross through hole 73 is horizontally formed through the middle inside the female ball body 72; the sub valve rod 74 is nested inside the main valve rod 71 through a sealing shaft sleeve, the top end of the sub valve rod 74 is fixedly connected with the middle of the bottom surface of the triangular knob 75, the bottom end of the sub valve rod 74 is integrally connected with the middle of the upper surface of the sub ball body 76, and a straight through hole 77 is formed in the middle of the inside of the sub ball body 76 in a penetrating mode; the first sealing ball valve 7 and the second sealing ball valve 8 have the same composition structure, the female valve rod 71 is connected with the inside of the valve seat 1 in a nested and sealed mode through a shaft sleeve, and the female ball bodies 72 of the first sealing ball valve 7 and the second sealing ball valve 8 are respectively nested in the first cavity 10 and the second cavity 11; the upper surfaces of the triangular knob 75 and the main adjusting knob 9 are both provided with triangular indicating grooves, and when the triangular grooves on the triangular knob 75 and the main adjusting knob 9 correspond to the indicating arrow 6, the straight through hole 77 and the cross through hole 73 are both opened; when the valve is used, if the rust phenomenon occurs between the main valve rod 71 and the valve seat 1, the sub valve rod 74 can be rotated, so that the straight through hole 77 on the surface of the sub ball body 76 corresponds to or is staggered with the cross through hole 73, and the on-off of the cross through hole 73 can be controlled; meanwhile, under normal conditions, the sub-valve rod 74 can be independently rotated, so that the sub-ball 76 controls the on or off of the valve seat 1; therefore, in an emergency situation, the first sealing ball valve 7 and the second sealing ball valve 8 have double insurance, so that the whole sealing ball valve is safer and more reliable.

Utilize technical scheme, or technical personnel in the field are in the utility model discloses under technical scheme's the inspiration, design similar technical scheme, and reach above-mentioned technological effect, all fall into the utility model discloses a protection scope.

Claims

1. The utility model provides a double containment primary and secondary disk seat ball valve which characterized in that: including disk seat (1), sealed storehouse (4), sealed apron (5), instruction arrow head (6), first sealed ball valve (7), second sealed ball valve (8) and general regulation knob (9), wherein: the middle of the upper surface of the valve seat (1) is integrally connected with the bottom end of the sealing bin (4), a sealing cover plate (5) is mounted on the upper surface of the sealing bin (4) through a bolt, and an indication arrow (6) bulge is arranged on one side of the upper surface of the sealing cover plate (5); the first sealing ball valve (7) and the second sealing ball valve (8) respectively penetrate through the sealing cover plate (5) and the sealing bin (4), and the positions of the first sealing ball valve and the second sealing ball valve are nested on two sides of the middle of the interior of the valve seat (1) in a mirror image mode.

2. The dual seal snap-seat ball valve according to claim 1, wherein: the two ends of the surface of the valve seat (1) are provided with an external thread inlet (2) and an external thread outlet (3) in an integrated mode respectively in mirror-image positions, and a first cavity (10) and a second cavity (11) are arranged in mirror-image positions in the middle of the two sides in the valve seat (1) respectively.

3. The dual seal snap-seat ball valve according to claim 1, wherein: the sealed cabin (4) comprises a cabin body (41), a first rotating shaft (42), a first gear (43), a second gear (44), a third gear (45), a second rotating shaft (46), a fourth gear (47) and a fifth gear (48), wherein the first rotating shaft (42) is nested in the middle of the inside of the cabin body (41), and the top end of the first rotating shaft (42) is nested and connected with the middle of the bottom surface of the first gear (43) through a bearing; the middle parts of the two sides of the surface of the first gear (43) are in mirror image connection with the second gear (44) and the third gear (45) respectively, the middle parts of the bottom surfaces of the second gear (44) and the third gear (45) are in nested connection with the top end of the second rotating shaft (46) through bearings respectively, and the middle parts of the outer sides of the surface of the second gear (44) and the third gear (45) are in meshed connection with the second gear (44) and the third gear (45) respectively.

4. The dual seal snap-seat ball valve according to claim 3, wherein: the first gear (43), the second gear (44), the third gear (45), the fourth gear (47) and the fifth gear (48) are arranged on the same horizontal plane in a straight line shape, and the first gear (43), the second gear (44), the third gear (45), the fourth gear (47) and the fifth gear (48) are all nested in the bin body (41).

5. The dual seal snap-seat ball valve according to claim 1, wherein: the first sealing ball valve (7) comprises a mother valve rod (71), a mother ball body (72), a cross through hole (73), a child valve rod (74), a triangular knob (75), a child ball body (76) and a straight through hole (77), the bottom end of the mother valve rod (71) is integrally connected with the middle of the upper surface of the mother ball body (72), and the cross through hole (73) penetrates through the middle of the interior of the mother ball body (72) in a horizontal shape; the sub-valve rod (74) is nested in the main valve rod (71) through a sealing sleeve, the top end of the sub-valve rod (74) is fixedly connected with the middle of the bottom surface of the triangular knob (75), the bottom end of the sub-valve rod (74) is integrally connected with the middle of the upper surface of the sub-ball body (76), and a straight through hole (77) is formed in the middle of the inner portion of the sub-ball body (76).