CN218761559U

CN218761559U - Valve rod blowout prevention ball valve

Info

Publication number: CN218761559U
Application number: CN202223344109.6U
Authority: CN
Inventors: 潘修文; 邵璐璐; 刘跃峰; 温华桉
Original assignee: Teer Valve High Technology Co ltd
Current assignee: Teer Valve High Technology Co ltd
Priority date: 2022-12-13
Filing date: 2022-12-13
Publication date: 2023-03-28
Anticipated expiration: 2032-12-13

Abstract

The utility model relates to a ball valve is prevented blowing off by valve rod, including valve body, valve body left and right sides both ends all fixedly connected with side body, set up in the inboard spheroid of valve body, connect the valve rod of spheroid upper end, the worm gear case of being connected with the valve rod transmission and set up the hand wheel on the worm gear case, open on spheroid upper end right side has the spout, valve rod lower extreme fixedly connected with stopper, stopper sliding connection is inboard at the spout, the stopper can drive the spheroid and rotate, open on the valve body upper end has the mounting hole, it is equipped with the spacing hole of opening on the valve body to go up the mounting hole lower extreme, stopper sliding connection is inboard at spacing hole, the stopper size is greater than the mounting hole size, both ends all are equipped with the disk seat about the spheroid, the side body is close to valve body one end and opens there is the shoulder hole, the disk seat is installed inboard at the shoulder hole, prevent blowing off the boss through seting up spacing hole constitution in the valve body upper end, the valve rod adopts the lower dress formula, when the upper cover, the packing clamp plate, when the connection pad is demolishd, the valve rod receives the pressure influence and can not fly off owing to prevent the boss, use safe and reliable.

Description

Valve rod blowout prevention ball valve

Technical Field

The utility model relates to a ball valve field especially relates to a valve rod prevents blowing off ball valve.

Background

The utility model with application number of CN201720344458.8 discloses a high-pressure ball valve, which comprises a valve seat, a left valve body, a right valve body, a spherical valve core, a valve rod, a worm gear case and an adjusting disc, wherein the left valve body and the right valve body are connected with the valve seat; a left bushing is arranged between the left valve body and the spherical valve core, a right bushing is arranged between the right valve body and the spherical valve core, a support is arranged at the top of the valve seat, the valve rod penetrates through the support to be connected with the spherical valve core, and the worm gear box is installed on the support. Above-mentioned technical scheme passes through the support and fixes the valve rod, and after the valve rod department takes place to leak, the field area that can't realize the sealing member is pressed and is changed, mainly because when demolising the support after, the valve rod can be ejecting by the inside medium pressure of valve body, light then the valve rod can't be installed back after being ejected, then endanger operating personnel's safety seriously.

SUMMERY OF THE UTILITY MODEL

The utility model discloses solve the problem that above-mentioned prior art exists, provide a valve rod and prevent blowing off ball valve, prevent blowing off the boss through seting up spacing hole constitution in the valve body upper end, the valve rod adopts the lower dress formula, and when the upper cover, the clamp plate that packs, when the connection pad was demolishd, the valve rod received the pressure influence owing to prevent blowing off the boss and can not the departure.

The utility model provides a technical scheme that its technical problem adopted: the valve rod blowout prevention ball valve comprises a valve body, a side body fixedly connected to the left end and the right end of the valve body, a ball body arranged on the inner side of the valve body, a valve rod connected to the upper end of the ball body, a worm gear box connected with the valve rod in a transmission mode and a hand wheel arranged on the worm gear box, wherein a sliding groove is formed in the right side of the upper end of the ball body, a limiting block is fixedly connected to the lower end of the valve rod and is connected to the inner side of the sliding groove, the limiting block is connected to the inner side of the sliding groove in a sliding mode and can drive the ball body to rotate, an upper mounting hole is formed in the upper end of the valve body, a limiting hole formed in the valve body is formed in the lower end of the upper mounting hole, the limiting block is connected to the inner side of the limiting hole in a sliding mode, the size of the limiting block is larger than that of the mounting hole, valve seats are arranged at the left end and the right end of the ball body, stepped holes are formed in the positions, a blowout prevention boss is affected by pressure when the upper cover, the packing pressing plate and the connecting disc is removed, the valve rod cannot fly out due to the blowout prevention boss, the valve seats are arranged safely and are arranged, so that the stability of the ball valve is higher and the service life is longer.

For further perfection, the valve body lower extreme is opened there is lower mounting hole, and the sliding connection has the lower cover in the lower mounting hole, and lower cover fixed connection is at the valve body lower extreme, and the spheroid lower extreme is opened there is the locating hole, and the lower cover is located the locating hole inboard, and the lower cover is connected with the spheroid through lubricated bearing down for spheroidal rotation effect is better, and spheroidal location effect is better, and the life-span is longer.

Further perfect, valve body upper end fixedly connected with upper cover, the valve rod is located the upper cover inboard, and the valve rod passes through lubricated bearing and is connected with the upper cover for the rotation effect of valve rod is better, and life is longer.

Further perfect, the filler is installed to the upper end of the upper lubrication bearing, the filler pressure plate is installed to the upper end of the filler, the connection disc is fixedly connected to the upper end of the upper cover, the filler pressure plate is clamped on the inner side of the connection disc, and the worm gear box is fixedly connected to the upper end of the connection disc, so that the sealing performance of the ball valve is better.

Further perfect, the disk seat is close to spheroid one end fixedly connected with inlay ring, and through inlay ring and spheroid contact, inlay ring resistance to compression is corrosion-resistant for the stability of ball valve is higher, and life is longer.

Further perfect, the side body is close to valve body one end and opens the even hole of placing of a plurality of equidistance, places the downthehole side and installs cylindrical spring, and cylindrical spring contacts with the disk seat for the contact of spheroid and disk seat is inseparabler, makes the leakproofness of ball valve better.

Further perfection, the valve seat is kept away from spheroid one end fixedly connected with clamping ring for the life of valve seat is longer.

Further perfect, the fire prevention circle is installed in the disk seat outside, and the spheroid is kept away from to the fire prevention circle has singly to be equipped with the two-way pressure type lip seal group of installing in the disk seat outside for the fire prevention effect of disk seat is better, and sealed effect is better.

Further perfect, the stopper upper end is installed the thrust gasket, and the lower cover upper end is equipped with the lower thrust gasket of installing at the locating hole inboard, avoids lower cover and valve rod to cause the damage for the life of ball valve is longer.

Further perfect, the valve rod outside is equipped with the last lip-shaped sealing washer of installing on the valve body, and the valve rod outside is equipped with the O type circle of installing on the upper cover for the leakproofness of ball valve is better.

Further perfect, the lower cover outside is equipped with the lower lip shape sealing washer of installing on the valve body, and the side external side is equipped with the side lip shape sealing washer of installing on the valve body for the leakproofness of ball valve is better.

Further perfect, both ends are equipped with the first seal gasket of installing on the valve body with the side body contact department about the valve body, and upper cover lower extreme is equipped with the second seal gasket of installing on the upper cover with the valve body contact department, and the valve body lower extreme is equipped with the third seal gasket of installing on the lower cover with the lower cover contact department for the leakproofness of ball valve is better.

Further perfect, static spring down is installed to the lower cover upper end, and stopper lower extreme fixedly connected with installation axle, and installation axle sliding connection is inboard at the spout, and static spring is installed to the installation axle lower extreme, can satisfy the needs of preventing static fire prevention under some operating modes of user.

Further perfect, side body upper end fixedly connected with lug, side body lower extreme fixedly connected with stabilizer blade for the ball valve uses more conveniently.

Further perfection, the valve body is provided with a sewage and steam exhaust port, a discharge blind plate is arranged on the inner side of the sewage and steam exhaust port, the discharge blind plate is fixedly connected to the valve body through a stud nut, and a fourth sealing gasket is arranged on the outer side of the discharge blind plate.

Further perfected, the filler can be asbestos fabrics, carbon fibers, rubber, flexible graphite, engineering plastics and the like.

The utility model discloses profitable effect is: the anti-blowout boss is formed by arranging the limiting hole in the upper end of the valve body, the valve rod adopts a lower mounting mode, when the upper cover, the packing press plate and the connecting disc are detached, the valve rod is influenced by pressure and cannot fly out due to the anti-blowout boss, the ball valve is safe and reliable to use, the valve seat is arranged, the ball valve is higher in stability and longer in service life, the spherical rotating effect is better due to the design of the lower cover, and the spherical positioning effect is better and longer in service life.

Drawings

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

FIG. 2 is an enlarged view of the point A in FIG. 1 according to the present invention;

FIG. 3 is an enlarged view of the present invention at B in FIG. 1;

FIG. 4 is an enlarged view of the present invention at C in FIG. 1;

FIG. 5 is an enlarged view of the present invention at D in FIG. 1;

fig. 6 is a schematic structural view of the valve body of the present invention;

fig. 7 is an enlarged view of E of fig. 6 according to the present invention;

FIG. 8 is a schematic structural view of the drain blind of the present invention;

fig. 9 is a schematic structural diagram of the sphere of the present invention.

Description of reference numerals: 1. a valve body; 11. a lower mounting hole; 12. an upper mounting hole; 121. a limiting hole; 13. an upper lip-shaped sealing ring; 14. a lower lip-shaped seal ring; 15. a side lip-shaped seal ring; 16. a first sealing gasket; 17. a blowdown steam exhaust port; 171. discharging a blind plate; 18. a fourth sealing gasket; 2. a side body; 21. a stepped hole; 22. placing holes; 221. a cylindrical spring; 23. lifting lugs; 24. a support leg; 3. a valve seat; 31. inlaying a ring; 32. a fire collar; 33. pressing a ring; 34. a bidirectional pressure type lip-shaped seal ring group; 4. a sphere; 41. positioning holes; 42. a chute; 5. a valve stem; 51. a limiting block; 52. installing a shaft; 521. an upper electrostatic spring; 53. an upper thrust washer; 54. an upper lubrication bearing; 6. an upper cover; 61. an O-shaped ring; 62. a filler; 63. a packing press plate; 64. a second sealing gasket; 7. a lower cover; 71. a lower thrust washer; 72. a lower lubricated bearing; 73. a third sealing gasket; 74. a lower electrostatic spring; 8. a connecting disc; 9. a worm gear case; 91. a handwheel.

Detailed Description

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

as shown in fig. 1 and fig. 6-8: the embodiment of the invention provides a valve rod blowout prevention ball valve, which comprises a valve body 1, a side body 2 is fixedly connected to the left end and the right end of the valve body 1 through stud nuts, a ball body 4 arranged on the inner side of the valve body 1, a valve rod 5 connected to the upper end of the ball body 4, a worm gear box 9 in transmission connection with the valve rod 5 and a hand wheel 91 arranged on the worm gear box 9, a sewage discharge steam exhaust port 17 is formed in the valve body 1, a discharge blind plate 171 is installed on the inner side of the sewage discharge steam exhaust port 17, the discharge blind plate 171 is fixedly connected to the valve body 1 through stud nuts, and a fourth sealing gasket 18 is installed on the outer side of the discharge blind plate 171.

As shown in fig. 1-2 and 9: open on 4 upper ends right sides of spheroid has spout 42, 5 lower extreme fixedly connected with stoppers 51 of valve rod, stopper 51 sliding connection is inboard at spout 42, stopper 51 can drive spheroid 4 and rotate, 1 upper end of valve body is opened has mounting hole 12, it is equipped with the spacing hole 121 of opening on 1 of valve body to go up the 12 lower extremes of mounting hole, stopper 51 sliding connection is inboard at spacing hole 121, stopper 51 external diameter size is greater than the mounting hole size, stopper 51 upper end is installed thrust gasket 53, stopper 51 lower extreme fixedly connected with installation axle 52, installation axle 52 sliding connection is inboard at spout 42, install the lower extreme of axle 52 and install last static spring 521.

As shown in fig. 1-2: the valve rod 5 outside is equipped with the last lip seal 13 of installing on

valve body

1, 1 upper end of valve body is through screw fixedly connected with upper cover 6, valve rod 5 is located upper cover 6 inboard, the valve rod 5 outside is equipped with the O type circle 61 of installation on upper cover 6, valve rod 5 is connected with upper cover 6 through last lubricated bearing 54, valve rod 5 is located upper cover 6 inboard, valve rod 5 is connected with upper cover 6 through last lubricated bearing 54, go up lubricated bearing 54 upper end and install filler 62, filler clamp plate 63 is installed to filler 62 upper end, 6 upper end fixedly connected with connection pads 8 of upper cover, filler clamp plate 63 joint is inboard at

connection pads

8, 9 fixed connection of worm-gear case is in connection pads 8 upper end, the department of upper cover 6 lower extreme and valve body 1 contact is equipped with the second seal gasket 64 of installation on upper cover 6.

As shown in fig. 1 and 5: the lower end of the valve body 1 is provided with a lower mounting hole 11, the inner side of the lower mounting hole 11 is slidably connected with a lower cover 7, the lower cover 7 is fixedly connected with the lower end of the valve body 1, the lower end of the ball body 4 is provided with a positioning hole 41, the lower cover 7 is positioned on the inner side of the positioning hole 41, the lower cover 7 is connected with the ball body 4 through a lower lubricating bearing 72, the upper end of the lower cover 7 is provided with a lower thrust gasket 71 arranged on the inner side of the positioning hole 41, the outer side of the lower cover 7 is provided with a lower lip-shaped sealing ring 14 arranged on the valve body 1, the contact part of the lower end of the valve body 1 and the lower cover 7 is provided with a third sealing gasket 73 arranged on the lower cover 7, and the upper end of the lower cover 7 is provided with a lower static spring 74.

As shown in fig. 1 and 3-4: both ends all are equipped with disk seat 3 about spheroid 4, side body 2 is close to 1 one end of valve body and opens there is shoulder hole 21, disk seat 3 is installed at shoulder hole 21 inboardly, disk seat 3 is close to 4 one end fixedly connected with ring inlays 31 of spheroid, side body 2 is close to 1 one end of valve body and opens the even hole 22 of placing of a plurality of equidistance, place the hole 22 inboard and install cylinder spring 221, cylinder spring 221 contacts with disk seat 3, disk seat 3 keeps away from 4 one end fixedly connected with clamping ring 33 of spheroid, the fire prevention circle 32 is installed in the 3 outsides of disk seat, fire prevention circle 32 keeps away from spheroid 4 and has singly to be equipped with the two-way pressure type lip seal group 34 of installing in the 3 outsides of disk seat, the 2 outsides of side body is equipped with the side lip seal 15 of installing on valve body 1, both ends are equipped with first seal gasket 16 of installing on valve body 1 with side body 2 contact department about valve body 1, 2 upper end fixedly connected with lug 23 on the side body, 2 lower extreme fixedly connected with stabilizer blade 24.

The utility model discloses when using: the anti-blowout structure is formed by arranging the limiting hole 121 at the upper end of the valve body 1, the valve rod 5 is of a lower installation type, when the upper cover 6, the packing pressing plate 63 and the connecting disc 8 are detached, the valve rod 5 cannot fly out due to the effect of the limiting block 51 and the limiting hole 121 under the influence of pressure, and the valve is safe and reliable to use.

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 of the stem anti-blow-off ball valve may be made within the scope of the appended claims.

Claims

1. The utility model provides a ball valve is prevented blowing off by valve rod, includes that both ends all fixedly connected with side body (2) about valve body (1), set up in spheroid (4) of valve body (1) inboard, connect valve rod (5) in spheroid (4) upper end, worm gear case (9) and hand wheel (91) that set up on worm gear case (9) that are connected with valve rod (5) transmission, characterized by: open spheroid (4) upper end right side has spout (42), valve rod (5) lower extreme fixedly connected with stopper (51), stopper (51) sliding connection is inboard in spout (42), stopper (51) can drive spheroid (4) and rotate, open at valve body (1) upper end has mounting hole (12), valve rod (5) are located mounting hole (12) inboard, it is equipped with spacing hole (121) of opening on valve body (1) to go up mounting hole (12) lower extreme, stopper (51) sliding connection is inboard in spacing hole (121), stopper (51) size is greater than the mounting hole size, both ends all are equipped with disk seat (3) about spheroid (4), side body (2) are close to valve body (1) one end and open has shoulder hole (21), install at shoulder hole (21) inboard disk seat (3).

2. The valve stem blowout prevention ball valve as defined in claim 1, wherein: the lower end of the valve body (1) is provided with a lower mounting hole (11), the inner side of the lower mounting hole (11) is connected with a lower cover (7) in a sliding mode, the lower cover (7) is fixedly connected to the lower end of the valve body (1), the lower end of the ball body (4) is provided with a positioning hole (41), the lower cover (7) is located on the inner side of the positioning hole (41), and the lower cover (7) is connected with the inner wall of the positioning hole (41) through a lower lubricating bearing (72).

3. A stem blowout prevention ball valve as claimed in claim 1 or 2, wherein: the upper end of the valve body (1) is fixedly connected with an upper cover (6), the valve rod (5) is positioned on the inner side of the upper cover (6), and the valve rod (5) is connected with the upper cover (6) through an upper lubricating bearing (54).

4. A stem blowout prevention ball valve as defined in claim 3 wherein: the upper end of the upper lubricating bearing (54) is provided with a filler (62), the upper end of the filler (62) is provided with a filler pressing plate (63), the upper end of the upper cover (6) is fixedly connected with a connecting disc (8), the filler pressing plate (63) is clamped on the inner side of the connecting disc (8), and the worm gear case (9) is fixedly connected on the upper end of the connecting disc (8).

5. The stem blow-out prevention ball valve of claim 1, wherein: one end of the valve seat (3) close to the ball body (4) is fixedly connected with an inlay ring (31).

6. The valve stem blowout prevention ball valve as defined in claim 1, wherein: one end of the side body (2) close to the valve body (1) is provided with a plurality of equally spaced and uniform placing holes (22), the inner side of each placing hole (22) is provided with a cylindrical spring (221), and the cylindrical springs (221) are in contact with the valve seat (3).

7. The valve stem blowout prevention ball valve as defined in claim 1, wherein: one end of the valve seat (3) far away from the ball body (4) is fixedly connected with a pressing ring (33).

8. The stem blow-out prevention ball valve of claim 1, wherein: the fire protection ring (32) is installed in the valve seat (3) outside, and the fire protection ring (32) is far away from the spheroid (4) and has singly to be equipped with two-way pressure type lip seal group (34) of installing in the valve seat (3) outside.

9. The valve stem blowout prevention ball valve as defined in claim 2, wherein: an upper thrust washer (53) is installed at the upper end of the limiting block (51), and a lower thrust washer (71) installed on the inner side of the positioning hole (41) is arranged at the upper end of the lower cover (7).

10. The valve stem blowout prevention ball valve as defined in claim 2, wherein: lower static spring (74) is installed to lower cover (7) upper end, stopper (51) lower extreme fixedly connected with installation axle (52), and installation axle (52) sliding connection is inboard in spout (42), and installation axle (52) lower extreme is installed static spring (521).