CN220622811U - Ball valve with valve rod buffer assembly - Google Patents

Abstract

The utility model discloses a ball valve with a valve rod buffer assembly, which comprises a valve body, a vertical plate, a servo motor, a valve cavity, a valve rod, limiting blocks and valve cores, wherein the power output end of the servo motor is connected with the valve rod, the bottom end of the valve rod is arranged at the bottom in the valve cavity through a rotary groove, connecting plates are arranged at the positions, far away from the limiting blocks, of the two groups, the connecting plates are fixedly connected with the valve rod through connecting screws, cylindrical connecting blocks are arranged at the positions, close to the top and the bottom, of one end of each valve core, rectangular blocks are connected with the ends of the cylindrical connecting blocks, the rectangular blocks are positioned in the corresponding limiting blocks, guide sleeves are arranged at the positions, close to the top and the bottom, of the two ends of the inner wall of each limiting block, and sleeve rods are arranged in the guide sleeves. This novel spheroid for switching is when receiving fluid impact, possesses buffer structure for the valve rod part of ball valve is difficult for receiving the impact and damages, is fit for extensively using widely.

Description

Ball valve with valve rod buffer assembly

Technical Field

The utility model relates to the technical field of ball valves, in particular to a ball valve with a valve rod buffer assembly.

Background

The ball valve is a common valve type, belongs to one type of plug valves, and is mainly characterized in that the ball valve controls fluid circulation by rotating a ball body, and can be opened or closed rapidly, because the ball body is only required to be rotated by 90 degrees, and the full-open or full-closed state can be realized.

The prior ball valve has the following defects: 1. when the ball for opening and closing is impacted by fluid, the ball is not provided with a buffer structure, so that the valve rod part of the ball valve is easy to be impacted and damaged. To this end we propose a ball valve having a valve stem buffer assembly.

Disclosure of Invention

The utility model mainly aims to provide a ball valve with a valve rod buffer assembly, which can effectively solve the problems in the background technology.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

the utility model provides a ball valve with valve rod buffer assembly, includes valve body, riser, servo motor, valve pocket, valve rod, stopper and case, servo motor's power take off end is connected with the valve rod, the valve rod bottom is installed in the valve pocket through the change groove bottom, two sets of stopper keeps away from the department mutually and all is provided with the connecting plate, carry out fastening connection through connecting screw between connecting plate and the valve rod, case one end is close to top and bottom department all and all is provided with the cylindricality connecting block, cylindricality connecting block end connection has the rectangle piece, the rectangle piece all is located the stopper that corresponds, stopper inner wall both ends are close to top and bottom department all is provided with the guide pin bushing, the guide pin bushing is equipped with the loop bar, the loop bar is connected with the rectangle piece both ends correspondence, be connected with cylindricality buffer spring between guide pin bushing and the rectangle piece, cylindricality buffer spring is located the loop bar outside.

Further, the bump is arranged at the position of the inner wall of the valve cavity corresponding to the valve core, the sealing ring is arranged at one end of the inner wall of the bump, the sealing ring is positioned at the periphery of the end part of the valve core, and the sealing ring is matched with the valve core, so that when the valve core is in a closed state, the sealing effect between the valve core and the inner wall of the valve cavity is improved conveniently.

Further, a vertical plate is welded at one end of the top of the valve body, and the servo motor is mounted at one end of the vertical plate through a bolt.

Further, reserved pipes are arranged at two ends of the valve body, connecting discs are arranged on the periphery of the ends of the reserved pipes, connecting holes are formed in one ends of the connecting discs close to the edges in a penetrating mode, and the ball valve and the flange of the external pipeline are conveniently connected and fixed through the connecting holes which are formed in the outer bolts.

Compared with the prior art, the utility model has the following beneficial effects:

1. according to the ball valve with the valve rod buffer assembly, when the valve core is impacted by fluid in the closed state, as the sleeve rod is positioned in the guide sleeve on the inner wall of the limiting block, and the cylindrical buffer spring positioned on the outer side of the sleeve rod is further arranged between the guide sleeve and the outer wall of the limiting block, the valve core is enabled to be provided with the buffer structure when the valve core is impacted by the fluid, and the valve rod part of the ball valve is not easy to be damaged due to impact.

Drawings

FIG. 1 is a schematic view of the overall structure of a ball valve with a valve stem buffer assembly according to the present utility model.

FIG. 2 is a schematic diagram of the stopper, cylindrical connection block, rectangular block and valve core of a ball valve with a valve stem buffer assembly according to the present utility model.

FIG. 3 is a detailed schematic view of the structure of the ball valve of the present utility model at A with a valve stem buffer assembly.

In the figure: 1. a valve body; 2. a riser; 3. a servo motor; 4. a valve cavity; 5. reserving a pipe; 6. a connecting disc; 7. a connection hole; 8. a valve stem; 9. a limiting block; 10. a connecting plate; 11. a connecting screw; 12. a bump; 13. a seal ring; 14. a valve core; 15. a cylindrical connecting block; 16. rectangular blocks; 17. guide sleeve; 18. a loop bar; 19. and a cylindrical buffer spring.

Description of the embodiments

The utility model is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the utility model easy to understand.

As shown in fig. 1-3, a ball valve with valve rod buffer assembly comprises a valve body 1, a vertical plate 2, a servo motor 3, a valve cavity 4, a valve rod 8, a limiting block 9 and a valve core 14, wherein the power output end of the servo motor 3 is connected with the valve rod 8, the bottom end of the valve rod 8 is arranged at the inner bottom of the valve cavity 4 through a rotary groove, two groups of limiting blocks 9 are far away from each other and are respectively provided with a connecting plate 10, the connecting plates 10 are fixedly connected with the valve rod 8 through connecting screws 11, the positions, close to the top and the bottom, of one end of the valve core 14 are respectively provided with a cylindrical connecting block 15, the end parts of the cylindrical connecting blocks 15 are respectively connected with a rectangular block 16, the rectangular blocks 16 are respectively positioned in the corresponding limiting blocks 9, guide sleeves 17 are respectively arranged at the positions, close to the top and the bottom, sleeve rods 18 are respectively sleeved in the guide sleeves 17, the corresponding connecting rods 18 are respectively connected with the two ends of the rectangular blocks 16, cylindrical buffer springs 19 are connected between the guide sleeves 17 and the rectangular blocks 16, and the cylindrical buffer springs 19 are positioned at the outer sides of the sleeve rods 18.

The valve comprises a valve cavity 4, a valve core 14 and a valve rod, wherein a lug 12 is arranged at a position of the inner wall of the valve cavity 4 corresponding to the valve core 14, a sealing ring 13 is arranged at one end of the inner wall of the lug 12, and the sealing ring 13 is positioned at the periphery of the end part of the valve core 14.

In this embodiment, as shown in fig. 1, the sealing ring 13 is matched with the valve core 14, so that when the valve core 14 is in a closed state, the sealing effect between the valve core 14 and the inner wall of the valve cavity 4 is improved conveniently.

Wherein, valve body 1 top one end welding has riser 2, servo motor 3 passes through the bolt to be installed in riser 2 one end.

In this embodiment, as shown in fig. 1, the servo motor 3 is conveniently mounted on one end of the riser 2 by bolts.

The valve comprises a valve body 1, a reserved pipe 5 is arranged at two ends of the valve body, a connecting disc 6 is arranged at the periphery of the end part of the reserved pipe 5, and a connecting hole 7 is formed in one end of the connecting disc 6, close to the edge, in a penetrating manner.

In this embodiment, as shown in fig. 1, the external bolts pass through the connecting holes 7, so that the ball valve and the flange of the external pipeline can be conveniently connected and fixed.

It should be noted that, the utility model is a ball valve with valve rod buffer assembly, during operation, pass the connecting hole 7 through the external bolt, conveniently connect and fix this ball valve with flange of the external pipeline, servo motor 3 is convenient to drive valve rod 8 to rotate during operation, thus make the valve core 14 rotate, through changing the angle of valve core 14, conveniently control opening and closing of ball valve, when the valve core 14 receives the fluid impact under the closed state, because the rectangular block 16 that valve core 14 one end connects through the cylindrical connecting block 15 is located in stopper 9, the two ends of rectangular block 16 are close to top and bottom department set up the loop bar 18, the loop bar 18 is located in guide sleeve 17 of the inner wall of stopper 9, and still be provided with the cylindrical buffer spring 19 that is located outside the loop bar 18 between guide sleeve 17 and the outer wall of stopper 9, can make valve core 14 receive the fluid impact through the cylindrical buffer spring 19, possess the buffer structure, make the valve rod 8 part of ball valve be difficult for receiving the impact and damaging.

The foregoing has shown and described the basic principles and main features of the present utility model and the advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims (4)

1. Ball valve with valve rod buffer assembly, including valve body (1), riser (2), servo motor (3), valve pocket (4), valve rod (8), stopper (9) and case (14), its characterized in that: the power take-off of servo motor (3) is connected with valve rod (8), valve rod (8) bottom is installed in valve pocket (4) in through the change groove, two sets of stopper (9) are kept away from mutually and are all provided with connecting plate (10), carry out fastening connection through connecting screw (11) between connecting plate (10) and valve rod (8), case (14) one end is close to top and bottom department and all is provided with cylindricality connecting block (15), cylindricality connecting block (15) end connection has rectangle piece (16), rectangle piece (16) all are located stopper (9) that correspond, stopper (9) inner wall both ends are close to top and bottom department all are provided with guide pin bushing (17), the guide pin bushing (17) endotheca is equipped with loop bar (18), loop bar (18) are connected with rectangle piece (16) both ends correspondence, be connected with cylindricality buffer spring (19) between guide pin bushing (17) and rectangle piece (16), cylindricality buffer spring (19) are located loop bar (18) outside.

2. A ball valve having a valve stem buffer assembly according to claim 1, wherein: the valve is characterized in that a lug (12) is arranged at a position, corresponding to the valve core (14), of the inner wall of the valve cavity (4), a sealing ring (13) is arranged at one end of the inner wall of the lug (12), and the sealing ring (13) is located at the periphery of the end part of the valve core (14).

3. A ball valve having a valve stem buffer assembly according to claim 1, wherein: a vertical plate (2) is welded at one end of the top of the valve body (1), and the servo motor (3) is mounted at one end of the vertical plate (2) through a bolt.

4. A ball valve having a valve stem buffer assembly according to claim 1, wherein: reserved pipes (5) are arranged at two ends of the valve body (1), connecting discs (6) are arranged on the peripheries of the end parts of the reserved pipes (5), and connecting holes (7) are formed in one ends of the connecting discs (6) close to the edges in a penetrating mode.