CN213117679U

CN213117679U - Double-acting pneumatic flange ball valve

Info

Publication number: CN213117679U
Application number: CN202021029844.6U
Authority: CN
Inventors: 罗涛
Original assignee: Nanjing Hantai Valve Co ltd
Current assignee: Nanjing Hantai Valve Co ltd
Priority date: 2020-06-06
Filing date: 2020-06-06
Publication date: 2021-05-04
Anticipated expiration: 2030-06-06

Abstract

The utility model discloses a double-acting pneumatic flange ball valve, which comprises a ball valve body and a pneumatic mechanism, wherein the pneumatic mechanism is horizontally arranged at the top of a bracket, a connecting shaft is vertically arranged at the central position of the bottom of the pneumatic mechanism, the lower end of the connecting shaft is inserted into the upper part of the inner side of the connecting sleeve, the upper end of a rotating shaft is inserted into the inner side of the connecting sleeve, the bottom end of the rotating shaft is connected with the upper end of a valve rod of the ball valve body, the connecting sleeve is vertically welded at one end of a support plate, a nut is vertically welded at the other end of the support plate, the nut is connected with a lead screw through screw threads, the lead screw is arranged along the central line direction of an outer frame, the upper end of the lead screw is connected with a driving shaft of a motor, the motor, the opening and closing of the ball valve body are controlled by rotating the valve rod through the hand wheel.

Description

Double-acting pneumatic flange ball valve

Technical Field

The utility model relates to a ball valve technical field specifically is a two effect pneumatic flange ball valves.

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. The multi-way ball valve can flexibly control the confluence, the diversion and the switching of the flow direction of the medium on the pipeline, and can close any channel to connect the other two channels. The valve of this type should be generally installed horizontally in the pipeline. The ball valve is divided into: pneumatic ball valves, electric ball valves, manual ball valves. The double-acting pneumatic flange ball valve is one of pneumatic ball valves, and the existing double-acting pneumatic flange ball valve has the problem that the ball valve cannot normally work when a pneumatic mechanism fails. Therefore, the utility model provides a two effect pneumatic flange ball valves is used for solving above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a two effect pneumatic flange ball valves 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: a double-acting pneumatic flange ball valve comprises a ball valve body and a pneumatic mechanism, wherein connecting ports are arranged on two sides of the ball valve body, a support is vertically arranged on the upper side of the middle part of the ball valve body, the pneumatic mechanism is horizontally arranged at the top of the support, a connecting shaft is vertically arranged at the center position of the bottom of the pneumatic mechanism, the lower end of the connecting shaft is inserted into the upper part of the inner side of the connecting sleeve, the upper end of a rotating shaft is inserted into the inner side of the connecting sleeve, the bottom end of the rotating shaft is connected with the upper end of a valve rod of the ball valve body, the connecting sleeve is vertically welded at one end of a supporting plate, a nut is vertically welded at the other end of the supporting plate, the nut is in threaded connection with a lead screw, the lead screw is installed along the central line, two pistons are installed on two sides of the interior of the cylinder body in an embedded mode, and a gear is installed in the center of the interior of the cylinder body.

Preferably, the piston comprises a piston plate and a toothed plate, the toothed plate is welded on one side of the piston plate facing the gear, the toothed plate is meshed with one side of the gear, and the piston plate is installed on one side of the inside of the cylinder in a fitting manner.

Preferably, the pneumatic mechanism further comprises a driven gear and a manual shaft, the driven gear is mounted on one side of the gear inside the cylinder body, the driven gear is meshed with the gear, the central position of the upper portion of the driven gear is connected with the bottom end of the manual shaft, and the upper end of the manual shaft penetrates through the cylinder body.

Preferably, the upper end of the connecting shaft is connected with a gear, the cross section of the shaft body of the connecting shaft inserted into the connecting sleeve is square, and the cross section of the rotating shaft is square.

Preferably, the connecting sleeve comprises a shaft sleeve and a ball bearing, the shaft sleeve is fixed on the inner side of the ball bearing inner shaft sleeve, and the ball bearing outer shaft sleeve is connected with the support plate.

Preferably, one side of the outer frame is connected with the support through a bolt, a guide plate is welded on one side, away from the support plate, of the nut, and the guide plate is inserted into a vertical seam on one side of the outer frame.

Preferably, the rotating shaft is connected with the top end of the valve rod through a flange, and a hand wheel is mounted in the middle of the valve rod.

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

1. the motor is used for driving the screw rod to rotate, the screw rod rotates to drive the nut to move, the nut moves to control the upper part of the connecting sleeve to be separated from the bottom end of the connecting shaft, the connecting sleeve is separated from the connecting shaft when the pneumatic mechanism fails, and the valve rod is rotated through the hand wheel to control the opening and closing of the ball valve body;

2. the driven gear is driven to rotate by the rotation of the manual shaft controlled by the wrench, the driven gear drives the gear to rotate so as to control the valve rod to rotate to manually control the opening and closing of the ball valve body, and meanwhile, the two groups of pistons are driven to move so as to be reset;

3. utilize the piston plate to move at body of rod inside and drive the pinion rack and remove, the pinion rack removes and drives the gear rotation, and gear rotation drives the connecting axle and rotates, and the connecting axle drives the pivot through the transmission of adapter sleeve and rotates, and the pivot drives the valve rod and rotates and control opening or closing of ball valve body.

Drawings

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

fig. 2 is a schematic structural view of the pneumatic mechanism of the present invention;

fig. 3 is a schematic view of the structure of the connecting member of the present invention.

In the figure: the ball valve comprises a ball valve body 1, a connecting port 2, a valve rod 3, a rotating shaft 4, a connecting shaft 5, a pneumatic mechanism 6, a connecting strip 7, a support 8, a support plate 9, an outer frame 10, a lead screw 11, a motor 12, a nut 13, a guide plate 14, a flange 15, a hand wheel 16, a cylinder body 61, a piston 62, a gear 63, a driven gear 64, a manual shaft 65, a piston plate 621, a toothed plate 622, a shaft sleeve 71 and a ball bearing 72.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, 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 work belong to the protection scope of the present invention.

Referring to fig. 1 to 3, the present invention provides a technical solution: the utility model provides a two effect pneumatic flange ball valves, including ball valve body 1 and pneumatic mechanism 6, the both sides of ball valve body 1 are connector 2, the upside at ball valve body 1 middle part is vertical installs support 8, pneumatic mechanism 6 is installed to the top horizontal mounting of support 8, the central point of pneumatic mechanism 6 bottom puts vertical installation and connects axle 5, the lower extreme of connecting axle 5 inserts the inboard upper portion of adapter sleeve 7, the inboard upper end that supplies pivot 4 of adapter sleeve 7 inserts, the valve rod 3 upper end of ball valve body 1 is connected to the bottom of pivot 4, adapter sleeve 7 vertical welding is in the one end of extension board 9, the vertical welding of the other end of extension board 9 has nut 13, nut 13 threaded connection lead screw 11, lead screw 11 installs along the central line direction of outer frame 10, the drive shaft of motor 12 is connected to the upper end of lead screw 11, motor 12 is vertical to be installed, Two pistons 62 are embedded in two sides of the interior of the cylinder body 61, the gear 63 is installed in the center of the interior of the cylinder body 61, the motor 12 drives the screw rod 11 to rotate, the screw rod 11 rotates to drive the nut 13 to move, the nut 13 moves to control the upper portion of the connecting sleeve 7 to be connected with or separated from the bottom end of the connecting shaft 5, the connecting sleeve 7 is separated from the connecting shaft 5 when the pneumatic mechanism 6 fails, and the hand wheel 16 rotates the valve rod 3 to control the opening and closing of the ball valve body 1.

Further, the piston 62 includes piston plate 621 and pinion rack 622, pinion rack 622 welds in one side of piston plate 621 towards gear 63, one side of pinion rack 622 meshing gear 63, the inside one side at cylinder body 61 is installed in the gomphosis of piston plate 621, piston plate 621 removes at the inside drive pinion rack 622 of body of rod 61 and removes, pinion rack 622 removes and drives gear 63 and rotate, gear 63 rotates and drives connecting axle 5 and rotate, connecting axle 5 drives pivot 4 through the transmission of adapter sleeve 7 and rotates, pivot 4 drives the rotation of valve rod 3 and controls opening or closing of ball valve body 1.

Further, the pneumatic mechanism 6 further comprises a driven gear 64 and a manual shaft 65, the driven gear 64 is installed on one side of the gear 63 inside the cylinder body 61, the driven gear 64 is meshed with the gear 63, the central position of the upper portion of the driven gear 64 is connected with the bottom end of the manual shaft 65, the upper end of the manual shaft 65 penetrates through the cylinder body 61, the manual shaft 65 is controlled to rotate through a wrench to drive the driven gear 64 to rotate, the driven gear 64 drives the gear 63 to rotate to control the valve rod 3 to rotate to manually control the opening and closing of the ball valve body 1, and meanwhile, the two groups of pistons 62 are driven to move to enable the pistons to reset.

Furthermore, the upper end of the connecting shaft 5 is connected with a gear 63, the connecting shaft 5 is inserted into the connecting sleeve 7, the cross section of the shaft body is square, the cross section of the rotating shaft 4 is square, and the connecting sleeve 7 is used for transmission.

Furthermore, the connecting sleeve 7 comprises a sleeve 71 and a ball bearing 72, the sleeve 71 is fixed on the inner side of the inner sleeve of the ball bearing 72, the outer sleeve of the ball bearing 72 is connected with the support plate 9, the ball bearing 72 enables the rotation of the sleeve 71 to be smoother, and the sleeve 71 is connected with the rotating shaft 4 and the connecting shaft 5 to play a role in transmission.

Further, one side of the outer frame 10 is connected with the support 8 through bolts, a guide plate 14 is welded on one side, away from the support plate 9, of the nut 13, the guide plate 14 is inserted into a vertical seam on one side of the outer frame 10, the guide plate 14 slides in the vertical seam when the nut 13 moves, and the guide nut 13 moves more stably.

Further, the rotating shaft 4 is connected with the top end of the valve rod 3 through the flange 15, the flange 15 is convenient for the rotating shaft 4 to be connected with the valve rod 3, the middle of the valve rod 3 is provided with the hand wheel 16, the hand wheel 16 is convenient for manually rotating the valve rod 3 to control the opening or closing of the ball valve body 1, and the control of the ball valve body 1 under the condition that the pneumatic mechanism 6 fails is facilitated.

The working principle is as follows: in actual operation, the starting mechanism 6 works, an external air pump supplies or exhausts air to the inside of the air cylinder 1, the piston plate 621 moves inside the rod body 61 to drive the toothed plate 622 to move, the toothed plate 622 moves to drive the gear 63 to rotate, the gear 63 rotates to drive the connecting shaft 5 to rotate, the connecting shaft 5 drives the rotating shaft 4 to rotate through transmission of the connecting sleeve 7, the rotating shaft 4 drives the valve rod 3 to rotate to control opening or closing of the ball valve body 1, when the pneumatic mechanism 6 fails, a worker rotates the manual shaft 65 by using a wrench, the manual shaft 65 rotates to drive the driven gear 64 to rotate, the driven gear 64 drives the gear 63 to rotate to control the valve rod 3 to rotate to manually control opening and closing of the ball valve body 1, if the manual shaft 65 cannot rotate, the motor 12 is controlled to work, the motor 12 drives the screw rod 11 to rotate, the screw rod 11 rotates to drive the nut 13 to move, the nut 13 moves to control the upper, the connecting sleeve 7 is separated from the connecting shaft 5, and a worker rotates the valve rod 3 through the hand wheel 16 to control the opening and closing of the ball valve body 1.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a two effect pneumatic flange ball valve, includes ball valve body (1) and pneumatic mechanism (6), its characterized in that, the both sides of ball valve body (1) are connector (2), the upside at ball valve body (1) middle part is vertical installs support (8), the top horizontal installation of support (8) has pneumatic mechanism (6), the central point of pneumatic mechanism (6) bottom puts vertical installation and has connecting axle (5), the lower extreme of connecting axle (5) inserts the upper portion of adapter sleeve (7) inboard, the inboard upper end that supplies pivot (4) of adapter sleeve (7) inserts, the valve rod (3) upper end of ball valve body (1) is connected to the bottom of pivot (4), the vertical welding of adapter sleeve (7) is in the one end of extension board (9), the vertical welding of the other end of extension board (9) has nut (13), nut (13) threaded connection lead screw (11), the lead screw (11) is installed along the central line direction of outer frame (10), the drive shaft of motor (12) is connected to the upper end of lead screw (11), the upper portion at outer frame (10) is vertically installed in motor (12), pneumatic mechanism (6) include cylinder body (61), piston (62) and gear (63), two pistons (62) are installed to the inside both sides gomphosis of cylinder body (61), gear (63) are installed to the inside central point of cylinder body (61).

2. A double acting pneumatic flange ball valve according to claim 1, wherein: the piston (62) comprises a piston plate (621) and a toothed plate (622), the toothed plate (622) is welded on one side, facing the gear (63), of the piston plate (621), the toothed plate (622) is meshed with one side of the gear (63), and the piston plate (621) is installed on one side inside the cylinder (61) in a fitting mode.

3. A double acting pneumatic flange ball valve according to claim 1, wherein: the pneumatic mechanism (6) further comprises a driven gear (64) and a manual shaft (65), the driven gear (64) is installed on one side of a gear (63) inside the cylinder body (61), the driven gear (64) is meshed with the gear (63), the center of the upper portion of the driven gear (64) is connected with the bottom end of the manual shaft (65), and the upper end of the manual shaft (65) penetrates through the cylinder body (61).

4. A double acting pneumatic flange ball valve according to claim 1, wherein: the connecting shaft is characterized in that the upper end of the connecting shaft (5) is connected with a gear (63), the connecting shaft (5) is inserted into the connecting sleeve (7), the cross section of an inner shaft body is square, and the cross section of the rotating shaft (4) is square.

5. A double acting pneumatic flange ball valve according to claim 1, wherein: the connecting sleeve (7) comprises a shaft sleeve (71) and a ball bearing (72), the shaft sleeve (71) is fixed on the inner side of the inner shaft sleeve of the ball bearing (72), and the outer shaft sleeve of the ball bearing (72) is connected with the support plate (9).

6. A double acting pneumatic flange ball valve according to claim 1, wherein: one side of the outer frame (10) is connected with the support (8) through a bolt, one side of the nut (13) departing from the support plate (9) is welded with a guide plate (14), and the guide plate (14) is inserted into a vertical seam on one side of the outer frame (10).

7. A double acting pneumatic flange ball valve according to claim 1, wherein: the rotating shaft (4) is connected with the top end of the valve rod (3) through a flange (15), and a hand wheel (16) is installed in the middle of the valve rod (3).