Pneumatic actuator for opening valves in sections

Abstract

The utility model belongs to the field of pneumatic actuators, and particularly relates to a pneumatic actuator of a segmented opening valve, which comprises an actuator shell, an actuator external connection shaft is rotatably connected in the actuator shell, a manual adjustment connector is fixedly mounted at the top of the actuator external connection shaft, and the manual adjustment connector is connected with the actuator external connection shaft. The top of the manual adjusting connector penetrates through the actuator shell and extends to the top of the actuator shell. Opening and closing driving of a valve is achieved through cooperation between the actuator shell and the actuator external connection shaft, manual adjustment is conducted under the condition that an air source is blocked through the arrangement of the manual adjustment connector, and the amount of air entering the actuator shell is controlled through the arrangement of the air control device. Therefore, the movement distance of the air cylinder in the actuator shell is controlled, the rotation angle of the external connection shaft of the actuator is adjusted, and the opening and closing requirements of different angles are met.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of pneumatic actuator, concretely is a kind of pneumatic actuator of segmented opening valve. BACKGROUND

[0002] Pneumatic actuator is the execution device driven by air pressure to open and close or regulate valve, also be called pneumatic actuator or pneumatic device, but generally colloquial call it pneumatic head, pneumatic actuator sometimes also be equipped with certain auxiliary device, commonly used have valve positioner and hand wheel mechanism, the function of valve positioner is to improve the performance of actuator using feedback principle, so that actuator can be according to the control signal of controller, realize accurate positioning, the function of hand wheel mechanism is when control system is powered off, gas stops, controller has no output or actuator fails, using it can directly manipulate control valve, to maintain the normal production.

[0003] When using actuator, to meet the opening angle of control valve, auxiliary cylinder is often installed in its interior for adjusting the opening and closing angle of actuator, although the angle control can be realized by increasing auxiliary cylinder, but in actual use, due to the increase of auxiliary cylinder, the parts of pneumatic actuator are increased, the cost is increased, and the failure rate is increased, which cannot meet the use needs.

[0004] Therefore, the technical personnel in the art provide a kind of pneumatic actuator of segmented opening valve to solve the problems raised in the above background art. INVENTION CONTENTS

[0005] In order to make up for the deficiency of prior art, in actual use, due to the increase of auxiliary cylinder, the parts of pneumatic actuator are increased, the cost is increased, and the failure rate is increased, the utility model provides a kind of pneumatic actuator of segmented opening valve.

[0006] The technical scheme adopted by the utility model to solve its technical problems is: a kind of pneumatic actuator of segmented opening valve, including actuator shell, the inside rotationally connected of actuator shell has actuator external shaft, the top of actuator external shaft is fixedly installed with hand-operated adjustment connector, the top of hand-operated adjustment connector is penetrated through actuator shell and extends to the top of actuator shell, the end of hand-operated adjustment connector and actuator external shaft is rectangular, the right side of actuator shell is provided with gas control device;

[0007] The gas control device includes mounting seat, the mounting seat is fixedly installed on the right side of actuator shell, the right side of mounting seat is provided with gas mass flow controller, the front side of gas mass flow controller is embedded with data interface, the bottom of gas mass flow controller is communicated with two threaded connectors.

[0008] As preferred, the right side of the mounting seat is provided with a connecting groove, two limiting blocks are slidably connected in the connecting groove, and the right side of the limiting blocks is fixedly connected with the left side of the gas mass flow controller.

[0009] As preferred, a sealing plate is arranged at the bottom of the mounting seat and below the connecting groove, a third bolt is arranged in the sealing plate, and the top of the third bolt penetrates into the gas mass flow controller and is threadedly connected with the gas mass flow controller.

[0010] As preferred, two connecting ports are communicated with the right side of the actuator shell and the rear side of the gas mass flow controller, and an adapter pipe is threadedly connected between the connecting port of the right side of the actuator shell and the connecting port of the rear side of the gas mass flow controller.

[0011] As preferred, a connecting frame is arranged at the bottom of the actuator shell, and the connecting frame is sleeved on the outer side of the actuator external shaft.

[0012] As preferred, four second bolts are arranged at the top and the bottom of the actuator external shaft, and the top of the connecting frame is fixedly connected with the bottom of the actuator shell through the second bolts.

[0013] As preferred, a cylinder sealing cover is arranged at the front side and the rear side of the actuator shell, four first bolts are arranged in the cylinder sealing cover, and the rear side of the first bolts penetrates into the actuator shell and is threadedly connected with the actuator shell.

[0014] The utility model discloses the beneficial effect lies in:

[0015] The utility model discloses the cooperation between actuator shell and actuator external shaft realizes the switch drive to valve, and the setting of manual adjustment connector is used for realizing manual adjustment under the condition of gas source block, and the setting of gas control device is used for realizing the control to the gas amount that enters the inside of actuator shell, and then the moving distance of the cylinder in the inside of actuator shell is controlled, realizes the rotation angle of the adjustment of actuator external shaft, and then satisfies the need of different angle opening and closing. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or prior art, the following will briefly introduce the drawing needed to be used in the embodiment or prior art description, and obviously, the drawing in the following description is only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0017] Figure 1The utility model discloses a structure schematic drawing of the utility model;

[0018] Figure 2 The utility model discloses a rear view structure schematic drawing of the utility model;

[0019] Figure 3 The utility model discloses an actuator shell structure schematic drawing of the utility model;

[0020] Figure 4 The utility model discloses a mounting seat structure schematic drawing of the utility model;

[0021] Figure 5 The utility model discloses a gas mass flow controller structure schematic drawing of the utility model;

[0022] Figure 6 The utility model discloses a connecting frame structure schematic drawing of the utility model;

[0023] Figure 7 The utility model discloses a sealing plate structure schematic drawing of the utility model;

[0024] Figure 8 The utility model discloses an adapter pipe structure schematic drawing of the utility model.

[0025] In the drawing: 1, actuator shell;2, cylinder body sealing cover;3, first bolt;4, manual adjustment connector;5, connecting frame;6, gas control device;601, connecting port;602, connecting groove;603, mounting seat;604, limit block;605, gas mass flow controller;606, data interface;607, threaded connector;608, sealing plate;609, third bolt;610, adapter pipe;7, second bolt;8, actuator external shaft. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the utility model.

[0027] The following will be combined with the drawings of the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Figures 1-8 The application will be further described in detail,

[0028] The embodiments of the application disclose a pneumatic actuator of sectional opening valve. Refer to Figure 1 、 Figure 2 and Figure 3The utility model provides a kind of pneumatic actuator of sectional opening valve, including actuator shell 1, the inside rotation connection of actuator shell 1 is equipped with actuator outer shaft 8, the top of actuator outer shaft 8 is fixedly installed with manual adjustment connector 4, the top of manual adjustment connector 4 is through actuator shell 1 and extends to the top of actuator shell 1, the end of manual adjustment connector 4 and actuator outer shaft 8 is rectangular, and the right side of actuator shell 1 is provided with gas control device 6;

[0029] Gas control device 6 includes mounting seat 603, mounting seat 603 is fixedly installed on the right side of actuator shell 1, the right side of mounting seat 603 is provided with gas mass flow controller 605, the front side of gas mass flow controller 605 is embedded with data interface 606, and the bottom of gas mass flow controller 605 is communicated with two threaded connectors 607.

[0030] Referring to Figure 4 And Figure 5 The right side of mounting seat 603 is provided with connecting groove 602, two limit blocks 604 are slidably connected in connecting groove 602, the right side of limit block 604 is fixedly connected with the left side of gas mass flow controller 605, and the fixed installation of gas mass flow controller 605 relative to mounting seat 603 is realized by the cooperation between connecting groove 602 and limit block 604, and the replacement of gas mass flow controller 605 is also facilitated after the damage of gas mass flow controller 605.

[0031] Referring to Figure 7 The bottom of mounting seat 603 and below connecting groove 602 are provided with sealing plate 608, third bolt 609 is inserted in the inside of sealing plate 608, the top of third bolt 609 is communicated to the inside of gas mass flow controller 605 and is threadedly rotatably connected between gas mass flow controller 605, the bottom of connecting groove 602 is sealed by the cooperation between sealing plate 608 and third bolt 609, so that the limiting of limit block 604 is realized, and gas mass flow controller 605 is stabilized.

[0032] Referring to Figure 2 、 Figure 3 And Figure 8 The right side of actuator shell 1 and the rear side of gas mass flow controller 605 are communicated with two connection ports 601, and the connection port 601 of actuator shell 1 right side and the connection port 601 of gas mass flow controller 605 rear side are threadedly connected with adapter pipe 610, and the different angle opening and closing of valve is realized by the cooperation between connection port 601 and adapter pipe 610 for sending quantitative gas to the inside of actuator shell 1.

[0033] Referring to Figure 2The bottom of the actuator shell 1 is provided with a connecting frame 5, the connecting frame 5 is sleeved on the outer side of the actuator external shaft 8, and the connecting frame 5 is connected to the valve.

[0034] Referring to Figure 2 and Figure 6 The top and bottom of the actuator external shaft 8 are provided with four second bolts 7, the top of the connecting frame 5 and the bottom of the actuator shell 1 are fixedly connected through the second bolts 7, and the connecting frame 5 and the actuator shell 1 are connected through the second bolts 7.

[0035] Referring to Figure 1 and Figure 2 The front and rear sides of the actuator shell 1 are provided with cylinder sealing covers 2, the inside of the cylinder sealing cover 2 is provided with four first bolts 3, the rear side of the first bolt 3 penetrates into the inside of the actuator shell 1 and is threadedly connected with the actuator shell 1, the inside of the cylinder sealing cover 2 is sealed through the cylinder sealing cover 2, and the piston is taken out for maintenance and cleaning through the disassembly of the cylinder sealing cover 2 and the first bolt 3.

[0036] Working principle: place the connecting frame 5 at the bottom of the actuator shell 1, make the second bolt 7 pass through the connecting frame 5 and be fixed with the bottom of the actuator shell 1, take up the actuator shell 1 and the connecting frame 5 after fixing, and place them on the top of the valve, make the bottom of the actuator external shaft 8 penetrate into the inside of the valve stem, make the second bolt 7 penetrate the connecting frame 5 and be connected with the top of the valve body, take up the gas mass flow controller 605 after connection, make the limiting block 604 penetrate into the inside of the connecting groove 602, place the sealing plate 608 and the third bolt 609 at the bottom of the mounting seat 603, and make the third bolt 609 connected with the mounting seat 603, so as to fix the gas mass flow controller 605, connect the connecting ports 601 on the right side of the gas mass flow controller 605 and the actuator shell 1 through the adapter pipe 610 after fixing, connect the external gas supply pipe with the threaded connector 607, connect the control line with the data interface 606, and the actual use can be realized. In actual use, the amount of gas entering is detected by the gas mass flow controller 605 and is fed back, and then the supply of gas is stopped, so as to control the opening and closing angle of the actuator external shaft 8 and the valve leaf.

[0037] The basic principle, main features and advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application.

Claims

1. A pneumatic actuator for segmental opening valves, characterized in that: The utility model provides an actuator shell (1), the inside rotation of actuator shell (1) is connected with actuator outer connecting shaft (8), the top of actuator outer connecting shaft (8) is fixedly installed with manual regulation connector (4), the top of manual regulation connector (4) is through actuator shell (1) and extends to the top of actuator shell (1), the end of manual regulation connector (4) and actuator outer connecting shaft (8) is rectangular, the right side of actuator shell (1) is provided with gas control device (6), The gas control device (6) includes a mounting seat (603) fixedly installed on the right side of the actuator shell (1), a gas mass flow controller (605) is arranged on the right side of the mounting seat (603), a data interface (606) is embedded on the front side of the gas mass flow controller (605), and two threaded connectors (607) are communicated with the bottom of the gas mass flow controller (605).

2. A pneumatic actuator for a segmented gate valve as defined in claim 1, wherein: A connecting groove (602) is formed on the right side of the mounting seat (603), two limiting blocks (604) are slidably connected in the connecting groove (602), and the right side of the limiting block (604) is fixedly connected with the left side of the gas mass flow controller (605).

3. A pneumatic actuator for a segmented valve according to claim 2, wherein: A sealing plate (608) is arranged at the bottom of the mounting seat (603) and below the connecting groove (602), a third bolt (609) is inserted in the sealing plate (608), and the top of the third bolt (609) penetrates into the gas mass flow controller (605) and is threadedly connected with the gas mass flow controller (605).

4. A pneumatic actuator for a segmented valve according to claim 1, wherein: Two connecting ports (601) are communicated with the right side of the actuator shell (1) and the rear side of the gas mass flow controller (605), and an adapter pipe (610) is threadedly connected between the connecting port (601) on the right side of the actuator shell (1) and the connecting port (601) on the rear side of the gas mass flow controller (605).

5. A pneumatic actuator for a segmented valve according to claim 1, wherein: A connecting frame (5) is arranged at the bottom of the actuator shell (1), and the connecting frame (5) is sleeved on the outer side of the actuator outer connecting shaft (8).

6. A pneumatic actuator for a segmented valve according to claim 5, wherein: Four second bolts (7) are inserted into the top and the bottom of the actuator outer connecting shaft (8), and the top of the connecting frame (5) and the bottom of the actuator shell (1) are fixedly connected by the second bolts (7).

7. A pneumatic actuator for a segmental valve according to claim 1, characterized in that: Cylinder sealing covers (2) are arranged on the front side and the rear side of the actuator shell (1), four first bolts (3) are inserted into the cylinder sealing covers (2), and the rear side of the first bolts (3) penetrates into the actuator shell (1) and is threadedly connected with the actuator shell (1).

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