CN112648399A

CN112648399A - Multi-valve-clack adjustable gate valve

Info

Publication number: CN112648399A
Application number: CN202110020796.7A
Authority: CN
Inventors: 林哲; 仇曼; 陈德胜; 王婷婷
Original assignee: Zhejiang University of Technology ZJUT
Current assignee: Zhejiang University of Technology ZJUT
Priority date: 2021-01-07
Filing date: 2021-01-07
Publication date: 2021-04-13

Abstract

The invention provides a multi-valve adjustable gate valve, which relates to the technical field of valves. The multi-valve adjustable gate valve includes a valve body, the upper surface of the valve body is fixedly connected with a valve cover, the upper surface of the valve cover is fixedly connected with an electric cylinder, and the output end of the electric cylinder is fixedly connected with a guide rod , the end of the guide rod away from the electric cylinder is fixedly connected with a slider nut, the inside of the slider nut is movably connected with a slider through a pin, the inside of the slider is movably connected with a valve rod, and the valve rod is movably connected to the inside of the slider. A slider limit plate is fixedly connected above, and the slider limit plate and the valve stem are connected by screws. The opening and closing of the valve core is realized through the meshing of the gear teeth. Compared with the traditional gate valve, the action is faster, the space is saved, and the transmission efficiency is high. The shunt hole of the disc bracket has a good effect on fluid shearing and buffering, and the sealing effect of the arc surface is better.

Description

Multi-valve-clack adjustable gate valve

Technical Field

The invention relates to the technical field of valves, in particular to a multi-valve-clack adjustable gate valve.

Background

The gate valve is a valve which uses a gate plate as an opening and closing element and realizes the connection and disconnection of medium flow by moving along the vertical direction of the central line of an internal flow passage of the valve. The gate valve is used for fully opening or fully closing and cutting off on a pipeline, generally, the gate valve is not used for adjusting flow, the gate valve is sealed through contact of a valve seat and a gate plate, metal materials can be deposited on a sealing surface to increase abrasion resistance, and the gate valve is divided into a rigid gate valve and an elastic gate valve according to different gate plates.

Erosion and abrasion are easily caused between sealing surfaces of the traditional gate valve, and the maintenance is difficult. The overall dimension is great, opens and needs certain space, and the switching time is long, can't respond fast, and the structure is more complicated, is difficult for realizing different apertures moreover, and operating torque is great.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a multi-valve-clack adjustable gate valve, which solves the problems that the gate valve cannot be quickly switched on and off and different opening degrees cannot be realized.

(II) technical scheme

In order to achieve the purpose, the invention is realized by the following technical scheme: a valve cover is fixedly connected to the upper surface of the valve body, an electric cylinder is fixedly connected to the upper surface of the valve cover, a guide rod is fixedly connected to the output end of the electric cylinder, a slider nut is fixedly connected to one end, away from the electric cylinder, of the guide rod, a slider is movably connected to the interior of the slider nut through a pin shaft, a valve rod is movably connected to the interior of the slider, a slider limiting plate is fixedly connected to the upper portion of the valve rod, and the slider limiting plate is connected with the valve rod through a screw;

a valve clack support is arranged in the valve body, the valve rod is connected with the valve clack support in a screwing mode through threads, the side surface of the valve clack support is movably connected with a valve clack through a pin, the number of the valve clacks is five, an arc-shaped rack is arranged on one side of the valve clack, an inner gear ring is arranged in the valve clack support, and the inner gear ring is meshed with the arc-shaped rack;

the valve rod, the valve clack support, the pin, the valve clack and the inner gear ring form a valve core, a valve core sealing piece is arranged on the inner wall of the valve body, a valve core sealing ring is arranged at one end, far away from the valve body, of the valve core sealing piece, and the valve core sealing piece and the valve core sealing ring are both located between the valve body and the valve core.

Preferably, the valve gap includes the valve cap base, the upper surface of valve cap base is provided with square platform, the upper surface of valve cap base and the right side that is located square platform are provided with the arch shell, the valve gap passes through bolt and nut and valve body fixed connection, the upper surface and the electric jar fixed connection of square platform.

Preferably, the square platform is fixedly connected with the valve body through a valve cover screw, a triangular rib plate is arranged on the lower surface of the square platform, and one end, far away from the square platform, of the triangular rib plate is fixedly connected with the valve body.

Preferably, the cross-sectional shape of the valve rod is square, and the valve rod is positioned inside the sliding block.

Preferably, the left side and the right side of the valve body are respectively provided with an inlet and an outlet, the central lines of the inlet, the outlet and the valve core are positioned on the same horizontal line, the inner walls of the inlet and the outlet are provided with valve body sealing rings, and a valve body sealing piece is arranged inside the valve body sealing rings.

Preferably, an arc plane is arranged at one end, far away from the arc rack, of the valve clack, the valve clacks are sealed in a nested mode through arc curved surfaces, and the valve clack support is provided with a plurality of shunting holes corresponding to the valve clacks.

Preferably, the inside of square platform sets up in the square hole, the inside and valve rod, slider swing joint in square hole.

Preferably, the valve core sealing element is positioned at a convex shoulder of the valve body, grooves are formed in the front end and the rear end of the valve body, and the inner portion of each groove is fixedly connected with the sealing ring of the valve body.

The working principle is as follows: before using, through being connected respectively in the pipeline with import 101 and export 102, when being in the encapsulated situation, closely laminating between the valve clack 73, through starting electric cylinder 10, through moving guide bar 6 left, drive valve rod 71 is to the left swing in valve body 1, and then, valve rod 71 drives valve clack support 72 and rotates, thereby makes valve clack 71 open, controls the degree that the gate valve opened through the displacement of control guide bar 6, when closing, electric cylinder 10 drives the guide bar and moves right, thereby makes valve clack 73 close.

(III) advantageous effects

The invention provides a multi-valve-clack adjustable gate valve. The method has the following beneficial effects:

1. according to the invention, the valve core is opened and closed by meshing the gear teeth, and compared with the traditional gate valve, the gate valve has the advantages of fast action, space saving and high transfer efficiency.

2. According to the invention, the valve core is opened and closed together by arranging the valve clacks, the caliber of the valve cavity is gradually increased, the flow dividing holes of the valve clack support have good effects on fluid shearing and buffering, and the arc curved surface sealing effect is better.

3. According to the invention, through the electric cylinder, the guide rod is connected with the valve rod through the slide block, so that the direct motion is effectively the rotation of the valve clack, the moment of the control device and the movement distance of the valve core are greatly reduced, the valve volume is reduced, the cost is saved, and the valve can be widely applied to the fields of petroleum, chemical engineering, water conservancy and the like.

Drawings

FIG. 1 is a schematic view of the internal structure of the present invention;

FIG. 2 is a left side view of the present invention;

FIG. 3 is a schematic view of the overall structure of the present invention;

FIG. 4 is a front view of the valve cartridge of the present invention in a closed condition;

FIG. 5 is a rear view of the valve cartridge of the present invention in a closed position;

FIG. 6 is a schematic view of the valve flap support structure of the present invention;

FIG. 7 is an elevational view of the valve flap construction of the present invention;

FIG. 8 is a rear view of the valve flap structure of the present invention;

FIG. 9 is a left side elevation view of the present invention;

FIG. 10 is a schematic view of the slider and valve stem installation of the present invention.

Wherein, 1, a valve body; 101. an inlet; 102. an outlet; 2. a valve body sealing ring; 3. a valve body seal; 4. a valve cover; 5. a bolt; 6. a nut; 7. a valve core; 71. a valve stem; 72. a valve flap support; 73. a valve flap; 74. a pin; 75. an inner gear ring; 8. a spool seal; 9. a valve core sealing ring; 10. an electric cylinder; 11. a bonnet screw; 12. a slider nut; 13. a pin shaft; 14. a slider; 15. a screw; 16. and the slide block is provided with a limit plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example (b):

as shown in fig. 1-10, an embodiment of the present invention provides a multi-clack adjustable gate valve, which includes a valve body 1, a main body of the gate valve, a valve cover 4 fixedly connected to an upper surface of the valve body 1, the gate valve is sealed, the valve cover 4 comprises a valve cover base, a square table is arranged on the upper surface of the valve cover base and used for placing the electric cylinder 10, the inside of the square table is arranged in a square hole, the inside of the square hole is movably connected with the valve rod 71 and the sliding block 14, so that the valve rod 71 can go deep into the valve body 1, the square table is fixedly connected with the valve body 1 through a valve cover screw 11, a triangular rib plate is arranged on the lower surface of the square table, the valve cover is characterized in that the square platform is supported, one end, far away from the square platform, of the triangular rib plate is fixedly connected with the valve body 1, an arch-shaped shell is arranged on the upper surface of the valve cover base and on the right side of the square platform, the valve cover 4 is fixedly connected with the valve body 1 through a bolt 5 and a nut 6, and the upper surface of the square platform is fixedly connected with the electric cylinder 10.

The last fixed surface of valve gap 4 is connected with electric jar 10, provide the power of back-and-forth movement, the output fixedly connected with guide bar of electric jar 10, transmit power, the one end fixedly connected with slider nut 12 of electric jar 10 is kept away from to the guide bar, there is slider 14 inside through round pin axle 13 swing joint of slider nut 12, the inside swing joint of slider 14 has valve rod 71, promote the guide bar and move, thereby make slider 14 slide, valve rod 71 offsets, make valve clack support 72 rotate, the cross sectional shape of valve rod 71 is square, valve rod 71 is located the inside of slider 14, the top fixedly connected with slider limiting plate 16 of valve rod 71, be connected through screw 15 between slider limiting plate 16 and the valve rod 71.

A valve flap support 72 is arranged in the valve body 1, the valve rod 71 is connected with the valve flap support 72 in a screwing manner through threads, the side surface of the valve flap support 72 is movably connected with five valve flaps 73 through pins 74, an arc-shaped rack is arranged on one side of each valve flap 73, the valve flap support 72 rotates, then the inner gear rings 75 rotate, then the valve flaps 73 rotate through the attachment of the arc-shaped racks on the valve flaps 73 to regulate the flow of the gate valve, an arc-shaped plane is arranged at one end, far away from the arc-shaped racks, of each valve flap 73, the valve flaps 73 are sealed through arc-shaped curved surface nesting, circulation holes are sealed to prevent liquid circulation, a plurality of shunting holes are formed in the valve flap support 72 corresponding to the valve flaps 73 to facilitate the circulation of the slide ways, the inner gear rings 75 are arranged in the valve flap support 72 and meshed with the arc-shaped racks to, And (5) controlling.

The valve rod 71, the valve clack bracket 72, the pin 74, the valve clack 73 and the inner gear ring 75 form a valve core 7 for controlling the circulation of a gate valve, a valve core sealing piece 8 is arranged on the inner wall of the valve body 1, the valve core sealing piece 8 is positioned at a convex shoulder of the valve body 1, grooves are respectively arranged at the front end and the rear end of the valve body 1, the inner parts of the grooves are fixedly connected with a valve body sealing ring 2, a valve core sealing ring 9 is arranged at one end of the valve core sealing piece 8 far away from the valve body 1, the valve core sealing piece 8 and the valve core sealing ring 9 are both positioned between the valve body 1 and the valve core 7, the valve core sealing ring 9, the valve core sealing ring 8 and the valve clack 73 realize the sealing between an inlet 101 and an outlet 102 in a closed state, the left side and the right side of the valve body 1 are respectively provided with an, sealing between the valve body and the pipeline is realized; the valve body sealing member 3 has the same inner diameter as that of the valve element 7 in the fully opened state.

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. A multi-valve adjustable gate valve, comprising a valve body (1), characterized in that: the upper surface of the valve body (1) is fixedly connected with a valve cover (4), and the upper surface of the valve cover (4) is fixedly connected. An electric cylinder (10) is fixedly connected to the surface, a guide rod is fixedly connected to the output end of the electric cylinder (10), and a slider nut (12) is fixedly connected to the end of the guide rod away from the electric cylinder (10). A slider (14) is movably connected to the inside of the slider nut (12) through a pin shaft (13), and a valve rod (71) is movably connected to the inside of the slider (14). A slider limit plate (16) is fixedly connected, and the slider limit plate (16) and the valve stem (71) are connected by screws (15);

The valve body (1) is provided with a valve disc support (72) inside, the valve stem (71) is connected with the valve disc support (72) by screwing, and the side surface of the valve disc support (72) passes through The pin (74) is movably connected with a valve flap (73), the number of the valve flaps (73) is five, one side of the valve flap (73) is provided with an arc-shaped rack, and the valve flap bracket (72) ) is provided with an inner gear ring (75), and the inner gear ring (75) is engaged with the arc-shaped rack;

The valve stem (71), the valve disc support (72), the pin (74), the valve disc (73), and the inner gear ring (75) form a valve core (7), and the inner wall of the valve body (1) is provided with A valve core seal (8) is provided with a valve core seal (9) at one end of the valve core seal (8) away from the valve body (1), and the valve core seal (8) is connected to the valve core seal ( 9) are located between the valve body (1) and the valve core (7).

2. A multi-valve adjustable gate valve according to claim 1, characterized in that: the valve cover (4) comprises a valve cover base, the upper surface of the valve cover base is provided with a square table, the valve cover The upper surface of the cover base and located on the right side of the square table is provided with an arched shell, the valve cover (4) is fixedly connected to the valve body (1) by bolts (5) and nuts (6), and the upper part of the square table is fixedly connected with the valve body (1). The surface is fixedly connected with the electric cylinder (10).

3. The multi-valve adjustable gate valve according to claim 2, wherein the square table is fixedly connected with the valve body (1) through the valve cover screw (11), and the lower surface of the square table is provided with There is a triangular rib plate, and one end of the triangular rib plate away from the square table is fixedly connected with the valve body (1).

4. A multi-valve adjustable gate valve according to claim 1, characterized in that: the cross-sectional shape of the valve stem (71) is square, and the valve stem (71) is located inside the slider (14) .

5. A multi-valve adjustable gate valve according to claim 1, characterized in that: the left and right sides of the valve body (1) are respectively provided with an inlet (101) and an outlet (102), the inlet (102) 101), the center lines of the outlet (102) and the valve core (7) are located on the same horizontal line, the inner walls of the inlet (101) and the outlet (102) are provided with a valve body sealing ring (2), and the valve body sealing ring A valve body seal (3) is provided inside (2).

6. A multi-valve adjustable gate valve according to claim 1, characterized in that: one end of the valve flap (73) away from the arc-shaped rack is provided with an arc plane, and the valve flap (73) is The valve disc bracket (72) is provided with a plurality of shunt holes corresponding to the valve disc (73).

7. A multi-valve adjustable gate valve according to claim 2, characterized in that: the inside of the square table is arranged in a square hole, and the inside of the square hole is connected with the valve stem (71), the slider (14) ) active connection.

8. A multi-valve adjustable gate valve according to claim 1, characterized in that: the valve core seal (8) is located at the shoulder of the valve body (1), and the valve body (1) The front and rear ends are provided with grooves, and the inside of the grooves is fixedly connected with the valve body sealing ring (2).