CN212080204U

CN212080204U - Low-torque valve

Info

Publication number: CN212080204U
Application number: CN202020205402.6U
Authority: CN
Inventors: 张晴利; 刘广和; 查金平; 江鸿; 王菁
Original assignee: Anhui Tongdu Flow Technology Co ltd
Current assignee: Anhui Tongdu Flow Technology Co ltd
Priority date: 2020-02-25
Filing date: 2020-02-25
Publication date: 2020-12-04
Anticipated expiration: 2030-02-25

Abstract

The utility model relates to the technical field of valves, and discloses a low-torque valve, which comprises a valve body, wherein the right side of the valve body is fixedly connected with a set screw, the top of the valve body is fixedly connected with a shaft sealing cover, the inside of the shaft sealing cover is rotationally connected with a valve rod, the top of the valve rod is fixedly connected with a hand wheel, the bottom of the valve rod is in threaded connection with a valve rod nut, the bottom of the valve rod nut is fixedly connected with a flashboard, the inside of the flashboard is fixedly connected with a rotating rod, the outer surface of the rotating rod is rotationally connected with a roller, the low-torque valve is used by matching the hand wheel, the valve rod, the first rotating wheel, the valve rod nut and a gate, the valve rod rotates to drive the first rotating wheel and the valve rod nut to move, the valve rod nut rotates to drive the gate to ascend or, the movement of the gate drives the roller to move, thereby reducing the friction force of the movement of the gate.

Description

Low-torque valve

Technical Field

The utility model relates to the technical field of valves, specifically a low moment of torsion valve.

Background

Valves are control components in fluid delivery systems, which are pipe fittings used to open and close pipes, control flow direction, regulate and control parameters, temperature, pressure and flow of the delivered media, and can be classified into shut-off valves, check valves, regulating valves, gate valves, etc. according to their function.

At present, the existing gate valve is the most commonly used one in the daily valve of people, and the gate valve drives the flashboard through the valve rod to do lifting motion, and when the valve is opened or closed, the flashboard guide rib and the valve body groove can often collide with each other, so that the downward friction force of the gate is increased, and the problems of labor waste in opening, large torque and the like are caused.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides a low moment of torsion valve possesses the advantage that reduces frictional force, has solved the problem of the decurrent frictional force of gate.

(II) technical scheme

For the purpose of realizing above-mentioned reduction frictional force, the utility model provides a following technical scheme: a low-torque valve comprises a valve body, wherein the right side of the valve body is fixedly connected with a set screw, the top of the valve body is fixedly connected with a shaft sealing cover, a valve rod is rotatably connected inside the shaft sealing cover, a hand wheel is fixedly connected at the top of the valve rod, a valve rod nut is connected at the bottom of the valve rod through a thread, the bottom of the valve rod nut is fixedly connected with a flashboard, the interior of the flashboard is fixedly connected with a rotating rod, the outer surface of the rotating rod is rotatably connected with a roller, the outer surface of the valve rod is fixedly connected with a second rotating wheel, the outer surface of the second rotating wheel is rotatably connected with a connecting belt, the right side of the connecting belt is rotatably connected with the first rotating wheel, a threaded rod is fixedly connected inside the first rotating wheel, the top of the threaded rod is rotatably connected with a bearing, the bottom threaded connection of threaded rod has the nut, the bottom fixedly connected with fixed plate of nut.

Preferably, the bearing is fixedly connected with the valve body, so that the bearing can reduce the rotating friction force of the threaded rod.

Preferably, the roller is positioned inside the shutter, so that friction force of movement of the shutter is reduced.

Preferably, the fixed plate is fixedly connected with the gate plate, so that the friction force of the downward movement of the gate plate is reduced.

Preferably, the gate is connected with the valve body in a sealing mode, and water permeation is reduced.

Preferably, the copper alloy is build-up welded around the gate plate framework, so that the friction force is reduced, and the torque is reduced.

Preferably, the periphery of the valve body groove is embedded into a stainless steel plate and fixed by a set screw, the surface of the steel plate is smooth, the friction force is small, and the torque is small.

(III) advantageous effects

Compared with the prior art, the utility model provides a low moment of torsion valve possesses following beneficial effect:

1. this low moment of torsion valve uses through the cooperation of hand wheel, valve rod, runner one, valve-stem nut, gate to drive the valve rod through rotating the hand wheel and rotate, the valve rod rotates and drives runner one, the motion of valve-stem nut, and valve-stem nut rotates and drives the gate and can rise or descend along the guide way in the valve body die cavity, and the gate does not produce simultaneously and rocks, and the gate motion drives the gyro wheel motion, thereby reduces the effect of the frictional force of gate motion.

2. This low moment of torsion valve, through the peripheral stainless steel board of embedding of valve body recess and with holding screw fixed, because the steel sheet surface is more smooth, frictional force is little, and the moment of torsion is just also little, and through the copper alloy of build-up welding around the flashboard skeleton to reduce frictional force, reduce the moment of torsion, dismantle the convenience through the device installation simultaneously, thereby practice thrift the efficiency that the assemble duration increases.

Drawings

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

FIG. 2 is a partial schematic view of the structure of the present invention;

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

In the figure: 1-valve body, 2-flashboard, 3-rotating rod, 4-roller, 5-valve rod nut, 6-valve rod, 7-shaft sealing cover, 8-handwheel, 9-set screw, 10-bearing, 11-first rotating wheel, 12-connecting band, 13-second rotating wheel, 14-threaded rod, 15-nut and 16-fixing plate.

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. 1-3, a low torque valve comprises a valve body 1, a stainless steel plate is embedded in the periphery of a groove of the valve body 1 and fixed by a set screw 9, the surface of the steel plate is smooth, the friction force is small, and the torque is small, the right side of the valve body 1 is fixedly connected with the set screw 9, the top of the valve body 1 is fixedly connected with a shaft sealing cover 7, the inside of the shaft sealing cover 7 is rotatably connected with a valve rod 6, the top of the valve rod 6 is fixedly connected with a hand wheel 8, the bottom of the valve rod 6 is in threaded connection with a valve rod nut 5, the bottom of the valve rod nut 5 is fixedly connected with a gate 2, the gate 2 is in sealed connection with the valve body 1, the water penetration is reduced, copper alloy is welded on the periphery of a gate 2 framework, the friction force and the torque are reduced, the rotating rod 3 is fixedly connected to the inside of the gate 2, the outer, the outer fixed surface of valve rod 6 is connected with runner two 13, the outer surface of runner two 13 rotates and is connected with connecting band 12, the right side of connecting band 12 rotates and is connected with runner one 11, the inside fixedly connected with threaded rod 14 of runner one 11, the top of threaded rod 14 rotates and is connected with bearing 10, bearing 10 and valve body 1's fixed connection, be convenient for bearing 10 reduces threaded rod 14 pivoted frictional force, threaded rod 14's bottom threaded connection has nut 15, the bottom fixedly connected with fixed plate 16 of nut 15, fixed plate 16 and flashboard 2 fixed connection, be convenient for reduce the frictional force of flashboard 2 downstream.

The working principle is that a hand wheel 8 is rotated to drive a valve rod 6 to rotate, the valve rod 6 rotates to drive a first rotating wheel 11 and a valve rod nut 5 to move, the valve rod nut 5 rotates to drive a gate 2 to ascend or descend along a guide groove in a valve body cavity, meanwhile, the gate 2 does not shake, the gate 2 moves to drive a roller 4 to move, so that the friction force of the gate 2 to move is reduced, meanwhile, a second rotating wheel 13 rotates to drive a connecting belt 12 and the first rotating wheel 11 to rotate, the first rotating wheel 11 rotates to drive a threaded rod 14 to rotate, the threaded rod 14 rotates to drive a nut 15 to move, the nut 15 moves to drive a fixing plate 16, the fixing plate 16 moves to drive the gate 2 to move, so that the power of the gate 2 to move downwards is increased, the downward moving speed of the gate 2 is increased, the friction.

In conclusion, the low-torque valve is characterized in that a hand wheel 8, a valve rod 6, a rotating wheel I11, a valve rod nut 5 and a gate 2 are matched for use, so that the valve rod 6 is driven to rotate by rotating the hand wheel 8, the rotating wheel I11 and the valve rod nut 5 are driven to move by rotating the valve rod 6, the gate 2 can ascend or descend along a guide groove in a valve body cavity by rotating the valve rod nut 5, meanwhile, the gate 2 does not shake, the roller 4 is driven to move by moving the gate 2, and therefore the friction force of the movement of the gate 2 is reduced, the low-torque valve has the advantages that the stainless steel plate is embedded into the periphery of a groove of a valve body 1 and is fixed by a set screw 9, because the surface of the steel plate is smooth, the friction force is small, the torque is small, copper alloy is piled and welded around a framework of the gate 2, so that the, thereby saving increased efficiency in assembly time.

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 low torque valve comprising a valve body (1), characterized in that: the right side fixedly connected with holding screw (9) of valve body (1), valve body (1) top fixedly connected with axle closing cap (7), the inside of axle closing cap (7) is rotated and is connected with valve rod (6), the top fixed connection hand wheel (8) of valve rod (6), the bottom threaded connection of valve rod (6) has valve rod nut (5), the bottom fixedly connected with flashboard (2) of valve rod nut (5), the inside fixedly connected with bull stick (3) of flashboard (2), the surface rotation of bull stick (3) is connected with gyro wheel (4), the surface fixedly connected with runner two (13) of valve rod (6), the surface rotation of runner two (13) is connected with connecting band (12), the right side rotation of connecting band (12) is connected with runner one (11), the inside fixedly connected with threaded rod (14) of runner one (11), the top of threaded rod (14) is rotated and is connected with bearing (10), the bottom threaded connection of threaded rod (14) has nut (15), the bottom fixedly connected with fixed plate (16) of nut (15).

2. A low torque valve as defined in claim 1, wherein: the bearing (10) is fixedly connected with the valve body (1).

3. A low torque valve as defined in claim 1, wherein: the roller (4) is positioned inside the gate plate (2).

4. A low torque valve as defined in claim 1, wherein: the fixed plate (16) is fixedly connected with the flashboard (2).

5. A low torque valve as defined in claim 1, wherein: the flashboard (2) is connected with the valve body (1) in a sealing mode.

6. A low torque valve as defined in claim 1, wherein: and copper alloy is welded around the framework of the flashboard (2) in a surfacing mode.

7. A low torque valve as defined in claim 1, wherein: the periphery of the groove of the valve body (1) is embedded into a stainless steel plate and fixed by a set screw (9).