CN212868546U

CN212868546U - Worm-drive double-eccentric half-ball valve

Info

Publication number: CN212868546U
Application number: CN202021502207.6U
Authority: CN
Inventors: 周书光
Original assignee: Henan High And Medium Pressure Valve Co ltd
Current assignee: Henan High And Medium Pressure Valve Co ltd
Priority date: 2020-07-27
Filing date: 2020-07-27
Publication date: 2021-04-02
Anticipated expiration: 2030-07-27

Abstract

The utility model provides a two eccentric half-ball valves of worm drive, its characterized in that of valve body, the valve rod adopts hollow rod, be fixed with quick-witted case on the valve gap, machine incasement portion is fixed with first roof and second roof and rotates respectively on first roof and the second roof and installs first turbine and second turbine, it installs first worm and second worm to rotate on the machine case, be fixed with a plurality of splines on the bull stick and the valve rod is inside to be equipped with a plurality of spline grooves, the inner circle of first turbine and second turbine is fixed with first bevel gear ring and second taper gear ring respectively, the quick-witted case is stretched out to bull stick one end, be fixed with first bevel gear and second bevel gear and the relative one side fixed connection of first bevel gear and second bevel gear on the bull stick. Can switch at will between manual and electronic, avoid can't operating the valve under the circumstances of not having the electricity to can save the power of operating the valve, excellent in use effect, convenience simple to use.

Description

Worm-drive double-eccentric half-ball valve

Technical Field

The utility model relates to the technical field of valve equipment, especially, relate to two eccentric half-ball valves of worm drive.

Background

The ball valve for cutting off medium in pipeline includes eccentric semi-ball valve, which is suitable for controlling and conveying liquid, gas or slag and other medium in conveying pipeline and has the main functions of cutting off, distributing and changing the flow speed and direction of medium in pipeline. The double-eccentric half ball valve is researched on the basis of the eccentric half ball valve, is an industrial production part, is similar to a three-eccentric hard sealing butterfly valve, and has the advantages of convenience in operation, no friction in the opening process, zero leakage, long service life and the like.

When the existing hemispherical valve is used, the rotating valve rod is adopted to drive the ball valve to rotate, so that the opening and closing of the valve are realized, the operation is laborious, and particularly when the pressure in the pipe is large. The existing half-ball valve is respectively electric and manual, and is not integrated with electric and manual, so that the use is inconvenient, and meanwhile, no misoperation prevention measure exists in the existing half-ball valve regardless of electric and manual operation, so that the valve is possibly subjected to misoperation.

SUMMERY OF THE UTILITY MODEL

To the above situation, for overcoming the defect of prior art, the utility model aims at providing a worm drive double-eccentric half-ball valve, through worm drive, saved the power when operating the valve, manual and electronic arbitrary switching has the function of preventing maloperation simultaneously, improves the security when valve uses.

The worm-driven double-eccentric half ball valve is characterized in that a valve rod is fixed on the valve core and adopts a hollow rod, a case is fixed on the valve cover, one end, far away from the valve core, of the valve rod extends into the case, a first top plate and a second top plate are fixed inside the case, a first worm wheel and a second worm wheel are respectively and rotatably installed on the first top plate and the second top plate, the first worm wheel and the second worm wheel are coaxially installed with the valve rod, a first worm and a second worm are rotatably installed on the case, the first worm and the second worm both extend out of the case, a rotating handle is fixed on one end, extending out of the case, of the first worm, a motor is connected to one end, extending out of the case, of the second worm, the first worm and the second worm are respectively engaged with the first worm wheel and the second worm wheel, the novel valve rod is characterized in that a rotating rod and a coaxial line between the rotating rod and the valve rod are arranged in a sliding mode inside the valve rod, a plurality of splines and a plurality of spline grooves are formed in the rotating rod, the splines correspond to the spline grooves in number and positions one by one, the splines and the spline grooves are in sliding fit respectively, a first bevel gear ring and a second bevel gear ring are fixed to inner rings of the first turbine and the second turbine respectively, one end, far away from the valve rod, of the rotating rod penetrates through a second top plate, the second bevel gear ring, the first bevel gear ring, one end, far away from the valve rod, of the rotating rod extends out of a case, a first bevel gear and a second bevel gear are fixed to the rotating rod, one face, opposite to the first bevel gear and the second bevel gear, of the first bevel gear and the second bevel gear are located between the first turbine and the second turbine.

Preferably, the rotating rod is provided with a first through hole, a second through hole and a third through hole, and a stop pin is matched in the first through hole.

Preferably, the case is rotatably provided with a supporting block on the surface, which is close to the extension of the rotating rod, and a pin blocking groove is formed in the supporting block.

The utility model has the advantages that: can be random carry out quick switching between manual and electronic to have good chucking effect after switching, thereby avoid producing the condition of skidding when rotating the valve, improved the result of use of valve. The condition of valve rod maloperation can effectually be avoided when using to the security when having improved the valve use.

Drawings

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

Fig. 2 is a schematic structural diagram of the first bevel gear ring of the present invention.

Fig. 3 is a schematic structural diagram of a second bevel gear ring of the present invention.

Detailed Description

The following describes the embodiments of the present invention in further detail with reference to the accompanying drawings.

The worm-drive double-eccentric half ball valve is provided by the figures 1, 2 and 3, and comprises a valve body 1 and a valve seat 3, wherein a valve cover 8 is detachably mounted on the valve body 1, the valve seat 3 is fixed inside the valve body 1, and a valve core 2 is arranged on the valve seat 3, and is characterized in that a valve rod 4 is fixed on the valve core 2, the valve rod 4 adopts a hollow rod, a case 9 is fixed on the valve cover 8, one end of the valve rod 4, far away from the valve core 2, extends into the case 9, a first top plate 11 and a second top plate 10 are fixed inside the case 9, a first turbine 15 and a second turbine 13 are respectively rotatably mounted on the first top plate 11 and the second top plate 10, the first turbine 15 and the second turbine 13 are coaxially mounted with the valve rod 4, a first worm 14 and a second worm 12 are rotatably mounted on the case 9, the first worm 14 and the second worm 12 both extend out of the case 9, a rotating handle 18 is fixed at one end of the first worm 14, which extends out of the case 9, and a second worm 12 is connected with one end The first worm 14 and the second worm 12 are respectively engaged with the first turbine 15 and the second turbine 13, the rotating rod 7 is slidably mounted inside the valve rod 4, the rotating rod 7 and the valve rod 4 are coaxially arranged, the rotating rod 7 is fixed with a plurality of splines 6, the valve rod 4 is internally provided with a plurality of spline grooves 5, the splines 6 and the spline grooves 5 are in one-to-one correspondence in number and position, the splines 6 and the spline grooves 5 are in sliding fit respectively, the inner rings of the first turbine 15 and the second turbine 13 are respectively fixed with a first bevel gear ring 24 and a second bevel gear ring 25, one end of the rotating rod 7 far away from the valve rod 4 sequentially penetrates through the second top plate 10, the second bevel gear ring 25, the first bevel gear ring 24, the first top plate 11 and one end of the rotating rod 7 far away from the valve rod 4 to extend out of the case 9, the rotating rod 7 is fixed with a first bevel gear 16 and a second bevel gear 17, and one opposite surface of the first bevel gear 16 and the second bevel gear 17 are fixedly connected, the first bevel gear 16 and the second bevel gear 17 are located between the first worm gear 15 and the second worm gear 13.

When the device is used, firstly, the valve is connected in series to a pipeline to be used, when the valve needs to be closed under the condition of electricity, the rotating rod 7 is pushed downwards, so that the second bevel gear 17 moves downwards, so that the second bevel gear 17 and the second bevel gear ring 25 are clamped, at the moment, the motor 19 is started, the motor 19 rotates to drive the second worm 12 to rotate, the second worm 13 rotates through the meshing between the second worm 12 and the second worm 13, so that the second bevel gear ring 25 fixed inside the second worm 13 rotates, at the moment, because the second bevel gear 17 and the second bevel gear ring 25 are clamped, which is equivalent to the fixed connection between the second bevel gear 17 and the second bevel gear ring 25, the second bevel gear 17 is driven to rotate when the second bevel gear ring 25 rotates, so that the rotating rod 7 is driven to rotate, the bull stick 7 rotates through the spline 6 cooperation between bull stick 7 and the valve rod 4 for can only remove along the axis direction of valve rod 4 between bull stick 7 and the valve rod 4, thereby make bull stick 7 drive valve rod 4 rotate when the pivoted, thereby can realize opening and closing the valve. When no power supply is available and the valve needs to be closed, the rotating rod 7 is pushed downwards, so that the first bevel gear 16 moves downwards, the first bevel gear 16 and the first bevel gear ring 24 are clamped, the rotating handle 18 is rotated at the moment, the rotating handle 18 rotates to drive the first worm 14 to rotate, the first worm gear 15 rotates through the meshing between the first worm gear 14 and the first worm gear 15, so that the first bevel gear ring 24 fixed inside the first worm gear 15 rotates, at the moment, the first bevel gear 16 and the first bevel gear ring 24 are clamped, which is equivalent to the fixed connection between the first bevel gear 16 and the first bevel gear ring 24, so that the first bevel gear ring 24 drives the first bevel gear 16 to rotate when rotating, so that the rotating rod 7 rotates, the rotating rod 7 is matched with the valve rod 4 through the spline 6 between the rotating rod 7 and the valve rod 4, so that the rotating rod 7 and the valve rod 4 can only move along the axial direction of the valve rod 4, thereby make the bull stick 7 drive valve rod 4 and rotate when the rotation to can realize opening and closing the valve. The valve can be switched between manual operation and electric operation at will, and the valve is good in use effect and free of slipping. When the circuit or the motor 19 breaks down, the valve can still be opened and closed quickly, and the force is saved through worm transmission and is not influenced by the pressure intensity of the pipeline. When the valve is not required to be operated, the first bevel gear 16 and the second bevel gear 17 are arranged between the first bevel gear ring 24 and the second bevel gear ring 25 and are not in contact with the first bevel gear ring 24 and the second bevel gear ring 25, so that the condition of misoperation of the valve can be prevented, and the safety of the valve in use is improved.

The rotating rod 7 is provided with a first through hole 20, a second through hole 23 and a third through hole 21, and a stop pin 26 is matched in the first through hole 20.

In order to make the rotating rod 7 have better effect in use, three through holes are provided, when the stop pin 26 is located inside the first through hole 20, the second bevel gear 17 and the second bevel gear ring 25 are engaged with each other, when the stop pin 26 is located inside the second through hole 23, the first bevel gear 16 and the first bevel gear ring 24 are engaged with each other, and when the stop pin 26 is located inside the third through hole 21, the first bevel gear 16 and the second bevel gear 17 are located between the first bevel gear ring 24 and the second bevel gear ring 25, so that the stability of the rotating rod 7 at different positions is further improved, and the use effect of the valve is improved.

A supporting block 22 is rotatably mounted on the side, which is close to the rotating rod 7, of the case 9, and a pin blocking groove is formed in the supporting block 22.

When the rotating rod 7 rotates, the stop pin 26 inevitably follows the rotation, in order to reduce the abrasion between the stop pin 26 and the case 9, the supporting block 22 is rotatably installed on the case 9, and the stop pin groove is formed in the supporting block 22, the stop pin 26 is arranged in the stop pin groove during use, the supporting block 22 is driven to follow the rotation when the rotating rod 7 rotates, the abrasion between the stop pin 26 and the case 9 is avoided, and the use effect of the valve is further improved. In order to further improve the use effect, permanent magnets can be fixed on one surface of the first bevel gear 16, which is away from the second bevel gear 17, and one surface of the first turbine 15, which is towards the second turbine 13, so that the matching of the first bevel gear 16 and the first bevel gear ring 24 can be more stable.

The above-mentioned embodiments are not intended to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art without departing from the design concept of the present invention should be included in the protection scope defined by the claims of the present invention.

Claims

1. The utility model provides a two eccentric half-ball valves of worm drive, includes valve body (1) and disk seat (3), dismantles on valve body (1) and installs valve gap (8), and the inside of valve body (1) is fixed with disk seat (3) and is equipped with case (2) on disk seat (3), its characterized in that, be fixed with valve rod (4) and valve rod (4) on case (2) and adopt hollow rod, be fixed with quick-witted case (9) and valve rod (4) on valve gap (8) and stretch into quick-witted case (9) inside, quick-witted case (9) internal fixation has first roof (11) and second roof (10) and first roof (11) and second roof (10) on rotate respectively and install first turbine (15) and second turbine (13), install the coaxial line between first turbine (15) and second turbine (13) and valve rod (4), rotate on quick-witted case (9) and install first worm (14) and second worm (12) and first worm (14) and second worm (14) and valve rod (4) The second worms (12) extend out of the case (9), a rotating handle (18) is fixed at one end of the first worm (14) extending out of the case (9), a motor (19) is connected at one end of the second worm (12) extending out of the case (9), the first worm (14) and the second worm (12) are respectively meshed with the first turbine (15) and the second turbine (13), a rotating rod (7) is slidably mounted inside the valve rod (4), the rotating rod (7) and the valve rod (4) are coaxially arranged, a plurality of splines (6) are fixed on the rotating rod (7), a plurality of spline grooves (5) are arranged inside the valve rod (4), the splines (6) correspond to the spline grooves (5) in number and position one to one, the splines (6) and the second spline grooves (5) are respectively in sliding fit, a first gear ring (24) and a second gear ring (25) are respectively fixed on inner rings of the first turbine (15) and the second turbine (13), one end, far away from the valve rod (4), of the rotating rod (7) sequentially penetrates through the second top plate (10), the second bevel gear ring (25), the first bevel gear ring (24), the first top plate (11) and one end, far away from the valve rod (4), of the rotating rod (7) to extend out of the case (9), the rotating rod (7) is fixedly provided with a first bevel gear (16) and a second bevel gear (17), one opposite side of the first bevel gear (16) and the second bevel gear (17) is fixedly connected, and the first bevel gear (16) and the second bevel gear (17) are located between the first turbine (15) and the second turbine (13).

2. The worm-drive double-eccentric half-ball valve as claimed in claim 1, wherein the rotating rod (7) is provided with a first through hole (20), a second through hole (23) and a third through hole (21), and a stop pin (26) is matched in the first through hole (20).

3. The worm-drive double-eccentric half-ball valve as claimed in claim 1, characterized in that a supporting block (22) is rotatably mounted on the side of the case (9) near the extension of the rotating rod (7) and a pin retaining groove is formed inside the supporting block (22).