CN112145711A - Butterfly valve and use method thereof - Google Patents

Abstract

The invention discloses a butterfly valve and a use method thereof, the butterfly valve comprises a valve body, a channel is arranged in the valve body, a lower rotating shaft and an upper rotating shaft which are coaxially arranged are rotatably connected in the valve body, butterfly plates for controlling the on-off of the channel are fixedly arranged in the channel on the upper rotating shaft and the lower rotating shaft, an upper protruding block is arranged at the upper end of the valve body on the outer side of the upper rotating shaft, an upper shaft sleeve sleeved on the upper rotating shaft is arranged at the upper end of the upper protruding block, a casing is fixedly arranged at the upper end of the upper shaft sleeve, a first transmission assembly and a second transmission assembly which are connected with the upper rotating shaft are arranged in the casing; the upper end of the upper rotating shaft extends out of the shell and is fixedly provided with a handle assembly; the lower end of the valve body is provided with a lower convex block at the outer side of the lower rotating shaft, and a positioning assembly for positioning the lower rotating shaft is arranged in the lower convex block; the butterfly valve is not only reasonable in structure, but also can realize two control modes of electric control and manual control.

Description

Butterfly valve and use method thereof

Technical Field

The invention belongs to the technical field of pipeline valves, and particularly relates to a butterfly valve and a using method thereof.

Background

The butterfly valve generally includes a valve seat for connecting and installing with a pipeline device, a valve body fixedly installed in the valve seat, a valve rod penetrating the valve seat and the valve body and protruding the valve seat, a butterfly plate fixedly sleeved on the valve rod, and a driving component fixedly installed above the valve seat for driving the valve rod to rotate. Along with the development of electric power equipment, a large number of manually controlled butterfly valves are replaced by electrically controlled butterfly valves, the traditional manual butterfly valves are inconvenient to operate and low in use precision when in use, the electric control butterfly valve can be intelligently and automatically controlled, but has the limitation of use conditions, sometimes needs to switch between manual control and electric control, however, most of the existing butterfly valves with manual and electric control only deal with the situation that electric operation cannot be carried out when electric power is lost and the control is carried out manually, such a single control requires a complicated structure and is liable to be operated erroneously, and if the manual operation is performed after a power failure, the manual control device is damaged if the power is recovered, and the operation of personnel often has carelessness and carelessness, is difficult to control when wholly using, simultaneously is not safe enough and intelligent, still has the space that awaits improvement.

Disclosure of Invention

The invention aims to provide a gate valve which is reasonable in structure and can realize two control modes of electric control and manual control.

In order to achieve the purpose, the invention provides the following technical scheme:

a butterfly valve comprises a valve body, wherein a channel is arranged in the valve body, a lower rotating shaft and an upper rotating shaft which are coaxially arranged are rotatably connected in the valve body, butterfly plates for controlling the opening and closing of the channel are fixedly arranged in the channel on the upper rotating shaft and the lower rotating shaft, an upper protruding block is arranged at the upper end of the valve body on the outer side of the upper rotating shaft, an upper shaft sleeve sleeved on the upper rotating shaft is arranged at the upper end of the upper protruding block, a casing is fixedly arranged at the upper end of the upper shaft sleeve, a first transmission assembly and a second transmission assembly which are connected with the upper rotating shaft are arranged in the casing, an electric assembly is arranged on the casing and is used for driving the upper; the upper end of the upper rotating shaft extends out of the shell and is fixedly provided with a handle assembly, and the handle assembly is used for driving the upper rotating shaft to rotate through a second transmission assembly; the lower end of the valve body is provided with a lower convex block on the outer side of the lower rotating shaft, and a positioning assembly for positioning the lower rotating shaft is arranged in the lower convex block.

Further, first transmission assembly includes first bevel gear, first bevel gear rotates to be connected in last pivot and is located the casing, first bevel gear's lower extreme is equipped with first turn trough, fixed mounting has the first carousel that is located first turn trough in the last pivot, the outside of first carousel is equipped with first notch, the inside wall of first turn trough is equipped with a plurality of first thorn grooves along circumference interval uniformly, be equipped with first pawl in the first notch and be used for forcing first pawl to press to the first spring leaf in first thorn groove.

Furthermore, the electric component comprises a motor installed on the casing, and an output shaft of the motor extends into the casing and is fixedly provided with a second bevel gear meshed with the first bevel gear.

Further, the second transmission assembly comprises a sleeve shaft, the sleeve shaft is rotatably connected to the outer side of the upper end of the upper rotating shaft, the lower end of the sleeve shaft extends into the casing and is provided with a rotating block, the lower end of the rotating block is provided with a second rotating groove, a second rotating disc located in the second rotating groove is fixedly mounted on the upper rotating shaft, a second notch is formed in the outer side of the second rotating disc, a plurality of second ratchet grooves are uniformly formed in the inner side wall of the second rotating groove at intervals along the circumferential direction, and a second pawl and a second spring piece used for forcing the second pawl to press to the second ratchet grooves are arranged in the second notch.

Furthermore, the handle assembly comprises a handle rod fixedly mounted on the sleeve shaft and a positioning disc fixedly mounted at the upper end of the casing, wherein the handle rod is provided with a positioning rod and a return spring for forcing one end of the positioning rod to be pressed on the outer side of the circumference of the positioning disc.

Furthermore, the positioning assembly comprises an electromagnet arranged on the outer side of the circumference of the lower convex block, a lock rod is arranged in the electromagnet, one end of the lock rod extends into the lower convex block, four positioning holes are uniformly arranged at intervals in the circumferential direction of one end of the lower rotating shaft extending into the lower convex block, and the lower rotating shaft is fixed when the lock rod extends into the positioning holes; the other end of the lock rod is provided with a push rod extending out of the electromagnet, the lock rod is driven to leave the positioning hole when the push rod is pulled outwards, and the lock rod is driven to be inserted into the positioning hole when the push rod is pushed inwards.

The invention also provides a using method of the butterfly valve, when the electric regulating butterfly valve is opened and closed, the electromagnet is firstly controlled to be electrified, and when the electromagnet is electrified, the lock rod is separated from the positioning hole on the lower rotating shaft; secondly, controlling an electric component to be electrified, driving an upper rotating shaft to rotate along one direction by the electric component through a first transmission component, driving a butterfly plate to open or close a channel when the upper rotating shaft rotates, controlling the electric component and an electromagnet to be powered off when the butterfly plate is opened or closed, and inserting a lock rod into a positioning hole of a lower rotating shaft;

when the manual adjusting butterfly valve is opened and closed, the push rod is pulled outwards at first to drive the lock rod to leave the positioning hole; and secondly, rotating the handle assembly, driving the upper rotating shaft to rotate along one direction through the second transmission assembly, driving the butterfly plate to open or close the channel when the upper rotating shaft rotates, and driving the locking rod to be inserted into the positioning hole when the push rod is pushed inwards when the butterfly plate is opened or closed.

Advantageous effects

Compared with the prior art, the technical scheme of the invention has the following advantages:

the invention is provided with the electric component and the handle component, realizes coexistence of two driving modes, and is more flexible to use, and the electric regulation and the manual regulation can be directly converted from the electric control to the manual control or from the manual control to the electric control without a separate switching mechanism; when the electric motor is used, the electric drive and the manual drive are independent and do not influence each other, the use is more coherent and safe, and even if the electric motor is electrified suddenly during manual operation, the motor cannot be damaged.

Drawings

FIG. 1 is a cross-sectional structural view of the present invention;

FIG. 2 is a sectional view taken along line A-A of FIG. 1;

fig. 3 is a cross-sectional view taken along line B-B of fig. 1.

Detailed Description

Referring to fig. 1-3, a butterfly valve includes a valve body 1, a passage is provided in the valve body 1, a lower rotating shaft 21 and an upper rotating shaft 3 which are coaxially provided are rotatably connected in the valve body 1, a butterfly plate 2 for controlling the opening and closing of the passage is fixedly provided in the passage between the upper rotating shaft 3 and the lower rotating shaft 21, an upper protrusion 1a is provided at the upper end of the valve body 1 at the outer side of the upper rotating shaft 3, an upper shaft sleeve 4 sleeved on the upper rotating shaft 3 is provided at the upper end of the upper protrusion 1a, a housing 5 is fixedly provided at the upper end of the upper shaft sleeve 4, a first transmission assembly and a second transmission assembly connected to the upper rotating shaft 3 are provided in the housing 5, and an electric assembly is provided on the housing 5 and is used for driving the upper rotating shaft 3 to rotate; the upper end of the upper rotating shaft 3 extends out of the shell 5 and is fixedly provided with a handle assembly, and the handle assembly is used for driving the upper rotating shaft 3 to rotate through a second transmission assembly; the lower end of the valve body 1 is provided with a lower protruding block 1b on the outer side of the lower rotating shaft 21, and a positioning assembly for positioning the lower rotating shaft 21 is arranged in the lower protruding block 1 b.

The first transmission assembly comprises a first bevel gear 8, the first bevel gear 8 is rotatably connected to the upper rotating shaft 3 and is located in the machine shell 5, a first rotating groove 8a is formed in the lower end of the first bevel gear 8, a first rotating disc 80 located in the first rotating groove 8a is fixedly mounted on the upper rotating shaft 3, a first notch 8b is formed in the outer side of the first rotating disc 80, a plurality of first ratchet grooves 8c are uniformly formed in the inner side wall of the first rotating groove 8a at intervals along the circumferential direction, and a first pawl 81 and a first spring piece 82 used for forcing the first pawl 81 to press towards the first ratchet grooves 8c are arranged in the first notch 8 b. The electric component comprises a motor 6 arranged on a machine shell 5, wherein an output shaft of the motor 6 extends into the machine shell 5 and is fixedly provided with a second bevel gear 7 meshed with a first bevel gear 8.

The second transmission assembly comprises a sleeve shaft 9, the sleeve shaft 9 is rotatably connected to the outer side of the upper end of the upper rotating shaft 3, the lower end of the sleeve shaft 9 extends into the machine shell 5 and is provided with a rotating block 9a, the lower end of the rotating block 9a is provided with a second rotating groove 9b, a second rotating disc 90 positioned in the second rotating groove 9b is fixedly installed on the upper rotating shaft 3, the outer side of the second rotating disc 90 is provided with a second notch 9c, the inner side wall of the second rotating groove 9b is uniformly provided with a plurality of second ratchet grooves 9d at intervals along the circumferential direction, and a second pawl 91 and a second spring piece 92 used for forcing the second pawl 91 to press towards the second ratchet grooves 9d are arranged in the second notch 9 c.

The handle assembly comprises a handle rod 10 fixedly arranged on the sleeve shaft 9 and a positioning disc 16 fixedly arranged at the upper end of the machine shell 5, wherein a positioning rod 18 is arranged on the handle rod 10, and a return spring 17 used for forcing one end of the positioning rod 18 to be pressed outside the circumference of the positioning disc 16.

The positioning assembly comprises an electromagnet 11 arranged on the outer side of the circumference of the lower protruding block 1b, a lock rod 112 is arranged in the electromagnet 11, one end of the lock rod 112 extends into the lower protruding block 1b, four positioning holes 211 are uniformly arranged at intervals in the circumferential direction of one end of the lower rotating shaft 21 extending into the lower protruding block 1b, and when the lock rod 112 extends into the positioning holes 211, the lower rotating shaft 21 is fixed; the other end of the lock rod 112 is provided with a push rod 111 extending out of the electromagnet 11, the lock rod 112 is driven to leave the positioning hole 211 when the push rod 111 is pulled outwards, and the lock rod 112 is driven to be inserted into the positioning hole 211 when the push rod 111 is pushed inwards.

When the butterfly valve is electrically adjusted to be opened and closed, firstly, an electromagnet 11 is controlled to be electrified, and when the electromagnet 11 is electrified, a lock rod 112 is separated from a positioning hole 211 on a lower rotating shaft 21; secondly, the electric component is controlled to be powered on, the electric component drives the upper rotating shaft 3 to rotate along one direction through the first transmission component, the butterfly plate 2 is driven to open or close the channel when the upper rotating shaft 3 rotates, when the butterfly plate 2 is opened or closed, the electric component and the electromagnet 11 are controlled to be powered off, and the lock rod 112 is inserted into the positioning hole 211 of the lower rotating shaft 21. Specifically, the opening is performed from the closing position shown in fig. 1, the electromagnet 11 is firstly controlled to be powered on, so that the lock rod 112 is separated from the positioning hole 211, then the motor 6 is controlled to rotate from the position shown in fig. 1, the second bevel gear 7 is driven to rotate, and the first bevel gear 8 is further driven to rotate anticlockwise (the position shown in fig. 2), so that the first rotating disc 80 and the upper rotating shaft 3 can be driven to rotate, the butterfly plate 2 is controlled to rotate for 90 degrees to be opened, then the electromagnet 11 is powered off, and the lower rotating shaft 21 is locked at the opening; when the butterfly plate 2 needs to be controlled to be closed, the electromagnet 11 is firstly controlled to be electrified, so that the lock rod 112 is separated from the positioning hole 211, then the motor 6 is controlled to continue rotating, and the first bevel gear 8 rotates anticlockwise to drive the first rotating disc 80 and the upper rotating shaft 3 to rotate 90 degrees to a closed position. When the motor 6 rotates to drive the upper rotating shaft 3 to rotate, the second pawl 91, the second spring piece 92 and the second ratchet groove 9d do not drive the rotating block 9a and the sleeve shaft 9 to rotate, so that the handle assembly is not affected, and the electric assembly and the handle assembly are independent.

When the butterfly valve is manually adjusted to be opened and closed, the push rod 111 is pulled outwards at first to drive the lock rod 112 to leave the positioning hole 211; then, the handle assembly is rotated, the handle assembly drives the upper rotating shaft 3 to rotate along one direction through the second transmission assembly, the butterfly plate 2 is driven to open or close the channel when the upper rotating shaft 3 rotates, and when the butterfly plate 2 is opened or closed, the push rod 111 is pushed inwards to drive the lock rod 112 to be inserted into the positioning hole 211. Specifically, the positioning plate is opened from the closed position shown in fig. 1, the push rod 111 is manually pulled outwards to separate the lock rod 112 from the positioning hole 211, then the positioning rod 18 is pinched to compress the reset spring 17, so that one end of the positioning rod 18 is separated from the outer side of the circumference of the positioning plate 16, the handle is manually rotated to drive the sleeve shaft 9 to drive the rotating block 9a to rotate anticlockwise (the position shown in fig. 3), the second rotating plate 90 is driven to rotate, the upper rotating shaft 3 is driven to rotate, the butterfly plate 2 is rotated by 90 degrees to open the channel, then the push rod 111 is pushed inwards, the lock rod 112 is clamped into the positioning hole 211 to realize position locking, the positioning rod 18 is simultaneously loosened, and one end of the positioning rod. When the butterfly valve is required to be closed, the push rod 111 is pulled outwards, the positioning rod 18 is pinched to compress the return spring 17, one end of the positioning rod 18 is separated from the outer side of the circumference of the positioning disc 16, the handle is rotated manually continuously, the sleeve shaft 9 drives the rotating block 9a to rotate anticlockwise continuously, the second rotating disc 90 is driven to rotate 90 degrees continuously to a closing position, the butterfly plate 2 is closed, the push rod 111 is pushed inwards, the locking rod 112 is clamped into the positioning hole 211 to achieve position locking, the positioning rod 18 is loosened simultaneously, and one end of the positioning rod 18 is pressed on the outer side of the circumference of the positioning disc 16. When the handle assembly drives the upper rotating shaft 3 to rotate, the first pawl 81, the first spring piece 82 and the first ratchet groove 8c do not drive the first bevel gear 8 to rotate, the motor 6 is not affected, and the electric assembly and the handle assembly are independent.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the technical principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims (7)

1. A butterfly valve comprises a valve body, wherein a channel is arranged in the valve body, a lower rotating shaft and an upper rotating shaft which are coaxially arranged are rotatably connected in the valve body, butterfly plates for controlling the opening and closing of the channel are fixedly arranged in the channel on the upper rotating shaft and the lower rotating shaft, an upper protruding block is arranged at the upper end of the valve body on the outer side of the upper rotating shaft, and an upper shaft sleeve sleeved on the upper rotating shaft is arranged at the upper end of the upper protruding block; the upper end of the upper rotating shaft extends out of the shell and is fixedly provided with a handle assembly, and the handle assembly is used for driving the upper rotating shaft to rotate through a second transmission assembly; the lower end of the valve body is provided with a lower convex block on the outer side of the lower rotating shaft, and a positioning assembly for positioning the lower rotating shaft is arranged in the lower convex block.

2. The butterfly valve according to claim 1, wherein the first transmission assembly comprises a first bevel gear rotatably connected to the upper rotating shaft and located in the housing, a first rotating groove is formed at a lower end of the first bevel gear, a first rotating disc located in the first rotating groove is fixedly mounted on the upper rotating shaft, a first notch is formed in an outer side of the first rotating disc, a plurality of first ratchet grooves are uniformly formed in an inner side wall of the first rotating groove at intervals in the circumferential direction, and a first pawl and a first spring plate for forcing the first pawl to press the first ratchet groove are arranged in the first notch.

3. The butterfly valve of claim 2 wherein the electrical assembly comprises a motor mounted to the housing, an output shaft of the motor extending into the housing and fixedly mounted with a second bevel gear in meshing engagement with the first bevel gear.

4. The butterfly valve according to claim 1, wherein the second transmission assembly includes a sleeve rotatably connected to an outer side of an upper end of the upper rotary shaft, a lower end of the sleeve extends into the housing and is provided with a rotary block, a second rotary groove is provided at a lower end of the rotary block, a second rotary disk located in the second rotary groove is fixedly mounted on the upper rotary shaft, a second notch is provided at an outer side of the second rotary disk, a plurality of second ratchet grooves are uniformly provided at circumferential intervals on an inner side wall of the second rotary groove, and a second pawl and a second spring plate for forcing the second pawl to press the second ratchet groove are provided in the second notch.

5. The butterfly valve of claim 4 wherein the handle assembly includes a handle bar fixedly mounted on the sleeve shaft, and a positioning plate fixedly mounted on the upper end of the housing, the handle bar having a positioning rod thereon, and a return spring for urging an end of the positioning rod against a circumferential outer side of the positioning plate.

6. The butterfly valve of claim 1, wherein the positioning assembly comprises an electromagnet disposed outside the circumference of the lower protrusion, a lock rod is disposed in the electromagnet, one end of the lock rod extends into the lower protrusion, four positioning holes are uniformly circumferentially disposed at an end of the lower rotating shaft extending into the lower protrusion, and the lower rotating shaft is fixed when the lock rod extends into the positioning holes; the other end of the lock rod is provided with a push rod extending out of the electromagnet, the lock rod is driven to leave the positioning hole when the push rod is pulled outwards, and the lock rod is driven to be inserted into the positioning hole when the push rod is pushed inwards.

7. The butterfly valve using method according to claim 6, wherein when the butterfly valve is electrically adjusted to be opened and closed, the electromagnet is firstly controlled to be electrified, and when the electromagnet is electrified, the lock rod is separated from the positioning hole on the lower rotating shaft; secondly, controlling an electric component to be electrified, driving an upper rotating shaft to rotate along one direction by the electric component through a first transmission component, driving a butterfly plate to open or close a channel when the upper rotating shaft rotates, controlling the electric component and an electromagnet to be powered off when the butterfly plate is opened or closed, and inserting a lock rod into a positioning hole of a lower rotating shaft;

when the manual adjusting butterfly valve is opened and closed, the push rod is pulled outwards at first to drive the lock rod to leave the positioning hole; and secondly, rotating the handle assembly, driving the upper rotating shaft to rotate along one direction through the second transmission assembly, driving the butterfly plate to open or close the channel when the upper rotating shaft rotates, and driving the locking rod to be inserted into the positioning hole when the push rod is pushed inwards when the butterfly plate is opened or closed.

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