CN215293624U

CN215293624U - Turbine butterfly valve with emergency self-closing function

Info

Publication number: CN215293624U
Application number: CN202120696662.2U
Authority: CN
Inventors: 段方超; 戴均
Original assignee: Tianjin Longrun Kaida Valve Industry Co ltd
Current assignee: Tianjin Longrun Kaida Valve Industry Co ltd
Priority date: 2021-04-06
Filing date: 2021-04-06
Publication date: 2021-12-24
Anticipated expiration: 2031-04-06

Abstract

The utility model relates to the technical field of butterfly valves, in particular to a turbine butterfly valve with an emergency self-closing function, which comprises a shell, wherein the shell is fixedly connected with a sealing shell, an opening and closing unit and a connecting piece, as well as a valve rod arranged in the shell, the valve rod is fixedly connected with a flashboard, a ratchet wheel is arranged in the opening and closing unit, a clamping wheel is arranged in the ratchet wheel, the valve rod is sleeved in the clamping wheel, a first rotating shaft is sleeved in the valve rod, a braking groove is arranged in the clamping wheel, and a braking device is arranged in the braking groove; the clamping wheel is provided with a clamping groove, the valve rod is provided with a closing block, the closing block is clamped in the clamping groove through a stop block made of rubber, and a ratchet consistent with the direction of the ratchet wheel is arranged between the first rotating shaft and the valve rod; the shell fixedly connected with motor, the output and the first pivot fixed connection of motor can drive the card wheel through rotating the handle and rotate inside the ratchet, can take turns to the card through arresting gear and brakies, through closing piece, dog and joint groove, can make the valve rod rotate along with the rotation of card wheel.

Description

Turbine butterfly valve with emergency self-closing function

Technical Field

The utility model relates to a butterfly valve technical field, concretely relates to turbine butterfly valve with emergency self-closing function.

Background

A butterfly valve, also called a flap valve, is a regulating valve with simple structure, can be used for the butterfly valve of the on-off control of low-pressure pipeline medium, the closing member is a disc, rotate around the valve shaft to achieve the valve opened and closed, the valve can be used for controlling the flow of various types of fluids such as air, water, steam, various corrosive media, slurry, oil products, liquid metal, radioactive media and the like, mainly playing the role of cutting off and throttling on the pipeline, the butterfly valve is divided into a double-clip type butterfly valve and a flange type butterfly valve, the butterfly plate of the double-clip type butterfly valve is arranged in the diameter direction of the pipeline, the butterfly valve opening and closing member is a disc-shaped butterfly plate, the disc-shaped butterfly plate rotates around the axis in the cylindrical channel of the butterfly valve body, the rotation angle is between zero degree and ninety degrees, the flow regulation can be played, when the butterfly plate rotates to ninety degrees, the valve reaches the maximum opening degree, thereby achieving the opening and closing or regulating purposes, the wafer butterfly valve has simple structure, small volume and light weight, and the valve has good fluid control characteristic.

Current wafer formula butterfly valve is when the control water, through the rotation of control butterfly plate, makes the lateral wall of butterfly plate closely laminate with the inside wall of valve body, has just so blockked the flow of water, and current butterfly valve, it is great at the water yield, can not promptly close when water pressure is great, can lead to the technology of low reaches to produce certain problem, leads to the disability rate of product to rise.

Disclosure of Invention

The to-be-solved problem of the utility model is to provide a turbine butterfly valve that stability is high, structure workable, low in manufacturing cost, can emergency shutdown, have emergency self-closing function.

In order to solve the technical problem, the utility model discloses a technical scheme is: a turbine butterfly valve with an emergency self-closing function comprises a shell, wherein the shell is fixedly connected with a sealing shell, an opening and closing unit, a connecting piece and a valve rod arranged in the shell, the valve rod is fixedly connected with a flashboard, a ratchet wheel is arranged in the opening and closing unit, a clamping wheel is arranged in the ratchet wheel, a valve rod is sleeved in the clamping wheel, a first rotating shaft is sleeved in the valve rod, a braking groove is arranged in the clamping wheel, and a braking device is arranged in the braking groove;

the clamping wheel is provided with a clamping groove, the valve rod is provided with a closing block, the closing block is clamped in the clamping groove through a stop block made of rubber, and a ratchet in the same direction as the ratchet wheel is arranged between the first rotating shaft and the valve rod;

the shell fixedly connected with motor, the output and the first pivot fixed connection of motor.

Furthermore, the clamping wheel is provided with a third rotating shaft penetrating through the opening and closing unit and fixedly connected with a handle, and the opening and closing unit is provided with an annular through hole matched with the annular through hole.

Further, arresting gear includes the inserted bar, the inserted bar has cup jointed the extension spring, the one end fixed connection of extension spring is in the unit that opens and shuts, the other end and inserted bar joint, the inserted bar has the dead lever through spring hinge hinged joint, the dead lever end is the semi-ring shape.

Further, the inner wall of the shell is provided with a pressure sensor.

Furthermore, scales are arranged outside the opening and closing unit, the handle is marked with a pointer, and the opening and closing state of the valve body can be observed through the scales and the pointer.

Further, the flashboard include with the linkage segment that the valve rod is fixed, be fixed in the reinforced section of linkage segment to and be fixed in the sealed section of reinforced section.

Further, the shell inner wall fixedly connected with first sealed pad, the inboard fixedly connected with second of first sealed pad is sealed fills up, the second sealed pad with flashboard interference fit.

Further, the valve rod is fixedly connected with a second rotating shaft.

Furthermore, a second bearing is arranged in the sealing shell and is sleeved with the second rotating shaft.

Furthermore, a third sealing gasket is arranged at the joint of the second rotating shaft and the valve rod and the joint of the opening and closing unit and the shell.

Compared with the prior art, the utility model has the advantages and positive effect be:

the utility model provides a turbine butterfly valve with emergency self-closing function, can drive the card wheel through rotating the handle and rotate in the ratchet, and because the setting of ratchet makes the card wheel can unidirectional rotation, can brake the card wheel through arresting gear, through closing piece, dog and joint groove, can make the valve rod rotate along with the rotation of card wheel, and because be equipped with the ratchet syntropy between first pivot and the valve rod, make valve rod and first pivot can relative rotation, pressure sensor detects water pressure, when water pressure is too big, controlling means makes the motor open, drive first pivot reverse rotation, first pivot and valve rod block thereby drive the valve rod reverse rotation, make closing piece extrusion dog deformation, finally make closing piece break away from the dog, closing piece can rotate in the joint groove, thereby make the valve rod can reverse rotation, closing the gate plate;

the inserted bar can be inserted into the brake groove through the brake device so as to brake, the fixed bar is connected with the inserted bar through the spring hinge, the fixed bar can be tangent to the outer surface of the opening and closing unit by rotating the fixed bar so as to fix the position of the inserted bar, the spring hinge can enable the inserted bar and the fixed bar to keep a relatively stable angle, so that a worker can concentrate on adjusting the flashboard, and the fixed bar can be restored to an initial state coaxial with the inserted bar by stirring the fixed bar, so that the inserted bar can be inserted into the brake groove under the action of the tension spring;

the first sealing gasket and the second sealing gasket are arranged, so that the sealing property between the flashboard and the shell can be improved, the third sealing gasket can play a role in sealing, fluid is prevented from leaking through the sealing shell or the opening and closing unit, and the fourth sealing gasket can extrude the flange of the pipeline, so that the sealing property of the butterfly valve can be improved, and the problem of fluid leakage is prevented;

through the setting of reinforcing section and sealed section, can increase the intensity of flashboard, the life-span of extension flashboard, and sealed section is equipped with the slope and can makes the flashboard change and rotate, convenient to use just uses manpower sparingly.

The utility model has the advantages of simple structure, cost are lower, the structure workable, low in manufacturing cost, simple to operate, and operational environment adaptability is stronger, has saved the manpower and materials of consumption, more adapts to user's needs.

Drawings

FIG. 1 is a block diagram of the present invention;

fig. 2 is a cross-sectional view of the present invention;

FIG. 3 is an enlarged view of the utility model at A;

fig. 4 is a top view of the click wheel of the present invention;

FIG. 5 is a structural view of the braking device of the present invention;

fig. 6 is a structure view of the shutter of the present invention.

In the figure: the sealing device comprises a shell-1, a connecting piece-2, a first sealing gasket-3, a second sealing gasket-4, a ratchet wheel-5, an opening and closing unit-6, a braking groove-7, a valve rod-8, a clamping wheel-9, a clamping groove-10, a closing block-11, a second rotating shaft-12, a handle-13, a first rotating shaft-14, a gate plate-15, a sealing shell-16, a second bearing-17, a connecting section-18, a reinforcing section-19, a sealing section-20, a braking device-21, a stop block-22, a ratchet-23, a motor-24, a third rotating shaft-25, an annular through hole-26, an inserted rod-27, a third sealing gasket-28, a tension spring-29, a fixing rod-30 and a pressure sensor-31.

Detailed Description

For a better understanding of the present invention, the following further description is given in conjunction with the following embodiments and accompanying drawings.

As shown in fig. 1 to 6, a turbine butterfly valve with an emergency self-closing function comprises a housing 1, the housing 1 is fixedly connected with a sealing shell 16, an opening and closing unit 6, a connecting piece 2 and a valve rod 8 arranged in the housing 1, the valve rod 8 is fixedly connected with a gate plate 15, a ratchet wheel 5 is arranged in the opening and closing unit 6, a clamping wheel 9 is arranged in the ratchet wheel 5, the valve rod 8 is sleeved in the clamping wheel 9, a first rotating shaft 14 is sleeved in the valve rod 8, a braking groove 7 is arranged in the clamping wheel 9, and a braking device 21 is arranged in the braking groove 7;

the clamping wheel 9 is provided with a clamping groove 10, the valve rod 8 is provided with a closing block 11, the closing block 11 is clamped in the clamping groove 10 through a stop block 22, the tail end of the closing block 11 is provided with a slope-shaped radian structure with a flat bottom, and a ratchet 23 in the same direction as the ratchet 5 is arranged between the first rotating shaft 14 and the valve rod 8;

shell 1 fixedly connected with motor 24, motor 24's output and first pivot 14 fixed connection, can drive card wheel 9 through rotating handle 13 and rotate inside ratchet 5, and make card wheel 9 can carry out one-way rotation because setting up of ratchet 5, can brake card wheel 9 through arresting gear 21, prevent it and rotate, through closing piece 11, dog 22 and joint groove 10, can make valve rod 8 rotate along with the rotation of card wheel 9, and because be equipped with between first pivot 14 and the valve rod 8 with ratchet 23 of ratchet 5 syntropy, make valve rod 8 and can carry out relative rotation with first pivot 14.

Card wheel 9 is equipped with third pivot 25 and runs through unit 6 and the fixedly connected with handle 13 that opens and shuts, and unit 6 that opens and shuts is equipped with the annular through-hole 26 of looks adaptation, when the butterfly valve is adjusted to needs, through rotating handle 13 to can drive third pivot 25 through handle 13 and rotate, third pivot 25 drives and drives card wheel 9 and rotate 5 insides at the ratchet, thereby drives valve rod 8 and flashboard 15 and rotates, and then adjusts the state of opening and shutting of butterfly valve.

The brake device 21 comprises an insert rod 27, the insert rod 27 is sleeved with a tension spring 29, one end of the tension spring 29 is fixedly connected to the opening and closing unit 6, the other end of the tension spring 29 is clamped with the insert rod 27, the insert rod 27 is connected with a fixed rod 30 through a spring hinge, the tail end of the fixed rod 30 is in a semi-annular shape, the brake device 21 is characterized in that the insert rod 27 can be inserted into the brake groove 7 due to the pretension force of the tension spring 29 so as to perform braking, when a worker pulls the fixed rod 30, the insert rod 27 is gradually separated from the brake groove 7, when the worker completely pulls out the fixed rod 30, the clamping wheel 9 can be rotated, the fixed rod 30 is connected with the insert rod 27 through a spring hinge, the fixed rod 30 can be tangent to the outer surface of the opening and closing unit 6 by rotating the fixed rod 30 so as to fix the position of the insert rod 27, the spring hinge can enable the insert rod 27 and the fixed rod 30 to keep a relatively stable angle, so that the worker can adjust the flashboard 15 with great care, and the fixing rod 30 can be restored to the initial state coaxial with the insertion rod 27 by pulling the fixing rod 30, so that the insertion rod 27 can be inserted into the braking groove 7 under the action of the tension spring 29.

The inner wall of the shell 1 is provided with a pressure sensor 31, the pressure sensor 31 detects water pressure and transmits signals to a control device such as a PLC (programmable logic controller), the control device compares the signals with a water pressure threshold value, when the water pressure is too high, the control device enables the motor 24 to be started to drive the first rotating shaft 14 to rotate reversely, the first rotating shaft 14 is clamped with the valve rod 8 so as to drive the valve rod 8 to rotate reversely, the closing block 11 extrudes the stop block 22 to deform, finally the closing block 11 is separated from the stop block 22, the closing block 11 can rotate in the clamping groove 10, and therefore the valve rod 8 can rotate reversely to close the flashboard 15;

the shutter 15 and the housing 1 are provided with corresponding position sensors, and the opening and closing state of the shutter 15 can be determined through the relative state between the position sensors, so that the rotation direction and the rotation angle of the motor 24 can be determined more stably and rapidly in emergency closing, and the shutter 15 is closed.

Scales are arranged outside the opening and closing unit 6, a pointer is marked on the handle 13, and the opening and closing state of the valve body 15 can be observed through the scales and the pointer.

The flashboard 15 includes the linkage segment 18 fixed with valve rod 8, is fixed in the reinforcement section 19 of linkage segment 18 to and be fixed in the sealed section 20 of reinforcing section 19, through the setting of reinforcing section 19 and sealed section 20, can increase the intensity of flashboard 15, the life-span of extension flashboard 15, and sealed section 20 is equipped with the slope and can makes flashboard 15 change the rotation more.

The first sealed pad 3 of shell 1 inner wall fixedly connected with, the sealed pad 4 of the inboard fixedly connected with second of the first sealed pad 3, the sealed pad 4 of second and flashboard 15 interference fit through setting up the sealed pad 4 of first sealed pad 3 and second to can improve the leakproofness between flashboard 15 and shell 1.

Valve rod 8 fixedly connected with second pivot 12 is provided with second bearing 17 in the sealed shell 16, and second bearing 17 cup joints with second pivot 12, and second pivot 12 and valve rod 8's junction, the unit 6 that opens and shuts and the junction of shell 1 are provided with the third and seal up 28, can play sealed effect through the third sealed pad 28, prevent that fluid from leaking through sealed shell 16 or the unit 6 that opens and shuts.

The working process of the utility model is as follows:

when the butterfly valve needs to be adjusted, the handle 13 is rotated, so that the handle 13 can drive the third rotating shaft 25 to rotate, the third rotating shaft 25 drives the clamping wheel 9 to rotate in the ratchet wheel 5, the valve rod 8 and the flashboard 15 are driven to rotate, the opening and closing state of the butterfly valve is adjusted, the clamping wheel 9 can be driven to rotate in the ratchet wheel 5 by rotating the handle 13, the clamping wheel 9 can rotate in one direction due to the arrangement of the ratchet wheel 5, the clamping wheel 9 can be braked by the braking device 21, the inserted rod 27 can be inserted into the braking groove 7 due to the pretension force of the tension spring 29, so that braking is performed, when a worker pulls the fixing rod 30, the inserted rod 27 is gradually separated from the braking groove 7, when the worker completely pulls out the fixing rod 30, the clamping wheel 9 can be rotated, the fixing rod 30 is connected with the inserted rod 27 through the spring hinge, the fixing rod 30 can be tangent to the outer surface of the opening and closing unit 6 by rotating the fixing rod 30, the position of the inserted link 27 is fixed, the spring hinge can enable the inserted link 27 and the fixed link 30 to keep a relatively stable angle, so that a worker can intensively adjust the gate plate 15, and the fixed link 30 can be restored to an initial state coaxial with the inserted link 27 by shifting the fixed link 30, so that the inserted link 27 can be inserted into the brake groove 7 under the action of the tension spring 29;

the valve rod 8 can rotate along with the rotation of the clamping wheel 9 through the closing block 11, the stop block 22 and the clamping groove 10, the ratchet 23 which is in the same direction with the ratchet wheel 5 is arranged between the first rotating shaft 14 and the valve rod 8, the valve rod 8 and the first rotating shaft 14 can rotate relatively, the pressure sensor 31 detects water pressure and transmits signals to a control device such as a PLC (programmable logic controller), the control device compares the signals with a water pressure threshold value, when the water pressure is too high, the control device enables the motor 24 to be opened to drive the first rotating shaft 14 to rotate reversely, the flashboard 15 and the shell 1 are provided with corresponding position sensors, the opening and closing state of the flashboard 15 can be determined according to the relative state between the position sensors, the rotating direction and the rotating angle of the motor 24 can be determined stably and rapidly during emergency closing, the flashboard 15 is closed, the first rotating shaft 14 is clamped with the valve rod 8 so as to drive the valve rod 8 to rotate reversely, make closing piece 11 extrusion dog 22 deformation, finally make closing piece 11 break away from dog 22, closing piece 11 can be at the rotation of joint inslot 10 to make valve rod 8 can carry out the antiport, closed flashboard 15.

The embodiments of the present invention have been described in detail, but the description is only for the preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made within the scope of the present invention should be covered by the present patent.

Claims

1. The utility model provides a turbine butterfly valve with emergency self-closing function, includes shell (1), shell (1) fixedly connected with seal shell (16), unit (6) and connecting piece (2) open and shut, and locate valve rod (8) in shell (1), valve rod (8) fixedly connected with flashboard (15), its characterized in that: a ratchet wheel (5) is arranged in the opening and closing unit (6), a clamping wheel (9) is arranged in the ratchet wheel (5), a valve rod (8) is sleeved in the clamping wheel (9), a first rotating shaft (14) is sleeved in the valve rod (8), a braking groove (7) is arranged in the clamping wheel (9), and a braking device (21) is arranged in the braking groove (7);

the clamping wheel (9) is provided with a clamping groove (10), the valve rod (8) is provided with a closing block (11), the closing block (11) is clamped in the clamping groove (10) through a stop block (22), and a ratchet (23) in the same direction as the ratchet (5) is arranged between the first rotating shaft (14) and the valve rod (8);

the shell (1) is fixedly connected with a motor (24), and the output end of the motor (24) is fixedly connected with the first rotating shaft (14).

2. The turbine butterfly valve with emergency self-closing function according to claim 1, wherein: the clamping wheel (9) is provided with a third rotating shaft (25) which penetrates through the opening and closing unit (6) and is fixedly connected with a handle (13), and the opening and closing unit (6) is provided with an annular through hole (26) matched with the opening and closing unit.

3. The turbine butterfly valve with emergency self-closing function according to claim 1, wherein: arresting gear (21) is including inserted bar (27), extension spring (29) have been cup jointed in inserted bar (27), the one end fixed connection of extension spring (29) is in unit (6) that opens and shuts, the other end and inserted bar (27) joint, inserted bar (27) have dead lever (30) through spring hinge hinged joint, dead lever (30) end is the semi-ring shape.

4. The turbine butterfly valve with emergency self-closing function according to claim 1, wherein: and a pressure sensor (31) is arranged on the inner wall of the shell (1).

5. The turbine butterfly valve with emergency self-closing function according to claim 2, wherein: scales are arranged outside the opening and closing unit (6), and a pointer is marked on the handle (13).

6. The turbine butterfly valve with emergency self-closing function according to claim 1, wherein: the gate plate (15) comprises a connecting section (18) fixed with the valve rod (8), a reinforcing section (19) fixed on the connecting section (18), and a sealing section (20) fixed on the reinforcing section (19).

7. The turbine butterfly valve with emergency self-closing function according to claim 1, wherein: the utility model discloses a shell (1) inner wall fixedly connected with first sealed pad (3), the sealed pad (4) of the inboard fixedly connected with second of first sealed pad (3), the sealed pad (4) of second with flashboard (15) interference fit.

8. The turbine butterfly valve with emergency self-closing function according to claim 1, wherein: the valve rod (8) is fixedly connected with a second rotating shaft (12).

9. The turbine butterfly valve with emergency self-closing function according to claim 1, wherein: and a second bearing (17) is arranged in the sealing shell (16), and the second bearing (17) is sleeved with the second rotating shaft (12).

10. The turbine butterfly valve with emergency self-closing function according to claim 1, wherein: the second rotating shaft (12) is connected with the valve rod (8), and a third sealing gasket (28) is arranged at the connection position of the opening and closing unit (6) and the shell (1).