CN112943959A

CN112943959A - Flow valve for use in a flow control device

Info

Publication number: CN112943959A
Application number: CN202110146602.8A
Authority: CN
Inventors: 黄佳翔
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-02-02
Filing date: 2021-02-02
Publication date: 2021-06-11

Abstract

The invention discloses a flow valve used on a flow control device, which comprises a valve body, a first outlet and two groups of second outlets, wherein one side of the valve body is provided with an inlet, one side of the valve body, which is close to the inlet, is provided with an air bag in a sliding manner, the middle position in the valve body is provided with a drive plate in a rotating manner, one side of the drive plate, which is close to the inlet, is fixedly connected with an internal thread sleeve, an external thread sleeve is arranged between the air bag and the internal thread sleeve in a screwing manner, a guide rod is connected between the external thread sleeve and the inlet, one side of the drive plate, which is far away from the internal thread sleeve, is fixedly connected with a push rod, a baffle plate is arranged in the valve body in a sliding manner, one end of the push rod, which is far away from the drive plate, is rotatably connected with the baffle plate through a bearing, the safety control of the valve body is ensured, and the problems of instability and easy movement of the valve core are solved.

Description

Flow valve for use in a flow control device

Technical Field

The invention belongs to the field of valves, and particularly relates to a flow valve used on a flow control device.

Background

Flow valves are used to control the speed of actuation of actuators, for example, the extension speed of the piston rod of a cylinder. Specifically, the flow valve is provided with an oil inlet connected with the power element, an oil outlet connected with the actuating element, a valve seat and a valve core; the valve seat is provided with a flow guide hole; the valve core is used for plugging the diversion hole or opening the diversion hole to realize the communication between the oil inlet and the oil outlet. The valve core changes the opening degree of the flow guide hole (also called changing the through-flow section for limiting the flow of the hydraulic oil) through movement, so that the flow of the hydraulic oil passing through the flow guide hole (or the flow of the hydraulic oil entering the cavity of the actuator) is changed, and the action speed of the actuator is changed. In the prior art, the specific structure and position relationship of the valve core and the valve seat are as follows: as shown in fig. 1, the valve seat 300 has an abutting surface, the guide hole 301 penetrates through the abutting surface, the valve element 400 is located above the abutting surface, when the valve element moves downward and abuts against the abutting surface, the guide hole is blocked, when the valve element moves upward and has a certain distance with the abutting surface, the guide hole forms a certain opening, and thus, the distance between the valve element and the abutting surface defines a through-flow section of the hydraulic oil, and the farther the valve element is from the hydraulic oil, the larger the through-flow section is, the closer the valve element is to the hydraulic oil, and the smaller the through-flow section is.

In some cases, it is necessary to operate the actuator at a low operating speed, for example, a cylinder for slowly lifting a heavy object, to extend the piston rod of the cylinder at a low speed, which requires the opening of the pilot hole to be small and constant, or to keep the flow cross section at the pilot hole, which defines the flow rate of the hydraulic oil, small and constant, which requires the valve element to be held at a small and constant distance from the abutment surface.

In the prior art, in order to enable the valve element to have a fast movement response speed or position response speed, the valve element is generally driven by an electromagnetic force to displace the valve element so as to enable the valve element to finally move to a position, however, it is very difficult to maintain a constant distance, especially a small constant distance, between the valve element and an abutting surface by the electromagnetic force because the valve element is actually in a suspended state relative to a valve seat, or the valve element is not subjected to a force which is upward and balanced with the electromagnetic force, the gravity of the valve element, and the like (the balanced state of the valve element is formed by offsetting the electromagnetic force, the spring force, and the gravity of the valve element), the valve element in the state is unstable in practice and is easy to move, and further the flow cross section which limits the flow rate of the hydraulic oil is easy to change, and further the action of an actuator is easy to fluctuate, the stationarity becomes poor. For example, when the pressure of the oil inlet is suddenly increased, the hydraulic oil can immediately impact the valve core, so that the balance state of the valve core is easily broken, and the flow rate of the hydraulic oil cannot be kept at a low and constant amount; for another example, a slight fluctuation in the current supplied to the coil for generating the electromagnetic force causes the balance of the spool to be broken, and thus the flow rate of the hydraulic oil cannot be maintained at a low and constant level.

Therefore, the flow valve on the flow control device is provided for solving the problems in the prior art, a group of air bags communicated with an external air pump are arranged in the valve body, the valve body is opened and closed by the air bags without the action of electromagnetic force, and the air bags can be attached to the inner wall of the valve body after being filled, so that the safety control of the valve body is ensured, and the problems of instability and easy movement of the valve core are solved; the three groups of water outlets are arranged at one end of the valve body, the angles of the two groups of water outlets are adjustable, the valve body is convenient to connect with a flow control device, a rotating drive plate is arranged in the valve body, the position of the air bag can be controlled, the opening and closing of one group of water outlets can be controlled conveniently, the valve body is controlled by a pure mechanical structure, and the operation is stable.

Disclosure of Invention

The invention aims to provide a flow valve used on a flow control device, which aims to solve the problems that the valve core is actually unstable and is easy to move in the prior art, so that the through-flow section for limiting the flow of hydraulic oil is easy to change, the action of an actuating element is fluctuated, and the stability is poor in the prior art; the balance of the spool is broken by a slight fluctuation in the current supplied to the coil for forming the electromagnetic force, and the flow rate of the hydraulic oil cannot be maintained at a low and constant level.

In order to achieve the purpose, the invention adopts the following technical scheme: the flow valve used on the flow control device comprises a valve body, a first outlet and two groups of second outlets, wherein one side of the valve body is provided with an inlet, one side, close to the inlet, of the valve body is provided with an air bag in a sliding manner, a driving plate is rotatably arranged in the middle of the valve body, one side, close to the inlet, of the driving plate is fixedly connected with an internal thread sleeve, an external thread sleeve is arranged between the air bag and the internal thread sleeve in a threaded manner, and a guide rod is connected between the external thread sleeve and the;

a push rod is fixedly connected to one side, away from the internal thread sleeve, of the driving plate, a baffle is installed in the valve body in a sliding mode, one end, away from the driving plate, of the push rod is rotatably connected with the baffle through a bearing, six groups of first through holes are formed in the baffle in an annular equidistant mode, the first outlet is formed in one side, away from the inlet, of the valve body, a gland is rotatably installed outside the first outlet, second through holes are formed in the gland in an annular equidistant array, and the inner diameters of the first through holes and the second through holes are equal;

two sets of the second export symmetry is seted up in the valve body both sides, the valve body bilateral symmetry articulates there is the connecting tube, fixed intercommunication has the hose between connecting tube and the valve body, the connecting tube surface is kept away from valve body one end and is seted up the external screw thread.

Preferably, the inlet end is fixedly connected with a flange, and mounting holes are formed in the flange at equal intervals in an annular manner.

Preferably, the inner wall of the valve body is located on two sides of the driving plate and is fixedly provided with a sealing ring, and the outer ring of the internal thread sleeve is located at the installation position of the sealing ring and is provided with a notch.

Preferably, gasbag fixed mounting is in external screw thread cover inner wall, gasbag one side is fixed to be communicated with and is connected the trachea, it keeps away from gasbag one end and outside air supply equipment fixed intercommunication to connect the trachea.

Preferably, universal ball bearing is installed to the equal annular equidistance in driver plate both sides, the hemisphere type recess has been seted up to the internal annular equidistance of valve, universal ball bearing and hemisphere type recess match the setting.

Preferably, the outer wall of the baffle is symmetrically connected with sliding blocks, the inner wall of the valve body is symmetrically provided with sliding grooves, and the sliding blocks are in clearance fit with the sliding grooves.

Preferably, a groove is formed in the gland, the inner wall of the groove is fixedly installed on the O-shaped sealing ring, the O-shaped sealing ring is in interference fit with the outer wall of the valve body, a convex block is arranged on one side, located on one side, of the O-shaped sealing ring in the groove, the outer wall of the valve body is provided with an annular groove, and the annular groove is in clearance fit with the convex block.

Preferably, connecting tube one end fixed mounting has the shrouding, shrouding surface symmetry is provided with two sets of first otic placodes, valve body outer wall symmetry is provided with the second otic placode, first otic placode and second otic placode pin joint.

Preferably, the valve body includes left valve body and right valve body, the import is seted up in right valve body one end, the driver plate is rotated and is installed between left valve body and right valve body.

Preferably, four groups of blind holes are formed in the outer thread sleeve at equal intervals, one end of the guide rod is fixedly installed on one side of the flange, one end, far away from the flange, of the guide rod is slidably installed in the blind holes, and a limiting plate is arranged at one end, located in the blind holes, of the guide rod.

The invention has the technical effects and advantages that: compared with the prior art, the flow valve used on the flow control device has the following advantages:

1. a group of air bags communicated with an external air pump are arranged in the valve body, the valve body is opened and closed by the air bags without the action of electromagnetic force, and the air bags can be attached to the inner wall of the valve body after being filled, so that the safety control of the valve body is ensured, and the problems of instability and easy movement of the valve core are solved;

2. the three groups of water outlets are arranged at one end of the valve body, the angles of the two groups of water outlets are adjustable, the valve body is convenient to connect with a flow control device, a rotating drive plate is arranged in the valve body, the position of the air bag can be controlled, the opening and closing of one group of water outlets can be controlled conveniently, the valve body is controlled by a pure mechanical structure, and the operation is stable.

Drawings

FIG. 1 is a schematic sectional front view of the present invention;

FIG. 2 is a top view partially in section and in accordance with the present invention;

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

FIG. 4 is a schematic side view of the left valve body of the present invention;

FIG. 5 is an enlarged view of portion A of FIG. 1 according to the present invention;

FIG. 6 is a schematic structural diagram of portion B of FIG. 2 according to the present invention;

fig. 7 is a schematic perspective view of the external thread bushing of the present invention.

In the figure: 1. a valve body; 101. a left valve body; 102. a right valve body; 2. a first outlet; 3. a second outlet; 4. an inlet; 5. an air bag; 6. a dial; 7. an internal thread sleeve; 8. an external thread sleeve; 9. a guide bar; 10. a push rod; 11. a baffle plate; 12. a first via hole; 13. a gland; 14. a second via hole; 15. connecting a pipeline; 16. a hose; 17. a flange; 18. mounting holes; 19. a seal ring; 20. a notch; 21. connecting an air pipe; 22. a universal ball bearing; 23. a hemispherical groove; 24. a slider; 25. a chute; 26. a groove; 27. an O-shaped sealing ring; 28. a bump; 29. an annular groove; 30. closing the plate; 31. a first ear plate; 32. a second ear panel; 33. and (4) blind holes.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

In the description of the present invention, it is to be understood that the terms indicating an orientation or positional relationship are based on the orientation or positional relationship shown in the drawings only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art from the specification.

The invention provides a flow valve used on a flow control device as shown in figures 1-5, which comprises a valve body 1, a first outlet 2 and two groups of second outlets 3, wherein the valve body 1 comprises a left valve body 101 and a right valve body 102, an inlet 4 is arranged at one end of the right valve body 102, a drive plate 6 is rotatably arranged between the left valve body 101 and the right valve body 102, one side of the valve body 1 is provided with the inlet 4, the inlet 4 is fixedly connected with a flange 17, mounting holes 18 are annularly and equidistantly arranged in the flange 17, an air bag 5 is slidably arranged at one side of the valve body 1 close to the inlet 4, the air bag 5 is fixedly arranged on the inner wall of an external thread sleeve 8, one side of the air bag 5 is fixedly communicated with a connecting air pipe 21, and.

A driving plate 6 is rotatably arranged at the middle position in a valve body 1, universal ball bearings 22 are arranged on the two sides of the driving plate 6 at equal annular intervals, hemispherical grooves 23 are formed in the valve body 1 at equal annular intervals, the universal ball bearings 22 and the hemispherical grooves 23 are arranged in a matching manner, an inner thread sleeve 7 is fixedly connected on one side of the driving plate 6 close to an inlet 4, an outer thread sleeve 8 is arranged between an air bag 5 and the inner thread sleeve 7 in a threaded manner, a guide rod 9 is connected between the outer thread sleeve 8 and the inlet 4, four blind holes 33 are formed in the outer thread sleeve 8 at equal annular intervals, one end of the guide rod 9 is fixedly arranged on one side of a flange 17, one end of the guide rod 9 far away from the flange 17 is slidably arranged in the blind hole 33, a limit plate is arranged at one end of the guide rod 9 positioned in the blind hole 33, and a sealing ring 19 is arranged to ensure that the joint of the dial 6 does not overflow.

Catch plate 6 keeps away from 7 one side fixedly connected with catch bar 10 of internal thread cover, slidable mounting has baffle 11 in the valve body 1, catch bar 10 keeps away from 6 one end of catch plate and passes through bearing and baffle 11 and rotate the connection, baffle 11 annular equidistance has seted up the first via hole 12 of six groups, first export 2 is seted up in valve body 1 and is kept away from 4 one side of import, and 2 outer rotations of first export are installed gland 13, annular equidistance array has second via hole 14 in gland 13, first via hole 12 equals with second via hole 14 internal diameter, 11 outer wall symmetric connection of baffle has slider 24, spout 25 has been seted up to 1 inner wall symmetry of valve body,

slider

24 and 25 clearance fit of spout, when first via hole 12 and second via hole 14 want to lead to, utilize 2 water conservancy diversion of first export, baffle 11 can be in left valve body 101 arbitrary position this moment.

Two sets of second export 3 symmetries are seted up in 1 both sides of valve body, 1 bilateral symmetry of valve body articulates there is connecting tube 15, fixed intercommunication has hose 16 between connecting tube 15 and the valve body 1, connecting tube 15 surface is kept away from 1 one end of valve body and is seted up the external screw thread, seted up recess 26 in the gland 13, recess 26 inner wall fixed mounting is in O type sealing washer 27, O

type sealing washer

27 and 1 outer wall interference fit of valve body, it is provided with lug 28 to lie in O type sealing washer 27 one side in the recess 26, ring channel 29 has been seted up to 1 outer wall of valve body, ring channel 29 and lug 28 clearance fit, 15 one end fixed mounting of connecting tube has shrouding 30, shrouding 30 surface symmetry is provided with two sets of first

otic placodes

31, 1 outer wall symmetry of valve body is provided with second otic.

The working principle is as follows: according to the invention, the valve body 1 is opened and closed by the air bag 5 through arranging the air bag 5 communicated with the external air pump in the valve body, the action of electromagnetic force is not needed, the air bag can be attached to the inner wall of the valve body after being filled, the safety control of the valve body is ensured, the problems of instability and easy movement of the valve core are solved, the internal thread sleeve 7 and the external thread sleeve 8 are arranged between the air bag 5 and the inner wall of the valve body 1, the drive plate 6 is rotated to drive the internal thread sleeve 7 to rotate, so that the external thread sleeve 8 is driven to rotate, and the air bag 5 is understood to move to a set position through the external thread;

set up three group's exports in valve body one end, and wherein 3 angularly adjustable in two sets of second exports, be convenient for connect the flow control device, set up rotation driver plate 6 in valve body 1, not only can control the position of gasbag 5, and be convenient for control opening and close of first export 2, pure mechanical type structural control, the operation is stable, rotatory driver plate 6, it drives baffle 11 and removes to drive catch bar 10, when baffle 11 and gland 13 laminating, rotatory gland 13, make first via hole 12 and second via hole 14 stagger completely, guarantee that first export 2 no longer has the flow, but automatic switch-over exports 3 circulations to the second.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. Flow valve used on flow control device, including valve body (1), first export (2) and two sets of second export (3), its characterized in that: an inlet (4) is formed in one side of the valve body (1), an air bag (5) is slidably mounted in one side, close to the inlet (4), of the valve body (1), a driving plate (6) is rotatably mounted in the middle of the valve body (1), an internal thread sleeve (7) is fixedly connected to one side, close to the inlet (4), of the driving plate (6), an external thread sleeve (8) is arranged between the air bag (5) and the internal thread sleeve (7) in a threaded mode, and a guide rod (9) is connected between the external thread sleeve (8) and the inlet (4);

a push rod (10) is fixedly connected to one side, far away from the internal thread sleeve (7), of the drive plate (6), a baffle (11) is installed in the valve body (1) in a sliding mode, one end, far away from the drive plate (6), of the push rod (10) is rotatably connected with the baffle (11) through a bearing, six groups of first through holes (12) are formed in the baffle (11) in an annular and equidistant mode, the first outlet (2) is formed in one side, far away from the inlet (4), of the valve body (1), a gland (13) is rotatably installed outside the first outlet (2), second through holes (14) are formed in the gland (13) in an annular and equidistant mode, and the inner diameters of the first through holes (12) and the inner diameters of the second through;

two sets of second export (3) symmetry is seted up in valve body (1) both sides, valve body (1) bilateral symmetry articulates there is connecting tube (15), fixed intercommunication has hose (16) between connecting tube (15) and valve body (1), connecting tube (15) surface is kept away from valve body (1) one end and is seted up the external screw thread.

2. A flow valve for use on a flow control device as claimed in claim 1, characterised in that: import (4) end fixedly connected with flange (17), mounting hole (18) have been seted up to annular equidistance in flange (17).

3. A flow valve for use on a flow control device as claimed in claim 1, characterised in that: the inner wall of the valve body (1) is located on two sides of the driving plate (6) and is fixedly provided with a sealing ring (19), and the outer ring of the internal thread sleeve (7) is located at the mounting position of the sealing ring (19) and is provided with a notch (20).

4. A flow valve for use on a flow control device as claimed in claim 1, characterised in that: gasbag (5) fixed mounting is in external screw thread cover (8) inner wall, gasbag (5) one side is fixed the intercommunication has connecting trachea (21), connecting trachea (21) are kept away from gasbag (5) one end and are connected with external air supply equipment is fixed.

5. A flow valve for use on a flow control device as claimed in claim 1, characterised in that: universal ball bearing (22) are installed to the equal annular equidistance in driver plate (6) both sides, hemisphere type recess (23) have been seted up to annular equidistance in valve body (1), universal ball bearing (22) and hemisphere type recess (23) match the setting.

6. A flow valve for use on a flow control device as claimed in claim 1, characterised in that: the outer wall of the baffle (11) is symmetrically connected with sliding blocks (24), the inner wall of the valve body (1) is symmetrically provided with sliding grooves (25), and the sliding blocks (24) are in clearance fit with the sliding grooves (25).

7. A flow valve for use on a flow control device as claimed in claim 1, characterised in that: seted up recess (26) in gland (13), recess (26) inner wall fixed mounting is in O type sealing washer (27), O type sealing washer (27) and valve body (1) outer wall interference fit, it is provided with lug (28) to lie in O type sealing washer (27) one side in recess (26), ring channel (29) have been seted up to valve body (1) outer wall, ring channel (29) and lug (28) clearance fit.

8. A flow valve for use on a flow control device as claimed in claim 1, characterised in that: connecting tube (15) one end fixed mounting has shrouding (30), shrouding (30) surface symmetry is provided with two sets of first otic placodes (31), valve body (1) outer wall symmetry is provided with second otic placode (32), first otic placode (31) and second otic placode (32) pin joint.

9. A flow valve for use on a flow control device as claimed in claim 1, characterised in that: the valve body (1) comprises a left valve body (101) and a right valve body (102), the inlet (4) is arranged at one end of the right valve body (102), and the driving plate (6) is rotatably arranged between the left valve body (101) and the right valve body (102).

10. A flow valve for use on a flow control device as claimed in claim 2, characterised in that: four sets of blind holes (33) have been seted up to annular equidistance in external screw thread cover (8), guide bar (9) one end fixed mounting is in flange (17) one side, flange (17) one end slidable mounting is kept away from in blind hole (33) guide bar (9), guide bar (9) are located blind hole (33) one end and are provided with the limiting plate.