CN117869619B - Ball valve with novel valve rod coupling mechanism - Google Patents

Ball valve with novel valve rod coupling mechanism Download PDF

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Publication number
CN117869619B
CN117869619B CN202410278075.XA CN202410278075A CN117869619B CN 117869619 B CN117869619 B CN 117869619B CN 202410278075 A CN202410278075 A CN 202410278075A CN 117869619 B CN117869619 B CN 117869619B
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China
Prior art keywords
valve
valve rod
retaining plate
matched
clamping piece
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CN202410278075.XA
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Chinese (zh)
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CN117869619A (en
Inventor
慕彦云
张海林
秦甜甜
丁珂
张俊
郑雄
李俊霖
陈晓
李贵洪
田鑫磊
吴虹粮
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CHENGDU CHENGFENG VALVE CO LTD
Chengfeng Flow Tech Group
CHENGDU CHENGGAO VALVE CO LTD
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CHENGDU CHENGFENG VALVE CO LTD
Chengfeng Flow Tech Group
CHENGDU CHENGGAO VALVE CO LTD
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Application filed by CHENGDU CHENGFENG VALVE CO LTD, Chengfeng Flow Tech Group, CHENGDU CHENGGAO VALVE CO LTD filed Critical CHENGDU CHENGFENG VALVE CO LTD
Priority to CN202410278075.XA priority Critical patent/CN117869619B/en
Publication of CN117869619A publication Critical patent/CN117869619A/en
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Abstract

The application relates to the technical field of ball valves, in particular to a ball valve with a novel valve rod connecting mechanism, which comprises a valve seat and a valve rod device, wherein an installation cavity is formed in the valve seat, and a valve core is arranged at the installation cavity; the valve rod device comprises a first valve rod and a driving device; the driving device comprises a limiting component, a force storage component and a release component; the limiting assembly comprises a clamping piece, wherein the clamping piece is used for enabling the first valve rod to be static relative to the valve seat; the force storage assembly is used for providing a rotating force for the rotation of the first valve rod, and the rotating force with the greatest force provided is the first rotating force; when the clamping piece is matched with the first valve rod and the ball valve is in any valve state, the force storage assembly can provide first rotating force, and when the first valve rod is released from being matched with the clamping piece, the first rotating force drives the first valve rod to rotate relative to the valve seat so as to improve the rotating speed of the first valve rod. The ball valve can enable the valve to have a faster opening and closing switching speed, and reduce the risk that the valve core or the valve seat is worn by solid particle media.

Description

Ball valve with novel valve rod coupling mechanism
Technical Field
The invention relates to the technical field of ball valves, in particular to a ball valve with a novel valve rod connecting mechanism.
Background
At present, the ball valve is driven by rotating the valve core through the valve rod, wherein the through hole in the middle of the valve core is aligned with the through hole in the middle of the valve seat, so that the ball valve is in an open state, and the through hole in the middle of the valve core is staggered with the through hole in the middle of the valve seat, so that the ball valve is in a closed state.
Although the existing ball valve has good sealing performance, simple structure and applicability to control of various media and various pressures, in the practical use process, the inventor finds that the existing ball valve has the defects in the use process, in particular:
When the flowing medium in the ball valve contains solid particle medium, the ball valve with good sealing performance is most easily worn at the moment when the valve is just opened, and at the moment, the valve seat and the valve core are the first parts to be separated, and the impact of the solid particle medium on the valve seat and the valve core in the rapid flowing process is larger due to the larger pressure difference, so that the valve seat and the valve core are easily worn;
In the process from closing to opening of the valve to the preset state, the valve state is gradually changed, the valve state is gradually increased from closing to opening and then to opening to reach the preset state, and in the same way, the valve state is gradually changed in the process from opening to closing, the opening and closing speed of the valve also influences the abrasion condition of the valve in the two processes, and when a person with inconvenient hands or slow action controls the opening and closing of the ball valve, the opening and closing speed of the valve is slower, so that the whole opening and closing change process is longer, the time of existence of a small channel is prolonged, and in the time, the speed of medium flowing is relatively large, the duration is longer, and the risk of abrasion of a valve seat and a valve core is further increased.
Therefore, in view of the above-mentioned shortcomings, there is a need to design a ball valve with a novel valve stem connection mechanism to reduce the risk of wear of the valve seat and valve element.
Disclosure of Invention
The invention aims at: aiming at the abrasion risk of the ball valve in the actual use process, the ball valve with the novel valve rod connecting mechanism is provided, so that the abrasion risk of a valve seat and a valve core is reduced.
In order to achieve the above object, the present invention provides the following technical solutions:
The ball valve with the novel valve rod connecting mechanism comprises a valve seat and a valve rod device, wherein an installation cavity is formed in the valve seat, and a valve core is arranged at the installation cavity;
The valve rod device comprises a first valve rod and a driving device, the first valve rod is matched with the valve core, and the first valve rod is used for driving the valve core to rotate relative to the valve seat so as to realize opening and closing of the valve of the ball valve;
the driving device comprises a limiting assembly, a force storage assembly and a release assembly;
the limiting assembly comprises a clamping piece, wherein the clamping piece is used for being matched with the first valve rod, and when the clamping piece is matched with the first valve rod, the clamping piece enables the first valve rod to be static relative to the valve seat;
the force storage assembly is used for providing a rotating force for the rotation of the first valve rod relative to the valve seat, and the rotating force with the largest provided force is a first rotating force;
The release assembly is used for controlling the matching relation between the first valve rod and the clamping piece so as to enable the first valve rod to be matched with the clamping piece or be released from being matched with the clamping piece;
When the clamping piece is matched with the first valve rod and the ball valve is in any valve state, the force storage assembly can provide first rotating force, so that when the first valve rod is released from being matched with the clamping piece, the first rotating force drives the first valve rod to rotate relative to the valve seat, and the rotating speed of the first valve rod is improved.
As a preferred technical scheme of the application, the limiting assembly further comprises a retaining plate, wherein the retaining plate is used for limiting the rotation amplitude of the first valve rod when the first valve rod is driven by the first rotation force to rotate, and the position of the retaining plate is adjustable and is used for adjusting the rotation amplitude.
As a preferred technical scheme of the application, the force storage assembly comprises a second valve rod and a first spring, wherein the first spring has elasticity, the second valve rod is sleeved on the first valve rod, a first supporting block is arranged on the side wall of the first valve rod, and a second supporting block and a third supporting block are arranged on the side wall of the second valve rod;
The number of the first springs is 2, one end of one first spring is propped against one side of the first propping block, and the other end of the first spring is propped against the second propping block;
one end of the other first spring is propped against the other side of the first propping block, and the other end of the other first spring is propped against the third propping block;
The force storage assembly further comprises a control device, wherein the control device is used for controlling the rotation quantity of the second valve rod relative to the valve seat so as to control the deformation quantity of the two first springs and control the magnitude of the rotation force.
As a preferred technical scheme of the application, the control device comprises a worm wheel and a worm which are matched, the worm wheel is arranged on the second valve rod, the worm is rotatably arranged on the valve seat, and the worm wheel is used for driving the second valve rod to rotate relative to the valve seat by controlling the rotation of the worm relative to the valve seat.
As a preferential technical scheme of the application, the worm is connected with a rotating disc, and an operator holds the rotating disc to rotate the rotating disc and then drives the worm to rotate relative to the valve seat.
As a preferred technical scheme of the application, a chute is arranged on the valve seat, the retaining plate is arranged in the chute, and the retaining plate can move along the chute to enable the retaining plate to move around the central axis of the first valve rod;
The retaining plate comprises a retaining plate base and a retaining plate body, the retaining plate base is matched with the sliding groove, the retaining plate base is used for moving along the sliding groove, and the retaining plate body is used for abutting against the first abutting block;
A first elastic piece is connected between the base of the retaining plate and the retaining plate body, the first elastic piece has elasticity, and when the first elastic piece is in an initial state, the retaining plate body can be abutted against the first abutting block;
The deformation of the first elastic piece is increased by pressing the retaining plate body, the retaining plate body moves relative to the retaining plate base, so that the retaining plate body moves in a direction away from the first retaining block, and the retaining plate body and the first retaining block are dislocated in the process of moving the retaining plate body around the central axis of the first valve rod.
As a preferred technical scheme of the application, the valve seat is further provided with a positioning part, the positioning part is in a rack-shaped structure, the retaining plate body is provided with a positioning block, the positioning block is matched with the positioning part, and when the first elastic piece is in an initial state, the positioning block is matched with the positioning part, so that the positioning block is clamped in the rack-shaped structure on the positioning part, and the retaining plate is kept fixed relative to the valve seat;
when the abutting plate body is staggered with the first abutting block, the positioning block is separated from the positioning part.
As a preferred technical scheme of the application, the release assembly comprises a valve cap and a second elastic piece, wherein the second elastic piece has elasticity, the valve cap is rotationally connected with the first valve rod, the rotation axis between the valve cap and the first valve rod is collinear with the central axis of the first valve rod, the second elastic piece is connected with the valve cap and the valve seat, and the valve cap and the first valve rod can move along the central axis direction of the first valve rod relative to the valve seat;
The second elastic piece is in an initial state, and when the second elastic piece is in the initial state, the clamping piece is matched with the first valve rod;
through making the valve cap moves towards the direction of keeping away from the disk seat, the deformation volume of second elastic component increases, first valve rod moves and gradually releases the cooperation with the card holder along self central axis direction.
As a preferred technical scheme of the application, the first valve rod comprises a matching part, the matching part is used for matching with the clamping piece, the clamping piece is of an annular structure, a plurality of tooth grooves are uniformly distributed on the inner wall of the clamping piece along the circumferential direction of the clamping piece, the matching part is of a tooth-shaped structure matched with the tooth grooves, and when the clamping piece is matched with the first valve rod, the tooth-shaped structure on the matching part is clamped in the tooth grooves on the clamping piece;
the two ends of the toothed structure on the matching part are of a closing-in structure.
As a preferred technical scheme of the application, the first supporting block is movably arranged on the first valve rod, a movable groove is arranged on the first valve rod, the first supporting block is clamped in the movable groove, the length direction of the movable groove is in the same direction as the central axis direction of the first valve rod, the first supporting block can move along the length direction of the movable groove, and the moving range of the first supporting block moving relative to the length direction of the movable groove is matched with the moving range of the first valve rod moving relative to the valve seat along the central axis direction of the first valve rod.
Compared with the prior art, the invention has the beneficial effects that:
1. in the scheme of the application, when the valve of the ball valve is controlled to be opened and closed, an operator controls the force storage assembly to provide a first rotating force for rotating the first valve rod relative to the valve seat, and then controls the release assembly to enable the first valve rod and the clamping piece to be converted into a matched release state from a matched state, so that the first rotating force drives the first valve rod to rotate relative to the valve seat and drives the valve core to rotate relative to the valve seat, in the process, the rotating speed of the first valve rod and the valve core relative to the valve seat is increased, the opening and closing speed of the ball valve can be increased, and when the clamping piece is matched with the first valve rod and the ball valve is in any valve state, the force storage assembly can provide the first rotating force, so that the changing speed of the valve state can be optimized when the ball valve is changed from any valve state, the duration of the valve state change is reduced, so that when a person inconvenient to or slow to control the opening and closing of the ball valve can enable the valve core to have a faster rotating speed, the valve core to have a faster opening and closing speed, the time of a small channel can be shortened, and the time of the valve core can be shortened, and the solid particle risk of the valve is reduced;
2. Further, by arranging the retaining plate, the retaining plate can limit the rotation amplitude of the first valve rod when the first valve rod is driven by the first rotation force to rotate, and the position of the retaining plate can be adjusted to adjust the rotation amplitude, so that the rotation amplitude of the first valve rod can be controlled when the first rotation force drives the first valve rod to rotate relative to the valve seat by adjusting the position of the retaining plate, the opening degree of the valve is controlled, the opening speed of the valve is improved, the flexibility of valve adjustment is improved, and when the first valve rod in any valve state is adjusted by any rotation amplitude, the first rotation force can be provided to enable the first valve rod to rotate relative to the valve seat, the rotation speed of the valve core is improved, and the abrasion risk of the valve core or the valve seat is reduced;
3. Further, by arranging the second valve rod and the two first springs, arranging the first abutting blocks on the side wall of the first valve rod, arranging the second abutting blocks and the third abutting blocks on the side wall of the second valve rod, enabling one of the first springs to be matched with the first abutting blocks and the second abutting blocks, and the other first spring to be matched with the first abutting blocks and the third abutting blocks, controlling the rotation amount of the second valve rod relative to the valve seat by controlling the control device, thereby controlling the distance between the first abutting blocks and the second abutting blocks or between the first abutting blocks and controlling the deformation amount of the two first springs, controlling the rotation force, enabling the rotation force to be the first rotation force when the ball valve is in any valve state, enabling the opening degree of the ball valve to be gradually increased or the opening degree of the ball valve to be gradually reduced under the action of the first rotation force, and enabling the valve of the ball valve to be flexibly opened or closed on the basis of improving the speed of the ball valve based on opening and closing speed;
4. Further, by arranging the worm wheel and the worm, wherein the worm wheel is arranged on the second valve rod, the worm is rotatably arranged on the valve seat, and the rotation axis of the worm is collinear with the central axis of the worm by rotating the worm relative to the valve seat, so that the worm rotates to drive the worm wheel to rotate, and then the worm wheel drives the second valve rod to rotate relative to the valve seat, thereby rotating the second valve rod relative to the first valve rod, deforming the first spring and storing elastic potential energy, the arrangement of the worm wheel and the worm enables the rotation between the worm wheel and the worm to be unidirectional transmission, only power can be output from the worm, and when the worm is not driven to rotate, the stability of the elastic potential energy stored by deformation of the first spring can be improved, the provided first rotation power is more stable, and the ball valve is provided with more stable and faster opening and closing valve speed;
The opening and closing adjustment of the valve plays a role in pre-adjustment, the second valve rod rotates relative to the first valve rod by controlling the worm to rotate, kinetic energy is stored for driving the rotation of the first valve rod, after the release assembly is controlled, the first valve rod and the clamping piece are released from being matched, the first valve rod drives the valve core to rotate, and the opening and closing of the valve disclosed by the application is used for controlling the movement of the valve core after sequentially controlling a plurality of parts instead of singly controlling a certain part, so that the risk that the valve of the ball valve is opened or closed by mistake can be reduced; based on the worm wheel and the worm, an operator saves more labor when controlling the opening and closing of the valve of the ball valve;
5. Further, by arranging the valve cap and the second elastic piece, when the second elastic piece is in an initial state, the clamping piece is matched with the first valve rod, when the valve cap is moved in a direction away from the valve seat, the deformation of the second elastic piece is increased, and the first valve rod moves along the central axis direction of the first valve rod and gradually releases the matching with the clamping piece, so that the first valve rod can rotate relative to the valve seat under the action of rotation force; when the external force on the valve cap is released, the second elastic piece gradually returns to the initial state, so that the valve cap moves towards the direction close to the valve seat, and the first valve rod is matched with the clamping piece again, so that the first valve rod is kept fixed relative to the valve seat again;
Meanwhile, the valve cap, the worm and the retaining plate on the ball valve can play a role in multiple insurance, and when one of the valve cap, the worm and the retaining plate is independently controlled, the valve state of the ball valve can be kept unchanged, so that the risk of misregulation is further reduced;
6. Further, the clamping piece is arranged to be of an annular structure, a plurality of tooth grooves are uniformly distributed on the inner wall of the clamping piece along the circumferential direction of the clamping piece, and the matching part is of a tooth-shaped structure matched with the tooth grooves, so that when the clamping piece is matched with the first valve rod, the tooth-shaped structure on the matching part is clamped in the tooth grooves on the clamping piece, the matching stability and convenience of the first valve rod and the clamping part can be improved, and further, the two ends of the tooth-shaped structure on the matching part are arranged to be of a closing-in-shaped structure, so that the tooth-shaped structure on the matching part is conveniently clamped in the tooth grooves on the clamping piece, and the matching stability of the first valve rod and the clamping part is improved;
Meanwhile, under the condition that the valve state of the ball valve is kept unchanged, when the worm is rotated to enable the deformation amount of the first spring to be increased, the force of the first abutting block on the first valve rod against the abutting plate is increased, or the interaction force between the matching part on the first valve rod and the tooth socket piece on the clamping piece is increased, so that the stability of the first valve rod when being fixed can be improved, and the stability of the valve state maintenance of the ball valve is further improved.
Drawings
FIG. 1 is a schematic illustration of one embodiment of a ball valve with a novel valve stem connection mechanism of the present application;
FIG. 2 is a schematic illustration of the structure of one embodiment of a ball valve with a novel valve stem attachment mechanism of the present application at the valve stem assembly;
FIG. 3 is a schematic view of the structure of a ball valve with a novel valve stem connection mechanism at a retaining plate according to one embodiment of the present application;
FIG. 4 is a schematic view of the structure of a ball valve with a novel valve stem connection mechanism according to one embodiment of the present application when the first, second and third abutments are engaged;
FIG. 5 is a schematic view of the positioning block in one embodiment of a ball valve with a novel valve stem attachment mechanism according to the present application;
FIG. 6 is a schematic view of the structure of one embodiment of a ball valve with a novel valve stem attachment mechanism at the rotary disk of the present application;
FIG. 7 is a schematic illustration of the structure of a ball valve with a novel valve stem connection mechanism of one embodiment of the present application at the valve stem assembly and showing no control means;
FIG. 8 is a schematic view of the structure of one embodiment of a ball valve with a novel valve stem connection mechanism at the control device of the present application;
FIG. 9 is a schematic view of the structure of one embodiment of a ball valve with a novel valve stem connection mechanism at a positioning block according to the present application;
The figures indicate: the valve comprises a valve seat, a valve rod device, a 3-mounting cavity, a 4-valve core, a 5-first valve rod, a 6-driving device, a 7-limiting component, an 8-force storage component, a 9-releasing component, a 10-clamping piece, an 11-retaining plate, a 12-second valve rod, a 13-first spring, a 14-first retaining block, a 15-second retaining block, a 16-third retaining block, a 17-control device, a 18-worm wheel, a 19-worm, a 20-rotating disc, a 21-sliding groove, a 22-retaining plate base, a 23-retaining plate body, a 24-first elastic piece, a 25-positioning part, a 26-positioning piece, a 27-valve cap, a 28-second elastic piece, a 29-matching part, a 30-tooth groove and a 31-movable groove.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. It will be apparent that the described embodiments are some, but not all, embodiments of the invention.
Thus, the following detailed description of the embodiments of the invention is not intended to limit the scope of the invention, as claimed, but is merely representative of some embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that, under the condition of no conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the present invention, it should be noted that, the terms "upper", "lower", and the like indicate an azimuth or a positional relationship based on the azimuth or the positional relationship shown in the drawings, or an azimuth or a positional relationship conventionally put in use of the inventive product, or an azimuth or a positional relationship conventionally understood by those skilled in the art, such terms are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or element to be referred must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
Example 1
The ball valve with the novel valve rod connecting mechanism comprises a valve seat 1 and a valve rod device 2, wherein an installation cavity 3 is formed in the valve seat 1, and a valve core 4 is arranged at the installation cavity 3;
The valve rod device 2 comprises a first valve rod 5 and a driving device 6, the first valve rod 5 is matched with the valve core 4, and the first valve rod 5 is used for driving the valve core 4 to rotate relative to the valve seat 1 so as to realize the opening and closing of the valve of the ball valve;
the driving device 6 comprises a limiting assembly 7, a force storage assembly 8 and a release assembly 9;
the limiting assembly 7 comprises a clamping piece 10, wherein the clamping piece 10 is used for being matched with the first valve rod 5, and when the clamping piece 10 is matched with the first valve rod 5, the clamping piece 10 enables the first valve rod 5 to be static relative to the valve seat 1;
The force storage assembly 8 is used for providing a rotating force for the rotation of the first valve rod 5 relative to the valve seat 1, and the rotating force with the largest provided force is a first rotating force;
The release assembly 9 is used for controlling the matching relation between the first valve rod 5 and the clamping piece 10 so as to enable the first valve rod 5 to be matched with the clamping piece 10 or be released from being matched;
When the clamping piece 10 is matched with the first valve rod 5 and the ball valve is in any valve state, the force storage assembly 8 can provide first rotating force, so that when the first valve rod 5 is released from being matched with the clamping piece 10, the first rotating force drives the first valve rod 5 to rotate relative to the valve seat 1, and the rotating speed of the first valve rod 5 is improved.
In the application, when the valve of the ball valve is controlled to be opened and closed, an operator controls the force storage assembly 8 to provide first rotating force for rotating the first valve rod 5 relative to the valve seat 1, and then controls the release assembly 9 to enable the first valve rod 5 and the clamping piece 10 to be converted from a matched state to a matched release state, so that the first rotating force drives the first valve rod 5 to rotate relative to the valve seat 1 and drives the valve core 4 to rotate relative to the valve seat 1, in the process, the rotating speed of the first valve rod 5 and the valve core 4 relative to the valve seat 1 is increased, the opening and closing speed of the ball valve can be increased, and when the clamping piece 10 is matched with the first valve rod 5 and the ball valve is in any valve state, the force storage assembly 8 can provide first rotating force, so that the changing speed of the valve state can be optimized, and the time length of the valve state change can be reduced, and thus, when the hand is inconvenient or the hand is in control, the opening and closing speed of the valve core 4 can be provided with higher rotating speed, the valve core 4 can be provided with higher opening and closing speed of the valve can be switched to have lower solid particles or the risk of the valve seat 1 can be reduced, and the abrasion time of the solid particles can be reduced.
As a preferred embodiment, on the basis of the above manner, the limiting assembly 7 further includes a retaining plate 11, where the retaining plate 11 is used to limit the rotation range of the first valve rod 5 when the first valve rod is driven by the first rotation force to rotate, and the position of the retaining plate 11 is adjustable, so as to adjust the rotation range.
Further, through setting up the butt plate 11 for butt plate 11 can restrict the rotation range when first valve rod 5 is driven by first rotation power and take place to the position of butt plate 11 can be adjusted, with the size of adjusting the rotation range, so, through adjusting the position of butt plate 11, when making first valve rod 5 of first rotation power drive rotate relative disk seat 1 again, can control the rotation range of first valve rod 5, thereby control the degree of opening of valve, when improving the valve speed of opening and shutting, improved the flexibility of valve regulation, can both provide first rotation power in order to make first valve rod 5 rotate relative disk seat 1 when carrying out the regulation of arbitrary rotation range to first valve rod 5 when being in arbitrary valve state, and then improve the rotation speed of case 4, reduce the wearing and tearing risk of case 4 or disk seat 1.
As a preferred embodiment, further, the force storage assembly 8 includes a second valve rod 12 and a first spring 13, the first spring 13 has elasticity, the second valve rod 12 is sleeved on the first valve rod 5, a first abutment block 14 is disposed on a side wall of the first valve rod 5, and a second abutment block 15 and a third abutment block 16 are disposed on a side wall of the second valve rod 12;
the number of the first springs 13 is 2, one end of one first spring 13 abuts against one side of the first abutting block 14, and the other end abuts against the second abutting block 15;
one end of the other first spring 13 abuts against the other side of the first abutting block 14, and the other end abuts against the third abutting block 16;
the force storage assembly 8 further comprises a control device 17, wherein the control device 17 is used for controlling the rotation amount of the second valve rod 12 relative to the valve seat 1 so as to control the deformation amount of the two first springs 13, and thus the magnitude of the rotation force is controlled.
Further, by providing the second valve rod 12 and the two first springs 13, and providing the first abutting block 14 on the side wall of the first valve rod 5, and providing the second abutting block 15 and the third abutting block 16 on the side wall of the second valve rod 12, one of the first springs 13 is matched with the first abutting block 14 and the second abutting block 15, and the other first spring 13 is matched with the first abutting block 14 and the third abutting block 16, the control device 17 is controlled to control the rotation amount of the second valve rod 12 relative to the valve seat 1, thereby controlling the distance between the first abutting block 14 and the second abutting block 15 or between the first abutting block 16, and controlling the deformation amount of the two first springs 13, so as to control the rotation force, so that when the ball valve is in any valve state, the rotation force can be the first rotation force, and the opening degree of the ball valve can be gradually increased or the opening degree of the ball valve can be gradually reduced under the action of the first rotation force, and the valve of the ball valve can be flexibly opened or closed on the basis of increasing the opening and closing speed of the ball valve.
As a preferred embodiment, further, on the basis of the above mode, the control device 17 includes an adapted worm wheel 18 and a worm 19, the worm wheel 18 is disposed on the second valve rod 12, the worm 19 is rotatably disposed on the valve seat 1, and the worm wheel 18 is used to drive the second valve rod 12 to rotate relative to the valve seat 1 by controlling the rotation of the worm 19 relative to the valve seat 1.
Further, by arranging the worm wheel 18 and the worm 19, wherein the worm wheel 18 is arranged on the second valve rod 12, the worm 19 is rotatably arranged on the valve seat 1, the rotation axis of the worm 19 is collinear with the central axis of the worm 19 by rotating the worm 19 relative to the valve seat 1, so that the rotation of the worm 19 drives the worm wheel 18 to rotate, and further the worm wheel 18 drives the second valve rod 12 to rotate relative to the valve seat 1, so that the second valve rod 12 rotates relative to the first valve rod 5, the first spring 13 deforms and stores elastic potential energy, the arrangement of the worm wheel 18 and the worm 19 enables the rotation between the worm wheel 18 and the worm 19 to be in one-way transmission, only power can be output from the worm 19, and when the worm 19 is not driven to rotate, the stability of the second valve rod 12 relative to the valve seat 1 can be improved, so that the stability of the elastic potential energy stored by deformation of the first spring 13 can be improved, the provided first rotation power is more stable, and the valve speed with more stable opening and closing speed is provided for the ball valve;
The opening and closing adjustment of the valve plays a role in pre-adjustment, the second valve rod 12 rotates relative to the first valve rod 5 through controlling the worm 19 to rotate, kinetic energy is stored for driving the rotation of the first valve rod 5, after the release assembly 9 is controlled, the first valve rod 5 and the clamping piece 10 are released from being matched, the first valve rod 5 drives the valve core 4 to rotate, and the opening and closing of the valve disclosed by the application is not a single control part, but a plurality of parts are controlled in sequence to control the movement of the valve core 4, so that the risk that the valve of the ball valve is opened or closed by mistake can be reduced; and based on the worm wheel 18 and the worm 19, an operator saves more labor when controlling the opening and closing of the valve of the ball valve.
In a preferred embodiment, in addition to the above-mentioned mode, a rotating disc 20 is further connected to the worm 19, and the operator holds the rotating disc 20 to rotate and then drives the worm 19 to rotate relative to the valve seat 1.
Further, by providing the rotating disk 20, the convenience of the operator to hold the rotating disk 20 and rotate it is improved, and the convenience of rotating the worm 19 is improved.
Example two
On the basis of the first technical solution of the embodiment, further, referring to fig. 1 to 8, a chute 21 is provided on the valve seat 1, the retaining plate 11 is disposed in the chute 21, and the retaining plate 11 can move along the chute 21, so that the retaining plate 11 moves around the central axis of the first valve rod 5;
The retaining plate 11 comprises a retaining plate base 22 and a retaining plate body 23, the retaining plate base 22 is matched with the sliding groove 21, the retaining plate base 22 is used for moving along the sliding groove 21, and the retaining plate body 23 is used for abutting against the first abutting block 14;
A first elastic piece 24 is connected between the retaining plate base 22 and the retaining plate body 23, the first elastic piece 24 has elasticity, and when the first elastic piece 24 is in an initial state, the retaining plate body 23 can abut against the first abutting block 14;
By pressing the retaining plate body 23, the deformation amount of the first elastic member 24 is increased, and the retaining plate body 23 moves relative to the retaining plate base 22, so that the retaining plate body 23 moves away from the first retaining block 14, and the retaining plate body 23 and the first retaining block 14 are dislocated in the process that the retaining plate body 23 moves around the central axis of the first valve rod 5.
Further, by arranging the retaining plate base 22 and the retaining plate body 23, the retaining plate base 22 can move along the chute 21, the retaining plate body 23 can be abutted against the first abutment 14, meanwhile, the first elastic piece 24 is arranged between the retaining plate base 22 and the retaining plate body 23, the first elastic piece 24 can be deformed by pressing the retaining plate body 23, the retaining plate body 23 can move relative to the retaining plate base 22, the retaining plate body 23 and the first abutment 14 can be dislocated in the process that the retaining plate body 23 moves around the central axis of the first valve rod 5, the retaining plate body 23 can move from one side of the first abutment 14 to the other side of the first abutment 14, so that the retaining plate body 23 is convenient to control to be matched with any side of the first abutment 14, the retaining plate body 23 can be conveniently abutted against the first abutment 14 when the first valve rod 5 is driven to rotate relative to the valve seat 1 by the first rotation force, and the flexibility of adjusting the position of the retaining plate 11 is improved.
As a preferred embodiment, in addition to the above-mentioned manner, the valve seat 1 is further provided with a positioning portion 25, the positioning portion 25 is in a rack-shaped structure, the retaining plate body 23 is provided with a positioning block 26, the positioning block 26 is adapted to the positioning portion 25, and when the first elastic member 24 is in an initial state, the positioning block 26 is matched with the positioning portion 25, so that the positioning block 26 is clamped in the rack-shaped structure on the positioning portion 25, so that the retaining plate 11 is kept fixed relative to the valve seat 1;
When the abutment body 23 is displaced from the first abutment 14, the positioning block 26 is separated from the positioning portion 25.
Further, by providing the positioning portion 25 with a toothed strip structure and providing the positioning block 26 on the retaining plate body 23, when the first elastic member 24 is in the initial state, the positioning block 26 is matched with the positioning portion 25, so that the positioning block 26 is clamped in the toothed strip structure on the positioning portion 25, and the retaining plate 11 is kept fixed relative to the valve seat 1, when the position of the retaining plate 11 is adjusted, the first elastic member 23 is pressed to deform the retaining plate body 23, so that the retaining plate body 23 moves relative to the retaining plate base 22, the positioning block 26 is gradually separated from the positioning portion 25, after the positioning block 26 is separated from the positioning portion 25, the retaining plate 11 in the chute 21 can be moved at will, and by releasing the external force applied to the retaining plate body 23, the first elastic member 24 is restored to deform, so that the positioning block 26 is matched with the positioning portion 25 again, and the retaining plate 11 is kept fixed relative to the valve seat 1, wherein the positioning block 26 can be matched with any position on the positioning portion 25.
Example III
On the basis of the second technical solution of the embodiment, further, referring to fig. 1-9, the release assembly 9 includes a valve cap 27 and a second elastic member 28, the second elastic member 28 has elasticity, the valve cap 27 is rotationally connected with the first valve rod 5, a rotation axis between the valve cap 27 and the first valve rod 5 is collinear with a central axis of the first valve rod 5, the second elastic member 28 connects the valve cap 27 and the valve seat 1, and the valve cap 27 and the first valve rod 5 can move along a central axis direction of the first valve rod 5 relative to the valve seat 1;
The second elastic member 28 has an initial state, and when the second elastic member 28 is in the initial state, the clamping member 10 is matched with the first valve rod 5;
by moving the bonnet 27 away from the valve seat 1, the deformation amount of the second elastic member 28 increases, and the first valve stem 5 moves in the direction of its central axis and gradually releases the engagement with the retainer 10.
Further, by providing the valve cap 27 and the second elastic member 28, when the second elastic member 28 is in the initial state, the retaining member 10 is engaged with the first valve stem 5, and when the valve cap 27 is moved in a direction away from the valve seat 1, the deformation amount of the second elastic member 28 is increased, and the first valve stem 5 is moved in a direction along the central axis thereof and gradually released from engagement with the retaining member 10, so that the first valve stem 5 is rotated relative to the valve seat 1 under the action of a rotational force; when the external force on the valve cap 27 is released, the second elastic member 28 gradually returns to the initial state, so that the valve cap 27 moves towards the direction approaching the valve seat 1, and the first valve rod 5 is matched with the clamping member 10 again, so that the first valve rod 5 is kept fixed relative to the valve seat 1 again;
meanwhile, the valve cap 27, the worm 19 and the retaining plate 11 on the ball valve can play a role of multiple insurance, so that the valve state of the ball valve can be kept unchanged when one of the valve cap 27, the worm 19 and the retaining plate 11 is independently controlled, and the risk of misadjustment is further reduced.
As a preferred embodiment, on the basis of the above manner, the first valve rod 5 further includes a matching portion 29, the matching portion 29 is configured to match with the clamping member 10, the clamping member 10 has a ring structure, the inner wall of the clamping member 10 is uniformly distributed with a plurality of tooth grooves 30 along the circumferential direction thereof, the matching portion 29 has a tooth structure adapted to the tooth grooves 30, and when the clamping member 10 matches with the first valve rod 5, the tooth structure on the matching portion 29 is clamped in the tooth grooves 30 on the clamping member 10;
the two ends of the tooth-shaped structure on the matching part 29 are of a closing-in structure.
Further, the clamping piece 10 is arranged to be of an annular structure, a plurality of tooth grooves 30 are uniformly distributed on the inner wall of the clamping piece 10 along the circumferential direction of the clamping piece, and the matching part 29 is of a tooth-shaped structure matched with the tooth grooves 30, so that when the clamping piece 10 is matched with the first valve rod 5, the tooth-shaped structure on the matching part 29 is clamped in the tooth grooves 30 on the clamping piece 10, the stability and convenience of the matching of the first valve rod 5 and the clamping part can be improved, and further, the two ends of the tooth-shaped structure on the matching part 29 are arranged to be of a closing-in structure, so that the tooth-shaped structure on the matching part 29 is conveniently clamped in the tooth grooves 30 on the clamping piece 10, and the matching stability of the first valve rod 5 and the clamping part is improved;
Meanwhile, under the condition that the valve state of the ball valve is kept unchanged, when the worm 19 is rotated to increase the deformation of the first spring 13, the force of the first abutting block 14 on the first valve rod 5 against the abutting plate 11 is increased, or the interaction force between the matching part 29 on the first valve rod 5 and the tooth groove 30 on the clamping piece 10 is increased, so that the stability of the first valve rod 5 when being fixed can be improved, and the stability of the valve state maintenance of the ball valve can be further improved.
As a preferred embodiment, in the above manner, the first abutment 14 is movably disposed on the first valve rod 5, a movable groove 31 is disposed on the first valve rod 5, the first abutment 14 is clamped in the movable groove 31, a length direction of the movable groove 31 is in the same direction as a central axis direction of the first valve rod 5, the first abutment 14 can move along the length direction of the movable groove 31, and a moving range of the first abutment 14 moving relative to the length direction of the movable groove 31 is adapted to a moving range of the first valve rod 5 moving relative to the valve seat 1 along the central axis direction of the first valve rod 5.
Further, the movable groove 31 is formed in the first valve rod 5, the first abutting block 14 is clamped in the movable groove 31, the first abutting block 14 can move along the length direction of the movable groove 31, and the moving range of the first abutting block 14 moving along the length direction of the movable groove 31 is matched with the moving range of the first valve rod 5 moving along the central axis direction of the first valve rod 5 relative to the valve seat 1, so that the first abutting block 14 can move along the central axis direction of the first valve rod 5 relative to the first valve rod 5 in the process of moving the first valve rod 5 along the central axis direction of the first valve rod 5, and the stability of the first abutting block 14 matched with the first elastic piece 24 can be ensured.
Meanwhile, when the opening degree of the valve is observed, the ball valve can be provided with the mark on the first valve rod 5, and the opening and closing conditions of the valve are known by observing the rotation condition of the first valve rod 5 relative to the valve seat 1.
The above embodiments are only for illustrating the present invention and not for limiting the technical solutions described in the present invention, and although the present invention has been described in detail in the present specification with reference to the above embodiments, the present invention is not limited to the above specific embodiments, and thus any modifications or equivalent substitutions are made to the present invention; all technical solutions and modifications thereof that do not depart from the spirit and scope of the invention are intended to be included in the scope of the appended claims.

Claims (9)

1. Ball valve with novel valve rod coupling mechanism, its characterized in that: the valve comprises a valve seat and a valve rod device, wherein an installation cavity is formed in the valve seat, and a valve core is arranged at the installation cavity;
The valve rod device comprises a first valve rod and a driving device, the first valve rod is matched with the valve core, and the first valve rod is used for driving the valve core to rotate relative to the valve seat so as to realize opening and closing of the valve of the ball valve;
the driving device comprises a limiting assembly, a force storage assembly and a release assembly;
the limiting assembly comprises a clamping piece, wherein the clamping piece is used for being matched with the first valve rod, and when the clamping piece is matched with the first valve rod, the clamping piece enables the first valve rod to be static relative to the valve seat;
the force storage assembly is used for providing a rotating force for the rotation of the first valve rod relative to the valve seat, and the rotating force with the largest provided force is a first rotating force;
The release assembly is used for controlling the matching relation between the first valve rod and the clamping piece so as to enable the first valve rod to be matched with the clamping piece or be released from being matched with the clamping piece;
When the clamping piece is matched with the first valve rod and the ball valve is in any valve state, the force storage assembly can provide first rotating force so as to drive the first valve rod to rotate relative to the valve seat when the clamping piece is released from the first valve rod, and therefore the rotating speed of the first valve rod is improved;
The force storage assembly comprises a second valve rod and a first spring, wherein the first spring is elastic, the second valve rod is sleeved on the first valve rod, a first supporting block is arranged on the side wall of the first valve rod, and a second supporting block and a third supporting block are arranged on the side wall of the second valve rod;
The number of the first springs is 2, one end of one first spring is propped against one side of the first propping block, and the other end of the first spring is propped against the second propping block;
one end of the other first spring is propped against the other side of the first propping block, and the other end of the other first spring is propped against the third propping block;
The force storage assembly further comprises a control device, wherein the control device is used for controlling the rotation quantity of the second valve rod relative to the valve seat so as to control the deformation quantity of the two first springs and control the magnitude of the rotation force.
2. A ball valve having a novel valve stem attachment mechanism as defined in claim 1, wherein: the limiting assembly further comprises a retaining plate, the retaining plate is used for limiting the rotation amplitude of the first valve rod when the first valve rod is driven by first rotation force to rotate, and the position of the retaining plate is adjustable and used for adjusting the rotation amplitude.
3. A ball valve having a novel valve stem attachment mechanism as defined in claim 2, wherein: the control device comprises a worm wheel and a worm which are matched, the worm wheel is arranged on the second valve rod, the worm is rotatably arranged on the valve seat, and the worm wheel is used for driving the second valve rod to rotate relative to the valve seat by controlling the rotation of the worm relative to the valve seat.
4. A ball valve having a novel valve stem attachment mechanism as defined in claim 3, wherein: the worm is connected with a rotating disc, and an operator holds the rotating disc by hand to rotate the rotating disc and then drives the worm to rotate relative to the valve seat.
5. A ball valve having a novel valve stem attachment mechanism as defined in claim 2, wherein: the valve seat is provided with a sliding groove, the retaining plate is arranged in the sliding groove, and the retaining plate can move along the sliding groove to enable the retaining plate to move around the central axis of the first valve rod;
The retaining plate comprises a retaining plate base and a retaining plate body, the retaining plate base is matched with the sliding groove, the retaining plate base is used for moving along the sliding groove, and the retaining plate body is used for abutting against the first abutting block;
A first elastic piece is connected between the base of the retaining plate and the retaining plate body, the first elastic piece has elasticity, and when the first elastic piece is in an initial state, the retaining plate body can be abutted against the first abutting block;
The deformation of the first elastic piece is increased by pressing the retaining plate body, the retaining plate body moves relative to the retaining plate base, so that the retaining plate body moves in a direction away from the first retaining block, and the retaining plate body and the first retaining block are dislocated in the process of moving the retaining plate body around the central axis of the first valve rod.
6. A ball valve having a novel valve stem attachment mechanism as defined in claim 5, wherein: the valve seat is also provided with a positioning part, the positioning part is of a rack-shaped structure, the retaining plate body is provided with a positioning block, the positioning block is matched with the positioning part, and when the first elastic piece is in an initial state, the positioning block is matched with the positioning part, so that the positioning block is clamped in the rack-shaped structure on the positioning part, and the retaining plate is kept fixed relative to the valve seat;
when the abutting plate body is staggered with the first abutting block, the positioning block is separated from the positioning part.
7. A ball valve having a novel valve stem attachment mechanism as defined in claim 6, wherein: the release assembly comprises a valve cap and a second elastic piece, the second elastic piece is elastic, the valve cap is rotationally connected with the first valve rod, a rotation axis between the valve cap and the first valve rod is collinear with the central axis of the first valve rod, the second elastic piece is connected with the valve cap and the valve seat, and the valve cap and the first valve rod can move along the central axis direction of the first valve rod relative to the valve seat;
The second elastic piece is in an initial state, and when the second elastic piece is in the initial state, the clamping piece is matched with the first valve rod;
through making the valve cap moves towards the direction of keeping away from the disk seat, the deformation volume of second elastic component increases, first valve rod moves and gradually releases the cooperation with the card holder along self central axis direction.
8. A ball valve having a novel valve stem attachment mechanism as defined in claim 7, wherein: the first valve rod comprises a matching part, the matching part is used for being matched with the clamping piece, the clamping piece is of an annular structure, a plurality of tooth grooves are uniformly distributed on the inner wall of the clamping piece along the circumferential direction of the clamping piece, the matching part is of a tooth-shaped structure matched with the tooth grooves, and when the clamping piece is matched with the first valve rod, the tooth-shaped structure on the matching part is clamped in the tooth grooves on the clamping piece;
the two ends of the toothed structure on the matching part are of a closing-in structure.
9. A ball valve having a novel valve stem attachment mechanism as defined in claim 8, wherein: the movable valve is characterized in that the first supporting block is movably arranged on the first valve rod, a movable groove is formed in the first valve rod, the first supporting block is clamped in the movable groove, the length direction of the movable groove is in the same direction with the central axis direction of the first valve rod, the first supporting block can move along the length direction of the movable groove, and the movable range of the first supporting block, which is opposite to the length direction of the movable groove, is matched with the movable range of the first valve rod, which is opposite to the valve seat, and which is opposite to the first valve rod, along the central axis direction of the first valve rod.
CN202410278075.XA 2024-03-12 2024-03-12 Ball valve with novel valve rod coupling mechanism Active CN117869619B (en)

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