CN112923092A - Ball valve - Google Patents
Ball valve Download PDFInfo
- Publication number
- CN112923092A CN112923092A CN202110183100.2A CN202110183100A CN112923092A CN 112923092 A CN112923092 A CN 112923092A CN 202110183100 A CN202110183100 A CN 202110183100A CN 112923092 A CN112923092 A CN 112923092A
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- China
- Prior art keywords
- valve
- rod
- ball
- locking
- valve rod
- Prior art date
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
- F16K5/0647—Spindles or actuating means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
- B08B9/04—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes
- B08B9/043—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved by externally powered mechanical linkage, e.g. pushed or drawn through the pipes
- B08B9/0436—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved by externally powered mechanical linkage, e.g. pushed or drawn through the pipes provided with mechanical cleaning tools, e.g. scrapers, with or without additional fluid jets
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/08—Guiding yokes for spindles; Means for closing housings; Dust caps, e.g. for tyre valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/53—Mechanical actuating means with toothed gearing
- F16K31/535—Mechanical actuating means with toothed gearing for rotating valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/53—Mechanical actuating means with toothed gearing
- F16K31/54—Mechanical actuating means with toothed gearing with pinion and rack
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K35/00—Means to prevent accidental or unauthorised actuation
- F16K35/02—Means to prevent accidental or unauthorised actuation to be locked or disconnected by means of a pushing or pulling action
- F16K35/022—Means to prevent accidental or unauthorised actuation to be locked or disconnected by means of a pushing or pulling action the locking mechanism being actuated by a separate actuating element
- F16K35/025—Means to prevent accidental or unauthorised actuation to be locked or disconnected by means of a pushing or pulling action the locking mechanism being actuated by a separate actuating element said actuating element being operated manually (e.g. a push-button located in the valve actuator)
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K35/00—Means to prevent accidental or unauthorised actuation
- F16K35/10—Means to prevent accidental or unauthorised actuation with locking caps or locking bars
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Taps Or Cocks (AREA)
- Details Of Valves (AREA)
Abstract
The invention relates to a ball valve, which comprises a valve body, a valve ball, a valve rod, a cleaning mechanism and a locking mechanism, wherein the valve body is provided with a valve ball inlet and a valve outlet; a through pipeline is arranged in the valve body, and a locking groove and a cleaning door plate are arranged on the outer side of the valve body; a first connecting pipe and a second connecting pipe are respectively arranged at two ends of the through pipeline; a valve ball is arranged between the first connecting pipe and the second connecting pipe; a flow passage is arranged in the valve ball; a valve rod is fixedly connected to the upper side of the valve ball, and the valve rod is rotatably connected with the upper part of the valve body; one side of the valve rod is provided with a locking mechanism matched with the locking groove; the valve ball is in sealing fit with the first connecting pipe and the second connecting pipe, and the valve rod can be rotated to control the rotation of the valve ball so as to control the on-off of the ball valve; a cleaning mechanism is arranged in the valve body; the cleaning mechanism is arranged, extends into a flow channel of the valve ball to scrape off the sludge on the inner wall through the rotation of the valve rod, does not need an independent adjusting mechanism, is ingenious in design and does not influence the work of the valve ball; according to the invention, by arranging the locking mechanism, the valve rod is locked when the ball valve is in a communicated state, so that the influence of the cleaning mechanism on the work of the valve ball is prevented, and the work of the ball valve is stable; according to the invention, the cleaning door plate arranged outside the valve body can be opened to clean the cleaning plate when the ball valve is in a disconnected state, so that the sludge is prevented from being solidified on the cleaning plate to influence the cleaning work, and the cleaning is convenient.
Description
Technical Field
The invention belongs to the technical field of pipeline valves, and particularly relates to a ball valve.
Background
The ball valve is mainly used for cutting off, distributing and changing the flow direction of a medium in a pipeline, and can be closed tightly only by rotating 90 degrees and a small rotating moment. The ball valve is most suitable for being used as a switch and a stop valve. The ball valve has the advantages of small fluid resistance, simple structure, tightness, reliability, convenient operation, rapid opening and closing, wide application range and the like, and is widely applied to the fields of petroleum, petrifaction, chemical industry, metallurgy, electric power, water conservancy, water heating, urban construction, fire fighting, machinery, coal, food, ships, power stations, ocean engineering and the like. The opening and closing part of the ball valve is a ball body with a through hole and rotates around an axis vertical to the channel, so that the aim of opening and closing the channel is fulfilled. In actual work, when the medium of the ball valve is high in viscosity and easy to crystallize or coke, the medium is easy to adhere to the surface of the inner runner of the ball body, so that the area of the cross section of the inner runner is reduced, the flow coefficient is reduced, the flow is finally reduced, and the through-flow performance of the ball valve is influenced.
Disclosure of Invention
In order to solve the above problems, the present invention provides a ball valve.
In order to achieve the purpose, the invention provides the following technical scheme that the ball valve comprises a valve body, a valve ball, a valve rod, a cleaning mechanism and a locking mechanism; a through pipeline is arranged in the valve body, and a locking groove and a cleaning door plate are arranged on the outer side of the valve body; a first connecting pipe and a second connecting pipe are respectively arranged at two ends of the through pipeline; a valve ball is arranged between the first connecting pipe and the second connecting pipe; a flow passage is arranged in the valve ball; a valve rod is fixedly connected to the upper side of the valve ball, and the valve rod is rotatably connected with the upper part of the valve body; one side of the valve rod is provided with a locking mechanism matched with the locking groove; the valve ball is in sealing fit with the first connecting pipe and the second connecting pipe, and the valve rod can be rotated to control the rotation of the valve ball so as to control the on-off of the ball valve; a cleaning mechanism is arranged in the valve body.
When the valve rod drives the valve ball to be changed from a connection state to a disconnection state, the cleaning mechanism extends into the flow channel by the rotation of the valve rod, and sediments on the inner wall of the flow channel are scraped.
When the valve rod drives the valve ball to be changed from a disconnected state to a connected state, the cleaning mechanism is withdrawn from the flow channel by the rotation of the valve rod, and the locking mechanism is used for locking the valve rod.
Preferably, the cleaning mechanism includes a rotation unit and a transmission unit; the rotating unit is arranged on the valve rod; and one side of the rotating unit is provided with a transmission unit.
Preferably, the rotating unit comprises two mounting plates, a circular ring, an arc-shaped block, a rotating rod, a tension spring and a rotation stopping rod; two identical mounting plates are arranged on the valve rod; a circular ring which is rotationally connected with the valve rod is arranged between the two mounting plates; an arc-shaped block and a circular bead are fixedly connected between the two mounting plates, and the arc-shaped block is attached to the outer cylindrical surface of the circular ring; a rotating rod is fixedly connected to the circular ring; one end of the tension spring is connected to the arc-shaped block, the other end of the tension spring is connected to the rotary rod, and the tension spring forces the rotary rod to rotate towards the direction close to the shoulder; a rotation stopping rod for stopping the rotation of the rotating rod is arranged in the valve body; in the actual work, rotate because of the ring and connect on the valve rod, and the ring both sides be equipped with valve rod fixed connection's mounting panel, if ring or extension spring damage, pull down the mounting panel and can change easy maintenance.
Preferably, the transmission unit comprises a connecting rod, a fixed block, a sliding block, a cleaning plate, a first gear, a second gear and an arc-shaped rack; one end of the connecting rod is fixedly connected with the rotating rod, and the other end of the connecting rod is fixedly connected with the fixed block; one end of the fixed block is connected with a sliding block in a sliding manner; one end of the sliding block is provided with a cleaning plate which can be tightly attached to the inner wall of the flow channel; one end of the fixed block is rotatably connected with a rotating shaft; a first gear and a second gear are fixedly connected to the rotating shaft; the first gear is meshed with a first rack arranged on one side of the sliding block; an arc-shaped rack with the center of a circle coinciding with the center of a valve ball is arranged in the valve body; the arc-shaped rack is meshed with the second gear; the sliding block is used for driving the cleaning plate to scrape off the sludge on the inner wall of the flow channel; in actual work, after the ball valve is used for a period of time, an operator can open the cleaning door plate on the outer side of the valve body when the ball valve is in a disconnected state, and clean the cleaning plate to prevent sludge from solidifying on the cleaning plate to affect the cleaning effect.
Preferably, the locking mechanism comprises a locking lever and a locking spring: one side of the valve rod is connected with a locking rod in a sliding manner; one end of the locking spring is connected to the valve rod, and the other end of the locking spring is connected to the locking rod; the locking spring forces the locking rod to extend into the locking groove to lock the valve rod; in the actual work, when the ball valve was in the connected state, whether operating personnel should inspect the locking lever and stretched into locking inslot completely, the locking lever makes the valve rod can not rotate by extension spring effort, has ensured ball valve job stabilization.
Preferably, when the ball valve is in a communicating state: the axis of the flow channel is overlapped with the axis of the first connecting pipe, the locking rod extends into the locking groove to lock the valve rod, and the tension spring is stretched to the longest; then pulling the locking rod to make the locking rod compress the locking spring to withdraw from the locking groove, and then rotating the valve rod; the valve rod drives the arc-shaped block to rotate, the valve rod cannot drive the rotary rod to rotate under the action of the tension spring at the beginning, when the valve rod drives the valve ball to rotate to the position where the flow channel and the cleaning plate are coaxial, the rotary rod is contacted with the shoulder, then the rotary rod is driven to rotate by the rotation of the valve rod, so that the fixed block rotates by taking the valve ball as a circle center until the axis of the flow channel is vertical to the axis of the first connecting pipe, and the ball valve is in a disconnected; in the process, the second gear is meshed with the arc-shaped rack and always keeps rotating, so that the rotating shaft drives the first gear to rotate, the first gear drives the sliding block to drive the cleaning plate to enter the flow channel and extend out of the flow channel, and the sediment on the inner wall of the flow channel is scraped.
Preferably, when the ball valve is changed from the off state to the on state: firstly, rotating a valve rod, and driving a rotating rod and a valve ball to rotate simultaneously by the acting force of a tension spring; in the process, the first gear enables the sliding block to drive the cleaning plate to completely withdraw from the flow channel until the sliding block touches the rotation stopping rod, and the sliding block does not rotate any more; the valve rod continues to drive the valve ball to rotate, the tension spring and the valve rod are rotated relatively by the rotating rod until the ball valve is in a communicated state, and the valve rod stops rotating.
Compared with the prior art, the invention has the advantages that:
the cleaning mechanism is arranged, extends into a flow channel of the valve ball through the rotation of the valve rod to scrape off the sludge on the inner wall, does not need an independent adjusting mechanism, is ingenious in design and cannot influence the work of the valve ball;
the locking mechanism is arranged, so that the valve rod is locked when the ball valve is in a communicated state, the influence of the cleaning mechanism on the work of the valve ball is prevented, and the work of the ball valve is stable;
third, through the cleaning door plate arranged outside the valve body, the cleaning door plate can be opened to clean the cleaning plate when the ball valve is in a disconnected state, so that the phenomenon that the cleaning work is influenced by the solidification of the sludge on the cleaning plate is prevented, and the cleaning is convenient.
Drawings
FIG. 1 is a cross-sectional view of the present invention;
FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1 in accordance with the present invention;
FIG. 3 is a schematic view showing the state of the slider in contact with the rotation stop lever according to the present invention;
FIG. 4 is a schematic diagram of the invention in a disconnected state;
FIG. 5 is a cross-sectional view taken along line B-B of FIG. 3 in accordance with the present invention;
FIG. 6 is a cross-sectional view taken along line C-C of FIG. 4 according to the present invention；
FIG. 7 is a cross-sectional view taken along line D-D of FIG. 6 in accordance with the present invention;
FIG. 8 is a schematic view of the tension spring in a connected state according to the present invention;
fig. 9 is a three-dimensional structure diagram of the transmission unit of the present invention.
Detailed Description
The invention is described in further detail below with reference to the accompanying examples.
As shown in fig. 1-9, is a preferred embodiment of the present invention.
The ball valve comprises a valve body 1, a valve ball 2, a valve rod 3, a cleaning mechanism 4 and a locking mechanism 5; a through pipeline 11 is arranged in the valve body 1, and a locking groove 12 and a cleaning door plate 13 are arranged on the outer side of the valve body 1; a first connecting pipe 14 and a second connecting pipe 15 are respectively arranged at two ends of the through pipeline 11; a valve ball 2 is arranged between the first connecting pipe 14 and the second connecting pipe 15; a flow passage 21 is arranged in the valve ball 2; a valve rod 3 is fixedly connected to the upper side of the valve ball 2, and the valve rod 3 is rotatably connected with the upper part of the valve body 1; one side of the valve rod 3 is provided with a locking mechanism 5 matched with the locking groove 12; the valve ball 2 is in sealing fit with the first connecting pipe 14 and the second connecting pipe 15, and the valve rod 3 can be rotated to control the rotation of the valve ball 2 so as to control the on-off of the ball valve; a cleaning mechanism 4 is arranged in the valve body 1.
When the valve rod 3 drives the valve ball 2 to be changed from a connection state to a disconnection state, the cleaning mechanism 4 extends into the flow channel 21 by the rotation of the valve rod 3, and sediments on the inner wall of the flow channel 21 are scraped.
When the valve rod 3 drives the valve ball 2 to change from the disconnection state to the connection state, the cleaning mechanism 4 is withdrawn from the flow passage 21 by the rotation of the valve rod 3, and when the valve ball 2 is in the complete connection state, the locking mechanism 5 is used for locking the valve rod 3.
The cleaning mechanism 4 includes a rotation unit 41 and a transmission unit 42; the rotating unit 41 is arranged on the valve rod 3; the rotating unit 41 is provided with a transmission unit 42 at one side.
The rotating unit 41 comprises two mounting plates 411, a circular ring 412, an arc-shaped block 413, a rotating rod 414, a tension spring 415 and a rotation stopping rod 416; two identical mounting plates 411 are arranged on the valve rod 3; a circular ring 412 which is rotationally connected with the valve rod 3 is arranged between the two mounting plates 411; an arc-shaped block 413 and a shoulder 4111 are fixedly connected between the two mounting plates 411, and the arc-shaped block 413 is attached to the outer cylindrical surface of the ring 412; a rotating rod 414 is fixedly connected to the circular ring 412; one end of the tension spring 415 is connected to the arc-shaped block 413, the other end of the tension spring 415 is connected to the rotating rod 414, and the tension spring 415 forces the rotating rod 414 to rotate towards the direction close to the shoulder; a rotation stopping rod 416 for stopping the rotation of the rotating rod 414 is arranged in the valve body 1; in actual work, because of ring 412 rotates to be connected on valve rod 3, and ring 412 both sides are equipped with the mounting panel 411 with valve rod 3 fixed connection, if ring 412 or extension spring 415 damage, pull down mounting panel 411 and can change easy maintenance.
The transmission unit 42 comprises a connecting rod 421, a fixed block 422, a sliding block 423, a cleaning plate 424, a first gear 425, a second gear 426 and an arc-shaped rack 427; one end of the connecting rod 421 is fixedly connected with the rotating rod 414, and the other end of the connecting rod 421 is fixedly connected with the fixed block 422; one end of the fixed block 422 is slidably connected with a sliding block 423; one end of the sliding block 423 is provided with a cleaning plate 424 which can be tightly attached to the inner wall of the flow channel 21; one end of the fixed block 422 is rotatably connected with a rotating shaft 4221; a first gear 425 and a second gear 426 are fixedly connected to the rotating shaft 4221; the first gear 425 is meshed with a first rack 4231 arranged on one side of the sliding block 423; an arc-shaped rack 427 with the circle center coinciding with the sphere center of the valve ball 2 is arranged in the valve body 1; the arc-shaped rack 427 is meshed with the second gear 426; the sliding block 423 is used for driving the cleaning plate 424 to scrape off the sludge on the inner wall of the flow channel 21; in actual work, after a period of use, an operator can open the cleaning door plate 13 outside the valve body 1 in the ball valve off state to wipe the cleaning plate 424, so that sludge is prevented from being solidified on the cleaning plate 424 to affect the cleaning effect.
The lock mechanism 5 includes a lock lever 51 and a lock spring 52: one side of the valve rod 3 is connected with a locking rod 51 in a sliding way; one end of the locking spring 52 is connected to the valve rod 3, and the other end is connected to the locking rod 51; the locking spring 52 forces the locking rod 51 to extend into the locking groove 12 to lock the valve rod 3; in actual work, when the ball valve is in a communicated state, an operator should check whether the locking rod 51 completely extends into the locking groove 12, and the locking rod 51 enables the valve rod 3 not to rotate due to the acting force of the tension spring 415, so that the stable work of the ball valve is ensured.
When the ball valve is in a communicated state, the axis of the flow passage 21 coincides with the axis of the first connecting pipe 14, the locking rod 51 extends into the locking groove 12 to lock the valve rod 3, the tension spring 415 is stretched to the longest, and the sliding block 423 abuts against the rotation stopping rod (416).
When the ball valve is changed from the connection state to the disconnection state, the locking rod 51 is pulled firstly, so that the locking rod 51 compresses the locking spring 52 to withdraw from the locking groove 12, and then the valve rod 3 is rotated; the valve rod 3 drives the arc-shaped block 413 to rotate, the valve rod 3 cannot drive the rotating rod 414 to rotate under the action of the tension spring 415 at the beginning, when the valve rod 3 drives the valve ball 2 to rotate to the position where the flow channel 21 and the cleaning plate 424 are coaxial, the rotating rod 414 is contacted with the shoulder 4111, then the valve rod 3 rotates to drive the rotating rod 414 to rotate, so that the fixed block 422 rotates by taking the valve ball 2 as a circle center until the axis of the flow channel 21 is vertical to the axis of the first connecting pipe 14, and the ball valve is in a disconnected state; in this process, since the second gear 426 is engaged with the arc-shaped rack 427, the second gear 426 keeps rotating all the time, so the rotating shaft 4221 drives the first gear 425 to rotate, the first gear 425 enables the sliding block 423 to drive the cleaning plate 424 to enter the flow channel 21 and extend out of the flow channel 21, so as to scrape off the sludge on the inner wall of the flow channel 21.
When the ball valve is changed from a disconnected state to a connected state: firstly, the valve rod 3 is rotated, and the rotating rod 414 and the valve ball 2 are driven to rotate simultaneously by the force of the tension spring 415; in the process, the first gear 425 enables the sliding block 423 to drive the cleaning plate 424 to be completely withdrawn from the flow passage 21 until the sliding block 423 touches the rotation stop rod 416, and the sliding block 423 does not rotate any more; the valve rod 3 continues to drive the valve ball 2 to rotate, the rotating rod 414 rotates the tension spring 415 and the valve rod 3 relatively until the ball valve becomes a communication state, and the valve rod 3 stops rotating.
The working process of the ball valve is as follows:
when the ball valve is in a communication state (see fig. 1 and 2): the operator pulls the locking lever 51 to withdraw the locking lever 51 from the locking groove 12 compressing the locking spring 52, and then rotates the valve stem 3; the valve rod 3 drives the arc-shaped block 413 to rotate, the state of the rotating rod 414 is shown in fig. 8 at the beginning, the valve rod 3 cannot drive the rotating rod 414 to rotate under the action of the tension spring 415, when the valve rod 3 drives the valve ball 2 to rotate to the position where the flow passage 21 and the cleaning plate 424 are coaxial (see fig. 3), the rotating rod 414 is contacted with the shoulder 4111, the state of the rotating rod 414 is shown in fig. 7 at the moment, then the shoulder 4111 drives the rotating rod 414 to rotate when the valve rod 3 rotates, so that the fixed block 422 rotates around the valve ball 2 until the axis of the flow passage 21 is perpendicular to the axis of the first connecting pipe 14, and the; in the process, the second gear 426 is meshed with the arc-shaped rack 427, the second gear 426 drives the rotating shaft 4221 to always rotate, so that the rotating shaft 4221 drives the first gear 425 to rotate, and the first gear 425 is meshed with the first rack 4231 on the sliding block 423, so that the sliding block 423 drives the cleaning plate 424 to enter the flow channel 21 and extend out of the flow channel 21, and sludge on the inner wall of the flow channel 21 is scraped.
When the ball valve is changed from the disconnection state to the connection state: firstly, the valve rod 3 is rotated, and the rotating rod 414 and the valve ball 2 are driven to rotate simultaneously by the force of the tension spring 415; in the process, the first gear 425 enables the sliding block 423 to drive the cleaning plate 424 to be completely withdrawn from the flow passage 21 until the sliding block 423 touches the rotation stop rod 416, and the sliding block 423 does not rotate any more; the valve rod 3 continues to drive the valve ball 2 to rotate, the rotary rod 414 enables the tension spring 415 and the valve rod 3 to rotate relatively until the ball valve becomes a communication state, the valve rod 3 stops rotating, and one cleaning process is finished; after cleaning for many times, an operator opens the cleaning door plate 13 on the outer side of the valve body 1 when the ball valve is in an off state, wipes the cleaning plate 424, and prevents sludge from being solidified on the cleaning plate 424 to influence the cleaning effect; the operator then closes the cleaning door 13.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A ball valve, characterized in that: the ball valve comprises a valve body (1), a valve ball (2), a valve rod (3), a cleaning mechanism (4) and a locking mechanism (5); a through pipeline (11) is arranged in the valve body (1), and a locking groove (12) and a cleaning door plate (13) are arranged on the outer side of the valve body (1); a first connecting pipe (14) and a second connecting pipe (15) are respectively arranged at two ends of the through pipeline (11); a valve ball (2) is arranged between the first connecting pipe (14) and the second connecting pipe (15); a flow passage (21) is arranged in the valve ball (2); a valve rod (3) is fixedly connected to the upper side of the valve ball (2), and the valve rod (3) is rotatably connected with the upper part of the valve body (1); a locking mechanism (5) matched with the locking groove (12) is arranged on one side of the valve rod (3); the valve ball (2) is in sealing fit with the first connecting pipe (14) and the second connecting pipe (15), and the rotation of the valve ball (2) can be controlled by rotating the valve rod (3) so as to control the on-off of the ball valve; a cleaning mechanism (4) is arranged in the valve body (1);
when the valve rod (3) drives the valve ball (2) to be switched from a connection state to a disconnection state, the cleaning mechanism (4) extends into the flow channel (21) by the rotation of the valve rod (3) to scrape off the sludge on the inner wall of the flow channel (21);
when the valve rod (3) drives the valve ball (2) to be changed from a disconnected state to a connected state, the cleaning mechanism (4) is retreated from the flow channel (21) by the rotation of the valve rod (3), and when the valve ball (2) is in a completely connected state, the valve rod (3) is locked by the locking mechanism (5).
2. The ball valve according to claim 1, wherein: the cleaning mechanism (4) comprises a rotating unit (41) and a transmission unit (42); the rotating unit (41) is arranged on the valve rod (3); a transmission unit (42) is arranged on one side of the rotating unit (41);
the rotating unit (41) comprises two mounting plates (411), a circular ring (412), an arc-shaped block (413), a rotating rod (414), a tension spring (415) and a rotation stopping rod (416); two identical mounting plates (411) are arranged on the valve rod (3); a circular ring (412) which is rotationally connected with the valve rod (3) is arranged between the two mounting plates (411); an arc-shaped block (413) and a shoulder (4111) are fixedly connected between the two mounting plates (411), and the arc-shaped block (413) is attached to the outer cylindrical surface of the circular ring (412); a rotating rod (414) is fixedly connected to the circular ring (412); one end of the tension spring (415) is connected to the arc-shaped block (413), the other end of the tension spring is connected to the rotating rod (414), and the tension spring (415) forces the rotating rod (414) to rotate towards the direction close to the shoulder; a rotation stopping rod (416) for stopping the rotation of the rotating rod (414) is arranged in the valve body (1).
3. The ball valve of claim 2, wherein: the transmission unit (42) comprises a connecting rod (421), a fixed block (422), a sliding block (423), a cleaning plate (424), a first gear (425), a second gear (426) and an arc-shaped rack (427); one end of the connecting rod (421) is fixedly connected with the rotating rod (414), and the other end of the connecting rod (421) is fixedly connected with the fixed block (422); one end of the fixed block (422) is connected with a sliding block (423) in a sliding way; one end of the sliding block (423) is provided with a cleaning plate (424) which can be tightly attached to the inner wall of the flow channel (21); one end of the fixed block (422) is rotatably connected with a rotating shaft (4221); a first gear (425) and a second gear (426) are fixedly connected to the rotating shaft (4221); the first gear (425) is meshed with a first rack (4231) arranged on one side of the sliding block (423); an arc-shaped rack (427) with the circle center coinciding with the sphere center of the valve ball (2) is arranged in the valve body (1); the arc-shaped rack (427) is meshed with the second gear (426); the sliding block (423) is used for driving the cleaning plate (424) to scrape off the sludge on the inner wall of the flow channel (21).
4. A ball valve according to claim 3, characterized in that the locking mechanism (5) comprises a locking rod (51) and a locking spring (52): one side of the valve rod (3) is connected with a locking rod (51) in a sliding manner; one end of the locking spring (52) is connected to the valve rod (3), and the other end of the locking spring is connected to the locking rod (51); the locking spring (52) forces the locking rod (51) to extend into the locking groove (12) to lock the valve rod (3).
5. The ball valve according to claim 4, characterized in that when the ball valve is in a communication state, the axis of the flow passage (21) is coincident with the axis of the first connecting pipe (14), the locking rod (51) extends into the locking groove (12) to lock the valve rod (3), the tension spring (415) is stretched to the longest, and the sliding block (423) is abutted to the rotation stopping rod (416);
when the ball valve is changed from a connection state to a disconnection state, firstly, the locking rod (51) is pulled, the locking rod (51) compresses the locking spring (52) to withdraw from the locking groove (12), then the valve rod (3) is rotated, the valve rod (3) drives the arc-shaped block (413) to rotate, the valve rod (3) cannot drive the rotating rod (414) to rotate under the action of the tension spring (415) at the beginning, when the valve rod (3) drives the valve ball (2) to rotate to the coaxial position of the flow channel (21) and the cleaning plate (424), the rotating rod (414) is contacted with the shoulder (4111), and then the valve rod (3) rotates to drive the rotating rod (414) to rotate, so that the fixing block (422) rotates by taking the valve ball (2) as a circle center until the axis of the flow channel (21) is vertical to the axis of the first connecting; when the rotating rod (414) rotates, the second gear (426) is enabled to always rotate through the meshing of the second gear (426) and the arc-shaped rack (427), so that the rotating shaft (4221) drives the first gear (425) to rotate, the first gear (425) enables the sliding block (423) to drive the cleaning plate (424) to enter the flow channel (21) and extend out of the flow channel (21), and sediments on the inner wall of the flow channel (21) are scraped off.
6. The ball valve according to claim 5, wherein when said ball valve changes from a disconnected to a connected state: firstly, a valve rod (3) is rotated, and a rotating rod (414) and a valve ball (2) are driven to rotate simultaneously through a tension spring (415); the first gear (425) enables the sliding block (423) to drive the cleaning plate (424) to be completely withdrawn from the flow channel (21) until the sliding block (423) touches the rotation stopping rod (416), and the sliding block (423) does not rotate any more; the valve rod (3) continues to drive the valve ball (2) to rotate, the rotary rod (414) enables the tension spring (415) and the valve rod (3) to rotate relatively until the ball valve is in a communicated state, and the valve rod (3) stops rotating.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110183100.2A CN112923092B (en) | 2021-02-10 | 2021-02-10 | Ball valve |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110183100.2A CN112923092B (en) | 2021-02-10 | 2021-02-10 | Ball valve |
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| CN112923092A true CN112923092A (en) | 2021-06-08 |
| CN112923092B CN112923092B (en) | 2022-06-03 |
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| CN202110183100.2A Active CN112923092B (en) | 2021-02-10 | 2021-02-10 | Ball valve |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114635994A (en) * | 2022-02-17 | 2022-06-17 | 胡云彪 | Ball valve for gelatinous fluid |
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| US5113895A (en) * | 1988-12-20 | 1992-05-19 | Fmc Corporation | Three way valve and distribution pipe comprising same, both adapted to be cleaned by scraping |
| JP2002168354A (en) * | 2000-11-28 | 2002-06-14 | Teral Kyokuto Inc | Strainer incorporated ball valve with cleaning function |
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|---|---|
| CN112923092B (en) | 2022-06-03 |
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Effective date of registration: 20220512 Address after: 325207 high tech Industrial Park, Nanbin street, Rui'an City, Wenzhou City, Zhejiang Province Applicant after: KAIRUITE VALVE CO.,LTD. Address before: 518001 building 6, baisida garden, Cuizhu street, Luohu District, Shenzhen City, Guangdong Province Applicant before: Yu Weiguang |
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Address after: 325207 high tech Industrial Park, Nanbin street, Rui'an City, Wenzhou City, Zhejiang Province Patentee after: Kairuite Valve Group Co.,Ltd. Address before: 325207 high tech Industrial Park, Nanbin street, Rui'an City, Wenzhou City, Zhejiang Province Patentee before: KAIRUITE VALVE CO.,LTD. |
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