CN111911656B - A ball valve and metering device with a driving motor - Google Patents
A ball valve and metering device with a driving motor Download PDFInfo
- Publication number
- CN111911656B CN111911656B CN202010834547.7A CN202010834547A CN111911656B CN 111911656 B CN111911656 B CN 111911656B CN 202010834547 A CN202010834547 A CN 202010834547A CN 111911656 B CN111911656 B CN 111911656B
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- Prior art keywords
- gear
- sector gear
- elastic
- sector
- valve
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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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- 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
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
- F16K31/041—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor for rotating valves
- F16K31/043—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor for rotating valves characterised by mechanical means between the motor and the valve, e.g. lost motion means reducing backlash, clutches, brakes or return means
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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
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
- F16K37/0008—Mechanical means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
- G01F15/005—Valves
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Mechanically-Actuated Valves (AREA)
Abstract
本发明实施例公开一种带有驱动电机的球阀及计量设备，涉及阀门技术领域，为简化确定球体转动到位的结构而发明。所述球阀，包括阀体和电机，电机设于所述阀体外侧；阀体内设有球体，球体与阀杆的第一端相连，阀杆的第二端位于阀体外部，并与扇形齿轮相连，扇形齿轮与驱动齿轮相啮合；在电机和驱动齿轮之间连接有减速机构；在阀体外侧设有扇形齿轮的复位机构；电机转动，通过减速机构带动所述驱动齿轮转动，驱动齿轮带动扇形齿轮转动预定行程后，扇形齿轮上的齿脱离与驱动齿轮上的齿的啮合，复位机构使扇形齿轮复位，扇形齿轮和驱动齿轮之间出现打齿动作。本申请适用于天然气，水等介质的截止与导通的场合。
The embodiment of the present invention discloses a ball valve and metering equipment with a driving motor, which relates to the field of valve technology and is invented to simplify the structure for determining whether the ball is rotated into place. The ball valve includes a valve body and a motor, wherein the motor is arranged outside the valve body; a ball is arranged inside the valve body, the ball is connected to the first end of the valve stem, the second end of the valve stem is located outside the valve body and is connected to a fan gear, and the fan gear is meshed with the driving gear; a speed reduction mechanism is connected between the motor and the driving gear; a reset mechanism of the fan gear is arranged outside the valve body; the motor rotates, and the driving gear is driven to rotate through the speed reduction mechanism, and after the driving gear drives the fan gear to rotate a predetermined stroke, the teeth on the fan gear are disengaged from the meshing with the teeth on the driving gear, and the reset mechanism resets the fan gear, and a tooth-beating action occurs between the fan gear and the driving gear. The present application is suitable for the occasions of cutting off and conducting media such as natural gas and water.
Description
Technical Field
The application relates to the technical field of valves, in particular to a ball valve with a driving motor and metering equipment.
Background
In the gas meter industry, the entry or shutoff of gas is achieved through valves. And the valve is opened or closed by a signal. In the existing ball valve, the ball rotates in place and feeds back an in-place signal through a travel switch or a Hall sensor, so that the installation structure for determining that the ball rotates in place is complex and is unfavorable for installation.
Disclosure of Invention
In view of the above, the embodiment of the application provides a ball valve with a driving motor and a metering device, so that the structure for determining the rotation of a ball body in place is simple.
In a first aspect, an embodiment of the application provides a ball valve with a driving motor, which comprises a valve body and a motor, wherein the motor is arranged on the outer side of the valve body, a ball body is arranged in the valve body, the ball body is connected with a first end of a valve rod, a second end of the valve rod is positioned on the outer side of the valve body and connected with a sector gear, the sector gear is meshed with the driving gear, a speed reducing mechanism is connected between the motor and the driving gear, a reset mechanism of the sector gear is arranged on the outer side of the valve body, the motor rotates, the driving gear is driven to rotate through the speed reducing mechanism, teeth on the sector gear are separated from meshing with teeth on the driving gear after the driving gear drives the sector gear to rotate for a preset stroke, and the reset mechanism resets the sector gear, and tooth beating action occurs between the sector gear and the driving gear.
According to a specific implementation of the embodiment of the application, the reset mechanism comprises an elastic piece which is arranged at a preset position in the rotation range of the sector gear or at least one end of the sector gear, or
The reset mechanism comprises a torsion spring, wherein the torsion spring is arranged between the sector gear and the valve body and sleeved at the second end of the valve rod, one end of the torsion spring is connected with the sector gear, and the other end of the torsion spring is connected with the valve body, or
The reset mechanism comprises a first elastic piece and a second elastic piece, one ends of the first elastic piece and the second elastic piece are respectively connected with the sector gear, the other ends of the first elastic piece and the second elastic piece are respectively connected with the valve body, the first elastic piece and the second elastic piece are symmetrically arranged around the second end of the valve rod, or
The reset mechanism comprises an elastic arm, a first stand column and a second stand column, wherein the first stand column and the second stand column are arranged outside the valve body, a preset distance is reserved between the first stand column and the second stand column, the first end of the elastic arm is fixed on the sector gear or the second end of the valve rod, and the second end of the elastic arm is located between the first stand column and the second stand column.
According to a specific implementation mode of the embodiment of the application, the elastic piece is arranged at a preset position in the rotation range of the sector gear, the elastic piece is a metal elastic piece and comprises a flaky base body part, a first end of the base body part is provided with a first elastic part which is used for elastically abutting against the first end of the sector gear, a second end of the base body part is provided with a second elastic part which is used for elastically abutting against the second end of the sector gear, the outer side of the valve body is connected with a cavity, the sector gear is arranged in the cavity, and the base body part of the elastic piece is clamped at the inner wall of the cavity.
According to a specific implementation manner of the embodiment of the application, the first elastic part comprises a first base body connecting part, a first bending part and a second bending part, the first base body connecting part is connected with the first end of the base body part and extends from the first end of the base body part towards the direction of the sector gear, the first bending part is connected with the first base body connecting part and extends towards the outer side direction of the first base body connecting part, the second bending part is connected with the first bending part and is used for being elastically abutted with the first end of the sector gear, the second elastic part comprises a second base body connecting part, a third bending part and a fourth bending part, the second base body connecting part is connected with the second end of the base body part and extends from the second end of the base body part towards the direction of the sector gear, the third bending part is connected with the second base body connecting part and extends towards the outer side direction of the second base body connecting part, and the fourth bending part is connected with the third bending part and is used for being abutted with the fourth bending part.
According to a specific implementation manner of the embodiment of the present application, the second bending portion and the fourth bending portion have cambered surfaces respectively.
According to a specific implementation manner of the embodiment of the application, a first positioning column and a second positioning column are arranged in parallel in the cavity at a position close to the inner wall of the cavity, and the elastic sheet is clamped between the first positioning column, the second positioning column and the inner wall of the cavity, wherein the first positioning column is clamped at a first end position of the base body part, and the second positioning column is arranged at a second end position of the base body part.
According to a specific implementation mode of the embodiment of the application, the elastic piece is arranged at a preset position in the rotation range of the sector gear, the sector gear comprises a shaft sleeve, a sector disc body connected with the shaft sleeve, the outer edge of the sector disc body is provided with teeth for being meshed with the teeth of the driving wheel, the shaft sleeve is sleeved at the second end of the valve rod, the first end of the sector disc body is provided with a first arm body for being elastically abutted with the elastic piece, and the second end of the sector disc body is provided with a second arm body for being elastically abutted with the elastic piece.
According to a specific implementation manner of the embodiment of the application, the end part of the first arm body is provided with a first lug, and the end part of the second arm body is provided with a second lug.
According to a specific implementation mode of the embodiment of the application, the elastic piece is arranged at two ends of the sector gear, the elastic piece comprises a first elastic piece and a second elastic piece, the sector gear comprises a shaft sleeve, a sector disc body connected with the shaft sleeve, teeth used for being meshed with the teeth of the driving wheel are arranged on the outer edge of the sector disc body, the shaft sleeve is sleeved at the second end of the valve rod, a first arm body is arranged at the first end of the sector disc body, a second arm body is arranged at the second end of the sector disc body, the first elastic piece is arranged at the end part of the first arm body, and the second elastic piece is arranged at the end part of the second arm body.
In a second aspect, an embodiment of the present invention further provides a metering device, where the metering device is provided with the ball valve according to any one of the foregoing implementations.
In the embodiment of the application, the motor rotates, the driving gear is driven to rotate by the speed reducing mechanism, after the driving gear drives the sector gear to rotate for a preset stroke, teeth on the sector gear are separated from meshing with teeth on the driving gear, the resetting mechanism resets the sector gear, and tooth striking action occurs between the sector gear and the driving gear. According to whether tooth beating action occurs, whether the sphere rotates in place can be determined, and the structure is simple.
Drawings
In order to more clearly illustrate the embodiments of the application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a partial structure of a ball valve with a driving motor according to an embodiment of the present application;
FIG. 2 is a schematic diagram of an explosion structure of a ball valve with a driving motor according to an embodiment of the present application;
FIG. 3 is a schematic perspective view of the driving gear shown in FIG. 1 and FIG. 2;
FIG. 4 is a schematic perspective view of the elastic member shown in FIG. 1 and FIG. 2;
fig. 5 is a schematic perspective view of the sector gear in fig. 1 and 2.
Detailed Description
Embodiments of the present application will be described in detail below with reference to the accompanying drawings. It should be understood that the described embodiments are merely some, but not all, embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
The embodiment of the application aims to provide a ball valve with a driving motor, which comprises a valve body and a motor, wherein the motor is arranged on the outer side of the valve body, a ball body is arranged in the valve body, the ball body is connected with a first end of a valve rod, a second end of the valve rod extends out of the valve body and is connected with a sector gear, the sector gear is meshed with the driving gear, a speed reducing mechanism is connected between the motor and the driving gear, a reset mechanism of the sector gear is arranged on the outer side of the valve body, the motor rotates, the driving gear is driven to rotate through the speed reducing mechanism, teeth on the sector gear are separated from meshing with teeth on the driving gear after the driving gear drives the sector gear to rotate for a preset stroke, and the reset mechanism resets the sector gear, so that tooth beating action occurs between the sector gear and the driving gear. According to whether tooth beating action occurs, whether the sphere rotates in place can be determined, and the structure is simple.
Referring to fig. 1 and 2, the ball valve with a driving motor in this embodiment includes a valve body 10 and a motor 12, the motor 12 is disposed outside the valve body 10, a ball (not shown in the drawing) is disposed in the valve body 10, the ball is connected with a first end of a valve rod, a second end 14 of the valve rod is disposed outside the valve body 10 and connected with a sector gear 16, the sector gear 16 is meshed with a driving gear 18, a speed reducing mechanism 20 is connected between the motor 12 and the driving gear 18, an elastic member 22 is disposed at a predetermined position within a rotation range of the sector gear 16 outside the valve body 10, the motor 12 rotates, the driving gear 18 is driven to rotate by the speed reducing mechanism 20, after the driving gear 18 drives the sector gear 16 to rotate for a predetermined stroke, teeth on the sector gear 16 are disengaged from teeth on the driving gear 18, the resetting mechanism resets the sector gear 16, and a tooth beating action occurs between the sector gear 16 and the driving gear 18.
For example, the motor 12 rotates in the forward direction, the reduction mechanism 20 drives the driving gear 18 to rotate, after the driving gear 18 drives the sector gear 16 to rotate in the first direction (e.g. clockwise) by a predetermined stroke (the valve is opened), the teeth 16a on the sector gear 16 are disengaged from the teeth on the driving gear 18, the elastic member 22 resets the sector gear 16, and a tooth striking action occurs between the sector gear 16 and the driving gear 18. When the driving gear drives the sector gear to rotate through the missing teeth on the sector gear, the gear slip occurs, and the tooth is beaten. At this time, the sector gear continuously abuts against the elastic member under rotation of the driving gear.
The motor 12 rotates reversely, the driving gear 18 is driven to rotate by the speed reducing mechanism 20, after the driving gear 18 drives the sector gear 16 to rotate a preset stroke (the valve is closed) along a second direction (such as anticlockwise), the teeth 16b on the sector gear 16 are disengaged from the teeth on the driving gear 18, the elastic piece 22 resets the sector gear 16, and a tooth striking action occurs between the sector gear 16 and the driving gear 18.
In other words, when the motor 12 rotates in the reverse direction, the smooth engagement of the drive gear and the sector gear is achieved by the resilience of the elastic member 22, thereby achieving smooth reverse rotation. The driving gear drives the full teeth on the sector gear to rotate, and when the sector gear is reversed to a certain position (the valve closing position), the same tooth beating occurs.
After the sector gear 16 rotates for a predetermined stroke, the sector gear 16 can elastically abut against the elastic member 22, so that the sector gear 16 receives an elastic restoring force. A tooth-beating action (also referred to as a tooth-beating phenomenon) occurs between the driving gear 18 and the sector gear 16 under the combined action of the driving force of the motor 12 and the elastic restoring force. That is, when the drive gear drives the sector gear to rotate past the missing teeth on the sector gear, gear slippage, i.e., tooth beating, occurs. At this time, the sector gear continuously abuts against the elastic member under rotation of the driving gear. In short, the in-place tooth-beating structure in the embodiment is to cause the gear to rotate and beat teeth in an over-position mode due to the fact that the sector gear lacks teeth. According to whether tooth beating action occurs, whether the sphere rotates in place can be determined, and the structure is simple.
In addition, in the embodiment, after the ball rotates in place, a tooth striking phenomenon can occur between the driving gear and the sector gear, so that the situation that the driving gear and the sector gear are damaged due to overlarge stress can be reduced or prevented.
In the case of a tooth-breaking action, since the load at the output end of the motor 12 changes regularly, the control current for controlling the opening or closing action of the ball valve also changes regularly, in one embodiment, whether the valve is opened or closed can be determined by detecting the change of the control current. In a specific application, the control current can be sampled and detected, and when the control current is detected to change regularly, the sphere can be determined to rotate in place. Accordingly, the control device for controlling the opening or closing of the ball valve may comprise a current sampling circuit for sampling the control current. In one embodiment, the constant regular change of the current can be detected through a program to judge that the valve is in place or the valve is closed.
Wherein the valve body 10 has a fluid inlet and a fluid outlet, and the ball has a fluid passage therein. When the sector gear 16 rotates, the valve rod drives the ball body to rotate, and the opening or closing of the valve is realized through the connection or the disconnection of the fluid channel in the ball body and the fluid inlet and the fluid outlet on the valve body 10.
The reduction mechanism 20 between the motor 12 and the drive gear 18 may be a gear reduction mechanism. Referring to fig. 3, the drive gear 18 may be a double gear in which one gear 180 of the double gear meshes with a gear at the output of the gear reduction mechanism and the other gear 182 meshes with the sector gear 16. The use of a double gear makes it possible to make the positional arrangement between the sector gear 16 and the reduction mechanism 20 more compact.
The elastic member 22 may be a metal elastic sheet to maintain a large and durable elastic force. Referring to fig. 4, in one example, the metal elastic sheet may include a sheet-shaped base portion 220, a first end of the base portion 220 having a first elastic portion 222 for elastically abutting against a first end of the sector gear 16, a second end of the base portion 220 having a second elastic portion 224 for elastically abutting against a second end of the sector gear 16, a cavity 24 may be connected to an outer side of the valve body 10, the sector gear 16 may be disposed in the cavity 24, and the base portion 220 of the elastic sheet may be clamped at an inner wall of the cavity 24. The size of the sector gear 16 can be reduced by elastically abutting the both ends of the sector gear 16 against different elastic portions, respectively, to realize a tooth-striking operation.
Wherein the cavity 24 is used for mounting the sector gear 16 and the reduction mechanism 20, etc. The cavity 24 may have a square cross-sectional shape, the sector gear 16 being mounted in a central location in the cavity 24, and the drive gear 18 engaging the sector gear 16 being located at a corner within the cavity 24. That is, the connection line between the mounting position of the driving gear 18 and the mounting position of the sector gear 16 is located on the diagonal line in the cavity 24, so that the internal space of the cavity 24 can be fully utilized, and the overall size of the cavity 24 can be relatively small.
The cavity 24 and the valve body 10 may be of unitary construction. The cavity 24 has an opening with a flange at the opening through which the motor 12 can be mounted on the cavity 24.
Referring to fig. 4, the first elastic portion 222 may include a first base connection portion A1, a first bent portion A2, and a second bent portion A3. The first base connecting portion A1 is connected to the first end of the base 220 and extends from the first end of the base 220 toward the sector gear 16, the first bending portion A2 is connected to the first base connecting portion A1 and extends toward the outer side of the first base connecting portion A1, the second bending portion A3 is connected to the first bending portion A2, and the second bending portion A3 is adapted to elastically abut against the first end of the sector gear 16.
The first base connecting portion A1 extends from the first end of the base 220 toward the direction of the sector gear 16, so that the first bending portion A2 and the second bending portion A3 have larger moving space, and the elastic restoring force is larger, so that the tooth beating effect is better.
The first bending part A2 between the second bending part A3 and the first base body connecting part A1 has elasticity, so that the first bending part A2 has larger movable space, and the elastic restoring force of the second bending part A3 is enhanced.
Correspondingly, the second elastic portion 224 includes a second base connecting portion B1, a third bending portion B2 and a fourth bending portion B3, the second base connecting portion B1 is connected to the second end of the base portion 220 and extends from the second end of the base portion 220 toward the sector gear 16, the third bending portion B2 is connected to the second base connecting portion B1 and extends toward the outer side of the second base connecting portion B1, the fourth bending portion B3 is connected to the third bending portion B2, and the fourth bending portion B3 is used for elastically abutting against the first end of the sector gear 16.
Similarly, the second base connecting portion B1 extends from the second end of the base portion 220 toward the direction of the sector gear 16, so that the third bending portion B2 and the fourth bending portion B3 have larger moving space, and have larger elastic restoring force and better tooth beating effect.
The third bending part B2 between the fourth bending part B3 and the first base connecting part A1 also has elasticity, so that the fourth bending part B3 has a larger movable space, and the elastic restoring force of the fourth bending part B3 is enhanced.
The second and fourth bent portions A3 and B3 may have arc surfaces, respectively, and a contact area with the end portion of the sector gear 16 may be reduced to increase elastic force applied to the sector gear 16 by the second and fourth bent portions A3 and B3.
A first positioning column 26 and a second positioning column 28 may be disposed in parallel in the cavity 24 at a position close to the inner wall of the cavity 24, and an elastic sheet is clamped between the first positioning column 26, the second positioning column 28 and the inner wall of the cavity 24, where the first positioning column 26 is clamped at a first end position of the base portion 220, and the second positioning column 28 is disposed at a second end position of the base portion 220.
The first positioning column 26 and the second positioning column 28 can limit the elastic piece on one hand, and on the other hand, the second bending part A3 and the fourth bending part B3 can have larger movable space, so that the elastic restoring force of the second bending part A3 and the fourth bending part B3 can be enhanced.
The base portion 220 may rest against the inner wall of the cavity 24. The inner wall of the cavity 24 can provide stable support for the base portion 220, and the elastic restoring force of the second bending portion A3 and the fourth bending portion B3 can be correspondingly enhanced.
Referring to FIG. 5, in one example, the sector gear 16 includes a hub 160, a sector plate 162 coupled to the hub 160, the outer edge of the sector plate 162 having teeth 164 for engaging the teeth of the drive wheel, the hub 160 being received over the second end 14 of the valve stem, the first end of the sector plate 162 having a first arm 166 for resiliently abutting the resilient member 22, and the second end having a second arm 168 for resiliently abutting the resilient member 22.
The two ends of the sector gear 16 are respectively provided with an arm body, and the arm body is elastically abutted with the elastic piece 22, so that the size of the disk body of the sector gear 16 can be effectively reduced, the weight of the sector gear 16 is reduced, and the rotation of the sector gear 16 is more flexible and lighter.
The sector gear 16 may be made of plastic, and the sector gear 16 may be formed by an injection molding process. The sector gear 16 may be made of a metal or an alloy.
The end of the first arm 166 may have a first bump 170, and the end of the second arm 168 may have a second bump 172, and the end of the first arm 166 may be elastically abutted to the elastic member 22 through the second bump 172, so that the force of the sector gear 16 is stable, and the rhythm of the tooth-beating action is stronger.
The present embodiment also provides a ball valve with a drive motor 12, which is constructed substantially the same as the embodiment shown in fig. 1, except that in this embodiment, an elastic member 22 is provided at least one end of the sector gear 16.
In one example, the sector gear 16 includes a sleeve 160, a sector disk 162 coupled to the sleeve 160, the outer edge of the sector disk 162 having teeth for engaging the teeth of the drive wheel, the sleeve 160 being disposed over the second end 14 of the valve stem, the first end of the sector disk 162 having a first arm 166 for resiliently abutting the resilient member, the second end having a second arm 168 for resiliently abutting the resilient member, the first arm 166 having a first resilient member at an end and the second arm 168 having a second resilient member at an end. The first elastic piece and the second elastic piece can be metal elastic pieces or springs and the like.
The motor 12 rotates in the forward direction, the driving gear 18 is driven to rotate by the speed reducing mechanism 20, after the driving gear 18 drives the sector gear 16 to rotate for a predetermined stroke (the valve is opened) along the first direction (such as the valve opening direction), teeth on the sector gear 16 are disengaged from teeth on the driving gear 18, a first elastic piece on a first arm 166 of the sector disc 162 can be abutted against a first stop block arranged outside the valve body 10, the first elastic piece resets the sector gear 16, and a tooth beating action occurs between the sector gear 16 and the driving gear 18.
The motor 12 rotates reversely, the driving gear 18 is driven to rotate by the speed reducing mechanism 20, after the driving gear 18 drives the sector gear 16 to rotate along the second direction (such as the valve closing direction) by a preset stroke (the valve is closed), teeth on the sector gear 16 are disengaged from teeth on the driving gear 18, a second elastic piece on a second arm 168 of the sector disc 162 can be abutted against a second stop block arranged outside the valve body 10, the second elastic piece resets the sector gear 16, and a tooth beating action occurs between the sector gear 16 and the driving gear 18. According to whether tooth beating action occurs, whether the sphere rotates in place can be determined, and the structure is simple.
The embodiment of the present invention also provides a ball valve with a driving motor, the structure of the embodiment is basically the same as that of the embodiment shown in fig. 1, and the difference is that in the embodiment, the reset mechanism includes a torsion spring, the torsion spring is disposed between the sector gear 16 and the valve body 10 and sleeved on the second end 14 of the valve rod, one end of the torsion spring is connected with the sector gear 16, and the other end is connected with the valve body 10.
The motor 12 rotates in the forward direction, the driving gear 18 is driven to rotate by the speed reducing mechanism 20, after the driving gear 18 drives the sector gear 16 to rotate for a predetermined stroke (the valve is opened) along the first direction (such as the valve opening direction), the torsion spring generates compression deformation, teeth on the sector gear 16 are disengaged from teeth on the driving gear 18, the torsion spring resets the sector gear 16, and a tooth beating action occurs between the sector gear 16 and the driving gear 18.
The motor 12 rotates reversely, the driving gear 18 is driven to rotate by the speed reducing mechanism 20, after the driving gear 18 drives the sector gear 16 to rotate for a preset stroke (the valve is closed) along a second direction (such as a valve closing direction), the torsion spring stretches and deforms, teeth on the sector gear 16 are separated from meshing with teeth on the driving gear 18, the torsion spring resets the sector gear 16, and tooth beating action occurs between the sector gear 16 and the driving gear 18. According to whether tooth beating action occurs, whether the sphere rotates in place can be determined, and the structure is simple. In addition, in the present embodiment, the torsion spring is disposed between the sector gear 16 and the valve body 10, i.e. can be hidden under the sector gear 16, and the structure is simpler and more compact.
The embodiment of the present invention also provides a ball valve with a driving motor, which has a structure substantially the same as that of the embodiment shown in fig. 1, except that in this embodiment, the reset mechanism includes a first elastic member and a second elastic member, one ends of the first elastic member and the second elastic member are respectively connected to the sector gear 16, the other ends of the first elastic member and the second elastic member are respectively connected to the valve body 10, and the first elastic member and the second elastic member are symmetrically arranged around the second end 14 of the valve rod, so that two elastic restoring forces in opposite directions can be respectively applied to the sector gear 16.
In one example, the first elastic member and the second elastic member are tension springs, respectively. In another example, the first elastic member and the second elastic member are elastic rubber bands or elastic rubber strips, respectively.
The motor 12 rotates in the forward direction, the driving gear 18 is driven to rotate by the speed reducing mechanism 20, after the driving gear 18 drives the sector gear 16 to rotate for a predetermined stroke (the valve is opened) along a first direction (such as a valve opening direction), the first elastic member stretches and deforms, teeth on the sector gear 16 are disengaged from teeth on the driving gear 18, the first elastic member resets the sector gear 16, and a tooth striking action occurs between the sector gear 16 and the driving gear 18.
The motor 12 rotates reversely, the driving gear 18 is driven to rotate by the speed reducing mechanism 20, after the driving gear 18 drives the sector gear 16 to rotate for a preset stroke (the valve is closed) along a second direction (such as a valve closing direction), the second elastic piece stretches and deforms, teeth on the sector gear 16 are separated from meshing with teeth on the driving gear 18, the second elastic piece resets the sector gear 16, and tooth striking action occurs between the sector gear 16 and the driving gear 18. According to whether tooth beating action occurs, whether the sphere rotates in place can be determined, and the structure is simple.
In addition, in the present embodiment, the first elastic member and the second elastic member may also be disposed between the sector gear 16 and the valve body 10, i.e. hidden under the sector gear 16, so that the structure is simpler and more compact.
The embodiment of the present invention also provides a ball valve with a driving motor, which has a structure substantially the same as that of the embodiment shown in fig. 1, except that in this embodiment, the reset mechanism includes an elastic arm and a first stand and a second stand, the first stand and the second stand are disposed outside the valve body 10 with a predetermined distance therebetween, a first end of the elastic arm is fixed on the sector gear 16 or on the second end 14 of the valve stem, and a second end of the elastic arm is located between the first stand and the second stand. The spring arm may also be referred to as a spring fork. In one example, the resilient arms are steel bars or wires.
The motor 12 rotates in the forward direction, the driving gear 18 is driven to rotate by the speed reducing mechanism 20, after the driving gear 18 drives the sector gear 16 to rotate for a preset stroke (the valve is opened) along a first direction (such as a valve opening direction), the elastic arm is blocked by the first upright post to generate elastic bending deformation, teeth on the sector gear 16 are separated from meshing with teeth on the driving gear 18, the elastic arm resets the sector gear 16, and tooth striking action occurs between the sector gear 16 and the driving gear 18.
The motor 12 rotates reversely, the driving gear 18 is driven to rotate by the speed reducing mechanism 20, after the driving gear 18 drives the sector gear 16 to rotate along the second direction (such as the valve closing direction) by a preset stroke (the valve is closed), the elastic arm is blocked by the second upright post to generate elastic bending deformation, teeth on the sector gear 16 are separated from meshing with teeth on the driving gear 18, the elastic arm resets the sector gear 16, and tooth striking action occurs between the sector gear 16 and the driving gear 18. According to whether tooth beating action occurs, whether the sphere rotates in place can be determined, and the structure is simple.
In this embodiment, the elastic arm, the first upright and the second upright may also be disposed between the sector gear 16 and the valve body 10, i.e. hidden under the sector gear 16, so that the structure is simpler and more compact.
The embodiment of the invention also provides metering equipment, and the ball valve in any of the previous embodiments is arranged on the metering equipment. The advantages are the same as those of the previous embodiments, and are not described in detail herein. Wherein, the metering equipment can be gas meter or water meter and other equipment. In one example, the ball valve may be mounted at a fluid inlet of the metering device.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises an element.
In this specification, each embodiment is described in a related manner, and identical and similar parts of each embodiment are all referred to each other, and each embodiment mainly describes differences from other embodiments.
The present application is not limited to the above embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the technical scope of the present application are intended to be included in the scope of the present application. Therefore, the protection scope of the application is subject to the protection scope of the claims.
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202010834547.7A CN111911656B (en) | 2020-08-18 | 2020-08-18 | A ball valve and metering device with a driving motor |
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| CN202010834547.7A CN111911656B (en) | 2020-08-18 | 2020-08-18 | A ball valve and metering device with a driving motor |
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| CN111911656A CN111911656A (en) | 2020-11-10 |
| CN111911656B true CN111911656B (en) | 2025-06-24 |
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| CN203585518U (en) * | 2013-10-11 | 2014-05-07 | 阮迪荣 | Transmission mechanism used for mechanical-type timing valve |
| CN103742703B (en) * | 2013-10-11 | 2016-08-17 | 阮迪荣 | A kind of valve switch mechanism for mechanical type timing valve |
| JP7137451B2 (en) * | 2018-12-03 | 2022-09-14 | 日本電産サンキョー株式会社 | valve drive |
| CN210003901U (en) * | 2019-05-17 | 2020-01-31 | 贵州航天智慧农业有限公司 | butterfly valve actuator |
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| TWM273655U (en) * | 2005-01-28 | 2005-08-21 | Johnwell Airconditioning Entpr | Improved structure of the electric control valve |
| CN201802947U (en) * | 2009-12-21 | 2011-04-20 | 阮迪荣 | Gear transmission mechanism applied to electronic control valve and capable of release and reset |
| CN205877247U (en) * | 2016-05-26 | 2017-01-11 | 刘晓琦 | Forced sealing ball valve |
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| CN111911656A (en) | 2020-11-10 |
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