CN212657282U - Low-torque three-piece ball valve - Google Patents

Abstract

The utility model provides a three formula ball valves of low moment of torsion belongs to ball valve technical field. The locking assembly comprises a mounting assembly, a driving assembly and a locking assembly. Two valve bodies in the installation component are fixedly installed at two ends of the valve seat, and the installation shell is fixed on the valve seat. The driving assembly comprises a motor, a first gear, a second gear, a valve rod and a ball body, the motor is fixedly installed on the installation shell, the first gear is fixedly installed on the motor, the second gear is connected to the first gear in a transmission mode, the second gear is fixedly installed at one end of the valve rod, the valve rod is rotatably connected to the valve seat, the ball body is fixedly installed at one end, far away from the second gear, of the valve rod, and the ball body is arranged in the valve seat. The locking subassembly includes driving piece and locking piece, and driving piece fixed mounting is in the installation shell, and locking piece fixed mounting is in the driving piece, and the locking piece can joint in the second gear. Through the structure, the driving force is saved, the torque force of the valve rod rotation is greatly reduced, the energy consumption is saved, and the use is convenient.

Description

Low-torque three-piece ball valve

Technical Field

The utility model relates to a ball valve technical field particularly, relates to a three formula ball valves of low moment of torsion.

Background

The ball body of the ball valve is driven by the valve rod and rotates around the axis of the ball valve. The hard seal V-shaped ball valve can also be used for regulating and controlling fluid, wherein a V-shaped ball core of the hard seal V-shaped ball valve and a metal valve seat of the build-up welding hard alloy have strong shearing force, and the hard seal V-shaped ball valve is particularly suitable for media containing fibers, tiny solid particles and the like. The multi-way ball valve can flexibly control the confluence, the diversion and the switching of the flow direction of the medium on the pipeline, and can close any channel to connect the other two channels.

The spheroid of ball valve drives rotatoryly through the valve rod, and the rotation of valve rod is driven to present valve rod more than through bar-shaped spanner, but the moment of torsion power that needs when driving the valve rod with the spanner is great, need just enable the valve rod rotation with great strength, uses inconveniently, and working strength is big.

SUMMERY OF THE UTILITY MODEL

In order to compensate above not enough, the utility model provides a three formula ball valves of low moment of torsion aims at improving that current spanner drives valve rod rotation torque power big, uses inconvenient, the big problem of working strength.

The utility model discloses a realize like this: the utility model provides a three formula ball valves of low moment of torsion, including installation component, drive assembly and locking subassembly, wherein, installation component realization device's installation is fixed, and drive assembly realizes the drive to the valve rod, and the locking subassembly realizes the locking to drive assembly and loosens.

The mounting assembly comprises a valve seat, two valve bodies and a mounting shell, the two valve bodies are fixedly mounted at two ends of the valve seat, and the mounting shell is fixedly mounted on the valve seat;

the driving assembly comprises a motor, a first gear, a second gear, a valve rod and a ball body, the motor is fixedly mounted on the mounting shell, the first gear is fixedly mounted on the motor, the second gear is connected to the first gear in a transmission manner, the second gear is fixedly mounted at one end of the valve rod, the valve rod is rotatably connected to the valve seat, the ball body is fixedly mounted at one end, far away from the second gear, of the valve rod, and the ball body is arranged in the valve seat;

the locking subassembly includes driving piece and locking piece, driving piece fixed mounting in the installation shell, locking piece fixed mounting in the driving piece, the locking piece can the joint in the second gear.

In an embodiment of the present invention, the locking block is fixed with a slider, the valve seat has a chute, and the slider can be accommodated in the chute and can slide along the chute.

In an embodiment of the present invention, the locking block is provided with a tooth at one end thereof, and the tooth can be engaged with the second gear.

In an embodiment of the utility model, the spheroid is kept away from one side of valve rod is fixed with the back shaft, the back shaft rotates and is connected with the supporting seat, supporting seat fixed mounting in the disk seat.

The utility model discloses an in one embodiment, the valve rod is kept away from the one end fixing of spheroid has the pointer, the pointer sets up the outside of installation shell, be fixed with the scale mark on the installation shell, the scale mark with the pointer cooperation can indicate spheroidal rotation angle.

The utility model discloses an in the embodiment, the both sides of scale mark all are provided with the signboard, the signboard is used for the sign spheroidal operating condition.

In an embodiment of the present invention, a limit pin is fixed to the second gear, a limit groove is formed in the valve seat, and the limit pin can be accommodated in the limit groove and slide along the limit groove.

The utility model discloses an in one embodiment, the spacer pin is kept away from the one end of spacing groove is fixed with the stopper, the stopper sets up on the second gear.

The utility model discloses an in one embodiment, the sealing washer has been cup jointed on the valve rod, the sealing washer is fixed in on the disk seat.

In an embodiment of the present invention, a transmission ratio of the first gear to the second gear is 1: 4.

The utility model has the advantages that: the utility model discloses a low moment of torsion three-piece ball valve that obtains through above-mentioned design, during the use, it is rotatory to drive first gear through the motor, and then first gear drives the second gear rotation, and then the second gear drives the valve rod rotation, and then the valve rod drives the spheroid and rotates in the disk seat, and then realize spheroidal position transform, realize the intercommunication and the closing of valve, the drive ratio of first gear and second gear is 1:4, and then saved driving force, the rotatory moment of torsion power of valve rod greatly reduced, practice thrift the energy consumption, high durability and convenient use, promote the locking piece through the driving piece, realize the joint and the separation of locking piece and second gear, and then realize the locking and the loosening of second gear, realize the locking and the loosening of whole device, improve the fastness and the stability of device.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic perspective view of an embodiment of the present invention;

fig. 2 is an enlarged view of a portion a of fig. 1 according to the present invention;

fig. 3 is a schematic diagram of an internal structure provided in an embodiment of the present invention;

fig. 4 is a schematic view of an internal structure of an installation shell according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a driving assembly and a locking assembly provided in an embodiment of the present invention;

fig. 6 is a schematic structural view of a locking block according to an embodiment of the present invention;

fig. 7 is a schematic view of a position relationship between the limit pin and the limit groove according to an embodiment of the present invention.

In the figure: 100-mounting the assembly; 110-a valve seat; 111-a limiting groove; 112-a chute; 120-a valve body; 130-a mounting shell; 131-graduation mark; 132-a signboard; 200-a drive assembly; 210-a motor; 220-a first gear; 230-a second gear; 231-a spacing pin; 2311-a limiting block; 240-valve stem; 241-a sealing ring; 242-a pointer; 250-spheres; 251-a support shaft; 252-a support base; 300-a locking assembly; 310-a drive member; 320-a locking block; 321-a slide block; 322-teeth.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Examples

Referring to fig. 1, the present invention provides a technical solution: a low-torque three-piece ball valve comprises a mounting assembly 100, a driving assembly 200 and a locking assembly 300, wherein the mounting assembly 100 is used for mounting and fixing a device, the driving assembly 200 is used for driving a valve rod 240, and the locking assembly 300 is used for locking and releasing the driving assembly 200.

Referring to fig. 1, the mounting assembly 100 includes a valve seat 110, two valve bodies 120 and a mounting shell 130, the two valve bodies 120 are fixedly mounted at two ends of the valve seat 110 by bolts, and the mounting shell 130 is fixedly mounted at the top end of the valve seat 110 by bolts, so as to realize the assembly of the overall structure of the valve element;

referring to fig. 3, 4 and 5, the driving assembly 200 includes a motor 210, a first gear 220, a second gear 230, a valve stem 240 and a ball 250, the motor 210 is fixedly mounted at the top end of the outer side of the mounting shell 130 through a bolt, the first gear 220 is fixedly mounted at the end of the output shaft of the motor 210 through a key, the second gear 230 is in meshing transmission connection with the first gear 220, the second gear 230 is fixedly mounted at one end of the valve stem 240 through a key, the first gear 220 and the second gear 230 are both disposed inside the mounting shell 130, when particularly disposed, the transmission ratio of the first gear 220 to the second gear 230 is 1:4, and further the power consumption for driving the second gear 230 to rotate is less, the torque force is small, the valve stem 240 is rotatably connected to the valve seat 110 and extends to the outer side of the valve seat 110, the ball 250 is fixedly mounted at one end of the valve stem 240 far from the second gear 230, a sealing ring 241 is sleeved on, the sealing ring 241 is fixed on the valve seat 110 to seal the valve rod 240 and the valve seat 110, thereby preventing the fluid in the valve seat 110 from leaking and playing a role in sealing. The ball 250 is disposed in the valve seat 110, a through hole (not numbered) is disposed in the middle of the ball 250, and the through hole is parallel to and perpendicular to the valve seat 110 through rotation of the ball 250, so as to communicate and close the valve body 120.

Referring to fig. 5 and 7, in an embodiment of the present invention, a limit pin 231 is embedded on the second gear 230, a limit groove 111 is formed on the valve seat 110, the limit pin 231 can be accommodated in the limit groove 111 and slide along the limit groove 111, the second gear 230 drives the limit pin 231 to slide in the limit groove 111 when rotating, until the limit pin 231 reaches the two end positions of the limit groove 111, the limit pin 231 cannot slide continuously, and further the second gear 230 cannot rotate continuously, the two end positions of the limit groove 111 are the positions where the ball 250 communicates and closes with the valve seat 110, so as to communicate and close the valve body 120, thereby achieving a limiting effect, a limit block 2311 is fixed at one end of the limit pin 231, which is far away from the limit groove 111, the limit block 2311 is disposed on the second gear 230, thereby preventing the limit pin from falling out of the second gear 231, and achieving the limiting effect.

Referring to fig. 2 and 3, a support shaft 251 is fixedly welded to a side of the ball 250 away from the valve rod 240, the support shaft 251 is rotatably connected to a support seat 252, the support seat 252 is fixedly mounted on the valve seat 110, the support shaft 251 and the valve rod 240 are coaxial and function to support the ball 250, so as to improve stability and firmness of the ball 250 during rotation, it should be noted that an indication needle 242 is fixedly mounted at an upper end of the valve rod 240, the indication needle 242 is disposed at an outer side of the mounting housing 130, scale marks 131 are fixed on the mounting housing 130, the scale marks 131 are disposed at a plurality of angles, the scale marks 131 are distributed on the mounting housing 130 at 90 degrees, the scale marks 131 and the indication needle 242 cooperate to indicate a rotation angle of the ball 250, identification plates 132 are disposed at two sides of the scale marks 131, the identification plates 132 are used for identifying a working state of the ball 250, the identification plates 132 at two sides of the scale marks 131 are respectively written with, when the pointer 242 is directed to the "on" signboard 132, it indicates that the valve body 120 is in the fully opened state, and when the pointer 242 is directed to the "off" signboard 132, it indicates that the valve body 120 is in the closed state.

Referring to fig. 5 and 6, the locking assembly 300 includes a driving member 310 and a locking block 320, the driving member 310 is fixedly mounted on the mounting shell 130 through a bolt, the driving member 310 can be a hydraulic cylinder or an electric push rod, the locking block 320 is fixedly mounted on the driving member 310, one end of the locking block 320 away from the driving member 310 is provided with teeth 322, and the teeth 322 can be clamped to the second gear 230, so as to lock and fix the second gear 230. In an embodiment of the present invention, the sliding block 321 is fixed on the locking block 320, the sliding groove 112 is opened on the valve seat 110, the sliding block 321 can be accommodated in the sliding groove 112 and can slide along the sliding groove 112, so as to realize the position limitation and the guiding when the locking block 320 slides.

Specifically, the working principle of the low-torque three-piece ball valve is as follows: the motor 210 drives the first gear 220 to rotate, the first gear 220 drives the second gear 230 to rotate, the second gear 230 drives the valve rod 240 to rotate, the valve rod 240 drives the ball 250 to rotate in the valve seat 110, and the valve seat 110 realizes position conversion;

meanwhile, the valve rod 240 drives the indicating needle 242 to rotate, the indicating needle 242 rotates on the upper side of the mounting shell 130, and the rotating angle and the position of the sphere 250 can be known through the cooperation of the indicating needle 242 and the scale marks 131 on the mounting shell 130, so that the flow rate of fluid in the valve body 120 can be known, and the work is convenient;

after the position of the ball 250 is adjusted, the driving member 310 pushes the locking block 320 forward, and then the locking block 320 slides forward along the sliding chute 112 under the driving of the sliding block 321 until the teeth 322 at the front end of the locking block 320 are meshed with the second gear 230, so that the locking of the second gear 230 is realized, the second gear 230 cannot rotate, and then the ball 250 cannot rotate, so that the locking of the ball 250 is realized;

when the second gear 230 rotates, the limiting pin 231 is driven to slide in the limiting groove 111 until the limiting pin 231 reaches the positions of the two ends of the limiting groove 111, the limiting pin 231 cannot slide continuously, and further the second gear 230 cannot rotate continuously, the positions of the two ends of the limiting groove 111 are positions where the ball 250 is communicated with and closed by the valve seat 110, so that the valve body 120 is communicated and closed, and a limiting effect is achieved.

It should be noted that the specific model specifications of the motor 210 and the driving member 310 need to be determined by model selection according to the actual specification of the device, and the specific model selection calculation method adopts the prior art, so detailed description is omitted.

The power supply of the motor 210 and the drive 310 and the principle thereof will be clear to a person skilled in the art and will not be described in detail here.

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 (10)

1. A low-torque three-piece ball valve is characterized by comprising

The mounting assembly (100) comprises a valve seat (110), two valve bodies (120) and a mounting shell (130), wherein the two valve bodies (120) are fixedly mounted at two ends of the valve seat (110), and the mounting shell (130) is fixedly mounted on the valve seat (110);

the driving assembly (200) comprises a motor (210), a first gear (220), a second gear (230), a valve rod (240) and a ball body (250), wherein the motor (210) is fixedly installed on the installation shell (130), the first gear (220) is fixedly installed on the motor (210), the second gear (230) is in transmission connection with the first gear (220), the second gear (230) is fixedly installed at one end of the valve rod (240), the valve rod (240) is in rotary connection with the valve seat (110), the ball body (250) is fixedly installed at one end, away from the second gear (230), of the valve rod (240), and the ball body (250) is arranged in the valve seat (110);

locking subassembly (300), locking subassembly (300) include driving piece (310) and locking piece (320), driving piece (310) fixed mounting in installation shell (130), locking piece (320) fixed mounting in driving piece (310), locking piece (320) can the joint in second gear (230).

2. A low-torque three-piece ball valve according to claim 1, wherein a sliding block (321) is fixed to the locking block (320), a sliding slot (112) is formed in the valve seat (110), and the sliding block (321) can be accommodated in the sliding slot (112) and can slide along the sliding slot (112).

3. A low torque three-piece ball valve according to claim 2, wherein the end of the locking block (320) remote from the driver (310) is provided with teeth (322), and the teeth (322) can be engaged with the second gear (230).

4. A low torque three-piece ball valve according to claim 1, wherein a support shaft (251) is fixed to a side of the ball (250) away from the valve stem (240), the support shaft (251) is rotatably connected with a support seat (252), and the support seat (252) is fixedly mounted on the valve seat (110).

5. A low-torque three-piece ball valve according to claim 1, wherein an indicator needle (242) is fixed to an end of the valve stem (240) far away from the ball body (250), the indicator needle (242) is arranged outside the mounting shell (130), and scale marks (131) are fixed on the mounting shell (130), and the scale marks (131) and the indicator needle (242) are matched to indicate the rotation angle of the ball body (250).

6. A low-torque three-piece ball valve according to claim 5, wherein identification plates (132) are provided on both sides of the graduation marks (131), and the identification plates (132) are used for identifying the working state of the ball body (250).

7. A low-torque three-piece ball valve according to claim 1, wherein a limit pin (231) is fixed to the second gear (230), a limit groove (111) is formed in the valve seat (110), and the limit pin (231) can be accommodated in the limit groove (111) and slide along the limit groove (111).

8. A low-torque three-piece ball valve according to claim 7, wherein a stopper (2311) is fixed to an end of the stopper pin (231) away from the stopper groove (111), and the stopper (2311) is disposed on the second gear (230).

9. A low torque three-piece ball valve according to claim 1, wherein a sealing ring (241) is sleeved on the valve stem (240), and the sealing ring (241) is fixed on the valve seat (110).

10. A low torque three-piece ball valve according to claim 1, wherein the first gear (220) and the second gear (230) have a gear ratio of 1: 4.

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