CN209818783U - Opening and closing process sealing surface completely frictionless ball valve - Google Patents
Opening and closing process sealing surface completely frictionless ball valve Download PDFInfo
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- CN209818783U CN209818783U CN201920327810.6U CN201920327810U CN209818783U CN 209818783 U CN209818783 U CN 209818783U CN 201920327810 U CN201920327810 U CN 201920327810U CN 209818783 U CN209818783 U CN 209818783U
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Abstract
The utility model provides an open and close totally frictionless ball valve of process seal face, includes valve body, valve gap, valve rod, spheroid, disk seat, bellows, cam, ball nut, pressure spring, key, and this ball valve is fixed ball valve, and the cam links firmly with the valve rod, and threaded connection between ball nut and the valve rod, pressure spring and key link firmly, and the pressure spring passes through the key to be connected with the valve rod, and the arc radius of cam is crescent. When the valve is opened, the cam rotates along with the valve rod to jack the valve seat, the ball body does not rotate, after the ball body rotates by 30 degrees, the key leans against the ball body, the ball body continues to rotate, and after the ball body rotates by 90 degrees, the ball valve is completely opened. When the valve is closed, the key is leaned on the ball body, the ball body rotates along with the valve rod, after the ball body rotates for 90 degrees, the key exits from the deep limiting groove of the ball body and continues to rotate, the ball body cannot rotate, after the ball body rotates for 30 degrees, the valve seat is tightly pressed on the ball body, and the valve is completely closed. The beneficial effects of the utility model are that the valve is in the complete frictionless state all the time opening and closing the in-process, makes the life extension of valve, and sealing performance is more reliable.
Description
Technical Field
The patent of the utility model relates to a valve field, especially a complete frictionless ball valve of the sealed face of process of opening and close.
Background
In the existing ball valve, in the opening and closing processes of the valve, the valve seat is always contacted with the ball body, the torque is large during operation, the friction between the valve seat and the ball body is serious, the damage is easily caused, and the service life of the valve is short. At present, a friction-free opening and closing bidirectional sealing ball valve is also available, and a friction-free state cannot be realized when the ball valve is just opened and is about to be completely opened and just begins to be closed and is about to be completely closed, so that the wear condition can be caused, and the service life is shortened.
Disclosure of Invention
In order to overcome current valve and opening and the in-process of closing, the disk seat contacts with the spheroid all the time, and the moment of torsion is great during the operation, and disk seat and spheroid friction are serious, cause destruction easily, and the shorter not enough of valve life, the utility model provides an open and close sealed face of in-process and do not have friction ball valve completely.
The technical scheme adopted by the utility model for solving the technical problems is that the sealing surface of the ball valve without friction completely in the opening and closing process comprises a right valve body (1), a left valve body (2), a valve cover (3), a valve rod (4), a ball body (8), a right valve seat (6), a left valve seat (7), a right corrugated pipe (9), a left corrugated pipe (10), an upper cam (11), a lower cam (15), a ball screw nut (12), a pressure spring (13) and a key (14), wherein the ball valve is a fixed ball valve, the valve rod (4) is a special-shaped rod, a guide rod (4.1) with a limited position is arranged on the valve rod (4), the upper cam (11) and the lower cam (15) are fixedly connected with the valve rod (4), the ball screw nut (12) is in threaded connection with the valve rod (4), the pressure spring (13) is fixedly connected with the key (14), the pressure spring (13) is nested on the guide rod (4.1) through, the handle (5) is fixedly connected with the valve rod (4), and the arc radiuses of the upper cam (11) and the lower cam (15) are gradually increased.
The ball body (8) is provided with a deep limiting groove (8.1), a shallow limiting groove (8.3) and a supporting rod (8.2), the deep limiting groove (8.1) and the shallow limiting groove (8.3) limit the positions of keys (14), the supporting rod (8.2) plays a role in fixing the ball body (8), the valve cover (3) is provided with a limiting hole (1) (3.1) and a limiting hole (2.2), the limiting hole (1) (3.1) and the limiting hole (2.2) limit the position of a handle (5), the right valve body (1) is provided with a limiting groove, the limiting groove limits the position of the supporting rod (8.2) of the ball body (8), the left valve body (2) is provided with a limiting plate (2.1), and the ball screw nut (12) is limited to rotate.
And the right valve seat (6) and the left valve seat (7) are provided with ejector rods (6.1), and when the upper cam (11) and the lower cam (15) rotate, the upper cam (11) and the lower cam (15) can jack the right valve seat (6) and the left valve seat (7) through the ejector rods (6.1).
When the valve rod (4) rotates, the ball screw nut (12) can only move up and down along the valve rod (4) and cannot rotate along with the valve rod.
The pressure spring (13) is fixedly connected with the key (14), when the ball screw nut (12) moves downwards along the valve rod (4), the pressure spring (13) is pressed downwards, and the key (14) moves outwards along the guide rod (4.1) under the action of the pressure spring (13); when the ball screw nut (12) moves upwards along the valve rod (4), the compression spring (13) is loosened, and the key (14) moves inwards along the guide rod (4.1) under the action of the compression spring (13).
The utility model has the advantages that: the valve is always in a completely frictionless state in the opening and closing process, so that the service life of the valve is prolonged, and the sealing is reliable.
Drawings
The following further describes the present invention with reference to the drawings and examples.
Fig. 1 is a schematic view of the patent structure of the present invention.
Fig. 2 is a schematic structural diagram of the embodiment when the ball valve is completely closed.
Fig. 3 is a schematic structural diagram of the embodiment when the ball valve is fully opened.
Fig. 4 is a schematic view of a valve stem in an embodiment.
Fig. 5 is a schematic view of a valve seat in an embodiment.
FIG. 6 is a schematic view of a sphere in an embodiment.
Fig. 7 is a schematic diagram of the embodiment in which the compression spring and the key are fixedly connected.
Fig. 8 is a schematic view of a handle in an embodiment.
In the figure: 1: a right valve body; 2: a left valve body; 3: a valve cover; 4: a valve stem; 5: a handle; 6: a right valve seat; 7: a left valve seat; 8: a sphere; 9: a right bellows; 10: a left bellows; 11: an upper cam; 12: a ball screw nut; 13: a pressure spring; 14: a key; 15: a lower cam; 2.1: a limiting plate; 3.1: a limiting hole 1; 3.2: a limiting hole 2; 4.1: a guide bar; 6.1: a top rod; 8.1: a deep limiting groove; 8.3: shallow limiting grooves; 8.2: a support rod.
Detailed Description
The following detailed description will be given with reference to the accompanying drawings and examples, but the present invention is not limited to the examples.
As shown in fig. 1, a totally frictionless ball valve for sealing surface in opening and closing process comprises a right valve body (1), a left valve body (2), a valve cover (3), a valve rod (4), a ball body (8), a right valve seat (6), a left valve seat (7), a right corrugated pipe (9), a left corrugated pipe (10), an upper cam (11), a lower cam (15), a ball screw nut (12), a pressure spring (13) and a key (14), wherein the ball valve is a fixed ball valve and is characterized in that: the valve rod (4) is a special-shaped rod, a guide rod (4.1) with a limited position is arranged on the valve rod (4), an upper cam (11) and a lower cam (15) are fixedly connected with the valve rod (4), a ball screw nut (12) is in threaded connection with the valve rod (4), a pressure spring (13) is fixedly connected with a key (14), the pressure spring (13) is embedded on the guide rod (4.1) through the key (14) and is connected with the valve rod (4), a handle (5) is fixedly connected with the valve rod (4), and the arc radiuses of the upper cam (11) and the lower cam (15) are gradually increased.
As shown in fig. 4, the valve rod (4) is provided with a guide rod (4.1).
As shown in fig. 5, the right valve seat (6) and the left valve seat (7) are provided with push rods (6.1).
As shown in fig. 6, the ball body (8) is provided with a deep limiting groove (8.1), a shallow limiting groove (8.3) and a support rod (8.2).
As shown in fig. 7, the compression spring (13) is fixedly connected with the key (14).
As shown in fig. 2 and 3, the valve cover (3) is provided with a limiting hole 1 (3.1) and a limiting hole 2 (3.2).
As shown in fig. 3, the left valve body (2) is provided with a stopper plate (2.1) for restricting the rotation of the ball screw nut (12).
The utility model discloses a concrete use as follows, this embodiment uses opening of ball valve to close as the example.
As shown in figure 2, at the moment, the valve is in a completely closed state, the upper cam (11) and the lower cam (15) do not abut against the ejector rods (6.1) of the right valve seat (6) and the left valve seat (7), the right valve seat (6) and the left valve seat (7) are pressed on the ball body (8), the ball screw nut (12) is not pressed on the pressure spring (13), and the key (14) is positioned in the shallow limiting groove (8.3) of the ball body (8).
The starting process comprises the following steps: when the valve is opened, the handle (5) is separated from the limiting hole (3.2) of the valve cover (3), the valve rod (4) is controlled to rotate anticlockwise, at the moment, the upper cam (11) and the lower cam (15) rotate along with the valve rod (4), the upper cam (11) and the lower cam (15) prop open the right valve seat (6) and the left valve seat (7) through the jacking rod (6.1), at the moment, the ball body (8) does not rotate, the ball screw nut (12) moves downwards in the rotating process, after the ball screw nut (12) rotates by 30 degrees, the ball screw nut (12) presses on the pressure spring (13), the key (14) on the pressure spring (13) leans against the ball body (8) and continues to rotate, the valve rod (4) can drive the ball body (8) to rotate together, the ball screw nut (12) continues to press the pressure spring (13) downwards, and the key (14) extends into the deep limiting groove (8.1) of the ball body (8) along the guide rod (4.1) under the action of the pressure, after the valve is rotated by 90 degrees, the ball valve is completely opened, the handle (5) is inserted into the limiting hole 1 (3.1) of the valve cover (3), the handle (5) rotates 120 degrees counterclockwise, and the valve is smoothly opened.
And (3) closing process: when the valve is closed, the handle (5) is separated from the limiting hole 1 (3.1) of the valve cover (3), the control valve rod (4) rotates along with the needle, at the moment, the key (14) on the pressure spring (13) is positioned in the deep limiting groove (8.1) on the sphere (8), so the sphere (8) can rotate along with the valve rod (4), the ball screw nut (12) moves upwards in the rotating process, the pressure spring (13) is loosened, the key (14) slowly withdraws from the deep limiting groove (8.1) on the sphere (8), after the rotation of 90 degrees, the key (14) completely withdraws from the deep limiting groove (8.1) on the sphere (8), the valve rod (4) continues to rotate, the sphere (8) cannot rotate along with the valve rod (4), after the clockwise rotation of 30 degrees continues, the right valve seat (6) and the left valve seat (7) are pressed on the sphere (8) by the right corrugated pipe (9) and the left corrugated pipe (10) to realize sealing, the valve is completely closed, the handle (5) is inserted into the limiting hole 2 (3.2) of the valve cover (3), the handle (5) rotates clockwise by 120 degrees, and the valve is smoothly closed. Returning the entire device to the fully closed state shown in fig. 2.
The opening and closing process of explanation in this embodiment does not have the friction ball valve entirely and is only one kind of this patent is suitable for the valve, the scope that the utility model discloses a limited refers to the claim, does not violate the utility model discloses a condition, and any form of modification can be done to this patent.
Claims (4)
1. The utility model provides an open and close sealed face of process and do not have friction ball valve completely, includes right valve body (1), left valve body (2), valve gap (3), valve rod (4), spheroid (8), right valve seat (6), left disk seat (7), right bellows (9), left bellows (10), last cam (11), lower cam (15), ball screw nut (12), pressure spring (13), key (14), and this ball valve is fixed ball valve, its characterized in that: this valve rod (4) are the dysmorphism pole, go up cam (11) and lower cam (15) and valve rod (4) and link firmly, threaded connection between ball screw nut (12) and valve rod (4), pressure spring (13) link firmly with key (14), and pressure spring (13) are connected with valve rod (4) on nested guide bar (4.1) through key (14), and handle (5) and valve rod (4) link firmly, the arc radius of going up cam (11) and lower cam (15) is crescent.
2. The opening and closing process sealing surface complete frictionless ball valve according to claim 1, characterized in that: ejector rods (6.1) are arranged on the right valve seat (6) and the left valve seat (7), deep limiting grooves (8.1), shallow limiting grooves (8.3) and supporting rods (8.2) are arranged on the ball body (8), limiting holes (1 (3.1) and limiting holes (2 (3.2) are arranged on the valve cover (3), limiting grooves for limiting the supporting rods (8.2) of the ball body (8) are arranged on the right valve body (1), and limiting plates (2.1) are arranged on the left valve body (2).
3. The opening and closing process sealing surface complete frictionless ball valve according to claim 1, characterized in that: when the valve rod (4) rotates, the ball screw nut (12) can only move up and down along the valve rod (4) and cannot rotate along with the valve rod.
4. The opening and closing process sealing surface complete frictionless ball valve according to claim 1, characterized in that: the pressure spring (13) is fixedly connected with the key (14), when the ball screw nut (12) moves downwards along the valve rod (4), the pressure spring (13) is pressed downwards, and the key (14) moves outwards along the guide rod (4.1) under the action of the pressure spring (13); when the ball screw nut (12) moves upwards along the valve rod (4), the compression spring (13) is loosened, and the key (14) moves inwards along the guide rod (4.1) under the action of the compression spring (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920327810.6U CN209818783U (en) | 2019-03-15 | 2019-03-15 | Opening and closing process sealing surface completely frictionless ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920327810.6U CN209818783U (en) | 2019-03-15 | 2019-03-15 | Opening and closing process sealing surface completely frictionless ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209818783U true CN209818783U (en) | 2019-12-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920327810.6U Active CN209818783U (en) | 2019-03-15 | 2019-03-15 | Opening and closing process sealing surface completely frictionless ball valve |
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| CN (1) | CN209818783U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110030396A (en) * | 2019-03-15 | 2019-07-19 | 四川大学 | A kind of opening-closing process sealing surface is entirely without friction ball valve |
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2019
- 2019-03-15 CN CN201920327810.6U patent/CN209818783U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110030396A (en) * | 2019-03-15 | 2019-07-19 | 四川大学 | A kind of opening-closing process sealing surface is entirely without friction ball valve |
| CN110030396B (en) * | 2019-03-15 | 2023-11-10 | 四川大学 | Completely friction-free ball valve for sealing surface in opening and closing process |
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