CN217539816U - Long service life's air-vent valve - Google Patents
Long service life's air-vent valve Download PDFInfo
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- CN217539816U CN217539816U CN202221120859.2U CN202221120859U CN217539816U CN 217539816 U CN217539816 U CN 217539816U CN 202221120859 U CN202221120859 U CN 202221120859U CN 217539816 U CN217539816 U CN 217539816U
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- guide cylinder
- sealing ring
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Abstract
The utility model provides an air-vent valve with long service life, which comprises a valve body and a valve core, wherein the middle of the valve body is communicated, and two ends of the valve body are respectively provided with a medium inlet and a medium outlet, a guide cylinder is fixed in the valve body, a crank link mechanism is arranged in the guide cylinder, one end of the crank link mechanism is fixedly connected with a valve rod, and the other end of the crank link mechanism is connected with the valve core, the valve core comprises a circular sliding sleeve and a squirrel cage which are matched with the guide cylinder, the middle part of the circular sliding sleeve is provided with a connecting lug seat, one end of the circular sliding sleeve, which is far away from the guide cylinder, is provided with a sealing ring, and the medium outlet is provided with a valve seat which is matched and sealed with the sealing ring; the valve body external fixation has the buffer disc, the utility model discloses a set up the buffer disc and can adjust more laborsavingly, reduce wearing and tearing increase of service life simultaneously.
Description
Technical Field
The utility model relates to an air-vent valve especially relates to a long service life's air-vent valve.
Background
When the existing pressure regulating valve is used, stress concentration can be caused by acting force of a medium, so that abrasion is accelerated, when the pressure regulating valve regulates the discharge capacity of a medium outlet, the acting force of the medium acting on a valve core can be increased along with the reduction of the discharge capacity, and if the pressure regulating valve is not regulated, the valve core can be in contact with a valve seat under the action of the acting force, so that the abrasion to the valve seat and the valve core is increased, and the service life is shortened;
and because the medium effect, when enlarging medium outlet discharge capacity, can receive inside medium influence, need exert big external force effect case, consequently the operation is very hard.
SUMMERY OF THE UTILITY MODEL
In view of the above, a pressure regulating valve with a long service life is provided, which includes a valve body and a valve core, the valve body has a through middle, two ends of the valve body are respectively provided with a medium inlet and a medium outlet, a guide cylinder is fixed in the valve body, a crank link mechanism is arranged in the guide cylinder, one end of the crank link mechanism is fixedly connected with a valve rod, the other end of the crank link mechanism is connected with the valve core, the valve core includes a circular sliding sleeve and a squirrel cage which are matched with the guide cylinder, a connecting lug seat is arranged in the middle of the circular sliding sleeve, one end of the circular sliding sleeve, which is far away from the guide cylinder, is provided with a sealing ring, and a valve seat which is matched and sealed with the sealing ring is arranged at the medium outlet;
a buffer disc is fixed outside the valve body, the valve rod penetrates into the buffer disc, a first gear is fixed on the valve rod and is positioned at the center of the buffer disc, the first gear is meshed with a second gear, a connecting rod is fixed on the second gear, and a spring is connected between the connecting rod and a fixed rod fixed on the peripheral wall of the buffer disc;
the spring is stretched when the sealing ring moves towards the valve seat, and the spring resets when the sealing ring is far away from the valve seat.
As a further improvement of the above scheme:
preferably, the other end of the valve rod is further connected with a self-locking structure, the self-locking structure comprises a worm wheel at the tail end of the valve rod, the worm wheel is meshed with a worm, a first driving wheel is fixed to the top of the worm, the driving wheel is connected with a second driving wheel through a driving belt, the second driving wheel is fixedly connected with an operating rod, and an operating panel is fixed to the tail end of the operating rod.
Preferably, the operating lever is disposed vertically upward.
Preferably, a connecting plate is fixed on the outer wall of the guide shell, and the outer side of the connecting plate is fixedly connected with the inner wall of the valve body.
Preferably, the sealing ring is further sleeved with a first sealing ring.
Preferably, a plurality of sealing grooves are formed in the contact surface of the guide shell and the circular sliding sleeve, and a second sealing ring is sleeved in each sealing groove.
Compared with the prior art, the beneficial effects of the utility model are that:
when the valve rod rotates forwards, the first gear is driven to rotate forwards, the first gear can be driven to rotate reversely by the forward rotation of the first gear, so that the connecting rod on the second gear is close to the fixed rod, the spring can reset, meanwhile, the crank connecting rod mechanism is driven by the forward rotation of the valve rod, the crank connecting rod mechanism drives the circular sliding sleeve to retract into the guide cylinder, the spring can provide assistance by resetting, so that the guide cylinder can be adjusted to retract more easily, and the brake is opened more easily;
when the valve rod rotates reversely, the first gear is driven to rotate reversely, the first gear rotates reversely to drive the second gear to rotate forwardly, so that the connecting rod on the second gear is far away from the fixing rod, the spring can be stretched, and in the process, the medium outlet is compressed along with the fact that the circular sliding sleeve is close to the valve seat, the force applied by the medium to the valve seat is larger, part of internal force can be offset through stretching of the spring, the sealing ring can be prevented from being in rigid contact with the valve seat, and stress is prevented from being concentrated at the worm gear; thereby effectively prolonging the service life.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is an explosion structure diagram of the present invention.
Fig. 3 is one of the enlarged partial views of the present invention.
Fig. 4 is a second enlarged view of the present invention.
In the figure: 1. a valve body; 2. an operation panel; 3. a buffer tray; 4. a media inlet; 5. a media outlet; 6. a mouse cage; 7. a draft tube; 8. a circular sliding sleeve; 9. a seal ring; 10. a valve stem; 11. a crank link mechanism; 12. a second transmission wheel; 13. a first drive pulley; 14. fixing the rod; 15. a connecting rod; 16. a second gear; 17. a first gear; 18. a spring.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like indicate orientations or positional relationships that are based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and simplicity of description, rather than to 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 invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example (b):
referring to fig. 1-4, a pressure regulating valve with long service life comprises a valve body 1 and a valve core, wherein the middle of the valve body 1 is through, two ends of the valve body are respectively provided with a medium inlet 4 and a medium outlet 5, a guide cylinder 7 is fixed in the valve body 1, a crank connecting rod 15 mechanism 11 is arranged in the guide cylinder 7, one end of the crank connecting rod 15 mechanism 11 is fixedly connected with a valve rod 10, the other end of the crank connecting rod 15 mechanism is connected with the valve core, the valve core comprises a circular sliding sleeve 8 and a squirrel cage 6 which are matched with the guide cylinder 7, a connecting lug seat is arranged in the middle of the circular sliding sleeve 8, a sealing ring 9 is arranged at one end of the circular sliding sleeve 8, which is far away from the guide cylinder 7, and a valve seat which is matched and sealed with the sealing ring 9 is arranged at the position of the medium outlet 5;
a buffer disc 3 is fixed outside the valve body 1, the valve rod 10 penetrates into the buffer disc 3, a first gear 17 is fixed on the valve rod 10, the first gear 17 is located at the center of the buffer disc 3, the first gear 17 is meshed with a second gear 16, a connecting rod 15 is fixed on the second gear 16, and a spring 18 is connected between the connecting rod 15 and a fixed rod 14 fixed on the peripheral wall of the buffer disc 3;
when the sealing ring 9 moves towards the valve seat, the spring 18 is stretched, and when the sealing ring 9 moves away from the valve seat, the spring 18 is reset; the elasticity of the spring 18 can provide assistance when the sealing ring 9 is far away from the valve seat and provides a buffer effect when the sealing ring 9 is close to the valve seat, so that the valve body 1 is operated more laborsavingly and the service life is prolonged.
The other end of the valve rod 10 is further connected with a self-locking structure, the self-locking structure comprises a worm wheel at the tail end of the valve rod 10, the worm wheel is meshed with a worm, a first transmission wheel 13 is fixed to the top of the worm, the transmission wheel is connected with a second transmission wheel 12 through a transmission belt, the second transmission wheel 12 is fixedly connected with an operating rod, an operating disc 2 is fixed to the tail end of the operating rod, self-locking can be achieved through the worm wheel and the worm, and therefore the discharge capacity of the medium outlet 5 can be fixed at will.
The operating rod is vertically arranged upwards, so that the operation is more convenient and faster.
The outer wall of the guide cylinder 7 is fixedly provided with a connecting plate, the outer side of the connecting plate is fixedly connected with the inner wall of the valve body 1, so that a medium can pass through a gap between the guide cylinder 7 and the outer wall of the valve body 1, and the discharge capacity of the pressure regulating valve is regulated by regulating the circular sliding sleeve 8 and the squirrel cage 6.
The sealing ring 9 is also sleeved with a first sealing ring, so that the sealing effect can be effectively improved.
A plurality of seal grooves are formed in the contact surface of the guide cylinder 7 and the circular sliding sleeve 8, a second seal ring is sleeved in each seal groove, and a baffle is further arranged in each circular sliding sleeve 8, so that the circular sliding sleeves 8, the baffle and the guide cylinder 7 form a seal space, and the influence of a medium on a crank mechanism is avoided.
The utility model discloses a theory of operation does: the operating rod is driven to rotate through the operating panel 2, the operating rod drives the second transmission wheel 12 to rotate, the second transmission wheel 12 drives the first transmission wheel 13 to rotate through the transmission belt, the first transmission wheel 13 drives the worm to rotate, the worm drives the worm wheel to rotate, and the worm wheel rotates to drive the valve rod 10 to rotate;
the valve rod 10 is driven to rotate forwards and backwards through the forward rotation and the reverse rotation of the operating panel 2;
when the valve rod 10 rotates forwards, the first gear 17 is driven to rotate forwards, the first gear 17 rotates forwards to drive the second gear 16 to rotate reversely, so that the connecting rod 15 on the second gear 16 is close to the fixed rod 14, the spring 18 can reset, meanwhile, the valve rod 10 rotates forwards to drive the crank connecting rod 15 mechanism 11, the crank connecting rod 15 mechanism 11 drives the circular sliding sleeve 8 to retract into the guide cylinder 7, and the spring 18 resets to provide assistance to enable the guide cylinder 7 to be adjusted to retract more easily, so that the brake is opened more easily;
when the valve rod 10 rotates reversely, the first gear 17 is driven to rotate reversely, the second gear 16 is driven to rotate forwardly by the reverse rotation of the first gear 17, so that the connecting rod 15 on the second gear 16 is far away from the fixed rod 14, the spring 18 is stretched, and in this time, the medium outlet 5 is compressed along with the approach of the circular sliding sleeve 8 to the valve seat, the force applied by a medium to the valve seat is larger, a part of internal force can be offset by the stretching of the spring 18, the rigid contact between the sealing ring 9 and the valve seat can be avoided, and the stress is prevented from being concentrated at the worm gear; thereby effectively prolonging the service life.
Above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the design of the present invention, equivalent replacement or change should be covered within the protection scope of the present invention.
Claims (6)
1. The utility model provides a long service life's air-vent valve, includes valve body, case, link up in the middle of the valve body, both ends are provided with medium import and medium export respectively, its characterized in that: a guide cylinder is fixed in the valve body, a crank connecting rod mechanism is arranged in the guide cylinder, one end of the crank connecting rod mechanism is fixedly connected with the valve rod, the other end of the crank connecting rod mechanism is connected with the valve core, the valve core comprises a circular sliding sleeve and a squirrel cage which are matched with the guide cylinder, a connecting lug seat is arranged in the middle of the circular sliding sleeve, one end of the circular sliding sleeve, which is far away from the guide cylinder, is provided with a sealing ring, and a valve seat which is matched and sealed with the sealing ring is arranged at a medium outlet;
a buffer disc is fixed outside the valve body, the valve rod penetrates into the buffer disc, a first gear is fixed on the valve rod and is positioned at the center of the buffer disc, the first gear is meshed with a second gear, a connecting rod is fixed on the second gear, and a spring is connected between the connecting rod and a fixed rod fixed on the peripheral wall of the buffer disc;
the spring is stretched when the sealing ring moves towards the valve seat, and the spring resets when the sealing ring is far away from the valve seat.
2. A long-life pressure regulating valve according to claim 1, characterized in that: the other end of the valve rod is further connected with a self-locking structure, the self-locking structure comprises a worm wheel at the tail end of the valve rod, the worm wheel is meshed with a worm, a first driving wheel is fixed to the top of the worm, the driving wheel is connected with a second driving wheel through a driving belt, the second driving wheel is fixedly connected with an operating rod, and an operating panel is fixed to the tail end of the operating rod.
3. The long-life pressure regulating valve according to claim 2, characterized in that: the operating rod is vertically arranged upwards.
4. A long-life pressure regulating valve according to claim 1, characterized in that: the outer wall of the guide shell is fixedly provided with a connecting plate, and the outer side of the connecting plate is fixedly connected with the inner wall of the valve body.
5. A long-life pressure regulating valve according to claim 1, characterized in that: the sealing ring is also sleeved with a first sealing ring.
6. A long-life pressure regulating valve according to claim 4, characterized in that: a plurality of sealing grooves are formed in the contact surface of the guide cylinder and the circular sliding sleeve, and second sealing rings are sleeved in the sealing grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221120859.2U CN217539816U (en) | 2022-05-11 | 2022-05-11 | Long service life's air-vent valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221120859.2U CN217539816U (en) | 2022-05-11 | 2022-05-11 | Long service life's air-vent valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217539816U true CN217539816U (en) | 2022-10-04 |
Family
ID=83435615
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221120859.2U Active CN217539816U (en) | 2022-05-11 | 2022-05-11 | Long service life's air-vent valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217539816U (en) |
-
2022
- 2022-05-11 CN CN202221120859.2U patent/CN217539816U/en active Active
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