One-way valve capable of preventing valve element from vibrating
By setting the limit ring and limit assembly in the check valve, and using the clamping mechanism of the rotating column and limit plate, the axial tremor problem of the valve core when the fluid pressure is unstable is solved, and the stability of the fluid flow is achieved.
Patent Information
- Application Number
- CN202422586154.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-25
- Publication Date
- 2025-08-01
- Estimated Expiration
- 2034-10-25
AI Technical Summary
During the shaking process of the ship, the valve core is opened to the maximum stroke and causes axial tremor due to unstable fluid pressure, affecting the flow stability.
The limiting ring and limiting assembly are provided in the check valve, including a rotating column and a limiting plate. When the valve core is pushed to the maximum stroke by fluid, the rotating column will drive the limiting plate to connect to the limiting ring to prevent the valve core from rebounding.
The stability of the valve core under unstable fluid pressure is achieved, ensuring the stability of the fluid flow rate.
Smart Images
Figure CN223178232U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of one-way valves, and in particular relates to a one-way valve for preventing valve core vibration. Background Art
[0002] A check valve allows fluid to flow in only one direction, automatically opening and closing according to the fluid's pressure. When used on vehicles, such as ships, the inevitable swaying of the vessel during movement can affect the pressure of the fluid within the valve, leading to unstable fluid pressure.
[0003] When the valve core of the one-way valve is opened to the maximum stroke, if the fluid pressure is unstable at this time, the valve core cannot be fully limited, and the valve core is prone to axial vibration as the spring rebounds, affecting the flow stability.
[0004] Therefore, it is urgent to design a one-way valve that prevents valve core vibration to solve the technical problem that the valve core vibrates axially when the valve core is opened to the maximum stroke, resulting in unstable fluid flow.
[0005] It should be noted that the above information disclosed in this Background section is only for understanding the background technology of the present application concept, and therefore, it may contain information that does not constitute prior art. Utility Model Content
[0006] The embodiments of the present disclosure at least provide a one-way valve that prevents valve core chattering.
[0007] In a first aspect, an embodiment of the present disclosure provides a one-way valve for preventing valve core chattering, comprising: a valve body, wherein a limit ring is provided inside the valve body;
[0008] A valve core, one side of which is provided with a limiting assembly engaged with the limiting ring;
[0009] The limit assembly includes: a rotating column, a valve stem connected to the valve core, and a limit position is provided on the valve stem; the rotating column is eccentrically inserted from the end of the valve stem into the bottom of the limit position, and the rotating column is rotatably connected to the valve stem; a limit plate is provided on the side wall of the rotating column and is located in the limit position;
[0010] When the fluid pushes the valve core to the maximum stroke, the limit position completely passes through the limit ring, and the rotating column rotates to one side, driving the limit plate to swing to the same side to form a protrusion higher than the side wall of the valve stem. The protrusion is engaged and locked with the limit ring when the valve core retracts.
[0011] In an optional embodiment, the limit position includes an axial strip hole opened on the side wall of the valve stem;
[0012] The limiting plate is located in the strip hole before swinging.
[0013] In an alternative embodiment, one inner side wall of the strip-shaped hole is a limiting wall;
[0014] After the limiting wall is attached to the limiting plate, the limiting plate is restricted from swinging towards the side of the limiting wall.
[0015] In an alternative embodiment, a plurality of spiral vanes are provided on the side wall of the rotating column;
[0016] When the fluid flows through the spiral vanes, the rotating column rotates.
[0017] In an alternative embodiment, the end of the rotating column inserted into the valve stem is elastically connected to the valve stem through a torsion spring, so that after the fluid stops flowing, the rotating column rotates in the reverse direction to reset.
[0018] In an alternative embodiment, a mating hole is formed in the end face of the end of the rotating column inserted into the valve stem;
[0019] The front section of the torsion spring is located in the mating hole, and the rear section is inserted into the valve stem.
[0020] In an alternative embodiment, the one-way valve for preventing the valve core from trembling further includes a return spring, and the return spring is located between the valve core and the limiting ring.
[0021] In a second aspect, an embodiment of the present disclosure further provides a one-way valve for preventing the valve core from trembling, including: a valve body, inside which a limiting ring is provided;
[0022] A valve core, on one side of which a limiting component engaged with the limiting ring is provided;
[0023] A return spring, which is located between the valve core and the limiting ring;
[0024] Wherein, the limiting component includes: a rotating column, a valve stem connected to the valve core, and a limiting station is provided on the valve stem; the rotating column is eccentrically inserted into the bottom of the limiting station from the end of the valve stem, and the end of the inserted end is elastically connected to the valve stem through a torsion spring; a limiting plate is provided on the side wall of the rotating column and is located within the limiting station;
[0025] When the fluid pushes the valve core to the maximum stroke, the return spring is compressed, the limiting station completely passes through the limiting ring, the rotating column rotates to one side, so as to drive the limiting plate to swing to the same side to form a protruding portion higher than the side wall of the valve stem, and the elasticity of the return spring causes the protruding portion to be engaged and locked with the limiting ring.
[0026] In an alternative embodiment, a plurality of spiral vanes are provided on the side wall of the rotating column;
[0027] When the fluid flows through the spiral vanes, the rotating column rotates; and
[0028] A mating hole is formed in the end face of the end of the rotating column inserted into the valve stem;
[0029] The front section of the torsion spring is located within the mating hole, and the rear section is inserted into the valve stem.
[0030] The beneficial effects of the present utility model are as follows. By providing a rotating column and a limiting plate, when the valve core is opened to the maximum stroke, the rotating column rotates to enable the limiting plate to be clamped to the limiting ring, achieving the effect of stabilizing the valve core and further achieving the effect of stabilizing the fluid flow rate.
[0031] Other features and advantages of the present utility model will be described in the following description, and some will become obvious from the description or can be understood by implementing the present utility model. The objectives and other advantages of the present utility model are achieved and obtained by the structures specifically pointed out in the description, claims, and drawings.
[0032] To make the above objectives, features, and advantages of the present utility model more obvious and understandable, the following provides preferred embodiments in conjunction with the accompanying drawings and makes a detailed description as follows. Description of the Drawings
[0033] To more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following briefly introduces the drawings required for the description of the specific embodiments or the prior art. Obviously, the following drawings are some embodiments of the present utility model, and those of ordinary skill in the art can obtain other drawings based on these drawings without creative efforts.
[0034] Figure 1 A cross-sectional schematic diagram of a one-way valve for preventing valve core tremor provided by an embodiment of the present disclosure;
[0035] Figure 2 A schematic diagram of the clamped state of a limiting plate and a limiting ring provided by an embodiment of the present disclosure;
[0036] Figure 3 A schematic diagram of the installation position of a torsion spring provided by an embodiment of the present disclosure;
[0037] Figure 4 For Figure 3 A partial enlarged schematic diagram of part A in
[0038] In the figure:
[0039] 1. Valve body; 11. Limiting ring;
[0040] 2. Valve core; 21. Valve stem; 22. Limiting station; 23. Strip-shaped hole; 24. Limiting wall;
[0041] 3. Rotating column; 31. Limiting plate; 32. Spiral blade; 33. Mating hole; 34. Torsion spring;
[0042] 4. Return spring Specific embodiments
[0043] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Apparently, the described embodiments are some but not all of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.
[0044] It has been found through research that in the related art, a check valve is a valve that allows fluid to flow in only one direction and can be automatically opened or closed according to the fluid pressure. When used in a vehicle, such as a ship, during its travel, the ship will shake, and these inevitable shakes will affect the fluid pressure in the valve, resulting in unstable fluid pressure.
[0045] When the valve core of the check valve is opened to the maximum stroke, if the fluid pressure is unstable at this time, the valve core cannot be fully limited, and the valve core is prone to axial tremors with the spring rebound, affecting the flow stability.
[0046] Therefore, there is an urgent need to design a check valve that prevents the valve core from trembling to solve the above technical problem that when the valve core is opened to the maximum stroke, the valve core has axial tremors, resulting in unstable fluid flow.
[0047] The following will describe in detail some embodiments of the present utility model with reference to the accompanying drawings. Without conflict, the following embodiments and the features in the embodiments can be combined with each other.
[0048] It should be noted that similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. In addition, in the drawings, for the effective description of the technical content, the thickness of the components can be exaggerated or reduced.
[0049] Based on the above research, to solve the above technical problem, refer to Figure 1, at least one embodiment provides a check valve for preventing valve core tremor, including: a valve body 1, a valve core 2 and a return spring 4. Fluid pushes the valve core 2 to move axially along the valve body 1 to open the valve. After the fluid flow is cut off, the return spring 4 returns the valve core 2 to its original position to close the valve. A limiting ring 11 is arranged inside the valve body 1, and a limiting component for clamping with the limiting ring 11 is arranged on one side of the valve core 2. The limiting component includes: a rotating column 3 and a valve rod 21 connected to the valve core 2. The valve rod 21 is sleeved inside the limiting ring 11, and a limiting station 22 is opened on the valve rod 21. The rotating column 3 is eccentrically inserted into the bottom of the limiting station 22 from the end of the valve rod 21, and a limiting plate 31 is arranged on the side wall of the rotating column 3. The limiting plate 31 is located inside the limiting station 22. The rotating column 3 is adapted to rotate to drive the limiting plate 31 to swing eccentrically relative to the valve rod 21. After the fluid pushes the valve core 2 to open, the rotating column 3 is triggered to rotate to one side, and the limiting plate 31 also swings eccentrically to one side relative to the valve rod 21. When the valve core 2 is opened to the maximum stroke, the limiting station 22 completely passes through the limiting ring 11, and the limiting plate 31 continues to swing eccentrically to one side to form a protruding part higher than the side wall of the valve rod 21. This protruding part is clamped with the limiting ring 11 to prevent the valve core 2 from rebounding with the return spring 4 before the fluid flow is cut off, realizing the stabilization of the valve core, and thus achieving the effect of stabilizing the fluid flow rate.
[0050] To achieve the effect of the return spring 4 returning the valve core 2 to its original position, refer to Figure 1 , in some embodiments, the return spring 4 is located between the valve core 2 and the limiting ring 11. After the fluid pushes the valve core 2 to open and move axially towards the limiting ring 11, the return spring 4 is compressed to generate elastic potential energy. When the fluid flow is cut off, the return spring 4 restores, and the elastic potential energy pushes the valve core 2 to return to its original position.
[0051] To further achieve the effect of the valve core 2 rebounding with the return spring 4 to return to its original position after the fluid flow is cut off, refer to Figure 2 and Figure 3 , in some embodiments, the limiting station 22 includes an axial strip hole 23 opened on the side wall of the valve rod 21. Before the limiting plate 31 swings, it is located inside the strip hole 23. The rotating column 3 inserted into the end of the valve rod 21 is elastically connected to the valve rod 21 through a torsion spring 34. After the fluid stops flowing, the rotating column 3 rotates reversely to return to its original position, and the limiting plate 31 returns to a state where it is completely located inside the strip hole 23, and the return of the valve core 2 is no longer blocked.
[0052] The following specifically describes the installation position of the torsion spring 34. Refer to Figure 4 , in some embodiments, a fitting hole 33 is opened on the end face of the rotating column 3 inserted into one end of the valve rod 21. The first half of the torsion spring 34 is located inside the fitting hole 33, and the second half is inserted into the valve rod 21 to achieve the effect of elastically connecting the rotating column 3 and the valve rod 21.
[0053] To achieve the effect of the rotating column 3 rotating to one side under fluid flow, refer to Figure 1, in some embodiments, a section of the side wall of the rotating column 3 located outside the valve stem 21 is provided with a plurality of spiral vanes 32. When the fluid flows through the spiral vanes 32, it drives the rotating column 3 to rotate to one side.
[0054] The effect of the limiting station 22 on restricting the limiting plate 31 will be specifically described below. Refer to Figure 2 , in some embodiments, the limiting station 22 includes an axial strip hole 23 opened on the side wall of the valve stem 21. The inner side walls of the strip hole 23 are respectively a starting wall and a limiting wall 24. Before the limiting plate 31 swings, one side of it closely adheres to the starting wall. The limiting plate 31 swings as the rotating column 3 rotates until the other side of the limiting plate 31 fits with the limiting wall 24. After that, the limiting wall 24 restricts the limiting plate 31 from continuing to swing towards the side of the limiting wall 24.
[0055] It is also worth mentioning that in some examples, during the process of the fluid pushing the valve core 2 to open until the valve core 2 is opened to the maximum stroke, the fluid triggers the rotating column 3 to rotate to one side. The eccentric swing of the limiting plate 31 relative to the valve stem 21 to one side is not sufficient to form a protrusion higher than the side wall of the valve stem 21. That is to say, the limiting plate 31 will not abut against the inner wall of the limiting ring 11, nor will it affect the axial movement of the valve core 2. Only when the valve core 2 is opened to the maximum stroke and then the limiting plate 31 continues to swing eccentrically to one side will a protrusion higher than the side wall of the valve stem 21 be formed to achieve the effect of clamping the limiting ring 11.
[0056] In addition, refer to Figure 1 、 Figure 2 and Figure 3, at least one embodiment provides a check valve for preventing the spool from trembling, including: a valve body 1, a spool 2 and a return spring 4. The fluid pushes the spool 2 to move axially along the valve body 1 to open the valve, and after the flow is cut off, the return spring 4 resets the spool 2 to close the valve. A limiting ring 11 is arranged inside the valve body 1, and a limiting component for clamping with the limiting ring 11 is arranged on one side of the spool 2. The limiting component includes: a rotating column 3 and a valve stem 21 connected to the spool 2. The valve stem 21 is sleeved inside the limiting ring 11, and a limiting station 22 is formed on the valve stem 21. The rotating column 3 is eccentrically inserted into the bottom of the limiting station 22 from the end of the valve stem 21, and a limiting plate 31 is arranged on the side wall of the rotating column 3. The limiting plate 31 is located inside the limiting station 22. A plurality of spiral blades 32 are arranged on a section of the side wall of the rotating column 3 outside the valve stem 21. When the fluid flows through the spiral blades 32, it drives the rotating column 3 to rotate to one side, so as to drive the limiting plate 31 to swing eccentrically relative to the valve stem 21. When the fluid pushes the spool 2 to open and moves axially towards the limiting ring 11, the fluid simultaneously triggers the rotating column 3 to rotate to one side, and the limiting plate 31 also swings eccentrically to one side relative to the valve stem 21. When the spool 2 is opened to the maximum stroke, the limiting plate 31 continues to swing eccentrically to one side to form a protruding part higher than the side wall of the valve stem 21, and this protruding part is clamped with the limiting ring 11 to prevent the spool 2 from rebounding with the return spring 4 before the flow is cut off. It is worth mentioning that the end of the rotating column 3 inserted into the valve stem 21 is elastically connected to the valve stem 21 through a torsion spring 34, so that after the fluid stops flowing, the rotating column 3 rotates reversely to reset, and the limiting plate 31 returns to the limiting station 22, and the reset of the spool 2 is no longer blocked. The setting of the above components enables the protruding part of the limiting plate 31 higher than the side wall of the valve stem 21 to be clamped with the limiting ring 11 after the spool 2 is opened to the maximum stroke, preventing the spool 2 from rebounding with the return spring 4 before the flow is cut off, realizing the stabilization of the spool, and thus achieving the effect of stabilizing the fluid flow rate.
[0057] As used herein, phrases such as "at least one embodiment" and "in some embodiments" generally refer to the fact that the specific features, structures or characteristics after such phrases can be included in at least one embodiment of the present disclosure. Therefore, specific features, structures or characteristics can be included in more than one embodiment of the present disclosure, such that these phrases do not necessarily refer to the same embodiment. As used herein, terms such as "example", "exemplary", etc. are used "for purposes of example, instance or illustration. Any embodiment, aspect or design described herein as "example" or "exemplary" is not necessarily to be construed as preferred or superior to other embodiments, aspects or designs. Instead, the use of terms such as "example", "exemplary", etc. is intended to present concepts in a specific manner.
[0058] In the description of the embodiments of the present utility model, unless otherwise clearly defined and limited, the terms "installation", "connection", and "coupling" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0059] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, terms such as "first", "second" and other numerical terms used herein do not imply an order or sequence unless clearly indicated in the present text. Therefore, without departing from the teachings of the exemplary embodiments, the first element, component, region, layer or section discussed above may be referred to as the second element, component, region, layer or section.
[0060] Based on the above inspiration from the ideal embodiments of the present utility model, through the above description, relevant workers can completely make various changes and modifications without departing from the technical idea of the present utility model. The technical scope of the present utility model is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.
Claims
1. A one-way valve for preventing the tremor of a valve core, characterized in that, Comprising: A valve body (1) with a limiting ring (11) arranged inside thereof; A valve core (2) with a limiting component arranged on one side thereof and clamped with the limiting ring (11); Wherein, the limiting component includes: a rotating column (3), a valve stem (21) connected to the valve core (2), and a limiting station (22) is formed on the valve stem (21); the rotating column (3) is eccentrically inserted into the bottom of the limiting station (22) from the end of the valve stem (21), and the rotating column (3) is rotatably connected to the valve stem (21); a limiting plate (31) is arranged on the side wall of the rotating column (3) and is located inside the limiting station (22); When the fluid pushes the valve core (2) to the maximum stroke position, the limiting station (22) completely passes through the limiting ring (11), and the rotating column (3) rotates to one side to drive the limiting plate (31) to swing to the same side to form a protruding part higher than the side wall of the valve stem (21), and this protruding part is clamped and locked with the limiting ring (11) when the valve core (2) retracts.
2. The one-way valve for preventing the valve core from trembling according to claim 1, characterized in that The limiting station (22) includes an axial strip-shaped hole (23) formed on the side wall of the valve stem (21); The limiting plate (31) is located inside the strip-shaped hole (23) before swinging.
3. The one-way valve for preventing the valve core from trembling according to claim 2, characterized in that One inner side wall of the strip-shaped hole (23) is a limiting wall (24); After the limiting wall (24) fits with the limiting plate (31), it restricts the limiting plate (31) from swinging to the side of the limiting wall (24).
4. The one-way valve for preventing the valve core from trembling according to claim 1, characterized in that A plurality of spiral blades (32) are arranged on the side wall of the rotating column (3); When the fluid flows through the spiral blades (32), the rotating column (3) rotates.
5. The one-way valve for preventing the valve core from trembling according to claim 4, characterized in that The end of the rotating column (3) inserted into the valve stem (21) is elastically connected to the valve stem (21) through a torsion spring (34), so that after the fluid stops flowing, the rotating column (3) rotates reversely to reset.
6. The one-way valve for preventing the valve core from trembling according to claim 5, characterized in that A mating hole (33) is formed on the end face of the end of the rotating column (3) inserted into the valve stem (21); The front section of the torsion spring (34) is located inside the mating hole (33), and the rear section thereof is inserted into the valve stem (21).
7. The one-way valve for preventing the valve core from trembling according to claim 1, characterized in that The one-way valve for preventing the valve core from trembling further includes a return spring (4), and the return spring (4) is located between the valve core (2) and the limiting ring (11).
8. A one-way valve for preventing the spool from trembling, characterized in that, Comprising: A valve body (1) with a limiting ring (11) arranged inside thereof; A valve core (2) with a limiting component arranged on one side thereof and clamped with the limiting ring (11); A return spring (4) located between the valve core (2) and the limiting ring (11); Among them, the limiting component includes: a rotating column (3) and a valve rod (21) connected to the valve core (2). A limiting station (22) is provided on the valve rod (21); the rotating column (3) is eccentrically inserted into the bottom of the limiting station (22) from the end of the valve rod (21), and the end of the inserted end is elastically connected to the valve rod (21) through a torsion spring (34); a limiting plate (31) is provided on the side wall of the rotating column (3) and is located within the limiting station (22). When the fluid pushes the valve core (2) to the maximum stroke, the return spring (4) is compressed, the limiting station (22) completely passes through the limiting ring (11), and the rotating column (3) rotates to one side, driving the limiting plate (31) to swing to the same side to form a protruding portion higher than the side wall of the valve rod (21). The elasticity of the return spring (4) causes the protruding portion to be clamped and locked with the limiting ring (11).
9. The one-way valve for preventing valve core tremor according to claim 8, wherein a plurality of spiral blades (32) are provided on the side wall of the rotating column (3); when the fluid flows through the spiral blades (32), the rotating column (3) rotates; and a mating hole (33) is provided on the end face of one end of the rotating column (3) inserted into the valve rod (21); the front section of the torsion spring (34) is located within the mating hole (33), and the rear section is inserted into the valve rod (21).