Check valve
By introducing a damping mechanism, fan blades, and ball bearing structure into the check valve, fluid energy is converted and vibration is absorbed, thus solving the water hammer effect problem when the liquid suddenly stops, and improving the stability and service life of the system.
Patent Information
- Application Number
- CN202520884585.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-07
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2035-05-07
AI Technical Summary
Existing check valves close rapidly when the liquid suddenly stops, causing a water hammer effect, resulting in strong impacts, affecting valve wear and pipeline system stability, and reducing service life.
A check valve was designed, comprising a valve body, a shock-absorbing mechanism, a fan blade, and a ball bearing structure. It converts fluid kinetic energy into mechanical energy, disperses fluid energy, absorbs vibration, and uses high-damping materials and reinforcing ribs to reduce impact and improve stability and lifespan.
It effectively reduces the impact of fluid backflow on the valve disc, valve body and pipeline, and improves the safety, stability and service life of the system.
Smart Images
Figure CN223953451U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of valves, in particular to a check valve. BACKGROUND
[0002] The check valve, also known as a non-return valve or a one-way valve, is an automatic valve, and the function of the check valve is to allow fluid, usually liquid or gas, to flow freely in one direction, and to prevent fluid from flowing in the opposite direction, the main purpose is to prevent backflow of fluid, protect equipment from damage, or avoid pollution and other problems, compared with other types of valves, the check valve has unique functions and design characteristics, the check valve usually does not need external power source or manual intervention, but relies on the pressure change of the fluid itself to automatically open or close, so the application is also very wide.
[0003] In actual use, when the existing check valve encounters the situation that the liquid suddenly stops, such as the pump suddenly stops, the check valve will quickly close to prevent the liquid from flowing back, at this time, water hammer effect will be generated, so that the liquid has a strong impact on the check valve and the pipeline, accelerates the wear of the check valve, and even causes the check valve to break, affects the normal performance of the check valve, is difficult to guarantee the safe and stable operation of the pipeline system, reduces the stability of the system, and reduces the service life of the check valve.
[0004] The present application provides a check valve. Practical new type content
[0005] In view of the defects of the prior art, the present application provides a check valve, which overcomes the defects of the prior art, and aims to solve the problems that the existing check valve in actual use encounters the situation that the liquid suddenly stops, such as the pump suddenly stops, the check valve will quickly close to prevent the liquid from flowing back, at this time, water hammer effect will be generated, so that the liquid has a strong impact on the check valve and the pipeline, accelerates the wear of the check valve, and even causes the check valve to break, affects the normal performance of the check valve, is difficult to guarantee the safe and stable operation of the pipeline system, reduces the stability of the system, and reduces the service life of the check valve.
[0006] To achieve the above purpose, the present application provides the following technical scheme: a check valve, comprising a valve body, a water inlet pipeline and a water outlet pipeline are connected to the outer side of the valve body, a damping mechanism is arranged in the valve body, a valve flap is hinged in the valve body through the damping mechanism, the valve flap covers one end of the water inlet pipeline, a support is fixedly installed in the water inlet end of the water outlet pipeline in the valve body, two groups of fan leaves are rotatably connected to the two sides of the support, a fixed ring is installed in the valve body and the water outlet pipeline, and a plurality of groups of rolling balls are rollingly installed on the inner side of the fixed ring.
[0007] By adopting the technical scheme, when the fluid flows forward, the valve disc is impacted by the fluid in the water inlet pipeline to enter the valve body and flow out from the water outlet pipeline; when the fluid in the water outlet pipeline flows reversely, the valve disc closes the water inlet pipeline under the action of fluid pressure, wherein the fluid impacts a plurality of groups of vanes to make the vanes rotate under the action of the fluid, the kinetic energy of the fluid is converted into the mechanical energy of the rotation of the vanes, the fluid is effectively unloaded, and at the same time, the fluid is dispersed to be close to the fixed ring under the action of the vanes, a plurality of groups of balls are driven to rotate in the fixed ring, the fluid energy is further dispersed, the impact of the fluid flowing reversely on the valve disc, the valve body and the water outlet pipeline is reduced, the safety and stability during operation are favorable, and the service life of the device is prolonged.
[0008] As a preferred technical scheme of the present application, the damping mechanism comprises a groove, the groove is arranged on the top of the valve body, two groups of springs are arranged in the groove, one end of the spring is provided with a rubber column, one end of the two groups of rubber columns is fixedly provided with a connecting plate, two groups of adjusting rods are hingedly arranged at the bottom of the connecting plate, and the bottom of the two groups of adjusting rods is fixedly arranged with the valve disc.
[0009] By adopting the technical scheme, the valve disc is rotated by the impact of the fluid in the water inlet pipeline to allow the fluid to pass through, the connection between the valve disc and the valve body is absorbed by the spring and the rubber column to reduce the impact damage to the connection between the valve disc and the valve body, and the service life of the valve disc is prolonged.
[0010] As a preferred technical scheme of the present application, the inside of the fixed ring is provided with a plurality of groups of rolling grooves matched with a plurality of groups of balls, the balls are rollingly connected in the inside of the rolling grooves, and the opening size of the rolling grooves is smaller than the diameter of the balls.
[0011] By adopting the technical scheme, the balls are rollingly connected in the inside of the rolling grooves, and the opening size of the rolling grooves is smaller than the diameter of the balls, so that the position of the balls is effectively limited.
[0012] As a preferred technical scheme of the present application, the inside of the spring is provided with a telescopic rod.
[0013] By adopting the technical scheme, the stability of the valve disc after installation is improved by the telescopic rod, and the telescopic rod guides the elastic extension and contraction of the spring, so that the service life of the spring is effectively prolonged.
[0014] As a preferred technical scheme of the present application, the inner wall of the valve body is fixedly provided with a protection plate at the opening end of the groove, and the two groups of rubber columns are slidingly connected with the inside of the protection plate.
[0015] By adopting the technical scheme, the waterproof protection is performed on the components in the groove through the protection plate, and the rubber column is in sliding connection with the spring, so that the displacement of the rubber column is not affected.
[0016] As a preferred technical scheme of the present application, a damping pad is fixedly installed between the fixed ring and the water outlet pipeline.
[0017] By adopting the technical scheme, the damping pad is made of high-damping silica gel material, and when the fluid impacts the valve body and the water outlet pipeline, the damping pad effectively absorbs the impact force through elastic deformation, thereby improving the protection effect on the valve body and the water outlet pipeline.
[0018] As a preferred technical scheme of the present application, a plurality of groups of reinforcing ribs are fixedly installed inside the valve disc.
[0019] By adopting the technical scheme, the impact resistance of the valve disc is improved through the plurality of groups of reinforcing ribs, thereby prolonging the service life of the valve disc.
[0020] As a preferred technical scheme of the present application, the water outlet pipeline and the water inlet pipeline are both provided with a connecting flange at an end away from the valve body.
[0021] By adopting the technical scheme, the water inlet pipeline and the water outlet pipeline are connected with external pipelines through the connecting flange, thereby improving the practicability during use.
[0022] The present application has the following beneficial effects:
[0023] 1. When the fluid flows forward, the valve disc is impacted by the fluid in the water inlet pipeline to enter the valve body and then flows out from the water outlet pipeline. When the fluid in the water outlet pipeline flows reversely, the valve disc is closed to the water inlet pipeline under the action of fluid pressure. The fluid impacts a plurality of groups of vanes to make the vanes rotate under the action of the fluid, and the kinetic energy of the fluid is converted into the mechanical energy of the rotation of the vanes, thereby effectively unloading the fluid. Meanwhile, the fluid is dispersed to be close to the fixed ring under the action of the vanes, and a plurality of groups of balls are driven to rotate in the fixed ring, thereby further dispersing the fluid energy and reducing the impact of the fluid backflow on the valve disc, the valve body and the water outlet pipeline, thereby being beneficial to the safety and stability during operation and prolonging the service life of the device.
[0024] 2. The valve disc is rotated by the impact of the fluid in the water inlet pipeline to allow the fluid to pass through. The connection between the valve disc and the valve body absorbs the vibration through the spring and the rubber column, thereby reducing the impact damage to the connection between the valve disc and the valve body and being beneficial to prolonging the service life of the valve disc. BRIEF DESCRIPTION OF DRAWINGS
[0025] Figure 1 It is a schematic diagram of the overall structure of the present application;
[0026] Figure 2 It is a schematic diagram of the cross-sectional structure of the present application;
[0027] Figure 3 For Figure 2 enlarged structural schematic view at A;
[0028] Figure 4 For Figure 2 enlarged structural schematic view at B.
[0029] In the figure: 1, valve body; 2, water inlet pipeline; 3, water outlet pipeline; 4, damping mechanism; 401, groove; 402, spring; 403, rubber column; 404, connecting plate; 405, adjusting rod; 5, valve flap; 6, bracket; 7, fan blade; 8, fixed ring; 9, ball; 10, telescopic rod; 11, rolling groove; 12, guard plate; 13, damping pad; 14, reinforcing rib; 15, connecting flange. DETAILED DESCRIPTION
[0030] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.
[0031] With reference to Figures 1-3 , the check valve comprises a valve body 1, a water inlet pipeline 2 and a water outlet pipeline 3 are connected to the outer side of the valve body 1, a damping mechanism 4 is arranged in the interior of the valve body 1, a valve flap 5 is hingedly connected in the interior of the valve body 1 through the damping mechanism 4, the valve flap 5 covers one end of the water inlet pipeline 2, a bracket 6 is fixedly installed in the interior of the valve body 1 at the water inlet end of the water outlet pipeline 3, two groups of fan blades 7 are rotationally connected to the two sides of the bracket 6, a fixed ring 8 is installed in the interior of the valve body 1 and the water outlet pipeline 3, and a plurality of groups of balls 9 are rollingly installed on the inner side of the fixed ring 8; a plurality of groups of rolling grooves 11 matched with the plurality of groups of balls 9 are arranged in the interior of the fixed ring 8, the balls 9 are rollingly connected in the interior of the rolling grooves 11, and the opening size of the rolling grooves 11 is smaller than the diameter of the balls 9.
[0032] When the fluid flows forward, the valve disc 5 is impacted by the fluid in the water inlet pipeline 2 and enters the valve body 1, and when the fluid in the water outlet pipeline 3 flows reversely, the valve disc 5 is closed to the water inlet pipeline 2 under the action of fluid pressure, wherein the fluid impacts several groups of vanes 7, and the vanes 7 rotate under the action of the fluid, the fluid kinetic energy is converted into mechanical energy of the vane rotation, effectively unloading the fluid, at the same time, the fluid is dispersed by the vanes 7 to approach the fixed ring 8, and several groups of balls 9 are driven to rotate in the fixed ring 8, further dispersing the fluid energy, reducing the impact of the fluid backflow on the valve disc 5, the valve body 1 and the water outlet pipeline 3, and being beneficial to the safety and stability during operation, prolonging the service life of the device; the balls 9 are rolled in the rolling groove 11 to unload the fluid, and the opening size of the rolling groove 11 is smaller than the diameter of the balls 9, effectively limiting the position of the balls 9.
[0033] Referring to Figures 2-4 , the damping mechanism 4 includes a groove 401, the groove 401 is provided at the top of the valve body 1, two groups of springs 402 are installed in the groove 401, one end of the spring 402 is provided with a rubber column 403, one end of the two groups of rubber columns 403 is fixedly provided with a connecting plate 404, the bottom of the connecting plate 404 is hingedly provided with two groups of adjusting rods 405, and the bottom of the two groups of adjusting rods 405 is fixedly provided with the valve disc 5; the inside of the spring 402 is provided with the telescopic rod 10;
[0034] The valve disc 5 is impacted by the fluid in the water inlet pipeline 2 to rotate and allow the fluid to pass, the connection between the valve disc 5 and the valve body 1 absorbs the vibration through the spring 402 and the rubber column 403, reduces the impact damage to the connection between the valve disc 5 and the valve body 1, and is beneficial to prolonging the service life of the valve disc 5; the stability of the valve disc 5 after installation is improved through the telescopic rod 10, and the telescopic rod 10 guides the elastic expansion of the spring 402, effectively prolonging the service life of the spring 402.
[0035] Referring to Figures 2-4 , the inner wall of the valve body 1 is fixedly provided with a protective plate 12 at the opening end of the groove 401, and the two groups of rubber columns 403 are slidably connected in the protective plate 12; the inside of the valve disc 5 is fixedly provided with several groups of reinforcing ribs 14; the components in the groove 401 are waterproof protected through the protective plate 12, and the rubber column 403 is slidably connected with the spring 402 without affecting the displacement of the rubber column 403; the impact resistance of the valve disc 5 is improved through the several groups of reinforcing ribs 14, prolonging the service life of the valve disc 5.
[0036] Referring to Figures 1-3The damping pad 13 is fixed between the fixed ring 8 and the water outlet pipeline 3; the water outlet pipeline 3 and the water inlet pipeline 2 are both provided with a connecting flange 15 at the end away from the valve body 1; the damping pad 13 is made of high-damping silica gel material, and when the fluid impacts the valve body 1 and the water outlet pipeline 3, the damping pad 13 effectively absorbs the impact force through elastic deformation, thereby improving the protection effect on the valve body 1 and the water outlet pipeline 3; the connecting flange 15 facilitates the connection of the water inlet pipeline 2 and the water outlet pipeline 3 with external pipelines, thereby improving the practicability in use.
[0037] Working principle: when the fluid flows forward, the valve disc 5 is impacted by the fluid in the water inlet pipeline 2 and enters the valve body 1 to flow out from the water outlet pipeline 3; when the fluid in the water outlet pipeline 3 flows reversely, the valve disc 5 closes the water inlet pipeline 2 under the action of fluid pressure; wherein, the fluid impacts a plurality of groups of vanes 7, so that the vanes 7 rotate under the action of fluid, and the fluid kinetic energy is converted into mechanical energy of the vane rotation, thereby effectively unloading the fluid; at the same time, the fluid is dispersed close to the fixed ring 8 under the action of the vanes 7, thereby driving a plurality of groups of balls 9 to rotate in the fixed ring 8, further dispersing the fluid energy; the fluid in the water inlet pipeline 2 impacts the valve disc 5 to make the valve disc 5 rotate to allow the fluid to pass through; the connection between the valve disc 5 and the valve body 1 absorbs the vibration through the spring 402 and the rubber column 403.
[0038] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent replacements to some technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.
Claims
1. A check valve, comprising a valve body (1), characterized in that, The valve body (1) is connected to an inlet pipe (2) and an outlet pipe (3) on its outer side. A shock-absorbing mechanism (4) is provided inside the valve body (1). A valve disc (5) is hinged inside the valve body (1) through the shock-absorbing mechanism (4). The valve disc (5) covers one end of the inlet pipe (2). A bracket (6) is fixedly installed inside the valve body (1) at the inlet end of the outlet pipe (3). Two sets of fan blades (7) are rotatably connected to both sides of the bracket (6). A fixing ring (8) is installed inside the valve body (1) and the outlet pipe (3). Several sets of ball bearings (9) are rolled on the inner side of the fixing ring (8).
2. The check valve according to claim 1, characterized in that, The shock absorption mechanism (4) includes a groove (401) which is located on the top of the valve body (1). Two sets of springs (402) are installed inside the groove (401). A rubber column (403) is installed at one end of the spring (402). A connecting plate (404) is fixedly installed at one end of the two sets of rubber columns (403). Two sets of adjusting rods (405) are hinged to the bottom of the connecting plate (404). The bottom of the two sets of adjusting rods (405) is fixedly installed with the valve disc (5).
3. The check valve according to claim 1, characterized in that, The fixed ring (8) has several sets of rolling grooves (11) inside that match several sets of balls (9). The balls (9) are tumbling in the interior of the rolling grooves (11). The opening diameter of the rolling grooves (11) is smaller than the diameter of the balls (9).
4. The check valve according to claim 2, characterized in that, The spring (402) has a telescopic rod (10) inside.
5. The check valve according to claim 2, characterized in that, The inner wall of the valve body (1) is fixedly installed with a protective plate (12) at the opening end of the groove (401), and the two sets of rubber columns (403) are slidably connected to the inside of the protective plate (12).
6. The check valve according to claim 1, characterized in that, A shock-absorbing pad (13) is fixedly installed between the fixed ring (8) and the water outlet pipe (3).
7. The check valve according to claim 1, characterized in that, The valve disc (5) is internally fixed with several sets of reinforcing ribs (14).
8. The check valve according to claim 1, characterized in that, Both the outlet pipe (3) and the inlet pipe (2) are equipped with connecting flanges (15) at the ends away from the valve body (1).