One-way valve body with self-protection function
By designing multiple protective layers such as barrier plates, limiting blocks and sliding rings in the one-way valve body, the problems of lax valve closure and equipment damage caused by excessive pressure during countercurrent are solved, and higher stability, safety and spring service life are achieved.
Patent Information
- Application Number
- CN202421390526.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-18
- Publication Date
- 2025-03-11
- Estimated Expiration
- 2034-06-18
AI Technical Summary
When the pressure of existing one-way valves is too high during counterflow, the valve is not closed tightly, resulting in liquid being easily reversed, and the spring supporting fluid pressure is insufficient, which easily leads to equipment damage.
A one-way valve body with self-protection function is designed, using the V-shaped design of the barrier plate to share the countercurrent pressure, the fitting design of the limiting block prevents slipping, the tight fit design of the sliding ring and the sealing ring prevents liquid from flowing back, and the fixed block restricts the right movement of the sliding ring, protects the spring to increase its service life.
Through the design of multiple protective layers, the stability and safety of the device are improved, countercurrent and equipment damage are prevented, the service life of the spring is extended, and the operating cost is reduced.
Smart Images
Figure CN222596869U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of one-way valves, in particular to a one-way valve body with a self-protection function. Background Art
[0002] A one-way valve is a valve that allows fluid to flow only along the inlet, but the medium in the hole cannot flow back. A one-way valve is also called a check valve or a non-return valve. It is used in hydraulic systems to prevent oil from flowing in the opposite direction, or in pneumatic systems to prevent compressed air from flowing in the opposite direction.
[0003] However, when the pressure difference in the pipeline system changes, the fluid will flow in a direction other than the expected direction, causing backflow. When backflow occurs and the backflow pressure exceeds the range that the valve body can withstand, the one-way valve body may be subjected to excessive pressure, resulting in difficulty in closing the valve, damage to the valve seat, or even rupture of the valve body. In this case, the one-way valve body needs a self-protection mechanism that can close the valve or reduce the pressure in time to protect the valve body from damage.
[0004] At present, a one-way valve is provided with a spring in the valve to help the valve close and provide the necessary reaction force under the fluid pressure to keep the valve sealed. However, when the reverse flow pressure exceeds the range that the valve body can withstand, the valve will not close tightly, making it easy for the liquid to flow back. Moreover, only using the spring to support the fluid pressure can easily cause damage to the equipment. Therefore, a one-way valve body with a self-protection function is proposed to solve the above problems. Utility Model Content
[0005] In order to make up for the above deficiencies, the utility model provides a one-way valve body with a self-protection function, aiming to improve the problem that the one-way valve in the prior art will set a spring in the valve to help the valve close and provide the necessary reaction force under the fluid pressure to keep the valve sealed, but the force of one layer is too small, which will cause the valve to be loosely closed, making it easy for the liquid to flow back.
[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a one-way valve body with self-protection function, comprising a shell, a valve core is fixedly connected to the inner side of the shell, a first fluid body is fixedly connected to the left side of the inner wall of the valve core, grooves are provided on the upper and lower sides of the inner wall at the bottom of the first fluid body, the inner sides of the two grooves are slidably connected with a convex block one, the adjacent sides of the two convex blocks one are fixedly connected with a sliding ring, the inner wall of the valve core is fixedly connected with a fixed block three, a groove body is provided on the right side of the fixed block three, the inner side of the groove body is slidably connected to the right side of the sliding ring, a plurality of holes are provided on the outer wall of the fixed block three, a sliding rod is fixedly connected to the right side of the sliding ring, the right end of the sliding rod passes through the middle of the fixed block three and is fixedly connected with a limiting block, the inner wall of the valve core is fixedly connected with a second fluid body, the right side of the limiting block is slidably connected to the left side of the second fluid body, a water outlet pipe is provided on the right side of the shell, a baffle is fixedly connected to the inner side of the water outlet pipe, and a filtering mechanism is provided on the left side of the inner wall of the shell, and the filtering mechanism is used to filter impurities in the liquid.
[0007] As a further description of the above technical solution:
[0008] The filtering mechanism includes a flow precursor, the outer wall of the flow precursor is fixedly connected to the left side of the inner wall of the shell, the inner wall of the flow precursor is provided with a sliding groove, the inner sides of the two sliding grooves are slidably connected with a protrusion 2, the adjacent sides of the two protrusions 2 are fixedly connected with a filter plate, the middle part of the filter plate is provided with a folding groove, and the sides away from the two protrusions 2 are provided with a button.
[0009] As a further description of the above technical solution:
[0010] The left side of the sliding ring is fixedly connected with a sealing ring, and the left side of the sealing ring is slidably connected to the left side of the groove.
[0011] As a further description of the above technical solution:
[0012] A water inlet pipe is arranged at the left end of the flow front body.
[0013] As a further description of the above technical solution:
[0014] An internal thread 1 is provided at the left end of the inner wall of the flow front body, and an external thread 1 is provided at the right side of the outer wall of the water inlet pipe. The inner side thread of the internal thread 1 is connected to the outer side of the external thread 1.
[0015] As a further description of the above technical solution:
[0016] The left end of the inner wall of the water outlet pipe is provided with a second internal thread, the inner wall of the shell is provided with a second external thread, and the inner side of the second internal thread is threadedly connected to the outer side of the second external thread.
[0017] As a further description of the above technical solution:
[0018] The upper and lower sides of the limiting block are fixedly connected with telescopic rods, the middle part of the limiting block is fixedly connected with a spring, the right side of the spring is fixedly connected with a fixed block one, the right side of the fixed block one is fixedly connected with a fixed block two, and the upper and lower ends of the fixed block two are fixedly connected to the inner wall of the shell.
[0019] As a further description of the above technical solution:
[0020] The outer wall of the spring is provided with a protective cover, and the outer wall of the protective cover is slidably connected to the inner side of the limiting block.
[0021] The utility model has the following beneficial effects:
[0022] 1. In the utility model, the V-shaped design of the baffle plate shares part of the pressure during backflow, which serves as the first layer of protection. The design of the limiting block being lower on the left and higher on the right and embedded in the second fluid body makes it more difficult for the limiting block to slide away during backflow, which serves as the second layer of protection. The sliding ring is tightly attached to the inside of the first fluid body under the action of the sealing ring to prevent the liquid from flowing back into the water inlet pipe, thus forming multiple protection layers, improving the stability and safety of the device, and limiting the rightward movement of the sliding ring through the fixed block, thereby preventing the limiting block from squeezing the spring more heavily, protecting the spring and increasing its service life.
[0023] 2. In the utility model, the folding groove provided in the middle of the filter plate allows the two buttons to be pressed to drive the second protrusion to slide downward in the sliding groove. At this time, the filter plate can be picked out with the help of tools. This simple operation design allows the operator to easily perform maintenance and cleaning work, thereby improving the usability and maintainability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] Figure 1 This is a cross-sectional view of a one-way valve body with self-protection function proposed by the utility model;
[0025] Figure 2 This is a structural schematic diagram of a one-way valve body with self-protection function proposed by the utility model;
[0026] Figure 3 The utility model is a structural schematic diagram of a filter mechanism with a one-way valve body having a self-protection function.
[0027] Legend:
[0028] 1. Shell; 2. Valve core; 3. First fluid body; 4. Groove; 5. Bump 1; 6. Sliding ring; 7. Fixed block 3; 8. Groove body; 9. Hole; 10. Sliding rod; 11. Limiting block; 12. Second fluid body; 13. Telescopic rod; 14. Spring; 15. Fixed block 1; 16. Fixed block 2; 17. Filter mechanism; 1701. Fluid precursor; 1702. Filter plate; 1703. Folding groove; 1704. Sliding groove; 1705. Button; 1706. Bump 2; 18. Sealing ring; 19. Water inlet pipe; 20. Internal thread 1; 21. External thread 1; 22. Water outlet pipe; 23. External thread 2; 24. Internal thread 2; 25. Blocking plate; 26. Protective cover. DETAILED DESCRIPTION
[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0030] Reference Figure 1 and Figure 2 , The utility model provides an embodiment: a one-way valve body with a self-protection function, including a shell 1, characterized in that: a valve core 2 is fixedly connected to the inner side of the shell 1, a first fluid body 3 is fixedly connected to the left side of the inner wall of the valve core 2, grooves 4 are provided on the upper and lower sides of the inner wall at the bottom of the first fluid body 3, the inner sides of the two grooves 4 are slidably connected with a protrusion 5, the adjacent sides of the two protrusions 5 are fixedly connected with a sliding ring 6, the inner wall of the valve core 2 is fixedly connected with a fixed block 3 7, a groove body 8 is provided on the right side of the fixed block 3 7, the inner side of the groove body 8 is slidably connected to the right side of the sliding ring 6, a plurality of holes 9 are provided on the outer wall of the fixed block 3 7, a sliding rod 10 is fixedly connected to the right side of the sliding ring 6, the right end of the sliding rod 10 passes through the middle of the fixed block 3 7 and is fixedly connected with a limiting block 11, The inner wall of the valve core 2 is fixedly connected with the second fluid body 12, the right side of the limiting block 11 is slidably connected to the left side of the second fluid body 12, the right side of the outer shell 1 is provided with a water outlet pipe 22, the inner side of the water outlet pipe 22 is fixedly connected with a baffle plate 25, and the left side of the inner wall of the outer shell 1 is provided with a filtering mechanism 17, and the filtering mechanism 17 is used to filter impurities in the liquid; the left side of the sliding ring 6 is fixedly connected with a sealing ring 18, and the left side of the sealing ring 18 is slidably connected to the left side of the groove 4; the upper and lower sides of the limiting block 11 are fixedly connected with the telescopic rod 13, the middle part of the limiting block 11 is fixedly connected with the spring 14, the right side of the spring 14 is fixedly connected with a fixed block 15, the right side of the fixed block 15 is fixedly connected with a fixed block 2 16, and the upper and lower ends of the fixed block 2 16 are fixedly connected to the inner wall of the outer shell 1.
[0031] Specifically, when the pressure of the counterflow from right to left is too large, the V-shaped design of the baffle plate 25 shares part of the pressure and thus provides the first layer of protection. The design of the limiting block 11 being lower on the left and higher on the right and embedded in the second fluid body 12 makes it difficult for the limiting block 11 to slide away under the counterflow, thereby providing the second layer of protection. The sliding ring 6 is tightly fitted inside the first fluid body 3 under the action of the sealing ring 18, thereby providing the third layer of protection. The rightward movement of the sliding ring 6 is limited by the fixed block three 7, thereby preventing the limiting block 11 from squeezing the spring 14 more heavily, thereby protecting the spring 14 to increase its service life, reduce costs, and protect the safety of the equipment.
[0032] Reference Figure 1 and Figure 3 The utility model provides an embodiment: the filtering mechanism 17 includes a flow precursor 1701, the outer wall of the flow precursor 1701 is fixedly connected to the left side of the inner wall of the shell 1, the inner wall of the flow precursor 1701 is provided with a sliding groove 1704, the inner sides of the two sliding grooves 1704 are slidably connected with a second protrusion 1706, the adjacent sides of the two second protrusions 1706 are fixedly connected with a filter plate 1702, the middle part of the filter plate 1702 is provided with a folding groove 1703, and the top of the second protrusion 1706 is provided with a button 1705; the left end of the flow precursor 1701 is provided with a water inlet pipe 19.
[0033] Specifically, the liquid is filtered before entering the valve body to intercept impurities and particles in the liquid. When it needs to be disassembled or replaced, the folding groove 1703 set in the middle of the filter plate 1702 allows pressing two buttons 1705 to drive the protrusion 1706 to slide downward in the sliding groove 1704. At this time, the filter plate is picked out with the help of tools. This simple operation design allows the operator to easily perform maintenance and cleaning work, thereby improving the usability and maintainability of the equipment.
[0034] Reference Figure 1 and Figure 2 The utility model provides an embodiment: an internal thread 20 is provided at the left end of the inner wall of the flow front body 1701, an external thread 21 is provided at the right side of the outer wall of the water inlet pipe 19, and the inner side thread of the internal thread 20 is connected to the outer side of the external thread 21; an internal thread 24 is provided at the left end of the inner wall of the water outlet pipe 22, an external thread 23 is provided on the inner wall of the outer shell 1, and the inner side thread of the internal thread 24 is connected to the outer side of the external thread 23; a protective cover 26 is provided on the outer wall of the spring 14, and the outer wall of the protective cover 26 is slidably connected to the inner side of the limiting block 11.
[0035] Specifically, the threaded connection between the water inlet pipe 19 and the housing 1, and between the housing 1 and the water outlet pipe facilitates maintenance and replacement.
[0036] Working principle: Liquid enters from the water inlet pipe 19 to generate pressure, so that the sliding ring 6 drives the protrusion 15 to slide in the groove 4 inside the first fluid body 3, and then slides to the groove body 8 of the fixed block 3 7 to stop sliding. The liquid passes through the hole 9, and the right side of the sliding ring 6 is connected to the sliding rod 10. The right side of the sliding rod 10 passes through the fixed block 3 7 to connect to the limiting block 11. The limiting block 11 is lower on the left and higher on the right. Through the elasticity of the telescopic rod 13 and the spring 14 and the fixing effect of the fixed block 15 and the fixed block 2 16, it will move in the second fluid body 12. When moving to the right, a gap is left on the second fluid body 12 to make The water flows through and finally flows to the outlet pipe 22. When the liquid flow stops, the sliding ring 6 will shrink into the first fluid body 3, and its sealing effect will be enhanced under the action of the sealing ring 18 to block the backflow of the remaining water flow. When the pressure of the countercurrent from right to left is too large, the V-shaped design of the baffle plate 25 provides the first layer of protection. The design of the limiting block 11, which is low on the left and high on the right and is embedded in the second fluid body 12, makes it difficult for the limiting block 11 to slide away under the countercurrent, thereby providing the second layer of protection. The sliding ring 6 is tightly fitted into the first fluid body 3 under the action of the sealing ring 18, providing the third layer of protection.
[0037] A filter plate 1702 is provided to filter the liquid before it enters the valve body to intercept impurities and particles in the liquid. When it needs to be disassembled or replaced, a folding groove 1703 provided in the middle of the filter plate 1702 allows pressing two buttons 1705 to drive the second protrusion 1706 to slide downward in the sliding groove 1704, and the filter plate can be picked out with the help of a tool.
[0038] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A one-way valve body with self-protection function, comprising a housing (1), characterized in that: The inner side of the housing (1) is fixedly connected to a valve core (2), the left side of the inner wall of the valve core (2) is fixedly connected to a first fluid body (3), the upper and lower sides of the bottom inner wall of the first fluid body (3) are provided with grooves (4), the inner sides of the two grooves (4) are slidably connected to a convex block (5), the adjacent sides of the two convex blocks (5) are fixedly connected to a sliding ring (6), the inner wall of the valve core (2) is fixedly connected to a fixed block (7), the right side of the fixed block (7) is provided with a groove body (8), the inner side of the groove body (8) is slidably connected to the right side of the sliding ring (6), and the outer wall of the fixed block (7) is provided with a plurality of The hole (9) is provided on the right side of the sliding ring (6), a sliding rod (10) is fixedly connected to the right side of the sliding ring (6), the right end of the sliding rod (10) passes through the middle of the fixed block three (7) and is fixedly connected to the limiting block (11), the inner wall of the valve core (2) is fixedly connected to the second fluid body (12), the right side of the limiting block (11) is slidably connected to the left side of the second fluid body (12), a water outlet pipe (22) is provided on the right side of the housing (1), a baffle plate (25) is fixedly connected to the inner side of the water outlet pipe (22), and a filtering mechanism (17) is provided on the left side of the inner wall of the housing (1), and the filtering mechanism (17) is used to filter impurities in the liquid.
2. A one-way valve body with self-protection function according to claim 1, characterized in that: The filtering mechanism (17) comprises a flow precursor (1701), the outer wall of the flow precursor (1701) is fixedly connected to the left side of the inner wall of the outer shell (1), the inner wall of the flow precursor (1701) is provided with a sliding groove (1704), the inner sides of the two sliding grooves (1704) are slidably connected with a second protrusion (1706), the adjacent sides of the two second protrusions (1706) are fixedly connected with a filter plate (1702), the middle part of the filter plate (1702) is provided with a folding groove (1703), and the two sides of the two second protrusions (1706) that are away from each other are provided with a button (1705).
3. A one-way valve body with self-protection function according to claim 1, characterized in that: The left side of the sliding ring (6) is fixedly connected with a sealing ring (18), and the left side of the sealing ring (18) is slidably connected to the left side of the groove (4).
4. A one-way valve body with self-protection function according to claim 2, characterized in that: A water inlet pipe (19) is provided at the left end of the flow front body (1701).
5. A one-way valve body with self-protection function according to claim 4, characterized in that: An internal thread (20) is provided at the left end of the inner wall of the flow front body (1701), and an external thread (21) is provided at the right end of the outer wall of the water inlet pipe (19), and the inner side of the internal thread (20) is threadedly connected to the outer side of the external thread (21).
6. A one-way valve body with self-protection function according to claim 1, characterized in that: The left end of the inner wall of the water outlet pipe (22) is provided with an internal thread (24), the inner wall of the outer shell (1) is provided with an external thread (23), and the inner side of the internal thread (24) is threadedly connected to the outer side of the external thread (23).
7. A one-way valve body with self-protection function according to claim 1, characterized in that: The upper and lower sides of the limiting block (11) are fixedly connected to a telescopic rod (13); the middle part of the limiting block (11) is fixedly connected to a spring (14); the right side of the spring (14) is fixedly connected to a fixing block 1 (15); the right side of the fixing block 1 (15) is fixedly connected to a fixing block 2 (16); the upper and lower ends of the fixing block 2 (16) are fixedly connected to the inner wall of the housing (1).
8. A one-way valve body with self-protection function according to claim 7, characterized in that: The outer wall of the spring (14) is provided with a protective cover (26), and the outer wall of the protective cover (26) is slidably connected to the inner side of the limiting block (11).