Tubular one-way valve
By adopting the sliding connection of large and small valve cores, floating springs and spherical valve head limit grooves in the check valve, the problem of easy damage to existing check valves in ultra-high pressure environments is solved, and higher prestress and service life are achieved.
Patent Information
- Application Number
- CN202510298293.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-13
- Publication Date
- 2025-04-25
AI Technical Summary
Existing check valves are prone to damage in ultra-high pressure environments, have short service life, and the valve core structure is under a large force, making it difficult to maintain stability under high pressure conditions.
A pipe-type one-way valve is designed, and its valve core adopts a sliding connection between a large valve core and a small valve core, providing buffering and recovery force through a floating spring, and a ball valve head and limit groove are provided in the valve core to achieve primary and secondary barriers and improve prestressing.
In ultra-high pressure environments, the sliding connection and floating spring of the valve core provide sufficient protection. The ball valve head and limit groove design improve prestress, extend the service life of the valve core, and ensure stability and reliability under high pressure conditions.
Smart Images
Figure CN119878869A_ABST
Abstract
Description
Technical Field
[0001] The invention is applied to the technical field of one-way valves, and particularly relates to a tubular one-way valve. Background Art
[0002] In the fields of food, pharmaceuticals, cosmetics, etc., the raw materials of the products need to be sterilized at high temperature and high pressure during the production process. In some fields, ultra-high pressure equipment is usually used to process the materials, such as HPP ultra-high pressure sterilization technology. HPP ultra-high pressure sterilization technology uses water or other liquid media as the medium to transmit pressure. The pressure added to the liquid is ~MPa. Through the medium, the pressure is used as the energy factor to pressurize the food placed in a specially sealed ultra-high pressure container at room temperature or low temperature (below ℃), and the pressure reaches hundreds of MPa, thereby achieving the purpose of sterilization. In this type of ultra-high pressure equipment, the one-way valve is an important component. The one-way valve can prevent the fluid from flowing back in the opposite direction and achieve the effect of one-way flow. The one-way valve on the market is mainly a fluid flow and pushes the valve core. After the valve core is pressed down, the fluid flows from the outer edge of the valve core into the valve body, and then flows out through the outlet on the valve body. This type of traditional valve core is because the fluid directly contacts the valve core head and flows out from the edge of the valve core, so that the spring or floating mechanism inside the valve core is subjected to greater force, which is easy to cause valve core damage in an ultra-high pressure environment, and the service life is greatly reduced. If a tubular one-way valve with a simple structure, which can block the protective spring twice under ultra-high pressure environment and whose arc-shaped valve core structure increases the prestress can be designed, the above problems can be solved. Summary of the invention
[0003] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a tubular one-way valve with a simple structure, which can secondary block a protective spring under ultra-high pressure environment and whose arc-shaped valve core structure increases prestress.
[0004] The technical solution adopted by the present invention is: the present invention includes a one-way valve body and a valve core assembly, the valve core assembly includes a valve core and a valve seat, the valve seat is connected to one end of the one-way valve body, a valve core installation port is provided in the middle of the one-way valve body, the valve core is arranged in the middle of the one-way valve body through the valve core installation port, a material outlet is provided at the other end of the one-way valve body, and the water stop end and the water outlet end of the valve core are respectively matched with the valve seat end and the material outlet.
[0005] Furthermore, the valve core includes a large valve core and a small valve core, the middle part of the small valve core is slidably matched with the sliding end of the main body of the large valve core, a floating spring is arranged between the large valve core and the small valve core, the large valve core is floatingly matched with the small valve core through the floating spring, a discharge channel is arranged in the middle part of the large valve core, the material outlet is connected and communicated with the discharge channel, and a plurality of feed holes are arranged at the water stop end of the large valve core, and a plurality of the feed holes are connected and communicated with the discharge channel.
[0006] Furthermore, a water outlet protrusion is provided at the water outlet end of the valve seat, a limiting groove is provided on the inner side of the end of the water outlet protrusion, the limiting groove is connected to the material inlet in the middle of the valve seat, and a spherical valve head is provided at the water stop end of the large valve core, the limiting groove cooperates with the outer arc surface of the spherical valve head, and the fluid is connected and conducted with several of the feed holes through the gap between the spherical valve head and the limiting groove.
[0007] Furthermore, the outer edge of the water outlet protrusion is set to a circular arc spherical structure, and the circular arc spherical structure outside the water outlet protrusion is limitedly matched with the outer edge of the end of the valve core installation port.
[0008] Furthermore, a limit ring is provided on the middle outer edge of the large valve core, the limit ring is limitedly matched with the inner wall of the valve core installation port, and the outer edge of the end of the small valve core is limitedly matched with the inner wall of the valve core installation port.
[0009] Furthermore, an input connection port is arranged at one end of the valve seat away from the valve core, and a feed guide groove is arranged at one end of the material inlet close to the input connection port.
[0010] Furthermore, a valve seat installation groove is provided at one end of the one-way valve body, and the valve seat body part is limitedly matched with the valve seat installation groove.
[0011] Furthermore, an output connection port is provided at one end of the one-way valve body away from the valve seat, and a discharge guide groove is provided at one end of the material outlet close to the output connection port.
[0012] Furthermore, a chamfer is provided on the outer edge of one end of the valve core installation opening close to the water outlet protrusion.
[0013] The beneficial effects of the present invention are as follows: the one-way valve is arranged as a tubular structure, and the components are combined and connected with each other, which makes maintenance and replacement more convenient. The valve core is provided with a large valve core and a small valve core. The large valve core can slide relatively in the valve core installation port through a sliding connection relationship, and the floating spring provides buffering and restoring force at the same time. When the ultra-high pressure fluid flows into the material inlet at a high speed, the fluid pushes the spherical valve head to achieve the initial blocking. The large valve core is pressed downward to make the fluid flow into the valve core installation port from between the spherical valve head and the conical groove, and the secondary blocking is performed by collision through the limiting protrusion. The fluid flows into the interior of the valve core through several of the feed holes, and then flows out through the discharge channel. The structure is simple, and the spherical valve head is designed as an arc structure to increase the prestress and avoid damage to the structure. It is conducive to long-term use in an ultra-high pressure environment and has higher stability. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 is a stereoscopic view of the present invention; Figure 2 is a cross-sectional view of the present invention; Figure 3 is an exploded view of the present invention; Figure 4 is an exploded view of the valve core; Figure 5 is a three-dimensional view of the valve body; Figure 6 is a stereoscopic view of the valve body from another perspective; Figure 7 is a three-dimensional view of the valve seat; Figure 8 It is a stereoscopic view of the valve seat from another perspective. DETAILED DESCRIPTION
[0015] like Figures 1 to 8 As shown, in this embodiment, the present invention includes a one-way valve body 1 and a valve core assembly 2, the valve core assembly 2 includes a valve core 3 and a valve seat 4, the valve seat 4 is connected to one end of the one-way valve body 1, a valve core installation port 5 is provided in the middle of the one-way valve body 1, the valve core 3 is arranged in the middle of the one-way valve body 1 through the valve core installation port 5, and a material outlet 6 is provided at the other end of the one-way valve body 1, and the water stop end and the water outlet end of the valve core 3 are respectively matched with the end of the valve seat 4 and the material outlet 6. The valve core 3 includes a large valve core 31 and a small valve core 32. The middle of the small valve core 32 is slidably matched with the sliding end of the main body of the large valve core 31. A floating spring 33 is provided between the large valve core 31 and the small valve core 32. The large valve core 31 is floatingly matched with the small valve core 32 through the floating spring 33. A discharge channel 34 is provided in the middle of the large valve core 31. The material outlet 6 is connected and communicated with the discharge channel 34. A plurality of feed holes 35 are provided at the water stop end of the large valve core 31. The plurality of feed holes 35 are connected and communicated with the discharge channel 34. It can be seen that the valve core 3 is provided with the large valve core 31 and the small valve core 32. Through the mutual sliding connection relationship, the large valve core 31 can stably slide in the valve core installation port 5, and the floating spring 33 provides buffering and restoring forces, so that the material fluid cannot flow in reverse. The structure is simple and the performance is stable.
[0016] like Figure 2 and Figure 8As shown, in this embodiment, the water outlet end of the valve seat 4 is provided with a water outlet protrusion 8, and the inner side of the end of the water outlet protrusion 8 is provided with a limiting groove 9, and the limiting groove 9 is connected to the material inlet 7 in the middle of the valve seat 4. The end of the water stop end of the large valve core 31 is provided with a spherical valve head 36, and the limiting groove 9 matches the outer arc surface of the spherical valve head 36. The fluid is connected and communicated with the plurality of feed holes 35 through the gap between the spherical valve head 36 and the limiting groove 9. It can be seen that the limiting groove 9 matches the outer arc surface of the spherical valve head 36, and can effectively prevent reverse flow when the water pressure is small, achieving the effect of unidirectional flow.
[0017] like Figure 8 As shown, in this embodiment, the outer edge of the water outlet protrusion 8 is set to a circular arc spherical structure, and the circular arc spherical structure outside the water outlet protrusion 8 is limitedly matched with the outer edge of the end of the valve core installation port 5. It can be seen that the design of the spherical valve head 36 as a circular arc structure can increase the prestress, avoid structural damage, and is conducive to long-term use in an ultra-high pressure environment, and has higher stability.
[0018] like Figure 2 and Figure 4 As shown, in this embodiment, a limit ring 10 is provided at the outer edge of the middle part of the large valve core 31, and the limit ring 10 is limitedly matched with the inner wall of the valve core installation port 5, and the outer edge of the end of the small valve core 32 is limitedly matched with the inner wall of the valve core installation port 5. It can be seen that the limit ring 10 can prevent the fluid entering the valve core installation port 5 from entering between the large valve core 31 and the valve core 32, resulting in a reduction in the service life of the floating spring 33.
[0019] like Figure 2 and Figure 7 As shown, in this embodiment, the valve seat 4 is provided with an input connection port 11 at one end away from the valve core 3, and the material inlet 7 is provided with a feed guide groove 12 at one end close to the input connection port 11. It can be seen that the input connection port 11 is connected to the high-pressure discharge port of the ultra-high pressure equipment, and the fluid flow rate is made more concentrated and more stable through the feed guide groove.
[0020] like Figure 2 and Figure 5 As shown, in this embodiment, a valve seat installation groove 13 is provided at one end of the one-way valve body 1, and the main body of the valve seat 4 is limitedly matched with the valve seat installation groove 13. It can be seen that the valve seat installation groove 13 can stably fix the valve seat 4 on the one-way valve body 1.
[0021] like Figure 6As shown, in this embodiment, the one-way valve body 1 is provided with an output connection port 14 at one end away from the valve seat 4, and the material outlet 6 is provided with a discharge guide groove 15 at one end close to the output connection port 14. It can be seen that the output connection port 14 is connected to the discharge port of the ultra-high pressure equipment, and the discharge guide groove 15 prevents the valve body from being damaged due to excessive discharge flow rate.
[0022] like Figure 2 and Figure 8 As shown, in this embodiment, the outer edge of the valve core installation port 5 close to the water outlet protrusion 8 is chamfered. It can be seen that the chamfered structure of the end of the valve core installation port 5 that matches the water outlet protrusion 8 can increase the contact area with the arc structure of the outer edge of the water stop block, so that the sealing effect is better.
[0023] The working principle of the present invention is as follows: before starting the equipment, the tubular one-way valve is connected to the high-pressure input end and the output end of the ultra-high pressure equipment through the input connection port 11 and the output connection port 14 respectively, and the ultra-high pressure equipment is started. The ultra-high pressure material fluid flows in through the material inlet 7 and contacts with the spherical valve head 36, and the spherical valve head 36 realizes preliminary blocking. Under the continued downward pressure of the ultra-high pressure fluid, the spherical valve head 36 drives the large valve core 31 to continue to press downward, and the fluid flows into the valve core installation port 5 from between the spherical valve head 36 and the limiting groove 9, and is blocked for the second time by the limiting ring 10, and then flows into the interior of the large valve core 31 through a number of the feed holes 35. The material fluid flowing into the interior of the large valve core 31 flows out from the ultra-high pressure output end through the discharge channel 34 and the material outlet 6, thereby realizing the one-way flow of the ultra-high pressure material fluid.
[0024] Although the embodiments of the present invention are described with practical solutions, they do not constitute limitations on the meaning of the present invention. For those skilled in the art, it is obvious to modify the implementation scheme and combine it with other solutions based on this description.
Claims
1. A tubular one-way valve, comprising a one-way valve body (1) and a valve core assembly (2), characterized in that: The valve core assembly (2) comprises a valve core (3) and a valve seat (4); the valve seat (4) is connected to one end of the one-way valve body (1); a valve core installation port (5) is provided in the middle of the one-way valve body (1); the valve core (3) is arranged in the middle of the one-way valve body (1) through the valve core installation port (5); a material outlet (6) is provided at the other end of the one-way valve body (1); a water stop end and a water outlet end of the valve core (3) are matched with the end of the valve seat (4) and the material outlet (6) respectively.
2. A tubular one-way valve according to claim 1, characterized in that: The valve core (3) comprises a large valve core (31) and a small valve core (32); the middle portion of the small valve core (32) is slidably matched with the sliding end of the main body portion of the large valve core (31); a floating spring (33) is provided between the large valve core (31) and the small valve core (32); the large valve core (31) is floatably matched with the small valve core (32) via the floating spring (33); a discharge channel (34) is provided in the middle portion of the large valve core (31); the material outlet (6) is connected to the discharge channel (34); a plurality of feed holes (35) are provided at the water stop end of the large valve core (31); and the plurality of feed holes (35) are connected to the discharge channel (34).
3. A tubular one-way valve according to claim 2, characterized in that: The water outlet end of the valve seat (4) is provided with a water outlet protrusion (8), and a limiting groove (9) is provided inside the end of the water outlet protrusion (8). The limiting groove (9) is connected to the material inlet (7) in the middle of the valve seat (4). The water stop end of the large valve core (31) is provided with a spherical valve head (36). The limiting groove (9) matches the outer arc surface of the spherical valve head (36). The fluid is connected and conducted with the plurality of the feed holes (35) through the gap between the spherical valve head (36) and the limiting groove (9).
4. A tubular one-way valve according to claim 3, characterized in that: The outer edge of the water outlet protrusion (8) is arranged as an arc spherical structure, and the arc spherical structure outside the water outlet protrusion (8) is limitedly matched with the outer edge of the end of the valve core installation opening (5).
5. A tubular one-way valve according to claim 2, characterized in that: A limit ring (10) is provided on the middle outer edge of the large valve core (31), and the limit ring (10) is in limit cooperation with the inner wall of the valve core installation opening (5), and the outer edge of the end of the small valve core (32) is in limit cooperation with the inner wall of the valve core installation opening (5).
6. A tubular one-way valve according to claim 3, characterized in that: An input connection port (11) is provided at one end of the valve seat (4) away from the valve core (3), and a feed guide groove (12) is provided at one end of the material inlet (7) close to the input connection port (11).
7. A tubular one-way valve according to claim 1, characterized in that: A valve seat installation groove (13) is provided at one end of the one-way valve body (1), and a main body portion of the valve seat (4) is limitedly matched with the valve seat installation groove (13).
8. The tubular one-way valve according to claim 1, characterized in that: An output connection port (14) is provided at one end of the one-way valve body (1) away from the valve seat (4), and an output guide groove (15) is provided at one end of the material outlet (6) close to the output connection port (14).
9. A tubular one-way valve according to claim 3, characterized in that: The outer edge of one end of the valve core installation opening (5) close to the water outlet protrusion (8) is provided with a chamfer.