Valve and manufacturing process thereof
By designing the rotating ring and crushing shaft structure, the problem of valve failure to seal caused by solid impurities remaining in the check valve is solved, and the effect of automatic closing and preventing backflow in the medium containing solid impurities is achieved.
Patent Information
- Application Number
- CN202510847006.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-24
- Publication Date
- 2025-09-23
AI Technical Summary
When the existing check valve controls a medium containing solid impurities, when the medium flow rate decreases or flows in the reverse direction, the solid impurities tend to remain in the valve disc reset position, causing the valve to be unable to fully reset and unable to seal and block backflow.
A valve structure was designed, including a rotating ring, a rotating disk and a crushing shaft. The rotating ring is driven by the rotating disk, and centrifugal force is used to prevent solid impurities from staying. A crushing knife is equipped to crush large impurities. Combined with a sealing mechanism, it can be automatically closed to ensure sealing.
It effectively avoids the accumulation of solid impurities on the upper end of the rotating ring, ensures that the valve can automatically close in the medium containing solid impurities, prevents backflow, and improves the sealing and applicability of the valve.
Smart Images
Figure CN120684553A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the field of valves, in particular to a valve and a manufacturing process thereof. Background Art
[0002] Valves are control components in fluid conveying systems, used to control the flow direction, pressure, and flow rate of liquids, gases, powders, and other fluids. They perform functions such as shutoff, regulation, diversion, backflow prevention, pressure stabilization, diversion, or overflow pressure relief. They are widely used in industries such as petroleum, chemical engineering, electric power, water supply and drainage, metallurgy, and pharmaceuticals. Among the valves that prevent backflow are check valves, also known as non-return valves, which automatically open and close based on the power of the medium's flow. Their operating mechanism is as follows: when the medium flows in the forward direction, pressure pushes the valve disc up or open, creating a flow channel. When the medium's flow rate decreases or reverses, the valve disc returns to its original position under the influence of its own weight, spring force, or reverse pressure from the medium, sealing the valve seat and preventing backflow.
[0003] However, when the existing check valve controls a medium containing solid impurities, the medium flow rate decreases or flows in the reverse direction, and the solid impurities therein are very likely to remain in the valve disc reset position, resulting in the valve disc being unable to fully reset, and then the check valve being unable to seal and block backflow, affecting its use. Summary of the Invention
[0004] The object of the present invention is to provide a valve which can greatly prevent the solid impurities from staying in the valve disc reset position when the medium contains solid impurities.
[0005] The purpose of the present invention is achieved through the following technical solutions:
[0006] A valve comprises a shell with a column cavity extending therethrough, a center ring being coaxially fixed at the center of the column cavity, a rotating ring being sealed and rotated inside the center ring, two external connecting pipes being fixed and connected to the shell, the two external connecting pipes being located at the upper and lower ends of the center ring, an upper cover plate and a lower cover plate being fixed to the upper and lower ends of the shell respectively, a sealing mechanism being elastically pressed against the upper end of the rotating ring between the upper cover plate and the rotating ring to form a partition inside the column cavity, a rotating disk being sealed and rotated at the center of the lower cover plate, and two connecting rods being symmetrically fixed between the rotating disk and the rotating ring.
[0007] A socket that fits into the upper end of the column cavity is fixed at the center of the upper cover plate, a center hole is provided in the center of the socket, a piston column is sealed and slides in the lower end of the center hole, a valve disc is fixed at the lower end of the piston column, a round seat is provided at the upper end of the center hole, an inserted column slides through the round seat, a spring is provided between the round seat and the piston column, so that the valve disc presses against the upper end of the rotating ring to complete the partition.
[0008] An ear plate is fixed on the upper end of the round seat, an adjusting screw is rotatably passed through the ear plate, and the adjusting screw is threadedly connected to the socket.
[0009] A shaped plate is fixed at the lower end of the lower cover plate, and a power motor for driving the rotating disk to rotate is installed on the shaped plate.
[0010] There are two crushing shafts that rotate through the rotating disk. The parts of the two crushing shafts located in the column cavity are fixed with multiple crushing knives. A gear ring is fixed on the shaped plate. The lower ends of the two crushing shafts are meshed with the gear ring for transmission.
[0011] The rotating ring comprises an inner ring which is sealed and rotated on the central ring, and an edge ring which is fixed on the lower end of the inner ring. The edge ring is fixedly connected to the upper ends of the two connecting rods.
[0012] A sealing ring is provided between the outer end of the edge ring and the inner wall of the column cavity.
[0013] The upper end of the inner ring is sealed externally with a limiting ring.
[0014] The upper end surface of the limiting ring is provided with a rubber ring.
[0015] A valve manufacturing process for processing a rotating ring of the valve, comprising:
[0016] S1. Use a lathe to process the inner ring, edge ring and limit ring into an integrated part;
[0017] S2. Sealing ring installation grooves are machined on the outer sides of the inner ring and the edge ring;
[0018] S3. A threaded hole is machined through the side of the limiting ring, and a ring groove is machined on the upper end face of the limiting ring. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 and Figure 2 It is a schematic diagram of the valve structure;
[0020] Figure 3 It is a schematic diagram of the cross-sectional structure of the valve;
[0021] Figure 4 It is a schematic cross-sectional view of the shell, external connecting pipe and center ring;
[0022] Figure 5 It is a structural diagram of the upper cover and the socket;
[0023] Figure 6 and Figure 7 It is a structural diagram of the blocking mechanism;
[0024] Figure 8 and Figure 9 It is a structural diagram of the lower cover plate, C-shaped plate and gear ring;
[0025] Figure 10 It is a structural diagram of the rotating ring and the rotating disk;
[0026] Figure 11 It is a schematic diagram of the cross-sectional structure of the rotating ring.
[0027] In the picture:
[0028] Shell 101; external connecting pipe 102; center ring 103;
[0029] Upper cover 201; socket 202;
[0030] Valve disc 301; piston column 302; plug column 303; spring 304; round seat 305; adjusting screw 306;
[0031] Lower cover plate 401; C-shaped plate 402; gear ring 403;
[0032] Rotating ring 501; inner ring 501a; edge ring 501b; limiting ring 501c; rotating disk 502; connecting rod 503; crushing shaft 504; crushing knife 505. DETAILED DESCRIPTION
[0033] like Figure 1-11 As shown, the valve is described in detail:
[0034] A valve comprises a shell 101 with a column cavity extending therethrough, a center ring 103 being coaxially fixed at the center of the column cavity, a rotating ring 501 being sealed and rotatable inside the center ring 103, two external connecting pipes 102 being fixed and connected to the shell 101, the two external connecting pipes 102 being located at the upper and lower ends of the center ring 103, an upper cover plate 201 and a lower cover plate 401 being fixed to the upper and lower ends of the shell 101 respectively, a sealing mechanism being provided between the upper cover plate 201 and the rotating ring 501 for elastically tightening the upper end of the rotating ring 501 to form a partition inside the column cavity, a rotating disk 502 being sealed and rotatable at the center of the lower cover plate 401, two connecting rods 503 being symmetrically fixed between the rotating disk 502 and the rotating ring 501.
[0035] The two external connecting pipes 102 are each provided with a flange at the end away from the housing 101, which is used to be fixedly connected to the medium pipeline, so that the medium can enter the housing 101 through the external connecting pipe 102 and then flow out through the other external connecting pipe 102; among them, the external connecting pipe 102 located at the bottom, that is, the external connecting pipe 102 in the opposite direction of the blocking mechanism, is the medium inlet end, and the external connecting pipe 102 located at the top, that is, the external connecting pipe 102 in the same direction as the blocking mechanism, is the medium outlet end. At the same time, the upper and lower ends of the housing 101 are also provided with flanges for sealing and fixing with the upper cover plate 201 and the lower cover plate 401 by bolts.
[0036] During use, the medium containing solid impurities enters the lower end of the column cavity through the outer connecting tube 102 at the lower end, and through its internal pressure, pushes the blocking mechanism away from the rotating ring 501, so that the upper and lower ends of the column cavity are connected, and then the medium flows into the upper end of the column cavity through the inner hole of the rotating ring 501, and then flows out through the upper outer connecting tube 102. When the flow rate of the medium containing solid impurities decreases or flows in the reverse direction, the blocking mechanism will elastically move back and press against the upper end of the rotating ring 501, thereby blocking the inner hole of the rotating ring 501 and realizing automatic closing of the valve, thereby preventing the medium in the upper outer connecting tube 102 from flowing back, thereby achieving the purpose of preventing backflow;
[0037] However, since the medium contains solid impurities, when the medium flow rate is reduced or reversed, the impurities in the medium may be retained at the edge of the upper end of the rotating ring 501. Then, when the blocking mechanism elastically moves back to press the upper end of the rotating ring 501, fixed impurities are sandwiched between the two, and a gap is formed between the two, which causes the valve to be unable to completely close, and thus unable to prevent the medium from flowing back, thereby losing the effect of preventing backflow. Therefore, a rotating disk 502 is provided. When the medium flow rate is about to decrease or reverse, the rotating disk 502 is driven to rotate. The rotating rotating disk 502 will drive the rotating ring 501 to rotate through the two connecting rods 503. The rotating rotating ring 501 will prevent the solid medium from staying on the upper end edge of the rotating ring 501. Even if it stops on the upper end edge of the rotating ring 501, it will rotate with the rotating ring 501, generating centrifugal force and wasting effort, thereby greatly preventing the solid impurities from staying on the upper end of the rotating ring 501 and preventing the blocking mechanism from being unable to press the upper end of the rotating ring 501.
[0038] Further:
[0039] A socket 202 that fits into the upper end of the column cavity is fixed at the center of the upper cover plate 201. A center hole is provided in the center of the socket 202. A piston column 302 is sealed and slides in the lower end of the center hole. A valve disc 301 is fixed to the lower end of the piston column 302. A round seat 305 is provided at the upper end of the center hole. A plug column 303 slides through the round seat 305. A spring 304 is provided between the round seat 305 and the piston column 302, so that the valve disc 301 is pressed against the upper end of the rotating ring 501 to complete the partition.
[0040] The outer ring of the socket 202 fits with the inner wall of the column cavity, and a sealing ring is provided between the two, thereby sealing the upper end of the column cavity. At the same time, the piston column 302 slides in the center hole with a sealing ring between the two, thus achieving a seal between the piston column 302 and the center hole. As a result, after the medium passes through the inner hole of the rotating ring 501 and enters the upper end of the column cavity, it can only flow out through the external connecting pipe 102 located above.
[0041] The elastic force of the spring 304 can push the valve disc 301 downward, so that after the lower end surface of the valve disc 301 loses the medium pressure, it quickly moves back and presses against the upper edge of the rotating ring 501, thereby realizing automatic closing of the valve and isolating the upper and lower ends of the column cavity.
[0042] Further:
[0043] An ear plate is fixed on the upper end of the round seat 305 , and an adjusting screw 306 is rotated through the ear plate. The adjusting screw 306 is threadedly connected to the socket 202 .
[0044] By rotating the adjusting screw 306, the adjusting screw 306 can be screwed into the socket 202 through a thread, thereby realizing axial movement of the adjusting screw 306, and then driving the round seat 305 to move up and down at the upper end of the center hole of the socket 202 through the ear plate, thereby changing the distance between the round seat 305 and the piston column 302, thereby adjusting the initial compression degree of the spring 304 between the round seat 305 and the piston column 302, thereby forming an adjustment control for the pressure of the medium to automatically open the valve, making it easier for the valve to adapt to automatic opening in different environments and improving the applicability of the valve.
[0045] Further:
[0046] A C-shaped plate 402 is fixed to the lower end of the lower cover plate 401 , and a power motor for driving the rotating disk 502 to rotate is installed on the C-shaped plate 402 .
[0047] The output shaft of the power motor is connected to the rotating disk 502 to drive the rotating disk 502, so that the rotating disk 502 can rotate, thereby driving the rotating ring 501 to rotate, thereby greatly preventing solid impurities from staying on the upper end of the rotating ring 501;
[0048] A sealing ring is provided between the rotating disk 502 and the lower cover plate 401 to achieve sealing.
[0049] Further:
[0050] There are two crushing shafts 504 rotating through the rotating disk 502. The parts of the two crushing shafts 504 located in the column cavity are fixed with multiple crushing knives 505. A gear ring 403 is fixed on the C-shaped plate 402. The lower ends of the two crushing shafts 504 are meshed with the gear ring 403 for transmission.
[0051] When the rotating disk 502 rotates, it can drive the two crushing shafts 504 to rotate eccentrically with the axis of the rotating disk 502 as the axis, and move relative to the gear ring 403 to form a meshing transmission, so that the two crushing shafts 504 can rotate eccentrically with the axis of the rotating disk 502 as the axis, and also rotate on their own axis as the axis, thereby driving the crushing knife 505 to rotate, thereby crushing the medium below the column cavity corresponding to the external connecting tube 102 located below, thereby crushing the solid impurities in the medium, and preventing the solid impurities from being too large or continuous and long, and unable to pass through the inner hole of the rotating ring 501, affecting the automatic closing and isolation of the valve.
[0052] Further, the rotating ring 501 is described in detail:
[0053] The rotating ring 501 includes an inner ring 501 a that rotates in a sealed manner on the center ring 103 , and an edge ring 501 b fixed to the lower end of the inner ring 501 a . The edge ring 501 b is fixedly connected to the upper ends of the two connecting rods 503 .
[0054] A sealing ring is provided between the outer end of the edge ring 501b and the inner wall of the column cavity.
[0055] The upper end of the inner ring 501a is sealed with a limiting ring 501c.
[0056] The upper end surface of the limiting ring 501c is provided with a rubber ring.
[0057] The inner ring 501a and the edge ring 501b are of an integrated structure. The outer ring of the edge ring 501b cooperates with the inner wall of the column cavity, and a sealing ring installation groove is machined on the outer ring surface of the edge ring 501b for installing the sealing ring, so that a seal is formed between the edge ring 501b and the inner wall of the column cavity. At the same time, a sealing ring installation groove is also machined on the outer surface of the inner ring 501a for installing the sealing ring, so that a seal is formed between the inner ring 501a and the center ring 103, thereby ensuring that the medium entering the column cavity from the outer connecting pipe 102 located below can only flow to the top of the column cavity through the inner hole of the inner ring 501a, that is, the inner hole of the rotating ring 501, thereby ensuring the overall sealing of the valve.
[0058] The limiting ring 501c is sleeved on the outside of the upper end of the inner ring 501a to achieve axial limitation of the inner ring 501a when installed on the center ring 103. When the limiting ring 501c and the inner ring 501a are installed, they are fixed and sealed by gluing. The limiting ring 501c is fixed to the inner ring 501a by screwing a tightening screw into the side of the limiting ring 501c to tighten the inner ring 501a.
[0059] After the limiting ring 501c is sleeved on the upper end of the inner ring 501a, the upper end surfaces of the two are in the same plane, thereby simultaneously pressing the valve disc 301, and by gluing a rubber ring on the upper end surface of the limiting ring 501c, a seal is achieved when pressing against the valve disc 301.
[0060] Furthermore, the valve manufacturing process is described in detail:
[0061] A valve manufacturing process for processing a rotating ring 501 of the valve, comprising:
[0062] S1. Use a lathe to process the inner ring 501a, the edge ring 501b, and the limit ring 501c into an integrated piece;
[0063] S2. Sealing ring installation grooves are machined on the outer sides of the inner ring 501a and the edge ring 501b;
[0064] S3. A threaded hole is machined through the side of the limiting ring 501c, and a ring groove is machined on the upper end surface of the limiting ring 501c;
[0065] During installation, first install the sealing ring in the sealing ring installation groove of the inner ring 501a and the edge ring 501b, and then send the inner ring 501a and the edge ring 501b into the column cavity from the lower end until the inner ring 501a and the sealing ring thereon are matched and installed in the center ring 103, and then apply glue to the inner ring and the ring groove of the limiting ring 501c, first glue the rubber ring in the ring groove, and put the limiting ring 501c on the upper end of the inner ring 501a from the upper end of the column cavity so that the two are glued and sealed, and at the same time, take the tightening screw and screw it into the threaded hole to tighten the inner ring 501a, and limit the two again, thereby completing the installation of the rotating ring 501 on the center ring 103, and forming an axial limit for the rotating ring 501 on the center ring 103 through the edge ring 501b and the limiting ring 501c.
Claims
1. A valve, characterized in that: The invention comprises a shell (101) having a column cavity extending therethrough, a center ring (103) being coaxially fixed at the center of the column cavity, a rotating ring (501) being sealed and rotated inside the center ring (103), two external connecting pipes (102) being fixed on and connected to the shell (101), the two external connecting pipes (102) being located at the upper and lower ends of the center ring (103), an upper cover plate (201) and a lower cover plate (401) being fixed at the upper and lower ends of the shell (101), a sealing mechanism being elastically pressed against the upper end of the rotating ring (501) being provided between the upper cover plate (201) and the rotating ring (501), so as to form a partition inside the column cavity, a rotating disk (502) being sealed and rotated at the center of the lower cover plate (401), and two connecting rods (503) being symmetrically fixed between the rotating disk (502) and the rotating ring (501).
2. A valve according to claim 1, characterized in that: A socket (202) that fits and is inserted into the upper end of the column cavity is fixed at the center of the upper cover plate (201), a center hole is provided at the center of the socket (202), a piston column (302) is sealed and slidably provided at the lower end of the center hole, a valve disc (301) is fixed at the lower end of the piston column (302), a round seat (305) is provided at the upper end of the center hole, an insert column (303) is slidably passed through the round seat (305), a spring (304) is provided between the round seat (305) and the piston column (302), so that the valve disc (301) is pressed against the upper end of the rotating ring (501) to complete the isolation.
3. A valve according to claim 2, characterized in that: An ear plate is fixed on the upper end of the round seat (305), and an adjusting screw (306) is rotated through the ear plate, and the adjusting screw (306) is threadedly connected to the socket (202).
4. A valve according to claim 1, characterized in that: A C-shaped plate (402) is fixed to the lower end of the lower cover plate (401), and a power motor for driving the rotating disk (502) to rotate is installed on the C-shaped plate (402).
5. A valve according to claim 4, characterized in that: Two crushing shafts (504) are rotated through the rotating disk (502), and a plurality of crushing knives (505) are fixed to the parts of the two crushing shafts (504) located in the column cavity. A gear ring (403) is fixed to the C-shaped plate (402), and the lower ends of the two crushing shafts (504) are meshed with the gear ring (403) for transmission.
6. A valve according to claim 1, characterized in that: The rotating ring (501) comprises an inner ring (501a) that rotates in a sealed manner on the center ring (103), and an edge ring (501b) fixed to the lower end of the inner ring (501a). The edge ring (501b) is fixedly connected to the upper ends of the two connecting rods (503).
7. A valve according to claim 6, characterized in that: A sealing ring is provided between the outer end of the edge ring (501b) and the inner wall of the column cavity.
8. A valve according to claim 6, characterized in that: The upper end of the inner ring (501a) is sealed externally and provided with a limiting ring (501c).
9. A valve according to claim 8, characterized in that: The upper end surface of the limiting ring (501c) is provided with a rubber ring.
10. A valve manufacturing process for processing a rotating ring (501) of a valve according to any one of claims 1 to 9, characterized in that: include S1. Using a lathe, the inner ring (501a) and the edge ring (501b) are machined into an integral piece, as well as a limit ring (501c); S2. Sealing ring installation grooves are machined on the outer side surfaces of the inner ring (501a) and the edge ring (501b); S3. A threaded hole is machined through the side surface of the limiting ring (501c), and a ring groove is machined on the upper end surface of the limiting ring (501c).