High-precision valve casting
By introducing rubber strips, motor-driven gear transmission systems and sealing ring structures into valve castings, the problems of reduced opening and closing precision and leakage caused by fluid wear are solved, and a high-precision sealing effect is achieved.
Patent Information
- Application Number
- CN202422303527.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-21
- Publication Date
- 2025-09-19
- Estimated Expiration
- 2034-09-21
AI Technical Summary
When a fluid with a large flow rate and a fast flow rate passes through the opening and closing parts of the valve, it may cause wear on the edge surface of the opening and closing parts, resulting in a decrease in the surface accuracy of the opening and closing parts, and leakage will occur when the fluid passes through the opening and closing parts when closed.
A high-precision valve casting is designed, which realizes the precise sealing of the opening and closing parts by setting rubber strips, motor-driven gear transmission system and sealing ring structure.
It improves the closing accuracy and sealing effect of the valve, reduces fluid leakage and extends the service life of the valve.
Smart Images
Figure CN223359917U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of valve castings, in particular to a high-precision valve casting. Background Art
[0002] Castings are metal shaped objects obtained by various casting methods. That is, smelted liquid metal is poured into a pre-prepared mold by casting, and then polished after cooling to obtain an object with a specific shape. Among them, valves are the most common casting products.
[0003] When valve castings are in use, large flow and fast flow fluid passing through the opening and closing parts of the valve may cause wear on the edge surface of the opening and closing parts, resulting in a decrease in the surface accuracy of the opening and closing parts, and leakage problems may occur at the opening and closing parts when the fluid passes through the closed part. Utility Model Content
[0004] The purpose of this utility model is to solve the problem that when a fluid with a large flow rate and a fast flow rate passes through the opening and closing parts of the valve, the surface of the opening and closing parts may be worn, resulting in a decrease in the surface accuracy of the opening and closing parts, and leakage may occur at the opening and closing parts when the fluid passes through the closed part. A high-precision valve casting is proposed.
[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a high-precision valve casting, comprising a shell, both ends of the shell are fixedly connected to end pipes, the inner wall of the shell is rotatably connected to a control rod, the outer surface of the control rod is fixedly connected to an adjustment plate, one side of the control rod is fixedly connected to a control block, the outer surface of the control rod is provided with a filling device, the filling device comprises a groove block, one side of the groove block is fixedly connected to one side of the control rod, the outer surface of the groove block is provided with a motor, the output end of the motor is fixedly connected to a shaft rod, the outer surface of the shaft rod rotates on the inner wall of the groove block, the top end of the shaft rod is fixedly connected to a first gear, the inner wall of the control rod is slidably connected to a piston block, the top end of the piston block is fixedly connected to a screw, the top end of the control rod is rotatably connected to a second gear, the inner wall of the second gear is threadedly connected to the outer surface of the screw, the first gear is meshed with the outer surface of the second gear, an air channel is opened inside the adjustment plate, rubber strips are fixedly connected on both sides of the adjustment plate, and grooves are opened on both sides of the inner wall of the shell.
[0006] The effect achieved by the above components is: by arranging the rubber strips, when the valve is used, after the adjustment plate is rotated by the control rod to seal the inside of the shell, the motor can be operated to drive the shaft and the first gear to rotate, and the second gear is driven to rotate by the first gear, so that the screw moves downward on the inner wall of the second gear, driving the piston block to slide downward on the inner wall of the control rod, and the air inside the control rod is pumped into the rubber strips on both sides of the adjustment plate through the airway through the piston block, so that the two rubber strips expand and get stuck in the grooves on both sides of the inner wall of the shell, further sealing the contact between the adjustment plate and the inner wall of the shell, thereby improving the sealing accuracy and sealing effect of the adjustment plate to the inside of the shell.
[0007] Preferably, convex strips are fixedly connected to the edges of both sides of the inner wall of the groove, and the convex strips are made of rubber material.
[0008] The effect achieved by the above components is that by providing the convex strips made of rubber material, the contact point between the rubber strip and the inner wall of the groove when the rubber strip is inserted into the groove can be further sealed, thereby improving the sealing effect of the rubber strip.
[0009] Preferably, a positioning groove is provided at the bottom end of the second gear, a positioning rod is fixedly connected to one side of the groove block, and the top end of the positioning rod slides on the inner wall of the positioning groove.
[0010] The effect achieved by the above components is: when the motor drives the first gear to rotate the second gear, the top end of the positioning rod will slide on the inner wall of the positioning groove, further limiting the angle between the second gear and the control rod, and increasing the stability of the second gear during rotation.
[0011] Preferably, a positioning block is fixedly connected to one side of the positioning rod, and the end of the shaft away from the motor rotates on the inner wall of the positioning block.
[0012] The effect achieved by the above components is: when the shaft is driven to rotate by the motor, the end of the shaft away from the motor will rotate on the inner wall of the positioning block. The positioning block can further limit the angles of the two ends of the shaft, thereby avoiding the angle of the shaft away from the motor from being deflected as much as possible.
[0013] Preferably, a sealing device is provided inside the end tube, and the sealing device includes a groove ring, the outer surface of the groove ring is fixedly connected to the inner wall of the end tube, a slot is provided on one side of the groove ring, a circular ring is slidably inserted into the inner wall of the slot, and a rubber sealing ring is fixedly connected to one side of the circular ring.
[0014] The effect achieved by the above components is: by setting a sealing ring, when using a valve to connect the end pipe to the fluid delivery pipe, the circular ring can be inserted into the slot inside the groove ring at the inner wall of the end pipe, so that the circular ring is completely inside the slot, and the sealing ring is fixed inside the end pipe. Then the fluid delivery pipe and the end pipe are connected through a flange. The sealing ring will be on the inner side of the connection between the fluid delivery pipe and the end pipe, further sealing the connection between the fluid delivery pipe and the end pipe.
[0015] Preferably, auxiliary plates are fixedly connected to both sides of the inner wall of the sealing ring, and the auxiliary plates are made of stainless steel.
[0016] The effect achieved by the above components is that when the sealing ring needs to be removed for replacement after installation, you can use your hands to press against the auxiliary pieces on both sides of the inner wall of the sealing ring to pull the sealing ring out of the slot more conveniently.
[0017] Preferably, a plurality of rubber anti-slip strips are fixedly connected to the outer surface of the ring, and the anti-slip strips are linearly distributed on the outer surface of the ring.
[0018] The effect achieved by the above components is that the rubber anti-slip strip can increase the friction between the ring and the inner wall of the slot when the ring is inserted into the slot, making it difficult for the ring to accidentally fall off from the slot.
[0019] Preferably, a plurality of reinforcing rods are fixedly connected to one side of the groove ring, and the reinforcing rods are circumferentially distributed on one side of the inner wall of the groove ring.
[0020] The effect achieved by the above components is that after the ring is inserted into the slot, the inner side of the rubber sealing ring can be supported by the reinforcing rod, thereby preventing the sealing ring from bending inward and deforming as much as possible.
[0021] Compared with the prior art, the advantages and positive effects of the present invention are:
[0022] In the utility model, by providing a filling device, when the adjustment plate is closed, the air inside the control rod is pumped into the rubber strips on both sides of the adjustment plate through the air channel by the piston block, so that the two rubber strips expand and get stuck in the grooves on both sides of the inner wall of the shell, thereby further sealing the contact between the adjustment plate and the inner wall of the shell, thereby improving the sealing accuracy and sealing effect of the adjustment plate to the interior of the shell. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;
[0024] Figure 2 This is a schematic diagram of the three-dimensional structure of the housing of the utility model;
[0025] Figure 3 It is a schematic diagram of a partial cross-section of the three-dimensional structure of the housing of the utility model;
[0026] Figure 4 For this utility model Figure 3 A schematic diagram of a partially enlarged three-dimensional structure;
[0027] Figure 5 It is a schematic diagram of the partial cross-section of the three-dimensional structure of the end pipe of the utility model;
[0028] Figure 6 It is a schematic diagram of the three-dimensional structure of the sealing ring of the utility model.
[0029] Legend: 1. Shell; 2. Filling device; 3. Sealing device; 4. End pipe; 5. Control rod; 6. Adjustment plate; 7. Control block; 21. Slot block; 22. Motor; 23. Shaft; 24. First gear; 25. Second gear; 26. Screw; 27. Piston block; 28. Air duct; 29. Rubber strip; 210. Groove; 211. Raised strip; 212. Positioning groove; 213. Positioning rod; 214. Positioning block; 31. Groove ring; 32. Slot; 33. Ring; 34. Sealing ring; 35. Auxiliary plate; 36. Anti-slip strip; 37. Reinforcement rod. DETAILED DESCRIPTION
[0030] Example 1, as Figure 1-4As shown, a high-precision valve casting includes a shell 1, both ends of the shell 1 are fixedly connected to end tubes 4, the inner wall of the shell 1 is rotatably connected to a control rod 5, the outer surface of the control rod 5 is fixedly connected to an adjusting plate 6, one side of the control rod 5 is fixedly connected to a control block 7, the outer surface of the control rod 5 is provided with a filling device 2, the filling device 2 includes a slot block 21, one side of the slot block 21 is fixedly connected to one side of the control rod 5, the outer surface of the slot block 21 is provided with a motor 22, the output end of the motor 22 is fixedly connected to a shaft rod 23, the outer surface of the shaft rod 23 rotates on the inner wall of the slot block 21, the top end of the shaft rod 23 is fixedly connected to a first gear 24, the inner wall of the control rod 5 is slidably connected to a piston block 27, the top end of the piston block 27 is fixedly connected to a screw rod 26, the top end of the control rod 5 is rotatably connected to a second gear 25, the inner wall of the second gear 25 is threadedly connected to the outer surface of the screw rod 26, the first gear 24 is connected to the second gear 25 The outer surfaces of the gears 25 are meshed, an air passage 28 is provided inside the adjusting plate 6, and rubber strips 29 are fixedly connected on both sides of the adjusting plate 6. Grooves 210 are provided on both sides of the inner wall of the shell 1. By providing the rubber strips 29, when the valve is used, after the adjusting plate 6 is rotated by the control rod 5 to seal the inside of the shell 1, the motor 22 can be operated to drive the shaft 23 and the first gear 24 to rotate, and the second gear 25 is driven to rotate by the first gear 24, so that the screw 26 moves downward on the inner wall of the second gear 25, driving the piston block 27 to slide downward on the inner wall of the control rod 5. The air inside the control rod 5 is driven into the rubber strips 29 on both sides of the adjusting plate 6 through the air passage 28 through the piston block 27, so that the two rubber strips 29 expand and get stuck in the grooves 210 on both sides of the inner wall of the shell 1, further sealing the contact between the adjusting plate 6 and the inner wall of the shell 1, thereby improving the sealing accuracy and sealing effect of the adjusting plate 6 to the inside of the shell 1.
[0031] Reference Figure 2-4 As shown, in this embodiment: ridges 211 are fixedly connected to the edges of both sides of the inner wall of the groove 210, and the ridges 211 are made of rubber material. By providing the ridges 211 made of rubber material, the contact between the rubber strip 29 and the inner wall of the groove 210 when the rubber strip 29 is inserted into the groove 210 can be further sealed, thereby improving the sealing effect of the rubber strip 29. A positioning groove 212 is provided at the bottom end of the second gear 25, and a positioning rod 213 is fixedly connected to one side of the groove block 21. The top end of the positioning rod 213 slides on the inner wall of the positioning groove 212. When the first gear 24 is driven by the motor 22 to rotate the second gear 25, the top end of the positioning rod 213 will slide on the inner wall of the positioning groove 212, further limiting the angle between the second gear 25 and the control rod 5, thereby increasing the stability of the second gear 25 during rotation.
[0032] Reference Figure 2-4As shown, in this embodiment: a positioning block 214 is fixedly connected to one side of the positioning rod 213, and the end of the shaft rod 23 away from the motor 22 rotates on the inner wall of the positioning block 214. When the motor 22 drives the shaft rod 23 to rotate, the end of the shaft rod 23 away from the motor 22 will rotate on the inner wall of the positioning block 214. The positioning block 214 can further limit the angles of the two ends of the shaft rod 23, and avoid the angle of the shaft rod 23 away from the motor 22 from being deflected as much as possible.
[0033] Reference Figure 1 、 Figure 5 and Figure 6 As shown, in this embodiment: a sealing device 3 is provided inside the end pipe 4, and the sealing device 3 includes a groove ring 31, the outer surface of the groove ring 31 is fixedly connected to the inner wall of the end pipe 4, a slot 32 is provided on one side of the groove ring 31, and a circular ring 33 is slidably inserted into the inner wall of the slot 32, and a rubber sealing ring 34 is fixedly connected to one side of the circular ring 33. By providing the sealing ring 34, when the end pipe 4 is connected to the fluid conveying pipeline using a valve, the circular ring 33 can be inserted into the slot 32 inside the groove ring 31 at the inner wall of the end pipe 4, so that the circular ring 33 is completely inside the slot 32, and the sealing ring 34 is fixed inside the end pipe 4, and then the fluid conveying pipeline and the end pipe 4 are connected through a flange. The sealing ring 34 will be on the inner side of the connection between the fluid conveying pipeline and the end pipe 4, further sealing the connection between the fluid conveying pipeline and the end pipe 4.
[0034] Reference Figure 1 、 Figure 5 and Figure 6 When the sealing ring 34 is installed and needs to be replaced, the sealing ring 33 can be pulled out of the slot 32 more conveniently by pressing the auxiliary pieces 35 on both sides of the inner wall of the sealing ring 34 with your hands. The outer surface of the ring 33 is fixedly connected with a plurality of rubber anti-slip strips 36, and the anti-slip strips 36 are linearly distributed on the outer surface of the ring 33. The rubber anti-slip strips 36 can increase the friction between the ring 33 and the inner wall of the slot 32 when the ring 33 is inserted into the slot 32, so that the ring 33 is not easily accidentally removed from the slot 32. A plurality of reinforcing rods 37 are fixedly connected to one side of the groove ring 31. The reinforcing rods 37 are circumferentially distributed on one side of the inner wall of the groove ring 31. After the ring 33 is inserted into the slot 32, the inner side of the rubber sealing ring 34 can be supported by the reinforcing rods 37 to prevent the sealing ring 34 from bending inward and deforming as much as possible.
[0035] Working principle: When installing the valve, you can first insert the ring 33 into the slot 32 inside the groove ring 31 at one end of the inner wall of the two end pipes 4, so that the ring 33 is completely inside the slot 32, and fix the sealing ring 34 inside the end pipe 4. Then connect the fluid delivery pipe and the end pipe 4 through a flange. The sealing ring 34 will be on the inside of the connection between the fluid delivery pipe and the end pipe 4, further sealing the connection between the fluid delivery pipe and the end pipe 4, and connect the electric control device to the control block 7 on the outer surface of the control rod 5. The electric control device controls the control rod 5 to rotate and adjust the adjustment plate 6 to open and close. After the adjustment plate 6 seals the inside of the shell 1, the electric control device can be operated. The motor 22 drives the shaft 23 and the first gear 24 to rotate, and drives the second gear 25 to rotate through the first gear 24, so that the screw 26 moves downward on the inner wall of the second gear 25, driving the piston block 27 to slide downward on the inner wall of the control rod 5. The air inside the control rod 5 is pumped into the rubber strips 29 on both sides of the adjustment plate 6 through the air channel 28 through the piston block 27, so that the two rubber strips 29 expand and get stuck in the grooves 210 on both sides of the inner wall of the shell 1, further sealing the contact between the adjustment plate 6 and the inner wall of the shell 1. When the adjustment plate 6 is opened, the motor 22 is operated again to control the screw 26 to rise, driving the piston block 27 to move and extract the air in the rubber strips 29.
[0036] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification of the above embodiment based on the technical essence of the present invention that does not deviate from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
Claims
1. A high-precision valve casting, comprising a housing (1), characterized in that: The two ends of the shell (1) are respectively fixedly connected to the end tubes (4), the inner wall of the shell (1) is rotatably connected to the control rod (5), the outer surface of the control rod (5) is fixedly connected to the adjustment plate (6), one side of the control rod (5) is fixedly connected to the control block (7), the outer surface of the control rod (5) is provided with a filling device (2), the filling device (2) comprises a slot block (21), one side of the slot block (21) is fixedly connected to one side of the control rod (5), the outer surface of the slot block (21) is provided with a motor (22), the output end of the motor (22) is fixedly connected to a shaft (23), the outer surface of the shaft (23) is on the inner wall of the slot block (21), and the outer surface of the shaft (23) is fixedly connected to the inner wall of the slot block (21). The top end of the shaft (23) is fixedly connected to a first gear (24), the inner wall of the control rod (5) is slidably connected to a piston block (27), the top end of the piston block (27) is fixedly connected to a screw rod (26), the top end of the control rod (5) is rotatably connected to a second gear (25), the inner wall of the second gear (25) is threadedly connected to the outer surface of the screw rod (26), the first gear (24) is meshed with the outer surface of the second gear (25), an air duct (28) is provided inside the adjustment plate (6), rubber strips (29) are fixedly connected to both sides of the adjustment plate (6), and grooves (210) are provided on both sides of the inner wall of the housing (1).
2. A high-precision valve casting according to claim 1, characterized in that: The edges of both sides of the inner wall of the groove (210) are fixedly connected with convex strips (211), and the convex strips (211) are made of rubber material.
3. A high-precision valve casting according to claim 2, characterized in that: A positioning groove (212) is provided at the bottom end of the second gear (25), and a positioning rod (213) is fixedly connected to one side of the groove block (21), and the top end of the positioning rod (213) slides on the inner wall of the positioning groove (212).
4. A high-precision valve casting according to claim 3, characterized in that: One side of the positioning rod (213) is fixedly connected to a positioning block (214), and the end of the shaft rod (23) away from the motor (22) rotates on the inner wall of the positioning block (214).
5. A high-precision valve casting according to claim 4, characterized in that: A sealing device (3) is provided inside the end tube (4), and the sealing device (3) comprises a groove ring (31). The outer surface of the groove ring (31) is fixedly connected to the inner wall of the end tube (4). A slot (32) is provided on one side of the groove ring (31). A circular ring (33) is slidably inserted into the inner wall of the slot (32). A rubber sealing ring (34) is fixedly connected to one side of the circular ring (33).
6. A high-precision valve casting according to claim 5, characterized in that: Auxiliary plates (35) are fixedly connected to both sides of the inner wall of the sealing ring (34), and the auxiliary plates (35) are made of stainless steel.
7. A high-precision valve casting according to claim 6, characterized in that: A plurality of rubber anti-slip strips (36) are fixedly connected to the outer surface of the circular ring (33), and the anti-slip strips (36) are linearly distributed on the outer surface of the circular ring (33).
8. The high-precision valve casting according to claim 6, characterized in that: A plurality of reinforcing rods (37) are fixedly connected to one side of the groove ring (31), and the reinforcing rods (37) are circumferentially distributed on one side of the inner wall of the groove ring (31).