Valve with wear-resistant function

Abstract

The utility model discloses a valve with a wear-resistant function, which relates to the technical field of valves and comprises a valve body and a rotating component, and two valve clacks are symmetrically and rotatably mounted in the valve body. According to the utility model, through the arrangement of the rotating assembly, when the device is opened and closed, the rotating rod is firstly used for retracting the valve clack, then the valve rod is controlled to rotate, and finally the rotating rod is used for opening the valve clack, so that the valve clack is prevented from being in contact with the valve body in the rotating process, and the effect of remarkably reducing mechanical wear is achieved; the connecting ring plate is used for enabling the valve clack to have more effective leakproofness in the using process, the spring is installed between the connecting ring plate and the valve clack, so that a certain buffering acting force exists between the connecting ring plate and the valve clack, and direct collision or friction is avoided; the fixing ring provides a stable supporting and mounting foundation for the whole connecting assembly and is fixedly mounted at the bottom end of the valve rod, so that firm connection between the connecting assembly and the valve rod is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, in particular to a valve with a wear-resistant function. Background Art

[0002] A valve is an important mechanical device widely used in industrial production and daily life. It is usually installed in a pipeline system and plays a key role in controlling the flow of fluid media. The valve can open or close the pipeline passage and adjust the flow, pressure, temperature and other parameters of the fluid through different methods, such as rotation, lifting, sliding and other actions. There are many types of valves, including ball valves, gate valves, stop valves, butterfly valves, etc. Each valve has its specific structure and scope of application. The design and manufacture of valves need to consider many factors, such as the nature of the medium, working pressure, temperature, flow requirements, etc., to ensure its safe and reliable operation and meet the needs of different working conditions. The quality and performance of the valve directly affect the operating efficiency and safety of the entire pipeline system, and is an important part of ensuring the normal progress of industrial production and life.

[0003] Traditional valves will inevitably experience a certain degree of wear during mechanical operation, especially when it is necessary to turn the switch valve to regulate the flow of fluid. This wear mainly comes from the frictional contact between the valve stem and the internal structure of the valve body, as well as the repeated contact and separation of the sealing surface. As the valve is frequently opened and closed, the materials on these contact surfaces will gradually be worn, resulting in a decrease in sealing performance and an increase in leakage risk, which may even affect the overall service life and performance stability of the valve. Utility Model Content

[0004] The purpose of the utility model is to provide a valve with wear-resistant function to solve the problems raised in the above background technology.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0006] A valve with a wear-resistant function comprises a valve body and a rotating assembly, wherein two valve flaps are symmetrically and rotatably installed in the valve body; the rotating assembly is rotatably installed inside the valve body, the rotating assembly comprises a valve stem, the valve stem passes through the valve body and is rotatably installed on the upper end of the valve body, and the lower end of the valve stem is slidably connected to the valve flap, a rotating rod is rotatably installed inside the valve stem, a first gear is fixedly installed on the lower end of the rotating rod, the first gear is meshingly connected to the second gear, the second gear is rotatably installed inside the valve stem, the lower end of the second gear is symmetrically meshingly connected to two third gears, the two third gears are rotatably installed on the lower end of the valve stem, a bidirectional screw is fixedly installed in the middle of the two third gears, a plurality of sliding blocks are threadedly connected at both ends of the bidirectional screw, and the plurality of sliding blocks are fixedly installed on the upper end of the valve flap.

[0007] The above-mentioned technical scheme is adopted. In this scheme, when the device is in use, the worker who opens the valve rotates the rotating rod counterclockwise to control the rotation of the first gear, and drives the second gear to rotate clockwise, thereby driving the two third gears meshing with it to rotate clockwise. The two third gears rotate so that the two-way screw pushes the sliding blocks at both ends to push the two valve flaps to move inward, thereby separating the valve flap from the valve body. When the valve flap shrinks to the minimum, the valve stem is rotated, and then the rod is rotated clockwise to control the rotation of the first gear, and drives the second gear to rotate counterclockwise, thereby driving the two third gears meshing with it to rotate counterclockwise. The two third gears rotate so that the two-way screw pushes the sliding blocks at both ends to push the two valve flaps to move to both sides. Through the setting of the rotating component, when the device is opened and closed, the rotating rod is first used to retract the valve flap and then the valve stem is controlled to rotate, and finally the rotating rod is used to open the valve flap. During the rotation process, the valve flap avoids contact with the valve body, thereby achieving the effect of significantly reducing mechanical wear.

[0008] A further improvement of the technical solution of the utility model is that the two valve discs are connected by a connecting assembly, the connecting assembly is fixedly installed at the bottom end of the valve stem, the connecting assembly includes a fixing ring, two connecting ring plates are symmetrically fixedly installed at both ends of the fixing ring, the two connecting ring plates are slidingly connected to the valve disc, a spring is fixedly installed at one end of the two connecting ring plates away from the fixing ring, and the end of the spring away from the fixing ring is fixedly connected to the valve disc.

[0009] The above technical solution is adopted, in which the fixing ring serves as the central part of the connecting assembly. The fixing ring provides a stable support and installation basis for the entire connecting assembly. It is fixedly installed at the bottom end of the valve stem, ensuring a firm connection between the connecting assembly and the valve stem. Through the setting of the connecting assembly, the connecting ring plate is used to make the valve disc have more effective airtightness during use. A spring is installed between the connecting ring plate and the valve disc, so that there is a certain buffering force between the connecting ring plate and the valve disc to avoid direct collision or friction.

[0010] A further improvement of the technical solution of the utility model is that a limit stopper is fixedly installed on the upper end of the valve body, and a limit rod is fixedly installed on the valve stem.

[0011] The above-mentioned technical solution is adopted. The design of the limit block and the limit rod in this solution makes it possible for the limit rod to contact the limit block when the valve stem rotates to a specific position, thereby preventing the valve stem from continuing to rotate. By adjusting the position of the limit block and the limit rod, the angle and position of the valve stem rotation can be accurately controlled. This is particularly important for valve systems that require precise control of flow or pressure, and can ensure that the valve reaches a predetermined state when opening or closing.

[0012] A further improvement of the technical solution of the utility model is that: a plurality of sealing strips are fixedly installed at both ends of the fixing ring, and a sealing groove is provided at one end of the two valve flaps close to the connecting ring plate.

[0013] By adopting the above technical solution, through the provision of a sealing strip, when the valve disc is in the process of closing, the sealing strip is tightly embedded in the sealing groove. This close contact can effectively prevent the fluid from leaking through the gap between the valve disc and the connecting component.

[0014] A further improvement of the technical solution of the utility model is that two sealing rings are symmetrically fixedly installed inside the valve body, the two sealing rings are in airtight contact with one end of the two valve discs away from the fixed ring, and the one end of the two sealing rings away from the valve disc is set in a multi-stage inclined ladder shape.

[0015] The above-mentioned technical scheme is adopted. In this scheme, when the valve disc is opened and contacts the sealing ring, since the sealing ring has a certain elasticity and compressibility, it can absorb the impact force and vibration of the valve disc during movement, thereby playing a buffering role. At the same time, it helps to reduce the direct collision and friction between the valve disc and the valve body, reduce the wear of the valve disc, and extend the service life of the valve. At the same time, the sealing ring enhances the sealing between the valve disc and the valve body. The multi-stage inclined ladder design can increase the contact area between the sealing ring and the valve disc and improve the uniformity of the seal. The inclined ladder structure can also guide the fluid to flow along a specific path, reducing the erosion and wear of the fluid on the sealing surface.

[0016] A further improvement of the technical solution of the utility model is that a clamping block is fixedly installed on the upper end of the rotating rod, and a sliding seat is slidably installed on the upper end of the valve stem.

[0017] The above technical solution is adopted. In this solution, when the rotating rod is in a non-operating state, the sliding seat is slid to engage with the blocking block, thereby effectively limiting the rotation of the rotating rod. The sliding seat avoids the rotation of the rotating rod caused by external factors, thereby making the valve more stable.

[0018] A further improvement of the technical solution of the utility model is that two sealing covers are fixedly installed inside the valve body, and the two sealing covers are respectively tightly fitted with one end of the two valve discs away from the fixing ring.

[0019] The above technical solution is adopted. In this solution, the sealing cover is set so that the valve disc is in close contact with the sealing cover when the device is closed, thereby enhancing the overall sealing of the device. At the same time, when the device is closed, the sealing cover plays a buffering and protective role, so that the valve disc avoids mechanical impact and friction with the valve body during the extension process.

[0020] Due to the adoption of the above technical solution, the utility model has achieved the following technical progress compared with the prior art:

[0021] 1. The utility model provides a valve with wear-resistant function. Through the setting of the rotating component, when the device is opened and closed, the valve disc is first retracted by using the rotating rod and then the valve stem is controlled to rotate, and finally the valve disc is opened by using the rotating rod. The valve disc avoids contact with the valve body during the rotation process, thereby achieving the effect of significantly reducing mechanical wear. In addition, through the setting of the connecting component, the connecting ring plate is used to make the valve disc have more effective airtightness during use. The spring is installed between the connecting ring plate and the valve disc so that there is a certain buffering force between the connecting ring plate and the valve disc to avoid direct collision or friction. The fixing ring is the central part of the connecting component. The fixing ring provides a stable support and installation basis for the entire connecting component. It is fixedly installed at the bottom end of the valve stem to ensure a firm connection between the connecting component and the valve stem.

[0022] 2. The utility model provides a valve with a wear-resistant function. Through the setting of a limit stop and a limit rod, the design of the limit stop and the limit rod makes it possible for the limit rod to contact the limit stop when the valve stem rotates to a specific position, thereby preventing the valve stem from continuing to rotate. By adjusting the position of the limit stop and the limit rod, the angle and position of the valve stem rotation can be accurately controlled. This is particularly important for valve systems that require precise control of flow or pressure, and can ensure that the valve reaches a predetermined state when opened or closed. In addition, through the setting of the sealing strip, when the valve disc is in the closing process, the sealing strip is tightly embedded in the sealing groove. This close contact can effectively prevent the fluid from leaking through the gap between the valve disc and the connecting component. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The utility model will be further described below in conjunction with the accompanying drawings.

[0024] Figure 1 It is a first overall structural schematic diagram of the utility model;

[0025] Figure 2 This is a schematic diagram of the cross-sectional structure of the valve body of the utility model;

[0026] Figure 3 This is a schematic diagram of the valve disc and valve stem structure of the utility model;

[0027] Figure 4 It is a schematic diagram of the overall cross-sectional structure of the utility model;

[0028] Figure 5 This is a schematic diagram of the structure of the first gear, the second gear and the third gear of the utility model;

[0029] Figure 6 It is a schematic diagram of the structure of the rotating rod, the sliding seat and the clamping block of the utility model.

[0030] In the figure: 1. valve disc; 2. valve stem; 3. rotating rod; 4. first gear; 5. second gear; 6. third gear; 7. sliding block; 8. fixing ring; 9. connecting ring plate; 10. spring; 11. sealing strip; 12. sealing groove; 13. sealing ring; 14. clamping block; 15. sliding seat; 16. valve body; 17. connecting assembly; 18. sealing cover; 19. limit block; 20. limit rod; 21. bidirectional screw. DETAILED DESCRIPTION

[0031] The present invention is further described in detail below in conjunction with the embodiments:

[0032] Example 1

[0033] like Figure 1-6 As shown, the utility model provides a valve with a wear-resistant function, including a valve body 16 and a rotating assembly, wherein two valve flaps 1 are symmetrically and rotatably installed in the valve body 16; the rotating assembly is rotatably installed inside the valve body 16, and the rotating assembly includes a valve stem 2, the valve stem 2 penetrates the valve body 16 and is rotatably installed on the upper end of the valve body 16; the lower end of the valve stem 2 is in contact with the valve flap 1, a rotating rod 3 is rotatably installed inside the valve stem 2, a first gear 4 is fixedly installed on the lower end of the rotating rod 3, the first gear 4 is meshingly connected with a second gear 5, the second gear 5 is rotatably installed inside the valve stem 2, the lower end of the second gear 5 is symmetrically meshed and connected with two third gears 6, the two third gears 6 are rotatably installed on the lower end of the valve stem 2, a bidirectional screw 21 is fixedly installed in the middle of the two third gears 6, a plurality of sliding blocks 7 are threadedly connected at both ends of the bidirectional screw 21, and the plurality of sliding blocks 7 are fixedly installed on the upper end of the valve flap 1.

[0034] In this embodiment, when the device is in use, the worker who opens the valve rotates the rotating rod 3 counterclockwise to control the rotation of the first gear 4, and drives the second gear 5 to rotate clockwise, thereby driving the two third gears 6 meshed with it to rotate clockwise. The two third gears 6 rotate so that the two-way screw 21 pushes the sliding blocks 7 at both ends to push the two valve flaps 1 to move inward, thereby separating the valve flap 1 from the valve body 16. When the valve flap 1 shrinks to the minimum, the valve stem 2 is rotated, and then the rod 3 is rotated clockwise to control the rotation of the first gear 4, and drives the second gear 5 to rotate counterclockwise, thereby driving the two third gears 6 meshed with it to rotate counterclockwise. The two third gears 6 rotate so that the two-way screw 21 pushes the sliding blocks 7 at both ends to push the two valve flaps 1 to move to both sides. Through the setting of the rotating component, when the device is opened and closed, the rotating rod 3 is first used to retract the valve flap 1 and then control the rotation of the valve stem 2. Finally, the rotating rod 3 is used to open the valve flap 1. During the rotation process, the valve flap 1 avoids contact with the valve body 16, thereby achieving the effect of significantly reducing mechanical wear.

[0035] like Figure 4As shown, in this embodiment, preferably, the two valve flaps 1 are connected by a connecting assembly 17, and the connecting assembly 17 is fixedly installed at the bottom end of the valve stem 2. The connecting assembly 17 includes a fixing ring 8, and two connecting ring plates 9 are symmetrically fixedly installed at both ends of the fixing ring 8. The two connecting ring plates 9 are slidingly connected to the valve flap 1, and a spring 10 is fixedly installed at one end of the two connecting ring plates 9 away from the fixing ring 8, and the end of the spring 10 away from the fixing ring 8 is fixedly connected to the valve flap 1.

[0036] In this embodiment, the fixing ring 8 serves as the central part of the connecting assembly 17. The fixing ring 8 provides a stable support and installation basis for the entire connecting assembly 17. It is fixedly installed at the bottom end of the valve stem 2 to ensure a firm connection between the connecting assembly 17 and the valve stem 2. Through the setting of the connecting assembly 17 and the use of the connecting ring plate 9, the valve flap 1 has a more effective airtightness during use. The spring 10 is installed between the connecting ring plate 9 and the valve flap 1, so that there is a certain buffering force between the connecting ring plate 9 and the valve flap 1 to avoid direct collision or friction.

[0037] like Figure 2 As shown, preferably, a limit stopper 19 is fixedly installed on the upper end of the valve body 16 , and a limit rod 20 is fixedly installed on the valve stem 2 .

[0038] In this embodiment, the design of the limit stop block 19 and the limit rod 20 is such that when the valve stem 2 rotates to a specific position, the limit rod 20 will contact the limit stop block 19, thereby preventing the valve stem 2 from continuing to rotate. By adjusting the position of the limit stop block 19 and the limit rod 20, the rotation angle and position of the valve stem 2 can be precisely controlled, thereby ensuring that the device reaches a predetermined state when opened or closed.

[0039] Example 2

[0040] like Figure 5 As shown, based on Example 1, the utility model provides a technical solution: preferably, a plurality of sealing strips 11 are fixedly installed at both ends of the fixing ring 8, and a sealing groove 12 is opened at one end of the two valve flaps 1 close to the connecting ring plate 9.

[0041] In this embodiment, by setting the sealing strip 11, when the valve flap 1 is in the closing process, the sealing strip 11 is tightly embedded in the sealing groove 12. This close contact can effectively prevent the fluid from leaking through the gap between the valve flap 1 and the connecting component 17.

[0042] like Figure 4 As shown, preferably, two sealing rings 13 are symmetrically fixedly installed inside the valve body 16, and the two sealing rings 13 are in airtight contact with one end of the two valve discs 1 away from the fixing ring 8, and the one end of the two sealing rings 13 away from the valve disc 1 is set in a multi-stage inclined ladder shape.

[0043] In this embodiment, when the valve flap 1 is opened and contacts the sealing ring 13, since the sealing ring 13 has certain elasticity and compressibility, it can absorb the impact force and vibration of the valve flap 1 during movement, thereby playing a buffering role. At the same time, it helps to reduce the direct collision and friction between the valve flap 1 and the valve body 16, reduce the wear of the valve flap 1, and extend the service life of the valve. At the same time, the sealing ring 13 enhances the sealing between the valve flap 1 and the valve body 16. The multi-stage inclined ladder design can increase the contact area between the sealing ring 13 and the valve flap 1 and improve the uniformity of the seal. The inclined ladder structure can also guide the fluid to flow along a specific path, reducing the erosion and wear of the fluid on the sealing surface.

[0044] Example 3

[0045] like Figure 6 As shown, based on Example 1, the utility model provides a technical solution: preferably, a clamping block 14 is fixedly installed on the upper end of the rotating rod 3, and a sliding seat 15 is slidably installed on the upper end of the valve stem 2.

[0046] In this embodiment, when the rotating rod 3 is in a non-operating state, the sliding seat 15 is slid to engage with the block 14, thereby effectively limiting the rotation of the rotating rod 3. This locking mechanism avoids the rotation of the rotating rod 3 caused by external factors, thereby making the valve more stable.

[0047] Example 4

[0048] like Figure 2 As shown, based on Example 1, the utility model provides a technical solution: preferably, two sealing covers 18 are fixedly installed inside the valve body 16, and the two sealing covers 18 are tightly fitted with one end of the two valve discs 1 away from the fixing ring 8 respectively.

[0049] In this embodiment, by setting the sealing cover 18, the valve flap 1 is in close contact with the sealing cover 18 when the device is closed, thereby enhancing the overall sealing of the device. At the same time, when the device is closed, the sealing cover 18 plays a buffering and protective role, so that the valve flap 1 avoids mechanical impact and friction with the valve body 16 during the extension process.

[0050] The working principle of the valve with wear-resistant function is described in detail below.

[0051] like Figure 1-6As shown, when the device is in the closed state, the valve is opened. The worker first moves the sliding seat 15 to release the limit on the block 14, and then the worker rotates the rotating rod 3 counterclockwise to control the rotation of the first gear 4, and drives the second gear 5 to rotate clockwise, thereby driving the two third gears 6 meshing with it to rotate clockwise. The two third gears 6 rotate to make the two-way screw 21 push the sliding blocks 7 at both ends thereof to push the two valve flaps 1 to move inward, so that the valve flap 1 is separated from the sealing ring 13 on the inner wall of the valve body 16. When the valve flap 1 contacts the fixing ring 8, the sliding seat 15 is used to clamp the block 14 on the rotating rod 3, and then the valve stem 2 is rotated counterclockwise. When the limit block 19 on the valve stem 2 touches the limit rod 20, the rotation stops, and then the sliding seat 15 is used to clamp the block 14 on the rotating rod 3. Then ... sliding seat 15 is used to clamp the block The seat 15 is moved away, and the clockwise rotating rod 3 controls the rotation of the first gear 4, and drives the second gear 5 to rotate counterclockwise, thereby driving the two third gears 6 meshing with it to rotate counterclockwise. The two third gears 6 rotate to make the bidirectional screw 21 push the sliding blocks 7 at both ends thereof to push the two valve flaps 1 to move to both sides, so that the valve flap 1 is in close contact with the sealing ring 13. At this time, the device is in the open state, and the sliding seat 15 fixes the block 14. Through the setting of the rotating component, when the device is opened and closed, the rotating rod 3 is first used to retract the valve flap 1 and then control the rotation of the valve stem 2. Finally, the rotating rod 3 is used to open the valve flap 1. During the rotation process, the valve flap 1 avoids contact with the valve body 16, thereby achieving the effect of significantly reducing mechanical wear.

[0052] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not deviate from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A valve with wear-resistant function, characterized in that: include: A valve body (16), wherein two valve flaps (1) are symmetrically mounted for rotation in the valve body (16); A rotating assembly, wherein the rotating assembly is rotatably mounted inside a valve body (16), and the rotating assembly comprises a valve stem (2), wherein the valve stem (2) penetrates the valve body (16) and is rotatably mounted on the upper end of the valve body (16), wherein the lower end of the valve stem (2) is slidably connected to the valve flap (1), wherein a rotating rod (3) is rotatably mounted inside the valve stem (2), wherein a first gear (4) is fixedly mounted on the lower end of the rotating rod (3), wherein the first gear (4) is meshingly connected to a second gear (5), wherein the second gear (5) is rotatably mounted inside the valve stem (2), wherein the lower end of the second gear (5) is symmetrically meshingly connected to two third gears (6), wherein the two third gears (6) are rotatably mounted on the lower end of the valve stem (2), wherein a bidirectional screw (21) is fixedly mounted in the middle of the two third gears (6), wherein both ends of the bidirectional screw (21) are threadedly connected to a plurality of sliding blocks (7), wherein the plurality of sliding blocks (7) are fixedly mounted on the upper end of the valve flap (1).

2. A valve with wear-resistant function according to claim 1, characterized in that: The two valve flaps (1) are connected via a connecting assembly (17), and the connecting assembly (17) is fixedly mounted on the bottom end of the valve stem (2). The connecting assembly (17) comprises a fixing ring (8), and two connecting ring plates (9) are symmetrically fixedly mounted at both ends of the fixing ring (8). The two connecting ring plates (9) are slidably connected to the valve flaps (1), and a spring (10) is fixedly mounted at one end of the two connecting ring plates (9) away from the fixing ring (8), and the end of the spring (10) away from the fixing ring (8) is fixedly connected to the valve flap (1).

3. The valve with wear-resistant function according to claim 1, characterized in that: A limit stopper (19) is fixedly mounted on the upper end of the valve body (16), and a limit rod (20) is fixedly mounted on the valve stem (2).

4. The valve with wear-resistant function according to claim 2, characterized in that: A plurality of sealing strips (11) are fixedly mounted on both ends of the fixing ring (8), and a sealing groove (12) is formed at one end of the two valve flaps (1) close to the connecting ring plate (9).

5. The valve with wear-resistant function according to claim 1, characterized in that: Two sealing rings (13) are symmetrically fixedly installed inside the valve body (16), and the two sealing rings (13) are in airtight contact with one end of the two valve flaps (1) away from the fixing ring (8), and the one end of the two sealing rings (13) away from the valve flaps (1) is configured in a multi-stage inclined ladder shape.

6. The valve with wear-resistant function according to claim 1, characterized in that: A clamping block (14) is fixedly mounted on the upper end of the rotating rod (3), and a sliding seat (15) is slidably mounted on the upper end of the valve stem (2).

7. The valve with wear-resistant function according to claim 1, characterized in that: Two sealing covers (18) are fixedly installed inside the valve body (16), and the two sealing covers (18) are respectively tightly fitted to one end of the two valve flaps (1) away from the fixing ring (8).

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