Ball valve with wear-resistant function

Abstract

The invention relates to the field of ball valves, and particularly discloses a ball valve with a wear-resistant function, which comprises a shell, a mounting seat is arranged on the shell, a valve rod is connected to the mounting seat through a bearing, a valve core for controlling the on-off of fluid is arranged on the valve rod in the shell, and a sealing ring is arranged between the shell and the valve core. An operation assembly is arranged on the valve rod, a pushing assembly penetrating through the valve element is arranged at the output end of the operation assembly, and an adjusting assembly is arranged in the valve element. When the valve element is in the open state, the separation effect and the buffering effect on fluid can be achieved, the impact force on the valve element is greatly reduced, abrasion to the valve element is effectively reduced, when the valve element is in the closed state, the stability of the valve element can be remarkably improved, the shaking degree of the valve element is reduced, abrasion to the valve element and corresponding parts is further reduced, and the service life of the valve element is prolonged. The abrasion degree of the ball valve is reduced, the abrasion resistance is greatly improved, the sealing capacity of the ball valve is improved, and therefore the service life of the ball valve is prolonged.

Description

Technical Field

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

[0002] A ball valve is a type of valve that uses a sphere with a hole to control the flow of fluid. The main function of a ball valve is to open or close the flow of media in a pipeline by rotating. When the ball valve is fully open, the fluid can flow directly through the straight hole in the center of the sphere, so its fluid resistance is relatively small; when the ball valve is closed, the ball rotates so that the hole is perpendicular to the direction of the pipeline, preventing the flow of fluid; wear resistance needs to be considered during the design of the ball valve, especially in specific application scenarios, where the wear resistance of the ball valve directly affects its service life.

[0003] In the existing patent CN113700890A, a ball valve is disclosed, comprising: a shell, a mounting shell is provided on the top of the shell, a track groove is provided on the surface of the mounting shell, and a channel one and a channel two are provided in the shell; a switch mechanism, the switch mechanism is installed in the shell, and the switch mechanism is located between the channel one and the channel two; a valve stem, the valve stem is installed in the shell, one end of the valve stem passes through the mounting shell, and the other end of the valve stem is installed on the outside of the switch mechanism, and a guide member is provided on the surface of the valve stem that can limit the movement of the valve stem in the track groove. When the guide member of the valve stem moves in the track groove, the present invention first separates the sealing shell from the sealing ring, and then rotates the cylinder to the connecting position of the channel one and the channel two, thereby reducing the wear between the sealing shell and the sealing ring, extending the service life of the ball valve, and facilitating the use of the ball valve. Moreover, the gradual loosening of the sealing shell and the sealing ring can also relieve the pressure of the liquid or gas, thereby making the use of the ball valve more convenient.

[0004] For viscous fluids such as oil, the above structure can achieve the effect of reducing the wear of the ball valve. However, in the process of the ball valve controlling the fluid on and off, the viscous fluid will generate impact force when the ball valve is opened or closed. When the ball valve is in the open state, due to the small resistance, the fluid completely impacts the inside of the ball valve, causing the fluid to impact the inside of the ball valve, thereby causing the ball valve to wear. When the ball valve is closed, due to the inertia of the fluid, the fluid generates a back and forth impact force on the ball valve, causing the fluid to impact the side of the ball valve, thereby causing an impact effect on the ball valve and corresponding components, resulting in serious wear of the ball valve, increasing the degree of wear of the ball valve, reducing the sealing effect of the ball valve, and reducing the service life of the ball valve.

[0005] Therefore, how to provide a ball valve with wear-resistant function is a problem that those skilled in the art urgently need to solve. Summary of the Invention

[0006] One object of the present invention is to provide a ball valve with a wear-resistant function. The ball valve with a wear-resistant function described in the present invention comprises a shell, a mounting seat is provided on the shell, a valve stem is connected to a bearing on the mounting seat, a valve core for controlling the flow of fluid is provided on the valve stem and located in the shell, a sealing ring is provided between the shell and the valve core, an operating component is provided on the valve stem, a pushing component that passes through the valve core is provided at the output end of the operating component, an adjusting component is provided inside the valve core, a transmission component is provided between the adjusting component and the pushing component, a buffer component is provided on the adjusting component, a separation component that is adapted to the valve core is provided at the output end of the buffer component, and the buffer A sliding assembly and a supporting assembly are provided between the impact assembly and the valve core, the sliding assembly and the supporting assembly form a support for the separation assembly, and an energy absorbing assembly is provided on the buffer assembly; wherein, when the valve core is in an open state, the movement of the operating assembly is used to force the separation assembly to extend out of the valve core, and when the fluid impacts the valve core, the separation assembly separates the impact of the fluid, and the buffer assembly buffers the fluid to reduce the impact of the fluid on the valve core; when the valve core is in a closed state, the movement of the operating assembly is used to force the separation assembly to conflict with the housing, and when the fluid impacts the side of the valve core, the stability of the valve core is ensured, thereby reducing the wear of the valve core.

[0007] Preferably, the operating component includes an oil storage cylinder arranged on the valve stem, the oil storage cylinder passes through the valve stem, the oil storage cylinder is filled with hydraulic oil, an operating piston is arranged in the oil storage cylinder, the operating piston has an operating threaded rod connected to the bearing, and the operating threaded rod threads through the oil storage cylinder.

[0008] Preferably, the pushing assembly includes a pushing piston arranged in the oil storage cylinder, the pushing piston is provided with a pushing rod passing through the oil storage cylinder and the valve core, and a pushing spring is provided between the pushing piston and the oil storage cylinder and is sleeved on the outer ring of the pushing rod.

[0009] Preferably, the adjustment assembly includes an adjustment threaded rod connected to the inside of the valve core by a bearing, a threaded sleeve is threadedly connected to the adjustment threaded rod, the adjustment threaded rod thread passes through the threaded sleeve, a mounting rod is provided on the threaded sleeve, and the buffer assembly is provided on the mounting rod.

[0010] Preferably, the transmission assembly includes a connecting rod arranged on the pushing rod, a transmission spur rack is provided on the connecting rod, and a transmission gear meshing with the transmission spur rack is provided on the adjusting threaded rod.

[0011] Preferably, the buffer assembly includes a buffer cylinder arranged on the mounting rod, a connecting block is provided on the buffer cylinder, a buffer piston is provided in the buffer cylinder, a buffer rod passing through the buffer cylinder and the connecting block is provided on the buffer piston, the separation assembly is provided on the buffer rod, and a buffer spring is provided between the separation assembly and the connecting block and is sleeved on the outer ring of the buffer rod.

[0012] Preferably, the separation assembly includes a connecting plate arranged on the buffer rod, the free end of the buffer spring is connected to the connecting plate, a separation head is provided on the connecting plate, both the connecting plate and the separation head are provided with through holes, and a separation plate for separating the fluid is provided on the connecting plate.

[0013] Preferably, the sliding assembly includes a support rod provided on the buffer cylinder, a sliding block penetrating the valve core is provided on the support rod, and a sliding spring is provided between the sliding block and the valve core.

[0014] Preferably, the support assembly includes a support block hinged on the connecting block, a support outer rod is hinged on the inner wall of the valve core, a support inner rod is hinged on the support block and inserted into the support outer rod, and a support spring is provided between the support block and the support outer rod and is sleeved on the outer ring of the support inner rod.

[0015] Preferably, the energy absorbing assembly includes an energy absorbing cylinder arranged on the buffer cylinder, and the energy absorbing cylinder is provided with an air outlet pipe and an air inlet pipe, and the air outlet pipe and the air inlet pipe are both connected to the buffer cylinder.

[0016] The beneficial effects of the present invention are as follows:

[0017] The present invention controls the flow of fluid by controlling the state of the valve core through the valve stem. When the valve core is connected to the housing, that is, the valve core is in the open state, the fluid will impact the valve core when passing through the valve core, forcing the valve core to wear. At this time, the operating component is activated, forcing the operating component to drive the pushing component to move, so that the pushing component drives the transmission component to rotate, and the transmission component drives the adjusting component to move. Under the joint action of the supporting component and the sliding component, the adjusting component drives the buffer component to move forward, so that the separation component extends out of the valve core. When the fluid impacts, the fluid first passes through the separation component, so that the separation component separates the fluid, so that the overall impact of the fluid is reduced, and the fluid converges in the valve core and flows downstream. At the same time, when the fluid impacts the separation component, the buffer component buffers the impact force, and the energy absorption component releases the impact force, greatly reducing the impact effect, thereby reducing the impact of the fluid on the valve core and reducing the wear of the valve core when the valve core is in the open state; when the valve core is disconnected from the housing, that is, the valve core is in the closed state, the fluid will impact the side of the valve core when passing through the valve core, forcing the valve core to rock back and forth, causing wear to the valve core and corresponding parts. At this time, the operating component is started, forcing the operating component to drive the pushing component to move, so that the pushing component drives the transmission component to rotate, and the transmission component drives the adjusting component to move. Under the joint action of the supporting component and the sliding component, the adjusting component drives the buffer component to move forward, and the separation component to move forward until the end of the separation component contacts the inner wall of the shell. Under the action of the separation component and the buffer component, the valve core forms support in multiple directions, thereby improving the stability of the valve core. When the fluid impacts, the stability of the valve core is improved, the degree of shaking of the valve core is greatly reduced, thereby further reducing the wear of the valve core when the valve core is closed. In summary, the ball valve with wear-resistant function of the present application can realize the separation and buffering effects on the fluid when the valve core is in the open state, greatly reduce the impact force on the valve core, and effectively reduce the wear on the valve core. When the valve core is in the closed state, it can significantly improve the stability of the valve core, reduce the shaking degree of the valve core, further reduce the wear of the valve core and corresponding components, reduce the wear degree of the ball valve, greatly improve the wear resistance, improve the sealing ability of the ball valve, and thus increase the service life of the ball valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0019] Figure 1 It is a solid diagram of the three-dimensional structure of the present invention;

[0020] Figure 2 A structural entity diagram of the valve core of the present invention;

[0021] Figure 3 It is a physical diagram of the internal structure of the present invention;

[0022] Figure 4 A structural entity diagram of the operating components of the present invention;

[0023] Figure 5 A structural diagram of the propulsion assembly of the present invention;

[0024] Figure 6 It is a partial structural entity diagram of the present invention;

[0025] Figure 7 A front view of the adjustment assembly of the present invention;

[0026] Figure 8 A diagram showing the connection relationship between the buffer assembly and the separation assembly of the present invention;

[0027] Figure 9 A structural entity diagram of the sliding assembly of the present invention;

[0028] Figure 10 It is a structural entity diagram of the support assembly of the present invention.

[0029] In the figure: 1. Housing; 2. Mounting seat; 3. Valve stem; 4. Valve core; 5. Operating assembly; 501. Oil storage cylinder; 502. Operating piston; 503. Operating threaded rod; 6. Push assembly; 601. Push piston; 602. Push rod; 603. Push spring; 7. Adjustment assembly; 701. Adjustment threaded rod; 702. Threaded sleeve; 703. Mounting rod; 8. Transmission assembly; 801. Connecting rod; 802. Transmission spur rack; 803. Transmission gear; 9. Buffer assembly; 901. Buffer cylinder; 902. Connecting block; 903 , buffer piston; 904, buffer rod; 905, buffer spring; 10, separation assembly; 1001, connecting plate; 1002, separation head; 1003, through hole; 1004, separation plate; 11, sliding assembly; 1101, support rod; 1102, sliding block; 1103, sliding spring; 12, support assembly; 1201, support block; 1202, support outer rod; 1203, support inner rod; 1204, support spring; 13, energy absorption assembly; 1301, energy absorption cylinder; 1302, exhaust pipe; 1303, intake pipe. DETAILED DESCRIPTION

[0030] The present invention will now be described in further detail with reference to the accompanying drawings, which are simplified schematic diagrams that illustrate the basic structure of the present invention in a schematic manner.

[0031] Example 1:

[0032] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 、 Figure 9 and Figure 10 As shown, a ball valve with a wear-resistant function of the present invention comprises a shell 1, a mounting seat 2 is provided on the shell 1, a valve stem 3 is connected to the bearing on the mounting seat 2, a valve core 4 for controlling the flow of fluid is provided on the valve stem 3 and located inside the shell 1, a sealing ring is provided between the shell 1 and the valve core 4, an operating component 5 is provided on the valve stem 3, a pushing component 6 that passes through the valve core 4 is provided at the output end of the operating component 5, an adjusting component 7 is provided inside the valve core 4, a transmission component 8 is provided between the adjusting component 7 and the pushing component 6, a buffer component 9 is provided on the adjusting component 7, a separation component 10 that is adapted to the valve core 4 is provided at the output end of the buffer component 9, and a sealing ring is provided between the buffer component 9 and the valve core 4. A sliding component 11 and a support component 12 are provided, and the sliding component 11 and the support component 12 form a support for the separation component 10, and an energy absorption component 13 is provided on the buffer component 9; wherein, when the valve core 4 is in the open state, the movement of the operating component 5 is used to force the separation component 10 to extend out of the valve core 4, and when the fluid impacts the valve core 4, the separation component 10 separates the impact of the fluid, and the buffer component 9 buffers the fluid to reduce the impact of the fluid on the valve core 4; when the valve core 4 is in the closed state, the movement of the operating component 5 is used to force the separation component 10 to conflict with the housing 1, and when the fluid impacts the side of the valve core 4, the stability of the valve core 4 is ensured, thereby reducing the wear of the valve core 4.

[0033] Working principle: The valve stem 3 is used to control the state of the valve core 4 to control the on-off of the fluid. When the valve core 4 is in a connected state with the housing 1, that is, the valve core 4 is in an open state, when the fluid passes through the valve core 4, it will impact the valve core 4, forcing the valve core 4 to wear. At this time, the operating component 5 is started, forcing the operating component 5 to drive the pushing component 6 to move, so that the pushing component 6 drives the transmission component 8 to rotate, and the transmission component 8 drives the adjusting component 7 to move. Under the joint action of the supporting component 12 and the sliding component 11, the adjusting component 7 drives the buffer component 9 to move forward, so that the separation component 10 extends out of the valve core 4. When the fluid impacts, the fluid First, it passes through the separation component 10, so that the separation component 10 separates the fluid, so that the overall impact of the fluid is reduced, and the fluid converges in the valve core 4 and flows downstream. At the same time, when the fluid impacts the separation component 10, the buffer component 9 buffers the impact force, and the energy absorption component 13 releases the impact force, greatly reducing the impact effect, thereby reducing the impact of the fluid on the valve core 4 and reducing the wear of the valve core 4 when the valve core 4 is open; when the valve core 4 is disconnected from the housing 1, that is, the valve core 4 is closed, when the fluid passes through the valve core 4, it will impact the side of the valve core 4, forcing the valve core 4 to swing back and forth, causing the valve core 4 and the corresponding parts to The parts are worn, and the operating component 5 is started at this time, forcing the operating component 5 to drive the pushing component 6 to move, so that the pushing component 6 drives the transmission component 8 to rotate, and the transmission component 8 drives the adjusting component 7 to move. Under the joint action of the supporting component 12 and the sliding component 11, the adjusting component 7 drives the buffer component 9 to move forward, so that the separating component 10 moves forward until the end of the separating component 10 conflicts with the inner wall of the housing 1. Under the action of the separating component 10 and the buffer component 9, the valve core 4 forms support in multiple directions, thereby improving the stability of the valve core 4. When the fluid impacts, due to the stability of the valve core 4 Improved, greatly reducing the degree of shaking of the valve core 4, thereby further reducing the wear of the valve core 4 when the valve core 4 is in the closed state; in summary, the ball valve with wear-resistant function of the present application can realize the separation and buffering effects on the fluid when the valve core 4 is in the open state, greatly reducing the impact force on the valve core 4, and effectively reducing the wear on the valve core 4; when the valve core 4 is in the closed state, it can significantly improve the stability of the valve core 4, reduce the degree of shaking of the valve core 4, further reduce the wear of the valve core 4 and corresponding parts, reduce the wear degree of the ball valve, greatly improve the wear resistance, improve the sealing ability of the ball valve, thereby improving the service life of the ball valve.

[0034] Example 2:

[0035] like Figure 1 、 Figure 2 、 Figure 3 and Figure 4As shown, the present invention is a ball valve with wear-resistant function, the operating component 5 includes an oil storage cylinder 501 arranged on the valve stem 3, the oil storage cylinder 501 passes through the valve stem 3, the oil storage cylinder 501 is filled with hydraulic oil, the oil storage cylinder 501 is provided with an operating piston 502, the operating piston 502 has a bearing connected to the operating threaded rod 503, and the operating threaded rod 503 passes through the oil storage cylinder 501 through a thread.

[0036] like Figure 3 and Figure 5 As shown, a ball valve with wear-resistant function of the present invention, the pushing component 6 includes a pushing piston 601 arranged in the oil storage cylinder 501, and a pushing rod 602 penetrating the oil storage cylinder 501 and the valve core 4 is provided on the pushing piston 601, and a pushing spring 603 is provided between the pushing piston 601 and the oil storage cylinder 501 and is sleeved on the outer ring of the pushing rod 602.

[0037] like Figure 6 and Figure 7 As shown, a ball valve with wear-resistant function of the present invention, the adjusting component 7 includes an adjusting threaded rod 701 whose bearing is connected to the inside of the valve core 4, a threaded sleeve 702 is threadedly connected to the adjusting threaded rod 701, the adjusting threaded rod 701 is threaded through the threaded sleeve 702, a mounting rod 703 is provided on the threaded sleeve 702, and the buffer component 9 is provided on the mounting rod 703.

[0038] like Figure 3 、 Figure 5 and Figure 7 As shown, a ball valve with wear-resistant function of the present invention, the transmission assembly 8 includes a connecting rod 801 arranged on the push rod 602, a transmission spur rack 802 is arranged on the connecting rod 801, and a transmission gear 803 meshing with the transmission spur rack 802 is arranged on the adjusting threaded rod 701.

[0039] like Figure 6 、 Figure 7 and Figure 8 As shown, a ball valve with wear-resistant function of the present invention, the buffer component 9 includes a buffer cylinder 901 arranged on the mounting rod 703, a connecting block 902 is arranged on the buffer cylinder 901, a buffer piston 903 is arranged in the buffer cylinder 901, and a buffer rod 904 passing through the buffer cylinder 901 and the connecting block 902 is arranged on the buffer piston 903. The separation component 10 is arranged on the buffer rod 904, and a buffer spring 905 is arranged between the separation component 10 and the connecting block 902 and is sleeved on the outer ring of the buffer rod 904.

[0040] like Figure 2 、 Figure 3 、 Figure 6 and Figure 8As shown, a ball valve with wear-resistant function of the present invention, the separation component 10 includes a connecting plate 1001 arranged on the buffer rod 904, the free end of the buffer spring 905 is connected to the connecting plate 1001, a separation head 1002 is provided on the connecting plate 1001, and a through hole 1003 is provided on the connecting plate 1001 and the separation head 1002, and a separation plate 1004 for separating the fluid is provided on the connecting plate 1001.

[0041] like Figure 6 、 Figure 7 and Figure 9 As shown, the present invention is a ball valve with wear-resistant function, the sliding assembly 11 includes a support rod 1101 arranged on the buffer cylinder 901, the support rod 1101 is provided with a sliding block 1102 passing through the valve core 4, and a sliding spring 1103 is provided between the sliding block 1102 and the valve core 4.

[0042] like Figure 6 、 Figure 8 and Figure 10 As shown, a ball valve with wear-resistant function of the present invention, the support assembly 12 includes a support block 1201 hinged on the connecting block 902, the inner wall of the valve core 4 is hinged with a support outer rod 1202, the support block 1201 is hinged with a support inner rod 1203 inserted in the support outer rod 1202, and a support spring 1204 is provided between the support block 1201 and the support outer rod 1202 and is sleeved on the outer ring of the support inner rod 1203.

[0043] like Figure 6 and Figure 7 As shown, the present invention is a ball valve with wear-resistant function, the energy absorption component 13 includes an energy absorption cylinder 1301 arranged on the buffer cylinder 901, and the energy absorption cylinder 1301 is provided with an outlet pipe 1302 and an inlet pipe 1303, and the outlet pipe 1302 and the inlet pipe 1303 are both connected to the buffer cylinder 901.

[0044] Working principle: By rotating the valve stem 3, the valve core 4 is forced to rotate, and the state of the valve core 4 is controlled to control the flow of the fluid. When the valve core 4 is connected to the housing 1, that is, the valve core 4 is open, the fluid passing through the valve core 4 will impact the valve core 4, forcing the valve core 4 to wear;

[0045] At this time, the operating threaded rod 503 is rotated, and under the action of the oil storage cylinder 501, the operating threaded rod 503 drives the operating piston 502 to move downward, and the operating piston 502 compresses the hydraulic oil in the oil storage cylinder 501, so that the hydraulic oil drives the pushing piston 601 to move, and the pushing piston 601 drives the pushing rod 602 to move, so that the pushing rod 602 drives the connecting rod 801 to move, and the connecting rod 801 drives the transmission spur rack 802 to move downward, and the transmission spur rack 802 drives the transmission gear 803 to rotate, and the rotation of the transmission gear 803 drives the adjusting threaded rod 701 to rotate, and the adjusting threaded rod 701 drives the threaded sleeve 702 to move, so that the threaded sleeve 702 drives the installation rod 703 to move, and the installation rod 703 drives the buffer The cylinder 901 and the connecting block 902 move forward, and at this time the support rod 1101 moves along with it, and the support rod 1101 drives the sliding block 1102 to slide, and the sliding spring 1103 is compressed. At the same time, the connecting block 902 drives the support block 1201 to move, so that the support block 1201 drives the supporting inner rod 1203 to move inside the supporting outer rod 1202, and the supporting spring 1204 is stretched, thereby ensuring the stability of the buffer cylinder 901 and the connecting block 902, and preventing the fluid from impacting the buffer cylinder 901 and the connecting block 902 and causing damage. The connecting block 902 drives the buffer rod 904, the buffer piston 903, the buffer spring 905 and the separation assembly 10 to move forward until the connecting plate 1001 and the separation head 1002 extend out of the valve core 4;

[0046] When the fluid impacts, the fluid first passes through the separation head 1002 and the separation plate 1004, so that the fluid is separated. Under the action of the through hole 1003, the fluid flows, realizing the idea of ​​breaking the whole into parts, avoiding the overall force of the fluid on the valve core 4, reducing the overall impact of the fluid, and the fluid converges in the valve core 4 and flows downstream. At the same time, when the fluid impacts the separation head 1002 and the connecting plate 1001, an impact force is generated, so that the impact force acts on the buffer rod 904. At this time, the buffer spring 905 is compressed, and the buffer rod 90 4 drives the buffer piston 903 to move in the buffer cylinder 901, thereby buffering the impact force. The gas in the buffer cylinder 901 enters the energy-absorbing cylinder 1301 through the inlet pipe 1303 and the outlet pipe 1302. The inlet pipe 1303 and the outlet pipe 1302 have different diameters, which realizes the conversion and release of the impact force. At the same time, the buffer piston 903 generates heat and releases it into the fluid, further reducing the impact force, thereby greatly reducing the impact effect, effectively reducing the impact of the fluid on the valve core 4, and reducing the wear of the valve core 4 when the valve core 4 is in the open state;

[0047] Since the fluid will flow back at the moment of closing the valve core 4, the fluid will generate a backflow force on the valve core 4 at this time. According to the above control principle, the threaded rod 503 is rotated in the opposite direction to force the separation head 1002, the connecting plate 1001 and the separation plate 1004 to move into the valve core 4, which is convenient for the subsequent closing of the valve core 4. At the same time, the separation head 1002, the connecting plate 1001 and the separation plate 1004 have an obstructive effect on the fluid, thereby reducing the flow rate of the fluid. When closing the valve core 4, the valve stem 3 is rotated to force the valve core 4 to be disconnected from the housing 1. Since the flow rate is reduced, the backflow force is reduced, further reducing the impact effect of the fluid on the valve core 4, and greatly improving the wear resistance of the valve core 4.

[0048] When the valve core 4 is disconnected from the housing 1, that is, the valve core 4 is in the closed state, when the fluid passes through the valve core 4, it will impact the side of the valve core 4, forcing the valve core 4 to swing back and forth, causing wear on the valve core 4 and corresponding parts. Similarly, the operating threaded rod 503 is rotated, and under the action of the oil storage cylinder 501, the operating threaded rod 503 drives the operating piston 502 to move downward, and the operating piston 502 compresses the hydraulic oil in the oil storage cylinder 501, so that the hydraulic oil drives the pushing piston 601 to move, and the pushing piston 601 drives the pushing rod 602 to move, so that the pushing rod 602 drives the connecting rod 801 to move, and the connecting rod 801 drives the transmission spur rack 802 to move downward, and the transmission spur rack 802 drives the transmission gear 803 to rotate, and the rotation of the transmission gear 803 drives the adjusting threaded rod 701 to rotate, and the adjusting threaded rod 701 drives the threaded sleeve 702 to displace, so that the threaded sleeve 702 drives the installation rod 703 to displace, and the installation rod 703 drives the buffer cylinder 901 and the connecting block 902 to move forward. At this time, the support rod 1101 moves along, and the support rod 1101 drives the sliding block 1102 to slide, and the sliding spring 1103 is compressed. At the same time, the connecting block 902 drives the support block 1201 to move, so that the support block 1201 drives the support inner rod 1203 to move in the support outer rod 1202, and the support spring 1204 is stretched, thereby ensuring the stability of the buffer cylinder 901 and the connecting block 902, and preventing the fluid from impacting the buffer cylinder 901 and the connecting block 902 and causing damage. The connecting block 902 drives the buffer rod 904, the buffer piston 903, the buffer spring 905 and the separation assembly 10 to move forward until the separation head 1002 contacts the inner wall of the shell 1. Under the action of the separation assembly 10 and the buffer assembly 9, and under the sealing action of the sealing ring, the valve core 4 is supported in multiple directions, thereby improving the stability of the valve core 4. When the fluid impacts, the improved stability of the valve core 4 greatly reduces the shaking degree of the valve core 4, thereby further reducing the wear of the valve core 4 in the closed state.

[0049] On the one hand, when the valve core 4 is in the open state, this solution can achieve a separation and buffering effect on the fluid, greatly reduce the impact force on the valve core 4, and effectively reduce the wear on the valve core 4; on the other hand, when the valve core 4 is in the closed state, it can significantly improve the stability of the valve core 4, reduce the shaking degree of the valve core 4, further reduce the wear of the valve core 4 and corresponding parts, reduce the wear degree of the ball valve, greatly improve the wear resistance, improve the sealing ability of the ball valve, and thus increase the service life of the ball valve.

[0050] This device can improve the wear resistance, and during use, the ball valve can be regularly inspected and repaired, and the internal components can be inspected and repaired simultaneously, and abnormal components can be replaced, which greatly reduces the number of replacement times of the ball valve. Obviously, the cost of replacing the internal components is less than the cost of replacing the ball valve, which saves costs and is conducive to controlling corporate costs.

[0051] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A ball valve with wear-resistant function, characterized in that: The invention comprises a housing (1), a mounting seat (2) is provided on the housing (1), a valve stem (3) is connected to a bearing on the mounting seat (2), a valve core (4) for controlling the flow of fluid is provided on the valve stem (3) and is located inside the housing (1), a sealing ring is provided between the housing (1) and the valve core (4), an operating component (5) is provided on the valve stem (3), a pushing component (6) penetrating the valve core (4) is provided at the output end of the operating component (5), an adjusting component (7) is provided inside the valve core (4), a transmission component (8) is provided between the adjusting component (7) and the pushing component (6), a buffer component (9) is provided on the adjusting component (7), a separation component (10) adapted to the valve core (4) is provided at the output end of the buffer component (9), and a sliding component is provided between the buffer component (9) and the valve core (4). (11) and a support assembly (12), the sliding assembly (11) and the support assembly (12) form a support for the separation assembly (10), and the buffer assembly (9) is provided with an energy absorption assembly (13); wherein, when the valve core (4) is in an open state, the movement of the operating assembly (5) is used to force the separation assembly (10) to extend out of the valve core (4), and when the fluid impacts the valve core (4), the separation assembly (10) separates the impact of the fluid, and the buffer assembly (9) buffers the fluid to reduce the impact of the fluid on the valve core (4); when the valve core (4) is in a closed state, the movement of the operating assembly (5) is used to force the separation assembly (10) to contact the housing (1), and when the fluid impacts the side of the valve core (4), the stability of the valve core (4) is ensured, thereby reducing the wear of the valve core (4).

2. A ball valve with wear-resistant function according to claim 1, characterized in that: The operating assembly (5) comprises an oil storage cylinder (501) arranged on the valve stem (3), the oil storage cylinder (501) passing through the valve stem (3), hydraulic oil being contained in the oil storage cylinder (501), an operating piston (502) being arranged in the oil storage cylinder (501), an operating threaded rod (503) being connected to a bearing on the operating piston (502), and the operating threaded rod (503) threadably passing through the oil storage cylinder (501).

3. A ball valve with wear-resistant function according to claim 2, characterized in that: The pushing assembly (6) includes a pushing piston (601) arranged in the oil storage cylinder (501), a pushing rod (602) penetrating the oil storage cylinder (501) and the valve core (4) is provided on the pushing piston (601), and a pushing spring (603) sleeved on the outer ring of the pushing rod (602) is provided between the pushing piston (601) and the oil storage cylinder (501).

4. The wear-resistant ball valve according to claim 3, characterized in that: The adjusting assembly (7) comprises an adjusting threaded rod (701) connected to the inside of the valve core (4) by a bearing, a threaded sleeve (702) being threadedly connected to the adjusting threaded rod (701), the adjusting threaded rod (701) being threaded through the threaded sleeve (702), a mounting rod (703) being provided on the threaded sleeve (702), and the buffer assembly (9) being provided on the mounting rod (703).

5. The wear-resistant ball valve according to claim 4, characterized in that: The transmission assembly (8) comprises a connecting rod (801) arranged on the pushing rod (602), a transmission spur rack (802) being arranged on the connecting rod (801), and a transmission gear (803) meshing with the transmission spur rack (802) being arranged on the adjusting threaded rod (701).

6. The wear-resistant ball valve according to claim 4, characterized in that: The buffer assembly (9) includes a buffer cylinder (901) arranged on the mounting rod (703), a connecting block (902) arranged on the buffer cylinder (901), a buffer piston (903) arranged in the buffer cylinder (901), a buffer rod (904) penetrating the buffer cylinder (901) and the connecting block (902) arranged on the buffer piston (903), the separation assembly (10) arranged on the buffer rod (904), and a buffer spring (905) sleeved on the outer ring of the buffer rod (904) arranged between the separation assembly (10) and the connecting block (902).

7. The wear-resistant ball valve according to claim 6, characterized in that: The separation assembly (10) includes a connecting plate (1001) arranged on the buffer rod (904), the free end of the buffer spring (905) is connected to the connecting plate (1001), a separation head (1002) is provided on the connecting plate (1001), through holes (1003) are provided on the connecting plate (1001) and the separation head (1002), and a separation plate (1004) for separating fluids is provided on the connecting plate (1001).

8. The wear-resistant ball valve according to claim 6, characterized in that: The sliding assembly (11) comprises a support rod (1101) arranged on the buffer cylinder (901), a sliding block (1102) penetrating the valve core (4) is arranged on the support rod (1101), and a sliding spring (1103) is arranged between the sliding block (1102) and the valve core (4).

9. The wear-resistant ball valve according to claim 6, characterized in that: The support assembly (12) includes a support block (1201) hinged on the connecting block (902), a support outer rod (1202) hinged on the inner wall of the valve core (4), a support inner rod (1203) hinged on the support block (1201) and inserted into the support outer rod (1202), and a support spring (1204) sleeved on the outer ring of the support inner rod (1203) is provided between the support block (1201) and the support outer rod (1202).

10. The wear-resistant ball valve according to claim 6, characterized in that: The energy absorbing component (13) comprises an energy absorbing cylinder (1301) arranged on the buffer cylinder (901), an air outlet pipe (1302) and an air inlet pipe (1303) being arranged on the energy absorbing cylinder (1301), and both the air outlet pipe (1302) and the air inlet pipe (1303) are in communication with the buffer cylinder (901).

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