Integrated flow regulating valve adopting cone valve core composite structure

Abstract

The invention relates to the technical field of flow regulating valves, and discloses an integrated flow regulating valve adopting a cone valve core composite structure, which comprises a valve rod, a thread head is arranged at the bottom end of the valve rod, a valve core is in threaded connection with the outer wall of the thread head, an anti-rotation structure is arranged at the joint of the valve rod and the valve core, and the anti-rotation structure comprises a main pin penetrating through the valve rod and the valve core. Redundant pins are symmetrically arranged on the two sides of the main pin, the central axis of the main pin and the central axis of the redundant pins are designed in an equidistant crossed mode, the bottom end of the valve element is inserted into the valve seat, and the anti-rotation structure further comprises wave springs elastically connected with the outer walls of the redundant pins. An anti-rotation structure is arranged, after the main pin is broken, the redundant pin can instantly take the anti-rotation function, relative rotation of the valve element and the valve rod is avoided, and it is guaranteed that the adjusting precision of the valve is not affected; due to the layout design of the triangular support, force transmission is more uniform, local stress concentration is reduced, and the service life of core components such as the valve element and the valve rod is prolonged.

Description

Technical Field

[0001] This invention relates to the field of flow control valve technology, and specifically to an integrated flow control valve employing a cone valve core composite structure. Background Technology

[0002] An integrated flow control valve is an intelligent valve that integrates measurement, display, and regulation (control) functions into a single valve body. It uses a built-in flow sensor to monitor the flow rate of the medium passing through the valve in real time and transmits this signal to a built-in intelligent controller. The controller compares the monitored flow rate value with the user-preset flow rate value and then automatically adjusts the valve core opening via a drive device, thereby stabilizing the actual flow rate at the set value, forming a complete closed-loop control circuit. The cone valve core of the flow control valve typically adopts a composite structure, consisting of a valve stem responsible for transmitting the force of the actuator and a valve core head with a conical sealing surface that directly regulates the flow rate and provides a seal.

[0003] In existing technologies, the valve stem and valve core are threaded together. To further prevent loosening, a pin is driven laterally to prevent relative rotation between the valve core and the valve stem. However, under extreme conditions (high pressure differential, high frequency, strong corrosion, high temperature thermal cycling), the pin, as the only anti-rotation component, will bear enormous alternating shear stress, leading to sudden brittle fracture of the pin without warning. At the moment of pin fracture, the internal mechanical balance of the valve is completely disrupted. The direct consequence is that the rigid torque transmission path between the valve core and the valve stem is cut off, transforming them from a stable, integrated state to a dangerous "quasi-connected" state. Under the impact of asymmetric fluid, the valve core will immediately experience slight rotation and oscillation, causing abnormal mechanical vibration and knocking sounds. Ultimately, this causes the valve core to detach and be swept into the pipeline by high-speed fluid, leading to catastrophic accidents such as equipment damage, media leakage, and even system shutdown. Summary of the Invention

[0004] To address the aforementioned shortcomings of existing technologies, this invention provides an integrated flow regulating valve employing a cone valve core composite structure. This effectively solves the problem in existing technologies where the pin, as the sole anti-rotation component, can lead to fatigue fracture, resulting in valve core connection instability, uncontrolled vibration, and valve core detachment.

[0005] To achieve the above objectives, the present invention provides the following technical solution: This invention provides an integrated flow regulating valve employing a cone valve core composite structure, comprising: A valve stem, the bottom end of which is provided with a threaded head, and a valve core is threadedly connected to the outer wall of the threaded head. An anti-rotation structure is provided at the connection between the valve stem and the valve core. The anti-rotation structure includes a main pin that penetrates the valve stem and the valve core. Redundant pins are symmetrically arranged on both sides of the main pin. The central axes of the main pin and the redundant pins are designed to be equidistantly intersecting. A valve seat is provided, with the bottom end of the valve core inserted into the valve seat and a warning light installed on the part of the valve stem protruding from the valve seat; The anti-rotation structure also includes a wave spring that is elastically connected to the outer wall of the redundant pin.

[0006] Furthermore, a master pin hole is provided in the middle of the threaded head, and the inner wall of the master pin hole and the outer wall of the master pin are interference-fitted. Two sets of channels are symmetrically provided on the outer surface of the threaded head with the master pin hole as the axis. Each set of channels consists of two inclined side pin holes.

[0007] Furthermore, a second master pin hole is provided in the middle of the valve core, and the central axis of the second master pin hole is aligned with the central axis of the first master pin hole. Two sets of channels are symmetrically provided on the outer wall of the valve core with the second master pin hole as the axis. Each set of channels consists of two inclined side pin holes, and the central axis of the first side pin hole is aligned with the central axis of the second side pin hole.

[0008] Furthermore, the second side pin hole and the first side pin hole together form a side pin hole channel, the redundant pin is inserted into the side pin hole channel, the first side pin hole has a groove circumferentially arranged inside, the second side pin hole has a groove circumferentially arranged inside, and the second groove and the first groove together form a slot.

[0009] Furthermore, a sensor is provided on the inner wall of the first groove near the end of the second groove, and a sensor is provided on the inner wall of the second groove near the end of the first groove. The second groove and the sensor are electrically connected to a warning light via a system.

[0010] Furthermore, a boss is fixed at equal intervals on the outer surface of the redundant pin shaft at the connection between the groove two and the sensing element two. The side of the boss adopts a wedge design, and a sealing block is provided on the side of the redundant pin that fits into the side pin hole two.

[0011] Furthermore, the side pin hole adopts a coaxial stepped design, and the wave spring is located at the end of the side pin hole away from the valve core. The inside of the wave spring is elastically connected to the outside of the redundant pin.

[0012] The technical solution provided by this invention has the following advantages compared with the prior art: This invention features an anti-rotation structure. If the main pin breaks, the redundant pin can instantly take over the anti-rotation function, preventing relative rotation between the valve core and the valve stem and ensuring that the valve adjustment accuracy is not affected. The triangular support layout design makes the force transmission more uniform, reduces local stress concentration, and extends the service life of core components such as the valve core and valve stem.

[0013] This invention incorporates a wave spring that provides preload to the redundant pin, maintaining a small gap between it and the pin hole. In high-temperature environments, when components thermally expand, the wave spring compensates for the gap through changes in compression, preventing the redundant pin from jamming with the pin hole. Simultaneously, the redundant pin is made of high-temperature resistant material, which, together with the sealing block, reduces the erosion of internal components by high-temperature media, thereby improving the high-temperature stability of the system.

[0014] This invention features a side pin hole channel, allowing for easy replacement of the main pin or redundant pins without disassembling the valve core and stem structure. Disassembly and assembly can be completed simply by using the side pin hole channel, significantly reducing maintenance time. Furthermore, this design avoids loss of conical surface fit precision due to frequent disassembly, ensuring the valve's sealing performance over long-term use. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present invention. Figure 2 This is a schematic diagram of the valve stem structure according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the valve core structure according to an embodiment of the present invention; Figure 4 This is a schematic cross-sectional view of the anti-rotation structure according to an embodiment of the present invention; Figure 5 This is a schematic cross-sectional view of the redundant pin structure according to an embodiment of the present invention; Figure 6 This is a schematic diagram of the redundant pin structure according to an embodiment of the present invention; Figure 7 This is a schematic diagram of the structure of the first and second master pin holes according to an embodiment of the present invention.

[0017] The labels in the diagram represent: 1. Valve stem; 11. Threaded head; 12. Main pin hole one; 13. Side pin hole one; 131. Groove one; 132. Sensor one; 2. Valve core; 22. Main pin hole two; 23. Side pin hole two; 231. Groove two; 232. Sensor two; 3. Anti-rotation structure; 31. Main pin; 32. Redundant pin; 322. Boss; 323. Sealing block; 33. Wave spring; 4. Valve seat; 5. Warning light. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0019] The present invention will be further described below with reference to embodiments. Example

[0020] Please see Figures 1-7 The present invention provides a technical solution: Traditional designs often employ a single pin for anti-rotation, with a fixed clearance between the pin and the pin hole. Under high-frequency vibration or fluid impact, the pin is prone to brittle fracture due to stress concentration. Furthermore, after a single pin breaks, the valve core and stem assembly loses its constraint, making it highly susceptible to relative rotation, leading to loss of adjustment accuracy, and even safety accidents such as valve core detachment and media leakage. Moreover, traditional pins and pin holes are mostly fixed connections; replacing a pin requires disassembling the entire valve core and stem assembly, which is not only time-consuming but also damages the conical surface fit accuracy during disassembly and reassembly, affecting the valve's subsequent sealing performance and adjustment accuracy. Pin breakage is often diagnosed indirectly through abnormal valve adjustment or media leakage, resulting in delayed fault detection and increased difficulty and cost of emergency repairs. Some designs with early warning functions suffer from false alarms and missed alarms because the sensing components are in direct contact with the media and are susceptible to corrosion or vibration.

[0021] refer to Figure 1 The flow regulating valve includes a valve stem 1 and a valve seat 4. The bottom end of the valve stem 1 is provided with a threaded head 11. The outer wall of the threaded head 11 is threaded with a valve core 2. An anti-rotation structure 3 is provided at the connection between the valve stem 1 and the valve core 2. The bottom end of the valve core 2 is inserted into the valve seat 4. A warning light 5 is provided at the part of the valve stem 1 that protrudes from the valve seat 4. refer to Figure 1 and Figure 3The anti-rotation structure 3 includes a main pin 31 that passes through the valve stem 1 and the valve core 2. Redundant pins 32 are symmetrically arranged on both sides of the main pin 31. The central axes of the main pin 31 and the redundant pins 32 are designed to be equidistantly intersecting. The anti-rotation structure 3 also includes a wave spring 33 that is elastically connected to the outer wall of the redundant pins 32. The anti-rotation structure 3 is the core innovation of the entire design, adopting a composite redundancy layout of "1 main and 2 backup". The main pin 31 passes through the connection between the valve stem 1 and the valve core 2, forming the main anti-rotation support; the redundant pins 32 symmetrically distributed on both sides constitute the backup anti-rotation system. The central axes of the main pin 31 and the redundant pins 32 are equidistantly intersecting. This layout not only avoids overload of a single pin, but also ensures the coaxiality of the valve core 2 and the valve stem 1 through the triangular support principle, preventing the valve core 2 from wearing unevenly due to unilateral force.

[0022] refer to Figure 1 and Figure 2 The threaded head 11 has a main pin hole 12 in the middle. The inner wall of the main pin hole 12 and the outer wall of the main pin 31 are interference fit. The outer surface of the threaded head 11 has two sets of channels 1 symmetrically opened with the main pin hole 12 as the axis. Each set of channels 1 consists of two inclined side pin holes 13. refer to Figure 1 and Figure 3 The valve core 2 has a main pin hole 22 in the middle. The central axis of the main pin hole 22 is aligned with the central axis of the main pin hole 12. The outer wall of the valve core 2 has two sets of channels 2 symmetrically opened with the main pin hole 22 as the axis. Each set of channels 2 consists of two inclined side pin holes 23. The central axis of the side pin hole 13 is aligned with the central axis of the side pin hole 23. In the fitting design of the pin hole and pin body, a composite structure of "stepped channel + inclined layout" is adopted. A main pin hole 12 is opened in the middle of the threaded head 11 of the valve stem 1, which is interference-fitted with the main pin 31 to ensure that the main pin 31 can stably transmit torque under normal working conditions. Two sets of channels 1 are symmetrically distributed on the outer surface of the threaded head 11 with the main pin hole 12 as the axis. Each set of channels 1 consists of two inclined side pin holes 13. Correspondingly, a main pin hole 22 is opened in the middle of the valve core 2, whose central axis is perfectly aligned with the main pin hole 12. Two sets of channels 2 are also symmetrically distributed on the outer wall of the valve core 2 with the main pin hole 22 as the axis. Each set of channels 2 consists of two inclined side pin holes 23, and the central axes of the side pin holes 13 and 23 are precisely aligned, together forming the installation channel for the redundant pin 32. This inclined design of the side pin hole channel allows the redundant pin 32 to simultaneously withstand the combined radial and axial forces, avoiding pin body breakage caused by force in only one direction.

[0023] refer to Figure 4 and Figure 5The side pin hole 13 adopts a coaxial stepped design. The wave spring 33 is located at the end of the side pin hole 13 away from the valve core 2. The inside of the wave spring 33 is elastically connected to the outside of the redundant pin 32. This design allows the wave spring 33 to provide continuous preload to the redundant pin 32, ensuring that the redundant pin 32 and the pin hole maintain a small gap under normal working conditions and do not participate in the force. At the same time, the elastic characteristics of the wave spring 33 can compensate for the thermal expansion under high temperature environment and prevent the redundant pin 32 from getting stuck in the pin hole.

[0024] refer to Figure 4 and Figure 7 Side pin hole 23 and side pin hole 13 together form a side pin hole channel. Redundant pin 32 is inserted into the side pin hole channel. Side pin hole 13 has a groove 131 circumferentially arranged inside, and side pin hole 23 has a groove 231 circumferentially arranged inside. Groove 231 and groove 131 together form a slot. Sensor 132 is arranged on the inner wall of groove 131 near groove 231, and sensor 232 is arranged on the inner wall of groove 231 near groove 131. Groove 231 and sensor 232 are electrically connected to warning light 5 through the system. When main pin 31 breaks or redundant pin 32 is displaced, boss 322 will trigger sensor 132 and sensor 232, thereby activating warning light 5 to realize immediate fault reminder.

[0025] The redundant pin 32 has a boss 322 fixed at an equal distance on the outer surface of the circular shaft at the connection between the groove 231 and the sensing element 232. The side of the boss 322 adopts a wedge design, which can reduce the contact area with the pin hole under normal working conditions, reduce friction loss, and quickly fit with the pin hole wall after the main pin 31 breaks, so as to realize the transmission of force. A sealing block 323 is provided on the side of the redundant pin 32 that fits with the side pin hole 23, which can effectively prevent the medium from seeping into the side pin hole channel and avoid corrosion of internal components.

[0026] In terms of high-temperature adaptability, the gap between traditional pins and pin holes cannot compensate for thermal expansion. Under high-temperature conditions, the thermal expansion of metal parts can easily cause the pins and pin holes to jam, causing the redundant structure to fail. At the same time, high temperature will also accelerate the wear of pins and pin holes, shortening their service life.

[0027] The redundant "1 main, 2 backup" layout fundamentally solves the risk of a single pin breaking. The main pin 31 undertakes the main anti-rotation function, while the redundant pin 32 serves as a backup system, immediately taking over the load after the main pin 31 breaks. The equidistant, intersecting distribution of the main pin 31 and the redundant pin 32 distributes the torque evenly through the triangular support principle, avoiding uneven wear of the valve core 2 caused by unilateral force and extending the service life of the valve core 2 and valve seat 4.

[0028] The inclined design and stepped structure of the side pin hole channel enable rapid maintenance. When replacing the main pin 31 or redundant pin 32, it is not necessary to disassemble the overall structure of the valve core 2 and valve stem 1; disassembly and assembly can be completed simply through the side pin hole channel, significantly shortening maintenance time. At the same time, this design avoids the loss of conical surface fit accuracy caused by frequent disassembly, ensuring the sealing performance of the valve for long-term use.

[0029] The real-time performance and accuracy of fault warning are achieved through the linkage mechanism between the sensor and the warning light 5. Sensor 1 132 and sensor 2 232 are respectively arranged in the slots of side pin hole 13 and side pin hole 23, which do not directly contact the medium, reducing the impact of corrosion and wear. When the main pin 31 breaks or the redundant pin 32 is displaced, the boss 322 will trigger the sensor, causing the warning light 5 to light up in time, realizing immediate fault warning and facilitating rapid response by operators.

[0030] In terms of high-temperature adaptability, the elastic preload design of the wave spring 33 plays a crucial role. Under normal operating conditions, the wave spring 33 provides preload force to the redundant pin 32, maintaining a small gap between it and the pin hole. In high-temperature environments, when components thermally expand, the wave spring 33 compensates for the gap through changes in compression, preventing the redundant pin 32 from jamming with the pin hole. At the same time, the redundant pin 32 is made of high-temperature resistant material, which, together with the barrier effect of the sealing block 323, reduces the corrosion of internal components by high-temperature media and improves the high-temperature stability of the system.

[0031] The interlocking distribution of the main pin 31 and the redundant pin 32 forms complementary support. Even if the main pin 31 breaks unexpectedly, the redundant pin 32 can take over the anti-rotation function in a very short time, preventing relative rotation between the valve core 2 and the valve stem 1 and ensuring that the valve adjustment accuracy remains intact. The boss 322 of the redundant pin 32 adopts a wedge design, which further optimizes the force transmission efficiency, ensures that it can stably bear the load when the redundant function is triggered, and reduces secondary damage caused by stress concentration.

[0032] In terms of environmental adaptability, the design fully considers the impact of extreme working conditions such as high temperature and vibration. The elastic characteristics of the wave spring 33 can dynamically compensate for thermal expansion, allowing the redundant pin 32 to maintain a reasonable gap over a wide temperature range, avoiding both high-temperature jamming and low-temperature loosening. The inclined side pin hole channel allows the redundant pin 32 to withstand both radial and axial forces simultaneously. Combined with the fitting design of the pin hole and pin body, this significantly reduces the risk of fatigue damage under high-frequency vibration. The sealing block 323 effectively blocks media intrusion, protects internal components from corrosion, and enables the valve to adapt to multi-media and highly corrosive working environments.

[0033] The independent layout of the side pin hole channel allows for pin replacement without disassembling the core mating structure of valve core 2 and valve stem 1, reducing maintenance steps and operational difficulty. The precise alignment design of the main pin hole and side pin hole ensures accurate component positioning during disassembly and assembly, avoiding secondary assembly errors. This "disassembly-free maintenance" mode not only shortens downtime but also reduces the risk of performance degradation due to improper maintenance.

[0034] In terms of safety, the design of the sensor-based warning system enables "early detection and early handling" of faults. The non-contact installation of sensor 132 and sensor 232 reduces the possibility of false alarms, while the immediate response of the warning light 5 provides operators with a clear fault signal, avoiding safety accidents caused by delayed fault detection. Meanwhile, the material compatibility design of the redundant pin 32 and the main pin 31 reduces the probability of simultaneous failure of multiple components, further enhancing the system's safety redundancy.

[0035] During installation, first connect the threaded end 11 at the bottom of the valve stem 1 to the valve core 2, achieving initial fixation through threaded engagement. At this time, it is necessary to ensure that the conical surfaces of the valve stem 1 and the valve core 2 fit tightly to ensure basic sealing performance. Then, install the anti-rotation structure 3 by inserting the main pin 31 into the main pin hole 12 and the main pin hole 22, using an interference fit to achieve rigid anti-rotation constraint between the valve stem 1 and the valve core 2. Next, insert the redundant pin 32 into the channel formed by the side pin hole 13 and the side pin hole 23, ensuring that the outer wall of the redundant pin 32 is in close contact with the wave spring 33. At this time, the wave spring 33 is in a slightly pre-compressed state, maintaining a small gap between the redundant pin 32 and the pin hole.

[0036] During normal operation, the main pin 31 performs the primary anti-rotation function, transmitting the torque of the valve stem 1 to the valve core 2 through an interference fit to achieve flow regulation. The redundant pin 32, under the preload of the wave spring 33, maintains a small gap with the side pin hole channel and does not participate in the load-bearing process, remaining in a standby state. At this time, sensor 132 and sensor 232 are not triggered, and the warning light 5 is off, indicating that the system is operating normally.

[0037] Under fluid pressure and vibration, the elastic properties of the wave spring 33 will buffer the small displacement of the redundant pin 32 and prevent it from rubbing against the pin hole. The sealing block 323 will block the medium from entering the side pin hole channel and protect the sensing element and the wave spring 33 from corrosion.

[0038] When the main pin 31 breaks due to fatigue or impact, the valve core 2 and valve stem 1 lose their main constraint and undergo slight relative rotation under fluid pressure. At this time, the redundant pin 32 moves closer to the pin hole wall under the thrust of the wave spring 33, and the wedge structure of the boss 322 makes it quickly fit against the inner wall of the second side pin hole 23 and the first side pin hole 13, thus performing the anti-rotation function and preventing further relative rotation between the valve core 2 and valve stem 1.

[0039] Simultaneously, the boss 322 triggers sensors 132 and 232, and the sensing signal is transmitted to the warning light 5 through the system, causing the warning light 5 to illuminate, indicating to the operator that the main pin 31 has broken and the redundant system has been activated. At this time, the valve can still maintain basic regulating functions, but a shutdown maintenance must be arranged.

[0040] Upon receiving the warning signal from warning light 5, the operator must stop the machine for maintenance. During maintenance, it is not necessary to disassemble the overall structure of valve stem 1 and valve core 2. Only the broken main pin 31 and redundant pin 32 need to be removed through the side pin hole channel and replaced with new parts. During the replacement process, the elastic performance of wave spring 33 needs to be checked. If elasticity decay is found, it needs to be replaced simultaneously. At the same time, impurities in the side pin hole channel should be cleaned to ensure that the newly installed pin body fits well with the pin hole.

[0041] After maintenance is completed, repeat the inspection steps from the debugging phase to confirm that the anti-rotation structure 3 and the sensor warning system are functioning normally before restarting the valve.

[0042] In addition to the core issues mentioned above, this design also solves many detailed problems that exist in the practical application of traditional flow control valves, further improving the overall performance of the system.

[0043] Firstly, it solves the problem of "micro-rotation" under vibration. In traditional valves, even if the pin does not break under high-frequency vibration, the valve core and valve stem assembly may still experience slight relative rotation, leading to drift in adjustment accuracy. In this design, the interference fit of the main pin 31 and the pre-tight clearance fit of the redundant pin 32 form a double constraint. Combined with the shear resistance of the inclined side pin hole channel, this effectively suppresses micro-rotation caused by vibration, ensuring long-term stability of adjustment accuracy.

[0044] Secondly, it solves the problem of "cross-contamination" under multi-media conditions. Traditional valves' pinhole channels are prone to mixing of different media due to poor sealing, affecting process stability. The sealing block 323 in this design, in conjunction with the side pinhole channel, forms a reliable media isolation barrier, preventing cross-permeation of media from different chambers and enabling the valve to adapt to complex operating conditions involving multi-media switching.

[0045] Thirdly, it solves the "jamming" problem under low-temperature conditions. In low-temperature environments, the gap between the traditional redundant pin 32 and the pin hole is prone to increase due to material shrinkage, causing the redundant pin 32 to wobble and affecting triggering accuracy. The wave spring 33 in this design can still maintain a stable preload at low temperatures, compensate for gap changes, ensure the positional stability of the redundant pin 32 at low temperatures, and avoid jamming or triggering lag.

[0046] Fourth, it solves the problem of "lifespan degradation" of sensing components. In traditional designs, the lifespan of sensing components is often shortened due to contact with the medium or vibration wear. This design arranges sensor 132 and sensor 232 in the slot, away from the medium flow field and vibration source, reducing the impact of corrosion and wear, and extending the service life of the sensing system.

[0047] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. An integrated flow regulating valve employing a cone valve core composite structure, characterized in that, include: A valve stem (1) is provided with a threaded head (11) at the bottom end. A valve core (2) is threaded to the outer wall of the threaded head (11). An anti-rotation structure (3) is provided at the connection between the valve stem (1) and the valve core (2). The anti-rotation structure (3) includes a main pin (31) that passes through the valve stem (1) and the valve core (2). Redundant pins (32) are symmetrically arranged on both sides of the main pin (31). The central axes of the main pin (31) and the redundant pins (32) are designed to be equidistantly intersecting. Valve seat (4), the bottom end of the valve core (2) is inserted into the valve seat (4), and a warning light (5) is provided on the part of the valve stem (1) that protrudes from the valve seat (4). The anti-rotation structure (3) also includes a wave spring (33) that is elastically connected to the outer wall of the redundant pin (32).

2. The integrated flow regulating valve with a cone valve core composite structure according to claim 1, characterized in that: The threaded head (11) has a main pin hole (12) in the middle. The inner wall of the main pin hole (12) and the outer wall of the main pin (31) are interference-fitted. The outer surface of the threaded head (11) has two sets of channels symmetrically arranged with the main pin hole (12) as the axis. Each set of channels consists of two inclined side pin holes (13).

3. The integrated flow regulating valve with a cone valve core composite structure according to claim 2, characterized in that: The valve core (2) has a main pin hole 2 (22) in the middle. The central axis of the main pin hole 2 (22) is aligned with the central axis of the main pin hole 1 (12). The outer wall of the valve core (2) has two sets of channels 2 symmetrically arranged with the main pin hole 2 (22) as the axis. Each set of channels 2 consists of two inclined side pin holes 2 (23). The central axis of the side pin hole 1 (13) is aligned with the central axis of the side pin hole 2 (23).

4. The integrated flow regulating valve with a cone valve core composite structure according to claim 3, characterized in that: The second side pin hole (23) and the first side pin hole (13) together form a side pin hole channel. The redundant pin (32) is inserted into the side pin hole channel. The first side pin hole (13) has a groove (131) arranged in the circumferential direction. The second side pin hole (23) has a groove (231) arranged in the circumferential direction. The second groove (231) and the first groove (131) together form a slot.

5. The integrated flow regulating valve with a cone valve core composite structure according to claim 4, characterized in that: A sensor (132) is provided on the inner wall of the first groove (131) near the second groove (231), and a sensor (232) is provided on the inner wall of the second groove (231) near the first groove (131). The second groove (231) and the sensor (232) are electrically connected to a warning light (5) through the system.

6. The integrated flow regulating valve with a cone valve core composite structure according to claim 5, characterized in that: The redundant pin (32) has a boss (322) fixed at an equal distance from the groove two (231) and the sensing element two (232) on the outer surface of the circular shaft. The side of the boss (322) adopts a wedge design. A sealing block (323) is provided on the side of the redundant pin (32) that is in contact with the side pin hole two (23).

7. The integrated flow regulating valve with a cone valve core composite structure according to claim 6, characterized in that: The side pin hole (13) adopts a coaxial stepped design. The wave spring (33) is located at the end of the side pin hole (13) away from the valve core (2). The inside of the wave spring (33) is elastically connected to the outside of the redundant pin (32).

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