Manual and automatic integrated coaxial automatic control regulating valve

Abstract

The utility model discloses the technical field of oxygen cabin valves, in particular to a manual-automatic coaxial automatic control regulating valve, which is characterized in that a coaxial speed reduction device is provided with a manual regulating shaft which penetrates through and is connected with a large-small double-layer gear, and a small gear of the large-small double-layer gear is connected with a planetary reduction gear assembly and an output planet carrier; a valve adjusting shaft of the quick-opening valve element is connected with the large-small double-layer gear to achieve linkage, and the valve adjusting shaft and the output planet carrier are connected in a clamped mode to achieve coaxial linkage and synchronous rotation. The automatic control circuit board is connected with and controls the gear motor device and drives the quick-opening valve element through meshing of the output gear, the transition gear, the large-small double-layer gear and the star reduction gear assembly. The valve element is inserted into the lower portion of the lower shell to achieve on-off state isolation of the input hole and the output hole. The automatic control regulating valve adopts coaxial and parallel shaft arrangement, is compact in structure, light in weight, convenient to assemble and high in precision control, adopts the same speed reducing mechanism combination, realizes seamless switching of manual control and automatic control, is completely synchronous, and is mute and smooth in overall operation.

Description

Technical Field

[0001] The utility model relates to the technical field of hyperbaric oxygen chamber valves and the technical field of automatic valve control, in particular to a manual-automatic integrated automatic control valve. Background Art

[0002] The statements in this section are merely to provide background technology related to the present utility model disclosure and do not necessarily constitute prior art.

[0003] The pressurization or decompression of the hyperbaric oxygen chamber is a key link in the control of the oxygen chamber. During the pressurization or decompression process, the rate of pressurization and decompression must be strictly controlled to meet the set pressure requirements and relieve discomfort symptoms such as severe ear pain. The main components of the pressure increase and decrease control in the chamber are the pressurization valve and the decompression valve, including the intake flow control valve, the exhaust flow control valve and the corresponding control system.

[0004] Existing high-pressure oxygen intake and exhaust control valves are generally adjusted by a separate mechanical manual method, or a separate electric automatic adjustment, or a control method in which two independent systems, mechanical manual and automatic control, are used together. The main control indicators are the maximum pressure increase rate and the maximum pressure reduction rate.

[0005] When mechanical manual control is used, the equipment operators must receive professional training and accumulate necessary operating experience to control the valve opening. When a fixed valve opening or a fixed flow rate is used for control, the actual rise and fall of cabin pressure cannot be accurately controlled, and different operators will produce different results.

[0006] When electric automatic control is adopted, the solenoid valve is generally turned on and off. The flow rate and the rate of pressure increase and pressure reduction are controlled by controlling the time frequency of the on and off, thus forming an airflow pulse wave and reducing comfort.

[0007] Or when two independent control methods, mechanical manual and electric automatic, are applied at the same time, the system will become complex, difficult to operate, require higher professionalism, and will not be easy to operate.

[0008] Especially when equipment failure occurs, operation becomes more difficult and safety problems are likely to occur. There are also electric automatic regulating valves on the market, which generally cannot be synchronized with manual adjustment. They are large in size and suitable for industrial use, but not for hyperbaric oxygen chambers.

[0009] The existing valves mainly have the following technical problems:

[0010] 1. The existing mechanical manual control valve is large in size, has low manual control accuracy, requires high operating skills, and cannot be automatically controlled. Especially for the stop valve with thread adjustment, it is easy to cause locking if too much force is applied when closing.

[0011] 2. The frequent opening and closing of the existing electric automatic proportional valve will produce switching noise, and the pulse airflow will impact the cabin, which is likely to cause discomfort.

[0012] 3. The system controlled by a single electric valve is completely controlled by electronic automatic control. When a fault occurs, it is invisible and intangible, and cannot be intervened manually, which may cause safety hazards under special circumstances.

[0013] 4. When the air in the cabin needs to be renewed and the air is taken in and exhausted at the same time, various operations become more difficult.

[0014] Although in the prior art, Chinese patent CN201810687080.0 specifically discloses a manual-automatic control valve, including a reduction motor, a high-platform quick-opening valve, a gear set housing, a gear set cover and a three-stage reduction device, the three-stage reduction device includes a first-stage pinion shaft connected to the output shaft of the reduction motor, and a second-stage double-layer reduction gear set connected to the first-stage pinion shaft, and also includes a third-stage fan-shaped reduction gear fixed on the valve stem of the high-platform quick-opening valve; the first-stage pinion shaft passes through the arc-shaped groove of the third-stage fan-shaped reduction gear and extends to the outside of the gear set cover, and the first-stage pinion shaft is located at the outer part of the gear set cover to connect the manual valve head; the reduction motor and the high-platform quick-opening valve are connected to the single-chip microcomputer through the control circuit. The manual-automatic control valve has a compact structure, can display the opening, and has high opening precision control. The valve automatically runs lightly and smoothly without obvious noise. The damping is moderate and the hand feel is smooth when manually rotated.

[0015] However, the above-mentioned manual automatic control valve is relatively large in size, the teeth between the reduction gears of the three-stage reduction device are relatively large, the gear appearance is special, the upper and lower positioning holes of the gear shaft have high processing requirements, the gear processing volume is large, and the assembly is difficult. The requirements for the motor are relatively special, and a special hollow cup motor needs to be used, which is too expensive.

[0016] The problem that the utility model needs to solve is: how to further reduce the size of the valve, use standard gear parts as much as possible, integrate the control circuit, reduce circuit costs, and facilitate assembly and maintenance. Further improve the sampling rate of motor rotation, improve the valve core control accuracy, automatically collect pressure change data in the oxygen chamber, and quickly calculate and adjust the opening, closing and opening of the valve. It is more convenient to manually adjust the valve opening to ensure stability and durability in use. Utility Model Content

[0017] In order to overcome the deficiencies of the above-mentioned prior art, the utility model provides a control valve with a coaxial and parallel axis arrangement, compact structure, light weight, easy assembly, high precision control, and no problems such as motor stalling will occur during manual control. The performance is safe and stable. The manual and automatic mechanical structures of the control valve are fully integrated in design, and the same set of reduction mechanism is organically combined. Manual and automatic control can be seamlessly switched and fully synchronized. The overall operation is quiet and smooth, the damping is moderate during manual rotation, and the manual-automatic coaxial automatic control regulating valve has a smooth feel.

[0018] The technical solution adopted by the utility model is: a manual-automatic coaxial automatic control regulating valve, the automatic control regulating valve also includes:

[0019] A coaxial reduction gear, wherein the coaxial reduction gear is provided with a manual adjustment shaft, wherein the manual adjustment shaft penetrates and connects large and small double-layer gears, wherein the pinion of the large and small double-layer gears is used to connect the planetary reduction gear assembly and the output planet carrier; and

[0020] A quick-opening valve core, the quick-opening valve core is coaxially arranged with the large and small double-layer gears and the planetary reduction gear assembly, one end of the valve regulating shaft is provided with a regulating shaft concave structure / regulating shaft convex structure, the regulating shaft concave structure / regulating shaft convex structure is engaged and connected with the planetary carrier convex structure / planetary carrier concave structure of the output planetary carrier to achieve coaxial linkage and synchronous rotation, and the quick-opening valve core also has a valve core; and

[0021] A valve body shell, the valve body shell provides a lower shell and an upper shell cover for the coaxial reduction device and the quick-opening valve core to work; the lower part of the lower shell has threaded input holes and output holes on both sides, wherein the valve core is inserted into the lower part of the lower shell to isolate the on-off state of the input hole and the output hole; and

[0022] A reduction motor device, the reduction motor device is equipped with a motor, a transition gear meshing with the large gear of the large and small double-layer gears, and an output gear meshing with the transition gear, the output gear is connected to the upper end of the shaft of the motor, and the reduction motor device is also equipped with a reducer, a speed encoder and a terminal head; and

[0023] An automatic control circuit board is connected to the rotation speed encoder and the wiring head.

[0024] In the technical solution, the output planet carrier is configured so that when it rotates 90 degrees in the forward or reverse direction, the valve regulating shaft rotates 90 degrees synchronously, thereby achieving full opening or full closing of the quick-opening valve core.

[0025] In the technical solution, the quick-opening valve core is a ceramic valve core or a spherical valve core.

[0026] In the technical solution, the lower portion of the lower shell body, the input hole and the output hole form a "T" shape arrangement as a whole.

[0027] In this technical solution, the motor rotates synchronously with the speed encoder, and the motor is configured so that when it rotates one circle, the speed encoder synchronously outputs 2-16 encoding signals, thereby collecting the speed and rotation direction, and the automatic control circuit board automatically calculates the opening of the quick-opening valve core.

[0028] In the present technical solution, the top of the manual adjustment shaft is also connected to a bellows handwheel, and a mechanical counter is arranged inside the bellows handwheel. The counter is configured so that when the quick-opening valve core changes from fully closed to fully open, the counter rotates at least 2 circles.

[0029] In the present technical solution, the reduction ratio of the reducer of the reduction motor device is generally between 1:16 and 1:49.

[0030] In the technical solution, the motor is any one of a brushless DC motor, a brushed DC motor and a coreless DC motor.

[0031] In this technical solution, the speed encoder is installed at the lower end of the motor.

[0032] In the technical solution, the outer side of the planetary reduction gear assembly is also covered with an outer gear ring meshing with the planetary reduction gear assembly.

[0033] In this technical solution, the automatic control circuit board is provided with a pressurizing valve and a reducing valve control circuit respectively, and the corresponding pressurizing valve and reducing valve are connected to the motor power supply and the speed encoder respectively. The automatic control circuit board is connected to the single-chip processor and the encoder through a DC / DC module to power them.

[0034] Compared with the prior art, the beneficial effects of the utility model are:

[0035] 1. The control valve adopts coaxial and parallel axis arrangement, with compact structure, light weight, easy assembly, high precision control, and no problems such as motor stalling during manual control, with safe and stable performance.

[0036] 2. The manual and automatic mechanical structures of the control valve are fully integrated and organically combined with the same set of reduction mechanisms. Manual and automatic control switch seamlessly and are fully synchronized. The overall operation is quiet and smooth. The damping is moderate during manual rotation and the feel is smooth.

[0037] 3. Automatically collect the pressure change data in the oxygen chamber, quickly calculate and adjust the opening, closing and opening of the valve. The valve opening can also be adjusted manually at the same time. When the manual control exceeds the lifting and pressure standards, the valve opening can be automatically corrected. In special circumstances such as power outages, manual control can be completely switched.

[0038] 4. The encoder of the reduction motor provides multiple signal feedback to improve the overall precision control of the valve opening. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 It is a side sectional view of a manual-automatic coaxial automatic control regulating valve;

[0040] Figure 2 This is a front view of the manual-automatic coaxial automatic control regulating valve;

[0041] Figure 3 It is a side view of the manual-automatic coaxial automatic control regulating valve;

[0042] Figure 4 This is a front exploded view of the manual-automatic coaxial automatic control regulating valve speed reduction assembly;

[0043] Figure 5 It is a side exploded view of the manual-automatic coaxial automatic control regulating valve speed reduction assembly;

[0044] Figure 6 It is a side cross-sectional view of a manual-automatic coaxial automatic control regulating valve speed reduction assembly;

[0045] Figure 7 This is the schematic diagram of the automatic control circuit board of the manual-automatic coaxial automatic control regulating valve;

[0046] Among them: 100-coaxial reduction gear, 110-manual adjustment shaft, 120-large and small double-layer gears, 121-large gear, 122-small gear; 130-planetary reduction gear assembly, 131-planetary reduction gear, 132-outer gear ring, 133-output planet carrier, 1331-planet carrier convex structure / planet carrier concave structure;

[0047] 200-quick-opening valve core, 210-valve adjusting shaft, 211-adjusting shaft concave structure / adjusting shaft convex structure, 220-valve core;

[0048] 300-reduction motor, 301-motor, 302-reducer, 303-output gear, 304-transition gear, 305-speed encoder, 306-connection head;

[0049] 400-valve body shell, 401-lower shell, 402-upper shell cover, 403-input hole, 404-output hole;

[0050] 500-corrugated meter hand wheel, 501-counter;

[0051] 600-Automatic control circuit board. DETAILED DESCRIPTION

[0052] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0053] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the combination or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, in the description of the embodiments of the present invention, the device positional relationships such as "up", "down", "front", "back", "left", "right", etc. in all the drawings are based on the orientation or positional relationship shown in the drawings. Figure 1 As standard.

[0054] like Figure 1 As shown, the manual-automatic coaxial automatic control regulating valve, the automatic control regulating valve also includes a coaxial speed reduction device 100, a quick-opening valve core 200, a valve body housing 400, a speed reduction motor device 300 and an automatic control circuit board 600, wherein:

[0055] The coaxial reduction gear 100 is provided with a manual adjustment shaft 110, the manual adjustment shaft 110 penetrates and connects the large and small double-layer gears 120, and the pinion 122 of the large and small double-layer gears 120 is used to connect the planetary reduction gear assembly 130 and the output planet carrier 133;

[0056] The quick-opening valve core 200 has a valve regulating shaft 210 which is coaxially arranged and connected with the large and small double-layer gears 120 and the output planetary carrier 133 to realize linkage. One end of the valve regulating shaft 210 is provided with a regulating shaft concave structure / adjusting shaft convex structure 211. The regulating shaft concave structure / adjusting shaft convex structure 211 is engaged with the planetary carrier convex structure / planetary carrier concave structure 1331 of the output planetary carrier 133 to realize coaxial linkage and synchronous rotation. The quick-opening valve core 200 also has a valve core 220;

[0057] The valve body shell 400 provides a lower shell 401 and an upper shell cover 402 for the coaxial speed reducer 100 and the quick-opening valve core 200 to work; the lower part of the lower shell 401 has a threaded input hole 403 and an output hole 404 on both sides, wherein the valve core 220 is inserted into the lower part of the lower shell 401 to realize the on-off state isolation of the input hole 403 and the output hole 404;

[0058] The deceleration motor device 300 is equipped with a motor 301, a transition gear 304 meshing with the large gear 121 of the large and small double-layer gears 120, and an output gear 303 meshing with the transition gear 304. The output gear 303 is connected to the upper end of the shaft of the motor 301. The deceleration motor device 300 is also equipped with a reducer 302, a speed encoder 305 and a terminal 306; and the automatic control circuit board 600 connects the speed encoder 305 and the terminal 306. The manual adjustment shaft 110 is arranged between the deceleration motor device 300, the large and small double-layer gears 120 and the multi-stage planetary reduction gear assembly 130. The reduction ratio formed by the deceleration motor device 300 and the large and small double-layer gears 120 affects the hand feel strength of the manual adjustment shaft 110 when adjusting the rotation. The reduction ratio of the multi-stage planetary reduction gear assembly 130 determines how many turns the manual adjustment shaft 110 rotates to fully open or fully close the quick-opening valve core.

[0059] like Figure 5 and Figure 6 As shown, the automatic control circuit board 600 is connected to the speed encoder 305 and the terminal 306 of the reduction motor 300 respectively. Figure 7 It can be seen that the automatic control circuit board 600 is connected to the single-chip microcomputer processor through a DC / DC module to power the motor 301, and the speed encoder 305 is installed at the lower end of the main shaft of the motor 301. When the motor 301 is in motion, the speed encoder 305 outputs a coding signal, and the single-chip microcomputer processor calculates the direction, speed and position of the motor rotation through this signal; the single-chip microcomputer processor on the automatic control circuit board 600 receives and sends signals through the CANBUS bus to connect with the oxygen cabin and oxygen generator, thereby realizing data interaction between the single-chip microcomputer and the CANBUS bus.

[0060] Its main working states are:

[0061] 1. Startup reset. In the startup state, the single-chip microcomputer first sends PWM pulse current to drive the motor 301 to rotate until the quick-opening valve core 200 is closed. The single-chip microcomputer detects the working current of the motor 301 in real time. If the working current value after A / D conversion reaches a threshold value Imax, it is determined that the motor is blocked, indicating that the valve has been closed, the count value of the orthogonal encoder is cleared, and the valve status bit is "reset". If the working current value does not reach the threshold value within a certain period of time, it is determined that the motor is abnormal.

[0062] 2. Automatic adjustment. After the startup reset, it enters the normal working process, automatically collects the pressure change data in the oxygen chamber, and quickly calculates and adjusts the opening, closing and opening of the valve. The automatic control circuit board 600 automatically accepts the input position command (Ptarget). The position command occupies one byte and the acceptance range is 0-100, which represents the opening of the valve. The single-chip microcomputer reads the value (Psys) of the orthogonal encoder in real time to calculate the current opening of the valve. When the opening of the valve does not match the position command, the difference between the two is calculated (Pdiff), and then the number of PWM pulses that need to be adjusted (Ctarget) is calculated, and then the motor 301 is controlled to rotate to the specified position. If the motor 301 does not rotate to the specified opening, the difference between the actual position and the command (Pdiff) continues to be calculated, and then the motor 301 continues to be controlled to rotate until the difference is reduced to within the threshold.

[0063] 3. Abnormal detection. During the operation of the system, if the motor 301 fails to rotate to the specified position for a long time (Tmax), the motor 301 is judged to be abnormal. At this time, the system sets "valve abnormality" = 1 and tries to reset the valve (according to the reset process). If the reset is successful, it returns to the normal working mode.

[0064] The automatic control regulating valve automatically controls the opening, closing and opening degree of the quick-opening valve core 200 through the CAN bus by collecting the pressure change data of the oxygen chamber by the computer, and can also be manually rotated and controlled by installing the hand wheel 500 of the corrugated meter. In special circumstances such as power outages, manual control can be changed. If the manual control exceeds the pressure increase or decrease standard, the opening degree can also be automatically corrected.

[0065] In some embodiments, Figure 4 , Figure 5 and Figure 6 As shown, the output planet carrier 133 is configured such that when it rotates 90 degrees in the forward or reverse direction, the valve regulating shaft 210 rotates 90 degrees synchronously, thereby achieving full opening or full closing of the quick-opening valve core 200.

[0066] In some embodiments, the quick-opening valve core 200 is a ceramic valve core or a spherical valve core, and the quick-opening valve core 200 includes a valve adjusting shaft 210 and a valve core 220. The upper end of the valve adjusting shaft 210 has an adjusting shaft concave structure / adjusting shaft convex structure 211, which is connected with the planetary carrier convex structure / planetary carrier concave structure 1331 of the output planetary carrier 133 and is positioned on an axis.

[0067] In some embodiments, from Figure 1 , Figure 3 and Figure 6As can be seen in the figure, the lower part of the lower shell 401 forms a "T" shape with the input hole 403 and the output hole 404 as a whole, and then the input hole 403 and the output hole 404 are respectively connected to the air inlet interface and the air outlet interface to form a "T" shape arrangement, thereby improving the opening speed and efficiency of the quick-opening valve core.

[0068] In some embodiments, the motor 301 rotates synchronously with the speed encoder 305, and the motor 301 is configured so that when it rotates one circle, the speed encoder 305 synchronously outputs 2-16 encoding signals, thereby collecting the speed and rotation direction, and the automatic control circuit board 600 automatically calculates the opening of the quick-opening valve core 200. The automatic control circuit board connects the single-chip processor and the encoder 305 through a DC / DC module to power it, wherein:

[0069] When the reduction motor 300 is started, the automatic control circuit board 600 first outputs the motor power supply to close the quick-opening valve core 200. The automatic control circuit board 600 detects the working current of the motor. If the current value obtained after A / D conversion reaches a threshold value Imax, it is determined that the motor is blocked, the quick-opening valve core 200 is closed, and the orthogonal encoder count value is reset to the initial state.

[0070] When the opening of the quick-opening valve core 200 needs to be adjusted according to the control requirements of pressure and flow, the automatic control circuit board 600 receives the position command (Ptarget) input by the system through the CANBUS bus transceiver, and the single chip reads the value (Psys) of the orthogonal encoder in real time to calculate the current opening of the quick-opening valve core 200. When the opening of the quick-opening valve core 200 does not match the position command, the difference (Pdiff) between the two is calculated, and then the number of PWM pulses that need to be adjusted (Ctarget) is calculated, and then the motor 301 is controlled to rotate to the specified position. If the motor 301 does not rotate to the specified opening, the difference (Pdiff) between the actual position and the command is continued to be calculated, and then the motor 301 is continued to be controlled to rotate until the difference is reduced to within the threshold.

[0071] In some embodiments, the top of the manual adjustment shaft 110 is also connected to a bellows handwheel 500, and a mechanical counter 501 is provided inside the bellows handwheel 500, and the counter 501 is configured so that when the quick-opening valve core 200 is fully closed to fully open, the counter 501 rotates at least 2 times. When the bellows handwheel 500 is rotated manually or the reduction motor 300 is electrically controlled to rotate, the quick-opening valve core 200 can be opened and closed synchronously.

[0072] In some embodiments, the reduction ratio of the reducer 302 is generally between 1:16 and 1:49, the reduction motor 300 is installed on the valve body housing 400, the axis of the reduction motor 300 and the coaxial reduction device 100 are arranged in parallel, and the output gear 303 of the reduction motor 300 is meshed with the large and small double-layer gears 120 on the manual adjustment shaft 110 through the transition gear 304, thereby realizing the rapid driving of the opening of the quick-opening valve core 200.

[0073] In some embodiments, the motor 301 is any one of a brushless DC motor, a brushed DC motor and a coreless DC motor. The reduction ratio of the reducer 302 of the reduction motor 300 directly affects the damping force of the manual adjustment shaft 101 when adjusting the rotation.

[0074] In some embodiments, the speed encoder 305 is installed at the lower end of the motor 301 .

[0075] In some embodiments, the outer side of the planetary reduction gear assembly 130 is further provided with an outer gear ring 132 meshing therewith.

[0076] The embodiments disclosed in the present utility model are preferred embodiments, but are not limited thereto. Ordinary technicians in this field can easily understand the spirit of the present utility model based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of the present utility model, they are all within the protection scope of the present utility model.

Claims

1. Manual and automatic coaxial control regulating valve, characterized in that: The automatic control regulating valve also includes: A coaxial reduction gear (100), the coaxial reduction gear (100) being provided with a manual adjustment shaft (110), the manual adjustment shaft (110) penetrating and connecting a large and small double-layer gear (120), the small gear (122) of the large and small double-layer gear (120) being used to connect a planetary reduction gear assembly (130) and an output planet carrier (133); and A quick-opening valve core (200), the quick-opening valve core (200) comprising a valve regulating shaft (210) coaxially arranged with and connected to the large and small double-layer gears (120) and the output planetary carrier (133) to achieve linkage, one end of the valve regulating shaft (210) being provided with a regulating shaft concave structure / regulating shaft convex structure (211), the regulating shaft concave structure / regulating shaft convex structure (211) being engaged and connected with the planetary carrier convex structure / planetary carrier concave structure (1331) of the output planetary carrier (133) to achieve coaxial linkage and synchronous rotation, the quick-opening valve core (200) further comprising a valve core (220); and A valve body shell (400), the valve body shell (400) provides a lower shell (401) and an upper shell cover (402) for the coaxial reduction device (100) and the quick-opening valve core (200) to work; the lower part of the lower shell (401) is provided with a threaded input hole (403) and an output hole (404) on both sides, wherein the valve core (220) is inserted into the lower part of the lower shell (401) to achieve isolation of the on and off states of the input hole (403) and the output hole (404); and A reduction motor device (300), the reduction motor device (300) being configured with a motor (301), a transition gear (304) meshing with a large gear (121) of a large and small double-layer gear (120), and an output gear (303) meshing with the transition gear (304), the output gear (303) being connected to the upper end of the shaft of the motor (301), the reduction motor device (300) being further configured with a reducer (302), a rotation speed encoder (305) and a terminal (306); and An automatic control circuit board (600), wherein the automatic control circuit board (600) is connected to the rotation speed encoder (305) and the connection head (306).

2. The manual-automatic coaxial automatic control regulating valve according to claim 1 is characterized in that: The output planet carrier (133) is arranged such that when it rotates in the forward or reverse direction, i.e., 90 degrees, the valve regulating shaft (210) rotates synchronously by 90 degrees.

3. The manual-automatic coaxial automatic control regulating valve according to claim 2 is characterized in that: The quick-opening valve core (200) is a ceramic valve core or a spherical valve core.

4. The manual-automatic coaxial automatic control regulating valve according to claim 2 is characterized in that: The lower portion of the lower housing (401) and the input hole (403) and the output hole (404) are integrally arranged in a "T" shape.

5. The manual-automatic coaxial automatic control regulating valve according to claim 1 is characterized in that: The motor (301) rotates synchronously with the rotation speed encoder (305), and the rotation speed encoder (305) is configured such that when the motor (301) rotates one circle, the rotation speed encoder (305) synchronously outputs 2-16 encoding signals.

6. The manual-automatic coaxial automatic control regulating valve according to claim 1 is characterized in that: The top of the manual adjustment shaft (110) is also connected to a bellows hand wheel (500), and a mechanical counter (501) is arranged inside the bellows hand wheel (500). The counter (501) is configured such that when the quick-opening valve core (200) changes from fully closed to fully open, the counter (501) rotates at least 2 times.

7. The manual-automatic coaxial automatic control regulating valve according to claim 1 is characterized in that: The reduction ratio of the reducer (302) is generally between 1:16 and 1:

49.

8. The manual-automatic coaxial automatic control regulating valve according to claim 7 is characterized in that: The motor (301) is any one of a brushless DC motor, a brushed DC motor and a coreless DC motor.

9. The manual-automatic coaxial automatic control regulating valve according to any one of claims 1 to 8, characterized in that: The rotation speed encoder (305) is installed at the lower end of the motor (301).

10. The manual-automatic coaxial automatic control regulating valve according to claim 9, characterized in that: The outer side of the planetary reduction gear assembly (130) is also provided with an outer gear ring (132) meshing therewith.

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