Multi-pipeline path switching device with valve plate

Abstract

A multi-pipeline path switching device with a valve plate of pneumatic logistics conveying equipment is characterized in that a rotating body is composed of a pipe outlet, a plurality of pipe inlets and a switching pipeline, a zero inlet of the switching pipeline is embedded in the off-center position, in butt joint with the pipe inlets, of a second rotating plate, and only one pipeline hole is formed in the same-radius position; a plurality of pipe inlets are designed in the same-radius positions of the second frame plate, a pipe outlet is formed in the center of the first frame plate, a sealing ring is installed in an inward pipe inlet hole of the second frame plate of the frame body, a pipeline column is designed outside a zero outlet of the first rotating plate and divided into two layers, a sealing ring is designed on the inner ring of the pipeline column, and the outer layer of the pipeline column forms a center shaft of the first rotating plate of the S-pipe rotating body. The rotating body is inserted into the pipe outlet of the 1 # frame plate, the speed reduction motor drives the rotating body and is installed outside the 2 # frame plate, each pipe inlet is provided with a detection element and a magnetic position sensor, the number of the magnetic position sensors is the same as that of the pipe inlets, and through the design, the problem that a multi-pipeline pipeline is connected into one receiving and transmitting device can be solved, and the requirement for high transmission quantity is met.

Description

Technical Field

[0001] The utility model relates to the field of pipeline logistics transmission, and to a transmission structure and solution for pipeline logistics multi-pipeline switching equipment and exchange center equipment, and in particular to an overall solution for transceiver equipment with path characteristics of a steel pipe parallel system, to realize the structure of a multi-pipeline path switching device with a built-in valve plate that enables a transceiver station to connect to multiple pipeline transmission pipelines. Background Art

[0002] Medical pneumatic pipeline logistics is widely accepted by the medical industry for its fast transmission speed, safety and efficiency. Today, it has become the necessary and preferred logistics transmission equipment for newly built hospitals. The pipeline logistics system has formed two structural modes, one is the parallel steel pipe mode, and the other is the series mode. The series pipes mostly use stainless steel pipes as the transmission path design, which has many advantages. Among them, the pipeline path switching equipment is mostly one-input and multiple-output mode, which is more than the traditional one-to-three, and has developed into a one-to-four, five-to-five or even one-to-six structure. When the pipeline path switching equipment is used in the system, it must be a single pipeline port connected to the power source, that is, the direction of the fan. Multiple pipeline ports can be used as output ports and can be connected to each terminal transceiver workstation. Therefore, the pipelines in the system are divided into main pipelines and auxiliary pipelines. The path characteristics of this steel pipe parallel system also make the design of the utility model.

[0003] The utility model designs the 1# rotating body for docking multiple pipe ports in the existing adapter into a large circular plate, leaves only one output pipe port on the large circular plate of the second rotating plate, designs sealing rings in all the inner holes of the corresponding second frame plate, designs sensors and one-way air valves in all input pipe ports, and uses this inverted design, uses the multiple pipe ports as the direction of docking the fan in the machine room, and changes the single pipe port into an output port to connect to the entrance of the transceiver device. This design can not only solve the problem of connecting multiple pipelines to one transceiver device, meet the requirements of high transmission volume, and improve efficiency, but also can be used as a transmission pipeline of the multi-pipeline system outside the machine room to perform transmission control operation of multiple pipes and then multiple pipes, solve the need for early midway handover outside the two machine rooms of the extra-large system, and the design can provide a variety of valuable solutions, flexible input pipe port combination, realize the reduction of transmission path, save investment and improve transmission efficiency. Utility Model Content

[0004] The utility model aims to provide a structure and solution for a multi-pipeline path switching device with a valve plate of a pneumatic tube transmission device, so as to achieve the purpose of connecting a transceiver station to multiple pipeline transmission pipelines.

[0005] In order to achieve the above objectives, this application provides the following technical solutions:

[0006] A multi-pipeline path adapter with a built-in valve plate, which is characterized in that it includes a frame body with an output pipe port and multiple input pipe ports and an S-tube rotating body, and the S-tube rotating body is composed of a transfer pipe to form a passing path;

[0007] The zero outlet of the adapter pipe in the S-tube rotating body is embedded in the center position of the first rotating plate, and the zero inlet of the adapter pipe is embedded in the same radial position of the second rotating plate that is eccentric to the center and docked with the input pipe port. The second rotating plate is only provided with a pipe hole at the same radial position.

[0008] The frame body is divided into a first frame plate and a second frame plate. The output pipe opening is arranged at the center of the first frame plate. A plurality of input pipe openings are designed at the same radial position on the second frame plate. The input pipe opening holes with the same radius facing inward on the second frame plate of the frame body are equipped with sealing rings. The device is provided with a driver and a detection element.

[0009] The adapter pipe in the S-tube rotating body is an S-shaped pipe, and both ends of the pipe are embedded in the outer grooves of the circular holes of the first rotating plate and the second rotating plate. The outer circle of the second rotating plate is provided with a belt groove. The outer circles of the first rotating plate and the second rotating plate are designed with frame column mounting holes and bolt fixing holes. The adapter pipe is fixed as a whole by multiple support rods.

[0010] A pipe column is designed outside the zero outlet of the first rotating plate. The pipe column is divided into two layers. A sealing ring is designed on the inner circle of the pipe column. The outer layer of the pipe column constitutes the central axis of the first rotating plate of the S-tube rotating body and is inserted into the output pipe port of the first frame plate.

[0011] The pipe column outside the zero outlet is inserted into the output pipe port, the inner diameter of the pipe hole of the output pipe port is the same size as the outer diameter of the sealing ring designed in the inner circle of the pipe column, and the inner diameter of the sealing ring is the same as the inner diameter of the switching pipe.

[0012] The center hole of the second rotating plate is inserted into the center axis of the second frame plate. The positioning axis hole designed on the second frame plate is on a vertical line with the center of the pipe column of the first rotating plate. The No. 0 inlet on the transfer pipe of the S-tube rotating body can connect to all input pipe openings with the same radius on the second frame plate.

[0013] The sealing ring in the input pipe opening hole is arranged in the input pipe opening hole on the second frame plate between the second rotating plate and the second frame plate.

[0014] The center hole of the first frame plate is divided into two layers. The outer layer is the pipe installation hole of the output pipe outlet, which is pressed inwardly on the outer plane of the sealing ring. The positioning bearing is installed outside the center hole of the first frame plate corresponding to the outer diameter of the pipe column. The positioning bearing is adapted to the outer diameter of the pipe column of the first rotating plate.

[0015] The driver is a reduction motor installed outside the first frame plate. The driving wheel on the reduction motor shaft and the passive wheel designed on the outer diameter of the pipe column of the device rotating body are in a plane position, and are connected to the belt groove of the outer circle of the second rotating plate through the synchronous belt of the driving wheel on the reduction motor shaft.

[0016] The input pipe opening edge of the second frame plate is equipped with magnetic position sensors having the same number as the input pipe openings, and a magnet is arranged at the same radial position where the magnetic position sensors of the second rotating plate and the second frame plate are installed.

[0017] The biggest highlight of this utility model:

[0018] 1. The utility model designs the 1# rotating body for docking multiple pipe ports in the existing adapter into a large circular plate, leaving only one output pipe port on the large circular plate of the second rotating plate, designing all sealing rings in the inner hole of the corresponding second frame plate, designing sensors and one-way air valves in all input pipe ports, and using this inverted design, using the multiple pipe ports as the input pipe ports to dock the direction of the machine room fan, and changing the single pipe port to the output port to connect to the entrance of the transceiver. This design can not only solve the problem of connecting multiple pipelines to a transceiver, meet the requirements of high transmission volume, and improve efficiency, but also can be used as a transmission pipeline of the multi-pipeline system to perform transmission control operation of multiple pipelines and then multiple pipelines outside the machine room, solving the need for early midway handover outside the two machine rooms of the extra-large system. This design can provide a variety of valuable solutions, flexible combination, realize the reduction of transmission paths, save investment and improve transmission efficiency; with the design of the multi-pipeline adapter and the combination of multiple transceivers, the biggest advantage is that a single pipeline can meet the simultaneous arrival of multiple transmission bottles, realize high-intensity full-load operation, and solve the needs of transmission during peak hours in large hospitals. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model structure and the technical solutions of the existing equipment, the technical solutions in the specific embodiments of the present mechanism are clearly and completely described in conjunction with the accompanying drawings. The described embodiments are only a part of the utility model, not all embodiments. Other embodiments obtained by ordinary technicians in this field without making creative work belong to the protection scope of the utility model.

[0020] Figure 1 It is a cross-sectional schematic diagram of the utility model equipment.

[0021] Figure 2 It is a top view schematic diagram of the utility model equipment.

[0022] Figure 3 It is a cross-sectional schematic diagram of the S-tube rotating body of the utility model equipment.

[0023] Figure 4It is a plan view of the second frame plate of the device of the utility model.

[0024] Figure 5 It is a schematic diagram of the operation of the device of the utility model in the system.

[0025] Figure 6 It is a schematic diagram of the operation of the device of the utility model in the system.

[0026] The reference numerals in the figures shown in the accompanying drawings of the specification are as follows: 20, multi-pipeline switching device; 21, S-tube rotating body; 211, rotating body passive wheel; 212, pipeline column; 2120, column bolt; 213, first rotating plate; 2130, magnet; 214, second rotating plate; 215, rotating body support rod; 2150, reinforcing plate; 22, switching device housing; 220, output pipe port; 221, input pipe port; 225, frame support rod; 2250, support rod mounting hole; 227, first frame plate; 228, second frame Frame; 23, Transfer pipe; 231, Exit 0; 232, Inlet 0; 24, Positioning bearing; 240, Bearing installation position; 25, Sealing ring; 251, Spring washer; 26, Speed ​​reducer; 260, Synchronous belt; 261, Motor bracket; 263, Driving wheel; 29, Center bearing; 290, Positioning shaft nut; 291, Rotating body positioning shaft; 10, Current transfer equipment; 30, Multiple transceiver station; L01, Pipeline 1; L02, Pipeline 2; L03, Pipeline 3; L, Pipeline; L1, Pipeline port 1;

[0027] L2, pipe opening No. 2; L3, pipe opening No. 3; G, detection element; K, passive one-way air valve; K1, active pipe valve. DETAILED DESCRIPTION

[0028] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention; the preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations; the basic principles of the present invention defined in the following description may be applied to other implementation schemes, variations, improvements, equivalent schemes, and other technical solutions that do not deviate from the spirit and scope of the present invention.

[0029] It should be noted that the terms "installed", "set", "designed", "provided with", "connected", "connected", and "fixed" should be understood in a broad sense; for example, it can be a fixed connection, a detachable connection, or an integral structure; it can be directly connected, or indirectly connected through an intermediate medium, or it can be an internal connection between two devices, elements, or components; for ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances. Figures 1 to 6 As shown, the present application is described in detail in conjunction with embodiments.

[0030] In the drawings of the specification Figures 1 to 3 As shown, the S-tube rotating body 21 in the multi-pipeline adapter 20 is composed of a first rotating plate 213, a second rotating plate 214 and an adapter pipe 23; the No. 0 outlet 231 of the adapter pipe 23 is inserted into the inner pipe opening of the output pipe opening 220 of the first rotating plate 213, and the No. 0 inlet 232 of the adapter pipe 23 is inserted into the inner pipe opening of the output pipe opening 220 of the second rotating plate 214, and is fixed as a whole by the rotating body support rod 215 and the S-tube rotating body 21.

[0031] The transfer pipe 23 is formed by cutting and splicing 90-degree elbows of the same diameter as R800. Five short pipes are cut from the 90-degree elbows, and two are spliced ​​in the opposite direction into an S-shaped pipe. The interface is then sealed with a sleeve to enhance rigidity. The center distance between the No. 0 outlet 231 and the No. 0 inlet 232 of the formed S-shaped pipe is guaranteed to be controlled at 110 mm by tooling.

[0032] See Figure 3 In the embodiment, the rotating body passive wheel 211 and the pipe column 212 of the output pipe outlet 220 of the first rotating plate 213 are designed at the center position of the outer plane of the first rotating plate 213, and the inner edge of the center hole of the pipe column 212 is designed with the installation position of the sealing ring 25 and the spring washer 251. The rotating body passive wheel 211 and the pipe column 212 are fixed to the first rotating plate 213 through the column bolt 2120.

[0033] See Figure 1 Embodiment, the inner tube opening of the zero inlet 232 of the second rotating plate 214 above the S-tube rotating body 21 is installed with a spring washer 251 and a sealing ring 25 to the position, and then the center hole of the S-tube rotating body 21 is inserted into the rotating body positioning shaft 291 of the second frame plate 228; the frame support rod 225 at this end of the second frame plate 228 is fixed with bolts.

[0034] See Figure 1 to Figure 2 As shown: the center hole of the first frame plate 227 is placed into the position of the pipe column 212 of the S-tube rotating body 21. The outer periphery of the pipe column 212 is the positioning axis of the first rotating plate 213 of the S-tube rotating body 21. The positioning bearing 24 on the first frame plate 227 can be adjusted to the optimal position. The two positioning bearings 24 on the motor side of the first frame plate 227 play a key role.

[0035] See Figure 1As shown: the reduction motor 26 is installed on the first frame plate 227 through the motor bracket 261, the driving wheel 263 is fixed on the shaft of the reduction motor 26, five position sensors are fixed, and then the pipe column 212 of the first rotating plate 213 of the S-tube rotating body 21 is inserted into the inner pipe opening of the output pipe opening 220 of the first frame plate 227, the synchronous belt 260 is installed, and the frame support rod 225 at this end of the first frame plate 227 is fixed with bolts, and finally the adapter housing 22 is installed.

[0036] See Figure 3 As shown: the multi-pipeline adapter device 20 in the embodiment of the utility model includes multiple input pipe openings 221 and an output pipe opening 220 device, and the S-tube rotating body 21 is composed of a adapter pipe 23 to form a specimen passing path.

[0037] The adapter pipe 23 in the S-tube rotating body 21 in the embodiment of the utility model has an S shape and is formed by cutting and splicing 90-degree elbow pipes of the same diameter of R800, and then the interface is sealed with a sleeve, which not only ensures that air does not leak, but also enhances the rigidity of the adapter pipe 23. The adapter pipe 23 is fixed as a whole by multiple support rods, and reinforcing plates are designed at both ends of the outer circle of the support rods. The reinforcing plates surround the support rods at both ends to increase the stability of the structure.

[0038] In the embodiment of the utility model, the pipe column 212 designed outside the zero outlet 231 of the first rotating plate 213 is formed in two layers. The inner ring of the pipe column 212 of the first rotating plate 213 is designed with a sealing ring 25, and the outer diameter is designed with a rotating body passive wheel 211 and the pipe column 212 is fixed to the first rotating plate 213 through a plurality of column bolts 2120. This processing technology reduces the investment in production cost and maintenance cost while ensuring the reliability of equipment operation.

[0039] Device operation instructions:

[0040] See system diagram Figure 5 As shown: Regardless of the input or output port, the transmission bottle can enter from the input port 221 or the output port 220. Before the transmission bottle enters the multi-channel adapter 20, the zero inlet 232 of the transfer pipe 23 has completed the positioning of the command position. The transmission bottle can smoothly pass through the transfer pipe 23 to achieve the conversion of any path. After the detection element G of the input port 221 above the transfer pipe 23 detects the information that the transmission bottle has passed, it will move to the standby position under the control of the reduction motor to wait for the next operation instruction. The system schematic diagram Figure 5The multi-channel switching device 20 shown is vertically installed above the multiple transceiver station 30, and its input pipe opening 221 is respectively connected to the multi-channel transmission pipeline through the existing switching device 10. The pipeline is respectively installed with a passive one-way air valve K at the position where it is connected to the input pipe opening 221. The passive one-way air valve K is installed at the height position of two transmission bottles above the multi-channel switching device 20; when the transmission bottle transmitted from any pipeline of the No. 1 pipeline L01-No. 3 pipeline L03 ends reaches the input pipe opening 221, if the instruction is not open to itself at this time, the second rotating plate 214 under the input pipe opening 221 closes the input pipe opening 221, and the No. 0 entrance 232 on the second rotating plate 214 is only open for the input pipe opening 221 that receives the instruction; it is blocked in front of the input pipe opening 221 The waiting transmission bottle will slowly reach the second rotating plate 214 and be detected by the detection element G due to the air resistance of the air discharge of the passive one-way air valve K. The multi-channel switching device 20 is vertically arranged, and the transmission bottle that reaches the top of the input pipe port 221 will directly slide into the station by its own weight in the future, which reduces the system control time and speeds up the transmission efficiency of the system. As long as the transmission bottle on the second rotating plate 214 is detected by the detection element G, the transmission process is completed, and the subsequent work can be completed by the receiving station itself; with the design of the multi-channel switching device 20 and the combination of the multiple transceiver devices 30, the biggest advantage is that a single pipeline can meet the simultaneous arrival of multiple transmission bottles, realize high-intensity full-load operation, and solve the transmission needs of large hospitals during peak hours.

[0041] See system diagram Figure 6 As shown: the multi-pipeline adapter 20 can be arbitrarily combined in the connection of the transmission pipelines of the multi-system pipelines. The multi-pipeline adapter 20 can be installed horizontally in the system to achieve connection with the system fan in two directions. The active pipeline valve K1 is installed on the external input pipe port 221 of the second rotating plate 214 on the multi-pipeline adapter 20. The active pipeline valve K1 can be opened or closed as needed to achieve the control of the transmission bottle slowly arriving at the pipe port position to stop and wait or directly pass through; System schematic diagram Figure 6The connection method shown can realize the exchange transmission of the intermediate pipeline outside the machine room: (transmitting a transmission bottle from the pipeline of the No. 1 pipeline L01 system pipeline to the control of any station of the No. 2 pipeline L02 pipeline or to the output pipe port 220 of the multi-pipeline switching device 20 to any transceiver station through the existing switching device 10) The pipeline of the No. 1 pipeline L01 system pipeline is sent to a transmission bottle through the positive pressure of the machine room fan, and is sent out through the No. 3 pipe port L3 of the existing switching machine 10 of this pipeline to reach the multi-pipeline switching The active pipeline valve K1 of the No. 2 pipeline port L2 of the input pipe port 221 of the multi-pipeline switching device 20 is in a closed state, and the active pipeline valve K1 on the external pipeline of the output pipe port 220 of the multi-pipeline switching device 20 is in an open state. The transmission bottle is delivered to the external pipeline of the output pipe port 220 of the multi-pipeline switching device 20 through the fan of the pipeline room of the No. 1 pipeline L01 and stops at the K1 position. After the transmission bottle is detected by the detection element G when passing through the input pipe port of the multi-pipeline switching device 20, the No. 1 pipeline The fan in the L01 machine room stops running, the S-tube rotating body 21 of the multi-channel adapter 20 starts to rotate, and the No. 0 inlet 232 of the adapter pipe 23 rotates to the No. 3 pipe port L3 of the input pipe port 221. After the host receives the action completion information of the adapter pipe 23, the fan of the No. 2 pipeline L02 pipeline is started with negative pressure. After the transmission bottle is detected by the detection element G when it passes through the multi-channel adapter 20 input pipe port 221, the exchange work of the multi-channel adapter 20 is completed, and the multi-channel adapter 20 is switched on. The active pipeline valve K1 on the external pipeline of the output pipe outlet 220 of the connecting device 20 is in a closed state when in standby mode. If the external pipeline of the output pipe outlet 220 of the multi-pipeline switching device 20 is connected to any transceiver station through the current switching device 10, it is only necessary for the output pipe outlet of the current switching device 10 to start the pipeline fan relative to the receiving pipeline with negative pressure to suck away the transmission bottle. After the detection element G in the switching device of the current switching device 10 detects the passing information of the transmission bottle, the switching work of the multi-pipeline switching device 20 is completed.

[0042] See Figure 1 As shown: the zero exit 231 is a fixed position, and the output pipe port 220 is always in a straight line with the zero exit 231. When the device is installed above the transceiver station, the sending operation is performed, and the transmission bottle enters from the output pipe port 220 and can select any input pipe port 221 for output. The transmission bottle enters from any input pipe port 221 and can only exit from the output pipe port 220; the device 20 is designed with a magnet 2130 on the first rotating plate 213 of the S-tube rotating body 21, and the magnet 2130 of the first frame plate 227 above the magnet 2130 is designed with the same number of magnetic sensors corresponding to the input pipe port 221 at the same radial position. When the device 20 is working, the standby position of the zero entrance 232 of the S-tube rotating body 21 is designed at the position of the middle input pipe port 221, and the input pipe port 221 of the docking instruction is rotated to both sides during operation, and the left and right rotation angle is less than 360 degrees during operation.

[0043] The specific embodiments described above further illustrate the purpose, technical solutions and beneficial effects of the present invention. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A multi-pipeline path adapter with a built-in valve plate, characterized in that: It comprises a frame body with an output pipe opening and a plurality of input pipe openings and an S-tube rotating body, wherein the S-tube rotating body is constituted by a transfer pipe forming a passing path; The zero outlet of the adapter pipe in the S-tube rotating body is embedded in the center position of the first rotating plate, and the zero inlet of the adapter pipe is embedded in the same radial position of the second rotating plate that is eccentric to the center and docked with the input pipe port. The second rotating plate is only provided with a pipe hole at the same radial position; The frame body is divided into a first frame plate and a second frame plate. The output pipe opening is arranged at the center of the first frame plate. A plurality of input pipe openings are designed at the same radial position on the second frame plate. The input pipe opening holes with the same radius facing inward on the second frame plate of the frame body are equipped with sealing rings. The device is provided with a driver and a detection element.

2. According to claim 1, a multi-pipeline path adapter with a built-in valve plate, characterized in that: The adapter pipe in the S-tube rotating body is an S-shaped pipe, and both ends of the pipe are embedded in the outer grooves of the circular holes of the first rotating plate and the second rotating plate. The outer circle of the second rotating plate is provided with a belt groove. The outer circles of the first rotating plate and the second rotating plate are designed with frame column mounting holes and bolt fixing holes. The adapter pipe is fixed as a whole by multiple support rods.

3. According to claim 1, a multi-pipeline path adapter with a built-in valve plate, characterized in that: A pipe column is designed outside the zero outlet of the first rotating plate. The pipe column is divided into two layers. A sealing ring is designed on the inner circle of the pipe column. The outer layer of the pipe column constitutes the central axis of the first rotating plate of the S-tube rotating body and is inserted into the output pipe port of the first frame plate.

4. According to claim 1, a multi-pipeline path adapter with a built-in valve plate is characterized in that: The pipe column outside the zero outlet is inserted into the output pipe port, the inner diameter of the pipe hole of the output pipe port is the same size as the outer diameter of the sealing ring designed in the inner circle of the pipe column, and the inner diameter of the sealing ring is the same as the inner diameter of the switching pipe.

5. According to claim 1, a multi-pipeline path adapter with a built-in valve plate is characterized in that: The center hole of the second rotating plate is inserted into the center axis of the second frame plate. The positioning axis hole designed on the second frame plate is on a vertical line with the center of the pipe column of the first rotating plate. The No. 0 inlet on the transfer pipe of the S-tube rotating body can connect to all input pipe openings with the same radius on the second frame plate.

6. According to claim 1, a multi-pipeline path adapter with a built-in valve plate is characterized in that: The sealing ring in the input pipe opening hole is arranged in the input pipe opening hole on the second frame plate between the second rotating plate and the second frame plate.

7. According to claim 1, a multi-pipeline path adapter with a built-in valve plate, characterized in that: The center hole of the first frame plate is divided into two layers. The outer layer is the pipe installation hole of the output pipe outlet, which is pressed inwardly on the outer plane of the sealing ring. The positioning bearing is installed outside the center hole of the first frame plate corresponding to the outer diameter of the pipe column. The positioning bearing is adapted to the outer diameter of the pipe column of the first rotating plate.

8. According to claim 1, a multi-pipeline path adapter with a built-in valve plate, characterized in that: The driver is a reduction motor installed outside the first frame plate. The driving wheel on the reduction motor shaft and the passive wheel designed on the outer diameter of the pipe column of the device rotating body are in a plane position, and are connected to the belt groove of the outer circle of the second rotating plate through the synchronous belt of the driving wheel on the reduction motor shaft.

9. The multi-pipeline path adapter device with a built-in valve plate according to claim 1, characterized in that: The input pipe opening edge of the second frame plate is equipped with magnetic position sensors having the same number as the input pipe openings, and a magnet is arranged at the same radial position where the magnetic position sensors of the second rotating plate and the second frame plate are installed.

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