An electric-free mechanical memory type gas-controlled delayed vacuum interface valve controller

Abstract

A non-electrical, mechanical memory, pneumatically controlled, delayed vacuum interface valve controller is characterized by comprising a pneumatic sensing unit (A), a pressure differential drive unit (B), a reset and self-locking unit (C), an air path conversion unit (D), a pressure control unit (E), and a negative pressure storage unit (F). This controller is purely mechanical and requires no electrical control, while also providing both delay and memory functions. This controller replaces the circuit control required for system control, significantly reducing the inconvenience and failure rate of circuit control. This controller eliminates the need for electrical components in the entire vacuum control system, allowing wastewater discharge to be controlled directly based on the system's vacuum state. This simplifies the system structure, optimizes system properties, and improves the reliability and stability of the entire vacuum system's operation.

Description

Technical Field

[0001] The present invention belongs to the technical field of environmental protection, and in particular relates to an electric-free mechanical memory type gas-controlled time-delay vacuum interface valve controller. Background Art

[0002] Vacuum sewage discharge technology is widely used in high-end shopping malls, high-end hotels, high-end public toilets and rural sewage systems. Urine and feces can be discharged through vacuum toilets; gray water used in households can be discharged through vacuum pipes from the gray water collection end; rural outdoor gray water collection can also be discharged through vacuum pipes.

[0003] During operation, a vacuum pump creates a vacuum throughout the entire system. Each toilet in the system must be isolated from the vacuum system by an interface valve. This valve allows for the system's vacuum on one side and the toilet's normal pressure on the other. When the toilet is flushed, the interface valve opens, and the pressure difference between the system's negative pressure and atmospheric pressure flushes the contents of the toilet.

[0004] The existing vacuum toilet systems on the market have the following defects:

[0005] (1) The circuit is easily affected by moisture. The toilet is used in a humid environment, which can easily cause a short circuit during use due to moisture. (2) It is inconvenient to install or use. The toilet must be equipped with a socket or needs to be charged frequently for normal use. If the power is low, the system will not be able to operate. (3) The signal transmission reliability is not accurate. The float or probe is easily contaminated, causing the electrical signal to be triggered incorrectly. (4) The overall size is large, which is not convenient for installation at home. Summary of the Invention

[0006] The purpose of the present invention is to address the technical defects of the above-mentioned existing vacuum toilet system and provide an electric-free mechanical memory type air-controlled delayed vacuum interface valve controller. The controller has the characteristics of no electric control and is purely mechanical, and also has the functions of delay and memory.

[0007] Technical Solution

[0008] In order to achieve the above technical objectives, the present invention provides an electric-free mechanical memory type pneumatically controlled delayed vacuum interface valve controller, characterized in that it includes a pneumatic sensing unit, a pressure differential drive unit, a reset self-locking unit, an air path conversion unit, a pressure control unit and a negative pressure storage unit;

[0009] The pneumatic sensing unit includes a pneumatic drive assembly, which can drive the magnetic push lever assembly to move under the action of an external force, and the movement of the magnetic push lever assembly can drive the movement of the magnetic push rod assembly, and the movement of the magnetic push rod assembly can be linked to the movement of the induction magnet assembly in the pressure difference drive unit. The movement of the induction magnet assembly under the linkage of the magnetic push rod assembly can unseal the closed airflow hole 2 between the pressure difference drive unit and the negative pressure storage unit;

[0010] After the air flow hole two between the pressure difference driving unit and the negative pressure storage unit is opened, the pressure difference starting component in the pressure difference driving unit pushes the shaft to move upward under the action of the air pressure difference, and during the upward movement of the shaft, it can close the air flow channel two between the air path conversion unit and the pressure control unit, and at the same time unseal the air flow channel one between the negative pressure storage unit and the air path conversion unit. After the air flow channel one between the negative pressure storage unit and the air path conversion unit is unsealed, the locking shaft component in the reset self-locking unit moves upward under the action of the air pressure difference, and during the upward movement of the locking shaft component, it can drive the induction magnet component to move, thereby closing the air flow hole two between the pressure difference driving unit and the negative pressure storage unit;

[0011] After the air flow hole 2 between the pressure difference driving unit and the negative pressure storage unit is closed, the reset magnet assembly in the pressure control unit overcomes the pressure difference reset resistance of the pressure difference starting assembly through the shaft to drive the shaft to move downward. During the downward movement of the shaft, the air flow channel 2 between the air path conversion unit and the pressure control unit can be unsealed, and the air flow channel 1 between the negative pressure storage unit and the air path conversion unit can be closed at the same time. After the air flow channel 1 between the negative pressure storage unit and the air path conversion unit is closed, the locking shaft assembly in the reset self-locking unit overcomes the pressure difference resistance and is reset under the action of the reset pull-back spring.

[0012] Furthermore, the pneumatic sensing unit includes a pneumatic sensing cavity, and the pneumatic sensing cavity is provided with a pneumatic drive assembly and a magnetic push lever assembly for movement;

[0013] The pneumatic drive assembly includes a pneumatic sensing diaphragm, which is arranged at the bottom of the pneumatic sensing cavity, a pressure differential power push piece is installed on the upper surface of the pneumatic sensing diaphragm, and a pneumatic sensing interface is arranged at the bottom of the pneumatic sensing cavity. The pneumatic sensing diaphragm can move up and down in the pneumatic sensing cavity. During the up and down movement of the pneumatic sensing diaphragm, the pressure differential power push piece can be driven to move up and down, thereby linking the magnetic push lever in the magnetic push lever assembly in the pneumatic sensing cavity to rotate. During the rotation of the magnetic push lever, the magnetic push rod can be linked to move in the magnetic push rod groove. A starting magnet is installed on the upper end of the magnetic push rod. During the movement of the magnetic push rod in the magnetic push rod groove, the magnetic push rod can drive the starting magnet to move together, and the starting magnet is connected to a reset auxiliary spring to provide it with a reset force for downward movement.

[0014] Furthermore, the pneumatic sensing cavity is provided with an atmospheric interface for communicating with the outside atmosphere.

[0015] Furthermore, one end of the magnetic push lever is mounted on a cover plate in the pneumatic sensing cavity by a self-feeding screw and can rotate around this end.

[0016] Furthermore, the pressure differential drive unit includes a pressure differential drive cavity, which is connected and installed with the pneumatic induction cavity and communicated with each other through an air flow hole, and a pressure differential starting component and an induction magnet component are provided in the pressure differential drive cavity;

[0017] The induction magnet assembly includes a lever, one end of which is equipped with an induction magnet group and the other end is equipped with a hole plug. The induction magnet group interacts with the starting magnet, and the lever is also linked to the locking shaft in the locking shaft assembly. The lever can rotate under the interaction between the induction magnet group and the starting magnet and the action of the locking shaft in the locking shaft assembly, thereby unsealing or sealing the hole plug accordingly.

[0018] The pressure differential starting assembly includes a pressure differential starting diaphragm, which is arranged at the bottom of the pressure differential driving cavity and corresponds to the position of the air flow hole. The pressure differential starting diaphragm can move up and down in the pressure differential driving cavity, thereby driving the pressure differential power push piece 2 installed on its upper surface to move up and down. One end of the shaft is installed on the pressure differential power push piece 2, and the other end passes through the pressure differential driving cavity, the vacuum source cavity, the control valve cavity, and the atmospheric cavity and corresponds to the reset magnet assembly in the atmospheric cavity. A capillary rubber plug is provided on the pressure differential driving cavity to communicate with the outside atmosphere.

[0019] Furthermore, the induction magnet group includes four induction magnets, and the four induction magnets are arranged at the end of the lever at an inclination of 45°.

[0020] Furthermore, the lever and the induction magnet are connected and fixed by a non-magnetic plastic screw and nut set.

[0021] Furthermore, a delayed expansion interface is provided on the pressure difference driving cavity for expanding the pressure difference power cavity B0.

[0022] Furthermore, one end of the lever is mounted on the cover plate 2 in the pressure difference driving cavity by using the self-tapping screw 2 and can rotate around this end.

[0023] Furthermore, the negative pressure storage unit and the reset self-locking unit are arranged in the vacuum source cavity, and the reset self-locking unit includes a locking shaft assembly;

[0024] The cam is connected to the control valve chamber by the pressure reducing device, and the pressure reducing device is connected to the pressure reducing device to control the pressure reducing device to the pressure reducing device.

[0025] Furthermore, a shaft seal is installed on the locking shaft to isolate the lower chamber and the pressure difference driving cavity.

[0026] Furthermore, a second shaft seal is installed on the shaft to isolate the vacuum source cavity and the pressure difference driving cavity.

[0027] Furthermore, one end of the return spring abuts against the pressure difference power pull tab, and the other end abuts against the inner cavity surface of the compartment.

[0028] Furthermore, the air path conversion unit includes a control valve cavity, and a shaft sealing assembly is installed at the bottom of the control valve cavity to close the air flow channel at the connection between the vacuum source cavity and the control valve cavity. During the upward movement of the shaft, the shaft sealing assembly can be pushed to open the air flow channel.

[0029] Furthermore, the shaft seal assembly 1 includes a shaft seal frame, shaft seal 3, a sealing ring and a shaft seal frame reset spring. The shaft seal frame is mounted on the outside of the shaft and placed in a place in the air flow channel. The shaft seal frame reset spring presses against the shaft seal frame to close the air flow channel 1. A sealing ring is arranged between the shaft seal frame and the air flow channel 1. A shaft seal 3 is arranged between the shaft seal frame and the shaft. During the upward movement of the shaft, the shaft seal frame is pushed upward and away from the air flow channel 1 by the retaining ring thereon.

[0030] Furthermore, the pressure control unit includes an atmospheric cavity, an air flow channel 2 is provided at the connection between the atmospheric cavity and the control valve cavity, and a shaft seal assembly 2 is provided at the air flow channel 2. During the upward movement of the shaft, it can cooperate with the shaft seal assembly 2 to close the air flow channel 2. The end of the shaft located in the atmospheric cavity is also connected to a reset magnet assembly. The shaft can move downward under the action of the reset magnet assembly to open the air flow channel 2.

[0031] Furthermore, the shaft seal assembly 2 includes a shaft seal limiter and a shaft seal 4. The shaft seal limiter is installed at the air flow channel 2, and the shaft seal 4 is installed at the air flow channel 2 below the shaft seal limiter. The shaft passes through the shaft seal limiter and the shaft seal 4, and during the upward movement of the shaft, the raised portion thereon can cooperate with the shaft seal limiter and the shaft seal 4 to close the air flow channel 2.

[0032] Furthermore, the reset magnet assembly includes a reciprocating reset magnet and a fixed magnet, the reciprocating reset magnet and the fixed magnet are in an attractive state, the shaft passes through the through hole in the middle of the fixed magnet to support the reciprocating reset magnet, and the reciprocating reset magnet can move up and down in the atmospheric cavity.

[0033] Furthermore, the atmospheric cavity is provided with an atmospheric port, a vacuum interface valve interface and a vacuum water valve interface.

[0034] Beneficial effects

[0035] This invention provides an electrical-free, mechanical-memory, pneumatically controlled, time-delayed vacuum interface valve controller. This controller features both electrical-free operation and mechanical operation, along with both time delay and memory functions. This controller replaces the circuit control required for system control, significantly reducing the inconvenience and failure rate of circuit control. This controller eliminates the need for electrical components in the entire vacuum control system, allowing wastewater discharge to be controlled directly based on the system's vacuum state. This simplifies the system structure, optimizes system properties, and improves the reliability and stability of the entire vacuum system. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Attachment Figure 1 Schematic diagram of the shaft of the product in the embodiment of the present invention in the starting state.

[0037] Attachment Figure 2 It is a product exploded view of an embodiment of the present invention.

[0038] Attachment Figure 3 This is a product main view of an embodiment of the present invention.

[0039] Attachment Figure 4 This is a schematic diagram of the product structure of an embodiment of the present invention Figure 1 .

[0040] Attachment Figure 5 This is a schematic diagram of the product structure of an embodiment of the present invention Figure 2 .

[0041] Attachment Figure 6 It is a schematic diagram of the bottom of the product according to an embodiment of the present invention.

[0042] Attachment Figure 7 It is a schematic diagram of the top of a product according to an embodiment of the present invention.

[0043] Attachment Figure 8 It is a schematic diagram of a product in an embodiment of the present invention in a normal pressure state.

[0044] Attachment Figure 9 It is a schematic diagram of a product according to an embodiment of the present invention in a closed atmospheric state.

[0045] Attachment Figure 10 It is a schematic diagram of a product according to an embodiment of the present invention in an open negative pressure state.

[0046] Attachment Figure 11 It is a schematic diagram of a product in an embodiment of the present invention in a delayed recovery state.

[0047] Attachment Figure 12 This is a schematic diagram of a product connected to a sewage discharge system according to an embodiment of the present invention. DETAILED DESCRIPTION

[0048] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0049] In the description of the present invention, it should be noted that the terms "inner," "outer," "front," "rear," "left," "right," "normal side," "standby side," and so forth, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0050] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted" and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0051] The present invention will be further described in detail below through specific embodiments in conjunction with the accompanying drawings.

[0052] Example

[0053] As attached Figure 1, 3 and 4, a non-electric mechanical memory type gas-controlled delayed vacuum interface valve controller, which includes a pneumatic sensing unit A, a pressure difference drive unit B, a reset self-locking unit C, a gas path conversion unit D, a pressure control unit E and a negative pressure storage unit F; as shown in the attached Figure 12 As shown, this embodiment is connected to the sewage system.

[0054] Among them, as shown in the attached figure Figure 3 , 4, 5, 6 and 7, the pneumatic sensing unit A includes a pneumatic sensing cavity A0, the bottom of the pneumatic sensing cavity A0 is covered with a cover plate A4, and the pneumatic sensing cavity A0 is provided with a pneumatic drive component A1 and a magnetic push lever component A2 for movement; the pneumatic drive component A1 includes a pneumatic sensing diaphragm A101, the pneumatic sensing diaphragm A101 is arranged at the bottom of the pneumatic sensing cavity A0, a pressure difference power push piece A102 is installed on the upper surface of the pneumatic sensing diaphragm A101, a pneumatic sensing interface A01 is provided at the bottom of the pneumatic sensing cavity A0, and the pneumatic sensing diaphragm A101 can move up and down in the pneumatic sensing cavity A0, the The up-and-down motion of the pneumatic sensing diaphragm A101 drives the pressure differential powered push plate A102, thereby rotating the magnetic lever A201 in the magnetic lever assembly A2 within the pneumatic sensing chamber A0. Rotation of the magnetic lever A201 drives the magnetic push rod A202 within the magnetic push rod slot A203. A starting magnet A204 is mounted on the upper end of the magnetic push rod A202. During its movement within the magnetic push rod slot A203, the magnetic push rod A202 drives the starting magnet A204 along with it. A reset assist spring A205 is connected to the starting magnet A204, providing a reset force for downward movement. An atmospheric port A02 is provided on the pneumatic sensing chamber A0 for communication with the outside atmosphere. One end of the magnetic lever A201 is mounted on a cover plate A207 within the pneumatic sensing chamber A0 using a self-screw A206 and can rotate about this end.

[0055] The pressure differential drive unit B includes a pressure differential drive cavity B0, which is connected to the pneumatic induction cavity A0 and communicates with the pneumatic induction cavity A0 through an air flow hole AB01. The pressure differential drive cavity B0 is provided with a pressure differential starting component B2 and an induction magnet component B1.

[0056] The induction magnet assembly B1 includes a lever B101, one end of which is equipped with an induction magnet group B102 and the other end is equipped with a hole plug B103. The induction magnet group B102 interacts with the starting magnet A204. The lever B101 is also linked to the locking shaft C102 in the locking shaft assembly C1. Under the interaction between the induction magnet group B102 and the starting magnet A204 and the action of the locking shaft C102 in the locking shaft assembly C1, the lever B101 can rotate, thereby unsealing or sealing the hole plug B103 accordingly.

[0057] The pressure differential activation assembly B2 includes a pressure differential activation diaphragm B201, which is positioned at the bottom of the pressure differential drive cavity B0 and corresponds to the position of the airflow hole 1 AB01. The pressure differential activation diaphragm B201 can move up and down within the pressure differential drive cavity B0, thereby driving the pressure differential power push piece 2 B202 installed on its upper surface to move up and down. One end of the shaft B3 is mounted on the pressure differential power push piece 2 B202, and the other end passes through the pressure differential drive cavity B0, the vacuum source cavity C0, the control valve cavity D0, and the atmospheric cavity E0 to correspond to the reset magnet assembly E1 in the atmospheric cavity. The pressure differential drive cavity B0 is provided with a capillary rubber plug B01 to communicate with the outside atmosphere. The induction magnet group B102 includes four induction magnets, which are arranged at a 45° angle at the end of the lever B101. The lever B101 and the induction magnet are connected and fixed by a non-magnetic plastic screw and nut group B104. The pressure differential driving cavity B0 is provided with a time-delay expansion interface B02 for expanding the pressure differential power cavity B0. One end of the lever B101 is mounted on the cover plate B106 in the pressure differential driving cavity B0 using a self-tapping screw B105 and can rotate around this end.

[0058] The negative pressure storage unit F and the reset self-locking unit C are arranged in the vacuum source cavity C0, and the reset self-locking unit C includes a locking shaft assembly C1; a vacuum source interface C01 is provided on the vacuum source cavity C0 to be connected to the vacuum system to maintain the vacuum state of the vacuum source cavity C0, a compartment C02 is provided in the vacuum source cavity C0, and a locking shaft assembly C1 is provided in the compartment C02, and the locking shaft assembly C1 includes a pull-back diaphragm C103, and a pressure difference power pull piece C104 is installed on the upper surface of the pull-back diaphragm C103, one end of the locking shaft C102 is connected to the pressure difference power pull piece C104, and the other end extends into the pressure difference drive cavity B0 and is linked to the lever B101, and the pressure difference power pull piece C104 is connected A return spring C101 is provided. The return diaphragm C103 separates the compartment C02 into an upper chamber C02a and a lower chamber C02b. The lower chamber C02b is at normal pressure and is open to the outside world. The upper chamber C02a is connected to the control valve cavity D0 via a third airflow hole C02c. A flap check valve C105 covers the third airflow hole C02c. The return diaphragm C103 is able to move up and down within the compartment. The pressure differential power pull tab C104 moves upward or downward under the action of the return diaphragm C103 or the return spring C101, thereby driving the locking shaft C102 upward or downward. The upward movement of the locking shaft can also cause the lever B101 to rotate and reset. The locking shaft C102 is equipped with a shaft seal C102a to isolate the lower chamber C02b from the pressure differential drive cavity B0. The shaft B3 is equipped with a second shaft seal B3a to isolate the vacuum source cavity C0 from the pressure differential drive cavity B0. One end of the return spring C101 abuts against the pressure differential power pull tab C104, and the other end abuts against the inner surface of the compartment C02.

[0059] The air path conversion unit D includes a control valve cavity D0, and a shaft sealing assembly D01 is installed at the bottom of the control valve cavity D0 to close the air flow channel CD1 at the connection between the vacuum source cavity C0 and the control valve cavity D0. During the upward movement of the shaft B3, the shaft sealing assembly D01 can be pushed to open the air flow channel CD1. The shaft seal assembly D01 includes a shaft seal skeleton D01a, a shaft seal three D01b, a sealing ring D01c and a shaft seal skeleton reset spring D01d. The shaft seal skeleton D01a is mounted on the shaft B3 and is placed outside the air flow channel CD1. The shaft seal skeleton reset spring D01d presses against the shaft seal skeleton D01a to close the air flow channel CD1. A sealing ring D01c is arranged between the shaft seal skeleton D01a and the air flow channel CD1. A shaft seal three D01b is arranged between the shaft seal skeleton D01a and the shaft B3. During the upward movement of the shaft B3, the shaft seal skeleton D01a is pushed upward and away from the air flow channel CD1 by the retaining ring B3b thereon.

[0060] The pressure control unit E includes an atmospheric cavity E0, and an air flow channel DE1 is provided at the connection between the atmospheric cavity E0 and the control valve cavity D0. The shaft seal assembly E2 is provided at the air flow channel DE1. During the upward movement of the shaft B3, it can cooperate with the shaft seal assembly E2 to close the air flow channel DE1. The end of the shaft B3 located in the atmospheric cavity E0 is also connected to the reset magnet assembly E1. The shaft B3 can move downward under the action of the reset magnet assembly E1 to open the air flow channel DE1. The second shaft seal assembly E2 includes a shaft seal limiter E201 and a fourth shaft seal E202. The shaft seal limiter E201 is installed in the second airflow channel DE1. The fourth shaft seal E202 is installed in the second airflow channel DE1 below the shaft seal limiter E201. The shaft B3 passes through the shaft seal limiter E201 and the fourth shaft seal E202. During the upward movement of the shaft B3, the raised portion B3c thereon cooperates with the shaft seal limiter E201 and the fourth shaft seal E202 to seal the second airflow channel DE1. The reset magnet assembly E1 includes a reciprocating reset magnet E101 and a fixed magnet E102. The reciprocating reset magnet E101 and the fixed magnet E102 are in an attractive state. The shaft B3 passes through the through hole E102a in the center of the fixed magnet E102 to support the reciprocating reset magnet E101. The reciprocating reset magnet E101 can move up and down within the atmospheric cavity E0. The atmospheric cavity E0 is provided with an atmospheric port E0a, a vacuum interface valve port E0b and a vacuum water valve port E0c.

[0061] In this embodiment, the pneumatic drive component A1 can drive the magnetic push lever component A2 to move under the action of external force, and the movement of the magnetic push lever component A2 can drive the movement of the magnetic push rod component A3, and the movement of the magnetic push rod component A3 can link the movement of the induction magnet component B1 in the pressure difference drive unit B, and the movement of the induction magnet component B1 under the linkage of the magnetic push rod component A3 can unseal the closed air flow hole 2 BC01 between the pressure difference drive unit B and the negative pressure storage unit F; the air flow hole 2 B between the pressure difference drive unit B and the negative pressure storage unit F After C01 is opened, the pressure differential driving cavity B0 is instantly sucked into a negative pressure state. The pressure differential starting component B2 in the pressure differential driving unit B pushes the shaft B3 to move upward under the action of the air pressure difference. During the upward movement of the shaft B3, the air flow channel DE1 between the air path conversion unit D and the pressure control unit E can be closed, and then the air flow channel CD1 between the negative pressure storage unit F and the air path conversion unit D can be unsealed. After the air flow channel CD1 between the negative pressure storage unit F and the air path conversion unit D is unsealed, the locking shaft in the reset self-locking unit C is reset. Component C1 moves upward under the action of the air pressure difference. During the upward movement of the locking shaft component C1, it can drive the induction magnet component B1 to move, thereby closing the air flow hole BC01 between the pressure difference driving unit B and the negative pressure storage unit F. After the air flow hole BC01 between the pressure difference driving unit B and the negative pressure storage unit F is closed, the outside air enters the pressure difference driving cavity B0 through the capillary plug B01, so that the pressure difference on the pressure difference starting component B2 is gradually weakened, and then the reset magnet component E1 in the pressure control unit E passes through the shaft. B3 overcomes the pressure differential reset resistance of the pressure differential starting component B1 and drives the shaft B3 to move downward. During the downward movement of the shaft B3, it can unseal the air flow channel DE1 between the air path conversion unit D and the pressure control unit E, and at the same time close the air flow channel CD1 between the negative pressure storage unit F and the air path conversion unit D. After the air flow channel CD1 between the negative pressure storage unit F and the air path conversion unit D is closed, the locking shaft component C1 in the reset self-locking unit C overcomes the pressure differential resistance and resets under the action of the reset pull-back spring C101.

[0062] After describing the working principle of the control in this embodiment, the working process of this embodiment is further described as follows: The pressure difference driving cavity B0 is as shown in the attached Figure 8The normal pressure state shown is in a normal pressure state; the pneumatic sensing chamber A0 is always maintained at a normal pressure state; the vacuum source chamber C0 is always maintained in a vacuum state. An airflow hole AB01 is provided between the pneumatic sensing chamber A0 and the pressure differential drive chamber B0. The induction magnet group B102 and the starting magnet A204 are always in a repulsive and interlocked relationship. When compressed gas enters the pneumatic sensing interface A01, the pneumatic sensing diaphragm A101 swells, pushing the magnetic push lever A201, causing the magnetic push rod A202 to push the starting magnet A204 to overcome the elastic force of the reset auxiliary spring A205 and the repulsive force of the induction magnet group B102. This causes the induction magnet group B102 to be unable to remain stationary and to undergo angular displacement, opening the hole plug B103. The vacuum source chamber C0 is connected to the pressure differential drive chamber B0, and the pressure differential drive chamber B0 forms a vacuum state. The upper portion of the pressure differential activated diaphragm B201 is in a vacuum state, and the lower pneumatic sensing cavity A0 is in a normal pressure state. The pressure differential activated diaphragm B201 forms an upper and lower pressure difference, pushing the shaft B3 to move upward.

[0063] The shaft B3 moves upward and contacts the shaft seal E202, isolating the atmosphere cavity E0 from the control valve cavity D0. The controller is as shown in the attached figure. Figure 8 The normal pressure state shown in the figure becomes Figure 9 Closed atmosphere state shown.

[0064] The retaining ring B2b moves upward along with the shaft B3, pushing the shaft seal skeleton D01a, opening the air flow channel CD1 between the vacuum source cavity C0 and the control valve cavity D0, and the control valve cavity D0 is immediately in a vacuum state. At this time, the vacuum interface valve interface E0b and the vacuum water valve interface E0c are both in a vacuum state, realizing the valve opening action. At the same time, the flap check valve C105 opens, and the upper chamber C02a of the diaphragm C103 is pulled back to form a negative pressure, which forms a pressure difference with the normal pressure of the lower chamber C02b of the diaphragm C103, pulling the locking shaft C102 upward, causing the lever B101 to return to its original position, and the hole plug B103 to close. At the same time, the return of the induction magnet group B102 causes the starting magnet A204 to return to its original position. The controller is as shown in the attached Figure 9 The closed atmosphere state shown becomes as shown in the attached Figure 10 The open negative pressure state is shown.

[0065] The pressure differential drive cavity B0 is isolated from the vacuum source cavity C0. The pressure differential drive cavity B0 slowly enters the atmosphere through the capillary opening in the capillary rubber plug B01. The pressure differential of the pressure differential power push piece B202 slowly decreases, and the thrust becomes smaller. The reciprocating reset magnet E101 and the fixed magnet E102 push the shaft B3 downward due to the suction force, and the shaft seal skeleton D01a is restored, so that the vacuum source cavity C0 and the control valve cavity D0 are closed. The controller is as shown in the attached Figure 10 The open negative pressure state shown in the attached Figure 11The delayed recovery status is shown.

[0066] The reciprocating reset magnet E101 and the fixed magnet E102 push the shaft B3 downward due to the suction force, and the shaft B3 is disconnected from the shaft seal E202. At this time, the atmospheric cavity E0 is connected to the control valve cavity D0. At this time, the vacuum interface valve interface E0b and the vacuum water valve interface E0c are both in the normal pressure state, realizing the valve closing action. The controller is as shown in the attached figure. Figure 11 The delayed recovery state shown in the attached Figure 8 Normal pressure state shown.

[0067] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that the technical solutions described in the above embodiments can still be modified, or some or all of the technical features therein can be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An electric-free mechanical memory type air-controlled delayed vacuum interface valve controller, characterized in that: It includes a pneumatic sensing unit (A), a pressure difference driving unit (B), a reset self-locking unit (C), an air path conversion unit (D), a pressure control unit (E) and a negative pressure storage unit (F); The pneumatic sensing unit (A) includes a pneumatic drive assembly (A1), which can drive the magnetic push lever assembly (A2) to move under the action of an external force, and the movement of the magnetic push lever assembly (A2) can drive the movement of the magnetic push rod assembly (A3), and the movement of the magnetic push rod assembly (A3) can be linked to the movement of the induction magnet assembly (B1) in the pressure difference drive unit (B), and the movement of the induction magnet assembly (B1) under the linkage of the magnetic push rod assembly (A3) can unseal the closed air flow hole 2 (BC01) between the pressure difference drive unit (B) and the negative pressure storage unit (F); After the second air flow hole (BC01) between the pressure differential driving unit (B) and the negative pressure storage unit (F) is opened, the pressure differential starting component (B2) in the pressure differential driving unit (B) drives the shaft (B3) to move upward under the action of the air pressure difference. During the upward movement of the shaft (B3), the second air flow channel (DE1) between the air path conversion unit (D) and the pressure control unit (E) can be closed, and the first air flow channel (CD1) between the negative pressure storage unit (F) and the air path conversion unit (D) can be unsealed. After the first air flow channel (CD1) between the negative pressure storage unit (F) and the air path conversion unit (D) is unsealed, the locking shaft component (C1) in the reset self-locking unit (C) moves upward under the action of the air pressure difference. During the upward movement of the locking shaft component (C1), the induction magnet component (B1) can be driven to move, thereby closing the second air flow hole (BC01) between the pressure differential driving unit (B) and the negative pressure storage unit (F). After the air flow hole 2 (BC01) between the pressure difference driving unit (B) and the negative pressure storage unit (F) is closed, the reset magnet assembly (E1) in the pressure control unit (E) overcomes the pressure difference reset resistance of the pressure difference starting assembly (B2) through the shaft (B3) to drive the shaft (B3) to move downward. During the downward movement of the shaft (B3), the air flow channel 2 (DE1) between the air path conversion unit (D) and the pressure control unit (E) can be unsealed, and the air flow channel 1 (CD1) between the negative pressure storage unit (F) and the air path conversion unit (D) can be closed. After the air flow channel 1 (CD1) between the negative pressure storage unit (F) and the air path conversion unit (D) is closed, the locking shaft assembly (C1) in the reset self-locking unit (C) overcomes the pressure difference resistance and resets under the action of the reset pull-back spring (C101).

2. The electric-free mechanical memory type air-controlled delayed vacuum interface valve controller according to claim 1, characterized in that: The pneumatic sensing unit (A) comprises a pneumatic sensing cavity (A0), and the pneumatic sensing cavity (A0) is provided with a pneumatic drive assembly (A1) and a magnetic push lever assembly (A2) for movement; The pneumatic drive assembly (A1) includes a pneumatic sensing diaphragm (A101), the pneumatic sensing diaphragm (A101) is arranged at the bottom of the pneumatic sensing cavity (A0), a pressure difference power push piece (A102) is installed on the upper surface of the pneumatic sensing diaphragm (A101), and a pneumatic sensing interface (A01) is arranged at the bottom of the pneumatic sensing cavity (A0). The pneumatic sensing diaphragm (A101) can move up and down in the pneumatic sensing cavity (A0), and the pneumatic sensing diaphragm (A101) can drive the pressure difference power push piece (A102) to move up and down during the up and down movement. The magnetic push lever (A201) in the magnetic push lever assembly (A2) in the pneumatic sensing cavity (A0) is linked to rotate, and during the rotation of the magnetic push lever (A201), the magnetic push rod (A202) can be linked to move in the magnetic push rod slot (A203). A starting magnet (A204) is installed on the upper end of the magnetic push rod (A202). During the movement of the magnetic push rod (A202 in the magnetic push rod slot (A203), the starting magnet (A204) can be driven to move together. The starting magnet (A204) is connected to a reset auxiliary spring (A205) to provide it with a reset force for downward movement.

3. The electric-free mechanical memory type air-controlled delayed vacuum interface valve controller according to claim 2, characterized in that: The pneumatic sensing cavity (A0) is provided with an atmospheric interface (A02) for communicating with the outside atmosphere.

4. The electric-free mechanical memory type air-controlled delayed vacuum interface valve controller according to claim 2, characterized in that: One end of the magnetic push lever (A201) is mounted on a cover plate (A207) in the pneumatic sensing cavity (A0) by means of a self-supplied screw (A206) ​​and can rotate around this end.

5. The electric-free mechanical memory type air-controlled delayed vacuum interface valve controller according to claim 1, characterized in that: The pressure differential drive unit (B) comprises a pressure differential drive cavity (B0), the pressure differential drive cavity (B0) and the pneumatic induction cavity (A0) being connected and installed together and communicating with each other through an air flow hole 1 (AB01), and a pressure differential starting component (B2) and an induction magnet component (B1) being arranged in the pressure differential drive cavity (B0); The induction magnet assembly (B1) includes a lever (B101), one end of the lever (B101) is equipped with an induction magnet group (B102), and the other end is equipped with a hole plug (B103), the induction magnet group (B102) interacts with the starting magnet (A204), and the lever (B101) is also linked with the locking shaft (C102) in the locking shaft assembly (C1), and the lever (B101) can rotate under the interaction between the induction magnet group (B102) and the starting magnet (A204) and the action of the locking shaft (C102) in the locking shaft assembly (C1), so that the hole plug (B103) correspondingly unseals or closes the second airflow hole (BC01); The pressure differential starting assembly (B2) includes a pressure differential starting diaphragm (B201), which is arranged at the bottom of the pressure differential driving cavity (B0) and corresponds to the position of the air flow hole 1 (AB01). The pressure differential starting diaphragm (B201) can move up and down in the pressure differential driving cavity (B0), thereby driving the pressure differential power push piece 2 (B202) installed on its upper surface to move up and down. One end of the shaft (B3) is installed on the pressure differential power push piece 2 (B202), and the other end passes through the pressure differential driving cavity (B0), the vacuum source cavity (C0), the control valve cavity (D0), and the atmospheric cavity (E0) and corresponds to the reset magnet assembly (E1) in the atmospheric cavity. The pressure differential driving cavity (B0) is provided with a capillary rubber plug (B01) to communicate with the outside atmosphere.

6. The electric-free mechanical memory type gas-controlled delayed vacuum interface valve controller according to claim 5, characterized in that: The induction magnet group (B102) includes four induction magnets, and the four induction magnets are arranged at the end of the lever (B101) at an inclination of 45 degrees.

7. The electric-free mechanical memory type air-controlled delayed vacuum interface valve controller according to claim 6, characterized in that: The lever (B101) and the induction magnet are connected and fixed via a non-magnetic plastic screw and nut set (B104).

8. The electric-free mechanical memory type air-controlled delayed vacuum interface valve controller according to claim 5, characterized in that: The pressure difference driving cavity (B0) is provided with a time-delayed capacity expansion interface (B02) for expanding the capacity of the pressure difference driving cavity (B0).

9. The electric-free mechanical memory type air-controlled delayed vacuum interface valve controller according to claim 5, characterized in that: One end of the lever (B101) is mounted on a second cover plate (B106) in the pressure difference driving cavity (B0) by means of a second self-tapping screw (B105) and can rotate around this end.

10. The electric-free mechanical memory type gas-controlled delayed vacuum interface valve controller according to claim 1, characterized in that: The negative pressure storage unit (F) and the reset self-locking unit (C) are arranged in a vacuum source cavity (C0), and the reset self-locking unit (C) includes a locking shaft assembly (C1); The vacuum source cavity (C0) is provided with a vacuum source interface (C01) connected to a vacuum system for maintaining the vacuum state of the vacuum source cavity (C0); a compartment (C02) is provided in the vacuum source cavity (C0); a locking shaft assembly (C1) is provided in the compartment (C02); the locking shaft assembly (C1) includes a pull-back diaphragm (C103); a pressure differential power pull piece (C104) is provided on the upper surface of the pull-back diaphragm (C103); one end of the locking shaft (C102) is connected to the pressure differential power pull piece (C104); the other end extends into the pressure differential drive cavity (B0) and is linked to the lever (B101); the pressure differential power pull piece (C104) is connected to a reset pull-back spring (C101); the pull-back diaphragm (C103) The compartment (C02) is divided into an upper chamber (C02a) and a lower chamber (C02b), the lower chamber (C02b) is in a normal pressure state connected to the outside world, the upper chamber (C02a) is connected to the control valve cavity (D0) through the air flow hole three (C02c), the flap check valve (C105) covers the air flow hole three (C02c), the pull-back diaphragm (C103) can move up and down in the compartment, the pressure difference power pull piece (C104) moves upward or downward accordingly under the action of the pull-back diaphragm (C103) or the reset pull-back spring (C101), thereby driving the locking shaft (C102) to move upward or downward, and the upward movement of the locking shaft can link the lever (B101) to rotate and reset.

11. The electric-free mechanical memory type gas-controlled delayed vacuum interface valve controller according to claim 10, characterized in that: The locking shaft (C102) is provided with a shaft seal 1 (C102a) for isolating the lower chamber (C02b) and the pressure difference driving chamber (B0).

12. The electric-free mechanical memory type gas-controlled delayed vacuum interface valve controller according to claim 10, characterized in that: The shaft (B3) is provided with a second shaft seal (B3a) for isolating the vacuum source cavity (C0) and the pressure difference driving cavity (B0).

13. The electric-free mechanical memory type gas-controlled delayed vacuum interface valve controller according to claim 10, characterized in that: One end of the reset spring (C101) abuts against the pressure difference power pull piece (C104), and the other end abuts against the inner cavity surface of the compartment (C02).

14. The electric-free mechanical memory type gas-controlled delayed vacuum interface valve controller according to claim 10, characterized in that: The air path conversion unit (D) includes a control valve cavity (D0), and a shaft seal assembly (D01) is installed at the bottom of the control valve cavity (D0) to close the air flow channel (CD1) at the connection between the vacuum source cavity (C0) and the control valve cavity (D0). During the upward movement of the shaft (B3), the shaft seal assembly (D01) can be pushed to open the air flow channel (CD1).

15. The electric-free mechanical memory type gas-controlled delayed vacuum interface valve controller according to claim 14, characterized in that: The shaft seal assembly 1 (D01) includes a shaft seal skeleton (D01a), a shaft seal 3 (D01b), a sealing ring (D01c) and a shaft seal skeleton reset spring (D01d). The shaft seal skeleton (D01a) is sleeved on the shaft (B3) and placed outside the air flow channel 1 (CD1). The shaft seal skeleton reset spring (D01d) presses against the shaft seal skeleton (D01a) to close the air flow channel 1 (CD1). A sealing ring (D01c) is provided between the shaft seal skeleton (D01a) and the air flow channel 1 (CD1). A shaft seal 3 (D01b) is provided between the shaft seal skeleton (D01a) and the shaft (B3). During the upward movement of the shaft (B3), the shaft seal skeleton (D01a) is pushed upward and away from the air flow channel 1 (CD1) by the retaining ring (B2b) thereon.

16. The electric-free mechanical memory type gas-controlled delayed vacuum interface valve controller according to claim 1, characterized in that: The pressure control unit (E) includes an atmospheric cavity (E0), and an air flow channel 2 (DE1) is provided at the connection between the atmospheric cavity (E0) and the control valve cavity (D0). The shaft seal assembly 2 (E2) is provided at the air flow channel 2 (DE1). When the shaft (B3) moves upward, it can cooperate with the shaft seal assembly 2 (E2) to close the air flow channel 2 (DE1). The end of the shaft (B3) located in the atmospheric cavity (E0) is also connected to a reset magnet assembly (E1). The shaft (B3) can move downward under the action of the reset magnet assembly (E1) to open the air flow channel 2 (DE1).

17. The electric-free mechanical memory type gas-controlled delayed vacuum interface valve controller according to claim 16, characterized in that: The shaft seal assembly 2 (E2) includes a shaft seal limiter (E201) and a shaft seal 4 (E202); the shaft seal limiter (E201) is installed at the air flow channel 2 (DE1); the shaft seal 4 (E202) is installed at the air flow channel 2 (DE1) and is located below the shaft seal limiter (E201); the shaft (B3) passes through the shaft seal limiter (E201) and the shaft seal 4 (E202); during the upward movement of the shaft (B3), the shaft (B3) can cooperate with the shaft seal limiter (E201) and the shaft seal 4 (E202) to close the air flow channel 2 (DE1) through the raised portion (B3c) thereon.

18. The electric-free mechanical memory type gas-controlled delayed vacuum interface valve controller according to claim 16, characterized in that: The reset magnet assembly (E1) includes a reciprocating reset magnet (E101) and a fixed magnet (E102), the reciprocating reset magnet (E101) and the fixed magnet (E102) being in an attractive state, the shaft (B3) passing through a through hole (E102a) in the middle of the fixed magnet (E102) to support the reciprocating reset magnet (E101), and the reciprocating reset magnet (E101) can move up and down in the atmospheric cavity (E0).

19. The electric-free mechanical memory type gas-controlled delayed vacuum interface valve controller according to claim 16, characterized in that: The atmospheric cavity (E0) is provided with an atmospheric port (E0a), a vacuum interface valve interface (E0b) and a vacuum water valve interface (E0c).

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